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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/usb
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/usb')
-rw-r--r--kernel/drivers/usb/Makefile1
-rw-r--r--kernel/drivers/usb/atm/cxacru.c7
-rw-r--r--kernel/drivers/usb/atm/speedtch.c18
-rw-r--r--kernel/drivers/usb/atm/ueagle-atm.c4
-rw-r--r--kernel/drivers/usb/atm/usbatm.c6
-rw-r--r--kernel/drivers/usb/atm/xusbatm.c6
-rw-r--r--kernel/drivers/usb/chipidea/Kconfig1
-rw-r--r--kernel/drivers/usb/chipidea/bits.h12
-rw-r--r--kernel/drivers/usb/chipidea/ci.h9
-rw-r--r--kernel/drivers/usb/chipidea/ci_hdrc_imx.c170
-rw-r--r--kernel/drivers/usb/chipidea/ci_hdrc_pci.c6
-rw-r--r--kernel/drivers/usb/chipidea/ci_hdrc_usb2.c33
-rw-r--r--kernel/drivers/usb/chipidea/core.c264
-rw-r--r--kernel/drivers/usb/chipidea/debug.c9
-rw-r--r--kernel/drivers/usb/chipidea/host.c32
-rw-r--r--kernel/drivers/usb/chipidea/otg.c50
-rw-r--r--kernel/drivers/usb/chipidea/otg_fsm.c1
-rw-r--r--kernel/drivers/usb/chipidea/udc.c131
-rw-r--r--kernel/drivers/usb/chipidea/usbmisc_imx.c90
-rw-r--r--kernel/drivers/usb/class/cdc-acm.c68
-rw-r--r--kernel/drivers/usb/class/cdc-acm.h3
-rw-r--r--kernel/drivers/usb/class/usblp.c83
-rw-r--r--kernel/drivers/usb/class/usbtmc.c1
-rw-r--r--kernel/drivers/usb/common/Makefile1
-rw-r--r--kernel/drivers/usb/common/common.c115
-rw-r--r--kernel/drivers/usb/common/ulpi.c255
-rw-r--r--kernel/drivers/usb/core/Kconfig23
-rw-r--r--kernel/drivers/usb/core/buffer.c3
-rw-r--r--kernel/drivers/usb/core/config.c12
-rw-r--r--kernel/drivers/usb/core/devio.c19
-rw-r--r--kernel/drivers/usb/core/driver.c15
-rw-r--r--kernel/drivers/usb/core/endpoint.c2
-rw-r--r--kernel/drivers/usb/core/hcd.c132
-rw-r--r--kernel/drivers/usb/core/hub.c276
-rw-r--r--kernel/drivers/usb/core/message.c41
-rw-r--r--kernel/drivers/usb/core/otg_whitelist.h2
-rw-r--r--kernel/drivers/usb/core/port.c4
-rw-r--r--kernel/drivers/usb/core/quirks.c22
-rw-r--r--kernel/drivers/usb/core/sysfs.c88
-rw-r--r--kernel/drivers/usb/core/urb.c3
-rw-r--r--kernel/drivers/usb/core/usb.c2
-rw-r--r--kernel/drivers/usb/core/usb.h2
-rw-r--r--kernel/drivers/usb/dwc2/Kconfig8
-rw-r--r--kernel/drivers/usb/dwc2/Makefile9
-rw-r--r--kernel/drivers/usb/dwc2/core.c768
-rw-r--r--kernel/drivers/usb/dwc2/core.h224
-rw-r--r--kernel/drivers/usb/dwc2/core_intr.c151
-rw-r--r--kernel/drivers/usb/dwc2/debug.h27
-rw-r--r--kernel/drivers/usb/dwc2/debugfs.c771
-rw-r--r--kernel/drivers/usb/dwc2/gadget.c1832
-rw-r--r--kernel/drivers/usb/dwc2/hcd.c500
-rw-r--r--kernel/drivers/usb/dwc2/hcd.h27
-rw-r--r--kernel/drivers/usb/dwc2/hcd_ddma.c10
-rw-r--r--kernel/drivers/usb/dwc2/hcd_intr.c218
-rw-r--r--kernel/drivers/usb/dwc2/hcd_queue.c88
-rw-r--r--kernel/drivers/usb/dwc2/hw.h1
-rw-r--r--kernel/drivers/usb/dwc2/platform.c299
-rw-r--r--kernel/drivers/usb/dwc3/Kconfig14
-rw-r--r--kernel/drivers/usb/dwc3/Makefile6
-rw-r--r--kernel/drivers/usb/dwc3/core.c208
-rw-r--r--kernel/drivers/usb/dwc3/core.h54
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-exynos.c2
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-keystone.c2
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-omap.c79
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-pci.c85
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-qcom.c4
-rw-r--r--kernel/drivers/usb/dwc3/dwc3-st.c16
-rw-r--r--kernel/drivers/usb/dwc3/ep0.c97
-rw-r--r--kernel/drivers/usb/dwc3/gadget.c256
-rw-r--r--kernel/drivers/usb/dwc3/platform_data.h5
-rw-r--r--kernel/drivers/usb/dwc3/ulpi.c91
-rw-r--r--kernel/drivers/usb/gadget/Kconfig2
-rw-r--r--kernel/drivers/usb/gadget/composite.c47
-rw-r--r--kernel/drivers/usb/gadget/config.c56
-rw-r--r--kernel/drivers/usb/gadget/configfs.c326
-rw-r--r--kernel/drivers/usb/gadget/epautoconf.c296
-rw-r--r--kernel/drivers/usb/gadget/function/f_acm.c50
-rw-r--r--kernel/drivers/usb/gadget/function/f_ecm.c43
-rw-r--r--kernel/drivers/usb/gadget/function/f_eem.c24
-rw-r--r--kernel/drivers/usb/gadget/function/f_fs.c16
-rw-r--r--kernel/drivers/usb/gadget/function/f_hid.c50
-rw-r--r--kernel/drivers/usb/gadget/function/f_loopback.c198
-rw-r--r--kernel/drivers/usb/gadget/function/f_mass_storage.c299
-rw-r--r--kernel/drivers/usb/gadget/function/f_mass_storage.h6
-rw-r--r--kernel/drivers/usb/gadget/function/f_midi.c72
-rw-r--r--kernel/drivers/usb/gadget/function/f_ncm.c42
-rw-r--r--kernel/drivers/usb/gadget/function/f_obex.c58
-rw-r--r--kernel/drivers/usb/gadget/function/f_phonet.c33
-rw-r--r--kernel/drivers/usb/gadget/function/f_printer.c49
-rw-r--r--kernel/drivers/usb/gadget/function/f_rndis.c92
-rw-r--r--kernel/drivers/usb/gadget/function/f_serial.c37
-rw-r--r--kernel/drivers/usb/gadget/function/f_sourcesink.c256
-rw-r--r--kernel/drivers/usb/gadget/function/f_subset.c18
-rw-r--r--kernel/drivers/usb/gadget/function/f_uac1.c43
-rw-r--r--kernel/drivers/usb/gadget/function/f_uac2.c41
-rw-r--r--kernel/drivers/usb/gadget/function/f_uvc.c49
-rw-r--r--kernel/drivers/usb/gadget/function/rndis.c352
-rw-r--r--kernel/drivers/usb/gadget/function/rndis.h33
-rw-r--r--kernel/drivers/usb/gadget/function/storage_common.c2
-rw-r--r--kernel/drivers/usb/gadget/function/storage_common.h2
-rw-r--r--kernel/drivers/usb/gadget/function/u_ether.c11
-rw-r--r--kernel/drivers/usb/gadget/function/u_ether.h4
-rw-r--r--kernel/drivers/usb/gadget/function/u_ether_configfs.h44
-rw-r--r--kernel/drivers/usb/gadget/function/u_rndis.h2
-rw-r--r--kernel/drivers/usb/gadget/function/u_serial.c11
-rw-r--r--kernel/drivers/usb/gadget/function/u_uac1.h2
-rw-r--r--kernel/drivers/usb/gadget/function/uvc.h1
-rw-r--r--kernel/drivers/usb/gadget/function/uvc_configfs.c387
-rw-r--r--kernel/drivers/usb/gadget/function/uvc_queue.c28
-rw-r--r--kernel/drivers/usb/gadget/function/uvc_queue.h4
-rw-r--r--kernel/drivers/usb/gadget/legacy/Kconfig2
-rw-r--r--kernel/drivers/usb/gadget/legacy/acm_ms.c41
-rw-r--r--kernel/drivers/usb/gadget/legacy/audio.c41
-rw-r--r--kernel/drivers/usb/gadget/legacy/cdc2.c35
-rw-r--r--kernel/drivers/usb/gadget/legacy/dbgp.c28
-rw-r--r--kernel/drivers/usb/gadget/legacy/ether.c36
-rw-r--r--kernel/drivers/usb/gadget/legacy/g_ffs.c32
-rw-r--r--kernel/drivers/usb/gadget/legacy/gmidi.c8
-rw-r--r--kernel/drivers/usb/gadget/legacy/hid.c37
-rw-r--r--kernel/drivers/usb/gadget/legacy/inode.c9
-rw-r--r--kernel/drivers/usb/gadget/legacy/mass_storage.c41
-rw-r--r--kernel/drivers/usb/gadget/legacy/multi.c43
-rw-r--r--kernel/drivers/usb/gadget/legacy/ncm.c34
-rw-r--r--kernel/drivers/usb/gadget/legacy/nokia.c105
-rw-r--r--kernel/drivers/usb/gadget/legacy/printer.c51
-rw-r--r--kernel/drivers/usb/gadget/legacy/serial.c38
-rw-r--r--kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.c255
-rw-r--r--kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.h12
-rw-r--r--kernel/drivers/usb/gadget/legacy/zero.c41
-rw-r--r--kernel/drivers/usb/gadget/udc/Kconfig2
-rw-r--r--kernel/drivers/usb/gadget/udc/amd5536udc.c724
-rw-r--r--kernel/drivers/usb/gadget/udc/amd5536udc.h5
-rw-r--r--kernel/drivers/usb/gadget/udc/at91_udc.c39
-rw-r--r--kernel/drivers/usb/gadget/udc/at91_udc.h8
-rw-r--r--kernel/drivers/usb/gadget/udc/atmel_usba_udc.c55
-rw-r--r--kernel/drivers/usb/gadget/udc/atmel_usba_udc.h2
-rw-r--r--kernel/drivers/usb/gadget/udc/bcm63xx_udc.c29
-rw-r--r--kernel/drivers/usb/gadget/udc/bdc/bdc.h2
-rw-r--r--kernel/drivers/usb/gadget/udc/bdc/bdc_core.c3
-rw-r--r--kernel/drivers/usb/gadget/udc/bdc/bdc_ep.c15
-rw-r--r--kernel/drivers/usb/gadget/udc/dummy_hcd.c147
-rw-r--r--kernel/drivers/usb/gadget/udc/fotg210-udc.c32
-rw-r--r--kernel/drivers/usb/gadget/udc/fsl_qe_udc.c11
-rw-r--r--kernel/drivers/usb/gadget/udc/fsl_udc_core.c13
-rw-r--r--kernel/drivers/usb/gadget/udc/fusb300_udc.c11
-rw-r--r--kernel/drivers/usb/gadget/udc/gadget_chips.h55
-rw-r--r--kernel/drivers/usb/gadget/udc/goku_udc.c38
-rw-r--r--kernel/drivers/usb/gadget/udc/gr_udc.c14
-rw-r--r--kernel/drivers/usb/gadget/udc/lpc32xx_udc.c32
-rw-r--r--kernel/drivers/usb/gadget/udc/m66592-udc.c11
-rw-r--r--kernel/drivers/usb/gadget/udc/mv_u3d_core.c12
-rw-r--r--kernel/drivers/usb/gadget/udc/mv_udc_core.c12
-rw-r--r--kernel/drivers/usb/gadget/udc/net2272.c15
-rw-r--r--kernel/drivers/usb/gadget/udc/net2280.c237
-rw-r--r--kernel/drivers/usb/gadget/udc/omap_udc.c22
-rw-r--r--kernel/drivers/usb/gadget/udc/pch_udc.c46
-rw-r--r--kernel/drivers/usb/gadget/udc/pxa25x_udc.c30
-rw-r--r--kernel/drivers/usb/gadget/udc/pxa27x_udc.c6
-rw-r--r--kernel/drivers/usb/gadget/udc/pxa27x_udc.h40
-rw-r--r--kernel/drivers/usb/gadget/udc/r8a66597-udc.c10
-rw-r--r--kernel/drivers/usb/gadget/udc/s3c-hsudc.c15
-rw-r--r--kernel/drivers/usb/gadget/udc/s3c2410_udc.c38
-rw-r--r--kernel/drivers/usb/gadget/udc/udc-core.c104
-rw-r--r--kernel/drivers/usb/gadget/udc/udc-xilinx.c9
-rw-r--r--kernel/drivers/usb/host/Kconfig33
-rw-r--r--kernel/drivers/usb/host/Makefile11
-rw-r--r--kernel/drivers/usb/host/bcma-hcd.c128
-rw-r--r--kernel/drivers/usb/host/ehci-dbg.c3
-rw-r--r--kernel/drivers/usb/host/ehci-fsl.c221
-rw-r--r--kernel/drivers/usb/host/ehci-fsl.h1
-rw-r--r--kernel/drivers/usb/host/ehci-hcd.c10
-rw-r--r--kernel/drivers/usb/host/ehci-hub.c10
-rw-r--r--kernel/drivers/usb/host/ehci-msm.c6
-rw-r--r--kernel/drivers/usb/host/ehci-orion.c3
-rw-r--r--kernel/drivers/usb/host/ehci-platform.c96
-rw-r--r--kernel/drivers/usb/host/ehci-spear.c1
-rw-r--r--kernel/drivers/usb/host/ehci-st.c7
-rw-r--r--kernel/drivers/usb/host/ehci-tegra.c12
-rw-r--r--kernel/drivers/usb/host/ehci.h15
-rw-r--r--kernel/drivers/usb/host/fotg210-hcd.c1962
-rw-r--r--kernel/drivers/usb/host/fotg210.h36
-rw-r--r--kernel/drivers/usb/host/fsl-mph-dr-of.c38
-rw-r--r--kernel/drivers/usb/host/fusbh200-hcd.c5893
-rw-r--r--kernel/drivers/usb/host/fusbh200.h675
-rw-r--r--kernel/drivers/usb/host/isp116x-hcd.c3
-rw-r--r--kernel/drivers/usb/host/max3421-hcd.c1
-rw-r--r--kernel/drivers/usb/host/ohci-at91.c178
-rw-r--r--kernel/drivers/usb/host/ohci-dbg.c6
-rw-r--r--kernel/drivers/usb/host/ohci-hcd.c3
-rw-r--r--kernel/drivers/usb/host/ohci-nxp.c18
-rw-r--r--kernel/drivers/usb/host/ohci-platform.c69
-rw-r--r--kernel/drivers/usb/host/ohci-q.c3
-rw-r--r--kernel/drivers/usb/host/ohci-spear.c1
-rw-r--r--kernel/drivers/usb/host/ohci-tmio.c2
-rw-r--r--kernel/drivers/usb/host/oxu210hp-hcd.c9
-rw-r--r--kernel/drivers/usb/host/ssb-hcd.c15
-rw-r--r--kernel/drivers/usb/host/u132-hcd.c40
-rw-r--r--kernel/drivers/usb/host/uhci-platform.c1
-rw-r--r--kernel/drivers/usb/host/whci/init.c3
-rw-r--r--kernel/drivers/usb/host/whci/qset.c4
-rw-r--r--kernel/drivers/usb/host/xhci-dbg.c21
-rw-r--r--kernel/drivers/usb/host/xhci-hub.c308
-rw-r--r--kernel/drivers/usb/host/xhci-mem.c67
-rw-r--r--kernel/drivers/usb/host/xhci-pci.c121
-rw-r--r--kernel/drivers/usb/host/xhci-plat.c72
-rw-r--r--kernel/drivers/usb/host/xhci-ring.c446
-rw-r--r--kernel/drivers/usb/host/xhci.c132
-rw-r--r--kernel/drivers/usb/host/xhci.h103
-rw-r--r--kernel/drivers/usb/image/microtek.c1
-rw-r--r--kernel/drivers/usb/isp1760/isp1760-udc.c17
-rw-r--r--kernel/drivers/usb/misc/chaoskey.c2
-rw-r--r--kernel/drivers/usb/misc/ftdi-elan.c12
-rw-r--r--kernel/drivers/usb/misc/ldusb.c10
-rw-r--r--kernel/drivers/usb/misc/lvstest.c2
-rw-r--r--kernel/drivers/usb/misc/sisusbvga/sisusb.c39
-rw-r--r--kernel/drivers/usb/misc/sisusbvga/sisusb_con.c54
-rw-r--r--kernel/drivers/usb/misc/usb3503.c2
-rw-r--r--kernel/drivers/usb/misc/usbtest.c155
-rw-r--r--kernel/drivers/usb/misc/uss720.c6
-rw-r--r--kernel/drivers/usb/mon/mon_bin.c7
-rw-r--r--kernel/drivers/usb/mon/mon_main.c12
-rw-r--r--kernel/drivers/usb/mon/mon_stat.c3
-rw-r--r--kernel/drivers/usb/musb/Kconfig53
-rw-r--r--kernel/drivers/usb/musb/Makefile1
-rw-r--r--kernel/drivers/usb/musb/am35x.c8
-rw-r--r--kernel/drivers/usb/musb/blackfin.c5
-rw-r--r--kernel/drivers/usb/musb/cppi_dma.c9
-rw-r--r--kernel/drivers/usb/musb/da8xx.c6
-rw-r--r--kernel/drivers/usb/musb/davinci.c7
-rw-r--r--kernel/drivers/usb/musb/jz4740.c6
-rw-r--r--kernel/drivers/usb/musb/musb_core.c137
-rw-r--r--kernel/drivers/usb/musb/musb_core.h30
-rw-r--r--kernel/drivers/usb/musb/musb_cppi41.c17
-rw-r--r--kernel/drivers/usb/musb/musb_debugfs.c100
-rw-r--r--kernel/drivers/usb/musb/musb_dma.h67
-rw-r--r--kernel/drivers/usb/musb/musb_dsps.c34
-rw-r--r--kernel/drivers/usb/musb/musb_gadget.c109
-rw-r--r--kernel/drivers/usb/musb/musb_host.c558
-rw-r--r--kernel/drivers/usb/musb/musb_io.h2
-rw-r--r--kernel/drivers/usb/musb/musb_regs.h80
-rw-r--r--kernel/drivers/usb/musb/musb_virthub.c2
-rw-r--r--kernel/drivers/usb/musb/musbhsdma.c9
-rw-r--r--kernel/drivers/usb/musb/omap2430.c34
-rw-r--r--kernel/drivers/usb/musb/sunxi.c768
-rw-r--r--kernel/drivers/usb/musb/tusb6010.c8
-rw-r--r--kernel/drivers/usb/musb/tusb6010.h6
-rw-r--r--kernel/drivers/usb/musb/tusb6010_omap.c9
-rw-r--r--kernel/drivers/usb/musb/ux500.c10
-rw-r--r--kernel/drivers/usb/musb/ux500_dma.c8
-rw-r--r--kernel/drivers/usb/phy/Kconfig34
-rw-r--r--kernel/drivers/usb/phy/Makefile2
-rw-r--r--kernel/drivers/usb/phy/phy-ab8500-usb.c2
-rw-r--r--kernel/drivers/usb/phy/phy-generic.c9
-rw-r--r--kernel/drivers/usb/phy/phy-isp1301.c1
-rw-r--r--kernel/drivers/usb/phy/phy-keystone.c6
-rw-r--r--kernel/drivers/usb/phy/phy-msm-usb.c202
-rw-r--r--kernel/drivers/usb/phy/phy-mxs-usb.c18
-rw-r--r--kernel/drivers/usb/phy/phy-omap-otg.c22
-rw-r--r--kernel/drivers/usb/phy/phy-qcom-8x16-usb.c437
-rw-r--r--kernel/drivers/usb/phy/phy-rcar-gen2-usb.c246
-rw-r--r--kernel/drivers/usb/phy/phy-tahvo.c36
-rw-r--r--kernel/drivers/usb/phy/phy-tegra-usb.c2
-rw-r--r--kernel/drivers/usb/phy/phy.c97
-rw-r--r--kernel/drivers/usb/renesas_usbhs/common.c28
-rw-r--r--kernel/drivers/usb/renesas_usbhs/fifo.h9
-rw-r--r--kernel/drivers/usb/renesas_usbhs/mod.c63
-rw-r--r--kernel/drivers/usb/renesas_usbhs/mod_gadget.c79
-rw-r--r--kernel/drivers/usb/renesas_usbhs/rcar2.c1
-rw-r--r--kernel/drivers/usb/serial/Kconfig2
-rw-r--r--kernel/drivers/usb/serial/cp210x.c6
-rw-r--r--kernel/drivers/usb/serial/ftdi_sio.c1
-rw-r--r--kernel/drivers/usb/serial/ftdi_sio_ids.h3
-rw-r--r--kernel/drivers/usb/serial/io_ti.c741
-rw-r--r--kernel/drivers/usb/serial/ipaq.c3
-rw-r--r--kernel/drivers/usb/serial/mos7720.c253
-rw-r--r--kernel/drivers/usb/serial/mos7840.c11
-rw-r--r--kernel/drivers/usb/serial/mxuport.c10
-rw-r--r--kernel/drivers/usb/serial/option.c129
-rw-r--r--kernel/drivers/usb/serial/qcserial.c112
-rw-r--r--kernel/drivers/usb/serial/symbolserial.c18
-rw-r--r--kernel/drivers/usb/serial/ti_usb_3410_5052.c2
-rw-r--r--kernel/drivers/usb/serial/ti_usb_3410_5052.h4
-rw-r--r--kernel/drivers/usb/serial/usb-serial-simple.c1
-rw-r--r--kernel/drivers/usb/serial/usb-wwan.h2
-rw-r--r--kernel/drivers/usb/serial/usb_wwan.c44
-rw-r--r--kernel/drivers/usb/serial/visor.c11
-rw-r--r--kernel/drivers/usb/serial/whiteheat.c31
-rw-r--r--kernel/drivers/usb/storage/alauda.c12
-rw-r--r--kernel/drivers/usb/storage/cypress_atacb.c10
-rw-r--r--kernel/drivers/usb/storage/datafab.c12
-rw-r--r--kernel/drivers/usb/storage/ene_ub6250.c11
-rw-r--r--kernel/drivers/usb/storage/freecom.c12
-rw-r--r--kernel/drivers/usb/storage/isd200.c41
-rw-r--r--kernel/drivers/usb/storage/jumpshot.c11
-rw-r--r--kernel/drivers/usb/storage/karma.c12
-rw-r--r--kernel/drivers/usb/storage/onetouch.c12
-rw-r--r--kernel/drivers/usb/storage/realtek_cr.c12
-rw-r--r--kernel/drivers/usb/storage/scsiglue.c31
-rw-r--r--kernel/drivers/usb/storage/scsiglue.h3
-rw-r--r--kernel/drivers/usb/storage/sddr09.c12
-rw-r--r--kernel/drivers/usb/storage/sddr55.c11
-rw-r--r--kernel/drivers/usb/storage/shuttle_usbat.c12
-rw-r--r--kernel/drivers/usb/storage/transport.c2
-rw-r--r--kernel/drivers/usb/storage/uas.c26
-rw-r--r--kernel/drivers/usb/storage/unusual_devs.h13
-rw-r--r--kernel/drivers/usb/storage/unusual_uas.h2
-rw-r--r--kernel/drivers/usb/storage/usb.c16
-rw-r--r--kernel/drivers/usb/storage/usb.h16
-rw-r--r--kernel/drivers/usb/usbip/vhci_hcd.c8
309 files changed, 14620 insertions, 15240 deletions
diff --git a/kernel/drivers/usb/Makefile b/kernel/drivers/usb/Makefile
index d8926c6cd..d5c57f1e9 100644
--- a/kernel/drivers/usb/Makefile
+++ b/kernel/drivers/usb/Makefile
@@ -27,7 +27,6 @@ obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_HWA_HCD) += host/
obj-$(CONFIG_USB_IMX21_HCD) += host/
obj-$(CONFIG_USB_FSL_MPH_DR_OF) += host/
-obj-$(CONFIG_USB_FUSBH200_HCD) += host/
obj-$(CONFIG_USB_FOTG210_HCD) += host/
obj-$(CONFIG_USB_MAX3421_HCD) += host/
diff --git a/kernel/drivers/usb/atm/cxacru.c b/kernel/drivers/usb/atm/cxacru.c
index 813d4d3a5..1173f9cbc 100644
--- a/kernel/drivers/usb/atm/cxacru.c
+++ b/kernel/drivers/usb/atm/cxacru.c
@@ -270,6 +270,7 @@ static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf)
static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
{
static char *str[] = { "no", "yes" };
+
if (unlikely(value >= ARRAY_SIZE(str)))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
@@ -278,6 +279,7 @@ static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
{
static char *str[] = { NULL, "not connected", "connected", "lost" };
+
if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
return snprintf(buf, PAGE_SIZE, "%u\n", value);
return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
@@ -702,6 +704,7 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
len = ret / 4;
for (offb = 0; offb < len; ) {
int l = le32_to_cpu(buf[offb++]);
+
if (l < 0 || l > stride || l > (len - offb) / 2) {
if (printk_ratelimit())
usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n",
@@ -732,6 +735,7 @@ cleanup:
static int cxacru_card_status(struct cxacru_data *instance)
{
int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
+
if (ret < 0) { /* firmware not loaded */
usb_dbg(instance->usbatm, "cxacru_adsl_start: CARD_GET_STATUS returned %d\n", ret);
return ret;
@@ -945,6 +949,7 @@ static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw,
offb = offd = 0;
do {
int l = min_t(int, stride, size - offd);
+
buf[offb++] = fw;
buf[offb++] = l;
buf[offb++] = code1;
@@ -1091,8 +1096,8 @@ static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
{
const struct firmware *fw, *bp;
struct cxacru_data *instance = usbatm_instance->driver_data;
-
int ret = cxacru_find_firmware(instance, "fw", &fw);
+
if (ret) {
usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n");
return ret;
diff --git a/kernel/drivers/usb/atm/speedtch.c b/kernel/drivers/usb/atm/speedtch.c
index 0dc8c06a7..0270d1312 100644
--- a/kernel/drivers/usb/atm/speedtch.c
+++ b/kernel/drivers/usb/atm/speedtch.c
@@ -255,7 +255,8 @@ static int speedtch_upload_firmware(struct speedtch_instance_data *instance,
usb_dbg(usbatm, "%s entered\n", __func__);
- if (!(buffer = (unsigned char *)__get_free_page(GFP_KERNEL))) {
+ buffer = (unsigned char *)__get_free_page(GFP_KERNEL);
+ if (!buffer) {
ret = -ENOMEM;
usb_dbg(usbatm, "%s: no memory for buffer!\n", __func__);
goto out;
@@ -638,7 +639,8 @@ static void speedtch_handle_int(struct urb *int_urb)
goto fail;
}
- if ((int_urb = instance->int_urb)) {
+ int_urb = instance->int_urb;
+ if (int_urb) {
ret = usb_submit_urb(int_urb, GFP_ATOMIC);
schedule_work(&instance->status_check_work);
if (ret < 0) {
@@ -650,7 +652,8 @@ static void speedtch_handle_int(struct urb *int_urb)
return;
fail:
- if ((int_urb = instance->int_urb))
+ int_urb = instance->int_urb;
+ if (int_urb)
mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY));
}
@@ -759,11 +762,13 @@ static void speedtch_release_interfaces(struct usb_device *usb_dev,
struct usb_interface *cur_intf;
int i;
- for (i = 0; i < num_interfaces; i++)
- if ((cur_intf = usb_ifnum_to_if(usb_dev, i))) {
+ for (i = 0; i < num_interfaces; i++) {
+ cur_intf = usb_ifnum_to_if(usb_dev, i);
+ if (cur_intf) {
usb_set_intfdata(cur_intf, NULL);
usb_driver_release_interface(&speedtch_usb_driver, cur_intf);
}
+ }
}
static int speedtch_bind(struct usbatm_data *usbatm,
@@ -787,7 +792,8 @@ static int speedtch_bind(struct usbatm_data *usbatm,
return -ENODEV;
}
- if (!(data_intf = usb_ifnum_to_if(usb_dev, INTERFACE_DATA))) {
+ data_intf = usb_ifnum_to_if(usb_dev, INTERFACE_DATA);
+ if (!data_intf) {
usb_err(usbatm, "%s: data interface not found!\n", __func__);
return -ENODEV;
}
diff --git a/kernel/drivers/usb/atm/ueagle-atm.c b/kernel/drivers/usb/atm/ueagle-atm.c
index 888998a7f..a2ae88dbd 100644
--- a/kernel/drivers/usb/atm/ueagle-atm.c
+++ b/kernel/drivers/usb/atm/ueagle-atm.c
@@ -1599,7 +1599,7 @@ static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
char file_arr[] = "CMVxy.bin";
char *file;
- kparam_block_sysfs_write(cmv_file);
+ kernel_param_lock(THIS_MODULE);
/* set proper name corresponding modem version and line type */
if (cmv_file[sc->modem_index] == NULL) {
if (UEA_CHIP_VERSION(sc) == ADI930)
@@ -1618,7 +1618,7 @@ static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
strlcat(cmv_name, file, UEA_FW_NAME_MAX);
if (ver == 2)
strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
- kparam_unblock_sysfs_write(cmv_file);
+ kernel_param_unlock(THIS_MODULE);
}
static int request_cmvs_old(struct uea_softc *sc,
diff --git a/kernel/drivers/usb/atm/usbatm.c b/kernel/drivers/usb/atm/usbatm.c
index dada0146c..db322d9cc 100644
--- a/kernel/drivers/usb/atm/usbatm.c
+++ b/kernel/drivers/usb/atm/usbatm.c
@@ -382,7 +382,8 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
"%s: got packet (length: %u, pdu_length: %u, vcc: 0x%p)",
__func__, length, pdu_length, vcc);
- if (!(skb = dev_alloc_skb(length))) {
+ skb = dev_alloc_skb(length);
+ if (!skb) {
if (printk_ratelimit())
atm_err(instance, "%s: no memory for skb (length: %u)!\n",
__func__, length);
@@ -816,7 +817,8 @@ static int usbatm_atm_open(struct atm_vcc *vcc)
goto fail;
}
- if (!(new = kzalloc(sizeof(struct usbatm_vcc_data), GFP_KERNEL))) {
+ new = kzalloc(sizeof(struct usbatm_vcc_data), GFP_KERNEL);
+ if (!new) {
atm_err(instance, "%s: no memory for vcc_data!\n", __func__);
ret = -ENOMEM;
goto fail;
diff --git a/kernel/drivers/usb/atm/xusbatm.c b/kernel/drivers/usb/atm/xusbatm.c
index b3b1bb78b..a87597f88 100644
--- a/kernel/drivers/usb/atm/xusbatm.c
+++ b/kernel/drivers/usb/atm/xusbatm.c
@@ -73,7 +73,8 @@ static int xusbatm_capture_intf(struct usbatm_data *usbatm, struct usb_device *u
usb_err(usbatm, "%s: failed to claim interface %2d (%d)!\n", __func__, ifnum, ret);
return ret;
}
- if ((ret = usb_set_interface(usb_dev, ifnum, altsetting))) {
+ ret = usb_set_interface(usb_dev, ifnum, altsetting);
+ if (ret) {
usb_err(usbatm, "%s: altsetting %2d for interface %2d failed (%d)!\n", __func__, altsetting, ifnum, ret);
return ret;
}
@@ -128,7 +129,8 @@ static int xusbatm_bind(struct usbatm_data *usbatm,
rx_intf->altsetting->desc.bInterfaceNumber,
tx_intf->altsetting->desc.bInterfaceNumber);
- if ((ret = xusbatm_capture_intf(usbatm, usb_dev, rx_intf, rx_alt, rx_intf != intf)))
+ ret = xusbatm_capture_intf(usbatm, usb_dev, rx_intf, rx_alt, rx_intf != intf);
+ if (ret)
return ret;
if ((tx_intf != rx_intf) && (ret = xusbatm_capture_intf(usbatm, usb_dev, tx_intf, tx_alt, tx_intf != intf))) {
diff --git a/kernel/drivers/usb/chipidea/Kconfig b/kernel/drivers/usb/chipidea/Kconfig
index 5ce3f1d6a..5619b8ca3 100644
--- a/kernel/drivers/usb/chipidea/Kconfig
+++ b/kernel/drivers/usb/chipidea/Kconfig
@@ -1,6 +1,7 @@
config USB_CHIPIDEA
tristate "ChipIdea Highspeed Dual Role Controller"
depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA
+ select EXTCON
help
Say Y here if your system has a dual role high speed USB
controller based on ChipIdea silicon IP. Currently, only the
diff --git a/kernel/drivers/usb/chipidea/bits.h b/kernel/drivers/usb/chipidea/bits.h
index 3cb9bda51..e462f55c8 100644
--- a/kernel/drivers/usb/chipidea/bits.h
+++ b/kernel/drivers/usb/chipidea/bits.h
@@ -25,6 +25,9 @@
#define VERSION (0xF << 25)
#define CIVERSION (0x7 << 29)
+/* SBUSCFG */
+#define AHBBRST_MASK 0x7
+
/* HCCPARAMS */
#define HCCPARAMS_LEN BIT(17)
@@ -53,6 +56,15 @@
#define DEVICEADDR_USBADRA BIT(24)
#define DEVICEADDR_USBADR (0x7FUL << 25)
+/* TTCTRL */
+#define TTCTRL_TTHA_MASK (0x7fUL << 24)
+/* Set non-zero value for internal TT Hub address representation */
+#define TTCTRL_TTHA (0x7fUL << 24)
+
+/* BURSTSIZE */
+#define RX_BURST_MASK 0xff
+#define TX_BURST_MASK 0xff00
+
/* PORTSC */
#define PORTSC_CCS BIT(0)
#define PORTSC_CSC BIT(1)
diff --git a/kernel/drivers/usb/chipidea/ci.h b/kernel/drivers/usb/chipidea/ci.h
index 6d6200e37..41d7cf6d6 100644
--- a/kernel/drivers/usb/chipidea/ci.h
+++ b/kernel/drivers/usb/chipidea/ci.h
@@ -50,6 +50,8 @@ enum ci_hw_regs {
OP_USBINTR,
OP_DEVICEADDR,
OP_ENDPTLISTADDR,
+ OP_TTCTRL,
+ OP_BURSTSIZE,
OP_PORTSC,
OP_DEVLC,
OP_OTGSC,
@@ -406,8 +408,11 @@ static inline u32 hw_test_and_write(struct ci_hdrc *ci, enum ci_hw_regs reg,
static inline bool ci_otg_is_fsm_mode(struct ci_hdrc *ci)
{
#ifdef CONFIG_USB_OTG_FSM
+ struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps;
+
return ci->is_otg && ci->roles[CI_ROLE_HOST] &&
- ci->roles[CI_ROLE_GADGET];
+ ci->roles[CI_ROLE_GADGET] && (otg_caps->srp_support ||
+ otg_caps->hnp_support || otg_caps->adp_support);
#else
return false;
#endif
@@ -426,4 +431,6 @@ u8 hw_port_test_get(struct ci_hdrc *ci);
int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
u32 value, unsigned int timeout_ms);
+void ci_platform_configure(struct ci_hdrc *ci);
+
#endif /* __DRIVERS_USB_CHIPIDEA_CI_H */
diff --git a/kernel/drivers/usb/chipidea/ci_hdrc_imx.c b/kernel/drivers/usb/chipidea/ci_hdrc_imx.c
index 389f0e034..5a048b7b9 100644
--- a/kernel/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/kernel/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -29,34 +29,50 @@ struct ci_hdrc_imx_platform_flag {
};
static const struct ci_hdrc_imx_platform_flag imx27_usb_data = {
+ CI_HDRC_DISABLE_STREAMING,
};
static const struct ci_hdrc_imx_platform_flag imx28_usb_data = {
.flags = CI_HDRC_IMX28_WRITE_FIX |
- CI_HDRC_TURN_VBUS_EARLY_ON,
+ CI_HDRC_TURN_VBUS_EARLY_ON |
+ CI_HDRC_DISABLE_STREAMING,
};
static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = {
.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
- CI_HDRC_TURN_VBUS_EARLY_ON,
+ CI_HDRC_TURN_VBUS_EARLY_ON |
+ CI_HDRC_DISABLE_STREAMING,
};
static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = {
.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
- CI_HDRC_TURN_VBUS_EARLY_ON,
+ CI_HDRC_TURN_VBUS_EARLY_ON |
+ CI_HDRC_DISABLE_HOST_STREAMING,
};
static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = {
.flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
+ CI_HDRC_TURN_VBUS_EARLY_ON |
+ CI_HDRC_DISABLE_HOST_STREAMING,
+};
+
+static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = {
+ .flags = CI_HDRC_SUPPORTS_RUNTIME_PM |
CI_HDRC_TURN_VBUS_EARLY_ON,
};
+static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = {
+ .flags = CI_HDRC_SUPPORTS_RUNTIME_PM,
+};
+
static const struct of_device_id ci_hdrc_imx_dt_ids[] = {
{ .compatible = "fsl,imx28-usb", .data = &imx28_usb_data},
{ .compatible = "fsl,imx27-usb", .data = &imx27_usb_data},
{ .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data},
{ .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data},
- { .compatible = "fsl,imx6sx-usb", .data = &imx6sl_usb_data},
+ { .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data},
+ { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data},
+ { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids);
@@ -68,6 +84,12 @@ struct ci_hdrc_imx_data {
struct imx_usbmisc_data *usbmisc_data;
bool supports_runtime_pm;
bool in_lpm;
+ /* SoC before i.mx6 (except imx23/imx28) needs three clks */
+ bool need_three_clks;
+ struct clk *clk_ipg;
+ struct clk *clk_ahb;
+ struct clk *clk_per;
+ /* --------------------------------- */
};
/* Common functions shared by usbmisc drivers */
@@ -104,7 +126,7 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
misc_pdev = of_find_device_by_node(args.np);
of_node_put(args.np);
- if (!misc_pdev)
+ if (!misc_pdev || !platform_get_drvdata(misc_pdev))
return ERR_PTR(-EPROBE_DEFER);
data->dev = &misc_pdev->dev;
@@ -119,6 +141,102 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
}
/* End of common functions shared by usbmisc drivers*/
+static int imx_get_clks(struct device *dev)
+{
+ struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+ int ret = 0;
+
+ data->clk_ipg = devm_clk_get(dev, "ipg");
+ if (IS_ERR(data->clk_ipg)) {
+ /* If the platform only needs one clocks */
+ data->clk = devm_clk_get(dev, NULL);
+ if (IS_ERR(data->clk)) {
+ ret = PTR_ERR(data->clk);
+ dev_err(dev,
+ "Failed to get clks, err=%ld,%ld\n",
+ PTR_ERR(data->clk), PTR_ERR(data->clk_ipg));
+ return ret;
+ }
+ return ret;
+ }
+
+ data->clk_ahb = devm_clk_get(dev, "ahb");
+ if (IS_ERR(data->clk_ahb)) {
+ ret = PTR_ERR(data->clk_ahb);
+ dev_err(dev,
+ "Failed to get ahb clock, err=%d\n", ret);
+ return ret;
+ }
+
+ data->clk_per = devm_clk_get(dev, "per");
+ if (IS_ERR(data->clk_per)) {
+ ret = PTR_ERR(data->clk_per);
+ dev_err(dev,
+ "Failed to get per clock, err=%d\n", ret);
+ return ret;
+ }
+
+ data->need_three_clks = true;
+ return ret;
+}
+
+static int imx_prepare_enable_clks(struct device *dev)
+{
+ struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (data->need_three_clks) {
+ ret = clk_prepare_enable(data->clk_ipg);
+ if (ret) {
+ dev_err(dev,
+ "Failed to prepare/enable ipg clk, err=%d\n",
+ ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(data->clk_ahb);
+ if (ret) {
+ dev_err(dev,
+ "Failed to prepare/enable ahb clk, err=%d\n",
+ ret);
+ clk_disable_unprepare(data->clk_ipg);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(data->clk_per);
+ if (ret) {
+ dev_err(dev,
+ "Failed to prepare/enable per clk, err=%d\n",
+ ret);
+ clk_disable_unprepare(data->clk_ahb);
+ clk_disable_unprepare(data->clk_ipg);
+ return ret;
+ }
+ } else {
+ ret = clk_prepare_enable(data->clk);
+ if (ret) {
+ dev_err(dev,
+ "Failed to prepare/enable clk, err=%d\n",
+ ret);
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static void imx_disable_unprepare_clks(struct device *dev)
+{
+ struct ci_hdrc_imx_data *data = dev_get_drvdata(dev);
+
+ if (data->need_three_clks) {
+ clk_disable_unprepare(data->clk_per);
+ clk_disable_unprepare(data->clk_ahb);
+ clk_disable_unprepare(data->clk_ipg);
+ } else {
+ clk_disable_unprepare(data->clk);
+ }
+}
static int ci_hdrc_imx_probe(struct platform_device *pdev)
{
@@ -126,34 +244,34 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
struct ci_hdrc_platform_data pdata = {
.name = dev_name(&pdev->dev),
.capoffset = DEF_CAPOFFSET,
- .flags = CI_HDRC_DISABLE_STREAMING,
+ .flags = CI_HDRC_SET_NON_ZERO_TTHA,
};
int ret;
- const struct of_device_id *of_id =
- of_match_device(ci_hdrc_imx_dt_ids, &pdev->dev);
- const struct ci_hdrc_imx_platform_flag *imx_platform_flag = of_id->data;
+ const struct of_device_id *of_id;
+ const struct ci_hdrc_imx_platform_flag *imx_platform_flag;
+
+ of_id = of_match_device(ci_hdrc_imx_dt_ids, &pdev->dev);
+ if (!of_id)
+ return -ENODEV;
+
+ imx_platform_flag = of_id->data;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ platform_set_drvdata(pdev, data);
data->usbmisc_data = usbmisc_get_init_data(&pdev->dev);
if (IS_ERR(data->usbmisc_data))
return PTR_ERR(data->usbmisc_data);
- data->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(data->clk)) {
- dev_err(&pdev->dev,
- "Failed to get clock, err=%ld\n", PTR_ERR(data->clk));
- return PTR_ERR(data->clk);
- }
+ ret = imx_get_clks(&pdev->dev);
+ if (ret)
+ return ret;
- ret = clk_prepare_enable(data->clk);
- if (ret) {
- dev_err(&pdev->dev,
- "Failed to prepare or enable clock, err=%d\n", ret);
+ ret = imx_prepare_enable_clks(&pdev->dev);
+ if (ret)
return ret;
- }
data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
if (IS_ERR(data->phy)) {
@@ -196,8 +314,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
goto disable_device;
}
- platform_set_drvdata(pdev, data);
-
if (data->supports_runtime_pm) {
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
@@ -210,7 +326,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
disable_device:
ci_hdrc_remove_device(data->ci_pdev);
err_clk:
- clk_disable_unprepare(data->clk);
+ imx_disable_unprepare_clks(&pdev->dev);
return ret;
}
@@ -224,7 +340,7 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
pm_runtime_put_noidle(&pdev->dev);
}
ci_hdrc_remove_device(data->ci_pdev);
- clk_disable_unprepare(data->clk);
+ imx_disable_unprepare_clks(&pdev->dev);
return 0;
}
@@ -236,7 +352,7 @@ static int imx_controller_suspend(struct device *dev)
dev_dbg(dev, "at %s\n", __func__);
- clk_disable_unprepare(data->clk);
+ imx_disable_unprepare_clks(dev);
data->in_lpm = true;
return 0;
@@ -254,7 +370,7 @@ static int imx_controller_resume(struct device *dev)
return 0;
}
- ret = clk_prepare_enable(data->clk);
+ ret = imx_prepare_enable_clks(dev);
if (ret)
return ret;
@@ -269,7 +385,7 @@ static int imx_controller_resume(struct device *dev)
return 0;
clk_disable:
- clk_disable_unprepare(data->clk);
+ imx_disable_unprepare_clks(dev);
return ret;
}
diff --git a/kernel/drivers/usb/chipidea/ci_hdrc_pci.c b/kernel/drivers/usb/chipidea/ci_hdrc_pci.c
index 773d15051..b59195edf 100644
--- a/kernel/drivers/usb/chipidea/ci_hdrc_pci.c
+++ b/kernel/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -142,16 +142,16 @@ static const struct pci_device_id ci_hdrc_pci_id_table[] = {
.driver_data = (kernel_ulong_t)&pci_platdata,
},
{
- PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0811),
+ PCI_VDEVICE(INTEL, 0x0811),
.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
},
{
- PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
+ PCI_VDEVICE(INTEL, 0x0829),
.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
},
{
/* Intel Clovertrail */
- PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe006),
+ PCI_VDEVICE(INTEL, 0xe006),
.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
},
{ 0 } /* end: all zeroes */
diff --git a/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c b/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
index 45844c951..4456d2cf8 100644
--- a/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
+++ b/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
@@ -12,6 +12,7 @@
#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/usb/chipidea.h>
@@ -25,20 +26,40 @@ struct ci_hdrc_usb2_priv {
struct clk *clk;
};
-static struct ci_hdrc_platform_data ci_default_pdata = {
+static const struct ci_hdrc_platform_data ci_default_pdata = {
.capoffset = DEF_CAPOFFSET,
.flags = CI_HDRC_DISABLE_STREAMING,
};
+static struct ci_hdrc_platform_data ci_zynq_pdata = {
+ .capoffset = DEF_CAPOFFSET,
+};
+
+static const struct of_device_id ci_hdrc_usb2_of_match[] = {
+ { .compatible = "chipidea,usb2"},
+ { .compatible = "xlnx,zynq-usb-2.20a", .data = &ci_zynq_pdata},
+ { }
+};
+MODULE_DEVICE_TABLE(of, ci_hdrc_usb2_of_match);
+
static int ci_hdrc_usb2_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ci_hdrc_usb2_priv *priv;
struct ci_hdrc_platform_data *ci_pdata = dev_get_platdata(dev);
int ret;
+ const struct of_device_id *match;
- if (!ci_pdata)
- ci_pdata = &ci_default_pdata;
+ if (!ci_pdata) {
+ ci_pdata = devm_kmalloc(dev, sizeof(*ci_pdata), GFP_KERNEL);
+ *ci_pdata = ci_default_pdata; /* struct copy */
+ }
+
+ match = of_match_device(ci_hdrc_usb2_of_match, &pdev->dev);
+ if (match && match->data) {
+ /* struct copy */
+ *ci_pdata = *(struct ci_hdrc_platform_data *)match->data;
+ }
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -94,12 +115,6 @@ static int ci_hdrc_usb2_remove(struct platform_device *pdev)
return 0;
}
-static const struct of_device_id ci_hdrc_usb2_of_match[] = {
- { .compatible = "chipidea,usb2" },
- { }
-};
-MODULE_DEVICE_TABLE(of, ci_hdrc_usb2_of_match);
-
static struct platform_driver ci_hdrc_usb2_driver = {
.probe = ci_hdrc_usb2_probe,
.remove = ci_hdrc_usb2_remove,
diff --git a/kernel/drivers/usb/chipidea/core.c b/kernel/drivers/usb/chipidea/core.c
index 3ad48e1c0..965d0e240 100644
--- a/kernel/drivers/usb/chipidea/core.c
+++ b/kernel/drivers/usb/chipidea/core.c
@@ -47,6 +47,7 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/extcon.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/module.h>
@@ -64,6 +65,7 @@
#include <linux/of.h>
#include <linux/phy.h>
#include <linux/regulator/consumer.h>
+#include <linux/usb/ehci_def.h>
#include "ci.h"
#include "udc.h"
@@ -84,6 +86,8 @@ static const u8 ci_regs_nolpm[] = {
[OP_USBINTR] = 0x08U,
[OP_DEVICEADDR] = 0x14U,
[OP_ENDPTLISTADDR] = 0x18U,
+ [OP_TTCTRL] = 0x1CU,
+ [OP_BURSTSIZE] = 0x20U,
[OP_PORTSC] = 0x44U,
[OP_DEVLC] = 0x84U,
[OP_OTGSC] = 0x64U,
@@ -106,6 +110,8 @@ static const u8 ci_regs_lpm[] = {
[OP_USBINTR] = 0x08U,
[OP_DEVICEADDR] = 0x14U,
[OP_ENDPTLISTADDR] = 0x18U,
+ [OP_TTCTRL] = 0x1CU,
+ [OP_BURSTSIZE] = 0x20U,
[OP_PORTSC] = 0x44U,
[OP_DEVLC] = 0x84U,
[OP_OTGSC] = 0xC4U,
@@ -118,7 +124,7 @@ static const u8 ci_regs_lpm[] = {
[OP_ENDPTCTRL] = 0xECU,
};
-static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
+static void hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
{
int i;
@@ -134,7 +140,6 @@ static int hw_alloc_regmap(struct ci_hdrc *ci, bool is_lpm)
? ci_regs_lpm[OP_ENDPTCTRL]
: ci_regs_nolpm[OP_ENDPTCTRL]);
- return 0;
}
static enum ci_revision ci_get_revision(struct ci_hdrc *ci)
@@ -403,6 +408,55 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
return ret;
}
+
+/**
+ * ci_platform_configure: do controller configure
+ * @ci: the controller
+ *
+ */
+void ci_platform_configure(struct ci_hdrc *ci)
+{
+ bool is_device_mode, is_host_mode;
+
+ is_device_mode = hw_read(ci, OP_USBMODE, USBMODE_CM) == USBMODE_CM_DC;
+ is_host_mode = hw_read(ci, OP_USBMODE, USBMODE_CM) == USBMODE_CM_HC;
+
+ if (is_device_mode &&
+ (ci->platdata->flags & CI_HDRC_DISABLE_DEVICE_STREAMING))
+ hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
+
+ if (is_host_mode &&
+ (ci->platdata->flags & CI_HDRC_DISABLE_HOST_STREAMING))
+ hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
+
+ if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED) {
+ if (ci->hw_bank.lpm)
+ hw_write(ci, OP_DEVLC, DEVLC_PFSC, DEVLC_PFSC);
+ else
+ hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
+ }
+
+ if (ci->platdata->flags & CI_HDRC_SET_NON_ZERO_TTHA)
+ hw_write(ci, OP_TTCTRL, TTCTRL_TTHA_MASK, TTCTRL_TTHA);
+
+ hw_write(ci, OP_USBCMD, 0xff0000, ci->platdata->itc_setting << 16);
+
+ if (ci->platdata->flags & CI_HDRC_OVERRIDE_AHB_BURST)
+ hw_write_id_reg(ci, ID_SBUSCFG, AHBBRST_MASK,
+ ci->platdata->ahb_burst_config);
+
+ /* override burst size, take effect only when ahb_burst_config is 0 */
+ if (!hw_read_id_reg(ci, ID_SBUSCFG, AHBBRST_MASK)) {
+ if (ci->platdata->flags & CI_HDRC_OVERRIDE_TX_BURST)
+ hw_write(ci, OP_BURSTSIZE, TX_BURST_MASK,
+ ci->platdata->tx_burst_size << __ffs(TX_BURST_MASK));
+
+ if (ci->platdata->flags & CI_HDRC_OVERRIDE_RX_BURST)
+ hw_write(ci, OP_BURSTSIZE, RX_BURST_MASK,
+ ci->platdata->rx_burst_size);
+ }
+}
+
/**
* hw_controller_reset: do controller reset
* @ci: the controller
@@ -447,16 +501,6 @@ int hw_device_reset(struct ci_hdrc *ci)
ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_RESET_EVENT);
- if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
- hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
-
- if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED) {
- if (ci->hw_bank.lpm)
- hw_write(ci, OP_DEVLC, DEVLC_PFSC, DEVLC_PFSC);
- else
- hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
- }
-
/* USBMODE should be configured step by step */
hw_write(ci, OP_USBMODE, USBMODE_CM, USBMODE_CM_IDLE);
hw_write(ci, OP_USBMODE, USBMODE_CM, USBMODE_CM_DC);
@@ -469,6 +513,8 @@ int hw_device_reset(struct ci_hdrc *ci)
return -ENODEV;
}
+ ci_platform_configure(ci);
+
return 0;
}
@@ -557,14 +603,52 @@ static irqreturn_t ci_irq(int irq, void *data)
return ret;
}
+static int ci_vbus_notifier(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct ci_hdrc_cable *vbus = container_of(nb, struct ci_hdrc_cable, nb);
+ struct ci_hdrc *ci = vbus->ci;
+
+ if (event)
+ vbus->state = true;
+ else
+ vbus->state = false;
+
+ vbus->changed = true;
+
+ ci_irq(ci->irq, ci);
+ return NOTIFY_DONE;
+}
+
+static int ci_id_notifier(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct ci_hdrc_cable *id = container_of(nb, struct ci_hdrc_cable, nb);
+ struct ci_hdrc *ci = id->ci;
+
+ if (event)
+ id->state = false;
+ else
+ id->state = true;
+
+ id->changed = true;
+
+ ci_irq(ci->irq, ci);
+ return NOTIFY_DONE;
+}
+
static int ci_get_platdata(struct device *dev,
struct ci_hdrc_platform_data *platdata)
{
+ struct extcon_dev *ext_vbus, *ext_id;
+ struct ci_hdrc_cable *cable;
+ int ret;
+
if (!platdata->phy_mode)
platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
if (!platdata->dr_mode)
- platdata->dr_mode = of_usb_get_dr_mode(dev->of_node);
+ platdata->dr_mode = usb_get_dr_mode(dev);
if (platdata->dr_mode == USB_DR_MODE_UNKNOWN)
platdata->dr_mode = USB_DR_MODE_OTG;
@@ -588,12 +672,155 @@ static int ci_get_platdata(struct device *dev,
of_usb_host_tpl_support(dev->of_node);
}
- if (of_usb_get_maximum_speed(dev->of_node) == USB_SPEED_FULL)
+ if (platdata->dr_mode == USB_DR_MODE_OTG) {
+ /* We can support HNP and SRP of OTG 2.0 */
+ platdata->ci_otg_caps.otg_rev = 0x0200;
+ platdata->ci_otg_caps.hnp_support = true;
+ platdata->ci_otg_caps.srp_support = true;
+
+ /* Update otg capabilities by DT properties */
+ ret = of_usb_update_otg_caps(dev->of_node,
+ &platdata->ci_otg_caps);
+ if (ret)
+ return ret;
+ }
+
+ if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
+ if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
+ of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+ &platdata->phy_clkgate_delay_us);
+
+ platdata->itc_setting = 1;
+ if (of_find_property(dev->of_node, "itc-setting", NULL)) {
+ ret = of_property_read_u32(dev->of_node, "itc-setting",
+ &platdata->itc_setting);
+ if (ret) {
+ dev_err(dev,
+ "failed to get itc-setting\n");
+ return ret;
+ }
+ }
+
+ if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
+ ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+ &platdata->ahb_burst_config);
+ if (ret) {
+ dev_err(dev,
+ "failed to get ahb-burst-config\n");
+ return ret;
+ }
+ platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+ }
+
+ if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
+ ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+ &platdata->tx_burst_size);
+ if (ret) {
+ dev_err(dev,
+ "failed to get tx-burst-size-dword\n");
+ return ret;
+ }
+ platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+ }
+
+ if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
+ ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+ &platdata->rx_burst_size);
+ if (ret) {
+ dev_err(dev,
+ "failed to get rx-burst-size-dword\n");
+ return ret;
+ }
+ platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+ }
+
+ ext_id = ERR_PTR(-ENODEV);
+ ext_vbus = ERR_PTR(-ENODEV);
+ if (of_property_read_bool(dev->of_node, "extcon")) {
+ /* Each one of them is not mandatory */
+ ext_vbus = extcon_get_edev_by_phandle(dev, 0);
+ if (IS_ERR(ext_vbus) && PTR_ERR(ext_vbus) != -ENODEV)
+ return PTR_ERR(ext_vbus);
+
+ ext_id = extcon_get_edev_by_phandle(dev, 1);
+ if (IS_ERR(ext_id) && PTR_ERR(ext_id) != -ENODEV)
+ return PTR_ERR(ext_id);
+ }
+
+ cable = &platdata->vbus_extcon;
+ cable->nb.notifier_call = ci_vbus_notifier;
+ cable->edev = ext_vbus;
+
+ if (!IS_ERR(ext_vbus)) {
+ ret = extcon_get_cable_state_(cable->edev, EXTCON_USB);
+ if (ret)
+ cable->state = true;
+ else
+ cable->state = false;
+ }
+
+ cable = &platdata->id_extcon;
+ cable->nb.notifier_call = ci_id_notifier;
+ cable->edev = ext_id;
+
+ if (!IS_ERR(ext_id)) {
+ ret = extcon_get_cable_state_(cable->edev, EXTCON_USB_HOST);
+ if (ret)
+ cable->state = false;
+ else
+ cable->state = true;
+ }
+ return 0;
+}
+
+static int ci_extcon_register(struct ci_hdrc *ci)
+{
+ struct ci_hdrc_cable *id, *vbus;
+ int ret;
+
+ id = &ci->platdata->id_extcon;
+ id->ci = ci;
+ if (!IS_ERR(id->edev)) {
+ ret = extcon_register_notifier(id->edev, EXTCON_USB_HOST,
+ &id->nb);
+ if (ret < 0) {
+ dev_err(ci->dev, "register ID failed\n");
+ return ret;
+ }
+ }
+
+ vbus = &ci->platdata->vbus_extcon;
+ vbus->ci = ci;
+ if (!IS_ERR(vbus->edev)) {
+ ret = extcon_register_notifier(vbus->edev, EXTCON_USB,
+ &vbus->nb);
+ if (ret < 0) {
+ extcon_unregister_notifier(id->edev, EXTCON_USB_HOST,
+ &id->nb);
+ dev_err(ci->dev, "register VBUS failed\n");
+ return ret;
+ }
+ }
+
return 0;
}
+static void ci_extcon_unregister(struct ci_hdrc *ci)
+{
+ struct ci_hdrc_cable *cable;
+
+ cable = &ci->platdata->id_extcon;
+ if (!IS_ERR(cable->edev))
+ extcon_unregister_notifier(cable->edev, EXTCON_USB_HOST,
+ &cable->nb);
+
+ cable = &ci->platdata->vbus_extcon;
+ if (!IS_ERR(cable->edev))
+ extcon_unregister_notifier(cable->edev, EXTCON_USB, &cable->nb);
+}
+
static DEFINE_IDA(ci_ida);
struct platform_device *ci_hdrc_add_device(struct device *dev,
@@ -817,6 +1044,10 @@ static int ci_hdrc_probe(struct platform_device *pdev)
if (ret)
goto stop;
+ ret = ci_extcon_register(ci);
+ if (ret)
+ goto stop;
+
if (ci->supports_runtime_pm) {
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
@@ -834,6 +1065,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
if (!ret)
return 0;
+ ci_extcon_unregister(ci);
stop:
ci_role_destroy(ci);
deinit_phy:
@@ -853,6 +1085,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
}
dbg_remove_files(ci);
+ ci_extcon_unregister(ci);
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
ci_usb_phy_exit(ci);
@@ -892,6 +1125,9 @@ static void ci_controller_suspend(struct ci_hdrc *ci)
{
disable_irq(ci->irq);
ci_hdrc_enter_lpm(ci, true);
+ if (ci->platdata->phy_clkgate_delay_us)
+ usleep_range(ci->platdata->phy_clkgate_delay_us,
+ ci->platdata->phy_clkgate_delay_us + 50);
usb_phy_set_suspend(ci->usb_phy, 1);
ci->in_lpm = true;
enable_irq(ci->irq);
diff --git a/kernel/drivers/usb/chipidea/debug.c b/kernel/drivers/usb/chipidea/debug.c
index 5b7061a33..58c8485a0 100644
--- a/kernel/drivers/usb/chipidea/debug.c
+++ b/kernel/drivers/usb/chipidea/debug.c
@@ -10,6 +10,7 @@
#include <linux/usb/phy.h>
#include <linux/usb/otg.h>
#include <linux/usb/otg-fsm.h>
+#include <linux/usb/chipidea.h>
#include "ci.h"
#include "udc.h"
@@ -66,9 +67,11 @@ static int ci_port_test_show(struct seq_file *s, void *data)
unsigned long flags;
unsigned mode;
+ pm_runtime_get_sync(ci->dev);
spin_lock_irqsave(&ci->lock, flags);
mode = hw_port_test_get(ci);
spin_unlock_irqrestore(&ci->lock, flags);
+ pm_runtime_put_sync(ci->dev);
seq_printf(s, "mode = %u\n", mode);
@@ -98,9 +101,11 @@ static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
if (sscanf(buf, "%u", &mode) != 1)
return -EINVAL;
+ pm_runtime_get_sync(ci->dev);
spin_lock_irqsave(&ci->lock, flags);
ret = hw_port_test_set(ci, mode);
spin_unlock_irqrestore(&ci->lock, flags);
+ pm_runtime_put_sync(ci->dev);
return ret ? ret : count;
}
@@ -316,8 +321,12 @@ static ssize_t ci_role_write(struct file *file, const char __user *ubuf,
if (role == CI_ROLE_END || role == ci->role)
return -EINVAL;
+ pm_runtime_get_sync(ci->dev);
+ disable_irq(ci->irq);
ci_role_stop(ci);
ret = ci_role_start(ci, role);
+ enable_irq(ci->irq);
+ pm_runtime_put_sync(ci->dev);
return ret ? ret : count;
}
diff --git a/kernel/drivers/usb/chipidea/host.c b/kernel/drivers/usb/chipidea/host.c
index 2f8af40e8..3d2430440 100644
--- a/kernel/drivers/usb/chipidea/host.c
+++ b/kernel/drivers/usb/chipidea/host.c
@@ -44,6 +44,7 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable)
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct ehci_ci_priv *priv = (struct ehci_ci_priv *)ehci->priv;
struct device *dev = hcd->self.controller;
+ struct ci_hdrc *ci = dev_get_drvdata(dev);
int ret = 0;
int port = HCS_N_PORTS(ehci->hcs_params);
@@ -64,12 +65,37 @@ static int ehci_ci_portpower(struct usb_hcd *hcd, int portnum, bool enable)
return ret;
}
}
+
+ if (enable && (ci->platdata->phy_mode == USBPHY_INTERFACE_MODE_HSIC)) {
+ /*
+ * Marvell 28nm HSIC PHY requires forcing the port to HS mode.
+ * As HSIC is always HS, this should be safe for others.
+ */
+ hw_port_test_set(ci, 5);
+ hw_port_test_set(ci, 0);
+ }
return 0;
};
+static int ehci_ci_reset(struct usb_hcd *hcd)
+{
+ struct device *dev = hcd->self.controller;
+ struct ci_hdrc *ci = dev_get_drvdata(dev);
+ int ret;
+
+ ret = ehci_setup(hcd);
+ if (ret)
+ return ret;
+
+ ci_platform_configure(ci);
+
+ return ret;
+}
+
static const struct ehci_driver_overrides ehci_ci_overrides = {
.extra_priv_size = sizeof(struct ehci_ci_priv),
.port_power = ehci_ci_portpower,
+ .reset = ehci_ci_reset,
};
static irqreturn_t host_irq(struct ci_hdrc *ci)
@@ -141,12 +167,6 @@ static int host_start(struct ci_hdrc *ci)
}
}
- if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
- hw_write(ci, OP_USBMODE, USBMODE_CI_SDIS, USBMODE_CI_SDIS);
-
- if (ci->platdata->flags & CI_HDRC_FORCE_FULLSPEED)
- hw_write(ci, OP_PORTSC, PORTSC_PFSC, PORTSC_PFSC);
-
return ret;
disable_reg:
diff --git a/kernel/drivers/usb/chipidea/otg.c b/kernel/drivers/usb/chipidea/otg.c
index ad6c87a46..03b674346 100644
--- a/kernel/drivers/usb/chipidea/otg.c
+++ b/kernel/drivers/usb/chipidea/otg.c
@@ -30,7 +30,44 @@
*/
u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask)
{
- return hw_read(ci, OP_OTGSC, mask);
+ struct ci_hdrc_cable *cable;
+ u32 val = hw_read(ci, OP_OTGSC, mask);
+
+ /*
+ * If using extcon framework for VBUS and/or ID signal
+ * detection overwrite OTGSC register value
+ */
+ cable = &ci->platdata->vbus_extcon;
+ if (!IS_ERR(cable->edev)) {
+ if (cable->changed)
+ val |= OTGSC_BSVIS;
+ else
+ val &= ~OTGSC_BSVIS;
+
+ cable->changed = false;
+
+ if (cable->state)
+ val |= OTGSC_BSV;
+ else
+ val &= ~OTGSC_BSV;
+ }
+
+ cable = &ci->platdata->id_extcon;
+ if (!IS_ERR(cable->edev)) {
+ if (cable->changed)
+ val |= OTGSC_IDIS;
+ else
+ val &= ~OTGSC_IDIS;
+
+ cable->changed = false;
+
+ if (cable->state)
+ val |= OTGSC_ID;
+ else
+ val &= ~OTGSC_ID;
+ }
+
+ return val;
}
/**
@@ -77,9 +114,12 @@ static void ci_handle_id_switch(struct ci_hdrc *ci)
ci_role(ci)->name, ci->roles[role]->name);
ci_role_stop(ci);
- /* wait vbus lower than OTGSC_BSV */
- hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
- CI_VBUS_STABLE_TIMEOUT_MS);
+
+ if (role == CI_ROLE_GADGET)
+ /* wait vbus lower than OTGSC_BSV */
+ hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
+ CI_VBUS_STABLE_TIMEOUT_MS);
+
ci_role_start(ci, role);
}
}
@@ -118,7 +158,7 @@ static void ci_otg_work(struct work_struct *work)
int ci_hdrc_otg_init(struct ci_hdrc *ci)
{
INIT_WORK(&ci->work, ci_otg_work);
- ci->wq = create_singlethread_workqueue("ci_otg");
+ ci->wq = create_freezable_workqueue("ci_otg");
if (!ci->wq) {
dev_err(ci->dev, "can't create workqueue\n");
return -ENODEV;
diff --git a/kernel/drivers/usb/chipidea/otg_fsm.c b/kernel/drivers/usb/chipidea/otg_fsm.c
index 19d655a74..00ab59d45 100644
--- a/kernel/drivers/usb/chipidea/otg_fsm.c
+++ b/kernel/drivers/usb/chipidea/otg_fsm.c
@@ -525,7 +525,6 @@ static int ci_otg_start_host(struct otg_fsm *fsm, int on)
ci_role_start(ci, CI_ROLE_HOST);
} else {
ci_role_stop(ci);
- hw_device_reset(ci);
ci_role_start(ci, CI_ROLE_GADGET);
}
return 0;
diff --git a/kernel/drivers/usb/chipidea/udc.c b/kernel/drivers/usb/chipidea/udc.c
index 764f668d4..391a1225b 100644
--- a/kernel/drivers/usb/chipidea/udc.c
+++ b/kernel/drivers/usb/chipidea/udc.c
@@ -445,7 +445,7 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
rest -= count;
}
- if (hwreq->req.zero && hwreq->req.length
+ if (hwreq->req.zero && hwreq->req.length && hwep->dir == TX
&& (hwreq->req.length % hwep->ep.maxpacket == 0))
add_td_to_list(hwep, hwreq, 0);
@@ -656,6 +656,44 @@ __acquires(hwep->lock)
return 0;
}
+static int _ep_set_halt(struct usb_ep *ep, int value, bool check_transfer)
+{
+ struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
+ int direction, retval = 0;
+ unsigned long flags;
+
+ if (ep == NULL || hwep->ep.desc == NULL)
+ return -EINVAL;
+
+ if (usb_endpoint_xfer_isoc(hwep->ep.desc))
+ return -EOPNOTSUPP;
+
+ spin_lock_irqsave(hwep->lock, flags);
+
+ if (value && hwep->dir == TX && check_transfer &&
+ !list_empty(&hwep->qh.queue) &&
+ !usb_endpoint_xfer_control(hwep->ep.desc)) {
+ spin_unlock_irqrestore(hwep->lock, flags);
+ return -EAGAIN;
+ }
+
+ direction = hwep->dir;
+ do {
+ retval |= hw_ep_set_halt(hwep->ci, hwep->num, hwep->dir, value);
+
+ if (!value)
+ hwep->wedge = 0;
+
+ if (hwep->type == USB_ENDPOINT_XFER_CONTROL)
+ hwep->dir = (hwep->dir == TX) ? RX : TX;
+
+ } while (hwep->dir != direction);
+
+ spin_unlock_irqrestore(hwep->lock, flags);
+ return retval;
+}
+
+
/**
* _gadget_stop_activity: stops all USB activity, flushes & disables all endpts
* @gadget: gadget
@@ -1051,7 +1089,7 @@ __acquires(ci->lock)
num += ci->hw_ep_max / 2;
spin_unlock(&ci->lock);
- err = usb_ep_set_halt(&ci->ci_hw_ep[num].ep);
+ err = _ep_set_halt(&ci->ci_hw_ep[num].ep, 1, false);
spin_lock(&ci->lock);
if (!err)
isr_setup_status_phase(ci);
@@ -1090,6 +1128,13 @@ __acquires(ci->lock)
if (ci_otg_is_fsm_mode(ci))
err = otg_a_alt_hnp_support(ci);
break;
+ case USB_DEVICE_A_HNP_SUPPORT:
+ if (ci_otg_is_fsm_mode(ci)) {
+ ci->gadget.a_hnp_support = 1;
+ err = isr_setup_status_phase(
+ ci);
+ }
+ break;
default:
goto delegate;
}
@@ -1110,8 +1155,8 @@ delegate:
if (err < 0) {
spin_unlock(&ci->lock);
- if (usb_ep_set_halt(&hwep->ep))
- dev_err(ci->dev, "error: ep_set_halt\n");
+ if (_ep_set_halt(&hwep->ep, 1, false))
+ dev_err(ci->dev, "error: _ep_set_halt\n");
spin_lock(&ci->lock);
}
}
@@ -1142,9 +1187,9 @@ __acquires(ci->lock)
err = isr_setup_status_phase(ci);
if (err < 0) {
spin_unlock(&ci->lock);
- if (usb_ep_set_halt(&hwep->ep))
+ if (_ep_set_halt(&hwep->ep, 1, false))
dev_err(ci->dev,
- "error: ep_set_halt\n");
+ "error: _ep_set_halt\n");
spin_lock(&ci->lock);
}
}
@@ -1390,41 +1435,7 @@ static int ep_dequeue(struct usb_ep *ep, struct usb_request *req)
*/
static int ep_set_halt(struct usb_ep *ep, int value)
{
- struct ci_hw_ep *hwep = container_of(ep, struct ci_hw_ep, ep);
- int direction, retval = 0;
- unsigned long flags;
-
- if (ep == NULL || hwep->ep.desc == NULL)
- return -EINVAL;
-
- if (usb_endpoint_xfer_isoc(hwep->ep.desc))
- return -EOPNOTSUPP;
-
- spin_lock_irqsave(hwep->lock, flags);
-
-#ifndef STALL_IN
- /* g_file_storage MS compliant but g_zero fails chapter 9 compliance */
- if (value && hwep->type == USB_ENDPOINT_XFER_BULK && hwep->dir == TX &&
- !list_empty(&hwep->qh.queue)) {
- spin_unlock_irqrestore(hwep->lock, flags);
- return -EAGAIN;
- }
-#endif
-
- direction = hwep->dir;
- do {
- retval |= hw_ep_set_halt(hwep->ci, hwep->num, hwep->dir, value);
-
- if (!value)
- hwep->wedge = 0;
-
- if (hwep->type == USB_ENDPOINT_XFER_CONTROL)
- hwep->dir = (hwep->dir == TX) ? RX : TX;
-
- } while (hwep->dir != direction);
-
- spin_unlock_irqrestore(hwep->lock, flags);
- return retval;
+ return _ep_set_halt(ep, value, true);
}
/**
@@ -1624,6 +1635,20 @@ static int init_eps(struct ci_hdrc *ci)
hwep->ep.name = hwep->name;
hwep->ep.ops = &usb_ep_ops;
+
+ if (i == 0) {
+ hwep->ep.caps.type_control = true;
+ } else {
+ hwep->ep.caps.type_iso = true;
+ hwep->ep.caps.type_bulk = true;
+ hwep->ep.caps.type_int = true;
+ }
+
+ if (j == TX)
+ hwep->ep.caps.dir_in = true;
+ else
+ hwep->ep.caps.dir_out = true;
+
/*
* for ep0: maxP defined in desc, for other
* eps, maxP is set by epautoconfig() called
@@ -1726,6 +1751,22 @@ static int ci_udc_start(struct usb_gadget *gadget,
return retval;
}
+static void ci_udc_stop_for_otg_fsm(struct ci_hdrc *ci)
+{
+ if (!ci_otg_is_fsm_mode(ci))
+ return;
+
+ mutex_lock(&ci->fsm.lock);
+ if (ci->fsm.otg->state == OTG_STATE_A_PERIPHERAL) {
+ ci->fsm.a_bidl_adis_tmout = 1;
+ ci_hdrc_otg_fsm_start(ci);
+ } else if (ci->fsm.otg->state == OTG_STATE_B_PERIPHERAL) {
+ ci->fsm.protocol = PROTO_UNDEF;
+ ci->fsm.otg->state = OTG_STATE_UNDEFINED;
+ }
+ mutex_unlock(&ci->fsm.lock);
+}
+
/**
* ci_udc_stop: unregister a gadget driver
*/
@@ -1750,6 +1791,7 @@ static int ci_udc_stop(struct usb_gadget *gadget)
ci->driver = NULL;
spin_unlock_irqrestore(&ci->lock, flags);
+ ci_udc_stop_for_otg_fsm(ci);
return 0;
}
@@ -1827,6 +1869,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci)
static int udc_start(struct ci_hdrc *ci)
{
struct device *dev = ci->dev;
+ struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps;
int retval = 0;
spin_lock_init(&ci->lock);
@@ -1834,8 +1877,12 @@ static int udc_start(struct ci_hdrc *ci)
ci->gadget.ops = &usb_gadget_ops;
ci->gadget.speed = USB_SPEED_UNKNOWN;
ci->gadget.max_speed = USB_SPEED_HIGH;
- ci->gadget.is_otg = ci->is_otg ? 1 : 0;
ci->gadget.name = ci->platdata->name;
+ ci->gadget.otg_caps = otg_caps;
+
+ if (ci->is_otg && (otg_caps->hnp_support || otg_caps->srp_support ||
+ otg_caps->adp_support))
+ ci->gadget.is_otg = 1;
INIT_LIST_HEAD(&ci->gadget.ep_list);
diff --git a/kernel/drivers/usb/chipidea/usbmisc_imx.c b/kernel/drivers/usb/chipidea/usbmisc_imx.c
index 140945cb1..ab8b027e8 100644
--- a/kernel/drivers/usb/chipidea/usbmisc_imx.c
+++ b/kernel/drivers/usb/chipidea/usbmisc_imx.c
@@ -54,6 +54,7 @@
#define MX53_USB_PHYCTRL1_PLLDIV_MASK 0x3
#define MX53_USB_PLL_DIV_24_MHZ 0x01
+#define MX6_BM_NON_BURST_SETTING BIT(1)
#define MX6_BM_OVER_CUR_DIS BIT(7)
#define MX6_BM_WAKEUP_ENABLE BIT(10)
#define MX6_BM_ID_WAKEUP BIT(16)
@@ -71,6 +72,14 @@
#define VF610_OVER_CUR_DIS BIT(7)
+#define MX7D_USBNC_USB_CTRL2 0x4
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_MASK 0x3
+#define MX7D_USB_VBUS_WAKEUP_SOURCE(v) (v << 0)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_VBUS MX7D_USB_VBUS_WAKEUP_SOURCE(0)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_AVALID MX7D_USB_VBUS_WAKEUP_SOURCE(1)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2)
+#define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3)
+
struct usbmisc_ops {
/* It's called once when probe a usb device */
int (*init)(struct imx_usbmisc_data *data);
@@ -160,7 +169,7 @@ static int usbmisc_imx27_init(struct imx_usbmisc_data *data)
break;
default:
return -EINVAL;
- };
+ }
spin_lock_irqsave(&usbmisc->lock, flags);
if (data->disable_oc)
@@ -255,14 +264,21 @@ static int usbmisc_imx6q_init(struct imx_usbmisc_data *data)
if (data->index > 3)
return -EINVAL;
+ spin_lock_irqsave(&usbmisc->lock, flags);
+
if (data->disable_oc) {
- spin_lock_irqsave(&usbmisc->lock, flags);
reg = readl(usbmisc->base + data->index * 4);
writel(reg | MX6_BM_OVER_CUR_DIS,
usbmisc->base + data->index * 4);
- spin_unlock_irqrestore(&usbmisc->lock, flags);
}
+ /* SoC non-burst setting */
+ reg = readl(usbmisc->base + data->index * 4);
+ writel(reg | MX6_BM_NON_BURST_SETTING,
+ usbmisc->base + data->index * 4);
+
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
usbmisc_imx6q_set_wakeup(data, false);
return 0;
@@ -316,6 +332,55 @@ static int usbmisc_vf610_init(struct imx_usbmisc_data *data)
return 0;
}
+static int usbmisc_imx7d_set_wakeup
+ (struct imx_usbmisc_data *data, bool enabled)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 val;
+ u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE |
+ MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP);
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ val = readl(usbmisc->base);
+ if (enabled) {
+ writel(val | wakeup_setting, usbmisc->base);
+ } else {
+ if (val & MX6_BM_WAKEUP_INTR)
+ dev_dbg(data->dev, "wakeup int\n");
+ writel(val & ~wakeup_setting, usbmisc->base);
+ }
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+ return 0;
+}
+
+static int usbmisc_imx7d_init(struct imx_usbmisc_data *data)
+{
+ struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev);
+ unsigned long flags;
+ u32 reg;
+
+ if (data->index >= 1)
+ return -EINVAL;
+
+ spin_lock_irqsave(&usbmisc->lock, flags);
+ if (data->disable_oc) {
+ reg = readl(usbmisc->base);
+ writel(reg | MX6_BM_OVER_CUR_DIS, usbmisc->base);
+ }
+
+ reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2);
+ reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK;
+ writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID,
+ usbmisc->base + MX7D_USBNC_USB_CTRL2);
+ spin_unlock_irqrestore(&usbmisc->lock, flags);
+
+ usbmisc_imx7d_set_wakeup(data, false);
+
+ return 0;
+}
+
static const struct usbmisc_ops imx25_usbmisc_ops = {
.init = usbmisc_imx25_init,
.post = usbmisc_imx25_post,
@@ -343,6 +408,11 @@ static const struct usbmisc_ops imx6sx_usbmisc_ops = {
.init = usbmisc_imx6sx_init,
};
+static const struct usbmisc_ops imx7d_usbmisc_ops = {
+ .init = usbmisc_imx7d_init,
+ .set_wakeup = usbmisc_imx7d_set_wakeup,
+};
+
int imx_usbmisc_init(struct imx_usbmisc_data *data)
{
struct imx_usbmisc *usbmisc;
@@ -418,6 +488,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = {
.compatible = "fsl,imx6sx-usbmisc",
.data = &imx6sx_usbmisc_ops,
},
+ {
+ .compatible = "fsl,imx6ul-usbmisc",
+ .data = &imx6sx_usbmisc_ops,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids);
@@ -426,7 +500,11 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
{
struct resource *res;
struct imx_usbmisc *data;
- struct of_device_id *tmp_dev;
+ const struct of_device_id *of_id;
+
+ of_id = of_match_device(usbmisc_imx_dt_ids, &pdev->dev);
+ if (!of_id)
+ return -ENODEV;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
@@ -439,9 +517,7 @@ static int usbmisc_imx_probe(struct platform_device *pdev)
if (IS_ERR(data->base))
return PTR_ERR(data->base);
- tmp_dev = (struct of_device_id *)
- of_match_device(usbmisc_imx_dt_ids, &pdev->dev);
- data->ops = (const struct usbmisc_ops *)tmp_dev->data;
+ data->ops = (const struct usbmisc_ops *)of_id->data;
platform_set_drvdata(pdev, data);
return 0;
diff --git a/kernel/drivers/usb/class/cdc-acm.c b/kernel/drivers/usb/class/cdc-acm.c
index a086e1d69..fa4e23930 100644
--- a/kernel/drivers/usb/class/cdc-acm.c
+++ b/kernel/drivers/usb/class/cdc-acm.c
@@ -46,6 +46,7 @@
#include <linux/usb/cdc.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
+#include <linux/idr.h>
#include <linux/list.h>
#include "cdc-acm.h"
@@ -56,27 +57,27 @@
static struct usb_driver acm_driver;
static struct tty_driver *acm_tty_driver;
-static struct acm *acm_table[ACM_TTY_MINORS];
-static DEFINE_MUTEX(acm_table_lock);
+static DEFINE_IDR(acm_minors);
+static DEFINE_MUTEX(acm_minors_lock);
static void acm_tty_set_termios(struct tty_struct *tty,
struct ktermios *termios_old);
/*
- * acm_table accessors
+ * acm_minors accessors
*/
/*
- * Look up an ACM structure by index. If found and not disconnected, increment
+ * Look up an ACM structure by minor. If found and not disconnected, increment
* its refcount and return it with its mutex held.
*/
-static struct acm *acm_get_by_index(unsigned index)
+static struct acm *acm_get_by_minor(unsigned int minor)
{
struct acm *acm;
- mutex_lock(&acm_table_lock);
- acm = acm_table[index];
+ mutex_lock(&acm_minors_lock);
+ acm = idr_find(&acm_minors, minor);
if (acm) {
mutex_lock(&acm->mutex);
if (acm->disconnected) {
@@ -87,7 +88,7 @@ static struct acm *acm_get_by_index(unsigned index)
mutex_unlock(&acm->mutex);
}
}
- mutex_unlock(&acm_table_lock);
+ mutex_unlock(&acm_minors_lock);
return acm;
}
@@ -98,14 +99,9 @@ static int acm_alloc_minor(struct acm *acm)
{
int minor;
- mutex_lock(&acm_table_lock);
- for (minor = 0; minor < ACM_TTY_MINORS; minor++) {
- if (!acm_table[minor]) {
- acm_table[minor] = acm;
- break;
- }
- }
- mutex_unlock(&acm_table_lock);
+ mutex_lock(&acm_minors_lock);
+ minor = idr_alloc(&acm_minors, acm, 0, ACM_TTY_MINORS, GFP_KERNEL);
+ mutex_unlock(&acm_minors_lock);
return minor;
}
@@ -113,9 +109,9 @@ static int acm_alloc_minor(struct acm *acm)
/* Release the minor number associated with 'acm'. */
static void acm_release_minor(struct acm *acm)
{
- mutex_lock(&acm_table_lock);
- acm_table[acm->minor] = NULL;
- mutex_unlock(&acm_table_lock);
+ mutex_lock(&acm_minors_lock);
+ idr_remove(&acm_minors, acm->minor);
+ mutex_unlock(&acm_minors_lock);
}
/*
@@ -432,7 +428,8 @@ static void acm_read_bulk_callback(struct urb *urb)
set_bit(rb->index, &acm->read_urbs_free);
dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
__func__, status);
- return;
+ if ((status != -ENOENT) || (urb->actual_length == 0))
+ return;
}
usb_mark_last_busy(acm->dev);
@@ -497,7 +494,7 @@ static int acm_tty_install(struct tty_driver *driver, struct tty_struct *tty)
dev_dbg(tty->dev, "%s\n", __func__);
- acm = acm_get_by_index(tty->index);
+ acm = acm_get_by_minor(tty->index);
if (!acm)
return -ENODEV;
@@ -1267,12 +1264,9 @@ skip_normal_probe:
!= CDC_DATA_INTERFACE_TYPE) {
if (control_interface->cur_altsetting->desc.bInterfaceClass
== CDC_DATA_INTERFACE_TYPE) {
- struct usb_interface *t;
dev_dbg(&intf->dev,
"Your device has switched interfaces.\n");
- t = control_interface;
- control_interface = data_interface;
- data_interface = t;
+ swap(control_interface, data_interface);
} else {
return -EINVAL;
}
@@ -1301,12 +1295,9 @@ skip_normal_probe:
/* workaround for switched endpoints */
if (!usb_endpoint_dir_in(epread)) {
/* descriptors are swapped */
- struct usb_endpoint_descriptor *t;
dev_dbg(&intf->dev,
"The data interface has switched endpoints\n");
- t = epread;
- epread = epwrite;
- epwrite = t;
+ swap(epread, epwrite);
}
made_compressed_probe:
dev_dbg(&intf->dev, "interfaces are valid\n");
@@ -1316,7 +1307,7 @@ made_compressed_probe:
goto alloc_fail;
minor = acm_alloc_minor(acm);
- if (minor == ACM_TTY_MINORS) {
+ if (minor < 0) {
dev_err(&intf->dev, "no more free acm devices\n");
kfree(acm);
return -ENODEV;
@@ -1414,6 +1405,8 @@ made_compressed_probe:
usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
NULL, acm->writesize, acm_write_bulk, snd);
snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ if (quirks & SEND_ZERO_PACKET)
+ snd->urb->transfer_flags |= URB_ZERO_PACKET;
snd->instance = acm;
}
@@ -1848,6 +1841,16 @@ static const struct usb_device_id acm_ids[] = {
},
#endif
+ /*Samsung phone in firmware update mode */
+ { USB_DEVICE(0x04e8, 0x685d),
+ .driver_info = IGNORE_DEVICE,
+ },
+
+ /* Exclude Infineon Flash Loader utility */
+ { USB_DEVICE(0x058b, 0x0041),
+ .driver_info = IGNORE_DEVICE,
+ },
+
/* control interfaces without any protocol set */
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTO_NONE) },
@@ -1866,6 +1869,10 @@ static const struct usb_device_id acm_ids[] = {
{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
USB_CDC_ACM_PROTO_AT_CDMA) },
+ { USB_DEVICE(0x1519, 0x0452), /* Intel 7260 modem */
+ .driver_info = SEND_ZERO_PACKET,
+ },
+
{ }
};
@@ -1954,6 +1961,7 @@ static void __exit acm_exit(void)
usb_deregister(&acm_driver);
tty_unregister_driver(acm_tty_driver);
put_tty_driver(acm_tty_driver);
+ idr_destroy(&acm_minors);
}
module_init(acm_init);
diff --git a/kernel/drivers/usb/class/cdc-acm.h b/kernel/drivers/usb/class/cdc-acm.h
index b3b6c9db6..ccfaba9ab 100644
--- a/kernel/drivers/usb/class/cdc-acm.h
+++ b/kernel/drivers/usb/class/cdc-acm.h
@@ -19,7 +19,7 @@
*/
#define ACM_TTY_MAJOR 166
-#define ACM_TTY_MINORS 32
+#define ACM_TTY_MINORS 256
/*
* Requests.
@@ -134,3 +134,4 @@ struct acm {
#define IGNORE_DEVICE BIT(5)
#define QUIRK_CONTROL_LINE_STATE BIT(6)
#define CLEAR_HALT_CONDITIONS BIT(7)
+#define SEND_ZERO_PACKET BIT(8)
diff --git a/kernel/drivers/usb/class/usblp.c b/kernel/drivers/usb/class/usblp.c
index 0924ee40a..071964c78 100644
--- a/kernel/drivers/usb/class/usblp.c
+++ b/kernel/drivers/usb/class/usblp.c
@@ -57,6 +57,7 @@
#include <linux/mutex.h>
#undef DEBUG
#include <linux/usb.h>
+#include <linux/usb/ch9.h>
#include <linux/ratelimit.h>
/*
@@ -79,12 +80,20 @@
#define IOCNR_SOFT_RESET 7
/* Get device_id string: */
#define LPIOC_GET_DEVICE_ID(len) _IOC(_IOC_READ, 'P', IOCNR_GET_DEVICE_ID, len)
-/* The following ioctls were added for http://hpoj.sourceforge.net: */
-/* Get two-int array:
- * [0]=current protocol (1=7/1/1, 2=7/1/2, 3=7/1/3),
- * [1]=supported protocol mask (mask&(1<<n)!=0 means 7/1/n supported): */
+/* The following ioctls were added for http://hpoj.sourceforge.net:
+ * Get two-int array:
+ * [0]=current protocol
+ * (1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3),
+ * [1]=supported protocol mask (mask&(1<<n)!=0 means
+ * USB_CLASS_PRINTER/1/n supported):
+ */
#define LPIOC_GET_PROTOCOLS(len) _IOC(_IOC_READ, 'P', IOCNR_GET_PROTOCOLS, len)
-/* Set protocol (arg: 1=7/1/1, 2=7/1/2, 3=7/1/3): */
+/*
+ * Set protocol
+ * (arg: 1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3):
+ */
#define LPIOC_SET_PROTOCOL _IOC(_IOC_WRITE, 'P', IOCNR_SET_PROTOCOL, 0)
/* Set channel number (HP Vendor-specific command): */
#define LPIOC_HP_SET_CHANNEL _IOC(_IOC_WRITE, 'P', IOCNR_HP_SET_CHANNEL, 0)
@@ -146,8 +155,10 @@ struct usblp {
int readcount; /* Counter for reads */
int ifnum; /* Interface number */
struct usb_interface *intf; /* The interface */
- /* Alternate-setting numbers and endpoints for each protocol
- * (7/1/{index=1,2,3}) that the device supports: */
+ /*
+ * Alternate-setting numbers and endpoints for each protocol
+ * (USB_CLASS_PRINTER/1/{index=1,2,3}) that the device supports:
+ */
struct {
int alt_setting;
struct usb_endpoint_descriptor *epwrite;
@@ -660,7 +671,8 @@ static long usblp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
switch (cmd) {
case LPGETSTATUS:
- if ((retval = usblp_read_status(usblp, usblp->statusbuf))) {
+ retval = usblp_read_status(usblp, usblp->statusbuf);
+ if (retval) {
printk_ratelimited(KERN_ERR "usblp%d:"
"failed reading printer status (%d)\n",
usblp->minor, retval);
@@ -693,9 +705,11 @@ static struct urb *usblp_new_writeurb(struct usblp *usblp, int transfer_length)
struct urb *urb;
char *writebuf;
- if ((writebuf = kmalloc(transfer_length, GFP_KERNEL)) == NULL)
+ writebuf = kmalloc(transfer_length, GFP_KERNEL);
+ if (writebuf == NULL)
return NULL;
- if ((urb = usb_alloc_urb(0, GFP_KERNEL)) == NULL) {
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL) {
kfree(writebuf);
return NULL;
}
@@ -732,7 +746,8 @@ static ssize_t usblp_write(struct file *file, const char __user *buffer, size_t
transfer_length = USBLP_BUF_SIZE;
rv = -ENOMEM;
- if ((writeurb = usblp_new_writeurb(usblp, transfer_length)) == NULL)
+ writeurb = usblp_new_writeurb(usblp, transfer_length);
+ if (writeurb == NULL)
goto raise_urb;
usb_anchor_urb(writeurb, &usblp->urbs);
@@ -869,11 +884,11 @@ static int usblp_wwait(struct usblp *usblp, int nonblock)
add_wait_queue(&usblp->wwait, &waita);
for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
if (mutex_lock_interruptible(&usblp->mut)) {
rc = -EINTR;
break;
}
+ set_current_state(TASK_INTERRUPTIBLE);
rc = usblp_wtest(usblp, nonblock);
mutex_unlock(&usblp->mut);
if (rc <= 0)
@@ -980,7 +995,8 @@ static int usblp_submit_read(struct usblp *usblp)
int rc;
rc = -ENOMEM;
- if ((urb = usb_alloc_urb(0, GFP_KERNEL)) == NULL)
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL)
goto raise_urb;
usb_fill_bulk_urb(urb, usblp->dev,
@@ -1201,19 +1217,23 @@ abort_ret:
* but our requirements are too intricate for simple match to handle.
*
* The "proto_bias" option may be used to specify the preferred protocol
- * for all USB printers (1=7/1/1, 2=7/1/2, 3=7/1/3). If the device
- * supports the preferred protocol, then we bind to it.
+ * for all USB printers (1=USB_CLASS_PRINTER/1/1, 2=USB_CLASS_PRINTER/1/2,
+ * 3=USB_CLASS_PRINTER/1/3). If the device supports the preferred protocol,
+ * then we bind to it.
*
- * The best interface for us is 7/1/2, because it is compatible
- * with a stream of characters. If we find it, we bind to it.
+ * The best interface for us is USB_CLASS_PRINTER/1/2, because it
+ * is compatible with a stream of characters. If we find it, we bind to it.
*
* Note that the people from hpoj.sourceforge.net need to be able to
- * bind to 7/1/3 (MLC/1284.4), so we provide them ioctls for this purpose.
+ * bind to USB_CLASS_PRINTER/1/3 (MLC/1284.4), so we provide them ioctls
+ * for this purpose.
*
- * Failing 7/1/2, we look for 7/1/3, even though it's probably not
- * stream-compatible, because this matches the behaviour of the old code.
+ * Failing USB_CLASS_PRINTER/1/2, we look for USB_CLASS_PRINTER/1/3,
+ * even though it's probably not stream-compatible, because this matches
+ * the behaviour of the old code.
*
- * If nothing else, we bind to 7/1/1 - the unidirectional interface.
+ * If nothing else, we bind to USB_CLASS_PRINTER/1/1
+ * - the unidirectional interface.
*/
static int usblp_select_alts(struct usblp *usblp)
{
@@ -1231,7 +1251,8 @@ static int usblp_select_alts(struct usblp *usblp)
for (i = 0; i < if_alt->num_altsetting; i++) {
ifd = &if_alt->altsetting[i];
- if (ifd->desc.bInterfaceClass != 7 || ifd->desc.bInterfaceSubClass != 1)
+ if (ifd->desc.bInterfaceClass != USB_CLASS_PRINTER ||
+ ifd->desc.bInterfaceSubClass != 1)
if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS))
continue;
@@ -1257,8 +1278,10 @@ static int usblp_select_alts(struct usblp *usblp)
if (!epwrite || (ifd->desc.bInterfaceProtocol > 1 && !epread))
continue;
- /* Turn off reads for 7/1/1 (unidirectional) interfaces
- * and buggy bidirectional printers. */
+ /*
+ * Turn off reads for USB_CLASS_PRINTER/1/1 (unidirectional)
+ * interfaces and buggy bidirectional printers.
+ */
if (ifd->desc.bInterfaceProtocol == 1) {
epread = NULL;
} else if (usblp->quirks & USBLP_QUIRK_BIDIR) {
@@ -1401,12 +1424,12 @@ static int usblp_resume(struct usb_interface *intf)
}
static const struct usb_device_id usblp_ids[] = {
- { USB_DEVICE_INFO(7, 1, 1) },
- { USB_DEVICE_INFO(7, 1, 2) },
- { USB_DEVICE_INFO(7, 1, 3) },
- { USB_INTERFACE_INFO(7, 1, 1) },
- { USB_INTERFACE_INFO(7, 1, 2) },
- { USB_INTERFACE_INFO(7, 1, 3) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 1) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 2) },
+ { USB_DEVICE_INFO(USB_CLASS_PRINTER, 1, 3) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 1) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 2) },
+ { USB_INTERFACE_INFO(USB_CLASS_PRINTER, 1, 3) },
{ USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */
{ } /* Terminating entry */
};
diff --git a/kernel/drivers/usb/class/usbtmc.c b/kernel/drivers/usb/class/usbtmc.c
index 960bc0891..7a11a8263 100644
--- a/kernel/drivers/usb/class/usbtmc.c
+++ b/kernel/drivers/usb/class/usbtmc.c
@@ -109,6 +109,7 @@ struct usbtmc_ID_rigol_quirk {
static const struct usbtmc_ID_rigol_quirk usbtmc_id_quirk[] = {
{ 0x1ab1, 0x0588 },
+ { 0x1ab1, 0x04b0 },
{ 0, 0 }
};
diff --git a/kernel/drivers/usb/common/Makefile b/kernel/drivers/usb/common/Makefile
index ca2f8bd0e..6bbb3ec17 100644
--- a/kernel/drivers/usb/common/Makefile
+++ b/kernel/drivers/usb/common/Makefile
@@ -7,3 +7,4 @@ usb-common-y += common.o
usb-common-$(CONFIG_USB_LED_TRIG) += led.o
obj-$(CONFIG_USB_OTG_FSM) += usb-otg-fsm.o
+obj-$(CONFIG_USB_ULPI_BUS) += ulpi.o
diff --git a/kernel/drivers/usb/common/common.c b/kernel/drivers/usb/common/common.c
index b530fd403..673d53038 100644
--- a/kernel/drivers/usb/common/common.c
+++ b/kernel/drivers/usb/common/common.c
@@ -60,6 +60,24 @@ const char *usb_speed_string(enum usb_device_speed speed)
}
EXPORT_SYMBOL_GPL(usb_speed_string);
+enum usb_device_speed usb_get_maximum_speed(struct device *dev)
+{
+ const char *maximum_speed;
+ int err;
+ int i;
+
+ err = device_property_read_string(dev, "maximum-speed", &maximum_speed);
+ if (err < 0)
+ return USB_SPEED_UNKNOWN;
+
+ for (i = 0; i < ARRAY_SIZE(speed_names); i++)
+ if (strcmp(maximum_speed, speed_names[i]) == 0)
+ return i;
+
+ return USB_SPEED_UNKNOWN;
+}
+EXPORT_SYMBOL_GPL(usb_get_maximum_speed);
+
const char *usb_state_string(enum usb_device_state state)
{
static const char *const names[] = {
@@ -81,7 +99,6 @@ const char *usb_state_string(enum usb_device_state state)
}
EXPORT_SYMBOL_GPL(usb_state_string);
-#ifdef CONFIG_OF
static const char *const usb_dr_modes[] = {
[USB_DR_MODE_UNKNOWN] = "",
[USB_DR_MODE_HOST] = "host",
@@ -89,19 +106,12 @@ static const char *const usb_dr_modes[] = {
[USB_DR_MODE_OTG] = "otg",
};
-/**
- * of_usb_get_dr_mode - Get dual role mode for given device_node
- * @np: Pointer to the given device_node
- *
- * The function gets phy interface string from property 'dr_mode',
- * and returns the correspondig enum usb_dr_mode
- */
-enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+enum usb_dr_mode usb_get_dr_mode(struct device *dev)
{
const char *dr_mode;
int err, i;
- err = of_property_read_string(np, "dr_mode", &dr_mode);
+ err = device_property_read_string(dev, "dr_mode", &dr_mode);
if (err < 0)
return USB_DR_MODE_UNKNOWN;
@@ -111,34 +121,9 @@ enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
return USB_DR_MODE_UNKNOWN;
}
-EXPORT_SYMBOL_GPL(of_usb_get_dr_mode);
-
-/**
- * of_usb_get_maximum_speed - Get maximum requested speed for a given USB
- * controller.
- * @np: Pointer to the given device_node
- *
- * The function gets the maximum speed string from property "maximum-speed",
- * and returns the corresponding enum usb_device_speed.
- */
-enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np)
-{
- const char *maximum_speed;
- int err;
- int i;
-
- err = of_property_read_string(np, "maximum-speed", &maximum_speed);
- if (err < 0)
- return USB_SPEED_UNKNOWN;
-
- for (i = 0; i < ARRAY_SIZE(speed_names); i++)
- if (strcmp(maximum_speed, speed_names[i]) == 0)
- return i;
-
- return USB_SPEED_UNKNOWN;
-}
-EXPORT_SYMBOL_GPL(of_usb_get_maximum_speed);
+EXPORT_SYMBOL_GPL(usb_get_dr_mode);
+#ifdef CONFIG_OF
/**
* of_usb_host_tpl_support - to get if Targeted Peripheral List is supported
* for given targeted hosts (non-PC hosts)
@@ -154,6 +139,62 @@ bool of_usb_host_tpl_support(struct device_node *np)
return false;
}
EXPORT_SYMBOL_GPL(of_usb_host_tpl_support);
+
+/**
+ * of_usb_update_otg_caps - to update usb otg capabilities according to
+ * the passed properties in DT.
+ * @np: Pointer to the given device_node
+ * @otg_caps: Pointer to the target usb_otg_caps to be set
+ *
+ * The function updates the otg capabilities
+ */
+int of_usb_update_otg_caps(struct device_node *np,
+ struct usb_otg_caps *otg_caps)
+{
+ u32 otg_rev;
+
+ if (!otg_caps)
+ return -EINVAL;
+
+ if (!of_property_read_u32(np, "otg-rev", &otg_rev)) {
+ switch (otg_rev) {
+ case 0x0100:
+ case 0x0120:
+ case 0x0130:
+ case 0x0200:
+ /* Choose the lesser one if it's already been set */
+ if (otg_caps->otg_rev)
+ otg_caps->otg_rev = min_t(u16, otg_rev,
+ otg_caps->otg_rev);
+ else
+ otg_caps->otg_rev = otg_rev;
+ break;
+ default:
+ pr_err("%s: unsupported otg-rev: 0x%x\n",
+ np->full_name, otg_rev);
+ return -EINVAL;
+ }
+ } else {
+ /*
+ * otg-rev is mandatory for otg properties, if not passed
+ * we set it to be 0 and assume it's a legacy otg device.
+ * Non-dt platform can set it afterwards.
+ */
+ otg_caps->otg_rev = 0;
+ }
+
+ if (of_find_property(np, "hnp-disable", NULL))
+ otg_caps->hnp_support = false;
+ if (of_find_property(np, "srp-disable", NULL))
+ otg_caps->srp_support = false;
+ if (of_find_property(np, "adp-disable", NULL) ||
+ (otg_caps->otg_rev < 0x0200))
+ otg_caps->adp_support = false;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(of_usb_update_otg_caps);
+
#endif
MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/usb/common/ulpi.c b/kernel/drivers/usb/common/ulpi.c
new file mode 100644
index 000000000..01c0c0477
--- /dev/null
+++ b/kernel/drivers/usb/common/ulpi.c
@@ -0,0 +1,255 @@
+/**
+ * ulpi.c - USB ULPI PHY bus
+ *
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ulpi/interface.h>
+#include <linux/ulpi/driver.h>
+#include <linux/ulpi/regs.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+
+/* -------------------------------------------------------------------------- */
+
+int ulpi_read(struct ulpi *ulpi, u8 addr)
+{
+ return ulpi->ops->read(ulpi->ops, addr);
+}
+EXPORT_SYMBOL_GPL(ulpi_read);
+
+int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val)
+{
+ return ulpi->ops->write(ulpi->ops, addr, val);
+}
+EXPORT_SYMBOL_GPL(ulpi_write);
+
+/* -------------------------------------------------------------------------- */
+
+static int ulpi_match(struct device *dev, struct device_driver *driver)
+{
+ struct ulpi_driver *drv = to_ulpi_driver(driver);
+ struct ulpi *ulpi = to_ulpi_dev(dev);
+ const struct ulpi_device_id *id;
+
+ for (id = drv->id_table; id->vendor; id++)
+ if (id->vendor == ulpi->id.vendor &&
+ id->product == ulpi->id.product)
+ return 1;
+
+ return 0;
+}
+
+static int ulpi_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct ulpi *ulpi = to_ulpi_dev(dev);
+
+ if (add_uevent_var(env, "MODALIAS=ulpi:v%04xp%04x",
+ ulpi->id.vendor, ulpi->id.product))
+ return -ENOMEM;
+ return 0;
+}
+
+static int ulpi_probe(struct device *dev)
+{
+ struct ulpi_driver *drv = to_ulpi_driver(dev->driver);
+
+ return drv->probe(to_ulpi_dev(dev));
+}
+
+static int ulpi_remove(struct device *dev)
+{
+ struct ulpi_driver *drv = to_ulpi_driver(dev->driver);
+
+ if (drv->remove)
+ drv->remove(to_ulpi_dev(dev));
+
+ return 0;
+}
+
+static struct bus_type ulpi_bus = {
+ .name = "ulpi",
+ .match = ulpi_match,
+ .uevent = ulpi_uevent,
+ .probe = ulpi_probe,
+ .remove = ulpi_remove,
+};
+
+/* -------------------------------------------------------------------------- */
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ulpi *ulpi = to_ulpi_dev(dev);
+
+ return sprintf(buf, "ulpi:v%04xp%04x\n",
+ ulpi->id.vendor, ulpi->id.product);
+}
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *ulpi_dev_attrs[] = {
+ &dev_attr_modalias.attr,
+ NULL
+};
+
+static struct attribute_group ulpi_dev_attr_group = {
+ .attrs = ulpi_dev_attrs,
+};
+
+static const struct attribute_group *ulpi_dev_attr_groups[] = {
+ &ulpi_dev_attr_group,
+ NULL
+};
+
+static void ulpi_dev_release(struct device *dev)
+{
+ kfree(to_ulpi_dev(dev));
+}
+
+static struct device_type ulpi_dev_type = {
+ .name = "ulpi_device",
+ .groups = ulpi_dev_attr_groups,
+ .release = ulpi_dev_release,
+};
+
+/* -------------------------------------------------------------------------- */
+
+/**
+ * ulpi_register_driver - register a driver with the ULPI bus
+ * @drv: driver being registered
+ *
+ * Registers a driver with the ULPI bus.
+ */
+int ulpi_register_driver(struct ulpi_driver *drv)
+{
+ if (!drv->probe)
+ return -EINVAL;
+
+ drv->driver.bus = &ulpi_bus;
+
+ return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL_GPL(ulpi_register_driver);
+
+/**
+ * ulpi_unregister_driver - unregister a driver with the ULPI bus
+ * @drv: driver to unregister
+ *
+ * Unregisters a driver with the ULPI bus.
+ */
+void ulpi_unregister_driver(struct ulpi_driver *drv)
+{
+ driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL_GPL(ulpi_unregister_driver);
+
+/* -------------------------------------------------------------------------- */
+
+static int ulpi_register(struct device *dev, struct ulpi *ulpi)
+{
+ int ret;
+
+ /* Test the interface */
+ ret = ulpi_write(ulpi, ULPI_SCRATCH, 0xaa);
+ if (ret < 0)
+ return ret;
+
+ ret = ulpi_read(ulpi, ULPI_SCRATCH);
+ if (ret < 0)
+ return ret;
+
+ if (ret != 0xaa)
+ return -ENODEV;
+
+ ulpi->id.vendor = ulpi_read(ulpi, ULPI_VENDOR_ID_LOW);
+ ulpi->id.vendor |= ulpi_read(ulpi, ULPI_VENDOR_ID_HIGH) << 8;
+
+ ulpi->id.product = ulpi_read(ulpi, ULPI_PRODUCT_ID_LOW);
+ ulpi->id.product |= ulpi_read(ulpi, ULPI_PRODUCT_ID_HIGH) << 8;
+
+ ulpi->dev.parent = dev;
+ ulpi->dev.bus = &ulpi_bus;
+ ulpi->dev.type = &ulpi_dev_type;
+ dev_set_name(&ulpi->dev, "%s.ulpi", dev_name(dev));
+
+ ACPI_COMPANION_SET(&ulpi->dev, ACPI_COMPANION(dev));
+
+ request_module("ulpi:v%04xp%04x", ulpi->id.vendor, ulpi->id.product);
+
+ ret = device_register(&ulpi->dev);
+ if (ret)
+ return ret;
+
+ dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n",
+ ulpi->id.vendor, ulpi->id.product);
+
+ return 0;
+}
+
+/**
+ * ulpi_register_interface - instantiate new ULPI device
+ * @dev: USB controller's device interface
+ * @ops: ULPI register access
+ *
+ * Allocates and registers a ULPI device and an interface for it. Called from
+ * the USB controller that provides the ULPI interface.
+ */
+struct ulpi *ulpi_register_interface(struct device *dev, struct ulpi_ops *ops)
+{
+ struct ulpi *ulpi;
+ int ret;
+
+ ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
+ if (!ulpi)
+ return ERR_PTR(-ENOMEM);
+
+ ulpi->ops = ops;
+ ops->dev = dev;
+
+ ret = ulpi_register(dev, ulpi);
+ if (ret) {
+ kfree(ulpi);
+ return ERR_PTR(ret);
+ }
+
+ return ulpi;
+}
+EXPORT_SYMBOL_GPL(ulpi_register_interface);
+
+/**
+ * ulpi_unregister_interface - unregister ULPI interface
+ * @intrf: struct ulpi_interface
+ *
+ * Unregisters a ULPI device and it's interface that was created with
+ * ulpi_create_interface().
+ */
+void ulpi_unregister_interface(struct ulpi *ulpi)
+{
+ device_unregister(&ulpi->dev);
+}
+EXPORT_SYMBOL_GPL(ulpi_unregister_interface);
+
+/* -------------------------------------------------------------------------- */
+
+static int __init ulpi_init(void)
+{
+ return bus_register(&ulpi_bus);
+}
+subsys_initcall(ulpi_init);
+
+static void __exit ulpi_exit(void)
+{
+ bus_unregister(&ulpi_bus);
+}
+module_exit(ulpi_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("USB ULPI PHY bus");
diff --git a/kernel/drivers/usb/core/Kconfig b/kernel/drivers/usb/core/Kconfig
index cc0ced08b..dd2801087 100644
--- a/kernel/drivers/usb/core/Kconfig
+++ b/kernel/drivers/usb/core/Kconfig
@@ -77,10 +77,29 @@ config USB_OTG_BLACKLIST_HUB
config USB_OTG_FSM
tristate "USB 2.0 OTG FSM implementation"
- depends on USB
- select USB_OTG
+ depends on USB && USB_OTG
select USB_PHY
help
Implements OTG Finite State Machine as specified in On-The-Go
and Embedded Host Supplement to the USB Revision 2.0 Specification.
+config USB_ULPI_BUS
+ tristate "USB ULPI PHY interface support"
+ depends on USB_SUPPORT
+ help
+ UTMI+ Low Pin Interface (ULPI) is specification for a commonly used
+ USB 2.0 PHY interface. The ULPI specification defines a standard set
+ of registers that can be used to detect the vendor and product which
+ allows ULPI to be handled as a bus. This module is the driver for that
+ bus.
+
+ The ULPI interfaces (the buses) are registered by the drivers for USB
+ controllers which support ULPI register access and have ULPI PHY
+ attached to them. The ULPI PHY drivers themselves are normal PHY
+ drivers.
+
+ ULPI PHYs provide often functions such as ADP sensing/probing (OTG
+ protocol) and USB charger detection.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ulpi.
diff --git a/kernel/drivers/usb/core/buffer.c b/kernel/drivers/usb/core/buffer.c
index 506b969ea..89f2e7765 100644
--- a/kernel/drivers/usb/core/buffer.c
+++ b/kernel/drivers/usb/core/buffer.c
@@ -70,7 +70,7 @@ int hcd_buffer_create(struct usb_hcd *hcd)
size = pool_max[i];
if (!size)
continue;
- snprintf(name, sizeof name, "buffer-%d", size);
+ snprintf(name, sizeof(name), "buffer-%d", size);
hcd->pool[i] = dma_pool_create(name, hcd->self.controller,
size, size, 0);
if (!hcd->pool[i]) {
@@ -95,6 +95,7 @@ void hcd_buffer_destroy(struct usb_hcd *hcd)
for (i = 0; i < HCD_BUFFER_POOLS; i++) {
struct dma_pool *pool = hcd->pool[i];
+
if (pool) {
dma_pool_destroy(pool);
hcd->pool[i] = NULL;
diff --git a/kernel/drivers/usb/core/config.c b/kernel/drivers/usb/core/config.c
index b2a540b43..5050760f5 100644
--- a/kernel/drivers/usb/core/config.c
+++ b/kernel/drivers/usb/core/config.c
@@ -112,16 +112,18 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
cfgno, inum, asnum, ep->desc.bEndpointAddress);
ep->ss_ep_comp.bmAttributes = 16;
} else if (usb_endpoint_xfer_isoc(&ep->desc) &&
- desc->bmAttributes > 2) {
+ USB_SS_MULT(desc->bmAttributes) > 3) {
dev_warn(ddev, "Isoc endpoint has Mult of %d in "
"config %d interface %d altsetting %d ep %d: "
- "setting to 3\n", desc->bmAttributes + 1,
+ "setting to 3\n",
+ USB_SS_MULT(desc->bmAttributes),
cfgno, inum, asnum, ep->desc.bEndpointAddress);
ep->ss_ep_comp.bmAttributes = 2;
}
if (usb_endpoint_xfer_isoc(&ep->desc))
- max_tx = (desc->bMaxBurst + 1) * (desc->bmAttributes + 1) *
+ max_tx = (desc->bMaxBurst + 1) *
+ (USB_SS_MULT(desc->bmAttributes)) *
usb_endpoint_maxp(&ep->desc);
else if (usb_endpoint_xfer_int(&ep->desc))
max_tx = usb_endpoint_maxp(&ep->desc) *
@@ -852,6 +854,10 @@ int usb_get_bos_descriptor(struct usb_device *dev)
dev->bos->ss_cap =
(struct usb_ss_cap_descriptor *)buffer;
break;
+ case USB_SSP_CAP_TYPE:
+ dev->bos->ssp_cap =
+ (struct usb_ssp_cap_descriptor *)buffer;
+ break;
case CONTAINER_ID_TYPE:
dev->bos->ss_id =
(struct usb_ss_container_id_descriptor *)buffer;
diff --git a/kernel/drivers/usb/core/devio.c b/kernel/drivers/usb/core/devio.c
index 986abde07..38ae877c4 100644
--- a/kernel/drivers/usb/core/devio.c
+++ b/kernel/drivers/usb/core/devio.c
@@ -103,7 +103,7 @@ MODULE_PARM_DESC(usbfs_snoop, "true to log all usbfs traffic");
#define snoop(dev, format, arg...) \
do { \
if (usbfs_snoop) \
- dev_info(dev , format , ## arg); \
+ dev_info(dev, format, ## arg); \
} while (0)
enum snoop_when {
@@ -1082,7 +1082,8 @@ static int proc_bulk(struct usb_dev_state *ps, void __user *arg)
ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb));
if (ret)
return ret;
- if (!(tbuf = kmalloc(len1, GFP_KERNEL))) {
+ tbuf = kmalloc(len1, GFP_KERNEL);
+ if (!tbuf) {
ret = -ENOMEM;
goto done;
}
@@ -1224,7 +1225,8 @@ static int proc_setintf(struct usb_dev_state *ps, void __user *arg)
if (copy_from_user(&setintf, arg, sizeof(setintf)))
return -EFAULT;
- if ((ret = checkintf(ps, setintf.interface)))
+ ret = checkintf(ps, setintf.interface);
+ if (ret)
return ret;
destroy_async_on_interface(ps, setintf.interface);
@@ -1319,7 +1321,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
is_in = (uurb->endpoint & USB_ENDPOINT_DIR_MASK) != 0;
u = 0;
- switch(uurb->type) {
+ switch (uurb->type) {
case USBDEVFS_URB_TYPE_CONTROL:
if (!usb_endpoint_xfer_control(&ep->desc))
return -EINVAL;
@@ -1393,7 +1395,8 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
number_of_packets = uurb->number_of_packets;
isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) *
number_of_packets;
- if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
+ isopkt = kmalloc(isofrmlen, GFP_KERNEL);
+ if (!isopkt)
return -ENOMEM;
if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
ret = -EFAULT;
@@ -1904,7 +1907,8 @@ static int proc_releaseinterface(struct usb_dev_state *ps, void __user *arg)
if (get_user(ifnum, (unsigned int __user *)arg))
return -EFAULT;
- if ((ret = releaseintf(ps, ifnum)) < 0)
+ ret = releaseintf(ps, ifnum);
+ if (ret < 0)
return ret;
destroy_async_on_interface (ps, ifnum);
return 0;
@@ -1919,7 +1923,8 @@ static int proc_ioctl(struct usb_dev_state *ps, struct usbdevfs_ioctl *ctl)
struct usb_driver *driver = NULL;
/* alloc buffer */
- if ((size = _IOC_SIZE(ctl->ioctl_code)) > 0) {
+ size = _IOC_SIZE(ctl->ioctl_code);
+ if (size > 0) {
buf = kmalloc(size, GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
diff --git a/kernel/drivers/usb/core/driver.c b/kernel/drivers/usb/core/driver.c
index 818369aff..56593a9a8 100644
--- a/kernel/drivers/usb/core/driver.c
+++ b/kernel/drivers/usb/core/driver.c
@@ -160,6 +160,7 @@ static ssize_t remove_id_store(struct device_driver *driver, const char *buf,
spin_lock(&usb_driver->dynids.lock);
list_for_each_entry_safe(dynid, n, &usb_driver->dynids.list, node) {
struct usb_device_id *id = &dynid->id;
+
if ((id->idVendor == idVendor) &&
(id->idProduct == idProduct)) {
list_del(&dynid->node);
@@ -295,6 +296,10 @@ static int usb_probe_interface(struct device *dev)
if (udev->authorized == 0) {
dev_err(&intf->dev, "Device is not authorized for usage\n");
return error;
+ } else if (intf->authorized == 0) {
+ dev_err(&intf->dev, "Interface %d is not authorized for usage\n",
+ intf->altsetting->desc.bInterfaceNumber);
+ return error;
}
id = usb_match_dynamic_id(intf, driver);
@@ -416,12 +421,10 @@ static int usb_unbind_interface(struct device *dev)
if (ep->streams == 0)
continue;
if (j == 0) {
- eps = kmalloc(USB_MAXENDPOINTS * sizeof(void *),
+ eps = kmalloc_array(USB_MAXENDPOINTS, sizeof(void *),
GFP_KERNEL);
- if (!eps) {
- dev_warn(dev, "oom, leaking streams\n");
+ if (!eps)
break;
- }
}
eps[j++] = ep;
}
@@ -507,6 +510,10 @@ int usb_driver_claim_interface(struct usb_driver *driver,
if (dev->driver)
return -EBUSY;
+ /* reject claim if interface is not authorized */
+ if (!iface->authorized)
+ return -ENODEV;
+
udev = interface_to_usbdev(iface);
dev->driver = &driver->drvwrap.driver;
diff --git a/kernel/drivers/usb/core/endpoint.c b/kernel/drivers/usb/core/endpoint.c
index 39a24021f..101983b7e 100644
--- a/kernel/drivers/usb/core/endpoint.c
+++ b/kernel/drivers/usb/core/endpoint.c
@@ -51,7 +51,7 @@ static ssize_t wMaxPacketSize_show(struct device *dev,
{
struct ep_device *ep = to_ep_device(dev);
return sprintf(buf, "%04x\n",
- usb_endpoint_maxp(ep->desc) & 0x07ff);
+ usb_endpoint_maxp(ep->desc) & 0x07ff);
}
static DEVICE_ATTR_RO(wMaxPacketSize);
diff --git a/kernel/drivers/usb/core/hcd.c b/kernel/drivers/usb/core/hcd.c
index ab14f8471..a8f2f5bf2 100644
--- a/kernel/drivers/usb/core/hcd.c
+++ b/kernel/drivers/usb/core/hcd.c
@@ -131,7 +131,7 @@ static inline int is_root_hub(struct usb_device *udev)
/* usb 3.0 root hub device descriptor */
static const u8 usb3_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x00, 0x03, /* __le16 bcdUSB; v3.0 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -152,7 +152,7 @@ static const u8 usb3_rh_dev_descriptor[18] = {
/* usb 2.5 (wireless USB 1.0) root hub device descriptor */
static const u8 usb25_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x50, 0x02, /* __le16 bcdUSB; v2.5 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -173,7 +173,7 @@ static const u8 usb25_rh_dev_descriptor[18] = {
/* usb 2.0 root hub device descriptor */
static const u8 usb2_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x00, 0x02, /* __le16 bcdUSB; v2.0 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -196,7 +196,7 @@ static const u8 usb2_rh_dev_descriptor[18] = {
/* usb 1.1 root hub device descriptor */
static const u8 usb11_rh_dev_descriptor[18] = {
0x12, /* __u8 bLength; */
- 0x01, /* __u8 bDescriptorType; Device */
+ USB_DT_DEVICE, /* __u8 bDescriptorType; Device */
0x10, 0x01, /* __le16 bcdUSB; v1.1 */
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
@@ -223,7 +223,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x19, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -248,7 +248,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -259,7 +259,7 @@ static const u8 fs_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
@@ -270,7 +270,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x19, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -295,7 +295,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -306,7 +306,7 @@ static const u8 hs_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
/* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
@@ -318,7 +318,7 @@ static const u8 hs_rh_config_descriptor[] = {
static const u8 ss_rh_config_descriptor[] = {
/* one configuration */
0x09, /* __u8 bLength; */
- 0x02, /* __u8 bDescriptorType; Configuration */
+ USB_DT_CONFIG, /* __u8 bDescriptorType; Configuration */
0x1f, 0x00, /* __le16 wTotalLength; */
0x01, /* __u8 bNumInterfaces; (1) */
0x01, /* __u8 bConfigurationValue; */
@@ -332,7 +332,7 @@ static const u8 ss_rh_config_descriptor[] = {
/* one interface */
0x09, /* __u8 if_bLength; */
- 0x04, /* __u8 if_bDescriptorType; Interface */
+ USB_DT_INTERFACE, /* __u8 if_bDescriptorType; Interface */
0x00, /* __u8 if_bInterfaceNumber; */
0x00, /* __u8 if_bAlternateSetting; */
0x01, /* __u8 if_bNumEndpoints; */
@@ -343,7 +343,7 @@ static const u8 ss_rh_config_descriptor[] = {
/* one endpoint (status change endpoint) */
0x07, /* __u8 ep_bLength; */
- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+ USB_DT_ENDPOINT, /* __u8 ep_bDescriptorType; Endpoint */
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
0x03, /* __u8 ep_bmAttributes; Interrupt */
/* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
@@ -353,7 +353,8 @@ static const u8 ss_rh_config_descriptor[] = {
/* one SuperSpeed endpoint companion descriptor */
0x06, /* __u8 ss_bLength */
- 0x30, /* __u8 ss_bDescriptorType; SuperSpeed EP Companion */
+ USB_DT_SS_ENDPOINT_COMP, /* __u8 ss_bDescriptorType; SuperSpeed EP */
+ /* Companion */
0x00, /* __u8 ss_bMaxBurst; allows 1 TX between ACKs */
0x00, /* __u8 ss_bmAttributes; 1 packet per service interval */
0x02, 0x00 /* __le16 ss_wBytesPerInterval; 15 bits for max 15 ports */
@@ -555,6 +556,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
switch (wValue & 0xff00) {
case USB_DT_DEVICE << 8:
switch (hcd->speed) {
+ case HCD_USB31:
case HCD_USB3:
bufp = usb3_rh_dev_descriptor;
break;
@@ -576,6 +578,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
break;
case USB_DT_CONFIG << 8:
switch (hcd->speed) {
+ case HCD_USB31:
case HCD_USB3:
bufp = ss_rh_config_descriptor;
len = sizeof ss_rh_config_descriptor;
@@ -854,10 +857,10 @@ static ssize_t authorized_default_show(struct device *dev,
{
struct usb_device *rh_usb_dev = to_usb_device(dev);
struct usb_bus *usb_bus = rh_usb_dev->bus;
- struct usb_hcd *usb_hcd;
+ struct usb_hcd *hcd;
- usb_hcd = bus_to_hcd(usb_bus);
- return snprintf(buf, PAGE_SIZE, "%u\n", usb_hcd->authorized_default);
+ hcd = bus_to_hcd(usb_bus);
+ return snprintf(buf, PAGE_SIZE, "%u\n", !!HCD_DEV_AUTHORIZED(hcd));
}
static ssize_t authorized_default_store(struct device *dev,
@@ -868,12 +871,16 @@ static ssize_t authorized_default_store(struct device *dev,
unsigned val;
struct usb_device *rh_usb_dev = to_usb_device(dev);
struct usb_bus *usb_bus = rh_usb_dev->bus;
- struct usb_hcd *usb_hcd;
+ struct usb_hcd *hcd;
- usb_hcd = bus_to_hcd(usb_bus);
+ hcd = bus_to_hcd(usb_bus);
result = sscanf(buf, "%u\n", &val);
if (result == 1) {
- usb_hcd->authorized_default = val ? 1 : 0;
+ if (val)
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+
result = size;
} else {
result = -EINVAL;
@@ -882,9 +889,53 @@ static ssize_t authorized_default_store(struct device *dev,
}
static DEVICE_ATTR_RW(authorized_default);
+/*
+ * interface_authorized_default_show - show default authorization status
+ * for USB interfaces
+ *
+ * note: interface_authorized_default is the default value
+ * for initializing the authorized attribute of interfaces
+ */
+static ssize_t interface_authorized_default_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_device *usb_dev = to_usb_device(dev);
+ struct usb_hcd *hcd = bus_to_hcd(usb_dev->bus);
+
+ return sprintf(buf, "%u\n", !!HCD_INTF_AUTHORIZED(hcd));
+}
+
+/*
+ * interface_authorized_default_store - store default authorization status
+ * for USB interfaces
+ *
+ * note: interface_authorized_default is the default value
+ * for initializing the authorized attribute of interfaces
+ */
+static ssize_t interface_authorized_default_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_device *usb_dev = to_usb_device(dev);
+ struct usb_hcd *hcd = bus_to_hcd(usb_dev->bus);
+ int rc = count;
+ bool val;
+
+ if (strtobool(buf, &val) != 0)
+ return -EINVAL;
+
+ if (val)
+ set_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+
+ return rc;
+}
+static DEVICE_ATTR_RW(interface_authorized_default);
+
/* Group all the USB bus attributes */
static struct attribute *usb_bus_attrs[] = {
&dev_attr_authorized_default.attr,
+ &dev_attr_interface_authorized_default.attr,
NULL,
};
@@ -2676,25 +2727,38 @@ int usb_add_hcd(struct usb_hcd *hcd,
dev_info(hcd->self.controller, "%s\n", hcd->product_desc);
/* Keep old behaviour if authorized_default is not in [0, 1]. */
- if (authorized_default < 0 || authorized_default > 1)
- hcd->authorized_default = hcd->wireless ? 0 : 1;
- else
- hcd->authorized_default = authorized_default;
+ if (authorized_default < 0 || authorized_default > 1) {
+ if (hcd->wireless)
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ } else {
+ if (authorized_default)
+ set_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ else
+ clear_bit(HCD_FLAG_DEV_AUTHORIZED, &hcd->flags);
+ }
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+ /* per default all interfaces are authorized */
+ set_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags);
+
/* HC is in reset state, but accessible. Now do the one-time init,
* bottom up so that hcds can customize the root hubs before hub_wq
* starts talking to them. (Note, bus id is assigned early too.)
*/
- if ((retval = hcd_buffer_create(hcd)) != 0) {
+ retval = hcd_buffer_create(hcd);
+ if (retval != 0) {
dev_dbg(hcd->self.controller, "pool alloc failed\n");
goto err_create_buf;
}
- if ((retval = usb_register_bus(&hcd->self)) < 0)
+ retval = usb_register_bus(&hcd->self);
+ if (retval < 0)
goto err_register_bus;
- if ((rhdev = usb_alloc_dev(NULL, &hcd->self, 0)) == NULL) {
+ rhdev = usb_alloc_dev(NULL, &hcd->self, 0);
+ if (rhdev == NULL) {
dev_err(hcd->self.controller, "unable to allocate root hub\n");
retval = -ENOMEM;
goto err_allocate_root_hub;
@@ -2714,6 +2778,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
rhdev->speed = USB_SPEED_WIRELESS;
break;
case HCD_USB3:
+ case HCD_USB31:
rhdev->speed = USB_SPEED_SUPER;
break;
default:
@@ -2736,9 +2801,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
/* "reset" is misnamed; its role is now one-time init. the controller
* should already have been reset (and boot firmware kicked off etc).
*/
- if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) {
- dev_err(hcd->self.controller, "can't setup: %d\n", retval);
- goto err_hcd_driver_setup;
+ if (hcd->driver->reset) {
+ retval = hcd->driver->reset(hcd);
+ if (retval < 0) {
+ dev_err(hcd->self.controller, "can't setup: %d\n",
+ retval);
+ goto err_hcd_driver_setup;
+ }
}
hcd->rh_pollable = 1;
@@ -2768,7 +2837,8 @@ int usb_add_hcd(struct usb_hcd *hcd,
}
/* starting here, usbcore will pay attention to this root hub */
- if ((retval = register_root_hub(hcd)) != 0)
+ retval = register_root_hub(hcd);
+ if (retval != 0)
goto err_register_root_hub;
retval = sysfs_create_group(&rhdev->dev.kobj, &usb_bus_attr_group);
diff --git a/kernel/drivers/usb/core/hub.c b/kernel/drivers/usb/core/hub.c
index 1e9a8c9aa..1560f3f3e 100644
--- a/kernel/drivers/usb/core/hub.c
+++ b/kernel/drivers/usb/core/hub.c
@@ -50,8 +50,8 @@ DEFINE_MUTEX(usb_port_peer_mutex);
/* cycle leds on hubs that aren't blinking for attention */
static bool blinkenlights = 0;
-module_param (blinkenlights, bool, S_IRUGO);
-MODULE_PARM_DESC (blinkenlights, "true to cycle leds on hubs");
+module_param(blinkenlights, bool, S_IRUGO);
+MODULE_PARM_DESC(blinkenlights, "true to cycle leds on hubs");
/*
* Device SATA8000 FW1.0 from DATAST0R Technology Corp requires about
@@ -124,10 +124,14 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
int usb_device_supports_lpm(struct usb_device *udev)
{
+ /* Some devices have trouble with LPM */
+ if (udev->quirks & USB_QUIRK_NO_LPM)
+ return 0;
+
/* USB 2.1 (and greater) devices indicate LPM support through
* their USB 2.0 Extended Capabilities BOS descriptor.
*/
- if (udev->speed == USB_SPEED_HIGH) {
+ if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) {
if (udev->bos->ext_cap &&
(USB_LPM_SUPPORT &
le32_to_cpu(udev->bos->ext_cap->bmAttributes)))
@@ -439,7 +443,7 @@ static void set_port_led(struct usb_hub *hub, int port1, int selector)
#define LED_CYCLE_PERIOD ((2*HZ)/3)
-static void led_work (struct work_struct *work)
+static void led_work(struct work_struct *work)
{
struct usb_hub *hub =
container_of(work, struct usb_hub, leds.work);
@@ -646,7 +650,7 @@ static void hub_irq(struct urb *urb)
default: /* presumably an error */
/* Cause a hub reset after 10 consecutive errors */
- dev_dbg (hub->intfdev, "transfer --> %d\n", status);
+ dev_dbg(hub->intfdev, "transfer --> %d\n", status);
if ((++hub->nerrors < 10) || hub->error)
goto resubmit;
hub->error = status;
@@ -671,14 +675,14 @@ resubmit:
if (hub->quiescing)
return;
- if ((status = usb_submit_urb (hub->urb, GFP_ATOMIC)) != 0
- && status != -ENODEV && status != -EPERM)
- dev_err (hub->intfdev, "resubmit --> %d\n", status);
+ status = usb_submit_urb(hub->urb, GFP_ATOMIC);
+ if (status != 0 && status != -ENODEV && status != -EPERM)
+ dev_err(hub->intfdev, "resubmit --> %d\n", status);
}
/* USB 2.0 spec Section 11.24.2.3 */
static inline int
-hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt)
+hub_clear_tt_buffer(struct usb_device *hdev, u16 devinfo, u16 tt)
{
/* Need to clear both directions for control ep */
if (((devinfo >> 11) & USB_ENDPOINT_XFERTYPE_MASK) ==
@@ -706,7 +710,7 @@ static void hub_tt_work(struct work_struct *work)
container_of(work, struct usb_hub, tt.clear_work);
unsigned long flags;
- spin_lock_irqsave (&hub->tt.lock, flags);
+ spin_lock_irqsave(&hub->tt.lock, flags);
while (!list_empty(&hub->tt.clear_list)) {
struct list_head *next;
struct usb_tt_clear *clear;
@@ -715,14 +719,14 @@ static void hub_tt_work(struct work_struct *work)
int status;
next = hub->tt.clear_list.next;
- clear = list_entry (next, struct usb_tt_clear, clear_list);
- list_del (&clear->clear_list);
+ clear = list_entry(next, struct usb_tt_clear, clear_list);
+ list_del(&clear->clear_list);
/* drop lock so HCD can concurrently report other TT errors */
- spin_unlock_irqrestore (&hub->tt.lock, flags);
- status = hub_clear_tt_buffer (hdev, clear->devinfo, clear->tt);
+ spin_unlock_irqrestore(&hub->tt.lock, flags);
+ status = hub_clear_tt_buffer(hdev, clear->devinfo, clear->tt);
if (status && status != -ENODEV)
- dev_err (&hdev->dev,
+ dev_err(&hdev->dev,
"clear tt %d (%04x) error %d\n",
clear->tt, clear->devinfo, status);
@@ -734,7 +738,7 @@ static void hub_tt_work(struct work_struct *work)
kfree(clear);
spin_lock_irqsave(&hub->tt.lock, flags);
}
- spin_unlock_irqrestore (&hub->tt.lock, flags);
+ spin_unlock_irqrestore(&hub->tt.lock, flags);
}
/**
@@ -795,8 +799,9 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
* since each TT has "at least two" buffers that can need it (and
* there can be many TTs per hub). even if they're uncommon.
*/
- if ((clear = kmalloc (sizeof *clear, GFP_ATOMIC)) == NULL) {
- dev_err (&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
+ clear = kmalloc(sizeof *clear, GFP_ATOMIC);
+ if (clear == NULL) {
+ dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n");
/* FIXME recover somehow ... RESET_TT? */
return -ENOMEM;
}
@@ -805,10 +810,10 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
clear->tt = tt->multi ? udev->ttport : 1;
clear->devinfo = usb_pipeendpoint (pipe);
clear->devinfo |= udev->devnum << 4;
- clear->devinfo |= usb_pipecontrol (pipe)
+ clear->devinfo |= usb_pipecontrol(pipe)
? (USB_ENDPOINT_XFER_CONTROL << 11)
: (USB_ENDPOINT_XFER_BULK << 11);
- if (usb_pipein (pipe))
+ if (usb_pipein(pipe))
clear->devinfo |= 1 << 15;
/* info for completion callback */
@@ -816,10 +821,10 @@ int usb_hub_clear_tt_buffer(struct urb *urb)
clear->ep = urb->ep;
/* tell keventd to clear state for this TT */
- spin_lock_irqsave (&tt->lock, flags);
- list_add_tail (&clear->clear_list, &tt->clear_list);
+ spin_lock_irqsave(&tt->lock, flags);
+ list_add_tail(&clear->clear_list, &tt->clear_list);
schedule_work(&tt->clear_work);
- spin_unlock_irqrestore (&tt->lock, flags);
+ spin_unlock_irqrestore(&tt->lock, flags);
return 0;
}
EXPORT_SYMBOL_GPL(usb_hub_clear_tt_buffer);
@@ -1030,10 +1035,20 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
unsigned delay;
/* Continue a partial initialization */
- if (type == HUB_INIT2)
- goto init2;
- if (type == HUB_INIT3)
+ if (type == HUB_INIT2 || type == HUB_INIT3) {
+ device_lock(hub->intfdev);
+
+ /* Was the hub disconnected while we were waiting? */
+ if (hub->disconnected) {
+ device_unlock(hub->intfdev);
+ kref_put(&hub->kref, hub_release);
+ return;
+ }
+ if (type == HUB_INIT2)
+ goto init2;
goto init3;
+ }
+ kref_get(&hub->kref);
/* The superspeed hub except for root hub has to use Hub Depth
* value as an offset into the route string to locate the bits
@@ -1069,7 +1084,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
* for HUB_POST_RESET, but it's easier not to.
*/
if (type == HUB_INIT) {
- unsigned delay = hub_power_on_good_delay(hub);
+ delay = hub_power_on_good_delay(hub);
hub_power_on(hub, false);
INIT_DELAYED_WORK(&hub->init_work, hub_init_func2);
@@ -1231,6 +1246,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
queue_delayed_work(system_power_efficient_wq,
&hub->init_work,
msecs_to_jiffies(delay));
+ device_unlock(hub->intfdev);
return; /* Continues at init3: below */
} else {
msleep(delay);
@@ -1252,6 +1268,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
/* Allow autosuspend if it was suppressed */
if (type <= HUB_INIT3)
usb_autopm_put_interface_async(to_usb_interface(hub->intfdev));
+
+ if (type == HUB_INIT2 || type == HUB_INIT3)
+ device_unlock(hub->intfdev);
+
+ kref_put(&hub->kref, hub_release);
}
/* Implement the continuations for the delays above */
@@ -1403,7 +1424,6 @@ static int hub_configure(struct usb_hub *hub,
/* FIXME for USB 3.0, skip for now */
if ((wHubCharacteristics & HUB_CHAR_COMPOUND) &&
!(hub_is_superspeed(hdev))) {
- int i;
char portstr[USB_MAXCHILDREN + 1];
for (i = 0; i < maxchild; i++)
@@ -1441,8 +1461,8 @@ static int hub_configure(struct usb_hub *hub,
break;
}
- spin_lock_init (&hub->tt.lock);
- INIT_LIST_HEAD (&hub->tt.clear_list);
+ spin_lock_init(&hub->tt.lock);
+ INIT_LIST_HEAD(&hub->tt.clear_list);
INIT_WORK(&hub->tt.clear_work, hub_tt_work);
switch (hdev->descriptor.bDeviceProtocol) {
case USB_HUB_PR_FS:
@@ -1631,7 +1651,7 @@ static int hub_configure(struct usb_hub *hub,
return 0;
fail:
- dev_err (hub_dev, "config failed, %s (err %d)\n",
+ dev_err(hub_dev, "config failed, %s (err %d)\n",
message, ret);
/* hub_disconnect() frees urb and descriptor */
return ret;
@@ -1774,7 +1794,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
if ((desc->desc.bInterfaceSubClass != 0) &&
(desc->desc.bInterfaceSubClass != 1)) {
descriptor_error:
- dev_err (&intf->dev, "bad descriptor, ignoring hub\n");
+ dev_err(&intf->dev, "bad descriptor, ignoring hub\n");
return -EIO;
}
@@ -1789,11 +1809,11 @@ descriptor_error:
goto descriptor_error;
/* We found a hub */
- dev_info (&intf->dev, "USB hub found\n");
+ dev_info(&intf->dev, "USB hub found\n");
hub = kzalloc(sizeof(*hub), GFP_KERNEL);
if (!hub) {
- dev_dbg (&intf->dev, "couldn't kmalloc hub struct\n");
+ dev_dbg(&intf->dev, "couldn't kmalloc hub struct\n");
return -ENOMEM;
}
@@ -1806,7 +1826,7 @@ descriptor_error:
usb_get_intf(intf);
usb_get_dev(hdev);
- usb_set_intfdata (intf, hub);
+ usb_set_intfdata(intf, hub);
intf->needs_remote_wakeup = 1;
pm_suspend_ignore_children(&intf->dev, true);
@@ -1819,14 +1839,14 @@ descriptor_error:
if (hub_configure(hub, endpoint) >= 0)
return 0;
- hub_disconnect (intf);
+ hub_disconnect(intf);
return -ENODEV;
}
static int
hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data)
{
- struct usb_device *hdev = interface_to_usbdev (intf);
+ struct usb_device *hdev = interface_to_usbdev(intf);
struct usb_hub *hub = usb_hub_to_struct_hub(hdev);
/* assert ifno == 0 (part of hub spec) */
@@ -2142,7 +2162,7 @@ void usb_disconnect(struct usb_device **pdev)
* cleaning up all state associated with the current configuration
* so that the hardware is now fully quiesced.
*/
- dev_dbg (&udev->dev, "unregistering device\n");
+ dev_dbg(&udev->dev, "unregistering device\n");
usb_disable_device(udev, 0);
usb_hcd_synchronize_unlinks(udev);
@@ -2239,39 +2259,49 @@ static int usb_enumerate_device_otg(struct usb_device *udev)
&& udev->parent == udev->bus->root_hub) {
struct usb_otg_descriptor *desc = NULL;
struct usb_bus *bus = udev->bus;
+ unsigned port1 = udev->portnum;
/* descriptor may appear anywhere in config */
- if (__usb_get_extra_descriptor (udev->rawdescriptors[0],
- le16_to_cpu(udev->config[0].desc.wTotalLength),
- USB_DT_OTG, (void **) &desc) == 0) {
- if (desc->bmAttributes & USB_OTG_HNP) {
- unsigned port1 = udev->portnum;
+ err = __usb_get_extra_descriptor(udev->rawdescriptors[0],
+ le16_to_cpu(udev->config[0].desc.wTotalLength),
+ USB_DT_OTG, (void **) &desc);
+ if (err || !(desc->bmAttributes & USB_OTG_HNP))
+ return 0;
- dev_info(&udev->dev,
- "Dual-Role OTG device on %sHNP port\n",
- (port1 == bus->otg_port)
- ? "" : "non-");
-
- /* enable HNP before suspend, it's simpler */
- if (port1 == bus->otg_port)
- bus->b_hnp_enable = 1;
- err = usb_control_msg(udev,
- usb_sndctrlpipe(udev, 0),
- USB_REQ_SET_FEATURE, 0,
- bus->b_hnp_enable
- ? USB_DEVICE_B_HNP_ENABLE
- : USB_DEVICE_A_ALT_HNP_SUPPORT,
- 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
- if (err < 0) {
- /* OTG MESSAGE: report errors here,
- * customize to match your product.
- */
- dev_info(&udev->dev,
- "can't set HNP mode: %d\n",
- err);
- bus->b_hnp_enable = 0;
- }
+ dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n",
+ (port1 == bus->otg_port) ? "" : "non-");
+
+ /* enable HNP before suspend, it's simpler */
+ if (port1 == bus->otg_port) {
+ bus->b_hnp_enable = 1;
+ err = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ USB_REQ_SET_FEATURE, 0,
+ USB_DEVICE_B_HNP_ENABLE,
+ 0, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ if (err < 0) {
+ /*
+ * OTG MESSAGE: report errors here,
+ * customize to match your product.
+ */
+ dev_err(&udev->dev, "can't set HNP mode: %d\n",
+ err);
+ bus->b_hnp_enable = 0;
}
+ } else if (desc->bLength == sizeof
+ (struct usb_otg_descriptor)) {
+ /* Set a_alt_hnp_support for legacy otg device */
+ err = usb_control_msg(udev,
+ usb_sndctrlpipe(udev, 0),
+ USB_REQ_SET_FEATURE, 0,
+ USB_DEVICE_A_ALT_HNP_SUPPORT,
+ 0, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+ if (err < 0)
+ dev_err(&udev->dev,
+ "set a_alt_hnp_support failed: %d\n",
+ err);
}
}
#endif
@@ -2350,6 +2380,26 @@ static void set_usb_port_removable(struct usb_device *udev)
hub = usb_hub_to_struct_hub(udev->parent);
+ /*
+ * If the platform firmware has provided information about a port,
+ * use that to determine whether it's removable.
+ */
+ switch (hub->ports[udev->portnum - 1]->connect_type) {
+ case USB_PORT_CONNECT_TYPE_HOT_PLUG:
+ udev->removable = USB_DEVICE_REMOVABLE;
+ return;
+ case USB_PORT_CONNECT_TYPE_HARD_WIRED:
+ case USB_PORT_NOT_USED:
+ udev->removable = USB_DEVICE_FIXED;
+ return;
+ default:
+ break;
+ }
+
+ /*
+ * Otherwise, check whether the hub knows whether a port is removable
+ * or not
+ */
wHubCharacteristics = le16_to_cpu(hub->descriptor->wHubCharacteristics);
if (!(wHubCharacteristics & HUB_CHAR_COMPOUND))
@@ -2369,21 +2419,6 @@ static void set_usb_port_removable(struct usb_device *udev)
else
udev->removable = USB_DEVICE_FIXED;
- /*
- * Platform firmware may have populated an alternative value for
- * removable. If the parent port has a known connect_type use
- * that instead.
- */
- switch (hub->ports[udev->portnum - 1]->connect_type) {
- case USB_PORT_CONNECT_TYPE_HOT_PLUG:
- udev->removable = USB_DEVICE_REMOVABLE;
- break;
- case USB_PORT_CONNECT_TYPE_HARD_WIRED:
- udev->removable = USB_DEVICE_FIXED;
- break;
- default: /* use what was set above */
- break;
- }
}
/**
@@ -3520,7 +3555,7 @@ static int check_ports_changed(struct usb_hub *hub)
static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
{
- struct usb_hub *hub = usb_get_intfdata (intf);
+ struct usb_hub *hub = usb_get_intfdata(intf);
struct usb_device *hdev = hub->hdev;
unsigned port1;
int status;
@@ -3860,17 +3895,30 @@ static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev,
return;
}
- if (usb_set_lpm_timeout(udev, state, timeout))
+ if (usb_set_lpm_timeout(udev, state, timeout)) {
/* If we can't set the parent hub U1/U2 timeout,
* device-initiated LPM won't be allowed either, so let the xHCI
* host know that this link state won't be enabled.
*/
hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state);
+ } else {
+ /* Only a configured device will accept the Set Feature
+ * U1/U2_ENABLE
+ */
+ if (udev->actconfig)
+ usb_set_device_initiated_lpm(udev, state, true);
- /* Only a configured device will accept the Set Feature U1/U2_ENABLE */
- else if (udev->actconfig)
- usb_set_device_initiated_lpm(udev, state, true);
-
+ /* As soon as usb_set_lpm_timeout(timeout) returns 0, the
+ * hub-initiated LPM is enabled. Thus, LPM is enabled no
+ * matter the result of usb_set_device_initiated_lpm().
+ * The only difference is whether device is able to initiate
+ * LPM.
+ */
+ if (state == USB3_LPM_U1)
+ udev->usb3_lpm_u1_enabled = 1;
+ else if (state == USB3_LPM_U2)
+ udev->usb3_lpm_u2_enabled = 1;
+ }
}
/*
@@ -3910,6 +3958,18 @@ static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev,
dev_warn(&udev->dev, "Could not disable xHCI %s timeout, "
"bus schedule bandwidth may be impacted.\n",
usb3_lpm_names[state]);
+
+ /* As soon as usb_set_lpm_timeout(0) return 0, hub initiated LPM
+ * is disabled. Hub will disallows link to enter U1/U2 as well,
+ * even device is initiating LPM. Hence LPM is disabled if hub LPM
+ * timeout set to 0, no matter device-initiated LPM is disabled or
+ * not.
+ */
+ if (state == USB3_LPM_U1)
+ udev->usb3_lpm_u1_enabled = 0;
+ else if (state == USB3_LPM_U2)
+ udev->usb3_lpm_u2_enabled = 0;
+
return 0;
}
@@ -4212,7 +4272,7 @@ static int hub_enable_device(struct usb_device *udev)
* but it is still necessary to lock the port.
*/
static int
-hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
+hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
int retry_counter)
{
struct usb_device *hdev = hub->hdev;
@@ -4493,6 +4553,8 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
goto fail;
}
+ usb_detect_quirks(udev);
+
if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
retval = usb_get_bos_descriptor(udev);
if (!retval) {
@@ -4516,7 +4578,7 @@ fail:
}
static void
-check_highspeed (struct usb_hub *hub, struct usb_device *udev, int port1)
+check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1)
{
struct usb_qualifier_descriptor *qual;
int status;
@@ -4524,11 +4586,11 @@ check_highspeed (struct usb_hub *hub, struct usb_device *udev, int port1)
if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER)
return;
- qual = kmalloc (sizeof *qual, GFP_KERNEL);
+ qual = kmalloc(sizeof *qual, GFP_KERNEL);
if (qual == NULL)
return;
- status = usb_get_descriptor (udev, USB_DT_DEVICE_QUALIFIER, 0,
+ status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0,
qual, sizeof *qual);
if (status == sizeof *qual) {
dev_info(&udev->dev, "not running at top speed; "
@@ -4544,7 +4606,7 @@ check_highspeed (struct usb_hub *hub, struct usb_device *udev, int port1)
}
static unsigned
-hub_power_remaining (struct usb_hub *hub)
+hub_power_remaining(struct usb_hub *hub)
{
struct usb_device *hdev = hub->hdev;
int remaining;
@@ -4691,7 +4753,6 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
if (status < 0)
goto loop;
- usb_detect_quirks(udev);
if (udev->quirks & USB_QUIRK_DELAY_INIT)
msleep(1000);
@@ -4731,7 +4792,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200
&& udev->speed == USB_SPEED_FULL
&& highspeed_hubs != 0)
- check_highspeed (hub, udev, port1);
+ check_highspeed(hub, udev, port1);
/* Store the parent's children[] pointer. At this point
* udev becomes globally accessible, although presumably
@@ -5105,7 +5166,7 @@ static const struct usb_device_id hub_id_table[] = {
{ } /* Terminating entry */
};
-MODULE_DEVICE_TABLE (usb, hub_id_table);
+MODULE_DEVICE_TABLE(usb, hub_id_table);
static struct usb_driver hub_driver = {
.name = "hub",
@@ -5217,7 +5278,7 @@ static int descriptors_changed(struct usb_device *udev,
changed = 1;
break;
}
- if (memcmp (buf, udev->rawdescriptors[index], old_length)
+ if (memcmp(buf, udev->rawdescriptors[index], old_length)
!= 0) {
dev_dbg(&udev->dev, "config index %d changed (#%d)\n",
index,
@@ -5307,9 +5368,6 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
if (udev->usb2_hw_lpm_enabled == 1)
usb_set_usb2_hardware_lpm(udev, 0);
- bos = udev->bos;
- udev->bos = NULL;
-
/* Disable LPM and LTM while we reset the device and reinstall the alt
* settings. Device-initiated LPM settings, and system exit latency
* settings are cleared when the device is reset, so we have to set
@@ -5318,15 +5376,17 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
ret = usb_unlocked_disable_lpm(udev);
if (ret) {
dev_err(&udev->dev, "%s Failed to disable LPM\n.", __func__);
- goto re_enumerate;
+ goto re_enumerate_no_bos;
}
ret = usb_disable_ltm(udev);
if (ret) {
dev_err(&udev->dev, "%s Failed to disable LTM\n.",
__func__);
- goto re_enumerate;
+ goto re_enumerate_no_bos;
}
+ bos = udev->bos;
+
for (i = 0; i < SET_CONFIG_TRIES; ++i) {
/* ep0 maxpacket size may change; let the HCD know about it.
@@ -5418,15 +5478,19 @@ done:
usb_set_usb2_hardware_lpm(udev, 1);
usb_unlocked_enable_lpm(udev);
usb_enable_ltm(udev);
- usb_release_bos_descriptor(udev);
- udev->bos = bos;
+ /* release the new BOS descriptor allocated by hub_port_init() */
+ if (udev->bos != bos) {
+ usb_release_bos_descriptor(udev);
+ udev->bos = bos;
+ }
return 0;
re_enumerate:
- /* LPM state doesn't matter when we're about to destroy the device. */
- hub_port_logical_disconnect(parent_hub, port1);
usb_release_bos_descriptor(udev);
udev->bos = bos;
+re_enumerate_no_bos:
+ /* LPM state doesn't matter when we're about to destroy the device. */
+ hub_port_logical_disconnect(parent_hub, port1);
return -ENODEV;
}
diff --git a/kernel/drivers/usb/core/message.c b/kernel/drivers/usb/core/message.c
index f368d2053..8e641b589 100644
--- a/kernel/drivers/usb/core/message.c
+++ b/kernel/drivers/usb/core/message.c
@@ -1387,8 +1387,6 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate)
* new altsetting.
*/
if (manual) {
- int i;
-
for (i = 0; i < alt->desc.bNumEndpoints; i++) {
epaddr = alt->endpoint[i].desc.bEndpointAddress;
pipe = __create_pipe(dev,
@@ -1555,6 +1553,44 @@ static void usb_release_interface(struct device *dev)
kfree(intf);
}
+/*
+ * usb_deauthorize_interface - deauthorize an USB interface
+ *
+ * @intf: USB interface structure
+ */
+void usb_deauthorize_interface(struct usb_interface *intf)
+{
+ struct device *dev = &intf->dev;
+
+ device_lock(dev->parent);
+
+ if (intf->authorized) {
+ device_lock(dev);
+ intf->authorized = 0;
+ device_unlock(dev);
+
+ usb_forced_unbind_intf(intf);
+ }
+
+ device_unlock(dev->parent);
+}
+
+/*
+ * usb_authorize_interface - authorize an USB interface
+ *
+ * @intf: USB interface structure
+ */
+void usb_authorize_interface(struct usb_interface *intf)
+{
+ struct device *dev = &intf->dev;
+
+ if (!intf->authorized) {
+ device_lock(dev);
+ intf->authorized = 1; /* authorize interface */
+ device_unlock(dev);
+ }
+}
+
static int usb_if_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct usb_device *usb_dev;
@@ -1807,6 +1843,7 @@ free_interfaces:
intfc = cp->intf_cache[i];
intf->altsetting = intfc->altsetting;
intf->num_altsetting = intfc->num_altsetting;
+ intf->authorized = !!HCD_INTF_AUTHORIZED(hcd);
kref_get(&intfc->ref);
alt = usb_altnum_to_altsetting(intf, 0);
diff --git a/kernel/drivers/usb/core/otg_whitelist.h b/kernel/drivers/usb/core/otg_whitelist.h
index a6315abe7..a95b0c989 100644
--- a/kernel/drivers/usb/core/otg_whitelist.h
+++ b/kernel/drivers/usb/core/otg_whitelist.h
@@ -16,7 +16,7 @@
* YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
*/
-static struct usb_device_id whitelist_table [] = {
+static struct usb_device_id whitelist_table[] = {
/* hubs are optional in OTG, but very handy ... */
{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
diff --git a/kernel/drivers/usb/core/port.c b/kernel/drivers/usb/core/port.c
index 210618319..5487fe308 100644
--- a/kernel/drivers/usb/core/port.c
+++ b/kernel/drivers/usb/core/port.c
@@ -206,7 +206,7 @@ static int link_peers(struct usb_port *left, struct usb_port *right)
else
method = "default";
- pr_warn("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
+ pr_debug("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",
dev_name(&left->dev), dev_name(&right->dev), method,
dev_name(&left->dev),
lpeer ? dev_name(&lpeer->dev) : "none",
@@ -265,7 +265,7 @@ static void link_peers_report(struct usb_port *left, struct usb_port *right)
if (rc == 0) {
dev_dbg(&left->dev, "peered to %s\n", dev_name(&right->dev));
} else {
- dev_warn(&left->dev, "failed to peer to %s (%d)\n",
+ dev_dbg(&left->dev, "failed to peer to %s (%d)\n",
dev_name(&right->dev), rc);
pr_warn_once("usb: port power management may be unreliable\n");
usb_port_block_power_off = 1;
diff --git a/kernel/drivers/usb/core/quirks.c b/kernel/drivers/usb/core/quirks.c
index d85abfed8..6dc810bce 100644
--- a/kernel/drivers/usb/core/quirks.c
+++ b/kernel/drivers/usb/core/quirks.c
@@ -54,6 +54,13 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
+ /* Logitech ConferenceCam CC3000e */
+ { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT },
+ { USB_DEVICE(0x046d, 0x0848), .driver_info = USB_QUIRK_DELAY_INIT },
+
+ /* Logitech PTZ Pro Camera */
+ { USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT },
+
/* Logitech Quickcam Fusion */
{ USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME },
@@ -78,6 +85,12 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Philips PSC805 audio device */
{ USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* Plantronic Audio 655 DSP */
+ { USB_DEVICE(0x047f, 0xc008), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* Plantronic Audio 648 USB */
+ { USB_DEVICE(0x047f, 0xc013), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* Artisman Watchdog Dongle */
{ USB_DEVICE(0x04b4, 0x0526), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
@@ -112,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
USB_QUIRK_DEVICE_QUALIFIER },
+ { USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+ USB_QUIRK_DEVICE_QUALIFIER },
+
/* Roland SC-8820 */
{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
@@ -186,6 +202,12 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
+ /* Blackmagic Design Intensity Shuttle */
+ { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
+
+ /* Blackmagic Design UltraStudio SDI */
+ { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
+
{ } /* terminating entry must be last */
};
diff --git a/kernel/drivers/usb/core/sysfs.c b/kernel/drivers/usb/core/sysfs.c
index d26973844..65b6e6b84 100644
--- a/kernel/drivers/usb/core/sysfs.c
+++ b/kernel/drivers/usb/core/sysfs.c
@@ -531,6 +531,44 @@ static ssize_t usb2_lpm_besl_store(struct device *dev,
}
static DEVICE_ATTR_RW(usb2_lpm_besl);
+static ssize_t usb3_hardware_lpm_u1_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ const char *p;
+
+ usb_lock_device(udev);
+
+ if (udev->usb3_lpm_u1_enabled)
+ p = "enabled";
+ else
+ p = "disabled";
+
+ usb_unlock_device(udev);
+
+ return sprintf(buf, "%s\n", p);
+}
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u1);
+
+static ssize_t usb3_hardware_lpm_u2_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ const char *p;
+
+ usb_lock_device(udev);
+
+ if (udev->usb3_lpm_u2_enabled)
+ p = "enabled";
+ else
+ p = "disabled";
+
+ usb_unlock_device(udev);
+
+ return sprintf(buf, "%s\n", p);
+}
+static DEVICE_ATTR_RO(usb3_hardware_lpm_u2);
+
static struct attribute *usb2_hardware_lpm_attr[] = {
&dev_attr_usb2_hardware_lpm.attr,
&dev_attr_usb2_lpm_l1_timeout.attr,
@@ -542,6 +580,16 @@ static struct attribute_group usb2_hardware_lpm_attr_group = {
.attrs = usb2_hardware_lpm_attr,
};
+static struct attribute *usb3_hardware_lpm_attr[] = {
+ &dev_attr_usb3_hardware_lpm_u1.attr,
+ &dev_attr_usb3_hardware_lpm_u2.attr,
+ NULL,
+};
+static struct attribute_group usb3_hardware_lpm_attr_group = {
+ .name = power_group_name,
+ .attrs = usb3_hardware_lpm_attr,
+};
+
static struct attribute *power_attrs[] = {
&dev_attr_autosuspend.attr,
&dev_attr_level.attr,
@@ -564,6 +612,10 @@ static int add_power_attributes(struct device *dev)
if (udev->usb2_hw_lpm_capable == 1)
rc = sysfs_merge_group(&dev->kobj,
&usb2_hardware_lpm_attr_group);
+ if (udev->speed == USB_SPEED_SUPER &&
+ udev->lpm_capable == 1)
+ rc = sysfs_merge_group(&dev->kobj,
+ &usb3_hardware_lpm_attr_group);
}
return rc;
@@ -926,6 +978,41 @@ static ssize_t supports_autosuspend_show(struct device *dev,
}
static DEVICE_ATTR_RO(supports_autosuspend);
+/*
+ * interface_authorized_show - show authorization status of an USB interface
+ * 1 is authorized, 0 is deauthorized
+ */
+static ssize_t interface_authorized_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+
+ return sprintf(buf, "%u\n", intf->authorized);
+}
+
+/*
+ * interface_authorized_store - authorize or deauthorize an USB interface
+ */
+static ssize_t interface_authorized_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct usb_interface *intf = to_usb_interface(dev);
+ bool val;
+
+ if (strtobool(buf, &val) != 0)
+ return -EINVAL;
+
+ if (val)
+ usb_authorize_interface(intf);
+ else
+ usb_deauthorize_interface(intf);
+
+ return count;
+}
+static struct device_attribute dev_attr_interface_authorized =
+ __ATTR(authorized, S_IRUGO | S_IWUSR,
+ interface_authorized_show, interface_authorized_store);
+
static struct attribute *intf_attrs[] = {
&dev_attr_bInterfaceNumber.attr,
&dev_attr_bAlternateSetting.attr,
@@ -935,6 +1022,7 @@ static struct attribute *intf_attrs[] = {
&dev_attr_bInterfaceProtocol.attr,
&dev_attr_modalias.attr,
&dev_attr_supports_autosuspend.attr,
+ &dev_attr_interface_authorized.attr,
NULL,
};
static struct attribute_group intf_attr_grp = {
diff --git a/kernel/drivers/usb/core/urb.c b/kernel/drivers/usb/core/urb.c
index c9e8ee81b..3d274778c 100644
--- a/kernel/drivers/usb/core/urb.c
+++ b/kernel/drivers/usb/core/urb.c
@@ -129,9 +129,8 @@ void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor)
list_add_tail(&urb->anchor_list, &anchor->urb_list);
urb->anchor = anchor;
- if (unlikely(anchor->poisoned)) {
+ if (unlikely(anchor->poisoned))
atomic_inc(&urb->reject);
- }
spin_unlock_irqrestore(&anchor->lock, flags);
}
diff --git a/kernel/drivers/usb/core/usb.c b/kernel/drivers/usb/core/usb.c
index 8d5b2f411..f8bbd0b6d 100644
--- a/kernel/drivers/usb/core/usb.c
+++ b/kernel/drivers/usb/core/usb.c
@@ -510,7 +510,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
if (root_hub) /* Root hub always ok [and always wired] */
dev->authorized = 1;
else {
- dev->authorized = usb_hcd->authorized_default;
+ dev->authorized = !!HCD_DEV_AUTHORIZED(usb_hcd);
dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0;
}
return dev;
diff --git a/kernel/drivers/usb/core/usb.h b/kernel/drivers/usb/core/usb.h
index 457255a33..05b5e17ab 100644
--- a/kernel/drivers/usb/core/usb.h
+++ b/kernel/drivers/usb/core/usb.h
@@ -27,6 +27,8 @@ extern void usb_release_interface_cache(struct kref *ref);
extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
extern int usb_deauthorize_device(struct usb_device *);
extern int usb_authorize_device(struct usb_device *);
+extern void usb_deauthorize_interface(struct usb_interface *);
+extern void usb_authorize_interface(struct usb_interface *);
extern void usb_detect_quirks(struct usb_device *udev);
extern void usb_detect_interface_quirks(struct usb_device *udev);
extern int usb_remove_device(struct usb_device *udev);
diff --git a/kernel/drivers/usb/dwc2/Kconfig b/kernel/drivers/usb/dwc2/Kconfig
index 1bcb36ae6..fd95ba6ec 100644
--- a/kernel/drivers/usb/dwc2/Kconfig
+++ b/kernel/drivers/usb/dwc2/Kconfig
@@ -50,18 +50,10 @@ config USB_DWC2_DUAL_ROLE
option requires USB_GADGET to be enabled.
endchoice
-config USB_DWC2_PLATFORM
- tristate "DWC2 Platform"
- default USB_DWC2_HOST || USB_DWC2_PERIPHERAL
- help
- The Designware USB2.0 platform interface module for
- controllers directly connected to the CPU.
-
config USB_DWC2_PCI
tristate "DWC2 PCI"
depends on PCI
default n
- select USB_DWC2_PLATFORM
select NOP_USB_XCEIV
help
The Designware USB2.0 PCI interface module for controllers
diff --git a/kernel/drivers/usb/dwc2/Makefile b/kernel/drivers/usb/dwc2/Makefile
index f07b425ea..50fdaace1 100644
--- a/kernel/drivers/usb/dwc2/Makefile
+++ b/kernel/drivers/usb/dwc2/Makefile
@@ -2,7 +2,7 @@ ccflags-$(CONFIG_USB_DWC2_DEBUG) += -DDEBUG
ccflags-$(CONFIG_USB_DWC2_VERBOSE) += -DVERBOSE_DEBUG
obj-$(CONFIG_USB_DWC2) += dwc2.o
-dwc2-y := core.o core_intr.o
+dwc2-y := core.o core_intr.o platform.o
ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
dwc2-y += hcd.o hcd_intr.o
@@ -13,6 +13,10 @@ ifneq ($(filter y,$(CONFIG_USB_DWC2_PERIPHERAL) $(CONFIG_USB_DWC2_DUAL_ROLE)),)
dwc2-y += gadget.o
endif
+ifneq ($(CONFIG_DEBUG_FS),)
+ dwc2-y += debugfs.o
+endif
+
# NOTE: The previous s3c-hsotg peripheral mode only driver has been moved to
# this location and renamed gadget.c. When building for dynamically linked
# modules, dwc2.ko will get built for host mode, peripheral mode, and dual-role
@@ -21,6 +25,3 @@ endif
obj-$(CONFIG_USB_DWC2_PCI) += dwc2_pci.o
dwc2_pci-y := pci.o
-
-obj-$(CONFIG_USB_DWC2_PLATFORM) += dwc2_platform.o
-dwc2_platform-y := platform.o
diff --git a/kernel/drivers/usb/dwc2/core.c b/kernel/drivers/usb/dwc2/core.c
index d5197d492..ef73e498e 100644
--- a/kernel/drivers/usb/dwc2/core.c
+++ b/kernel/drivers/usb/dwc2/core.c
@@ -56,6 +56,371 @@
#include "core.h"
#include "hcd.h"
+#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
+/**
+ * dwc2_backup_host_registers() - Backup controller host registers.
+ * When suspending usb bus, registers needs to be backuped
+ * if controller power is disabled once suspended.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_hregs_backup *hr;
+ int i;
+
+ dev_dbg(hsotg->dev, "%s\n", __func__);
+
+ /* Backup Host regs */
+ hr = &hsotg->hr_backup;
+ hr->hcfg = dwc2_readl(hsotg->regs + HCFG);
+ hr->haintmsk = dwc2_readl(hsotg->regs + HAINTMSK);
+ for (i = 0; i < hsotg->core_params->host_channels; ++i)
+ hr->hcintmsk[i] = dwc2_readl(hsotg->regs + HCINTMSK(i));
+
+ hr->hprt0 = dwc2_read_hprt0(hsotg);
+ hr->hfir = dwc2_readl(hsotg->regs + HFIR);
+ hr->valid = true;
+
+ return 0;
+}
+
+/**
+ * dwc2_restore_host_registers() - Restore controller host registers.
+ * When resuming usb bus, device registers needs to be restored
+ * if controller power were disabled.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_hregs_backup *hr;
+ int i;
+
+ dev_dbg(hsotg->dev, "%s\n", __func__);
+
+ /* Restore host regs */
+ hr = &hsotg->hr_backup;
+ if (!hr->valid) {
+ dev_err(hsotg->dev, "%s: no host registers to restore\n",
+ __func__);
+ return -EINVAL;
+ }
+ hr->valid = false;
+
+ dwc2_writel(hr->hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hr->haintmsk, hsotg->regs + HAINTMSK);
+
+ for (i = 0; i < hsotg->core_params->host_channels; ++i)
+ dwc2_writel(hr->hcintmsk[i], hsotg->regs + HCINTMSK(i));
+
+ dwc2_writel(hr->hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hr->hfir, hsotg->regs + HFIR);
+ hsotg->frame_number = 0;
+
+ return 0;
+}
+#else
+static inline int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg)
+{ return 0; }
+
+static inline int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg)
+{ return 0; }
+#endif
+
+#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \
+ IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
+/**
+ * dwc2_backup_device_registers() - Backup controller device registers.
+ * When suspending usb bus, registers needs to be backuped
+ * if controller power is disabled once suspended.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_dregs_backup *dr;
+ int i;
+
+ dev_dbg(hsotg->dev, "%s\n", __func__);
+
+ /* Backup dev regs */
+ dr = &hsotg->dr_backup;
+
+ dr->dcfg = dwc2_readl(hsotg->regs + DCFG);
+ dr->dctl = dwc2_readl(hsotg->regs + DCTL);
+ dr->daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
+ dr->diepmsk = dwc2_readl(hsotg->regs + DIEPMSK);
+ dr->doepmsk = dwc2_readl(hsotg->regs + DOEPMSK);
+
+ for (i = 0; i < hsotg->num_of_eps; i++) {
+ /* Backup IN EPs */
+ dr->diepctl[i] = dwc2_readl(hsotg->regs + DIEPCTL(i));
+
+ /* Ensure DATA PID is correctly configured */
+ if (dr->diepctl[i] & DXEPCTL_DPID)
+ dr->diepctl[i] |= DXEPCTL_SETD1PID;
+ else
+ dr->diepctl[i] |= DXEPCTL_SETD0PID;
+
+ dr->dieptsiz[i] = dwc2_readl(hsotg->regs + DIEPTSIZ(i));
+ dr->diepdma[i] = dwc2_readl(hsotg->regs + DIEPDMA(i));
+
+ /* Backup OUT EPs */
+ dr->doepctl[i] = dwc2_readl(hsotg->regs + DOEPCTL(i));
+
+ /* Ensure DATA PID is correctly configured */
+ if (dr->doepctl[i] & DXEPCTL_DPID)
+ dr->doepctl[i] |= DXEPCTL_SETD1PID;
+ else
+ dr->doepctl[i] |= DXEPCTL_SETD0PID;
+
+ dr->doeptsiz[i] = dwc2_readl(hsotg->regs + DOEPTSIZ(i));
+ dr->doepdma[i] = dwc2_readl(hsotg->regs + DOEPDMA(i));
+ }
+ dr->valid = true;
+ return 0;
+}
+
+/**
+ * dwc2_restore_device_registers() - Restore controller device registers.
+ * When resuming usb bus, device registers needs to be restored
+ * if controller power were disabled.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_dregs_backup *dr;
+ u32 dctl;
+ int i;
+
+ dev_dbg(hsotg->dev, "%s\n", __func__);
+
+ /* Restore dev regs */
+ dr = &hsotg->dr_backup;
+ if (!dr->valid) {
+ dev_err(hsotg->dev, "%s: no device registers to restore\n",
+ __func__);
+ return -EINVAL;
+ }
+ dr->valid = false;
+
+ dwc2_writel(dr->dcfg, hsotg->regs + DCFG);
+ dwc2_writel(dr->dctl, hsotg->regs + DCTL);
+ dwc2_writel(dr->daintmsk, hsotg->regs + DAINTMSK);
+ dwc2_writel(dr->diepmsk, hsotg->regs + DIEPMSK);
+ dwc2_writel(dr->doepmsk, hsotg->regs + DOEPMSK);
+
+ for (i = 0; i < hsotg->num_of_eps; i++) {
+ /* Restore IN EPs */
+ dwc2_writel(dr->diepctl[i], hsotg->regs + DIEPCTL(i));
+ dwc2_writel(dr->dieptsiz[i], hsotg->regs + DIEPTSIZ(i));
+ dwc2_writel(dr->diepdma[i], hsotg->regs + DIEPDMA(i));
+
+ /* Restore OUT EPs */
+ dwc2_writel(dr->doepctl[i], hsotg->regs + DOEPCTL(i));
+ dwc2_writel(dr->doeptsiz[i], hsotg->regs + DOEPTSIZ(i));
+ dwc2_writel(dr->doepdma[i], hsotg->regs + DOEPDMA(i));
+ }
+
+ /* Set the Power-On Programming done bit */
+ dctl = dwc2_readl(hsotg->regs + DCTL);
+ dctl |= DCTL_PWRONPRGDONE;
+ dwc2_writel(dctl, hsotg->regs + DCTL);
+
+ return 0;
+}
+#else
+static inline int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg)
+{ return 0; }
+
+static inline int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg)
+{ return 0; }
+#endif
+
+/**
+ * dwc2_backup_global_registers() - Backup global controller registers.
+ * When suspending usb bus, registers needs to be backuped
+ * if controller power is disabled once suspended.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_backup_global_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_gregs_backup *gr;
+ int i;
+
+ /* Backup global regs */
+ gr = &hsotg->gr_backup;
+
+ gr->gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
+ gr->gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
+ gr->gahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
+ gr->gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
+ gr->grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ);
+ gr->gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
+ gr->hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
+ gr->gdfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG);
+ for (i = 0; i < MAX_EPS_CHANNELS; i++)
+ gr->dtxfsiz[i] = dwc2_readl(hsotg->regs + DPTXFSIZN(i));
+
+ gr->valid = true;
+ return 0;
+}
+
+/**
+ * dwc2_restore_global_registers() - Restore controller global registers.
+ * When resuming usb bus, device registers needs to be restored
+ * if controller power were disabled.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+static int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_gregs_backup *gr;
+ int i;
+
+ dev_dbg(hsotg->dev, "%s\n", __func__);
+
+ /* Restore global regs */
+ gr = &hsotg->gr_backup;
+ if (!gr->valid) {
+ dev_err(hsotg->dev, "%s: no global registers to restore\n",
+ __func__);
+ return -EINVAL;
+ }
+ gr->valid = false;
+
+ dwc2_writel(0xffffffff, hsotg->regs + GINTSTS);
+ dwc2_writel(gr->gotgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(gr->gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gr->gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gr->gahbcfg, hsotg->regs + GAHBCFG);
+ dwc2_writel(gr->grxfsiz, hsotg->regs + GRXFSIZ);
+ dwc2_writel(gr->gnptxfsiz, hsotg->regs + GNPTXFSIZ);
+ dwc2_writel(gr->hptxfsiz, hsotg->regs + HPTXFSIZ);
+ dwc2_writel(gr->gdfifocfg, hsotg->regs + GDFIFOCFG);
+ for (i = 0; i < MAX_EPS_CHANNELS; i++)
+ dwc2_writel(gr->dtxfsiz[i], hsotg->regs + DPTXFSIZN(i));
+
+ return 0;
+}
+
+/**
+ * dwc2_exit_hibernation() - Exit controller from Partial Power Down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ * @restore: Controller registers need to be restored
+ */
+int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore)
+{
+ u32 pcgcctl;
+ int ret = 0;
+
+ if (!hsotg->core_params->hibernation)
+ return -ENOTSUPP;
+
+ pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
+ pcgcctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+
+ pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
+ pcgcctl &= ~PCGCTL_PWRCLMP;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+
+ pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
+ pcgcctl &= ~PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+
+ udelay(100);
+ if (restore) {
+ ret = dwc2_restore_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore registers\n",
+ __func__);
+ return ret;
+ }
+ if (dwc2_is_host_mode(hsotg)) {
+ ret = dwc2_restore_host_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore host registers\n",
+ __func__);
+ return ret;
+ }
+ } else {
+ ret = dwc2_restore_device_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to restore device registers\n",
+ __func__);
+ return ret;
+ }
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * dwc2_enter_hibernation() - Put controller in Partial Power Down.
+ *
+ * @hsotg: Programming view of the DWC_otg controller
+ */
+int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg)
+{
+ u32 pcgcctl;
+ int ret = 0;
+
+ if (!hsotg->core_params->hibernation)
+ return -ENOTSUPP;
+
+ /* Backup all registers */
+ ret = dwc2_backup_global_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup global registers\n",
+ __func__);
+ return ret;
+ }
+
+ if (dwc2_is_host_mode(hsotg)) {
+ ret = dwc2_backup_host_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup host registers\n",
+ __func__);
+ return ret;
+ }
+ } else {
+ ret = dwc2_backup_device_registers(hsotg);
+ if (ret) {
+ dev_err(hsotg->dev, "%s: failed to backup device registers\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ /*
+ * Clear any pending interrupts since dwc2 will not be able to
+ * clear them after entering hibernation.
+ */
+ dwc2_writel(0xffffffff, hsotg->regs + GINTSTS);
+
+ /* Put the controller in low power state */
+ pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
+
+ pcgcctl |= PCGCTL_PWRCLMP;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+ ndelay(20);
+
+ pcgcctl |= PCGCTL_RSTPDWNMODULE;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+ ndelay(20);
+
+ pcgcctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
+
+ return ret;
+}
+
/**
* dwc2_enable_common_interrupts() - Initializes the commmon interrupts,
* used in both device and host modes
@@ -67,21 +432,23 @@ static void dwc2_enable_common_interrupts(struct dwc2_hsotg *hsotg)
u32 intmsk;
/* Clear any pending OTG Interrupts */
- writel(0xffffffff, hsotg->regs + GOTGINT);
+ dwc2_writel(0xffffffff, hsotg->regs + GOTGINT);
/* Clear any pending interrupts */
- writel(0xffffffff, hsotg->regs + GINTSTS);
+ dwc2_writel(0xffffffff, hsotg->regs + GINTSTS);
/* Enable the interrupts in the GINTMSK */
intmsk = GINTSTS_MODEMIS | GINTSTS_OTGINT;
if (hsotg->core_params->dma_enable <= 0)
intmsk |= GINTSTS_RXFLVL;
+ if (hsotg->core_params->external_id_pin_ctl <= 0)
+ intmsk |= GINTSTS_CONIDSTSCHNG;
- intmsk |= GINTSTS_CONIDSTSCHNG | GINTSTS_WKUPINT | GINTSTS_USBSUSP |
+ intmsk |= GINTSTS_WKUPINT | GINTSTS_USBSUSP |
GINTSTS_SESSREQINT;
- writel(intmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(intmsk, hsotg->regs + GINTMSK);
}
/*
@@ -104,10 +471,10 @@ static void dwc2_init_fs_ls_pclk_sel(struct dwc2_hsotg *hsotg)
}
dev_dbg(hsotg->dev, "Initializing HCFG.FSLSPClkSel to %08x\n", val);
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
hcfg &= ~HCFG_FSLSPCLKSEL_MASK;
hcfg |= val << HCFG_FSLSPCLKSEL_SHIFT;
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
}
/*
@@ -125,7 +492,7 @@ static int dwc2_core_reset(struct dwc2_hsotg *hsotg)
/* Wait for AHB master IDLE state */
do {
usleep_range(20000, 40000);
- greset = readl(hsotg->regs + GRSTCTL);
+ greset = dwc2_readl(hsotg->regs + GRSTCTL);
if (++count > 50) {
dev_warn(hsotg->dev,
"%s() HANG! AHB Idle GRSTCTL=%0x\n",
@@ -137,10 +504,10 @@ static int dwc2_core_reset(struct dwc2_hsotg *hsotg)
/* Core Soft Reset */
count = 0;
greset |= GRSTCTL_CSFTRST;
- writel(greset, hsotg->regs + GRSTCTL);
+ dwc2_writel(greset, hsotg->regs + GRSTCTL);
do {
usleep_range(20000, 40000);
- greset = readl(hsotg->regs + GRSTCTL);
+ greset = dwc2_readl(hsotg->regs + GRSTCTL);
if (++count > 50) {
dev_warn(hsotg->dev,
"%s() HANG! Soft Reset GRSTCTL=%0x\n",
@@ -150,20 +517,20 @@ static int dwc2_core_reset(struct dwc2_hsotg *hsotg)
} while (greset & GRSTCTL_CSFTRST);
if (hsotg->dr_mode == USB_DR_MODE_HOST) {
- gusbcfg = readl(hsotg->regs + GUSBCFG);
+ gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
gusbcfg &= ~GUSBCFG_FORCEDEVMODE;
gusbcfg |= GUSBCFG_FORCEHOSTMODE;
- writel(gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
} else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) {
- gusbcfg = readl(hsotg->regs + GUSBCFG);
+ gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
gusbcfg |= GUSBCFG_FORCEDEVMODE;
- writel(gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
} else if (hsotg->dr_mode == USB_DR_MODE_OTG) {
- gusbcfg = readl(hsotg->regs + GUSBCFG);
+ gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
gusbcfg &= ~GUSBCFG_FORCEDEVMODE;
- writel(gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
}
/*
@@ -186,9 +553,9 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
*/
if (select_phy) {
dev_dbg(hsotg->dev, "FS PHY selected\n");
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg |= GUSBCFG_PHYSEL;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
/* Reset after a PHY select */
retval = dwc2_core_reset(hsotg);
@@ -211,18 +578,18 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
dev_dbg(hsotg->dev, "FS PHY enabling I2C\n");
/* Program GUSBCFG.OtgUtmiFsSel to I2C */
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg |= GUSBCFG_OTG_UTMI_FS_SEL;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
/* Program GI2CCTL.I2CEn */
- i2cctl = readl(hsotg->regs + GI2CCTL);
+ i2cctl = dwc2_readl(hsotg->regs + GI2CCTL);
i2cctl &= ~GI2CCTL_I2CDEVADDR_MASK;
i2cctl |= 1 << GI2CCTL_I2CDEVADDR_SHIFT;
i2cctl &= ~GI2CCTL_I2CEN;
- writel(i2cctl, hsotg->regs + GI2CCTL);
+ dwc2_writel(i2cctl, hsotg->regs + GI2CCTL);
i2cctl |= GI2CCTL_I2CEN;
- writel(i2cctl, hsotg->regs + GI2CCTL);
+ dwc2_writel(i2cctl, hsotg->regs + GI2CCTL);
}
return retval;
@@ -236,7 +603,7 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
if (!select_phy)
return 0;
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
/*
* HS PHY parameters. These parameters are preserved during soft reset
@@ -264,7 +631,7 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
break;
}
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
/* Reset after setting the PHY parameters */
retval = dwc2_core_reset(hsotg);
@@ -299,15 +666,15 @@ static int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED &&
hsotg->core_params->ulpi_fs_ls > 0) {
dev_dbg(hsotg->dev, "Setting ULPI FSLS\n");
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg |= GUSBCFG_ULPI_FS_LS;
usbcfg |= GUSBCFG_ULPI_CLK_SUSP_M;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
} else {
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg &= ~GUSBCFG_ULPI_FS_LS;
usbcfg &= ~GUSBCFG_ULPI_CLK_SUSP_M;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
}
return retval;
@@ -315,7 +682,7 @@ static int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
static int dwc2_gahbcfg_init(struct dwc2_hsotg *hsotg)
{
- u32 ahbcfg = readl(hsotg->regs + GAHBCFG);
+ u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
switch (hsotg->hw_params.arch) {
case GHWCFG2_EXT_DMA_ARCH:
@@ -354,7 +721,7 @@ static int dwc2_gahbcfg_init(struct dwc2_hsotg *hsotg)
if (hsotg->core_params->dma_enable > 0)
ahbcfg |= GAHBCFG_DMA_EN;
- writel(ahbcfg, hsotg->regs + GAHBCFG);
+ dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG);
return 0;
}
@@ -363,7 +730,7 @@ static void dwc2_gusbcfg_init(struct dwc2_hsotg *hsotg)
{
u32 usbcfg;
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg &= ~(GUSBCFG_HNPCAP | GUSBCFG_SRPCAP);
switch (hsotg->hw_params.op_mode) {
@@ -391,7 +758,7 @@ static void dwc2_gusbcfg_init(struct dwc2_hsotg *hsotg)
break;
}
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
}
/**
@@ -409,7 +776,7 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
dev_dbg(hsotg->dev, "%s(%p)\n", __func__, hsotg);
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
/* Set ULPI External VBUS bit if needed */
usbcfg &= ~GUSBCFG_ULPI_EXT_VBUS_DRV;
@@ -422,7 +789,7 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
if (hsotg->core_params->ts_dline > 0)
usbcfg |= GUSBCFG_TERMSELDLPULSE;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
/* Reset the Controller */
retval = dwc2_core_reset(hsotg);
@@ -448,11 +815,11 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq)
dwc2_gusbcfg_init(hsotg);
/* Program the GOTGCTL register */
- otgctl = readl(hsotg->regs + GOTGCTL);
+ otgctl = dwc2_readl(hsotg->regs + GOTGCTL);
otgctl &= ~GOTGCTL_OTGVER;
if (hsotg->core_params->otg_ver > 0)
otgctl |= GOTGCTL_OTGVER;
- writel(otgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(otgctl, hsotg->regs + GOTGCTL);
dev_dbg(hsotg->dev, "OTG VER PARAM: %d\n", hsotg->core_params->otg_ver);
/* Clear the SRP success bit for FS-I2c */
@@ -488,16 +855,16 @@ void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "%s()\n", __func__);
/* Disable all interrupts */
- writel(0, hsotg->regs + GINTMSK);
- writel(0, hsotg->regs + HAINTMSK);
+ dwc2_writel(0, hsotg->regs + GINTMSK);
+ dwc2_writel(0, hsotg->regs + HAINTMSK);
/* Enable the common interrupts */
dwc2_enable_common_interrupts(hsotg);
/* Enable host mode interrupts without disturbing common interrupts */
- intmsk = readl(hsotg->regs + GINTMSK);
+ intmsk = dwc2_readl(hsotg->regs + GINTMSK);
intmsk |= GINTSTS_DISCONNINT | GINTSTS_PRTINT | GINTSTS_HCHINT;
- writel(intmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(intmsk, hsotg->regs + GINTMSK);
}
/**
@@ -507,12 +874,12 @@ void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg)
*/
void dwc2_disable_host_interrupts(struct dwc2_hsotg *hsotg)
{
- u32 intmsk = readl(hsotg->regs + GINTMSK);
+ u32 intmsk = dwc2_readl(hsotg->regs + GINTMSK);
/* Disable host mode interrupts without disturbing common interrupts */
intmsk &= ~(GINTSTS_SOF | GINTSTS_PRTINT | GINTSTS_HCHINT |
- GINTSTS_PTXFEMP | GINTSTS_NPTXFEMP);
- writel(intmsk, hsotg->regs + GINTMSK);
+ GINTSTS_PTXFEMP | GINTSTS_NPTXFEMP | GINTSTS_DISCONNINT);
+ dwc2_writel(intmsk, hsotg->regs + GINTMSK);
}
/*
@@ -592,36 +959,37 @@ static void dwc2_config_fifos(struct dwc2_hsotg *hsotg)
dwc2_calculate_dynamic_fifo(hsotg);
/* Rx FIFO */
- grxfsiz = readl(hsotg->regs + GRXFSIZ);
+ grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ);
dev_dbg(hsotg->dev, "initial grxfsiz=%08x\n", grxfsiz);
grxfsiz &= ~GRXFSIZ_DEPTH_MASK;
grxfsiz |= params->host_rx_fifo_size <<
GRXFSIZ_DEPTH_SHIFT & GRXFSIZ_DEPTH_MASK;
- writel(grxfsiz, hsotg->regs + GRXFSIZ);
- dev_dbg(hsotg->dev, "new grxfsiz=%08x\n", readl(hsotg->regs + GRXFSIZ));
+ dwc2_writel(grxfsiz, hsotg->regs + GRXFSIZ);
+ dev_dbg(hsotg->dev, "new grxfsiz=%08x\n",
+ dwc2_readl(hsotg->regs + GRXFSIZ));
/* Non-periodic Tx FIFO */
dev_dbg(hsotg->dev, "initial gnptxfsiz=%08x\n",
- readl(hsotg->regs + GNPTXFSIZ));
+ dwc2_readl(hsotg->regs + GNPTXFSIZ));
nptxfsiz = params->host_nperio_tx_fifo_size <<
FIFOSIZE_DEPTH_SHIFT & FIFOSIZE_DEPTH_MASK;
nptxfsiz |= params->host_rx_fifo_size <<
FIFOSIZE_STARTADDR_SHIFT & FIFOSIZE_STARTADDR_MASK;
- writel(nptxfsiz, hsotg->regs + GNPTXFSIZ);
+ dwc2_writel(nptxfsiz, hsotg->regs + GNPTXFSIZ);
dev_dbg(hsotg->dev, "new gnptxfsiz=%08x\n",
- readl(hsotg->regs + GNPTXFSIZ));
+ dwc2_readl(hsotg->regs + GNPTXFSIZ));
/* Periodic Tx FIFO */
dev_dbg(hsotg->dev, "initial hptxfsiz=%08x\n",
- readl(hsotg->regs + HPTXFSIZ));
+ dwc2_readl(hsotg->regs + HPTXFSIZ));
hptxfsiz = params->host_perio_tx_fifo_size <<
FIFOSIZE_DEPTH_SHIFT & FIFOSIZE_DEPTH_MASK;
hptxfsiz |= (params->host_rx_fifo_size +
params->host_nperio_tx_fifo_size) <<
FIFOSIZE_STARTADDR_SHIFT & FIFOSIZE_STARTADDR_MASK;
- writel(hptxfsiz, hsotg->regs + HPTXFSIZ);
+ dwc2_writel(hptxfsiz, hsotg->regs + HPTXFSIZ);
dev_dbg(hsotg->dev, "new hptxfsiz=%08x\n",
- readl(hsotg->regs + HPTXFSIZ));
+ dwc2_readl(hsotg->regs + HPTXFSIZ));
if (hsotg->core_params->en_multiple_tx_fifo > 0 &&
hsotg->hw_params.snpsid <= DWC2_CORE_REV_2_94a) {
@@ -629,14 +997,14 @@ static void dwc2_config_fifos(struct dwc2_hsotg *hsotg)
* Global DFIFOCFG calculation for Host mode -
* include RxFIFO, NPTXFIFO and HPTXFIFO
*/
- dfifocfg = readl(hsotg->regs + GDFIFOCFG);
+ dfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG);
dfifocfg &= ~GDFIFOCFG_EPINFOBASE_MASK;
dfifocfg |= (params->host_rx_fifo_size +
params->host_nperio_tx_fifo_size +
params->host_perio_tx_fifo_size) <<
GDFIFOCFG_EPINFOBASE_SHIFT &
GDFIFOCFG_EPINFOBASE_MASK;
- writel(dfifocfg, hsotg->regs + GDFIFOCFG);
+ dwc2_writel(dfifocfg, hsotg->regs + GDFIFOCFG);
}
}
@@ -657,14 +1025,14 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "%s(%p)\n", __func__, hsotg);
/* Restart the Phy Clock */
- writel(0, hsotg->regs + PCGCTL);
+ dwc2_writel(0, hsotg->regs + PCGCTL);
/* Initialize Host Configuration Register */
dwc2_init_fs_ls_pclk_sel(hsotg);
if (hsotg->core_params->speed == DWC2_SPEED_PARAM_FULL) {
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
hcfg |= HCFG_FSLSSUPP;
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
}
/*
@@ -673,9 +1041,9 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
* and its value must not be changed during runtime.
*/
if (hsotg->core_params->reload_ctl > 0) {
- hfir = readl(hsotg->regs + HFIR);
+ hfir = dwc2_readl(hsotg->regs + HFIR);
hfir |= HFIR_RLDCTRL;
- writel(hfir, hsotg->regs + HFIR);
+ dwc2_writel(hfir, hsotg->regs + HFIR);
}
if (hsotg->core_params->dma_desc_enable > 0) {
@@ -691,9 +1059,9 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
"falling back to buffer DMA mode.\n");
hsotg->core_params->dma_desc_enable = 0;
} else {
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
hcfg |= HCFG_DESCDMA;
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
}
}
@@ -702,18 +1070,18 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
/* TODO - check this */
/* Clear Host Set HNP Enable in the OTG Control Register */
- otgctl = readl(hsotg->regs + GOTGCTL);
+ otgctl = dwc2_readl(hsotg->regs + GOTGCTL);
otgctl &= ~GOTGCTL_HSTSETHNPEN;
- writel(otgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(otgctl, hsotg->regs + GOTGCTL);
/* Make sure the FIFOs are flushed */
dwc2_flush_tx_fifo(hsotg, 0x10 /* all TX FIFOs */);
dwc2_flush_rx_fifo(hsotg);
/* Clear Host Set HNP Enable in the OTG Control Register */
- otgctl = readl(hsotg->regs + GOTGCTL);
+ otgctl = dwc2_readl(hsotg->regs + GOTGCTL);
otgctl &= ~GOTGCTL_HSTSETHNPEN;
- writel(otgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(otgctl, hsotg->regs + GOTGCTL);
if (hsotg->core_params->dma_desc_enable <= 0) {
int num_channels, i;
@@ -722,25 +1090,25 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
/* Flush out any leftover queued requests */
num_channels = hsotg->core_params->host_channels;
for (i = 0; i < num_channels; i++) {
- hcchar = readl(hsotg->regs + HCCHAR(i));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
hcchar &= ~HCCHAR_CHENA;
hcchar |= HCCHAR_CHDIS;
hcchar &= ~HCCHAR_EPDIR;
- writel(hcchar, hsotg->regs + HCCHAR(i));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(i));
}
/* Halt all channels to put them into a known state */
for (i = 0; i < num_channels; i++) {
int count = 0;
- hcchar = readl(hsotg->regs + HCCHAR(i));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
hcchar |= HCCHAR_CHENA | HCCHAR_CHDIS;
hcchar &= ~HCCHAR_EPDIR;
- writel(hcchar, hsotg->regs + HCCHAR(i));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(i));
dev_dbg(hsotg->dev, "%s: Halt channel %d\n",
__func__, i);
do {
- hcchar = readl(hsotg->regs + HCCHAR(i));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
if (++count > 1000) {
dev_err(hsotg->dev,
"Unable to clear enable on channel %d\n",
@@ -761,7 +1129,7 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
!!(hprt0 & HPRT0_PWR));
if (!(hprt0 & HPRT0_PWR)) {
hprt0 |= HPRT0_PWR;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
}
}
@@ -841,7 +1209,7 @@ static void dwc2_hc_enable_slave_ints(struct dwc2_hsotg *hsotg,
break;
}
- writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
+ dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "set HCINTMSK to %08x\n", hcintmsk);
}
@@ -878,7 +1246,7 @@ static void dwc2_hc_enable_dma_ints(struct dwc2_hsotg *hsotg,
}
}
- writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
+ dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "set HCINTMSK to %08x\n", hcintmsk);
}
@@ -899,16 +1267,16 @@ static void dwc2_hc_enable_ints(struct dwc2_hsotg *hsotg,
}
/* Enable the top level host channel interrupt */
- intmsk = readl(hsotg->regs + HAINTMSK);
+ intmsk = dwc2_readl(hsotg->regs + HAINTMSK);
intmsk |= 1 << chan->hc_num;
- writel(intmsk, hsotg->regs + HAINTMSK);
+ dwc2_writel(intmsk, hsotg->regs + HAINTMSK);
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "set HAINTMSK to %08x\n", intmsk);
/* Make sure host channel interrupts are enabled */
- intmsk = readl(hsotg->regs + GINTMSK);
+ intmsk = dwc2_readl(hsotg->regs + GINTMSK);
intmsk |= GINTSTS_HCHINT;
- writel(intmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(intmsk, hsotg->regs + GINTMSK);
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "set GINTMSK to %08x\n", intmsk);
}
@@ -937,7 +1305,7 @@ void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
/* Clear old interrupt conditions for this host channel */
hcintmsk = 0xffffffff;
hcintmsk &= ~HCINTMSK_RESERVED14_31;
- writel(hcintmsk, hsotg->regs + HCINT(hc_num));
+ dwc2_writel(hcintmsk, hsotg->regs + HCINT(hc_num));
/* Enable channel interrupts required for this transfer */
dwc2_hc_enable_ints(hsotg, chan);
@@ -954,7 +1322,7 @@ void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
hcchar |= HCCHAR_LSPDDEV;
hcchar |= chan->ep_type << HCCHAR_EPTYPE_SHIFT & HCCHAR_EPTYPE_MASK;
hcchar |= chan->max_packet << HCCHAR_MPS_SHIFT & HCCHAR_MPS_MASK;
- writel(hcchar, hsotg->regs + HCCHAR(hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(hc_num));
if (dbg_hc(chan)) {
dev_vdbg(hsotg->dev, "set HCCHAR(%d) to %08x\n",
hc_num, hcchar);
@@ -1008,7 +1376,7 @@ void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
}
}
- writel(hcsplt, hsotg->regs + HCSPLT(hc_num));
+ dwc2_writel(hcsplt, hsotg->regs + HCSPLT(hc_num));
}
/**
@@ -1060,14 +1428,14 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
u32 hcintmsk = HCINTMSK_CHHLTD;
dev_vdbg(hsotg->dev, "dequeue/error\n");
- writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
+ dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num));
/*
* Make sure no other interrupts besides halt are currently
* pending. Handling another interrupt could cause a crash due
* to the QTD and QH state.
*/
- writel(~hcintmsk, hsotg->regs + HCINT(chan->hc_num));
+ dwc2_writel(~hcintmsk, hsotg->regs + HCINT(chan->hc_num));
/*
* Make sure the halt status is set to URB_DEQUEUE or AHB_ERR
@@ -1076,7 +1444,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
*/
chan->halt_status = halt_status;
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
if (!(hcchar & HCCHAR_CHENA)) {
/*
* The channel is either already halted or it hasn't
@@ -1104,7 +1472,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
return;
}
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
/* No need to set the bit in DDMA for disabling the channel */
/* TODO check it everywhere channel is disabled */
@@ -1127,7 +1495,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
if (chan->ep_type == USB_ENDPOINT_XFER_CONTROL ||
chan->ep_type == USB_ENDPOINT_XFER_BULK) {
dev_vdbg(hsotg->dev, "control/bulk\n");
- nptxsts = readl(hsotg->regs + GNPTXSTS);
+ nptxsts = dwc2_readl(hsotg->regs + GNPTXSTS);
if ((nptxsts & TXSTS_QSPCAVAIL_MASK) == 0) {
dev_vdbg(hsotg->dev, "Disabling channel\n");
hcchar &= ~HCCHAR_CHENA;
@@ -1135,7 +1503,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
} else {
if (dbg_perio())
dev_vdbg(hsotg->dev, "isoc/intr\n");
- hptxsts = readl(hsotg->regs + HPTXSTS);
+ hptxsts = dwc2_readl(hsotg->regs + HPTXSTS);
if ((hptxsts & TXSTS_QSPCAVAIL_MASK) == 0 ||
hsotg->queuing_high_bandwidth) {
if (dbg_perio())
@@ -1148,7 +1516,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan,
dev_vdbg(hsotg->dev, "DMA enabled\n");
}
- writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
chan->halt_status = halt_status;
if (hcchar & HCCHAR_CHENA) {
@@ -1195,10 +1563,10 @@ void dwc2_hc_cleanup(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
* Clear channel interrupt enables and any unhandled channel interrupt
* conditions
*/
- writel(0, hsotg->regs + HCINTMSK(chan->hc_num));
+ dwc2_writel(0, hsotg->regs + HCINTMSK(chan->hc_num));
hcintmsk = 0xffffffff;
hcintmsk &= ~HCINTMSK_RESERVED14_31;
- writel(hcintmsk, hsotg->regs + HCINT(chan->hc_num));
+ dwc2_writel(hcintmsk, hsotg->regs + HCINT(chan->hc_num));
}
/**
@@ -1284,13 +1652,13 @@ static void dwc2_hc_write_packet(struct dwc2_hsotg *hsotg,
if (((unsigned long)data_buf & 0x3) == 0) {
/* xfer_buf is DWORD aligned */
for (i = 0; i < dword_count; i++, data_buf++)
- writel(*data_buf, data_fifo);
+ dwc2_writel(*data_buf, data_fifo);
} else {
/* xfer_buf is not DWORD aligned */
for (i = 0; i < dword_count; i++, data_buf++) {
u32 data = data_buf[0] | data_buf[1] << 8 |
data_buf[2] << 16 | data_buf[3] << 24;
- writel(data, data_fifo);
+ dwc2_writel(data, data_fifo);
}
}
@@ -1443,7 +1811,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
hctsiz |= num_packets << TSIZ_PKTCNT_SHIFT & TSIZ_PKTCNT_MASK;
hctsiz |= chan->data_pid_start << TSIZ_SC_MC_PID_SHIFT &
TSIZ_SC_MC_PID_MASK;
- writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
+ dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
if (dbg_hc(chan)) {
dev_vdbg(hsotg->dev, "Wrote %08x to HCTSIZ(%d)\n",
hctsiz, chan->hc_num);
@@ -1471,7 +1839,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
} else {
dma_addr = chan->xfer_dma;
}
- writel((u32)dma_addr, hsotg->regs + HCDMA(chan->hc_num));
+ dwc2_writel((u32)dma_addr, hsotg->regs + HCDMA(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "Wrote %08lx to HCDMA(%d)\n",
(unsigned long)dma_addr, chan->hc_num);
@@ -1479,13 +1847,13 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
/* Start the split */
if (chan->do_split) {
- u32 hcsplt = readl(hsotg->regs + HCSPLT(chan->hc_num));
+ u32 hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chan->hc_num));
hcsplt |= HCSPLT_SPLTENA;
- writel(hcsplt, hsotg->regs + HCSPLT(chan->hc_num));
+ dwc2_writel(hcsplt, hsotg->regs + HCSPLT(chan->hc_num));
}
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
hcchar &= ~HCCHAR_MULTICNT_MASK;
hcchar |= chan->multi_count << HCCHAR_MULTICNT_SHIFT &
HCCHAR_MULTICNT_MASK;
@@ -1505,7 +1873,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
(hcchar & HCCHAR_MULTICNT_MASK) >>
HCCHAR_MULTICNT_SHIFT);
- writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "Wrote %08x to HCCHAR(%d)\n", hcchar,
chan->hc_num);
@@ -1564,18 +1932,18 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
dev_vdbg(hsotg->dev, " NTD: %d\n", chan->ntd - 1);
}
- writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
+ dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
hc_dma = (u32)chan->desc_list_addr & HCDMA_DMA_ADDR_MASK;
/* Always start from first descriptor */
hc_dma &= ~HCDMA_CTD_MASK;
- writel(hc_dma, hsotg->regs + HCDMA(chan->hc_num));
+ dwc2_writel(hc_dma, hsotg->regs + HCDMA(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "Wrote %08x to HCDMA(%d)\n",
hc_dma, chan->hc_num);
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
hcchar &= ~HCCHAR_MULTICNT_MASK;
hcchar |= chan->multi_count << HCCHAR_MULTICNT_SHIFT &
HCCHAR_MULTICNT_MASK;
@@ -1594,7 +1962,7 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
(hcchar & HCCHAR_MULTICNT_MASK) >>
HCCHAR_MULTICNT_SHIFT);
- writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "Wrote %08x to HCCHAR(%d)\n", hcchar,
chan->hc_num);
@@ -1651,7 +2019,7 @@ int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg,
* transfer completes, the extra requests for the channel will
* be flushed.
*/
- u32 hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ u32 hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
dwc2_hc_set_even_odd_frame(hsotg, chan, &hcchar);
hcchar |= HCCHAR_CHENA;
@@ -1659,7 +2027,7 @@ int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg,
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, " IN xfer: hcchar = 0x%08x\n",
hcchar);
- writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
chan->requests++;
return 1;
}
@@ -1669,8 +2037,8 @@ int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg,
if (chan->xfer_count < chan->xfer_len) {
if (chan->ep_type == USB_ENDPOINT_XFER_INT ||
chan->ep_type == USB_ENDPOINT_XFER_ISOC) {
- u32 hcchar = readl(hsotg->regs +
- HCCHAR(chan->hc_num));
+ u32 hcchar = dwc2_readl(hsotg->regs +
+ HCCHAR(chan->hc_num));
dwc2_hc_set_even_odd_frame(hsotg, chan,
&hcchar);
@@ -1706,12 +2074,12 @@ void dwc2_hc_do_ping(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan)
hctsiz = TSIZ_DOPNG;
hctsiz |= 1 << TSIZ_PKTCNT_SHIFT;
- writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
+ dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num));
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
hcchar |= HCCHAR_CHENA;
hcchar &= ~HCCHAR_CHDIS;
- writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num));
}
/**
@@ -1730,8 +2098,8 @@ u32 dwc2_calc_frame_interval(struct dwc2_hsotg *hsotg)
u32 hprt0;
int clock = 60; /* default value */
- usbcfg = readl(hsotg->regs + GUSBCFG);
- hprt0 = readl(hsotg->regs + HPRT0);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
+ hprt0 = dwc2_readl(hsotg->regs + HPRT0);
if (!(usbcfg & GUSBCFG_PHYSEL) && (usbcfg & GUSBCFG_ULPI_UTMI_SEL) &&
!(usbcfg & GUSBCFG_PHYIF16))
@@ -1787,7 +2155,7 @@ void dwc2_read_packet(struct dwc2_hsotg *hsotg, u8 *dest, u16 bytes)
dev_vdbg(hsotg->dev, "%s(%p,%p,%d)\n", __func__, hsotg, dest, bytes);
for (i = 0; i < word_count; i++, data_buf++)
- *data_buf = readl(fifo);
+ *data_buf = dwc2_readl(fifo);
}
/**
@@ -1807,56 +2175,56 @@ void dwc2_dump_host_registers(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "Host Global Registers\n");
addr = hsotg->regs + HCFG;
dev_dbg(hsotg->dev, "HCFG @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HFIR;
dev_dbg(hsotg->dev, "HFIR @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HFNUM;
dev_dbg(hsotg->dev, "HFNUM @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HPTXSTS;
dev_dbg(hsotg->dev, "HPTXSTS @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HAINT;
dev_dbg(hsotg->dev, "HAINT @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HAINTMSK;
dev_dbg(hsotg->dev, "HAINTMSK @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
if (hsotg->core_params->dma_desc_enable > 0) {
addr = hsotg->regs + HFLBADDR;
dev_dbg(hsotg->dev, "HFLBADDR @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
}
addr = hsotg->regs + HPRT0;
dev_dbg(hsotg->dev, "HPRT0 @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
for (i = 0; i < hsotg->core_params->host_channels; i++) {
dev_dbg(hsotg->dev, "Host Channel %d Specific Registers\n", i);
addr = hsotg->regs + HCCHAR(i);
dev_dbg(hsotg->dev, "HCCHAR @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HCSPLT(i);
dev_dbg(hsotg->dev, "HCSPLT @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HCINT(i);
dev_dbg(hsotg->dev, "HCINT @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HCINTMSK(i);
dev_dbg(hsotg->dev, "HCINTMSK @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HCTSIZ(i);
dev_dbg(hsotg->dev, "HCTSIZ @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HCDMA(i);
dev_dbg(hsotg->dev, "HCDMA @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
if (hsotg->core_params->dma_desc_enable > 0) {
addr = hsotg->regs + HCDMAB(i);
dev_dbg(hsotg->dev, "HCDMAB @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
}
}
#endif
@@ -1878,80 +2246,80 @@ void dwc2_dump_global_registers(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "Core Global Registers\n");
addr = hsotg->regs + GOTGCTL;
dev_dbg(hsotg->dev, "GOTGCTL @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GOTGINT;
dev_dbg(hsotg->dev, "GOTGINT @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GAHBCFG;
dev_dbg(hsotg->dev, "GAHBCFG @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GUSBCFG;
dev_dbg(hsotg->dev, "GUSBCFG @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GRSTCTL;
dev_dbg(hsotg->dev, "GRSTCTL @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GINTSTS;
dev_dbg(hsotg->dev, "GINTSTS @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GINTMSK;
dev_dbg(hsotg->dev, "GINTMSK @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GRXSTSR;
dev_dbg(hsotg->dev, "GRXSTSR @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GRXFSIZ;
dev_dbg(hsotg->dev, "GRXFSIZ @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GNPTXFSIZ;
dev_dbg(hsotg->dev, "GNPTXFSIZ @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GNPTXSTS;
dev_dbg(hsotg->dev, "GNPTXSTS @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GI2CCTL;
dev_dbg(hsotg->dev, "GI2CCTL @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GPVNDCTL;
dev_dbg(hsotg->dev, "GPVNDCTL @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GGPIO;
dev_dbg(hsotg->dev, "GGPIO @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GUID;
dev_dbg(hsotg->dev, "GUID @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GSNPSID;
dev_dbg(hsotg->dev, "GSNPSID @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GHWCFG1;
dev_dbg(hsotg->dev, "GHWCFG1 @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GHWCFG2;
dev_dbg(hsotg->dev, "GHWCFG2 @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GHWCFG3;
dev_dbg(hsotg->dev, "GHWCFG3 @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GHWCFG4;
dev_dbg(hsotg->dev, "GHWCFG4 @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GLPMCFG;
dev_dbg(hsotg->dev, "GLPMCFG @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GPWRDN;
dev_dbg(hsotg->dev, "GPWRDN @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + GDFIFOCFG;
dev_dbg(hsotg->dev, "GDFIFOCFG @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + HPTXFSIZ;
dev_dbg(hsotg->dev, "HPTXFSIZ @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
addr = hsotg->regs + PCGCTL;
dev_dbg(hsotg->dev, "PCGCTL @0x%08lX : 0x%08X\n",
- (unsigned long)addr, readl(addr));
+ (unsigned long)addr, dwc2_readl(addr));
#endif
}
@@ -1970,15 +2338,15 @@ void dwc2_flush_tx_fifo(struct dwc2_hsotg *hsotg, const int num)
greset = GRSTCTL_TXFFLSH;
greset |= num << GRSTCTL_TXFNUM_SHIFT & GRSTCTL_TXFNUM_MASK;
- writel(greset, hsotg->regs + GRSTCTL);
+ dwc2_writel(greset, hsotg->regs + GRSTCTL);
do {
- greset = readl(hsotg->regs + GRSTCTL);
+ greset = dwc2_readl(hsotg->regs + GRSTCTL);
if (++count > 10000) {
dev_warn(hsotg->dev,
"%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n",
__func__, greset,
- readl(hsotg->regs + GNPTXSTS));
+ dwc2_readl(hsotg->regs + GNPTXSTS));
break;
}
udelay(1);
@@ -2001,10 +2369,10 @@ void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg)
dev_vdbg(hsotg->dev, "%s()\n", __func__);
greset = GRSTCTL_RXFFLSH;
- writel(greset, hsotg->regs + GRSTCTL);
+ dwc2_writel(greset, hsotg->regs + GRSTCTL);
do {
- greset = readl(hsotg->regs + GRSTCTL);
+ greset = dwc2_readl(hsotg->regs + GRSTCTL);
if (++count > 10000) {
dev_warn(hsotg->dev, "%s() HANG! GRSTCTL=%0x\n",
__func__, greset);
@@ -2602,6 +2970,40 @@ static void dwc2_set_param_uframe_sched(struct dwc2_hsotg *hsotg, int val)
hsotg->core_params->uframe_sched = val;
}
+static void dwc2_set_param_external_id_pin_ctl(struct dwc2_hsotg *hsotg,
+ int val)
+{
+ if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) {
+ if (val >= 0) {
+ dev_err(hsotg->dev,
+ "'%d' invalid for parameter external_id_pin_ctl\n",
+ val);
+ dev_err(hsotg->dev, "external_id_pin_ctl must be 0 or 1\n");
+ }
+ val = 0;
+ dev_dbg(hsotg->dev, "Setting external_id_pin_ctl to %d\n", val);
+ }
+
+ hsotg->core_params->external_id_pin_ctl = val;
+}
+
+static void dwc2_set_param_hibernation(struct dwc2_hsotg *hsotg,
+ int val)
+{
+ if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) {
+ if (val >= 0) {
+ dev_err(hsotg->dev,
+ "'%d' invalid for parameter hibernation\n",
+ val);
+ dev_err(hsotg->dev, "hibernation must be 0 or 1\n");
+ }
+ val = 0;
+ dev_dbg(hsotg->dev, "Setting hibernation to %d\n", val);
+ }
+
+ hsotg->core_params->hibernation = val;
+}
+
/*
* This function is called during module intialization to pass module parameters
* for the DWC_otg core.
@@ -2646,6 +3048,8 @@ void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
dwc2_set_param_ahbcfg(hsotg, params->ahbcfg);
dwc2_set_param_otg_ver(hsotg, params->otg_ver);
dwc2_set_param_uframe_sched(hsotg, params->uframe_sched);
+ dwc2_set_param_external_id_pin_ctl(hsotg, params->external_id_pin_ctl);
+ dwc2_set_param_hibernation(hsotg, params->hibernation);
}
/**
@@ -2666,7 +3070,7 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
* 0x45f42xxx or 0x45f43xxx, which corresponds to either "OT2" or "OT3",
* as in "OTG version 2.xx" or "OTG version 3.xx".
*/
- hw->snpsid = readl(hsotg->regs + GSNPSID);
+ hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID);
if ((hw->snpsid & 0xfffff000) != 0x4f542000 &&
(hw->snpsid & 0xfffff000) != 0x4f543000) {
dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n",
@@ -2678,11 +3082,11 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf,
hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid);
- hwcfg1 = readl(hsotg->regs + GHWCFG1);
- hwcfg2 = readl(hsotg->regs + GHWCFG2);
- hwcfg3 = readl(hsotg->regs + GHWCFG3);
- hwcfg4 = readl(hsotg->regs + GHWCFG4);
- grxfsiz = readl(hsotg->regs + GRXFSIZ);
+ hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1);
+ hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2);
+ hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3);
+ hwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4);
+ grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ);
dev_dbg(hsotg->dev, "hwcfg1=%08x\n", hwcfg1);
dev_dbg(hsotg->dev, "hwcfg2=%08x\n", hwcfg2);
@@ -2691,18 +3095,18 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "grxfsiz=%08x\n", grxfsiz);
/* Force host mode to get HPTXFSIZ / GNPTXFSIZ exact power on value */
- gusbcfg = readl(hsotg->regs + GUSBCFG);
+ gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
gusbcfg |= GUSBCFG_FORCEHOSTMODE;
- writel(gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
usleep_range(100000, 150000);
- gnptxfsiz = readl(hsotg->regs + GNPTXFSIZ);
- hptxfsiz = readl(hsotg->regs + HPTXFSIZ);
+ gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ);
+ hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ);
dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz);
dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz);
- gusbcfg = readl(hsotg->regs + GUSBCFG);
+ gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
gusbcfg &= ~GUSBCFG_FORCEHOSTMODE;
- writel(gusbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
usleep_range(100000, 150000);
/* hwcfg2 */
@@ -2779,7 +3183,7 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
hw->hs_phy_type);
dev_dbg(hsotg->dev, " fs_phy_type=%d\n",
hw->fs_phy_type);
- dev_dbg(hsotg->dev, " utmi_phy_data_wdith=%d\n",
+ dev_dbg(hsotg->dev, " utmi_phy_data_width=%d\n",
hw->utmi_phy_data_width);
dev_dbg(hsotg->dev, " num_dev_ep=%d\n",
hw->num_dev_ep);
@@ -2814,6 +3218,22 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
return 0;
}
+/*
+ * Sets all parameters to the given value.
+ *
+ * Assumes that the dwc2_core_params struct contains only integers.
+ */
+void dwc2_set_all_params(struct dwc2_core_params *params, int value)
+{
+ int *p = (int *)params;
+ size_t size = sizeof(*params) / sizeof(*p);
+ int i;
+
+ for (i = 0; i < size; i++)
+ p[i] = value;
+}
+
+
u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg)
{
return hsotg->core_params->otg_ver == 1 ? 0x0200 : 0x0103;
@@ -2821,7 +3241,7 @@ u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg)
bool dwc2_is_controller_alive(struct dwc2_hsotg *hsotg)
{
- if (readl(hsotg->regs + GSNPSID) == 0xffffffff)
+ if (dwc2_readl(hsotg->regs + GSNPSID) == 0xffffffff)
return false;
else
return true;
@@ -2835,10 +3255,10 @@ bool dwc2_is_controller_alive(struct dwc2_hsotg *hsotg)
*/
void dwc2_enable_global_interrupts(struct dwc2_hsotg *hsotg)
{
- u32 ahbcfg = readl(hsotg->regs + GAHBCFG);
+ u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
ahbcfg |= GAHBCFG_GLBL_INTR_EN;
- writel(ahbcfg, hsotg->regs + GAHBCFG);
+ dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG);
}
/**
@@ -2849,10 +3269,10 @@ void dwc2_enable_global_interrupts(struct dwc2_hsotg *hsotg)
*/
void dwc2_disable_global_interrupts(struct dwc2_hsotg *hsotg)
{
- u32 ahbcfg = readl(hsotg->regs + GAHBCFG);
+ u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
ahbcfg &= ~GAHBCFG_GLBL_INTR_EN;
- writel(ahbcfg, hsotg->regs + GAHBCFG);
+ dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG);
}
MODULE_DESCRIPTION("DESIGNWARE HS OTG Core");
diff --git a/kernel/drivers/usb/dwc2/core.h b/kernel/drivers/usb/dwc2/core.h
index 836c012c7..a66d3cb62 100644
--- a/kernel/drivers/usb/dwc2/core.h
+++ b/kernel/drivers/usb/dwc2/core.h
@@ -44,22 +44,38 @@
#include <linux/usb/phy.h>
#include "hw.h"
-#ifdef DWC2_LOG_WRITES
-static inline void do_write(u32 value, void *addr)
+static inline u32 dwc2_readl(const void __iomem *addr)
{
- writel(value, addr);
- pr_info("INFO:: wrote %08x to %p\n", value, addr);
+ u32 value = __raw_readl(addr);
+
+ /* In order to preserve endianness __raw_* operation is used. Therefore
+ * a barrier is needed to ensure IO access is not re-ordered across
+ * reads or writes
+ */
+ mb();
+ return value;
}
-#undef writel
-#define writel(v, a) do_write(v, a)
+static inline void dwc2_writel(u32 value, void __iomem *addr)
+{
+ __raw_writel(value, addr);
+
+ /*
+ * In order to preserve endianness __raw_* operation is used. Therefore
+ * a barrier is needed to ensure IO access is not re-ordered across
+ * reads or writes
+ */
+ mb();
+#ifdef DWC2_LOG_WRITES
+ pr_info("INFO:: wrote %08x to %p\n", value, addr);
#endif
+}
/* Maximum number of Endpoints/HostChannels */
#define MAX_EPS_CHANNELS 16
-/* s3c-hsotg declarations */
-static const char * const s3c_hsotg_supply_names[] = {
+/* dwc2-hsotg declarations */
+static const char * const dwc2_hsotg_supply_names[] = {
"vusb_d", /* digital USB supply, 1.2V */
"vusb_a", /* analog USB supply, 1.1V */
};
@@ -85,10 +101,10 @@ static const char * const s3c_hsotg_supply_names[] = {
#define EP0_MPS_LIMIT 64
struct dwc2_hsotg;
-struct s3c_hsotg_req;
+struct dwc2_hsotg_req;
/**
- * struct s3c_hsotg_ep - driver endpoint definition.
+ * struct dwc2_hsotg_ep - driver endpoint definition.
* @ep: The gadget layer representation of the endpoint.
* @name: The driver generated name for the endpoint.
* @queue: Queue of requests for this endpoint.
@@ -127,11 +143,11 @@ struct s3c_hsotg_req;
* as in shared-fifo mode periodic in acts like a single-frame packet
* buffer than a fifo)
*/
-struct s3c_hsotg_ep {
+struct dwc2_hsotg_ep {
struct usb_ep ep;
struct list_head queue;
struct dwc2_hsotg *parent;
- struct s3c_hsotg_req *req;
+ struct dwc2_hsotg_req *req;
struct dentry *debugfs;
unsigned long total_data;
@@ -150,17 +166,18 @@ struct s3c_hsotg_ep {
unsigned int periodic:1;
unsigned int isochronous:1;
unsigned int send_zlp:1;
+ unsigned int has_correct_parity:1;
char name[10];
};
/**
- * struct s3c_hsotg_req - data transfer request
+ * struct dwc2_hsotg_req - data transfer request
* @req: The USB gadget request
* @queue: The list of requests for the endpoint this is queued for.
* @saved_req_buf: variable to save req.buf when bounce buffers are used.
*/
-struct s3c_hsotg_req {
+struct dwc2_hsotg_req {
struct usb_request req;
struct list_head queue;
void *saved_req_buf;
@@ -331,6 +348,17 @@ enum dwc2_ep0_state {
* by the driver and are ignored in this
* configuration value.
* @uframe_sched: True to enable the microframe scheduler
+ * @external_id_pin_ctl: Specifies whether ID pin is handled externally.
+ * Disable CONIDSTSCHNG controller interrupt in such
+ * case.
+ * 0 - No (default)
+ * 1 - Yes
+ * @hibernation: Specifies whether the controller support hibernation.
+ * If hibernation is enabled, the controller will enter
+ * hibernation in both peripheral and host mode when
+ * needed.
+ * 0 - No (default)
+ * 1 - Yes
*
* The following parameters may be specified when starting the module. These
* parameters define how the DWC_otg controller should be configured. A
@@ -368,6 +396,8 @@ struct dwc2_core_params {
int reload_ctl;
int ahbcfg;
int uframe_sched;
+ int external_id_pin_ctl;
+ int hibernation;
};
/**
@@ -452,6 +482,85 @@ struct dwc2_hw_params {
#define DWC2_CTRL_BUFF_SIZE 8
/**
+ * struct dwc2_gregs_backup - Holds global registers state before entering partial
+ * power down
+ * @gotgctl: Backup of GOTGCTL register
+ * @gintmsk: Backup of GINTMSK register
+ * @gahbcfg: Backup of GAHBCFG register
+ * @gusbcfg: Backup of GUSBCFG register
+ * @grxfsiz: Backup of GRXFSIZ register
+ * @gnptxfsiz: Backup of GNPTXFSIZ register
+ * @gi2cctl: Backup of GI2CCTL register
+ * @hptxfsiz: Backup of HPTXFSIZ register
+ * @gdfifocfg: Backup of GDFIFOCFG register
+ * @dtxfsiz: Backup of DTXFSIZ registers for each endpoint
+ * @gpwrdn: Backup of GPWRDN register
+ */
+struct dwc2_gregs_backup {
+ u32 gotgctl;
+ u32 gintmsk;
+ u32 gahbcfg;
+ u32 gusbcfg;
+ u32 grxfsiz;
+ u32 gnptxfsiz;
+ u32 gi2cctl;
+ u32 hptxfsiz;
+ u32 pcgcctl;
+ u32 gdfifocfg;
+ u32 dtxfsiz[MAX_EPS_CHANNELS];
+ u32 gpwrdn;
+ bool valid;
+};
+
+/**
+ * struct dwc2_dregs_backup - Holds device registers state before entering partial
+ * power down
+ * @dcfg: Backup of DCFG register
+ * @dctl: Backup of DCTL register
+ * @daintmsk: Backup of DAINTMSK register
+ * @diepmsk: Backup of DIEPMSK register
+ * @doepmsk: Backup of DOEPMSK register
+ * @diepctl: Backup of DIEPCTL register
+ * @dieptsiz: Backup of DIEPTSIZ register
+ * @diepdma: Backup of DIEPDMA register
+ * @doepctl: Backup of DOEPCTL register
+ * @doeptsiz: Backup of DOEPTSIZ register
+ * @doepdma: Backup of DOEPDMA register
+ */
+struct dwc2_dregs_backup {
+ u32 dcfg;
+ u32 dctl;
+ u32 daintmsk;
+ u32 diepmsk;
+ u32 doepmsk;
+ u32 diepctl[MAX_EPS_CHANNELS];
+ u32 dieptsiz[MAX_EPS_CHANNELS];
+ u32 diepdma[MAX_EPS_CHANNELS];
+ u32 doepctl[MAX_EPS_CHANNELS];
+ u32 doeptsiz[MAX_EPS_CHANNELS];
+ u32 doepdma[MAX_EPS_CHANNELS];
+ bool valid;
+};
+
+/**
+ * struct dwc2_hregs_backup - Holds host registers state before entering partial
+ * power down
+ * @hcfg: Backup of HCFG register
+ * @haintmsk: Backup of HAINTMSK register
+ * @hcintmsk: Backup of HCINTMSK register
+ * @hptr0: Backup of HPTR0 register
+ * @hfir: Backup of HFIR register
+ */
+struct dwc2_hregs_backup {
+ u32 hcfg;
+ u32 haintmsk;
+ u32 hcintmsk[MAX_EPS_CHANNELS];
+ u32 hprt0;
+ u32 hfir;
+ bool valid;
+};
+
+/**
* struct dwc2_hsotg - Holds the state of the driver, including the non-periodic
* and periodic schedules
*
@@ -470,6 +579,15 @@ struct dwc2_hw_params {
* - USB_DR_MODE_PERIPHERAL
* - USB_DR_MODE_HOST
* - USB_DR_MODE_OTG
+ * @hcd_enabled Host mode sub-driver initialization indicator.
+ * @gadget_enabled Peripheral mode sub-driver initialization indicator.
+ * @ll_hw_enabled Status of low-level hardware resources.
+ * @phy: The otg phy transceiver structure for phy control.
+ * @uphy: The otg phy transceiver structure for old USB phy control.
+ * @plat: The platform specific configuration data. This can be removed once
+ * all SoCs support usb transceiver.
+ * @supplies: Definition of USB power supplies
+ * @phyif: PHY interface width
* @lock: Spinlock that protects all the driver data structures
* @priv: Stores a pointer to the struct usb_hcd
* @queuing_high_bandwidth: True if multiple packets of a high-bandwidth
@@ -481,6 +599,9 @@ struct dwc2_hw_params {
* interrupt
* @wkp_timer: Timer object for handling Wakeup Detected interrupt
* @lx_state: Lx state of connected device
+ * @gregs_backup: Backup of global registers during suspend
+ * @dregs_backup: Backup of device registers during suspend
+ * @hregs_backup: Backup of host registers during suspend
*
* These are for host mode:
*
@@ -559,12 +680,6 @@ struct dwc2_hw_params {
* These are for peripheral mode:
*
* @driver: USB gadget driver
- * @phy: The otg phy transceiver structure for phy control.
- * @uphy: The otg phy transceiver structure for old USB phy control.
- * @plat: The platform specific configuration data. This can be removed once
- * all SoCs support usb transceiver.
- * @supplies: Definition of USB power supplies
- * @phyif: PHY interface width
* @dedicated_fifos: Set if the hardware has dedicated IN-EP fifos.
* @num_of_eps: Number of available EPs (excluding EP0)
* @debug_root: Root directrory for debugfs.
@@ -577,7 +692,6 @@ struct dwc2_hw_params {
* @ctrl_req: Request for EP0 control packets.
* @ep0_state: EP0 control transfers state
* @test_mode: USB test mode requested by the host
- * @last_rst: Time of last reset
* @eps: The endpoints being supplied to the gadget framework
* @g_using_dma: Indicate if dma usage is enabled
* @g_rx_fifo_sz: Contains rx fifo size value
@@ -595,13 +709,15 @@ struct dwc2_hsotg {
enum usb_dr_mode dr_mode;
unsigned int hcd_enabled:1;
unsigned int gadget_enabled:1;
+ unsigned int ll_hw_enabled:1;
struct phy *phy;
struct usb_phy *uphy;
- struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsotg_supply_names)];
+ struct dwc2_hsotg_plat *plat;
+ struct regulator_bulk_data supplies[ARRAY_SIZE(dwc2_hsotg_supply_names)];
+ u32 phyif;
spinlock_t lock;
- struct mutex init_mutex;
void *priv;
int irq;
struct clk *clk;
@@ -613,11 +729,12 @@ struct dwc2_hsotg {
struct work_struct wf_otg;
struct timer_list wkp_timer;
enum dwc2_lx_state lx_state;
+ struct dwc2_gregs_backup gr_backup;
+ struct dwc2_dregs_backup dr_backup;
+ struct dwc2_hregs_backup hr_backup;
struct dentry *debug_root;
- struct dentry *debug_file;
- struct dentry *debug_testmode;
- struct dentry *debug_fifo;
+ struct debugfs_regset32 *regset;
/* DWC OTG HW Release versions */
#define DWC2_CORE_REV_2_71a 0x4f54271a
@@ -652,6 +769,7 @@ struct dwc2_hsotg {
u16 frame_usecs[8];
u16 frame_number;
u16 periodic_qh_count;
+ bool bus_suspended;
#ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
#define FRAME_NUM_ARRAY_SIZE 1000
@@ -700,9 +818,6 @@ struct dwc2_hsotg {
#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
/* Gadget structures */
struct usb_gadget_driver *driver;
- struct s3c_hsotg_plat *plat;
-
- u32 phyif;
int fifo_mem;
unsigned int dedicated_fifos:1;
unsigned char num_of_eps;
@@ -718,9 +833,8 @@ struct dwc2_hsotg {
struct usb_gadget gadget;
unsigned int enabled:1;
unsigned int connected:1;
- unsigned long last_rst;
- struct s3c_hsotg_ep *eps_in[MAX_EPS_CHANNELS];
- struct s3c_hsotg_ep *eps_out[MAX_EPS_CHANNELS];
+ struct dwc2_hsotg_ep *eps_in[MAX_EPS_CHANNELS];
+ struct dwc2_hsotg_ep *eps_out[MAX_EPS_CHANNELS];
u32 g_using_dma;
u32 g_rx_fifo_sz;
u32 g_np_g_tx_fifo_sz;
@@ -751,6 +865,8 @@ enum dwc2_halt_status {
* and the DWC_otg controller
*/
extern void dwc2_core_host_init(struct dwc2_hsotg *hsotg);
+extern int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg);
+extern int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore);
/*
* Host core Functions.
@@ -983,6 +1099,16 @@ extern void dwc2_set_param_ahbcfg(struct dwc2_hsotg *hsotg, int val);
extern void dwc2_set_param_otg_ver(struct dwc2_hsotg *hsotg, int val);
+extern void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
+ const struct dwc2_core_params *params);
+
+extern void dwc2_set_all_params(struct dwc2_core_params *params, int value);
+
+extern int dwc2_get_hwparams(struct dwc2_hsotg *hsotg);
+
+extern int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg);
+extern int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg);
+
/*
* Dump core registers and SPRAM
*/
@@ -997,27 +1123,33 @@ extern u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg);
/* Gadget defines */
#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
-extern int s3c_hsotg_remove(struct dwc2_hsotg *hsotg);
-extern int s3c_hsotg_suspend(struct dwc2_hsotg *dwc2);
-extern int s3c_hsotg_resume(struct dwc2_hsotg *dwc2);
+extern int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg);
+extern int dwc2_hsotg_suspend(struct dwc2_hsotg *dwc2);
+extern int dwc2_hsotg_resume(struct dwc2_hsotg *dwc2);
extern int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq);
-extern void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2,
+extern void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2,
bool reset);
-extern void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg);
-extern void s3c_hsotg_disconnect(struct dwc2_hsotg *dwc2);
+extern void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg);
+extern void dwc2_hsotg_disconnect(struct dwc2_hsotg *dwc2);
+extern int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode);
+#define dwc2_is_device_connected(hsotg) (hsotg->connected)
#else
-static inline int s3c_hsotg_remove(struct dwc2_hsotg *dwc2)
+static inline int dwc2_hsotg_remove(struct dwc2_hsotg *dwc2)
{ return 0; }
-static inline int s3c_hsotg_suspend(struct dwc2_hsotg *dwc2)
+static inline int dwc2_hsotg_suspend(struct dwc2_hsotg *dwc2)
{ return 0; }
-static inline int s3c_hsotg_resume(struct dwc2_hsotg *dwc2)
+static inline int dwc2_hsotg_resume(struct dwc2_hsotg *dwc2)
{ return 0; }
static inline int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
{ return 0; }
-static inline void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2,
+static inline void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *dwc2,
bool reset) {}
-static inline void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg) {}
-static inline void s3c_hsotg_disconnect(struct dwc2_hsotg *dwc2) {}
+static inline void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg) {}
+static inline void dwc2_hsotg_disconnect(struct dwc2_hsotg *dwc2) {}
+static inline int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg,
+ int testmode)
+{ return 0; }
+#define dwc2_is_device_connected(hsotg) (0)
#endif
#if IS_ENABLED(CONFIG_USB_DWC2_HOST) || IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
@@ -1025,14 +1157,12 @@ extern int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg);
extern void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg);
extern void dwc2_hcd_start(struct dwc2_hsotg *hsotg);
#else
-static inline void dwc2_set_all_params(struct dwc2_core_params *params, int value) {}
static inline int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg)
{ return 0; }
static inline void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_hcd_start(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) {}
-static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params)
+static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
{ return 0; }
#endif
diff --git a/kernel/drivers/usb/dwc2/core_intr.c b/kernel/drivers/usb/dwc2/core_intr.c
index 6cf047878..27daa4278 100644
--- a/kernel/drivers/usb/dwc2/core_intr.c
+++ b/kernel/drivers/usb/dwc2/core_intr.c
@@ -80,15 +80,15 @@ static const char *dwc2_op_state_str(struct dwc2_hsotg *hsotg)
*/
static void dwc2_handle_usb_port_intr(struct dwc2_hsotg *hsotg)
{
- u32 hprt0 = readl(hsotg->regs + HPRT0);
+ u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0);
if (hprt0 & HPRT0_ENACHG) {
hprt0 &= ~HPRT0_ENA;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
}
/* Clear interrupt */
- writel(GINTSTS_PRTINT, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_PRTINT, hsotg->regs + GINTSTS);
}
/**
@@ -102,7 +102,7 @@ static void dwc2_handle_mode_mismatch_intr(struct dwc2_hsotg *hsotg)
dwc2_is_host_mode(hsotg) ? "Host" : "Device");
/* Clear interrupt */
- writel(GINTSTS_MODEMIS, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_MODEMIS, hsotg->regs + GINTSTS);
}
/**
@@ -117,8 +117,8 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
u32 gotgctl;
u32 gintmsk;
- gotgint = readl(hsotg->regs + GOTGINT);
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgint = dwc2_readl(hsotg->regs + GOTGINT);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
dev_dbg(hsotg->dev, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint,
dwc2_op_state_str(hsotg));
@@ -126,10 +126,10 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev,
" ++OTG Interrupt: Session End Detected++ (%s)\n",
dwc2_op_state_str(hsotg));
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
if (dwc2_is_device_mode(hsotg))
- s3c_hsotg_disconnect(hsotg);
+ dwc2_hsotg_disconnect(hsotg);
if (hsotg->op_state == OTG_STATE_B_HOST) {
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
@@ -152,15 +152,15 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
hsotg->lx_state = DWC2_L0;
}
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
gotgctl &= ~GOTGCTL_DEVHNPEN;
- writel(gotgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(gotgctl, hsotg->regs + GOTGCTL);
}
if (gotgint & GOTGINT_SES_REQ_SUC_STS_CHNG) {
dev_dbg(hsotg->dev,
" ++OTG Interrupt: Session Request Success Status Change++\n");
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
if (gotgctl & GOTGCTL_SESREQSCS) {
if (hsotg->core_params->phy_type ==
DWC2_PHY_TYPE_PARAM_FS
@@ -168,9 +168,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
hsotg->srp_success = 1;
} else {
/* Clear Session Request */
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
gotgctl &= ~GOTGCTL_SESREQ;
- writel(gotgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(gotgctl, hsotg->regs + GOTGCTL);
}
}
}
@@ -180,7 +180,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
* Print statements during the HNP interrupt handling
* can cause it to fail
*/
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
/*
* WA for 3.00a- HW is not setting cur_mode, even sometimes
* this does not help
@@ -200,9 +200,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
* interrupt does not get handled and Linux
* complains loudly.
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_SOF;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
/*
* Call callback function with spin lock
@@ -216,9 +216,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
hsotg->op_state = OTG_STATE_B_HOST;
}
} else {
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
gotgctl &= ~(GOTGCTL_HNPREQ | GOTGCTL_DEVHNPEN);
- writel(gotgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(gotgctl, hsotg->regs + GOTGCTL);
dev_dbg(hsotg->dev, "HNP Failed\n");
dev_err(hsotg->dev,
"Device Not Connected/Responding\n");
@@ -244,9 +244,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
hsotg->op_state = OTG_STATE_A_PERIPHERAL;
} else {
/* Need to disable SOF interrupt immediately */
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_SOF;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
spin_unlock(&hsotg->lock);
dwc2_hcd_start(hsotg);
spin_lock(&hsotg->lock);
@@ -261,7 +261,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, " ++OTG Interrupt: Debounce Done++\n");
/* Clear GOTGINT */
- writel(gotgint, hsotg->regs + GOTGINT);
+ dwc2_writel(gotgint, hsotg->regs + GOTGINT);
}
/**
@@ -276,11 +276,11 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg)
*/
static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
{
- u32 gintmsk = readl(hsotg->regs + GINTMSK);
+ u32 gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
/* Need to disable SOF interrupt immediately */
gintmsk &= ~GINTSTS_SOF;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
dev_dbg(hsotg->dev, " ++Connector ID Status Change Interrupt++ (%s)\n",
dwc2_is_host_mode(hsotg) ? "Host" : "Device");
@@ -297,7 +297,7 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
}
/* Clear interrupt */
- writel(GINTSTS_CONIDSTSCHNG, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_CONIDSTSCHNG, hsotg->regs + GINTSTS);
}
/**
@@ -313,16 +313,28 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
*/
static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
{
- dev_dbg(hsotg->dev, "++Session Request Interrupt++\n");
+ int ret;
+
+ dev_dbg(hsotg->dev, "Session request interrupt - lx_state=%d\n",
+ hsotg->lx_state);
/* Clear interrupt */
- writel(GINTSTS_SESSREQINT, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_SESSREQINT, hsotg->regs + GINTSTS);
- /*
- * Report disconnect if there is any previous session established
- */
- if (dwc2_is_device_mode(hsotg))
- s3c_hsotg_disconnect(hsotg);
+ if (dwc2_is_device_mode(hsotg)) {
+ if (hsotg->lx_state == DWC2_L2) {
+ ret = dwc2_exit_hibernation(hsotg, true);
+ if (ret && (ret != -ENOTSUPP))
+ dev_err(hsotg->dev,
+ "exit hibernation failed\n");
+ }
+
+ /*
+ * Report disconnect if there is any previous session
+ * established
+ */
+ dwc2_hsotg_disconnect(hsotg);
+ }
}
/*
@@ -334,27 +346,38 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
*/
static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
{
+ int ret;
dev_dbg(hsotg->dev, "++Resume or Remote Wakeup Detected Interrupt++\n");
dev_dbg(hsotg->dev, "%s lxstate = %d\n", __func__, hsotg->lx_state);
if (dwc2_is_device_mode(hsotg)) {
- dev_dbg(hsotg->dev, "DSTS=0x%0x\n", readl(hsotg->regs + DSTS));
+ dev_dbg(hsotg->dev, "DSTS=0x%0x\n",
+ dwc2_readl(hsotg->regs + DSTS));
if (hsotg->lx_state == DWC2_L2) {
- u32 dctl = readl(hsotg->regs + DCTL);
+ u32 dctl = dwc2_readl(hsotg->regs + DCTL);
/* Clear Remote Wakeup Signaling */
dctl &= ~DCTL_RMTWKUPSIG;
- writel(dctl, hsotg->regs + DCTL);
+ dwc2_writel(dctl, hsotg->regs + DCTL);
+ ret = dwc2_exit_hibernation(hsotg, true);
+ if (ret && (ret != -ENOTSUPP))
+ dev_err(hsotg->dev, "exit hibernation failed\n");
+
+ call_gadget(hsotg, resume);
}
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
} else {
+ if (hsotg->core_params->hibernation) {
+ dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
+ return;
+ }
if (hsotg->lx_state != DWC2_L1) {
- u32 pcgcctl = readl(hsotg->regs + PCGCTL);
+ u32 pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
/* Restart the Phy Clock */
pcgcctl &= ~PCGCTL_STOPPCLK;
- writel(pcgcctl, hsotg->regs + PCGCTL);
+ dwc2_writel(pcgcctl, hsotg->regs + PCGCTL);
mod_timer(&hsotg->wkp_timer,
jiffies + msecs_to_jiffies(71));
} else {
@@ -364,7 +387,7 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
}
/* Clear interrupt */
- writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS);
}
/*
@@ -380,10 +403,7 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
if (hsotg->op_state == OTG_STATE_A_HOST)
dwc2_hcd_disconnect(hsotg);
- /* Change to L3 (OFF) state */
- hsotg->lx_state = DWC2_L3;
-
- writel(GINTSTS_DISCONNINT, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_DISCONNINT, hsotg->regs + GINTSTS);
}
/*
@@ -397,6 +417,7 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
{
u32 dsts;
+ int ret;
dev_dbg(hsotg->dev, "USB SUSPEND\n");
@@ -405,16 +426,49 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
* Check the Device status register to determine if the Suspend
* state is active
*/
- dsts = readl(hsotg->regs + DSTS);
+ dsts = dwc2_readl(hsotg->regs + DSTS);
dev_dbg(hsotg->dev, "DSTS=0x%0x\n", dsts);
dev_dbg(hsotg->dev,
"DSTS.Suspend Status=%d HWCFG4.Power Optimize=%d\n",
!!(dsts & DSTS_SUSPSTS),
hsotg->hw_params.power_optimized);
+ if ((dsts & DSTS_SUSPSTS) && hsotg->hw_params.power_optimized) {
+ /* Ignore suspend request before enumeration */
+ if (!dwc2_is_device_connected(hsotg)) {
+ dev_dbg(hsotg->dev,
+ "ignore suspend request before enumeration\n");
+ goto clear_int;
+ }
+
+ ret = dwc2_enter_hibernation(hsotg);
+ if (ret) {
+ if (ret != -ENOTSUPP)
+ dev_err(hsotg->dev,
+ "enter hibernation failed\n");
+ goto skip_power_saving;
+ }
+
+ udelay(100);
+
+ /* Ask phy to be suspended */
+ if (!IS_ERR_OR_NULL(hsotg->uphy))
+ usb_phy_set_suspend(hsotg->uphy, true);
+skip_power_saving:
+ /*
+ * Change to L2 (suspend) state before releasing
+ * spinlock
+ */
+ hsotg->lx_state = DWC2_L2;
+
+ /* Call gadget suspend callback */
+ call_gadget(hsotg, suspend);
+ }
} else {
if (hsotg->op_state == OTG_STATE_A_PERIPHERAL) {
dev_dbg(hsotg->dev, "a_peripheral->a_host\n");
+ /* Change to L2 (suspend) state */
+ hsotg->lx_state = DWC2_L2;
/* Clear the a_peripheral flag, back to a_host */
spin_unlock(&hsotg->lock);
dwc2_hcd_start(hsotg);
@@ -423,11 +477,9 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
}
}
- /* Change to L2 (suspend) state */
- hsotg->lx_state = DWC2_L2;
-
+clear_int:
/* Clear interrupt */
- writel(GINTSTS_USBSUSP, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_USBSUSP, hsotg->regs + GINTSTS);
}
#define GINTMSK_COMMON (GINTSTS_WKUPINT | GINTSTS_SESSREQINT | \
@@ -445,9 +497,9 @@ static u32 dwc2_read_common_intr(struct dwc2_hsotg *hsotg)
u32 gahbcfg;
u32 gintmsk_common = GINTMSK_COMMON;
- gintsts = readl(hsotg->regs + GINTSTS);
- gintmsk = readl(hsotg->regs + GINTMSK);
- gahbcfg = readl(hsotg->regs + GAHBCFG);
+ gintsts = dwc2_readl(hsotg->regs + GINTSTS);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
+ gahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
/* If any common interrupts set */
if (gintsts & gintmsk_common)
@@ -522,4 +574,3 @@ out:
spin_unlock(&hsotg->lock);
return retval;
}
-EXPORT_SYMBOL_GPL(dwc2_handle_common_intr);
diff --git a/kernel/drivers/usb/dwc2/debug.h b/kernel/drivers/usb/dwc2/debug.h
new file mode 100644
index 000000000..12dbd1dae
--- /dev/null
+++ b/kernel/drivers/usb/dwc2/debug.h
@@ -0,0 +1,27 @@
+/**
+ * debug.h - Designware USB2 DRD controller debug header
+ *
+ * Copyright (C) 2015 Intel Corporation
+ * Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include "core.h"
+
+#ifdef CONFIG_DEBUG_FS
+extern int dwc2_debugfs_init(struct dwc2_hsotg *);
+extern void dwc2_debugfs_exit(struct dwc2_hsotg *);
+#else
+static inline int dwc2_debugfs_init(struct dwc2_hsotg *hsotg)
+{ return 0; }
+static inline void dwc2_debugfs_exit(struct dwc2_hsotg *hsotg)
+{ }
+#endif
diff --git a/kernel/drivers/usb/dwc2/debugfs.c b/kernel/drivers/usb/dwc2/debugfs.c
new file mode 100644
index 000000000..55d91f24f
--- /dev/null
+++ b/kernel/drivers/usb/dwc2/debugfs.c
@@ -0,0 +1,771 @@
+/**
+ * debugfs.c - Designware USB2 DRD controller debugfs
+ *
+ * Copyright (C) 2015 Intel Corporation
+ * Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/spinlock.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+
+#include "core.h"
+#include "debug.h"
+
+#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \
+ IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
+/**
+ * testmode_write - debugfs: change usb test mode
+ * @seq: The seq file to write to.
+ * @v: Unused parameter.
+ *
+ * This debugfs entry modify the current usb test mode.
+ */
+static ssize_t testmode_write(struct file *file, const char __user *ubuf, size_t
+ count, loff_t *ppos)
+{
+ struct seq_file *s = file->private_data;
+ struct dwc2_hsotg *hsotg = s->private;
+ unsigned long flags;
+ u32 testmode = 0;
+ char buf[32];
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ if (!strncmp(buf, "test_j", 6))
+ testmode = TEST_J;
+ else if (!strncmp(buf, "test_k", 6))
+ testmode = TEST_K;
+ else if (!strncmp(buf, "test_se0_nak", 12))
+ testmode = TEST_SE0_NAK;
+ else if (!strncmp(buf, "test_packet", 11))
+ testmode = TEST_PACKET;
+ else if (!strncmp(buf, "test_force_enable", 17))
+ testmode = TEST_FORCE_EN;
+ else
+ testmode = 0;
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+ dwc2_hsotg_set_test_mode(hsotg, testmode);
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ return count;
+}
+
+/**
+ * testmode_show - debugfs: show usb test mode state
+ * @seq: The seq file to write to.
+ * @v: Unused parameter.
+ *
+ * This debugfs entry shows which usb test mode is currently enabled.
+ */
+static int testmode_show(struct seq_file *s, void *unused)
+{
+ struct dwc2_hsotg *hsotg = s->private;
+ unsigned long flags;
+ int dctl;
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+ dctl = dwc2_readl(hsotg->regs + DCTL);
+ dctl &= DCTL_TSTCTL_MASK;
+ dctl >>= DCTL_TSTCTL_SHIFT;
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ switch (dctl) {
+ case 0:
+ seq_puts(s, "no test\n");
+ break;
+ case TEST_J:
+ seq_puts(s, "test_j\n");
+ break;
+ case TEST_K:
+ seq_puts(s, "test_k\n");
+ break;
+ case TEST_SE0_NAK:
+ seq_puts(s, "test_se0_nak\n");
+ break;
+ case TEST_PACKET:
+ seq_puts(s, "test_packet\n");
+ break;
+ case TEST_FORCE_EN:
+ seq_puts(s, "test_force_enable\n");
+ break;
+ default:
+ seq_printf(s, "UNKNOWN %d\n", dctl);
+ }
+
+ return 0;
+}
+
+static int testmode_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, testmode_show, inode->i_private);
+}
+
+static const struct file_operations testmode_fops = {
+ .owner = THIS_MODULE,
+ .open = testmode_open,
+ .write = testmode_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/**
+ * state_show - debugfs: show overall driver and device state.
+ * @seq: The seq file to write to.
+ * @v: Unused parameter.
+ *
+ * This debugfs entry shows the overall state of the hardware and
+ * some general information about each of the endpoints available
+ * to the system.
+ */
+static int state_show(struct seq_file *seq, void *v)
+{
+ struct dwc2_hsotg *hsotg = seq->private;
+ void __iomem *regs = hsotg->regs;
+ int idx;
+
+ seq_printf(seq, "DCFG=0x%08x, DCTL=0x%08x, DSTS=0x%08x\n",
+ dwc2_readl(regs + DCFG),
+ dwc2_readl(regs + DCTL),
+ dwc2_readl(regs + DSTS));
+
+ seq_printf(seq, "DIEPMSK=0x%08x, DOEPMASK=0x%08x\n",
+ dwc2_readl(regs + DIEPMSK), dwc2_readl(regs + DOEPMSK));
+
+ seq_printf(seq, "GINTMSK=0x%08x, GINTSTS=0x%08x\n",
+ dwc2_readl(regs + GINTMSK),
+ dwc2_readl(regs + GINTSTS));
+
+ seq_printf(seq, "DAINTMSK=0x%08x, DAINT=0x%08x\n",
+ dwc2_readl(regs + DAINTMSK),
+ dwc2_readl(regs + DAINT));
+
+ seq_printf(seq, "GNPTXSTS=0x%08x, GRXSTSR=%08x\n",
+ dwc2_readl(regs + GNPTXSTS),
+ dwc2_readl(regs + GRXSTSR));
+
+ seq_puts(seq, "\nEndpoint status:\n");
+
+ for (idx = 0; idx < hsotg->num_of_eps; idx++) {
+ u32 in, out;
+
+ in = dwc2_readl(regs + DIEPCTL(idx));
+ out = dwc2_readl(regs + DOEPCTL(idx));
+
+ seq_printf(seq, "ep%d: DIEPCTL=0x%08x, DOEPCTL=0x%08x",
+ idx, in, out);
+
+ in = dwc2_readl(regs + DIEPTSIZ(idx));
+ out = dwc2_readl(regs + DOEPTSIZ(idx));
+
+ seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
+ in, out);
+
+ seq_puts(seq, "\n");
+ }
+
+ return 0;
+}
+
+static int state_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, state_show, inode->i_private);
+}
+
+static const struct file_operations state_fops = {
+ .owner = THIS_MODULE,
+ .open = state_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/**
+ * fifo_show - debugfs: show the fifo information
+ * @seq: The seq_file to write data to.
+ * @v: Unused parameter.
+ *
+ * Show the FIFO information for the overall fifo and all the
+ * periodic transmission FIFOs.
+ */
+static int fifo_show(struct seq_file *seq, void *v)
+{
+ struct dwc2_hsotg *hsotg = seq->private;
+ void __iomem *regs = hsotg->regs;
+ u32 val;
+ int idx;
+
+ seq_puts(seq, "Non-periodic FIFOs:\n");
+ seq_printf(seq, "RXFIFO: Size %d\n", dwc2_readl(regs + GRXFSIZ));
+
+ val = dwc2_readl(regs + GNPTXFSIZ);
+ seq_printf(seq, "NPTXFIFO: Size %d, Start 0x%08x\n",
+ val >> FIFOSIZE_DEPTH_SHIFT,
+ val & FIFOSIZE_DEPTH_MASK);
+
+ seq_puts(seq, "\nPeriodic TXFIFOs:\n");
+
+ for (idx = 1; idx < hsotg->num_of_eps; idx++) {
+ val = dwc2_readl(regs + DPTXFSIZN(idx));
+
+ seq_printf(seq, "\tDPTXFIFO%2d: Size %d, Start 0x%08x\n", idx,
+ val >> FIFOSIZE_DEPTH_SHIFT,
+ val & FIFOSIZE_STARTADDR_MASK);
+ }
+
+ return 0;
+}
+
+static int fifo_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, fifo_show, inode->i_private);
+}
+
+static const struct file_operations fifo_fops = {
+ .owner = THIS_MODULE,
+ .open = fifo_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const char *decode_direction(int is_in)
+{
+ return is_in ? "in" : "out";
+}
+
+/**
+ * ep_show - debugfs: show the state of an endpoint.
+ * @seq: The seq_file to write data to.
+ * @v: Unused parameter.
+ *
+ * This debugfs entry shows the state of the given endpoint (one is
+ * registered for each available).
+ */
+static int ep_show(struct seq_file *seq, void *v)
+{
+ struct dwc2_hsotg_ep *ep = seq->private;
+ struct dwc2_hsotg *hsotg = ep->parent;
+ struct dwc2_hsotg_req *req;
+ void __iomem *regs = hsotg->regs;
+ int index = ep->index;
+ int show_limit = 15;
+ unsigned long flags;
+
+ seq_printf(seq, "Endpoint index %d, named %s, dir %s:\n",
+ ep->index, ep->ep.name, decode_direction(ep->dir_in));
+
+ /* first show the register state */
+
+ seq_printf(seq, "\tDIEPCTL=0x%08x, DOEPCTL=0x%08x\n",
+ dwc2_readl(regs + DIEPCTL(index)),
+ dwc2_readl(regs + DOEPCTL(index)));
+
+ seq_printf(seq, "\tDIEPDMA=0x%08x, DOEPDMA=0x%08x\n",
+ dwc2_readl(regs + DIEPDMA(index)),
+ dwc2_readl(regs + DOEPDMA(index)));
+
+ seq_printf(seq, "\tDIEPINT=0x%08x, DOEPINT=0x%08x\n",
+ dwc2_readl(regs + DIEPINT(index)),
+ dwc2_readl(regs + DOEPINT(index)));
+
+ seq_printf(seq, "\tDIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x\n",
+ dwc2_readl(regs + DIEPTSIZ(index)),
+ dwc2_readl(regs + DOEPTSIZ(index)));
+
+ seq_puts(seq, "\n");
+ seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
+ seq_printf(seq, "total_data=%ld\n", ep->total_data);
+
+ seq_printf(seq, "request list (%p,%p):\n",
+ ep->queue.next, ep->queue.prev);
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+
+ list_for_each_entry(req, &ep->queue, queue) {
+ if (--show_limit < 0) {
+ seq_puts(seq, "not showing more requests...\n");
+ break;
+ }
+
+ seq_printf(seq, "%c req %p: %d bytes @%p, ",
+ req == ep->req ? '*' : ' ',
+ req, req->req.length, req->req.buf);
+ seq_printf(seq, "%d done, res %d\n",
+ req->req.actual, req->req.status);
+ }
+
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ return 0;
+}
+
+static int ep_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ep_show, inode->i_private);
+}
+
+static const struct file_operations ep_fops = {
+ .owner = THIS_MODULE,
+ .open = ep_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+/**
+ * dwc2_hsotg_create_debug - create debugfs directory and files
+ * @hsotg: The driver state
+ *
+ * Create the debugfs files to allow the user to get information
+ * about the state of the system. The directory name is created
+ * with the same name as the device itself, in case we end up
+ * with multiple blocks in future systems.
+ */
+static void dwc2_hsotg_create_debug(struct dwc2_hsotg *hsotg)
+{
+ struct dentry *root;
+ struct dentry *file;
+ unsigned epidx;
+
+ root = hsotg->debug_root;
+
+ /* create general state file */
+
+ file = debugfs_create_file("state", S_IRUGO, root, hsotg, &state_fops);
+ if (IS_ERR(file))
+ dev_err(hsotg->dev, "%s: failed to create state\n", __func__);
+
+ file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, hsotg,
+ &testmode_fops);
+ if (IS_ERR(file))
+ dev_err(hsotg->dev, "%s: failed to create testmode\n",
+ __func__);
+
+ file = debugfs_create_file("fifo", S_IRUGO, root, hsotg, &fifo_fops);
+ if (IS_ERR(file))
+ dev_err(hsotg->dev, "%s: failed to create fifo\n", __func__);
+
+ /* Create one file for each out endpoint */
+ for (epidx = 0; epidx < hsotg->num_of_eps; epidx++) {
+ struct dwc2_hsotg_ep *ep;
+
+ ep = hsotg->eps_out[epidx];
+ if (ep) {
+ file = debugfs_create_file(ep->name, S_IRUGO,
+ root, ep, &ep_fops);
+ if (IS_ERR(file))
+ dev_err(hsotg->dev, "failed to create %s debug file\n",
+ ep->name);
+ }
+ }
+ /* Create one file for each in endpoint. EP0 is handled with out eps */
+ for (epidx = 1; epidx < hsotg->num_of_eps; epidx++) {
+ struct dwc2_hsotg_ep *ep;
+
+ ep = hsotg->eps_in[epidx];
+ if (ep) {
+ file = debugfs_create_file(ep->name, S_IRUGO,
+ root, ep, &ep_fops);
+ if (IS_ERR(file))
+ dev_err(hsotg->dev, "failed to create %s debug file\n",
+ ep->name);
+ }
+ }
+}
+#else
+static inline void dwc2_hsotg_create_debug(struct dwc2_hsotg *hsotg) {}
+#endif
+
+/* dwc2_hsotg_delete_debug is removed as cleanup in done in dwc2_debugfs_exit */
+
+#define dump_register(nm) \
+{ \
+ .name = #nm, \
+ .offset = nm, \
+}
+
+static const struct debugfs_reg32 dwc2_regs[] = {
+ /*
+ * Accessing registers like this can trigger mode mismatch interrupt.
+ * However, according to dwc2 databook, the register access, in this
+ * case, is completed on the processor bus but is ignored by the core
+ * and does not affect its operation.
+ */
+ dump_register(GOTGCTL),
+ dump_register(GOTGINT),
+ dump_register(GAHBCFG),
+ dump_register(GUSBCFG),
+ dump_register(GRSTCTL),
+ dump_register(GINTSTS),
+ dump_register(GINTMSK),
+ dump_register(GRXSTSR),
+ dump_register(GRXSTSP),
+ dump_register(GRXFSIZ),
+ dump_register(GNPTXFSIZ),
+ dump_register(GNPTXSTS),
+ dump_register(GI2CCTL),
+ dump_register(GPVNDCTL),
+ dump_register(GGPIO),
+ dump_register(GUID),
+ dump_register(GSNPSID),
+ dump_register(GHWCFG1),
+ dump_register(GHWCFG2),
+ dump_register(GHWCFG3),
+ dump_register(GHWCFG4),
+ dump_register(GLPMCFG),
+ dump_register(GPWRDN),
+ dump_register(GDFIFOCFG),
+ dump_register(ADPCTL),
+ dump_register(HPTXFSIZ),
+ dump_register(DPTXFSIZN(1)),
+ dump_register(DPTXFSIZN(2)),
+ dump_register(DPTXFSIZN(3)),
+ dump_register(DPTXFSIZN(4)),
+ dump_register(DPTXFSIZN(5)),
+ dump_register(DPTXFSIZN(6)),
+ dump_register(DPTXFSIZN(7)),
+ dump_register(DPTXFSIZN(8)),
+ dump_register(DPTXFSIZN(9)),
+ dump_register(DPTXFSIZN(10)),
+ dump_register(DPTXFSIZN(11)),
+ dump_register(DPTXFSIZN(12)),
+ dump_register(DPTXFSIZN(13)),
+ dump_register(DPTXFSIZN(14)),
+ dump_register(DPTXFSIZN(15)),
+ dump_register(DCFG),
+ dump_register(DCTL),
+ dump_register(DSTS),
+ dump_register(DIEPMSK),
+ dump_register(DOEPMSK),
+ dump_register(DAINT),
+ dump_register(DAINTMSK),
+ dump_register(DTKNQR1),
+ dump_register(DTKNQR2),
+ dump_register(DTKNQR3),
+ dump_register(DTKNQR4),
+ dump_register(DVBUSDIS),
+ dump_register(DVBUSPULSE),
+ dump_register(DIEPCTL(0)),
+ dump_register(DIEPCTL(1)),
+ dump_register(DIEPCTL(2)),
+ dump_register(DIEPCTL(3)),
+ dump_register(DIEPCTL(4)),
+ dump_register(DIEPCTL(5)),
+ dump_register(DIEPCTL(6)),
+ dump_register(DIEPCTL(7)),
+ dump_register(DIEPCTL(8)),
+ dump_register(DIEPCTL(9)),
+ dump_register(DIEPCTL(10)),
+ dump_register(DIEPCTL(11)),
+ dump_register(DIEPCTL(12)),
+ dump_register(DIEPCTL(13)),
+ dump_register(DIEPCTL(14)),
+ dump_register(DIEPCTL(15)),
+ dump_register(DOEPCTL(0)),
+ dump_register(DOEPCTL(1)),
+ dump_register(DOEPCTL(2)),
+ dump_register(DOEPCTL(3)),
+ dump_register(DOEPCTL(4)),
+ dump_register(DOEPCTL(5)),
+ dump_register(DOEPCTL(6)),
+ dump_register(DOEPCTL(7)),
+ dump_register(DOEPCTL(8)),
+ dump_register(DOEPCTL(9)),
+ dump_register(DOEPCTL(10)),
+ dump_register(DOEPCTL(11)),
+ dump_register(DOEPCTL(12)),
+ dump_register(DOEPCTL(13)),
+ dump_register(DOEPCTL(14)),
+ dump_register(DOEPCTL(15)),
+ dump_register(DIEPINT(0)),
+ dump_register(DIEPINT(1)),
+ dump_register(DIEPINT(2)),
+ dump_register(DIEPINT(3)),
+ dump_register(DIEPINT(4)),
+ dump_register(DIEPINT(5)),
+ dump_register(DIEPINT(6)),
+ dump_register(DIEPINT(7)),
+ dump_register(DIEPINT(8)),
+ dump_register(DIEPINT(9)),
+ dump_register(DIEPINT(10)),
+ dump_register(DIEPINT(11)),
+ dump_register(DIEPINT(12)),
+ dump_register(DIEPINT(13)),
+ dump_register(DIEPINT(14)),
+ dump_register(DIEPINT(15)),
+ dump_register(DOEPINT(0)),
+ dump_register(DOEPINT(1)),
+ dump_register(DOEPINT(2)),
+ dump_register(DOEPINT(3)),
+ dump_register(DOEPINT(4)),
+ dump_register(DOEPINT(5)),
+ dump_register(DOEPINT(6)),
+ dump_register(DOEPINT(7)),
+ dump_register(DOEPINT(8)),
+ dump_register(DOEPINT(9)),
+ dump_register(DOEPINT(10)),
+ dump_register(DOEPINT(11)),
+ dump_register(DOEPINT(12)),
+ dump_register(DOEPINT(13)),
+ dump_register(DOEPINT(14)),
+ dump_register(DOEPINT(15)),
+ dump_register(DIEPTSIZ(0)),
+ dump_register(DIEPTSIZ(1)),
+ dump_register(DIEPTSIZ(2)),
+ dump_register(DIEPTSIZ(3)),
+ dump_register(DIEPTSIZ(4)),
+ dump_register(DIEPTSIZ(5)),
+ dump_register(DIEPTSIZ(6)),
+ dump_register(DIEPTSIZ(7)),
+ dump_register(DIEPTSIZ(8)),
+ dump_register(DIEPTSIZ(9)),
+ dump_register(DIEPTSIZ(10)),
+ dump_register(DIEPTSIZ(11)),
+ dump_register(DIEPTSIZ(12)),
+ dump_register(DIEPTSIZ(13)),
+ dump_register(DIEPTSIZ(14)),
+ dump_register(DIEPTSIZ(15)),
+ dump_register(DOEPTSIZ(0)),
+ dump_register(DOEPTSIZ(1)),
+ dump_register(DOEPTSIZ(2)),
+ dump_register(DOEPTSIZ(3)),
+ dump_register(DOEPTSIZ(4)),
+ dump_register(DOEPTSIZ(5)),
+ dump_register(DOEPTSIZ(6)),
+ dump_register(DOEPTSIZ(7)),
+ dump_register(DOEPTSIZ(8)),
+ dump_register(DOEPTSIZ(9)),
+ dump_register(DOEPTSIZ(10)),
+ dump_register(DOEPTSIZ(11)),
+ dump_register(DOEPTSIZ(12)),
+ dump_register(DOEPTSIZ(13)),
+ dump_register(DOEPTSIZ(14)),
+ dump_register(DOEPTSIZ(15)),
+ dump_register(DIEPDMA(0)),
+ dump_register(DIEPDMA(1)),
+ dump_register(DIEPDMA(2)),
+ dump_register(DIEPDMA(3)),
+ dump_register(DIEPDMA(4)),
+ dump_register(DIEPDMA(5)),
+ dump_register(DIEPDMA(6)),
+ dump_register(DIEPDMA(7)),
+ dump_register(DIEPDMA(8)),
+ dump_register(DIEPDMA(9)),
+ dump_register(DIEPDMA(10)),
+ dump_register(DIEPDMA(11)),
+ dump_register(DIEPDMA(12)),
+ dump_register(DIEPDMA(13)),
+ dump_register(DIEPDMA(14)),
+ dump_register(DIEPDMA(15)),
+ dump_register(DOEPDMA(0)),
+ dump_register(DOEPDMA(1)),
+ dump_register(DOEPDMA(2)),
+ dump_register(DOEPDMA(3)),
+ dump_register(DOEPDMA(4)),
+ dump_register(DOEPDMA(5)),
+ dump_register(DOEPDMA(6)),
+ dump_register(DOEPDMA(7)),
+ dump_register(DOEPDMA(8)),
+ dump_register(DOEPDMA(9)),
+ dump_register(DOEPDMA(10)),
+ dump_register(DOEPDMA(11)),
+ dump_register(DOEPDMA(12)),
+ dump_register(DOEPDMA(13)),
+ dump_register(DOEPDMA(14)),
+ dump_register(DOEPDMA(15)),
+ dump_register(DTXFSTS(0)),
+ dump_register(DTXFSTS(1)),
+ dump_register(DTXFSTS(2)),
+ dump_register(DTXFSTS(3)),
+ dump_register(DTXFSTS(4)),
+ dump_register(DTXFSTS(5)),
+ dump_register(DTXFSTS(6)),
+ dump_register(DTXFSTS(7)),
+ dump_register(DTXFSTS(8)),
+ dump_register(DTXFSTS(9)),
+ dump_register(DTXFSTS(10)),
+ dump_register(DTXFSTS(11)),
+ dump_register(DTXFSTS(12)),
+ dump_register(DTXFSTS(13)),
+ dump_register(DTXFSTS(14)),
+ dump_register(DTXFSTS(15)),
+ dump_register(PCGCTL),
+ dump_register(HCFG),
+ dump_register(HFIR),
+ dump_register(HFNUM),
+ dump_register(HPTXSTS),
+ dump_register(HAINT),
+ dump_register(HAINTMSK),
+ dump_register(HFLBADDR),
+ dump_register(HPRT0),
+ dump_register(HCCHAR(0)),
+ dump_register(HCCHAR(1)),
+ dump_register(HCCHAR(2)),
+ dump_register(HCCHAR(3)),
+ dump_register(HCCHAR(4)),
+ dump_register(HCCHAR(5)),
+ dump_register(HCCHAR(6)),
+ dump_register(HCCHAR(7)),
+ dump_register(HCCHAR(8)),
+ dump_register(HCCHAR(9)),
+ dump_register(HCCHAR(10)),
+ dump_register(HCCHAR(11)),
+ dump_register(HCCHAR(12)),
+ dump_register(HCCHAR(13)),
+ dump_register(HCCHAR(14)),
+ dump_register(HCCHAR(15)),
+ dump_register(HCSPLT(0)),
+ dump_register(HCSPLT(1)),
+ dump_register(HCSPLT(2)),
+ dump_register(HCSPLT(3)),
+ dump_register(HCSPLT(4)),
+ dump_register(HCSPLT(5)),
+ dump_register(HCSPLT(6)),
+ dump_register(HCSPLT(7)),
+ dump_register(HCSPLT(8)),
+ dump_register(HCSPLT(9)),
+ dump_register(HCSPLT(10)),
+ dump_register(HCSPLT(11)),
+ dump_register(HCSPLT(12)),
+ dump_register(HCSPLT(13)),
+ dump_register(HCSPLT(14)),
+ dump_register(HCSPLT(15)),
+ dump_register(HCINT(0)),
+ dump_register(HCINT(1)),
+ dump_register(HCINT(2)),
+ dump_register(HCINT(3)),
+ dump_register(HCINT(4)),
+ dump_register(HCINT(5)),
+ dump_register(HCINT(6)),
+ dump_register(HCINT(7)),
+ dump_register(HCINT(8)),
+ dump_register(HCINT(9)),
+ dump_register(HCINT(10)),
+ dump_register(HCINT(11)),
+ dump_register(HCINT(12)),
+ dump_register(HCINT(13)),
+ dump_register(HCINT(14)),
+ dump_register(HCINT(15)),
+ dump_register(HCINTMSK(0)),
+ dump_register(HCINTMSK(1)),
+ dump_register(HCINTMSK(2)),
+ dump_register(HCINTMSK(3)),
+ dump_register(HCINTMSK(4)),
+ dump_register(HCINTMSK(5)),
+ dump_register(HCINTMSK(6)),
+ dump_register(HCINTMSK(7)),
+ dump_register(HCINTMSK(8)),
+ dump_register(HCINTMSK(9)),
+ dump_register(HCINTMSK(10)),
+ dump_register(HCINTMSK(11)),
+ dump_register(HCINTMSK(12)),
+ dump_register(HCINTMSK(13)),
+ dump_register(HCINTMSK(14)),
+ dump_register(HCINTMSK(15)),
+ dump_register(HCTSIZ(0)),
+ dump_register(HCTSIZ(1)),
+ dump_register(HCTSIZ(2)),
+ dump_register(HCTSIZ(3)),
+ dump_register(HCTSIZ(4)),
+ dump_register(HCTSIZ(5)),
+ dump_register(HCTSIZ(6)),
+ dump_register(HCTSIZ(7)),
+ dump_register(HCTSIZ(8)),
+ dump_register(HCTSIZ(9)),
+ dump_register(HCTSIZ(10)),
+ dump_register(HCTSIZ(11)),
+ dump_register(HCTSIZ(12)),
+ dump_register(HCTSIZ(13)),
+ dump_register(HCTSIZ(14)),
+ dump_register(HCTSIZ(15)),
+ dump_register(HCDMA(0)),
+ dump_register(HCDMA(1)),
+ dump_register(HCDMA(2)),
+ dump_register(HCDMA(3)),
+ dump_register(HCDMA(4)),
+ dump_register(HCDMA(5)),
+ dump_register(HCDMA(6)),
+ dump_register(HCDMA(7)),
+ dump_register(HCDMA(8)),
+ dump_register(HCDMA(9)),
+ dump_register(HCDMA(10)),
+ dump_register(HCDMA(11)),
+ dump_register(HCDMA(12)),
+ dump_register(HCDMA(13)),
+ dump_register(HCDMA(14)),
+ dump_register(HCDMA(15)),
+ dump_register(HCDMAB(0)),
+ dump_register(HCDMAB(1)),
+ dump_register(HCDMAB(2)),
+ dump_register(HCDMAB(3)),
+ dump_register(HCDMAB(4)),
+ dump_register(HCDMAB(5)),
+ dump_register(HCDMAB(6)),
+ dump_register(HCDMAB(7)),
+ dump_register(HCDMAB(8)),
+ dump_register(HCDMAB(9)),
+ dump_register(HCDMAB(10)),
+ dump_register(HCDMAB(11)),
+ dump_register(HCDMAB(12)),
+ dump_register(HCDMAB(13)),
+ dump_register(HCDMAB(14)),
+ dump_register(HCDMAB(15)),
+};
+
+int dwc2_debugfs_init(struct dwc2_hsotg *hsotg)
+{
+ int ret;
+ struct dentry *file;
+
+ hsotg->debug_root = debugfs_create_dir(dev_name(hsotg->dev), NULL);
+ if (!hsotg->debug_root) {
+ ret = -ENOMEM;
+ goto err0;
+ }
+
+ /* Add gadget debugfs nodes */
+ dwc2_hsotg_create_debug(hsotg);
+
+ hsotg->regset = devm_kzalloc(hsotg->dev, sizeof(*hsotg->regset),
+ GFP_KERNEL);
+ if (!hsotg->regset) {
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ hsotg->regset->regs = dwc2_regs;
+ hsotg->regset->nregs = ARRAY_SIZE(dwc2_regs);
+ hsotg->regset->base = hsotg->regs;
+
+ file = debugfs_create_regset32("regdump", S_IRUGO, hsotg->debug_root,
+ hsotg->regset);
+ if (!file) {
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ return 0;
+err1:
+ debugfs_remove_recursive(hsotg->debug_root);
+err0:
+ return ret;
+}
+
+void dwc2_debugfs_exit(struct dwc2_hsotg *hsotg)
+{
+ debugfs_remove_recursive(hsotg->debug_root);
+ hsotg->debug_root = NULL;
+}
diff --git a/kernel/drivers/usb/dwc2/gadget.c b/kernel/drivers/usb/dwc2/gadget.c
index 6a3088708..0abf73c91 100644
--- a/kernel/drivers/usb/dwc2/gadget.c
+++ b/kernel/drivers/usb/dwc2/gadget.c
@@ -20,35 +20,29 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
-#include <linux/debugfs.h>
#include <linux/mutex.h>
#include <linux/seq_file.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/slab.h>
-#include <linux/clk.h>
-#include <linux/regulator/consumer.h>
#include <linux/of_platform.h>
-#include <linux/phy/phy.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/phy.h>
-#include <linux/platform_data/s3c-hsotg.h>
-#include <linux/uaccess.h>
#include "core.h"
#include "hw.h"
/* conversion functions */
-static inline struct s3c_hsotg_req *our_req(struct usb_request *req)
+static inline struct dwc2_hsotg_req *our_req(struct usb_request *req)
{
- return container_of(req, struct s3c_hsotg_req, req);
+ return container_of(req, struct dwc2_hsotg_req, req);
}
-static inline struct s3c_hsotg_ep *our_ep(struct usb_ep *ep)
+static inline struct dwc2_hsotg_ep *our_ep(struct usb_ep *ep)
{
- return container_of(ep, struct s3c_hsotg_ep, ep);
+ return container_of(ep, struct dwc2_hsotg_ep, ep);
}
static inline struct dwc2_hsotg *to_hsotg(struct usb_gadget *gadget)
@@ -58,15 +52,15 @@ static inline struct dwc2_hsotg *to_hsotg(struct usb_gadget *gadget)
static inline void __orr32(void __iomem *ptr, u32 val)
{
- writel(readl(ptr) | val, ptr);
+ dwc2_writel(dwc2_readl(ptr) | val, ptr);
}
static inline void __bic32(void __iomem *ptr, u32 val)
{
- writel(readl(ptr) & ~val, ptr);
+ dwc2_writel(dwc2_readl(ptr) & ~val, ptr);
}
-static inline struct s3c_hsotg_ep *index_to_ep(struct dwc2_hsotg *hsotg,
+static inline struct dwc2_hsotg_ep *index_to_ep(struct dwc2_hsotg *hsotg,
u32 ep_index, u32 dir_in)
{
if (dir_in)
@@ -76,7 +70,7 @@ static inline struct s3c_hsotg_ep *index_to_ep(struct dwc2_hsotg *hsotg,
}
/* forward declaration of functions */
-static void s3c_hsotg_dump(struct dwc2_hsotg *hsotg);
+static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg);
/**
* using_dma - return the DMA status of the driver.
@@ -103,41 +97,41 @@ static inline bool using_dma(struct dwc2_hsotg *hsotg)
}
/**
- * s3c_hsotg_en_gsint - enable one or more of the general interrupt
+ * dwc2_hsotg_en_gsint - enable one or more of the general interrupt
* @hsotg: The device state
* @ints: A bitmask of the interrupts to enable
*/
-static void s3c_hsotg_en_gsint(struct dwc2_hsotg *hsotg, u32 ints)
+static void dwc2_hsotg_en_gsint(struct dwc2_hsotg *hsotg, u32 ints)
{
- u32 gsintmsk = readl(hsotg->regs + GINTMSK);
+ u32 gsintmsk = dwc2_readl(hsotg->regs + GINTMSK);
u32 new_gsintmsk;
new_gsintmsk = gsintmsk | ints;
if (new_gsintmsk != gsintmsk) {
dev_dbg(hsotg->dev, "gsintmsk now 0x%08x\n", new_gsintmsk);
- writel(new_gsintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(new_gsintmsk, hsotg->regs + GINTMSK);
}
}
/**
- * s3c_hsotg_disable_gsint - disable one or more of the general interrupt
+ * dwc2_hsotg_disable_gsint - disable one or more of the general interrupt
* @hsotg: The device state
* @ints: A bitmask of the interrupts to enable
*/
-static void s3c_hsotg_disable_gsint(struct dwc2_hsotg *hsotg, u32 ints)
+static void dwc2_hsotg_disable_gsint(struct dwc2_hsotg *hsotg, u32 ints)
{
- u32 gsintmsk = readl(hsotg->regs + GINTMSK);
+ u32 gsintmsk = dwc2_readl(hsotg->regs + GINTMSK);
u32 new_gsintmsk;
new_gsintmsk = gsintmsk & ~ints;
if (new_gsintmsk != gsintmsk)
- writel(new_gsintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(new_gsintmsk, hsotg->regs + GINTMSK);
}
/**
- * s3c_hsotg_ctrl_epint - enable/disable an endpoint irq
+ * dwc2_hsotg_ctrl_epint - enable/disable an endpoint irq
* @hsotg: The device state
* @ep: The endpoint index
* @dir_in: True if direction is in.
@@ -146,7 +140,7 @@ static void s3c_hsotg_disable_gsint(struct dwc2_hsotg *hsotg, u32 ints)
* Set or clear the mask for an individual endpoint's interrupt
* request.
*/
-static void s3c_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg,
+static void dwc2_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg,
unsigned int ep, unsigned int dir_in,
unsigned int en)
{
@@ -158,20 +152,20 @@ static void s3c_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg,
bit <<= 16;
local_irq_save(flags);
- daint = readl(hsotg->regs + DAINTMSK);
+ daint = dwc2_readl(hsotg->regs + DAINTMSK);
if (en)
daint |= bit;
else
daint &= ~bit;
- writel(daint, hsotg->regs + DAINTMSK);
+ dwc2_writel(daint, hsotg->regs + DAINTMSK);
local_irq_restore(flags);
}
/**
- * s3c_hsotg_init_fifo - initialise non-periodic FIFOs
+ * dwc2_hsotg_init_fifo - initialise non-periodic FIFOs
* @hsotg: The device instance.
*/
-static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
{
unsigned int ep;
unsigned int addr;
@@ -183,8 +177,8 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
hsotg->fifo_map = 0;
/* set RX/NPTX FIFO sizes */
- writel(hsotg->g_rx_fifo_sz, hsotg->regs + GRXFSIZ);
- writel((hsotg->g_rx_fifo_sz << FIFOSIZE_STARTADDR_SHIFT) |
+ dwc2_writel(hsotg->g_rx_fifo_sz, hsotg->regs + GRXFSIZ);
+ dwc2_writel((hsotg->g_rx_fifo_sz << FIFOSIZE_STARTADDR_SHIFT) |
(hsotg->g_np_g_tx_fifo_sz << FIFOSIZE_DEPTH_SHIFT),
hsotg->regs + GNPTXFSIZ);
@@ -212,7 +206,7 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
"insufficient fifo memory");
addr += hsotg->g_tx_fifo_sz[ep];
- writel(val, hsotg->regs + DPTXFSIZN(ep));
+ dwc2_writel(val, hsotg->regs + DPTXFSIZN(ep));
}
/*
@@ -220,13 +214,13 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
* all fifos are flushed before continuing
*/
- writel(GRSTCTL_TXFNUM(0x10) | GRSTCTL_TXFFLSH |
+ dwc2_writel(GRSTCTL_TXFNUM(0x10) | GRSTCTL_TXFFLSH |
GRSTCTL_RXFFLSH, hsotg->regs + GRSTCTL);
/* wait until the fifos are both flushed */
timeout = 100;
while (1) {
- val = readl(hsotg->regs + GRSTCTL);
+ val = dwc2_readl(hsotg->regs + GRSTCTL);
if ((val & (GRSTCTL_TXFFLSH | GRSTCTL_RXFFLSH)) == 0)
break;
@@ -250,12 +244,12 @@ static void s3c_hsotg_init_fifo(struct dwc2_hsotg *hsotg)
*
* Allocate a new USB request structure appropriate for the specified endpoint
*/
-static struct usb_request *s3c_hsotg_ep_alloc_request(struct usb_ep *ep,
+static struct usb_request *dwc2_hsotg_ep_alloc_request(struct usb_ep *ep,
gfp_t flags)
{
- struct s3c_hsotg_req *req;
+ struct dwc2_hsotg_req *req;
- req = kzalloc(sizeof(struct s3c_hsotg_req), flags);
+ req = kzalloc(sizeof(struct dwc2_hsotg_req), flags);
if (!req)
return NULL;
@@ -271,23 +265,23 @@ static struct usb_request *s3c_hsotg_ep_alloc_request(struct usb_ep *ep,
* Returns true if the endpoint is in periodic mode, meaning it is being
* used for an Interrupt or ISO transfer.
*/
-static inline int is_ep_periodic(struct s3c_hsotg_ep *hs_ep)
+static inline int is_ep_periodic(struct dwc2_hsotg_ep *hs_ep)
{
return hs_ep->periodic;
}
/**
- * s3c_hsotg_unmap_dma - unmap the DMA memory being used for the request
+ * dwc2_hsotg_unmap_dma - unmap the DMA memory being used for the request
* @hsotg: The device state.
* @hs_ep: The endpoint for the request
* @hs_req: The request being processed.
*
- * This is the reverse of s3c_hsotg_map_dma(), called for the completion
+ * This is the reverse of dwc2_hsotg_map_dma(), called for the completion
* of a request to ensure the buffer is ready for access by the caller.
*/
-static void s3c_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
- struct s3c_hsotg_req *hs_req)
+static void dwc2_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
+ struct dwc2_hsotg_req *hs_req)
{
struct usb_request *req = &hs_req->req;
@@ -299,7 +293,7 @@ static void s3c_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
}
/**
- * s3c_hsotg_write_fifo - write packet Data to the TxFIFO
+ * dwc2_hsotg_write_fifo - write packet Data to the TxFIFO
* @hsotg: The controller state.
* @hs_ep: The endpoint we're going to write for.
* @hs_req: The request to write data for.
@@ -314,12 +308,12 @@ static void s3c_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
*
* This routine is only needed for PIO
*/
-static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
- struct s3c_hsotg_req *hs_req)
+static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
+ struct dwc2_hsotg_req *hs_req)
{
bool periodic = is_ep_periodic(hs_ep);
- u32 gnptxsts = readl(hsotg->regs + GNPTXSTS);
+ u32 gnptxsts = dwc2_readl(hsotg->regs + GNPTXSTS);
int buf_pos = hs_req->req.actual;
int to_write = hs_ep->size_loaded;
void *data;
@@ -334,7 +328,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
return 0;
if (periodic && !hsotg->dedicated_fifos) {
- u32 epsize = readl(hsotg->regs + DIEPTSIZ(hs_ep->index));
+ u32 epsize = dwc2_readl(hsotg->regs + DIEPTSIZ(hs_ep->index));
int size_left;
int size_done;
@@ -350,7 +344,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
* previous data has been completely sent.
*/
if (hs_ep->fifo_load != 0) {
- s3c_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);
+ dwc2_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);
return -ENOSPC;
}
@@ -371,11 +365,11 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
__func__, can_write);
if (can_write <= 0) {
- s3c_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);
+ dwc2_hsotg_en_gsint(hsotg, GINTSTS_PTXFEMP);
return -ENOSPC;
}
} else if (hsotg->dedicated_fifos && hs_ep->index != 0) {
- can_write = readl(hsotg->regs + DTXFSTS(hs_ep->index));
+ can_write = dwc2_readl(hsotg->regs + DTXFSTS(hs_ep->index));
can_write &= 0xffff;
can_write *= 4;
@@ -385,7 +379,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
"%s: no queue slots available (0x%08x)\n",
__func__, gnptxsts);
- s3c_hsotg_en_gsint(hsotg, GINTSTS_NPTXFEMP);
+ dwc2_hsotg_en_gsint(hsotg, GINTSTS_NPTXFEMP);
return -ENOSPC;
}
@@ -416,7 +410,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
/* it's needed only when we do not use dedicated fifos */
if (!hsotg->dedicated_fifos)
- s3c_hsotg_en_gsint(hsotg,
+ dwc2_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTXFEMP :
GINTSTS_NPTXFEMP);
}
@@ -445,7 +439,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
/* it's needed only when we do not use dedicated fifos */
if (!hsotg->dedicated_fifos)
- s3c_hsotg_en_gsint(hsotg,
+ dwc2_hsotg_en_gsint(hsotg,
periodic ? GINTSTS_PTXFEMP :
GINTSTS_NPTXFEMP);
}
@@ -477,7 +471,7 @@ static int s3c_hsotg_write_fifo(struct dwc2_hsotg *hsotg,
* Return the maximum data that can be queued in one go on a given endpoint
* so that transfers that are too long can be split.
*/
-static unsigned get_ep_limit(struct s3c_hsotg_ep *hs_ep)
+static unsigned get_ep_limit(struct dwc2_hsotg_ep *hs_ep)
{
int index = hs_ep->index;
unsigned maxsize;
@@ -510,7 +504,7 @@ static unsigned get_ep_limit(struct s3c_hsotg_ep *hs_ep)
}
/**
- * s3c_hsotg_start_req - start a USB request from an endpoint's queue
+ * dwc2_hsotg_start_req - start a USB request from an endpoint's queue
* @hsotg: The controller state.
* @hs_ep: The endpoint to process a request for
* @hs_req: The request to start.
@@ -519,9 +513,9 @@ static unsigned get_ep_limit(struct s3c_hsotg_ep *hs_ep)
* Start the given request running by setting the endpoint registers
* appropriately, and writing any data to the FIFOs.
*/
-static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
- struct s3c_hsotg_req *hs_req,
+static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
+ struct dwc2_hsotg_req *hs_req,
bool continuing)
{
struct usb_request *ureq = &hs_req->req;
@@ -552,13 +546,13 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
epsize_reg = dir_in ? DIEPTSIZ(index) : DOEPTSIZ(index);
dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x, ep %d, dir %s\n",
- __func__, readl(hsotg->regs + epctrl_reg), index,
+ __func__, dwc2_readl(hsotg->regs + epctrl_reg), index,
hs_ep->dir_in ? "in" : "out");
/* If endpoint is stalled, we will restart request later */
- ctrl = readl(hsotg->regs + epctrl_reg);
+ ctrl = dwc2_readl(hsotg->regs + epctrl_reg);
- if (ctrl & DXEPCTL_STALL) {
+ if (index && ctrl & DXEPCTL_STALL) {
dev_warn(hsotg->dev, "%s: ep%d is stalled\n", __func__, index);
return;
}
@@ -620,18 +614,18 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
hs_ep->req = hs_req;
/* write size / packets */
- writel(epsize, hsotg->regs + epsize_reg);
+ dwc2_writel(epsize, hsotg->regs + epsize_reg);
if (using_dma(hsotg) && !continuing) {
unsigned int dma_reg;
/*
* write DMA address to control register, buffer already
- * synced by s3c_hsotg_ep_queue().
+ * synced by dwc2_hsotg_ep_queue().
*/
dma_reg = dir_in ? DIEPDMA(index) : DOEPDMA(index);
- writel(ureq->dma, hsotg->regs + dma_reg);
+ dwc2_writel(ureq->dma, hsotg->regs + dma_reg);
dev_dbg(hsotg->dev, "%s: %pad => 0x%08x\n",
__func__, &ureq->dma, dma_reg);
@@ -647,7 +641,7 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
ctrl |= DXEPCTL_CNAK; /* clear NAK set by core */
dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl);
- writel(ctrl, hsotg->regs + epctrl_reg);
+ dwc2_writel(ctrl, hsotg->regs + epctrl_reg);
/*
* set these, it seems that DMA support increments past the end
@@ -661,7 +655,7 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
/* set these anyway, we may need them for non-periodic in */
hs_ep->fifo_load = 0;
- s3c_hsotg_write_fifo(hsotg, hs_ep, hs_req);
+ dwc2_hsotg_write_fifo(hsotg, hs_ep, hs_req);
}
/*
@@ -669,7 +663,7 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
* to debugging to see what is going on.
*/
if (dir_in)
- writel(DIEPMSK_INTKNTXFEMPMSK,
+ dwc2_writel(DIEPMSK_INTKNTXFEMPMSK,
hsotg->regs + DIEPINT(index));
/*
@@ -678,20 +672,20 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
*/
/* check ep is enabled */
- if (!(readl(hsotg->regs + epctrl_reg) & DXEPCTL_EPENA))
+ if (!(dwc2_readl(hsotg->regs + epctrl_reg) & DXEPCTL_EPENA))
dev_dbg(hsotg->dev,
"ep%d: failed to become enabled (DXEPCTL=0x%08x)?\n",
- index, readl(hsotg->regs + epctrl_reg));
+ index, dwc2_readl(hsotg->regs + epctrl_reg));
dev_dbg(hsotg->dev, "%s: DXEPCTL=0x%08x\n",
- __func__, readl(hsotg->regs + epctrl_reg));
+ __func__, dwc2_readl(hsotg->regs + epctrl_reg));
/* enable ep interrupts */
- s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1);
+ dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1);
}
/**
- * s3c_hsotg_map_dma - map the DMA memory being used for the request
+ * dwc2_hsotg_map_dma - map the DMA memory being used for the request
* @hsotg: The device state.
* @hs_ep: The endpoint the request is on.
* @req: The request being processed.
@@ -702,11 +696,11 @@ static void s3c_hsotg_start_req(struct dwc2_hsotg *hsotg,
* DMA memory, then we map the memory and mark our request to allow us to
* cleanup on completion.
*/
-static int s3c_hsotg_map_dma(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
+static int dwc2_hsotg_map_dma(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
struct usb_request *req)
{
- struct s3c_hsotg_req *hs_req = our_req(req);
+ struct dwc2_hsotg_req *hs_req = our_req(req);
int ret;
/* if the length is zero, ignore the DMA data */
@@ -726,8 +720,8 @@ dma_error:
return -EIO;
}
-static int s3c_hsotg_handle_unaligned_buf_start(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep, struct s3c_hsotg_req *hs_req)
+static int dwc2_hsotg_handle_unaligned_buf_start(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep, struct dwc2_hsotg_req *hs_req)
{
void *req_buf = hs_req->req.buf;
@@ -757,8 +751,8 @@ static int s3c_hsotg_handle_unaligned_buf_start(struct dwc2_hsotg *hsotg,
return 0;
}
-static void s3c_hsotg_handle_unaligned_buf_complete(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep, struct s3c_hsotg_req *hs_req)
+static void dwc2_hsotg_handle_unaligned_buf_complete(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep, struct dwc2_hsotg_req *hs_req)
{
/* If dma is not being used or buffer was aligned */
if (!using_dma(hsotg) || !hs_req->saved_req_buf)
@@ -779,11 +773,11 @@ static void s3c_hsotg_handle_unaligned_buf_complete(struct dwc2_hsotg *hsotg,
hs_req->saved_req_buf = NULL;
}
-static int s3c_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req,
+static int dwc2_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req,
gfp_t gfp_flags)
{
- struct s3c_hsotg_req *hs_req = our_req(req);
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_req *hs_req = our_req(req);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hs = hs_ep->parent;
bool first;
int ret;
@@ -792,18 +786,25 @@ static int s3c_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req,
ep->name, req, req->length, req->buf, req->no_interrupt,
req->zero, req->short_not_ok);
+ /* Prevent new request submission when controller is suspended */
+ if (hs->lx_state == DWC2_L2) {
+ dev_dbg(hs->dev, "%s: don't submit request while suspended\n",
+ __func__);
+ return -EAGAIN;
+ }
+
/* initialise status of the request */
INIT_LIST_HEAD(&hs_req->queue);
req->actual = 0;
req->status = -EINPROGRESS;
- ret = s3c_hsotg_handle_unaligned_buf_start(hs, hs_ep, hs_req);
+ ret = dwc2_hsotg_handle_unaligned_buf_start(hs, hs_ep, hs_req);
if (ret)
return ret;
/* if we're using DMA, sync the buffers as necessary */
if (using_dma(hs)) {
- ret = s3c_hsotg_map_dma(hs, hs_ep, req);
+ ret = dwc2_hsotg_map_dma(hs, hs_ep, req);
if (ret)
return ret;
}
@@ -812,51 +813,51 @@ static int s3c_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req,
list_add_tail(&hs_req->queue, &hs_ep->queue);
if (first)
- s3c_hsotg_start_req(hs, hs_ep, hs_req, false);
+ dwc2_hsotg_start_req(hs, hs_ep, hs_req, false);
return 0;
}
-static int s3c_hsotg_ep_queue_lock(struct usb_ep *ep, struct usb_request *req,
+static int dwc2_hsotg_ep_queue_lock(struct usb_ep *ep, struct usb_request *req,
gfp_t gfp_flags)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hs = hs_ep->parent;
unsigned long flags = 0;
int ret = 0;
spin_lock_irqsave(&hs->lock, flags);
- ret = s3c_hsotg_ep_queue(ep, req, gfp_flags);
+ ret = dwc2_hsotg_ep_queue(ep, req, gfp_flags);
spin_unlock_irqrestore(&hs->lock, flags);
return ret;
}
-static void s3c_hsotg_ep_free_request(struct usb_ep *ep,
+static void dwc2_hsotg_ep_free_request(struct usb_ep *ep,
struct usb_request *req)
{
- struct s3c_hsotg_req *hs_req = our_req(req);
+ struct dwc2_hsotg_req *hs_req = our_req(req);
kfree(hs_req);
}
/**
- * s3c_hsotg_complete_oursetup - setup completion callback
+ * dwc2_hsotg_complete_oursetup - setup completion callback
* @ep: The endpoint the request was on.
* @req: The request completed.
*
* Called on completion of any requests the driver itself
* submitted that need cleaning up.
*/
-static void s3c_hsotg_complete_oursetup(struct usb_ep *ep,
+static void dwc2_hsotg_complete_oursetup(struct usb_ep *ep,
struct usb_request *req)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hsotg = hs_ep->parent;
dev_dbg(hsotg->dev, "%s: ep %p, req %p\n", __func__, ep, req);
- s3c_hsotg_ep_free_request(ep, req);
+ dwc2_hsotg_ep_free_request(ep, req);
}
/**
@@ -867,10 +868,10 @@ static void s3c_hsotg_complete_oursetup(struct usb_ep *ep,
* Convert the given wIndex into a pointer to an driver endpoint
* structure, or return NULL if it is not a valid endpoint.
*/
-static struct s3c_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,
+static struct dwc2_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,
u32 windex)
{
- struct s3c_hsotg_ep *ep;
+ struct dwc2_hsotg_ep *ep;
int dir = (windex & USB_DIR_IN) ? 1 : 0;
int idx = windex & 0x7F;
@@ -889,14 +890,14 @@ static struct s3c_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg,
}
/**
- * s3c_hsotg_set_test_mode - Enable usb Test Modes
+ * dwc2_hsotg_set_test_mode - Enable usb Test Modes
* @hsotg: The driver state.
* @testmode: requested usb test mode
* Enable usb Test Mode requested by the Host.
*/
-static int s3c_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode)
+int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode)
{
- int dctl = readl(hsotg->regs + DCTL);
+ int dctl = dwc2_readl(hsotg->regs + DCTL);
dctl &= ~DCTL_TSTCTL_MASK;
switch (testmode) {
@@ -910,12 +911,12 @@ static int s3c_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode)
default:
return -EINVAL;
}
- writel(dctl, hsotg->regs + DCTL);
+ dwc2_writel(dctl, hsotg->regs + DCTL);
return 0;
}
/**
- * s3c_hsotg_send_reply - send reply to control request
+ * dwc2_hsotg_send_reply - send reply to control request
* @hsotg: The device state
* @ep: Endpoint 0
* @buff: Buffer for request
@@ -924,8 +925,8 @@ static int s3c_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode)
* Create a request and queue it on the given endpoint. This is useful as
* an internal method of sending replies to certain control requests, etc.
*/
-static int s3c_hsotg_send_reply(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *ep,
+static int dwc2_hsotg_send_reply(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *ep,
void *buff,
int length)
{
@@ -934,7 +935,7 @@ static int s3c_hsotg_send_reply(struct dwc2_hsotg *hsotg,
dev_dbg(hsotg->dev, "%s: buff %p, len %d\n", __func__, buff, length);
- req = s3c_hsotg_ep_alloc_request(&ep->ep, GFP_ATOMIC);
+ req = dwc2_hsotg_ep_alloc_request(&ep->ep, GFP_ATOMIC);
hsotg->ep0_reply = req;
if (!req) {
dev_warn(hsotg->dev, "%s: cannot alloc req\n", __func__);
@@ -948,12 +949,12 @@ static int s3c_hsotg_send_reply(struct dwc2_hsotg *hsotg,
* STATUS stage.
*/
req->zero = 0;
- req->complete = s3c_hsotg_complete_oursetup;
+ req->complete = dwc2_hsotg_complete_oursetup;
if (length)
memcpy(req->buf, buff, length);
- ret = s3c_hsotg_ep_queue(&ep->ep, req, GFP_ATOMIC);
+ ret = dwc2_hsotg_ep_queue(&ep->ep, req, GFP_ATOMIC);
if (ret) {
dev_warn(hsotg->dev, "%s: cannot queue req\n", __func__);
return ret;
@@ -963,15 +964,15 @@ static int s3c_hsotg_send_reply(struct dwc2_hsotg *hsotg,
}
/**
- * s3c_hsotg_process_req_status - process request GET_STATUS
+ * dwc2_hsotg_process_req_status - process request GET_STATUS
* @hsotg: The device state
* @ctrl: USB control request
*/
-static int s3c_hsotg_process_req_status(struct dwc2_hsotg *hsotg,
+static int dwc2_hsotg_process_req_status(struct dwc2_hsotg *hsotg,
struct usb_ctrlrequest *ctrl)
{
- struct s3c_hsotg_ep *ep0 = hsotg->eps_out[0];
- struct s3c_hsotg_ep *ep;
+ struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];
+ struct dwc2_hsotg_ep *ep;
__le16 reply;
int ret;
@@ -1008,7 +1009,7 @@ static int s3c_hsotg_process_req_status(struct dwc2_hsotg *hsotg,
if (le16_to_cpu(ctrl->wLength) != 2)
return -EINVAL;
- ret = s3c_hsotg_send_reply(hsotg, ep0, &reply, 2);
+ ret = dwc2_hsotg_send_reply(hsotg, ep0, &reply, 2);
if (ret) {
dev_err(hsotg->dev, "%s: failed to send reply\n", __func__);
return ret;
@@ -1017,7 +1018,7 @@ static int s3c_hsotg_process_req_status(struct dwc2_hsotg *hsotg,
return 1;
}
-static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value);
+static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value);
/**
* get_ep_head - return the first request on the endpoint
@@ -1025,27 +1026,27 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value);
*
* Get the first request on the endpoint.
*/
-static struct s3c_hsotg_req *get_ep_head(struct s3c_hsotg_ep *hs_ep)
+static struct dwc2_hsotg_req *get_ep_head(struct dwc2_hsotg_ep *hs_ep)
{
if (list_empty(&hs_ep->queue))
return NULL;
- return list_first_entry(&hs_ep->queue, struct s3c_hsotg_req, queue);
+ return list_first_entry(&hs_ep->queue, struct dwc2_hsotg_req, queue);
}
/**
- * s3c_hsotg_process_req_feature - process request {SET,CLEAR}_FEATURE
+ * dwc2_hsotg_process_req_feature - process request {SET,CLEAR}_FEATURE
* @hsotg: The device state
* @ctrl: USB control request
*/
-static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
+static int dwc2_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
struct usb_ctrlrequest *ctrl)
{
- struct s3c_hsotg_ep *ep0 = hsotg->eps_out[0];
- struct s3c_hsotg_req *hs_req;
+ struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];
+ struct dwc2_hsotg_req *hs_req;
bool restart;
bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE);
- struct s3c_hsotg_ep *ep;
+ struct dwc2_hsotg_ep *ep;
int ret;
bool halted;
u32 recip;
@@ -1069,7 +1070,7 @@ static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
return -EINVAL;
hsotg->test_mode = wIndex >> 8;
- ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
+ ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);
if (ret) {
dev_err(hsotg->dev,
"%s: failed to send reply\n", __func__);
@@ -1093,9 +1094,9 @@ static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
case USB_ENDPOINT_HALT:
halted = ep->halted;
- s3c_hsotg_ep_sethalt(&ep->ep, set);
+ dwc2_hsotg_ep_sethalt(&ep->ep, set);
- ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
+ ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);
if (ret) {
dev_err(hsotg->dev,
"%s: failed to send reply\n", __func__);
@@ -1129,7 +1130,7 @@ static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
restart = !list_empty(&ep->queue);
if (restart) {
hs_req = get_ep_head(ep);
- s3c_hsotg_start_req(hsotg, ep,
+ dwc2_hsotg_start_req(hsotg, ep,
hs_req, false);
}
}
@@ -1147,17 +1148,17 @@ static int s3c_hsotg_process_req_feature(struct dwc2_hsotg *hsotg,
return 1;
}
-static void s3c_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg);
+static void dwc2_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg);
/**
- * s3c_hsotg_stall_ep0 - stall ep0
+ * dwc2_hsotg_stall_ep0 - stall ep0
* @hsotg: The device state
*
* Set stall for ep0 as response for setup request.
*/
-static void s3c_hsotg_stall_ep0(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_stall_ep0(struct dwc2_hsotg *hsotg)
{
- struct s3c_hsotg_ep *ep0 = hsotg->eps_out[0];
+ struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];
u32 reg;
u32 ctrl;
@@ -1169,24 +1170,24 @@ static void s3c_hsotg_stall_ep0(struct dwc2_hsotg *hsotg)
* taken effect, so no need to clear later.
*/
- ctrl = readl(hsotg->regs + reg);
+ ctrl = dwc2_readl(hsotg->regs + reg);
ctrl |= DXEPCTL_STALL;
ctrl |= DXEPCTL_CNAK;
- writel(ctrl, hsotg->regs + reg);
+ dwc2_writel(ctrl, hsotg->regs + reg);
dev_dbg(hsotg->dev,
"written DXEPCTL=0x%08x to %08x (DXEPCTL=0x%08x)\n",
- ctrl, reg, readl(hsotg->regs + reg));
+ ctrl, reg, dwc2_readl(hsotg->regs + reg));
/*
* complete won't be called, so we enqueue
* setup request here
*/
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
}
/**
- * s3c_hsotg_process_control - process a control request
+ * dwc2_hsotg_process_control - process a control request
* @hsotg: The device state
* @ctrl: The control request received
*
@@ -1194,16 +1195,17 @@ static void s3c_hsotg_stall_ep0(struct dwc2_hsotg *hsotg)
* needs to work out what to do next (and whether to pass it on to the
* gadget driver).
*/
-static void s3c_hsotg_process_control(struct dwc2_hsotg *hsotg,
+static void dwc2_hsotg_process_control(struct dwc2_hsotg *hsotg,
struct usb_ctrlrequest *ctrl)
{
- struct s3c_hsotg_ep *ep0 = hsotg->eps_out[0];
+ struct dwc2_hsotg_ep *ep0 = hsotg->eps_out[0];
int ret = 0;
u32 dcfg;
- dev_dbg(hsotg->dev, "ctrl Req=%02x, Type=%02x, V=%04x, L=%04x\n",
- ctrl->bRequest, ctrl->bRequestType,
- ctrl->wValue, ctrl->wLength);
+ dev_dbg(hsotg->dev,
+ "ctrl Type=%02x, Req=%02x, V=%04x, I=%04x, L=%04x\n",
+ ctrl->bRequestType, ctrl->bRequest, ctrl->wValue,
+ ctrl->wIndex, ctrl->wLength);
if (ctrl->wLength == 0) {
ep0->dir_in = 1;
@@ -1220,24 +1222,24 @@ static void s3c_hsotg_process_control(struct dwc2_hsotg *hsotg,
switch (ctrl->bRequest) {
case USB_REQ_SET_ADDRESS:
hsotg->connected = 1;
- dcfg = readl(hsotg->regs + DCFG);
+ dcfg = dwc2_readl(hsotg->regs + DCFG);
dcfg &= ~DCFG_DEVADDR_MASK;
dcfg |= (le16_to_cpu(ctrl->wValue) <<
DCFG_DEVADDR_SHIFT) & DCFG_DEVADDR_MASK;
- writel(dcfg, hsotg->regs + DCFG);
+ dwc2_writel(dcfg, hsotg->regs + DCFG);
dev_info(hsotg->dev, "new address %d\n", ctrl->wValue);
- ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
+ ret = dwc2_hsotg_send_reply(hsotg, ep0, NULL, 0);
return;
case USB_REQ_GET_STATUS:
- ret = s3c_hsotg_process_req_status(hsotg, ctrl);
+ ret = dwc2_hsotg_process_req_status(hsotg, ctrl);
break;
case USB_REQ_CLEAR_FEATURE:
case USB_REQ_SET_FEATURE:
- ret = s3c_hsotg_process_req_feature(hsotg, ctrl);
+ ret = dwc2_hsotg_process_req_feature(hsotg, ctrl);
break;
}
}
@@ -1258,21 +1260,21 @@ static void s3c_hsotg_process_control(struct dwc2_hsotg *hsotg,
*/
if (ret < 0)
- s3c_hsotg_stall_ep0(hsotg);
+ dwc2_hsotg_stall_ep0(hsotg);
}
/**
- * s3c_hsotg_complete_setup - completion of a setup transfer
+ * dwc2_hsotg_complete_setup - completion of a setup transfer
* @ep: The endpoint the request was on.
* @req: The request completed.
*
* Called on completion of any requests the driver itself submitted for
* EP0 setup packets
*/
-static void s3c_hsotg_complete_setup(struct usb_ep *ep,
+static void dwc2_hsotg_complete_setup(struct usb_ep *ep,
struct usb_request *req)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hsotg = hs_ep->parent;
if (req->status < 0) {
@@ -1282,23 +1284,23 @@ static void s3c_hsotg_complete_setup(struct usb_ep *ep,
spin_lock(&hsotg->lock);
if (req->actual == 0)
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
else
- s3c_hsotg_process_control(hsotg, req->buf);
+ dwc2_hsotg_process_control(hsotg, req->buf);
spin_unlock(&hsotg->lock);
}
/**
- * s3c_hsotg_enqueue_setup - start a request for EP0 packets
+ * dwc2_hsotg_enqueue_setup - start a request for EP0 packets
* @hsotg: The device state.
*
* Enqueue a request on EP0 if necessary to received any SETUP packets
* received from the host.
*/
-static void s3c_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)
{
struct usb_request *req = hsotg->ctrl_req;
- struct s3c_hsotg_req *hs_req = our_req(req);
+ struct dwc2_hsotg_req *hs_req = our_req(req);
int ret;
dev_dbg(hsotg->dev, "%s: queueing setup request\n", __func__);
@@ -1306,7 +1308,7 @@ static void s3c_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)
req->zero = 0;
req->length = 8;
req->buf = hsotg->ctrl_buff;
- req->complete = s3c_hsotg_complete_setup;
+ req->complete = dwc2_hsotg_complete_setup;
if (!list_empty(&hs_req->queue)) {
dev_dbg(hsotg->dev, "%s already queued???\n", __func__);
@@ -1317,7 +1319,7 @@ static void s3c_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)
hsotg->eps_out[0]->send_zlp = 0;
hsotg->ep0_state = DWC2_EP0_SETUP;
- ret = s3c_hsotg_ep_queue(&hsotg->eps_out[0]->ep, req, GFP_ATOMIC);
+ ret = dwc2_hsotg_ep_queue(&hsotg->eps_out[0]->ep, req, GFP_ATOMIC);
if (ret < 0) {
dev_err(hsotg->dev, "%s: failed queue (%d)\n", __func__, ret);
/*
@@ -1327,8 +1329,8 @@ static void s3c_hsotg_enqueue_setup(struct dwc2_hsotg *hsotg)
}
}
-static void s3c_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep)
+static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep)
{
u32 ctrl;
u8 index = hs_ep->index;
@@ -1342,19 +1344,19 @@ static void s3c_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
dev_dbg(hsotg->dev, "Receiving zero-length packet on ep%d\n",
index);
- writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
- DXEPTSIZ_XFERSIZE(0), hsotg->regs +
- epsiz_reg);
+ dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
+ DXEPTSIZ_XFERSIZE(0), hsotg->regs +
+ epsiz_reg);
- ctrl = readl(hsotg->regs + epctl_reg);
+ ctrl = dwc2_readl(hsotg->regs + epctl_reg);
ctrl |= DXEPCTL_CNAK; /* clear NAK set by core */
ctrl |= DXEPCTL_EPENA; /* ensure ep enabled */
ctrl |= DXEPCTL_USBACTEP;
- writel(ctrl, hsotg->regs + epctl_reg);
+ dwc2_writel(ctrl, hsotg->regs + epctl_reg);
}
/**
- * s3c_hsotg_complete_request - complete a request given to us
+ * dwc2_hsotg_complete_request - complete a request given to us
* @hsotg: The device state.
* @hs_ep: The endpoint the request was on.
* @hs_req: The request to complete.
@@ -1366,9 +1368,9 @@ static void s3c_hsotg_program_zlp(struct dwc2_hsotg *hsotg,
*
* Note, expects the ep to already be locked as appropriate.
*/
-static void s3c_hsotg_complete_request(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
- struct s3c_hsotg_req *hs_req,
+static void dwc2_hsotg_complete_request(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
+ struct dwc2_hsotg_req *hs_req,
int result)
{
bool restart;
@@ -1389,14 +1391,14 @@ static void s3c_hsotg_complete_request(struct dwc2_hsotg *hsotg,
if (hs_req->req.status == -EINPROGRESS)
hs_req->req.status = result;
- s3c_hsotg_handle_unaligned_buf_complete(hsotg, hs_ep, hs_req);
+ if (using_dma(hsotg))
+ dwc2_hsotg_unmap_dma(hsotg, hs_ep, hs_req);
+
+ dwc2_hsotg_handle_unaligned_buf_complete(hsotg, hs_ep, hs_req);
hs_ep->req = NULL;
list_del_init(&hs_req->queue);
- if (using_dma(hsotg))
- s3c_hsotg_unmap_dma(hsotg, hs_ep, hs_req);
-
/*
* call the complete request with the locks off, just in case the
* request tries to queue more work for this endpoint.
@@ -1418,13 +1420,13 @@ static void s3c_hsotg_complete_request(struct dwc2_hsotg *hsotg,
restart = !list_empty(&hs_ep->queue);
if (restart) {
hs_req = get_ep_head(hs_ep);
- s3c_hsotg_start_req(hsotg, hs_ep, hs_req, false);
+ dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, false);
}
}
}
/**
- * s3c_hsotg_rx_data - receive data from the FIFO for an endpoint
+ * dwc2_hsotg_rx_data - receive data from the FIFO for an endpoint
* @hsotg: The device state.
* @ep_idx: The endpoint index for the data
* @size: The size of data in the fifo, in bytes
@@ -1433,10 +1435,10 @@ static void s3c_hsotg_complete_request(struct dwc2_hsotg *hsotg,
* endpoint, so sort out whether we need to read the data into a request
* that has been made for that endpoint.
*/
-static void s3c_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
+static void dwc2_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
{
- struct s3c_hsotg_ep *hs_ep = hsotg->eps_out[ep_idx];
- struct s3c_hsotg_req *hs_req = hs_ep->req;
+ struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[ep_idx];
+ struct dwc2_hsotg_req *hs_req = hs_ep->req;
void __iomem *fifo = hsotg->regs + EPFIFO(ep_idx);
int to_read;
int max_req;
@@ -1444,7 +1446,7 @@ static void s3c_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
if (!hs_req) {
- u32 epctl = readl(hsotg->regs + DOEPCTL(ep_idx));
+ u32 epctl = dwc2_readl(hsotg->regs + DOEPCTL(ep_idx));
int ptr;
dev_dbg(hsotg->dev,
@@ -1453,7 +1455,7 @@ static void s3c_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
/* dump the data from the FIFO, we've nothing we can do */
for (ptr = 0; ptr < size; ptr += 4)
- (void)readl(fifo);
+ (void)dwc2_readl(fifo);
return;
}
@@ -1487,7 +1489,7 @@ static void s3c_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
}
/**
- * s3c_hsotg_ep0_zlp - send/receive zero-length packet on control endpoint
+ * dwc2_hsotg_ep0_zlp - send/receive zero-length packet on control endpoint
* @hsotg: The device instance
* @dir_in: If IN zlp
*
@@ -1498,17 +1500,30 @@ static void s3c_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size)
* currently believed that we do not need to wait for any space in
* the TxFIFO.
*/
-static void s3c_hsotg_ep0_zlp(struct dwc2_hsotg *hsotg, bool dir_in)
+static void dwc2_hsotg_ep0_zlp(struct dwc2_hsotg *hsotg, bool dir_in)
{
/* eps_out[0] is used in both directions */
hsotg->eps_out[0]->dir_in = dir_in;
hsotg->ep0_state = dir_in ? DWC2_EP0_STATUS_IN : DWC2_EP0_STATUS_OUT;
- s3c_hsotg_program_zlp(hsotg, hsotg->eps_out[0]);
+ dwc2_hsotg_program_zlp(hsotg, hsotg->eps_out[0]);
+}
+
+static void dwc2_hsotg_change_ep_iso_parity(struct dwc2_hsotg *hsotg,
+ u32 epctl_reg)
+{
+ u32 ctrl;
+
+ ctrl = dwc2_readl(hsotg->regs + epctl_reg);
+ if (ctrl & DXEPCTL_EOFRNUM)
+ ctrl |= DXEPCTL_SETEVENFR;
+ else
+ ctrl |= DXEPCTL_SETODDFR;
+ dwc2_writel(ctrl, hsotg->regs + epctl_reg);
}
/**
- * s3c_hsotg_handle_outdone - handle receiving OutDone/SetupDone from RXFIFO
+ * dwc2_hsotg_handle_outdone - handle receiving OutDone/SetupDone from RXFIFO
* @hsotg: The device instance
* @epnum: The endpoint received from
*
@@ -1516,11 +1531,11 @@ static void s3c_hsotg_ep0_zlp(struct dwc2_hsotg *hsotg, bool dir_in)
* transfer for an OUT endpoint has been completed, either by a short
* packet or by the finish of a transfer.
*/
-static void s3c_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)
+static void dwc2_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)
{
- u32 epsize = readl(hsotg->regs + DOEPTSIZ(epnum));
- struct s3c_hsotg_ep *hs_ep = hsotg->eps_out[epnum];
- struct s3c_hsotg_req *hs_req = hs_ep->req;
+ u32 epsize = dwc2_readl(hsotg->regs + DOEPTSIZ(epnum));
+ struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[epnum];
+ struct dwc2_hsotg_req *hs_req = hs_ep->req;
struct usb_request *req = &hs_req->req;
unsigned size_left = DXEPTSIZ_XFERSIZE_GET(epsize);
int result = 0;
@@ -1532,8 +1547,8 @@ static void s3c_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)
if (epnum == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_OUT) {
dev_dbg(hsotg->dev, "zlp packet received\n");
- s3c_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
+ dwc2_hsotg_enqueue_setup(hsotg);
return;
}
@@ -1557,7 +1572,7 @@ static void s3c_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)
/* if there is more request to do, schedule new transfer */
if (req->actual < req->length && size_left == 0) {
- s3c_hsotg_start_req(hsotg, hs_ep, hs_req, true);
+ dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, true);
return;
}
@@ -1573,24 +1588,34 @@ static void s3c_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum)
if (epnum == 0 && hsotg->ep0_state == DWC2_EP0_DATA_OUT) {
/* Move to STATUS IN */
- s3c_hsotg_ep0_zlp(hsotg, true);
+ dwc2_hsotg_ep0_zlp(hsotg, true);
return;
}
- s3c_hsotg_complete_request(hsotg, hs_ep, hs_req, result);
+ /*
+ * Slave mode OUT transfers do not go through XferComplete so
+ * adjust the ISOC parity here.
+ */
+ if (!using_dma(hsotg)) {
+ hs_ep->has_correct_parity = 1;
+ if (hs_ep->isochronous && hs_ep->interval == 1)
+ dwc2_hsotg_change_ep_iso_parity(hsotg, DOEPCTL(epnum));
+ }
+
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, result);
}
/**
- * s3c_hsotg_read_frameno - read current frame number
+ * dwc2_hsotg_read_frameno - read current frame number
* @hsotg: The device instance
*
* Return the current frame number
*/
-static u32 s3c_hsotg_read_frameno(struct dwc2_hsotg *hsotg)
+static u32 dwc2_hsotg_read_frameno(struct dwc2_hsotg *hsotg)
{
u32 dsts;
- dsts = readl(hsotg->regs + DSTS);
+ dsts = dwc2_readl(hsotg->regs + DSTS);
dsts &= DSTS_SOFFN_MASK;
dsts >>= DSTS_SOFFN_SHIFT;
@@ -1598,7 +1623,7 @@ static u32 s3c_hsotg_read_frameno(struct dwc2_hsotg *hsotg)
}
/**
- * s3c_hsotg_handle_rx - RX FIFO has data
+ * dwc2_hsotg_handle_rx - RX FIFO has data
* @hsotg: The device instance
*
* The IRQ handler has detected that the RX FIFO has some data in it
@@ -1613,9 +1638,9 @@ static u32 s3c_hsotg_read_frameno(struct dwc2_hsotg *hsotg)
* as the actual data should be sent to the memory directly and we turn
* on the completion interrupts to get notifications of transfer completion.
*/
-static void s3c_hsotg_handle_rx(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_handle_rx(struct dwc2_hsotg *hsotg)
{
- u32 grxstsr = readl(hsotg->regs + GRXSTSP);
+ u32 grxstsr = dwc2_readl(hsotg->regs + GRXSTSP);
u32 epnum, status, size;
WARN_ON(using_dma(hsotg));
@@ -1636,55 +1661,55 @@ static void s3c_hsotg_handle_rx(struct dwc2_hsotg *hsotg)
case GRXSTS_PKTSTS_OUTDONE:
dev_dbg(hsotg->dev, "OutDone (Frame=0x%08x)\n",
- s3c_hsotg_read_frameno(hsotg));
+ dwc2_hsotg_read_frameno(hsotg));
if (!using_dma(hsotg))
- s3c_hsotg_handle_outdone(hsotg, epnum);
+ dwc2_hsotg_handle_outdone(hsotg, epnum);
break;
case GRXSTS_PKTSTS_SETUPDONE:
dev_dbg(hsotg->dev,
"SetupDone (Frame=0x%08x, DOPEPCTL=0x%08x)\n",
- s3c_hsotg_read_frameno(hsotg),
- readl(hsotg->regs + DOEPCTL(0)));
+ dwc2_hsotg_read_frameno(hsotg),
+ dwc2_readl(hsotg->regs + DOEPCTL(0)));
/*
- * Call s3c_hsotg_handle_outdone here if it was not called from
+ * Call dwc2_hsotg_handle_outdone here if it was not called from
* GRXSTS_PKTSTS_OUTDONE. That is, if the core didn't
* generate GRXSTS_PKTSTS_OUTDONE for setup packet.
*/
if (hsotg->ep0_state == DWC2_EP0_SETUP)
- s3c_hsotg_handle_outdone(hsotg, epnum);
+ dwc2_hsotg_handle_outdone(hsotg, epnum);
break;
case GRXSTS_PKTSTS_OUTRX:
- s3c_hsotg_rx_data(hsotg, epnum, size);
+ dwc2_hsotg_rx_data(hsotg, epnum, size);
break;
case GRXSTS_PKTSTS_SETUPRX:
dev_dbg(hsotg->dev,
"SetupRX (Frame=0x%08x, DOPEPCTL=0x%08x)\n",
- s3c_hsotg_read_frameno(hsotg),
- readl(hsotg->regs + DOEPCTL(0)));
+ dwc2_hsotg_read_frameno(hsotg),
+ dwc2_readl(hsotg->regs + DOEPCTL(0)));
WARN_ON(hsotg->ep0_state != DWC2_EP0_SETUP);
- s3c_hsotg_rx_data(hsotg, epnum, size);
+ dwc2_hsotg_rx_data(hsotg, epnum, size);
break;
default:
dev_warn(hsotg->dev, "%s: unknown status %08x\n",
__func__, grxstsr);
- s3c_hsotg_dump(hsotg);
+ dwc2_hsotg_dump(hsotg);
break;
}
}
/**
- * s3c_hsotg_ep0_mps - turn max packet size into register setting
+ * dwc2_hsotg_ep0_mps - turn max packet size into register setting
* @mps: The maximum packet size in bytes.
*/
-static u32 s3c_hsotg_ep0_mps(unsigned int mps)
+static u32 dwc2_hsotg_ep0_mps(unsigned int mps)
{
switch (mps) {
case 64:
@@ -1703,7 +1728,7 @@ static u32 s3c_hsotg_ep0_mps(unsigned int mps)
}
/**
- * s3c_hsotg_set_ep_maxpacket - set endpoint's max-packet field
+ * dwc2_hsotg_set_ep_maxpacket - set endpoint's max-packet field
* @hsotg: The driver state.
* @ep: The index number of the endpoint
* @mps: The maximum packet size in bytes
@@ -1711,10 +1736,10 @@ static u32 s3c_hsotg_ep0_mps(unsigned int mps)
* Configure the maximum packet size for the given endpoint, updating
* the hardware control registers to reflect this.
*/
-static void s3c_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg,
+static void dwc2_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg,
unsigned int ep, unsigned int mps, unsigned int dir_in)
{
- struct s3c_hsotg_ep *hs_ep;
+ struct dwc2_hsotg_ep *hs_ep;
void __iomem *regs = hsotg->regs;
u32 mpsval;
u32 mcval;
@@ -1726,7 +1751,7 @@ static void s3c_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg,
if (ep == 0) {
/* EP0 is a special case */
- mpsval = s3c_hsotg_ep0_mps(mps);
+ mpsval = dwc2_hsotg_ep0_mps(mps);
if (mpsval > 3)
goto bad_mps;
hs_ep->ep.maxpacket = mps;
@@ -1743,15 +1768,15 @@ static void s3c_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg,
}
if (dir_in) {
- reg = readl(regs + DIEPCTL(ep));
+ reg = dwc2_readl(regs + DIEPCTL(ep));
reg &= ~DXEPCTL_MPS_MASK;
reg |= mpsval;
- writel(reg, regs + DIEPCTL(ep));
+ dwc2_writel(reg, regs + DIEPCTL(ep));
} else {
- reg = readl(regs + DOEPCTL(ep));
+ reg = dwc2_readl(regs + DOEPCTL(ep));
reg &= ~DXEPCTL_MPS_MASK;
reg |= mpsval;
- writel(reg, regs + DOEPCTL(ep));
+ dwc2_writel(reg, regs + DOEPCTL(ep));
}
return;
@@ -1761,23 +1786,23 @@ bad_mps:
}
/**
- * s3c_hsotg_txfifo_flush - flush Tx FIFO
+ * dwc2_hsotg_txfifo_flush - flush Tx FIFO
* @hsotg: The driver state
* @idx: The index for the endpoint (0..15)
*/
-static void s3c_hsotg_txfifo_flush(struct dwc2_hsotg *hsotg, unsigned int idx)
+static void dwc2_hsotg_txfifo_flush(struct dwc2_hsotg *hsotg, unsigned int idx)
{
int timeout;
int val;
- writel(GRSTCTL_TXFNUM(idx) | GRSTCTL_TXFFLSH,
- hsotg->regs + GRSTCTL);
+ dwc2_writel(GRSTCTL_TXFNUM(idx) | GRSTCTL_TXFFLSH,
+ hsotg->regs + GRSTCTL);
/* wait until the fifo is flushed */
timeout = 100;
while (1) {
- val = readl(hsotg->regs + GRSTCTL);
+ val = dwc2_readl(hsotg->regs + GRSTCTL);
if ((val & (GRSTCTL_TXFFLSH)) == 0)
break;
@@ -1794,17 +1819,17 @@ static void s3c_hsotg_txfifo_flush(struct dwc2_hsotg *hsotg, unsigned int idx)
}
/**
- * s3c_hsotg_trytx - check to see if anything needs transmitting
+ * dwc2_hsotg_trytx - check to see if anything needs transmitting
* @hsotg: The driver state
* @hs_ep: The driver endpoint to check.
*
* Check to see if there is a request that has data to send, and if so
* make an attempt to write data into the FIFO.
*/
-static int s3c_hsotg_trytx(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep)
+static int dwc2_hsotg_trytx(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep)
{
- struct s3c_hsotg_req *hs_req = hs_ep->req;
+ struct dwc2_hsotg_req *hs_req = hs_ep->req;
if (!hs_ep->dir_in || !hs_req) {
/**
@@ -1812,7 +1837,7 @@ static int s3c_hsotg_trytx(struct dwc2_hsotg *hsotg,
* for endpoints, excepting ep0
*/
if (hs_ep->index != 0)
- s3c_hsotg_ctrl_epint(hsotg, hs_ep->index,
+ dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index,
hs_ep->dir_in, 0);
return 0;
}
@@ -1820,25 +1845,25 @@ static int s3c_hsotg_trytx(struct dwc2_hsotg *hsotg,
if (hs_req->req.actual < hs_req->req.length) {
dev_dbg(hsotg->dev, "trying to write more for ep%d\n",
hs_ep->index);
- return s3c_hsotg_write_fifo(hsotg, hs_ep, hs_req);
+ return dwc2_hsotg_write_fifo(hsotg, hs_ep, hs_req);
}
return 0;
}
/**
- * s3c_hsotg_complete_in - complete IN transfer
+ * dwc2_hsotg_complete_in - complete IN transfer
* @hsotg: The device state.
* @hs_ep: The endpoint that has just completed.
*
* An IN transfer has been completed, update the transfer's state and then
* call the relevant completion routines.
*/
-static void s3c_hsotg_complete_in(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep)
+static void dwc2_hsotg_complete_in(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep)
{
- struct s3c_hsotg_req *hs_req = hs_ep->req;
- u32 epsize = readl(hsotg->regs + DIEPTSIZ(hs_ep->index));
+ struct dwc2_hsotg_req *hs_req = hs_ep->req;
+ u32 epsize = dwc2_readl(hsotg->regs + DIEPTSIZ(hs_ep->index));
int size_left, size_done;
if (!hs_req) {
@@ -1849,19 +1874,19 @@ static void s3c_hsotg_complete_in(struct dwc2_hsotg *hsotg,
/* Finish ZLP handling for IN EP0 transactions */
if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_STATUS_IN) {
dev_dbg(hsotg->dev, "zlp packet sent\n");
- s3c_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
if (hsotg->test_mode) {
int ret;
- ret = s3c_hsotg_set_test_mode(hsotg, hsotg->test_mode);
+ ret = dwc2_hsotg_set_test_mode(hsotg, hsotg->test_mode);
if (ret < 0) {
dev_dbg(hsotg->dev, "Invalid Test #%d\n",
hsotg->test_mode);
- s3c_hsotg_stall_ep0(hsotg);
+ dwc2_hsotg_stall_ep0(hsotg);
return;
}
}
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
return;
}
@@ -1890,13 +1915,13 @@ static void s3c_hsotg_complete_in(struct dwc2_hsotg *hsotg,
if (!size_left && hs_req->req.actual < hs_req->req.length) {
dev_dbg(hsotg->dev, "%s trying more for req...\n", __func__);
- s3c_hsotg_start_req(hsotg, hs_ep, hs_req, true);
+ dwc2_hsotg_start_req(hsotg, hs_ep, hs_req, true);
return;
}
/* Zlp for all endpoints, for ep0 only in DATA IN stage */
if (hs_ep->send_zlp) {
- s3c_hsotg_program_zlp(hsotg, hs_ep);
+ dwc2_hsotg_program_zlp(hsotg, hs_ep);
hs_ep->send_zlp = 0;
/* transfer will be completed on next complete interrupt */
return;
@@ -1904,36 +1929,36 @@ static void s3c_hsotg_complete_in(struct dwc2_hsotg *hsotg,
if (hs_ep->index == 0 && hsotg->ep0_state == DWC2_EP0_DATA_IN) {
/* Move to STATUS OUT */
- s3c_hsotg_ep0_zlp(hsotg, false);
+ dwc2_hsotg_ep0_zlp(hsotg, false);
return;
}
- s3c_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
+ dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, 0);
}
/**
- * s3c_hsotg_epint - handle an in/out endpoint interrupt
+ * dwc2_hsotg_epint - handle an in/out endpoint interrupt
* @hsotg: The driver state
* @idx: The index for the endpoint (0..15)
* @dir_in: Set if this is an IN endpoint
*
* Process and clear any interrupt pending for an individual endpoint
*/
-static void s3c_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
+static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
int dir_in)
{
- struct s3c_hsotg_ep *hs_ep = index_to_ep(hsotg, idx, dir_in);
+ struct dwc2_hsotg_ep *hs_ep = index_to_ep(hsotg, idx, dir_in);
u32 epint_reg = dir_in ? DIEPINT(idx) : DOEPINT(idx);
u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx);
u32 epsiz_reg = dir_in ? DIEPTSIZ(idx) : DOEPTSIZ(idx);
u32 ints;
u32 ctrl;
- ints = readl(hsotg->regs + epint_reg);
- ctrl = readl(hsotg->regs + epctl_reg);
+ ints = dwc2_readl(hsotg->regs + epint_reg);
+ ctrl = dwc2_readl(hsotg->regs + epctl_reg);
/* Clear endpoint interrupts */
- writel(ints, hsotg->regs + epint_reg);
+ dwc2_writel(ints, hsotg->regs + epint_reg);
if (!hs_ep) {
dev_err(hsotg->dev, "%s:Interrupt for unconfigured ep%d(%s)\n",
@@ -1949,35 +1974,31 @@ static void s3c_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
ints &= ~DXEPINT_XFERCOMPL;
if (ints & DXEPINT_XFERCOMPL) {
- if (hs_ep->isochronous && hs_ep->interval == 1) {
- if (ctrl & DXEPCTL_EOFRNUM)
- ctrl |= DXEPCTL_SETEVENFR;
- else
- ctrl |= DXEPCTL_SETODDFR;
- writel(ctrl, hsotg->regs + epctl_reg);
- }
+ hs_ep->has_correct_parity = 1;
+ if (hs_ep->isochronous && hs_ep->interval == 1)
+ dwc2_hsotg_change_ep_iso_parity(hsotg, epctl_reg);
dev_dbg(hsotg->dev,
"%s: XferCompl: DxEPCTL=0x%08x, DXEPTSIZ=%08x\n",
- __func__, readl(hsotg->regs + epctl_reg),
- readl(hsotg->regs + epsiz_reg));
+ __func__, dwc2_readl(hsotg->regs + epctl_reg),
+ dwc2_readl(hsotg->regs + epsiz_reg));
/*
* we get OutDone from the FIFO, so we only need to look
* at completing IN requests here
*/
if (dir_in) {
- s3c_hsotg_complete_in(hsotg, hs_ep);
+ dwc2_hsotg_complete_in(hsotg, hs_ep);
if (idx == 0 && !hs_ep->req)
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
} else if (using_dma(hsotg)) {
/*
* We're using DMA, we need to fire an OutDone here
* as we ignore the RXFIFO.
*/
- s3c_hsotg_handle_outdone(hsotg, idx);
+ dwc2_hsotg_handle_outdone(hsotg, idx);
}
}
@@ -1985,16 +2006,16 @@ static void s3c_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
dev_dbg(hsotg->dev, "%s: EPDisbld\n", __func__);
if (dir_in) {
- int epctl = readl(hsotg->regs + epctl_reg);
+ int epctl = dwc2_readl(hsotg->regs + epctl_reg);
- s3c_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);
+ dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index);
if ((epctl & DXEPCTL_STALL) &&
(epctl & DXEPCTL_EPTYPE_BULK)) {
- int dctl = readl(hsotg->regs + DCTL);
+ int dctl = dwc2_readl(hsotg->regs + DCTL);
dctl |= DCTL_CGNPINNAK;
- writel(dctl, hsotg->regs + DCTL);
+ dwc2_writel(dctl, hsotg->regs + DCTL);
}
}
}
@@ -2016,7 +2037,7 @@ static void s3c_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
if (dir_in)
WARN_ON_ONCE(1);
else
- s3c_hsotg_handle_outdone(hsotg, 0);
+ dwc2_hsotg_handle_outdone(hsotg, 0);
}
}
@@ -2042,21 +2063,21 @@ static void s3c_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx,
dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n",
__func__, idx);
if (!using_dma(hsotg))
- s3c_hsotg_trytx(hsotg, hs_ep);
+ dwc2_hsotg_trytx(hsotg, hs_ep);
}
}
}
/**
- * s3c_hsotg_irq_enumdone - Handle EnumDone interrupt (enumeration done)
+ * dwc2_hsotg_irq_enumdone - Handle EnumDone interrupt (enumeration done)
* @hsotg: The device state.
*
* Handle updating the device settings after the enumeration phase has
* been completed.
*/
-static void s3c_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)
{
- u32 dsts = readl(hsotg->regs + DSTS);
+ u32 dsts = dwc2_readl(hsotg->regs + DSTS);
int ep0_mps = 0, ep_mps = 8;
/*
@@ -2108,23 +2129,23 @@ static void s3c_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)
if (ep0_mps) {
int i;
/* Initialize ep0 for both in and out directions */
- s3c_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 1);
- s3c_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 0);
+ dwc2_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 1);
+ dwc2_hsotg_set_ep_maxpacket(hsotg, 0, ep0_mps, 0);
for (i = 1; i < hsotg->num_of_eps; i++) {
if (hsotg->eps_in[i])
- s3c_hsotg_set_ep_maxpacket(hsotg, i, ep_mps, 1);
+ dwc2_hsotg_set_ep_maxpacket(hsotg, i, ep_mps, 1);
if (hsotg->eps_out[i])
- s3c_hsotg_set_ep_maxpacket(hsotg, i, ep_mps, 0);
+ dwc2_hsotg_set_ep_maxpacket(hsotg, i, ep_mps, 0);
}
}
/* ensure after enumeration our EP0 is active */
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",
- readl(hsotg->regs + DIEPCTL0),
- readl(hsotg->regs + DOEPCTL0));
+ dwc2_readl(hsotg->regs + DIEPCTL0),
+ dwc2_readl(hsotg->regs + DOEPCTL0));
}
/**
@@ -2137,34 +2158,34 @@ static void s3c_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg)
* completed with the given result code.
*/
static void kill_all_requests(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *ep,
+ struct dwc2_hsotg_ep *ep,
int result)
{
- struct s3c_hsotg_req *req, *treq;
+ struct dwc2_hsotg_req *req, *treq;
unsigned size;
ep->req = NULL;
list_for_each_entry_safe(req, treq, &ep->queue, queue)
- s3c_hsotg_complete_request(hsotg, ep, req,
+ dwc2_hsotg_complete_request(hsotg, ep, req,
result);
if (!hsotg->dedicated_fifos)
return;
- size = (readl(hsotg->regs + DTXFSTS(ep->index)) & 0xffff) * 4;
+ size = (dwc2_readl(hsotg->regs + DTXFSTS(ep->index)) & 0xffff) * 4;
if (size < ep->fifo_size)
- s3c_hsotg_txfifo_flush(hsotg, ep->fifo_index);
+ dwc2_hsotg_txfifo_flush(hsotg, ep->fifo_index);
}
/**
- * s3c_hsotg_disconnect - disconnect service
+ * dwc2_hsotg_disconnect - disconnect service
* @hsotg: The device state.
*
* The device has been disconnected. Remove all current
* transactions and signal the gadget driver that this
* has happened.
*/
-void s3c_hsotg_disconnect(struct dwc2_hsotg *hsotg)
+void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg)
{
unsigned ep;
@@ -2184,17 +2205,17 @@ void s3c_hsotg_disconnect(struct dwc2_hsotg *hsotg)
}
call_gadget(hsotg, disconnect);
+ hsotg->lx_state = DWC2_L3;
}
-EXPORT_SYMBOL_GPL(s3c_hsotg_disconnect);
/**
- * s3c_hsotg_irq_fifoempty - TX FIFO empty interrupt handler
+ * dwc2_hsotg_irq_fifoempty - TX FIFO empty interrupt handler
* @hsotg: The device state:
* @periodic: True if this is a periodic FIFO interrupt
*/
-static void s3c_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
+static void dwc2_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
{
- struct s3c_hsotg_ep *ep;
+ struct dwc2_hsotg_ep *ep;
int epno, ret;
/* look through for any more data to transmit */
@@ -2211,7 +2232,7 @@ static void s3c_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
(!periodic && ep->periodic))
continue;
- ret = s3c_hsotg_trytx(hsotg, ep);
+ ret = dwc2_hsotg_trytx(hsotg, ep);
if (ret < 0)
break;
}
@@ -2223,12 +2244,12 @@ static void s3c_hsotg_irq_fifoempty(struct dwc2_hsotg *hsotg, bool periodic)
GINTSTS_RXFLVL)
/**
- * s3c_hsotg_corereset - issue softreset to the core
+ * dwc2_hsotg_corereset - issue softreset to the core
* @hsotg: The device state
*
* Issue a soft reset to the core, and await the core finishing it.
*/
-static int s3c_hsotg_corereset(struct dwc2_hsotg *hsotg)
+static int dwc2_hsotg_corereset(struct dwc2_hsotg *hsotg)
{
int timeout;
u32 grstctl;
@@ -2236,11 +2257,11 @@ static int s3c_hsotg_corereset(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, "resetting core\n");
/* issue soft reset */
- writel(GRSTCTL_CSFTRST, hsotg->regs + GRSTCTL);
+ dwc2_writel(GRSTCTL_CSFTRST, hsotg->regs + GRSTCTL);
timeout = 10000;
do {
- grstctl = readl(hsotg->regs + GRSTCTL);
+ grstctl = dwc2_readl(hsotg->regs + GRSTCTL);
} while ((grstctl & GRSTCTL_CSFTRST) && timeout-- > 0);
if (grstctl & GRSTCTL_CSFTRST) {
@@ -2251,7 +2272,7 @@ static int s3c_hsotg_corereset(struct dwc2_hsotg *hsotg)
timeout = 10000;
while (1) {
- u32 grstctl = readl(hsotg->regs + GRSTCTL);
+ u32 grstctl = dwc2_readl(hsotg->regs + GRSTCTL);
if (timeout-- < 0) {
dev_info(hsotg->dev,
@@ -2271,18 +2292,23 @@ static int s3c_hsotg_corereset(struct dwc2_hsotg *hsotg)
}
/**
- * s3c_hsotg_core_init - issue softreset to the core
+ * dwc2_hsotg_core_init - issue softreset to the core
* @hsotg: The device state
*
* Issue a soft reset to the core, and await the core finishing it.
*/
-void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
+void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
bool is_usb_reset)
{
+ u32 intmsk;
u32 val;
+ /* Kill any ep0 requests as controller will be reinitialized */
+ kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);
+
if (!is_usb_reset)
- s3c_hsotg_corereset(hsotg);
+ if (dwc2_hsotg_corereset(hsotg))
+ return;
/*
* we must now enable ep0 ready for host detection and then
@@ -2291,38 +2317,42 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
/* set the PLL on, remove the HNP/SRP and set the PHY */
val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
- writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
+ dwc2_writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
(val << GUSBCFG_USBTRDTIM_SHIFT), hsotg->regs + GUSBCFG);
- s3c_hsotg_init_fifo(hsotg);
+ dwc2_hsotg_init_fifo(hsotg);
if (!is_usb_reset)
__orr32(hsotg->regs + DCTL, DCTL_SFTDISCON);
- writel(DCFG_EPMISCNT(1) | DCFG_DEVSPD_HS, hsotg->regs + DCFG);
+ dwc2_writel(DCFG_EPMISCNT(1) | DCFG_DEVSPD_HS, hsotg->regs + DCFG);
/* Clear any pending OTG interrupts */
- writel(0xffffffff, hsotg->regs + GOTGINT);
+ dwc2_writel(0xffffffff, hsotg->regs + GOTGINT);
/* Clear any pending interrupts */
- writel(0xffffffff, hsotg->regs + GINTSTS);
-
- writel(GINTSTS_ERLYSUSP | GINTSTS_SESSREQINT |
+ dwc2_writel(0xffffffff, hsotg->regs + GINTSTS);
+ intmsk = GINTSTS_ERLYSUSP | GINTSTS_SESSREQINT |
GINTSTS_GOUTNAKEFF | GINTSTS_GINNAKEFF |
- GINTSTS_CONIDSTSCHNG | GINTSTS_USBRST |
+ GINTSTS_USBRST | GINTSTS_RESETDET |
GINTSTS_ENUMDONE | GINTSTS_OTGINT |
- GINTSTS_USBSUSP | GINTSTS_WKUPINT,
- hsotg->regs + GINTMSK);
+ GINTSTS_USBSUSP | GINTSTS_WKUPINT |
+ GINTSTS_INCOMPL_SOIN | GINTSTS_INCOMPL_SOOUT;
+
+ if (hsotg->core_params->external_id_pin_ctl <= 0)
+ intmsk |= GINTSTS_CONIDSTSCHNG;
+
+ dwc2_writel(intmsk, hsotg->regs + GINTMSK);
if (using_dma(hsotg))
- writel(GAHBCFG_GLBL_INTR_EN | GAHBCFG_DMA_EN |
- (GAHBCFG_HBSTLEN_INCR4 << GAHBCFG_HBSTLEN_SHIFT),
- hsotg->regs + GAHBCFG);
+ dwc2_writel(GAHBCFG_GLBL_INTR_EN | GAHBCFG_DMA_EN |
+ (GAHBCFG_HBSTLEN_INCR4 << GAHBCFG_HBSTLEN_SHIFT),
+ hsotg->regs + GAHBCFG);
else
- writel(((hsotg->dedicated_fifos) ? (GAHBCFG_NP_TXF_EMP_LVL |
- GAHBCFG_P_TXF_EMP_LVL) : 0) |
- GAHBCFG_GLBL_INTR_EN,
- hsotg->regs + GAHBCFG);
+ dwc2_writel(((hsotg->dedicated_fifos) ?
+ (GAHBCFG_NP_TXF_EMP_LVL |
+ GAHBCFG_P_TXF_EMP_LVL) : 0) |
+ GAHBCFG_GLBL_INTR_EN, hsotg->regs + GAHBCFG);
/*
* If INTknTXFEmpMsk is enabled, it's important to disable ep interrupts
@@ -2330,7 +2360,7 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
* interrupts.
*/
- writel(((hsotg->dedicated_fifos && !using_dma(hsotg)) ?
+ dwc2_writel(((hsotg->dedicated_fifos && !using_dma(hsotg)) ?
DIEPMSK_TXFIFOEMPTY | DIEPMSK_INTKNTXFEMPMSK : 0) |
DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK |
DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |
@@ -2341,20 +2371,20 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
* don't need XferCompl, we get that from RXFIFO in slave mode. In
* DMA mode we may need this.
*/
- writel((using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK |
+ dwc2_writel((using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK |
DIEPMSK_TIMEOUTMSK) : 0) |
DOEPMSK_EPDISBLDMSK | DOEPMSK_AHBERRMSK |
DOEPMSK_SETUPMSK,
hsotg->regs + DOEPMSK);
- writel(0, hsotg->regs + DAINTMSK);
+ dwc2_writel(0, hsotg->regs + DAINTMSK);
dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",
- readl(hsotg->regs + DIEPCTL0),
- readl(hsotg->regs + DOEPCTL0));
+ dwc2_readl(hsotg->regs + DIEPCTL0),
+ dwc2_readl(hsotg->regs + DOEPCTL0));
/* enable in and out endpoint interrupts */
- s3c_hsotg_en_gsint(hsotg, GINTSTS_OEPINT | GINTSTS_IEPINT);
+ dwc2_hsotg_en_gsint(hsotg, GINTSTS_OEPINT | GINTSTS_IEPINT);
/*
* Enable the RXFIFO when in slave mode, as this is how we collect
@@ -2362,11 +2392,11 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
* things we cannot process, so do not use it.
*/
if (!using_dma(hsotg))
- s3c_hsotg_en_gsint(hsotg, GINTSTS_RXFLVL);
+ dwc2_hsotg_en_gsint(hsotg, GINTSTS_RXFLVL);
/* Enable interrupts for EP0 in and out */
- s3c_hsotg_ctrl_epint(hsotg, 0, 0, 1);
- s3c_hsotg_ctrl_epint(hsotg, 0, 1, 1);
+ dwc2_hsotg_ctrl_epint(hsotg, 0, 0, 1);
+ dwc2_hsotg_ctrl_epint(hsotg, 0, 1, 1);
if (!is_usb_reset) {
__orr32(hsotg->regs + DCTL, DCTL_PWRONPRGDONE);
@@ -2374,7 +2404,7 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
__bic32(hsotg->regs + DCTL, DCTL_PWRONPRGDONE);
}
- dev_dbg(hsotg->dev, "DCTL=0x%08x\n", readl(hsotg->regs + DCTL));
+ dev_dbg(hsotg->dev, "DCTL=0x%08x\n", dwc2_readl(hsotg->regs + DCTL));
/*
* DxEPCTL_USBActEp says RO in manual, but seems to be set by
@@ -2382,23 +2412,23 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
*/
/* set to read 1 8byte packet */
- writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
+ dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) |
DXEPTSIZ_XFERSIZE(8), hsotg->regs + DOEPTSIZ0);
- writel(s3c_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |
+ dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |
DXEPCTL_CNAK | DXEPCTL_EPENA |
DXEPCTL_USBACTEP,
hsotg->regs + DOEPCTL0);
/* enable, but don't activate EP0in */
- writel(s3c_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |
+ dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) |
DXEPCTL_USBACTEP, hsotg->regs + DIEPCTL0);
- s3c_hsotg_enqueue_setup(hsotg);
+ dwc2_hsotg_enqueue_setup(hsotg);
dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",
- readl(hsotg->regs + DIEPCTL0),
- readl(hsotg->regs + DOEPCTL0));
+ dwc2_readl(hsotg->regs + DIEPCTL0),
+ dwc2_readl(hsotg->regs + DOEPCTL0));
/* clear global NAKs */
val = DCTL_CGOUTNAK | DCTL_CGNPINNAK;
@@ -2409,27 +2439,27 @@ void s3c_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
/* must be at-least 3ms to allow bus to see disconnect */
mdelay(3);
- hsotg->last_rst = jiffies;
+ hsotg->lx_state = DWC2_L0;
}
-static void s3c_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)
{
/* set the soft-disconnect bit */
__orr32(hsotg->regs + DCTL, DCTL_SFTDISCON);
}
-void s3c_hsotg_core_connect(struct dwc2_hsotg *hsotg)
+void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg)
{
/* remove the soft-disconnect and let's go */
__bic32(hsotg->regs + DCTL, DCTL_SFTDISCON);
}
/**
- * s3c_hsotg_irq - handle device interrupt
+ * dwc2_hsotg_irq - handle device interrupt
* @irq: The IRQ number triggered
* @pw: The pw value when registered the handler.
*/
-static irqreturn_t s3c_hsotg_irq(int irq, void *pw)
+static irqreturn_t dwc2_hsotg_irq(int irq, void *pw)
{
struct dwc2_hsotg *hsotg = pw;
int retry_count = 8;
@@ -2438,23 +2468,53 @@ static irqreturn_t s3c_hsotg_irq(int irq, void *pw)
spin_lock(&hsotg->lock);
irq_retry:
- gintsts = readl(hsotg->regs + GINTSTS);
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintsts = dwc2_readl(hsotg->regs + GINTSTS);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
dev_dbg(hsotg->dev, "%s: %08x %08x (%08x) retry %d\n",
__func__, gintsts, gintsts & gintmsk, gintmsk, retry_count);
gintsts &= gintmsk;
+ if (gintsts & GINTSTS_RESETDET) {
+ dev_dbg(hsotg->dev, "%s: USBRstDet\n", __func__);
+
+ dwc2_writel(GINTSTS_RESETDET, hsotg->regs + GINTSTS);
+
+ /* This event must be used only if controller is suspended */
+ if (hsotg->lx_state == DWC2_L2) {
+ dwc2_exit_hibernation(hsotg, true);
+ hsotg->lx_state = DWC2_L0;
+ }
+ }
+
+ if (gintsts & (GINTSTS_USBRST | GINTSTS_RESETDET)) {
+
+ u32 usb_status = dwc2_readl(hsotg->regs + GOTGCTL);
+ u32 connected = hsotg->connected;
+
+ dev_dbg(hsotg->dev, "%s: USBRst\n", __func__);
+ dev_dbg(hsotg->dev, "GNPTXSTS=%08x\n",
+ dwc2_readl(hsotg->regs + GNPTXSTS));
+
+ dwc2_writel(GINTSTS_USBRST, hsotg->regs + GINTSTS);
+
+ /* Report disconnection if it is not already done. */
+ dwc2_hsotg_disconnect(hsotg);
+
+ if (usb_status & GOTGCTL_BSESVLD && connected)
+ dwc2_hsotg_core_init_disconnected(hsotg, true);
+ }
+
if (gintsts & GINTSTS_ENUMDONE) {
- writel(GINTSTS_ENUMDONE, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_ENUMDONE, hsotg->regs + GINTSTS);
- s3c_hsotg_irq_enumdone(hsotg);
+ dwc2_hsotg_irq_enumdone(hsotg);
}
if (gintsts & (GINTSTS_OEPINT | GINTSTS_IEPINT)) {
- u32 daint = readl(hsotg->regs + DAINT);
- u32 daintmsk = readl(hsotg->regs + DAINTMSK);
+ u32 daint = dwc2_readl(hsotg->regs + DAINT);
+ u32 daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
u32 daint_out, daint_in;
int ep;
@@ -2467,38 +2527,13 @@ irq_retry:
for (ep = 0; ep < hsotg->num_of_eps && daint_out;
ep++, daint_out >>= 1) {
if (daint_out & 1)
- s3c_hsotg_epint(hsotg, ep, 0);
+ dwc2_hsotg_epint(hsotg, ep, 0);
}
for (ep = 0; ep < hsotg->num_of_eps && daint_in;
ep++, daint_in >>= 1) {
if (daint_in & 1)
- s3c_hsotg_epint(hsotg, ep, 1);
- }
- }
-
- if (gintsts & GINTSTS_USBRST) {
-
- u32 usb_status = readl(hsotg->regs + GOTGCTL);
-
- dev_dbg(hsotg->dev, "%s: USBRst\n", __func__);
- dev_dbg(hsotg->dev, "GNPTXSTS=%08x\n",
- readl(hsotg->regs + GNPTXSTS));
-
- writel(GINTSTS_USBRST, hsotg->regs + GINTSTS);
-
- /* Report disconnection if it is not already done. */
- s3c_hsotg_disconnect(hsotg);
-
- if (usb_status & GOTGCTL_BSESVLD) {
- if (time_after(jiffies, hsotg->last_rst +
- msecs_to_jiffies(200))) {
-
- kill_all_requests(hsotg, hsotg->eps_out[0],
- -ECONNRESET);
-
- s3c_hsotg_core_init_disconnected(hsotg, true);
- }
+ dwc2_hsotg_epint(hsotg, ep, 1);
}
}
@@ -2513,8 +2548,8 @@ irq_retry:
* it needs re-enabling
*/
- s3c_hsotg_disable_gsint(hsotg, GINTSTS_NPTXFEMP);
- s3c_hsotg_irq_fifoempty(hsotg, false);
+ dwc2_hsotg_disable_gsint(hsotg, GINTSTS_NPTXFEMP);
+ dwc2_hsotg_irq_fifoempty(hsotg, false);
}
if (gintsts & GINTSTS_PTXFEMP) {
@@ -2522,23 +2557,23 @@ irq_retry:
/* See note in GINTSTS_NPTxFEmp */
- s3c_hsotg_disable_gsint(hsotg, GINTSTS_PTXFEMP);
- s3c_hsotg_irq_fifoempty(hsotg, true);
+ dwc2_hsotg_disable_gsint(hsotg, GINTSTS_PTXFEMP);
+ dwc2_hsotg_irq_fifoempty(hsotg, true);
}
if (gintsts & GINTSTS_RXFLVL) {
/*
* note, since GINTSTS_RxFLvl doubles as FIFO-not-empty,
- * we need to retry s3c_hsotg_handle_rx if this is still
+ * we need to retry dwc2_hsotg_handle_rx if this is still
* set.
*/
- s3c_hsotg_handle_rx(hsotg);
+ dwc2_hsotg_handle_rx(hsotg);
}
if (gintsts & GINTSTS_ERLYSUSP) {
dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n");
- writel(GINTSTS_ERLYSUSP, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_ERLYSUSP, hsotg->regs + GINTSTS);
}
/*
@@ -2550,17 +2585,51 @@ irq_retry:
if (gintsts & GINTSTS_GOUTNAKEFF) {
dev_info(hsotg->dev, "GOUTNakEff triggered\n");
- writel(DCTL_CGOUTNAK, hsotg->regs + DCTL);
+ dwc2_writel(DCTL_CGOUTNAK, hsotg->regs + DCTL);
- s3c_hsotg_dump(hsotg);
+ dwc2_hsotg_dump(hsotg);
}
if (gintsts & GINTSTS_GINNAKEFF) {
dev_info(hsotg->dev, "GINNakEff triggered\n");
- writel(DCTL_CGNPINNAK, hsotg->regs + DCTL);
+ dwc2_writel(DCTL_CGNPINNAK, hsotg->regs + DCTL);
+
+ dwc2_hsotg_dump(hsotg);
+ }
+
+ if (gintsts & GINTSTS_INCOMPL_SOIN) {
+ u32 idx, epctl_reg;
+ struct dwc2_hsotg_ep *hs_ep;
+
+ dev_dbg(hsotg->dev, "%s: GINTSTS_INCOMPL_SOIN\n", __func__);
+ for (idx = 1; idx < hsotg->num_of_eps; idx++) {
+ hs_ep = hsotg->eps_in[idx];
+
+ if (!hs_ep->isochronous || hs_ep->has_correct_parity)
+ continue;
+
+ epctl_reg = DIEPCTL(idx);
+ dwc2_hsotg_change_ep_iso_parity(hsotg, epctl_reg);
+ }
+ dwc2_writel(GINTSTS_INCOMPL_SOIN, hsotg->regs + GINTSTS);
+ }
+
+ if (gintsts & GINTSTS_INCOMPL_SOOUT) {
+ u32 idx, epctl_reg;
+ struct dwc2_hsotg_ep *hs_ep;
+
+ dev_dbg(hsotg->dev, "%s: GINTSTS_INCOMPL_SOOUT\n", __func__);
+ for (idx = 1; idx < hsotg->num_of_eps; idx++) {
+ hs_ep = hsotg->eps_out[idx];
+
+ if (!hs_ep->isochronous || hs_ep->has_correct_parity)
+ continue;
- s3c_hsotg_dump(hsotg);
+ epctl_reg = DOEPCTL(idx);
+ dwc2_hsotg_change_ep_iso_parity(hsotg, epctl_reg);
+ }
+ dwc2_writel(GINTSTS_INCOMPL_SOOUT, hsotg->regs + GINTSTS);
}
/*
@@ -2577,16 +2646,16 @@ irq_retry:
}
/**
- * s3c_hsotg_ep_enable - enable the given endpoint
+ * dwc2_hsotg_ep_enable - enable the given endpoint
* @ep: The USB endpint to configure
* @desc: The USB endpoint descriptor to configure with.
*
* This is called from the USB gadget code's usb_ep_enable().
*/
-static int s3c_hsotg_ep_enable(struct usb_ep *ep,
+static int dwc2_hsotg_ep_enable(struct usb_ep *ep,
const struct usb_endpoint_descriptor *desc)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hsotg = hs_ep->parent;
unsigned long flags;
unsigned int index = hs_ep->index;
@@ -2613,10 +2682,10 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
mps = usb_endpoint_maxp(desc);
- /* note, we handle this here instead of s3c_hsotg_set_ep_maxpacket */
+ /* note, we handle this here instead of dwc2_hsotg_set_ep_maxpacket */
epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
- epctrl = readl(hsotg->regs + epctrl_reg);
+ epctrl = dwc2_readl(hsotg->regs + epctrl_reg);
dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x from 0x%08x\n",
__func__, epctrl, epctrl_reg);
@@ -2642,13 +2711,14 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
epctrl |= DXEPCTL_SNAK;
/* update the endpoint state */
- s3c_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps, dir_in);
+ dwc2_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps, dir_in);
/* default, set to non-periodic */
hs_ep->isochronous = 0;
hs_ep->periodic = 0;
hs_ep->halted = 0;
hs_ep->interval = desc->bInterval;
+ hs_ep->has_correct_parity = 0;
if (hs_ep->interval > 1 && hs_ep->mc > 1)
dev_err(hsotg->dev, "MC > 1 when interval is not 1\n");
@@ -2700,7 +2770,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
for (i = 1; i < hsotg->num_of_eps; ++i) {
if (hsotg->fifo_map & (1<<i))
continue;
- val = readl(hsotg->regs + DPTXFSIZN(i));
+ val = dwc2_readl(hsotg->regs + DPTXFSIZN(i));
val = (val >> FIFOSIZE_DEPTH_SHIFT)*4;
if (val < size)
continue;
@@ -2729,12 +2799,12 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
dev_dbg(hsotg->dev, "%s: write DxEPCTL=0x%08x\n",
__func__, epctrl);
- writel(epctrl, hsotg->regs + epctrl_reg);
+ dwc2_writel(epctrl, hsotg->regs + epctrl_reg);
dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x\n",
- __func__, readl(hsotg->regs + epctrl_reg));
+ __func__, dwc2_readl(hsotg->regs + epctrl_reg));
/* enable the endpoint interrupt */
- s3c_hsotg_ctrl_epint(hsotg, index, dir_in, 1);
+ dwc2_hsotg_ctrl_epint(hsotg, index, dir_in, 1);
error:
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -2742,12 +2812,12 @@ error:
}
/**
- * s3c_hsotg_ep_disable - disable given endpoint
+ * dwc2_hsotg_ep_disable - disable given endpoint
* @ep: The endpoint to disable.
*/
-static int s3c_hsotg_ep_disable_force(struct usb_ep *ep, bool force)
+static int dwc2_hsotg_ep_disable(struct usb_ep *ep)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hsotg = hs_ep->parent;
int dir_in = hs_ep->dir_in;
int index = hs_ep->index;
@@ -2770,16 +2840,16 @@ static int s3c_hsotg_ep_disable_force(struct usb_ep *ep, bool force)
hs_ep->fifo_index = 0;
hs_ep->fifo_size = 0;
- ctrl = readl(hsotg->regs + epctrl_reg);
+ ctrl = dwc2_readl(hsotg->regs + epctrl_reg);
ctrl &= ~DXEPCTL_EPENA;
ctrl &= ~DXEPCTL_USBACTEP;
ctrl |= DXEPCTL_SNAK;
dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl);
- writel(ctrl, hsotg->regs + epctrl_reg);
+ dwc2_writel(ctrl, hsotg->regs + epctrl_reg);
/* disable endpoint interrupts */
- s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0);
+ dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0);
/* terminate all requests with shutdown */
kill_all_requests(hsotg, hs_ep, -ESHUTDOWN);
@@ -2788,18 +2858,14 @@ static int s3c_hsotg_ep_disable_force(struct usb_ep *ep, bool force)
return 0;
}
-static int s3c_hsotg_ep_disable(struct usb_ep *ep)
-{
- return s3c_hsotg_ep_disable_force(ep, false);
-}
/**
* on_list - check request is on the given endpoint
* @ep: The endpoint to check.
* @test: The request to test if it is on the endpoint.
*/
-static bool on_list(struct s3c_hsotg_ep *ep, struct s3c_hsotg_req *test)
+static bool on_list(struct dwc2_hsotg_ep *ep, struct dwc2_hsotg_req *test)
{
- struct s3c_hsotg_req *req, *treq;
+ struct dwc2_hsotg_req *req, *treq;
list_for_each_entry_safe(req, treq, &ep->queue, queue) {
if (req == test)
@@ -2809,15 +2875,88 @@ static bool on_list(struct s3c_hsotg_ep *ep, struct s3c_hsotg_req *test)
return false;
}
+static int dwc2_hsotg_wait_bit_set(struct dwc2_hsotg *hs_otg, u32 reg,
+ u32 bit, u32 timeout)
+{
+ u32 i;
+
+ for (i = 0; i < timeout; i++) {
+ if (dwc2_readl(hs_otg->regs + reg) & bit)
+ return 0;
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep)
+{
+ u32 epctrl_reg;
+ u32 epint_reg;
+
+ epctrl_reg = hs_ep->dir_in ? DIEPCTL(hs_ep->index) :
+ DOEPCTL(hs_ep->index);
+ epint_reg = hs_ep->dir_in ? DIEPINT(hs_ep->index) :
+ DOEPINT(hs_ep->index);
+
+ dev_dbg(hsotg->dev, "%s: stopping transfer on %s\n", __func__,
+ hs_ep->name);
+ if (hs_ep->dir_in) {
+ __orr32(hsotg->regs + epctrl_reg, DXEPCTL_SNAK);
+ /* Wait for Nak effect */
+ if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg,
+ DXEPINT_INEPNAKEFF, 100))
+ dev_warn(hsotg->dev,
+ "%s: timeout DIEPINT.NAKEFF\n", __func__);
+ } else {
+ /* Clear any pending nak effect interrupt */
+ dwc2_writel(GINTSTS_GINNAKEFF, hsotg->regs + GINTSTS);
+
+ __orr32(hsotg->regs + DCTL, DCTL_SGNPINNAK);
+
+ /* Wait for global nak to take effect */
+ if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS,
+ GINTSTS_GINNAKEFF, 100))
+ dev_warn(hsotg->dev,
+ "%s: timeout GINTSTS.GINNAKEFF\n", __func__);
+ }
+
+ /* Disable ep */
+ __orr32(hsotg->regs + epctrl_reg, DXEPCTL_EPDIS | DXEPCTL_SNAK);
+
+ /* Wait for ep to be disabled */
+ if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg, DXEPINT_EPDISBLD, 100))
+ dev_warn(hsotg->dev,
+ "%s: timeout DOEPCTL.EPDisable\n", __func__);
+
+ if (hs_ep->dir_in) {
+ if (hsotg->dedicated_fifos) {
+ dwc2_writel(GRSTCTL_TXFNUM(hs_ep->fifo_index) |
+ GRSTCTL_TXFFLSH, hsotg->regs + GRSTCTL);
+ /* Wait for fifo flush */
+ if (dwc2_hsotg_wait_bit_set(hsotg, GRSTCTL,
+ GRSTCTL_TXFFLSH, 100))
+ dev_warn(hsotg->dev,
+ "%s: timeout flushing fifos\n",
+ __func__);
+ }
+ /* TODO: Flush shared tx fifo */
+ } else {
+ /* Remove global NAKs */
+ __bic32(hsotg->regs + DCTL, DCTL_SGNPINNAK);
+ }
+}
+
/**
- * s3c_hsotg_ep_dequeue - dequeue given endpoint
+ * dwc2_hsotg_ep_dequeue - dequeue given endpoint
* @ep: The endpoint to dequeue.
* @req: The request to be removed from a queue.
*/
-static int s3c_hsotg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
+static int dwc2_hsotg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
{
- struct s3c_hsotg_req *hs_req = our_req(req);
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_req *hs_req = our_req(req);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hs = hs_ep->parent;
unsigned long flags;
@@ -2830,20 +2969,24 @@ static int s3c_hsotg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
return -EINVAL;
}
- s3c_hsotg_complete_request(hs, hs_ep, hs_req, -ECONNRESET);
+ /* Dequeue already started request */
+ if (req == &hs_ep->req->req)
+ dwc2_hsotg_ep_stop_xfr(hs, hs_ep);
+
+ dwc2_hsotg_complete_request(hs, hs_ep, hs_req, -ECONNRESET);
spin_unlock_irqrestore(&hs->lock, flags);
return 0;
}
/**
- * s3c_hsotg_ep_sethalt - set halt on a given endpoint
+ * dwc2_hsotg_ep_sethalt - set halt on a given endpoint
* @ep: The endpoint to set halt.
* @value: Set or unset the halt.
*/
-static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
+static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hs = hs_ep->parent;
int index = hs_ep->index;
u32 epreg;
@@ -2854,7 +2997,7 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
if (index == 0) {
if (value)
- s3c_hsotg_stall_ep0(hs);
+ dwc2_hsotg_stall_ep0(hs);
else
dev_warn(hs->dev,
"%s: can't clear halt on ep0\n", __func__);
@@ -2863,10 +3006,10 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
if (hs_ep->dir_in) {
epreg = DIEPCTL(index);
- epctl = readl(hs->regs + epreg);
+ epctl = dwc2_readl(hs->regs + epreg);
if (value) {
- epctl |= DXEPCTL_STALL + DXEPCTL_SNAK;
+ epctl |= DXEPCTL_STALL | DXEPCTL_SNAK;
if (epctl & DXEPCTL_EPENA)
epctl |= DXEPCTL_EPDIS;
} else {
@@ -2876,11 +3019,11 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
xfertype == DXEPCTL_EPTYPE_INTERRUPT)
epctl |= DXEPCTL_SETD0PID;
}
- writel(epctl, hs->regs + epreg);
+ dwc2_writel(epctl, hs->regs + epreg);
} else {
epreg = DOEPCTL(index);
- epctl = readl(hs->regs + epreg);
+ epctl = dwc2_readl(hs->regs + epreg);
if (value)
epctl |= DXEPCTL_STALL;
@@ -2891,7 +3034,7 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
xfertype == DXEPCTL_EPTYPE_INTERRUPT)
epctl |= DXEPCTL_SETD0PID;
}
- writel(epctl, hs->regs + epreg);
+ dwc2_writel(epctl, hs->regs + epreg);
}
hs_ep->halted = value;
@@ -2900,97 +3043,53 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
}
/**
- * s3c_hsotg_ep_sethalt_lock - set halt on a given endpoint with lock held
+ * dwc2_hsotg_ep_sethalt_lock - set halt on a given endpoint with lock held
* @ep: The endpoint to set halt.
* @value: Set or unset the halt.
*/
-static int s3c_hsotg_ep_sethalt_lock(struct usb_ep *ep, int value)
+static int dwc2_hsotg_ep_sethalt_lock(struct usb_ep *ep, int value)
{
- struct s3c_hsotg_ep *hs_ep = our_ep(ep);
+ struct dwc2_hsotg_ep *hs_ep = our_ep(ep);
struct dwc2_hsotg *hs = hs_ep->parent;
unsigned long flags = 0;
int ret = 0;
spin_lock_irqsave(&hs->lock, flags);
- ret = s3c_hsotg_ep_sethalt(ep, value);
+ ret = dwc2_hsotg_ep_sethalt(ep, value);
spin_unlock_irqrestore(&hs->lock, flags);
return ret;
}
-static struct usb_ep_ops s3c_hsotg_ep_ops = {
- .enable = s3c_hsotg_ep_enable,
- .disable = s3c_hsotg_ep_disable,
- .alloc_request = s3c_hsotg_ep_alloc_request,
- .free_request = s3c_hsotg_ep_free_request,
- .queue = s3c_hsotg_ep_queue_lock,
- .dequeue = s3c_hsotg_ep_dequeue,
- .set_halt = s3c_hsotg_ep_sethalt_lock,
+static struct usb_ep_ops dwc2_hsotg_ep_ops = {
+ .enable = dwc2_hsotg_ep_enable,
+ .disable = dwc2_hsotg_ep_disable,
+ .alloc_request = dwc2_hsotg_ep_alloc_request,
+ .free_request = dwc2_hsotg_ep_free_request,
+ .queue = dwc2_hsotg_ep_queue_lock,
+ .dequeue = dwc2_hsotg_ep_dequeue,
+ .set_halt = dwc2_hsotg_ep_sethalt_lock,
/* note, don't believe we have any call for the fifo routines */
};
/**
- * s3c_hsotg_phy_enable - enable platform phy dev
- * @hsotg: The driver state
- *
- * A wrapper for platform code responsible for controlling
- * low-level USB code
- */
-static void s3c_hsotg_phy_enable(struct dwc2_hsotg *hsotg)
-{
- struct platform_device *pdev = to_platform_device(hsotg->dev);
-
- dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev);
-
- if (hsotg->uphy)
- usb_phy_init(hsotg->uphy);
- else if (hsotg->plat && hsotg->plat->phy_init)
- hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
- else {
- phy_init(hsotg->phy);
- phy_power_on(hsotg->phy);
- }
-}
-
-/**
- * s3c_hsotg_phy_disable - disable platform phy dev
- * @hsotg: The driver state
- *
- * A wrapper for platform code responsible for controlling
- * low-level USB code
- */
-static void s3c_hsotg_phy_disable(struct dwc2_hsotg *hsotg)
-{
- struct platform_device *pdev = to_platform_device(hsotg->dev);
-
- if (hsotg->uphy)
- usb_phy_shutdown(hsotg->uphy);
- else if (hsotg->plat && hsotg->plat->phy_exit)
- hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
- else {
- phy_power_off(hsotg->phy);
- phy_exit(hsotg->phy);
- }
-}
-
-/**
- * s3c_hsotg_init - initalize the usb core
+ * dwc2_hsotg_init - initalize the usb core
* @hsotg: The driver state
*/
-static void s3c_hsotg_init(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg)
{
u32 trdtim;
/* unmask subset of endpoint interrupts */
- writel(DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |
- DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK,
- hsotg->regs + DIEPMSK);
+ dwc2_writel(DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |
+ DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK,
+ hsotg->regs + DIEPMSK);
- writel(DOEPMSK_SETUPMSK | DOEPMSK_AHBERRMSK |
- DOEPMSK_EPDISBLDMSK | DOEPMSK_XFERCOMPLMSK,
- hsotg->regs + DOEPMSK);
+ dwc2_writel(DOEPMSK_SETUPMSK | DOEPMSK_AHBERRMSK |
+ DOEPMSK_EPDISBLDMSK | DOEPMSK_XFERCOMPLMSK,
+ hsotg->regs + DOEPMSK);
- writel(0, hsotg->regs + DAINTMSK);
+ dwc2_writel(0, hsotg->regs + DAINTMSK);
/* Be in disconnected state until gadget is registered */
__orr32(hsotg->regs + DCTL, DCTL_SFTDISCON);
@@ -2998,14 +3097,14 @@ static void s3c_hsotg_init(struct dwc2_hsotg *hsotg)
/* setup fifos */
dev_dbg(hsotg->dev, "GRXFSIZ=0x%08x, GNPTXFSIZ=0x%08x\n",
- readl(hsotg->regs + GRXFSIZ),
- readl(hsotg->regs + GNPTXFSIZ));
+ dwc2_readl(hsotg->regs + GRXFSIZ),
+ dwc2_readl(hsotg->regs + GNPTXFSIZ));
- s3c_hsotg_init_fifo(hsotg);
+ dwc2_hsotg_init_fifo(hsotg);
/* set the PLL on, remove the HNP/SRP and set the PHY */
trdtim = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
- writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
+ dwc2_writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
(trdtim << GUSBCFG_USBTRDTIM_SHIFT),
hsotg->regs + GUSBCFG);
@@ -3014,14 +3113,14 @@ static void s3c_hsotg_init(struct dwc2_hsotg *hsotg)
}
/**
- * s3c_hsotg_udc_start - prepare the udc for work
+ * dwc2_hsotg_udc_start - prepare the udc for work
* @gadget: The usb gadget state
* @driver: The usb gadget driver
*
* Perform initialization to prepare udc device and driver
* to work.
*/
-static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
+static int dwc2_hsotg_udc_start(struct usb_gadget *gadget,
struct usb_gadget_driver *driver)
{
struct dwc2_hsotg *hsotg = to_hsotg(gadget);
@@ -3046,7 +3145,6 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
return -EINVAL;
}
- mutex_lock(&hsotg->init_mutex);
WARN_ON(hsotg->driver);
driver->driver.bus = NULL;
@@ -3054,45 +3152,38 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
hsotg->gadget.dev.of_node = hsotg->dev->of_node;
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
- clk_enable(hsotg->clk);
-
- ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
- if (ret) {
- dev_err(hsotg->dev, "failed to enable supplies: %d\n", ret);
- goto err;
+ if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) {
+ ret = dwc2_lowlevel_hw_enable(hsotg);
+ if (ret)
+ goto err;
}
- s3c_hsotg_phy_enable(hsotg);
if (!IS_ERR_OR_NULL(hsotg->uphy))
otg_set_peripheral(hsotg->uphy->otg, &hsotg->gadget);
spin_lock_irqsave(&hsotg->lock, flags);
- s3c_hsotg_init(hsotg);
- s3c_hsotg_core_init_disconnected(hsotg, false);
+ dwc2_hsotg_init(hsotg);
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
hsotg->enabled = 0;
spin_unlock_irqrestore(&hsotg->lock, flags);
dev_info(hsotg->dev, "bound driver %s\n", driver->driver.name);
- mutex_unlock(&hsotg->init_mutex);
-
return 0;
err:
- mutex_unlock(&hsotg->init_mutex);
hsotg->driver = NULL;
return ret;
}
/**
- * s3c_hsotg_udc_stop - stop the udc
+ * dwc2_hsotg_udc_stop - stop the udc
* @gadget: The usb gadget state
* @driver: The usb gadget driver
*
* Stop udc hw block and stay tunned for future transmissions
*/
-static int s3c_hsotg_udc_stop(struct usb_gadget *gadget)
+static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget)
{
struct dwc2_hsotg *hsotg = to_hsotg(gadget);
unsigned long flags = 0;
@@ -3101,14 +3192,12 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget)
if (!hsotg)
return -ENODEV;
- mutex_lock(&hsotg->init_mutex);
-
/* all endpoints should be shutdown */
for (ep = 1; ep < hsotg->num_of_eps; ep++) {
if (hsotg->eps_in[ep])
- s3c_hsotg_ep_disable(&hsotg->eps_in[ep]->ep);
+ dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep);
if (hsotg->eps_out[ep])
- s3c_hsotg_ep_disable(&hsotg->eps_out[ep]->ep);
+ dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep);
}
spin_lock_irqsave(&hsotg->lock, flags);
@@ -3121,64 +3210,63 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget)
if (!IS_ERR_OR_NULL(hsotg->uphy))
otg_set_peripheral(hsotg->uphy->otg, NULL);
- s3c_hsotg_phy_disable(hsotg);
- regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
-
- clk_disable(hsotg->clk);
-
- mutex_unlock(&hsotg->init_mutex);
+ if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+ dwc2_lowlevel_hw_disable(hsotg);
return 0;
}
/**
- * s3c_hsotg_gadget_getframe - read the frame number
+ * dwc2_hsotg_gadget_getframe - read the frame number
* @gadget: The usb gadget state
*
* Read the {micro} frame number
*/
-static int s3c_hsotg_gadget_getframe(struct usb_gadget *gadget)
+static int dwc2_hsotg_gadget_getframe(struct usb_gadget *gadget)
{
- return s3c_hsotg_read_frameno(to_hsotg(gadget));
+ return dwc2_hsotg_read_frameno(to_hsotg(gadget));
}
/**
- * s3c_hsotg_pullup - connect/disconnect the USB PHY
+ * dwc2_hsotg_pullup - connect/disconnect the USB PHY
* @gadget: The usb gadget state
* @is_on: Current state of the USB PHY
*
* Connect/Disconnect the USB PHY pullup
*/
-static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on)
+static int dwc2_hsotg_pullup(struct usb_gadget *gadget, int is_on)
{
struct dwc2_hsotg *hsotg = to_hsotg(gadget);
unsigned long flags = 0;
- dev_dbg(hsotg->dev, "%s: is_on: %d\n", __func__, is_on);
+ dev_dbg(hsotg->dev, "%s: is_on: %d op_state: %d\n", __func__, is_on,
+ hsotg->op_state);
+
+ /* Don't modify pullup state while in host mode */
+ if (hsotg->op_state != OTG_STATE_B_PERIPHERAL) {
+ hsotg->enabled = is_on;
+ return 0;
+ }
- mutex_lock(&hsotg->init_mutex);
spin_lock_irqsave(&hsotg->lock, flags);
if (is_on) {
- clk_enable(hsotg->clk);
hsotg->enabled = 1;
- s3c_hsotg_core_init_disconnected(hsotg, false);
- s3c_hsotg_core_connect(hsotg);
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
+ dwc2_hsotg_core_connect(hsotg);
} else {
- s3c_hsotg_core_disconnect(hsotg);
- s3c_hsotg_disconnect(hsotg);
+ dwc2_hsotg_core_disconnect(hsotg);
+ dwc2_hsotg_disconnect(hsotg);
hsotg->enabled = 0;
- clk_disable(hsotg->clk);
}
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
spin_unlock_irqrestore(&hsotg->lock, flags);
- mutex_unlock(&hsotg->init_mutex);
return 0;
}
-static int s3c_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
+static int dwc2_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
{
struct dwc2_hsotg *hsotg = to_hsotg(gadget);
unsigned long flags;
@@ -3186,15 +3274,22 @@ static int s3c_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
dev_dbg(hsotg->dev, "%s: is_active: %d\n", __func__, is_active);
spin_lock_irqsave(&hsotg->lock, flags);
+ /*
+ * If controller is hibernated, it must exit from hibernation
+ * before being initialized / de-initialized
+ */
+ if (hsotg->lx_state == DWC2_L2)
+ dwc2_exit_hibernation(hsotg, false);
+
if (is_active) {
- /* Kill any ep0 requests as controller will be reinitialized */
- kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);
- s3c_hsotg_core_init_disconnected(hsotg, false);
+ hsotg->op_state = OTG_STATE_B_PERIPHERAL;
+
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
if (hsotg->enabled)
- s3c_hsotg_core_connect(hsotg);
+ dwc2_hsotg_core_connect(hsotg);
} else {
- s3c_hsotg_core_disconnect(hsotg);
- s3c_hsotg_disconnect(hsotg);
+ dwc2_hsotg_core_disconnect(hsotg);
+ dwc2_hsotg_disconnect(hsotg);
}
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -3202,13 +3297,13 @@ static int s3c_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
}
/**
- * s3c_hsotg_vbus_draw - report bMaxPower field
+ * dwc2_hsotg_vbus_draw - report bMaxPower field
* @gadget: The usb gadget state
* @mA: Amount of current
*
* Report how much power the device may consume to the phy.
*/
-static int s3c_hsotg_vbus_draw(struct usb_gadget *gadget, unsigned mA)
+static int dwc2_hsotg_vbus_draw(struct usb_gadget *gadget, unsigned mA)
{
struct dwc2_hsotg *hsotg = to_hsotg(gadget);
@@ -3217,17 +3312,17 @@ static int s3c_hsotg_vbus_draw(struct usb_gadget *gadget, unsigned mA)
return usb_phy_set_power(hsotg->uphy, mA);
}
-static const struct usb_gadget_ops s3c_hsotg_gadget_ops = {
- .get_frame = s3c_hsotg_gadget_getframe,
- .udc_start = s3c_hsotg_udc_start,
- .udc_stop = s3c_hsotg_udc_stop,
- .pullup = s3c_hsotg_pullup,
- .vbus_session = s3c_hsotg_vbus_session,
- .vbus_draw = s3c_hsotg_vbus_draw,
+static const struct usb_gadget_ops dwc2_hsotg_gadget_ops = {
+ .get_frame = dwc2_hsotg_gadget_getframe,
+ .udc_start = dwc2_hsotg_udc_start,
+ .udc_stop = dwc2_hsotg_udc_stop,
+ .pullup = dwc2_hsotg_pullup,
+ .vbus_session = dwc2_hsotg_vbus_session,
+ .vbus_draw = dwc2_hsotg_vbus_draw,
};
/**
- * s3c_hsotg_initep - initialise a single endpoint
+ * dwc2_hsotg_initep - initialise a single endpoint
* @hsotg: The device state.
* @hs_ep: The endpoint to be initialised.
* @epnum: The endpoint number
@@ -3236,8 +3331,8 @@ static const struct usb_gadget_ops s3c_hsotg_gadget_ops = {
* creation) to give to the gadget driver. Setup the endpoint name, any
* direction information and other state that may be required.
*/
-static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
- struct s3c_hsotg_ep *hs_ep,
+static void dwc2_hsotg_initep(struct dwc2_hsotg *hsotg,
+ struct dwc2_hsotg_ep *hs_ep,
int epnum,
bool dir_in)
{
@@ -3265,7 +3360,20 @@ static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
hs_ep->parent = hsotg;
hs_ep->ep.name = hs_ep->name;
usb_ep_set_maxpacket_limit(&hs_ep->ep, epnum ? 1024 : EP0_MPS_LIMIT);
- hs_ep->ep.ops = &s3c_hsotg_ep_ops;
+ hs_ep->ep.ops = &dwc2_hsotg_ep_ops;
+
+ if (epnum == 0) {
+ hs_ep->ep.caps.type_control = true;
+ } else {
+ hs_ep->ep.caps.type_iso = true;
+ hs_ep->ep.caps.type_bulk = true;
+ hs_ep->ep.caps.type_int = true;
+ }
+
+ if (dir_in)
+ hs_ep->ep.caps.dir_in = true;
+ else
+ hs_ep->ep.caps.dir_out = true;
/*
* if we're using dma, we need to set the next-endpoint pointer
@@ -3275,19 +3383,19 @@ static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
if (using_dma(hsotg)) {
u32 next = DXEPCTL_NEXTEP((epnum + 1) % 15);
if (dir_in)
- writel(next, hsotg->regs + DIEPCTL(epnum));
+ dwc2_writel(next, hsotg->regs + DIEPCTL(epnum));
else
- writel(next, hsotg->regs + DOEPCTL(epnum));
+ dwc2_writel(next, hsotg->regs + DOEPCTL(epnum));
}
}
/**
- * s3c_hsotg_hw_cfg - read HW configuration registers
+ * dwc2_hsotg_hw_cfg - read HW configuration registers
* @param: The device state
*
* Read the USB core HW configuration registers
*/
-static int s3c_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
+static int dwc2_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
{
u32 cfg;
u32 ep_type;
@@ -3295,41 +3403,41 @@ static int s3c_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
/* check hardware configuration */
- cfg = readl(hsotg->regs + GHWCFG2);
+ cfg = dwc2_readl(hsotg->regs + GHWCFG2);
hsotg->num_of_eps = (cfg >> GHWCFG2_NUM_DEV_EP_SHIFT) & 0xF;
/* Add ep0 */
hsotg->num_of_eps++;
- hsotg->eps_in[0] = devm_kzalloc(hsotg->dev, sizeof(struct s3c_hsotg_ep),
+ hsotg->eps_in[0] = devm_kzalloc(hsotg->dev, sizeof(struct dwc2_hsotg_ep),
GFP_KERNEL);
if (!hsotg->eps_in[0])
return -ENOMEM;
- /* Same s3c_hsotg_ep is used in both directions for ep0 */
+ /* Same dwc2_hsotg_ep is used in both directions for ep0 */
hsotg->eps_out[0] = hsotg->eps_in[0];
- cfg = readl(hsotg->regs + GHWCFG1);
+ cfg = dwc2_readl(hsotg->regs + GHWCFG1);
for (i = 1, cfg >>= 2; i < hsotg->num_of_eps; i++, cfg >>= 2) {
ep_type = cfg & 3;
/* Direction in or both */
if (!(ep_type & 2)) {
hsotg->eps_in[i] = devm_kzalloc(hsotg->dev,
- sizeof(struct s3c_hsotg_ep), GFP_KERNEL);
+ sizeof(struct dwc2_hsotg_ep), GFP_KERNEL);
if (!hsotg->eps_in[i])
return -ENOMEM;
}
/* Direction out or both */
if (!(ep_type & 1)) {
hsotg->eps_out[i] = devm_kzalloc(hsotg->dev,
- sizeof(struct s3c_hsotg_ep), GFP_KERNEL);
+ sizeof(struct dwc2_hsotg_ep), GFP_KERNEL);
if (!hsotg->eps_out[i])
return -ENOMEM;
}
}
- cfg = readl(hsotg->regs + GHWCFG3);
+ cfg = dwc2_readl(hsotg->regs + GHWCFG3);
hsotg->fifo_mem = (cfg >> GHWCFG3_DFIFO_DEPTH_SHIFT);
- cfg = readl(hsotg->regs + GHWCFG4);
+ cfg = dwc2_readl(hsotg->regs + GHWCFG4);
hsotg->dedicated_fifos = (cfg >> GHWCFG4_DED_FIFO_SHIFT) & 1;
dev_info(hsotg->dev, "EPs: %d, %s fifos, %d entries in SPRAM\n",
@@ -3340,10 +3448,10 @@ static int s3c_hsotg_hw_cfg(struct dwc2_hsotg *hsotg)
}
/**
- * s3c_hsotg_dump - dump state of the udc
+ * dwc2_hsotg_dump - dump state of the udc
* @param: The device state
*/
-static void s3c_hsotg_dump(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg)
{
#ifdef DEBUG
struct device *dev = hsotg->dev;
@@ -3352,19 +3460,19 @@ static void s3c_hsotg_dump(struct dwc2_hsotg *hsotg)
int idx;
dev_info(dev, "DCFG=0x%08x, DCTL=0x%08x, DIEPMSK=%08x\n",
- readl(regs + DCFG), readl(regs + DCTL),
- readl(regs + DIEPMSK));
+ dwc2_readl(regs + DCFG), dwc2_readl(regs + DCTL),
+ dwc2_readl(regs + DIEPMSK));
dev_info(dev, "GAHBCFG=0x%08x, GHWCFG1=0x%08x\n",
- readl(regs + GAHBCFG), readl(regs + GHWCFG1));
+ dwc2_readl(regs + GAHBCFG), dwc2_readl(regs + GHWCFG1));
dev_info(dev, "GRXFSIZ=0x%08x, GNPTXFSIZ=0x%08x\n",
- readl(regs + GRXFSIZ), readl(regs + GNPTXFSIZ));
+ dwc2_readl(regs + GRXFSIZ), dwc2_readl(regs + GNPTXFSIZ));
/* show periodic fifo settings */
for (idx = 1; idx < hsotg->num_of_eps; idx++) {
- val = readl(regs + DPTXFSIZN(idx));
+ val = dwc2_readl(regs + DPTXFSIZN(idx));
dev_info(dev, "DPTx[%d] FSize=%d, StAddr=0x%08x\n", idx,
val >> FIFOSIZE_DEPTH_SHIFT,
val & FIFOSIZE_STARTADDR_MASK);
@@ -3373,424 +3481,26 @@ static void s3c_hsotg_dump(struct dwc2_hsotg *hsotg)
for (idx = 0; idx < hsotg->num_of_eps; idx++) {
dev_info(dev,
"ep%d-in: EPCTL=0x%08x, SIZ=0x%08x, DMA=0x%08x\n", idx,
- readl(regs + DIEPCTL(idx)),
- readl(regs + DIEPTSIZ(idx)),
- readl(regs + DIEPDMA(idx)));
+ dwc2_readl(regs + DIEPCTL(idx)),
+ dwc2_readl(regs + DIEPTSIZ(idx)),
+ dwc2_readl(regs + DIEPDMA(idx)));
- val = readl(regs + DOEPCTL(idx));
+ val = dwc2_readl(regs + DOEPCTL(idx));
dev_info(dev,
"ep%d-out: EPCTL=0x%08x, SIZ=0x%08x, DMA=0x%08x\n",
- idx, readl(regs + DOEPCTL(idx)),
- readl(regs + DOEPTSIZ(idx)),
- readl(regs + DOEPDMA(idx)));
+ idx, dwc2_readl(regs + DOEPCTL(idx)),
+ dwc2_readl(regs + DOEPTSIZ(idx)),
+ dwc2_readl(regs + DOEPDMA(idx)));
}
dev_info(dev, "DVBUSDIS=0x%08x, DVBUSPULSE=%08x\n",
- readl(regs + DVBUSDIS), readl(regs + DVBUSPULSE));
+ dwc2_readl(regs + DVBUSDIS), dwc2_readl(regs + DVBUSPULSE));
#endif
}
-/**
- * testmode_write - debugfs: change usb test mode
- * @seq: The seq file to write to.
- * @v: Unused parameter.
- *
- * This debugfs entry modify the current usb test mode.
- */
-static ssize_t testmode_write(struct file *file, const char __user *ubuf, size_t
- count, loff_t *ppos)
-{
- struct seq_file *s = file->private_data;
- struct dwc2_hsotg *hsotg = s->private;
- unsigned long flags;
- u32 testmode = 0;
- char buf[32];
-
- if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
- else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
- else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
- else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
- else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
- else
- testmode = 0;
-
- spin_lock_irqsave(&hsotg->lock, flags);
- s3c_hsotg_set_test_mode(hsotg, testmode);
- spin_unlock_irqrestore(&hsotg->lock, flags);
- return count;
-}
-
-/**
- * testmode_show - debugfs: show usb test mode state
- * @seq: The seq file to write to.
- * @v: Unused parameter.
- *
- * This debugfs entry shows which usb test mode is currently enabled.
- */
-static int testmode_show(struct seq_file *s, void *unused)
-{
- struct dwc2_hsotg *hsotg = s->private;
- unsigned long flags;
- int dctl;
-
- spin_lock_irqsave(&hsotg->lock, flags);
- dctl = readl(hsotg->regs + DCTL);
- dctl &= DCTL_TSTCTL_MASK;
- dctl >>= DCTL_TSTCTL_SHIFT;
- spin_unlock_irqrestore(&hsotg->lock, flags);
-
- switch (dctl) {
- case 0:
- seq_puts(s, "no test\n");
- break;
- case TEST_J:
- seq_puts(s, "test_j\n");
- break;
- case TEST_K:
- seq_puts(s, "test_k\n");
- break;
- case TEST_SE0_NAK:
- seq_puts(s, "test_se0_nak\n");
- break;
- case TEST_PACKET:
- seq_puts(s, "test_packet\n");
- break;
- case TEST_FORCE_EN:
- seq_puts(s, "test_force_enable\n");
- break;
- default:
- seq_printf(s, "UNKNOWN %d\n", dctl);
- }
-
- return 0;
-}
-
-static int testmode_open(struct inode *inode, struct file *file)
-{
- return single_open(file, testmode_show, inode->i_private);
-}
-
-static const struct file_operations testmode_fops = {
- .owner = THIS_MODULE,
- .open = testmode_open,
- .write = testmode_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/**
- * state_show - debugfs: show overall driver and device state.
- * @seq: The seq file to write to.
- * @v: Unused parameter.
- *
- * This debugfs entry shows the overall state of the hardware and
- * some general information about each of the endpoints available
- * to the system.
- */
-static int state_show(struct seq_file *seq, void *v)
-{
- struct dwc2_hsotg *hsotg = seq->private;
- void __iomem *regs = hsotg->regs;
- int idx;
-
- seq_printf(seq, "DCFG=0x%08x, DCTL=0x%08x, DSTS=0x%08x\n",
- readl(regs + DCFG),
- readl(regs + DCTL),
- readl(regs + DSTS));
-
- seq_printf(seq, "DIEPMSK=0x%08x, DOEPMASK=0x%08x\n",
- readl(regs + DIEPMSK), readl(regs + DOEPMSK));
-
- seq_printf(seq, "GINTMSK=0x%08x, GINTSTS=0x%08x\n",
- readl(regs + GINTMSK),
- readl(regs + GINTSTS));
-
- seq_printf(seq, "DAINTMSK=0x%08x, DAINT=0x%08x\n",
- readl(regs + DAINTMSK),
- readl(regs + DAINT));
-
- seq_printf(seq, "GNPTXSTS=0x%08x, GRXSTSR=%08x\n",
- readl(regs + GNPTXSTS),
- readl(regs + GRXSTSR));
-
- seq_puts(seq, "\nEndpoint status:\n");
-
- for (idx = 0; idx < hsotg->num_of_eps; idx++) {
- u32 in, out;
-
- in = readl(regs + DIEPCTL(idx));
- out = readl(regs + DOEPCTL(idx));
-
- seq_printf(seq, "ep%d: DIEPCTL=0x%08x, DOEPCTL=0x%08x",
- idx, in, out);
-
- in = readl(regs + DIEPTSIZ(idx));
- out = readl(regs + DOEPTSIZ(idx));
-
- seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
- in, out);
-
- seq_puts(seq, "\n");
- }
-
- return 0;
-}
-
-static int state_open(struct inode *inode, struct file *file)
-{
- return single_open(file, state_show, inode->i_private);
-}
-
-static const struct file_operations state_fops = {
- .owner = THIS_MODULE,
- .open = state_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/**
- * fifo_show - debugfs: show the fifo information
- * @seq: The seq_file to write data to.
- * @v: Unused parameter.
- *
- * Show the FIFO information for the overall fifo and all the
- * periodic transmission FIFOs.
- */
-static int fifo_show(struct seq_file *seq, void *v)
-{
- struct dwc2_hsotg *hsotg = seq->private;
- void __iomem *regs = hsotg->regs;
- u32 val;
- int idx;
-
- seq_puts(seq, "Non-periodic FIFOs:\n");
- seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ));
-
- val = readl(regs + GNPTXFSIZ);
- seq_printf(seq, "NPTXFIFO: Size %d, Start 0x%08x\n",
- val >> FIFOSIZE_DEPTH_SHIFT,
- val & FIFOSIZE_DEPTH_MASK);
-
- seq_puts(seq, "\nPeriodic TXFIFOs:\n");
-
- for (idx = 1; idx < hsotg->num_of_eps; idx++) {
- val = readl(regs + DPTXFSIZN(idx));
-
- seq_printf(seq, "\tDPTXFIFO%2d: Size %d, Start 0x%08x\n", idx,
- val >> FIFOSIZE_DEPTH_SHIFT,
- val & FIFOSIZE_STARTADDR_MASK);
- }
-
- return 0;
-}
-
-static int fifo_open(struct inode *inode, struct file *file)
-{
- return single_open(file, fifo_show, inode->i_private);
-}
-
-static const struct file_operations fifo_fops = {
- .owner = THIS_MODULE,
- .open = fifo_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-
-static const char *decode_direction(int is_in)
-{
- return is_in ? "in" : "out";
-}
-
-/**
- * ep_show - debugfs: show the state of an endpoint.
- * @seq: The seq_file to write data to.
- * @v: Unused parameter.
- *
- * This debugfs entry shows the state of the given endpoint (one is
- * registered for each available).
- */
-static int ep_show(struct seq_file *seq, void *v)
-{
- struct s3c_hsotg_ep *ep = seq->private;
- struct dwc2_hsotg *hsotg = ep->parent;
- struct s3c_hsotg_req *req;
- void __iomem *regs = hsotg->regs;
- int index = ep->index;
- int show_limit = 15;
- unsigned long flags;
-
- seq_printf(seq, "Endpoint index %d, named %s, dir %s:\n",
- ep->index, ep->ep.name, decode_direction(ep->dir_in));
-
- /* first show the register state */
-
- seq_printf(seq, "\tDIEPCTL=0x%08x, DOEPCTL=0x%08x\n",
- readl(regs + DIEPCTL(index)),
- readl(regs + DOEPCTL(index)));
-
- seq_printf(seq, "\tDIEPDMA=0x%08x, DOEPDMA=0x%08x\n",
- readl(regs + DIEPDMA(index)),
- readl(regs + DOEPDMA(index)));
-
- seq_printf(seq, "\tDIEPINT=0x%08x, DOEPINT=0x%08x\n",
- readl(regs + DIEPINT(index)),
- readl(regs + DOEPINT(index)));
-
- seq_printf(seq, "\tDIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x\n",
- readl(regs + DIEPTSIZ(index)),
- readl(regs + DOEPTSIZ(index)));
-
- seq_puts(seq, "\n");
- seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
- seq_printf(seq, "total_data=%ld\n", ep->total_data);
-
- seq_printf(seq, "request list (%p,%p):\n",
- ep->queue.next, ep->queue.prev);
-
- spin_lock_irqsave(&hsotg->lock, flags);
-
- list_for_each_entry(req, &ep->queue, queue) {
- if (--show_limit < 0) {
- seq_puts(seq, "not showing more requests...\n");
- break;
- }
-
- seq_printf(seq, "%c req %p: %d bytes @%p, ",
- req == ep->req ? '*' : ' ',
- req, req->req.length, req->req.buf);
- seq_printf(seq, "%d done, res %d\n",
- req->req.actual, req->req.status);
- }
-
- spin_unlock_irqrestore(&hsotg->lock, flags);
-
- return 0;
-}
-
-static int ep_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ep_show, inode->i_private);
-}
-
-static const struct file_operations ep_fops = {
- .owner = THIS_MODULE,
- .open = ep_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/**
- * s3c_hsotg_create_debug - create debugfs directory and files
- * @hsotg: The driver state
- *
- * Create the debugfs files to allow the user to get information
- * about the state of the system. The directory name is created
- * with the same name as the device itself, in case we end up
- * with multiple blocks in future systems.
- */
-static void s3c_hsotg_create_debug(struct dwc2_hsotg *hsotg)
-{
- struct dentry *root;
- unsigned epidx;
-
- root = debugfs_create_dir(dev_name(hsotg->dev), NULL);
- hsotg->debug_root = root;
- if (IS_ERR(root)) {
- dev_err(hsotg->dev, "cannot create debug root\n");
- return;
- }
-
- /* create general state file */
-
- hsotg->debug_file = debugfs_create_file("state", S_IRUGO, root,
- hsotg, &state_fops);
-
- if (IS_ERR(hsotg->debug_file))
- dev_err(hsotg->dev, "%s: failed to create state\n", __func__);
-
- hsotg->debug_testmode = debugfs_create_file("testmode",
- S_IRUGO | S_IWUSR, root,
- hsotg, &testmode_fops);
-
- if (IS_ERR(hsotg->debug_testmode))
- dev_err(hsotg->dev, "%s: failed to create testmode\n",
- __func__);
-
- hsotg->debug_fifo = debugfs_create_file("fifo", S_IRUGO, root,
- hsotg, &fifo_fops);
-
- if (IS_ERR(hsotg->debug_fifo))
- dev_err(hsotg->dev, "%s: failed to create fifo\n", __func__);
-
- /* Create one file for each out endpoint */
- for (epidx = 0; epidx < hsotg->num_of_eps; epidx++) {
- struct s3c_hsotg_ep *ep;
-
- ep = hsotg->eps_out[epidx];
- if (ep) {
- ep->debugfs = debugfs_create_file(ep->name, S_IRUGO,
- root, ep, &ep_fops);
-
- if (IS_ERR(ep->debugfs))
- dev_err(hsotg->dev, "failed to create %s debug file\n",
- ep->name);
- }
- }
- /* Create one file for each in endpoint. EP0 is handled with out eps */
- for (epidx = 1; epidx < hsotg->num_of_eps; epidx++) {
- struct s3c_hsotg_ep *ep;
-
- ep = hsotg->eps_in[epidx];
- if (ep) {
- ep->debugfs = debugfs_create_file(ep->name, S_IRUGO,
- root, ep, &ep_fops);
-
- if (IS_ERR(ep->debugfs))
- dev_err(hsotg->dev, "failed to create %s debug file\n",
- ep->name);
- }
- }
-}
-
-/**
- * s3c_hsotg_delete_debug - cleanup debugfs entries
- * @hsotg: The driver state
- *
- * Cleanup (remove) the debugfs files for use on module exit.
- */
-static void s3c_hsotg_delete_debug(struct dwc2_hsotg *hsotg)
-{
- unsigned epidx;
-
- for (epidx = 0; epidx < hsotg->num_of_eps; epidx++) {
- if (hsotg->eps_in[epidx])
- debugfs_remove(hsotg->eps_in[epidx]->debugfs);
- if (hsotg->eps_out[epidx])
- debugfs_remove(hsotg->eps_out[epidx]->debugfs);
- }
-
- debugfs_remove(hsotg->debug_file);
- debugfs_remove(hsotg->debug_testmode);
- debugfs_remove(hsotg->debug_fifo);
- debugfs_remove(hsotg->debug_root);
-}
-
#ifdef CONFIG_OF
-static void s3c_hsotg_of_probe(struct dwc2_hsotg *hsotg)
+static void dwc2_hsotg_of_probe(struct dwc2_hsotg *hsotg)
{
struct device_node *np = hsotg->dev->of_node;
u32 len = 0;
@@ -3831,7 +3541,7 @@ rx_fifo:
&hsotg->g_np_g_tx_fifo_sz);
}
#else
-static inline void s3c_hsotg_of_probe(struct dwc2_hsotg *hsotg) { }
+static inline void dwc2_hsotg_of_probe(struct dwc2_hsotg *hsotg) { }
#endif
/**
@@ -3842,23 +3552,17 @@ static inline void s3c_hsotg_of_probe(struct dwc2_hsotg *hsotg) { }
int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
{
struct device *dev = hsotg->dev;
- struct s3c_hsotg_plat *plat = dev->platform_data;
int epnum;
int ret;
int i;
u32 p_tx_fifo[] = DWC2_G_P_LEGACY_TX_FIFO_SIZE;
- /* Set default UTMI width */
- hsotg->phyif = GUSBCFG_PHYIF16;
-
- s3c_hsotg_of_probe(hsotg);
-
/* Initialize to legacy fifo configuration values */
hsotg->g_rx_fifo_sz = 2048;
hsotg->g_np_g_tx_fifo_sz = 1024;
memcpy(&hsotg->g_tx_fifo_sz[1], p_tx_fifo, sizeof(p_tx_fifo));
/* Device tree specific probe */
- s3c_hsotg_of_probe(hsotg);
+ dwc2_hsotg_of_probe(hsotg);
/* Dump fifo information */
dev_dbg(dev, "NonPeriodic TXFIFO size: %d\n",
hsotg->g_np_g_tx_fifo_sz);
@@ -3866,68 +3570,14 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
for (i = 0; i < MAX_EPS_CHANNELS; i++)
dev_dbg(dev, "Periodic TXFIFO%2d size: %d\n", i,
hsotg->g_tx_fifo_sz[i]);
- /*
- * If platform probe couldn't find a generic PHY or an old style
- * USB PHY, fall back to pdata
- */
- if (IS_ERR_OR_NULL(hsotg->phy) && IS_ERR_OR_NULL(hsotg->uphy)) {
- plat = dev_get_platdata(dev);
- if (!plat) {
- dev_err(dev,
- "no platform data or transceiver defined\n");
- return -EPROBE_DEFER;
- }
- hsotg->plat = plat;
- } else if (hsotg->phy) {
- /*
- * If using the generic PHY framework, check if the PHY bus
- * width is 8-bit and set the phyif appropriately.
- */
- if (phy_get_bus_width(hsotg->phy) == 8)
- hsotg->phyif = GUSBCFG_PHYIF8;
- }
-
- hsotg->clk = devm_clk_get(dev, "otg");
- if (IS_ERR(hsotg->clk)) {
- hsotg->clk = NULL;
- dev_dbg(dev, "cannot get otg clock\n");
- }
hsotg->gadget.max_speed = USB_SPEED_HIGH;
- hsotg->gadget.ops = &s3c_hsotg_gadget_ops;
+ hsotg->gadget.ops = &dwc2_hsotg_gadget_ops;
hsotg->gadget.name = dev_name(dev);
-
- /* reset the system */
-
- ret = clk_prepare_enable(hsotg->clk);
- if (ret) {
- dev_err(dev, "failed to enable otg clk\n");
- goto err_clk;
- }
-
-
- /* regulators */
-
- for (i = 0; i < ARRAY_SIZE(hsotg->supplies); i++)
- hsotg->supplies[i].supply = s3c_hsotg_supply_names[i];
-
- ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
- if (ret) {
- dev_err(dev, "failed to request supplies: %d\n", ret);
- goto err_clk;
- }
-
- ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
-
- if (ret) {
- dev_err(dev, "failed to enable supplies: %d\n", ret);
- goto err_clk;
- }
-
- /* usb phy enable */
- s3c_hsotg_phy_enable(hsotg);
+ if (hsotg->dr_mode == USB_DR_MODE_OTG)
+ hsotg->gadget.is_otg = 1;
+ else if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+ hsotg->op_state = OTG_STATE_B_PERIPHERAL;
/*
* Force Device mode before initialization.
@@ -3942,14 +3592,14 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
*/
msleep(25);
- s3c_hsotg_corereset(hsotg);
- ret = s3c_hsotg_hw_cfg(hsotg);
+ dwc2_hsotg_corereset(hsotg);
+ ret = dwc2_hsotg_hw_cfg(hsotg);
if (ret) {
dev_err(hsotg->dev, "Hardware configuration failed: %d\n", ret);
- goto err_clk;
+ return ret;
}
- s3c_hsotg_init(hsotg);
+ dwc2_hsotg_init(hsotg);
/* Switch back to default configuration */
__bic32(hsotg->regs + GUSBCFG, GUSBCFG_FORCEDEVMODE);
@@ -3958,35 +3608,28 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
DWC2_CTRL_BUFF_SIZE, GFP_KERNEL);
if (!hsotg->ctrl_buff) {
dev_err(dev, "failed to allocate ctrl request buff\n");
- ret = -ENOMEM;
- goto err_supplies;
+ return -ENOMEM;
}
hsotg->ep0_buff = devm_kzalloc(hsotg->dev,
DWC2_CTRL_BUFF_SIZE, GFP_KERNEL);
if (!hsotg->ep0_buff) {
dev_err(dev, "failed to allocate ctrl reply buff\n");
- ret = -ENOMEM;
- goto err_supplies;
+ return -ENOMEM;
}
- ret = devm_request_irq(hsotg->dev, irq, s3c_hsotg_irq, IRQF_SHARED,
+ ret = devm_request_irq(hsotg->dev, irq, dwc2_hsotg_irq, IRQF_SHARED,
dev_name(hsotg->dev), hsotg);
if (ret < 0) {
- s3c_hsotg_phy_disable(hsotg);
- clk_disable_unprepare(hsotg->clk);
- regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
dev_err(dev, "cannot claim IRQ for gadget\n");
- goto err_supplies;
+ return ret;
}
/* hsotg->num_of_eps holds number of EPs other than ep0 */
if (hsotg->num_of_eps == 0) {
dev_err(dev, "wrong number of EPs (zero)\n");
- ret = -EINVAL;
- goto err_supplies;
+ return -EINVAL;
}
/* setup endpoint information */
@@ -3996,73 +3639,49 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
/* allocate EP0 request */
- hsotg->ctrl_req = s3c_hsotg_ep_alloc_request(&hsotg->eps_out[0]->ep,
+ hsotg->ctrl_req = dwc2_hsotg_ep_alloc_request(&hsotg->eps_out[0]->ep,
GFP_KERNEL);
if (!hsotg->ctrl_req) {
dev_err(dev, "failed to allocate ctrl req\n");
- ret = -ENOMEM;
- goto err_supplies;
+ return -ENOMEM;
}
/* initialise the endpoints now the core has been initialised */
for (epnum = 0; epnum < hsotg->num_of_eps; epnum++) {
if (hsotg->eps_in[epnum])
- s3c_hsotg_initep(hsotg, hsotg->eps_in[epnum],
+ dwc2_hsotg_initep(hsotg, hsotg->eps_in[epnum],
epnum, 1);
if (hsotg->eps_out[epnum])
- s3c_hsotg_initep(hsotg, hsotg->eps_out[epnum],
+ dwc2_hsotg_initep(hsotg, hsotg->eps_out[epnum],
epnum, 0);
}
- /* disable power and clock */
- s3c_hsotg_phy_disable(hsotg);
-
- ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
- if (ret) {
- dev_err(dev, "failed to disable supplies: %d\n", ret);
- goto err_supplies;
- }
-
ret = usb_add_gadget_udc(dev, &hsotg->gadget);
if (ret)
- goto err_supplies;
-
- s3c_hsotg_create_debug(hsotg);
+ return ret;
- s3c_hsotg_dump(hsotg);
+ dwc2_hsotg_dump(hsotg);
return 0;
-
-err_supplies:
- s3c_hsotg_phy_disable(hsotg);
-err_clk:
- clk_disable_unprepare(hsotg->clk);
-
- return ret;
}
-EXPORT_SYMBOL_GPL(dwc2_gadget_init);
/**
- * s3c_hsotg_remove - remove function for hsotg driver
+ * dwc2_hsotg_remove - remove function for hsotg driver
* @pdev: The platform information for the driver
*/
-int s3c_hsotg_remove(struct dwc2_hsotg *hsotg)
+int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg)
{
usb_del_gadget_udc(&hsotg->gadget);
- s3c_hsotg_delete_debug(hsotg);
- clk_disable_unprepare(hsotg->clk);
return 0;
}
-EXPORT_SYMBOL_GPL(s3c_hsotg_remove);
-int s3c_hsotg_suspend(struct dwc2_hsotg *hsotg)
+int dwc2_hsotg_suspend(struct dwc2_hsotg *hsotg)
{
unsigned long flags;
- int ret = 0;
- mutex_lock(&hsotg->init_mutex);
+ if (hsotg->lx_state != DWC2_L0)
+ return 0;
if (hsotg->driver) {
int ep;
@@ -4072,56 +3691,39 @@ int s3c_hsotg_suspend(struct dwc2_hsotg *hsotg)
spin_lock_irqsave(&hsotg->lock, flags);
if (hsotg->enabled)
- s3c_hsotg_core_disconnect(hsotg);
- s3c_hsotg_disconnect(hsotg);
+ dwc2_hsotg_core_disconnect(hsotg);
+ dwc2_hsotg_disconnect(hsotg);
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
spin_unlock_irqrestore(&hsotg->lock, flags);
- s3c_hsotg_phy_disable(hsotg);
-
for (ep = 0; ep < hsotg->num_of_eps; ep++) {
if (hsotg->eps_in[ep])
- s3c_hsotg_ep_disable(&hsotg->eps_in[ep]->ep);
+ dwc2_hsotg_ep_disable(&hsotg->eps_in[ep]->ep);
if (hsotg->eps_out[ep])
- s3c_hsotg_ep_disable(&hsotg->eps_out[ep]->ep);
+ dwc2_hsotg_ep_disable(&hsotg->eps_out[ep]->ep);
}
-
- ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
- clk_disable(hsotg->clk);
}
- mutex_unlock(&hsotg->init_mutex);
-
- return ret;
+ return 0;
}
-EXPORT_SYMBOL_GPL(s3c_hsotg_suspend);
-int s3c_hsotg_resume(struct dwc2_hsotg *hsotg)
+int dwc2_hsotg_resume(struct dwc2_hsotg *hsotg)
{
unsigned long flags;
- int ret = 0;
- mutex_lock(&hsotg->init_mutex);
+ if (hsotg->lx_state == DWC2_L2)
+ return 0;
if (hsotg->driver) {
dev_info(hsotg->dev, "resuming usb gadget %s\n",
hsotg->driver->driver.name);
- clk_enable(hsotg->clk);
- ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),
- hsotg->supplies);
-
- s3c_hsotg_phy_enable(hsotg);
-
spin_lock_irqsave(&hsotg->lock, flags);
- s3c_hsotg_core_init_disconnected(hsotg, false);
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
if (hsotg->enabled)
- s3c_hsotg_core_connect(hsotg);
+ dwc2_hsotg_core_connect(hsotg);
spin_unlock_irqrestore(&hsotg->lock, flags);
}
- mutex_unlock(&hsotg->init_mutex);
- return ret;
+ return 0;
}
-EXPORT_SYMBOL_GPL(s3c_hsotg_resume);
diff --git a/kernel/drivers/usb/dwc2/hcd.c b/kernel/drivers/usb/dwc2/hcd.c
index fbbbac215..571c21727 100644
--- a/kernel/drivers/usb/dwc2/hcd.c
+++ b/kernel/drivers/usb/dwc2/hcd.c
@@ -80,10 +80,10 @@ static void dwc2_dump_channel_info(struct dwc2_hsotg *hsotg,
if (chan == NULL)
return;
- hcchar = readl(hsotg->regs + HCCHAR(chan->hc_num));
- hcsplt = readl(hsotg->regs + HCSPLT(chan->hc_num));
- hctsiz = readl(hsotg->regs + HCTSIZ(chan->hc_num));
- hc_dma = readl(hsotg->regs + HCDMA(chan->hc_num));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
+ hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chan->hc_num));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chan->hc_num));
+ hc_dma = dwc2_readl(hsotg->regs + HCDMA(chan->hc_num));
dev_dbg(hsotg->dev, " Assigned to channel %p:\n", chan);
dev_dbg(hsotg->dev, " hcchar 0x%08x, hcsplt 0x%08x\n",
@@ -134,7 +134,7 @@ static void dwc2_kill_urbs_in_qh_list(struct dwc2_hsotg *hsotg,
list_for_each_entry_safe(qh, qh_tmp, qh_list, qh_list_entry) {
list_for_each_entry_safe(qtd, qtd_tmp, &qh->qtd_list,
qtd_list_entry) {
- dwc2_host_complete(hsotg, qtd, -ETIMEDOUT);
+ dwc2_host_complete(hsotg, qtd, -ECONNRESET);
dwc2_hcd_qtd_unlink_and_free(hsotg, qtd, qh);
}
}
@@ -207,7 +207,7 @@ void dwc2_hcd_start(struct dwc2_hsotg *hsotg)
*/
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 |= HPRT0_RST;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
}
queue_delayed_work(hsotg->wq_otg, &hsotg->start_work,
@@ -228,11 +228,11 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg)
channel = hsotg->hc_ptr_array[i];
if (!list_empty(&channel->hc_list_entry))
continue;
- hcchar = readl(hsotg->regs + HCCHAR(i));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
if (hcchar & HCCHAR_CHENA) {
hcchar &= ~(HCCHAR_CHENA | HCCHAR_EPDIR);
hcchar |= HCCHAR_CHDIS;
- writel(hcchar, hsotg->regs + HCCHAR(i));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(i));
}
}
}
@@ -241,11 +241,11 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg)
channel = hsotg->hc_ptr_array[i];
if (!list_empty(&channel->hc_list_entry))
continue;
- hcchar = readl(hsotg->regs + HCCHAR(i));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
if (hcchar & HCCHAR_CHENA) {
/* Halt the channel */
hcchar |= HCCHAR_CHDIS;
- writel(hcchar, hsotg->regs + HCCHAR(i));
+ dwc2_writel(hcchar, hsotg->regs + HCCHAR(i));
}
dwc2_hc_cleanup(hsotg, channel);
@@ -287,11 +287,11 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg)
* interrupt mask and status bits and disabling subsequent host
* channel interrupts.
*/
- intr = readl(hsotg->regs + GINTMSK);
+ intr = dwc2_readl(hsotg->regs + GINTMSK);
intr &= ~(GINTSTS_NPTXFEMP | GINTSTS_PTXFEMP | GINTSTS_HCHINT);
- writel(intr, hsotg->regs + GINTMSK);
+ dwc2_writel(intr, hsotg->regs + GINTMSK);
intr = GINTSTS_NPTXFEMP | GINTSTS_PTXFEMP | GINTSTS_HCHINT;
- writel(intr, hsotg->regs + GINTSTS);
+ dwc2_writel(intr, hsotg->regs + GINTSTS);
/*
* Turn off the vbus power only if the core has transitioned to device
@@ -301,7 +301,7 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg)
if (dwc2_is_device_mode(hsotg)) {
if (hsotg->op_state != OTG_STATE_A_SUSPEND) {
dev_dbg(hsotg->dev, "Disconnect: PortPower off\n");
- writel(0, hsotg->regs + HPRT0);
+ dwc2_writel(0, hsotg->regs + HPRT0);
}
dwc2_disable_host_interrupts(hsotg);
@@ -324,12 +324,13 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg)
*/
static void dwc2_hcd_rem_wakeup(struct dwc2_hsotg *hsotg)
{
- if (hsotg->lx_state == DWC2_L2) {
+ if (hsotg->bus_suspended) {
hsotg->flags.b.port_suspend_change = 1;
usb_hcd_resume_root_hub(hsotg->priv);
- } else {
- hsotg->flags.b.port_l1_change = 1;
}
+
+ if (hsotg->lx_state == DWC2_L1)
+ hsotg->flags.b.port_l1_change = 1;
}
/**
@@ -354,15 +355,14 @@ void dwc2_hcd_stop(struct dwc2_hsotg *hsotg)
/* Turn off the vbus power */
dev_dbg(hsotg->dev, "PortPower off\n");
- writel(0, hsotg->regs + HPRT0);
+ dwc2_writel(0, hsotg->regs + HPRT0);
}
+/* Caller must hold driver lock */
static int dwc2_hcd_urb_enqueue(struct dwc2_hsotg *hsotg,
- struct dwc2_hcd_urb *urb, void **ep_handle,
- gfp_t mem_flags)
+ struct dwc2_hcd_urb *urb, struct dwc2_qh *qh,
+ struct dwc2_qtd *qtd)
{
- struct dwc2_qtd *qtd;
- unsigned long flags;
u32 intr_mask;
int retval;
int dev_speed;
@@ -379,29 +379,26 @@ static int dwc2_hcd_urb_enqueue(struct dwc2_hsotg *hsotg,
if ((dev_speed == USB_SPEED_LOW) &&
(hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED) &&
(hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI)) {
- u32 hprt0 = readl(hsotg->regs + HPRT0);
+ u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0);
u32 prtspd = (hprt0 & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;
if (prtspd == HPRT0_SPD_FULL_SPEED)
return -ENODEV;
}
- qtd = kzalloc(sizeof(*qtd), mem_flags);
if (!qtd)
- return -ENOMEM;
+ return -EINVAL;
dwc2_hcd_qtd_init(qtd, urb);
- retval = dwc2_hcd_qtd_add(hsotg, qtd, (struct dwc2_qh **)ep_handle,
- mem_flags);
+ retval = dwc2_hcd_qtd_add(hsotg, qtd, qh);
if (retval) {
dev_err(hsotg->dev,
"DWC OTG HCD URB Enqueue failed adding QTD. Error status %d\n",
retval);
- kfree(qtd);
return retval;
}
- intr_mask = readl(hsotg->regs + GINTMSK);
+ intr_mask = dwc2_readl(hsotg->regs + GINTMSK);
if (!(intr_mask & GINTSTS_SOF)) {
enum dwc2_transaction_type tr_type;
@@ -413,11 +410,9 @@ static int dwc2_hcd_urb_enqueue(struct dwc2_hsotg *hsotg,
*/
return 0;
- spin_lock_irqsave(&hsotg->lock, flags);
tr_type = dwc2_hcd_select_transactions(hsotg);
if (tr_type != DWC2_TRANSACTION_NONE)
dwc2_hcd_queue_transactions(hsotg, tr_type);
- spin_unlock_irqrestore(&hsotg->lock, flags);
}
return 0;
@@ -721,9 +716,7 @@ static int dwc2_hc_setup_align_buf(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
/* 3072 = 3 max-size Isoc packets */
buf_size = 3072;
- qh->dw_align_buf = dma_alloc_coherent(hsotg->dev, buf_size,
- &qh->dw_align_buf_dma,
- GFP_ATOMIC);
+ qh->dw_align_buf = kmalloc(buf_size, GFP_ATOMIC | GFP_DMA);
if (!qh->dw_align_buf)
return -ENOMEM;
qh->dw_align_buf_size = buf_size;
@@ -748,6 +741,15 @@ static int dwc2_hc_setup_align_buf(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
}
}
+ qh->dw_align_buf_dma = dma_map_single(hsotg->dev,
+ qh->dw_align_buf, qh->dw_align_buf_size,
+ chan->ep_is_in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ if (dma_mapping_error(hsotg->dev, qh->dw_align_buf_dma)) {
+ dev_err(hsotg->dev, "can't map align_buf\n");
+ chan->align_buf = 0;
+ return -EINVAL;
+ }
+
chan->align_buf = qh->dw_align_buf_dma;
return 0;
}
@@ -1069,7 +1071,7 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg)
if (dbg_perio())
dev_vdbg(hsotg->dev, "Queue periodic transactions\n");
- tx_status = readl(hsotg->regs + HPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + HPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >>
@@ -1084,7 +1086,7 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg)
qh_ptr = hsotg->periodic_sched_assigned.next;
while (qh_ptr != &hsotg->periodic_sched_assigned) {
- tx_status = readl(hsotg->regs + HPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + HPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
if (qspcavail == 0) {
@@ -1144,7 +1146,7 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg)
}
if (hsotg->core_params->dma_enable <= 0) {
- tx_status = readl(hsotg->regs + HPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + HPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >>
@@ -1167,9 +1169,9 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg)
* level to ensure that new requests are loaded as
* soon as possible.)
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk |= GINTSTS_PTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
} else {
/*
* Disable the Tx FIFO empty interrupt since there are
@@ -1178,9 +1180,9 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg)
* handlers to queue more transactions as transfer
* states change.
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_PTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
}
}
}
@@ -1209,7 +1211,7 @@ static void dwc2_process_non_periodic_channels(struct dwc2_hsotg *hsotg)
dev_vdbg(hsotg->dev, "Queue non-periodic transactions\n");
- tx_status = readl(hsotg->regs + GNPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + GNPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >>
@@ -1232,7 +1234,7 @@ static void dwc2_process_non_periodic_channels(struct dwc2_hsotg *hsotg)
* available in the request queue or the Tx FIFO
*/
do {
- tx_status = readl(hsotg->regs + GNPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + GNPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
if (hsotg->core_params->dma_enable <= 0 && qspcavail == 0) {
@@ -1269,7 +1271,7 @@ next:
} while (hsotg->non_periodic_qh_ptr != orig_qh_ptr);
if (hsotg->core_params->dma_enable <= 0) {
- tx_status = readl(hsotg->regs + GNPTXSTS);
+ tx_status = dwc2_readl(hsotg->regs + GNPTXSTS);
qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >>
TXSTS_QSPCAVAIL_SHIFT;
fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >>
@@ -1289,9 +1291,9 @@ next:
* level to ensure that new requests are loaded as
* soon as possible.)
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk |= GINTSTS_NPTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
} else {
/*
* Disable the Tx FIFO empty interrupt since there are
@@ -1300,9 +1302,9 @@ next:
* handlers to queue more transactions as transfer
* states change.
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_NPTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
}
}
}
@@ -1340,10 +1342,10 @@ void dwc2_hcd_queue_transactions(struct dwc2_hsotg *hsotg,
* Ensure NP Tx FIFO empty interrupt is disabled when
* there are no non-periodic transfers to process
*/
- u32 gintmsk = readl(hsotg->regs + GINTMSK);
+ u32 gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk &= ~GINTSTS_NPTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
}
}
}
@@ -1354,10 +1356,11 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
wf_otg);
u32 count = 0;
u32 gotgctl;
+ unsigned long flags;
dev_dbg(hsotg->dev, "%s()\n", __func__);
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
dev_dbg(hsotg->dev, "gotgctl=%0x\n", gotgctl);
dev_dbg(hsotg->dev, "gotgctl.b.conidsts=%d\n",
!!(gotgctl & GOTGCTL_CONID_B));
@@ -1381,8 +1384,10 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
hsotg->op_state = OTG_STATE_B_PERIPHERAL;
dwc2_core_init(hsotg, false, -1);
dwc2_enable_global_interrupts(hsotg);
- s3c_hsotg_core_init_disconnected(hsotg, false);
- s3c_hsotg_core_connect(hsotg);
+ spin_lock_irqsave(&hsotg->lock, flags);
+ dwc2_hsotg_core_init_disconnected(hsotg, false);
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ dwc2_hsotg_core_connect(hsotg);
} else {
/* A-Device connector (Host Mode) */
dev_dbg(hsotg->dev, "connId A\n");
@@ -1420,11 +1425,12 @@ static void dwc2_wakeup_detected(unsigned long data)
hprt0 = dwc2_read_hprt0(hsotg);
dev_dbg(hsotg->dev, "Resume: HPRT0=%0x\n", hprt0);
hprt0 &= ~HPRT0_RES;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
dev_dbg(hsotg->dev, "Clear Resume: HPRT0=%0x\n",
- readl(hsotg->regs + HPRT0));
+ dwc2_readl(hsotg->regs + HPRT0));
dwc2_hcd_rem_wakeup(hsotg);
+ hsotg->bus_suspended = 0;
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
@@ -1450,30 +1456,35 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
spin_lock_irqsave(&hsotg->lock, flags);
if (windex == hsotg->otg_port && dwc2_host_is_b_hnp_enabled(hsotg)) {
- gotgctl = readl(hsotg->regs + GOTGCTL);
+ gotgctl = dwc2_readl(hsotg->regs + GOTGCTL);
gotgctl |= GOTGCTL_HSTSETHNPEN;
- writel(gotgctl, hsotg->regs + GOTGCTL);
+ dwc2_writel(gotgctl, hsotg->regs + GOTGCTL);
hsotg->op_state = OTG_STATE_A_SUSPEND;
}
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 |= HPRT0_SUSP;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
- /* Update lx_state */
- hsotg->lx_state = DWC2_L2;
+ hsotg->bus_suspended = 1;
- /* Suspend the Phy Clock */
- pcgctl = readl(hsotg->regs + PCGCTL);
- pcgctl |= PCGCTL_STOPPCLK;
- writel(pcgctl, hsotg->regs + PCGCTL);
- udelay(10);
+ /*
+ * If hibernation is supported, Phy clock will be suspended
+ * after registers are backuped.
+ */
+ if (!hsotg->core_params->hibernation) {
+ /* Suspend the Phy Clock */
+ pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
+ pcgctl |= PCGCTL_STOPPCLK;
+ dwc2_writel(pcgctl, hsotg->regs + PCGCTL);
+ udelay(10);
+ }
/* For HNP the bus must be suspended for at least 200ms */
if (dwc2_host_is_b_hnp_enabled(hsotg)) {
- pcgctl = readl(hsotg->regs + PCGCTL);
+ pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
pcgctl &= ~PCGCTL_STOPPCLK;
- writel(pcgctl, hsotg->regs + PCGCTL);
+ dwc2_writel(pcgctl, hsotg->regs + PCGCTL);
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -1483,6 +1494,44 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
}
}
+/* Must NOT be called with interrupt disabled or spinlock held */
+static void dwc2_port_resume(struct dwc2_hsotg *hsotg)
+{
+ unsigned long flags;
+ u32 hprt0;
+ u32 pcgctl;
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+
+ /*
+ * If hibernation is supported, Phy clock is already resumed
+ * after registers restore.
+ */
+ if (!hsotg->core_params->hibernation) {
+ pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
+ pcgctl &= ~PCGCTL_STOPPCLK;
+ dwc2_writel(pcgctl, hsotg->regs + PCGCTL);
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ usleep_range(20000, 40000);
+ spin_lock_irqsave(&hsotg->lock, flags);
+ }
+
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_RES;
+ hprt0 &= ~HPRT0_SUSP;
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ msleep(USB_RESUME_TIMEOUT);
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 &= ~(HPRT0_RES | HPRT0_SUSP);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
+ hsotg->bus_suspended = 0;
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+}
+
/* Handles hub class-specific requests */
static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
u16 wvalue, u16 windex, char *buf, u16 wlength)
@@ -1522,23 +1571,15 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"ClearPortFeature USB_PORT_FEAT_ENABLE\n");
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 |= HPRT0_ENA;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
break;
case USB_PORT_FEAT_SUSPEND:
dev_dbg(hsotg->dev,
"ClearPortFeature USB_PORT_FEAT_SUSPEND\n");
- writel(0, hsotg->regs + PCGCTL);
- usleep_range(20000, 40000);
-
- hprt0 = dwc2_read_hprt0(hsotg);
- hprt0 |= HPRT0_RES;
- writel(hprt0, hsotg->regs + HPRT0);
- hprt0 &= ~HPRT0_SUSP;
- msleep(USB_RESUME_TIMEOUT);
- hprt0 &= ~HPRT0_RES;
- writel(hprt0, hsotg->regs + HPRT0);
+ if (hsotg->bus_suspended)
+ dwc2_port_resume(hsotg);
break;
case USB_PORT_FEAT_POWER:
@@ -1546,7 +1587,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"ClearPortFeature USB_PORT_FEAT_POWER\n");
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 &= ~HPRT0_PWR;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
break;
case USB_PORT_FEAT_INDICATOR:
@@ -1667,7 +1708,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
break;
}
- hprt0 = readl(hsotg->regs + HPRT0);
+ hprt0 = dwc2_readl(hsotg->regs + HPRT0);
dev_vdbg(hsotg->dev, " HPRT0: 0x%08x\n", hprt0);
if (hprt0 & HPRT0_CONNSTS)
@@ -1732,18 +1773,18 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"SetPortFeature - USB_PORT_FEAT_POWER\n");
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 |= HPRT0_PWR;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
break;
case USB_PORT_FEAT_RESET:
hprt0 = dwc2_read_hprt0(hsotg);
dev_dbg(hsotg->dev,
"SetPortFeature - USB_PORT_FEAT_RESET\n");
- pcgctl = readl(hsotg->regs + PCGCTL);
+ pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
pcgctl &= ~(PCGCTL_ENBL_SLEEP_GATING | PCGCTL_STOPPCLK);
- writel(pcgctl, hsotg->regs + PCGCTL);
+ dwc2_writel(pcgctl, hsotg->regs + PCGCTL);
/* ??? Original driver does this */
- writel(0, hsotg->regs + PCGCTL);
+ dwc2_writel(0, hsotg->regs + PCGCTL);
hprt0 = dwc2_read_hprt0(hsotg);
/* Clear suspend bit if resetting from suspend state */
@@ -1758,13 +1799,13 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
hprt0 |= HPRT0_PWR | HPRT0_RST;
dev_dbg(hsotg->dev,
"In host mode, hprt0=%08x\n", hprt0);
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
}
/* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */
usleep_range(50000, 70000);
hprt0 &= ~HPRT0_RST;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
hsotg->lx_state = DWC2_L0; /* Now back to On state */
break;
@@ -1774,6 +1815,15 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
/* Not supported */
break;
+ case USB_PORT_FEAT_TEST:
+ hprt0 = dwc2_read_hprt0(hsotg);
+ dev_dbg(hsotg->dev,
+ "SetPortFeature - USB_PORT_FEAT_TEST\n");
+ hprt0 &= ~HPRT0_TSTCTL_MASK;
+ hprt0 |= (windex >> 8) << HPRT0_TSTCTL_SHIFT;
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
+ break;
+
default:
retval = -EINVAL;
dev_err(hsotg->dev,
@@ -1828,7 +1878,7 @@ static int dwc2_hcd_is_status_changed(struct dwc2_hsotg *hsotg, int port)
int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg)
{
- u32 hfnum = readl(hsotg->regs + HFNUM);
+ u32 hfnum = dwc2_readl(hsotg->regs + HFNUM);
#ifdef DWC2_DEBUG_SOF
dev_vdbg(hsotg->dev, "DWC OTG HCD GET FRAME NUMBER %d\n",
@@ -1931,11 +1981,11 @@ void dwc2_hcd_dump_state(struct dwc2_hsotg *hsotg)
if (chan->xfer_started) {
u32 hfnum, hcchar, hctsiz, hcint, hcintmsk;
- hfnum = readl(hsotg->regs + HFNUM);
- hcchar = readl(hsotg->regs + HCCHAR(i));
- hctsiz = readl(hsotg->regs + HCTSIZ(i));
- hcint = readl(hsotg->regs + HCINT(i));
- hcintmsk = readl(hsotg->regs + HCINTMSK(i));
+ hfnum = dwc2_readl(hsotg->regs + HFNUM);
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(i));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(i));
+ hcint = dwc2_readl(hsotg->regs + HCINT(i));
+ hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(i));
dev_dbg(hsotg->dev, " hfnum: 0x%08x\n", hfnum);
dev_dbg(hsotg->dev, " hcchar: 0x%08x\n", hcchar);
dev_dbg(hsotg->dev, " hctsiz: 0x%08x\n", hctsiz);
@@ -1983,12 +2033,12 @@ void dwc2_hcd_dump_state(struct dwc2_hsotg *hsotg)
dev_dbg(hsotg->dev, " periodic_channels: %d\n",
hsotg->periodic_channels);
dev_dbg(hsotg->dev, " periodic_usecs: %d\n", hsotg->periodic_usecs);
- np_tx_status = readl(hsotg->regs + GNPTXSTS);
+ np_tx_status = dwc2_readl(hsotg->regs + GNPTXSTS);
dev_dbg(hsotg->dev, " NP Tx Req Queue Space Avail: %d\n",
(np_tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT);
dev_dbg(hsotg->dev, " NP Tx FIFO Space Avail: %d\n",
(np_tx_status & TXSTS_FSPCAVAIL_MASK) >> TXSTS_FSPCAVAIL_SHIFT);
- p_tx_status = readl(hsotg->regs + HPTXSTS);
+ p_tx_status = dwc2_readl(hsotg->regs + HPTXSTS);
dev_dbg(hsotg->dev, " P Tx Req Queue Space Avail: %d\n",
(p_tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT);
dev_dbg(hsotg->dev, " P Tx FIFO Space Avail: %d\n",
@@ -2184,11 +2234,6 @@ void dwc2_host_complete(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
usb_pipein(urb->pipe) ? "IN" : "OUT", status,
urb->actual_length);
- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS && dbg_perio()) {
- for (i = 0; i < urb->number_of_packets; i++)
- dev_vdbg(hsotg->dev, " ISO Desc %d status %d\n",
- i, urb->iso_frame_desc[i].status);
- }
if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
urb->error_count = dwc2_hcd_urb_get_error_count(qtd->urb);
@@ -2201,6 +2246,12 @@ void dwc2_host_complete(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
}
}
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS && dbg_perio()) {
+ for (i = 0; i < urb->number_of_packets; i++)
+ dev_vdbg(hsotg->dev, " ISO Desc %d status %d\n",
+ i, urb->iso_frame_desc[i].status);
+ }
+
urb->status = status;
if (!status) {
if ((urb->transfer_flags & URB_SHORT_NOT_OK) &&
@@ -2252,7 +2303,7 @@ static void dwc2_hcd_reset_func(struct work_struct *work)
dev_dbg(hsotg->dev, "USB RESET function called\n");
hprt0 = dwc2_read_hprt0(hsotg);
hprt0 &= ~HPRT0_RST;
- writel(hprt0, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
hsotg->flags.b.port_reset_change = 1;
}
@@ -2276,8 +2327,9 @@ static int _dwc2_hcd_start(struct usb_hcd *hcd)
dev_dbg(hsotg->dev, "DWC OTG HCD START\n");
spin_lock_irqsave(&hsotg->lock, flags);
-
+ hsotg->lx_state = DWC2_L0;
hcd->state = HC_STATE_RUNNING;
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
if (dwc2_is_device_mode(hsotg)) {
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -2306,13 +2358,148 @@ static void _dwc2_hcd_stop(struct usb_hcd *hcd)
struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
unsigned long flags;
+ /* Turn off all host-specific interrupts */
+ dwc2_disable_host_interrupts(hsotg);
+
+ /* Wait for interrupt processing to finish */
+ synchronize_irq(hcd->irq);
+
spin_lock_irqsave(&hsotg->lock, flags);
+ /* Ensure hcd is disconnected */
+ dwc2_hcd_disconnect(hsotg);
dwc2_hcd_stop(hsotg);
+ hsotg->lx_state = DWC2_L3;
+ hcd->state = HC_STATE_HALT;
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
spin_unlock_irqrestore(&hsotg->lock, flags);
usleep_range(1000, 3000);
}
+static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
+{
+ struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
+ unsigned long flags;
+ int ret = 0;
+ u32 hprt0;
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+
+ if (hsotg->lx_state != DWC2_L0)
+ goto unlock;
+
+ if (!HCD_HW_ACCESSIBLE(hcd))
+ goto unlock;
+
+ if (!hsotg->core_params->hibernation)
+ goto skip_power_saving;
+
+ /*
+ * Drive USB suspend and disable port Power
+ * if usb bus is not suspended.
+ */
+ if (!hsotg->bus_suspended) {
+ hprt0 = dwc2_read_hprt0(hsotg);
+ hprt0 |= HPRT0_SUSP;
+ hprt0 &= ~HPRT0_PWR;
+ dwc2_writel(hprt0, hsotg->regs + HPRT0);
+ }
+
+ /* Enter hibernation */
+ ret = dwc2_enter_hibernation(hsotg);
+ if (ret) {
+ if (ret != -ENOTSUPP)
+ dev_err(hsotg->dev,
+ "enter hibernation failed\n");
+ goto skip_power_saving;
+ }
+
+ /* Ask phy to be suspended */
+ if (!IS_ERR_OR_NULL(hsotg->uphy)) {
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ usb_phy_set_suspend(hsotg->uphy, true);
+ spin_lock_irqsave(&hsotg->lock, flags);
+ }
+
+ /* After entering hibernation, hardware is no more accessible */
+ clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+skip_power_saving:
+ hsotg->lx_state = DWC2_L2;
+unlock:
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ return ret;
+}
+
+static int _dwc2_hcd_resume(struct usb_hcd *hcd)
+{
+ struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&hsotg->lock, flags);
+
+ if (hsotg->lx_state != DWC2_L2)
+ goto unlock;
+
+ if (!hsotg->core_params->hibernation) {
+ hsotg->lx_state = DWC2_L0;
+ goto unlock;
+ }
+
+ /*
+ * Set HW accessible bit before powering on the controller
+ * since an interrupt may rise.
+ */
+ set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+ /*
+ * Enable power if not already done.
+ * This must not be spinlocked since duration
+ * of this call is unknown.
+ */
+ if (!IS_ERR_OR_NULL(hsotg->uphy)) {
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ usb_phy_set_suspend(hsotg->uphy, false);
+ spin_lock_irqsave(&hsotg->lock, flags);
+ }
+
+ /* Exit hibernation */
+ ret = dwc2_exit_hibernation(hsotg, true);
+ if (ret && (ret != -ENOTSUPP))
+ dev_err(hsotg->dev, "exit hibernation failed\n");
+
+ hsotg->lx_state = DWC2_L0;
+
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ if (hsotg->bus_suspended) {
+ spin_lock_irqsave(&hsotg->lock, flags);
+ hsotg->flags.b.port_suspend_change = 1;
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+ dwc2_port_resume(hsotg);
+ } else {
+ /* Wait for controller to correctly update D+/D- level */
+ usleep_range(3000, 5000);
+
+ /*
+ * Clear Port Enable and Port Status changes.
+ * Enable Port Power.
+ */
+ dwc2_writel(HPRT0_PWR | HPRT0_CONNDET |
+ HPRT0_ENACHG, hsotg->regs + HPRT0);
+ /* Wait for controller to detect Port Connect */
+ usleep_range(5000, 7000);
+ }
+
+ return ret;
+unlock:
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
+ return ret;
+}
+
/* Returns the current frame number */
static int _dwc2_hcd_get_frame_number(struct usb_hcd *hcd)
{
@@ -2415,6 +2602,9 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
u32 tflags = 0;
void *buf;
unsigned long flags;
+ struct dwc2_qh *qh;
+ bool qh_allocated = false;
+ struct dwc2_qtd *qtd;
if (dbg_urb(urb)) {
dev_vdbg(hsotg->dev, "DWC OTG HCD URB Enqueue\n");
@@ -2468,7 +2658,7 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
"%s: unaligned transfer with no transfer_buffer",
__func__);
retval = -EINVAL;
- goto fail1;
+ goto fail0;
}
}
@@ -2493,34 +2683,63 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
urb->iso_frame_desc[i].length);
urb->hcpriv = dwc2_urb;
+ qh = (struct dwc2_qh *) ep->hcpriv;
+ /* Create QH for the endpoint if it doesn't exist */
+ if (!qh) {
+ qh = dwc2_hcd_qh_create(hsotg, dwc2_urb, mem_flags);
+ if (!qh) {
+ retval = -ENOMEM;
+ goto fail0;
+ }
+ ep->hcpriv = qh;
+ qh_allocated = true;
+ }
+
+ qtd = kzalloc(sizeof(*qtd), mem_flags);
+ if (!qtd) {
+ retval = -ENOMEM;
+ goto fail1;
+ }
spin_lock_irqsave(&hsotg->lock, flags);
retval = usb_hcd_link_urb_to_ep(hcd, urb);
- spin_unlock_irqrestore(&hsotg->lock, flags);
if (retval)
- goto fail1;
+ goto fail2;
- retval = dwc2_hcd_urb_enqueue(hsotg, dwc2_urb, &ep->hcpriv, mem_flags);
+ retval = dwc2_hcd_urb_enqueue(hsotg, dwc2_urb, qh, qtd);
if (retval)
- goto fail2;
+ goto fail3;
if (alloc_bandwidth) {
- spin_lock_irqsave(&hsotg->lock, flags);
dwc2_allocate_bus_bandwidth(hcd,
dwc2_hcd_get_ep_bandwidth(hsotg, ep),
urb);
- spin_unlock_irqrestore(&hsotg->lock, flags);
}
+ spin_unlock_irqrestore(&hsotg->lock, flags);
+
return 0;
-fail2:
- spin_lock_irqsave(&hsotg->lock, flags);
+fail3:
dwc2_urb->priv = NULL;
usb_hcd_unlink_urb_from_ep(hcd, urb);
+fail2:
spin_unlock_irqrestore(&hsotg->lock, flags);
-fail1:
urb->hcpriv = NULL;
+ kfree(qtd);
+fail1:
+ if (qh_allocated) {
+ struct dwc2_qtd *qtd2, *qtd2_tmp;
+
+ ep->hcpriv = NULL;
+ dwc2_hcd_qh_unlink(hsotg, qh);
+ /* Free each QTD in the QH's QTD list */
+ list_for_each_entry_safe(qtd2, qtd2_tmp, &qh->qtd_list,
+ qtd_list_entry)
+ dwc2_hcd_qtd_unlink_and_free(hsotg, qtd2, qh);
+ dwc2_hcd_qh_free(hsotg, qh);
+ }
+fail0:
kfree(dwc2_urb);
return retval;
@@ -2683,6 +2902,9 @@ static struct hc_driver dwc2_hc_driver = {
.hub_status_data = _dwc2_hcd_hub_status_data,
.hub_control = _dwc2_hcd_hub_control,
.clear_tt_buffer_complete = _dwc2_hcd_clear_tt_buffer_complete,
+
+ .bus_suspend = _dwc2_hcd_suspend,
+ .bus_resume = _dwc2_hcd_resume,
};
/*
@@ -2729,17 +2951,17 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg)
hsotg->status_buf = NULL;
}
- ahbcfg = readl(hsotg->regs + GAHBCFG);
+ ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG);
/* Disable all interrupts */
ahbcfg &= ~GAHBCFG_GLBL_INTR_EN;
- writel(ahbcfg, hsotg->regs + GAHBCFG);
- writel(0, hsotg->regs + GINTMSK);
+ dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG);
+ dwc2_writel(0, hsotg->regs + GINTMSK);
if (hsotg->hw_params.snpsid >= DWC2_CORE_REV_3_00a) {
- dctl = readl(hsotg->regs + DCTL);
+ dctl = dwc2_readl(hsotg->regs + DCTL);
dctl |= DCTL_SFTDISCON;
- writel(dctl, hsotg->regs + DCTL);
+ dwc2_writel(dctl, hsotg->regs + DCTL);
}
if (hsotg->wq_otg) {
@@ -2748,8 +2970,6 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg)
destroy_workqueue(hsotg->wq_otg);
}
- kfree(hsotg->core_params);
- hsotg->core_params = NULL;
del_timer(&hsotg->wkp_timer);
}
@@ -2762,29 +2982,12 @@ static void dwc2_hcd_release(struct dwc2_hsotg *hsotg)
}
/*
- * Sets all parameters to the given value.
- *
- * Assumes that the dwc2_core_params struct contains only integers.
- */
-void dwc2_set_all_params(struct dwc2_core_params *params, int value)
-{
- int *p = (int *)params;
- size_t size = sizeof(*params) / sizeof(*p);
- int i;
-
- for (i = 0; i < size; i++)
- p[i] = value;
-}
-EXPORT_SYMBOL_GPL(dwc2_set_all_params);
-
-/*
* Initializes the HCD. This function allocates memory for and initializes the
* static parts of the usb_hcd and dwc2_hsotg structures. It also registers the
* USB bus with the core and calls the hc_driver->start() function. It returns
* a negative error on failure.
*/
-int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params)
+int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
{
struct usb_hcd *hcd;
struct dwc2_host_chan *channel;
@@ -2797,15 +3000,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
dev_dbg(hsotg->dev, "DWC OTG HCD INIT\n");
- /* Detect config values from hardware */
- retval = dwc2_get_hwparams(hsotg);
-
- if (retval)
- return retval;
-
retval = -ENOMEM;
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
dev_dbg(hsotg->dev, "hcfg=%08x\n", hcfg);
#ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS
@@ -2821,15 +3018,6 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
hsotg->last_frame_num = HFNUM_MAX_FRNUM;
#endif
- hsotg->core_params = kzalloc(sizeof(*hsotg->core_params), GFP_KERNEL);
- if (!hsotg->core_params)
- goto error1;
-
- dwc2_set_all_params(hsotg->core_params, -1);
-
- /* Validate parameter values */
- dwc2_set_parameters(hsotg, params);
-
/* Check if the bus driver or platform code has setup a dma_mask */
if (hsotg->core_params->dma_enable > 0 &&
hsotg->dev->dma_mask == NULL) {
@@ -2947,6 +3135,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
/* Don't support SG list at this point */
hcd->self.sg_tablesize = 0;
+ if (!IS_ERR_OR_NULL(hsotg->uphy))
+ otg_set_host(hsotg->uphy->otg, &hcd->self);
+
/*
* Finish generic HCD initialization and start the HCD. This function
* allocates the DMA buffer pool, registers the USB bus, requests the
@@ -2979,7 +3170,6 @@ error1:
dev_err(hsotg->dev, "%s() FAILED, returning %d\n", __func__, retval);
return retval;
}
-EXPORT_SYMBOL_GPL(dwc2_hcd_init);
/*
* Removes the HCD.
@@ -3000,6 +3190,9 @@ void dwc2_hcd_remove(struct dwc2_hsotg *hsotg)
return;
}
+ if (!IS_ERR_OR_NULL(hsotg->uphy))
+ otg_set_host(hsotg->uphy->otg, NULL);
+
usb_remove_hcd(hcd);
hsotg->priv = NULL;
dwc2_hcd_release(hsotg);
@@ -3010,4 +3203,3 @@ void dwc2_hcd_remove(struct dwc2_hsotg *hsotg)
kfree(hsotg->frame_num_array);
#endif
}
-EXPORT_SYMBOL_GPL(dwc2_hcd_remove);
diff --git a/kernel/drivers/usb/dwc2/hcd.h b/kernel/drivers/usb/dwc2/hcd.h
index e69a843d8..f105bada2 100644
--- a/kernel/drivers/usb/dwc2/hcd.h
+++ b/kernel/drivers/usb/dwc2/hcd.h
@@ -371,10 +371,10 @@ static inline struct usb_hcd *dwc2_hsotg_to_hcd(struct dwc2_hsotg *hsotg)
*/
static inline void disable_hc_int(struct dwc2_hsotg *hsotg, int chnum, u32 intr)
{
- u32 mask = readl(hsotg->regs + HCINTMSK(chnum));
+ u32 mask = dwc2_readl(hsotg->regs + HCINTMSK(chnum));
mask &= ~intr;
- writel(mask, hsotg->regs + HCINTMSK(chnum));
+ dwc2_writel(mask, hsotg->regs + HCINTMSK(chnum));
}
/*
@@ -382,11 +382,11 @@ static inline void disable_hc_int(struct dwc2_hsotg *hsotg, int chnum, u32 intr)
*/
static inline int dwc2_is_host_mode(struct dwc2_hsotg *hsotg)
{
- return (readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) != 0;
+ return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) != 0;
}
static inline int dwc2_is_device_mode(struct dwc2_hsotg *hsotg)
{
- return (readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) == 0;
+ return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) == 0;
}
/*
@@ -395,7 +395,7 @@ static inline int dwc2_is_device_mode(struct dwc2_hsotg *hsotg)
*/
static inline u32 dwc2_read_hprt0(struct dwc2_hsotg *hsotg)
{
- u32 hprt0 = readl(hsotg->regs + HPRT0);
+ u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0);
hprt0 &= ~(HPRT0_ENA | HPRT0_CONNDET | HPRT0_ENACHG | HPRT0_OVRCURRCHG);
return hprt0;
@@ -451,13 +451,8 @@ static inline u8 dwc2_hcd_is_pipe_out(struct dwc2_hcd_pipe_info *pipe)
return !dwc2_hcd_is_pipe_in(pipe);
}
-extern int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params);
+extern int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq);
extern void dwc2_hcd_remove(struct dwc2_hsotg *hsotg);
-extern void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
- const struct dwc2_core_params *params);
-extern void dwc2_set_all_params(struct dwc2_core_params *params, int value);
-extern int dwc2_get_hwparams(struct dwc2_hsotg *hsotg);
/* Transaction Execution Functions */
extern enum dwc2_transaction_type dwc2_hcd_select_transactions(
@@ -468,6 +463,9 @@ extern void dwc2_hcd_queue_transactions(struct dwc2_hsotg *hsotg,
/* Schedule Queue Functions */
/* Implemented in hcd_queue.c */
extern void dwc2_hcd_init_usecs(struct dwc2_hsotg *hsotg);
+extern struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
+ struct dwc2_hcd_urb *urb,
+ gfp_t mem_flags);
extern void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
extern int dwc2_hcd_qh_add(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
extern void dwc2_hcd_qh_unlink(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
@@ -476,7 +474,7 @@ extern void dwc2_hcd_qh_deactivate(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
extern void dwc2_hcd_qtd_init(struct dwc2_qtd *qtd, struct dwc2_hcd_urb *urb);
extern int dwc2_hcd_qtd_add(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
- struct dwc2_qh **qh, gfp_t mem_flags);
+ struct dwc2_qh *qh);
/* Unlinks and frees a QTD */
static inline void dwc2_hcd_qtd_unlink_and_free(struct dwc2_hsotg *hsotg,
@@ -582,7 +580,8 @@ static inline u16 dwc2_micro_frame_num(u16 frame)
*/
static inline u32 dwc2_read_core_intr(struct dwc2_hsotg *hsotg)
{
- return readl(hsotg->regs + GINTSTS) & readl(hsotg->regs + GINTMSK);
+ return dwc2_readl(hsotg->regs + GINTSTS) &
+ dwc2_readl(hsotg->regs + GINTMSK);
}
static inline u32 dwc2_hcd_urb_get_status(struct dwc2_hcd_urb *dwc2_urb)
@@ -734,7 +733,7 @@ do { \
qtd_list_entry); \
if (usb_pipeint(_qtd_->urb->pipe) && \
(_qh_)->start_split_frame != 0 && !_qtd_->complete_split) { \
- _hfnum_.d32 = readl((_hcd_)->regs + HFNUM); \
+ _hfnum_.d32 = dwc2_readl((_hcd_)->regs + HFNUM); \
switch (_hfnum_.b.frnum & 0x7) { \
case 7: \
(_hcd_)->hfnum_7_samples_##_letter_++; \
diff --git a/kernel/drivers/usb/dwc2/hcd_ddma.c b/kernel/drivers/usb/dwc2/hcd_ddma.c
index 3376177e4..78993aba9 100644
--- a/kernel/drivers/usb/dwc2/hcd_ddma.c
+++ b/kernel/drivers/usb/dwc2/hcd_ddma.c
@@ -169,19 +169,19 @@ static void dwc2_per_sched_enable(struct dwc2_hsotg *hsotg, u32 fr_list_en)
spin_lock_irqsave(&hsotg->lock, flags);
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
if (hcfg & HCFG_PERSCHEDENA) {
/* already enabled */
spin_unlock_irqrestore(&hsotg->lock, flags);
return;
}
- writel(hsotg->frame_list_dma, hsotg->regs + HFLBADDR);
+ dwc2_writel(hsotg->frame_list_dma, hsotg->regs + HFLBADDR);
hcfg &= ~HCFG_FRLISTEN_MASK;
hcfg |= fr_list_en | HCFG_PERSCHEDENA;
dev_vdbg(hsotg->dev, "Enabling Periodic schedule\n");
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
spin_unlock_irqrestore(&hsotg->lock, flags);
}
@@ -193,7 +193,7 @@ static void dwc2_per_sched_disable(struct dwc2_hsotg *hsotg)
spin_lock_irqsave(&hsotg->lock, flags);
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
if (!(hcfg & HCFG_PERSCHEDENA)) {
/* already disabled */
spin_unlock_irqrestore(&hsotg->lock, flags);
@@ -202,7 +202,7 @@ static void dwc2_per_sched_disable(struct dwc2_hsotg *hsotg)
hcfg &= ~HCFG_PERSCHEDENA;
dev_vdbg(hsotg->dev, "Disabling Periodic schedule\n");
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
spin_unlock_irqrestore(&hsotg->lock, flags);
}
diff --git a/kernel/drivers/usb/dwc2/hcd_intr.c b/kernel/drivers/usb/dwc2/hcd_intr.c
index 551ba878b..bda0b21b8 100644
--- a/kernel/drivers/usb/dwc2/hcd_intr.c
+++ b/kernel/drivers/usb/dwc2/hcd_intr.c
@@ -148,7 +148,7 @@ static void dwc2_sof_intr(struct dwc2_hsotg *hsotg)
dwc2_hcd_queue_transactions(hsotg, tr_type);
/* Clear interrupt */
- writel(GINTSTS_SOF, hsotg->regs + GINTSTS);
+ dwc2_writel(GINTSTS_SOF, hsotg->regs + GINTSTS);
}
/*
@@ -164,7 +164,7 @@ static void dwc2_rx_fifo_level_intr(struct dwc2_hsotg *hsotg)
if (dbg_perio())
dev_vdbg(hsotg->dev, "--RxFIFO Level Interrupt--\n");
- grxsts = readl(hsotg->regs + GRXSTSP);
+ grxsts = dwc2_readl(hsotg->regs + GRXSTSP);
chnum = (grxsts & GRXSTS_HCHNUM_MASK) >> GRXSTS_HCHNUM_SHIFT;
chan = hsotg->hc_ptr_array[chnum];
if (!chan) {
@@ -247,11 +247,11 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
dev_vdbg(hsotg->dev, "%s(%p)\n", __func__, hsotg);
/* Every time when port enables calculate HFIR.FrInterval */
- hfir = readl(hsotg->regs + HFIR);
+ hfir = dwc2_readl(hsotg->regs + HFIR);
hfir &= ~HFIR_FRINT_MASK;
hfir |= dwc2_calc_frame_interval(hsotg) << HFIR_FRINT_SHIFT &
HFIR_FRINT_MASK;
- writel(hfir, hsotg->regs + HFIR);
+ dwc2_writel(hfir, hsotg->regs + HFIR);
/* Check if we need to adjust the PHY clock speed for low power */
if (!params->host_support_fs_ls_low_power) {
@@ -260,7 +260,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
return;
}
- usbcfg = readl(hsotg->regs + GUSBCFG);
+ usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
prtspd = (hprt0 & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;
if (prtspd == HPRT0_SPD_LOW_SPEED || prtspd == HPRT0_SPD_FULL_SPEED) {
@@ -268,11 +268,11 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
if (!(usbcfg & GUSBCFG_PHY_LP_CLK_SEL)) {
/* Set PHY low power clock select for FS/LS devices */
usbcfg |= GUSBCFG_PHY_LP_CLK_SEL;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
do_reset = 1;
}
- hcfg = readl(hsotg->regs + HCFG);
+ hcfg = dwc2_readl(hsotg->regs + HCFG);
fslspclksel = (hcfg & HCFG_FSLSPCLKSEL_MASK) >>
HCFG_FSLSPCLKSEL_SHIFT;
@@ -286,7 +286,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
fslspclksel = HCFG_FSLSPCLKSEL_6_MHZ;
hcfg &= ~HCFG_FSLSPCLKSEL_MASK;
hcfg |= fslspclksel << HCFG_FSLSPCLKSEL_SHIFT;
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
do_reset = 1;
}
} else {
@@ -297,7 +297,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
fslspclksel = HCFG_FSLSPCLKSEL_48_MHZ;
hcfg &= ~HCFG_FSLSPCLKSEL_MASK;
hcfg |= fslspclksel << HCFG_FSLSPCLKSEL_SHIFT;
- writel(hcfg, hsotg->regs + HCFG);
+ dwc2_writel(hcfg, hsotg->regs + HCFG);
do_reset = 1;
}
}
@@ -305,7 +305,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
/* Not low power */
if (usbcfg & GUSBCFG_PHY_LP_CLK_SEL) {
usbcfg &= ~GUSBCFG_PHY_LP_CLK_SEL;
- writel(usbcfg, hsotg->regs + GUSBCFG);
+ dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
do_reset = 1;
}
}
@@ -332,7 +332,7 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg)
dev_vdbg(hsotg->dev, "--Port Interrupt--\n");
- hprt0 = readl(hsotg->regs + HPRT0);
+ hprt0 = dwc2_readl(hsotg->regs + HPRT0);
hprt0_modify = hprt0;
/*
@@ -350,6 +350,9 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg)
dev_vdbg(hsotg->dev,
"--Port Interrupt HPRT0=0x%08x Port Connect Detected--\n",
hprt0);
+ if (hsotg->lx_state != DWC2_L0)
+ usb_hcd_resume_root_hub(hsotg->priv);
+
hsotg->flags.b.port_connect_status_change = 1;
hsotg->flags.b.port_connect_status = 1;
hprt0_modify |= HPRT0_CONNDET;
@@ -385,7 +388,7 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg)
}
/* Clear Port Interrupts */
- writel(hprt0_modify, hsotg->regs + HPRT0);
+ dwc2_writel(hprt0_modify, hsotg->regs + HPRT0);
}
/*
@@ -405,7 +408,7 @@ static u32 dwc2_get_actual_xfer_length(struct dwc2_hsotg *hsotg,
{
u32 hctsiz, count, length;
- hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
if (halt_status == DWC2_HC_XFER_COMPLETE) {
if (chan->ep_is_in) {
@@ -463,10 +466,15 @@ static int dwc2_update_urb_state(struct dwc2_hsotg *hsotg,
}
/* Non DWORD-aligned buffer case handling */
- if (chan->align_buf && xfer_length && chan->ep_is_in) {
+ if (chan->align_buf && xfer_length) {
dev_vdbg(hsotg->dev, "%s(): non-aligned buffer\n", __func__);
- memcpy(urb->buf + urb->actual_length, chan->qh->dw_align_buf,
- xfer_length);
+ dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma,
+ chan->qh->dw_align_buf_size,
+ chan->ep_is_in ?
+ DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ if (chan->ep_is_in)
+ memcpy(urb->buf + urb->actual_length,
+ chan->qh->dw_align_buf, xfer_length);
}
dev_vdbg(hsotg->dev, "urb->actual_length=%d xfer_length=%d\n",
@@ -483,7 +491,7 @@ static int dwc2_update_urb_state(struct dwc2_hsotg *hsotg,
urb->status = 0;
}
- hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
dev_vdbg(hsotg->dev, "DWC_otg: %s: %s, channel %d\n",
__func__, (chan->ep_is_in ? "IN" : "OUT"), chnum);
dev_vdbg(hsotg->dev, " chan->xfer_len %d\n", chan->xfer_len);
@@ -506,7 +514,7 @@ void dwc2_hcd_save_data_toggle(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan, int chnum,
struct dwc2_qtd *qtd)
{
- u32 hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
+ u32 hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
u32 pid = (hctsiz & TSIZ_SC_MC_PID_MASK) >> TSIZ_SC_MC_PID_SHIFT;
if (chan->ep_type != USB_ENDPOINT_XFER_CONTROL) {
@@ -552,13 +560,18 @@ static enum dwc2_halt_status dwc2_update_isoc_urb_state(
chan, chnum, qtd, halt_status, NULL);
/* Non DWORD-aligned buffer case handling */
- if (chan->align_buf && frame_desc->actual_length &&
- chan->ep_is_in) {
+ if (chan->align_buf && frame_desc->actual_length) {
dev_vdbg(hsotg->dev, "%s(): non-aligned buffer\n",
__func__);
- memcpy(urb->buf + frame_desc->offset +
- qtd->isoc_split_offset, chan->qh->dw_align_buf,
- frame_desc->actual_length);
+ dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma,
+ chan->qh->dw_align_buf_size,
+ chan->ep_is_in ?
+ DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ if (chan->ep_is_in)
+ memcpy(urb->buf + frame_desc->offset +
+ qtd->isoc_split_offset,
+ chan->qh->dw_align_buf,
+ frame_desc->actual_length);
}
break;
case DWC2_HC_XFER_FRAME_OVERRUN:
@@ -581,13 +594,18 @@ static enum dwc2_halt_status dwc2_update_isoc_urb_state(
chan, chnum, qtd, halt_status, NULL);
/* Non DWORD-aligned buffer case handling */
- if (chan->align_buf && frame_desc->actual_length &&
- chan->ep_is_in) {
+ if (chan->align_buf && frame_desc->actual_length) {
dev_vdbg(hsotg->dev, "%s(): non-aligned buffer\n",
__func__);
- memcpy(urb->buf + frame_desc->offset +
- qtd->isoc_split_offset, chan->qh->dw_align_buf,
- frame_desc->actual_length);
+ dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma,
+ chan->qh->dw_align_buf_size,
+ chan->ep_is_in ?
+ DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ if (chan->ep_is_in)
+ memcpy(urb->buf + frame_desc->offset +
+ qtd->isoc_split_offset,
+ chan->qh->dw_align_buf,
+ frame_desc->actual_length);
}
/* Skip whole frame */
@@ -753,9 +771,9 @@ cleanup:
}
}
- haintmsk = readl(hsotg->regs + HAINTMSK);
+ haintmsk = dwc2_readl(hsotg->regs + HAINTMSK);
haintmsk &= ~(1 << chan->hc_num);
- writel(haintmsk, hsotg->regs + HAINTMSK);
+ dwc2_writel(haintmsk, hsotg->regs + HAINTMSK);
/* Try to queue more transfers now that there's a free channel */
tr_type = dwc2_hcd_select_transactions(hsotg);
@@ -802,9 +820,9 @@ static void dwc2_halt_channel(struct dwc2_hsotg *hsotg,
* is enabled so that the non-periodic schedule will
* be processed
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk |= GINTSTS_NPTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
} else {
dev_vdbg(hsotg->dev, "isoc/intr\n");
/*
@@ -821,9 +839,9 @@ static void dwc2_halt_channel(struct dwc2_hsotg *hsotg,
* enabled so that the periodic schedule will be
* processed
*/
- gintmsk = readl(hsotg->regs + GINTMSK);
+ gintmsk = dwc2_readl(hsotg->regs + GINTMSK);
gintmsk |= GINTSTS_PTXFEMP;
- writel(gintmsk, hsotg->regs + GINTMSK);
+ dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
}
}
}
@@ -888,7 +906,7 @@ static void dwc2_complete_periodic_xfer(struct dwc2_hsotg *hsotg,
struct dwc2_qtd *qtd,
enum dwc2_halt_status halt_status)
{
- u32 hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
+ u32 hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
qtd->error_count = 0;
@@ -923,6 +941,8 @@ static int dwc2_xfercomp_isoc_split_in(struct dwc2_hsotg *hsotg,
if (chan->align_buf) {
dev_vdbg(hsotg->dev, "%s(): non-aligned buffer\n", __func__);
+ dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma,
+ chan->qh->dw_align_buf_size, DMA_FROM_DEVICE);
memcpy(qtd->urb->buf + frame_desc->offset +
qtd->isoc_split_offset, chan->qh->dw_align_buf, len);
}
@@ -1152,13 +1172,19 @@ static void dwc2_update_urb_state_abn(struct dwc2_hsotg *hsotg,
/* Non DWORD-aligned buffer case handling */
if (chan->align_buf && xfer_length && chan->ep_is_in) {
dev_vdbg(hsotg->dev, "%s(): non-aligned buffer\n", __func__);
- memcpy(urb->buf + urb->actual_length, chan->qh->dw_align_buf,
- xfer_length);
+ dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma,
+ chan->qh->dw_align_buf_size,
+ chan->ep_is_in ?
+ DMA_FROM_DEVICE : DMA_TO_DEVICE);
+ if (chan->ep_is_in)
+ memcpy(urb->buf + urb->actual_length,
+ chan->qh->dw_align_buf,
+ xfer_length);
}
urb->actual_length += xfer_length;
- hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
dev_vdbg(hsotg->dev, "DWC_otg: %s: %s, channel %d\n",
__func__, (chan->ep_is_in ? "IN" : "OUT"), chnum);
dev_vdbg(hsotg->dev, " chan->start_pkt_count %d\n",
@@ -1182,6 +1208,16 @@ static void dwc2_hc_nak_intr(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan, int chnum,
struct dwc2_qtd *qtd)
{
+ if (!qtd) {
+ dev_dbg(hsotg->dev, "%s: qtd is NULL\n", __func__);
+ return;
+ }
+
+ if (!qtd->urb) {
+ dev_dbg(hsotg->dev, "%s: qtd->urb is NULL\n", __func__);
+ return;
+ }
+
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "--Host Channel %d Interrupt: NAK Received--\n",
chnum);
@@ -1469,10 +1505,10 @@ static void dwc2_hc_ahberr_intr(struct dwc2_hsotg *hsotg,
dwc2_hc_handle_tt_clear(hsotg, chan, qtd);
- hcchar = readl(hsotg->regs + HCCHAR(chnum));
- hcsplt = readl(hsotg->regs + HCSPLT(chnum));
- hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
- hc_dma = readl(hsotg->regs + HCDMA(chnum));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum));
+ hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chnum));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
+ hc_dma = dwc2_readl(hsotg->regs + HCDMA(chnum));
dev_err(hsotg->dev, "AHB ERROR, Channel %d\n", chnum);
dev_err(hsotg->dev, " hcchar 0x%08x, hcsplt 0x%08x\n", hcchar, hcsplt);
@@ -1685,10 +1721,10 @@ static bool dwc2_halt_status_ok(struct dwc2_hsotg *hsotg,
* This code is here only as a check. This condition should
* never happen. Ignore the halt if it does occur.
*/
- hcchar = readl(hsotg->regs + HCCHAR(chnum));
- hctsiz = readl(hsotg->regs + HCTSIZ(chnum));
- hcintmsk = readl(hsotg->regs + HCINTMSK(chnum));
- hcsplt = readl(hsotg->regs + HCSPLT(chnum));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum));
+ hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum));
+ hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum));
+ hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chnum));
dev_dbg(hsotg->dev,
"%s: chan->halt_status DWC2_HC_XFER_NO_HALT_STATUS,\n",
__func__);
@@ -1712,7 +1748,7 @@ static bool dwc2_halt_status_ok(struct dwc2_hsotg *hsotg,
* when the halt interrupt occurs. Halt the channel again if it does
* occur.
*/
- hcchar = readl(hsotg->regs + HCCHAR(chnum));
+ hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum));
if (hcchar & HCCHAR_CHDIS) {
dev_warn(hsotg->dev,
"%s: hcchar.chdis set unexpectedly, hcchar 0x%08x, trying to halt again\n",
@@ -1772,7 +1808,7 @@ static void dwc2_hc_chhltd_intr_dma(struct dwc2_hsotg *hsotg,
return;
}
- hcintmsk = readl(hsotg->regs + HCINTMSK(chnum));
+ hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum));
if (chan->hcint & HCINTMSK_XFERCOMPL) {
/*
@@ -1867,7 +1903,7 @@ static void dwc2_hc_chhltd_intr_dma(struct dwc2_hsotg *hsotg,
dev_err(hsotg->dev,
"hcint 0x%08x, intsts 0x%08x\n",
chan->hcint,
- readl(hsotg->regs + GINTSTS));
+ dwc2_readl(hsotg->regs + GINTSTS));
goto error;
}
}
@@ -1913,6 +1949,24 @@ static void dwc2_hc_chhltd_intr(struct dwc2_hsotg *hsotg,
}
}
+/*
+ * Check if the given qtd is still the top of the list (and thus valid).
+ *
+ * If dwc2_hcd_qtd_unlink_and_free() has been called since we grabbed
+ * the qtd from the top of the list, this will return false (otherwise true).
+ */
+static bool dwc2_check_qtd_still_ok(struct dwc2_qtd *qtd, struct dwc2_qh *qh)
+{
+ struct dwc2_qtd *cur_head;
+
+ if (qh == NULL)
+ return false;
+
+ cur_head = list_first_entry(&qh->qtd_list, struct dwc2_qtd,
+ qtd_list_entry);
+ return (cur_head == qtd);
+}
+
/* Handles interrupt for a specific Host Channel */
static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum)
{
@@ -1922,11 +1976,11 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum)
chan = hsotg->hc_ptr_array[chnum];
- hcint = readl(hsotg->regs + HCINT(chnum));
- hcintmsk = readl(hsotg->regs + HCINTMSK(chnum));
+ hcint = dwc2_readl(hsotg->regs + HCINT(chnum));
+ hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum));
if (!chan) {
dev_err(hsotg->dev, "## hc_ptr_array for channel is NULL ##\n");
- writel(hcint, hsotg->regs + HCINT(chnum));
+ dwc2_writel(hcint, hsotg->regs + HCINT(chnum));
return;
}
@@ -1938,7 +1992,7 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum)
hcint, hcintmsk, hcint & hcintmsk);
}
- writel(hcint, hsotg->regs + HCINT(chnum));
+ dwc2_writel(hcint, hsotg->regs + HCINT(chnum));
chan->hcint = hcint;
hcint &= hcintmsk;
@@ -1995,27 +2049,59 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum)
*/
hcint &= ~HCINTMSK_NYET;
}
- if (hcint & HCINTMSK_CHHLTD)
+
+ if (hcint & HCINTMSK_CHHLTD) {
dwc2_hc_chhltd_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_AHBERR)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_AHBERR) {
dwc2_hc_ahberr_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_STALL)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_STALL) {
dwc2_hc_stall_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_NAK)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_NAK) {
dwc2_hc_nak_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_ACK)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_ACK) {
dwc2_hc_ack_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_NYET)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_NYET) {
dwc2_hc_nyet_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_XACTERR)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_XACTERR) {
dwc2_hc_xacterr_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_BBLERR)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_BBLERR) {
dwc2_hc_babble_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_FRMOVRUN)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_FRMOVRUN) {
dwc2_hc_frmovrun_intr(hsotg, chan, chnum, qtd);
- if (hcint & HCINTMSK_DATATGLERR)
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+ if (hcint & HCINTMSK_DATATGLERR) {
dwc2_hc_datatglerr_intr(hsotg, chan, chnum, qtd);
+ if (!dwc2_check_qtd_still_ok(qtd, chan->qh))
+ goto exit;
+ }
+exit:
chan->hcint = 0;
}
@@ -2030,7 +2116,7 @@ static void dwc2_hc_intr(struct dwc2_hsotg *hsotg)
u32 haint;
int i;
- haint = readl(hsotg->regs + HAINT);
+ haint = dwc2_readl(hsotg->regs + HAINT);
if (dbg_perio()) {
dev_vdbg(hsotg->dev, "%s()\n", __func__);
@@ -2098,8 +2184,8 @@ irqreturn_t dwc2_handle_hcd_intr(struct dwc2_hsotg *hsotg)
"DWC OTG HCD Finished Servicing Interrupts\n");
dev_vdbg(hsotg->dev,
"DWC OTG HCD gintsts=0x%08x gintmsk=0x%08x\n",
- readl(hsotg->regs + GINTSTS),
- readl(hsotg->regs + GINTMSK));
+ dwc2_readl(hsotg->regs + GINTSTS),
+ dwc2_readl(hsotg->regs + GINTMSK));
}
}
diff --git a/kernel/drivers/usb/dwc2/hcd_queue.c b/kernel/drivers/usb/dwc2/hcd_queue.c
index bb97838bc..7d8d06cfe 100644
--- a/kernel/drivers/usb/dwc2/hcd_queue.c
+++ b/kernel/drivers/usb/dwc2/hcd_queue.c
@@ -106,6 +106,9 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
USB_SPEED_HIGH : dev_speed, qh->ep_is_in,
qh->ep_type == USB_ENDPOINT_XFER_ISOC,
bytecount));
+
+ /* Ensure frame_number corresponds to the reality */
+ hsotg->frame_number = dwc2_hcd_get_frame_number(hsotg);
/* Start in a slightly future (micro)frame */
qh->sched_frame = dwc2_frame_num_inc(hsotg->frame_number,
SCHEDULE_SLOP);
@@ -115,7 +118,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
if (qh->ep_type == USB_ENDPOINT_XFER_INT)
qh->interval = 8;
#endif
- hprt = readl(hsotg->regs + HPRT0);
+ hprt = dwc2_readl(hsotg->regs + HPRT0);
prtspd = (hprt & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;
if (prtspd == HPRT0_SPD_HIGH_SPEED &&
(dev_speed == USB_SPEED_LOW ||
@@ -191,7 +194,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
*
* Return: Pointer to the newly allocated QH, or NULL on error
*/
-static struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
+struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
struct dwc2_hcd_urb *urb,
gfp_t mem_flags)
{
@@ -229,11 +232,13 @@ static struct dwc2_qh *dwc2_hcd_qh_create(struct dwc2_hsotg *hsotg,
*/
void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
{
- if (hsotg->core_params->dma_desc_enable > 0)
+ if (hsotg->core_params->dma_desc_enable > 0) {
dwc2_hcd_qh_free_ddma(hsotg, qh);
- else if (qh->dw_align_buf)
- dma_free_coherent(hsotg->dev, qh->dw_align_buf_size,
- qh->dw_align_buf, qh->dw_align_buf_dma);
+ } else {
+ /* kfree(NULL) is safe */
+ kfree(qh->dw_align_buf);
+ qh->dw_align_buf_dma = (dma_addr_t)0;
+ }
kfree(qh);
}
@@ -581,6 +586,14 @@ int dwc2_hcd_qh_add(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
/* QH already in a schedule */
return 0;
+ if (!dwc2_frame_num_le(qh->sched_frame, hsotg->frame_number) &&
+ !hsotg->frame_number) {
+ dev_dbg(hsotg->dev,
+ "reset frame number counter\n");
+ qh->sched_frame = dwc2_frame_num_inc(hsotg->frame_number,
+ SCHEDULE_SLOP);
+ }
+
/* Add the new QH to the appropriate schedule */
if (dwc2_qh_is_non_per(qh)) {
/* Always start in inactive schedule */
@@ -593,9 +606,9 @@ int dwc2_hcd_qh_add(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
if (status)
return status;
if (!hsotg->periodic_qh_count) {
- intr_mask = readl(hsotg->regs + GINTMSK);
+ intr_mask = dwc2_readl(hsotg->regs + GINTMSK);
intr_mask |= GINTSTS_SOF;
- writel(intr_mask, hsotg->regs + GINTMSK);
+ dwc2_writel(intr_mask, hsotg->regs + GINTMSK);
}
hsotg->periodic_qh_count++;
@@ -630,9 +643,9 @@ void dwc2_hcd_qh_unlink(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
dwc2_deschedule_periodic(hsotg, qh);
hsotg->periodic_qh_count--;
if (!hsotg->periodic_qh_count) {
- intr_mask = readl(hsotg->regs + GINTMSK);
+ intr_mask = dwc2_readl(hsotg->regs + GINTMSK);
intr_mask &= ~GINTSTS_SOF;
- writel(intr_mask, hsotg->regs + GINTMSK);
+ dwc2_writel(intr_mask, hsotg->regs + GINTMSK);
}
}
@@ -761,67 +774,36 @@ void dwc2_hcd_qtd_init(struct dwc2_qtd *qtd, struct dwc2_hcd_urb *urb)
/**
* dwc2_hcd_qtd_add() - Adds a QTD to the QTD-list of a QH
+ * Caller must hold driver lock.
*
* @hsotg: The DWC HCD structure
* @qtd: The QTD to add
- * @qh: Out parameter to return queue head
- * @atomic_alloc: Flag to do atomic alloc if needed
+ * @qh: Queue head to add qtd to
*
* Return: 0 if successful, negative error code otherwise
*
- * Finds the correct QH to place the QTD into. If it does not find a QH, it
- * will create a new QH. If the QH to which the QTD is added is not currently
- * scheduled, it is placed into the proper schedule based on its EP type.
+ * If the QH to which the QTD is added is not currently scheduled, it is placed
+ * into the proper schedule based on its EP type.
*/
int dwc2_hcd_qtd_add(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
- struct dwc2_qh **qh, gfp_t mem_flags)
+ struct dwc2_qh *qh)
{
- struct dwc2_hcd_urb *urb = qtd->urb;
- unsigned long flags;
- int allocated = 0;
int retval;
- /*
- * Get the QH which holds the QTD-list to insert to. Create QH if it
- * doesn't exist.
- */
- if (*qh == NULL) {
- *qh = dwc2_hcd_qh_create(hsotg, urb, mem_flags);
- if (*qh == NULL)
- return -ENOMEM;
- allocated = 1;
+ if (unlikely(!qh)) {
+ dev_err(hsotg->dev, "%s: Invalid QH\n", __func__);
+ retval = -EINVAL;
+ goto fail;
}
- spin_lock_irqsave(&hsotg->lock, flags);
-
- retval = dwc2_hcd_qh_add(hsotg, *qh);
+ retval = dwc2_hcd_qh_add(hsotg, qh);
if (retval)
goto fail;
- qtd->qh = *qh;
- list_add_tail(&qtd->qtd_list_entry, &(*qh)->qtd_list);
- spin_unlock_irqrestore(&hsotg->lock, flags);
+ qtd->qh = qh;
+ list_add_tail(&qtd->qtd_list_entry, &qh->qtd_list);
return 0;
-
fail:
- if (allocated) {
- struct dwc2_qtd *qtd2, *qtd2_tmp;
- struct dwc2_qh *qh_tmp = *qh;
-
- *qh = NULL;
- dwc2_hcd_qh_unlink(hsotg, qh_tmp);
-
- /* Free each QTD in the QH's QTD list */
- list_for_each_entry_safe(qtd2, qtd2_tmp, &qh_tmp->qtd_list,
- qtd_list_entry)
- dwc2_hcd_qtd_unlink_and_free(hsotg, qtd2, qh_tmp);
-
- spin_unlock_irqrestore(&hsotg->lock, flags);
- dwc2_hcd_qh_free(hsotg, qh_tmp);
- } else {
- spin_unlock_irqrestore(&hsotg->lock, flags);
- }
-
return retval;
}
diff --git a/kernel/drivers/usb/dwc2/hw.h b/kernel/drivers/usb/dwc2/hw.h
index d0a5ed8fa..553f24606 100644
--- a/kernel/drivers/usb/dwc2/hw.h
+++ b/kernel/drivers/usb/dwc2/hw.h
@@ -142,6 +142,7 @@
#define GINTSTS_RESETDET (1 << 23)
#define GINTSTS_FET_SUSP (1 << 22)
#define GINTSTS_INCOMPL_IP (1 << 21)
+#define GINTSTS_INCOMPL_SOOUT (1 << 21)
#define GINTSTS_INCOMPL_SOIN (1 << 20)
#define GINTSTS_OEPINT (1 << 19)
#define GINTSTS_IEPINT (1 << 18)
diff --git a/kernel/drivers/usb/dwc2/platform.c b/kernel/drivers/usb/dwc2/platform.c
index 185663e0b..39c1cbf0e 100644
--- a/kernel/drivers/usb/dwc2/platform.c
+++ b/kernel/drivers/usb/dwc2/platform.c
@@ -37,16 +37,20 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/of_device.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_data/s3c-hsotg.h>
#include <linux/usb/of.h>
#include "core.h"
#include "hcd.h"
+#include "debug.h"
static const char dwc2_driver_name[] = "dwc2";
@@ -76,6 +80,8 @@ static const struct dwc2_core_params params_bcm2835 = {
.reload_ctl = 0,
.ahbcfg = 0x10,
.uframe_sched = 0,
+ .external_id_pin_ctl = -1,
+ .hibernation = -1,
};
static const struct dwc2_core_params params_rk3066 = {
@@ -102,10 +108,177 @@ static const struct dwc2_core_params params_rk3066 = {
.host_ls_low_power_phy_clk = -1,
.ts_dline = -1,
.reload_ctl = -1,
- .ahbcfg = 0x7, /* INCR16 */
+ .ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
+ GAHBCFG_HBSTLEN_SHIFT,
.uframe_sched = -1,
+ .external_id_pin_ctl = -1,
+ .hibernation = -1,
};
+static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
+{
+ struct platform_device *pdev = to_platform_device(hsotg->dev);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies),
+ hsotg->supplies);
+ if (ret)
+ return ret;
+
+ if (hsotg->clk) {
+ ret = clk_prepare_enable(hsotg->clk);
+ if (ret)
+ return ret;
+ }
+
+ if (hsotg->uphy)
+ ret = usb_phy_init(hsotg->uphy);
+ else if (hsotg->plat && hsotg->plat->phy_init)
+ ret = hsotg->plat->phy_init(pdev, hsotg->plat->phy_type);
+ else {
+ ret = phy_power_on(hsotg->phy);
+ if (ret == 0)
+ ret = phy_init(hsotg->phy);
+ }
+
+ return ret;
+}
+
+/**
+ * dwc2_lowlevel_hw_enable - enable platform lowlevel hw resources
+ * @hsotg: The driver state
+ *
+ * A wrapper for platform code responsible for controlling
+ * low-level USB platform resources (phy, clock, regulators)
+ */
+int dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
+{
+ int ret = __dwc2_lowlevel_hw_enable(hsotg);
+
+ if (ret == 0)
+ hsotg->ll_hw_enabled = true;
+ return ret;
+}
+
+static int __dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)
+{
+ struct platform_device *pdev = to_platform_device(hsotg->dev);
+ int ret = 0;
+
+ if (hsotg->uphy)
+ usb_phy_shutdown(hsotg->uphy);
+ else if (hsotg->plat && hsotg->plat->phy_exit)
+ ret = hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type);
+ else {
+ ret = phy_exit(hsotg->phy);
+ if (ret == 0)
+ ret = phy_power_off(hsotg->phy);
+ }
+ if (ret)
+ return ret;
+
+ if (hsotg->clk)
+ clk_disable_unprepare(hsotg->clk);
+
+ ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
+ hsotg->supplies);
+
+ return ret;
+}
+
+/**
+ * dwc2_lowlevel_hw_disable - disable platform lowlevel hw resources
+ * @hsotg: The driver state
+ *
+ * A wrapper for platform code responsible for controlling
+ * low-level USB platform resources (phy, clock, regulators)
+ */
+int dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)
+{
+ int ret = __dwc2_lowlevel_hw_disable(hsotg);
+
+ if (ret == 0)
+ hsotg->ll_hw_enabled = false;
+ return ret;
+}
+
+static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg)
+{
+ int i, ret;
+
+ /* Set default UTMI width */
+ hsotg->phyif = GUSBCFG_PHYIF16;
+
+ /*
+ * Attempt to find a generic PHY, then look for an old style
+ * USB PHY and then fall back to pdata
+ */
+ hsotg->phy = devm_phy_get(hsotg->dev, "usb2-phy");
+ if (IS_ERR(hsotg->phy)) {
+ ret = PTR_ERR(hsotg->phy);
+ switch (ret) {
+ case -ENODEV:
+ case -ENOSYS:
+ hsotg->phy = NULL;
+ break;
+ case -EPROBE_DEFER:
+ return ret;
+ default:
+ dev_err(hsotg->dev, "error getting phy %d\n", ret);
+ return ret;
+ }
+ }
+
+ if (!hsotg->phy) {
+ hsotg->uphy = devm_usb_get_phy(hsotg->dev, USB_PHY_TYPE_USB2);
+ if (IS_ERR(hsotg->uphy)) {
+ ret = PTR_ERR(hsotg->uphy);
+ switch (ret) {
+ case -ENODEV:
+ case -ENXIO:
+ hsotg->uphy = NULL;
+ break;
+ case -EPROBE_DEFER:
+ return ret;
+ default:
+ dev_err(hsotg->dev, "error getting usb phy %d\n",
+ ret);
+ return ret;
+ }
+ }
+ }
+
+ hsotg->plat = dev_get_platdata(hsotg->dev);
+
+ if (hsotg->phy) {
+ /*
+ * If using the generic PHY framework, check if the PHY bus
+ * width is 8-bit and set the phyif appropriately.
+ */
+ if (phy_get_bus_width(hsotg->phy) == 8)
+ hsotg->phyif = GUSBCFG_PHYIF8;
+ }
+
+ /* Clock */
+ hsotg->clk = devm_clk_get(hsotg->dev, "otg");
+ if (IS_ERR(hsotg->clk)) {
+ hsotg->clk = NULL;
+ dev_dbg(hsotg->dev, "cannot get otg clock\n");
+ }
+
+ /* Regulators */
+ for (i = 0; i < ARRAY_SIZE(hsotg->supplies); i++)
+ hsotg->supplies[i].supply = dwc2_hsotg_supply_names[i];
+
+ ret = devm_regulator_bulk_get(hsotg->dev, ARRAY_SIZE(hsotg->supplies),
+ hsotg->supplies);
+ if (ret) {
+ dev_err(hsotg->dev, "failed to request supplies: %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
/**
* dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
* DWC_otg driver
@@ -121,10 +294,14 @@ static int dwc2_driver_remove(struct platform_device *dev)
{
struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
+ dwc2_debugfs_exit(hsotg);
if (hsotg->hcd_enabled)
dwc2_hcd_remove(hsotg);
if (hsotg->gadget_enabled)
- s3c_hsotg_remove(hsotg);
+ dwc2_hsotg_remove(hsotg);
+
+ if (hsotg->ll_hw_enabled)
+ dwc2_lowlevel_hw_disable(hsotg);
return 0;
}
@@ -157,8 +334,6 @@ static int dwc2_driver_probe(struct platform_device *dev)
struct dwc2_core_params defparams;
struct dwc2_hsotg *hsotg;
struct resource *res;
- struct phy *phy;
- struct usb_phy *uphy;
int retval;
int irq;
@@ -192,6 +367,40 @@ static int dwc2_driver_probe(struct platform_device *dev)
if (retval)
return retval;
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ hsotg->regs = devm_ioremap_resource(&dev->dev, res);
+ if (IS_ERR(hsotg->regs))
+ return PTR_ERR(hsotg->regs);
+
+ dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
+ (unsigned long)res->start, hsotg->regs);
+
+ hsotg->dr_mode = usb_get_dr_mode(&dev->dev);
+ if (IS_ENABLED(CONFIG_USB_DWC2_HOST) &&
+ hsotg->dr_mode != USB_DR_MODE_HOST) {
+ hsotg->dr_mode = USB_DR_MODE_HOST;
+ dev_warn(hsotg->dev,
+ "Configuration mismatch. Forcing host mode\n");
+ } else if (IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) &&
+ hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
+ hsotg->dr_mode = USB_DR_MODE_PERIPHERAL;
+ dev_warn(hsotg->dev,
+ "Configuration mismatch. Forcing peripheral mode\n");
+ }
+
+ retval = dwc2_lowlevel_hw_init(hsotg);
+ if (retval)
+ return retval;
+
+ spin_lock_init(&hsotg->lock);
+
+ hsotg->core_params = devm_kzalloc(&dev->dev,
+ sizeof(*hsotg->core_params), GFP_KERNEL);
+ if (!hsotg->core_params)
+ return -ENOMEM;
+
+ dwc2_set_all_params(hsotg->core_params, -1);
+
irq = platform_get_irq(dev, 0);
if (irq < 0) {
dev_err(&dev->dev, "missing IRQ resource\n");
@@ -206,56 +415,47 @@ static int dwc2_driver_probe(struct platform_device *dev)
if (retval)
return retval;
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- hsotg->regs = devm_ioremap_resource(&dev->dev, res);
- if (IS_ERR(hsotg->regs))
- return PTR_ERR(hsotg->regs);
-
- dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
- (unsigned long)res->start, hsotg->regs);
-
- hsotg->dr_mode = of_usb_get_dr_mode(dev->dev.of_node);
+ retval = dwc2_lowlevel_hw_enable(hsotg);
+ if (retval)
+ return retval;
- /*
- * Attempt to find a generic PHY, then look for an old style
- * USB PHY
- */
- phy = devm_phy_get(&dev->dev, "usb2-phy");
- if (IS_ERR(phy)) {
- hsotg->phy = NULL;
- uphy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
- if (IS_ERR(uphy))
- hsotg->uphy = NULL;
- else
- hsotg->uphy = uphy;
- } else {
- hsotg->phy = phy;
- phy_power_on(hsotg->phy);
- phy_init(hsotg->phy);
- }
+ /* Detect config values from hardware */
+ retval = dwc2_get_hwparams(hsotg);
+ if (retval)
+ goto error;
- spin_lock_init(&hsotg->lock);
- mutex_init(&hsotg->init_mutex);
+ /* Validate parameter values */
+ dwc2_set_parameters(hsotg, params);
if (hsotg->dr_mode != USB_DR_MODE_HOST) {
retval = dwc2_gadget_init(hsotg, irq);
if (retval)
- return retval;
+ goto error;
hsotg->gadget_enabled = 1;
}
if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
- retval = dwc2_hcd_init(hsotg, irq, params);
+ retval = dwc2_hcd_init(hsotg, irq);
if (retval) {
if (hsotg->gadget_enabled)
- s3c_hsotg_remove(hsotg);
- return retval;
+ dwc2_hsotg_remove(hsotg);
+ goto error;
}
hsotg->hcd_enabled = 1;
}
platform_set_drvdata(dev, hsotg);
+ dwc2_debugfs_init(hsotg);
+
+ /* Gadget code manages lowlevel hw on its own */
+ if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL)
+ dwc2_lowlevel_hw_disable(hsotg);
+
+ return 0;
+
+error:
+ dwc2_lowlevel_hw_disable(hsotg);
return retval;
}
@@ -264,15 +464,12 @@ static int __maybe_unused dwc2_suspend(struct device *dev)
struct dwc2_hsotg *dwc2 = dev_get_drvdata(dev);
int ret = 0;
- if (dwc2_is_device_mode(dwc2)) {
- ret = s3c_hsotg_suspend(dwc2);
- } else {
- if (dwc2->lx_state == DWC2_L0)
- return 0;
- phy_exit(dwc2->phy);
- phy_power_off(dwc2->phy);
+ if (dwc2_is_device_mode(dwc2))
+ dwc2_hsotg_suspend(dwc2);
+
+ if (dwc2->ll_hw_enabled)
+ ret = __dwc2_lowlevel_hw_disable(dwc2);
- }
return ret;
}
@@ -281,13 +478,15 @@ static int __maybe_unused dwc2_resume(struct device *dev)
struct dwc2_hsotg *dwc2 = dev_get_drvdata(dev);
int ret = 0;
- if (dwc2_is_device_mode(dwc2)) {
- ret = s3c_hsotg_resume(dwc2);
- } else {
- phy_power_on(dwc2->phy);
- phy_init(dwc2->phy);
-
+ if (dwc2->ll_hw_enabled) {
+ ret = __dwc2_lowlevel_hw_enable(dwc2);
+ if (ret)
+ return ret;
}
+
+ if (dwc2_is_device_mode(dwc2))
+ ret = dwc2_hsotg_resume(dwc2);
+
return ret;
}
diff --git a/kernel/drivers/usb/dwc3/Kconfig b/kernel/drivers/usb/dwc3/Kconfig
index 827c4f803..5a42c4590 100644
--- a/kernel/drivers/usb/dwc3/Kconfig
+++ b/kernel/drivers/usb/dwc3/Kconfig
@@ -11,6 +11,13 @@ config USB_DWC3
if USB_DWC3
+config USB_DWC3_ULPI
+ bool "Register ULPI PHY Interface"
+ depends on USB_ULPI_BUS=y || USB_ULPI_BUS=USB_DWC3
+ help
+ Select this if you have ULPI type PHY attached to your DWC3
+ controller.
+
choice
bool "DWC3 Mode Selection"
default USB_DWC3_DUAL_ROLE if (USB && USB_GADGET)
@@ -97,11 +104,4 @@ config USB_DWC3_QCOM
Recent Qualcomm SoCs ship with one DesignWare Core USB3 IP inside,
say 'Y' or 'M' if you have one such device.
-comment "Debugging features"
-
-config USB_DWC3_DEBUG
- bool "Enable Debugging Messages"
- help
- Say Y here to enable debugging messages on DWC3 Driver.
-
endif
diff --git a/kernel/drivers/usb/dwc3/Makefile b/kernel/drivers/usb/dwc3/Makefile
index 46172f47f..acc951d46 100644
--- a/kernel/drivers/usb/dwc3/Makefile
+++ b/kernel/drivers/usb/dwc3/Makefile
@@ -1,8 +1,6 @@
# define_trace.h needs to know how to find our header
CFLAGS_trace.o := -I$(src)
-ccflags-$(CONFIG_USB_DWC3_DEBUG) := -DDEBUG
-
obj-$(CONFIG_USB_DWC3) += dwc3.o
dwc3-y := core.o debug.o trace.o
@@ -15,6 +13,10 @@ ifneq ($(filter y,$(CONFIG_USB_DWC3_GADGET) $(CONFIG_USB_DWC3_DUAL_ROLE)),)
dwc3-y += gadget.o ep0.o
endif
+ifneq ($(CONFIG_USB_DWC3_ULPI),)
+ dwc3-y += ulpi.o
+endif
+
ifneq ($(CONFIG_DEBUG_FS),)
dwc3-y += debugfs.o
endif
diff --git a/kernel/drivers/usb/dwc3/core.c b/kernel/drivers/usb/dwc3/core.c
index 2bbab3d86..22b479738 100644
--- a/kernel/drivers/usb/dwc3/core.c
+++ b/kernel/drivers/usb/dwc3/core.c
@@ -34,6 +34,7 @@
#include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/acpi.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
@@ -117,6 +118,59 @@ static int dwc3_core_soft_reset(struct dwc3 *dwc)
}
/**
+ * dwc3_soft_reset - Issue soft reset
+ * @dwc: Pointer to our controller context structure
+ */
+static int dwc3_soft_reset(struct dwc3 *dwc)
+{
+ unsigned long timeout;
+ u32 reg;
+
+ timeout = jiffies + msecs_to_jiffies(500);
+ dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_CSFTRST);
+ do {
+ reg = dwc3_readl(dwc->regs, DWC3_DCTL);
+ if (!(reg & DWC3_DCTL_CSFTRST))
+ break;
+
+ if (time_after(jiffies, timeout)) {
+ dev_err(dwc->dev, "Reset Timed Out\n");
+ return -ETIMEDOUT;
+ }
+
+ cpu_relax();
+ } while (true);
+
+ return 0;
+}
+
+/*
+ * dwc3_frame_length_adjustment - Adjusts frame length if required
+ * @dwc3: Pointer to our controller context structure
+ * @fladj: Value of GFLADJ_30MHZ to adjust frame length
+ */
+static void dwc3_frame_length_adjustment(struct dwc3 *dwc, u32 fladj)
+{
+ u32 reg;
+ u32 dft;
+
+ if (dwc->revision < DWC3_REVISION_250A)
+ return;
+
+ if (fladj == 0)
+ return;
+
+ reg = dwc3_readl(dwc->regs, DWC3_GFLADJ);
+ dft = reg & DWC3_GFLADJ_30MHZ_MASK;
+ if (!dev_WARN_ONCE(dwc->dev, dft == fladj,
+ "request value same as default, ignoring\n")) {
+ reg &= ~DWC3_GFLADJ_30MHZ_MASK;
+ reg |= DWC3_GFLADJ_30MHZ_SDBND_SEL | fladj;
+ dwc3_writel(dwc->regs, DWC3_GFLADJ, reg);
+ }
+}
+
+/**
* dwc3_free_one_event_buffer - Frees one event buffer
* @dwc: Pointer to our controller context structure
* @evt: Pointer to event buffer to be freed
@@ -367,10 +421,15 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc)
/**
* dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core
* @dwc: Pointer to our controller context structure
+ *
+ * Returns 0 on success. The USB PHY interfaces are configured but not
+ * initialized. The PHY interfaces and the PHYs get initialized together with
+ * the core in dwc3_core_init.
*/
-static void dwc3_phy_setup(struct dwc3 *dwc)
+static int dwc3_phy_setup(struct dwc3 *dwc)
{
u32 reg;
+ int ret;
reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0));
@@ -409,10 +468,41 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg);
- mdelay(100);
-
reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ /* Select the HS PHY interface */
+ switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) {
+ case DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI:
+ if (dwc->hsphy_interface &&
+ !strncmp(dwc->hsphy_interface, "utmi", 4)) {
+ reg &= ~DWC3_GUSB2PHYCFG_ULPI_UTMI;
+ break;
+ } else if (dwc->hsphy_interface &&
+ !strncmp(dwc->hsphy_interface, "ulpi", 4)) {
+ reg |= DWC3_GUSB2PHYCFG_ULPI_UTMI;
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+ } else {
+ /* Relying on default value. */
+ if (!(reg & DWC3_GUSB2PHYCFG_ULPI_UTMI))
+ break;
+ }
+ /* FALLTHROUGH */
+ case DWC3_GHWPARAMS3_HSPHY_IFC_ULPI:
+ /* Making sure the interface and PHY are operational */
+ ret = dwc3_soft_reset(dwc);
+ if (ret)
+ return ret;
+
+ udelay(1);
+
+ ret = dwc3_ulpi_init(dwc);
+ if (ret)
+ return ret;
+ /* FALLTHROUGH */
+ default:
+ break;
+ }
+
/*
* Above 1.94a, it is recommended to set DWC3_GUSB2PHYCFG_SUSPHY to
* '0' during coreConsultant configuration. So default value will
@@ -425,9 +515,12 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->dis_u2_susphy_quirk)
reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+ if (dwc->dis_enblslpm_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
- mdelay(100);
+ return 0;
}
/**
@@ -438,19 +531,24 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
*/
static int dwc3_core_init(struct dwc3 *dwc)
{
- unsigned long timeout;
u32 hwparams4 = dwc->hwparams.hwparams4;
u32 reg;
int ret;
reg = dwc3_readl(dwc->regs, DWC3_GSNPSID);
/* This should read as U3 followed by revision number */
- if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) {
+ if ((reg & DWC3_GSNPSID_MASK) == 0x55330000) {
+ /* Detected DWC_usb3 IP */
+ dwc->revision = reg;
+ } else if ((reg & DWC3_GSNPSID_MASK) == 0x33310000) {
+ /* Detected DWC_usb31 IP */
+ dwc->revision = dwc3_readl(dwc->regs, DWC3_VER_NUMBER);
+ dwc->revision |= DWC3_REVISION_IS_DWC31;
+ } else {
dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
ret = -ENODEV;
goto err0;
}
- dwc->revision = reg;
/*
* Write Linux Version Code to our GUID register so it's easy to figure
@@ -466,21 +564,9 @@ static int dwc3_core_init(struct dwc3 *dwc)
}
/* issue device SoftReset too */
- timeout = jiffies + msecs_to_jiffies(500);
- dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_CSFTRST);
- do {
- reg = dwc3_readl(dwc->regs, DWC3_DCTL);
- if (!(reg & DWC3_DCTL_CSFTRST))
- break;
-
- if (time_after(jiffies, timeout)) {
- dev_err(dwc->dev, "Reset Timed Out\n");
- ret = -ETIMEDOUT;
- goto err0;
- }
-
- cpu_relax();
- } while (true);
+ ret = dwc3_soft_reset(dwc);
+ if (ret)
+ goto err0;
ret = dwc3_core_soft_reset(dwc);
if (ret)
@@ -555,8 +641,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
- dwc3_phy_setup(dwc);
-
ret = dwc3_alloc_scratch_buffers(dwc);
if (ret)
goto err1;
@@ -725,12 +809,12 @@ static int dwc3_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct dwc3_platform_data *pdata = dev_get_platdata(dev);
- struct device_node *node = dev->of_node;
struct resource *res;
struct dwc3 *dwc;
u8 lpm_nyet_threshold;
u8 tx_de_emphasis;
u8 hird_threshold;
+ u32 fladj = 0;
int ret;
@@ -794,49 +878,56 @@ static int dwc3_probe(struct platform_device *pdev)
*/
hird_threshold = 12;
- if (node) {
- dwc->maximum_speed = of_usb_get_maximum_speed(node);
- dwc->has_lpm_erratum = of_property_read_bool(node,
+ dwc->maximum_speed = usb_get_maximum_speed(dev);
+ dwc->dr_mode = usb_get_dr_mode(dev);
+
+ dwc->has_lpm_erratum = device_property_read_bool(dev,
"snps,has-lpm-erratum");
- of_property_read_u8(node, "snps,lpm-nyet-threshold",
+ device_property_read_u8(dev, "snps,lpm-nyet-threshold",
&lpm_nyet_threshold);
- dwc->is_utmi_l1_suspend = of_property_read_bool(node,
+ dwc->is_utmi_l1_suspend = device_property_read_bool(dev,
"snps,is-utmi-l1-suspend");
- of_property_read_u8(node, "snps,hird-threshold",
+ device_property_read_u8(dev, "snps,hird-threshold",
&hird_threshold);
- dwc->usb3_lpm_capable = of_property_read_bool(node,
+ dwc->usb3_lpm_capable = device_property_read_bool(dev,
"snps,usb3_lpm_capable");
- dwc->needs_fifo_resize = of_property_read_bool(node,
+ dwc->needs_fifo_resize = device_property_read_bool(dev,
"tx-fifo-resize");
- dwc->dr_mode = of_usb_get_dr_mode(node);
- dwc->disable_scramble_quirk = of_property_read_bool(node,
+ dwc->disable_scramble_quirk = device_property_read_bool(dev,
"snps,disable_scramble_quirk");
- dwc->u2exit_lfps_quirk = of_property_read_bool(node,
+ dwc->u2exit_lfps_quirk = device_property_read_bool(dev,
"snps,u2exit_lfps_quirk");
- dwc->u2ss_inp3_quirk = of_property_read_bool(node,
+ dwc->u2ss_inp3_quirk = device_property_read_bool(dev,
"snps,u2ss_inp3_quirk");
- dwc->req_p1p2p3_quirk = of_property_read_bool(node,
+ dwc->req_p1p2p3_quirk = device_property_read_bool(dev,
"snps,req_p1p2p3_quirk");
- dwc->del_p1p2p3_quirk = of_property_read_bool(node,
+ dwc->del_p1p2p3_quirk = device_property_read_bool(dev,
"snps,del_p1p2p3_quirk");
- dwc->del_phy_power_chg_quirk = of_property_read_bool(node,
+ dwc->del_phy_power_chg_quirk = device_property_read_bool(dev,
"snps,del_phy_power_chg_quirk");
- dwc->lfps_filter_quirk = of_property_read_bool(node,
+ dwc->lfps_filter_quirk = device_property_read_bool(dev,
"snps,lfps_filter_quirk");
- dwc->rx_detect_poll_quirk = of_property_read_bool(node,
+ dwc->rx_detect_poll_quirk = device_property_read_bool(dev,
"snps,rx_detect_poll_quirk");
- dwc->dis_u3_susphy_quirk = of_property_read_bool(node,
+ dwc->dis_u3_susphy_quirk = device_property_read_bool(dev,
"snps,dis_u3_susphy_quirk");
- dwc->dis_u2_susphy_quirk = of_property_read_bool(node,
+ dwc->dis_u2_susphy_quirk = device_property_read_bool(dev,
"snps,dis_u2_susphy_quirk");
+ dwc->dis_enblslpm_quirk = device_property_read_bool(dev,
+ "snps,dis_enblslpm_quirk");
- dwc->tx_de_emphasis_quirk = of_property_read_bool(node,
+ dwc->tx_de_emphasis_quirk = device_property_read_bool(dev,
"snps,tx_de_emphasis_quirk");
- of_property_read_u8(node, "snps,tx_de_emphasis",
+ device_property_read_u8(dev, "snps,tx_de_emphasis",
&tx_de_emphasis);
- } else if (pdata) {
+ device_property_read_string(dev, "snps,hsphy_interface",
+ &dwc->hsphy_interface);
+ device_property_read_u32(dev, "snps,quirk-frame-length-adjustment",
+ &fladj);
+
+ if (pdata) {
dwc->maximum_speed = pdata->maximum_speed;
dwc->has_lpm_erratum = pdata->has_lpm_erratum;
if (pdata->lpm_nyet_threshold)
@@ -859,10 +950,14 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->rx_detect_poll_quirk = pdata->rx_detect_poll_quirk;
dwc->dis_u3_susphy_quirk = pdata->dis_u3_susphy_quirk;
dwc->dis_u2_susphy_quirk = pdata->dis_u2_susphy_quirk;
+ dwc->dis_enblslpm_quirk = pdata->dis_enblslpm_quirk;
dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk;
if (pdata->tx_de_emphasis)
tx_de_emphasis = pdata->tx_de_emphasis;
+
+ dwc->hsphy_interface = pdata->hsphy_interface;
+ fladj = pdata->fladj_value;
}
/* default to superspeed if no maximum_speed passed */
@@ -875,12 +970,18 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->hird_threshold = hird_threshold
| (dwc->is_utmi_l1_suspend << 4);
+ platform_set_drvdata(pdev, dwc);
+ dwc3_cache_hwparams(dwc);
+
+ ret = dwc3_phy_setup(dwc);
+ if (ret)
+ goto err0;
+
ret = dwc3_core_get_phy(dwc);
if (ret)
goto err0;
spin_lock_init(&dwc->lock);
- platform_set_drvdata(pdev, dwc);
if (!dev->dma_mask) {
dev->dma_mask = dev->parent->dma_mask;
@@ -892,8 +993,6 @@ static int dwc3_probe(struct platform_device *pdev)
pm_runtime_get_sync(dev);
pm_runtime_forbid(dev);
- dwc3_cache_hwparams(dwc);
-
ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
if (ret) {
dev_err(dwc->dev, "failed to allocate event buffers\n");
@@ -915,6 +1014,9 @@ static int dwc3_probe(struct platform_device *pdev)
goto err1;
}
+ /* Adjust Frame Length */
+ dwc3_frame_length_adjustment(dwc, fladj);
+
usb_phy_set_suspend(dwc->usb2_phy, 0);
usb_phy_set_suspend(dwc->usb3_phy, 0);
ret = phy_power_on(dwc->usb2_generic_phy);
@@ -964,6 +1066,7 @@ err2:
err1:
dwc3_free_event_buffers(dwc);
+ dwc3_ulpi_exit(dwc);
err0:
/*
@@ -999,6 +1102,7 @@ static int dwc3_remove(struct platform_device *pdev)
phy_power_off(dwc->usb3_generic_phy);
dwc3_core_exit(dwc);
+ dwc3_ulpi_exit(dwc);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
@@ -1033,6 +1137,8 @@ static int dwc3_suspend(struct device *dev)
phy_exit(dwc->usb2_generic_phy);
phy_exit(dwc->usb3_generic_phy);
+ pinctrl_pm_select_sleep_state(dev);
+
return 0;
}
@@ -1042,6 +1148,8 @@ static int dwc3_resume(struct device *dev)
unsigned long flags;
int ret;
+ pinctrl_pm_select_default_state(dev);
+
usb_phy_init(dwc->usb3_phy);
usb_phy_init(dwc->usb2_phy);
ret = phy_init(dwc->usb2_generic_phy);
diff --git a/kernel/drivers/usb/dwc3/core.h b/kernel/drivers/usb/dwc3/core.h
index c0eafa6fd..78be201d8 100644
--- a/kernel/drivers/usb/dwc3/core.h
+++ b/kernel/drivers/usb/dwc3/core.h
@@ -30,6 +30,7 @@
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
+#include <linux/ulpi/interface.h>
#include <linux/phy/phy.h>
@@ -107,6 +108,9 @@
#define DWC3_GPRTBIMAP_FS0 0xc188
#define DWC3_GPRTBIMAP_FS1 0xc18c
+#define DWC3_VER_NUMBER 0xc1a0
+#define DWC3_VER_TYPE 0xc1a4
+
#define DWC3_GUSB2PHYCFG(n) (0xc200 + (n * 0x04))
#define DWC3_GUSB2I2CCTL(n) (0xc240 + (n * 0x04))
@@ -123,6 +127,7 @@
#define DWC3_GEVNTCOUNT(n) (0xc40c + (n * 0x10))
#define DWC3_GHWPARAMS8 0xc600
+#define DWC3_GFLADJ 0xc630
/* Device Registers */
#define DWC3_DCFG 0xc700
@@ -173,6 +178,16 @@
/* Global USB2 PHY Configuration Register */
#define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31)
#define DWC3_GUSB2PHYCFG_SUSPHY (1 << 6)
+#define DWC3_GUSB2PHYCFG_ULPI_UTMI (1 << 4)
+#define DWC3_GUSB2PHYCFG_ENBLSLPM (1 << 8)
+
+/* Global USB2 PHY Vendor Control Register */
+#define DWC3_GUSB2PHYACC_NEWREGREQ (1 << 25)
+#define DWC3_GUSB2PHYACC_BUSY (1 << 23)
+#define DWC3_GUSB2PHYACC_WRITE (1 << 22)
+#define DWC3_GUSB2PHYACC_ADDR(n) (n << 16)
+#define DWC3_GUSB2PHYACC_EXTEND_ADDR(n) (n << 8)
+#define DWC3_GUSB2PHYACC_DATA(n) (n & 0xff)
/* Global USB3 PIPE Control Register */
#define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31)
@@ -224,6 +239,10 @@
/* Global HWPARAMS6 Register */
#define DWC3_GHWPARAMS6_EN_FPGA (1 << 7)
+/* Global Frame Length Adjustment Register */
+#define DWC3_GFLADJ_30MHZ_SDBND_SEL (1 << 7)
+#define DWC3_GFLADJ_30MHZ_MASK 0x3f
+
/* Device Configuration Register */
#define DWC3_DCFG_DEVADDR(addr) ((addr) << 3)
#define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0x7f)
@@ -652,6 +671,7 @@ struct dwc3_scratchpad_array {
* @usb3_phy: pointer to USB3 PHY
* @usb2_generic_phy: pointer to USB2 PHY
* @usb3_generic_phy: pointer to USB3 PHY
+ * @ulpi: pointer to ulpi interface
* @dcfg: saved contents of DCFG register
* @gctl: saved contents of GCTL register
* @isoch_delay: wValue from Set Isochronous Delay request;
@@ -673,6 +693,7 @@ struct dwc3_scratchpad_array {
* @test_mode_nr: test feature selector
* @lpm_nyet_threshold: LPM NYET response threshold
* @hird_threshold: HIRD threshold
+ * @hsphy_interface: "utmi" or "ulpi"
* @delayed_status: true when gadget driver asks for delayed status
* @ep0_bounced: true when we used bounce buffer
* @ep0_expect_in: true when we expect a DATA IN transfer
@@ -700,6 +721,8 @@ struct dwc3_scratchpad_array {
* @rx_detect_poll_quirk: set if we enable rx_detect to polling lfps quirk
* @dis_u3_susphy_quirk: set if we disable usb3 suspend phy
* @dis_u2_susphy_quirk: set if we disable usb2 suspend phy
+ * @dis_enblslpm_quirk: set if we clear enblslpm in GUSB2PHYCFG,
+ * disabling the suspend signal to the PHY.
* @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk
* @tx_de_emphasis: Tx de-emphasis value
* 0 - -6dB de-emphasis
@@ -739,6 +762,8 @@ struct dwc3 {
struct phy *usb2_generic_phy;
struct phy *usb3_generic_phy;
+ struct ulpi *ulpi;
+
void __iomem *regs;
size_t regs_size;
@@ -752,6 +777,14 @@ struct dwc3 {
u32 num_event_buffers;
u32 u1u2;
u32 maximum_speed;
+
+ /*
+ * All 3.1 IP version constants are greater than the 3.0 IP
+ * version constants. This works for most version checks in
+ * dwc3. However, in the future, this may not apply as
+ * features may be developed on newer versions of the 3.0 IP
+ * that are not in the 3.1 IP.
+ */
u32 revision;
#define DWC3_REVISION_173A 0x5533173a
@@ -774,6 +807,13 @@ struct dwc3 {
#define DWC3_REVISION_270A 0x5533270a
#define DWC3_REVISION_280A 0x5533280a
+/*
+ * NOTICE: we're using bit 31 as a "is usb 3.1" flag. This is really
+ * just so dwc31 revisions are always larger than dwc3.
+ */
+#define DWC3_REVISION_IS_DWC31 0x80000000
+#define DWC3_USB31_REVISION_110A (0x3131302a | DWC3_REVISION_IS_USB31)
+
enum dwc3_ep0_next ep0_next_event;
enum dwc3_ep0_state ep0state;
enum dwc3_link_state link_state;
@@ -800,6 +840,8 @@ struct dwc3 {
u8 lpm_nyet_threshold;
u8 hird_threshold;
+ const char *hsphy_interface;
+
unsigned delayed_status:1;
unsigned ep0_bounced:1;
unsigned ep0_expect_in:1;
@@ -811,7 +853,6 @@ struct dwc3 {
unsigned pullups_connected:1;
unsigned resize_fifos:1;
unsigned setup_packet_pending:1;
- unsigned start_config_issued:1;
unsigned three_stage_setup:1;
unsigned usb3_lpm_capable:1;
@@ -825,6 +866,7 @@ struct dwc3 {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned dis_enblslpm_quirk:1;
unsigned tx_de_emphasis_quirk:1;
unsigned tx_de_emphasis:2;
@@ -1035,4 +1077,14 @@ static inline int dwc3_gadget_resume(struct dwc3 *dwc)
}
#endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */
+#if IS_ENABLED(CONFIG_USB_DWC3_ULPI)
+int dwc3_ulpi_init(struct dwc3 *dwc);
+void dwc3_ulpi_exit(struct dwc3 *dwc);
+#else
+static inline int dwc3_ulpi_init(struct dwc3 *dwc)
+{ return 0; }
+static inline void dwc3_ulpi_exit(struct dwc3 *dwc)
+{ }
+#endif
+
#endif /* __DRIVERS_USB_DWC3_CORE_H */
diff --git a/kernel/drivers/usb/dwc3/dwc3-exynos.c b/kernel/drivers/usb/dwc3/dwc3-exynos.c
index 7bd0a95b2..dd5cb5577 100644
--- a/kernel/drivers/usb/dwc3/dwc3-exynos.c
+++ b/kernel/drivers/usb/dwc3/dwc3-exynos.c
@@ -145,7 +145,7 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
exynos->susp_clk = devm_clk_get(dev, "usbdrd30_susp_clk");
if (IS_ERR(exynos->susp_clk)) {
- dev_dbg(dev, "no suspend clk specified\n");
+ dev_info(dev, "no suspend clk specified\n");
exynos->susp_clk = NULL;
}
clk_prepare_enable(exynos->susp_clk);
diff --git a/kernel/drivers/usb/dwc3/dwc3-keystone.c b/kernel/drivers/usb/dwc3/dwc3-keystone.c
index fe3b9335a..2be268d24 100644
--- a/kernel/drivers/usb/dwc3/dwc3-keystone.c
+++ b/kernel/drivers/usb/dwc3/dwc3-keystone.c
@@ -115,7 +115,7 @@ static int kdwc3_probe(struct platform_device *pdev)
error = clk_prepare_enable(kdwc->clk);
if (error < 0) {
- dev_dbg(kdwc->dev, "unable to enable usb clock, err %d\n",
+ dev_err(kdwc->dev, "unable to enable usb clock, error %d\n",
error);
return error;
}
diff --git a/kernel/drivers/usb/dwc3/dwc3-omap.c b/kernel/drivers/usb/dwc3/dwc3-omap.c
index 6b486a368..22e9606d8 100644
--- a/kernel/drivers/usb/dwc3/dwc3-omap.c
+++ b/kernel/drivers/usb/dwc3/dwc3-omap.c
@@ -128,8 +128,7 @@ struct dwc3_omap {
u32 dma_status:1;
- struct extcon_specific_cable_nb extcon_vbus_dev;
- struct extcon_specific_cable_nb extcon_id_dev;
+ struct extcon_dev *edev;
struct notifier_block vbus_nb;
struct notifier_block id_nb;
@@ -225,12 +224,10 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
switch (status) {
case OMAP_DWC3_ID_GROUND:
- dev_dbg(omap->dev, "ID GND\n");
-
if (omap->vbus_reg) {
ret = regulator_enable(omap->vbus_reg);
if (ret) {
- dev_dbg(omap->dev, "regulator enable failed\n");
+ dev_err(omap->dev, "regulator enable failed\n");
return;
}
}
@@ -245,8 +242,6 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
break;
case OMAP_DWC3_VBUS_VALID:
- dev_dbg(omap->dev, "VBUS Connect\n");
-
val = dwc3_omap_read_utmi_ctrl(omap);
val &= ~USBOTGSS_UTMI_OTG_CTRL_SESSEND;
val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG
@@ -261,8 +256,6 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
regulator_disable(omap->vbus_reg);
case OMAP_DWC3_VBUS_OFF:
- dev_dbg(omap->dev, "VBUS Disconnect\n");
-
val = dwc3_omap_read_utmi_ctrl(omap);
val &= ~(USBOTGSS_UTMI_OTG_CTRL_SESSVALID
| USBOTGSS_UTMI_OTG_CTRL_VBUSVALID
@@ -273,7 +266,7 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
break;
default:
- dev_dbg(omap->dev, "invalid state\n");
+ dev_WARN(omap->dev, "invalid state\n");
}
}
@@ -284,37 +277,8 @@ static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
reg = dwc3_omap_read_irqmisc_status(omap);
- if (reg & USBOTGSS_IRQMISC_DMADISABLECLR) {
- dev_dbg(omap->dev, "DMA Disable was Cleared\n");
+ if (reg & USBOTGSS_IRQMISC_DMADISABLECLR)
omap->dma_status = false;
- }
-
- if (reg & USBOTGSS_IRQMISC_OEVT)
- dev_dbg(omap->dev, "OTG Event\n");
-
- if (reg & USBOTGSS_IRQMISC_DRVVBUS_RISE)
- dev_dbg(omap->dev, "DRVVBUS Rise\n");
-
- if (reg & USBOTGSS_IRQMISC_CHRGVBUS_RISE)
- dev_dbg(omap->dev, "CHRGVBUS Rise\n");
-
- if (reg & USBOTGSS_IRQMISC_DISCHRGVBUS_RISE)
- dev_dbg(omap->dev, "DISCHRGVBUS Rise\n");
-
- if (reg & USBOTGSS_IRQMISC_IDPULLUP_RISE)
- dev_dbg(omap->dev, "IDPULLUP Rise\n");
-
- if (reg & USBOTGSS_IRQMISC_DRVVBUS_FALL)
- dev_dbg(omap->dev, "DRVVBUS Fall\n");
-
- if (reg & USBOTGSS_IRQMISC_CHRGVBUS_FALL)
- dev_dbg(omap->dev, "CHRGVBUS Fall\n");
-
- if (reg & USBOTGSS_IRQMISC_DISCHRGVBUS_FALL)
- dev_dbg(omap->dev, "DISCHRGVBUS Fall\n");
-
- if (reg & USBOTGSS_IRQMISC_IDPULLUP_FALL)
- dev_dbg(omap->dev, "IDPULLUP Fall\n");
dwc3_omap_write_irqmisc_status(omap, reg);
@@ -434,7 +398,7 @@ static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
reg &= ~USBOTGSS_UTMI_OTG_CTRL_SW_MODE;
break;
default:
- dev_dbg(omap->dev, "UNKNOWN utmi mode %d\n", utmi_mode);
+ dev_WARN(omap->dev, "UNKNOWN utmi mode %d\n", utmi_mode);
}
dwc3_omap_write_utmi_ctrl(omap, reg);
@@ -454,23 +418,23 @@ static int dwc3_omap_extcon_register(struct dwc3_omap *omap)
}
omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
- ret = extcon_register_interest(&omap->extcon_vbus_dev,
- edev->name, "USB",
- &omap->vbus_nb);
+ ret = extcon_register_notifier(edev, EXTCON_USB,
+ &omap->vbus_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB\n");
omap->id_nb.notifier_call = dwc3_omap_id_notifier;
- ret = extcon_register_interest(&omap->extcon_id_dev,
- edev->name, "USB-HOST",
- &omap->id_nb);
+ ret = extcon_register_notifier(edev, EXTCON_USB_HOST,
+ &omap->id_nb);
if (ret < 0)
dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");
- if (extcon_get_cable_state(edev, "USB") == true)
+ if (extcon_get_cable_state_(edev, EXTCON_USB) == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
- if (extcon_get_cable_state(edev, "USB-HOST") == true)
+ if (extcon_get_cable_state_(edev, EXTCON_USB_HOST) == true)
dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
+
+ omap->edev = edev;
}
return 0;
@@ -550,8 +514,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
goto err1;
}
- dwc3_omap_enable_irqs(omap);
-
ret = dwc3_omap_extcon_register(omap);
if (ret < 0)
goto err2;
@@ -562,14 +524,13 @@ static int dwc3_omap_probe(struct platform_device *pdev)
goto err3;
}
+ dwc3_omap_enable_irqs(omap);
+
return 0;
err3:
- if (omap->extcon_vbus_dev.edev)
- extcon_unregister_interest(&omap->extcon_vbus_dev);
- if (omap->extcon_id_dev.edev)
- extcon_unregister_interest(&omap->extcon_id_dev);
-
+ extcon_unregister_notifier(omap->edev, EXTCON_USB, &omap->vbus_nb);
+ extcon_unregister_notifier(omap->edev, EXTCON_USB_HOST, &omap->id_nb);
err2:
dwc3_omap_disable_irqs(omap);
@@ -586,10 +547,8 @@ static int dwc3_omap_remove(struct platform_device *pdev)
{
struct dwc3_omap *omap = platform_get_drvdata(pdev);
- if (omap->extcon_vbus_dev.edev)
- extcon_unregister_interest(&omap->extcon_vbus_dev);
- if (omap->extcon_id_dev.edev)
- extcon_unregister_interest(&omap->extcon_id_dev);
+ extcon_unregister_notifier(omap->edev, EXTCON_USB, &omap->vbus_nb);
+ extcon_unregister_notifier(omap->edev, EXTCON_USB_HOST, &omap->id_nb);
dwc3_omap_disable_irqs(omap);
of_platform_depopulate(omap->dev);
pm_runtime_put_sync(&pdev->dev);
diff --git a/kernel/drivers/usb/dwc3/dwc3-pci.c b/kernel/drivers/usb/dwc3/dwc3-pci.c
index b773fb53d..009d83048 100644
--- a/kernel/drivers/usb/dwc3/dwc3-pci.c
+++ b/kernel/drivers/usb/dwc3/dwc3-pci.c
@@ -21,15 +21,30 @@
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/acpi.h>
#include "platform_data.h"
-#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
-#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
-#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
-#define PCI_DEVICE_ID_INTEL_BSW 0x22B7
-#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
-#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
+#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
+#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
+#define PCI_DEVICE_ID_INTEL_BSW 0x22b7
+#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
+#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
+#define PCI_DEVICE_ID_INTEL_BXT 0x0aaa
+#define PCI_DEVICE_ID_INTEL_APL 0x5aaa
+
+static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
+static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
+
+static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
+ { "reset-gpios", &reset_gpios, 1 },
+ { "cs-gpios", &cs_gpios, 1 },
+ { },
+};
static int dwc3_pci_quirks(struct pci_dev *pdev)
{
@@ -65,6 +80,52 @@ static int dwc3_pci_quirks(struct pci_dev *pdev)
sizeof(pdata));
}
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+ pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
+ struct gpio_desc *gpio;
+
+ acpi_dev_add_driver_gpios(ACPI_COMPANION(&pdev->dev),
+ acpi_dwc3_byt_gpios);
+
+ /*
+ * These GPIOs will turn on the USB2 PHY. Note that we have to
+ * put the gpio descriptors again here because the phy driver
+ * might want to grab them, too.
+ */
+ gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ gpiod_set_value_cansleep(gpio, 1);
+ gpiod_put(gpio);
+
+ gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ if (gpio) {
+ gpiod_set_value_cansleep(gpio, 1);
+ gpiod_put(gpio);
+ usleep_range(10000, 11000);
+ }
+ }
+
+ if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
+ (pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 ||
+ pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI ||
+ pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
+
+ struct dwc3_platform_data pdata;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.usb3_lpm_capable = true;
+ pdata.has_lpm_erratum = true;
+ pdata.dis_enblslpm_quirk = true;
+
+ return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
+ sizeof(pdata));
+ }
+
return 0;
}
@@ -113,6 +174,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
goto err;
dwc3->dev.parent = dev;
+ ACPI_COMPANION_SET(&dwc3->dev, ACPI_COMPANION(dev));
ret = platform_device_add(dwc3);
if (ret) {
@@ -128,6 +190,7 @@ err:
static void dwc3_pci_remove(struct pci_dev *pci)
{
+ acpi_dev_remove_driver_gpios(ACPI_COMPANION(&pci->dev));
platform_device_unregister(pci_get_drvdata(pci));
}
@@ -136,11 +199,21 @@ static const struct pci_device_id dwc3_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
},
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
+ PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI),
+ },
+ {
+ PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
+ PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31),
+ },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
{ } /* Terminating Entry */
};
diff --git a/kernel/drivers/usb/dwc3/dwc3-qcom.c b/kernel/drivers/usb/dwc3/dwc3-qcom.c
index 8c2e8eec8..088026048 100644
--- a/kernel/drivers/usb/dwc3/dwc3-qcom.c
+++ b/kernel/drivers/usb/dwc3/dwc3-qcom.c
@@ -48,13 +48,13 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
qdwc->iface_clk = devm_clk_get(qdwc->dev, "iface");
if (IS_ERR(qdwc->iface_clk)) {
- dev_dbg(qdwc->dev, "failed to get optional iface clock\n");
+ dev_info(qdwc->dev, "failed to get optional iface clock\n");
qdwc->iface_clk = NULL;
}
qdwc->sleep_clk = devm_clk_get(qdwc->dev, "sleep");
if (IS_ERR(qdwc->sleep_clk)) {
- dev_dbg(qdwc->dev, "failed to get optional sleep clock\n");
+ dev_info(qdwc->dev, "failed to get optional sleep clock\n");
qdwc->sleep_clk = NULL;
}
diff --git a/kernel/drivers/usb/dwc3/dwc3-st.c b/kernel/drivers/usb/dwc3/dwc3-st.c
index 4a1a543de..5c0adb9c6 100644
--- a/kernel/drivers/usb/dwc3/dwc3-st.c
+++ b/kernel/drivers/usb/dwc3/dwc3-st.c
@@ -135,8 +135,6 @@ static int st_dwc3_drd_init(struct st_dwc3 *dwc3_data)
| USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2);
val |= USB3_DEVICE_NOT_HOST;
-
- dev_dbg(dwc3_data->dev, "Configuring as Device\n");
break;
case USB_DR_MODE_HOST:
@@ -154,8 +152,6 @@ static int st_dwc3_drd_init(struct st_dwc3 *dwc3_data)
*/
val |= USB3_DELAY_VBUSVALID;
-
- dev_dbg(dwc3_data->dev, "Configuring as Host\n");
break;
default:
@@ -199,6 +195,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
struct resource *res;
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node, *child;
+ struct platform_device *child_pdev;
struct regmap *regmap;
int ret;
@@ -257,8 +254,6 @@ static int st_dwc3_probe(struct platform_device *pdev)
goto undo_softreset;
}
- dwc3_data->dr_mode = of_usb_get_dr_mode(child);
-
/* Allocate and initialize the core */
ret = of_platform_populate(node, NULL, NULL, dev);
if (ret) {
@@ -266,6 +261,15 @@ static int st_dwc3_probe(struct platform_device *pdev)
goto undo_softreset;
}
+ child_pdev = of_find_device_by_node(child);
+ if (!child_pdev) {
+ dev_err(dev, "failed to find dwc3 core device\n");
+ ret = -ENODEV;
+ goto undo_softreset;
+ }
+
+ dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev);
+
/*
* Configure the USB port as device or host according to the static
* configuration passed from DT.
diff --git a/kernel/drivers/usb/dwc3/ep0.c b/kernel/drivers/usb/dwc3/ep0.c
index 06ecd1e68..b13912d5f 100644
--- a/kernel/drivers/usb/dwc3/ep0.c
+++ b/kernel/drivers/usb/dwc3/ep0.c
@@ -56,7 +56,7 @@ static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
}
static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
- u32 len, u32 type)
+ u32 len, u32 type, bool chain)
{
struct dwc3_gadget_ep_cmd_params params;
struct dwc3_trb *trb;
@@ -70,7 +70,10 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
return 0;
}
- trb = dwc->ep0_trb;
+ trb = &dwc->ep0_trb[dep->free_slot];
+
+ if (chain)
+ dep->free_slot++;
trb->bpl = lower_32_bits(buf_dma);
trb->bph = upper_32_bits(buf_dma);
@@ -78,10 +81,17 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
trb->ctrl = type;
trb->ctrl |= (DWC3_TRB_CTRL_HWO
- | DWC3_TRB_CTRL_LST
- | DWC3_TRB_CTRL_IOC
| DWC3_TRB_CTRL_ISP_IMI);
+ if (chain)
+ trb->ctrl |= DWC3_TRB_CTRL_CHN;
+ else
+ trb->ctrl |= (DWC3_TRB_CTRL_IOC
+ | DWC3_TRB_CTRL_LST);
+
+ if (chain)
+ return 0;
+
memset(&params, 0, sizeof(params));
params.param0 = upper_32_bits(dwc->ep0_trb_addr);
params.param1 = lower_32_bits(dwc->ep0_trb_addr);
@@ -302,7 +312,7 @@ void dwc3_ep0_out_start(struct dwc3 *dwc)
int ret;
ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
- DWC3_TRBCTL_CONTROL_SETUP);
+ DWC3_TRBCTL_CONTROL_SETUP, false);
WARN_ON(ret < 0);
}
@@ -545,7 +555,6 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
int ret;
u32 reg;
- dwc->start_config_issued = false;
cfg = le16_to_cpu(ctrl->wValue);
switch (state) {
@@ -727,10 +736,6 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_ISOCH_DELAY");
ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
break;
- case USB_REQ_SET_INTERFACE:
- dwc3_trace(trace_dwc3_ep0, "USB_REQ_SET_INTERFACE");
- dwc->start_config_issued = false;
- /* Fall through */
default:
dwc3_trace(trace_dwc3_ep0, "Forwarding to gadget driver");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
@@ -783,7 +788,11 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
struct usb_request *ur;
struct dwc3_trb *trb;
struct dwc3_ep *ep0;
- u32 transferred;
+ unsigned transfer_size = 0;
+ unsigned maxp;
+ unsigned remaining_ur_length;
+ void *buf;
+ u32 transferred = 0;
u32 status;
u32 length;
u8 epnum;
@@ -812,22 +821,37 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
}
ur = &r->request;
+ buf = ur->buf;
+ remaining_ur_length = ur->length;
length = trb->size & DWC3_TRB_SIZE_MASK;
+ maxp = ep0->endpoint.maxpacket;
+
if (dwc->ep0_bounced) {
- unsigned transfer_size = ur->length;
- unsigned maxp = ep0->endpoint.maxpacket;
+ /*
+ * Handle the first TRB before handling the bounce buffer if
+ * the request length is greater than the bounce buffer size
+ */
+ if (ur->length > DWC3_EP0_BOUNCE_SIZE) {
+ transfer_size = ALIGN(ur->length - maxp, maxp);
+ transferred = transfer_size - length;
+ buf = (u8 *)buf + transferred;
+ ur->actual += transferred;
+ remaining_ur_length -= transferred;
- transfer_size += (maxp - (transfer_size % maxp));
+ trb++;
+ length = trb->size & DWC3_TRB_SIZE_MASK;
+
+ ep0->free_slot = 0;
+ }
- /* Maximum of DWC3_EP0_BOUNCE_SIZE can only be received */
- if (transfer_size > DWC3_EP0_BOUNCE_SIZE)
- transfer_size = DWC3_EP0_BOUNCE_SIZE;
+ transfer_size = roundup((ur->length - transfer_size),
+ maxp);
- transferred = min_t(u32, ur->length,
- transfer_size - length);
- memcpy(ur->buf, dwc->ep0_bounce, transferred);
+ transferred = min_t(u32, remaining_ur_length,
+ transfer_size - length);
+ memcpy(buf, dwc->ep0_bounce, transferred);
} else {
transferred = ur->length - length;
}
@@ -849,7 +873,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
ret = dwc3_ep0_start_trans(dwc, epnum,
dwc->ctrl_req_addr, 0,
- DWC3_TRBCTL_CONTROL_DATA);
+ DWC3_TRBCTL_CONTROL_DATA, false);
WARN_ON(ret < 0);
}
}
@@ -933,10 +957,10 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
if (req->request.length == 0) {
ret = dwc3_ep0_start_trans(dwc, dep->number,
dwc->ctrl_req_addr, 0,
- DWC3_TRBCTL_CONTROL_DATA);
+ DWC3_TRBCTL_CONTROL_DATA, false);
} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
&& (dep->number == 0)) {
- u32 transfer_size;
+ u32 transfer_size = 0;
u32 maxpacket;
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
@@ -947,23 +971,25 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
}
maxpacket = dep->endpoint.maxpacket;
- transfer_size = roundup(req->request.length, maxpacket);
- if (transfer_size > DWC3_EP0_BOUNCE_SIZE) {
- dev_WARN(dwc->dev, "bounce buf can't handle req len\n");
- transfer_size = DWC3_EP0_BOUNCE_SIZE;
+ if (req->request.length > DWC3_EP0_BOUNCE_SIZE) {
+ transfer_size = ALIGN(req->request.length - maxpacket,
+ maxpacket);
+ ret = dwc3_ep0_start_trans(dwc, dep->number,
+ req->request.dma,
+ transfer_size,
+ DWC3_TRBCTL_CONTROL_DATA,
+ true);
}
+ transfer_size = roundup((req->request.length - transfer_size),
+ maxpacket);
+
dwc->ep0_bounced = true;
- /*
- * REVISIT in case request length is bigger than
- * DWC3_EP0_BOUNCE_SIZE we will need two chained
- * TRBs to handle the transfer.
- */
ret = dwc3_ep0_start_trans(dwc, dep->number,
dwc->ep0_bounce_addr, transfer_size,
- DWC3_TRBCTL_CONTROL_DATA);
+ DWC3_TRBCTL_CONTROL_DATA, false);
} else {
ret = usb_gadget_map_request(&dwc->gadget, &req->request,
dep->number);
@@ -973,7 +999,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
}
ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,
- req->request.length, DWC3_TRBCTL_CONTROL_DATA);
+ req->request.length, DWC3_TRBCTL_CONTROL_DATA,
+ false);
}
WARN_ON(ret < 0);
@@ -988,7 +1015,7 @@ static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)
: DWC3_TRBCTL_CONTROL_STATUS2;
return dwc3_ep0_start_trans(dwc, dep->number,
- dwc->ctrl_req_addr, 0, type);
+ dwc->ctrl_req_addr, 0, type, false);
}
static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
diff --git a/kernel/drivers/usb/dwc3/gadget.c b/kernel/drivers/usb/dwc3/gadget.c
index 333a7c007..69ffe6e8d 100644
--- a/kernel/drivers/usb/dwc3/gadget.c
+++ b/kernel/drivers/usb/dwc3/gadget.c
@@ -388,24 +388,66 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep)
dep->trb_pool_dma = 0;
}
+static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep);
+
+/**
+ * dwc3_gadget_start_config - Configure EP resources
+ * @dwc: pointer to our controller context structure
+ * @dep: endpoint that is being enabled
+ *
+ * The assignment of transfer resources cannot perfectly follow the
+ * data book due to the fact that the controller driver does not have
+ * all knowledge of the configuration in advance. It is given this
+ * information piecemeal by the composite gadget framework after every
+ * SET_CONFIGURATION and SET_INTERFACE. Trying to follow the databook
+ * programming model in this scenario can cause errors. For two
+ * reasons:
+ *
+ * 1) The databook says to do DEPSTARTCFG for every SET_CONFIGURATION
+ * and SET_INTERFACE (8.1.5). This is incorrect in the scenario of
+ * multiple interfaces.
+ *
+ * 2) The databook does not mention doing more DEPXFERCFG for new
+ * endpoint on alt setting (8.1.6).
+ *
+ * The following simplified method is used instead:
+ *
+ * All hardware endpoints can be assigned a transfer resource and this
+ * setting will stay persistent until either a core reset or
+ * hibernation. So whenever we do a DEPSTARTCFG(0) we can go ahead and
+ * do DEPXFERCFG for every hardware endpoint as well. We are
+ * guaranteed that there are as many transfer resources as endpoints.
+ *
+ * This function is called for each endpoint when it is being enabled
+ * but is triggered only when called for EP0-out, which always happens
+ * first, and which should only happen in one of the above conditions.
+ */
static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
{
struct dwc3_gadget_ep_cmd_params params;
u32 cmd;
+ int i;
+ int ret;
+
+ if (dep->number)
+ return 0;
memset(&params, 0x00, sizeof(params));
+ cmd = DWC3_DEPCMD_DEPSTARTCFG;
- if (dep->number != 1) {
- cmd = DWC3_DEPCMD_DEPSTARTCFG;
- /* XferRscIdx == 0 for ep0 and 2 for the remaining */
- if (dep->number > 1) {
- if (dwc->start_config_issued)
- return 0;
- dwc->start_config_issued = true;
- cmd |= DWC3_DEPCMD_PARAM(2);
- }
+ ret = dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
+ struct dwc3_ep *dep = dwc->eps[i];
- return dwc3_send_gadget_ep_cmd(dwc, 0, cmd, &params);
+ if (!dep)
+ continue;
+
+ ret = dwc3_gadget_set_xfer_resource(dwc, dep);
+ if (ret)
+ return ret;
}
return 0;
@@ -519,10 +561,6 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
struct dwc3_trb *trb_st_hw;
struct dwc3_trb *trb_link;
- ret = dwc3_gadget_set_xfer_resource(dwc, dep);
- if (ret)
- return ret;
-
dep->endpoint.desc = desc;
dep->comp_desc = comp_desc;
dep->type = usb_endpoint_type(desc);
@@ -547,6 +585,23 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
trb_link->ctrl |= DWC3_TRB_CTRL_HWO;
}
+ switch (usb_endpoint_type(desc)) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ strlcat(dep->name, "-control", sizeof(dep->name));
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ strlcat(dep->name, "-isoc", sizeof(dep->name));
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ strlcat(dep->name, "-bulk", sizeof(dep->name));
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ strlcat(dep->name, "-int", sizeof(dep->name));
+ break;
+ default:
+ dev_err(dwc->dev, "invalid endpoint transfer type\n");
+ }
+
return 0;
}
@@ -586,6 +641,8 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
struct dwc3 *dwc = dep->dwc;
u32 reg;
+ dwc3_trace(trace_dwc3_gadget, "Disabling %s", dep->name);
+
dwc3_remove_requests(dwc, dep);
/* make sure HW endpoint isn't stalled */
@@ -602,6 +659,10 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
dep->type = 0;
dep->flags = 0;
+ snprintf(dep->name, sizeof(dep->name), "ep%d%s",
+ dep->number >> 1,
+ (dep->number & 1) ? "in" : "out");
+
return 0;
}
@@ -647,23 +708,6 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
return 0;
}
- switch (usb_endpoint_type(desc)) {
- case USB_ENDPOINT_XFER_CONTROL:
- strlcat(dep->name, "-control", sizeof(dep->name));
- break;
- case USB_ENDPOINT_XFER_ISOC:
- strlcat(dep->name, "-isoc", sizeof(dep->name));
- break;
- case USB_ENDPOINT_XFER_BULK:
- strlcat(dep->name, "-bulk", sizeof(dep->name));
- break;
- case USB_ENDPOINT_XFER_INT:
- strlcat(dep->name, "-int", sizeof(dep->name));
- break;
- default:
- dev_err(dwc->dev, "invalid endpoint transfer type\n");
- }
-
spin_lock_irqsave(&dwc->lock, flags);
ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc, false, false);
spin_unlock_irqrestore(&dwc->lock, flags);
@@ -692,10 +736,6 @@ static int dwc3_gadget_ep_disable(struct usb_ep *ep)
return 0;
}
- snprintf(dep->name, sizeof(dep->name), "ep%d%s",
- dep->number >> 1,
- (dep->number & 1) ? "in" : "out");
-
spin_lock_irqsave(&dwc->lock, flags);
ret = __dwc3_gadget_ep_disable(dep);
spin_unlock_irqrestore(&dwc->lock, flags);
@@ -946,7 +986,6 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
dwc3_trace(trace_dwc3_gadget, "%s: endpoint busy", dep->name);
return -EBUSY;
}
- dep->flags &= ~DWC3_EP_PENDING_REQUEST;
/*
* If we are getting here after a short-out-packet we don't enqueue any
@@ -1048,6 +1087,8 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
req->direction = dep->direction;
req->epnum = dep->number;
+ trace_dwc3_ep_queue(req);
+
/*
* We only add to our list of requests now and
* start consuming the list once we get XferNotReady
@@ -1068,6 +1109,20 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
list_add_tail(&req->list, &dep->request_list);
/*
+ * If there are no pending requests and the endpoint isn't already
+ * busy, we will just start the request straight away.
+ *
+ * This will save one IRQ (XFER_NOT_READY) and possibly make it a
+ * little bit faster.
+ */
+ if (!usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
+ !usb_endpoint_xfer_int(dep->endpoint.desc) &&
+ !(dep->flags & DWC3_EP_BUSY)) {
+ ret = __dwc3_gadget_kick_transfer(dep, 0, true);
+ goto out;
+ }
+
+ /*
* There are a few special cases:
*
* 1. XferNotReady with empty list of requests. We need to kick the
@@ -1094,10 +1149,10 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
}
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- return ret;
+ if (!ret)
+ dep->flags &= ~DWC3_EP_PENDING_REQUEST;
+
+ goto out;
}
/*
@@ -1111,10 +1166,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
WARN_ON_ONCE(!dep->resource_index);
ret = __dwc3_gadget_kick_transfer(dep, dep->resource_index,
false);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- return ret;
+ goto out;
}
/*
@@ -1122,14 +1174,17 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
* right away, otherwise host will not know we have streams to be
* handled.
*/
- if (dep->stream_capable) {
+ if (dep->stream_capable)
ret = __dwc3_gadget_kick_transfer(dep, 0, true);
- if (ret && ret != -EBUSY)
- dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
- dep->name);
- }
- return 0;
+out:
+ if (ret && ret != -EBUSY)
+ dev_dbg(dwc->dev, "%s: failed to kick transfers\n",
+ dep->name);
+ if (ret == -EBUSY)
+ ret = 0;
+
+ return ret;
}
static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
@@ -1157,8 +1212,6 @@ static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
goto out;
}
- trace_dwc3_ep_queue(req);
-
ret = __dwc3_gadget_ep_queue(dep, req);
out:
@@ -1589,8 +1642,6 @@ static int dwc3_gadget_start(struct usb_gadget *g,
}
dwc3_writel(dwc->regs, DWC3_DCFG, reg);
- dwc->start_config_issued = false;
-
/* Start with SuperSpeed Default */
dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
@@ -1713,6 +1764,17 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
return ret;
}
+ if (epnum == 0 || epnum == 1) {
+ dep->endpoint.caps.type_control = true;
+ } else {
+ dep->endpoint.caps.type_iso = true;
+ dep->endpoint.caps.type_bulk = true;
+ dep->endpoint.caps.type_int = true;
+ }
+
+ dep->endpoint.caps.dir_in = !!direction;
+ dep->endpoint.caps.dir_out = !direction;
+
INIT_LIST_HEAD(&dep->request_list);
INIT_LIST_HEAD(&dep->req_queued);
}
@@ -1859,27 +1921,32 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
unsigned int i;
int ret;
- req = next_request(&dep->req_queued);
- if (!req) {
- WARN_ON_ONCE(1);
- return 1;
- }
- i = 0;
do {
- slot = req->start_slot + i;
- if ((slot == DWC3_TRB_NUM - 1) &&
+ req = next_request(&dep->req_queued);
+ if (!req) {
+ WARN_ON_ONCE(1);
+ return 1;
+ }
+ i = 0;
+ do {
+ slot = req->start_slot + i;
+ if ((slot == DWC3_TRB_NUM - 1) &&
usb_endpoint_xfer_isoc(dep->endpoint.desc))
- slot++;
- slot %= DWC3_TRB_NUM;
- trb = &dep->trb_pool[slot];
+ slot++;
+ slot %= DWC3_TRB_NUM;
+ trb = &dep->trb_pool[slot];
+
+ ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
+ event, status);
+ if (ret)
+ break;
+ } while (++i < req->request.num_mapped_sgs);
+
+ dwc3_gadget_giveback(dep, req, status);
- ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb,
- event, status);
if (ret)
break;
- } while (++i < req->request.num_mapped_sgs);
-
- dwc3_gadget_giveback(dep, req, status);
+ } while (1);
if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&
list_empty(&dep->req_queued)) {
@@ -1942,6 +2009,14 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
dwc->u1u2 = 0;
}
+
+ if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
+ int ret;
+
+ ret = __dwc3_gadget_kick_transfer(dep, 0, is_xfer_complete);
+ if (!ret || ret == -EBUSY)
+ return;
+ }
}
static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
@@ -1979,15 +2054,16 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
dwc3_gadget_start_isoc(dwc, dep, event);
} else {
+ int active;
int ret;
+ active = event->status & DEPEVT_STATUS_TRANSFER_ACTIVE;
+
dwc3_trace(trace_dwc3_gadget, "%s: reason %s",
- dep->name, event->status &
- DEPEVT_STATUS_TRANSFER_ACTIVE
- ? "Transfer Active"
+ dep->name, active ? "Transfer Active"
: "Transfer Not Active");
- ret = __dwc3_gadget_kick_transfer(dep, 0, 1);
+ ret = __dwc3_gadget_kick_transfer(dep, 0, !active);
if (!ret || ret == -EBUSY)
return;
@@ -2162,7 +2238,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
dwc3_disconnect_gadget(dwc);
- dwc->start_config_issued = false;
dwc->gadget.speed = USB_SPEED_UNKNOWN;
dwc->setup_packet_pending = false;
@@ -2213,7 +2288,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
dwc3_stop_active_transfers(dwc);
dwc3_clear_stall_all_ep(dwc);
- dwc->start_config_issued = false;
/* Reset device address to zero */
reg = dwc3_readl(dwc->regs, DWC3_DCFG);
@@ -2652,8 +2726,6 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
int i;
irqreturn_t ret = IRQ_NONE;
- spin_lock(&dwc->lock);
-
for (i = 0; i < dwc->num_event_buffers; i++) {
irqreturn_t status;
@@ -2662,8 +2734,6 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
ret = status;
}
- spin_unlock(&dwc->lock);
-
return ret;
}
@@ -2685,7 +2755,7 @@ int dwc3_gadget_init(struct dwc3 *dwc)
goto err0;
}
- dwc->ep0_trb = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ep0_trb),
+ dwc->ep0_trb = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2,
&dwc->ep0_trb_addr, GFP_KERNEL);
if (!dwc->ep0_trb) {
dev_err(dwc->dev, "failed to allocate ep0 trb\n");
@@ -2709,12 +2779,34 @@ int dwc3_gadget_init(struct dwc3 *dwc)
}
dwc->gadget.ops = &dwc3_gadget_ops;
- dwc->gadget.max_speed = USB_SPEED_SUPER;
dwc->gadget.speed = USB_SPEED_UNKNOWN;
dwc->gadget.sg_supported = true;
dwc->gadget.name = "dwc3-gadget";
/*
+ * FIXME We might be setting max_speed to <SUPER, however versions
+ * <2.20a of dwc3 have an issue with metastability (documented
+ * elsewhere in this driver) which tells us we can't set max speed to
+ * anything lower than SUPER.
+ *
+ * Because gadget.max_speed is only used by composite.c and function
+ * drivers (i.e. it won't go into dwc3's registers) we are allowing this
+ * to happen so we avoid sending SuperSpeed Capability descriptor
+ * together with our BOS descriptor as that could confuse host into
+ * thinking we can handle super speed.
+ *
+ * Note that, in fact, we won't even support GetBOS requests when speed
+ * is less than super speed because we don't have means, yet, to tell
+ * composite.c that we are USB 2.0 + LPM ECN.
+ */
+ if (dwc->revision < DWC3_REVISION_220A)
+ dwc3_trace(trace_dwc3_gadget,
+ "Changing max_speed on rev %08x\n",
+ dwc->revision);
+
+ dwc->gadget.max_speed = dwc->maximum_speed;
+
+ /*
* Per databook, DWC3 needs buffer size to be aligned to MaxPacketSize
* on ep out.
*/
diff --git a/kernel/drivers/usb/dwc3/platform_data.h b/kernel/drivers/usb/dwc3/platform_data.h
index a2bd464be..2bb4d3ad0 100644
--- a/kernel/drivers/usb/dwc3/platform_data.h
+++ b/kernel/drivers/usb/dwc3/platform_data.h
@@ -42,7 +42,12 @@ struct dwc3_platform_data {
unsigned rx_detect_poll_quirk:1;
unsigned dis_u3_susphy_quirk:1;
unsigned dis_u2_susphy_quirk:1;
+ unsigned dis_enblslpm_quirk:1;
unsigned tx_de_emphasis_quirk:1;
unsigned tx_de_emphasis:2;
+
+ u32 fladj_value;
+
+ const char *hsphy_interface;
};
diff --git a/kernel/drivers/usb/dwc3/ulpi.c b/kernel/drivers/usb/dwc3/ulpi.c
new file mode 100644
index 000000000..ec004c6d7
--- /dev/null
+++ b/kernel/drivers/usb/dwc3/ulpi.c
@@ -0,0 +1,91 @@
+/**
+ * ulpi.c - DesignWare USB3 Controller's ULPI PHY interface
+ *
+ * Copyright (C) 2015 Intel Corporation
+ *
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/ulpi/regs.h>
+
+#include "core.h"
+#include "io.h"
+
+#define DWC3_ULPI_ADDR(a) \
+ ((a >= ULPI_EXT_VENDOR_SPECIFIC) ? \
+ DWC3_GUSB2PHYACC_ADDR(ULPI_ACCESS_EXTENDED) | \
+ DWC3_GUSB2PHYACC_EXTEND_ADDR(a) : DWC3_GUSB2PHYACC_ADDR(a))
+
+static int dwc3_ulpi_busyloop(struct dwc3 *dwc)
+{
+ unsigned count = 1000;
+ u32 reg;
+
+ while (count--) {
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYACC(0));
+ if (!(reg & DWC3_GUSB2PHYACC_BUSY))
+ return 0;
+ cpu_relax();
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int dwc3_ulpi_read(struct ulpi_ops *ops, u8 addr)
+{
+ struct dwc3 *dwc = dev_get_drvdata(ops->dev);
+ u32 reg;
+ int ret;
+
+ reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr);
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg);
+
+ ret = dwc3_ulpi_busyloop(dwc);
+ if (ret)
+ return ret;
+
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYACC(0));
+
+ return DWC3_GUSB2PHYACC_DATA(reg);
+}
+
+static int dwc3_ulpi_write(struct ulpi_ops *ops, u8 addr, u8 val)
+{
+ struct dwc3 *dwc = dev_get_drvdata(ops->dev);
+ u32 reg;
+
+ reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr);
+ reg |= DWC3_GUSB2PHYACC_WRITE | val;
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg);
+
+ return dwc3_ulpi_busyloop(dwc);
+}
+
+static struct ulpi_ops dwc3_ulpi_ops = {
+ .read = dwc3_ulpi_read,
+ .write = dwc3_ulpi_write,
+};
+
+int dwc3_ulpi_init(struct dwc3 *dwc)
+{
+ /* Register the interface */
+ dwc->ulpi = ulpi_register_interface(dwc->dev, &dwc3_ulpi_ops);
+ if (IS_ERR(dwc->ulpi)) {
+ dev_err(dwc->dev, "failed to register ULPI interface");
+ return PTR_ERR(dwc->ulpi);
+ }
+
+ return 0;
+}
+
+void dwc3_ulpi_exit(struct dwc3 *dwc)
+{
+ if (dwc->ulpi) {
+ ulpi_unregister_interface(dwc->ulpi);
+ dwc->ulpi = NULL;
+ }
+}
diff --git a/kernel/drivers/usb/gadget/Kconfig b/kernel/drivers/usb/gadget/Kconfig
index bcf83c0a6..33834aa09 100644
--- a/kernel/drivers/usb/gadget/Kconfig
+++ b/kernel/drivers/usb/gadget/Kconfig
@@ -113,7 +113,7 @@ config USB_GADGET_VBUS_DRAW
config USB_GADGET_STORAGE_NUM_BUFFERS
int "Number of storage pipeline buffers"
- range 2 4
+ range 2 32
default 2
help
Usually 2 buffers are enough to establish a good buffering
diff --git a/kernel/drivers/usb/gadget/composite.c b/kernel/drivers/usb/gadget/composite.c
index 58b4657fc..8b14c2a13 100644
--- a/kernel/drivers/usb/gadget/composite.c
+++ b/kernel/drivers/usb/gadget/composite.c
@@ -19,6 +19,7 @@
#include <linux/utsname.h>
#include <linux/usb/composite.h>
+#include <linux/usb/otg.h>
#include <asm/unaligned.h>
#include "u_os_desc.h"
@@ -209,6 +210,12 @@ int usb_add_function(struct usb_configuration *config,
function->config = config;
list_add_tail(&function->list, &config->functions);
+ if (function->bind_deactivated) {
+ value = usb_function_deactivate(function);
+ if (value)
+ goto done;
+ }
+
/* REVISIT *require* function->bind? */
if (function->bind) {
value = function->bind(config, function);
@@ -279,7 +286,7 @@ int usb_function_deactivate(struct usb_function *function)
spin_lock_irqsave(&cdev->lock, flags);
if (cdev->deactivations == 0)
- status = usb_gadget_disconnect(cdev->gadget);
+ status = usb_gadget_deactivate(cdev->gadget);
if (status == 0)
cdev->deactivations++;
@@ -311,7 +318,7 @@ int usb_function_activate(struct usb_function *function)
else {
cdev->deactivations--;
if (cdev->deactivations == 0)
- status = usb_gadget_connect(cdev->gadget);
+ status = usb_gadget_activate(cdev->gadget);
}
spin_unlock_irqrestore(&cdev->lock, flags);
@@ -832,9 +839,7 @@ int usb_add_config(struct usb_composite_dev *cdev,
}
}
- /* set_alt(), or next bind(), sets up
- * ep->driver_data as needed.
- */
+ /* set_alt(), or next bind(), sets up ep->claimed as needed */
usb_ep_autoconfig_reset(cdev->gadget);
done:
@@ -896,7 +901,7 @@ void usb_remove_config(struct usb_composite_dev *cdev,
/* We support strings in multiple languages ... string descriptor zero
* says which languages are supported. The typical case will be that
- * only one language (probably English) is used, with I18N handled on
+ * only one language (probably English) is used, with i18n handled on
* the host side.
*/
@@ -949,7 +954,7 @@ static int get_string(struct usb_composite_dev *cdev,
struct usb_function *f;
int len;
- /* Yes, not only is USB's I18N support probably more than most
+ /* Yes, not only is USB's i18n support probably more than most
* folk will ever care about ... also, it's all supported here.
* (Except for UTF8 support for Unicode's "Astral Planes".)
*/
@@ -1499,6 +1504,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
} else {
cdev->desc.bcdUSB = cpu_to_le16(0x0210);
}
+ } else {
+ cdev->desc.bcdUSB = cpu_to_le16(0x0200);
}
value = min(w_length, (u16) sizeof cdev->desc);
@@ -1534,6 +1541,32 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
value = min(w_length, (u16) value);
}
break;
+ case USB_DT_OTG:
+ if (gadget_is_otg(gadget)) {
+ struct usb_configuration *config;
+ int otg_desc_len = 0;
+
+ if (cdev->config)
+ config = cdev->config;
+ else
+ config = list_first_entry(
+ &cdev->configs,
+ struct usb_configuration, list);
+ if (!config)
+ goto done;
+
+ if (gadget->otg_caps &&
+ (gadget->otg_caps->otg_rev >= 0x0200))
+ otg_desc_len += sizeof(
+ struct usb_otg20_descriptor);
+ else
+ otg_desc_len += sizeof(
+ struct usb_otg_descriptor);
+
+ value = min_t(int, w_length, otg_desc_len);
+ memcpy(req->buf, config->descriptors[0], value);
+ }
+ break;
}
break;
diff --git a/kernel/drivers/usb/gadget/config.c b/kernel/drivers/usb/gadget/config.c
index 34e12fc52..0fafa7a1b 100644
--- a/kernel/drivers/usb/gadget/config.c
+++ b/kernel/drivers/usb/gadget/config.c
@@ -20,6 +20,7 @@
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/composite.h>
+#include <linux/usb/otg.h>
/**
* usb_descriptor_fillbuf - fill buffer with descriptors
@@ -195,3 +196,58 @@ void usb_free_all_descriptors(struct usb_function *f)
usb_free_descriptors(f->ss_descriptors);
}
EXPORT_SYMBOL_GPL(usb_free_all_descriptors);
+
+struct usb_descriptor_header *usb_otg_descriptor_alloc(
+ struct usb_gadget *gadget)
+{
+ struct usb_descriptor_header *otg_desc;
+ unsigned length = 0;
+
+ if (gadget->otg_caps && (gadget->otg_caps->otg_rev >= 0x0200))
+ length = sizeof(struct usb_otg20_descriptor);
+ else
+ length = sizeof(struct usb_otg_descriptor);
+
+ otg_desc = kzalloc(length, GFP_KERNEL);
+ return otg_desc;
+}
+EXPORT_SYMBOL_GPL(usb_otg_descriptor_alloc);
+
+int usb_otg_descriptor_init(struct usb_gadget *gadget,
+ struct usb_descriptor_header *otg_desc)
+{
+ struct usb_otg_descriptor *otg1x_desc;
+ struct usb_otg20_descriptor *otg20_desc;
+ struct usb_otg_caps *otg_caps = gadget->otg_caps;
+ u8 otg_attributes = 0;
+
+ if (!otg_desc)
+ return -EINVAL;
+
+ if (otg_caps && otg_caps->otg_rev) {
+ if (otg_caps->hnp_support)
+ otg_attributes |= USB_OTG_HNP;
+ if (otg_caps->srp_support)
+ otg_attributes |= USB_OTG_SRP;
+ if (otg_caps->adp_support && (otg_caps->otg_rev >= 0x0200))
+ otg_attributes |= USB_OTG_ADP;
+ } else {
+ otg_attributes = USB_OTG_SRP | USB_OTG_HNP;
+ }
+
+ if (otg_caps && (otg_caps->otg_rev >= 0x0200)) {
+ otg20_desc = (struct usb_otg20_descriptor *)otg_desc;
+ otg20_desc->bLength = sizeof(struct usb_otg20_descriptor);
+ otg20_desc->bDescriptorType = USB_DT_OTG;
+ otg20_desc->bmAttributes = otg_attributes;
+ otg20_desc->bcdOTG = cpu_to_le16(otg_caps->otg_rev);
+ } else {
+ otg1x_desc = (struct usb_otg_descriptor *)otg_desc;
+ otg1x_desc->bLength = sizeof(struct usb_otg_descriptor);
+ otg1x_desc->bDescriptorType = USB_DT_OTG;
+ otg1x_desc->bmAttributes = otg_attributes;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usb_otg_descriptor_init);
diff --git a/kernel/drivers/usb/gadget/configfs.c b/kernel/drivers/usb/gadget/configfs.c
index 0495c94a2..163d305e1 100644
--- a/kernel/drivers/usb/gadget/configfs.c
+++ b/kernel/drivers/usb/gadget/configfs.c
@@ -41,6 +41,8 @@ int check_user_usb_string(const char *name,
#define MAX_NAME_LEN 40
#define MAX_USB_STRING_LANGS 2
+static const struct usb_descriptor_header *otg_desc[2];
+
struct gadget_info {
struct config_group group;
struct config_group functions_group;
@@ -55,9 +57,6 @@ struct gadget_info {
struct list_head available_func;
const char *udc_name;
-#ifdef CONFIG_USB_OTG
- struct usb_otg_descriptor otg;
-#endif
struct usb_composite_driver composite;
struct usb_composite_dev cdev;
bool use_os_desc;
@@ -65,6 +64,11 @@ struct gadget_info {
char qw_sign[OS_STRING_QW_SIGN_LEN];
};
+static inline struct gadget_info *to_gadget_info(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct gadget_info, group);
+}
+
struct config_usb_cfg {
struct config_group group;
struct config_group strings_group;
@@ -75,6 +79,12 @@ struct config_usb_cfg {
struct usb_gadget_strings *gstrings[MAX_USB_STRING_LANGS + 1];
};
+static inline struct config_usb_cfg *to_config_usb_cfg(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct config_usb_cfg,
+ group);
+}
+
struct gadget_strings {
struct usb_gadget_strings stringtab_dev;
struct usb_string strings[USB_GADGET_FIRST_AVAIL_IDX];
@@ -118,32 +128,25 @@ static int usb_string_copy(const char *s, char **s_copy)
return 0;
}
-CONFIGFS_ATTR_STRUCT(gadget_info);
-CONFIGFS_ATTR_STRUCT(config_usb_cfg);
-
-#define GI_DEVICE_DESC_ITEM_ATTR(name) \
- static struct gadget_info_attribute gadget_cdev_desc_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \
- gadget_dev_desc_##name##_show, \
- gadget_dev_desc_##name##_store)
-
#define GI_DEVICE_DESC_SIMPLE_R_u8(__name) \
- static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \
+static ssize_t gadget_dev_desc_##__name##_show(struct config_item *item, \
char *page) \
{ \
- return sprintf(page, "0x%02x\n", gi->cdev.desc.__name); \
+ return sprintf(page, "0x%02x\n", \
+ to_gadget_info(item)->cdev.desc.__name); \
}
#define GI_DEVICE_DESC_SIMPLE_R_u16(__name) \
- static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \
+static ssize_t gadget_dev_desc_##__name##_show(struct config_item *item, \
char *page) \
{ \
- return sprintf(page, "0x%04x\n", le16_to_cpup(&gi->cdev.desc.__name)); \
+ return sprintf(page, "0x%04x\n", \
+ le16_to_cpup(&to_gadget_info(item)->cdev.desc.__name)); \
}
#define GI_DEVICE_DESC_SIMPLE_W_u8(_name) \
- static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \
+static ssize_t gadget_dev_desc_##_name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
u8 val; \
@@ -151,12 +154,12 @@ CONFIGFS_ATTR_STRUCT(config_usb_cfg);
ret = kstrtou8(page, 0, &val); \
if (ret) \
return ret; \
- gi->cdev.desc._name = val; \
+ to_gadget_info(item)->cdev.desc._name = val; \
return len; \
}
#define GI_DEVICE_DESC_SIMPLE_W_u16(_name) \
- static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \
+static ssize_t gadget_dev_desc_##_name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
u16 val; \
@@ -164,7 +167,7 @@ CONFIGFS_ATTR_STRUCT(config_usb_cfg);
ret = kstrtou16(page, 0, &val); \
if (ret) \
return ret; \
- gi->cdev.desc._name = cpu_to_le16p(&val); \
+ to_gadget_info(item)->cdev.desc._name = cpu_to_le16p(&val); \
return len; \
}
@@ -194,7 +197,7 @@ static ssize_t is_valid_bcd(u16 bcd_val)
return 0;
}
-static ssize_t gadget_dev_desc_bcdDevice_store(struct gadget_info *gi,
+static ssize_t gadget_dev_desc_bcdDevice_store(struct config_item *item,
const char *page, size_t len)
{
u16 bcdDevice;
@@ -207,11 +210,11 @@ static ssize_t gadget_dev_desc_bcdDevice_store(struct gadget_info *gi,
if (ret)
return ret;
- gi->cdev.desc.bcdDevice = cpu_to_le16(bcdDevice);
+ to_gadget_info(item)->cdev.desc.bcdDevice = cpu_to_le16(bcdDevice);
return len;
}
-static ssize_t gadget_dev_desc_bcdUSB_store(struct gadget_info *gi,
+static ssize_t gadget_dev_desc_bcdUSB_store(struct config_item *item,
const char *page, size_t len)
{
u16 bcdUSB;
@@ -224,13 +227,13 @@ static ssize_t gadget_dev_desc_bcdUSB_store(struct gadget_info *gi,
if (ret)
return ret;
- gi->cdev.desc.bcdUSB = cpu_to_le16(bcdUSB);
+ to_gadget_info(item)->cdev.desc.bcdUSB = cpu_to_le16(bcdUSB);
return len;
}
-static ssize_t gadget_dev_desc_UDC_show(struct gadget_info *gi, char *page)
+static ssize_t gadget_dev_desc_UDC_show(struct config_item *item, char *page)
{
- return sprintf(page, "%s\n", gi->udc_name ?: "");
+ return sprintf(page, "%s\n", to_gadget_info(item)->udc_name ?: "");
}
static int unregister_gadget(struct gadget_info *gi)
@@ -248,9 +251,10 @@ static int unregister_gadget(struct gadget_info *gi)
return 0;
}
-static ssize_t gadget_dev_desc_UDC_store(struct gadget_info *gi,
+static ssize_t gadget_dev_desc_UDC_store(struct config_item *item,
const char *page, size_t len)
{
+ struct gadget_info *gi = to_gadget_info(item);
char *name;
int ret;
@@ -284,34 +288,29 @@ err:
return ret;
}
-GI_DEVICE_DESC_ITEM_ATTR(bDeviceClass);
-GI_DEVICE_DESC_ITEM_ATTR(bDeviceSubClass);
-GI_DEVICE_DESC_ITEM_ATTR(bDeviceProtocol);
-GI_DEVICE_DESC_ITEM_ATTR(bMaxPacketSize0);
-GI_DEVICE_DESC_ITEM_ATTR(idVendor);
-GI_DEVICE_DESC_ITEM_ATTR(idProduct);
-GI_DEVICE_DESC_ITEM_ATTR(bcdDevice);
-GI_DEVICE_DESC_ITEM_ATTR(bcdUSB);
-GI_DEVICE_DESC_ITEM_ATTR(UDC);
+CONFIGFS_ATTR(gadget_dev_desc_, bDeviceClass);
+CONFIGFS_ATTR(gadget_dev_desc_, bDeviceSubClass);
+CONFIGFS_ATTR(gadget_dev_desc_, bDeviceProtocol);
+CONFIGFS_ATTR(gadget_dev_desc_, bMaxPacketSize0);
+CONFIGFS_ATTR(gadget_dev_desc_, idVendor);
+CONFIGFS_ATTR(gadget_dev_desc_, idProduct);
+CONFIGFS_ATTR(gadget_dev_desc_, bcdDevice);
+CONFIGFS_ATTR(gadget_dev_desc_, bcdUSB);
+CONFIGFS_ATTR(gadget_dev_desc_, UDC);
static struct configfs_attribute *gadget_root_attrs[] = {
- &gadget_cdev_desc_bDeviceClass.attr,
- &gadget_cdev_desc_bDeviceSubClass.attr,
- &gadget_cdev_desc_bDeviceProtocol.attr,
- &gadget_cdev_desc_bMaxPacketSize0.attr,
- &gadget_cdev_desc_idVendor.attr,
- &gadget_cdev_desc_idProduct.attr,
- &gadget_cdev_desc_bcdDevice.attr,
- &gadget_cdev_desc_bcdUSB.attr,
- &gadget_cdev_desc_UDC.attr,
+ &gadget_dev_desc_attr_bDeviceClass,
+ &gadget_dev_desc_attr_bDeviceSubClass,
+ &gadget_dev_desc_attr_bDeviceProtocol,
+ &gadget_dev_desc_attr_bMaxPacketSize0,
+ &gadget_dev_desc_attr_idVendor,
+ &gadget_dev_desc_attr_idProduct,
+ &gadget_dev_desc_attr_bcdDevice,
+ &gadget_dev_desc_attr_bcdUSB,
+ &gadget_dev_desc_attr_UDC,
NULL,
};
-static inline struct gadget_info *to_gadget_info(struct config_item *item)
-{
- return container_of(to_config_group(item), struct gadget_info, group);
-}
-
static inline struct gadget_strings *to_gadget_strings(struct config_item *item)
{
return container_of(to_config_group(item), struct gadget_strings,
@@ -325,12 +324,6 @@ static inline struct gadget_config_name *to_gadget_config_name(
group);
}
-static inline struct config_usb_cfg *to_config_usb_cfg(struct config_item *item)
-{
- return container_of(to_config_group(item), struct config_usb_cfg,
- group);
-}
-
static inline struct usb_function_instance *to_usb_function_instance(
struct config_item *item)
{
@@ -349,12 +342,8 @@ static void gadget_info_attr_release(struct config_item *item)
kfree(gi);
}
-CONFIGFS_ATTR_OPS(gadget_info);
-
static struct configfs_item_operations gadget_root_item_ops = {
.release = gadget_info_attr_release,
- .show_attribute = gadget_info_attr_show,
- .store_attribute = gadget_info_attr_store,
};
static void gadget_config_attr_release(struct config_item *item)
@@ -455,24 +444,20 @@ static int config_usb_cfg_unlink(
return 0;
}
-CONFIGFS_ATTR_OPS(config_usb_cfg);
-
static struct configfs_item_operations gadget_config_item_ops = {
.release = gadget_config_attr_release,
- .show_attribute = config_usb_cfg_attr_show,
- .store_attribute = config_usb_cfg_attr_store,
.allow_link = config_usb_cfg_link,
.drop_link = config_usb_cfg_unlink,
};
-static ssize_t gadget_config_desc_MaxPower_show(struct config_usb_cfg *cfg,
+static ssize_t gadget_config_desc_MaxPower_show(struct config_item *item,
char *page)
{
- return sprintf(page, "%u\n", cfg->c.MaxPower);
+ return sprintf(page, "%u\n", to_config_usb_cfg(item)->c.MaxPower);
}
-static ssize_t gadget_config_desc_MaxPower_store(struct config_usb_cfg *cfg,
+static ssize_t gadget_config_desc_MaxPower_store(struct config_item *item,
const char *page, size_t len)
{
u16 val;
@@ -482,17 +467,18 @@ static ssize_t gadget_config_desc_MaxPower_store(struct config_usb_cfg *cfg,
return ret;
if (DIV_ROUND_UP(val, 8) > 0xff)
return -ERANGE;
- cfg->c.MaxPower = val;
+ to_config_usb_cfg(item)->c.MaxPower = val;
return len;
}
-static ssize_t gadget_config_desc_bmAttributes_show(struct config_usb_cfg *cfg,
+static ssize_t gadget_config_desc_bmAttributes_show(struct config_item *item,
char *page)
{
- return sprintf(page, "0x%02x\n", cfg->c.bmAttributes);
+ return sprintf(page, "0x%02x\n",
+ to_config_usb_cfg(item)->c.bmAttributes);
}
-static ssize_t gadget_config_desc_bmAttributes_store(struct config_usb_cfg *cfg,
+static ssize_t gadget_config_desc_bmAttributes_store(struct config_item *item,
const char *page, size_t len)
{
u8 val;
@@ -505,22 +491,16 @@ static ssize_t gadget_config_desc_bmAttributes_store(struct config_usb_cfg *cfg,
if (val & ~(USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER |
USB_CONFIG_ATT_WAKEUP))
return -EINVAL;
- cfg->c.bmAttributes = val;
+ to_config_usb_cfg(item)->c.bmAttributes = val;
return len;
}
-#define CFG_CONFIG_DESC_ITEM_ATTR(name) \
- static struct config_usb_cfg_attribute gadget_usb_cfg_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \
- gadget_config_desc_##name##_show, \
- gadget_config_desc_##name##_store)
-
-CFG_CONFIG_DESC_ITEM_ATTR(MaxPower);
-CFG_CONFIG_DESC_ITEM_ATTR(bmAttributes);
+CONFIGFS_ATTR(gadget_config_desc_, MaxPower);
+CONFIGFS_ATTR(gadget_config_desc_, bmAttributes);
static struct configfs_attribute *gadget_config_attrs[] = {
- &gadget_usb_cfg_MaxPower.attr,
- &gadget_usb_cfg_bmAttributes.attr,
+ &gadget_config_desc_attr_MaxPower,
+ &gadget_config_desc_attr_bmAttributes,
NULL,
};
@@ -571,7 +551,7 @@ static struct config_group *function_make(
if (IS_ERR(fi))
return ERR_CAST(fi);
- ret = config_item_set_name(&fi->group.cg_item, name);
+ ret = config_item_set_name(&fi->group.cg_item, "%s", name);
if (ret) {
usb_put_function_instance(fi);
return ERR_PTR(ret);
@@ -617,11 +597,10 @@ static struct config_item_type functions_type = {
.ct_owner = THIS_MODULE,
};
-CONFIGFS_ATTR_STRUCT(gadget_config_name);
GS_STRINGS_RW(gadget_config_name, configuration);
static struct configfs_attribute *gadget_config_name_langid_attrs[] = {
- &gadget_config_name_configuration.attr,
+ &gadget_config_name_attr_configuration,
NULL,
};
@@ -720,15 +699,14 @@ static struct config_item_type config_desc_type = {
.ct_owner = THIS_MODULE,
};
-CONFIGFS_ATTR_STRUCT(gadget_strings);
GS_STRINGS_RW(gadget_strings, manufacturer);
GS_STRINGS_RW(gadget_strings, product);
GS_STRINGS_RW(gadget_strings, serialnumber);
static struct configfs_attribute *gadget_strings_langid_attrs[] = {
- &gadget_strings_manufacturer.attr,
- &gadget_strings_product.attr,
- &gadget_strings_serialnumber.attr,
+ &gadget_strings_attr_manufacturer,
+ &gadget_strings_attr_product,
+ &gadget_strings_attr_serialnumber,
NULL,
};
@@ -752,27 +730,25 @@ static inline struct os_desc *to_os_desc(struct config_item *item)
return container_of(to_config_group(item), struct os_desc, group);
}
-CONFIGFS_ATTR_STRUCT(os_desc);
-CONFIGFS_ATTR_OPS(os_desc);
-
-static ssize_t os_desc_use_show(struct os_desc *os_desc, char *page)
+static inline struct gadget_info *os_desc_item_to_gadget_info(
+ struct config_item *item)
{
- struct gadget_info *gi;
-
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
+ return to_gadget_info(to_os_desc(item)->group.cg_item.ci_parent);
+}
- return sprintf(page, "%d", gi->use_os_desc);
+static ssize_t os_desc_use_show(struct config_item *item, char *page)
+{
+ return sprintf(page, "%d",
+ os_desc_item_to_gadget_info(item)->use_os_desc);
}
-static ssize_t os_desc_use_store(struct os_desc *os_desc, const char *page,
+static ssize_t os_desc_use_store(struct config_item *item, const char *page,
size_t len)
{
- struct gadget_info *gi;
+ struct gadget_info *gi = os_desc_item_to_gadget_info(item);
int ret;
bool use;
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
-
mutex_lock(&gi->lock);
ret = strtobool(page, &use);
if (!ret) {
@@ -784,29 +760,19 @@ static ssize_t os_desc_use_store(struct os_desc *os_desc, const char *page,
return ret;
}
-static struct os_desc_attribute os_desc_use =
- __CONFIGFS_ATTR(use, S_IRUGO | S_IWUSR,
- os_desc_use_show,
- os_desc_use_store);
-
-static ssize_t os_desc_b_vendor_code_show(struct os_desc *os_desc, char *page)
+static ssize_t os_desc_b_vendor_code_show(struct config_item *item, char *page)
{
- struct gadget_info *gi;
-
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
-
- return sprintf(page, "%d", gi->b_vendor_code);
+ return sprintf(page, "%d",
+ os_desc_item_to_gadget_info(item)->b_vendor_code);
}
-static ssize_t os_desc_b_vendor_code_store(struct os_desc *os_desc,
+static ssize_t os_desc_b_vendor_code_store(struct config_item *item,
const char *page, size_t len)
{
- struct gadget_info *gi;
+ struct gadget_info *gi = os_desc_item_to_gadget_info(item);
int ret;
u8 b_vendor_code;
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
-
mutex_lock(&gi->lock);
ret = kstrtou8(page, 0, &b_vendor_code);
if (!ret) {
@@ -818,29 +784,20 @@ static ssize_t os_desc_b_vendor_code_store(struct os_desc *os_desc,
return ret;
}
-static struct os_desc_attribute os_desc_b_vendor_code =
- __CONFIGFS_ATTR(b_vendor_code, S_IRUGO | S_IWUSR,
- os_desc_b_vendor_code_show,
- os_desc_b_vendor_code_store);
-
-static ssize_t os_desc_qw_sign_show(struct os_desc *os_desc, char *page)
+static ssize_t os_desc_qw_sign_show(struct config_item *item, char *page)
{
- struct gadget_info *gi;
-
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
+ struct gadget_info *gi = os_desc_item_to_gadget_info(item);
memcpy(page, gi->qw_sign, OS_STRING_QW_SIGN_LEN);
-
return OS_STRING_QW_SIGN_LEN;
}
-static ssize_t os_desc_qw_sign_store(struct os_desc *os_desc, const char *page,
+static ssize_t os_desc_qw_sign_store(struct config_item *item, const char *page,
size_t len)
{
- struct gadget_info *gi;
+ struct gadget_info *gi = os_desc_item_to_gadget_info(item);
int res, l;
- gi = to_gadget_info(os_desc->group.cg_item.ci_parent);
l = min((int)len, OS_STRING_QW_SIGN_LEN >> 1);
if (page[l - 1] == '\n')
--l;
@@ -856,15 +813,14 @@ static ssize_t os_desc_qw_sign_store(struct os_desc *os_desc, const char *page,
return res;
}
-static struct os_desc_attribute os_desc_qw_sign =
- __CONFIGFS_ATTR(qw_sign, S_IRUGO | S_IWUSR,
- os_desc_qw_sign_show,
- os_desc_qw_sign_store);
+CONFIGFS_ATTR(os_desc_, use);
+CONFIGFS_ATTR(os_desc_, b_vendor_code);
+CONFIGFS_ATTR(os_desc_, qw_sign);
static struct configfs_attribute *os_desc_attrs[] = {
- &os_desc_use.attr,
- &os_desc_b_vendor_code.attr,
- &os_desc_qw_sign.attr,
+ &os_desc_attr_use,
+ &os_desc_attr_b_vendor_code,
+ &os_desc_attr_qw_sign,
NULL,
};
@@ -927,8 +883,6 @@ static int os_desc_unlink(struct config_item *os_desc_ci,
static struct configfs_item_operations os_desc_ops = {
.release = os_desc_attr_release,
- .show_attribute = os_desc_attr_show,
- .store_attribute = os_desc_attr_store,
.allow_link = os_desc_link,
.drop_link = os_desc_unlink,
};
@@ -939,28 +893,21 @@ static struct config_item_type os_desc_type = {
.ct_owner = THIS_MODULE,
};
-CONFIGFS_ATTR_STRUCT(usb_os_desc);
-CONFIGFS_ATTR_OPS(usb_os_desc);
-
-
static inline struct usb_os_desc_ext_prop
*to_usb_os_desc_ext_prop(struct config_item *item)
{
return container_of(item, struct usb_os_desc_ext_prop, item);
}
-CONFIGFS_ATTR_STRUCT(usb_os_desc_ext_prop);
-CONFIGFS_ATTR_OPS(usb_os_desc_ext_prop);
-
-static ssize_t ext_prop_type_show(struct usb_os_desc_ext_prop *ext_prop,
- char *page)
+static ssize_t ext_prop_type_show(struct config_item *item, char *page)
{
- return sprintf(page, "%d", ext_prop->type);
+ return sprintf(page, "%d", to_usb_os_desc_ext_prop(item)->type);
}
-static ssize_t ext_prop_type_store(struct usb_os_desc_ext_prop *ext_prop,
+static ssize_t ext_prop_type_store(struct config_item *item,
const char *page, size_t len)
{
+ struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item);
struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent);
u8 type;
int ret;
@@ -998,9 +945,9 @@ end:
return ret;
}
-static ssize_t ext_prop_data_show(struct usb_os_desc_ext_prop *ext_prop,
- char *page)
+static ssize_t ext_prop_data_show(struct config_item *item, char *page)
{
+ struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item);
int len = ext_prop->data_len;
if (ext_prop->type == USB_EXT_PROP_UNICODE ||
@@ -1012,9 +959,10 @@ static ssize_t ext_prop_data_show(struct usb_os_desc_ext_prop *ext_prop,
return len;
}
-static ssize_t ext_prop_data_store(struct usb_os_desc_ext_prop *ext_prop,
+static ssize_t ext_prop_data_store(struct config_item *item,
const char *page, size_t len)
{
+ struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item);
struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent);
char *new_data;
size_t ret_len = len;
@@ -1045,17 +993,12 @@ static ssize_t ext_prop_data_store(struct usb_os_desc_ext_prop *ext_prop,
return ret_len;
}
-static struct usb_os_desc_ext_prop_attribute ext_prop_type =
- __CONFIGFS_ATTR(type, S_IRUGO | S_IWUSR,
- ext_prop_type_show, ext_prop_type_store);
-
-static struct usb_os_desc_ext_prop_attribute ext_prop_data =
- __CONFIGFS_ATTR(data, S_IRUGO | S_IWUSR,
- ext_prop_data_show, ext_prop_data_store);
+CONFIGFS_ATTR(ext_prop_, type);
+CONFIGFS_ATTR(ext_prop_, data);
static struct configfs_attribute *ext_prop_attrs[] = {
- &ext_prop_type.attr,
- &ext_prop_data.attr,
+ &ext_prop_attr_type,
+ &ext_prop_attr_data,
NULL,
};
@@ -1068,8 +1011,6 @@ static void usb_os_desc_ext_prop_release(struct config_item *item)
static struct configfs_item_operations ext_prop_ops = {
.release = usb_os_desc_ext_prop_release,
- .show_attribute = usb_os_desc_ext_prop_attr_show,
- .store_attribute = usb_os_desc_ext_prop_attr_store,
};
static struct config_item *ext_prop_make(
@@ -1138,21 +1079,17 @@ static struct configfs_group_operations interf_grp_ops = {
.drop_item = &ext_prop_drop,
};
-static struct configfs_item_operations interf_item_ops = {
- .show_attribute = usb_os_desc_attr_show,
- .store_attribute = usb_os_desc_attr_store,
-};
-
-static ssize_t interf_grp_compatible_id_show(struct usb_os_desc *desc,
+static ssize_t interf_grp_compatible_id_show(struct config_item *item,
char *page)
{
- memcpy(page, desc->ext_compat_id, 8);
+ memcpy(page, to_usb_os_desc(item)->ext_compat_id, 8);
return 8;
}
-static ssize_t interf_grp_compatible_id_store(struct usb_os_desc *desc,
+static ssize_t interf_grp_compatible_id_store(struct config_item *item,
const char *page, size_t len)
{
+ struct usb_os_desc *desc = to_usb_os_desc(item);
int l;
l = min_t(int, 8, len);
@@ -1168,21 +1105,17 @@ static ssize_t interf_grp_compatible_id_store(struct usb_os_desc *desc,
return len;
}
-static struct usb_os_desc_attribute interf_grp_attr_compatible_id =
- __CONFIGFS_ATTR(compatible_id, S_IRUGO | S_IWUSR,
- interf_grp_compatible_id_show,
- interf_grp_compatible_id_store);
-
-static ssize_t interf_grp_sub_compatible_id_show(struct usb_os_desc *desc,
+static ssize_t interf_grp_sub_compatible_id_show(struct config_item *item,
char *page)
{
- memcpy(page, desc->ext_compat_id + 8, 8);
+ memcpy(page, to_usb_os_desc(item)->ext_compat_id + 8, 8);
return 8;
}
-static ssize_t interf_grp_sub_compatible_id_store(struct usb_os_desc *desc,
+static ssize_t interf_grp_sub_compatible_id_store(struct config_item *item,
const char *page, size_t len)
{
+ struct usb_os_desc *desc = to_usb_os_desc(item);
int l;
l = min_t(int, 8, len);
@@ -1198,14 +1131,12 @@ static ssize_t interf_grp_sub_compatible_id_store(struct usb_os_desc *desc,
return len;
}
-static struct usb_os_desc_attribute interf_grp_attr_sub_compatible_id =
- __CONFIGFS_ATTR(sub_compatible_id, S_IRUGO | S_IWUSR,
- interf_grp_sub_compatible_id_show,
- interf_grp_sub_compatible_id_store);
+CONFIGFS_ATTR(interf_grp_, compatible_id);
+CONFIGFS_ATTR(interf_grp_, sub_compatible_id);
static struct configfs_attribute *interf_grp_attrs[] = {
- &interf_grp_attr_compatible_id.attr,
- &interf_grp_attr_sub_compatible_id.attr,
+ &interf_grp_attr_compatible_id,
+ &interf_grp_attr_sub_compatible_id,
NULL
};
@@ -1243,7 +1174,6 @@ int usb_os_desc_prepare_interf_dir(struct config_group *parent,
f_default_groups[0] = os_desc_group;
os_desc_group->default_groups = interface_groups;
- interface_type->ct_item_ops = &interf_item_ops;
interface_type->ct_group_ops = &interf_grp_ops;
interface_type->ct_attrs = interf_grp_attrs;
interface_type->ct_owner = owner;
@@ -1376,6 +1306,19 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
memcpy(cdev->qw_sign, gi->qw_sign, OS_STRING_QW_SIGN_LEN);
}
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc) {
+ ret = -ENOMEM;
+ goto err_comp_cleanup;
+ }
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* Go through all configs, attach all functions */
list_for_each_entry(c, &gi->cdev.configs, list) {
struct config_usb_cfg *cfg;
@@ -1383,6 +1326,9 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
struct usb_function *tmp;
struct gadget_config_name *cn;
+ if (gadget_is_otg(gadget))
+ c->descriptors = otg_desc;
+
cfg = container_of(c, struct config_usb_cfg, c);
if (!list_empty(&cfg->string_list)) {
i = 0;
@@ -1437,6 +1383,8 @@ static void configfs_composite_unbind(struct usb_gadget *gadget)
cdev = get_gadget_data(gadget);
gi = container_of(cdev, struct gadget_info, cdev);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
purge_configs_funcs(gi);
composite_dev_cleanup(cdev);
usb_ep_autoconfig_reset(cdev->gadget);
@@ -1510,12 +1458,6 @@ static struct config_group *gadgets_make(
if (!gi->composite.gadget_driver.function)
goto err;
-#ifdef CONFIG_USB_OTG
- gi->otg.bLength = sizeof(struct usb_otg_descriptor);
- gi->otg.bDescriptorType = USB_DT_OTG;
- gi->otg.bmAttributes = USB_OTG_SRP | USB_OTG_HNP;
-#endif
-
config_group_init_type_name(&gi->group, name,
&gadget_root_type);
return &gi->group;
diff --git a/kernel/drivers/usb/gadget/epautoconf.c b/kernel/drivers/usb/gadget/epautoconf.c
index 0567cca14..30fdab0ae 100644
--- a/kernel/drivers/usb/gadget/epautoconf.c
+++ b/kernel/drivers/usb/gadget/epautoconf.c
@@ -20,186 +20,6 @@
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
-#include "gadget_chips.h"
-
-/*
- * This should work with endpoints from controller drivers sharing the
- * same endpoint naming convention. By example:
- *
- * - ep1, ep2, ... address is fixed, not direction or type
- * - ep1in, ep2out, ... address and direction are fixed, not type
- * - ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
- * - ep1in-bulk, ep2out-iso, ... all three are fixed
- * - ep-* ... no functionality restrictions
- *
- * Type suffixes are "-bulk", "-iso", or "-int". Numbers are decimal.
- * Less common restrictions are implied by gadget_is_*().
- *
- * NOTE: each endpoint is unidirectional, as specified by its USB
- * descriptor; and isn't specific to a configuration or altsetting.
- */
-static int
-ep_matches (
- struct usb_gadget *gadget,
- struct usb_ep *ep,
- struct usb_endpoint_descriptor *desc,
- struct usb_ss_ep_comp_descriptor *ep_comp
-)
-{
- u8 type;
- const char *tmp;
- u16 max;
-
- int num_req_streams = 0;
-
- /* endpoint already claimed? */
- if (NULL != ep->driver_data)
- return 0;
-
- /* only support ep0 for portable CONTROL traffic */
- type = usb_endpoint_type(desc);
- if (USB_ENDPOINT_XFER_CONTROL == type)
- return 0;
-
- /* some other naming convention */
- if ('e' != ep->name[0])
- return 0;
-
- /* type-restriction: "-iso", "-bulk", or "-int".
- * direction-restriction: "in", "out".
- */
- if ('-' != ep->name[2]) {
- tmp = strrchr (ep->name, '-');
- if (tmp) {
- switch (type) {
- case USB_ENDPOINT_XFER_INT:
- /* bulk endpoints handle interrupt transfers,
- * except the toggle-quirky iso-synch kind
- */
- if ('s' == tmp[2]) // == "-iso"
- return 0;
- /* for now, avoid PXA "interrupt-in";
- * it's documented as never using DATA1.
- */
- if (gadget_is_pxa (gadget)
- && 'i' == tmp [1])
- return 0;
- break;
- case USB_ENDPOINT_XFER_BULK:
- if ('b' != tmp[1]) // != "-bulk"
- return 0;
- break;
- case USB_ENDPOINT_XFER_ISOC:
- if ('s' != tmp[2]) // != "-iso"
- return 0;
- }
- } else {
- tmp = ep->name + strlen (ep->name);
- }
-
- /* direction-restriction: "..in-..", "out-.." */
- tmp--;
- if (!isdigit (*tmp)) {
- if (desc->bEndpointAddress & USB_DIR_IN) {
- if ('n' != *tmp)
- return 0;
- } else {
- if ('t' != *tmp)
- return 0;
- }
- }
- }
-
- /*
- * Get the number of required streams from the EP companion
- * descriptor and see if the EP matches it
- */
- if (usb_endpoint_xfer_bulk(desc)) {
- if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
- num_req_streams = ep_comp->bmAttributes & 0x1f;
- if (num_req_streams > ep->max_streams)
- return 0;
- }
-
- }
-
- /*
- * If the protocol driver hasn't yet decided on wMaxPacketSize
- * and wants to know the maximum possible, provide the info.
- */
- if (desc->wMaxPacketSize == 0)
- desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
-
- /* endpoint maxpacket size is an input parameter, except for bulk
- * where it's an output parameter representing the full speed limit.
- * the usb spec fixes high speed bulk maxpacket at 512 bytes.
- */
- max = 0x7ff & usb_endpoint_maxp(desc);
- switch (type) {
- case USB_ENDPOINT_XFER_INT:
- /* INT: limit 64 bytes full speed, 1024 high/super speed */
- if (!gadget_is_dualspeed(gadget) && max > 64)
- return 0;
- /* FALLTHROUGH */
-
- case USB_ENDPOINT_XFER_ISOC:
- /* ISO: limit 1023 bytes full speed, 1024 high/super speed */
- if (ep->maxpacket_limit < max)
- return 0;
- if (!gadget_is_dualspeed(gadget) && max > 1023)
- return 0;
-
- /* BOTH: "high bandwidth" works only at high speed */
- if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
- if (!gadget_is_dualspeed(gadget))
- return 0;
- /* configure your hardware with enough buffering!! */
- }
- break;
- }
-
- /* MATCH!! */
-
- /* report address */
- desc->bEndpointAddress &= USB_DIR_IN;
- if (isdigit (ep->name [2])) {
- u8 num = simple_strtoul (&ep->name [2], NULL, 10);
- desc->bEndpointAddress |= num;
- } else if (desc->bEndpointAddress & USB_DIR_IN) {
- if (++gadget->in_epnum > 15)
- return 0;
- desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
- } else {
- if (++gadget->out_epnum > 15)
- return 0;
- desc->bEndpointAddress |= gadget->out_epnum;
- }
-
- /* report (variable) full speed bulk maxpacket */
- if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
- int size = ep->maxpacket_limit;
-
- /* min() doesn't work on bitfields with gcc-3.5 */
- if (size > 64)
- size = 64;
- desc->wMaxPacketSize = cpu_to_le16(size);
- }
- ep->address = desc->bEndpointAddress;
- return 1;
-}
-
-static struct usb_ep *
-find_ep (struct usb_gadget *gadget, const char *name)
-{
- struct usb_ep *ep;
-
- list_for_each_entry (ep, &gadget->ep_list, ep_list) {
- if (0 == strcmp (ep->name, name))
- return ep;
- }
- return NULL;
-}
-
/**
* usb_ep_autoconfig_ss() - choose an endpoint matching the ep
* descriptor and ep companion descriptor
@@ -233,14 +53,14 @@ find_ep (struct usb_gadget *gadget, const char *name)
* the restrictions that may apply. Some combinations of driver
* and hardware won't be able to autoconfigure.
*
- * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * On success, this returns an claimed usb_ep, and modifies the endpoint
* descriptor bEndpointAddress. For bulk endpoints, the wMaxPacket value
* is initialized as if the endpoint were used at full speed and
* the bmAttribute field in the ep companion descriptor is
* updated with the assigned number of streams if it is
* different from the original value. To prevent the endpoint
- * from being returned by a later autoconfig call, claim it by
- * assigning ep->driver_data to some non-null value.
+ * from being returned by a later autoconfig call, claims it by
+ * assigning ep->claimed to true.
*
* On failure, this returns a null endpoint descriptor.
*/
@@ -255,64 +75,58 @@ struct usb_ep *usb_ep_autoconfig_ss(
type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
- /* First, apply chip-specific "best usage" knowledge.
- * This might make a good usb_gadget_ops hook ...
- */
- if (gadget_is_net2280 (gadget) && type == USB_ENDPOINT_XFER_INT) {
- /* ep-e, ep-f are PIO with only 64 byte fifos */
- ep = find_ep (gadget, "ep-e");
- if (ep && ep_matches(gadget, ep, desc, ep_comp))
+ if (gadget->ops->match_ep) {
+ ep = gadget->ops->match_ep(gadget, desc, ep_comp);
+ if (ep)
goto found_ep;
- ep = find_ep (gadget, "ep-f");
- if (ep && ep_matches(gadget, ep, desc, ep_comp))
- goto found_ep;
-
- } else if (gadget_is_goku (gadget)) {
- if (USB_ENDPOINT_XFER_INT == type) {
- /* single buffering is enough */
- ep = find_ep(gadget, "ep3-bulk");
- if (ep && ep_matches(gadget, ep, desc, ep_comp))
- goto found_ep;
- } else if (USB_ENDPOINT_XFER_BULK == type
- && (USB_DIR_IN & desc->bEndpointAddress)) {
- /* DMA may be available */
- ep = find_ep(gadget, "ep2-bulk");
- if (ep && ep_matches(gadget, ep, desc,
- ep_comp))
- goto found_ep;
- }
-
-#ifdef CONFIG_BLACKFIN
- } else if (gadget_is_musbhdrc(gadget)) {
- if ((USB_ENDPOINT_XFER_BULK == type) ||
- (USB_ENDPOINT_XFER_ISOC == type)) {
- if (USB_DIR_IN & desc->bEndpointAddress)
- ep = find_ep (gadget, "ep5in");
- else
- ep = find_ep (gadget, "ep6out");
- } else if (USB_ENDPOINT_XFER_INT == type) {
- if (USB_DIR_IN & desc->bEndpointAddress)
- ep = find_ep(gadget, "ep1in");
- else
- ep = find_ep(gadget, "ep2out");
- } else
- ep = NULL;
- if (ep && ep_matches(gadget, ep, desc, ep_comp))
- goto found_ep;
-#endif
}
/* Second, look at endpoints until an unclaimed one looks usable */
list_for_each_entry (ep, &gadget->ep_list, ep_list) {
- if (ep_matches(gadget, ep, desc, ep_comp))
+ if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
goto found_ep;
}
/* Fail */
return NULL;
found_ep:
+
+ /*
+ * If the protocol driver hasn't yet decided on wMaxPacketSize
+ * and wants to know the maximum possible, provide the info.
+ */
+ if (desc->wMaxPacketSize == 0)
+ desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
+
+ /* report address */
+ desc->bEndpointAddress &= USB_DIR_IN;
+ if (isdigit(ep->name[2])) {
+ u8 num = simple_strtoul(&ep->name[2], NULL, 10);
+ desc->bEndpointAddress |= num;
+ } else if (desc->bEndpointAddress & USB_DIR_IN) {
+ if (++gadget->in_epnum > 15)
+ return NULL;
+ desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
+ } else {
+ if (++gadget->out_epnum > 15)
+ return NULL;
+ desc->bEndpointAddress |= gadget->out_epnum;
+ }
+
+ /* report (variable) full speed bulk maxpacket */
+ if ((type == USB_ENDPOINT_XFER_BULK) && !ep_comp) {
+ int size = ep->maxpacket_limit;
+
+ /* min() doesn't work on bitfields with gcc-3.5 */
+ if (size > 64)
+ size = 64;
+ desc->wMaxPacketSize = cpu_to_le16(size);
+ }
+
+ ep->address = desc->bEndpointAddress;
ep->desc = NULL;
ep->comp_desc = NULL;
+ ep->claimed = true;
return ep;
}
EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -340,11 +154,11 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
* USB controller, and it can't know all the restrictions that may apply.
* Some combinations of driver and hardware won't be able to autoconfigure.
*
- * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * On success, this returns an claimed usb_ep, and modifies the endpoint
* descriptor bEndpointAddress. For bulk endpoints, the wMaxPacket value
* is initialized as if the endpoint were used at full speed. To prevent
- * the endpoint from being returned by a later autoconfig call, claim it
- * by assigning ep->driver_data to some non-null value.
+ * the endpoint from being returned by a later autoconfig call, claims it
+ * by assigning ep->claimed to true.
*
* On failure, this returns a null endpoint descriptor.
*/
@@ -358,12 +172,29 @@ struct usb_ep *usb_ep_autoconfig(
EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
/**
+ * usb_ep_autoconfig_release - releases endpoint and set it to initial state
+ * @ep: endpoint which should be released
+ *
+ * This function can be used during function bind for endpoints obtained
+ * from usb_ep_autoconfig(). It unclaims endpoint claimed by
+ * usb_ep_autoconfig() to make it available for other functions. Endpoint
+ * which was released is no longer invalid and shouldn't be used in
+ * context of function which released it.
+ */
+void usb_ep_autoconfig_release(struct usb_ep *ep)
+{
+ ep->claimed = false;
+ ep->driver_data = NULL;
+}
+EXPORT_SYMBOL_GPL(usb_ep_autoconfig_release);
+
+/**
* usb_ep_autoconfig_reset - reset endpoint autoconfig state
* @gadget: device for which autoconfig state will be reset
*
* Use this for devices where one configuration may need to assign
* endpoint resources very differently from the next one. It clears
- * state such as ep->driver_data and the record of assigned endpoints
+ * state such as ep->claimed and the record of assigned endpoints
* used by usb_ep_autoconfig().
*/
void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
@@ -371,6 +202,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
struct usb_ep *ep;
list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+ ep->claimed = false;
ep->driver_data = NULL;
}
gadget->in_epnum = 0;
diff --git a/kernel/drivers/usb/gadget/function/f_acm.c b/kernel/drivers/usb/gadget/function/f_acm.c
index aad8165e9..2fa1e80a3 100644
--- a/kernel/drivers/usb/gadget/function/f_acm.c
+++ b/kernel/drivers/usb/gadget/function/f_acm.c
@@ -21,7 +21,6 @@
#include <linux/err.h>
#include "u_serial.h"
-#include "gadget_chips.h"
/*
@@ -429,21 +428,18 @@ static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* we know alt == 0, so this is an activation or a reset */
if (intf == acm->ctrl_id) {
- if (acm->notify->driver_data) {
- dev_vdbg(&cdev->gadget->dev,
- "reset acm control interface %d\n", intf);
- usb_ep_disable(acm->notify);
- }
+ dev_vdbg(&cdev->gadget->dev,
+ "reset acm control interface %d\n", intf);
+ usb_ep_disable(acm->notify);
if (!acm->notify->desc)
if (config_ep_by_speed(cdev->gadget, f, acm->notify))
return -EINVAL;
usb_ep_enable(acm->notify);
- acm->notify->driver_data = acm;
} else if (intf == acm->data_id) {
- if (acm->port.in->driver_data) {
+ if (acm->notify->enabled) {
dev_dbg(&cdev->gadget->dev,
"reset acm ttyGS%d\n", acm->port_num);
gserial_disconnect(&acm->port);
@@ -476,7 +472,6 @@ static void acm_disable(struct usb_function *f)
dev_dbg(&cdev->gadget->dev, "acm ttyGS%d deactivated\n", acm->port_num);
gserial_disconnect(&acm->port);
usb_ep_disable(acm->notify);
- acm->notify->driver_data = NULL;
}
/*-------------------------------------------------------------------------*/
@@ -656,19 +651,16 @@ acm_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
acm->port.in = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_out_desc);
if (!ep)
goto fail;
acm->port.out = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &acm_fs_notify_desc);
if (!ep)
goto fail;
acm->notify = ep;
- ep->driver_data = cdev; /* claim */
/* allocate notification */
acm->notify_req = gs_alloc_req(ep,
@@ -710,14 +702,6 @@ fail:
if (acm->notify_req)
gs_free_req(acm->notify, acm->notify_req);
- /* we might as well release our claims on endpoints */
- if (acm->notify)
- acm->notify->driver_data = NULL;
- if (acm->port.out)
- acm->port.out->driver_data = NULL;
- if (acm->port.in)
- acm->port.in->driver_data = NULL;
-
ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
return status;
@@ -777,21 +761,6 @@ static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_serial_opts);
-static ssize_t f_acm_attr_show(struct config_item *item,
- struct configfs_attribute *attr,
- char *page)
-{
- struct f_serial_opts *opts = to_f_serial_opts(item);
- struct f_serial_opts_attribute *f_serial_opts_attr =
- container_of(attr, struct f_serial_opts_attribute, attr);
- ssize_t ret = 0;
-
- if (f_serial_opts_attr->show)
- ret = f_serial_opts_attr->show(opts, page);
- return ret;
-}
-
static void acm_attr_release(struct config_item *item)
{
struct f_serial_opts *opts = to_f_serial_opts(item);
@@ -801,20 +770,17 @@ static void acm_attr_release(struct config_item *item)
static struct configfs_item_operations acm_item_ops = {
.release = acm_attr_release,
- .show_attribute = f_acm_attr_show,
};
-static ssize_t f_acm_port_num_show(struct f_serial_opts *opts, char *page)
+static ssize_t f_acm_port_num_show(struct config_item *item, char *page)
{
- return sprintf(page, "%u\n", opts->port_num);
+ return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num);
}
-static struct f_serial_opts_attribute f_acm_port_num =
- __CONFIGFS_ATTR_RO(port_num, f_acm_port_num_show);
-
+CONFIGFS_ATTR_RO(f_acm_port_, num);
static struct configfs_attribute *acm_attrs[] = {
- &f_acm_port_num.attr,
+ &f_acm_port_attr_num,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_ecm.c b/kernel/drivers/usb/gadget/function/f_ecm.c
index 798760fa7..7ad60ee41 100644
--- a/kernel/drivers/usb/gadget/function/f_ecm.c
+++ b/kernel/drivers/usb/gadget/function/f_ecm.c
@@ -541,24 +541,21 @@ static int ecm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (alt != 0)
goto fail;
- if (ecm->notify->driver_data) {
- VDBG(cdev, "reset ecm control %d\n", intf);
- usb_ep_disable(ecm->notify);
- }
+ VDBG(cdev, "reset ecm control %d\n", intf);
+ usb_ep_disable(ecm->notify);
if (!(ecm->notify->desc)) {
VDBG(cdev, "init ecm ctrl %d\n", intf);
if (config_ep_by_speed(cdev->gadget, f, ecm->notify))
goto fail;
}
usb_ep_enable(ecm->notify);
- ecm->notify->driver_data = ecm;
/* Data interface has two altsettings, 0 and 1 */
} else if (intf == ecm->data_id) {
if (alt > 1)
goto fail;
- if (ecm->port.in_ep->driver_data) {
+ if (ecm->port.in_ep->enabled) {
DBG(cdev, "reset ecm\n");
gether_disconnect(&ecm->port);
}
@@ -585,8 +582,8 @@ static int ecm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* Enable zlps by default for ECM conformance;
* override for musb_hdrc (avoids txdma ovhead).
*/
- ecm->port.is_zlp_ok = !(gadget_is_musbhdrc(cdev->gadget)
- );
+ ecm->port.is_zlp_ok =
+ gadget_is_zlp_supported(cdev->gadget);
ecm->port.cdc_filter = DEFAULT_FILTER;
DBG(cdev, "activate ecm\n");
net = gether_connect(&ecm->port);
@@ -618,7 +615,7 @@ static int ecm_get_alt(struct usb_function *f, unsigned intf)
if (intf == ecm->ctrl_id)
return 0;
- return ecm->port.in_ep->driver_data ? 1 : 0;
+ return ecm->port.in_ep->enabled ? 1 : 0;
}
static void ecm_disable(struct usb_function *f)
@@ -628,14 +625,11 @@ static void ecm_disable(struct usb_function *f)
DBG(cdev, "ecm deactivated\n");
- if (ecm->port.in_ep->driver_data)
+ if (ecm->port.in_ep->enabled)
gether_disconnect(&ecm->port);
- if (ecm->notify->driver_data) {
- usb_ep_disable(ecm->notify);
- ecm->notify->driver_data = NULL;
- ecm->notify->desc = NULL;
- }
+ usb_ep_disable(ecm->notify);
+ ecm->notify->desc = NULL;
}
/*-------------------------------------------------------------------------*/
@@ -750,13 +744,11 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
ecm->port.in_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_ecm_out_desc);
if (!ep)
goto fail;
ecm->port.out_ep = ep;
- ep->driver_data = cdev; /* claim */
/* NOTE: a status/notification endpoint is *OPTIONAL* but we
* don't treat it that way. It's simpler, and some newer CDC
@@ -766,7 +758,6 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
ecm->notify = ep;
- ep->driver_data = cdev; /* claim */
status = -ENOMEM;
@@ -820,14 +811,6 @@ fail:
usb_ep_free_request(ecm->notify, ecm->notify_req);
}
- /* we might as well release our claims on endpoints */
- if (ecm->notify)
- ecm->notify->driver_data = NULL;
- if (ecm->port.out_ep)
- ecm->port.out_ep->driver_data = NULL;
- if (ecm->port.in_ep)
- ecm->port.in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -855,10 +838,10 @@ USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(ecm);
USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(ecm);
static struct configfs_attribute *ecm_attrs[] = {
- &f_ecm_opts_dev_addr.attr,
- &f_ecm_opts_host_addr.attr,
- &f_ecm_opts_qmult.attr,
- &f_ecm_opts_ifname.attr,
+ &ecm_opts_attr_dev_addr,
+ &ecm_opts_attr_host_addr,
+ &ecm_opts_attr_qmult,
+ &ecm_opts_attr_ifname,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_eem.c b/kernel/drivers/usb/gadget/function/f_eem.c
index c9e90de5b..cad35a502 100644
--- a/kernel/drivers/usb/gadget/function/f_eem.c
+++ b/kernel/drivers/usb/gadget/function/f_eem.c
@@ -195,11 +195,8 @@ static int eem_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
goto fail;
if (intf == eem->ctrl_id) {
-
- if (eem->port.in_ep->driver_data) {
- DBG(cdev, "reset eem\n");
- gether_disconnect(&eem->port);
- }
+ DBG(cdev, "reset eem\n");
+ gether_disconnect(&eem->port);
if (!eem->port.in_ep->desc || !eem->port.out_ep->desc) {
DBG(cdev, "init eem\n");
@@ -237,7 +234,7 @@ static void eem_disable(struct usb_function *f)
DBG(cdev, "eem deactivated\n");
- if (eem->port.in_ep->driver_data)
+ if (eem->port.in_ep->enabled)
gether_disconnect(&eem->port);
}
@@ -293,13 +290,11 @@ static int eem_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
eem->port.in_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &eem_fs_out_desc);
if (!ep)
goto fail;
eem->port.out_ep = ep;
- ep->driver_data = cdev; /* claim */
status = -ENOMEM;
@@ -325,11 +320,6 @@ static int eem_bind(struct usb_configuration *c, struct usb_function *f)
return 0;
fail:
- if (eem->port.out_ep)
- eem->port.out_ep->driver_data = NULL;
- if (eem->port.in_ep)
- eem->port.in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -555,10 +545,10 @@ USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(eem);
USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(eem);
static struct configfs_attribute *eem_attrs[] = {
- &f_eem_opts_dev_addr.attr,
- &f_eem_opts_host_addr.attr,
- &f_eem_opts_qmult.attr,
- &f_eem_opts_ifname.attr,
+ &eem_opts_attr_dev_addr,
+ &eem_opts_attr_host_addr,
+ &eem_opts_attr_qmult,
+ &eem_opts_attr_ifname,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_fs.c b/kernel/drivers/usb/gadget/function/f_fs.c
index f51bb8939..4d475284a 100644
--- a/kernel/drivers/usb/gadget/function/f_fs.c
+++ b/kernel/drivers/usb/gadget/function/f_fs.c
@@ -423,7 +423,7 @@ static ssize_t __ffs_ep0_read_events(struct ffs_data *ffs, char __user *buf,
spin_unlock_irq(&ffs->ev.waitq.lock);
mutex_unlock(&ffs->mutex);
- return unlikely(__copy_to_user(buf, events, size)) ? -EFAULT : size;
+ return unlikely(copy_to_user(buf, events, size)) ? -EFAULT : size;
}
static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
@@ -513,7 +513,7 @@ static ssize_t ffs_ep0_read(struct file *file, char __user *buf,
/* unlocks spinlock */
ret = __ffs_ep0_queue_wait(ffs, data, len);
- if (likely(ret > 0) && unlikely(__copy_to_user(buf, data, len)))
+ if (likely(ret > 0) && unlikely(copy_to_user(buf, data, len)))
ret = -EFAULT;
goto done_mutex;
@@ -1405,7 +1405,7 @@ static void ffs_data_put(struct ffs_data *ffs)
pr_info("%s(): freeing\n", __func__);
ffs_data_clear(ffs);
BUG_ON(waitqueue_active(&ffs->ev.waitq) ||
- swaitqueue_active(&ffs->ep0req_completion.wait));
+ swait_active(&ffs->ep0req_completion.wait));
kfree(ffs->dev_name);
kfree(ffs);
}
@@ -2897,11 +2897,17 @@ static int ffs_func_bind(struct usb_configuration *c,
struct usb_function *f)
{
struct f_fs_opts *ffs_opts = ffs_do_functionfs_bind(f, c);
+ struct ffs_function *func = ffs_func_from_usb(f);
+ int ret;
if (IS_ERR(ffs_opts))
return PTR_ERR(ffs_opts);
- return _ffs_func_bind(c, f);
+ ret = _ffs_func_bind(c, f);
+ if (ret && !--ffs_opts->refcnt)
+ functionfs_unbind(func->ffs);
+
+ return ret;
}
@@ -3487,7 +3493,7 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len)
if (unlikely(!data))
return ERR_PTR(-ENOMEM);
- if (unlikely(__copy_from_user(data, buf, len))) {
+ if (unlikely(copy_from_user(data, buf, len))) {
kfree(data);
return ERR_PTR(-EFAULT);
}
diff --git a/kernel/drivers/usb/gadget/function/f_hid.c b/kernel/drivers/usb/gadget/function/f_hid.c
index f7f35a36c..99285b416 100644
--- a/kernel/drivers/usb/gadget/function/f_hid.c
+++ b/kernel/drivers/usb/gadget/function/f_hid.c
@@ -492,10 +492,7 @@ static void hidg_disable(struct usb_function *f)
struct f_hidg_req_list *list, *next;
usb_ep_disable(hidg->in_ep);
- hidg->in_ep->driver_data = NULL;
-
usb_ep_disable(hidg->out_ep);
- hidg->out_ep->driver_data = NULL;
list_for_each_entry_safe(list, next, &hidg->completed_out_req, list) {
list_del(&list->list);
@@ -513,8 +510,7 @@ static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (hidg->in_ep != NULL) {
/* restart endpoint */
- if (hidg->in_ep->driver_data != NULL)
- usb_ep_disable(hidg->in_ep);
+ usb_ep_disable(hidg->in_ep);
status = config_ep_by_speed(f->config->cdev->gadget, f,
hidg->in_ep);
@@ -533,8 +529,7 @@ static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (hidg->out_ep != NULL) {
/* restart endpoint */
- if (hidg->out_ep->driver_data != NULL)
- usb_ep_disable(hidg->out_ep);
+ usb_ep_disable(hidg->out_ep);
status = config_ep_by_speed(f->config->cdev->gadget, f,
hidg->out_ep);
@@ -566,7 +561,6 @@ static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
hidg->out_ep->name, status);
} else {
usb_ep_disable(hidg->out_ep);
- hidg->out_ep->driver_data = NULL;
status = -ENOMEM;
goto fail;
}
@@ -614,13 +608,11 @@ static int hidg_bind(struct usb_configuration *c, struct usb_function *f)
ep = usb_ep_autoconfig(c->cdev->gadget, &hidg_fs_in_ep_desc);
if (!ep)
goto fail;
- ep->driver_data = c->cdev; /* claim */
hidg->in_ep = ep;
ep = usb_ep_autoconfig(c->cdev->gadget, &hidg_fs_out_ep_desc);
if (!ep)
goto fail;
- ep->driver_data = c->cdev; /* claim */
hidg->out_ep = ep;
/* preallocate request and buffer */
@@ -699,6 +691,10 @@ static inline int hidg_get_minor(void)
int ret;
ret = ida_simple_get(&hidg_ida, 0, 0, GFP_KERNEL);
+ if (ret >= HIDG_MINORS) {
+ ida_simple_remove(&hidg_ida, ret);
+ ret = -ENODEV;
+ }
return ret;
}
@@ -709,9 +705,6 @@ static inline struct f_hid_opts *to_f_hid_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_hid_opts);
-CONFIGFS_ATTR_OPS(f_hid_opts);
-
static void hid_attr_release(struct config_item *item)
{
struct f_hid_opts *opts = to_f_hid_opts(item);
@@ -721,13 +714,12 @@ static void hid_attr_release(struct config_item *item)
static struct configfs_item_operations hidg_item_ops = {
.release = hid_attr_release,
- .show_attribute = f_hid_opts_attr_show,
- .store_attribute = f_hid_opts_attr_store,
};
#define F_HID_OPT(name, prec, limit) \
-static ssize_t f_hid_opts_##name##_show(struct f_hid_opts *opts, char *page)\
+static ssize_t f_hid_opts_##name##_show(struct config_item *item, char *page)\
{ \
+ struct f_hid_opts *opts = to_f_hid_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -737,9 +729,10 @@ static ssize_t f_hid_opts_##name##_show(struct f_hid_opts *opts, char *page)\
return result; \
} \
\
-static ssize_t f_hid_opts_##name##_store(struct f_hid_opts *opts, \
+static ssize_t f_hid_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_hid_opts *opts = to_f_hid_opts(item); \
int ret; \
u##prec num; \
\
@@ -765,16 +758,15 @@ end: \
return ret; \
} \
\
-static struct f_hid_opts_attribute f_hid_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, f_hid_opts_##name##_show,\
- f_hid_opts_##name##_store)
+CONFIGFS_ATTR(f_hid_opts_, name)
F_HID_OPT(subclass, 8, 255);
F_HID_OPT(protocol, 8, 255);
F_HID_OPT(report_length, 16, 65535);
-static ssize_t f_hid_opts_report_desc_show(struct f_hid_opts *opts, char *page)
+static ssize_t f_hid_opts_report_desc_show(struct config_item *item, char *page)
{
+ struct f_hid_opts *opts = to_f_hid_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -785,9 +777,10 @@ static ssize_t f_hid_opts_report_desc_show(struct f_hid_opts *opts, char *page)
return result;
}
-static ssize_t f_hid_opts_report_desc_store(struct f_hid_opts *opts,
+static ssize_t f_hid_opts_report_desc_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_hid_opts *opts = to_f_hid_opts(item);
int ret = -EBUSY;
char *d;
@@ -814,16 +807,13 @@ end:
return ret;
}
-static struct f_hid_opts_attribute f_hid_opts_report_desc =
- __CONFIGFS_ATTR(report_desc, S_IRUGO | S_IWUSR,
- f_hid_opts_report_desc_show,
- f_hid_opts_report_desc_store);
+CONFIGFS_ATTR(f_hid_opts_, report_desc);
static struct configfs_attribute *hid_attrs[] = {
- &f_hid_opts_subclass.attr,
- &f_hid_opts_protocol.attr,
- &f_hid_opts_report_length.attr,
- &f_hid_opts_report_desc.attr,
+ &f_hid_opts_attr_subclass,
+ &f_hid_opts_attr_protocol,
+ &f_hid_opts_attr_report_length,
+ &f_hid_opts_attr_report_desc,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_loopback.c b/kernel/drivers/usb/gadget/function/f_loopback.c
index 39f49f1ad..ddc3aad88 100644
--- a/kernel/drivers/usb/gadget/function/f_loopback.c
+++ b/kernel/drivers/usb/gadget/function/f_loopback.c
@@ -28,17 +28,15 @@
* This takes messages of various sizes written OUT to a device, and loops
* them back so they can be read IN from it. It has been used by certain
* test applications. It supports limited testing of data queueing logic.
- *
- *
- * This is currently packaged as a configuration driver, which can't be
- * combined with other functions to make composite devices. However, it
- * can be combined with other independent configurations.
*/
struct f_loopback {
struct usb_function function;
struct usb_ep *in_ep;
struct usb_ep *out_ep;
+
+ unsigned qlen;
+ unsigned buflen;
};
static inline struct f_loopback *func_to_loop(struct usb_function *f)
@@ -46,13 +44,10 @@ static inline struct f_loopback *func_to_loop(struct usb_function *f)
return container_of(f, struct f_loopback, function);
}
-static unsigned qlen;
-static unsigned buflen;
-
/*-------------------------------------------------------------------------*/
static struct usb_interface_descriptor loopback_intf = {
- .bLength = sizeof loopback_intf,
+ .bLength = sizeof(loopback_intf),
.bDescriptorType = USB_DT_INTERFACE,
.bNumEndpoints = 2,
@@ -200,12 +195,10 @@ autoconf_fail:
f->name, cdev->gadget->name);
return -ENODEV;
}
- loop->in_ep->driver_data = cdev; /* claim */
loop->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_loop_sink_desc);
if (!loop->out_ep)
goto autoconf_fail;
- loop->out_ep->driver_data = cdev; /* claim */
/* support high speed hardware */
hs_loop_source_desc.bEndpointAddress =
@@ -250,22 +243,38 @@ static void loopback_complete(struct usb_ep *ep, struct usb_request *req)
int status = req->status;
switch (status) {
-
case 0: /* normal completion? */
if (ep == loop->out_ep) {
- req->zero = (req->actual < req->length);
- req->length = req->actual;
+ /*
+ * We received some data from the host so let's
+ * queue it so host can read the from our in ep
+ */
+ struct usb_request *in_req = req->context;
+
+ in_req->zero = (req->actual < req->length);
+ in_req->length = req->actual;
+ ep = loop->in_ep;
+ req = in_req;
+ } else {
+ /*
+ * We have just looped back a bunch of data
+ * to host. Now let's wait for some more data.
+ */
+ req = req->context;
+ ep = loop->out_ep;
}
- /* queue the buffer for some later OUT packet */
- req->length = buflen;
+ /* queue the buffer back to host or for next bunch of data */
status = usb_ep_queue(ep, req, GFP_ATOMIC);
- if (status == 0)
+ if (status == 0) {
return;
+ } else {
+ ERROR(cdev, "Unable to loop back buffer to %s: %d\n",
+ ep->name, status);
+ goto free_req;
+ }
/* "should never get here" */
- /* FALLTHROUGH */
-
default:
ERROR(cdev, "%s loop complete --> %d, %d/%d\n", ep->name,
status, req->actual, req->length);
@@ -279,6 +288,10 @@ static void loopback_complete(struct usb_ep *ep, struct usb_request *req)
case -ECONNABORTED: /* hardware forced ep reset */
case -ECONNRESET: /* request dequeued */
case -ESHUTDOWN: /* disconnect from host */
+free_req:
+ usb_ep_free_request(ep == loop->in_ep ?
+ loop->out_ep : loop->in_ep,
+ req->context);
free_ep_req(ep, req);
return;
}
@@ -295,53 +308,77 @@ static void disable_loopback(struct f_loopback *loop)
static inline struct usb_request *lb_alloc_ep_req(struct usb_ep *ep, int len)
{
- return alloc_ep_req(ep, len, buflen);
+ struct f_loopback *loop = ep->driver_data;
+
+ return alloc_ep_req(ep, len, loop->buflen);
}
-static int enable_endpoint(struct usb_composite_dev *cdev, struct f_loopback *loop,
- struct usb_ep *ep)
+static int alloc_requests(struct usb_composite_dev *cdev,
+ struct f_loopback *loop)
{
- struct usb_request *req;
- unsigned i;
- int result;
-
- /*
- * one endpoint writes data back IN to the host while another endpoint
- * just reads OUT packets
- */
- result = config_ep_by_speed(cdev->gadget, &(loop->function), ep);
- if (result)
- goto fail0;
- result = usb_ep_enable(ep);
- if (result < 0)
- goto fail0;
- ep->driver_data = loop;
+ struct usb_request *in_req, *out_req;
+ int i;
+ int result = 0;
/*
* allocate a bunch of read buffers and queue them all at once.
- * we buffer at most 'qlen' transfers; fewer if any need more
- * than 'buflen' bytes each.
+ * we buffer at most 'qlen' transfers; We allocate buffers only
+ * for out transfer and reuse them in IN transfers to implement
+ * our loopback functionality
*/
- for (i = 0; i < qlen && result == 0; i++) {
- req = lb_alloc_ep_req(ep, 0);
- if (!req)
- goto fail1;
+ for (i = 0; i < loop->qlen && result == 0; i++) {
+ result = -ENOMEM;
+
+ in_req = usb_ep_alloc_request(loop->in_ep, GFP_ATOMIC);
+ if (!in_req)
+ goto fail;
+
+ out_req = lb_alloc_ep_req(loop->out_ep, 0);
+ if (!out_req)
+ goto fail_in;
- req->complete = loopback_complete;
- result = usb_ep_queue(ep, req, GFP_ATOMIC);
+ in_req->complete = loopback_complete;
+ out_req->complete = loopback_complete;
+
+ in_req->buf = out_req->buf;
+ /* length will be set in complete routine */
+ in_req->context = out_req;
+ out_req->context = in_req;
+
+ result = usb_ep_queue(loop->out_ep, out_req, GFP_ATOMIC);
if (result) {
ERROR(cdev, "%s queue req --> %d\n",
- ep->name, result);
- goto fail1;
+ loop->out_ep->name, result);
+ goto fail_out;
}
}
return 0;
-fail1:
- usb_ep_disable(ep);
+fail_out:
+ free_ep_req(loop->out_ep, out_req);
+fail_in:
+ usb_ep_free_request(loop->in_ep, in_req);
+fail:
+ return result;
+}
+
+static int enable_endpoint(struct usb_composite_dev *cdev,
+ struct f_loopback *loop, struct usb_ep *ep)
+{
+ int result;
+
+ result = config_ep_by_speed(cdev->gadget, &(loop->function), ep);
+ if (result)
+ goto out;
+
+ result = usb_ep_enable(ep);
+ if (result < 0)
+ goto out;
+ ep->driver_data = loop;
+ result = 0;
-fail0:
+out:
return result;
}
@@ -352,13 +389,24 @@ enable_loopback(struct usb_composite_dev *cdev, struct f_loopback *loop)
result = enable_endpoint(cdev, loop, loop->in_ep);
if (result)
- return result;
+ goto out;
result = enable_endpoint(cdev, loop, loop->out_ep);
if (result)
- return result;
+ goto disable_in;
+
+ result = alloc_requests(cdev, loop);
+ if (result)
+ goto disable_out;
DBG(cdev, "%s enabled\n", loop->function.name);
+ return 0;
+
+disable_out:
+ usb_ep_disable(loop->out_ep);
+disable_in:
+ usb_ep_disable(loop->in_ep);
+out:
return result;
}
@@ -369,8 +417,7 @@ static int loopback_set_alt(struct usb_function *f,
struct usb_composite_dev *cdev = f->config->cdev;
/* we know alt is zero */
- if (loop->in_ep->driver_data)
- disable_loopback(loop);
+ disable_loopback(loop);
return enable_loopback(cdev, loop);
}
@@ -396,10 +443,10 @@ static struct usb_function *loopback_alloc(struct usb_function_instance *fi)
lb_opts->refcnt++;
mutex_unlock(&lb_opts->lock);
- buflen = lb_opts->bulk_buflen;
- qlen = lb_opts->qlen;
- if (!qlen)
- qlen = 32;
+ loop->buflen = lb_opts->bulk_buflen;
+ loop->qlen = lb_opts->qlen;
+ if (!loop->qlen)
+ loop->qlen = 32;
loop->function.name = "loopback";
loop->function.bind = loopback_bind;
@@ -418,9 +465,6 @@ static inline struct f_lb_opts *to_f_lb_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_lb_opts);
-CONFIGFS_ATTR_OPS(f_lb_opts);
-
static void lb_attr_release(struct config_item *item)
{
struct f_lb_opts *lb_opts = to_f_lb_opts(item);
@@ -430,24 +474,24 @@ static void lb_attr_release(struct config_item *item)
static struct configfs_item_operations lb_item_ops = {
.release = lb_attr_release,
- .show_attribute = f_lb_opts_attr_show,
- .store_attribute = f_lb_opts_attr_store,
};
-static ssize_t f_lb_opts_qlen_show(struct f_lb_opts *opts, char *page)
+static ssize_t f_lb_opts_qlen_show(struct config_item *item, char *page)
{
+ struct f_lb_opts *opts = to_f_lb_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%d", opts->qlen);
+ result = sprintf(page, "%d\n", opts->qlen);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_lb_opts_qlen_store(struct f_lb_opts *opts,
+static ssize_t f_lb_opts_qlen_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_lb_opts *opts = to_f_lb_opts(item);
int ret;
u32 num;
@@ -468,25 +512,24 @@ end:
return ret;
}
-static struct f_lb_opts_attribute f_lb_opts_qlen =
- __CONFIGFS_ATTR(qlen, S_IRUGO | S_IWUSR,
- f_lb_opts_qlen_show,
- f_lb_opts_qlen_store);
+CONFIGFS_ATTR(f_lb_opts_, qlen);
-static ssize_t f_lb_opts_bulk_buflen_show(struct f_lb_opts *opts, char *page)
+static ssize_t f_lb_opts_bulk_buflen_show(struct config_item *item, char *page)
{
+ struct f_lb_opts *opts = to_f_lb_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%d", opts->bulk_buflen);
+ result = sprintf(page, "%d\n", opts->bulk_buflen);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_lb_opts_bulk_buflen_store(struct f_lb_opts *opts,
+static ssize_t f_lb_opts_bulk_buflen_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_lb_opts *opts = to_f_lb_opts(item);
int ret;
u32 num;
@@ -507,14 +550,11 @@ end:
return ret;
}
-static struct f_lb_opts_attribute f_lb_opts_bulk_buflen =
- __CONFIGFS_ATTR(buflen, S_IRUGO | S_IWUSR,
- f_lb_opts_bulk_buflen_show,
- f_lb_opts_bulk_buflen_store);
+CONFIGFS_ATTR(f_lb_opts_, bulk_buflen);
static struct configfs_attribute *lb_attrs[] = {
- &f_lb_opts_qlen.attr,
- &f_lb_opts_bulk_buflen.attr,
+ &f_lb_opts_attr_qlen,
+ &f_lb_opts_attr_bulk_buflen,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_mass_storage.c b/kernel/drivers/usb/gadget/function/f_mass_storage.c
index 15c307155..223ccf89d 100644
--- a/kernel/drivers/usb/gadget/function/f_mass_storage.c
+++ b/kernel/drivers/usb/gadget/function/f_mass_storage.c
@@ -54,7 +54,7 @@
* following fields:
*
* nluns Number of LUNs function have (anywhere from 1
- * to FSG_MAX_LUNS which is 8).
+ * to FSG_MAX_LUNS).
* luns An array of LUN configuration values. This
* should be filled for each LUN that
* function will include (ie. for "nluns"
@@ -214,12 +214,12 @@
#include <linux/string.h>
#include <linux/freezer.h>
#include <linux/module.h>
+#include <linux/uaccess.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/composite.h>
-#include "gadget_chips.h"
#include "configfs.h"
@@ -279,9 +279,8 @@ struct fsg_common {
int cmnd_size;
u8 cmnd[MAX_COMMAND_SIZE];
- unsigned int nluns;
unsigned int lun;
- struct fsg_lun **luns;
+ struct fsg_lun *luns[FSG_MAX_LUNS];
struct fsg_lun *curlun;
unsigned int bulk_out_maxpacket;
@@ -490,6 +489,16 @@ static void bulk_out_complete(struct usb_ep *ep, struct usb_request *req)
spin_unlock(&common->lock);
}
+static int _fsg_common_get_max_lun(struct fsg_common *common)
+{
+ int i = ARRAY_SIZE(common->luns) - 1;
+
+ while (i >= 0 && !common->luns[i])
+ --i;
+
+ return i;
+}
+
static int fsg_setup(struct usb_function *f,
const struct usb_ctrlrequest *ctrl)
{
@@ -533,7 +542,7 @@ static int fsg_setup(struct usb_function *f,
w_length != 1)
return -EDOM;
VDBG(fsg, "get max LUN\n");
- *(u8 *)req->buf = fsg->common->nluns - 1;
+ *(u8 *)req->buf = _fsg_common_get_max_lun(fsg->common);
/* Respond with data/status */
req->length = min((u16)1, w_length);
@@ -2131,8 +2140,9 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
}
/* Is the CBW meaningful? */
- if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~US_BULK_FLAG_IN ||
- cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) {
+ if (cbw->Lun >= ARRAY_SIZE(common->luns) ||
+ cbw->Flags & ~US_BULK_FLAG_IN || cbw->Length <= 0 ||
+ cbw->Length > MAX_COMMAND_SIZE) {
DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "
"cmdlen %u\n",
cbw->Lun, cbw->Flags, cbw->Length);
@@ -2159,7 +2169,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
if (common->data_size == 0)
common->data_dir = DATA_DIR_NONE;
common->lun = cbw->Lun;
- if (common->lun < common->nluns)
+ if (common->lun < ARRAY_SIZE(common->luns))
common->curlun = common->luns[common->lun];
else
common->curlun = NULL;
@@ -2248,12 +2258,10 @@ reset:
/* Disable the endpoints */
if (fsg->bulk_in_enabled) {
usb_ep_disable(fsg->bulk_in);
- fsg->bulk_in->driver_data = NULL;
fsg->bulk_in_enabled = 0;
}
if (fsg->bulk_out_enabled) {
usb_ep_disable(fsg->bulk_out);
- fsg->bulk_out->driver_data = NULL;
fsg->bulk_out_enabled = 0;
}
@@ -2307,7 +2315,7 @@ reset:
}
common->running = 1;
- for (i = 0; i < common->nluns; ++i)
+ for (i = 0; i < ARRAY_SIZE(common->luns); ++i)
if (common->luns[i])
common->luns[i]->unit_attention_data =
SS_RESET_OCCURRED;
@@ -2337,7 +2345,6 @@ static void fsg_disable(struct usb_function *f)
static void handle_exception(struct fsg_common *common)
{
- siginfo_t info;
int i;
struct fsg_buffhd *bh;
enum fsg_state old_state;
@@ -2349,8 +2356,7 @@ static void handle_exception(struct fsg_common *common)
* into a high-priority EXIT exception.
*/
for (;;) {
- int sig =
- dequeue_signal_lock(current, &current->blocked, &info);
+ int sig = kernel_dequeue_signal(NULL);
if (!sig)
break;
if (sig != SIGUSR1) {
@@ -2409,7 +2415,7 @@ static void handle_exception(struct fsg_common *common)
if (old_state == FSG_STATE_ABORT_BULK_OUT)
common->state = FSG_STATE_STATUS_PHASE;
else {
- for (i = 0; i < common->nluns; ++i) {
+ for (i = 0; i < ARRAY_SIZE(common->luns); ++i) {
curlun = common->luns[i];
if (!curlun)
continue;
@@ -2453,7 +2459,7 @@ static void handle_exception(struct fsg_common *common)
* a waste of time. Ditto for the INTERFACE_CHANGE and
* CONFIG_CHANGE cases.
*/
- /* for (i = 0; i < common->nluns; ++i) */
+ /* for (i = 0; i < common->ARRAY_SIZE(common->luns); ++i) */
/* if (common->luns[i]) */
/* common->luns[i]->unit_attention_data = */
/* SS_RESET_OCCURRED; */
@@ -2552,12 +2558,11 @@ static int fsg_main_thread(void *common_)
if (!common->ops || !common->ops->thread_exits
|| common->ops->thread_exits(common) < 0) {
- struct fsg_lun **curlun_it = common->luns;
- unsigned i = common->nluns;
+ int i;
down_write(&common->filesem);
- for (; i--; ++curlun_it) {
- struct fsg_lun *curlun = *curlun_it;
+ for (i = 0; i < ARRAY_SIZE(common->luns); --i) {
+ struct fsg_lun *curlun = common->luns[i];
if (!curlun || !fsg_lun_is_open(curlun))
continue;
@@ -2653,10 +2658,12 @@ EXPORT_SYMBOL_GPL(fsg_common_put);
/* check if fsg_num_buffers is within a valid range */
static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
{
- if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4)
+#define FSG_MAX_NUM_BUFFERS 32
+
+ if (fsg_num_buffers >= 2 && fsg_num_buffers <= FSG_MAX_NUM_BUFFERS)
return 0;
pr_err("fsg_num_buffers %u is out of range (%d to %d)\n",
- fsg_num_buffers, 2, 4);
+ fsg_num_buffers, 2, FSG_MAX_NUM_BUFFERS);
return -EINVAL;
}
@@ -2676,6 +2683,7 @@ static struct fsg_common *fsg_common_setup(struct fsg_common *common)
init_completion(&common->thread_notifier);
init_waitqueue_head(&common->fsg_wait);
common->state = FSG_STATE_TERMINATED;
+ memset(common->luns, 0, sizeof(common->luns));
return common;
}
@@ -2742,9 +2750,9 @@ error_release:
}
EXPORT_SYMBOL_GPL(fsg_common_set_num_buffers);
-void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs)
+void fsg_common_remove_lun(struct fsg_lun *lun)
{
- if (sysfs)
+ if (device_is_registered(&lun->dev))
device_unregister(&lun->dev);
fsg_lun_close(lun);
kfree(lun);
@@ -2757,48 +2765,16 @@ static void _fsg_common_remove_luns(struct fsg_common *common, int n)
for (i = 0; i < n; ++i)
if (common->luns[i]) {
- fsg_common_remove_lun(common->luns[i], common->sysfs);
+ fsg_common_remove_lun(common->luns[i]);
common->luns[i] = NULL;
}
}
-EXPORT_SYMBOL_GPL(fsg_common_remove_luns);
void fsg_common_remove_luns(struct fsg_common *common)
{
- _fsg_common_remove_luns(common, common->nluns);
-}
-
-void fsg_common_free_luns(struct fsg_common *common)
-{
- fsg_common_remove_luns(common);
- kfree(common->luns);
- common->luns = NULL;
-}
-EXPORT_SYMBOL_GPL(fsg_common_free_luns);
-
-int fsg_common_set_nluns(struct fsg_common *common, int nluns)
-{
- struct fsg_lun **curlun;
-
- /* Find out how many LUNs there should be */
- if (nluns < 1 || nluns > FSG_MAX_LUNS) {
- pr_err("invalid number of LUNs: %u\n", nluns);
- return -EINVAL;
- }
-
- curlun = kcalloc(FSG_MAX_LUNS, sizeof(*curlun), GFP_KERNEL);
- if (unlikely(!curlun))
- return -ENOMEM;
-
- if (common->luns)
- fsg_common_free_luns(common);
-
- common->luns = curlun;
- common->nluns = nluns;
-
- return 0;
+ _fsg_common_remove_luns(common, ARRAY_SIZE(common->luns));
}
-EXPORT_SYMBOL_GPL(fsg_common_set_nluns);
+EXPORT_SYMBOL_GPL(fsg_common_remove_luns);
void fsg_common_set_ops(struct fsg_common *common,
const struct fsg_operations *ops)
@@ -2836,7 +2812,8 @@ int fsg_common_set_cdev(struct fsg_common *common,
* halt bulk endpoints correctly. If one of them is present,
* disable stalls.
*/
- common->can_stall = can_stall && !(gadget_is_at91(common->gadget));
+ common->can_stall = can_stall &&
+ gadget_is_stall_supported(common->gadget);
return 0;
}
@@ -2880,7 +2857,7 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
char *pathbuf, *p;
int rc = -ENOMEM;
- if (!common->nluns || !common->luns)
+ if (id >= ARRAY_SIZE(common->luns))
return -ENODEV;
if (common->luns[id])
@@ -2934,7 +2911,7 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
if (fsg_lun_is_open(lun)) {
p = "(error)";
if (pathbuf) {
- p = d_path(&lun->filp->f_path, pathbuf, PATH_MAX);
+ p = file_path(lun->filp, pathbuf, PATH_MAX);
if (IS_ERR(p))
p = "(error)";
}
@@ -2949,7 +2926,7 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
return 0;
error_lun:
- if (common->sysfs)
+ if (device_is_registered(&lun->dev))
device_unregister(&lun->dev);
fsg_lun_close(lun);
common->luns[id] = NULL;
@@ -2964,14 +2941,16 @@ int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg)
char buf[8]; /* enough for 100000000 different numbers, decimal */
int i, rc;
- for (i = 0; i < common->nluns; ++i) {
+ fsg_common_remove_luns(common);
+
+ for (i = 0; i < cfg->nluns; ++i) {
snprintf(buf, sizeof(buf), "lun%d", i);
rc = fsg_common_create_lun(common, &cfg->luns[i], i, buf, NULL);
if (rc)
goto fail;
}
- pr_info("Number of LUNs=%d\n", common->nluns);
+ pr_info("Number of LUNs=%d\n", cfg->nluns);
return 0;
@@ -3020,6 +2999,7 @@ EXPORT_SYMBOL_GPL(fsg_common_run_thread);
static void fsg_common_release(struct kref *ref)
{
struct fsg_common *common = container_of(ref, struct fsg_common, ref);
+ int i;
/* If the thread isn't already dead, tell it to exit now */
if (common->state != FSG_STATE_TERMINATED) {
@@ -3027,22 +3007,14 @@ static void fsg_common_release(struct kref *ref)
wait_for_completion(&common->thread_notifier);
}
- if (likely(common->luns)) {
- struct fsg_lun **lun_it = common->luns;
- unsigned i = common->nluns;
-
- /* In error recovery common->nluns may be zero. */
- for (; i; --i, ++lun_it) {
- struct fsg_lun *lun = *lun_it;
- if (!lun)
- continue;
- fsg_lun_close(lun);
- if (common->sysfs)
- device_unregister(&lun->dev);
- kfree(lun);
- }
-
- kfree(common->luns);
+ for (i = 0; i < ARRAY_SIZE(common->luns); ++i) {
+ struct fsg_lun *lun = common->luns[i];
+ if (!lun)
+ continue;
+ fsg_lun_close(lun);
+ if (device_is_registered(&lun->dev))
+ device_unregister(&lun->dev);
+ kfree(lun);
}
_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
@@ -3056,6 +3028,7 @@ static void fsg_common_release(struct kref *ref)
static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
{
struct fsg_dev *fsg = fsg_from_func(f);
+ struct fsg_common *common = fsg->common;
struct usb_gadget *gadget = c->cdev->gadget;
int i;
struct usb_ep *ep;
@@ -3063,6 +3036,13 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
int ret;
struct fsg_opts *opts;
+ /* Don't allow to bind if we don't have at least one LUN */
+ ret = _fsg_common_get_max_lun(common);
+ if (ret < 0) {
+ pr_err("There should be at least one LUN.\n");
+ return -EINVAL;
+ }
+
opts = fsg_opts_from_func_inst(f->fi);
if (!opts->no_configfs) {
ret = fsg_common_set_cdev(fsg->common, c->cdev,
@@ -3080,7 +3060,7 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
/* New interface */
i = usb_interface_id(c, f);
if (i < 0)
- return i;
+ goto fail;
fsg_intf_desc.bInterfaceNumber = i;
fsg->interface_number = i;
@@ -3088,13 +3068,11 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc);
if (!ep)
goto autoconf_fail;
- ep->driver_data = fsg->common; /* claim the endpoint */
fsg->bulk_in = ep;
ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc);
if (!ep)
goto autoconf_fail;
- ep->driver_data = fsg->common; /* claim the endpoint */
fsg->bulk_out = ep;
/* Assume endpoint addresses are the same for both speeds */
@@ -3123,7 +3101,14 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
autoconf_fail:
ERROR(fsg, "unable to autoconfigure all endpoints\n");
- return -ENOTSUPP;
+ i = -ENOTSUPP;
+fail:
+ /* terminate the thread */
+ if (fsg->common->state != FSG_STATE_TERMINATED) {
+ raise_exception(fsg->common, FSG_STATE_EXIT);
+ wait_for_completion(&fsg->common->thread_notifier);
+ }
+ return i;
}
/****************************** ALLOCATE FUNCTION *************************/
@@ -3155,9 +3140,6 @@ static inline struct fsg_opts *to_fsg_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(fsg_lun_opts);
-CONFIGFS_ATTR_OPS(fsg_lun_opts);
-
static void fsg_lun_attr_release(struct config_item *item)
{
struct fsg_lun_opts *lun_opts;
@@ -3168,110 +3150,93 @@ static void fsg_lun_attr_release(struct config_item *item)
static struct configfs_item_operations fsg_lun_item_ops = {
.release = fsg_lun_attr_release,
- .show_attribute = fsg_lun_opts_attr_show,
- .store_attribute = fsg_lun_opts_attr_store,
};
-static ssize_t fsg_lun_opts_file_show(struct fsg_lun_opts *opts, char *page)
+static ssize_t fsg_lun_opts_file_show(struct config_item *item, char *page)
{
- struct fsg_opts *fsg_opts;
-
- fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+ struct fsg_lun_opts *opts = to_fsg_lun_opts(item);
+ struct fsg_opts *fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
return fsg_show_file(opts->lun, &fsg_opts->common->filesem, page);
}
-static ssize_t fsg_lun_opts_file_store(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_file_store(struct config_item *item,
const char *page, size_t len)
{
- struct fsg_opts *fsg_opts;
-
- fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+ struct fsg_lun_opts *opts = to_fsg_lun_opts(item);
+ struct fsg_opts *fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
return fsg_store_file(opts->lun, &fsg_opts->common->filesem, page, len);
}
-static struct fsg_lun_opts_attribute fsg_lun_opts_file =
- __CONFIGFS_ATTR(file, S_IRUGO | S_IWUSR, fsg_lun_opts_file_show,
- fsg_lun_opts_file_store);
+CONFIGFS_ATTR(fsg_lun_opts_, file);
-static ssize_t fsg_lun_opts_ro_show(struct fsg_lun_opts *opts, char *page)
+static ssize_t fsg_lun_opts_ro_show(struct config_item *item, char *page)
{
- return fsg_show_ro(opts->lun, page);
+ return fsg_show_ro(to_fsg_lun_opts(item)->lun, page);
}
-static ssize_t fsg_lun_opts_ro_store(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_ro_store(struct config_item *item,
const char *page, size_t len)
{
- struct fsg_opts *fsg_opts;
-
- fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+ struct fsg_lun_opts *opts = to_fsg_lun_opts(item);
+ struct fsg_opts *fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
return fsg_store_ro(opts->lun, &fsg_opts->common->filesem, page, len);
}
-static struct fsg_lun_opts_attribute fsg_lun_opts_ro =
- __CONFIGFS_ATTR(ro, S_IRUGO | S_IWUSR, fsg_lun_opts_ro_show,
- fsg_lun_opts_ro_store);
+CONFIGFS_ATTR(fsg_lun_opts_, ro);
-static ssize_t fsg_lun_opts_removable_show(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_removable_show(struct config_item *item,
char *page)
{
- return fsg_show_removable(opts->lun, page);
+ return fsg_show_removable(to_fsg_lun_opts(item)->lun, page);
}
-static ssize_t fsg_lun_opts_removable_store(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_removable_store(struct config_item *item,
const char *page, size_t len)
{
- return fsg_store_removable(opts->lun, page, len);
+ return fsg_store_removable(to_fsg_lun_opts(item)->lun, page, len);
}
-static struct fsg_lun_opts_attribute fsg_lun_opts_removable =
- __CONFIGFS_ATTR(removable, S_IRUGO | S_IWUSR,
- fsg_lun_opts_removable_show,
- fsg_lun_opts_removable_store);
+CONFIGFS_ATTR(fsg_lun_opts_, removable);
-static ssize_t fsg_lun_opts_cdrom_show(struct fsg_lun_opts *opts, char *page)
+static ssize_t fsg_lun_opts_cdrom_show(struct config_item *item, char *page)
{
- return fsg_show_cdrom(opts->lun, page);
+ return fsg_show_cdrom(to_fsg_lun_opts(item)->lun, page);
}
-static ssize_t fsg_lun_opts_cdrom_store(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_cdrom_store(struct config_item *item,
const char *page, size_t len)
{
- struct fsg_opts *fsg_opts;
-
- fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+ struct fsg_lun_opts *opts = to_fsg_lun_opts(item);
+ struct fsg_opts *fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
return fsg_store_cdrom(opts->lun, &fsg_opts->common->filesem, page,
len);
}
-static struct fsg_lun_opts_attribute fsg_lun_opts_cdrom =
- __CONFIGFS_ATTR(cdrom, S_IRUGO | S_IWUSR, fsg_lun_opts_cdrom_show,
- fsg_lun_opts_cdrom_store);
+CONFIGFS_ATTR(fsg_lun_opts_, cdrom);
-static ssize_t fsg_lun_opts_nofua_show(struct fsg_lun_opts *opts, char *page)
+static ssize_t fsg_lun_opts_nofua_show(struct config_item *item, char *page)
{
- return fsg_show_nofua(opts->lun, page);
+ return fsg_show_nofua(to_fsg_lun_opts(item)->lun, page);
}
-static ssize_t fsg_lun_opts_nofua_store(struct fsg_lun_opts *opts,
+static ssize_t fsg_lun_opts_nofua_store(struct config_item *item,
const char *page, size_t len)
{
- return fsg_store_nofua(opts->lun, page, len);
+ return fsg_store_nofua(to_fsg_lun_opts(item)->lun, page, len);
}
-static struct fsg_lun_opts_attribute fsg_lun_opts_nofua =
- __CONFIGFS_ATTR(nofua, S_IRUGO | S_IWUSR, fsg_lun_opts_nofua_show,
- fsg_lun_opts_nofua_store);
+CONFIGFS_ATTR(fsg_lun_opts_, nofua);
static struct configfs_attribute *fsg_lun_attrs[] = {
- &fsg_lun_opts_file.attr,
- &fsg_lun_opts_ro.attr,
- &fsg_lun_opts_removable.attr,
- &fsg_lun_opts_cdrom.attr,
- &fsg_lun_opts_nofua.attr,
+ &fsg_lun_opts_attr_file,
+ &fsg_lun_opts_attr_ro,
+ &fsg_lun_opts_attr_removable,
+ &fsg_lun_opts_attr_cdrom,
+ &fsg_lun_opts_attr_nofua,
NULL,
};
@@ -3355,7 +3320,7 @@ static void fsg_lun_drop(struct config_group *group, struct config_item *item)
unregister_gadget_item(gadget);
}
- fsg_common_remove_lun(lun_opts->lun, fsg_opts->common->sysfs);
+ fsg_common_remove_lun(lun_opts->lun);
fsg_opts->common->luns[lun_opts->lun_id] = NULL;
lun_opts->lun_id = 0;
mutex_unlock(&fsg_opts->lock);
@@ -3363,9 +3328,6 @@ static void fsg_lun_drop(struct config_group *group, struct config_item *item)
config_item_put(item);
}
-CONFIGFS_ATTR_STRUCT(fsg_opts);
-CONFIGFS_ATTR_OPS(fsg_opts);
-
static void fsg_attr_release(struct config_item *item)
{
struct fsg_opts *opts = to_fsg_opts(item);
@@ -3375,12 +3337,11 @@ static void fsg_attr_release(struct config_item *item)
static struct configfs_item_operations fsg_item_ops = {
.release = fsg_attr_release,
- .show_attribute = fsg_opts_attr_show,
- .store_attribute = fsg_opts_attr_store,
};
-static ssize_t fsg_opts_stall_show(struct fsg_opts *opts, char *page)
+static ssize_t fsg_opts_stall_show(struct config_item *item, char *page)
{
+ struct fsg_opts *opts = to_fsg_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -3390,9 +3351,10 @@ static ssize_t fsg_opts_stall_show(struct fsg_opts *opts, char *page)
return result;
}
-static ssize_t fsg_opts_stall_store(struct fsg_opts *opts, const char *page,
+static ssize_t fsg_opts_stall_store(struct config_item *item, const char *page,
size_t len)
{
+ struct fsg_opts *opts = to_fsg_opts(item);
int ret;
bool stall;
@@ -3414,13 +3376,12 @@ static ssize_t fsg_opts_stall_store(struct fsg_opts *opts, const char *page,
return ret;
}
-static struct fsg_opts_attribute fsg_opts_stall =
- __CONFIGFS_ATTR(stall, S_IRUGO | S_IWUSR, fsg_opts_stall_show,
- fsg_opts_stall_store);
+CONFIGFS_ATTR(fsg_opts_, stall);
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-static ssize_t fsg_opts_num_buffers_show(struct fsg_opts *opts, char *page)
+static ssize_t fsg_opts_num_buffers_show(struct config_item *item, char *page)
{
+ struct fsg_opts *opts = to_fsg_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -3430,9 +3391,10 @@ static ssize_t fsg_opts_num_buffers_show(struct fsg_opts *opts, char *page)
return result;
}
-static ssize_t fsg_opts_num_buffers_store(struct fsg_opts *opts,
+static ssize_t fsg_opts_num_buffers_store(struct config_item *item,
const char *page, size_t len)
{
+ struct fsg_opts *opts = to_fsg_opts(item);
int ret;
u8 num;
@@ -3457,17 +3419,13 @@ end:
return ret;
}
-static struct fsg_opts_attribute fsg_opts_num_buffers =
- __CONFIGFS_ATTR(num_buffers, S_IRUGO | S_IWUSR,
- fsg_opts_num_buffers_show,
- fsg_opts_num_buffers_store);
-
+CONFIGFS_ATTR(fsg_opts_, num_buffers);
#endif
static struct configfs_attribute *fsg_attrs[] = {
- &fsg_opts_stall.attr,
+ &fsg_opts_attr_stall,
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
- &fsg_opts_num_buffers.attr,
+ &fsg_opts_attr_num_buffers,
#endif
NULL,
};
@@ -3509,14 +3467,11 @@ static struct usb_function_instance *fsg_alloc_inst(void)
rc = PTR_ERR(opts->common);
goto release_opts;
}
- rc = fsg_common_set_nluns(opts->common, FSG_MAX_LUNS);
- if (rc)
- goto release_opts;
rc = fsg_common_set_num_buffers(opts->common,
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS);
if (rc)
- goto release_luns;
+ goto release_opts;
pr_info(FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
@@ -3524,6 +3479,9 @@ static struct usb_function_instance *fsg_alloc_inst(void)
config.removable = true;
rc = fsg_common_create_lun(opts->common, &config, 0, "lun.0",
(const char **)&opts->func_inst.group.cg_item.ci_name);
+ if (rc)
+ goto release_buffers;
+
opts->lun0.lun = opts->common->luns[0];
opts->lun0.lun_id = 0;
config_group_init_type_name(&opts->lun0.group, "lun.0", &fsg_lun_type);
@@ -3534,8 +3492,8 @@ static struct usb_function_instance *fsg_alloc_inst(void)
return &opts->func_inst;
-release_luns:
- kfree(opts->common->luns);
+release_buffers:
+ fsg_common_free_buffers(opts->common);
release_opts:
kfree(opts);
return ERR_PTR(rc);
@@ -3561,23 +3519,12 @@ static struct usb_function *fsg_alloc(struct usb_function_instance *fi)
struct fsg_opts *opts = fsg_opts_from_func_inst(fi);
struct fsg_common *common = opts->common;
struct fsg_dev *fsg;
- unsigned nluns, i;
fsg = kzalloc(sizeof(*fsg), GFP_KERNEL);
if (unlikely(!fsg))
return ERR_PTR(-ENOMEM);
mutex_lock(&opts->lock);
- if (!opts->refcnt) {
- for (nluns = i = 0; i < FSG_MAX_LUNS; ++i)
- if (common->luns[i])
- nluns = i + 1;
- if (!nluns)
- pr_warn("No LUNS defined, continuing anyway\n");
- else
- common->nluns = nluns;
- pr_info("Number of LUNs=%u\n", common->nluns);
- }
opts->refcnt++;
mutex_unlock(&opts->lock);
diff --git a/kernel/drivers/usb/gadget/function/f_mass_storage.h b/kernel/drivers/usb/gadget/function/f_mass_storage.h
index b4866fcef..445df6775 100644
--- a/kernel/drivers/usb/gadget/function/f_mass_storage.h
+++ b/kernel/drivers/usb/gadget/function/f_mass_storage.h
@@ -137,14 +137,10 @@ void fsg_common_free_buffers(struct fsg_common *common);
int fsg_common_set_cdev(struct fsg_common *common,
struct usb_composite_dev *cdev, bool can_stall);
-void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs);
+void fsg_common_remove_lun(struct fsg_lun *lun);
void fsg_common_remove_luns(struct fsg_common *common);
-void fsg_common_free_luns(struct fsg_common *common);
-
-int fsg_common_set_nluns(struct fsg_common *common, int nluns);
-
void fsg_common_set_ops(struct fsg_common *common,
const struct fsg_operations *ops);
diff --git a/kernel/drivers/usb/gadget/function/f_midi.c b/kernel/drivers/usb/gadget/function/f_midi.c
index 6316aa5b1..898a57031 100644
--- a/kernel/drivers/usb/gadget/function/f_midi.c
+++ b/kernel/drivers/usb/gadget/function/f_midi.c
@@ -302,8 +302,7 @@ static int f_midi_start_ep(struct f_midi *midi,
int err;
struct usb_composite_dev *cdev = f->config->cdev;
- if (ep->driver_data)
- usb_ep_disable(ep);
+ usb_ep_disable(ep);
err = config_ep_by_speed(midi->gadget, f, ep);
if (err) {
@@ -329,6 +328,10 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
unsigned i;
int err;
+ /* For Control Device interface we do nothing */
+ if (intf == 0)
+ return 0;
+
err = f_midi_start_ep(midi, f, midi->in_ep);
if (err)
return err;
@@ -337,8 +340,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (err)
return err;
- if (midi->out_ep->driver_data)
- usb_ep_disable(midi->out_ep);
+ usb_ep_disable(midi->out_ep);
err = config_ep_by_speed(midi->gadget, f, midi->out_ep);
if (err) {
@@ -368,6 +370,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (err) {
ERROR(midi, "%s queue req: %d\n",
midi->out_ep->name, err);
+ free_ep_req(midi->out_ep, req);
}
}
@@ -543,10 +546,16 @@ static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
}
}
- if (req->length > 0)
- usb_ep_queue(ep, req, GFP_ATOMIC);
- else
+ if (req->length > 0 && ep->enabled) {
+ int err;
+
+ err = usb_ep_queue(ep, req, GFP_ATOMIC);
+ if (err < 0)
+ ERROR(midi, "%s queue req: %d\n",
+ midi->in_ep->name, err);
+ } else {
free_ep_req(ep, req);
+ }
}
static void f_midi_in_tasklet(unsigned long data)
@@ -753,12 +762,10 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f)
midi->in_ep = usb_ep_autoconfig(cdev->gadget, &bulk_in_desc);
if (!midi->in_ep)
goto fail;
- midi->in_ep->driver_data = cdev; /* claim */
midi->out_ep = usb_ep_autoconfig(cdev->gadget, &bulk_out_desc);
if (!midi->out_ep)
goto fail;
- midi->out_ep->driver_data = cdev; /* claim */
/* allocate temporary function list */
midi_function = kcalloc((MAX_PORTS * 4) + 9, sizeof(*midi_function),
@@ -885,12 +892,6 @@ fail_f_midi:
fail:
f_midi_unregister_card(midi);
fail_register:
- /* we might as well release our claims on endpoints */
- if (midi->out_ep)
- midi->out_ep->driver_data = NULL;
- if (midi->in_ep)
- midi->in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -902,9 +903,6 @@ static inline struct f_midi_opts *to_f_midi_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_midi_opts);
-CONFIGFS_ATTR_OPS(f_midi_opts);
-
static void midi_attr_release(struct config_item *item)
{
struct f_midi_opts *opts = to_f_midi_opts(item);
@@ -914,13 +912,12 @@ static void midi_attr_release(struct config_item *item)
static struct configfs_item_operations midi_item_ops = {
.release = midi_attr_release,
- .show_attribute = f_midi_opts_attr_show,
- .store_attribute = f_midi_opts_attr_store,
};
#define F_MIDI_OPT(name, test_limit, limit) \
-static ssize_t f_midi_opts_##name##_show(struct f_midi_opts *opts, char *page) \
+static ssize_t f_midi_opts_##name##_show(struct config_item *item, char *page) \
{ \
+ struct f_midi_opts *opts = to_f_midi_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -930,9 +927,10 @@ static ssize_t f_midi_opts_##name##_show(struct f_midi_opts *opts, char *page) \
return result; \
} \
\
-static ssize_t f_midi_opts_##name##_store(struct f_midi_opts *opts, \
+static ssize_t f_midi_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_midi_opts *opts = to_f_midi_opts(item); \
int ret; \
u32 num; \
\
@@ -958,9 +956,7 @@ end: \
return ret; \
} \
\
-static struct f_midi_opts_attribute f_midi_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, f_midi_opts_##name##_show, \
- f_midi_opts_##name##_store)
+CONFIGFS_ATTR(f_midi_opts_, name);
F_MIDI_OPT(index, true, SNDRV_CARDS);
F_MIDI_OPT(buflen, false, 0);
@@ -968,8 +964,9 @@ F_MIDI_OPT(qlen, false, 0);
F_MIDI_OPT(in_ports, true, MAX_PORTS);
F_MIDI_OPT(out_ports, true, MAX_PORTS);
-static ssize_t f_midi_opts_id_show(struct f_midi_opts *opts, char *page)
+static ssize_t f_midi_opts_id_show(struct config_item *item, char *page)
{
+ struct f_midi_opts *opts = to_f_midi_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -985,9 +982,10 @@ static ssize_t f_midi_opts_id_show(struct f_midi_opts *opts, char *page)
return result;
}
-static ssize_t f_midi_opts_id_store(struct f_midi_opts *opts,
+static ssize_t f_midi_opts_id_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_midi_opts *opts = to_f_midi_opts(item);
int ret;
char *c;
@@ -1012,17 +1010,15 @@ end:
return ret;
}
-static struct f_midi_opts_attribute f_midi_opts_id =
- __CONFIGFS_ATTR(id, S_IRUGO | S_IWUSR, f_midi_opts_id_show,
- f_midi_opts_id_store);
+CONFIGFS_ATTR(f_midi_opts_, id);
static struct configfs_attribute *midi_attrs[] = {
- &f_midi_opts_index.attr,
- &f_midi_opts_buflen.attr,
- &f_midi_opts_qlen.attr,
- &f_midi_opts_in_ports.attr,
- &f_midi_opts_out_ports.attr,
- &f_midi_opts_id.attr,
+ &f_midi_opts_attr_index,
+ &f_midi_opts_attr_buflen,
+ &f_midi_opts_attr_qlen,
+ &f_midi_opts_attr_in_ports,
+ &f_midi_opts_attr_out_ports,
+ &f_midi_opts_attr_id,
NULL,
};
@@ -1145,7 +1141,7 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
if (opts->id && !midi->id) {
status = -ENOMEM;
mutex_unlock(&opts->lock);
- goto kstrdup_fail;
+ goto setup_fail;
}
midi->in_ports = opts->in_ports;
midi->out_ports = opts->out_ports;
@@ -1164,8 +1160,6 @@ static struct usb_function *f_midi_alloc(struct usb_function_instance *fi)
return &midi->func;
-kstrdup_fail:
- f_midi_unregister_card(midi);
setup_fail:
for (--i; i >= 0; i--)
kfree(midi->in_port[i]);
diff --git a/kernel/drivers/usb/gadget/function/f_ncm.c b/kernel/drivers/usb/gadget/function/f_ncm.c
index bdcda9f51..7ad798ace 100644
--- a/kernel/drivers/usb/gadget/function/f_ncm.c
+++ b/kernel/drivers/usb/gadget/function/f_ncm.c
@@ -586,7 +586,7 @@ static void ncm_ep0out_complete(struct usb_ep *ep, struct usb_request *req)
unsigned in_size;
struct usb_function *f = req->context;
struct f_ncm *ncm = func_to_ncm(f);
- struct usb_composite_dev *cdev = ep->driver_data;
+ struct usb_composite_dev *cdev = f->config->cdev;
req->context = NULL;
if (req->status || req->actual != req->length) {
@@ -803,10 +803,8 @@ static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (alt != 0)
goto fail;
- if (ncm->notify->driver_data) {
- DBG(cdev, "reset ncm control %d\n", intf);
- usb_ep_disable(ncm->notify);
- }
+ DBG(cdev, "reset ncm control %d\n", intf);
+ usb_ep_disable(ncm->notify);
if (!(ncm->notify->desc)) {
DBG(cdev, "init ncm ctrl %d\n", intf);
@@ -814,14 +812,13 @@ static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
goto fail;
}
usb_ep_enable(ncm->notify);
- ncm->notify->driver_data = ncm;
/* Data interface has two altsettings, 0 and 1 */
} else if (intf == ncm->data_id) {
if (alt > 1)
goto fail;
- if (ncm->port.in_ep->driver_data) {
+ if (ncm->port.in_ep->enabled) {
DBG(cdev, "reset ncm\n");
ncm->timer_stopping = true;
ncm->netdev = NULL;
@@ -853,9 +850,8 @@ static int ncm_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* Enable zlps by default for NCM conformance;
* override for musb_hdrc (avoids txdma ovhead)
*/
- ncm->port.is_zlp_ok = !(
- gadget_is_musbhdrc(cdev->gadget)
- );
+ ncm->port.is_zlp_ok =
+ gadget_is_zlp_supported(cdev->gadget);
ncm->port.cdc_filter = DEFAULT_FILTER;
DBG(cdev, "activate ncm\n");
net = gether_connect(&ncm->port);
@@ -886,7 +882,7 @@ static int ncm_get_alt(struct usb_function *f, unsigned intf)
if (intf == ncm->ctrl_id)
return 0;
- return ncm->port.in_ep->driver_data ? 1 : 0;
+ return ncm->port.in_ep->enabled ? 1 : 0;
}
static struct sk_buff *package_for_tx(struct f_ncm *ncm)
@@ -1277,15 +1273,14 @@ static void ncm_disable(struct usb_function *f)
DBG(cdev, "ncm deactivated\n");
- if (ncm->port.in_ep->driver_data) {
+ if (ncm->port.in_ep->enabled) {
ncm->timer_stopping = true;
ncm->netdev = NULL;
gether_disconnect(&ncm->port);
}
- if (ncm->notify->driver_data) {
+ if (ncm->notify->enabled) {
usb_ep_disable(ncm->notify);
- ncm->notify->driver_data = NULL;
ncm->notify->desc = NULL;
}
}
@@ -1403,19 +1398,16 @@ static int ncm_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
ncm->port.in_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_ncm_out_desc);
if (!ep)
goto fail;
ncm->port.out_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_ncm_notify_desc);
if (!ep)
goto fail;
ncm->notify = ep;
- ep->driver_data = cdev; /* claim */
status = -ENOMEM;
@@ -1469,14 +1461,6 @@ fail:
usb_ep_free_request(ncm->notify, ncm->notify_req);
}
- /* we might as well release our claims on endpoints */
- if (ncm->notify)
- ncm->notify->driver_data = NULL;
- if (ncm->port.out_ep)
- ncm->port.out_ep->driver_data = NULL;
- if (ncm->port.in_ep)
- ncm->port.in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -1504,10 +1488,10 @@ USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(ncm);
USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(ncm);
static struct configfs_attribute *ncm_attrs[] = {
- &f_ncm_opts_dev_addr.attr,
- &f_ncm_opts_host_addr.attr,
- &f_ncm_opts_qmult.attr,
- &f_ncm_opts_ifname.attr,
+ &ncm_opts_attr_dev_addr,
+ &ncm_opts_attr_host_addr,
+ &ncm_opts_attr_qmult,
+ &ncm_opts_attr_ifname,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_obex.c b/kernel/drivers/usb/gadget/function/f_obex.c
index a1b79c534..d6396e090 100644
--- a/kernel/drivers/usb/gadget/function/f_obex.c
+++ b/kernel/drivers/usb/gadget/function/f_obex.c
@@ -20,7 +20,6 @@
#include <linux/module.h>
#include "u_serial.h"
-#include "gadget_chips.h"
/*
@@ -37,7 +36,6 @@ struct f_obex {
u8 data_id;
u8 cur_alt;
u8 port_num;
- u8 can_activate;
};
static inline struct f_obex *func_to_obex(struct usb_function *f)
@@ -208,7 +206,7 @@ static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (alt > 1)
goto fail;
- if (obex->port.in->driver_data) {
+ if (obex->port.in->enabled) {
dev_dbg(&cdev->gadget->dev,
"reset obex ttyGS%d\n", obex->port_num);
gserial_disconnect(&obex->port);
@@ -268,9 +266,6 @@ static void obex_connect(struct gserial *g)
struct usb_composite_dev *cdev = g->func.config->cdev;
int status;
- if (!obex->can_activate)
- return;
-
status = usb_function_activate(&g->func);
if (status)
dev_dbg(&cdev->gadget->dev,
@@ -284,9 +279,6 @@ static void obex_disconnect(struct gserial *g)
struct usb_composite_dev *cdev = g->func.config->cdev;
int status;
- if (!obex->can_activate)
- return;
-
status = usb_function_deactivate(&g->func);
if (status)
dev_dbg(&cdev->gadget->dev,
@@ -304,7 +296,7 @@ static inline bool can_support_obex(struct usb_configuration *c)
*
* Altsettings are mandatory, however...
*/
- if (!gadget_supports_altsettings(c->cdev->gadget))
+ if (!gadget_is_altset_supported(c->cdev->gadget))
return false;
/* everything else is *probably* fine ... */
@@ -356,13 +348,11 @@ static int obex_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
obex->port.in = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_out_desc);
if (!ep)
goto fail;
obex->port.out = ep;
- ep->driver_data = cdev; /* claim */
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
@@ -378,17 +368,6 @@ static int obex_bind(struct usb_configuration *c, struct usb_function *f)
if (status)
goto fail;
- /* Avoid letting this gadget enumerate until the userspace
- * OBEX server is active.
- */
- status = usb_function_deactivate(f);
- if (status < 0)
- WARNING(cdev, "obex ttyGS%d: can't prevent enumeration, %d\n",
- obex->port_num, status);
- else
- obex->can_activate = true;
-
-
dev_dbg(&cdev->gadget->dev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n",
obex->port_num,
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
@@ -397,12 +376,6 @@ static int obex_bind(struct usb_configuration *c, struct usb_function *f)
return 0;
fail:
- /* we might as well release our claims on endpoints */
- if (obex->port.out)
- obex->port.out->driver_data = NULL;
- if (obex->port.in)
- obex->port.in->driver_data = NULL;
-
ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
return status;
@@ -414,22 +387,6 @@ static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_serial_opts);
-static ssize_t f_obex_attr_show(struct config_item *item,
- struct configfs_attribute *attr,
- char *page)
-{
- struct f_serial_opts *opts = to_f_serial_opts(item);
- struct f_serial_opts_attribute *f_serial_opts_attr =
- container_of(attr, struct f_serial_opts_attribute, attr);
- ssize_t ret = 0;
-
- if (f_serial_opts_attr->show)
- ret = f_serial_opts_attr->show(opts, page);
-
- return ret;
-}
-
static void obex_attr_release(struct config_item *item)
{
struct f_serial_opts *opts = to_f_serial_opts(item);
@@ -439,19 +396,17 @@ static void obex_attr_release(struct config_item *item)
static struct configfs_item_operations obex_item_ops = {
.release = obex_attr_release,
- .show_attribute = f_obex_attr_show,
};
-static ssize_t f_obex_port_num_show(struct f_serial_opts *opts, char *page)
+static ssize_t f_obex_port_num_show(struct config_item *item, char *page)
{
- return sprintf(page, "%u\n", opts->port_num);
+ return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num);
}
-static struct f_serial_opts_attribute f_obex_port_num =
- __CONFIGFS_ATTR_RO(port_num, f_obex_port_num_show);
+CONFIGFS_ATTR_RO(f_obex_, port_num);
static struct configfs_attribute *acm_attrs[] = {
- &f_obex_port_num.attr,
+ &f_obex_attr_port_num,
NULL,
};
@@ -529,6 +484,7 @@ static struct usb_function *obex_alloc(struct usb_function_instance *fi)
obex->port.func.get_alt = obex_get_alt;
obex->port.func.disable = obex_disable;
obex->port.func.free_func = obex_free;
+ obex->port.func.bind_deactivated = true;
return &obex->port.func;
}
diff --git a/kernel/drivers/usb/gadget/function/f_phonet.c b/kernel/drivers/usb/gadget/function/f_phonet.c
index c0c3ef272..157441dbf 100644
--- a/kernel/drivers/usb/gadget/function/f_phonet.c
+++ b/kernel/drivers/usb/gadget/function/f_phonet.c
@@ -418,7 +418,7 @@ static int pn_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
spin_lock(&port->lock);
- if (fp->in_ep->driver_data)
+ if (fp->in_ep->enabled)
__pn_reset(f);
if (alt == 1) {
@@ -530,13 +530,11 @@ static int pn_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto err;
fp->out_ep = ep;
- ep->driver_data = fp; /* Claim */
ep = usb_ep_autoconfig(gadget, &pn_fs_source_desc);
if (!ep)
goto err;
fp->in_ep = ep;
- ep->driver_data = fp; /* Claim */
pn_hs_sink_desc.bEndpointAddress = pn_fs_sink_desc.bEndpointAddress;
pn_hs_source_desc.bEndpointAddress = pn_fs_source_desc.bEndpointAddress;
@@ -575,10 +573,6 @@ err_req:
usb_ep_free_request(fp->out_ep, fp->out_reqv[i]);
usb_free_all_descriptors(f);
err:
- if (fp->out_ep)
- fp->out_ep->driver_data = NULL;
- if (fp->in_ep)
- fp->in_ep->driver_data = NULL;
ERROR(cdev, "USB CDC Phonet: cannot autoconfigure\n");
return status;
}
@@ -589,21 +583,6 @@ static inline struct f_phonet_opts *to_f_phonet_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_phonet_opts);
-static ssize_t f_phonet_attr_show(struct config_item *item,
- struct configfs_attribute *attr,
- char *page)
-{
- struct f_phonet_opts *opts = to_f_phonet_opts(item);
- struct f_phonet_opts_attribute *f_phonet_opts_attr =
- container_of(attr, struct f_phonet_opts_attribute, attr);
- ssize_t ret = 0;
-
- if (f_phonet_opts_attr->show)
- ret = f_phonet_opts_attr->show(opts, page);
- return ret;
-}
-
static void phonet_attr_release(struct config_item *item)
{
struct f_phonet_opts *opts = to_f_phonet_opts(item);
@@ -613,19 +592,17 @@ static void phonet_attr_release(struct config_item *item)
static struct configfs_item_operations phonet_item_ops = {
.release = phonet_attr_release,
- .show_attribute = f_phonet_attr_show,
};
-static ssize_t f_phonet_ifname_show(struct f_phonet_opts *opts, char *page)
+static ssize_t f_phonet_ifname_show(struct config_item *item, char *page)
{
- return gether_get_ifname(opts->net, page, PAGE_SIZE);
+ return gether_get_ifname(to_f_phonet_opts(item)->net, page, PAGE_SIZE);
}
-static struct f_phonet_opts_attribute f_phonet_ifname =
- __CONFIGFS_ATTR_RO(ifname, f_phonet_ifname_show);
+CONFIGFS_ATTR_RO(f_phonet_, ifname);
static struct configfs_attribute *phonet_attrs[] = {
- &f_phonet_ifname.attr,
+ &f_phonet_attr_ifname,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_printer.c b/kernel/drivers/usb/gadget/function/f_printer.c
index 44173df27..0fbfb2b2a 100644
--- a/kernel/drivers/usb/gadget/function/f_printer.c
+++ b/kernel/drivers/usb/gadget/function/f_printer.c
@@ -804,6 +804,8 @@ done:
static void printer_reset_interface(struct printer_dev *dev)
{
+ unsigned long flags;
+
if (dev->interface < 0)
return;
@@ -815,9 +817,11 @@ static void printer_reset_interface(struct printer_dev *dev)
if (dev->out_ep->desc)
usb_ep_disable(dev->out_ep);
+ spin_lock_irqsave(&dev->lock, flags);
dev->in_ep->desc = NULL;
dev->out_ep->desc = NULL;
dev->interface = -1;
+ spin_unlock_irqrestore(&dev->lock, flags);
}
/* Change our operational Interface. */
@@ -1035,12 +1039,10 @@ autoconf_fail:
cdev->gadget->name);
return -ENODEV;
}
- in_ep->driver_data = in_ep; /* claim */
out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc);
if (!out_ep)
goto autoconf_fail;
- out_ep->driver_data = out_ep; /* claim */
/* assumes that all endpoints are dual-speed */
hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
@@ -1131,13 +1133,10 @@ static int printer_func_set_alt(struct usb_function *f,
static void printer_func_disable(struct usb_function *f)
{
struct printer_dev *dev = func_to_printer(f);
- unsigned long flags;
DBG(dev, "%s\n", __func__);
- spin_lock_irqsave(&dev->lock, flags);
printer_reset_interface(dev);
- spin_unlock_irqrestore(&dev->lock, flags);
}
static inline struct f_printer_opts
@@ -1147,9 +1146,6 @@ static inline struct f_printer_opts
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_printer_opts);
-CONFIGFS_ATTR_OPS(f_printer_opts);
-
static void printer_attr_release(struct config_item *item)
{
struct f_printer_opts *opts = to_f_printer_opts(item);
@@ -1159,13 +1155,12 @@ static void printer_attr_release(struct config_item *item)
static struct configfs_item_operations printer_item_ops = {
.release = printer_attr_release,
- .show_attribute = f_printer_opts_attr_show,
- .store_attribute = f_printer_opts_attr_store,
};
-static ssize_t f_printer_opts_pnp_string_show(struct f_printer_opts *opts,
+static ssize_t f_printer_opts_pnp_string_show(struct config_item *item,
char *page)
{
+ struct f_printer_opts *opts = to_f_printer_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -1175,9 +1170,10 @@ static ssize_t f_printer_opts_pnp_string_show(struct f_printer_opts *opts,
return result;
}
-static ssize_t f_printer_opts_pnp_string_store(struct f_printer_opts *opts,
+static ssize_t f_printer_opts_pnp_string_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_printer_opts *opts = to_f_printer_opts(item);
int result, l;
mutex_lock(&opts->lock);
@@ -1190,14 +1186,12 @@ static ssize_t f_printer_opts_pnp_string_store(struct f_printer_opts *opts,
return result;
}
-static struct f_printer_opts_attribute f_printer_opts_pnp_string =
- __CONFIGFS_ATTR(pnp_string, S_IRUGO | S_IWUSR,
- f_printer_opts_pnp_string_show,
- f_printer_opts_pnp_string_store);
+CONFIGFS_ATTR(f_printer_opts_, pnp_string);
-static ssize_t f_printer_opts_q_len_show(struct f_printer_opts *opts,
+static ssize_t f_printer_opts_q_len_show(struct config_item *item,
char *page)
{
+ struct f_printer_opts *opts = to_f_printer_opts(item);
int result;
mutex_lock(&opts->lock);
@@ -1207,9 +1201,10 @@ static ssize_t f_printer_opts_q_len_show(struct f_printer_opts *opts,
return result;
}
-static ssize_t f_printer_opts_q_len_store(struct f_printer_opts *opts,
+static ssize_t f_printer_opts_q_len_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_printer_opts *opts = to_f_printer_opts(item);
int ret;
u16 num;
@@ -1230,13 +1225,11 @@ end:
return ret;
}
-static struct f_printer_opts_attribute f_printer_opts_q_len =
- __CONFIGFS_ATTR(q_len, S_IRUGO | S_IWUSR, f_printer_opts_q_len_show,
- f_printer_opts_q_len_store);
+CONFIGFS_ATTR(f_printer_opts_, q_len);
static struct configfs_attribute *printer_attrs[] = {
- &f_printer_opts_pnp_string.attr,
- &f_printer_opts_q_len.attr,
+ &f_printer_opts_attr_pnp_string,
+ &f_printer_opts_attr_q_len,
NULL,
};
@@ -1248,7 +1241,15 @@ static struct config_item_type printer_func_type = {
static inline int gprinter_get_minor(void)
{
- return ida_simple_get(&printer_ida, 0, 0, GFP_KERNEL);
+ int ret;
+
+ ret = ida_simple_get(&printer_ida, 0, 0, GFP_KERNEL);
+ if (ret >= PRINTER_MINORS) {
+ ida_simple_remove(&printer_ida, ret);
+ ret = -ENODEV;
+ }
+
+ return ret;
}
static inline void gprinter_put_minor(int minor)
diff --git a/kernel/drivers/usb/gadget/function/f_rndis.c b/kernel/drivers/usb/gadget/function/f_rndis.c
index 829edf878..e587767e3 100644
--- a/kernel/drivers/usb/gadget/function/f_rndis.c
+++ b/kernel/drivers/usb/gadget/function/f_rndis.c
@@ -76,7 +76,7 @@ struct f_rndis {
u8 ethaddr[ETH_ALEN];
u32 vendorID;
const char *manufacturer;
- int config;
+ struct rndis_params *params;
struct usb_ep *notify;
struct usb_request *notify_req;
@@ -453,7 +453,7 @@ static void rndis_command_complete(struct usb_ep *ep, struct usb_request *req)
/* received RNDIS command from USB_CDC_SEND_ENCAPSULATED_COMMAND */
// spin_lock(&dev->lock);
- status = rndis_msg_parser(rndis->config, (u8 *) req->buf);
+ status = rndis_msg_parser(rndis->params, (u8 *) req->buf);
if (status < 0)
pr_err("RNDIS command error %d, %d/%d\n",
status, req->actual, req->length);
@@ -499,12 +499,12 @@ rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
u32 n;
/* return the result */
- buf = rndis_get_next_response(rndis->config, &n);
+ buf = rndis_get_next_response(rndis->params, &n);
if (buf) {
memcpy(req->buf, buf, n);
req->complete = rndis_response_complete;
req->context = rndis;
- rndis_free_response(rndis->config, buf);
+ rndis_free_response(rndis->params, buf);
value = n;
}
/* else stalls ... spec says to avoid that */
@@ -543,22 +543,20 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* we know alt == 0 */
if (intf == rndis->ctrl_id) {
- if (rndis->notify->driver_data) {
- VDBG(cdev, "reset rndis control %d\n", intf);
- usb_ep_disable(rndis->notify);
- }
+ VDBG(cdev, "reset rndis control %d\n", intf);
+ usb_ep_disable(rndis->notify);
+
if (!rndis->notify->desc) {
VDBG(cdev, "init rndis ctrl %d\n", intf);
if (config_ep_by_speed(cdev->gadget, f, rndis->notify))
goto fail;
}
usb_ep_enable(rndis->notify);
- rndis->notify->driver_data = rndis;
} else if (intf == rndis->data_id) {
struct net_device *net;
- if (rndis->port.in_ep->driver_data) {
+ if (rndis->port.in_ep->enabled) {
DBG(cdev, "reset rndis\n");
gether_disconnect(&rndis->port);
}
@@ -597,7 +595,7 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
if (IS_ERR(net))
return PTR_ERR(net);
- rndis_set_param_dev(rndis->config, net,
+ rndis_set_param_dev(rndis->params, net,
&rndis->port.cdc_filter);
} else
goto fail;
@@ -612,16 +610,15 @@ static void rndis_disable(struct usb_function *f)
struct f_rndis *rndis = func_to_rndis(f);
struct usb_composite_dev *cdev = f->config->cdev;
- if (!rndis->notify->driver_data)
+ if (!rndis->notify->enabled)
return;
DBG(cdev, "rndis deactivated\n");
- rndis_uninit(rndis->config);
+ rndis_uninit(rndis->params);
gether_disconnect(&rndis->port);
usb_ep_disable(rndis->notify);
- rndis->notify->driver_data = NULL;
}
/*-------------------------------------------------------------------------*/
@@ -640,9 +637,9 @@ static void rndis_open(struct gether *geth)
DBG(cdev, "%s\n", __func__);
- rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3,
+ rndis_set_param_medium(rndis->params, RNDIS_MEDIUM_802_3,
bitrate(cdev->gadget) / 100);
- rndis_signal_connect(rndis->config);
+ rndis_signal_connect(rndis->params);
}
static void rndis_close(struct gether *geth)
@@ -651,8 +648,8 @@ static void rndis_close(struct gether *geth)
DBG(geth->func.config->cdev, "%s\n", __func__);
- rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0);
- rndis_signal_disconnect(rndis->config);
+ rndis_set_param_medium(rndis->params, RNDIS_MEDIUM_802_3, 0);
+ rndis_signal_disconnect(rndis->params);
}
/*-------------------------------------------------------------------------*/
@@ -745,13 +742,11 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
rndis->port.in_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_out_desc);
if (!ep)
goto fail;
rndis->port.out_ep = ep;
- ep->driver_data = cdev; /* claim */
/* NOTE: a status/notification endpoint is, strictly speaking,
* optional. We don't treat it that way though! It's simpler,
@@ -761,7 +756,6 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
rndis->notify = ep;
- ep->driver_data = cdev; /* claim */
status = -ENOMEM;
@@ -796,11 +790,11 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
rndis->port.open = rndis_open;
rndis->port.close = rndis_close;
- rndis_set_param_medium(rndis->config, RNDIS_MEDIUM_802_3, 0);
- rndis_set_host_mac(rndis->config, rndis->ethaddr);
+ rndis_set_param_medium(rndis->params, RNDIS_MEDIUM_802_3, 0);
+ rndis_set_host_mac(rndis->params, rndis->ethaddr);
if (rndis->manufacturer && rndis->vendorID &&
- rndis_set_param_vendor(rndis->config, rndis->vendorID,
+ rndis_set_param_vendor(rndis->params, rndis->vendorID,
rndis->manufacturer)) {
status = -EINVAL;
goto fail_free_descs;
@@ -829,14 +823,6 @@ fail:
usb_ep_free_request(rndis->notify, rndis->notify_req);
}
- /* we might as well release our claims on endpoints */
- if (rndis->notify)
- rndis->notify->driver_data = NULL;
- if (rndis->port.out_ep)
- rndis->port.out_ep->driver_data = NULL;
- if (rndis->port.in_ep)
- rndis->port.in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -878,10 +864,10 @@ USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(rndis);
USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(rndis);
static struct configfs_attribute *rndis_attrs[] = {
- &f_rndis_opts_dev_addr.attr,
- &f_rndis_opts_host_addr.attr,
- &f_rndis_opts_qmult.attr,
- &f_rndis_opts_ifname.attr,
+ &rndis_opts_attr_dev_addr,
+ &rndis_opts_attr_host_addr,
+ &rndis_opts_attr_qmult,
+ &rndis_opts_attr_ifname,
NULL,
};
@@ -944,7 +930,7 @@ static void rndis_free(struct usb_function *f)
struct f_rndis_opts *opts;
rndis = func_to_rndis(f);
- rndis_deregister(rndis->config);
+ rndis_deregister(rndis->params);
opts = container_of(f->fi, struct f_rndis_opts, func_inst);
kfree(rndis);
mutex_lock(&opts->lock);
@@ -968,7 +954,7 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi)
{
struct f_rndis *rndis;
struct f_rndis_opts *opts;
- int status;
+ struct rndis_params *params;
/* allocate and initialize one new instance */
rndis = kzalloc(sizeof(*rndis), GFP_KERNEL);
@@ -1002,36 +988,16 @@ static struct usb_function *rndis_alloc(struct usb_function_instance *fi)
rndis->port.func.disable = rndis_disable;
rndis->port.func.free_func = rndis_free;
- status = rndis_register(rndis_response_available, rndis);
- if (status < 0) {
+ params = rndis_register(rndis_response_available, rndis);
+ if (IS_ERR(params)) {
kfree(rndis);
- return ERR_PTR(status);
+ return ERR_CAST(params);
}
- rndis->config = status;
+ rndis->params = params;
return &rndis->port.func;
}
-DECLARE_USB_FUNCTION(rndis, rndis_alloc_inst, rndis_alloc);
-
-static int __init rndis_mod_init(void)
-{
- int ret;
-
- ret = rndis_init();
- if (ret)
- return ret;
-
- return usb_function_register(&rndisusb_func);
-}
-module_init(rndis_mod_init);
-
-static void __exit rndis_mod_exit(void)
-{
- usb_function_unregister(&rndisusb_func);
- rndis_exit();
-}
-module_exit(rndis_mod_exit);
-
+DECLARE_USB_FUNCTION_INIT(rndis, rndis_alloc_inst, rndis_alloc);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Brownell");
diff --git a/kernel/drivers/usb/gadget/function/f_serial.c b/kernel/drivers/usb/gadget/function/f_serial.c
index 2e02dfabc..6bb44d613 100644
--- a/kernel/drivers/usb/gadget/function/f_serial.c
+++ b/kernel/drivers/usb/gadget/function/f_serial.c
@@ -16,7 +16,6 @@
#include <linux/device.h>
#include "u_serial.h"
-#include "gadget_chips.h"
/*
@@ -154,7 +153,7 @@ static int gser_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* we know alt == 0, so this is an activation or a reset */
- if (gser->port.in->driver_data) {
+ if (gser->port.in->enabled) {
dev_dbg(&cdev->gadget->dev,
"reset generic ttyGS%d\n", gser->port_num);
gserial_disconnect(&gser->port);
@@ -220,13 +219,11 @@ static int gser_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
gser->port.in = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &gser_fs_out_desc);
if (!ep)
goto fail;
gser->port.out = ep;
- ep->driver_data = cdev; /* claim */
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
@@ -250,12 +247,6 @@ static int gser_bind(struct usb_configuration *c, struct usb_function *f)
return 0;
fail:
- /* we might as well release our claims on endpoints */
- if (gser->port.out)
- gser->port.out->driver_data = NULL;
- if (gser->port.in)
- gser->port.in->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -267,22 +258,6 @@ static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_serial_opts);
-static ssize_t f_serial_attr_show(struct config_item *item,
- struct configfs_attribute *attr,
- char *page)
-{
- struct f_serial_opts *opts = to_f_serial_opts(item);
- struct f_serial_opts_attribute *f_serial_opts_attr =
- container_of(attr, struct f_serial_opts_attribute, attr);
- ssize_t ret = 0;
-
- if (f_serial_opts_attr->show)
- ret = f_serial_opts_attr->show(opts, page);
-
- return ret;
-}
-
static void serial_attr_release(struct config_item *item)
{
struct f_serial_opts *opts = to_f_serial_opts(item);
@@ -292,19 +267,17 @@ static void serial_attr_release(struct config_item *item)
static struct configfs_item_operations serial_item_ops = {
.release = serial_attr_release,
- .show_attribute = f_serial_attr_show,
};
-static ssize_t f_serial_port_num_show(struct f_serial_opts *opts, char *page)
+static ssize_t f_serial_port_num_show(struct config_item *item, char *page)
{
- return sprintf(page, "%u\n", opts->port_num);
+ return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num);
}
-static struct f_serial_opts_attribute f_serial_port_num =
- __CONFIGFS_ATTR_RO(port_num, f_serial_port_num_show);
+CONFIGFS_ATTR_RO(f_serial_, port_num);
static struct configfs_attribute *acm_attrs[] = {
- &f_serial_port_num.attr,
+ &f_serial_attr_port_num,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_sourcesink.c b/kernel/drivers/usb/gadget/function/f_sourcesink.c
index 3a5ae9900..9f3ced62d 100644
--- a/kernel/drivers/usb/gadget/function/f_sourcesink.c
+++ b/kernel/drivers/usb/gadget/function/f_sourcesink.c
@@ -20,7 +20,6 @@
#include <linux/err.h>
#include "g_zero.h"
-#include "gadget_chips.h"
#include "u_f.h"
/*
@@ -42,11 +41,6 @@
* queues are relatively independent, will receive a range of packet sizes,
* and can often be made to run out completely. Those issues are important
* when stress testing peripheral controller drivers.
- *
- *
- * This is currently packaged as a configuration driver, which can't be
- * combined with other functions to make composite devices. However, it
- * can be combined with other independent configurations.
*/
struct f_sourcesink {
struct usb_function function;
@@ -56,6 +50,13 @@ struct f_sourcesink {
struct usb_ep *iso_in_ep;
struct usb_ep *iso_out_ep;
int cur_alt;
+
+ unsigned pattern;
+ unsigned isoc_interval;
+ unsigned isoc_maxpacket;
+ unsigned isoc_mult;
+ unsigned isoc_maxburst;
+ unsigned buflen;
};
static inline struct f_sourcesink *func_to_ss(struct usb_function *f)
@@ -63,13 +64,6 @@ static inline struct f_sourcesink *func_to_ss(struct usb_function *f)
return container_of(f, struct f_sourcesink, function);
}
-static unsigned pattern;
-static unsigned isoc_interval;
-static unsigned isoc_maxpacket;
-static unsigned isoc_mult;
-static unsigned isoc_maxburst;
-static unsigned buflen;
-
/*-------------------------------------------------------------------------*/
static struct usb_interface_descriptor source_sink_intf_alt0 = {
@@ -304,7 +298,9 @@ static struct usb_gadget_strings *sourcesink_strings[] = {
static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len)
{
- return alloc_ep_req(ep, len, buflen);
+ struct f_sourcesink *ss = ep->driver_data;
+
+ return alloc_ep_req(ep, len, ss->buflen);
}
void free_ep_req(struct usb_ep *ep, struct usb_request *req)
@@ -317,13 +313,9 @@ static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep)
{
int value;
- if (ep->driver_data) {
- value = usb_ep_disable(ep);
- if (value < 0)
- DBG(cdev, "disable %s --> %d\n",
- ep->name, value);
- ep->driver_data = NULL;
- }
+ value = usb_ep_disable(ep);
+ if (value < 0)
+ DBG(cdev, "disable %s --> %d\n", ep->name, value);
}
void disable_endpoints(struct usb_composite_dev *cdev,
@@ -361,42 +353,37 @@ autoconf_fail:
f->name, cdev->gadget->name);
return -ENODEV;
}
- ss->in_ep->driver_data = cdev; /* claim */
ss->out_ep = usb_ep_autoconfig(cdev->gadget, &fs_sink_desc);
if (!ss->out_ep)
goto autoconf_fail;
- ss->out_ep->driver_data = cdev; /* claim */
/* sanity check the isoc module parameters */
- if (isoc_interval < 1)
- isoc_interval = 1;
- if (isoc_interval > 16)
- isoc_interval = 16;
- if (isoc_mult > 2)
- isoc_mult = 2;
- if (isoc_maxburst > 15)
- isoc_maxburst = 15;
+ if (ss->isoc_interval < 1)
+ ss->isoc_interval = 1;
+ if (ss->isoc_interval > 16)
+ ss->isoc_interval = 16;
+ if (ss->isoc_mult > 2)
+ ss->isoc_mult = 2;
+ if (ss->isoc_maxburst > 15)
+ ss->isoc_maxburst = 15;
/* fill in the FS isoc descriptors from the module parameters */
- fs_iso_source_desc.wMaxPacketSize = isoc_maxpacket > 1023 ?
- 1023 : isoc_maxpacket;
- fs_iso_source_desc.bInterval = isoc_interval;
- fs_iso_sink_desc.wMaxPacketSize = isoc_maxpacket > 1023 ?
- 1023 : isoc_maxpacket;
- fs_iso_sink_desc.bInterval = isoc_interval;
+ fs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ?
+ 1023 : ss->isoc_maxpacket;
+ fs_iso_source_desc.bInterval = ss->isoc_interval;
+ fs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket > 1023 ?
+ 1023 : ss->isoc_maxpacket;
+ fs_iso_sink_desc.bInterval = ss->isoc_interval;
/* allocate iso endpoints */
ss->iso_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_source_desc);
if (!ss->iso_in_ep)
goto no_iso;
- ss->iso_in_ep->driver_data = cdev; /* claim */
ss->iso_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_iso_sink_desc);
- if (ss->iso_out_ep) {
- ss->iso_out_ep->driver_data = cdev; /* claim */
- } else {
- ss->iso_in_ep->driver_data = NULL;
+ if (!ss->iso_out_ep) {
+ usb_ep_autoconfig_release(ss->iso_in_ep);
ss->iso_in_ep = NULL;
no_iso:
/*
@@ -409,8 +396,8 @@ no_iso:
ss_source_sink_descs[SS_ALT_IFC_1_OFFSET] = NULL;
}
- if (isoc_maxpacket > 1024)
- isoc_maxpacket = 1024;
+ if (ss->isoc_maxpacket > 1024)
+ ss->isoc_maxpacket = 1024;
/* support high speed hardware */
hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress;
@@ -421,15 +408,15 @@ no_iso:
* We assume that the user knows what they are doing and won't
* give parameters that their UDC doesn't support.
*/
- hs_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
- hs_iso_source_desc.wMaxPacketSize |= isoc_mult << 11;
- hs_iso_source_desc.bInterval = isoc_interval;
+ hs_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket;
+ hs_iso_source_desc.wMaxPacketSize |= ss->isoc_mult << 11;
+ hs_iso_source_desc.bInterval = ss->isoc_interval;
hs_iso_source_desc.bEndpointAddress =
fs_iso_source_desc.bEndpointAddress;
- hs_iso_sink_desc.wMaxPacketSize = isoc_maxpacket;
- hs_iso_sink_desc.wMaxPacketSize |= isoc_mult << 11;
- hs_iso_sink_desc.bInterval = isoc_interval;
+ hs_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket;
+ hs_iso_sink_desc.wMaxPacketSize |= ss->isoc_mult << 11;
+ hs_iso_sink_desc.bInterval = ss->isoc_interval;
hs_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
/* support super speed hardware */
@@ -443,21 +430,21 @@ no_iso:
* We assume that the user knows what they are doing and won't
* give parameters that their UDC doesn't support.
*/
- ss_iso_source_desc.wMaxPacketSize = isoc_maxpacket;
- ss_iso_source_desc.bInterval = isoc_interval;
- ss_iso_source_comp_desc.bmAttributes = isoc_mult;
- ss_iso_source_comp_desc.bMaxBurst = isoc_maxburst;
- ss_iso_source_comp_desc.wBytesPerInterval =
- isoc_maxpacket * (isoc_mult + 1) * (isoc_maxburst + 1);
+ ss_iso_source_desc.wMaxPacketSize = ss->isoc_maxpacket;
+ ss_iso_source_desc.bInterval = ss->isoc_interval;
+ ss_iso_source_comp_desc.bmAttributes = ss->isoc_mult;
+ ss_iso_source_comp_desc.bMaxBurst = ss->isoc_maxburst;
+ ss_iso_source_comp_desc.wBytesPerInterval = ss->isoc_maxpacket *
+ (ss->isoc_mult + 1) * (ss->isoc_maxburst + 1);
ss_iso_source_desc.bEndpointAddress =
fs_iso_source_desc.bEndpointAddress;
- ss_iso_sink_desc.wMaxPacketSize = isoc_maxpacket;
- ss_iso_sink_desc.bInterval = isoc_interval;
- ss_iso_sink_comp_desc.bmAttributes = isoc_mult;
- ss_iso_sink_comp_desc.bMaxBurst = isoc_maxburst;
- ss_iso_sink_comp_desc.wBytesPerInterval =
- isoc_maxpacket * (isoc_mult + 1) * (isoc_maxburst + 1);
+ ss_iso_sink_desc.wMaxPacketSize = ss->isoc_maxpacket;
+ ss_iso_sink_desc.bInterval = ss->isoc_interval;
+ ss_iso_sink_comp_desc.bmAttributes = ss->isoc_mult;
+ ss_iso_sink_comp_desc.bMaxBurst = ss->isoc_maxburst;
+ ss_iso_sink_comp_desc.wBytesPerInterval = ss->isoc_maxpacket *
+ (ss->isoc_mult + 1) * (ss->isoc_maxburst + 1);
ss_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress;
ret = usb_assign_descriptors(f, fs_source_sink_descs,
@@ -495,12 +482,13 @@ static int check_read_data(struct f_sourcesink *ss, struct usb_request *req)
unsigned i;
u8 *buf = req->buf;
struct usb_composite_dev *cdev = ss->function.config->cdev;
+ int max_packet_size = le16_to_cpu(ss->out_ep->desc->wMaxPacketSize);
- if (pattern == 2)
+ if (ss->pattern == 2)
return 0;
for (i = 0; i < req->actual; i++, buf++) {
- switch (pattern) {
+ switch (ss->pattern) {
/* all-zeroes has no synchronization issues */
case 0:
@@ -516,7 +504,7 @@ static int check_read_data(struct f_sourcesink *ss, struct usb_request *req)
* stutter for any reason, including buffer duplication...)
*/
case 1:
- if (*buf == (u8)(i % 63))
+ if (*buf == (u8)((i % max_packet_size) % 63))
continue;
break;
}
@@ -531,14 +519,16 @@ static void reinit_write_data(struct usb_ep *ep, struct usb_request *req)
{
unsigned i;
u8 *buf = req->buf;
+ int max_packet_size = le16_to_cpu(ep->desc->wMaxPacketSize);
+ struct f_sourcesink *ss = ep->driver_data;
- switch (pattern) {
+ switch (ss->pattern) {
case 0:
memset(req->buf, 0, req->length);
break;
case 1:
for (i = 0; i < req->length; i++)
- *buf++ = (u8) (i % 63);
+ *buf++ = (u8) ((i % max_packet_size) % 63);
break;
case 2:
break;
@@ -562,7 +552,7 @@ static void source_sink_complete(struct usb_ep *ep, struct usb_request *req)
case 0: /* normal completion? */
if (ep == ss->out_ep) {
check_read_data(ss, req);
- if (pattern != 2)
+ if (ss->pattern != 2)
memset(req->buf, 0x55, req->length);
}
break;
@@ -611,15 +601,16 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
if (is_iso) {
switch (speed) {
case USB_SPEED_SUPER:
- size = isoc_maxpacket * (isoc_mult + 1) *
- (isoc_maxburst + 1);
+ size = ss->isoc_maxpacket *
+ (ss->isoc_mult + 1) *
+ (ss->isoc_maxburst + 1);
break;
case USB_SPEED_HIGH:
- size = isoc_maxpacket * (isoc_mult + 1);
+ size = ss->isoc_maxpacket * (ss->isoc_mult + 1);
break;
default:
- size = isoc_maxpacket > 1023 ?
- 1023 : isoc_maxpacket;
+ size = ss->isoc_maxpacket > 1023 ?
+ 1023 : ss->isoc_maxpacket;
break;
}
ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
@@ -635,7 +626,7 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
req->complete = source_sink_complete;
if (is_in)
reinit_write_data(ep, req);
- else if (pattern != 2)
+ else if (ss->pattern != 2)
memset(req->buf, 0x55, req->length);
status = usb_ep_queue(ep, req, GFP_ATOMIC);
@@ -689,7 +680,6 @@ enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss,
fail:
ep = ss->in_ep;
usb_ep_disable(ep);
- ep->driver_data = NULL;
return result;
}
@@ -708,7 +698,6 @@ fail:
fail2:
ep = ss->out_ep;
usb_ep_disable(ep);
- ep->driver_data = NULL;
goto fail;
}
@@ -730,10 +719,8 @@ fail2:
if (result < 0) {
fail3:
ep = ss->iso_in_ep;
- if (ep) {
+ if (ep)
usb_ep_disable(ep);
- ep->driver_data = NULL;
- }
goto fail2;
}
}
@@ -752,7 +739,6 @@ fail3:
result = source_sink_start_ep(ss, false, true, speed);
if (result < 0) {
usb_ep_disable(ep);
- ep->driver_data = NULL;
goto fail3;
}
}
@@ -769,8 +755,7 @@ static int sourcesink_set_alt(struct usb_function *f,
struct f_sourcesink *ss = func_to_ss(f);
struct usb_composite_dev *cdev = f->config->cdev;
- if (ss->in_ep->driver_data)
- disable_source_sink(ss);
+ disable_source_sink(ss);
return enable_source_sink(cdev, ss, alt);
}
@@ -878,12 +863,12 @@ static struct usb_function *source_sink_alloc_func(
ss_opts->refcnt++;
mutex_unlock(&ss_opts->lock);
- pattern = ss_opts->pattern;
- isoc_interval = ss_opts->isoc_interval;
- isoc_maxpacket = ss_opts->isoc_maxpacket;
- isoc_mult = ss_opts->isoc_mult;
- isoc_maxburst = ss_opts->isoc_maxburst;
- buflen = ss_opts->bulk_buflen;
+ ss->pattern = ss_opts->pattern;
+ ss->isoc_interval = ss_opts->isoc_interval;
+ ss->isoc_maxpacket = ss_opts->isoc_maxpacket;
+ ss->isoc_mult = ss_opts->isoc_mult;
+ ss->isoc_maxburst = ss_opts->isoc_maxburst;
+ ss->buflen = ss_opts->bulk_buflen;
ss->function.name = "source/sink";
ss->function.bind = sourcesink_bind;
@@ -904,9 +889,6 @@ static inline struct f_ss_opts *to_f_ss_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_ss_opts);
-CONFIGFS_ATTR_OPS(f_ss_opts);
-
static void ss_attr_release(struct config_item *item)
{
struct f_ss_opts *ss_opts = to_f_ss_opts(item);
@@ -916,24 +898,24 @@ static void ss_attr_release(struct config_item *item)
static struct configfs_item_operations ss_item_ops = {
.release = ss_attr_release,
- .show_attribute = f_ss_opts_attr_show,
- .store_attribute = f_ss_opts_attr_store,
};
-static ssize_t f_ss_opts_pattern_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_pattern_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->pattern);
+ result = sprintf(page, "%u\n", opts->pattern);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_pattern_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_pattern_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u8 num;
@@ -959,25 +941,24 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_pattern =
- __CONFIGFS_ATTR(pattern, S_IRUGO | S_IWUSR,
- f_ss_opts_pattern_show,
- f_ss_opts_pattern_store);
+CONFIGFS_ATTR(f_ss_opts_, pattern);
-static ssize_t f_ss_opts_isoc_interval_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_isoc_interval_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->isoc_interval);
+ result = sprintf(page, "%u\n", opts->isoc_interval);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_isoc_interval_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_isoc_interval_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u8 num;
@@ -1003,25 +984,24 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_isoc_interval =
- __CONFIGFS_ATTR(isoc_interval, S_IRUGO | S_IWUSR,
- f_ss_opts_isoc_interval_show,
- f_ss_opts_isoc_interval_store);
+CONFIGFS_ATTR(f_ss_opts_, isoc_interval);
-static ssize_t f_ss_opts_isoc_maxpacket_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_isoc_maxpacket_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->isoc_maxpacket);
+ result = sprintf(page, "%u\n", opts->isoc_maxpacket);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_isoc_maxpacket_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_isoc_maxpacket_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u16 num;
@@ -1047,25 +1027,24 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_isoc_maxpacket =
- __CONFIGFS_ATTR(isoc_maxpacket, S_IRUGO | S_IWUSR,
- f_ss_opts_isoc_maxpacket_show,
- f_ss_opts_isoc_maxpacket_store);
+CONFIGFS_ATTR(f_ss_opts_, isoc_maxpacket);
-static ssize_t f_ss_opts_isoc_mult_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_isoc_mult_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->isoc_mult);
+ result = sprintf(page, "%u\n", opts->isoc_mult);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_isoc_mult_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_isoc_mult_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u8 num;
@@ -1091,25 +1070,24 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_isoc_mult =
- __CONFIGFS_ATTR(isoc_mult, S_IRUGO | S_IWUSR,
- f_ss_opts_isoc_mult_show,
- f_ss_opts_isoc_mult_store);
+CONFIGFS_ATTR(f_ss_opts_, isoc_mult);
-static ssize_t f_ss_opts_isoc_maxburst_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_isoc_maxburst_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->isoc_maxburst);
+ result = sprintf(page, "%u\n", opts->isoc_maxburst);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_isoc_maxburst_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_isoc_maxburst_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u8 num;
@@ -1135,25 +1113,24 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_isoc_maxburst =
- __CONFIGFS_ATTR(isoc_maxburst, S_IRUGO | S_IWUSR,
- f_ss_opts_isoc_maxburst_show,
- f_ss_opts_isoc_maxburst_store);
+CONFIGFS_ATTR(f_ss_opts_, isoc_maxburst);
-static ssize_t f_ss_opts_bulk_buflen_show(struct f_ss_opts *opts, char *page)
+static ssize_t f_ss_opts_bulk_buflen_show(struct config_item *item, char *page)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int result;
mutex_lock(&opts->lock);
- result = sprintf(page, "%u", opts->bulk_buflen);
+ result = sprintf(page, "%u\n", opts->bulk_buflen);
mutex_unlock(&opts->lock);
return result;
}
-static ssize_t f_ss_opts_bulk_buflen_store(struct f_ss_opts *opts,
+static ssize_t f_ss_opts_bulk_buflen_store(struct config_item *item,
const char *page, size_t len)
{
+ struct f_ss_opts *opts = to_f_ss_opts(item);
int ret;
u32 num;
@@ -1174,18 +1151,15 @@ end:
return ret;
}
-static struct f_ss_opts_attribute f_ss_opts_bulk_buflen =
- __CONFIGFS_ATTR(buflen, S_IRUGO | S_IWUSR,
- f_ss_opts_bulk_buflen_show,
- f_ss_opts_bulk_buflen_store);
+CONFIGFS_ATTR(f_ss_opts_, bulk_buflen);
static struct configfs_attribute *ss_attrs[] = {
- &f_ss_opts_pattern.attr,
- &f_ss_opts_isoc_interval.attr,
- &f_ss_opts_isoc_maxpacket.attr,
- &f_ss_opts_isoc_mult.attr,
- &f_ss_opts_isoc_maxburst.attr,
- &f_ss_opts_bulk_buflen.attr,
+ &f_ss_opts_attr_pattern,
+ &f_ss_opts_attr_isoc_interval,
+ &f_ss_opts_attr_isoc_maxpacket,
+ &f_ss_opts_attr_isoc_mult,
+ &f_ss_opts_attr_isoc_maxburst,
+ &f_ss_opts_attr_bulk_buflen,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_subset.c b/kernel/drivers/usb/gadget/function/f_subset.c
index e3dfa675f..829c78de9 100644
--- a/kernel/drivers/usb/gadget/function/f_subset.c
+++ b/kernel/drivers/usb/gadget/function/f_subset.c
@@ -262,7 +262,7 @@ static int geth_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
/* we know alt == 0, so this is an activation or a reset */
- if (geth->port.in_ep->driver_data) {
+ if (geth->port.in_ep->enabled) {
DBG(cdev, "reset cdc subset\n");
gether_disconnect(&geth->port);
}
@@ -343,13 +343,11 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
if (!ep)
goto fail;
geth->port.in_ep = ep;
- ep->driver_data = cdev; /* claim */
ep = usb_ep_autoconfig(cdev->gadget, &fs_subset_out_desc);
if (!ep)
goto fail;
geth->port.out_ep = ep;
- ep->driver_data = cdev; /* claim */
/* support all relevant hardware speeds... we expect that when
* hardware is dual speed, all bulk-capable endpoints work at
@@ -380,12 +378,6 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
return 0;
fail:
- /* we might as well release our claims on endpoints */
- if (geth->port.out_ep)
- geth->port.out_ep->driver_data = NULL;
- if (geth->port.in_ep)
- geth->port.in_ep->driver_data = NULL;
-
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);
return status;
@@ -413,10 +405,10 @@ USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(gether);
USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(gether);
static struct configfs_attribute *gether_attrs[] = {
- &f_gether_opts_dev_addr.attr,
- &f_gether_opts_host_addr.attr,
- &f_gether_opts_qmult.attr,
- &f_gether_opts_ifname.attr,
+ &gether_opts_attr_dev_addr,
+ &gether_opts_attr_host_addr,
+ &gether_opts_attr_qmult,
+ &gether_opts_attr_ifname,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_uac1.c b/kernel/drivers/usb/gadget/function/f_uac1.c
index 7856b3394..6a2346b99 100644
--- a/kernel/drivers/usb/gadget/function/f_uac1.c
+++ b/kernel/drivers/usb/gadget/function/f_uac1.c
@@ -593,7 +593,6 @@ static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
return err;
usb_ep_enable(out_ep);
- out_ep->driver_data = audio;
audio->copy_buf = f_audio_buffer_alloc(audio_buf_size);
if (IS_ERR(audio->copy_buf))
return -ENOMEM;
@@ -718,7 +717,6 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f)
goto fail;
audio->out_ep = ep;
audio->out_ep->desc = &as_out_ep_desc;
- ep->driver_data = cdev; /* claim */
status = -ENOMEM;
@@ -730,8 +728,6 @@ f_audio_bind(struct usb_configuration *c, struct usb_function *f)
fail:
gaudio_cleanup(&audio->card);
- if (ep)
- ep->driver_data = NULL;
return status;
}
@@ -773,9 +769,6 @@ static inline struct f_uac1_opts *to_f_uac1_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_uac1_opts);
-CONFIGFS_ATTR_OPS(f_uac1_opts);
-
static void f_uac1_attr_release(struct config_item *item)
{
struct f_uac1_opts *opts = to_f_uac1_opts(item);
@@ -785,14 +778,13 @@ static void f_uac1_attr_release(struct config_item *item)
static struct configfs_item_operations f_uac1_item_ops = {
.release = f_uac1_attr_release,
- .show_attribute = f_uac1_opts_attr_show,
- .store_attribute = f_uac1_opts_attr_store,
};
#define UAC1_INT_ATTRIBUTE(name) \
-static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts, \
+static ssize_t f_uac1_opts_##name##_show(struct config_item *item, \
char *page) \
{ \
+ struct f_uac1_opts *opts = to_f_uac1_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -802,9 +794,10 @@ static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts, \
return result; \
} \
\
-static ssize_t f_uac1_opts_##name##_store(struct f_uac1_opts *opts, \
+static ssize_t f_uac1_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_uac1_opts *opts = to_f_uac1_opts(item); \
int ret; \
u32 num; \
\
@@ -826,19 +819,17 @@ end: \
return ret; \
} \
\
-static struct f_uac1_opts_attribute f_uac1_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \
- f_uac1_opts_##name##_show, \
- f_uac1_opts_##name##_store)
+CONFIGFS_ATTR(f_uac1_opts_, name)
UAC1_INT_ATTRIBUTE(req_buf_size);
UAC1_INT_ATTRIBUTE(req_count);
UAC1_INT_ATTRIBUTE(audio_buf_size);
#define UAC1_STR_ATTRIBUTE(name) \
-static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts, \
+static ssize_t f_uac1_opts_##name##_show(struct config_item *item, \
char *page) \
{ \
+ struct f_uac1_opts *opts = to_f_uac1_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -848,9 +839,10 @@ static ssize_t f_uac1_opts_##name##_show(struct f_uac1_opts *opts, \
return result; \
} \
\
-static ssize_t f_uac1_opts_##name##_store(struct f_uac1_opts *opts, \
+static ssize_t f_uac1_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_uac1_opts *opts = to_f_uac1_opts(item); \
int ret = -EBUSY; \
char *tmp; \
\
@@ -874,22 +866,19 @@ end: \
return ret; \
} \
\
-static struct f_uac1_opts_attribute f_uac1_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \
- f_uac1_opts_##name##_show, \
- f_uac1_opts_##name##_store)
+CONFIGFS_ATTR(f_uac1_opts_, name)
UAC1_STR_ATTRIBUTE(fn_play);
UAC1_STR_ATTRIBUTE(fn_cap);
UAC1_STR_ATTRIBUTE(fn_cntl);
static struct configfs_attribute *f_uac1_attrs[] = {
- &f_uac1_opts_req_buf_size.attr,
- &f_uac1_opts_req_count.attr,
- &f_uac1_opts_audio_buf_size.attr,
- &f_uac1_opts_fn_play.attr,
- &f_uac1_opts_fn_cap.attr,
- &f_uac1_opts_fn_cntl.attr,
+ &f_uac1_opts_attr_req_buf_size,
+ &f_uac1_opts_attr_req_count,
+ &f_uac1_opts_attr_audio_buf_size,
+ &f_uac1_opts_attr_fn_play,
+ &f_uac1_opts_attr_fn_cap,
+ &f_uac1_opts_attr_fn_cntl,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/f_uac2.c b/kernel/drivers/usb/gadget/function/f_uac2.c
index 96d935b00..044ca79d3 100644
--- a/kernel/drivers/usb/gadget/function/f_uac2.c
+++ b/kernel/drivers/usb/gadget/function/f_uac2.c
@@ -994,7 +994,7 @@ static void set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts,
max_packet_size = num_channels(chmask) * ssize *
DIV_ROUND_UP(srate, factor / (1 << (ep_desc->bInterval - 1)));
- ep_desc->wMaxPacketSize = cpu_to_le16(min(max_packet_size,
+ ep_desc->wMaxPacketSize = cpu_to_le16(min_t(u16, max_packet_size,
le16_to_cpu(ep_desc->wMaxPacketSize)));
}
@@ -1081,14 +1081,12 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
goto err;
}
- agdev->out_ep->driver_data = agdev;
agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
if (!agdev->in_ep) {
dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
goto err;
}
- agdev->in_ep->driver_data = agdev;
uac2->p_prm.uac2 = uac2;
uac2->c_prm.uac2 = uac2;
@@ -1132,10 +1130,6 @@ err_free_descs:
err:
kfree(agdev->uac2.p_prm.rbuf);
kfree(agdev->uac2.c_prm.rbuf);
- if (agdev->in_ep)
- agdev->in_ep->driver_data = NULL;
- if (agdev->out_ep)
- agdev->out_ep->driver_data = NULL;
return -EINVAL;
}
@@ -1445,9 +1439,6 @@ static inline struct f_uac2_opts *to_f_uac2_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_uac2_opts);
-CONFIGFS_ATTR_OPS(f_uac2_opts);
-
static void f_uac2_attr_release(struct config_item *item)
{
struct f_uac2_opts *opts = to_f_uac2_opts(item);
@@ -1457,14 +1448,13 @@ static void f_uac2_attr_release(struct config_item *item)
static struct configfs_item_operations f_uac2_item_ops = {
.release = f_uac2_attr_release,
- .show_attribute = f_uac2_opts_attr_show,
- .store_attribute = f_uac2_opts_attr_store,
};
#define UAC2_ATTRIBUTE(name) \
-static ssize_t f_uac2_opts_##name##_show(struct f_uac2_opts *opts, \
+static ssize_t f_uac2_opts_##name##_show(struct config_item *item, \
char *page) \
{ \
+ struct f_uac2_opts *opts = to_f_uac2_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -1474,9 +1464,10 @@ static ssize_t f_uac2_opts_##name##_show(struct f_uac2_opts *opts, \
return result; \
} \
\
-static ssize_t f_uac2_opts_##name##_store(struct f_uac2_opts *opts, \
+static ssize_t f_uac2_opts_##name##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_uac2_opts *opts = to_f_uac2_opts(item); \
int ret; \
u32 num; \
\
@@ -1498,10 +1489,7 @@ end: \
return ret; \
} \
\
-static struct f_uac2_opts_attribute f_uac2_opts_##name = \
- __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \
- f_uac2_opts_##name##_show, \
- f_uac2_opts_##name##_store)
+CONFIGFS_ATTR(f_uac2_opts_, name)
UAC2_ATTRIBUTE(p_chmask);
UAC2_ATTRIBUTE(p_srate);
@@ -1511,12 +1499,12 @@ UAC2_ATTRIBUTE(c_srate);
UAC2_ATTRIBUTE(c_ssize);
static struct configfs_attribute *f_uac2_attrs[] = {
- &f_uac2_opts_p_chmask.attr,
- &f_uac2_opts_p_srate.attr,
- &f_uac2_opts_p_ssize.attr,
- &f_uac2_opts_c_chmask.attr,
- &f_uac2_opts_c_srate.attr,
- &f_uac2_opts_c_ssize.attr,
+ &f_uac2_opts_attr_p_chmask,
+ &f_uac2_opts_attr_p_srate,
+ &f_uac2_opts_attr_p_ssize,
+ &f_uac2_opts_attr_c_chmask,
+ &f_uac2_opts_attr_c_srate,
+ &f_uac2_opts_attr_c_ssize,
NULL,
};
@@ -1583,11 +1571,6 @@ static void afunc_unbind(struct usb_configuration *c, struct usb_function *f)
prm = &agdev->uac2.c_prm;
kfree(prm->rbuf);
usb_free_all_descriptors(f);
-
- if (agdev->in_ep)
- agdev->in_ep->driver_data = NULL;
- if (agdev->out_ep)
- agdev->out_ep->driver_data = NULL;
}
static struct usb_function *afunc_alloc(struct usb_function_instance *fi)
diff --git a/kernel/drivers/usb/gadget/function/f_uvc.c b/kernel/drivers/usb/gadget/function/f_uvc.c
index cf0df8fbb..29b41b5de 100644
--- a/kernel/drivers/usb/gadget/function/f_uvc.c
+++ b/kernel/drivers/usb/gadget/function/f_uvc.c
@@ -280,7 +280,7 @@ uvc_function_get_alt(struct usb_function *f, unsigned interface)
else if (interface != uvc->streaming_intf)
return -EINVAL;
else
- return uvc->video.ep->driver_data ? 1 : 0;
+ return uvc->video.ep->enabled ? 1 : 0;
}
static int
@@ -298,18 +298,14 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
if (alt)
return -EINVAL;
- if (uvc->control_ep->driver_data) {
- INFO(cdev, "reset UVC Control\n");
- usb_ep_disable(uvc->control_ep);
- uvc->control_ep->driver_data = NULL;
- }
+ INFO(cdev, "reset UVC Control\n");
+ usb_ep_disable(uvc->control_ep);
if (!uvc->control_ep->desc)
if (config_ep_by_speed(cdev->gadget, f, uvc->control_ep))
return -EINVAL;
usb_ep_enable(uvc->control_ep);
- uvc->control_ep->driver_data = uvc;
if (uvc->state == UVC_STATE_DISCONNECTED) {
memset(&v4l2_event, 0, sizeof(v4l2_event));
@@ -336,10 +332,8 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
if (uvc->state != UVC_STATE_STREAMING)
return 0;
- if (uvc->video.ep) {
+ if (uvc->video.ep)
usb_ep_disable(uvc->video.ep);
- uvc->video.ep->driver_data = NULL;
- }
memset(&v4l2_event, 0, sizeof(v4l2_event));
v4l2_event.type = UVC_EVENT_STREAMOFF;
@@ -355,18 +349,14 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt)
if (!uvc->video.ep)
return -EINVAL;
- if (uvc->video.ep->driver_data) {
- INFO(cdev, "reset UVC\n");
- usb_ep_disable(uvc->video.ep);
- uvc->video.ep->driver_data = NULL;
- }
+ INFO(cdev, "reset UVC\n");
+ usb_ep_disable(uvc->video.ep);
ret = config_ep_by_speed(f->config->cdev->gadget,
&(uvc->func), uvc->video.ep);
if (ret)
return ret;
usb_ep_enable(uvc->video.ep);
- uvc->video.ep->driver_data = uvc;
memset(&v4l2_event, 0, sizeof(v4l2_event));
v4l2_event.type = UVC_EVENT_STREAMON;
@@ -392,15 +382,8 @@ uvc_function_disable(struct usb_function *f)
uvc->state = UVC_STATE_DISCONNECTED;
- if (uvc->video.ep->driver_data) {
- usb_ep_disable(uvc->video.ep);
- uvc->video.ep->driver_data = NULL;
- }
-
- if (uvc->control_ep->driver_data) {
- usb_ep_disable(uvc->control_ep);
- uvc->control_ep->driver_data = NULL;
- }
+ usb_ep_disable(uvc->video.ep);
+ usb_ep_disable(uvc->control_ep);
}
/* --------------------------------------------------------------------------
@@ -651,7 +634,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
goto error;
}
uvc->control_ep = ep;
- ep->driver_data = uvc;
if (gadget_is_superspeed(c->cdev->gadget))
ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep,
@@ -666,7 +648,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
goto error;
}
uvc->video.ep = ep;
- ep->driver_data = uvc;
uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address;
@@ -733,12 +714,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
uvc->control_req->complete = uvc_function_ep0_complete;
uvc->control_req->context = uvc;
- /* Avoid letting this gadget enumerate until the userspace server is
- * active.
- */
- if ((ret = usb_function_deactivate(f)) < 0)
- goto error;
-
if (v4l2_device_register(&cdev->gadget->dev, &uvc->v4l2_dev)) {
printk(KERN_INFO "v4l2_device_register failed\n");
goto error;
@@ -761,11 +736,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
error:
v4l2_device_unregister(&uvc->v4l2_dev);
- if (uvc->control_ep)
- uvc->control_ep->driver_data = NULL;
- if (uvc->video.ep)
- uvc->video.ep->driver_data = NULL;
-
if (uvc->control_req)
usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
kfree(uvc->control_buf);
@@ -892,8 +862,6 @@ static void uvc_unbind(struct usb_configuration *c, struct usb_function *f)
video_unregister_device(&uvc->vdev);
v4l2_device_unregister(&uvc->v4l2_dev);
- uvc->control_ep->driver_data = NULL;
- uvc->video.ep->driver_data = NULL;
usb_ep_free_request(cdev->gadget->ep0, uvc->control_req);
kfree(uvc->control_buf);
@@ -949,6 +917,7 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
uvc->func.disable = uvc_function_disable;
uvc->func.setup = uvc_function_setup;
uvc->func.free_func = uvc_free;
+ uvc->func.bind_deactivated = true;
return &uvc->func;
}
diff --git a/kernel/drivers/usb/gadget/function/rndis.c b/kernel/drivers/usb/gadget/function/rndis.c
index 95d2324f6..70d3917cc 100644
--- a/kernel/drivers/usb/gadget/function/rndis.c
+++ b/kernel/drivers/usb/gadget/function/rndis.c
@@ -25,6 +25,7 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/errno.h>
+#include <linux/idr.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/slab.h>
@@ -57,17 +58,26 @@ MODULE_PARM_DESC (rndis_debug, "enable debugging");
#define rndis_debug 0
#endif
-#define RNDIS_MAX_CONFIGS 1
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+#define NAME_TEMPLATE "driver/rndis-%03d"
-static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS];
+#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
+
+static DEFINE_IDA(rndis_ida);
/* Driver Version */
static const __le32 rndis_driver_version = cpu_to_le32(1);
/* Function Prototypes */
-static rndis_resp_t *rndis_add_response(int configNr, u32 length);
+static rndis_resp_t *rndis_add_response(struct rndis_params *params,
+ u32 length);
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static const struct file_operations rndis_proc_fops;
+#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
/* supported OIDs */
static const u32 oid_supported_list[] =
@@ -160,7 +170,7 @@ static const u32 oid_supported_list[] =
/* NDIS Functions */
-static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
+static int gen_ndis_query_resp(struct rndis_params *params, u32 OID, u8 *buf,
unsigned buf_len, rndis_resp_t *r)
{
int retval = -ENOTSUPP;
@@ -192,7 +202,7 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
outbuf = (__le32 *)&resp[1];
resp->InformationBufferOffset = cpu_to_le32(16);
- net = rndis_per_dev_params[configNr].dev;
+ net = params->dev;
stats = dev_get_stats(net, &temp);
switch (OID) {
@@ -225,7 +235,7 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_GEN_MEDIA_SUPPORTED:
pr_debug("%s: RNDIS_OID_GEN_MEDIA_SUPPORTED\n", __func__);
- *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium);
+ *outbuf = cpu_to_le32(params->medium);
retval = 0;
break;
@@ -233,16 +243,15 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
case RNDIS_OID_GEN_MEDIA_IN_USE:
pr_debug("%s: RNDIS_OID_GEN_MEDIA_IN_USE\n", __func__);
/* one medium, one transport... (maybe you do it better) */
- *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium);
+ *outbuf = cpu_to_le32(params->medium);
retval = 0;
break;
/* mandatory */
case RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE:
pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__);
- if (rndis_per_dev_params[configNr].dev) {
- *outbuf = cpu_to_le32(
- rndis_per_dev_params[configNr].dev->mtu);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->dev->mtu);
retval = 0;
}
break;
@@ -251,21 +260,18 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
case RNDIS_OID_GEN_LINK_SPEED:
if (rndis_debug > 1)
pr_debug("%s: RNDIS_OID_GEN_LINK_SPEED\n", __func__);
- if (rndis_per_dev_params[configNr].media_state
- == RNDIS_MEDIA_STATE_DISCONNECTED)
+ if (params->media_state == RNDIS_MEDIA_STATE_DISCONNECTED)
*outbuf = cpu_to_le32(0);
else
- *outbuf = cpu_to_le32(
- rndis_per_dev_params[configNr].speed);
+ *outbuf = cpu_to_le32(params->speed);
retval = 0;
break;
/* mandatory */
case RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE:
pr_debug("%s: RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__);
- if (rndis_per_dev_params[configNr].dev) {
- *outbuf = cpu_to_le32(
- rndis_per_dev_params[configNr].dev->mtu);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->dev->mtu);
retval = 0;
}
break;
@@ -273,9 +279,8 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE:
pr_debug("%s: RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__);
- if (rndis_per_dev_params[configNr].dev) {
- *outbuf = cpu_to_le32(
- rndis_per_dev_params[configNr].dev->mtu);
+ if (params->dev) {
+ *outbuf = cpu_to_le32(params->dev->mtu);
retval = 0;
}
break;
@@ -283,20 +288,16 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_GEN_VENDOR_ID:
pr_debug("%s: RNDIS_OID_GEN_VENDOR_ID\n", __func__);
- *outbuf = cpu_to_le32(
- rndis_per_dev_params[configNr].vendorID);
+ *outbuf = cpu_to_le32(params->vendorID);
retval = 0;
break;
/* mandatory */
case RNDIS_OID_GEN_VENDOR_DESCRIPTION:
pr_debug("%s: RNDIS_OID_GEN_VENDOR_DESCRIPTION\n", __func__);
- if (rndis_per_dev_params[configNr].vendorDescr) {
- length = strlen(rndis_per_dev_params[configNr].
- vendorDescr);
- memcpy(outbuf,
- rndis_per_dev_params[configNr].vendorDescr,
- length);
+ if (params->vendorDescr) {
+ length = strlen(params->vendorDescr);
+ memcpy(outbuf, params->vendorDescr, length);
} else {
outbuf[0] = 0;
}
@@ -313,7 +314,7 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_GEN_CURRENT_PACKET_FILTER:
pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
- *outbuf = cpu_to_le32(*rndis_per_dev_params[configNr].filter);
+ *outbuf = cpu_to_le32(*params->filter);
retval = 0;
break;
@@ -328,8 +329,7 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
case RNDIS_OID_GEN_MEDIA_CONNECT_STATUS:
if (rndis_debug > 1)
pr_debug("%s: RNDIS_OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
- *outbuf = cpu_to_le32(rndis_per_dev_params[configNr]
- .media_state);
+ *outbuf = cpu_to_le32(params->media_state);
retval = 0;
break;
@@ -409,11 +409,9 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_802_3_PERMANENT_ADDRESS:
pr_debug("%s: RNDIS_OID_802_3_PERMANENT_ADDRESS\n", __func__);
- if (rndis_per_dev_params[configNr].dev) {
+ if (params->dev) {
length = ETH_ALEN;
- memcpy(outbuf,
- rndis_per_dev_params[configNr].host_mac,
- length);
+ memcpy(outbuf, params->host_mac, length);
retval = 0;
}
break;
@@ -421,11 +419,9 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
/* mandatory */
case RNDIS_OID_802_3_CURRENT_ADDRESS:
pr_debug("%s: RNDIS_OID_802_3_CURRENT_ADDRESS\n", __func__);
- if (rndis_per_dev_params[configNr].dev) {
+ if (params->dev) {
length = ETH_ALEN;
- memcpy(outbuf,
- rndis_per_dev_params [configNr].host_mac,
- length);
+ memcpy(outbuf, params->host_mac, length);
retval = 0;
}
break;
@@ -490,12 +486,11 @@ static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf,
return retval;
}
-static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len,
- rndis_resp_t *r)
+static int gen_ndis_set_resp(struct rndis_params *params, u32 OID,
+ u8 *buf, u32 buf_len, rndis_resp_t *r)
{
rndis_set_cmplt_type *resp;
int i, retval = -ENOTSUPP;
- struct rndis_params *params;
if (!r)
return -ENOMEM;
@@ -514,7 +509,6 @@ static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len,
}
}
- params = &rndis_per_dev_params[configNr];
switch (OID) {
case RNDIS_OID_GEN_CURRENT_PACKET_FILTER:
@@ -563,16 +557,16 @@ static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len,
* Response Functions
*/
-static int rndis_init_response(int configNr, rndis_init_msg_type *buf)
+static int rndis_init_response(struct rndis_params *params,
+ rndis_init_msg_type *buf)
{
rndis_init_cmplt_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
if (!params->dev)
return -ENOTSUPP;
- r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type));
+ r = rndis_add_response(params, sizeof(rndis_init_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_init_cmplt_type *)r->buf;
@@ -599,11 +593,11 @@ static int rndis_init_response(int configNr, rndis_init_msg_type *buf)
return 0;
}
-static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
+static int rndis_query_response(struct rndis_params *params,
+ rndis_query_msg_type *buf)
{
rndis_query_cmplt_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
/* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */
if (!params->dev)
@@ -615,7 +609,7 @@ static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
* rndis_query_cmplt_type followed by data.
* oid_supported_list is the largest data reply
*/
- r = rndis_add_response(configNr,
+ r = rndis_add_response(params,
sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type));
if (!r)
return -ENOMEM;
@@ -624,7 +618,7 @@ static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
resp->MessageType = cpu_to_le32(RNDIS_MSG_QUERY_C);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
- if (gen_ndis_query_resp(configNr, le32_to_cpu(buf->OID),
+ if (gen_ndis_query_resp(params, le32_to_cpu(buf->OID),
le32_to_cpu(buf->InformationBufferOffset)
+ 8 + (u8 *)buf,
le32_to_cpu(buf->InformationBufferLength),
@@ -641,14 +635,14 @@ static int rndis_query_response(int configNr, rndis_query_msg_type *buf)
return 0;
}
-static int rndis_set_response(int configNr, rndis_set_msg_type *buf)
+static int rndis_set_response(struct rndis_params *params,
+ rndis_set_msg_type *buf)
{
u32 BufLength, BufOffset;
rndis_set_cmplt_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
- r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type));
+ r = rndis_add_response(params, sizeof(rndis_set_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_set_cmplt_type *)r->buf;
@@ -671,7 +665,7 @@ static int rndis_set_response(int configNr, rndis_set_msg_type *buf)
resp->MessageType = cpu_to_le32(RNDIS_MSG_SET_C);
resp->MessageLength = cpu_to_le32(16);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
- if (gen_ndis_set_resp(configNr, le32_to_cpu(buf->OID),
+ if (gen_ndis_set_resp(params, le32_to_cpu(buf->OID),
((u8 *)buf) + 8 + BufOffset, BufLength, r))
resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
else
@@ -681,13 +675,13 @@ static int rndis_set_response(int configNr, rndis_set_msg_type *buf)
return 0;
}
-static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf)
+static int rndis_reset_response(struct rndis_params *params,
+ rndis_reset_msg_type *buf)
{
rndis_reset_cmplt_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
- r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type));
+ r = rndis_add_response(params, sizeof(rndis_reset_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_reset_cmplt_type *)r->buf;
@@ -702,16 +696,15 @@ static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf)
return 0;
}
-static int rndis_keepalive_response(int configNr,
+static int rndis_keepalive_response(struct rndis_params *params,
rndis_keepalive_msg_type *buf)
{
rndis_keepalive_cmplt_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
/* host "should" check only in RNDIS_DATA_INITIALIZED state */
- r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type));
+ r = rndis_add_response(params, sizeof(rndis_keepalive_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_keepalive_cmplt_type *)r->buf;
@@ -729,17 +722,15 @@ static int rndis_keepalive_response(int configNr,
/*
* Device to Host Comunication
*/
-static int rndis_indicate_status_msg(int configNr, u32 status)
+static int rndis_indicate_status_msg(struct rndis_params *params, u32 status)
{
rndis_indicate_status_msg_type *resp;
rndis_resp_t *r;
- struct rndis_params *params = rndis_per_dev_params + configNr;
if (params->state == RNDIS_UNINITIALIZED)
return -ENOTSUPP;
- r = rndis_add_response(configNr,
- sizeof(rndis_indicate_status_msg_type));
+ r = rndis_add_response(params, sizeof(rndis_indicate_status_msg_type));
if (!r)
return -ENOMEM;
resp = (rndis_indicate_status_msg_type *)r->buf;
@@ -754,53 +745,48 @@ static int rndis_indicate_status_msg(int configNr, u32 status)
return 0;
}
-int rndis_signal_connect(int configNr)
+int rndis_signal_connect(struct rndis_params *params)
{
- rndis_per_dev_params[configNr].media_state
- = RNDIS_MEDIA_STATE_CONNECTED;
- return rndis_indicate_status_msg(configNr,
- RNDIS_STATUS_MEDIA_CONNECT);
+ params->media_state = RNDIS_MEDIA_STATE_CONNECTED;
+ return rndis_indicate_status_msg(params, RNDIS_STATUS_MEDIA_CONNECT);
}
EXPORT_SYMBOL_GPL(rndis_signal_connect);
-int rndis_signal_disconnect(int configNr)
+int rndis_signal_disconnect(struct rndis_params *params)
{
- rndis_per_dev_params[configNr].media_state
- = RNDIS_MEDIA_STATE_DISCONNECTED;
- return rndis_indicate_status_msg(configNr,
- RNDIS_STATUS_MEDIA_DISCONNECT);
+ params->media_state = RNDIS_MEDIA_STATE_DISCONNECTED;
+ return rndis_indicate_status_msg(params, RNDIS_STATUS_MEDIA_DISCONNECT);
}
EXPORT_SYMBOL_GPL(rndis_signal_disconnect);
-void rndis_uninit(int configNr)
+void rndis_uninit(struct rndis_params *params)
{
u8 *buf;
u32 length;
- if (configNr >= RNDIS_MAX_CONFIGS)
+ if (!params)
return;
- rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED;
+ params->state = RNDIS_UNINITIALIZED;
/* drain the response queue */
- while ((buf = rndis_get_next_response(configNr, &length)))
- rndis_free_response(configNr, buf);
+ while ((buf = rndis_get_next_response(params, &length)))
+ rndis_free_response(params, buf);
}
EXPORT_SYMBOL_GPL(rndis_uninit);
-void rndis_set_host_mac(int configNr, const u8 *addr)
+void rndis_set_host_mac(struct rndis_params *params, const u8 *addr)
{
- rndis_per_dev_params[configNr].host_mac = addr;
+ params->host_mac = addr;
}
EXPORT_SYMBOL_GPL(rndis_set_host_mac);
/*
* Message Parser
*/
-int rndis_msg_parser(u8 configNr, u8 *buf)
+int rndis_msg_parser(struct rndis_params *params, u8 *buf)
{
u32 MsgType, MsgLength;
__le32 *tmp;
- struct rndis_params *params;
if (!buf)
return -ENOMEM;
@@ -809,9 +795,8 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
MsgType = get_unaligned_le32(tmp++);
MsgLength = get_unaligned_le32(tmp++);
- if (configNr >= RNDIS_MAX_CONFIGS)
+ if (!params)
return -ENOTSUPP;
- params = &rndis_per_dev_params[configNr];
/* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
* rx/tx statistics and link status, in addition to KEEPALIVE traffic
@@ -824,8 +809,7 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
pr_debug("%s: RNDIS_MSG_INIT\n",
__func__);
params->state = RNDIS_INITIALIZED;
- return rndis_init_response(configNr,
- (rndis_init_msg_type *)buf);
+ return rndis_init_response(params, (rndis_init_msg_type *)buf);
case RNDIS_MSG_HALT:
pr_debug("%s: RNDIS_MSG_HALT\n",
@@ -838,17 +822,16 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
return 0;
case RNDIS_MSG_QUERY:
- return rndis_query_response(configNr,
+ return rndis_query_response(params,
(rndis_query_msg_type *)buf);
case RNDIS_MSG_SET:
- return rndis_set_response(configNr,
- (rndis_set_msg_type *)buf);
+ return rndis_set_response(params, (rndis_set_msg_type *)buf);
case RNDIS_MSG_RESET:
pr_debug("%s: RNDIS_MSG_RESET\n",
__func__);
- return rndis_reset_response(configNr,
+ return rndis_reset_response(params,
(rndis_reset_msg_type *)buf);
case RNDIS_MSG_KEEPALIVE:
@@ -856,7 +839,7 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
if (rndis_debug > 1)
pr_debug("%s: RNDIS_MSG_KEEPALIVE\n",
__func__);
- return rndis_keepalive_response(configNr,
+ return rndis_keepalive_response(params,
(rndis_keepalive_msg_type *)
buf);
@@ -876,71 +859,131 @@ int rndis_msg_parser(u8 configNr, u8 *buf)
}
EXPORT_SYMBOL_GPL(rndis_msg_parser);
-int rndis_register(void (*resp_avail)(void *v), void *v)
+static inline int rndis_get_nr(void)
{
- u8 i;
+ return ida_simple_get(&rndis_ida, 0, 0, GFP_KERNEL);
+}
+
+static inline void rndis_put_nr(int nr)
+{
+ ida_simple_remove(&rndis_ida, nr);
+}
+
+struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v)
+{
+ struct rndis_params *params;
+ int i;
if (!resp_avail)
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
+
+ i = rndis_get_nr();
+ if (i < 0) {
+ pr_debug("failed\n");
+
+ return ERR_PTR(-ENODEV);
+ }
+
+ params = kzalloc(sizeof(*params), GFP_KERNEL);
+ if (!params) {
+ rndis_put_nr(i);
- for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
- if (!rndis_per_dev_params[i].used) {
- rndis_per_dev_params[i].used = 1;
- rndis_per_dev_params[i].resp_avail = resp_avail;
- rndis_per_dev_params[i].v = v;
- pr_debug("%s: configNr = %d\n", __func__, i);
- return i;
+ return ERR_PTR(-ENOMEM);
+ }
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+ {
+ struct proc_dir_entry *proc_entry;
+ char name[20];
+
+ sprintf(name, NAME_TEMPLATE, i);
+ proc_entry = proc_create_data(name, 0660, NULL,
+ &rndis_proc_fops, params);
+ if (!proc_entry) {
+ kfree(params);
+ rndis_put_nr(i);
+
+ return ERR_PTR(-EIO);
}
}
- pr_debug("failed\n");
+#endif
+
+ params->confignr = i;
+ params->used = 1;
+ params->state = RNDIS_UNINITIALIZED;
+ params->media_state = RNDIS_MEDIA_STATE_DISCONNECTED;
+ params->resp_avail = resp_avail;
+ params->v = v;
+ INIT_LIST_HEAD(&(params->resp_queue));
+ pr_debug("%s: configNr = %d\n", __func__, i);
- return -ENODEV;
+ return params;
}
EXPORT_SYMBOL_GPL(rndis_register);
-void rndis_deregister(int configNr)
+void rndis_deregister(struct rndis_params *params)
{
+ int i;
+
pr_debug("%s:\n", __func__);
- if (configNr >= RNDIS_MAX_CONFIGS) return;
- rndis_per_dev_params[configNr].used = 0;
+ if (!params)
+ return;
+
+ i = params->confignr;
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+ {
+ char name[20];
+
+ sprintf(name, NAME_TEMPLATE, i);
+ remove_proc_entry(name, NULL);
+ }
+#endif
+
+ kfree(params);
+ rndis_put_nr(i);
}
EXPORT_SYMBOL_GPL(rndis_deregister);
-
-int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter)
+int rndis_set_param_dev(struct rndis_params *params, struct net_device *dev,
+ u16 *cdc_filter)
{
pr_debug("%s:\n", __func__);
if (!dev)
return -EINVAL;
- if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+ if (!params)
+ return -1;
- rndis_per_dev_params[configNr].dev = dev;
- rndis_per_dev_params[configNr].filter = cdc_filter;
+ params->dev = dev;
+ params->filter = cdc_filter;
return 0;
}
EXPORT_SYMBOL_GPL(rndis_set_param_dev);
-int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr)
+int rndis_set_param_vendor(struct rndis_params *params, u32 vendorID,
+ const char *vendorDescr)
{
pr_debug("%s:\n", __func__);
if (!vendorDescr) return -1;
- if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+ if (!params)
+ return -1;
- rndis_per_dev_params[configNr].vendorID = vendorID;
- rndis_per_dev_params[configNr].vendorDescr = vendorDescr;
+ params->vendorID = vendorID;
+ params->vendorDescr = vendorDescr;
return 0;
}
EXPORT_SYMBOL_GPL(rndis_set_param_vendor);
-int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed)
+int rndis_set_param_medium(struct rndis_params *params, u32 medium, u32 speed)
{
pr_debug("%s: %u %u\n", __func__, medium, speed);
- if (configNr >= RNDIS_MAX_CONFIGS) return -1;
+ if (!params)
+ return -1;
- rndis_per_dev_params[configNr].medium = medium;
- rndis_per_dev_params[configNr].speed = speed;
+ params->medium = medium;
+ params->speed = speed;
return 0;
}
@@ -961,13 +1004,12 @@ void rndis_add_hdr(struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(rndis_add_hdr);
-void rndis_free_response(int configNr, u8 *buf)
+void rndis_free_response(struct rndis_params *params, u8 *buf)
{
rndis_resp_t *r;
struct list_head *act, *tmp;
- list_for_each_safe(act, tmp,
- &(rndis_per_dev_params[configNr].resp_queue))
+ list_for_each_safe(act, tmp, &(params->resp_queue))
{
r = list_entry(act, rndis_resp_t, list);
if (r && r->buf == buf) {
@@ -978,15 +1020,14 @@ void rndis_free_response(int configNr, u8 *buf)
}
EXPORT_SYMBOL_GPL(rndis_free_response);
-u8 *rndis_get_next_response(int configNr, u32 *length)
+u8 *rndis_get_next_response(struct rndis_params *params, u32 *length)
{
rndis_resp_t *r;
struct list_head *act, *tmp;
if (!length) return NULL;
- list_for_each_safe(act, tmp,
- &(rndis_per_dev_params[configNr].resp_queue))
+ list_for_each_safe(act, tmp, &(params->resp_queue))
{
r = list_entry(act, rndis_resp_t, list);
if (!r->send) {
@@ -1000,7 +1041,7 @@ u8 *rndis_get_next_response(int configNr, u32 *length)
}
EXPORT_SYMBOL_GPL(rndis_get_next_response);
-static rndis_resp_t *rndis_add_response(int configNr, u32 length)
+static rndis_resp_t *rndis_add_response(struct rndis_params *params, u32 length)
{
rndis_resp_t *r;
@@ -1012,8 +1053,7 @@ static rndis_resp_t *rndis_add_response(int configNr, u32 length)
r->length = length;
r->send = 0;
- list_add_tail(&r->list,
- &(rndis_per_dev_params[configNr].resp_queue));
+ list_add_tail(&r->list, &(params->resp_queue));
return r;
}
@@ -1103,11 +1143,11 @@ static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
break;
case 'C':
case 'c':
- rndis_signal_connect(p->confignr);
+ rndis_signal_connect(p);
break;
case 'D':
case 'd':
- rndis_signal_disconnect(p->confignr);
+ rndis_signal_disconnect(p);
break;
default:
if (fl_speed) p->speed = speed;
@@ -1137,54 +1177,4 @@ static const struct file_operations rndis_proc_fops = {
#define NAME_TEMPLATE "driver/rndis-%03d"
-static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
-
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
-
-
-int rndis_init(void)
-{
- u8 i;
-
- for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
- char name [20];
-
- sprintf(name, NAME_TEMPLATE, i);
- rndis_connect_state[i] = proc_create_data(name, 0660, NULL,
- &rndis_proc_fops,
- (void *)(rndis_per_dev_params + i));
- if (!rndis_connect_state[i]) {
- pr_debug("%s: remove entries", __func__);
- while (i) {
- sprintf(name, NAME_TEMPLATE, --i);
- remove_proc_entry(name, NULL);
- }
- pr_debug("\n");
- return -EIO;
- }
-#endif
- rndis_per_dev_params[i].confignr = i;
- rndis_per_dev_params[i].used = 0;
- rndis_per_dev_params[i].state = RNDIS_UNINITIALIZED;
- rndis_per_dev_params[i].media_state
- = RNDIS_MEDIA_STATE_DISCONNECTED;
- INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue));
- }
-
- return 0;
-}
-
-void rndis_exit(void)
-{
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
- u8 i;
- char name[20];
-
- for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
- sprintf(name, NAME_TEMPLATE, i);
- remove_proc_entry(name, NULL);
- }
-#endif
-}
-
diff --git a/kernel/drivers/usb/gadget/function/rndis.h b/kernel/drivers/usb/gadget/function/rndis.h
index 0f4abb4c3..ef92eb66d 100644
--- a/kernel/drivers/usb/gadget/function/rndis.h
+++ b/kernel/drivers/usb/gadget/function/rndis.h
@@ -177,7 +177,7 @@ typedef struct rndis_resp_t
typedef struct rndis_params
{
- u8 confignr;
+ int confignr;
u8 used;
u16 saved_filter;
enum rndis_state state;
@@ -197,24 +197,25 @@ typedef struct rndis_params
} rndis_params;
/* RNDIS Message parser and other useless functions */
-int rndis_msg_parser (u8 configNr, u8 *buf);
-int rndis_register(void (*resp_avail)(void *v), void *v);
-void rndis_deregister (int configNr);
-int rndis_set_param_dev (u8 configNr, struct net_device *dev,
+int rndis_msg_parser(struct rndis_params *params, u8 *buf);
+struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v);
+void rndis_deregister(struct rndis_params *params);
+int rndis_set_param_dev(struct rndis_params *params, struct net_device *dev,
u16 *cdc_filter);
-int rndis_set_param_vendor (u8 configNr, u32 vendorID,
+int rndis_set_param_vendor(struct rndis_params *params, u32 vendorID,
const char *vendorDescr);
-int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed);
-void rndis_add_hdr (struct sk_buff *skb);
+int rndis_set_param_medium(struct rndis_params *params, u32 medium,
+ u32 speed);
+void rndis_add_hdr(struct sk_buff *skb);
int rndis_rm_hdr(struct gether *port, struct sk_buff *skb,
struct sk_buff_head *list);
-u8 *rndis_get_next_response (int configNr, u32 *length);
-void rndis_free_response (int configNr, u8 *buf);
-
-void rndis_uninit (int configNr);
-int rndis_signal_connect (int configNr);
-int rndis_signal_disconnect (int configNr);
-int rndis_state (int configNr);
-extern void rndis_set_host_mac (int configNr, const u8 *addr);
+u8 *rndis_get_next_response(struct rndis_params *params, u32 *length);
+void rndis_free_response(struct rndis_params *params, u8 *buf);
+
+void rndis_uninit(struct rndis_params *params);
+int rndis_signal_connect(struct rndis_params *params);
+int rndis_signal_disconnect(struct rndis_params *params);
+int rndis_state(struct rndis_params *params);
+extern void rndis_set_host_mac(struct rndis_params *params, const u8 *addr);
#endif /* _LINUX_RNDIS_H */
diff --git a/kernel/drivers/usb/gadget/function/storage_common.c b/kernel/drivers/usb/gadget/function/storage_common.c
index 648f9e489..d62683017 100644
--- a/kernel/drivers/usb/gadget/function/storage_common.c
+++ b/kernel/drivers/usb/gadget/function/storage_common.c
@@ -341,7 +341,7 @@ ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
down_read(filesem);
if (fsg_lun_is_open(curlun)) { /* Get the complete pathname */
- p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
+ p = file_path(curlun->filp, buf, PAGE_SIZE - 1);
if (IS_ERR(p))
rc = PTR_ERR(p);
else {
diff --git a/kernel/drivers/usb/gadget/function/storage_common.h b/kernel/drivers/usb/gadget/function/storage_common.h
index 70c891469..c3544e61d 100644
--- a/kernel/drivers/usb/gadget/function/storage_common.h
+++ b/kernel/drivers/usb/gadget/function/storage_common.h
@@ -123,7 +123,7 @@ static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
#define FSG_BUFLEN ((u32)16384)
/* Maximal number of LUNs supported in mass storage function */
-#define FSG_MAX_LUNS 8
+#define FSG_MAX_LUNS 16
enum fsg_buffer_state {
BUF_STATE_EMPTY = 0,
diff --git a/kernel/drivers/usb/gadget/function/u_ether.c b/kernel/drivers/usb/gadget/function/u_ether.c
index f1fd777ef..6554322af 100644
--- a/kernel/drivers/usb/gadget/function/u_ether.c
+++ b/kernel/drivers/usb/gadget/function/u_ether.c
@@ -48,6 +48,11 @@
#define UETH__VERSION "29-May-2008"
+/* Experiments show that both Linux and Windows hosts allow up to 16k
+ * frame sizes. Set the max size to 15k+52 to prevent allocating 32k
+ * blocks and still have efficient handling. */
+#define GETHER_MAX_ETH_FRAME_LEN 15412
+
struct eth_dev {
/* lock is held while accessing port_usb
*/
@@ -146,7 +151,7 @@ static int ueth_change_mtu(struct net_device *net, int new_mtu)
spin_lock_irqsave(&dev->lock, flags);
if (dev->port_usb)
status = -EBUSY;
- else if (new_mtu <= ETH_HLEN || new_mtu > ETH_FRAME_LEN)
+ else if (new_mtu <= ETH_HLEN || new_mtu > GETHER_MAX_ETH_FRAME_LEN)
status = -ERANGE;
else
net->mtu = new_mtu;
@@ -294,7 +299,7 @@ static void rx_complete(struct usb_ep *ep, struct usb_request *req)
while (skb2) {
if (status < 0
|| ETH_HLEN > skb2->len
- || skb2->len > VLAN_ETH_FRAME_LEN) {
+ || skb2->len > GETHER_MAX_ETH_FRAME_LEN) {
dev->net->stats.rx_errors++;
dev->net->stats.rx_length_errors++;
DBG(dev, "rx length %d\n", skb2->len);
@@ -1144,7 +1149,6 @@ void gether_disconnect(struct gether *link)
spin_lock(&dev->req_lock);
}
spin_unlock(&dev->req_lock);
- link->in_ep->driver_data = NULL;
link->in_ep->desc = NULL;
usb_ep_disable(link->out_ep);
@@ -1159,7 +1163,6 @@ void gether_disconnect(struct gether *link)
spin_lock(&dev->req_lock);
}
spin_unlock(&dev->req_lock);
- link->out_ep->driver_data = NULL;
link->out_ep->desc = NULL;
/* finish forgetting about this USB link episode */
diff --git a/kernel/drivers/usb/gadget/function/u_ether.h b/kernel/drivers/usb/gadget/function/u_ether.h
index 334b38947..c77145bd6 100644
--- a/kernel/drivers/usb/gadget/function/u_ether.h
+++ b/kernel/drivers/usb/gadget/function/u_ether.h
@@ -20,8 +20,6 @@
#include <linux/usb/cdc.h>
#include <linux/netdevice.h>
-#include "gadget_chips.h"
-
#define QMULT_DEFAULT 5
/*
@@ -259,7 +257,7 @@ void gether_disconnect(struct gether *);
/* Some controllers can't support CDC Ethernet (ECM) ... */
static inline bool can_support_ecm(struct usb_gadget *gadget)
{
- if (!gadget_supports_altsettings(gadget))
+ if (!gadget_is_altset_supported(gadget))
return false;
/* Everything else is *presumably* fine ... but this is a bit
diff --git a/kernel/drivers/usb/gadget/function/u_ether_configfs.h b/kernel/drivers/usb/gadget/function/u_ether_configfs.h
index bcbd30146..4f47289fc 100644
--- a/kernel/drivers/usb/gadget/function/u_ether_configfs.h
+++ b/kernel/drivers/usb/gadget/function/u_ether_configfs.h
@@ -17,9 +17,6 @@
#define __U_ETHER_CONFIGFS_H
#define USB_ETHERNET_CONFIGFS_ITEM(_f_) \
- CONFIGFS_ATTR_STRUCT(f_##_f_##_opts); \
- CONFIGFS_ATTR_OPS(f_##_f_##_opts); \
- \
static void _f_##_attr_release(struct config_item *item) \
{ \
struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
@@ -29,14 +26,13 @@
\
static struct configfs_item_operations _f_##_item_ops = { \
.release = _f_##_attr_release, \
- .show_attribute = f_##_f_##_opts_attr_show, \
- .store_attribute = f_##_f_##_opts_attr_store, \
}
#define USB_ETHERNET_CONFIGFS_ITEM_ATTR_DEV_ADDR(_f_) \
- static ssize_t _f_##_opts_dev_addr_show(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_dev_addr_show(struct config_item *item, \
char *page) \
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -46,9 +42,10 @@
return result; \
} \
\
- static ssize_t _f_##_opts_dev_addr_store(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_dev_addr_store(struct config_item *item, \
const char *page, size_t len)\
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
int ret; \
\
mutex_lock(&opts->lock); \
@@ -64,15 +61,13 @@
return ret; \
} \
\
- static struct f_##_f_##_opts_attribute f_##_f_##_opts_dev_addr = \
- __CONFIGFS_ATTR(dev_addr, S_IRUGO | S_IWUSR, \
- _f_##_opts_dev_addr_show, \
- _f_##_opts_dev_addr_store)
+ CONFIGFS_ATTR(_f_##_opts_, dev_addr)
#define USB_ETHERNET_CONFIGFS_ITEM_ATTR_HOST_ADDR(_f_) \
- static ssize_t _f_##_opts_host_addr_show(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_host_addr_show(struct config_item *item, \
char *page) \
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -82,9 +77,10 @@
return result; \
} \
\
- static ssize_t _f_##_opts_host_addr_store(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_host_addr_store(struct config_item *item, \
const char *page, size_t len)\
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
int ret; \
\
mutex_lock(&opts->lock); \
@@ -100,15 +96,13 @@
return ret; \
} \
\
- static struct f_##_f_##_opts_attribute f_##_f_##_opts_host_addr = \
- __CONFIGFS_ATTR(host_addr, S_IRUGO | S_IWUSR, \
- _f_##_opts_host_addr_show, \
- _f_##_opts_host_addr_store)
+ CONFIGFS_ATTR(_f_##_opts_, host_addr)
#define USB_ETHERNET_CONFIGFS_ITEM_ATTR_QMULT(_f_) \
- static ssize_t _f_##_opts_qmult_show(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_qmult_show(struct config_item *item, \
char *page) \
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
unsigned qmult; \
\
mutex_lock(&opts->lock); \
@@ -117,9 +111,10 @@
return sprintf(page, "%d", qmult); \
} \
\
- static ssize_t _f_##_opts_qmult_store(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_qmult_store(struct config_item *item, \
const char *page, size_t len)\
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
u8 val; \
int ret; \
\
@@ -140,15 +135,13 @@ out: \
return ret; \
} \
\
- static struct f_##_f_##_opts_attribute f_##_f_##_opts_qmult = \
- __CONFIGFS_ATTR(qmult, S_IRUGO | S_IWUSR, \
- _f_##_opts_qmult_show, \
- _f_##_opts_qmult_store)
+ CONFIGFS_ATTR(_f_##_opts_, qmult)
#define USB_ETHERNET_CONFIGFS_ITEM_ATTR_IFNAME(_f_) \
- static ssize_t _f_##_opts_ifname_show(struct f_##_f_##_opts *opts, \
+ static ssize_t _f_##_opts_ifname_show(struct config_item *item, \
char *page) \
{ \
+ struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item); \
int ret; \
\
mutex_lock(&opts->lock); \
@@ -158,7 +151,6 @@ out: \
return ret; \
} \
\
- static struct f_##_f_##_opts_attribute f_##_f_##_opts_ifname = \
- __CONFIGFS_ATTR_RO(ifname, _f_##_opts_ifname_show)
+ CONFIGFS_ATTR_RO(_f_##_opts_, ifname)
#endif /* __U_ETHER_CONFIGFS_H */
diff --git a/kernel/drivers/usb/gadget/function/u_rndis.h b/kernel/drivers/usb/gadget/function/u_rndis.h
index e902aa42a..4eafd5050 100644
--- a/kernel/drivers/usb/gadget/function/u_rndis.h
+++ b/kernel/drivers/usb/gadget/function/u_rndis.h
@@ -39,8 +39,6 @@ struct f_rndis_opts {
int refcnt;
};
-int rndis_init(void);
-void rndis_exit(void);
void rndis_borrow_net(struct usb_function_instance *f, struct net_device *net);
#endif /* U_RNDIS_H */
diff --git a/kernel/drivers/usb/gadget/function/u_serial.c b/kernel/drivers/usb/gadget/function/u_serial.c
index 7ee057930..f7771d86a 100644
--- a/kernel/drivers/usb/gadget/function/u_serial.c
+++ b/kernel/drivers/usb/gadget/function/u_serial.c
@@ -114,6 +114,7 @@ struct gs_port {
struct gs_buf port_write_buf;
wait_queue_head_t drain_wait; /* wait while writes drain */
bool write_busy;
+ wait_queue_head_t close_wait;
/* REVISIT this state ... */
struct usb_cdc_line_coding port_line_coding; /* 8-N-1 etc */
@@ -876,7 +877,6 @@ static void gs_close(struct tty_struct *tty, struct file *file)
else
gs_buf_clear(&port->port_write_buf);
- tty->driver_data = NULL;
port->port.tty = NULL;
port->openclose = false;
@@ -884,7 +884,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
port->port_num, tty, file);
- wake_up(&port->port.close_wait);
+ wake_up(&port->close_wait);
exit:
spin_unlock_irq(&port->port_lock);
}
@@ -1044,6 +1044,7 @@ gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
tty_port_init(&port->port);
spin_lock_init(&port->port_lock);
init_waitqueue_head(&port->drain_wait);
+ init_waitqueue_head(&port->close_wait);
tasklet_init(&port->push, gs_rx_push, (unsigned long) port);
@@ -1074,7 +1075,7 @@ static void gserial_free_port(struct gs_port *port)
{
tasklet_kill(&port->push);
/* wait for old opens to finish */
- wait_event(port->port.close_wait, gs_closed(port));
+ wait_event(port->close_wait, gs_closed(port));
WARN_ON(port->port_usb != NULL);
tty_port_destroy(&port->port);
kfree(port);
@@ -1224,7 +1225,6 @@ int gserial_connect(struct gserial *gser, u8 port_num)
fail_out:
usb_ep_disable(gser->in);
- gser->in->driver_data = NULL;
return status;
}
EXPORT_SYMBOL_GPL(gserial_connect);
@@ -1264,10 +1264,7 @@ void gserial_disconnect(struct gserial *gser)
/* disable endpoints, aborting down any active I/O */
usb_ep_disable(gser->out);
- gser->out->driver_data = NULL;
-
usb_ep_disable(gser->in);
- gser->in->driver_data = NULL;
/* finally, free any unused/unusable I/O buffers */
spin_lock_irqsave(&port->port_lock, flags);
diff --git a/kernel/drivers/usb/gadget/function/u_uac1.h b/kernel/drivers/usb/gadget/function/u_uac1.h
index fe386df6d..5c2ac8e84 100644
--- a/kernel/drivers/usb/gadget/function/u_uac1.h
+++ b/kernel/drivers/usb/gadget/function/u_uac1.h
@@ -21,8 +21,6 @@
#include <sound/pcm.h>
#include <sound/pcm_params.h>
-#include "gadget_chips.h"
-
#define FILE_PCM_PLAYBACK "/dev/snd/pcmC0D0p"
#define FILE_PCM_CAPTURE "/dev/snd/pcmC0D0c"
#define FILE_CONTROL "/dev/snd/controlC0"
diff --git a/kernel/drivers/usb/gadget/function/uvc.h b/kernel/drivers/usb/gadget/function/uvc.h
index ebe409b9e..7d3bb6272 100644
--- a/kernel/drivers/usb/gadget/function/uvc.h
+++ b/kernel/drivers/usb/gadget/function/uvc.h
@@ -56,7 +56,6 @@ struct uvc_event
#include <linux/usb/composite.h>
#include <linux/usb/gadget.h>
#include <linux/videodev2.h>
-#include <linux/version.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-device.h>
diff --git a/kernel/drivers/usb/gadget/function/uvc_configfs.c b/kernel/drivers/usb/gadget/function/uvc_configfs.c
index 3c0467bcb..ad8c9b055 100644
--- a/kernel/drivers/usb/gadget/function/uvc_configfs.c
+++ b/kernel/drivers/usb/gadget/function/uvc_configfs.c
@@ -17,19 +17,21 @@
#define UVCG_STREAMING_CONTROL_SIZE 1
-#define CONFIGFS_ATTR_OPS_RO(_item) \
-static ssize_t _item##_attr_show(struct config_item *item, \
- struct configfs_attribute *attr, \
- char *page) \
-{ \
- struct _item *_item = to_##_item(item); \
- struct _item##_attribute *_item##_attr = \
- container_of(attr, struct _item##_attribute, attr); \
- ssize_t ret = 0; \
- \
- if (_item##_attr->show) \
- ret = _item##_attr->show(_item, page); \
- return ret; \
+#define UVC_ATTR(prefix, cname, aname) \
+static struct configfs_attribute prefix##attr_##cname = { \
+ .ca_name = __stringify(aname), \
+ .ca_mode = S_IRUGO | S_IWUGO, \
+ .ca_owner = THIS_MODULE, \
+ .show = prefix##cname##_show, \
+ .store = prefix##cname##_store, \
+}
+
+#define UVC_ATTR_RO(prefix, cname, aname) \
+static struct configfs_attribute prefix##attr_##cname = { \
+ .ca_name = __stringify(aname), \
+ .ca_mode = S_IRUGO, \
+ .ca_owner = THIS_MODULE, \
+ .show = prefix##cname##_show, \
}
static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item);
@@ -48,18 +50,11 @@ static struct uvcg_control_header *to_uvcg_control_header(struct config_item *it
return container_of(item, struct uvcg_control_header, item);
}
-CONFIGFS_ATTR_STRUCT(uvcg_control_header);
-CONFIGFS_ATTR_OPS(uvcg_control_header);
-
-static struct configfs_item_operations uvcg_control_header_item_ops = {
- .show_attribute = uvcg_control_header_attr_show,
- .store_attribute = uvcg_control_header_attr_store,
-};
-
#define UVCG_CTRL_HDR_ATTR(cname, aname, conv, str2u, uxx, vnoc, limit) \
static ssize_t uvcg_control_header_##cname##_show( \
- struct uvcg_control_header *ch, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_control_header *ch = to_uvcg_control_header(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &ch->item.ci_group->cg_subsys->su_mutex;\
@@ -79,9 +74,10 @@ static ssize_t uvcg_control_header_##cname##_show( \
} \
\
static ssize_t \
-uvcg_control_header_##cname##_store(struct uvcg_control_header *ch, \
+uvcg_control_header_##cname##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct uvcg_control_header *ch = to_uvcg_control_header(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &ch->item.ci_group->cg_subsys->su_mutex;\
@@ -115,11 +111,7 @@ end: \
return ret; \
} \
\
-static struct uvcg_control_header_attribute \
- uvcg_control_header_##cname = \
- __CONFIGFS_ATTR(aname, S_IRUGO | S_IWUSR, \
- uvcg_control_header_##cname##_show, \
- uvcg_control_header_##cname##_store)
+UVC_ATTR(uvcg_control_header_, cname, aname)
UVCG_CTRL_HDR_ATTR(bcd_uvc, bcdUVC, le16_to_cpu, kstrtou16, u16, cpu_to_le16,
0xffff);
@@ -130,13 +122,12 @@ UVCG_CTRL_HDR_ATTR(dw_clock_frequency, dwClockFrequency, le32_to_cpu, kstrtou32,
#undef UVCG_CTRL_HDR_ATTR
static struct configfs_attribute *uvcg_control_header_attrs[] = {
- &uvcg_control_header_bcd_uvc.attr,
- &uvcg_control_header_dw_clock_frequency.attr,
+ &uvcg_control_header_attr_bcd_uvc,
+ &uvcg_control_header_attr_dw_clock_frequency,
NULL,
};
static struct config_item_type uvcg_control_header_type = {
- .ct_item_ops = &uvcg_control_header_item_ops,
.ct_attrs = uvcg_control_header_attrs,
.ct_owner = THIS_MODULE,
};
@@ -196,17 +187,11 @@ static inline struct uvcg_default_processing
struct uvcg_default_processing, group);
}
-CONFIGFS_ATTR_STRUCT(uvcg_default_processing);
-CONFIGFS_ATTR_OPS_RO(uvcg_default_processing);
-
-static struct configfs_item_operations uvcg_default_processing_item_ops = {
- .show_attribute = uvcg_default_processing_attr_show,
-};
-
#define UVCG_DEFAULT_PROCESSING_ATTR(cname, aname, conv) \
static ssize_t uvcg_default_processing_##cname##_show( \
- struct uvcg_default_processing *dp, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_default_processing *dp = to_uvcg_default_processing(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &dp->group.cg_subsys->su_mutex; \
@@ -227,9 +212,7 @@ static ssize_t uvcg_default_processing_##cname##_show( \
return result; \
} \
\
-static struct uvcg_default_processing_attribute \
- uvcg_default_processing_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_default_processing_##cname##_show)
+UVC_ATTR_RO(uvcg_default_processing_, cname, aname)
#define identity_conv(x) (x)
@@ -243,8 +226,9 @@ UVCG_DEFAULT_PROCESSING_ATTR(i_processing, iProcessing, identity_conv);
#undef UVCG_DEFAULT_PROCESSING_ATTR
static ssize_t uvcg_default_processing_bm_controls_show(
- struct uvcg_default_processing *dp, char *page)
+ struct config_item *item, char *page)
{
+ struct uvcg_default_processing *dp = to_uvcg_default_processing(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct mutex *su_mutex = &dp->group.cg_subsys->su_mutex;
@@ -270,22 +254,18 @@ static ssize_t uvcg_default_processing_bm_controls_show(
return result;
}
-static struct uvcg_default_processing_attribute
- uvcg_default_processing_bm_controls =
- __CONFIGFS_ATTR_RO(bmControls,
- uvcg_default_processing_bm_controls_show);
+UVC_ATTR_RO(uvcg_default_processing_, bm_controls, bmControls);
static struct configfs_attribute *uvcg_default_processing_attrs[] = {
- &uvcg_default_processing_b_unit_id.attr,
- &uvcg_default_processing_b_source_id.attr,
- &uvcg_default_processing_w_max_multiplier.attr,
- &uvcg_default_processing_bm_controls.attr,
- &uvcg_default_processing_i_processing.attr,
+ &uvcg_default_processing_attr_b_unit_id,
+ &uvcg_default_processing_attr_b_source_id,
+ &uvcg_default_processing_attr_w_max_multiplier,
+ &uvcg_default_processing_attr_bm_controls,
+ &uvcg_default_processing_attr_i_processing,
NULL,
};
static struct config_item_type uvcg_default_processing_type = {
- .ct_item_ops = &uvcg_default_processing_item_ops,
.ct_attrs = uvcg_default_processing_attrs,
.ct_owner = THIS_MODULE,
};
@@ -318,17 +298,11 @@ static inline struct uvcg_default_camera
struct uvcg_default_camera, group);
}
-CONFIGFS_ATTR_STRUCT(uvcg_default_camera);
-CONFIGFS_ATTR_OPS_RO(uvcg_default_camera);
-
-static struct configfs_item_operations uvcg_default_camera_item_ops = {
- .show_attribute = uvcg_default_camera_attr_show,
-};
-
#define UVCG_DEFAULT_CAMERA_ATTR(cname, aname, conv) \
static ssize_t uvcg_default_camera_##cname##_show( \
- struct uvcg_default_camera *dc, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_default_camera *dc = to_uvcg_default_camera(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex; \
@@ -351,9 +325,7 @@ static ssize_t uvcg_default_camera_##cname##_show( \
return result; \
} \
\
-static struct uvcg_default_camera_attribute \
- uvcg_default_camera_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_default_camera_##cname##_show)
+UVC_ATTR_RO(uvcg_default_camera_, cname, aname)
#define identity_conv(x) (x)
@@ -373,8 +345,9 @@ UVCG_DEFAULT_CAMERA_ATTR(w_ocular_focal_length, wOcularFocalLength,
#undef UVCG_DEFAULT_CAMERA_ATTR
static ssize_t uvcg_default_camera_bm_controls_show(
- struct uvcg_default_camera *dc, char *page)
+ struct config_item *item, char *page)
{
+ struct uvcg_default_camera *dc = to_uvcg_default_camera(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex;
@@ -400,24 +373,21 @@ static ssize_t uvcg_default_camera_bm_controls_show(
return result;
}
-static struct uvcg_default_camera_attribute
- uvcg_default_camera_bm_controls =
- __CONFIGFS_ATTR_RO(bmControls, uvcg_default_camera_bm_controls_show);
+UVC_ATTR_RO(uvcg_default_camera_, bm_controls, bmControls);
static struct configfs_attribute *uvcg_default_camera_attrs[] = {
- &uvcg_default_camera_b_terminal_id.attr,
- &uvcg_default_camera_w_terminal_type.attr,
- &uvcg_default_camera_b_assoc_terminal.attr,
- &uvcg_default_camera_i_terminal.attr,
- &uvcg_default_camera_w_objective_focal_length_min.attr,
- &uvcg_default_camera_w_objective_focal_length_max.attr,
- &uvcg_default_camera_w_ocular_focal_length.attr,
- &uvcg_default_camera_bm_controls.attr,
+ &uvcg_default_camera_attr_b_terminal_id,
+ &uvcg_default_camera_attr_w_terminal_type,
+ &uvcg_default_camera_attr_b_assoc_terminal,
+ &uvcg_default_camera_attr_i_terminal,
+ &uvcg_default_camera_attr_w_objective_focal_length_min,
+ &uvcg_default_camera_attr_w_objective_focal_length_max,
+ &uvcg_default_camera_attr_w_ocular_focal_length,
+ &uvcg_default_camera_attr_bm_controls,
NULL,
};
static struct config_item_type uvcg_default_camera_type = {
- .ct_item_ops = &uvcg_default_camera_item_ops,
.ct_attrs = uvcg_default_camera_attrs,
.ct_owner = THIS_MODULE,
};
@@ -450,17 +420,11 @@ static inline struct uvcg_default_output
struct uvcg_default_output, group);
}
-CONFIGFS_ATTR_STRUCT(uvcg_default_output);
-CONFIGFS_ATTR_OPS_RO(uvcg_default_output);
-
-static struct configfs_item_operations uvcg_default_output_item_ops = {
- .show_attribute = uvcg_default_output_attr_show,
-};
-
#define UVCG_DEFAULT_OUTPUT_ATTR(cname, aname, conv) \
static ssize_t uvcg_default_output_##cname##_show( \
- struct uvcg_default_output *dout, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_default_output *dout = to_uvcg_default_output(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &dout->group.cg_subsys->su_mutex; \
@@ -483,9 +447,7 @@ static ssize_t uvcg_default_output_##cname##_show( \
return result; \
} \
\
-static struct uvcg_default_output_attribute \
- uvcg_default_output_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_default_output_##cname##_show)
+UVC_ATTR_RO(uvcg_default_output_, cname, aname)
#define identity_conv(x) (x)
@@ -500,16 +462,15 @@ UVCG_DEFAULT_OUTPUT_ATTR(i_terminal, iTerminal, identity_conv);
#undef UVCG_DEFAULT_OUTPUT_ATTR
static struct configfs_attribute *uvcg_default_output_attrs[] = {
- &uvcg_default_output_b_terminal_id.attr,
- &uvcg_default_output_w_terminal_type.attr,
- &uvcg_default_output_b_assoc_terminal.attr,
- &uvcg_default_output_b_source_id.attr,
- &uvcg_default_output_i_terminal.attr,
+ &uvcg_default_output_attr_b_terminal_id,
+ &uvcg_default_output_attr_w_terminal_type,
+ &uvcg_default_output_attr_b_assoc_terminal,
+ &uvcg_default_output_attr_b_source_id,
+ &uvcg_default_output_attr_i_terminal,
NULL,
};
static struct config_item_type uvcg_default_output_type = {
- .ct_item_ops = &uvcg_default_output_item_ops,
.ct_attrs = uvcg_default_output_attrs,
.ct_owner = THIS_MODULE,
};
@@ -800,9 +761,6 @@ static struct uvcg_streaming_header *to_uvcg_streaming_header(struct config_item
return container_of(item, struct uvcg_streaming_header, item);
}
-CONFIGFS_ATTR_STRUCT(uvcg_streaming_header);
-CONFIGFS_ATTR_OPS(uvcg_streaming_header);
-
static int uvcg_streaming_header_allow_link(struct config_item *src,
struct config_item *target)
{
@@ -893,16 +851,15 @@ out:
}
static struct configfs_item_operations uvcg_streaming_header_item_ops = {
- .show_attribute = uvcg_streaming_header_attr_show,
- .store_attribute = uvcg_streaming_header_attr_store,
.allow_link = uvcg_streaming_header_allow_link,
.drop_link = uvcg_streaming_header_drop_link,
};
#define UVCG_STREAMING_HEADER_ATTR(cname, aname, conv) \
static ssize_t uvcg_streaming_header_##cname##_show( \
- struct uvcg_streaming_header *sh, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_streaming_header *sh = to_uvcg_streaming_header(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &sh->item.ci_group->cg_subsys->su_mutex;\
@@ -921,9 +878,7 @@ static ssize_t uvcg_streaming_header_##cname##_show( \
return result; \
} \
\
-static struct uvcg_streaming_header_attribute \
- uvcg_streaming_header_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_streaming_header_##cname##_show)
+UVC_ATTR_RO(uvcg_streaming_header_, cname, aname)
#define identity_conv(x) (x)
@@ -939,11 +894,11 @@ UVCG_STREAMING_HEADER_ATTR(b_trigger_usage, bTriggerUsage, identity_conv);
#undef UVCG_STREAMING_HEADER_ATTR
static struct configfs_attribute *uvcg_streaming_header_attrs[] = {
- &uvcg_streaming_header_bm_info.attr,
- &uvcg_streaming_header_b_terminal_link.attr,
- &uvcg_streaming_header_b_still_capture_method.attr,
- &uvcg_streaming_header_b_trigger_support.attr,
- &uvcg_streaming_header_b_trigger_usage.attr,
+ &uvcg_streaming_header_attr_bm_info,
+ &uvcg_streaming_header_attr_b_terminal_link,
+ &uvcg_streaming_header_attr_b_still_capture_method,
+ &uvcg_streaming_header_attr_b_trigger_support,
+ &uvcg_streaming_header_attr_b_trigger_usage,
NULL,
};
@@ -1022,17 +977,10 @@ static struct uvcg_frame *to_uvcg_frame(struct config_item *item)
return container_of(item, struct uvcg_frame, item);
}
-CONFIGFS_ATTR_STRUCT(uvcg_frame);
-CONFIGFS_ATTR_OPS(uvcg_frame);
-
-static struct configfs_item_operations uvcg_frame_item_ops = {
- .show_attribute = uvcg_frame_attr_show,
- .store_attribute = uvcg_frame_attr_store,
-};
-
#define UVCG_FRAME_ATTR(cname, aname, to_cpu_endian, to_little_endian, bits) \
-static ssize_t uvcg_frame_##cname##_show(struct uvcg_frame *f, char *page)\
+static ssize_t uvcg_frame_##cname##_show(struct config_item *item, char *page)\
{ \
+ struct uvcg_frame *f = to_uvcg_frame(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &f->item.ci_group->cg_subsys->su_mutex;\
@@ -1051,9 +999,10 @@ static ssize_t uvcg_frame_##cname##_show(struct uvcg_frame *f, char *page)\
return result; \
} \
\
-static ssize_t uvcg_frame_##cname##_store(struct uvcg_frame *f, \
+static ssize_t uvcg_frame_##cname##_store(struct config_item *item, \
const char *page, size_t len)\
{ \
+ struct uvcg_frame *f = to_uvcg_frame(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct uvcg_format *fmt; \
@@ -1085,11 +1034,7 @@ end: \
return ret; \
} \
\
-static struct uvcg_frame_attribute \
- uvcg_frame_##cname = \
- __CONFIGFS_ATTR(aname, S_IRUGO | S_IWUSR, \
- uvcg_frame_##cname##_show, \
- uvcg_frame_##cname##_store)
+UVC_ATTR(uvcg_frame_, cname, aname);
#define noop_conversion(x) (x)
@@ -1108,9 +1053,10 @@ UVCG_FRAME_ATTR(dw_default_frame_interval, dwDefaultFrameInterval,
#undef UVCG_FRAME_ATTR
-static ssize_t uvcg_frame_dw_frame_interval_show(struct uvcg_frame *frm,
+static ssize_t uvcg_frame_dw_frame_interval_show(struct config_item *item,
char *page)
{
+ struct uvcg_frame *frm = to_uvcg_frame(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct mutex *su_mutex = &frm->item.ci_group->cg_subsys->su_mutex;
@@ -1185,9 +1131,10 @@ static int __uvcg_iter_frm_intrv(const char *page, size_t len,
return 0;
}
-static ssize_t uvcg_frame_dw_frame_interval_store(struct uvcg_frame *ch,
+static ssize_t uvcg_frame_dw_frame_interval_store(struct config_item *item,
const char *page, size_t len)
{
+ struct uvcg_frame *ch = to_uvcg_frame(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct uvcg_format *fmt;
@@ -1234,26 +1181,21 @@ end:
return ret;
}
-static struct uvcg_frame_attribute
- uvcg_frame_dw_frame_interval =
- __CONFIGFS_ATTR(dwFrameInterval, S_IRUGO | S_IWUSR,
- uvcg_frame_dw_frame_interval_show,
- uvcg_frame_dw_frame_interval_store);
+UVC_ATTR(uvcg_frame_, dw_frame_interval, dwFrameInterval);
static struct configfs_attribute *uvcg_frame_attrs[] = {
- &uvcg_frame_bm_capabilities.attr,
- &uvcg_frame_w_width.attr,
- &uvcg_frame_w_height.attr,
- &uvcg_frame_dw_min_bit_rate.attr,
- &uvcg_frame_dw_max_bit_rate.attr,
- &uvcg_frame_dw_max_video_frame_buffer_size.attr,
- &uvcg_frame_dw_default_frame_interval.attr,
- &uvcg_frame_dw_frame_interval.attr,
+ &uvcg_frame_attr_bm_capabilities,
+ &uvcg_frame_attr_w_width,
+ &uvcg_frame_attr_w_height,
+ &uvcg_frame_attr_dw_min_bit_rate,
+ &uvcg_frame_attr_dw_max_bit_rate,
+ &uvcg_frame_attr_dw_max_video_frame_buffer_size,
+ &uvcg_frame_attr_dw_default_frame_interval,
+ &uvcg_frame_attr_dw_frame_interval,
NULL,
};
static struct config_item_type uvcg_frame_type = {
- .ct_item_ops = &uvcg_frame_item_ops,
.ct_attrs = uvcg_frame_attrs,
.ct_owner = THIS_MODULE,
};
@@ -1333,22 +1275,15 @@ static struct uvcg_uncompressed *to_uvcg_uncompressed(struct config_item *item)
struct uvcg_uncompressed, fmt);
}
-CONFIGFS_ATTR_STRUCT(uvcg_uncompressed);
-CONFIGFS_ATTR_OPS(uvcg_uncompressed);
-
-static struct configfs_item_operations uvcg_uncompressed_item_ops = {
- .show_attribute = uvcg_uncompressed_attr_show,
- .store_attribute = uvcg_uncompressed_attr_store,
-};
-
static struct configfs_group_operations uvcg_uncompressed_group_ops = {
.make_item = uvcg_frame_make,
.drop_item = uvcg_frame_drop,
};
-static ssize_t uvcg_uncompressed_guid_format_show(struct uvcg_uncompressed *ch,
+static ssize_t uvcg_uncompressed_guid_format_show(struct config_item *item,
char *page)
{
+ struct uvcg_uncompressed *ch = to_uvcg_uncompressed(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex;
@@ -1367,9 +1302,10 @@ static ssize_t uvcg_uncompressed_guid_format_show(struct uvcg_uncompressed *ch,
return sizeof(ch->desc.guidFormat);
}
-static ssize_t uvcg_uncompressed_guid_format_store(struct uvcg_uncompressed *ch,
+static ssize_t uvcg_uncompressed_guid_format_store(struct config_item *item,
const char *page, size_t len)
{
+ struct uvcg_uncompressed *ch = to_uvcg_uncompressed(item);
struct f_uvc_opts *opts;
struct config_item *opts_item;
struct mutex *su_mutex = &ch->fmt.group.cg_subsys->su_mutex;
@@ -1396,16 +1332,13 @@ end:
return ret;
}
-static struct uvcg_uncompressed_attribute uvcg_uncompressed_guid_format =
- __CONFIGFS_ATTR(guidFormat, S_IRUGO | S_IWUSR,
- uvcg_uncompressed_guid_format_show,
- uvcg_uncompressed_guid_format_store);
-
+UVC_ATTR(uvcg_uncompressed_, guid_format, guidFormat);
#define UVCG_UNCOMPRESSED_ATTR_RO(cname, aname, conv) \
static ssize_t uvcg_uncompressed_##cname##_show( \
- struct uvcg_uncompressed *u, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1424,14 +1357,13 @@ static ssize_t uvcg_uncompressed_##cname##_show( \
return result; \
} \
\
-static struct uvcg_uncompressed_attribute \
- uvcg_uncompressed_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_uncompressed_##cname##_show)
+UVC_ATTR_RO(uvcg_uncompressed_, cname, aname);
#define UVCG_UNCOMPRESSED_ATTR(cname, aname, conv) \
static ssize_t uvcg_uncompressed_##cname##_show( \
- struct uvcg_uncompressed *u, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1451,9 +1383,10 @@ static ssize_t uvcg_uncompressed_##cname##_show( \
} \
\
static ssize_t \
-uvcg_uncompressed_##cname##_store(struct uvcg_uncompressed *u, \
+uvcg_uncompressed_##cname##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct uvcg_uncompressed *u = to_uvcg_uncompressed(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1487,11 +1420,7 @@ end: \
return ret; \
} \
\
-static struct uvcg_uncompressed_attribute \
- uvcg_uncompressed_##cname = \
- __CONFIGFS_ATTR(aname, S_IRUGO | S_IWUSR, \
- uvcg_uncompressed_##cname##_show, \
- uvcg_uncompressed_##cname##_store)
+UVC_ATTR(uvcg_uncompressed_, cname, aname);
#define identity_conv(x) (x)
@@ -1508,36 +1437,34 @@ UVCG_UNCOMPRESSED_ATTR_RO(bm_interface_flags, bmInterfaceFlags, identity_conv);
#undef UVCG_UNCOMPRESSED_ATTR_RO
static inline ssize_t
-uvcg_uncompressed_bma_controls_show(struct uvcg_uncompressed *unc, char *page)
+uvcg_uncompressed_bma_controls_show(struct config_item *item, char *page)
{
+ struct uvcg_uncompressed *unc = to_uvcg_uncompressed(item);
return uvcg_format_bma_controls_show(&unc->fmt, page);
}
static inline ssize_t
-uvcg_uncompressed_bma_controls_store(struct uvcg_uncompressed *ch,
+uvcg_uncompressed_bma_controls_store(struct config_item *item,
const char *page, size_t len)
{
- return uvcg_format_bma_controls_store(&ch->fmt, page, len);
+ struct uvcg_uncompressed *unc = to_uvcg_uncompressed(item);
+ return uvcg_format_bma_controls_store(&unc->fmt, page, len);
}
-static struct uvcg_uncompressed_attribute uvcg_uncompressed_bma_controls =
- __CONFIGFS_ATTR(bmaControls, S_IRUGO | S_IWUSR,
- uvcg_uncompressed_bma_controls_show,
- uvcg_uncompressed_bma_controls_store);
+UVC_ATTR(uvcg_uncompressed_, bma_controls, bmaControls);
static struct configfs_attribute *uvcg_uncompressed_attrs[] = {
- &uvcg_uncompressed_guid_format.attr,
- &uvcg_uncompressed_b_bits_per_pixel.attr,
- &uvcg_uncompressed_b_default_frame_index.attr,
- &uvcg_uncompressed_b_aspect_ratio_x.attr,
- &uvcg_uncompressed_b_aspect_ratio_y.attr,
- &uvcg_uncompressed_bm_interface_flags.attr,
- &uvcg_uncompressed_bma_controls.attr,
+ &uvcg_uncompressed_attr_guid_format,
+ &uvcg_uncompressed_attr_b_bits_per_pixel,
+ &uvcg_uncompressed_attr_b_default_frame_index,
+ &uvcg_uncompressed_attr_b_aspect_ratio_x,
+ &uvcg_uncompressed_attr_b_aspect_ratio_y,
+ &uvcg_uncompressed_attr_bm_interface_flags,
+ &uvcg_uncompressed_attr_bma_controls,
NULL,
};
static struct config_item_type uvcg_uncompressed_type = {
- .ct_item_ops = &uvcg_uncompressed_item_ops,
.ct_group_ops = &uvcg_uncompressed_group_ops,
.ct_attrs = uvcg_uncompressed_attrs,
.ct_owner = THIS_MODULE,
@@ -1605,22 +1532,15 @@ static struct uvcg_mjpeg *to_uvcg_mjpeg(struct config_item *item)
struct uvcg_mjpeg, fmt);
}
-CONFIGFS_ATTR_STRUCT(uvcg_mjpeg);
-CONFIGFS_ATTR_OPS(uvcg_mjpeg);
-
-static struct configfs_item_operations uvcg_mjpeg_item_ops = {
- .show_attribute = uvcg_mjpeg_attr_show,
- .store_attribute = uvcg_mjpeg_attr_store,
-};
-
static struct configfs_group_operations uvcg_mjpeg_group_ops = {
.make_item = uvcg_frame_make,
.drop_item = uvcg_frame_drop,
};
#define UVCG_MJPEG_ATTR_RO(cname, aname, conv) \
-static ssize_t uvcg_mjpeg_##cname##_show(struct uvcg_mjpeg *u, char *page)\
+static ssize_t uvcg_mjpeg_##cname##_show(struct config_item *item, char *page)\
{ \
+ struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1639,13 +1559,12 @@ static ssize_t uvcg_mjpeg_##cname##_show(struct uvcg_mjpeg *u, char *page)\
return result; \
} \
\
-static struct uvcg_mjpeg_attribute \
- uvcg_mjpeg_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_mjpeg_##cname##_show)
+UVC_ATTR_RO(uvcg_mjpeg_, cname, aname)
#define UVCG_MJPEG_ATTR(cname, aname, conv) \
-static ssize_t uvcg_mjpeg_##cname##_show(struct uvcg_mjpeg *u, char *page)\
+static ssize_t uvcg_mjpeg_##cname##_show(struct config_item *item, char *page)\
{ \
+ struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1665,9 +1584,10 @@ static ssize_t uvcg_mjpeg_##cname##_show(struct uvcg_mjpeg *u, char *page)\
} \
\
static ssize_t \
-uvcg_mjpeg_##cname##_store(struct uvcg_mjpeg *u, \
+uvcg_mjpeg_##cname##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct uvcg_mjpeg *u = to_uvcg_mjpeg(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &u->fmt.group.cg_subsys->su_mutex; \
@@ -1701,11 +1621,7 @@ end: \
return ret; \
} \
\
-static struct uvcg_mjpeg_attribute \
- uvcg_mjpeg_##cname = \
- __CONFIGFS_ATTR(aname, S_IRUGO | S_IWUSR, \
- uvcg_mjpeg_##cname##_show, \
- uvcg_mjpeg_##cname##_store)
+UVC_ATTR(uvcg_mjpeg_, cname, aname)
#define identity_conv(x) (x)
@@ -1722,35 +1638,33 @@ UVCG_MJPEG_ATTR_RO(bm_interface_flags, bmInterfaceFlags, identity_conv);
#undef UVCG_MJPEG_ATTR_RO
static inline ssize_t
-uvcg_mjpeg_bma_controls_show(struct uvcg_mjpeg *unc, char *page)
+uvcg_mjpeg_bma_controls_show(struct config_item *item, char *page)
{
- return uvcg_format_bma_controls_show(&unc->fmt, page);
+ struct uvcg_mjpeg *u = to_uvcg_mjpeg(item);
+ return uvcg_format_bma_controls_show(&u->fmt, page);
}
static inline ssize_t
-uvcg_mjpeg_bma_controls_store(struct uvcg_mjpeg *ch,
+uvcg_mjpeg_bma_controls_store(struct config_item *item,
const char *page, size_t len)
{
- return uvcg_format_bma_controls_store(&ch->fmt, page, len);
+ struct uvcg_mjpeg *u = to_uvcg_mjpeg(item);
+ return uvcg_format_bma_controls_store(&u->fmt, page, len);
}
-static struct uvcg_mjpeg_attribute uvcg_mjpeg_bma_controls =
- __CONFIGFS_ATTR(bmaControls, S_IRUGO | S_IWUSR,
- uvcg_mjpeg_bma_controls_show,
- uvcg_mjpeg_bma_controls_store);
+UVC_ATTR(uvcg_mjpeg_, bma_controls, bmaControls);
static struct configfs_attribute *uvcg_mjpeg_attrs[] = {
- &uvcg_mjpeg_b_default_frame_index.attr,
- &uvcg_mjpeg_bm_flags.attr,
- &uvcg_mjpeg_b_aspect_ratio_x.attr,
- &uvcg_mjpeg_b_aspect_ratio_y.attr,
- &uvcg_mjpeg_bm_interface_flags.attr,
- &uvcg_mjpeg_bma_controls.attr,
+ &uvcg_mjpeg_attr_b_default_frame_index,
+ &uvcg_mjpeg_attr_bm_flags,
+ &uvcg_mjpeg_attr_b_aspect_ratio_x,
+ &uvcg_mjpeg_attr_b_aspect_ratio_y,
+ &uvcg_mjpeg_attr_bm_interface_flags,
+ &uvcg_mjpeg_attr_bma_controls,
NULL,
};
static struct config_item_type uvcg_mjpeg_type = {
- .ct_item_ops = &uvcg_mjpeg_item_ops,
.ct_group_ops = &uvcg_mjpeg_group_ops,
.ct_attrs = uvcg_mjpeg_attrs,
.ct_owner = THIS_MODULE,
@@ -1811,17 +1725,12 @@ static inline struct uvcg_default_color_matching
struct uvcg_default_color_matching, group);
}
-CONFIGFS_ATTR_STRUCT(uvcg_default_color_matching);
-CONFIGFS_ATTR_OPS_RO(uvcg_default_color_matching);
-
-static struct configfs_item_operations uvcg_default_color_matching_item_ops = {
- .show_attribute = uvcg_default_color_matching_attr_show,
-};
-
#define UVCG_DEFAULT_COLOR_MATCHING_ATTR(cname, aname, conv) \
static ssize_t uvcg_default_color_matching_##cname##_show( \
- struct uvcg_default_color_matching *dc, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct uvcg_default_color_matching *dc = \
+ to_uvcg_default_color_matching(item); \
struct f_uvc_opts *opts; \
struct config_item *opts_item; \
struct mutex *su_mutex = &dc->group.cg_subsys->su_mutex; \
@@ -1842,9 +1751,7 @@ static ssize_t uvcg_default_color_matching_##cname##_show( \
return result; \
} \
\
-static struct uvcg_default_color_matching_attribute \
- uvcg_default_color_matching_##cname = \
- __CONFIGFS_ATTR_RO(aname, uvcg_default_color_matching_##cname##_show)
+UVC_ATTR_RO(uvcg_default_color_matching_, cname, aname)
#define identity_conv(x) (x)
@@ -1860,14 +1767,13 @@ UVCG_DEFAULT_COLOR_MATCHING_ATTR(b_matrix_coefficients, bMatrixCoefficients,
#undef UVCG_DEFAULT_COLOR_MATCHING_ATTR
static struct configfs_attribute *uvcg_default_color_matching_attrs[] = {
- &uvcg_default_color_matching_b_color_primaries.attr,
- &uvcg_default_color_matching_b_transfer_characteristics.attr,
- &uvcg_default_color_matching_b_matrix_coefficients.attr,
+ &uvcg_default_color_matching_attr_b_color_primaries,
+ &uvcg_default_color_matching_attr_b_transfer_characteristics,
+ &uvcg_default_color_matching_attr_b_matrix_coefficients,
NULL,
};
static struct config_item_type uvcg_default_color_matching_type = {
- .ct_item_ops = &uvcg_default_color_matching_item_ops,
.ct_attrs = uvcg_default_color_matching_attrs,
.ct_owner = THIS_MODULE,
};
@@ -2285,9 +2191,6 @@ static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item)
func_inst.group);
}
-CONFIGFS_ATTR_STRUCT(f_uvc_opts);
-CONFIGFS_ATTR_OPS(f_uvc_opts);
-
static void uvc_attr_release(struct config_item *item)
{
struct f_uvc_opts *opts = to_f_uvc_opts(item);
@@ -2297,14 +2200,13 @@ static void uvc_attr_release(struct config_item *item)
static struct configfs_item_operations uvc_item_ops = {
.release = uvc_attr_release,
- .show_attribute = f_uvc_opts_attr_show,
- .store_attribute = f_uvc_opts_attr_store,
};
#define UVCG_OPTS_ATTR(cname, conv, str2u, uxx, vnoc, limit) \
static ssize_t f_uvc_opts_##cname##_show( \
- struct f_uvc_opts *opts, char *page) \
+ struct config_item *item, char *page) \
{ \
+ struct f_uvc_opts *opts = to_f_uvc_opts(item); \
int result; \
\
mutex_lock(&opts->lock); \
@@ -2315,9 +2217,10 @@ static ssize_t f_uvc_opts_##cname##_show( \
} \
\
static ssize_t \
-f_uvc_opts_##cname##_store(struct f_uvc_opts *opts, \
+f_uvc_opts_##cname##_store(struct config_item *item, \
const char *page, size_t len) \
{ \
+ struct f_uvc_opts *opts = to_f_uvc_opts(item); \
int ret; \
uxx num; \
\
@@ -2342,11 +2245,7 @@ end: \
return ret; \
} \
\
-static struct f_uvc_opts_attribute \
- f_uvc_opts_attribute_##cname = \
- __CONFIGFS_ATTR(cname, S_IRUGO | S_IWUSR, \
- f_uvc_opts_##cname##_show, \
- f_uvc_opts_##cname##_store)
+UVC_ATTR(f_uvc_opts_, cname, aname)
#define identity_conv(x) (x)
@@ -2362,9 +2261,9 @@ UVCG_OPTS_ATTR(streaming_maxburst, identity_conv, kstrtou8, u8, identity_conv,
#undef UVCG_OPTS_ATTR
static struct configfs_attribute *uvc_attrs[] = {
- &f_uvc_opts_attribute_streaming_interval.attr,
- &f_uvc_opts_attribute_streaming_maxpacket.attr,
- &f_uvc_opts_attribute_streaming_maxburst.attr,
+ &f_uvc_opts_attr_streaming_interval,
+ &f_uvc_opts_attr_streaming_maxpacket,
+ &f_uvc_opts_attr_streaming_maxburst,
NULL,
};
diff --git a/kernel/drivers/usb/gadget/function/uvc_queue.c b/kernel/drivers/usb/gadget/function/uvc_queue.c
index d617c39a0..51d4a1703 100644
--- a/kernel/drivers/usb/gadget/function/uvc_queue.c
+++ b/kernel/drivers/usb/gadget/function/uvc_queue.c
@@ -41,7 +41,7 @@
* videobuf2 queue operations
*/
-static int uvc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+static int uvc_queue_setup(struct vb2_queue *vq, const void *parg,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
@@ -61,9 +61,10 @@ static int uvc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
static int uvc_buffer_prepare(struct vb2_buffer *vb)
{
struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
- struct uvc_buffer *buf = container_of(vb, struct uvc_buffer, buf);
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf);
- if (vb->v4l2_buf.type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+ if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) {
uvc_trace(UVC_TRACE_CAPTURE, "[E] Bytes used out of bounds.\n");
return -EINVAL;
@@ -75,7 +76,7 @@ static int uvc_buffer_prepare(struct vb2_buffer *vb)
buf->state = UVC_BUF_STATE_QUEUED;
buf->mem = vb2_plane_vaddr(vb, 0);
buf->length = vb2_plane_size(vb, 0);
- if (vb->v4l2_buf.type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
buf->bytesused = 0;
else
buf->bytesused = vb2_get_plane_payload(vb, 0);
@@ -86,7 +87,8 @@ static int uvc_buffer_prepare(struct vb2_buffer *vb)
static void uvc_buffer_queue(struct vb2_buffer *vb)
{
struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
- struct uvc_buffer *buf = container_of(vb, struct uvc_buffer, buf);
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct uvc_buffer *buf = container_of(vbuf, struct uvc_buffer, buf);
unsigned long flags;
spin_lock_irqsave(&queue->irqlock, flags);
@@ -98,7 +100,7 @@ static void uvc_buffer_queue(struct vb2_buffer *vb)
* directly. The next QBUF call will fail with -ENODEV.
*/
buf->state = UVC_BUF_STATE_ERROR;
- vb2_buffer_done(&buf->buf, VB2_BUF_STATE_ERROR);
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
spin_unlock_irqrestore(&queue->irqlock, flags);
@@ -242,7 +244,7 @@ void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
queue);
list_del(&buf->queue);
buf->state = UVC_BUF_STATE_ERROR;
- vb2_buffer_done(&buf->buf, VB2_BUF_STATE_ERROR);
+ vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_ERROR);
}
/* This must be protected by the irqlock spinlock to avoid race
* conditions between uvc_queue_buffer and the disconnection event that
@@ -314,7 +316,7 @@ struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) &&
buf->length != buf->bytesused) {
buf->state = UVC_BUF_STATE_QUEUED;
- vb2_set_plane_payload(&buf->buf, 0, 0);
+ vb2_set_plane_payload(&buf->buf.vb2_buf, 0, 0);
return buf;
}
@@ -325,12 +327,12 @@ struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
else
nextbuf = NULL;
- buf->buf.v4l2_buf.field = V4L2_FIELD_NONE;
- buf->buf.v4l2_buf.sequence = queue->sequence++;
- v4l2_get_timestamp(&buf->buf.v4l2_buf.timestamp);
+ buf->buf.field = V4L2_FIELD_NONE;
+ buf->buf.sequence = queue->sequence++;
+ v4l2_get_timestamp(&buf->buf.timestamp);
- vb2_set_plane_payload(&buf->buf, 0, buf->bytesused);
- vb2_buffer_done(&buf->buf, VB2_BUF_STATE_DONE);
+ vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused);
+ vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE);
return nextbuf;
}
diff --git a/kernel/drivers/usb/gadget/function/uvc_queue.h b/kernel/drivers/usb/gadget/function/uvc_queue.h
index 01ca9eab3..ac461a9a1 100644
--- a/kernel/drivers/usb/gadget/function/uvc_queue.h
+++ b/kernel/drivers/usb/gadget/function/uvc_queue.h
@@ -6,7 +6,7 @@
#include <linux/kernel.h>
#include <linux/poll.h>
#include <linux/videodev2.h>
-#include <media/videobuf2-core.h>
+#include <media/videobuf2-v4l2.h>
/* Maximum frame size in bytes, for sanity checking. */
#define UVC_MAX_FRAME_SIZE (16*1024*1024)
@@ -26,7 +26,7 @@ enum uvc_buffer_state {
};
struct uvc_buffer {
- struct vb2_buffer buf;
+ struct vb2_v4l2_buffer buf;
struct list_head queue;
enum uvc_buffer_state state;
diff --git a/kernel/drivers/usb/gadget/legacy/Kconfig b/kernel/drivers/usb/gadget/legacy/Kconfig
index d5a7102de..4d682ad7b 100644
--- a/kernel/drivers/usb/gadget/legacy/Kconfig
+++ b/kernel/drivers/usb/gadget/legacy/Kconfig
@@ -339,6 +339,7 @@ config USB_CDC_COMPOSITE
config USB_G_NOKIA
tristate "Nokia composite gadget"
depends on PHONET
+ depends on BLOCK
select USB_LIBCOMPOSITE
select USB_U_SERIAL
select USB_U_ETHER
@@ -346,6 +347,7 @@ config USB_G_NOKIA
select USB_F_OBEX
select USB_F_PHONET
select USB_F_ECM
+ select USB_F_MASS_STORAGE
help
The Nokia composite gadget provides support for acm, obex
and phonet in only one composite gadget driver.
diff --git a/kernel/drivers/usb/gadget/legacy/acm_ms.c b/kernel/drivers/usb/gadget/legacy/acm_ms.c
index 1194b09ae..4b158e2d1 100644
--- a/kernel/drivers/usb/gadget/legacy/acm_ms.c
+++ b/kernel/drivers/usb/gadget/legacy/acm_ms.c
@@ -58,21 +58,7 @@ static struct usb_device_descriptor device_desc = {
/*.bNumConfigurations = DYNAMIC*/
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /*
- * REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/* string IDs are assigned dynamically */
static struct usb_string strings_dev[] = {
@@ -200,10 +186,6 @@ static int acm_ms_bind(struct usb_composite_dev *cdev)
if (status)
goto fail;
- status = fsg_common_set_nluns(opts->common, config.nluns);
- if (status)
- goto fail_set_nluns;
-
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
@@ -225,10 +207,21 @@ static int acm_ms_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto fail_string_ids;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* register our configuration */
status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
if (status < 0)
- goto fail_string_ids;
+ goto fail_otg_desc;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
@@ -236,11 +229,12 @@ static int acm_ms_bind(struct usb_composite_dev *cdev)
return 0;
/* error recovery */
+fail_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail_string_ids:
fsg_common_remove_luns(opts->common);
fail_set_cdev:
- fsg_common_free_luns(opts->common);
-fail_set_nluns:
fsg_common_free_buffers(opts->common);
fail:
usb_put_function_instance(fi_msg);
@@ -255,6 +249,9 @@ static int acm_ms_unbind(struct usb_composite_dev *cdev)
usb_put_function_instance(fi_msg);
usb_put_function(f_acm);
usb_put_function_instance(f_acm_inst);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/audio.c b/kernel/drivers/usb/gadget/legacy/audio.c
index f289caf18..685cf3b4b 100644
--- a/kernel/drivers/usb/gadget/legacy/audio.c
+++ b/kernel/drivers/usb/gadget/legacy/audio.c
@@ -15,7 +15,6 @@
#include <linux/module.h>
#include <linux/usb/composite.h>
-#include "gadget_chips.h"
#define DRIVER_DESC "Linux USB Audio Gadget"
#define DRIVER_VERSION "Feb 2, 2012"
@@ -124,7 +123,7 @@ static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
- .bcdUSB = __constant_cpu_to_le16(0x200),
+ .bcdUSB = cpu_to_le16(0x200),
#ifdef CONFIG_GADGET_UAC1
.bDeviceClass = USB_CLASS_PER_INTERFACE,
@@ -141,8 +140,8 @@ static struct usb_device_descriptor device_desc = {
* we support. (As does bNumConfigurations.) These values can
* also be overridden by module parameters.
*/
- .idVendor = __constant_cpu_to_le16(AUDIO_VENDOR_NUM),
- .idProduct = __constant_cpu_to_le16(AUDIO_PRODUCT_NUM),
+ .idVendor = cpu_to_le16(AUDIO_VENDOR_NUM),
+ .idProduct = cpu_to_le16(AUDIO_PRODUCT_NUM),
/* .bcdDevice = f(hardware) */
/* .iManufacturer = DYNAMIC */
/* .iProduct = DYNAMIC */
@@ -150,20 +149,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/*-------------------------------------------------------------------------*/
@@ -259,14 +245,28 @@ static int audio_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(cdev->gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc)
+ goto fail;
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
status = usb_add_config(cdev, &audio_config_driver, audio_do_config);
if (status < 0)
- goto fail;
+ goto fail_otg_desc;
usb_composite_overwrite_options(cdev, &coverwrite);
INFO(cdev, "%s, version: %s\n", DRIVER_DESC, DRIVER_VERSION);
return 0;
+fail_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail:
#ifndef CONFIG_GADGET_UAC1
usb_put_function_instance(fi_uac2);
@@ -289,6 +289,9 @@ static int audio_unbind(struct usb_composite_dev *cdev)
if (!IS_ERR_OR_NULL(fi_uac2))
usb_put_function_instance(fi_uac2);
#endif
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/cdc2.c b/kernel/drivers/usb/gadget/legacy/cdc2.c
index afd3e3792..ecd8c8d62 100644
--- a/kernel/drivers/usb/gadget/legacy/cdc2.c
+++ b/kernel/drivers/usb/gadget/legacy/cdc2.c
@@ -60,21 +60,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
-
+static const struct usb_descriptor_header *otg_desc[2];
/* string IDs are assigned dynamically */
static struct usb_string strings_dev[] = {
@@ -193,10 +179,21 @@ static int cdc_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto fail1;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* register our configuration */
status = usb_add_config(cdev, &cdc_config_driver, cdc_do_config);
if (status < 0)
- goto fail1;
+ goto fail2;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
@@ -204,6 +201,9 @@ static int cdc_bind(struct usb_composite_dev *cdev)
return 0;
+fail2:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail1:
usb_put_function_instance(fi_serial);
fail:
@@ -219,6 +219,9 @@ static int cdc_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_ecm);
if (!IS_ERR_OR_NULL(fi_ecm))
usb_put_function_instance(fi_ecm);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/dbgp.c b/kernel/drivers/usb/gadget/legacy/dbgp.c
index 204b10b1a..99ca3dabc 100644
--- a/kernel/drivers/usb/gadget/legacy/dbgp.c
+++ b/kernel/drivers/usb/gadget/legacy/dbgp.c
@@ -35,10 +35,10 @@ static struct dbgp {
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
- .bcdUSB = __constant_cpu_to_le16(0x0200),
+ .bcdUSB = cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_VENDOR_SPEC,
- .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_ID),
- .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_ID),
+ .idVendor = cpu_to_le16(DRIVER_VENDOR_ID),
+ .idProduct = cpu_to_le16(DRIVER_PRODUCT_ID),
.bNumConfigurations = 1,
};
@@ -79,10 +79,7 @@ static int dbgp_consume(char *buf, unsigned len)
static void __disable_ep(struct usb_ep *ep)
{
- if (ep && ep->driver_data == dbgp.gadget) {
- usb_ep_disable(ep);
- ep->driver_data = NULL;
- }
+ usb_ep_disable(ep);
}
static void dbgp_disable_ep(void)
@@ -171,7 +168,6 @@ static int __enable_ep(struct usb_ep *ep, struct usb_endpoint_descriptor *desc)
int err;
ep->desc = desc;
err = usb_ep_enable(ep);
- ep->driver_data = dbgp.gadget;
return err;
}
@@ -229,8 +225,6 @@ static void dbgp_unbind(struct usb_gadget *gadget)
usb_ep_free_request(gadget->ep0, dbgp.req);
dbgp.req = NULL;
}
-
- gadget->ep0->driver_data = NULL;
}
#ifdef CONFIG_USB_G_DBGP_SERIAL
@@ -249,20 +243,17 @@ static int dbgp_configure_endpoints(struct usb_gadget *gadget)
goto fail_1;
}
- dbgp.i_ep->driver_data = gadget;
i_desc.wMaxPacketSize =
- __constant_cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE);
+ cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE);
dbgp.o_ep = usb_ep_autoconfig(gadget, &o_desc);
if (!dbgp.o_ep) {
- dbgp.i_ep->driver_data = NULL;
stp = 2;
- goto fail_2;
+ goto fail_1;
}
- dbgp.o_ep->driver_data = gadget;
o_desc.wMaxPacketSize =
- __constant_cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE);
+ cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE);
dbg_desc.bDebugInEndpoint = i_desc.bEndpointAddress;
dbg_desc.bDebugOutEndpoint = o_desc.bEndpointAddress;
@@ -277,8 +268,6 @@ static int dbgp_configure_endpoints(struct usb_gadget *gadget)
return 0;
-fail_2:
- dbgp.i_ep->driver_data = NULL;
fail_1:
dev_dbg(&dbgp.gadget->dev, "ep config: failure (%d)\n", stp);
return -ENODEV;
@@ -306,7 +295,6 @@ static int dbgp_bind(struct usb_gadget *gadget,
}
dbgp.req->length = DBGP_REQ_EP0_LEN;
- gadget->ep0->driver_data = gadget;
#ifdef CONFIG_USB_G_DBGP_SERIAL
dbgp.serial = kzalloc(sizeof(struct gserial), GFP_KERNEL);
@@ -356,8 +344,6 @@ static int dbgp_setup(struct usb_gadget *gadget,
void *data = NULL;
u16 len = 0;
- gadget->ep0->driver_data = gadget;
-
if (request == USB_REQ_GET_DESCRIPTOR) {
switch (value>>8) {
case USB_DT_DEVICE:
diff --git a/kernel/drivers/usb/gadget/legacy/ether.c b/kernel/drivers/usb/gadget/legacy/ether.c
index a3323dca2..31e916022 100644
--- a/kernel/drivers/usb/gadget/legacy/ether.c
+++ b/kernel/drivers/usb/gadget/legacy/ether.c
@@ -171,20 +171,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
static struct usb_string strings_dev[] = {
[USB_GADGET_MANUFACTURER_IDX].s = "",
@@ -416,17 +403,28 @@ static int eth_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto fail1;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* register our configuration(s); RNDIS first, if it's used */
if (has_rndis()) {
status = usb_add_config(cdev, &rndis_config_driver,
rndis_do_config);
if (status < 0)
- goto fail1;
+ goto fail2;
}
status = usb_add_config(cdev, &eth_config_driver, eth_do_config);
if (status < 0)
- goto fail1;
+ goto fail2;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
@@ -434,6 +432,9 @@ static int eth_bind(struct usb_composite_dev *cdev)
return 0;
+fail2:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail1:
if (has_rndis())
usb_put_function_instance(fi_rndis);
@@ -463,6 +464,9 @@ static int eth_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_geth);
usb_put_function_instance(fi_geth);
}
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/g_ffs.c b/kernel/drivers/usb/gadget/legacy/g_ffs.c
index e821931c9..320a81b2b 100644
--- a/kernel/drivers/usb/gadget/legacy/g_ffs.c
+++ b/kernel/drivers/usb/gadget/legacy/g_ffs.c
@@ -88,21 +88,7 @@ MODULE_PARM_DESC(bDeviceProtocol, "USB Device protocol");
module_param_array_named(functions, func_names, charp, &func_num, 0);
MODULE_PARM_DESC(functions, "USB Functions list");
-static const struct usb_descriptor_header *gfs_otg_desc[] = {
- (const struct usb_descriptor_header *)
- &(const struct usb_otg_descriptor) {
- .bLength = sizeof(struct usb_otg_descriptor),
- .bDescriptorType = USB_DT_OTG,
-
- /*
- * REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
- },
-
- NULL
-};
+static const struct usb_descriptor_header *gfs_otg_desc[2];
/* String IDs are assigned dynamically */
static struct usb_string gfs_strings[] = {
@@ -412,6 +398,17 @@ static int gfs_bind(struct usb_composite_dev *cdev)
goto error_rndis;
gfs_dev_desc.iProduct = gfs_strings[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(cdev->gadget) && !gfs_otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc)
+ goto error_rndis;
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ gfs_otg_desc[0] = usb_desc;
+ gfs_otg_desc[1] = NULL;
+ }
+
for (i = 0; i < ARRAY_SIZE(gfs_configurations); ++i) {
struct gfs_configuration *c = gfs_configurations + i;
int sid = USB_GADGET_FIRST_AVAIL_IDX + i;
@@ -432,6 +429,8 @@ static int gfs_bind(struct usb_composite_dev *cdev)
/* TODO */
error_unbind:
+ kfree(gfs_otg_desc[0]);
+ gfs_otg_desc[0] = NULL;
error_rndis:
#ifdef CONFIG_USB_FUNCTIONFS_RNDIS
usb_put_function_instance(fi_rndis);
@@ -473,6 +472,9 @@ static int gfs_unbind(struct usb_composite_dev *cdev)
for (i = 0; i < N_CONF * func_num; ++i)
usb_put_function(*(f_ffs[0] + i));
+ kfree(gfs_otg_desc[0]);
+ gfs_otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/gmidi.c b/kernel/drivers/usb/gadget/legacy/gmidi.c
index da19c486b..8a18348ae 100644
--- a/kernel/drivers/usb/gadget/legacy/gmidi.c
+++ b/kernel/drivers/usb/gadget/legacy/gmidi.c
@@ -35,8 +35,6 @@
#include <linux/usb/audio.h>
#include <linux/usb/midi.h>
-#include "gadget_chips.h"
-
#include "u_midi.h"
/*-------------------------------------------------------------------------*/
@@ -88,10 +86,10 @@ MODULE_PARM_DESC(out_ports, "Number of MIDI output ports");
static struct usb_device_descriptor device_desc = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
- .bcdUSB = __constant_cpu_to_le16(0x0200),
+ .bcdUSB = cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_PER_INTERFACE,
- .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM),
- .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM),
+ .idVendor = cpu_to_le16(DRIVER_VENDOR_NUM),
+ .idProduct = cpu_to_le16(DRIVER_PRODUCT_NUM),
/* .iManufacturer = DYNAMIC */
/* .iProduct = DYNAMIC */
.bNumConfigurations = 1,
diff --git a/kernel/drivers/usb/gadget/legacy/hid.c b/kernel/drivers/usb/gadget/legacy/hid.c
index 2baa57268..7e5d2c484 100644
--- a/kernel/drivers/usb/gadget/legacy/hid.c
+++ b/kernel/drivers/usb/gadget/legacy/hid.c
@@ -19,7 +19,6 @@
#include <linux/usb/composite.h>
#include <linux/usb/g_hid.h>
-#include "gadget_chips.h"
#define DRIVER_DESC "HID Gadget"
#define DRIVER_VERSION "2010/03/16"
@@ -68,21 +67,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
-
+static const struct usb_descriptor_header *otg_desc[2];
/* string IDs are assigned dynamically */
static struct usb_string strings_dev[] = {
@@ -186,16 +171,30 @@ static int hid_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto put;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* register our configuration */
status = usb_add_config(cdev, &config_driver, do_config);
if (status < 0)
- goto put;
+ goto free_otg_desc;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n");
return 0;
+free_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
put:
list_for_each_entry(m, &hidg_func_list, node) {
if (m == n)
@@ -213,6 +212,10 @@ static int hid_unbind(struct usb_composite_dev *cdev)
usb_put_function(n->f);
usb_put_function_instance(n->fi);
}
+
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/inode.c b/kernel/drivers/usb/gadget/legacy/inode.c
index 7b6da0fde..b20a60343 100644
--- a/kernel/drivers/usb/gadget/legacy/inode.c
+++ b/kernel/drivers/usb/gadget/legacy/inode.c
@@ -769,9 +769,12 @@ ep_config (struct ep_data *data, const char *buf, size_t len)
if (data->dev->state == STATE_DEV_UNBOUND) {
value = -ENOENT;
goto gone;
- } else if ((ep = data->ep) == NULL) {
- value = -ENODEV;
- goto gone;
+ } else {
+ ep = data->ep;
+ if (ep == NULL) {
+ value = -ENODEV;
+ goto gone;
+ }
}
switch (data->dev->gadget->speed) {
case USB_SPEED_LOW:
diff --git a/kernel/drivers/usb/gadget/legacy/mass_storage.c b/kernel/drivers/usb/gadget/legacy/mass_storage.c
index e7bfb081f..bda3c5191 100644
--- a/kernel/drivers/usb/gadget/legacy/mass_storage.c
+++ b/kernel/drivers/usb/gadget/legacy/mass_storage.c
@@ -64,21 +64,7 @@ static struct usb_device_descriptor msg_device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /*
- * REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
static struct usb_string strings_dev[] = {
[USB_GADGET_MANUFACTURER_IDX].s = "",
@@ -191,10 +177,6 @@ static int msg_bind(struct usb_composite_dev *cdev)
if (status)
goto fail;
- status = fsg_common_set_nluns(opts->common, config.nluns);
- if (status)
- goto fail_set_nluns;
-
fsg_common_set_ops(opts->common, &ops);
status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
@@ -214,9 +196,20 @@ static int msg_bind(struct usb_composite_dev *cdev)
goto fail_string_ids;
msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(cdev->gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc)
+ goto fail_string_ids;
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
status = usb_add_config(cdev, &msg_config_driver, msg_do_config);
if (status < 0)
- goto fail_string_ids;
+ goto fail_otg_desc;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&cdev->gadget->dev,
@@ -224,11 +217,12 @@ static int msg_bind(struct usb_composite_dev *cdev)
set_bit(0, &msg_registered);
return 0;
+fail_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail_string_ids:
fsg_common_remove_luns(opts->common);
fail_set_cdev:
- fsg_common_free_luns(opts->common);
-fail_set_nluns:
fsg_common_free_buffers(opts->common);
fail:
usb_put_function_instance(fi_msg);
@@ -243,6 +237,9 @@ static int msg_unbind(struct usb_composite_dev *cdev)
if (!IS_ERR(fi_msg))
usb_put_function_instance(fi_msg);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/multi.c b/kernel/drivers/usb/gadget/legacy/multi.c
index b21b51f0c..4fe794ddc 100644
--- a/kernel/drivers/usb/gadget/legacy/multi.c
+++ b/kernel/drivers/usb/gadget/legacy/multi.c
@@ -78,21 +78,7 @@ static struct usb_device_descriptor device_desc = {
.idProduct = cpu_to_le16(MULTI_PRODUCT_NUM),
};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &(struct usb_otg_descriptor){
- .bLength = sizeof(struct usb_otg_descriptor),
- .bDescriptorType = USB_DT_OTG,
-
- /*
- * REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
- },
- NULL,
-};
-
+static const struct usb_descriptor_header *otg_desc[2];
enum {
MULTI_STRING_RNDIS_CONFIG_IDX = USB_GADGET_FIRST_AVAIL_IDX,
@@ -407,10 +393,6 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
if (status)
goto fail2;
- status = fsg_common_set_nluns(fsg_opts->common, config.nluns);
- if (status)
- goto fail_set_nluns;
-
status = fsg_common_set_cdev(fsg_opts->common, cdev, config.can_stall);
if (status)
goto fail_set_cdev;
@@ -429,14 +411,25 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
goto fail_string_ids;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto fail_string_ids;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
/* register configurations */
status = rndis_config_register(cdev);
if (unlikely(status < 0))
- goto fail_string_ids;
+ goto fail_otg_desc;
status = cdc_config_register(cdev);
if (unlikely(status < 0))
- goto fail_string_ids;
+ goto fail_otg_desc;
usb_composite_overwrite_options(cdev, &coverwrite);
/* we're done */
@@ -445,11 +438,12 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
/* error recovery */
+fail_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail_string_ids:
fsg_common_remove_luns(fsg_opts->common);
fail_set_cdev:
- fsg_common_free_luns(fsg_opts->common);
-fail_set_nluns:
fsg_common_free_buffers(fsg_opts->common);
fail2:
usb_put_function_instance(fi_msg);
@@ -490,6 +484,9 @@ static int multi_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_ecm);
usb_put_function_instance(fi_ecm);
#endif
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/ncm.c b/kernel/drivers/usb/gadget/legacy/ncm.c
index 6ce742141..2bae43813 100644
--- a/kernel/drivers/usb/gadget/legacy/ncm.c
+++ b/kernel/drivers/usb/gadget/legacy/ncm.c
@@ -69,20 +69,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/* string IDs are assigned dynamically */
static struct usb_string strings_dev[] = {
@@ -171,16 +158,30 @@ static int gncm_bind(struct usb_composite_dev *cdev)
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
+ if (gadget_is_otg(gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(gadget);
+ if (!usb_desc)
+ goto fail;
+ usb_otg_descriptor_init(gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
+
status = usb_add_config(cdev, &ncm_config_driver,
ncm_do_config);
if (status < 0)
- goto fail;
+ goto fail1;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s\n", DRIVER_DESC);
return 0;
+fail1:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail:
usb_put_function_instance(f_ncm_inst);
return status;
@@ -192,6 +193,9 @@ static int gncm_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_ncm);
if (!IS_ERR_OR_NULL(f_ncm_inst))
usb_put_function_instance(f_ncm_inst);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/nokia.c b/kernel/drivers/usb/gadget/legacy/nokia.c
index 4bb498a38..8b3f6fb18 100644
--- a/kernel/drivers/usb/gadget/legacy/nokia.c
+++ b/kernel/drivers/usb/gadget/legacy/nokia.c
@@ -23,7 +23,7 @@
#include "u_ether.h"
#include "u_phonet.h"
#include "u_ecm.h"
-#include "gadget_chips.h"
+#include "f_mass_storage.h"
/* Defines */
@@ -34,6 +34,29 @@ USB_GADGET_COMPOSITE_OPTIONS();
USB_ETHERNET_MODULE_PARAMETERS();
+static struct fsg_module_parameters fsg_mod_data = {
+ .stall = 0,
+ .luns = 2,
+ .removable_count = 2,
+ .removable = { 1, 1, },
+};
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
+
+#else
+
+/*
+ * Number of buffers we will use.
+ * 2 is usually enough for good buffering pipeline
+ */
+#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
+
+#endif /* CONFIG_USB_DEBUG */
+
+FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
+
#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
@@ -66,10 +89,10 @@ static struct usb_gadget_strings *dev_strings[] = {
static struct usb_device_descriptor device_desc = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
- .bcdUSB = __constant_cpu_to_le16(0x0200),
+ .bcdUSB = cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_COMM,
- .idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
- .idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
+ .idVendor = cpu_to_le16(NOKIA_VENDOR_ID),
+ .idProduct = cpu_to_le16(NOKIA_PRODUCT_ID),
.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM),
/* .iManufacturer = DYNAMIC */
/* .iProduct = DYNAMIC */
@@ -94,6 +117,8 @@ static struct usb_function *f_obex1_cfg2;
static struct usb_function *f_obex2_cfg2;
static struct usb_function *f_phonet_cfg1;
static struct usb_function *f_phonet_cfg2;
+static struct usb_function *f_msg_cfg1;
+static struct usb_function *f_msg_cfg2;
static struct usb_configuration nokia_config_500ma_driver = {
@@ -117,6 +142,7 @@ static struct usb_function_instance *fi_ecm;
static struct usb_function_instance *fi_obex1;
static struct usb_function_instance *fi_obex2;
static struct usb_function_instance *fi_phonet;
+static struct usb_function_instance *fi_msg;
static int nokia_bind_config(struct usb_configuration *c)
{
@@ -125,6 +151,8 @@ static int nokia_bind_config(struct usb_configuration *c)
struct usb_function *f_obex1 = NULL;
struct usb_function *f_ecm;
struct usb_function *f_obex2 = NULL;
+ struct usb_function *f_msg;
+ struct fsg_opts *fsg_opts;
int status = 0;
int obex1_stat = -1;
int obex2_stat = -1;
@@ -160,6 +188,12 @@ static int nokia_bind_config(struct usb_configuration *c)
goto err_get_ecm;
}
+ f_msg = usb_get_function(fi_msg);
+ if (IS_ERR(f_msg)) {
+ status = PTR_ERR(f_msg);
+ goto err_get_msg;
+ }
+
if (!IS_ERR_OR_NULL(f_phonet)) {
phonet_stat = usb_add_function(c, f_phonet);
if (phonet_stat)
@@ -187,21 +221,36 @@ static int nokia_bind_config(struct usb_configuration *c)
pr_debug("could not bind ecm config %d\n", status);
goto err_ecm;
}
+
+ fsg_opts = fsg_opts_from_func_inst(fi_msg);
+
+ status = fsg_common_run_thread(fsg_opts->common);
+ if (status)
+ goto err_msg;
+
+ status = usb_add_function(c, f_msg);
+ if (status)
+ goto err_msg;
+
if (c == &nokia_config_500ma_driver) {
f_acm_cfg1 = f_acm;
f_ecm_cfg1 = f_ecm;
f_phonet_cfg1 = f_phonet;
f_obex1_cfg1 = f_obex1;
f_obex2_cfg1 = f_obex2;
+ f_msg_cfg1 = f_msg;
} else {
f_acm_cfg2 = f_acm;
f_ecm_cfg2 = f_ecm;
f_phonet_cfg2 = f_phonet;
f_obex1_cfg2 = f_obex1;
f_obex2_cfg2 = f_obex2;
+ f_msg_cfg2 = f_msg;
}
return status;
+err_msg:
+ usb_remove_function(c, f_ecm);
err_ecm:
usb_remove_function(c, f_acm);
err_conf:
@@ -211,6 +260,8 @@ err_conf:
usb_remove_function(c, f_obex1);
if (!phonet_stat)
usb_remove_function(c, f_phonet);
+ usb_put_function(f_msg);
+err_get_msg:
usb_put_function(f_ecm);
err_get_ecm:
usb_put_function(f_acm);
@@ -227,6 +278,8 @@ err_get_acm:
static int nokia_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
+ struct fsg_opts *fsg_opts;
+ struct fsg_config fsg_config;
int status;
status = usb_string_ids_tab(cdev, strings_dev);
@@ -238,7 +291,7 @@ static int nokia_bind(struct usb_composite_dev *cdev)
nokia_config_500ma_driver.iConfiguration = status;
nokia_config_100ma_driver.iConfiguration = status;
- if (!gadget_supports_altsettings(gadget)) {
+ if (!gadget_is_altset_supported(gadget)) {
status = -ENODEV;
goto err_usb;
}
@@ -267,11 +320,42 @@ static int nokia_bind(struct usb_composite_dev *cdev)
goto err_acm_inst;
}
+ fi_msg = usb_get_function_instance("mass_storage");
+ if (IS_ERR(fi_msg)) {
+ status = PTR_ERR(fi_msg);
+ goto err_ecm_inst;
+ }
+
+ /* set up mass storage function */
+ fsg_config_from_params(&fsg_config, &fsg_mod_data, fsg_num_buffers);
+ fsg_config.vendor_name = "Nokia";
+ fsg_config.product_name = "N900";
+
+ fsg_opts = fsg_opts_from_func_inst(fi_msg);
+ fsg_opts->no_configfs = true;
+
+ status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers);
+ if (status)
+ goto err_msg_inst;
+
+ status = fsg_common_set_cdev(fsg_opts->common, cdev, fsg_config.can_stall);
+ if (status)
+ goto err_msg_buf;
+
+ fsg_common_set_sysfs(fsg_opts->common, true);
+
+ status = fsg_common_create_luns(fsg_opts->common, &fsg_config);
+ if (status)
+ goto err_msg_buf;
+
+ fsg_common_set_inquiry_string(fsg_opts->common, fsg_config.vendor_name,
+ fsg_config.product_name);
+
/* finally register the configuration */
status = usb_add_config(cdev, &nokia_config_500ma_driver,
nokia_bind_config);
if (status < 0)
- goto err_ecm_inst;
+ goto err_msg_luns;
status = usb_add_config(cdev, &nokia_config_100ma_driver,
nokia_bind_config);
@@ -292,6 +376,12 @@ err_put_cfg1:
if (!IS_ERR_OR_NULL(f_phonet_cfg1))
usb_put_function(f_phonet_cfg1);
usb_put_function(f_ecm_cfg1);
+err_msg_luns:
+ fsg_common_remove_luns(fsg_opts->common);
+err_msg_buf:
+ fsg_common_free_buffers(fsg_opts->common);
+err_msg_inst:
+ usb_put_function_instance(fi_msg);
err_ecm_inst:
usb_put_function_instance(fi_ecm);
err_acm_inst:
@@ -325,7 +415,10 @@ static int nokia_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_acm_cfg2);
usb_put_function(f_ecm_cfg1);
usb_put_function(f_ecm_cfg2);
+ usb_put_function(f_msg_cfg1);
+ usb_put_function(f_msg_cfg2);
+ usb_put_function_instance(fi_msg);
usb_put_function_instance(fi_ecm);
if (!IS_ERR(fi_obex2))
usb_put_function_instance(fi_obex2);
diff --git a/kernel/drivers/usb/gadget/legacy/printer.c b/kernel/drivers/usb/gadget/legacy/printer.c
index 1ce7df106..a22d30a4d 100644
--- a/kernel/drivers/usb/gadget/legacy/printer.c
+++ b/kernel/drivers/usb/gadget/legacy/printer.c
@@ -19,8 +19,6 @@
#include <linux/usb/gadget.h>
#include <linux/usb/g_printer.h>
-#include "gadget_chips.h"
-
USB_GADGET_COMPOSITE_OPTIONS();
#define DRIVER_DESC "Printer Gadget"
@@ -82,16 +80,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
- .bmAttributes = USB_OTG_SRP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/*-------------------------------------------------------------------------*/
@@ -136,7 +125,6 @@ static int printer_do_config(struct usb_configuration *c)
usb_gadget_set_selfpowered(gadget);
if (gadget_is_otg(gadget)) {
- otg_descriptor.bmAttributes |= USB_OTG_HNP;
printer_cfg_driver.descriptors = otg_desc;
printer_cfg_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
@@ -174,21 +162,39 @@ static int printer_bind(struct usb_composite_dev *cdev)
opts->q_len = QLEN;
ret = usb_string_ids_tab(cdev, strings);
- if (ret < 0) {
- usb_put_function_instance(fi_printer);
- return ret;
- }
+ if (ret < 0)
+ goto fail_put_func_inst;
+
device_desc.iManufacturer = strings[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings[USB_GADGET_PRODUCT_IDX].id;
device_desc.iSerialNumber = strings[USB_GADGET_SERIAL_IDX].id;
- ret = usb_add_config(cdev, &printer_cfg_driver, printer_do_config);
- if (ret) {
- usb_put_function_instance(fi_printer);
- return ret;
+ if (gadget_is_otg(cdev->gadget) && !otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc) {
+ ret = -ENOMEM;
+ goto fail_put_func_inst;
+ }
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
}
+
+ ret = usb_add_config(cdev, &printer_cfg_driver, printer_do_config);
+ if (ret)
+ goto fail_free_otg_desc;
+
usb_composite_overwrite_options(cdev, &coverwrite);
return ret;
+
+fail_free_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+fail_put_func_inst:
+ usb_put_function_instance(fi_printer);
+ return ret;
}
static int printer_unbind(struct usb_composite_dev *cdev)
@@ -196,6 +202,9 @@ static int printer_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_printer);
usb_put_function_instance(fi_printer);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/serial.c b/kernel/drivers/usb/gadget/legacy/serial.c
index 8b7528f9b..c5d42e034 100644
--- a/kernel/drivers/usb/gadget/legacy/serial.c
+++ b/kernel/drivers/usb/gadget/legacy/serial.c
@@ -17,7 +17,6 @@
#include <linux/tty_flip.h>
#include "u_serial.h"
-#include "gadget_chips.h"
/* Defines */
@@ -79,20 +78,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 1,
};
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
+static const struct usb_descriptor_header *otg_desc[2];
/*-------------------------------------------------------------------------*/
@@ -191,6 +177,18 @@ static int gs_bind(struct usb_composite_dev *cdev)
serial_config_driver.iConfiguration = status;
if (gadget_is_otg(cdev->gadget)) {
+ if (!otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc) {
+ status = -ENOMEM;
+ goto fail;
+ }
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
serial_config_driver.descriptors = otg_desc;
serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
@@ -208,13 +206,15 @@ static int gs_bind(struct usb_composite_dev *cdev)
"gser");
}
if (status < 0)
- goto fail;
+ goto fail1;
usb_composite_overwrite_options(cdev, &coverwrite);
INFO(cdev, "%s\n", GS_VERSION_NAME);
return 0;
-
+fail1:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
fail:
return status;
}
@@ -227,6 +227,10 @@ static int gs_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_serial[i]);
usb_put_function_instance(fi_serial[i]);
}
+
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index f9b4882fc..22e56158d 100644
--- a/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -16,21 +16,15 @@
#include <linux/usb/composite.h>
#include <linux/usb/gadget.h>
#include <linux/usb/storage.h>
-#include <scsi/scsi.h>
#include <scsi/scsi_tcq.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
-#include <target/target_core_fabric_configfs.h>
-#include <target/target_core_configfs.h>
-#include <target/configfs_macros.h>
#include <asm/unaligned.h>
#include "tcm_usb_gadget.h"
USB_GADGET_COMPOSITE_OPTIONS();
-static const struct target_core_fabric_ops usbg_ops;
-
static inline struct f_uas *to_f_uas(struct usb_function *f)
{
return container_of(f, struct f_uas, function);
@@ -1112,6 +1106,7 @@ static int usbg_submit_command(struct f_uas *fu,
memcpy(cmd->cmd_buf, cmd_iu->cdb, cmd_len);
cmd->tag = be16_to_cpup(&cmd_iu->tag);
+ cmd->se_cmd.tag = cmd->tag;
if (fu->flags & USBG_USE_STREAMS) {
if (cmd->tag > UASP_SS_EP_COMP_NUM_STREAMS)
goto err;
@@ -1245,6 +1240,7 @@ static int bot_submit_command(struct f_uas *fu,
cmd->unpacked_lun = cbw->Lun;
cmd->is_read = cbw->Flags & US_BULK_FLAG_IN ? 1 : 0;
cmd->data_len = le32_to_cpu(cbw->DataTransferLength);
+ cmd->se_cmd.tag = le32_to_cpu(cmd->bot_tag);
INIT_WORK(&cmd->work, bot_cmd_work);
ret = queue_work(tpg->workqueue, &cmd->work);
@@ -1274,23 +1270,6 @@ static char *usbg_get_fabric_name(void)
return "usb_gadget";
}
-static u8 usbg_get_fabric_proto_ident(struct se_portal_group *se_tpg)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- u8 proto_id;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- proto_id = sas_get_fabric_proto_ident(se_tpg);
- break;
- }
-
- return proto_id;
-}
-
static char *usbg_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct usbg_tpg *tpg = container_of(se_tpg,
@@ -1307,97 +1286,6 @@ static u16 usbg_get_tag(struct se_portal_group *se_tpg)
return tpg->tport_tpgt;
}
-static u32 usbg_get_default_depth(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
-static u32 usbg_get_pr_transport_id(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code,
- unsigned char *buf)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
- format_code, buf);
- break;
- }
-
- return ret;
-}
-
-static u32 usbg_get_pr_transport_id_len(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl,
- struct t10_pr_registration *pr_reg,
- int *format_code)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- int ret = 0;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
- format_code);
- break;
- }
-
- return ret;
-}
-
-static char *usbg_parse_pr_out_transport_id(
- struct se_portal_group *se_tpg,
- const char *buf,
- u32 *out_tid_len,
- char **port_nexus_ptr)
-{
- struct usbg_tpg *tpg = container_of(se_tpg,
- struct usbg_tpg, se_tpg);
- struct usbg_tport *tport = tpg->tport;
- char *tid = NULL;
-
- switch (tport->tport_proto_id) {
- case SCSI_PROTOCOL_SAS:
- default:
- tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
- port_nexus_ptr);
- }
-
- return tid;
-}
-
-static struct se_node_acl *usbg_alloc_fabric_acl(struct se_portal_group *se_tpg)
-{
- struct usbg_nacl *nacl;
-
- nacl = kzalloc(sizeof(struct usbg_nacl), GFP_KERNEL);
- if (!nacl)
- return NULL;
-
- return &nacl->se_node_acl;
-}
-
-static void usbg_release_fabric_acl(
- struct se_portal_group *se_tpg,
- struct se_node_acl *se_nacl)
-{
- struct usbg_nacl *nacl = container_of(se_nacl,
- struct usbg_nacl, se_node_acl);
- kfree(nacl);
-}
-
static u32 usbg_tpg_get_inst_index(struct se_portal_group *se_tpg)
{
return 1;
@@ -1448,18 +1336,6 @@ static void usbg_set_default_node_attrs(struct se_node_acl *nacl)
return;
}
-static u32 usbg_get_task_tag(struct se_cmd *se_cmd)
-{
- struct usbg_cmd *cmd = container_of(se_cmd, struct usbg_cmd,
- se_cmd);
- struct f_uas *fu = cmd->fu;
-
- if (fu->flags & USBG_IS_BOT)
- return le32_to_cpu(cmd->bot_tag);
- else
- return cmd->tag;
-}
-
static int usbg_get_cmd_state(struct se_cmd *se_cmd)
{
return 0;
@@ -1489,50 +1365,11 @@ static const char *usbg_check_wwn(const char *name)
return n;
}
-static struct se_node_acl *usbg_make_nodeacl(
- struct se_portal_group *se_tpg,
- struct config_group *group,
- const char *name)
-{
- struct se_node_acl *se_nacl, *se_nacl_new;
- struct usbg_nacl *nacl;
- u64 wwpn = 0;
- u32 nexus_depth;
- const char *wnn_name;
-
- wnn_name = usbg_check_wwn(name);
- if (!wnn_name)
- return ERR_PTR(-EINVAL);
- se_nacl_new = usbg_alloc_fabric_acl(se_tpg);
- if (!(se_nacl_new))
- return ERR_PTR(-ENOMEM);
-
- nexus_depth = 1;
- /*
- * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
- * when converting a NodeACL from demo mode -> explict
- */
- se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,
- name, nexus_depth);
- if (IS_ERR(se_nacl)) {
- usbg_release_fabric_acl(se_tpg, se_nacl_new);
- return se_nacl;
- }
- /*
- * Locate our struct usbg_nacl and set the FC Nport WWPN
- */
- nacl = container_of(se_nacl, struct usbg_nacl, se_node_acl);
- nacl->iport_wwpn = wwpn;
- snprintf(nacl->iport_name, sizeof(nacl->iport_name), "%s", name);
- return se_nacl;
-}
-
-static void usbg_drop_nodeacl(struct se_node_acl *se_acl)
+static int usbg_init_nodeacl(struct se_node_acl *se_nacl, const char *name)
{
- struct usbg_nacl *nacl = container_of(se_acl,
- struct usbg_nacl, se_node_acl);
- core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);
- kfree(nacl);
+ if (!usbg_check_wwn(name))
+ return -EINVAL;
+ return 0;
}
struct usbg_tpg *the_only_tpg_I_currently_have;
@@ -1572,8 +1409,11 @@ static struct se_portal_group *usbg_make_tpg(
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
- ret = core_tpg_register(&usbg_ops, wwn, &tpg->se_tpg, tpg,
- TRANSPORT_TPG_TYPE_NORMAL);
+ /*
+ * SPC doesn't assign a protocol identifier for USB-SCSI, so we
+ * pretend to be SAS..
+ */
+ ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_SAS);
if (ret < 0) {
destroy_workqueue(tpg->workqueue);
kfree(tpg);
@@ -1625,23 +1465,21 @@ static void usbg_drop_tport(struct se_wwn *wwn)
/*
* If somebody feels like dropping the version property, go ahead.
*/
-static ssize_t usbg_wwn_show_attr_version(
- struct target_fabric_configfs *tf,
- char *page)
+static ssize_t usbg_wwn_version_show(struct config_item *item, char *page)
{
return sprintf(page, "usb-gadget fabric module\n");
}
-TF_WWN_ATTR_RO(usbg, version);
+
+CONFIGFS_ATTR_RO(usbg_wwn_, version);
static struct configfs_attribute *usbg_wwn_attrs[] = {
- &usbg_wwn_version.attr,
+ &usbg_wwn_attr_version,
NULL,
};
-static ssize_t tcm_usbg_tpg_show_enable(
- struct se_portal_group *se_tpg,
- char *page)
+static ssize_t tcm_usbg_tpg_enable_show(struct config_item *item, char *page)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg);
return snprintf(page, PAGE_SIZE, "%u\n", tpg->gadget_connect);
@@ -1650,11 +1488,10 @@ static ssize_t tcm_usbg_tpg_show_enable(
static int usbg_attach(struct usbg_tpg *);
static void usbg_detach(struct usbg_tpg *);
-static ssize_t tcm_usbg_tpg_store_enable(
- struct se_portal_group *se_tpg,
- const char *page,
- size_t count)
+static ssize_t tcm_usbg_tpg_enable_store(struct config_item *item,
+ const char *page, size_t count)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg);
unsigned long op;
ssize_t ret;
@@ -1681,12 +1518,10 @@ static ssize_t tcm_usbg_tpg_store_enable(
out:
return count;
}
-TF_TPG_BASE_ATTR(tcm_usbg, enable, S_IRUGO | S_IWUSR);
-static ssize_t tcm_usbg_tpg_show_nexus(
- struct se_portal_group *se_tpg,
- char *page)
+static ssize_t tcm_usbg_tpg_nexus_show(struct config_item *item, char *page)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg);
struct tcm_usbg_nexus *tv_nexus;
ssize_t ret;
@@ -1794,11 +1629,10 @@ out:
return ret;
}
-static ssize_t tcm_usbg_tpg_store_nexus(
- struct se_portal_group *se_tpg,
- const char *page,
- size_t count)
+static ssize_t tcm_usbg_tpg_nexus_store(struct config_item *item,
+ const char *page, size_t count)
{
+ struct se_portal_group *se_tpg = to_tpg(item);
struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg);
unsigned char i_port[USBG_NAMELEN], *ptr;
int ret;
@@ -1828,11 +1662,13 @@ static ssize_t tcm_usbg_tpg_store_nexus(
return ret;
return count;
}
-TF_TPG_BASE_ATTR(tcm_usbg, nexus, S_IRUGO | S_IWUSR);
+
+CONFIGFS_ATTR(tcm_usbg_tpg_, enable);
+CONFIGFS_ATTR(tcm_usbg_tpg_, nexus);
static struct configfs_attribute *usbg_base_attrs[] = {
- &tcm_usbg_tpg_enable.attr,
- &tcm_usbg_tpg_nexus.attr,
+ &tcm_usbg_tpg_attr_enable,
+ &tcm_usbg_tpg_attr_nexus,
NULL,
};
@@ -1867,19 +1703,12 @@ static const struct target_core_fabric_ops usbg_ops = {
.module = THIS_MODULE,
.name = "usb_gadget",
.get_fabric_name = usbg_get_fabric_name,
- .get_fabric_proto_ident = usbg_get_fabric_proto_ident,
.tpg_get_wwn = usbg_get_fabric_wwn,
.tpg_get_tag = usbg_get_tag,
- .tpg_get_default_depth = usbg_get_default_depth,
- .tpg_get_pr_transport_id = usbg_get_pr_transport_id,
- .tpg_get_pr_transport_id_len = usbg_get_pr_transport_id_len,
- .tpg_parse_pr_out_transport_id = usbg_parse_pr_out_transport_id,
.tpg_check_demo_mode = usbg_check_true,
.tpg_check_demo_mode_cache = usbg_check_false,
.tpg_check_demo_mode_write_protect = usbg_check_false,
.tpg_check_prod_mode_write_protect = usbg_check_false,
- .tpg_alloc_fabric_acl = usbg_alloc_fabric_acl,
- .tpg_release_fabric_acl = usbg_release_fabric_acl,
.tpg_get_inst_index = usbg_tpg_get_inst_index,
.release_cmd = usbg_release_cmd,
.shutdown_session = usbg_shutdown_session,
@@ -1889,7 +1718,6 @@ static const struct target_core_fabric_ops usbg_ops = {
.write_pending = usbg_send_write_request,
.write_pending_status = usbg_write_pending_status,
.set_default_node_attributes = usbg_set_default_node_attrs,
- .get_task_tag = usbg_get_task_tag,
.get_cmd_state = usbg_get_cmd_state,
.queue_data_in = usbg_send_read_response,
.queue_status = usbg_send_status_response,
@@ -1903,10 +1731,7 @@ static const struct target_core_fabric_ops usbg_ops = {
.fabric_drop_tpg = usbg_drop_tpg,
.fabric_post_link = usbg_port_link,
.fabric_pre_unlink = usbg_port_unlink,
- .fabric_make_np = NULL,
- .fabric_drop_np = NULL,
- .fabric_make_nodeacl = usbg_make_nodeacl,
- .fabric_drop_nodeacl = usbg_drop_nodeacl,
+ .fabric_init_nodeacl = usbg_init_nodeacl,
.tfc_wwn_attrs = usbg_wwn_attrs,
.tfc_tpg_base_attrs = usbg_base_attrs,
@@ -2187,14 +2012,6 @@ static struct usb_configuration usbg_config_driver = {
.bmAttributes = USB_CONFIG_ATT_SELFPOWER,
};
-static void give_back_ep(struct usb_ep **pep)
-{
- struct usb_ep *ep = *pep;
- if (!ep)
- return;
- ep->driver_data = NULL;
-}
-
static int usbg_bind(struct usb_configuration *c, struct usb_function *f)
{
struct f_uas *fu = to_f_uas(f);
@@ -2214,29 +2031,24 @@ static int usbg_bind(struct usb_configuration *c, struct usb_function *f)
&uasp_bi_ep_comp_desc);
if (!ep)
goto ep_fail;
-
- ep->driver_data = fu;
fu->ep_in = ep;
ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_bo_desc,
&uasp_bo_ep_comp_desc);
if (!ep)
goto ep_fail;
- ep->driver_data = fu;
fu->ep_out = ep;
ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_status_desc,
&uasp_status_in_ep_comp_desc);
if (!ep)
goto ep_fail;
- ep->driver_data = fu;
fu->ep_status = ep;
ep = usb_ep_autoconfig_ss(gadget, &uasp_ss_cmd_desc,
&uasp_cmd_comp_desc);
if (!ep)
goto ep_fail;
- ep->driver_data = fu;
fu->ep_cmd = ep;
/* Assume endpoint addresses are the same for both speeds */
@@ -2260,11 +2072,6 @@ static int usbg_bind(struct usb_configuration *c, struct usb_function *f)
return 0;
ep_fail:
pr_err("Can't claim all required eps\n");
-
- give_back_ep(&fu->ep_in);
- give_back_ep(&fu->ep_out);
- give_back_ep(&fu->ep_status);
- give_back_ep(&fu->ep_cmd);
return -ENOTSUPP;
}
diff --git a/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.h b/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.h
index 828921992..0b749e1aa 100644
--- a/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.h
+++ b/kernel/drivers/usb/gadget/legacy/tcm_usb_gadget.h
@@ -6,7 +6,6 @@
#include <linux/usb/composite.h>
#include <linux/usb/uas.h>
#include <linux/usb/storage.h>
-#include <scsi/scsi.h>
#include <target/target_core_base.h>
#include <target/target_core_fabric.h>
@@ -25,15 +24,6 @@ enum {
#define USB_G_ALT_INT_BBB 0
#define USB_G_ALT_INT_UAS 1
-struct usbg_nacl {
- /* Binary World Wide unique Port Name for SAS Initiator port */
- u64 iport_wwpn;
- /* ASCII formatted WWPN for Sas Initiator port */
- char iport_name[USBG_NAMELEN];
- /* Returned by usbg_make_nodeacl() */
- struct se_node_acl se_node_acl;
-};
-
struct tcm_usbg_nexus {
struct se_session *tvn_se_sess;
};
@@ -53,8 +43,6 @@ struct usbg_tpg {
};
struct usbg_tport {
- /* SCSI protocol the tport is providing */
- u8 tport_proto_id;
/* Binary World Wide unique Port Name for SAS Target port */
u64 tport_wwpn;
/* ASCII formatted WWPN for SAS Target port */
diff --git a/kernel/drivers/usb/gadget/legacy/zero.c b/kernel/drivers/usb/gadget/legacy/zero.c
index c986e8add..37a410056 100644
--- a/kernel/drivers/usb/gadget/legacy/zero.c
+++ b/kernel/drivers/usb/gadget/legacy/zero.c
@@ -121,24 +121,7 @@ static struct usb_device_descriptor device_desc = {
.bNumConfigurations = 2,
};
-#ifdef CONFIG_USB_OTG
-static struct usb_otg_descriptor otg_descriptor = {
- .bLength = sizeof otg_descriptor,
- .bDescriptorType = USB_DT_OTG,
-
- /* REVISIT SRP-only hardware is possible, although
- * it would not be called "OTG" ...
- */
- .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
-};
-
-static const struct usb_descriptor_header *otg_desc[] = {
- (struct usb_descriptor_header *) &otg_descriptor,
- NULL,
-};
-#else
-#define otg_desc NULL
-#endif
+static const struct usb_descriptor_header *otg_desc[2];
/* string IDs are assigned dynamically */
/* default serial number takes at least two packets */
@@ -341,6 +324,18 @@ static int zero_bind(struct usb_composite_dev *cdev)
/* support OTG systems */
if (gadget_is_otg(cdev->gadget)) {
+ if (!otg_desc[0]) {
+ struct usb_descriptor_header *usb_desc;
+
+ usb_desc = usb_otg_descriptor_alloc(cdev->gadget);
+ if (!usb_desc) {
+ status = -ENOMEM;
+ goto err_conf_flb;
+ }
+ usb_otg_descriptor_init(cdev->gadget, usb_desc);
+ otg_desc[0] = usb_desc;
+ otg_desc[1] = NULL;
+ }
sourcesink_driver.descriptors = otg_desc;
sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
loopback_driver.descriptors = otg_desc;
@@ -359,12 +354,12 @@ static int zero_bind(struct usb_composite_dev *cdev)
}
status = usb_add_function(&sourcesink_driver, func_ss);
if (status)
- goto err_conf_flb;
+ goto err_free_otg_desc;
usb_ep_autoconfig_reset(cdev->gadget);
status = usb_add_function(&loopback_driver, func_lb);
if (status)
- goto err_conf_flb;
+ goto err_free_otg_desc;
usb_ep_autoconfig_reset(cdev->gadget);
usb_composite_overwrite_options(cdev, &coverwrite);
@@ -373,6 +368,9 @@ static int zero_bind(struct usb_composite_dev *cdev)
return 0;
+err_free_otg_desc:
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
err_conf_flb:
usb_put_function(func_lb);
func_lb = NULL;
@@ -397,6 +395,9 @@ static int zero_unbind(struct usb_composite_dev *cdev)
if (!IS_ERR_OR_NULL(func_lb))
usb_put_function(func_lb);
usb_put_function_instance(func_inst_lb);
+ kfree(otg_desc[0]);
+ otg_desc[0] = NULL;
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/udc/Kconfig b/kernel/drivers/usb/gadget/udc/Kconfig
index 9a3a6b003..cdbff54e0 100644
--- a/kernel/drivers/usb/gadget/udc/Kconfig
+++ b/kernel/drivers/usb/gadget/udc/Kconfig
@@ -55,7 +55,7 @@ config USB_LPC32XX
config USB_ATMEL_USBA
tristate "Atmel USBA"
- depends on AVR32 || ARCH_AT91
+ depends on ((AVR32 && !OF) || ARCH_AT91)
help
USBA is the integrated high-speed USB Device controller on
the AT32AP700x, some AT91SAM9 and AT91CAP9 processors from Atmel.
diff --git a/kernel/drivers/usb/gadget/udc/amd5536udc.c b/kernel/drivers/usb/gadget/udc/amd5536udc.c
index de7e5e2cc..cd8764150 100644
--- a/kernel/drivers/usb/gadget/udc/amd5536udc.c
+++ b/kernel/drivers/usb/gadget/udc/amd5536udc.c
@@ -65,18 +65,10 @@
static void udc_tasklet_disconnect(unsigned long);
static void empty_req_queue(struct udc_ep *);
-static int udc_probe(struct udc *dev);
-static void udc_basic_init(struct udc *dev);
static void udc_setup_endpoints(struct udc *dev);
static void udc_soft_reset(struct udc *dev);
static struct udc_request *udc_alloc_bna_dummy(struct udc_ep *ep);
static void udc_free_request(struct usb_ep *usbep, struct usb_request *usbreq);
-static int udc_free_dma_chain(struct udc *dev, struct udc_request *req);
-static int udc_create_dma_chain(struct udc_ep *ep, struct udc_request *req,
- unsigned long buf_len, gfp_t gfp_flags);
-static int udc_remote_wakeup(struct udc *dev);
-static int udc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id);
-static void udc_pci_remove(struct pci_dev *pdev);
/* description */
static const char mod_desc[] = UDC_MOD_DESCRIPTION;
@@ -138,15 +130,82 @@ static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
/* endpoint names used for print */
static const char ep0_string[] = "ep0in";
-static const char *const ep_string[] = {
- ep0_string,
- "ep1in-int", "ep2in-bulk", "ep3in-bulk", "ep4in-bulk", "ep5in-bulk",
- "ep6in-bulk", "ep7in-bulk", "ep8in-bulk", "ep9in-bulk", "ep10in-bulk",
- "ep11in-bulk", "ep12in-bulk", "ep13in-bulk", "ep14in-bulk",
- "ep15in-bulk", "ep0out", "ep1out-bulk", "ep2out-bulk", "ep3out-bulk",
- "ep4out-bulk", "ep5out-bulk", "ep6out-bulk", "ep7out-bulk",
- "ep8out-bulk", "ep9out-bulk", "ep10out-bulk", "ep11out-bulk",
- "ep12out-bulk", "ep13out-bulk", "ep14out-bulk", "ep15out-bulk"
+static const struct {
+ const char *name;
+ const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+ { \
+ .name = _name, \
+ .caps = _caps, \
+ }
+
+ EP_INFO(ep0_string,
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep1in-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep2in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep3in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep4in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep5in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep6in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep7in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep8in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep9in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep10in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep11in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep12in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep13in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep14in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep15in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep0out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep1out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep2out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep3out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep4out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep5out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep6out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep7out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep8out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep9out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep10out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep11out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep12out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep13out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep14out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep15out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
};
/* DMA usage flag */
@@ -548,6 +607,30 @@ udc_alloc_request(struct usb_ep *usbep, gfp_t gfp)
return &req->req;
}
+/* frees pci pool descriptors of a DMA chain */
+static int udc_free_dma_chain(struct udc *dev, struct udc_request *req)
+{
+ int ret_val = 0;
+ struct udc_data_dma *td;
+ struct udc_data_dma *td_last = NULL;
+ unsigned int i;
+
+ DBG(dev, "free chain req = %p\n", req);
+
+ /* do not free first desc., will be done by free for request */
+ td_last = req->td_data;
+ td = phys_to_virt(td_last->next);
+
+ for (i = 1; i < req->chain_len; i++) {
+ pci_pool_free(dev->data_requests, td,
+ (dma_addr_t)td_last->next);
+ td_last = td;
+ td = phys_to_virt(td_last->next);
+ }
+
+ return ret_val;
+}
+
/* Frees request packet, called by gadget driver */
static void
udc_free_request(struct usb_ep *usbep, struct usb_request *usbreq)
@@ -722,6 +805,123 @@ udc_rxfifo_read(struct udc_ep *ep, struct udc_request *req)
return finished;
}
+/* Creates or re-inits a DMA chain */
+static int udc_create_dma_chain(
+ struct udc_ep *ep,
+ struct udc_request *req,
+ unsigned long buf_len, gfp_t gfp_flags
+)
+{
+ unsigned long bytes = req->req.length;
+ unsigned int i;
+ dma_addr_t dma_addr;
+ struct udc_data_dma *td = NULL;
+ struct udc_data_dma *last = NULL;
+ unsigned long txbytes;
+ unsigned create_new_chain = 0;
+ unsigned len;
+
+ VDBG(ep->dev, "udc_create_dma_chain: bytes=%ld buf_len=%ld\n",
+ bytes, buf_len);
+ dma_addr = DMA_DONT_USE;
+
+ /* unset L bit in first desc for OUT */
+ if (!ep->in)
+ req->td_data->status &= AMD_CLEAR_BIT(UDC_DMA_IN_STS_L);
+
+ /* alloc only new desc's if not already available */
+ len = req->req.length / ep->ep.maxpacket;
+ if (req->req.length % ep->ep.maxpacket)
+ len++;
+
+ if (len > req->chain_len) {
+ /* shorter chain already allocated before */
+ if (req->chain_len > 1)
+ udc_free_dma_chain(ep->dev, req);
+ req->chain_len = len;
+ create_new_chain = 1;
+ }
+
+ td = req->td_data;
+ /* gen. required number of descriptors and buffers */
+ for (i = buf_len; i < bytes; i += buf_len) {
+ /* create or determine next desc. */
+ if (create_new_chain) {
+ td = pci_pool_alloc(ep->dev->data_requests,
+ gfp_flags, &dma_addr);
+ if (!td)
+ return -ENOMEM;
+
+ td->status = 0;
+ } else if (i == buf_len) {
+ /* first td */
+ td = (struct udc_data_dma *)phys_to_virt(
+ req->td_data->next);
+ td->status = 0;
+ } else {
+ td = (struct udc_data_dma *)phys_to_virt(last->next);
+ td->status = 0;
+ }
+
+ if (td)
+ td->bufptr = req->req.dma + i; /* assign buffer */
+ else
+ break;
+
+ /* short packet ? */
+ if ((bytes - i) >= buf_len) {
+ txbytes = buf_len;
+ } else {
+ /* short packet */
+ txbytes = bytes - i;
+ }
+
+ /* link td and assign tx bytes */
+ if (i == buf_len) {
+ if (create_new_chain)
+ req->td_data->next = dma_addr;
+ /*
+ * else
+ * req->td_data->next = virt_to_phys(td);
+ */
+ /* write tx bytes */
+ if (ep->in) {
+ /* first desc */
+ req->td_data->status =
+ AMD_ADDBITS(req->td_data->status,
+ ep->ep.maxpacket,
+ UDC_DMA_IN_STS_TXBYTES);
+ /* second desc */
+ td->status = AMD_ADDBITS(td->status,
+ txbytes,
+ UDC_DMA_IN_STS_TXBYTES);
+ }
+ } else {
+ if (create_new_chain)
+ last->next = dma_addr;
+ /*
+ * else
+ * last->next = virt_to_phys(td);
+ */
+ if (ep->in) {
+ /* write tx bytes */
+ td->status = AMD_ADDBITS(td->status,
+ txbytes,
+ UDC_DMA_IN_STS_TXBYTES);
+ }
+ }
+ last = td;
+ }
+ /* set last bit */
+ if (td) {
+ td->status |= AMD_BIT(UDC_DMA_IN_STS_L);
+ /* last desc. points to itself */
+ req->td_data_last = td;
+ }
+
+ return 0;
+}
+
/* create/re-init a DMA descriptor or a DMA descriptor chain */
static int prep_dma(struct udc_ep *ep, struct udc_request *req, gfp_t gfp)
{
@@ -846,32 +1046,6 @@ __acquires(ep->dev->lock)
ep->halted = halted;
}
-/* frees pci pool descriptors of a DMA chain */
-static int udc_free_dma_chain(struct udc *dev, struct udc_request *req)
-{
-
- int ret_val = 0;
- struct udc_data_dma *td;
- struct udc_data_dma *td_last = NULL;
- unsigned int i;
-
- DBG(dev, "free chain req = %p\n", req);
-
- /* do not free first desc., will be done by free for request */
- td_last = req->td_data;
- td = phys_to_virt(td_last->next);
-
- for (i = 1; i < req->chain_len; i++) {
-
- pci_pool_free(dev->data_requests, td,
- (dma_addr_t) td_last->next);
- td_last = td;
- td = phys_to_virt(td_last->next);
- }
-
- return ret_val;
-}
-
/* Iterates to the end of a DMA chain and returns last descriptor */
static struct udc_data_dma *udc_get_last_dma_desc(struct udc_request *req)
{
@@ -908,125 +1082,6 @@ static u32 udc_get_ppbdu_rxbytes(struct udc_request *req)
}
-/* Creates or re-inits a DMA chain */
-static int udc_create_dma_chain(
- struct udc_ep *ep,
- struct udc_request *req,
- unsigned long buf_len, gfp_t gfp_flags
-)
-{
- unsigned long bytes = req->req.length;
- unsigned int i;
- dma_addr_t dma_addr;
- struct udc_data_dma *td = NULL;
- struct udc_data_dma *last = NULL;
- unsigned long txbytes;
- unsigned create_new_chain = 0;
- unsigned len;
-
- VDBG(ep->dev, "udc_create_dma_chain: bytes=%ld buf_len=%ld\n",
- bytes, buf_len);
- dma_addr = DMA_DONT_USE;
-
- /* unset L bit in first desc for OUT */
- if (!ep->in)
- req->td_data->status &= AMD_CLEAR_BIT(UDC_DMA_IN_STS_L);
-
- /* alloc only new desc's if not already available */
- len = req->req.length / ep->ep.maxpacket;
- if (req->req.length % ep->ep.maxpacket)
- len++;
-
- if (len > req->chain_len) {
- /* shorter chain already allocated before */
- if (req->chain_len > 1)
- udc_free_dma_chain(ep->dev, req);
- req->chain_len = len;
- create_new_chain = 1;
- }
-
- td = req->td_data;
- /* gen. required number of descriptors and buffers */
- for (i = buf_len; i < bytes; i += buf_len) {
- /* create or determine next desc. */
- if (create_new_chain) {
-
- td = pci_pool_alloc(ep->dev->data_requests,
- gfp_flags, &dma_addr);
- if (!td)
- return -ENOMEM;
-
- td->status = 0;
- } else if (i == buf_len) {
- /* first td */
- td = (struct udc_data_dma *) phys_to_virt(
- req->td_data->next);
- td->status = 0;
- } else {
- td = (struct udc_data_dma *) phys_to_virt(last->next);
- td->status = 0;
- }
-
-
- if (td)
- td->bufptr = req->req.dma + i; /* assign buffer */
- else
- break;
-
- /* short packet ? */
- if ((bytes - i) >= buf_len) {
- txbytes = buf_len;
- } else {
- /* short packet */
- txbytes = bytes - i;
- }
-
- /* link td and assign tx bytes */
- if (i == buf_len) {
- if (create_new_chain)
- req->td_data->next = dma_addr;
- /*
- else
- req->td_data->next = virt_to_phys(td);
- */
- /* write tx bytes */
- if (ep->in) {
- /* first desc */
- req->td_data->status =
- AMD_ADDBITS(req->td_data->status,
- ep->ep.maxpacket,
- UDC_DMA_IN_STS_TXBYTES);
- /* second desc */
- td->status = AMD_ADDBITS(td->status,
- txbytes,
- UDC_DMA_IN_STS_TXBYTES);
- }
- } else {
- if (create_new_chain)
- last->next = dma_addr;
- /*
- else
- last->next = virt_to_phys(td);
- */
- if (ep->in) {
- /* write tx bytes */
- td->status = AMD_ADDBITS(td->status,
- txbytes,
- UDC_DMA_IN_STS_TXBYTES);
- }
- }
- last = td;
- }
- /* set last bit */
- if (td) {
- td->status |= AMD_BIT(UDC_DMA_IN_STS_L);
- /* last desc. points to itself */
- req->td_data_last = td;
- }
-
- return 0;
-}
-
/* Enabling RX DMA */
static void udc_set_rde(struct udc *dev)
{
@@ -1386,6 +1441,26 @@ static int udc_get_frame(struct usb_gadget *gadget)
return -EOPNOTSUPP;
}
+/* Initiates a remote wakeup */
+static int udc_remote_wakeup(struct udc *dev)
+{
+ unsigned long flags;
+ u32 tmp;
+
+ DBG(dev, "UDC initiates remote wakeup\n");
+
+ spin_lock_irqsave(&dev->lock, flags);
+
+ tmp = readl(&dev->regs->ctl);
+ tmp |= AMD_BIT(UDC_DEVCTL_RES);
+ writel(tmp, &dev->regs->ctl);
+ tmp &= AMD_CLEAR_BIT(UDC_DEVCTL_RES);
+ writel(tmp, &dev->regs->ctl);
+
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return 0;
+}
+
/* Remote wakeup gadget interface */
static int udc_wakeup(struct usb_gadget *gadget)
{
@@ -1431,33 +1506,6 @@ static void make_ep_lists(struct udc *dev)
dev->ep[UDC_EPOUT_IX].fifo_depth = UDC_RXFIFO_SIZE;
}
-/* init registers at driver load time */
-static int startup_registers(struct udc *dev)
-{
- u32 tmp;
-
- /* init controller by soft reset */
- udc_soft_reset(dev);
-
- /* mask not needed interrupts */
- udc_mask_unused_interrupts(dev);
-
- /* put into initial config */
- udc_basic_init(dev);
- /* link up all endpoints */
- udc_setup_endpoints(dev);
-
- /* program speed */
- tmp = readl(&dev->regs->cfg);
- if (use_fullspeed)
- tmp = AMD_ADDBITS(tmp, UDC_DEVCFG_SPD_FS, UDC_DEVCFG_SPD);
- else
- tmp = AMD_ADDBITS(tmp, UDC_DEVCFG_SPD_HS, UDC_DEVCFG_SPD);
- writel(tmp, &dev->regs->cfg);
-
- return 0;
-}
-
/* Inits UDC context */
static void udc_basic_init(struct udc *dev)
{
@@ -1496,6 +1544,33 @@ static void udc_basic_init(struct udc *dev)
dev->data_ep_queued = 0;
}
+/* init registers at driver load time */
+static int startup_registers(struct udc *dev)
+{
+ u32 tmp;
+
+ /* init controller by soft reset */
+ udc_soft_reset(dev);
+
+ /* mask not needed interrupts */
+ udc_mask_unused_interrupts(dev);
+
+ /* put into initial config */
+ udc_basic_init(dev);
+ /* link up all endpoints */
+ udc_setup_endpoints(dev);
+
+ /* program speed */
+ tmp = readl(&dev->regs->cfg);
+ if (use_fullspeed)
+ tmp = AMD_ADDBITS(tmp, UDC_DEVCFG_SPD_FS, UDC_DEVCFG_SPD);
+ else
+ tmp = AMD_ADDBITS(tmp, UDC_DEVCFG_SPD_HS, UDC_DEVCFG_SPD);
+ writel(tmp, &dev->regs->cfg);
+
+ return 0;
+}
+
/* Sets initial endpoint parameters */
static void udc_setup_endpoints(struct udc *dev)
{
@@ -1517,7 +1592,8 @@ static void udc_setup_endpoints(struct udc *dev)
for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
ep = &dev->ep[tmp];
ep->dev = dev;
- ep->ep.name = ep_string[tmp];
+ ep->ep.name = ep_info[tmp].name;
+ ep->ep.caps = ep_info[tmp].caps;
ep->num = tmp;
/* txfifo size is calculated at enable time */
ep->txfifo = dev->txfifo;
@@ -2109,7 +2185,7 @@ static irqreturn_t udc_data_out_isr(struct udc *dev, int ep_ix)
}
/* DMA */
- } else if (!ep->cancel_transfer && req != NULL) {
+ } else if (!ep->cancel_transfer && req) {
ret_val = IRQ_HANDLED;
/* check for DMA done */
@@ -3039,6 +3115,17 @@ static void udc_remove(struct udc *dev)
udc = NULL;
}
+/* free all the dma pools */
+static void free_dma_pools(struct udc *dev)
+{
+ dma_pool_free(dev->stp_requests, dev->ep[UDC_EP0OUT_IX].td,
+ dev->ep[UDC_EP0OUT_IX].td_phys);
+ dma_pool_free(dev->stp_requests, dev->ep[UDC_EP0OUT_IX].td_stp,
+ dev->ep[UDC_EP0OUT_IX].td_stp_dma);
+ dma_pool_destroy(dev->stp_requests);
+ dma_pool_destroy(dev->data_requests);
+}
+
/* Reset all pci context */
static void udc_pci_remove(struct pci_dev *pdev)
{
@@ -3048,35 +3135,19 @@ static void udc_pci_remove(struct pci_dev *pdev)
usb_del_gadget_udc(&udc->gadget);
/* gadget driver must not be registered */
- BUG_ON(dev->driver != NULL);
+ if (WARN_ON(dev->driver))
+ return;
/* dma pool cleanup */
- if (dev->data_requests)
- pci_pool_destroy(dev->data_requests);
-
- if (dev->stp_requests) {
- /* cleanup DMA desc's for ep0in */
- pci_pool_free(dev->stp_requests,
- dev->ep[UDC_EP0OUT_IX].td_stp,
- dev->ep[UDC_EP0OUT_IX].td_stp_dma);
- pci_pool_free(dev->stp_requests,
- dev->ep[UDC_EP0OUT_IX].td,
- dev->ep[UDC_EP0OUT_IX].td_phys);
-
- pci_pool_destroy(dev->stp_requests);
- }
+ free_dma_pools(dev);
/* reset controller */
writel(AMD_BIT(UDC_DEVCFG_SOFTRESET), &dev->regs->cfg);
- if (dev->irq_registered)
- free_irq(pdev->irq, dev);
- if (dev->regs)
- iounmap(dev->regs);
- if (dev->mem_region)
- release_mem_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0));
- if (dev->active)
- pci_disable_device(pdev);
+ free_irq(pdev->irq, dev);
+ iounmap(dev->virt_addr);
+ release_mem_region(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+ pci_disable_device(pdev);
udc_remove(dev);
}
@@ -3101,8 +3172,7 @@ static int init_dma_pools(struct udc *dev)
sizeof(struct udc_data_dma), 0, 0);
if (!dev->data_requests) {
DBG(dev, "can't get request data pool\n");
- retval = -ENOMEM;
- goto finished;
+ return -ENOMEM;
}
/* EP0 in dma regs = dev control regs */
@@ -3114,27 +3184,101 @@ static int init_dma_pools(struct udc *dev)
if (!dev->stp_requests) {
DBG(dev, "can't get stp request pool\n");
retval = -ENOMEM;
- goto finished;
+ goto err_create_dma_pool;
}
/* setup */
td_stp = dma_pool_alloc(dev->stp_requests, GFP_KERNEL,
&dev->ep[UDC_EP0OUT_IX].td_stp_dma);
- if (td_stp == NULL) {
+ if (!td_stp) {
retval = -ENOMEM;
- goto finished;
+ goto err_alloc_dma;
}
dev->ep[UDC_EP0OUT_IX].td_stp = td_stp;
/* data: 0 packets !? */
td_data = dma_pool_alloc(dev->stp_requests, GFP_KERNEL,
&dev->ep[UDC_EP0OUT_IX].td_phys);
- if (td_data == NULL) {
+ if (!td_data) {
retval = -ENOMEM;
- goto finished;
+ goto err_alloc_phys;
}
dev->ep[UDC_EP0OUT_IX].td = td_data;
return 0;
+err_alloc_phys:
+ dma_pool_free(dev->stp_requests, dev->ep[UDC_EP0OUT_IX].td_stp,
+ dev->ep[UDC_EP0OUT_IX].td_stp_dma);
+err_alloc_dma:
+ dma_pool_destroy(dev->stp_requests);
+ dev->stp_requests = NULL;
+err_create_dma_pool:
+ dma_pool_destroy(dev->data_requests);
+ dev->data_requests = NULL;
+ return retval;
+}
+
+/* general probe */
+static int udc_probe(struct udc *dev)
+{
+ char tmp[128];
+ u32 reg;
+ int retval;
+
+ /* mark timer as not initialized */
+ udc_timer.data = 0;
+ udc_pollstall_timer.data = 0;
+
+ /* device struct setup */
+ dev->gadget.ops = &udc_ops;
+
+ dev_set_name(&dev->gadget.dev, "gadget");
+ dev->gadget.name = name;
+ dev->gadget.max_speed = USB_SPEED_HIGH;
+
+ /* init registers, interrupts, ... */
+ startup_registers(dev);
+
+ dev_info(&dev->pdev->dev, "%s\n", mod_desc);
+
+ snprintf(tmp, sizeof(tmp), "%d", dev->irq);
+ dev_info(&dev->pdev->dev,
+ "irq %s, pci mem %08lx, chip rev %02x(Geode5536 %s)\n",
+ tmp, dev->phys_addr, dev->chiprev,
+ (dev->chiprev == UDC_HSA0_REV) ? "A0" : "B1");
+ strcpy(tmp, UDC_DRIVER_VERSION_STRING);
+ if (dev->chiprev == UDC_HSA0_REV) {
+ dev_err(&dev->pdev->dev, "chip revision is A0; too old\n");
+ retval = -ENODEV;
+ goto finished;
+ }
+ dev_info(&dev->pdev->dev,
+ "driver version: %s(for Geode5536 B1)\n", tmp);
+ udc = dev;
+
+ retval = usb_add_gadget_udc_release(&udc->pdev->dev, &dev->gadget,
+ gadget_release);
+ if (retval)
+ goto finished;
+
+ /* timer init */
+ init_timer(&udc_timer);
+ udc_timer.function = udc_timer_function;
+ udc_timer.data = 1;
+ /* timer pollstall init */
+ init_timer(&udc_pollstall_timer);
+ udc_pollstall_timer.function = udc_pollstall_timer_function;
+ udc_pollstall_timer.data = 1;
+
+ /* set SD */
+ reg = readl(&dev->regs->ctl);
+ reg |= AMD_BIT(UDC_DEVCTL_SD);
+ writel(reg, &dev->regs->ctl);
+
+ /* print dev register info */
+ print_regs(dev);
+
+ return 0;
+
finished:
return retval;
}
@@ -3158,19 +3302,14 @@ static int udc_pci_probe(
/* init */
dev = kzalloc(sizeof(struct udc), GFP_KERNEL);
- if (!dev) {
- retval = -ENOMEM;
- goto finished;
- }
+ if (!dev)
+ return -ENOMEM;
/* pci setup */
if (pci_enable_device(pdev) < 0) {
- kfree(dev);
- dev = NULL;
retval = -ENODEV;
- goto finished;
+ goto err_pcidev;
}
- dev->active = 1;
/* PCI resource allocation */
resource = pci_resource_start(pdev, 0);
@@ -3178,28 +3317,21 @@ static int udc_pci_probe(
if (!request_mem_region(resource, len, name)) {
dev_dbg(&pdev->dev, "pci device used already\n");
- kfree(dev);
- dev = NULL;
retval = -EBUSY;
- goto finished;
+ goto err_memreg;
}
- dev->mem_region = 1;
dev->virt_addr = ioremap_nocache(resource, len);
- if (dev->virt_addr == NULL) {
+ if (!dev->virt_addr) {
dev_dbg(&pdev->dev, "start address cannot be mapped\n");
- kfree(dev);
- dev = NULL;
retval = -EFAULT;
- goto finished;
+ goto err_ioremap;
}
if (!pdev->irq) {
dev_err(&pdev->dev, "irq not set\n");
- kfree(dev);
- dev = NULL;
retval = -ENODEV;
- goto finished;
+ goto err_irq;
}
spin_lock_init(&dev->lock);
@@ -3215,12 +3347,9 @@ static int udc_pci_probe(
if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) {
dev_dbg(&pdev->dev, "request_irq(%d) fail\n", pdev->irq);
- kfree(dev);
- dev = NULL;
retval = -EBUSY;
- goto finished;
+ goto err_irq;
}
- dev->irq_registered = 1;
pci_set_drvdata(pdev, dev);
@@ -3234,7 +3363,7 @@ static int udc_pci_probe(
if (use_dma) {
retval = init_dma_pools(dev);
if (retval != 0)
- goto finished;
+ goto err_dma;
}
dev->phys_addr = resource;
@@ -3242,101 +3371,28 @@ static int udc_pci_probe(
dev->pdev = pdev;
/* general probing */
- if (udc_probe(dev) == 0)
- return 0;
-
-finished:
- if (dev)
- udc_pci_remove(pdev);
- return retval;
-}
-
-/* general probe */
-static int udc_probe(struct udc *dev)
-{
- char tmp[128];
- u32 reg;
- int retval;
-
- /* mark timer as not initialized */
- udc_timer.data = 0;
- udc_pollstall_timer.data = 0;
-
- /* device struct setup */
- dev->gadget.ops = &udc_ops;
-
- dev_set_name(&dev->gadget.dev, "gadget");
- dev->gadget.name = name;
- dev->gadget.max_speed = USB_SPEED_HIGH;
-
- /* init registers, interrupts, ... */
- startup_registers(dev);
-
- dev_info(&dev->pdev->dev, "%s\n", mod_desc);
-
- snprintf(tmp, sizeof tmp, "%d", dev->irq);
- dev_info(&dev->pdev->dev,
- "irq %s, pci mem %08lx, chip rev %02x(Geode5536 %s)\n",
- tmp, dev->phys_addr, dev->chiprev,
- (dev->chiprev == UDC_HSA0_REV) ? "A0" : "B1");
- strcpy(tmp, UDC_DRIVER_VERSION_STRING);
- if (dev->chiprev == UDC_HSA0_REV) {
- dev_err(&dev->pdev->dev, "chip revision is A0; too old\n");
+ if (udc_probe(dev)) {
retval = -ENODEV;
- goto finished;
+ goto err_probe;
}
- dev_info(&dev->pdev->dev,
- "driver version: %s(for Geode5536 B1)\n", tmp);
- udc = dev;
-
- retval = usb_add_gadget_udc_release(&udc->pdev->dev, &dev->gadget,
- gadget_release);
- if (retval)
- goto finished;
-
- /* timer init */
- init_timer(&udc_timer);
- udc_timer.function = udc_timer_function;
- udc_timer.data = 1;
- /* timer pollstall init */
- init_timer(&udc_pollstall_timer);
- udc_pollstall_timer.function = udc_pollstall_timer_function;
- udc_pollstall_timer.data = 1;
-
- /* set SD */
- reg = readl(&dev->regs->ctl);
- reg |= AMD_BIT(UDC_DEVCTL_SD);
- writel(reg, &dev->regs->ctl);
-
- /* print dev register info */
- print_regs(dev);
-
return 0;
-finished:
+err_probe:
+ if (use_dma)
+ free_dma_pools(dev);
+err_dma:
+ free_irq(pdev->irq, dev);
+err_irq:
+ iounmap(dev->virt_addr);
+err_ioremap:
+ release_mem_region(resource, len);
+err_memreg:
+ pci_disable_device(pdev);
+err_pcidev:
+ kfree(dev);
return retval;
}
-/* Initiates a remote wakeup */
-static int udc_remote_wakeup(struct udc *dev)
-{
- unsigned long flags;
- u32 tmp;
-
- DBG(dev, "UDC initiates remote wakeup\n");
-
- spin_lock_irqsave(&dev->lock, flags);
-
- tmp = readl(&dev->regs->ctl);
- tmp |= AMD_BIT(UDC_DEVCTL_RES);
- writel(tmp, &dev->regs->ctl);
- tmp &= AMD_CLEAR_BIT(UDC_DEVCTL_RES);
- writel(tmp, &dev->regs->ctl);
-
- spin_unlock_irqrestore(&dev->lock, flags);
- return 0;
-}
-
/* PCI device parameters */
static const struct pci_device_id pci_id[] = {
{
diff --git a/kernel/drivers/usb/gadget/udc/amd5536udc.h b/kernel/drivers/usb/gadget/udc/amd5536udc.h
index 6744d3b83..4638d707f 100644
--- a/kernel/drivers/usb/gadget/udc/amd5536udc.h
+++ b/kernel/drivers/usb/gadget/udc/amd5536udc.h
@@ -526,14 +526,11 @@ struct udc {
struct udc_ep ep[UDC_EP_NUM];
struct usb_gadget_driver *driver;
/* operational flags */
- unsigned active : 1,
- stall_ep0in : 1,
+ unsigned stall_ep0in : 1,
waiting_zlp_ack_ep0in : 1,
set_cfg_not_acked : 1,
- irq_registered : 1,
data_ep_enabled : 1,
data_ep_queued : 1,
- mem_region : 1,
sys_suspended : 1,
connected;
diff --git a/kernel/drivers/usb/gadget/udc/at91_udc.c b/kernel/drivers/usb/gadget/udc/at91_udc.c
index fc4226462..d0d18947f 100644
--- a/kernel/drivers/usb/gadget/udc/at91_udc.c
+++ b/kernel/drivers/usb/gadget/udc/at91_udc.c
@@ -59,15 +59,34 @@
#define DRIVER_VERSION "3 May 2006"
static const char driver_name [] = "at91_udc";
-static const char * const ep_names[] = {
- "ep0",
- "ep1",
- "ep2",
- "ep3-int",
- "ep4",
- "ep5",
+
+static const struct {
+ const char *name;
+ const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+ { \
+ .name = _name, \
+ .caps = _caps, \
+ }
+
+ EP_INFO("ep0",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep1",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep2",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep3-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep4",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep5",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+
+#undef EP_INFO
};
-#define ep0name ep_names[0]
+
+#define ep0name ep_info[0].name
#define VBUS_POLL_TIMEOUT msecs_to_jiffies(1000)
@@ -825,6 +844,7 @@ static void udc_reinit(struct at91_udc *udc)
INIT_LIST_HEAD(&udc->gadget.ep_list);
INIT_LIST_HEAD(&udc->gadget.ep0->ep_list);
+ udc->gadget.quirk_stall_not_supp = 1;
for (i = 0; i < NUM_ENDPOINTS; i++) {
struct at91_ep *ep = &udc->ep[i];
@@ -1830,7 +1850,8 @@ static int at91udc_probe(struct platform_device *pdev)
for (i = 0; i < NUM_ENDPOINTS; i++) {
ep = &udc->ep[i];
- ep->ep.name = ep_names[i];
+ ep->ep.name = ep_info[i].name;
+ ep->ep.caps = ep_info[i].caps;
ep->ep.ops = &at91_ep_ops;
ep->udc = udc;
ep->int_mask = BIT(i);
diff --git a/kernel/drivers/usb/gadget/udc/at91_udc.h b/kernel/drivers/usb/gadget/udc/at91_udc.h
index 2679c8b21..0a433e6b3 100644
--- a/kernel/drivers/usb/gadget/udc/at91_udc.h
+++ b/kernel/drivers/usb/gadget/udc/at91_udc.h
@@ -112,6 +112,14 @@ struct at91_udc_caps {
void (*pullup)(struct at91_udc *udc, int is_on);
};
+struct at91_udc_data {
+ int vbus_pin; /* high == host powering us */
+ u8 vbus_active_low; /* vbus polarity */
+ u8 vbus_polled; /* Use polling, not interrupt */
+ int pullup_pin; /* active == D+ pulled up */
+ u8 pullup_active_low; /* true == pullup_pin is active low */
+};
+
/*
* driver is non-SMP, and just blocks IRQs whenever it needs
* access protection for chip registers or driver state
diff --git a/kernel/drivers/usb/gadget/udc/atmel_usba_udc.c b/kernel/drivers/usb/gadget/udc/atmel_usba_udc.c
index 351d48550..f9bba26e3 100644
--- a/kernel/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/kernel/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -17,12 +17,13 @@
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/list.h>
+#include <linux/mfd/syscon.h>
#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/atmel_usba_udc.h>
#include <linux/delay.h>
-#include <linux/platform_data/atmel.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
@@ -704,8 +705,8 @@ static int queue_dma(struct usba_udc *udc, struct usba_ep *ep,
unsigned long flags;
int ret;
- DBG(DBG_DMA, "%s: req l/%u d/%08x %c%c%c\n",
- ep->ep.name, req->req.length, req->req.dma,
+ DBG(DBG_DMA, "%s: req l/%u d/%pad %c%c%c\n",
+ ep->ep.name, req->req.length, &req->req.dma,
req->req.zero ? 'Z' : 'z',
req->req.short_not_ok ? 'S' : 's',
req->req.no_interrupt ? 'I' : 'i');
@@ -1634,7 +1635,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)
spin_lock(&udc->lock);
int_enb = usba_int_enb_get(udc);
- status = usba_readl(udc, INT_STA) & int_enb;
+ status = usba_readl(udc, INT_STA) & (int_enb | USBA_HIGH_SPEED);
DBG(DBG_INT, "irq, status=%#08x\n", status);
if (status & USBA_DET_SUSPEND) {
@@ -1889,20 +1890,15 @@ static int atmel_usba_stop(struct usb_gadget *gadget)
#ifdef CONFIG_OF
static void at91sam9rl_toggle_bias(struct usba_udc *udc, int is_on)
{
- unsigned int uckr = at91_pmc_read(AT91_CKGR_UCKR);
-
- if (is_on)
- at91_pmc_write(AT91_CKGR_UCKR, uckr | AT91_PMC_BIASEN);
- else
- at91_pmc_write(AT91_CKGR_UCKR, uckr & ~(AT91_PMC_BIASEN));
+ regmap_update_bits(udc->pmc, AT91_CKGR_UCKR, AT91_PMC_BIASEN,
+ is_on ? AT91_PMC_BIASEN : 0);
}
static void at91sam9g45_pulse_bias(struct usba_udc *udc)
{
- unsigned int uckr = at91_pmc_read(AT91_CKGR_UCKR);
-
- at91_pmc_write(AT91_CKGR_UCKR, uckr & ~(AT91_PMC_BIASEN));
- at91_pmc_write(AT91_CKGR_UCKR, uckr | AT91_PMC_BIASEN);
+ regmap_update_bits(udc->pmc, AT91_CKGR_UCKR, AT91_PMC_BIASEN, 0);
+ regmap_update_bits(udc->pmc, AT91_CKGR_UCKR, AT91_PMC_BIASEN,
+ AT91_PMC_BIASEN);
}
static const struct usba_udc_errata at91sam9rl_errata = {
@@ -1939,6 +1935,9 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
return ERR_PTR(-EINVAL);
udc->errata = match->data;
+ udc->pmc = syscon_regmap_lookup_by_compatible("atmel,at91sam9g45-pmc");
+ if (udc->errata && IS_ERR(udc->pmc))
+ return ERR_CAST(udc->pmc);
udc->num_ep = 0;
@@ -1989,6 +1988,10 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
ep->can_isoc = of_property_read_bool(pp, "atmel,can-isoc");
ret = of_property_read_string(pp, "name", &name);
+ if (ret) {
+ dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
+ goto err;
+ }
ep->ep.name = name;
ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
@@ -1999,6 +2002,17 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
ep->udc = udc;
INIT_LIST_HEAD(&ep->queue);
+ if (ep->index == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = ep->can_isoc;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
+
if (i)
list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
@@ -2063,6 +2077,17 @@ static struct usba_ep * usba_udc_pdata(struct platform_device *pdev,
ep->can_dma = pdata->ep[i].can_dma;
ep->can_isoc = pdata->ep[i].can_isoc;
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = ep->can_isoc;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
+
if (i)
list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
}
@@ -2203,7 +2228,7 @@ static int usba_udc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int usba_udc_suspend(struct device *dev)
{
struct usba_udc *udc = dev_get_drvdata(dev);
diff --git a/kernel/drivers/usb/gadget/udc/atmel_usba_udc.h b/kernel/drivers/usb/gadget/udc/atmel_usba_udc.h
index ea448a344..3e1c9d589 100644
--- a/kernel/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/kernel/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -354,6 +354,8 @@ struct usba_udc {
struct dentry *debugfs_root;
struct dentry *debugfs_regs;
#endif
+
+ struct regmap *pmc;
};
static inline struct usba_ep *to_usba_ep(struct usb_ep *ep)
diff --git a/kernel/drivers/usb/gadget/udc/bcm63xx_udc.c b/kernel/drivers/usb/gadget/udc/bcm63xx_udc.c
index 9db968ba3..8cbb00325 100644
--- a/kernel/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/kernel/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -44,9 +44,29 @@
#define DRV_MODULE_NAME "bcm63xx_udc"
static const char bcm63xx_ep0name[] = "ep0";
-static const char *const bcm63xx_ep_name[] = {
- bcm63xx_ep0name,
- "ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int",
+
+static const struct {
+ const char *name;
+ const struct usb_ep_caps caps;
+} bcm63xx_ep_info[] = {
+#define EP_INFO(_name, _caps) \
+ { \
+ .name = _name, \
+ .caps = _caps, \
+ }
+
+ EP_INFO(bcm63xx_ep0name,
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep1in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep2out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep3in-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep4out-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
};
static bool use_fullspeed;
@@ -943,7 +963,8 @@ static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc)
for (i = 0; i < BCM63XX_NUM_EP; i++) {
struct bcm63xx_ep *bep = &udc->bep[i];
- bep->ep.name = bcm63xx_ep_name[i];
+ bep->ep.name = bcm63xx_ep_info[i].name;
+ bep->ep.caps = bcm63xx_ep_info[i].caps;
bep->ep_num = i;
bep->ep.ops = &bcm63xx_udc_ep_ops;
list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list);
diff --git a/kernel/drivers/usb/gadget/udc/bdc/bdc.h b/kernel/drivers/usb/gadget/udc/bdc/bdc.h
index dc18a20bf..916d47135 100644
--- a/kernel/drivers/usb/gadget/udc/bdc/bdc.h
+++ b/kernel/drivers/usb/gadget/udc/bdc/bdc.h
@@ -290,7 +290,7 @@ struct bdc_sr {
__le32 offset[4];
};
-/* bd_table: contigous bd's in a table */
+/* bd_table: contiguous bd's in a table */
struct bd_table {
struct bdc_bd *start_bd;
/* dma address of start bd of table*/
diff --git a/kernel/drivers/usb/gadget/udc/bdc/bdc_core.c b/kernel/drivers/usb/gadget/udc/bdc/bdc_core.c
index 5c8f4effb..ccb9c213c 100644
--- a/kernel/drivers/usb/gadget/udc/bdc/bdc_core.c
+++ b/kernel/drivers/usb/gadget/udc/bdc/bdc_core.c
@@ -324,8 +324,7 @@ static void bdc_mem_free(struct bdc *bdc)
bdc->scratchpad.buff, bdc->scratchpad.sp_dma);
/* Destroy the dma pools */
- if (bdc->bd_table_pool)
- dma_pool_destroy(bdc->bd_table_pool);
+ dma_pool_destroy(bdc->bd_table_pool);
/* Free the bdc_ep array */
kfree(bdc->bdc_ep_array);
diff --git a/kernel/drivers/usb/gadget/udc/bdc/bdc_ep.c b/kernel/drivers/usb/gadget/udc/bdc/bdc_ep.c
index b04980cf6..d6199507f 100644
--- a/kernel/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/kernel/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -159,8 +159,10 @@ static int ep_bd_list_alloc(struct bdc_ep *ep)
bd_table->start_bd = dma_pool_alloc(bdc->bd_table_pool,
GFP_ATOMIC,
&dma);
- if (!bd_table->start_bd)
+ if (!bd_table->start_bd) {
+ kfree(bd_table);
goto fail;
+ }
bd_table->dma = dma;
@@ -779,7 +781,7 @@ static int ep_dequeue(struct bdc_ep *ep, struct bdc_req *req)
/* The current hw dequeue pointer */
tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS0(0));
deq_ptr_64 = tmp_32;
- tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS0(1));
+ tmp_32 = bdc_readl(bdc->regs, BDC_EPSTS1(0));
deq_ptr_64 |= ((u64)tmp_32 << 32);
/* we have the dma addr of next bd that will be fetched by hardware */
@@ -1952,12 +1954,18 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
ep->bdc = bdc;
ep->dir = dir;
+ if (dir)
+ ep->usb_ep.caps.dir_in = true;
+ else
+ ep->usb_ep.caps.dir_out = true;
+
/* ep->ep_num is the index inside bdc_ep */
if (epnum == 1) {
ep->ep_num = 1;
bdc->bdc_ep_array[ep->ep_num] = ep;
snprintf(ep->name, sizeof(ep->name), "ep%d", epnum - 1);
usb_ep_set_maxpacket_limit(&ep->usb_ep, EP0_MAX_PKT_SIZE);
+ ep->usb_ep.caps.type_control = true;
ep->comp_desc = NULL;
bdc->gadget.ep0 = &ep->usb_ep;
} else {
@@ -1971,6 +1979,9 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
dir & 1 ? "in" : "out");
usb_ep_set_maxpacket_limit(&ep->usb_ep, 1024);
+ ep->usb_ep.caps.type_iso = true;
+ ep->usb_ep.caps.type_bulk = true;
+ ep->usb_ep.caps.type_int = true;
ep->usb_ep.max_streams = 0;
list_add_tail(&ep->usb_ep.ep_list, &bdc->gadget.ep_list);
}
diff --git a/kernel/drivers/usb/gadget/udc/dummy_hcd.c b/kernel/drivers/usb/gadget/udc/dummy_hcd.c
index 181112c88..dde44450d 100644
--- a/kernel/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/kernel/drivers/usb/gadget/udc/dummy_hcd.c
@@ -127,23 +127,87 @@ static inline struct dummy_request *usb_request_to_dummy_request
static const char ep0name[] = "ep0";
-static const char *const ep_name[] = {
- ep0name, /* everyone has ep0 */
+static const struct {
+ const char *name;
+ const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+ { \
+ .name = _name, \
+ .caps = _caps, \
+ }
+ /* everyone has ep0 */
+ EP_INFO(ep0name,
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
/* act like a pxa250: fifteen fixed function endpoints */
- "ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int",
- "ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int",
- "ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso",
- "ep15in-int",
-
+ EP_INFO("ep1in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep2out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep3in-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep4out-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep5in-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep6in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep7out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep8in-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep9out-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep10in-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep11in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep12out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep13in-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep14out-iso",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep15in-int",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
/* or like sa1100: two fixed function endpoints */
- "ep1out-bulk", "ep2in-bulk",
-
+ EP_INFO("ep1out-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep2in-bulk",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
/* and now some generic EPs so we have enough in multi config */
- "ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in",
- "ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out",
+ EP_INFO("ep3out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep4in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep5out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep6out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep7in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep8out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep9in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep10out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep11out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep12in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep13out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep14in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep15out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
};
-#define DUMMY_ENDPOINTS ARRAY_SIZE(ep_name)
+
+#define DUMMY_ENDPOINTS ARRAY_SIZE(ep_info)
/*-------------------------------------------------------------------------*/
@@ -769,10 +833,10 @@ static const struct usb_ep_ops dummy_ep_ops = {
/* there are both host and device side versions of this call ... */
static int dummy_g_get_frame(struct usb_gadget *_gadget)
{
- struct timeval tv;
+ struct timespec64 ts64;
- do_gettimeofday(&tv);
- return tv.tv_usec / 1000;
+ ktime_get_ts64(&ts64);
+ return ts64.tv_nsec / NSEC_PER_MSEC;
}
static int dummy_wakeup(struct usb_gadget *_gadget)
@@ -938,9 +1002,10 @@ static void init_dummy_udc_hw(struct dummy *dum)
for (i = 0; i < DUMMY_ENDPOINTS; i++) {
struct dummy_ep *ep = &dum->ep[i];
- if (!ep_name[i])
+ if (!ep_info[i].name)
break;
- ep->ep.name = ep_name[i];
+ ep->ep.name = ep_info[i].name;
+ ep->ep.caps = ep_info[i].caps;
ep->ep.ops = &dummy_ep_ops;
list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list);
ep->halted = ep->wedged = ep->already_seen =
@@ -1283,6 +1348,7 @@ static int transfer(struct dummy_hcd *dum_hcd, struct urb *urb,
{
struct dummy *dum = dum_hcd->dum;
struct dummy_request *req;
+ int sent = 0;
top:
/* if there's no request queued, the device is NAKing; return */
@@ -1320,12 +1386,15 @@ top:
if (len == 0)
break;
- /* use an extra pass for the final short packet */
- if (len > ep->ep.maxpacket) {
- rescan = 1;
- len -= (len % ep->ep.maxpacket);
+ /* send multiple of maxpacket first, then remainder */
+ if (len >= ep->ep.maxpacket) {
+ is_short = 0;
+ if (len % ep->ep.maxpacket)
+ rescan = 1;
+ len -= len % ep->ep.maxpacket;
+ } else {
+ is_short = 1;
}
- is_short = (len % ep->ep.maxpacket) != 0;
len = dummy_perform_transfer(urb, req, len);
@@ -1334,6 +1403,7 @@ top:
req->req.status = len;
} else {
limit -= len;
+ sent += len;
urb->actual_length += len;
req->req.actual += len;
}
@@ -1356,7 +1426,7 @@ top:
*status = -EOVERFLOW;
else
*status = 0;
- } else if (!to_host) {
+ } else {
*status = 0;
if (host_len > dev_len)
req->req.status = -EOVERFLOW;
@@ -1364,15 +1434,24 @@ top:
req->req.status = 0;
}
- /* many requests terminate without a short packet */
+ /*
+ * many requests terminate without a short packet.
+ * send a zlp if demanded by flags.
+ */
} else {
- if (req->req.length == req->req.actual
- && !req->req.zero)
- req->req.status = 0;
- if (urb->transfer_buffer_length == urb->actual_length
- && !(urb->transfer_flags
- & URB_ZERO_PACKET))
- *status = 0;
+ if (req->req.length == req->req.actual) {
+ if (req->req.zero && to_host)
+ rescan = 1;
+ else
+ req->req.status = 0;
+ }
+ if (urb->transfer_buffer_length == urb->actual_length) {
+ if (urb->transfer_flags & URB_ZERO_PACKET &&
+ !to_host)
+ rescan = 1;
+ else
+ *status = 0;
+ }
}
/* device side completion --> continuable */
@@ -1395,7 +1474,7 @@ top:
if (rescan)
goto top;
}
- return limit;
+ return sent;
}
static int periodic_bytes(struct dummy *dum, struct dummy_ep *ep)
@@ -1684,7 +1763,7 @@ static void dummy_timer(unsigned long _dum_hcd)
}
for (i = 0; i < DUMMY_ENDPOINTS; i++) {
- if (!ep_name[i])
+ if (!ep_info[i].name)
break;
dum->ep[i].already_seen = 0;
}
@@ -1825,7 +1904,7 @@ restart:
default:
treat_control_like_bulk:
ep->last_io = jiffies;
- total = transfer(dum_hcd, urb, ep, limit, &status);
+ total -= transfer(dum_hcd, urb, ep, limit, &status);
break;
}
diff --git a/kernel/drivers/usb/gadget/udc/fotg210-udc.c b/kernel/drivers/usb/gadget/udc/fotg210-udc.c
index e547ea7f5..6ba122cc7 100644
--- a/kernel/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/kernel/drivers/usb/gadget/udc/fotg210-udc.c
@@ -384,25 +384,15 @@ static void fotg210_ep0_queue(struct fotg210_ep *ep,
return;
}
if (ep->dir_in) { /* if IN */
- if (req->req.length) {
- fotg210_start_dma(ep, req);
- } else {
- pr_err("%s : req->req.length = 0x%x\n",
- __func__, req->req.length);
- }
+ fotg210_start_dma(ep, req);
if ((req->req.length == req->req.actual) ||
(req->req.actual < ep->ep.maxpacket))
fotg210_done(ep, req, 0);
} else { /* OUT */
- if (!req->req.length) {
- fotg210_done(ep, req, 0);
- } else {
- u32 value = ioread32(ep->fotg210->reg +
- FOTG210_DMISGR0);
+ u32 value = ioread32(ep->fotg210->reg + FOTG210_DMISGR0);
- value &= ~DMISGR0_MCX_OUT_INT;
- iowrite32(value, ep->fotg210->reg + FOTG210_DMISGR0);
- }
+ value &= ~DMISGR0_MCX_OUT_INT;
+ iowrite32(value, ep->fotg210->reg + FOTG210_DMISGR0);
}
}
@@ -1153,6 +1143,17 @@ static int fotg210_udc_probe(struct platform_device *pdev)
ep->ep.name = fotg210_ep_name[i];
ep->ep.ops = &fotg210_ep_ops;
usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
+
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
usb_ep_set_maxpacket_limit(&fotg210->ep[0]->ep, 0x40);
fotg210->gadget.ep0 = &fotg210->ep[0]->ep;
@@ -1171,7 +1172,7 @@ static int fotg210_udc_probe(struct platform_device *pdev)
udc_name, fotg210);
if (ret < 0) {
pr_err("request_irq error (%d)\n", ret);
- goto err_irq;
+ goto err_req;
}
ret = usb_add_gadget_udc(&pdev->dev, &fotg210->gadget);
@@ -1183,7 +1184,6 @@ static int fotg210_udc_probe(struct platform_device *pdev)
return 0;
err_add_udc:
-err_irq:
free_irq(ires->start, fotg210);
err_req:
diff --git a/kernel/drivers/usb/gadget/udc/fsl_qe_udc.c b/kernel/drivers/usb/gadget/udc/fsl_qe_udc.c
index e0822f1b6..5fb6f8b4f 100644
--- a/kernel/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/kernel/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2417,6 +2417,17 @@ static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num)
strcpy(ep->name, ep_name[pipe_num]);
ep->ep.name = ep_name[pipe_num];
+ if (pipe_num == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
+
ep->ep.ops = &qe_ep_ops;
ep->stopped = 1;
usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
diff --git a/kernel/drivers/usb/gadget/udc/fsl_udc_core.c b/kernel/drivers/usb/gadget/udc/fsl_udc_core.c
index c60022b46..aab5221d6 100644
--- a/kernel/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/kernel/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2313,6 +2313,19 @@ static int struct_ep_setup(struct fsl_udc *udc, unsigned char index,
ep->ep.ops = &fsl_ep_ops;
ep->stopped = 0;
+ if (index == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ if (index & 1)
+ ep->ep.caps.dir_in = true;
+ else
+ ep->ep.caps.dir_out = true;
+
/* for ep0: maxP defined in desc
* for other eps, maxP is set by epautoconfig() called by gadget layer
*/
diff --git a/kernel/drivers/usb/gadget/udc/fusb300_udc.c b/kernel/drivers/usb/gadget/udc/fusb300_udc.c
index 3970f453d..948845c90 100644
--- a/kernel/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/kernel/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1450,6 +1450,17 @@ static int fusb300_probe(struct platform_device *pdev)
ep->ep.name = fusb300_ep_name[i];
ep->ep.ops = &fusb300_ep_ops;
usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE);
+
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, HS_CTL_MAX_PACKET_SIZE);
fusb300->ep[0]->epnum = 0;
diff --git a/kernel/drivers/usb/gadget/udc/gadget_chips.h b/kernel/drivers/usb/gadget/udc/gadget_chips.h
deleted file mode 100644
index bcd04bc66..000000000
--- a/kernel/drivers/usb/gadget/udc/gadget_chips.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * USB device controllers have lots of quirks. Use these macros in
- * gadget drivers or other code that needs to deal with them, and which
- * autoconfigures instead of using early binding to the hardware.
- *
- * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
- * some config file that gets updated as new hardware is supported.
- * (And avoiding all runtime comparisons in typical one-choice configs!)
- *
- * NOTE: some of these controller drivers may not be available yet.
- * Some are available on 2.4 kernels; several are available, but not
- * yet pushed in the 2.6 mainline tree.
- */
-
-#ifndef __GADGET_CHIPS_H
-#define __GADGET_CHIPS_H
-
-#include <linux/usb/gadget.h>
-
-/*
- * NOTICE: the entries below are alphabetical and should be kept
- * that way.
- *
- * Always be sure to add new entries to the correct position or
- * accept the bashing later.
- *
- * If you have forgotten the alphabetical order let VIM/EMACS
- * do that for you.
- */
-#define gadget_is_at91(g) (!strcmp("at91_udc", (g)->name))
-#define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
-#define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
-#define gadget_is_net2280(g) (!strcmp("net2280", (g)->name))
-#define gadget_is_pxa(g) (!strcmp("pxa25x_udc", (g)->name))
-#define gadget_is_pxa27x(g) (!strcmp("pxa27x_udc", (g)->name))
-
-/**
- * gadget_supports_altsettings - return true if altsettings work
- * @gadget: the gadget in question
- */
-static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
-{
- /* PXA 21x/25x/26x has no altsettings at all */
- if (gadget_is_pxa(gadget))
- return false;
-
- /* PXA 27x and 3xx have *broken* altsetting support */
- if (gadget_is_pxa27x(gadget))
- return false;
-
- /* Everything else is *presumably* fine ... */
- return true;
-}
-
-#endif /* __GADGET_CHIPS_H */
diff --git a/kernel/drivers/usb/gadget/udc/goku_udc.c b/kernel/drivers/usb/gadget/udc/goku_udc.c
index 9e8d842e8..1fdfec14a 100644
--- a/kernel/drivers/usb/gadget/udc/goku_udc.c
+++ b/kernel/drivers/usb/gadget/udc/goku_udc.c
@@ -990,6 +990,35 @@ static int goku_get_frame(struct usb_gadget *_gadget)
return -EOPNOTSUPP;
}
+static struct usb_ep *goku_match_ep(struct usb_gadget *g,
+ struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+ struct goku_udc *dev = to_goku_udc(g);
+ struct usb_ep *ep;
+
+ switch (usb_endpoint_type(desc)) {
+ case USB_ENDPOINT_XFER_INT:
+ /* single buffering is enough */
+ ep = &dev->ep[3].ep;
+ if (usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+ return ep;
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ if (usb_endpoint_dir_in(desc)) {
+ /* DMA may be available */
+ ep = &dev->ep[2].ep;
+ if (usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+ return ep;
+ }
+ break;
+ default:
+ /* nothing */ ;
+ }
+
+ return NULL;
+}
+
static int goku_udc_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int goku_udc_stop(struct usb_gadget *g);
@@ -998,6 +1027,7 @@ static const struct usb_gadget_ops goku_ops = {
.get_frame = goku_get_frame,
.udc_start = goku_udc_start,
.udc_stop = goku_udc_stop,
+ .match_ep = goku_match_ep,
// no remote wakeup
// not selfpowered
};
@@ -1257,6 +1287,14 @@ static void udc_reinit (struct goku_udc *dev)
INIT_LIST_HEAD (&ep->queue);
ep_reset(NULL, ep);
+
+ if (i == 0)
+ ep->ep.caps.type_control = true;
+ else
+ ep->ep.caps.type_bulk = true;
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
dev->ep[0].reg_mode = NULL;
diff --git a/kernel/drivers/usb/gadget/udc/gr_udc.c b/kernel/drivers/usb/gadget/udc/gr_udc.c
index c8868870e..b9429bc42 100644
--- a/kernel/drivers/usb/gadget/udc/gr_udc.c
+++ b/kernel/drivers/usb/gadget/udc/gr_udc.c
@@ -2018,12 +2018,23 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit)
usb_ep_set_maxpacket_limit(&ep->ep, MAX_CTRL_PL_SIZE);
ep->bytes_per_buffer = MAX_CTRL_PL_SIZE;
+
+ ep->ep.caps.type_control = true;
} else {
usb_ep_set_maxpacket_limit(&ep->ep, (u16)maxplimit);
list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
+
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
}
list_add_tail(&ep->ep_list, &dev->ep_list);
+ if (is_in)
+ ep->ep.caps.dir_in = true;
+ else
+ ep->ep.caps.dir_out = true;
+
ep->tailbuf = dma_alloc_coherent(dev->dev, ep->ep.maxpacket_limit,
&ep->tailbuf_paddr, GFP_ATOMIC);
if (!ep->tailbuf)
@@ -2106,8 +2117,7 @@ static int gr_remove(struct platform_device *pdev)
return -EBUSY;
gr_dfs_delete(dev);
- if (dev->desc_pool)
- dma_pool_destroy(dev->desc_pool);
+ dma_pool_destroy(dev->desc_pool);
platform_set_drvdata(pdev, NULL);
gr_free_request(&dev->epi[0].ep, &dev->ep0reqi->req);
diff --git a/kernel/drivers/usb/gadget/udc/lpc32xx_udc.c b/kernel/drivers/usb/gadget/udc/lpc32xx_udc.c
index 3b6a78528..00b5006ba 100644
--- a/kernel/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/kernel/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -2575,6 +2575,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep0",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 0,
@@ -2586,6 +2588,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep1-int",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 2,
@@ -2597,6 +2601,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep2-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 4,
@@ -2608,6 +2614,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep3-iso",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 1023,
.hwep_num_base = 6,
@@ -2619,6 +2627,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep4-int",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 8,
@@ -2630,6 +2640,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep5-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 10,
@@ -2641,6 +2653,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep6-iso",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 1023,
.hwep_num_base = 12,
@@ -2652,6 +2666,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep7-int",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 14,
@@ -2663,6 +2679,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep8-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 16,
@@ -2674,6 +2692,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep9-iso",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 1023,
.hwep_num_base = 18,
@@ -2685,6 +2705,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep10-int",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 20,
@@ -2696,6 +2718,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep11-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 22,
@@ -2707,6 +2731,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep12-iso",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 1023,
.hwep_num_base = 24,
@@ -2718,6 +2744,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep13-int",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 26,
@@ -2729,6 +2757,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep14-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 64,
.hwep_num_base = 28,
@@ -2740,6 +2770,8 @@ static const struct lpc32xx_udc controller_template = {
.ep = {
.name = "ep15-bulk",
.ops = &lpc32xx_ep_ops,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.maxpacket = 1023,
.hwep_num_base = 30,
diff --git a/kernel/drivers/usb/gadget/udc/m66592-udc.c b/kernel/drivers/usb/gadget/udc/m66592-udc.c
index 9704053df..b1cfa96cc 100644
--- a/kernel/drivers/usb/gadget/udc/m66592-udc.c
+++ b/kernel/drivers/usb/gadget/udc/m66592-udc.c
@@ -1644,6 +1644,17 @@ static int m66592_probe(struct platform_device *pdev)
ep->ep.name = m66592_ep_name[i];
ep->ep.ops = &m66592_ep_ops;
usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64);
m66592->ep[0].pipenum = 0;
diff --git a/kernel/drivers/usb/gadget/udc/mv_u3d_core.c b/kernel/drivers/usb/gadget/udc/mv_u3d_core.c
index ea35a248c..dafe74eb9 100644
--- a/kernel/drivers/usb/gadget/udc/mv_u3d_core.c
+++ b/kernel/drivers/usb/gadget/udc/mv_u3d_core.c
@@ -1324,6 +1324,9 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
ep->ep.ops = &mv_u3d_ep_ops;
ep->wedge = 0;
usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE);
+ ep->ep.caps.type_control = true;
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
ep->ep_num = 0;
ep->ep.desc = &mv_u3d_ep0_desc;
INIT_LIST_HEAD(&ep->queue);
@@ -1339,14 +1342,20 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
if (i & 1) {
snprintf(name, sizeof(name), "ep%din", i >> 1);
ep->direction = MV_U3D_EP_DIR_IN;
+ ep->ep.caps.dir_in = true;
} else {
snprintf(name, sizeof(name), "ep%dout", i >> 1);
ep->direction = MV_U3D_EP_DIR_OUT;
+ ep->ep.caps.dir_out = true;
}
ep->u3d = u3d;
strncpy(ep->name, name, sizeof(ep->name));
ep->ep.name = ep->name;
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+
ep->ep.ops = &mv_u3d_ep_ops;
usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
ep->ep_num = i / 2;
@@ -1758,8 +1767,7 @@ static int mv_u3d_remove(struct platform_device *dev)
usb_del_gadget_udc(&u3d->gadget);
/* free memory allocated in probe */
- if (u3d->trb_pool)
- dma_pool_destroy(u3d->trb_pool);
+ dma_pool_destroy(u3d->trb_pool);
if (u3d->ep_context)
dma_free_coherent(&dev->dev, u3d->ep_context_size,
diff --git a/kernel/drivers/usb/gadget/udc/mv_udc_core.c b/kernel/drivers/usb/gadget/udc/mv_udc_core.c
index 5da37c957..81b6229c7 100644
--- a/kernel/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/kernel/drivers/usb/gadget/udc/mv_udc_core.c
@@ -1257,6 +1257,9 @@ static int eps_init(struct mv_udc *udc)
ep->wedge = 0;
ep->stopped = 0;
usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE);
+ ep->ep.caps.type_control = true;
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
ep->ep_num = 0;
ep->ep.desc = &mv_ep0_desc;
INIT_LIST_HEAD(&ep->queue);
@@ -1269,14 +1272,20 @@ static int eps_init(struct mv_udc *udc)
if (i % 2) {
snprintf(name, sizeof(name), "ep%din", i / 2);
ep->direction = EP_DIR_IN;
+ ep->ep.caps.dir_in = true;
} else {
snprintf(name, sizeof(name), "ep%dout", i / 2);
ep->direction = EP_DIR_OUT;
+ ep->ep.caps.dir_out = true;
}
ep->udc = udc;
strncpy(ep->name, name, sizeof(ep->name));
ep->ep.name = ep->name;
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+
ep->ep.ops = &mv_ep_ops;
ep->stopped = 0;
usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
@@ -2091,8 +2100,7 @@ static int mv_udc_remove(struct platform_device *pdev)
}
/* free memory allocated in probe */
- if (udc->dtd_pool)
- dma_pool_destroy(udc->dtd_pool);
+ dma_pool_destroy(udc->dtd_pool);
if (udc->ep_dqh)
dma_free_coherent(&pdev->dev, udc->ep_dqh_size,
diff --git a/kernel/drivers/usb/gadget/udc/net2272.c b/kernel/drivers/usb/gadget/udc/net2272.c
index 195baf3e1..18f5ebd44 100644
--- a/kernel/drivers/usb/gadget/udc/net2272.c
+++ b/kernel/drivers/usb/gadget/udc/net2272.c
@@ -1404,6 +1404,17 @@ net2272_usb_reinit(struct net2272 *dev)
else
ep->fifo_size = 64;
net2272_ep_reset(ep);
+
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
@@ -1826,9 +1837,9 @@ net2272_handle_stat0_irqs(struct net2272 *dev, u8 stat)
if (!e || u.r.wLength > 2)
goto do_stall;
if (net2272_ep_read(e, EP_RSPSET) & (1 << ENDPOINT_HALT))
- status = __constant_cpu_to_le16(1);
+ status = cpu_to_le16(1);
else
- status = __constant_cpu_to_le16(0);
+ status = cpu_to_le16(0);
/* don't bother with a request object! */
net2272_ep_write(&dev->ep[0], EP_IRQENB, 0);
diff --git a/kernel/drivers/usb/gadget/udc/net2280.c b/kernel/drivers/usb/gadget/udc/net2280.c
index 9871b9019..6706aef90 100644
--- a/kernel/drivers/usb/gadget/udc/net2280.c
+++ b/kernel/drivers/usb/gadget/udc/net2280.c
@@ -74,19 +74,58 @@ static const char driver_desc[] = DRIVER_DESC;
static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
static const char ep0name[] = "ep0";
-static const char *const ep_name[] = {
- ep0name,
- "ep-a", "ep-b", "ep-c", "ep-d",
- "ep-e", "ep-f", "ep-g", "ep-h",
-};
-/* Endpoint names for usb3380 advance mode */
-static const char *const ep_name_adv[] = {
- ep0name,
- "ep1in", "ep2out", "ep3in", "ep4out",
- "ep1out", "ep2in", "ep3out", "ep4in",
+#define EP_INFO(_name, _caps) \
+ { \
+ .name = _name, \
+ .caps = _caps, \
+ }
+
+static const struct {
+ const char *name;
+ const struct usb_ep_caps caps;
+} ep_info_dft[] = { /* Default endpoint configuration */
+ EP_INFO(ep0name,
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-a",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-b",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-c",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-d",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-e",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-f",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-g",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep-h",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+}, ep_info_adv[] = { /* Endpoints for usb3380 advance mode */
+ EP_INFO(ep0name,
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+ EP_INFO("ep1in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep2out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep3in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep4out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep1out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep2in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+ EP_INFO("ep3out",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+ EP_INFO("ep4in",
+ USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
};
+#undef EP_INFO
+
/* mode 0 == ep-{a,b,c,d} 1K fifo each
* mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
* mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
@@ -123,6 +162,11 @@ static char *type_string(u8 bmAttributes)
#define valid_bit cpu_to_le32(BIT(VALID_BIT))
#define dma_done_ie cpu_to_le32(BIT(DMA_DONE_INTERRUPT_ENABLE))
+static void ep_clear_seqnum(struct net2280_ep *ep);
+static void stop_activity(struct net2280 *dev,
+ struct usb_gadget_driver *driver);
+static void ep0_start(struct net2280 *dev);
+
/*-------------------------------------------------------------------------*/
static inline void enable_pciirqenb(struct net2280_ep *ep)
{
@@ -142,7 +186,9 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
{
struct net2280 *dev;
struct net2280_ep *ep;
- u32 max, tmp;
+ u32 max;
+ u32 tmp = 0;
+ u32 type;
unsigned long flags;
static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 };
int ret = 0;
@@ -198,15 +244,29 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
/* set type, direction, address; reset fifo counters */
writel(BIT(FIFO_FLUSH), &ep->regs->ep_stat);
- tmp = (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
- if (tmp == USB_ENDPOINT_XFER_INT) {
+
+ if ((dev->quirks & PLX_SUPERSPEED) && dev->enhanced_mode) {
+ tmp = readl(&ep->cfg->ep_cfg);
+ /* If USB ep number doesn't match hardware ep number */
+ if ((tmp & 0xf) != usb_endpoint_num(desc)) {
+ ret = -EINVAL;
+ spin_unlock_irqrestore(&dev->lock, flags);
+ goto print_err;
+ }
+ if (ep->is_in)
+ tmp &= ~USB3380_EP_CFG_MASK_IN;
+ else
+ tmp &= ~USB3380_EP_CFG_MASK_OUT;
+ }
+ type = (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
+ if (type == USB_ENDPOINT_XFER_INT) {
/* erratum 0105 workaround prevents hs NYET */
if (dev->chiprev == 0100 &&
dev->gadget.speed == USB_SPEED_HIGH &&
!(desc->bEndpointAddress & USB_DIR_IN))
writel(BIT(CLEAR_NAK_OUT_PACKETS_MODE),
&ep->regs->ep_rsp);
- } else if (tmp == USB_ENDPOINT_XFER_BULK) {
+ } else if (type == USB_ENDPOINT_XFER_BULK) {
/* catch some particularly blatant driver bugs */
if ((dev->gadget.speed == USB_SPEED_SUPER && max != 1024) ||
(dev->gadget.speed == USB_SPEED_HIGH && max != 512) ||
@@ -216,10 +276,10 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
goto print_err;
}
}
- ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC);
+ ep->is_iso = (type == USB_ENDPOINT_XFER_ISOC);
/* Enable this endpoint */
if (dev->quirks & PLX_LEGACY) {
- tmp <<= ENDPOINT_TYPE;
+ tmp |= type << ENDPOINT_TYPE;
tmp |= desc->bEndpointAddress;
/* default full fifo lines */
tmp |= (4 << ENDPOINT_BYTE_COUNT);
@@ -228,17 +288,17 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
} else {
/* In Legacy mode, only OUT endpoints are used */
if (dev->enhanced_mode && ep->is_in) {
- tmp <<= IN_ENDPOINT_TYPE;
+ tmp |= type << IN_ENDPOINT_TYPE;
tmp |= BIT(IN_ENDPOINT_ENABLE);
- /* Not applicable to Legacy */
- tmp |= BIT(ENDPOINT_DIRECTION);
} else {
- tmp <<= OUT_ENDPOINT_TYPE;
+ tmp |= type << OUT_ENDPOINT_TYPE;
tmp |= BIT(OUT_ENDPOINT_ENABLE);
tmp |= (ep->is_in << ENDPOINT_DIRECTION);
}
- tmp |= usb_endpoint_num(desc);
+ tmp |= (4 << ENDPOINT_BYTE_COUNT);
+ if (!dev->enhanced_mode)
+ tmp |= usb_endpoint_num(desc);
tmp |= (ep->ep.maxburst << MAX_BURST_SIZE);
}
@@ -256,6 +316,8 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
BIT(CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp);
}
+ if (dev->quirks & PLX_SUPERSPEED)
+ ep_clear_seqnum(ep);
writel(tmp, &ep->cfg->ep_cfg);
/* enable irqs */
@@ -441,6 +503,13 @@ static void ep_reset_338x(struct net2280_regs __iomem *regs,
BIT(DATA_PACKET_TRANSMITTED_INTERRUPT) |
BIT(DATA_OUT_PING_TOKEN_INTERRUPT) |
BIT(DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat);
+
+ tmp = readl(&ep->cfg->ep_cfg);
+ if (ep->is_in)
+ tmp &= ~USB3380_EP_CFG_MASK_IN;
+ else
+ tmp &= ~USB3380_EP_CFG_MASK_OUT;
+ writel(tmp, &ep->cfg->ep_cfg);
}
static void nuke(struct net2280_ep *);
@@ -1468,16 +1537,46 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
spin_lock_irqsave(&dev->lock, flags);
tmp = readl(&dev->usb->usbctl);
dev->softconnect = (is_on != 0);
- if (is_on)
- tmp |= BIT(USB_DETECT_ENABLE);
- else
- tmp &= ~BIT(USB_DETECT_ENABLE);
- writel(tmp, &dev->usb->usbctl);
+ if (is_on) {
+ ep0_start(dev);
+ writel(tmp | BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
+ } else {
+ writel(tmp & ~BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
+ stop_activity(dev, dev->driver);
+ }
+
spin_unlock_irqrestore(&dev->lock, flags);
return 0;
}
+static struct usb_ep *net2280_match_ep(struct usb_gadget *_gadget,
+ struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+ char name[8];
+ struct usb_ep *ep;
+
+ if (usb_endpoint_type(desc) == USB_ENDPOINT_XFER_INT) {
+ /* ep-e, ep-f are PIO with only 64 byte fifos */
+ ep = gadget_find_ep_by_name(_gadget, "ep-e");
+ if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+ return ep;
+ ep = gadget_find_ep_by_name(_gadget, "ep-f");
+ if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+ return ep;
+ }
+
+ /* USB3380: use same address for usb and hardware endpoints */
+ snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
+ usb_endpoint_dir_in(desc) ? "in" : "out");
+ ep = gadget_find_ep_by_name(_gadget, name);
+ if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+ return ep;
+
+ return NULL;
+}
+
static int net2280_start(struct usb_gadget *_gadget,
struct usb_gadget_driver *driver);
static int net2280_stop(struct usb_gadget *_gadget);
@@ -1489,6 +1588,7 @@ static const struct usb_gadget_ops net2280_ops = {
.pullup = net2280_pullup,
.udc_start = net2280_start,
.udc_stop = net2280_stop,
+ .match_ep = net2280_match_ep,
};
/*-------------------------------------------------------------------------*/
@@ -1813,7 +1913,7 @@ static void defect7374_disable_data_eps(struct net2280 *dev)
for (i = 1; i < 5; i++) {
ep = &dev->ep[i];
- writel(0, &ep->cfg->ep_cfg);
+ writel(i, &ep->cfg->ep_cfg);
}
/* CSROUT, CSRIN, PCIOUT, PCIIN, STATIN, RCIN */
@@ -1860,8 +1960,8 @@ static void defect7374_enable_data_eps_zero(struct net2280 *dev)
tmp = ((0 << ENDPOINT_NUMBER) | BIT(ENDPOINT_DIRECTION) |
(2 << OUT_ENDPOINT_TYPE) | (2 << IN_ENDPOINT_TYPE) |
((dev->enhanced_mode) ?
- BIT(OUT_ENDPOINT_ENABLE) : BIT(ENDPOINT_ENABLE)) |
- BIT(IN_ENDPOINT_ENABLE));
+ BIT(OUT_ENDPOINT_ENABLE) | BIT(IN_ENDPOINT_ENABLE) :
+ BIT(ENDPOINT_ENABLE)));
for (i = 1; i < 5; i++)
writel(tmp, &dev->ep[i].cfg->ep_cfg);
@@ -1975,9 +2075,15 @@ static void usb_reset_338x(struct net2280 *dev)
/* clear old dma and irq state */
for (tmp = 0; tmp < 4; tmp++) {
struct net2280_ep *ep = &dev->ep[tmp + 1];
+ struct net2280_dma_regs __iomem *dma;
- if (ep->dma)
+ if (ep->dma) {
abort_dma(ep);
+ } else {
+ dma = &dev->dma[tmp];
+ writel(BIT(DMA_ABORT), &dma->dmastat);
+ writel(0, &dma->dmactl);
+ }
}
writel(~0, &dev->regs->irqstat0), writel(~0, &dev->regs->irqstat1);
@@ -2016,7 +2122,8 @@ static void usb_reinit_228x(struct net2280 *dev)
for (tmp = 0; tmp < 7; tmp++) {
struct net2280_ep *ep = &dev->ep[tmp];
- ep->ep.name = ep_name[tmp];
+ ep->ep.name = ep_info_dft[tmp].name;
+ ep->ep.caps = ep_info_dft[tmp].caps;
ep->dev = dev;
ep->num = tmp;
@@ -2056,7 +2163,10 @@ static void usb_reinit_338x(struct net2280 *dev)
for (i = 0; i < dev->n_ep; i++) {
struct net2280_ep *ep = &dev->ep[i];
- ep->ep.name = dev->enhanced_mode ? ep_name_adv[i] : ep_name[i];
+ ep->ep.name = dev->enhanced_mode ? ep_info_adv[i].name :
+ ep_info_dft[i].name;
+ ep->ep.caps = dev->enhanced_mode ? ep_info_adv[i].caps :
+ ep_info_dft[i].caps;
ep->dev = dev;
ep->num = i;
@@ -2065,6 +2175,12 @@ static void usb_reinit_338x(struct net2280 *dev)
if (dev->enhanced_mode) {
ep->cfg = &dev->epregs[ne[i]];
+ /*
+ * Set USB endpoint number, hardware allows same number
+ * in both directions.
+ */
+ if (i > 0 && i < 5)
+ writel(ne[i], &ep->cfg->ep_cfg);
ep->regs = (struct net2280_ep_regs __iomem *)
(((void __iomem *)&dev->epregs[ne[i]]) +
ep_reg_addr[i]);
@@ -2874,6 +2990,26 @@ next_endpoints3:
return;
}
+static void usb338x_handle_ep_intr(struct net2280 *dev, u32 stat0)
+{
+ u32 index;
+ u32 bit;
+
+ for (index = 0; index < ARRAY_SIZE(ep_bit); index++) {
+ bit = BIT(ep_bit[index]);
+
+ if (!stat0)
+ break;
+
+ if (!(stat0 & bit))
+ continue;
+
+ stat0 &= ~bit;
+
+ handle_ep_small(&dev->ep[index]);
+ }
+}
+
static void handle_stat0_irqs(struct net2280 *dev, u32 stat)
{
struct net2280_ep *ep;
@@ -3098,20 +3234,31 @@ do_stall:
#undef w_length
next_endpoints:
- /* endpoint data irq ? */
- scratch = stat & 0x7f;
- stat &= ~0x7f;
- for (num = 0; scratch; num++) {
- u32 t;
-
- /* do this endpoint's FIFO and queue need tending? */
- t = BIT(num);
- if ((scratch & t) == 0)
- continue;
- scratch ^= t;
+ if ((dev->quirks & PLX_SUPERSPEED) && dev->enhanced_mode) {
+ u32 mask = (BIT(ENDPOINT_0_INTERRUPT) |
+ USB3380_IRQSTAT0_EP_INTR_MASK_IN |
+ USB3380_IRQSTAT0_EP_INTR_MASK_OUT);
+
+ if (stat & mask) {
+ usb338x_handle_ep_intr(dev, stat & mask);
+ stat &= ~mask;
+ }
+ } else {
+ /* endpoint data irq ? */
+ scratch = stat & 0x7f;
+ stat &= ~0x7f;
+ for (num = 0; scratch; num++) {
+ u32 t;
+
+ /* do this endpoint's FIFO and queue need tending? */
+ t = BIT(num);
+ if ((scratch & t) == 0)
+ continue;
+ scratch ^= t;
- ep = &dev->ep[num];
- handle_ep_small(ep);
+ ep = &dev->ep[num];
+ handle_ep_small(ep);
+ }
}
if (stat)
diff --git a/kernel/drivers/usb/gadget/udc/omap_udc.c b/kernel/drivers/usb/gadget/udc/omap_udc.c
index e2fcdb8e5..9b7d39484 100644
--- a/kernel/drivers/usb/gadget/udc/omap_udc.c
+++ b/kernel/drivers/usb/gadget/udc/omap_udc.c
@@ -2579,6 +2579,28 @@ omap_ep_setup(char *name, u8 addr, u8 type,
ep->double_buf = dbuf;
ep->udc = udc;
+ switch (type) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ ep->ep.caps.type_control = true;
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
+ break;
+ case USB_ENDPOINT_XFER_ISOC:
+ ep->ep.caps.type_iso = true;
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ ep->ep.caps.type_bulk = true;
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ ep->ep.caps.type_int = true;
+ break;
+ };
+
+ if (addr & USB_DIR_IN)
+ ep->ep.caps.dir_in = true;
+ else
+ ep->ep.caps.dir_out = true;
+
ep->ep.name = ep->name;
ep->ep.ops = &omap_ep_ops;
ep->maxpacket = maxp;
diff --git a/kernel/drivers/usb/gadget/udc/pch_udc.c b/kernel/drivers/usb/gadget/udc/pch_udc.c
index 613547f07..7a04157ff 100644
--- a/kernel/drivers/usb/gadget/udc/pch_udc.c
+++ b/kernel/drivers/usb/gadget/udc/pch_udc.c
@@ -330,7 +330,7 @@ struct pch_vbus_gpio_data {
* @prot_stall: protcol stall requested
* @irq_registered: irq registered with system
* @mem_region: device memory mapped
- * @registered: driver regsitered with system
+ * @registered: driver registered with system
* @suspended: driver in suspended state
* @connected: gadget driver associated
* @vbus_session: required vbus_session state
@@ -620,9 +620,9 @@ static inline void pch_udc_vbus_session(struct pch_udc_dev *dev,
dev->vbus_session = 1;
} else {
if (dev->driver && dev->driver->disconnect) {
- spin_unlock(&dev->lock);
- dev->driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
+ dev->driver->disconnect(&dev->gadget);
+ spin_unlock(&dev->lock);
}
pch_udc_set_disconnect(dev);
dev->vbus_session = 0;
@@ -1191,9 +1191,9 @@ static int pch_udc_pcd_pullup(struct usb_gadget *gadget, int is_on)
pch_udc_reconnect(dev);
} else {
if (dev->driver && dev->driver->disconnect) {
- spin_unlock(&dev->lock);
- dev->driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
+ dev->driver->disconnect(&dev->gadget);
+ spin_unlock(&dev->lock);
}
pch_udc_set_disconnect(dev);
}
@@ -1488,11 +1488,11 @@ static void complete_req(struct pch_udc_ep *ep, struct pch_udc_request *req,
req->dma_mapped = 0;
}
ep->halted = 1;
- spin_unlock(&dev->lock);
+ spin_lock(&dev->lock);
if (!ep->in)
pch_udc_ep_clear_rrdy(ep);
usb_gadget_giveback_request(&ep->ep, &req->req);
- spin_lock(&dev->lock);
+ spin_unlock(&dev->lock);
ep->halted = halted;
}
@@ -1793,7 +1793,7 @@ static struct usb_request *pch_udc_alloc_request(struct usb_ep *usbep,
}
/* prevent from using desc. - set HOST BUSY */
dma_desc->status |= PCH_UDC_BS_HST_BSY;
- dma_desc->dataptr = __constant_cpu_to_le32(DMA_ADDR_INVALID);
+ dma_desc->dataptr = cpu_to_le32(DMA_ADDR_INVALID);
req->td_data = dma_desc;
req->td_data_last = dma_desc;
req->chain_len = 1;
@@ -2414,7 +2414,7 @@ static void pch_udc_svc_control_out(struct pch_udc_dev *dev)
dev->gadget.ep0 = &dev->ep[UDC_EP0IN_IDX].ep;
else /* OUT */
dev->gadget.ep0 = &ep->ep;
- spin_unlock(&dev->lock);
+ spin_lock(&dev->lock);
/* If Mass storage Reset */
if ((dev->setup_data.bRequestType == 0x21) &&
(dev->setup_data.bRequest == 0xFF))
@@ -2422,7 +2422,7 @@ static void pch_udc_svc_control_out(struct pch_udc_dev *dev)
/* call gadget with setup data received */
setup_supported = dev->driver->setup(&dev->gadget,
&dev->setup_data);
- spin_lock(&dev->lock);
+ spin_unlock(&dev->lock);
if (dev->setup_data.bRequestType & USB_DIR_IN) {
ep->td_data->status = (ep->td_data->status &
@@ -2594,9 +2594,9 @@ static void pch_udc_svc_ur_interrupt(struct pch_udc_dev *dev)
empty_req_queue(ep);
}
if (dev->driver) {
- spin_unlock(&dev->lock);
- usb_gadget_udc_reset(&dev->gadget, dev->driver);
spin_lock(&dev->lock);
+ usb_gadget_udc_reset(&dev->gadget, dev->driver);
+ spin_unlock(&dev->lock);
}
}
@@ -2675,9 +2675,9 @@ static void pch_udc_svc_intf_interrupt(struct pch_udc_dev *dev)
dev->ep[i].halted = 0;
}
dev->stall = 0;
- spin_unlock(&dev->lock);
- ret = dev->driver->setup(&dev->gadget, &dev->setup_data);
spin_lock(&dev->lock);
+ ret = dev->driver->setup(&dev->gadget, &dev->setup_data);
+ spin_unlock(&dev->lock);
}
/**
@@ -2712,9 +2712,9 @@ static void pch_udc_svc_cfg_interrupt(struct pch_udc_dev *dev)
dev->stall = 0;
/* call gadget zero with setup data received */
- spin_unlock(&dev->lock);
- ret = dev->driver->setup(&dev->gadget, &dev->setup_data);
spin_lock(&dev->lock);
+ ret = dev->driver->setup(&dev->gadget, &dev->setup_data);
+ spin_unlock(&dev->lock);
}
/**
@@ -2895,11 +2895,21 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
ep->in = ~i & 1;
ep->ep.name = ep_string[i];
ep->ep.ops = &pch_udc_ep_ops;
- if (ep->in)
+ if (ep->in) {
ep->offset_addr = ep->num * UDC_EP_REG_SHIFT;
- else
+ ep->ep.caps.dir_in = true;
+ } else {
ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) *
UDC_EP_REG_SHIFT;
+ ep->ep.caps.dir_out = true;
+ }
+ if (i == UDC_EP0IN_IDX || i == UDC_EP0OUT_IDX) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
/* need to set ep->ep.maxpacket and set Default Configuration?*/
usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE);
list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
diff --git a/kernel/drivers/usb/gadget/udc/pxa25x_udc.c b/kernel/drivers/usb/gadget/udc/pxa25x_udc.c
index f6cbe667c..b82cb1485 100644
--- a/kernel/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/kernel/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1176,6 +1176,7 @@ static void udc_reinit(struct pxa25x_udc *dev)
INIT_LIST_HEAD (&dev->gadget.ep_list);
INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
dev->ep0state = EP0_IDLE;
+ dev->gadget.quirk_altset_not_supp = 1;
/* basic endpoint records init */
for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
@@ -1821,6 +1822,8 @@ static struct pxa25x_udc memory = {
.name = ep0name,
.ops = &pxa25x_ep_ops,
.maxpacket = EP0_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
.reg_udccs = &UDCCS0,
@@ -1833,6 +1836,8 @@ static struct pxa25x_udc memory = {
.name = "ep1in-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1846,6 +1851,8 @@ static struct pxa25x_udc memory = {
.name = "ep2out-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1861,6 +1868,8 @@ static struct pxa25x_udc memory = {
.name = "ep3in-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -1874,6 +1883,8 @@ static struct pxa25x_udc memory = {
.name = "ep4out-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -1888,6 +1899,7 @@ static struct pxa25x_udc memory = {
.name = "ep5in-int",
.ops = &pxa25x_ep_ops,
.maxpacket = INT_FIFO_SIZE,
+ .caps = USB_EP_CAPS(0, 0),
},
.dev = &memory,
.fifo_size = INT_FIFO_SIZE,
@@ -1903,6 +1915,8 @@ static struct pxa25x_udc memory = {
.name = "ep6in-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1916,6 +1930,8 @@ static struct pxa25x_udc memory = {
.name = "ep7out-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1930,6 +1946,8 @@ static struct pxa25x_udc memory = {
.name = "ep8in-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -1943,6 +1961,8 @@ static struct pxa25x_udc memory = {
.name = "ep9out-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -1957,6 +1977,7 @@ static struct pxa25x_udc memory = {
.name = "ep10in-int",
.ops = &pxa25x_ep_ops,
.maxpacket = INT_FIFO_SIZE,
+ .caps = USB_EP_CAPS(0, 0),
},
.dev = &memory,
.fifo_size = INT_FIFO_SIZE,
@@ -1972,6 +1993,8 @@ static struct pxa25x_udc memory = {
.name = "ep11in-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1985,6 +2008,8 @@ static struct pxa25x_udc memory = {
.name = "ep12out-bulk",
.ops = &pxa25x_ep_ops,
.maxpacket = BULK_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = BULK_FIFO_SIZE,
@@ -1999,6 +2024,8 @@ static struct pxa25x_udc memory = {
.name = "ep13in-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_IN),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -2012,6 +2039,8 @@ static struct pxa25x_udc memory = {
.name = "ep14out-iso",
.ops = &pxa25x_ep_ops,
.maxpacket = ISO_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+ USB_EP_CAPS_DIR_OUT),
},
.dev = &memory,
.fifo_size = ISO_FIFO_SIZE,
@@ -2026,6 +2055,7 @@ static struct pxa25x_udc memory = {
.name = "ep15in-int",
.ops = &pxa25x_ep_ops,
.maxpacket = INT_FIFO_SIZE,
+ .caps = USB_EP_CAPS(0, 0),
},
.dev = &memory,
.fifo_size = INT_FIFO_SIZE,
diff --git a/kernel/drivers/usb/gadget/udc/pxa27x_udc.c b/kernel/drivers/usb/gadget/udc/pxa27x_udc.c
index b51226aba..001a3b74a 100644
--- a/kernel/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/kernel/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -1710,6 +1710,7 @@ static void udc_init_data(struct pxa_udc *dev)
INIT_LIST_HEAD(&dev->gadget.ep_list);
INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
dev->udc_usb_ep[0].pxa_ep = &dev->pxa_ep[0];
+ dev->gadget.quirk_altset_not_supp = 1;
ep0_idle(dev);
/* PXA endpoints init */
@@ -2422,7 +2423,7 @@ static int pxa_udc_probe(struct platform_device *pdev)
}
udc->udc_command = mach->udc_command;
} else {
- udc->gpiod = devm_gpiod_get(&pdev->dev, NULL);
+ udc->gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_ASIS);
}
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -2535,6 +2536,9 @@ static int pxa_udc_suspend(struct platform_device *_dev, pm_message_t state)
udc->pullup_resume = udc->pullup_on;
dplus_pullup(udc, 0);
+ if (udc->driver)
+ udc->driver->disconnect(&udc->gadget);
+
return 0;
}
diff --git a/kernel/drivers/usb/gadget/udc/pxa27x_udc.h b/kernel/drivers/usb/gadget/udc/pxa27x_udc.h
index 11e142327..cea2cb79b 100644
--- a/kernel/drivers/usb/gadget/udc/pxa27x_udc.h
+++ b/kernel/drivers/usb/gadget/udc/pxa27x_udc.h
@@ -234,25 +234,35 @@
/*
* Endpoint definition helpers
*/
-#define USB_EP_DEF(addr, bname, dir, type, maxpkt) \
-{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, }, \
+#define USB_EP_DEF(addr, bname, dir, type, maxpkt, ctype, cdir) \
+{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, \
+ .caps = USB_EP_CAPS(ctype, cdir), }, \
.desc = { .bEndpointAddress = addr | (dir ? USB_DIR_IN : 0), \
- .bmAttributes = type, \
+ .bmAttributes = USB_ENDPOINT_XFER_ ## type, \
.wMaxPacketSize = maxpkt, }, \
.dev = &memory \
}
-#define USB_EP_BULK(addr, bname, dir) \
- USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE)
-#define USB_EP_ISO(addr, bname, dir) \
- USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE)
-#define USB_EP_INT(addr, bname, dir) \
- USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE)
-#define USB_EP_IN_BULK(n) USB_EP_BULK(n, "ep" #n "in-bulk", 1)
-#define USB_EP_OUT_BULK(n) USB_EP_BULK(n, "ep" #n "out-bulk", 0)
-#define USB_EP_IN_ISO(n) USB_EP_ISO(n, "ep" #n "in-iso", 1)
-#define USB_EP_OUT_ISO(n) USB_EP_ISO(n, "ep" #n "out-iso", 0)
-#define USB_EP_IN_INT(n) USB_EP_INT(n, "ep" #n "in-int", 1)
-#define USB_EP_CTRL USB_EP_DEF(0, "ep0", 0, 0, EP0_FIFO_SIZE)
+#define USB_EP_BULK(addr, bname, dir, cdir) \
+ USB_EP_DEF(addr, bname, dir, BULK, BULK_FIFO_SIZE, \
+ USB_EP_CAPS_TYPE_BULK, cdir)
+#define USB_EP_ISO(addr, bname, dir, cdir) \
+ USB_EP_DEF(addr, bname, dir, ISOC, ISO_FIFO_SIZE, \
+ USB_EP_CAPS_TYPE_ISO, cdir)
+#define USB_EP_INT(addr, bname, dir, cdir) \
+ USB_EP_DEF(addr, bname, dir, INT, INT_FIFO_SIZE, \
+ USB_EP_CAPS_TYPE_INT, cdir)
+#define USB_EP_IN_BULK(n) USB_EP_BULK(n, "ep" #n "in-bulk", 1, \
+ USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_BULK(n) USB_EP_BULK(n, "ep" #n "out-bulk", 0, \
+ USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_ISO(n) USB_EP_ISO(n, "ep" #n "in-iso", 1, \
+ USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_ISO(n) USB_EP_ISO(n, "ep" #n "out-iso", 0, \
+ USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_INT(n) USB_EP_INT(n, "ep" #n "in-int", 1, \
+ USB_EP_CAPS_DIR_IN)
+#define USB_EP_CTRL USB_EP_DEF(0, "ep0", 0, CONTROL, EP0_FIFO_SIZE, \
+ USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)
#define PXA_EP_DEF(_idx, _addr, dir, _type, maxpkt, _config, iface, altset) \
{ \
diff --git a/kernel/drivers/usb/gadget/udc/r8a66597-udc.c b/kernel/drivers/usb/gadget/udc/r8a66597-udc.c
index 0293f7169..baa0609a4 100644
--- a/kernel/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/kernel/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1935,6 +1935,16 @@ static int r8a66597_probe(struct platform_device *pdev)
ep->ep.name = r8a66597_ep_name[i];
ep->ep.ops = &r8a66597_ep_ops;
usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+ if (i == 0) {
+ ep->ep.caps.type_control = true;
+ } else {
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
+ }
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
}
usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64);
r8a66597->ep[0].pipenum = 0;
diff --git a/kernel/drivers/usb/gadget/udc/s3c-hsudc.c b/kernel/drivers/usb/gadget/udc/s3c-hsudc.c
index 85a712a03..e9def42ce 100644
--- a/kernel/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/kernel/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1005,6 +1005,21 @@ static void s3c_hsudc_initep(struct s3c_hsudc *hsudc,
hsep->stopped = 0;
hsep->wedge = 0;
+ if (epnum == 0) {
+ hsep->ep.caps.type_control = true;
+ hsep->ep.caps.dir_in = true;
+ hsep->ep.caps.dir_out = true;
+ } else {
+ hsep->ep.caps.type_iso = true;
+ hsep->ep.caps.type_bulk = true;
+ hsep->ep.caps.type_int = true;
+ }
+
+ if (epnum & 1)
+ hsep->ep.caps.dir_in = true;
+ else
+ hsep->ep.caps.dir_out = true;
+
set_index(hsudc, epnum);
writel(hsep->ep.maxpacket, hsudc->regs + S3C_MPR);
}
diff --git a/kernel/drivers/usb/gadget/udc/s3c2410_udc.c b/kernel/drivers/usb/gadget/udc/s3c2410_udc.c
index 99fd9a566..eb3571ee5 100644
--- a/kernel/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/kernel/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -92,40 +92,38 @@ static struct s3c2410_udc_mach_info *udc_info;
static uint32_t s3c2410_ticks = 0;
-static int dprintk(int level, const char *fmt, ...)
+__printf(2, 3)
+static void dprintk(int level, const char *fmt, ...)
{
- static char printk_buf[1024];
static long prevticks;
static int invocation;
+ struct va_format vaf;
va_list args;
- int len;
if (level > USB_S3C2410_DEBUG_LEVEL)
- return 0;
+ return;
+
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
if (s3c2410_ticks != prevticks) {
prevticks = s3c2410_ticks;
invocation = 0;
}
- len = scnprintf(printk_buf,
- sizeof(printk_buf), "%1lu.%02d USB: ",
- prevticks, invocation++);
+ pr_debug("%1lu.%02d USB: %pV", prevticks, invocation++, &vaf);
- va_start(args, fmt);
- len = vscnprintf(printk_buf+len,
- sizeof(printk_buf)-len, fmt, args);
va_end(args);
-
- pr_debug("%s", printk_buf);
- return len;
}
#else
-static int dprintk(int level, const char *fmt, ...)
+__printf(2, 3)
+static void dprintk(int level, const char *fmt, ...)
{
- return 0;
}
#endif
+
static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p)
{
u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg;
@@ -1693,6 +1691,8 @@ static struct s3c2410_udc memory = {
.name = ep0name,
.ops = &s3c2410_ep_ops,
.maxpacket = EP0_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
},
@@ -1704,6 +1704,8 @@ static struct s3c2410_udc memory = {
.name = "ep1-bulk",
.ops = &s3c2410_ep_ops,
.maxpacket = EP_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
.fifo_size = EP_FIFO_SIZE,
@@ -1716,6 +1718,8 @@ static struct s3c2410_udc memory = {
.name = "ep2-bulk",
.ops = &s3c2410_ep_ops,
.maxpacket = EP_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
.fifo_size = EP_FIFO_SIZE,
@@ -1728,6 +1732,8 @@ static struct s3c2410_udc memory = {
.name = "ep3-bulk",
.ops = &s3c2410_ep_ops,
.maxpacket = EP_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
.fifo_size = EP_FIFO_SIZE,
@@ -1740,6 +1746,8 @@ static struct s3c2410_udc memory = {
.name = "ep4-bulk",
.ops = &s3c2410_ep_ops,
.maxpacket = EP_FIFO_SIZE,
+ .caps = USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+ USB_EP_CAPS_DIR_ALL),
},
.dev = &memory,
.fifo_size = EP_FIFO_SIZE,
diff --git a/kernel/drivers/usb/gadget/udc/udc-core.c b/kernel/drivers/usb/gadget/udc/udc-core.c
index 7d69931cf..f660afba7 100644
--- a/kernel/drivers/usb/gadget/udc/udc-core.c
+++ b/kernel/drivers/usb/gadget/udc/udc-core.c
@@ -60,13 +60,15 @@ static DEFINE_MUTEX(udc_lock);
int usb_gadget_map_request(struct usb_gadget *gadget,
struct usb_request *req, int is_in)
{
+ struct device *dev = gadget->dev.parent;
+
if (req->length == 0)
return 0;
if (req->num_sgs) {
int mapped;
- mapped = dma_map_sg(&gadget->dev, req->sg, req->num_sgs,
+ mapped = dma_map_sg(dev, req->sg, req->num_sgs,
is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
if (mapped == 0) {
dev_err(&gadget->dev, "failed to map SGs\n");
@@ -75,11 +77,11 @@ int usb_gadget_map_request(struct usb_gadget *gadget,
req->num_mapped_sgs = mapped;
} else {
- req->dma = dma_map_single(&gadget->dev, req->buf, req->length,
+ req->dma = dma_map_single(dev, req->buf, req->length,
is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- if (dma_mapping_error(&gadget->dev, req->dma)) {
- dev_err(&gadget->dev, "failed to map buffer\n");
+ if (dma_mapping_error(dev, req->dma)) {
+ dev_err(dev, "failed to map buffer\n");
return -EFAULT;
}
}
@@ -95,12 +97,12 @@ void usb_gadget_unmap_request(struct usb_gadget *gadget,
return;
if (req->num_mapped_sgs) {
- dma_unmap_sg(&gadget->dev, req->sg, req->num_mapped_sgs,
+ dma_unmap_sg(gadget->dev.parent, req->sg, req->num_mapped_sgs,
is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
req->num_mapped_sgs = 0;
} else {
- dma_unmap_single(&gadget->dev, req->dma, req->length,
+ dma_unmap_single(gadget->dev.parent, req->dma, req->length,
is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
}
}
@@ -129,6 +131,96 @@ EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
/* ------------------------------------------------------------------------- */
+/**
+ * gadget_find_ep_by_name - returns ep whose name is the same as sting passed
+ * in second parameter or NULL if searched endpoint not found
+ * @g: controller to check for quirk
+ * @name: name of searched endpoint
+ */
+struct usb_ep *gadget_find_ep_by_name(struct usb_gadget *g, const char *name)
+{
+ struct usb_ep *ep;
+
+ gadget_for_each_ep(ep, g) {
+ if (!strcmp(ep->name, name))
+ return ep;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(gadget_find_ep_by_name);
+
+/* ------------------------------------------------------------------------- */
+
+int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+ struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+ u8 type;
+ u16 max;
+ int num_req_streams = 0;
+
+ /* endpoint already claimed? */
+ if (ep->claimed)
+ return 0;
+
+ type = usb_endpoint_type(desc);
+ max = 0x7ff & usb_endpoint_maxp(desc);
+
+ if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+ return 0;
+ if (usb_endpoint_dir_out(desc) && !ep->caps.dir_out)
+ return 0;
+
+ if (max > ep->maxpacket_limit)
+ return 0;
+
+ /* "high bandwidth" works only at high speed */
+ if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+ return 0;
+
+ switch (type) {
+ case USB_ENDPOINT_XFER_CONTROL:
+ /* only support ep0 for portable CONTROL traffic */
+ return 0;
+ case USB_ENDPOINT_XFER_ISOC:
+ if (!ep->caps.type_iso)
+ return 0;
+ /* ISO: limit 1023 bytes full speed, 1024 high/super speed */
+ if (!gadget_is_dualspeed(gadget) && max > 1023)
+ return 0;
+ break;
+ case USB_ENDPOINT_XFER_BULK:
+ if (!ep->caps.type_bulk)
+ return 0;
+ if (ep_comp && gadget_is_superspeed(gadget)) {
+ /* Get the number of required streams from the
+ * EP companion descriptor and see if the EP
+ * matches it
+ */
+ num_req_streams = ep_comp->bmAttributes & 0x1f;
+ if (num_req_streams > ep->max_streams)
+ return 0;
+ }
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ /* Bulk endpoints handle interrupt transfers,
+ * except the toggle-quirky iso-synch kind
+ */
+ if (!ep->caps.type_int && !ep->caps.type_bulk)
+ return 0;
+ /* INT: limit 64 bytes full speed, 1024 high/super speed */
+ if (!gadget_is_dualspeed(gadget) && max > 64)
+ return 0;
+ break;
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc);
+
+/* ------------------------------------------------------------------------- */
+
static void usb_gadget_state_work(struct work_struct *work)
{
struct usb_gadget *gadget = work_to_gadget(work);
diff --git a/kernel/drivers/usb/gadget/udc/udc-xilinx.c b/kernel/drivers/usb/gadget/udc/udc-xilinx.c
index 1f2427447..1cbb0ac6b 100644
--- a/kernel/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/kernel/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1317,12 +1317,21 @@ static void xudc_eps_init(struct xusb_udc *udc)
snprintf(ep->name, EPNAME_SIZE, "ep%d", ep_number);
ep->ep_usb.name = ep->name;
ep->ep_usb.ops = &xusb_ep_ops;
+
+ ep->ep_usb.caps.type_iso = true;
+ ep->ep_usb.caps.type_bulk = true;
+ ep->ep_usb.caps.type_int = true;
} else {
ep->ep_usb.name = ep0name;
usb_ep_set_maxpacket_limit(&ep->ep_usb, EP0_MAX_PACKET);
ep->ep_usb.ops = &xusb_ep0_ops;
+
+ ep->ep_usb.caps.type_control = true;
}
+ ep->ep_usb.caps.dir_in = true;
+ ep->ep_usb.caps.dir_out = true;
+
ep->udc = udc;
ep->epnumber = ep_number;
ep->desc = NULL;
diff --git a/kernel/drivers/usb/host/Kconfig b/kernel/drivers/usb/host/Kconfig
index 197a6a3e6..3bb088701 100644
--- a/kernel/drivers/usb/host/Kconfig
+++ b/kernel/drivers/usb/host/Kconfig
@@ -32,7 +32,14 @@ config USB_XHCI_PCI
default y
config USB_XHCI_PLATFORM
- tristate
+ tristate "Generic xHCI driver for a platform device"
+ ---help---
+ Adds an xHCI host driver for a generic platform device, which
+ provides a memory space and an irq.
+ It is also a prerequisite for platform specific drivers that
+ implement some extra quirks.
+
+ If unsure, say N.
config USB_XHCI_MVEBU
tristate "xHCI support for Marvell Armada 375/38x"
@@ -137,7 +144,7 @@ config XPS_USB_HCD_XILINX
devices only.
config USB_EHCI_FSL
- bool "Support for Freescale PPC on-chip EHCI USB controller"
+ tristate "Support for Freescale PPC on-chip EHCI USB controller"
depends on FSL_SOC
select USB_EHCI_ROOT_HUB_TT
select USB_FSL_MPH_DR_OF if OF
@@ -295,7 +302,7 @@ config USB_OCTEON_EHCI
bool "Octeon on-chip EHCI support (DEPRECATED)"
depends on CAVIUM_OCTEON_SOC
default n
- select USB_EHCI_BIG_ENDIAN_MMIO
+ select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select USB_EHCI_HCD_PLATFORM
help
This option is deprecated now and the driver was removed, use
@@ -341,16 +348,6 @@ config USB_ISP1362_HCD
To compile this driver as a module, choose M here: the
module will be called isp1362-hcd.
-config USB_FUSBH200_HCD
- tristate "FUSBH200 HCD support"
- depends on USB
- ---help---
- Faraday FUSBH200 is designed to meet USB2.0 EHCI specification
- with minor modification.
-
- To compile this driver as a module, choose M here: the
- module will be called fusbh200-hcd.
-
config USB_FOTG210_HCD
tristate "FOTG210 HCD support"
depends on USB
@@ -441,10 +438,10 @@ config USB_OHCI_HCD_PXA27X
PXA27x/PXA3xx chips.
config USB_OHCI_HCD_AT91
- tristate "Support for Atmel on-chip OHCI USB controller"
- depends on USB_OHCI_HCD && ARCH_AT91
- default y
- ---help---
+ tristate "Support for Atmel on-chip OHCI USB controller"
+ depends on USB_OHCI_HCD && ARCH_AT91 && OF
+ default y
+ ---help---
Enables support for the on-chip OHCI controller on
Atmel chips.
@@ -568,7 +565,7 @@ config USB_OCTEON_OHCI
bool "Octeon on-chip OHCI support (DEPRECATED)"
depends on CAVIUM_OCTEON_SOC
default USB_OCTEON_EHCI
- select USB_OHCI_BIG_ENDIAN_MMIO
+ select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
select USB_OHCI_LITTLE_ENDIAN
select USB_OHCI_HCD_PLATFORM
help
diff --git a/kernel/drivers/usb/host/Makefile b/kernel/drivers/usb/host/Makefile
index 65b0b6a58..e7558abc9 100644
--- a/kernel/drivers/usb/host/Makefile
+++ b/kernel/drivers/usb/host/Makefile
@@ -24,10 +24,9 @@ endif
obj-$(CONFIG_USB_WHCI_HCD) += whci/
-obj-$(CONFIG_PCI) += pci-quirks.o
-
-obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
-obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o
+ifneq ($(CONFIG_USB), )
+ obj-$(CONFIG_PCI) += pci-quirks.o
+endif
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
@@ -63,6 +62,8 @@ obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o
obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o
obj-$(CONFIG_USB_FHCI_HCD) += fhci.o
obj-$(CONFIG_USB_XHCI_HCD) += xhci-hcd.o
+obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
+obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o
@@ -70,8 +71,8 @@ obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o
obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o
obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o
obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o
+obj-$(CONFIG_USB_EHCI_FSL) += ehci-fsl.o
obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o
obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o
-obj-$(CONFIG_USB_FUSBH200_HCD) += fusbh200-hcd.o
obj-$(CONFIG_USB_FOTG210_HCD) += fotg210-hcd.o
obj-$(CONFIG_USB_MAX3421_HCD) += max3421-hcd.o
diff --git a/kernel/drivers/usb/host/bcma-hcd.c b/kernel/drivers/usb/host/bcma-hcd.c
index 526cfab41..5398e3d42 100644
--- a/kernel/drivers/usb/host/bcma-hcd.c
+++ b/kernel/drivers/usb/host/bcma-hcd.c
@@ -2,7 +2,8 @@
* Broadcom specific Advanced Microcontroller Bus
* Broadcom USB-core driver (BCMA bus glue)
*
- * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2011-2015 Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2015 Felix Fietkau <nbd@openwrt.org>
*
* Based on ssb-ohci driver
* Copyright 2007 Michael Buesch <m@bues.ch>
@@ -23,6 +24,8 @@
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
#include <linux/usb/ehci_pdriver.h>
#include <linux/usb/ohci_pdriver.h>
@@ -88,7 +91,7 @@ static void bcma_hcd_4716wa(struct bcma_device *dev)
}
/* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */
-static void bcma_hcd_init_chip(struct bcma_device *dev)
+static void bcma_hcd_init_chip_mips(struct bcma_device *dev)
{
u32 tmp;
@@ -159,6 +162,87 @@ static void bcma_hcd_init_chip(struct bcma_device *dev)
}
}
+static void bcma_hcd_init_chip_arm_phy(struct bcma_device *dev)
+{
+ struct bcma_device *arm_core;
+ void __iomem *dmu;
+
+ arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9);
+ if (!arm_core) {
+ dev_err(&dev->dev, "can not find ARM Cortex A9 ihost core\n");
+ return;
+ }
+
+ dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000);
+ if (!dmu) {
+ dev_err(&dev->dev, "can not map ARM Cortex A9 ihost core\n");
+ return;
+ }
+
+ /* Unlock DMU PLL settings */
+ iowrite32(0x0000ea68, dmu + 0x180);
+
+ /* Write USB 2.0 PLL control setting */
+ iowrite32(0x00dd10c3, dmu + 0x164);
+
+ /* Lock DMU PLL settings */
+ iowrite32(0x00000000, dmu + 0x180);
+
+ iounmap(dmu);
+}
+
+static void bcma_hcd_init_chip_arm_hc(struct bcma_device *dev)
+{
+ u32 val;
+
+ /*
+ * Delay after PHY initialized to ensure HC is ready to be configured
+ */
+ usleep_range(1000, 2000);
+
+ /* Set packet buffer OUT threshold */
+ val = bcma_read32(dev, 0x94);
+ val &= 0xffff;
+ val |= 0x80 << 16;
+ bcma_write32(dev, 0x94, val);
+
+ /* Enable break memory transfer */
+ val = bcma_read32(dev, 0x9c);
+ val |= 1;
+ bcma_write32(dev, 0x9c, val);
+}
+
+static void bcma_hcd_init_chip_arm(struct bcma_device *dev)
+{
+ bcma_core_enable(dev, 0);
+
+ if (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4707 ||
+ dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM53018) {
+ if (dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4707 ||
+ dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4708)
+ bcma_hcd_init_chip_arm_phy(dev);
+
+ bcma_hcd_init_chip_arm_hc(dev);
+ }
+}
+
+static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val)
+{
+ int gpio;
+
+ gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0);
+ if (!gpio_is_valid(gpio))
+ return;
+
+ if (val) {
+ gpio_request(gpio, "bcma-hcd-gpio");
+ gpio_set_value(gpio, 1);
+ } else {
+ gpio_set_value(gpio, 0);
+ gpio_free(gpio);
+ }
+}
+
static const struct usb_ehci_pdata ehci_pdata = {
};
@@ -169,7 +253,7 @@ static struct platform_device *bcma_hcd_create_pdev(struct bcma_device *dev, boo
{
struct platform_device *hci_dev;
struct resource hci_res[2];
- int ret = -ENOMEM;
+ int ret;
memset(hci_res, 0, sizeof(hci_res));
@@ -183,7 +267,7 @@ static struct platform_device *bcma_hcd_create_pdev(struct bcma_device *dev, boo
hci_dev = platform_device_alloc(ohci ? "ohci-platform" :
"ehci-platform" , 0);
if (!hci_dev)
- return NULL;
+ return ERR_PTR(-ENOMEM);
hci_dev->dev.parent = &dev->dev;
hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
@@ -214,39 +298,45 @@ err_alloc:
static int bcma_hcd_probe(struct bcma_device *dev)
{
int err;
- u16 chipid_top;
u32 ohci_addr;
struct bcma_hcd_device *usb_dev;
struct bcma_chipinfo *chipinfo;
chipinfo = &dev->bus->chipinfo;
- /* USBcores are only connected on embedded devices. */
- chipid_top = (chipinfo->id & 0xFF00);
- if (chipid_top != 0x4700 && chipid_top != 0x5300)
- return -ENODEV;
/* TODO: Probably need checks here; is the core connected? */
if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
return -EOPNOTSUPP;
- usb_dev = kzalloc(sizeof(struct bcma_hcd_device), GFP_KERNEL);
+ usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device),
+ GFP_KERNEL);
if (!usb_dev)
return -ENOMEM;
- bcma_hcd_init_chip(dev);
+ bcma_hci_platform_power_gpio(dev, true);
+
+ switch (dev->id.id) {
+ case BCMA_CORE_NS_USB20:
+ bcma_hcd_init_chip_arm(dev);
+ break;
+ case BCMA_CORE_USB20_HOST:
+ bcma_hcd_init_chip_mips(dev);
+ break;
+ default:
+ return -ENODEV;
+ }
/* In AI chips EHCI is addrspace 0, OHCI is 1 */
ohci_addr = dev->addr_s[0];
- if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749)
+ if ((chipinfo->id == BCMA_CHIP_ID_BCM5357 ||
+ chipinfo->id == BCMA_CHIP_ID_BCM4749)
&& chipinfo->rev == 0)
ohci_addr = 0x18009000;
usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr);
- if (IS_ERR(usb_dev->ohci_dev)) {
- err = PTR_ERR(usb_dev->ohci_dev);
- goto err_free_usb_dev;
- }
+ if (IS_ERR(usb_dev->ohci_dev))
+ return PTR_ERR(usb_dev->ohci_dev);
usb_dev->ehci_dev = bcma_hcd_create_pdev(dev, false, dev->addr);
if (IS_ERR(usb_dev->ehci_dev)) {
@@ -259,8 +349,6 @@ static int bcma_hcd_probe(struct bcma_device *dev)
err_unregister_ohci_dev:
platform_device_unregister(usb_dev->ohci_dev);
-err_free_usb_dev:
- kfree(usb_dev);
return err;
}
@@ -280,6 +368,7 @@ static void bcma_hcd_remove(struct bcma_device *dev)
static void bcma_hcd_shutdown(struct bcma_device *dev)
{
+ bcma_hci_platform_power_gpio(dev, false);
bcma_core_disable(dev, 0);
}
@@ -287,6 +376,7 @@ static void bcma_hcd_shutdown(struct bcma_device *dev)
static int bcma_hcd_suspend(struct bcma_device *dev)
{
+ bcma_hci_platform_power_gpio(dev, false);
bcma_core_disable(dev, 0);
return 0;
@@ -294,6 +384,7 @@ static int bcma_hcd_suspend(struct bcma_device *dev)
static int bcma_hcd_resume(struct bcma_device *dev)
{
+ bcma_hci_platform_power_gpio(dev, true);
bcma_core_enable(dev, 0);
return 0;
@@ -306,6 +397,7 @@ static int bcma_hcd_resume(struct bcma_device *dev)
static const struct bcma_device_id bcma_hcd_table[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS),
+ BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS),
{},
};
MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);
diff --git a/kernel/drivers/usb/host/ehci-dbg.c b/kernel/drivers/usb/host/ehci-dbg.c
index 524cbf26d..b26b96e25 100644
--- a/kernel/drivers/usb/host/ehci-dbg.c
+++ b/kernel/drivers/usb/host/ehci-dbg.c
@@ -628,7 +628,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
unsigned i;
__hc32 tag;
- if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
+ seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC);
+ if (!seen)
return 0;
seen_count = 0;
diff --git a/kernel/drivers/usb/host/ehci-fsl.c b/kernel/drivers/usb/host/ehci-fsl.c
index ab4eee3df..3b6eb219d 100644
--- a/kernel/drivers/usb/host/ehci-fsl.c
+++ b/kernel/drivers/usb/host/ehci-fsl.c
@@ -1,6 +1,6 @@
/*
* Copyright 2005-2009 MontaVista Software, Inc.
- * Copyright 2008,2012 Freescale Semiconductor, Inc.
+ * Copyright 2008,2012,2015 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -24,29 +24,38 @@
*/
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/err.h>
+#include <linux/usb.h>
+#include <linux/usb/ehci_def.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
+#include "ehci.h"
#include "ehci-fsl.h"
+#define DRIVER_DESC "Freescale EHCI Host controller driver"
+#define DRV_NAME "ehci-fsl"
+
+static struct hc_driver __read_mostly fsl_ehci_hc_driver;
+
/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */
-/**
- * usb_hcd_fsl_probe - initialize FSL-based HCDs
- * @drvier: Driver to be used for this HCD
+/*
+ * fsl_ehci_drv_probe - initialize FSL-based HCDs
* @pdev: USB Host Controller being probed
* Context: !in_interrupt()
*
* Allocates basic resources for this USB host controller.
*
*/
-static int usb_hcd_fsl_probe(const struct hc_driver *driver,
- struct platform_device *pdev)
+static int fsl_ehci_drv_probe(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata;
struct usb_hcd *hcd;
@@ -86,7 +95,8 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
}
irq = res->start;
- hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+ hcd = usb_create_hcd(&fsl_ehci_hc_driver, &pdev->dev,
+ dev_name(&pdev->dev));
if (!hcd) {
retval = -ENOMEM;
goto err1;
@@ -117,7 +127,18 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
/* Enable USB controller, 83xx or 8536 */
if (pdata->have_sysif_regs && pdata->controller_ver < FSL_USB_VER_1_6)
- setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4);
+ clrsetbits_be32(hcd->regs + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK, 0x4);
+
+ /*
+ * Enable UTMI phy and program PTS field in UTMI mode before asserting
+ * controller reset for USB Controller version 2.5
+ */
+ if (pdata->has_fsl_erratum_a007792) {
+ clrsetbits_be32(hcd->regs + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK, CTRL_UTMI_PHY_EN);
+ writel(PORT_PTS_UTMI, hcd->regs + FSL_SOC_USB_PORTSC1);
+ }
/* Don't need to set host mode here. It will be done by tdi_reset() */
@@ -159,38 +180,6 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
return retval;
}
-/* may be called without controller electrically present */
-/* may be called with controller, bus, and devices active */
-
-/**
- * usb_hcd_fsl_remove - shutdown processing for FSL-based HCDs
- * @dev: USB Host Controller being removed
- * Context: !in_interrupt()
- *
- * Reverses the effect of usb_hcd_fsl_probe().
- *
- */
-static void usb_hcd_fsl_remove(struct usb_hcd *hcd,
- struct platform_device *pdev)
-{
- struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
-
- if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
- otg_set_host(hcd->usb_phy->otg, NULL);
- usb_put_phy(hcd->usb_phy);
- }
-
- usb_remove_hcd(hcd);
-
- /*
- * do platform specific un-initialization:
- * release iomux pins, disable clock, etc.
- */
- if (pdata->exit)
- pdata->exit(pdev);
- usb_put_hcd(hcd);
-}
-
static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
enum fsl_usb2_phy_modes phy_mode,
unsigned int port_offset)
@@ -213,9 +202,11 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
case FSL_USB2_PHY_ULPI:
if (pdata->have_sysif_regs && pdata->controller_ver) {
/* controller version 1.6 or above */
- clrbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN);
- setbits32(non_ehci + FSL_SOC_USB_CTRL,
- ULPI_PHY_CLK_SEL | USB_CTRL_USB_EN);
+ clrbits32(non_ehci + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK | UTMI_PHY_EN);
+ clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK,
+ ULPI_PHY_CLK_SEL | USB_CTRL_USB_EN);
}
portsc |= PORT_PTS_ULPI;
break;
@@ -226,30 +217,33 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
portsc |= PORT_PTS_PTW;
/* fall through */
case FSL_USB2_PHY_UTMI:
+ case FSL_USB2_PHY_UTMI_DUAL:
if (pdata->have_sysif_regs && pdata->controller_ver) {
/* controller version 1.6 or above */
- setbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN);
+ clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK, UTMI_PHY_EN);
mdelay(FSL_UTMI_PHY_DLY); /* Delay for UTMI PHY CLK to
become stable - 10ms*/
}
/* enable UTMI PHY */
if (pdata->have_sysif_regs)
- setbits32(non_ehci + FSL_SOC_USB_CTRL,
- CTRL_UTMI_PHY_EN);
+ clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK,
+ CTRL_UTMI_PHY_EN);
portsc |= PORT_PTS_UTMI;
break;
case FSL_USB2_PHY_NONE:
break;
}
- if (pdata->have_sysif_regs &&
- pdata->controller_ver > FSL_USB_VER_1_6 &&
- (phy_mode == FSL_USB2_PHY_ULPI)) {
- /* check PHY_CLK_VALID to get phy clk valid */
- if (!(spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
- PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0) ||
- in_be32(non_ehci + FSL_SOC_USB_PRICTRL))) {
- dev_warn(hcd->self.controller, "USB PHY clock invalid\n");
+ /*
+ * check PHY_CLK_VALID to determine phy clock presence before writing
+ * to portsc
+ */
+ if (pdata->check_phy_clk_valid) {
+ if (!(in_be32(non_ehci + FSL_SOC_USB_CTRL) & PHY_CLK_VALID)) {
+ dev_warn(hcd->self.controller,
+ "USB PHY clock invalid\n");
return -EINVAL;
}
}
@@ -257,7 +251,8 @@ static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]);
if (phy_mode != FSL_USB2_PHY_ULPI && pdata->have_sysif_regs)
- setbits32(non_ehci + FSL_SOC_USB_CTRL, USB_CTRL_USB_EN);
+ clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
+ CONTROL_REGISTER_W1C_MASK, USB_CTRL_USB_EN);
return 0;
}
@@ -283,6 +278,10 @@ static int ehci_fsl_usb_setup(struct ehci_hcd *ehci)
out_be32(non_ehci + FSL_SOC_USB_SNOOP2, 0x80000000 | SNOOP_SIZE_2GB);
}
+ /* Deal with USB erratum A-005275 */
+ if (pdata->has_fsl_erratum_a005275 == 1)
+ ehci->has_fsl_hs_errata = 1;
+
if ((pdata->operating_mode == FSL_USB2_DR_HOST) ||
(pdata->operating_mode == FSL_USB2_DR_OTG))
if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
@@ -636,79 +635,77 @@ static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port)
#define ehci_start_port_reset NULL
#endif /* CONFIG_USB_OTG */
+static struct ehci_driver_overrides ehci_fsl_overrides __initdata = {
+ .extra_priv_size = sizeof(struct ehci_fsl),
+ .reset = ehci_fsl_setup,
+};
-static const struct hc_driver ehci_fsl_hc_driver = {
- .description = hcd_name,
- .product_desc = "Freescale On-Chip EHCI Host Controller",
- .hcd_priv_size = sizeof(struct ehci_fsl),
+/**
+ * fsl_ehci_drv_remove - shutdown processing for FSL-based HCDs
+ * @dev: USB Host Controller being removed
+ * Context: !in_interrupt()
+ *
+ * Reverses the effect of usb_hcd_fsl_probe().
+ *
+ */
- /*
- * generic hardware linkage
- */
- .irq = ehci_irq,
- .flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
+static int fsl_ehci_drv_remove(struct platform_device *pdev)
+{
+ struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
- /*
- * basic lifecycle operations
- */
- .reset = ehci_fsl_setup,
- .start = ehci_run,
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
+ if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
+ otg_set_host(hcd->usb_phy->otg, NULL);
+ usb_put_phy(hcd->usb_phy);
+ }
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
+ usb_remove_hcd(hcd);
/*
- * scheduling support
+ * do platform specific un-initialization:
+ * release iomux pins, disable clock, etc.
*/
- .get_frame_number = ehci_get_frame,
+ if (pdata->exit)
+ pdata->exit(pdev);
+ usb_put_hcd(hcd);
- /*
- * root hub support
- */
- .hub_status_data = ehci_hub_status_data,
- .hub_control = ehci_hub_control,
- .bus_suspend = ehci_bus_suspend,
- .bus_resume = ehci_bus_resume,
- .start_port_reset = ehci_start_port_reset,
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+ return 0;
+}
+
+static struct platform_driver ehci_fsl_driver = {
+ .probe = fsl_ehci_drv_probe,
+ .remove = fsl_ehci_drv_remove,
+ .shutdown = usb_hcd_platform_shutdown,
+ .driver = {
+ .name = "fsl-ehci",
+ .pm = EHCI_FSL_PM_OPS,
+ },
};
-static int ehci_fsl_drv_probe(struct platform_device *pdev)
+static int __init ehci_fsl_init(void)
{
if (usb_disabled())
return -ENODEV;
- /* FIXME we only want one one probe() not two */
- return usb_hcd_fsl_probe(&ehci_fsl_hc_driver, pdev);
-}
+ pr_info(DRV_NAME ": " DRIVER_DESC "\n");
-static int ehci_fsl_drv_remove(struct platform_device *pdev)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
+ ehci_init_driver(&fsl_ehci_hc_driver, &ehci_fsl_overrides);
- /* FIXME we only want one one remove() not two */
- usb_hcd_fsl_remove(hcd, pdev);
- return 0;
+ fsl_ehci_hc_driver.product_desc =
+ "Freescale On-Chip EHCI Host Controller";
+ fsl_ehci_hc_driver.start_port_reset = ehci_start_port_reset;
+
+
+ return platform_driver_register(&ehci_fsl_driver);
}
+module_init(ehci_fsl_init);
-MODULE_ALIAS("platform:fsl-ehci");
+static void __exit ehci_fsl_cleanup(void)
+{
+ platform_driver_unregister(&ehci_fsl_driver);
+}
+module_exit(ehci_fsl_cleanup);
-static struct platform_driver ehci_fsl_driver = {
- .probe = ehci_fsl_drv_probe,
- .remove = ehci_fsl_drv_remove,
- .shutdown = usb_hcd_platform_shutdown,
- .driver = {
- .name = "fsl-ehci",
- .pm = EHCI_FSL_PM_OPS,
- },
-};
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/kernel/drivers/usb/host/ehci-fsl.h b/kernel/drivers/usb/host/ehci-fsl.h
index dbd292e9f..1a8a60a57 100644
--- a/kernel/drivers/usb/host/ehci-fsl.h
+++ b/kernel/drivers/usb/host/ehci-fsl.h
@@ -52,6 +52,7 @@
#define SNOOP_SIZE_2GB 0x1e
/* control Register Bit Masks */
+#define CONTROL_REGISTER_W1C_MASK 0x00020000 /* W1C: PHY_CLK_VALID */
#define ULPI_INT_EN (1<<0)
#define WU_INT_EN (1<<1)
#define USB_CTRL_USB_EN (1<<2)
diff --git a/kernel/drivers/usb/host/ehci-hcd.c b/kernel/drivers/usb/host/ehci-hcd.c
index f4d88dfb2..48c92bf78 100644
--- a/kernel/drivers/usb/host/ehci-hcd.c
+++ b/kernel/drivers/usb/host/ehci-hcd.c
@@ -239,7 +239,7 @@ static void tdi_reset (struct ehci_hcd *ehci)
* Reset a non-running (STS_HALT == 1) controller.
* Must be called with interrupts enabled and the lock not held.
*/
-static int ehci_reset (struct ehci_hcd *ehci)
+int ehci_reset(struct ehci_hcd *ehci)
{
int retval;
u32 command = ehci_readl(ehci, &ehci->regs->command);
@@ -275,6 +275,7 @@ static int ehci_reset (struct ehci_hcd *ehci)
ehci->resuming_ports = 0;
return retval;
}
+EXPORT_SYMBOL_GPL(ehci_reset);
/*
* Idle the controller (turn off the schedules).
@@ -588,7 +589,7 @@ static int ehci_run (struct usb_hcd *hcd)
* streaming mappings for I/O buffers, like pci_map_single(),
* can return segments above 4GB, if the device allows.
*
- * NOTE: the dma mask is visible through dma_supported(), so
+ * NOTE: the dma mask is visible through dev->dma_mask, so
* drivers can pass this info along ... like NETIF_F_HIGHDMA,
* Scsi_Host.highmem_io, and so forth. It's readonly to all
* host side drivers though.
@@ -1250,11 +1251,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR (DRIVER_AUTHOR);
MODULE_LICENSE ("GPL");
-#ifdef CONFIG_USB_EHCI_FSL
-#include "ehci-fsl.c"
-#define PLATFORM_DRIVER ehci_fsl_driver
-#endif
-
#ifdef CONFIG_USB_EHCI_SH
#include "ehci-sh.c"
#define PLATFORM_DRIVER ehci_hcd_sh_driver
diff --git a/kernel/drivers/usb/host/ehci-hub.c b/kernel/drivers/usb/host/ehci-hub.c
index 69208447d..086a7115d 100644
--- a/kernel/drivers/usb/host/ehci-hub.c
+++ b/kernel/drivers/usb/host/ehci-hub.c
@@ -155,7 +155,7 @@ static int ehci_port_change(struct ehci_hcd *ehci)
return 0;
}
-static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
+void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
bool suspending, bool do_wakeup)
{
int port;
@@ -220,6 +220,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
spin_unlock_irq(&ehci->lock);
}
+EXPORT_SYMBOL_GPL(ehci_adjust_port_wakeup_flags);
static int ehci_bus_suspend (struct usb_hcd *hcd)
{
@@ -1220,6 +1221,13 @@ int ehci_hub_control(
*/
ehci->reset_done [wIndex] = jiffies
+ msecs_to_jiffies (50);
+
+ /*
+ * Force full-speed connect for FSL high-speed
+ * erratum; disable HS Chirp by setting PFSC bit
+ */
+ if (ehci_has_fsl_hs_errata(ehci))
+ temp |= (1 << PORTSC_FSL_PFSC);
}
ehci_writel(ehci, temp, status_reg);
break;
diff --git a/kernel/drivers/usb/host/ehci-msm.c b/kernel/drivers/usb/host/ehci-msm.c
index 275c92e53..c4f84c81d 100644
--- a/kernel/drivers/usb/host/ehci-msm.c
+++ b/kernel/drivers/usb/host/ehci-msm.c
@@ -80,12 +80,12 @@ static int ehci_msm_probe(struct platform_device *pdev)
return -ENOMEM;
}
- hcd->irq = platform_get_irq(pdev, 0);
- if (hcd->irq < 0) {
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
dev_err(&pdev->dev, "Unable to get IRQ resource\n");
- ret = hcd->irq;
goto put_hcd;
}
+ hcd->irq = ret;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
diff --git a/kernel/drivers/usb/host/ehci-orion.c b/kernel/drivers/usb/host/ehci-orion.c
index bfcbb9aa8..ee8d5faa0 100644
--- a/kernel/drivers/usb/host/ehci-orion.c
+++ b/kernel/drivers/usb/host/ehci-orion.c
@@ -224,7 +224,8 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
priv->phy = devm_phy_optional_get(&pdev->dev, "usb");
if (IS_ERR(priv->phy)) {
err = PTR_ERR(priv->phy);
- goto err_phy_get;
+ if (err != -ENOSYS)
+ goto err_phy_get;
} else {
err = phy_init(priv->phy);
if (err)
diff --git a/kernel/drivers/usb/host/ehci-platform.c b/kernel/drivers/usb/host/ehci-platform.c
index d8a75a51d..bd7082f29 100644
--- a/kernel/drivers/usb/host/ehci-platform.c
+++ b/kernel/drivers/usb/host/ehci-platform.c
@@ -19,6 +19,7 @@
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
@@ -45,6 +46,7 @@ struct ehci_platform_priv {
struct reset_control *rst;
struct phy **phys;
int num_phys;
+ bool reset_on_resume;
};
static const char hcd_name[] = "ehci-platform";
@@ -56,7 +58,6 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int retval;
- hcd->has_tt = pdata->has_tt;
ehci->has_synopsys_hc_bug = pdata->has_synopsys_hc_bug;
if (pdata->pre_setup) {
@@ -88,15 +89,13 @@ static int ehci_platform_power_on(struct platform_device *dev)
}
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- if (priv->phys[phy_num]) {
- ret = phy_init(priv->phys[phy_num]);
- if (ret)
- goto err_exit_phy;
- ret = phy_power_on(priv->phys[phy_num]);
- if (ret) {
- phy_exit(priv->phys[phy_num]);
- goto err_exit_phy;
- }
+ ret = phy_init(priv->phys[phy_num]);
+ if (ret)
+ goto err_exit_phy;
+ ret = phy_power_on(priv->phys[phy_num]);
+ if (ret) {
+ phy_exit(priv->phys[phy_num]);
+ goto err_exit_phy;
}
}
@@ -104,10 +103,8 @@ static int ehci_platform_power_on(struct platform_device *dev)
err_exit_phy:
while (--phy_num >= 0) {
- if (priv->phys[phy_num]) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
+ phy_power_off(priv->phys[phy_num]);
+ phy_exit(priv->phys[phy_num]);
}
err_disable_clks:
while (--clk >= 0)
@@ -123,10 +120,8 @@ static void ehci_platform_power_off(struct platform_device *dev)
int clk, phy_num;
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- if (priv->phys[phy_num]) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
+ phy_power_off(priv->phys[phy_num]);
+ phy_exit(priv->phys[phy_num]);
}
for (clk = EHCI_MAX_CLKS - 1; clk >= 0; clk--)
@@ -154,7 +149,6 @@ static int ehci_platform_probe(struct platform_device *dev)
struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
struct ehci_platform_priv *priv;
struct ehci_hcd *ehci;
- const char *phy_name;
int err, irq, phy_num, clk = 0;
if (usb_disabled())
@@ -169,8 +163,10 @@ static int ehci_platform_probe(struct platform_device *dev)
err = dma_coerce_mask_and_coherent(&dev->dev,
pdata->dma_mask_64 ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32));
- if (err)
+ if (err) {
+ dev_err(&dev->dev, "Error: DMA mask configuration failed\n");
return err;
+ }
irq = platform_get_irq(dev, 0);
if (irq < 0) {
@@ -200,40 +196,30 @@ static int ehci_platform_probe(struct platform_device *dev)
if (of_property_read_bool(dev->dev.of_node,
"needs-reset-on-resume"))
- pdata->reset_on_resume = 1;
+ priv->reset_on_resume = true;
+
+ if (of_property_read_bool(dev->dev.of_node,
+ "has-transaction-translator"))
+ hcd->has_tt = 1;
priv->num_phys = of_count_phandle_with_args(dev->dev.of_node,
"phys", "#phy-cells");
- priv->num_phys = priv->num_phys > 0 ? priv->num_phys : 1;
- priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
- sizeof(struct phy *), GFP_KERNEL);
- if (!priv->phys)
- return -ENOMEM;
+ if (priv->num_phys > 0) {
+ priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
+ sizeof(struct phy *), GFP_KERNEL);
+ if (!priv->phys)
+ return -ENOMEM;
+ } else
+ priv->num_phys = 0;
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- err = of_property_read_string_index(
- dev->dev.of_node,
- "phy-names", phy_num,
- &phy_name);
-
- if (err < 0) {
- if (priv->num_phys > 1) {
- dev_err(&dev->dev, "phy-names not provided");
- goto err_put_hcd;
- } else
- phy_name = "usb";
- }
-
- priv->phys[phy_num] = devm_phy_get(&dev->dev,
- phy_name);
- if (IS_ERR(priv->phys[phy_num])) {
- err = PTR_ERR(priv->phys[phy_num]);
- if ((priv->num_phys > 1) ||
- (err == -EPROBE_DEFER))
- goto err_put_hcd;
- priv->phys[phy_num] = NULL;
- }
+ priv->phys[phy_num] = devm_of_phy_get_by_index(
+ &dev->dev, dev->dev.of_node, phy_num);
+ if (IS_ERR(priv->phys[phy_num])) {
+ err = PTR_ERR(priv->phys[phy_num]);
+ goto err_put_hcd;
+ }
}
for (clk = 0; clk < EHCI_MAX_CLKS; clk++) {
@@ -264,6 +250,10 @@ static int ehci_platform_probe(struct platform_device *dev)
ehci->big_endian_desc = 1;
if (pdata->big_endian_mmio)
ehci->big_endian_mmio = 1;
+ if (pdata->has_tt)
+ hcd->has_tt = 1;
+ if (pdata->reset_on_resume)
+ priv->reset_on_resume = true;
#ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO
if (ehci->big_endian_mmio) {
@@ -376,6 +366,7 @@ static int ehci_platform_resume(struct device *dev)
struct usb_ehci_pdata *pdata = dev_get_platdata(dev);
struct platform_device *pdev =
container_of(dev, struct platform_device, dev);
+ struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd);
if (pdata->power_on) {
int err = pdata->power_on(pdev);
@@ -383,7 +374,7 @@ static int ehci_platform_resume(struct device *dev)
return err;
}
- ehci_resume(hcd, pdata->reset_on_resume);
+ ehci_resume(hcd, priv->reset_on_resume);
return 0;
}
#endif /* CONFIG_PM_SLEEP */
@@ -397,6 +388,12 @@ static const struct of_device_id vt8500_ehci_ids[] = {
};
MODULE_DEVICE_TABLE(of, vt8500_ehci_ids);
+static const struct acpi_device_id ehci_acpi_match[] = {
+ { "PNP0D20", 0 }, /* EHCI controller without debug */
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, ehci_acpi_match);
+
static const struct platform_device_id ehci_platform_table[] = {
{ "ehci-platform", 0 },
{ }
@@ -415,6 +412,7 @@ static struct platform_driver ehci_platform_driver = {
.name = "ehci-platform",
.pm = &ehci_platform_pm_ops,
.of_match_table = vt8500_ehci_ids,
+ .acpi_match_table = ACPI_PTR(ehci_acpi_match),
}
};
diff --git a/kernel/drivers/usb/host/ehci-spear.c b/kernel/drivers/usb/host/ehci-spear.c
index 34e14746b..3c4e52539 100644
--- a/kernel/drivers/usb/host/ehci-spear.c
+++ b/kernel/drivers/usb/host/ehci-spear.c
@@ -149,6 +149,7 @@ static const struct of_device_id spear_ehci_id_table[] = {
{ .compatible = "st,spear600-ehci", },
{ },
};
+MODULE_DEVICE_TABLE(of, spear_ehci_id_table);
static struct platform_driver spear_ehci_hcd_driver = {
.probe = spear_ehci_hcd_drv_probe,
diff --git a/kernel/drivers/usb/host/ehci-st.c b/kernel/drivers/usb/host/ehci-st.c
index 7e4bd39cf..b7c5cfa37 100644
--- a/kernel/drivers/usb/host/ehci-st.c
+++ b/kernel/drivers/usb/host/ehci-st.c
@@ -54,7 +54,6 @@ static int st_ehci_platform_reset(struct usb_hcd *hcd)
struct platform_device *pdev = to_platform_device(hcd->self.controller);
struct usb_ehci_pdata *pdata = dev_get_platdata(&pdev->dev);
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
- int retval;
u32 threshold;
/* Set EHCI packet buffer IN/OUT threshold to 128 bytes */
@@ -62,11 +61,7 @@ static int st_ehci_platform_reset(struct usb_hcd *hcd)
writel(threshold, hcd->regs + AHB2STBUS_INSREG01);
ehci->caps = hcd->regs + pdata->caps_offset;
- retval = ehci_setup(hcd);
- if (retval)
- return retval;
-
- return 0;
+ return ehci_setup(hcd);
}
static int st_ehci_platform_power_on(struct platform_device *dev)
diff --git a/kernel/drivers/usb/host/ehci-tegra.c b/kernel/drivers/usb/host/ehci-tegra.c
index ff9af29b4..4031b3720 100644
--- a/kernel/drivers/usb/host/ehci-tegra.c
+++ b/kernel/drivers/usb/host/ehci-tegra.c
@@ -304,6 +304,7 @@ struct dma_aligned_buffer {
static void free_dma_aligned_buffer(struct urb *urb)
{
struct dma_aligned_buffer *temp;
+ size_t length;
if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER))
return;
@@ -311,9 +312,14 @@ static void free_dma_aligned_buffer(struct urb *urb)
temp = container_of(urb->transfer_buffer,
struct dma_aligned_buffer, data);
- if (usb_urb_dir_in(urb))
- memcpy(temp->old_xfer_buffer, temp->data,
- urb->transfer_buffer_length);
+ if (usb_urb_dir_in(urb)) {
+ if (usb_pipeisoc(urb->pipe))
+ length = urb->transfer_buffer_length;
+ else
+ length = urb->actual_length;
+
+ memcpy(temp->old_xfer_buffer, temp->data, length);
+ }
urb->transfer_buffer = temp->old_xfer_buffer;
kfree(temp->kmalloc_ptr);
diff --git a/kernel/drivers/usb/host/ehci.h b/kernel/drivers/usb/host/ehci.h
index 52ef0844a..46f62e41b 100644
--- a/kernel/drivers/usb/host/ehci.h
+++ b/kernel/drivers/usb/host/ehci.h
@@ -215,6 +215,7 @@ struct ehci_hcd { /* one per controller */
/* SILICON QUIRKS */
unsigned no_selective_suspend:1;
unsigned has_fsl_port_bug:1; /* FreeScale */
+ unsigned has_fsl_hs_errata:1; /* Freescale HS quirk */
unsigned big_endian_mmio:1;
unsigned big_endian_desc:1;
unsigned big_endian_capbase:1;
@@ -686,6 +687,17 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc)
#define ehci_has_fsl_portno_bug(e) (0)
#endif
+#define PORTSC_FSL_PFSC 24 /* Port Force Full-Speed Connect */
+
+#if defined(CONFIG_PPC_85xx)
+/* Some Freescale processors have an erratum (USB A-005275) in which
+ * incoming packets get corrupted in HS mode
+ */
+#define ehci_has_fsl_hs_errata(e) ((e)->has_fsl_hs_errata)
+#else
+#define ehci_has_fsl_hs_errata(e) (0)
+#endif
+
/*
* While most USB host controllers implement their registers in
* little-endian format, a minority (celleb companion chip) implement
@@ -868,10 +880,13 @@ extern void ehci_init_driver(struct hc_driver *drv,
extern int ehci_setup(struct usb_hcd *hcd);
extern int ehci_handshake(struct ehci_hcd *ehci, void __iomem *ptr,
u32 mask, u32 done, int usec);
+extern int ehci_reset(struct ehci_hcd *ehci);
#ifdef CONFIG_PM
extern int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup);
extern int ehci_resume(struct usb_hcd *hcd, bool force_reset);
+extern void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci,
+ bool suspending, bool do_wakeup);
#endif /* CONFIG_PM */
extern int ehci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
diff --git a/kernel/drivers/usb/host/fotg210-hcd.c b/kernel/drivers/usb/host/fotg210-hcd.c
index 000ed80ab..2341af4f3 100644
--- a/kernel/drivers/usb/host/fotg210-hcd.c
+++ b/kernel/drivers/usb/host/fotg210-hcd.c
@@ -1,5 +1,4 @@
-/*
- * Faraday FOTG210 EHCI-like driver
+/* Faraday FOTG210 EHCI-like driver
*
* Copyright (c) 2013 Faraday Technology Corporation
*
@@ -50,32 +49,29 @@
#include <asm/irq.h>
#include <asm/unaligned.h>
-/*-------------------------------------------------------------------------*/
#define DRIVER_AUTHOR "Yuan-Hsin Chen"
#define DRIVER_DESC "FOTG210 Host Controller (EHCI) Driver"
-
-static const char hcd_name[] = "fotg210_hcd";
+static const char hcd_name[] = "fotg210_hcd";
#undef FOTG210_URB_TRACE
-
#define FOTG210_STATS
/* magic numbers that can affect system performance */
-#define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
-#define FOTG210_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
-#define FOTG210_TUNE_RL_TT 0
-#define FOTG210_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
-#define FOTG210_TUNE_MULT_TT 1
-/*
- * Some drivers think it's safe to schedule isochronous transfers more than
- * 256 ms into the future (partly as a result of an old bug in the scheduling
+#define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
+#define FOTG210_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
+#define FOTG210_TUNE_RL_TT 0
+#define FOTG210_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
+#define FOTG210_TUNE_MULT_TT 1
+
+/* Some drivers think it's safe to schedule isochronous transfers more than 256
+ * ms into the future (partly as a result of an old bug in the scheduling
* code). In an attempt to avoid trouble, we will use a minimum scheduling
* length of 512 frames instead of 256.
*/
-#define FOTG210_TUNE_FLS 1 /* (medium) 512-frame schedule */
+#define FOTG210_TUNE_FLS 1 /* (medium) 512-frame schedule */
/* Initial IRQ latency: faster than hw default */
-static int log2_irq_thresh; /* 0 to 6 */
+static int log2_irq_thresh; /* 0 to 6 */
module_param(log2_irq_thresh, int, S_IRUGO);
MODULE_PARM_DESC(log2_irq_thresh, "log2 IRQ latency, 1-64 microframes");
@@ -89,66 +85,57 @@ static unsigned int hird;
module_param(hird, int, S_IRUGO);
MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us");
-#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT)
+#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT)
#include "fotg210.h"
-/*-------------------------------------------------------------------------*/
-
#define fotg210_dbg(fotg210, fmt, args...) \
- dev_dbg(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args)
+ dev_dbg(fotg210_to_hcd(fotg210)->self.controller, fmt, ## args)
#define fotg210_err(fotg210, fmt, args...) \
- dev_err(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args)
+ dev_err(fotg210_to_hcd(fotg210)->self.controller, fmt, ## args)
#define fotg210_info(fotg210, fmt, args...) \
- dev_info(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args)
+ dev_info(fotg210_to_hcd(fotg210)->self.controller, fmt, ## args)
#define fotg210_warn(fotg210, fmt, args...) \
- dev_warn(fotg210_to_hcd(fotg210)->self.controller , fmt , ## args)
+ dev_warn(fotg210_to_hcd(fotg210)->self.controller, fmt, ## args)
-/* check the values in the HCSPARAMS register
- * (host controller _Structural_ parameters)
- * see EHCI spec, Table 2-4 for each value
+/* check the values in the HCSPARAMS register (host controller _Structural_
+ * parameters) see EHCI spec, Table 2-4 for each value
*/
static void dbg_hcs_params(struct fotg210_hcd *fotg210, char *label)
{
- u32 params = fotg210_readl(fotg210, &fotg210->caps->hcs_params);
+ u32 params = fotg210_readl(fotg210, &fotg210->caps->hcs_params);
- fotg210_dbg(fotg210,
- "%s hcs_params 0x%x ports=%d\n",
- label, params,
- HCS_N_PORTS(params)
- );
+ fotg210_dbg(fotg210, "%s hcs_params 0x%x ports=%d\n", label, params,
+ HCS_N_PORTS(params));
}
-/* check the values in the HCCPARAMS register
- * (host controller _Capability_ parameters)
- * see EHCI Spec, Table 2-5 for each value
- * */
+/* check the values in the HCCPARAMS register (host controller _Capability_
+ * parameters) see EHCI Spec, Table 2-5 for each value
+ */
static void dbg_hcc_params(struct fotg210_hcd *fotg210, char *label)
{
- u32 params = fotg210_readl(fotg210, &fotg210->caps->hcc_params);
+ u32 params = fotg210_readl(fotg210, &fotg210->caps->hcc_params);
- fotg210_dbg(fotg210,
- "%s hcc_params %04x uframes %s%s\n",
- label,
- params,
- HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
- HCC_CANPARK(params) ? " park" : "");
+ fotg210_dbg(fotg210, "%s hcc_params %04x uframes %s%s\n", label,
+ params,
+ HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
+ HCC_CANPARK(params) ? " park" : "");
}
static void __maybe_unused
dbg_qtd(const char *label, struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd)
{
fotg210_dbg(fotg210, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd,
- hc32_to_cpup(fotg210, &qtd->hw_next),
- hc32_to_cpup(fotg210, &qtd->hw_alt_next),
- hc32_to_cpup(fotg210, &qtd->hw_token),
- hc32_to_cpup(fotg210, &qtd->hw_buf[0]));
+ hc32_to_cpup(fotg210, &qtd->hw_next),
+ hc32_to_cpup(fotg210, &qtd->hw_alt_next),
+ hc32_to_cpup(fotg210, &qtd->hw_token),
+ hc32_to_cpup(fotg210, &qtd->hw_buf[0]));
if (qtd->hw_buf[1])
fotg210_dbg(fotg210, " p1=%08x p2=%08x p3=%08x p4=%08x\n",
- hc32_to_cpup(fotg210, &qtd->hw_buf[1]),
- hc32_to_cpup(fotg210, &qtd->hw_buf[2]),
- hc32_to_cpup(fotg210, &qtd->hw_buf[3]),
- hc32_to_cpup(fotg210, &qtd->hw_buf[4]));
+ hc32_to_cpup(fotg210, &qtd->hw_buf[1]),
+ hc32_to_cpup(fotg210, &qtd->hw_buf[2]),
+ hc32_to_cpup(fotg210, &qtd->hw_buf[3]),
+ hc32_to_cpup(fotg210, &qtd->hw_buf[4]));
}
static void __maybe_unused
@@ -156,101 +143,100 @@ dbg_qh(const char *label, struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
struct fotg210_qh_hw *hw = qh->hw;
- fotg210_dbg(fotg210, "%s qh %p n%08x info %x %x qtd %x\n", label,
- qh, hw->hw_next, hw->hw_info1, hw->hw_info2, hw->hw_current);
+ fotg210_dbg(fotg210, "%s qh %p n%08x info %x %x qtd %x\n", label, qh,
+ hw->hw_next, hw->hw_info1, hw->hw_info2,
+ hw->hw_current);
+
dbg_qtd("overlay", fotg210, (struct fotg210_qtd *) &hw->hw_qtd_next);
}
static void __maybe_unused
dbg_itd(const char *label, struct fotg210_hcd *fotg210, struct fotg210_itd *itd)
{
- fotg210_dbg(fotg210, "%s[%d] itd %p, next %08x, urb %p\n",
- label, itd->frame, itd, hc32_to_cpu(fotg210, itd->hw_next),
- itd->urb);
+ fotg210_dbg(fotg210, "%s[%d] itd %p, next %08x, urb %p\n", label,
+ itd->frame, itd, hc32_to_cpu(fotg210, itd->hw_next),
+ itd->urb);
+
fotg210_dbg(fotg210,
- " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n",
- hc32_to_cpu(fotg210, itd->hw_transaction[0]),
- hc32_to_cpu(fotg210, itd->hw_transaction[1]),
- hc32_to_cpu(fotg210, itd->hw_transaction[2]),
- hc32_to_cpu(fotg210, itd->hw_transaction[3]),
- hc32_to_cpu(fotg210, itd->hw_transaction[4]),
- hc32_to_cpu(fotg210, itd->hw_transaction[5]),
- hc32_to_cpu(fotg210, itd->hw_transaction[6]),
- hc32_to_cpu(fotg210, itd->hw_transaction[7]));
+ " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+ hc32_to_cpu(fotg210, itd->hw_transaction[0]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[1]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[2]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[3]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[4]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[5]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[6]),
+ hc32_to_cpu(fotg210, itd->hw_transaction[7]));
+
fotg210_dbg(fotg210,
- " buf: %08x %08x %08x %08x %08x %08x %08x\n",
- hc32_to_cpu(fotg210, itd->hw_bufp[0]),
- hc32_to_cpu(fotg210, itd->hw_bufp[1]),
- hc32_to_cpu(fotg210, itd->hw_bufp[2]),
- hc32_to_cpu(fotg210, itd->hw_bufp[3]),
- hc32_to_cpu(fotg210, itd->hw_bufp[4]),
- hc32_to_cpu(fotg210, itd->hw_bufp[5]),
- hc32_to_cpu(fotg210, itd->hw_bufp[6]));
+ " buf: %08x %08x %08x %08x %08x %08x %08x\n",
+ hc32_to_cpu(fotg210, itd->hw_bufp[0]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[1]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[2]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[3]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[4]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[5]),
+ hc32_to_cpu(fotg210, itd->hw_bufp[6]));
+
fotg210_dbg(fotg210, " index: %d %d %d %d %d %d %d %d\n",
- itd->index[0], itd->index[1], itd->index[2],
- itd->index[3], itd->index[4], itd->index[5],
- itd->index[6], itd->index[7]);
+ itd->index[0], itd->index[1], itd->index[2],
+ itd->index[3], itd->index[4], itd->index[5],
+ itd->index[6], itd->index[7]);
}
static int __maybe_unused
dbg_status_buf(char *buf, unsigned len, const char *label, u32 status)
{
- return scnprintf(buf, len,
- "%s%sstatus %04x%s%s%s%s%s%s%s%s%s%s",
- label, label[0] ? " " : "", status,
- (status & STS_ASS) ? " Async" : "",
- (status & STS_PSS) ? " Periodic" : "",
- (status & STS_RECL) ? " Recl" : "",
- (status & STS_HALT) ? " Halt" : "",
- (status & STS_IAA) ? " IAA" : "",
- (status & STS_FATAL) ? " FATAL" : "",
- (status & STS_FLR) ? " FLR" : "",
- (status & STS_PCD) ? " PCD" : "",
- (status & STS_ERR) ? " ERR" : "",
- (status & STS_INT) ? " INT" : ""
- );
+ return scnprintf(buf, len, "%s%sstatus %04x%s%s%s%s%s%s%s%s%s%s",
+ label, label[0] ? " " : "", status,
+ (status & STS_ASS) ? " Async" : "",
+ (status & STS_PSS) ? " Periodic" : "",
+ (status & STS_RECL) ? " Recl" : "",
+ (status & STS_HALT) ? " Halt" : "",
+ (status & STS_IAA) ? " IAA" : "",
+ (status & STS_FATAL) ? " FATAL" : "",
+ (status & STS_FLR) ? " FLR" : "",
+ (status & STS_PCD) ? " PCD" : "",
+ (status & STS_ERR) ? " ERR" : "",
+ (status & STS_INT) ? " INT" : "");
}
static int __maybe_unused
dbg_intr_buf(char *buf, unsigned len, const char *label, u32 enable)
{
- return scnprintf(buf, len,
- "%s%sintrenable %02x%s%s%s%s%s%s",
- label, label[0] ? " " : "", enable,
- (enable & STS_IAA) ? " IAA" : "",
- (enable & STS_FATAL) ? " FATAL" : "",
- (enable & STS_FLR) ? " FLR" : "",
- (enable & STS_PCD) ? " PCD" : "",
- (enable & STS_ERR) ? " ERR" : "",
- (enable & STS_INT) ? " INT" : ""
- );
+ return scnprintf(buf, len, "%s%sintrenable %02x%s%s%s%s%s%s",
+ label, label[0] ? " " : "", enable,
+ (enable & STS_IAA) ? " IAA" : "",
+ (enable & STS_FATAL) ? " FATAL" : "",
+ (enable & STS_FLR) ? " FLR" : "",
+ (enable & STS_PCD) ? " PCD" : "",
+ (enable & STS_ERR) ? " ERR" : "",
+ (enable & STS_INT) ? " INT" : "");
}
static const char *const fls_strings[] = { "1024", "512", "256", "??" };
-static int
-dbg_command_buf(char *buf, unsigned len, const char *label, u32 command)
+static int dbg_command_buf(char *buf, unsigned len, const char *label,
+ u32 command)
{
return scnprintf(buf, len,
- "%s%scommand %07x %s=%d ithresh=%d%s%s%s "
- "period=%s%s %s",
- label, label[0] ? " " : "", command,
- (command & CMD_PARK) ? " park" : "(park)",
- CMD_PARK_CNT(command),
- (command >> 16) & 0x3f,
- (command & CMD_IAAD) ? " IAAD" : "",
- (command & CMD_ASE) ? " Async" : "",
- (command & CMD_PSE) ? " Periodic" : "",
- fls_strings[(command >> 2) & 0x3],
- (command & CMD_RESET) ? " Reset" : "",
- (command & CMD_RUN) ? "RUN" : "HALT"
- );
-}
-
-static char
-*dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status)
-{
- char *sig;
+ "%s%scommand %07x %s=%d ithresh=%d%s%s%s period=%s%s %s",
+ label, label[0] ? " " : "", command,
+ (command & CMD_PARK) ? " park" : "(park)",
+ CMD_PARK_CNT(command),
+ (command >> 16) & 0x3f,
+ (command & CMD_IAAD) ? " IAAD" : "",
+ (command & CMD_ASE) ? " Async" : "",
+ (command & CMD_PSE) ? " Periodic" : "",
+ fls_strings[(command >> 2) & 0x3],
+ (command & CMD_RESET) ? " Reset" : "",
+ (command & CMD_RUN) ? "RUN" : "HALT");
+}
+
+static char *dbg_port_buf(char *buf, unsigned len, const char *label, int port,
+ u32 status)
+{
+ char *sig;
/* signaling state */
switch (status & (3 << 10)) {
@@ -268,44 +254,41 @@ static char
break;
}
- scnprintf(buf, len,
- "%s%sport:%d status %06x %d "
- "sig=%s%s%s%s%s%s%s%s",
- label, label[0] ? " " : "", port, status,
- status>>25,/*device address */
- sig,
- (status & PORT_RESET) ? " RESET" : "",
- (status & PORT_SUSPEND) ? " SUSPEND" : "",
- (status & PORT_RESUME) ? " RESUME" : "",
- (status & PORT_PEC) ? " PEC" : "",
- (status & PORT_PE) ? " PE" : "",
- (status & PORT_CSC) ? " CSC" : "",
- (status & PORT_CONNECT) ? " CONNECT" : "");
+ scnprintf(buf, len, "%s%sport:%d status %06x %d sig=%s%s%s%s%s%s%s%s",
+ label, label[0] ? " " : "", port, status,
+ status >> 25, /*device address */
+ sig,
+ (status & PORT_RESET) ? " RESET" : "",
+ (status & PORT_SUSPEND) ? " SUSPEND" : "",
+ (status & PORT_RESUME) ? " RESUME" : "",
+ (status & PORT_PEC) ? " PEC" : "",
+ (status & PORT_PE) ? " PE" : "",
+ (status & PORT_CSC) ? " CSC" : "",
+ (status & PORT_CONNECT) ? " CONNECT" : "");
+
return buf;
}
/* functions have the "wrong" filename when they're output... */
-#define dbg_status(fotg210, label, status) { \
- char _buf[80]; \
- dbg_status_buf(_buf, sizeof(_buf), label, status); \
- fotg210_dbg(fotg210, "%s\n", _buf); \
+#define dbg_status(fotg210, label, status) { \
+ char _buf[80]; \
+ dbg_status_buf(_buf, sizeof(_buf), label, status); \
+ fotg210_dbg(fotg210, "%s\n", _buf); \
}
-#define dbg_cmd(fotg210, label, command) { \
- char _buf[80]; \
- dbg_command_buf(_buf, sizeof(_buf), label, command); \
- fotg210_dbg(fotg210, "%s\n", _buf); \
+#define dbg_cmd(fotg210, label, command) { \
+ char _buf[80]; \
+ dbg_command_buf(_buf, sizeof(_buf), label, command); \
+ fotg210_dbg(fotg210, "%s\n", _buf); \
}
-#define dbg_port(fotg210, label, port, status) { \
- char _buf[80]; \
- fotg210_dbg(fotg210, "%s\n", dbg_port_buf(_buf, sizeof(_buf), label, port, status) ); \
+#define dbg_port(fotg210, label, port, status) { \
+ char _buf[80]; \
+ fotg210_dbg(fotg210, "%s\n", \
+ dbg_port_buf(_buf, sizeof(_buf), label, port, status));\
}
-/*-------------------------------------------------------------------------*/
-
/* troubleshooting help: expose state in debugfs */
-
static int debug_async_open(struct inode *, struct file *);
static int debug_periodic_open(struct inode *, struct file *);
static int debug_registers_open(struct inode *, struct file *);
@@ -347,17 +330,22 @@ struct debug_buffer {
size_t alloc_size;
};
-#define speed_char(info1)({ char tmp; \
- switch (info1 & (3 << 12)) { \
- case QH_FULL_SPEED: \
- tmp = 'f'; break; \
- case QH_LOW_SPEED: \
- tmp = 'l'; break; \
- case QH_HIGH_SPEED: \
- tmp = 'h'; break; \
- default: \
- tmp = '?'; break; \
- } tmp; })
+static inline char speed_char(u32 scratch)
+{
+ switch (scratch & (3 << 12)) {
+ case QH_FULL_SPEED:
+ return 'f';
+
+ case QH_LOW_SPEED:
+ return 'l';
+
+ case QH_HIGH_SPEED:
+ return 'h';
+
+ default:
+ return '?';
+ }
+}
static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token)
{
@@ -373,33 +361,29 @@ static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token)
return '/';
}
-static void qh_lines(
- struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh,
- char **nextp,
- unsigned *sizep
-)
-{
- u32 scratch;
- u32 hw_curr;
- struct fotg210_qtd *td;
- unsigned temp;
- unsigned size = *sizep;
- char *next = *nextp;
- char mark;
- __le32 list_end = FOTG210_LIST_END(fotg210);
- struct fotg210_qh_hw *hw = qh->hw;
-
- if (hw->hw_qtd_next == list_end) /* NEC does this */
+static void qh_lines(struct fotg210_hcd *fotg210, struct fotg210_qh *qh,
+ char **nextp, unsigned *sizep)
+{
+ u32 scratch;
+ u32 hw_curr;
+ struct fotg210_qtd *td;
+ unsigned temp;
+ unsigned size = *sizep;
+ char *next = *nextp;
+ char mark;
+ __le32 list_end = FOTG210_LIST_END(fotg210);
+ struct fotg210_qh_hw *hw = qh->hw;
+
+ if (hw->hw_qtd_next == list_end) /* NEC does this */
mark = '@';
else
mark = token_mark(fotg210, hw->hw_token);
- if (mark == '/') { /* qh_alt_next controls qh advance? */
- if ((hw->hw_alt_next & QTD_MASK(fotg210))
- == fotg210->async->hw->hw_alt_next)
- mark = '#'; /* blocked */
+ if (mark == '/') { /* qh_alt_next controls qh advance? */
+ if ((hw->hw_alt_next & QTD_MASK(fotg210)) ==
+ fotg210->async->hw->hw_alt_next)
+ mark = '#'; /* blocked */
else if (hw->hw_alt_next == list_end)
- mark = '.'; /* use hw_qtd_next */
+ mark = '.'; /* use hw_qtd_next */
/* else alt_next points to some other qtd */
}
scratch = hc32_to_cpup(fotg210, &hw->hw_info1);
@@ -462,6 +446,7 @@ static void qh_lines(
temp = snprintf(next, size, "\n");
if (size < temp)
temp = size;
+
size -= temp;
next += temp;
@@ -472,12 +457,12 @@ done:
static ssize_t fill_async_buffer(struct debug_buffer *buf)
{
- struct usb_hcd *hcd;
- struct fotg210_hcd *fotg210;
- unsigned long flags;
- unsigned temp, size;
- char *next;
- struct fotg210_qh *qh;
+ struct usb_hcd *hcd;
+ struct fotg210_hcd *fotg210;
+ unsigned long flags;
+ unsigned temp, size;
+ char *next;
+ struct fotg210_qh *qh;
hcd = bus_to_hcd(buf->bus);
fotg210 = hcd_to_fotg210(hcd);
@@ -492,7 +477,7 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf)
*/
spin_lock_irqsave(&fotg210->lock, flags);
for (qh = fotg210->async->qh_next.qh; size > 0 && qh;
- qh = qh->qh_next.qh)
+ qh = qh->qh_next.qh)
qh_lines(fotg210, qh, &next, &size);
if (fotg210->async_unlink && size > 0) {
temp = scnprintf(next, size, "\nunlink =\n");
@@ -508,21 +493,50 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf)
return strlen(buf->output_buf);
}
+/* count tds, get ep direction */
+static unsigned output_buf_tds_dir(char *buf, struct fotg210_hcd *fotg210,
+ struct fotg210_qh_hw *hw, struct fotg210_qh *qh, unsigned size)
+{
+ u32 scratch = hc32_to_cpup(fotg210, &hw->hw_info1);
+ struct fotg210_qtd *qtd;
+ char *type = "";
+ unsigned temp = 0;
+
+ /* count tds, get ep direction */
+ list_for_each_entry(qtd, &qh->qtd_list, qtd_list) {
+ temp++;
+ switch ((hc32_to_cpu(fotg210, qtd->hw_token) >> 8) & 0x03) {
+ case 0:
+ type = "out";
+ continue;
+ case 1:
+ type = "in";
+ continue;
+ }
+ }
+
+ return scnprintf(buf, size, "(%c%d ep%d%s [%d/%d] q%d p%d)",
+ speed_char(scratch), scratch & 0x007f,
+ (scratch >> 8) & 0x000f, type, qh->usecs,
+ qh->c_usecs, temp, (scratch >> 16) & 0x7ff);
+}
+
#define DBG_SCHED_LIMIT 64
static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
{
- struct usb_hcd *hcd;
- struct fotg210_hcd *fotg210;
- unsigned long flags;
- union fotg210_shadow p, *seen;
- unsigned temp, size, seen_count;
- char *next;
- unsigned i;
- __hc32 tag;
-
- seen = kmalloc(DBG_SCHED_LIMIT * sizeof(*seen), GFP_ATOMIC);
+ struct usb_hcd *hcd;
+ struct fotg210_hcd *fotg210;
+ unsigned long flags;
+ union fotg210_shadow p, *seen;
+ unsigned temp, size, seen_count;
+ char *next;
+ unsigned i;
+ __hc32 tag;
+
+ seen = kmalloc_array(DBG_SCHED_LIMIT, sizeof(*seen), GFP_ATOMIC);
if (!seen)
return 0;
+
seen_count = 0;
hcd = bus_to_hcd(buf->bus);
@@ -542,6 +556,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
p = fotg210->pshadow[i];
if (likely(!p.ptr))
continue;
+
tag = Q_NEXT_TYPE(fotg210, fotg210->periodic[i]);
temp = scnprintf(next, size, "%4d: ", i);
@@ -569,7 +584,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
continue;
if (p.qh->qh_next.ptr) {
temp = scnprintf(next, size,
- " ...");
+ " ...");
size -= temp;
next += temp;
}
@@ -577,38 +592,9 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
}
/* show more info the first time around */
if (temp == seen_count) {
- u32 scratch = hc32_to_cpup(fotg210,
- &hw->hw_info1);
- struct fotg210_qtd *qtd;
- char *type = "";
-
- /* count tds, get ep direction */
- temp = 0;
- list_for_each_entry(qtd,
- &p.qh->qtd_list,
- qtd_list) {
- temp++;
- switch (0x03 & (hc32_to_cpu(
- fotg210,
- qtd->hw_token) >> 8)) {
- case 0:
- type = "out";
- continue;
- case 1:
- type = "in";
- continue;
- }
- }
-
- temp = scnprintf(next, size,
- "(%c%d ep%d%s "
- "[%d/%d] q%d p%d)",
- speed_char(scratch),
- scratch & 0x007f,
- (scratch >> 8) & 0x000f, type,
- p.qh->usecs, p.qh->c_usecs,
- temp,
- 0x7ff & (scratch >> 16));
+ temp = output_buf_tds_dir(next,
+ fotg210, hw,
+ p.qh, size);
if (seen_count < DBG_SCHED_LIMIT)
seen[seen_count++].qh = p.qh;
@@ -619,14 +605,14 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
break;
case Q_TYPE_FSTN:
temp = scnprintf(next, size,
- " fstn-%8x/%p", p.fstn->hw_prev,
- p.fstn);
+ " fstn-%8x/%p",
+ p.fstn->hw_prev, p.fstn);
tag = Q_NEXT_TYPE(fotg210, p.fstn->hw_next);
p = p.fstn->fstn_next;
break;
case Q_TYPE_ITD:
temp = scnprintf(next, size,
- " itd/%p", p.itd);
+ " itd/%p", p.itd);
tag = Q_NEXT_TYPE(fotg210, p.itd->hw_next);
p = p.itd->itd_next;
break;
@@ -663,13 +649,13 @@ static const char *rh_state_string(struct fotg210_hcd *fotg210)
static ssize_t fill_registers_buffer(struct debug_buffer *buf)
{
- struct usb_hcd *hcd;
- struct fotg210_hcd *fotg210;
- unsigned long flags;
- unsigned temp, size, i;
- char *next, scratch[80];
- static const char fmt[] = "%*s\n";
- static const char label[] = "";
+ struct usb_hcd *hcd;
+ struct fotg210_hcd *fotg210;
+ unsigned long flags;
+ unsigned temp, size, i;
+ char *next, scratch[80];
+ static const char fmt[] = "%*s\n";
+ static const char label[] = "";
hcd = bus_to_hcd(buf->bus);
fotg210 = hcd_to_fotg210(hcd);
@@ -680,26 +666,26 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
if (!HCD_HW_ACCESSIBLE(hcd)) {
size = scnprintf(next, size,
- "bus %s, device %s\n"
- "%s\n"
- "SUSPENDED(no register access)\n",
- hcd->self.controller->bus->name,
- dev_name(hcd->self.controller),
- hcd->product_desc);
+ "bus %s, device %s\n"
+ "%s\n"
+ "SUSPENDED(no register access)\n",
+ hcd->self.controller->bus->name,
+ dev_name(hcd->self.controller),
+ hcd->product_desc);
goto done;
}
/* Capability Registers */
i = HC_VERSION(fotg210, fotg210_readl(fotg210,
- &fotg210->caps->hc_capbase));
+ &fotg210->caps->hc_capbase));
temp = scnprintf(next, size,
- "bus %s, device %s\n"
- "%s\n"
- "EHCI %x.%02x, rh state %s\n",
- hcd->self.controller->bus->name,
- dev_name(hcd->self.controller),
- hcd->product_desc,
- i >> 8, i & 0x0ff, rh_state_string(fotg210));
+ "bus %s, device %s\n"
+ "%s\n"
+ "EHCI %x.%02x, rh state %s\n",
+ hcd->self.controller->bus->name,
+ dev_name(hcd->self.controller),
+ hcd->product_desc,
+ i >> 8, i & 0x0ff, rh_state_string(fotg210));
size -= temp;
next += temp;
@@ -747,14 +733,14 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
#ifdef FOTG210_STATS
temp = scnprintf(next, size,
- "irq normal %ld err %ld iaa %ld(lost %ld)\n",
- fotg210->stats.normal, fotg210->stats.error, fotg210->stats.iaa,
- fotg210->stats.lost_iaa);
+ "irq normal %ld err %ld iaa %ld(lost %ld)\n",
+ fotg210->stats.normal, fotg210->stats.error,
+ fotg210->stats.iaa, fotg210->stats.lost_iaa);
size -= temp;
next += temp;
temp = scnprintf(next, size, "complete %ld unlink %ld\n",
- fotg210->stats.complete, fotg210->stats.unlink);
+ fotg210->stats.complete, fotg210->stats.unlink);
size -= temp;
next += temp;
#endif
@@ -765,8 +751,8 @@ done:
return buf->alloc_size - size;
}
-static struct debug_buffer *alloc_buffer(struct usb_bus *bus,
- ssize_t (*fill_func)(struct debug_buffer *))
+static struct debug_buffer
+*alloc_buffer(struct usb_bus *bus, ssize_t (*fill_func)(struct debug_buffer *))
{
struct debug_buffer *buf;
@@ -806,7 +792,7 @@ out:
}
static ssize_t debug_output(struct file *file, char __user *user_buf,
- size_t len, loff_t *offset)
+ size_t len, loff_t *offset)
{
struct debug_buffer *buf = file->private_data;
int ret = 0;
@@ -822,7 +808,7 @@ static ssize_t debug_output(struct file *file, char __user *user_buf,
mutex_unlock(&buf->mutex);
ret = simple_read_from_buffer(user_buf, len, offset,
- buf->output_buf, buf->count);
+ buf->output_buf, buf->count);
out:
return ret;
@@ -850,6 +836,7 @@ static int debug_async_open(struct inode *inode, struct file *file)
static int debug_periodic_open(struct inode *inode, struct file *file)
{
struct debug_buffer *buf;
+
buf = alloc_buffer(inode->i_private, fill_periodic_buffer);
if (!buf)
return -ENOMEM;
@@ -862,7 +849,7 @@ static int debug_periodic_open(struct inode *inode, struct file *file)
static int debug_registers_open(struct inode *inode, struct file *file)
{
file->private_data = alloc_buffer(inode->i_private,
- fill_registers_buffer);
+ fill_registers_buffer);
return file->private_data ? 0 : -ENOMEM;
}
@@ -872,20 +859,20 @@ static inline void create_debug_files(struct fotg210_hcd *fotg210)
struct usb_bus *bus = &fotg210_to_hcd(fotg210)->self;
fotg210->debug_dir = debugfs_create_dir(bus->bus_name,
- fotg210_debug_root);
+ fotg210_debug_root);
if (!fotg210->debug_dir)
return;
if (!debugfs_create_file("async", S_IRUGO, fotg210->debug_dir, bus,
- &debug_async_fops))
+ &debug_async_fops))
goto file_error;
if (!debugfs_create_file("periodic", S_IRUGO, fotg210->debug_dir, bus,
- &debug_periodic_fops))
+ &debug_periodic_fops))
goto file_error;
if (!debugfs_create_file("registers", S_IRUGO, fotg210->debug_dir, bus,
- &debug_registers_fops))
+ &debug_registers_fops))
goto file_error;
return;
@@ -899,10 +886,7 @@ static inline void remove_debug_files(struct fotg210_hcd *fotg210)
debugfs_remove_recursive(fotg210->debug_dir);
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * handshake - spin reading hc until handshake completes or fails
+/* handshake - spin reading hc until handshake completes or fails
* @ptr: address of hc register to be read
* @mask: bits to look at in result of read
* @done: value of those bits when handshake succeeds
@@ -919,9 +903,9 @@ static inline void remove_debug_files(struct fotg210_hcd *fotg210)
* bridge shutdown: shutting down the bridge before the devices using it.
*/
static int handshake(struct fotg210_hcd *fotg210, void __iomem *ptr,
- u32 mask, u32 done, int usec)
+ u32 mask, u32 done, int usec)
{
- u32 result;
+ u32 result;
do {
result = fotg210_readl(fotg210, ptr);
@@ -936,13 +920,12 @@ static int handshake(struct fotg210_hcd *fotg210, void __iomem *ptr,
return -ETIMEDOUT;
}
-/*
- * Force HC to halt state from unknown (EHCI spec section 2.3).
+/* Force HC to halt state from unknown (EHCI spec section 2.3).
* Must be called with interrupts enabled and the lock not held.
*/
static int fotg210_halt(struct fotg210_hcd *fotg210)
{
- u32 temp;
+ u32 temp;
spin_lock_irq(&fotg210->lock);
@@ -962,20 +945,20 @@ static int fotg210_halt(struct fotg210_hcd *fotg210)
synchronize_irq(fotg210_to_hcd(fotg210)->irq);
return handshake(fotg210, &fotg210->regs->status,
- STS_HALT, STS_HALT, 16 * 125);
+ STS_HALT, STS_HALT, 16 * 125);
}
-/*
- * Reset a non-running (STS_HALT == 1) controller.
+/* Reset a non-running (STS_HALT == 1) controller.
* Must be called with interrupts enabled and the lock not held.
*/
static int fotg210_reset(struct fotg210_hcd *fotg210)
{
- int retval;
- u32 command = fotg210_readl(fotg210, &fotg210->regs->command);
+ int retval;
+ u32 command = fotg210_readl(fotg210, &fotg210->regs->command);
/* If the EHCI debug controller is active, special care must be
- * taken before and after a host controller reset */
+ * taken before and after a host controller reset
+ */
if (fotg210->debug && !dbgp_reset_prep(fotg210_to_hcd(fotg210)))
fotg210->debug = NULL;
@@ -985,7 +968,7 @@ static int fotg210_reset(struct fotg210_hcd *fotg210)
fotg210->rh_state = FOTG210_RH_HALTED;
fotg210->next_statechange = jiffies;
retval = handshake(fotg210, &fotg210->regs->command,
- CMD_RESET, 0, 250 * 1000);
+ CMD_RESET, 0, 250 * 1000);
if (retval)
return retval;
@@ -998,13 +981,12 @@ static int fotg210_reset(struct fotg210_hcd *fotg210)
return retval;
}
-/*
- * Idle the controller (turn off the schedules).
+/* Idle the controller (turn off the schedules).
* Must be called with interrupts enabled and the lock not held.
*/
static void fotg210_quiesce(struct fotg210_hcd *fotg210)
{
- u32 temp;
+ u32 temp;
if (fotg210->rh_state != FOTG210_RH_RUNNING)
return;
@@ -1012,7 +994,7 @@ static void fotg210_quiesce(struct fotg210_hcd *fotg210)
/* wait for any schedule enables/disables to take effect */
temp = (fotg210->command << 10) & (STS_ASS | STS_PSS);
handshake(fotg210, &fotg210->regs->status, STS_ASS | STS_PSS, temp,
- 16 * 125);
+ 16 * 125);
/* then disable anything that's still active */
spin_lock_irq(&fotg210->lock);
@@ -1022,11 +1004,9 @@ static void fotg210_quiesce(struct fotg210_hcd *fotg210)
/* hardware can take 16 microframes to turn off ... */
handshake(fotg210, &fotg210->regs->status, STS_ASS | STS_PSS, 0,
- 16 * 125);
+ 16 * 125);
}
-/*-------------------------------------------------------------------------*/
-
static void end_unlink_async(struct fotg210_hcd *fotg210);
static void unlink_empty_async(struct fotg210_hcd *fotg210);
static void fotg210_work(struct fotg210_hcd *fotg210);
@@ -1034,8 +1014,6 @@ static void start_unlink_intr(struct fotg210_hcd *fotg210,
struct fotg210_qh *qh);
static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh);
-/*-------------------------------------------------------------------------*/
-
/* Set a bit in the USBCMD register */
static void fotg210_set_command_bit(struct fotg210_hcd *fotg210, u32 bit)
{
@@ -1056,10 +1034,7 @@ static void fotg210_clear_command_bit(struct fotg210_hcd *fotg210, u32 bit)
fotg210_readl(fotg210, &fotg210->regs->command);
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * EHCI timer support... Now using hrtimers.
+/* EHCI timer support... Now using hrtimers.
*
* Lots of different events are triggered from fotg210->hrtimer. Whenever
* the timer routine runs, it checks each possible event; events that are
@@ -1081,8 +1056,7 @@ static void fotg210_clear_command_bit(struct fotg210_hcd *fotg210, u32 bit)
* allow for an expiration range of 1 ms.
*/
-/*
- * Delay lengths for the hrtimer event types.
+/* Delay lengths for the hrtimer event types.
* Keep this list sorted by delay length, in the same order as
* the event types indexed by enum fotg210_hrtimer_event in fotg210.h.
*/
@@ -1103,7 +1077,7 @@ static unsigned event_delays_ns[] = {
static void fotg210_enable_event(struct fotg210_hcd *fotg210, unsigned event,
bool resched)
{
- ktime_t *timeout = &fotg210->hr_timeouts[event];
+ ktime_t *timeout = &fotg210->hr_timeouts[event];
if (resched)
*timeout = ktime_add(ktime_get(),
@@ -1122,7 +1096,7 @@ static void fotg210_enable_event(struct fotg210_hcd *fotg210, unsigned event,
/* Poll the STS_ASS status bit; see when it agrees with CMD_ASE */
static void fotg210_poll_ASS(struct fotg210_hcd *fotg210)
{
- unsigned actual, want;
+ unsigned actual, want;
/* Don't enable anything if the controller isn't running (e.g., died) */
if (fotg210->rh_state != FOTG210_RH_RUNNING)
@@ -1136,7 +1110,7 @@ static void fotg210_poll_ASS(struct fotg210_hcd *fotg210)
/* Poll again later, but give up after about 20 ms */
if (fotg210->ASS_poll_count++ < 20) {
fotg210_enable_event(fotg210, FOTG210_HRTIMER_POLL_ASS,
- true);
+ true);
return;
}
fotg210_dbg(fotg210, "Waited too long for the async schedule status (%x/%x), giving up\n",
@@ -1154,8 +1128,8 @@ static void fotg210_poll_ASS(struct fotg210_hcd *fotg210)
/* Turn off the schedule after a while */
fotg210_enable_event(fotg210,
- FOTG210_HRTIMER_DISABLE_ASYNC,
- true);
+ FOTG210_HRTIMER_DISABLE_ASYNC,
+ true);
}
}
}
@@ -1170,7 +1144,7 @@ static void fotg210_disable_ASE(struct fotg210_hcd *fotg210)
/* Poll the STS_PSS status bit; see when it agrees with CMD_PSE */
static void fotg210_poll_PSS(struct fotg210_hcd *fotg210)
{
- unsigned actual, want;
+ unsigned actual, want;
/* Don't do anything if the controller isn't running (e.g., died) */
if (fotg210->rh_state != FOTG210_RH_RUNNING)
@@ -1184,7 +1158,7 @@ static void fotg210_poll_PSS(struct fotg210_hcd *fotg210)
/* Poll again later, but give up after about 20 ms */
if (fotg210->PSS_poll_count++ < 20) {
fotg210_enable_event(fotg210, FOTG210_HRTIMER_POLL_PSS,
- true);
+ true);
return;
}
fotg210_dbg(fotg210, "Waited too long for the periodic schedule status (%x/%x), giving up\n",
@@ -1202,8 +1176,8 @@ static void fotg210_poll_PSS(struct fotg210_hcd *fotg210)
/* Turn off the schedule after a while */
fotg210_enable_event(fotg210,
- FOTG210_HRTIMER_DISABLE_PERIODIC,
- true);
+ FOTG210_HRTIMER_DISABLE_PERIODIC,
+ true);
}
}
}
@@ -1224,7 +1198,7 @@ static void fotg210_handle_controller_death(struct fotg210_hcd *fotg210)
if (fotg210->died_poll_count++ < 5) {
/* Try again later */
fotg210_enable_event(fotg210,
- FOTG210_HRTIMER_POLL_DEAD, true);
+ FOTG210_HRTIMER_POLL_DEAD, true);
return;
}
fotg210_warn(fotg210, "Waited too long for the controller to stop, giving up\n");
@@ -1243,7 +1217,7 @@ static void fotg210_handle_controller_death(struct fotg210_hcd *fotg210)
/* Handle unlinked interrupt QHs once they are gone from the hardware */
static void fotg210_handle_intr_unlinks(struct fotg210_hcd *fotg210)
{
- bool stopped = (fotg210->rh_state < FOTG210_RH_RUNNING);
+ bool stopped = (fotg210->rh_state < FOTG210_RH_RUNNING);
/*
* Process all the QHs on the intr_unlink list that were added
@@ -1254,7 +1228,7 @@ static void fotg210_handle_intr_unlinks(struct fotg210_hcd *fotg210)
*/
fotg210->intr_unlinking = true;
while (fotg210->intr_unlink) {
- struct fotg210_qh *qh = fotg210->intr_unlink;
+ struct fotg210_qh *qh = fotg210->intr_unlink;
if (!stopped && qh->unlink_cycle == fotg210->intr_unlink_cycle)
break;
@@ -1266,7 +1240,7 @@ static void fotg210_handle_intr_unlinks(struct fotg210_hcd *fotg210)
/* Handle remaining entries later */
if (fotg210->intr_unlink) {
fotg210_enable_event(fotg210, FOTG210_HRTIMER_UNLINK_INTR,
- true);
+ true);
++fotg210->intr_unlink_cycle;
}
fotg210->intr_unlinking = false;
@@ -1288,7 +1262,7 @@ static void start_free_itds(struct fotg210_hcd *fotg210)
/* Wait for controller to stop using old iTDs and siTDs */
static void end_free_itds(struct fotg210_hcd *fotg210)
{
- struct fotg210_itd *itd, *n;
+ struct fotg210_itd *itd, *n;
if (fotg210->rh_state < FOTG210_RH_RUNNING)
fotg210->last_itd_to_free = NULL;
@@ -1339,7 +1313,7 @@ static void fotg210_iaa_watchdog(struct fotg210_hcd *fotg210)
if ((status & STS_IAA) || !(cmd & CMD_IAAD)) {
COUNT(fotg210->stats.lost_iaa);
fotg210_writel(fotg210, STS_IAA,
- &fotg210->regs->status);
+ &fotg210->regs->status);
}
fotg210_dbg(fotg210, "IAA watchdog: status %x cmd %x\n",
@@ -1355,7 +1329,7 @@ static void turn_on_io_watchdog(struct fotg210_hcd *fotg210)
/* Not needed if the controller isn't running or it's already enabled */
if (fotg210->rh_state != FOTG210_RH_RUNNING ||
(fotg210->enabled_hrtimer_events &
- BIT(FOTG210_HRTIMER_IO_WATCHDOG)))
+ BIT(FOTG210_HRTIMER_IO_WATCHDOG)))
return;
/*
@@ -1365,12 +1339,11 @@ static void turn_on_io_watchdog(struct fotg210_hcd *fotg210)
if (fotg210->isoc_count > 0 || (fotg210->need_io_watchdog &&
fotg210->async_count + fotg210->intr_count > 0))
fotg210_enable_event(fotg210, FOTG210_HRTIMER_IO_WATCHDOG,
- true);
+ true);
}
-/*
- * Handler functions for the hrtimer event types.
+/* Handler functions for the hrtimer event types.
* Keep this array in the same order as the event types indexed by
* enum fotg210_hrtimer_event in fotg210.h.
*/
@@ -1391,10 +1364,10 @@ static enum hrtimer_restart fotg210_hrtimer_func(struct hrtimer *t)
{
struct fotg210_hcd *fotg210 =
container_of(t, struct fotg210_hcd, hrtimer);
- ktime_t now;
- unsigned long events;
- unsigned long flags;
- unsigned e;
+ ktime_t now;
+ unsigned long events;
+ unsigned long flags;
+ unsigned e;
spin_lock_irqsave(&fotg210->lock, flags);
@@ -1418,50 +1391,37 @@ static enum hrtimer_restart fotg210_hrtimer_func(struct hrtimer *t)
return HRTIMER_NORESTART;
}
-/*-------------------------------------------------------------------------*/
-
-#define fotg210_bus_suspend NULL
-#define fotg210_bus_resume NULL
+#define fotg210_bus_suspend NULL
+#define fotg210_bus_resume NULL
-/*-------------------------------------------------------------------------*/
-
-static int check_reset_complete(
- struct fotg210_hcd *fotg210,
- int index,
- u32 __iomem *status_reg,
- int port_status
-) {
+static int check_reset_complete(struct fotg210_hcd *fotg210, int index,
+ u32 __iomem *status_reg, int port_status)
+{
if (!(port_status & PORT_CONNECT))
return port_status;
/* if reset finished and it's still not enabled -- handoff */
- if (!(port_status & PORT_PE)) {
+ if (!(port_status & PORT_PE))
/* with integrated TT, there's nobody to hand it to! */
- fotg210_dbg(fotg210,
- "Failed to enable port %d on root hub TT\n",
- index+1);
- return port_status;
- } else {
+ fotg210_dbg(fotg210, "Failed to enable port %d on root hub TT\n",
+ index + 1);
+ else
fotg210_dbg(fotg210, "port %d reset complete, port enabled\n",
- index + 1);
- }
+ index + 1);
return port_status;
}
-/*-------------------------------------------------------------------------*/
-
/* build "status change" packet (one or two bytes) from HC registers */
-static int
-fotg210_hub_status_data(struct usb_hcd *hcd, char *buf)
+static int fotg210_hub_status_data(struct usb_hcd *hcd, char *buf)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- u32 temp, status;
- u32 mask;
- int retval = 1;
- unsigned long flags;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ u32 temp, status;
+ u32 mask;
+ int retval = 1;
+ unsigned long flags;
/* init status to no-changes */
buf[0] = 0;
@@ -1488,9 +1448,9 @@ fotg210_hub_status_data(struct usb_hcd *hcd, char *buf)
* controller by the user.
*/
- if ((temp & mask) != 0 || test_bit(0, &fotg210->port_c_suspend)
- || (fotg210->reset_done[0] && time_after_eq(
- jiffies, fotg210->reset_done[0]))) {
+ if ((temp & mask) != 0 || test_bit(0, &fotg210->port_c_suspend) ||
+ (fotg210->reset_done[0] &&
+ time_after_eq(jiffies, fotg210->reset_done[0]))) {
buf[0] |= 1 << 1;
status = STS_PCD;
}
@@ -1499,15 +1459,11 @@ fotg210_hub_status_data(struct usb_hcd *hcd, char *buf)
return status ? retval : 0;
}
-/*-------------------------------------------------------------------------*/
-
-static void
-fotg210_hub_descriptor(
- struct fotg210_hcd *fotg210,
- struct usb_hub_descriptor *desc
-) {
- int ports = HCS_N_PORTS(fotg210->hcs_params);
- u16 temp;
+static void fotg210_hub_descriptor(struct fotg210_hcd *fotg210,
+ struct usb_hub_descriptor *desc)
+{
+ int ports = HCS_N_PORTS(fotg210->hcs_params);
+ u16 temp;
desc->bDescriptorType = USB_DT_HUB;
desc->bPwrOn2PwrGood = 10; /* fotg210 1.0, 2.3.9 says 20ms max */
@@ -1526,23 +1482,16 @@ fotg210_hub_descriptor(
desc->wHubCharacteristics = cpu_to_le16(temp);
}
-/*-------------------------------------------------------------------------*/
-
-static int fotg210_hub_control(
- struct usb_hcd *hcd,
- u16 typeReq,
- u16 wValue,
- u16 wIndex,
- char *buf,
- u16 wLength
-) {
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- int ports = HCS_N_PORTS(fotg210->hcs_params);
- u32 __iomem *status_reg = &fotg210->regs->port_status;
- u32 temp, temp1, status;
- unsigned long flags;
- int retval = 0;
- unsigned selector;
+static int fotg210_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ u16 wIndex, char *buf, u16 wLength)
+{
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ int ports = HCS_N_PORTS(fotg210->hcs_params);
+ u32 __iomem *status_reg = &fotg210->regs->port_status;
+ u32 temp, temp1, status;
+ unsigned long flags;
+ int retval = 0;
+ unsigned selector;
/*
* FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR.
@@ -1605,7 +1554,7 @@ static int fotg210_hub_control(
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
fotg210_writel(fotg210, temp | OTGISR_OVC,
- &fotg210->regs->otgisr);
+ &fotg210->regs->otgisr);
break;
case USB_PORT_FEAT_C_RESET:
/* GetPortStatus clears reset */
@@ -1617,7 +1566,7 @@ static int fotg210_hub_control(
break;
case GetHubDescriptor:
fotg210_hub_descriptor(fotg210, (struct usb_hub_descriptor *)
- buf);
+ buf);
break;
case GetHubStatus:
/* no hub-wide feature/status flags */
@@ -1663,16 +1612,16 @@ static int fotg210_hub_control(
/* stop resume signaling */
temp = fotg210_readl(fotg210, status_reg);
- fotg210_writel(fotg210,
- temp & ~(PORT_RWC_BITS | PORT_RESUME),
- status_reg);
+ fotg210_writel(fotg210, temp &
+ ~(PORT_RWC_BITS | PORT_RESUME),
+ status_reg);
clear_bit(wIndex, &fotg210->resuming_ports);
retval = handshake(fotg210, status_reg,
- PORT_RESUME, 0, 2000 /* 2msec */);
+ PORT_RESUME, 0, 2000);/* 2ms */
if (retval != 0) {
fotg210_err(fotg210,
- "port %d resume error %d\n",
- wIndex + 1, retval);
+ "port %d resume error %d\n",
+ wIndex + 1, retval);
goto error;
}
temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10));
@@ -1680,17 +1629,16 @@ static int fotg210_hub_control(
}
/* whoever resets must GetPortStatus to complete it!! */
- if ((temp & PORT_RESET)
- && time_after_eq(jiffies,
- fotg210->reset_done[wIndex])) {
+ if ((temp & PORT_RESET) && time_after_eq(jiffies,
+ fotg210->reset_done[wIndex])) {
status |= USB_PORT_STAT_C_RESET << 16;
fotg210->reset_done[wIndex] = 0;
clear_bit(wIndex, &fotg210->resuming_ports);
/* force reset to complete */
fotg210_writel(fotg210,
- temp & ~(PORT_RWC_BITS | PORT_RESET),
- status_reg);
+ temp & ~(PORT_RWC_BITS | PORT_RESET),
+ status_reg);
/* REVISIT: some hardware needs 550+ usec to clear
* this bit; seems too long to spin routinely...
*/
@@ -1698,7 +1646,7 @@ static int fotg210_hub_control(
PORT_RESET, 0, 1000);
if (retval != 0) {
fotg210_err(fotg210, "port %d reset error %d\n",
- wIndex + 1, retval);
+ wIndex + 1, retval);
goto error;
}
@@ -1718,7 +1666,7 @@ static int fotg210_hub_control(
temp &= ~PORT_RWC_BITS;
fotg210_writel(fotg210, temp, status_reg);
fotg210_dbg(fotg210, "port %d --> companion\n",
- wIndex + 1);
+ wIndex + 1);
temp = fotg210_readl(fotg210, status_reg);
}
@@ -1788,7 +1736,7 @@ static int fotg210_hub_control(
* mode if we have hostpc feature
*/
fotg210_writel(fotg210, temp | PORT_SUSPEND,
- status_reg);
+ status_reg);
set_bit(wIndex, &fotg210->suspended_ports);
break;
case USB_PORT_FEAT_RESET:
@@ -1866,9 +1814,8 @@ static int __maybe_unused fotg210_port_handed_over(struct usb_hcd *hcd,
{
return 0;
}
-/*-------------------------------------------------------------------------*/
-/*
- * There's basically three types of memory:
+
+/* There's basically three types of memory:
* - data used only by the HCD ... kmalloc is fine
* - async and periodic schedules, shared by HC and HCD ... these
* need to use dma_pool or dma_alloc_coherent
@@ -1878,12 +1825,9 @@ static int __maybe_unused fotg210_port_handed_over(struct usb_hcd *hcd,
* No memory seen by this driver is pageable.
*/
-/*-------------------------------------------------------------------------*/
-
/* Allocate the key transfer structures from the previously allocated pool */
-
static inline void fotg210_qtd_init(struct fotg210_hcd *fotg210,
- struct fotg210_qtd *qtd, dma_addr_t dma)
+ struct fotg210_qtd *qtd, dma_addr_t dma)
{
memset(qtd, 0, sizeof(*qtd));
qtd->qtd_dma = dma;
@@ -1894,10 +1838,10 @@ static inline void fotg210_qtd_init(struct fotg210_hcd *fotg210,
}
static struct fotg210_qtd *fotg210_qtd_alloc(struct fotg210_hcd *fotg210,
- gfp_t flags)
+ gfp_t flags)
{
- struct fotg210_qtd *qtd;
- dma_addr_t dma;
+ struct fotg210_qtd *qtd;
+ dma_addr_t dma;
qtd = dma_pool_alloc(fotg210->qtd_pool, flags, &dma);
if (qtd != NULL)
@@ -1907,7 +1851,7 @@ static struct fotg210_qtd *fotg210_qtd_alloc(struct fotg210_hcd *fotg210,
}
static inline void fotg210_qtd_free(struct fotg210_hcd *fotg210,
- struct fotg210_qtd *qtd)
+ struct fotg210_qtd *qtd)
{
dma_pool_free(fotg210->qtd_pool, qtd, qtd->qtd_dma);
}
@@ -1927,10 +1871,10 @@ static void qh_destroy(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
}
static struct fotg210_qh *fotg210_qh_alloc(struct fotg210_hcd *fotg210,
- gfp_t flags)
+ gfp_t flags)
{
- struct fotg210_qh *qh;
- dma_addr_t dma;
+ struct fotg210_qh *qh;
+ dma_addr_t dma;
qh = kzalloc(sizeof(*qh), GFP_ATOMIC);
if (!qh)
@@ -1958,8 +1902,6 @@ fail:
return NULL;
}
-/*-------------------------------------------------------------------------*/
-
/* The queue heads and transfer descriptors are managed from pools tied
* to each of the "per device" structures.
* This is the initialisation and cleanup code.
@@ -1976,23 +1918,19 @@ static void fotg210_mem_cleanup(struct fotg210_hcd *fotg210)
fotg210->dummy = NULL;
/* DMA consistent memory and pools */
- if (fotg210->qtd_pool)
- dma_pool_destroy(fotg210->qtd_pool);
+ dma_pool_destroy(fotg210->qtd_pool);
fotg210->qtd_pool = NULL;
- if (fotg210->qh_pool) {
- dma_pool_destroy(fotg210->qh_pool);
- fotg210->qh_pool = NULL;
- }
+ dma_pool_destroy(fotg210->qh_pool);
+ fotg210->qh_pool = NULL;
- if (fotg210->itd_pool)
- dma_pool_destroy(fotg210->itd_pool);
+ dma_pool_destroy(fotg210->itd_pool);
fotg210->itd_pool = NULL;
if (fotg210->periodic)
dma_free_coherent(fotg210_to_hcd(fotg210)->self.controller,
- fotg210->periodic_size * sizeof(u32),
- fotg210->periodic, fotg210->periodic_dma);
+ fotg210->periodic_size * sizeof(u32),
+ fotg210->periodic, fotg210->periodic_dma);
fotg210->periodic = NULL;
/* shadow periodic table */
@@ -2039,8 +1977,8 @@ static int fotg210_mem_init(struct fotg210_hcd *fotg210, gfp_t flags)
/* Hardware periodic table */
fotg210->periodic = (__le32 *)
dma_alloc_coherent(fotg210_to_hcd(fotg210)->self.controller,
- fotg210->periodic_size * sizeof(__le32),
- &fotg210->periodic_dma, 0);
+ fotg210->periodic_size * sizeof(__le32),
+ &fotg210->periodic_dma, 0);
if (fotg210->periodic == NULL)
goto fail;
@@ -2049,7 +1987,7 @@ static int fotg210_mem_init(struct fotg210_hcd *fotg210, gfp_t flags)
/* software shadow of hardware table */
fotg210->pshadow = kcalloc(fotg210->periodic_size, sizeof(void *),
- flags);
+ flags);
if (fotg210->pshadow != NULL)
return 0;
@@ -2058,9 +1996,7 @@ fail:
fotg210_mem_cleanup(fotg210);
return -ENOMEM;
}
-/*-------------------------------------------------------------------------*/
-/*
- * EHCI hardware queue manipulation ... the core. QH/QTD manipulation.
+/* EHCI hardware queue manipulation ... the core. QH/QTD manipulation.
*
* Control, bulk, and interrupt traffic all use "qh" lists. They list "qtd"
* entries describing USB transactions, max 16-20kB/entry (with 4kB-aligned
@@ -2077,16 +2013,12 @@ fail:
* buffer low/full speed data so the host collects it at high speed.
*/
-/*-------------------------------------------------------------------------*/
-
/* fill a qtd, returning how much of the buffer we were able to queue up */
-
-static int
-qtd_fill(struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd, dma_addr_t buf,
- size_t len, int token, int maxpacket)
+static int qtd_fill(struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd,
+ dma_addr_t buf, size_t len, int token, int maxpacket)
{
- int i, count;
- u64 addr = buf;
+ int i, count;
+ u64 addr = buf;
/* one buffer entry per 4K ... first might be short or unaligned */
qtd->hw_buf[0] = cpu_to_hc32(fotg210, (u32)addr);
@@ -2121,11 +2053,8 @@ qtd_fill(struct fotg210_hcd *fotg210, struct fotg210_qtd *qtd, dma_addr_t buf,
return count;
}
-/*-------------------------------------------------------------------------*/
-
-static inline void
-qh_update(struct fotg210_hcd *fotg210, struct fotg210_qh *qh,
- struct fotg210_qtd *qtd)
+static inline void qh_update(struct fotg210_hcd *fotg210,
+ struct fotg210_qh *qh, struct fotg210_qtd *qtd)
{
struct fotg210_qh_hw *hw = qh->hw;
@@ -2141,7 +2070,7 @@ qh_update(struct fotg210_hcd *fotg210, struct fotg210_qh *qh,
* ever clear it.
*/
if (!(hw->hw_info1 & cpu_to_hc32(fotg210, QH_TOGGLE_CTL))) {
- unsigned is_out, epnum;
+ unsigned is_out, epnum;
is_out = qh->is_out;
epnum = (hc32_to_cpup(fotg210, &hw->hw_info1) >> 8) & 0x0f;
@@ -2158,8 +2087,7 @@ qh_update(struct fotg210_hcd *fotg210, struct fotg210_qh *qh,
* overlay, so qh->hw_token wrongly becomes inactive/halted), only fault
* recovery (including urb dequeue) would need software changes to a QH...
*/
-static void
-qh_refresh(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
+static void qh_refresh(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
struct fotg210_qtd *qtd;
@@ -2185,16 +2113,14 @@ qh_refresh(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
qh_update(fotg210, qh, qtd);
}
-/*-------------------------------------------------------------------------*/
-
static void qh_link_async(struct fotg210_hcd *fotg210, struct fotg210_qh *qh);
static void fotg210_clear_tt_buffer_complete(struct usb_hcd *hcd,
struct usb_host_endpoint *ep)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- struct fotg210_qh *qh = ep->hcpriv;
- unsigned long flags;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_qh *qh = ep->hcpriv;
+ unsigned long flags;
spin_lock_irqsave(&fotg210->lock, flags);
qh->clearing_tt = 0;
@@ -2205,8 +2131,7 @@ static void fotg210_clear_tt_buffer_complete(struct usb_hcd *hcd,
}
static void fotg210_clear_tt_buffer(struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh,
- struct urb *urb, u32 token)
+ struct fotg210_qh *qh, struct urb *urb, u32 token)
{
/* If an async split transaction gets an error or is unlinked,
@@ -2217,27 +2142,24 @@ static void fotg210_clear_tt_buffer(struct fotg210_hcd *fotg210,
*/
if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) {
struct usb_device *tt = urb->dev->tt->hub;
+
dev_dbg(&tt->dev,
- "clear tt buffer port %d, a%d ep%d t%08x\n",
- urb->dev->ttport, urb->dev->devnum,
- usb_pipeendpoint(urb->pipe), token);
+ "clear tt buffer port %d, a%d ep%d t%08x\n",
+ urb->dev->ttport, urb->dev->devnum,
+ usb_pipeendpoint(urb->pipe), token);
if (urb->dev->tt->hub !=
- fotg210_to_hcd(fotg210)->self.root_hub) {
+ fotg210_to_hcd(fotg210)->self.root_hub) {
if (usb_hub_clear_tt_buffer(urb) == 0)
qh->clearing_tt = 1;
}
}
}
-static int qtd_copy_status(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- size_t length,
- u32 token
-)
+static int qtd_copy_status(struct fotg210_hcd *fotg210, struct urb *urb,
+ size_t length, u32 token)
{
- int status = -EINPROGRESS;
+ int status = -EINPROGRESS;
/* count IN/OUT bytes, not SETUP (even short packets) */
if (likely(QTD_PID(token) != 2))
@@ -2274,32 +2196,32 @@ static int qtd_copy_status(
} else if (token & QTD_STS_XACT) {
/* timeout, bad CRC, wrong PID, etc */
fotg210_dbg(fotg210, "devpath %s ep%d%s 3strikes\n",
- urb->dev->devpath,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out");
+ urb->dev->devpath,
+ usb_pipeendpoint(urb->pipe),
+ usb_pipein(urb->pipe) ? "in" : "out");
status = -EPROTO;
} else { /* unknown */
status = -EPROTO;
}
fotg210_dbg(fotg210,
- "dev%d ep%d%s qtd token %08x --> status %d\n",
- usb_pipedevice(urb->pipe),
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- token, status);
+ "dev%d ep%d%s qtd token %08x --> status %d\n",
+ usb_pipedevice(urb->pipe),
+ usb_pipeendpoint(urb->pipe),
+ usb_pipein(urb->pipe) ? "in" : "out",
+ token, status);
}
return status;
}
-static void
-fotg210_urb_done(struct fotg210_hcd *fotg210, struct urb *urb, int status)
+static void fotg210_urb_done(struct fotg210_hcd *fotg210, struct urb *urb,
+ int status)
__releases(fotg210->lock)
__acquires(fotg210->lock)
{
if (likely(urb->hcpriv != NULL)) {
- struct fotg210_qh *qh = (struct fotg210_qh *) urb->hcpriv;
+ struct fotg210_qh *qh = (struct fotg210_qh *) urb->hcpriv;
/* S-mask in a QH means it's an interrupt urb */
if ((qh->hw->hw_info2 & cpu_to_hc32(fotg210, QH_SMASK)) != 0) {
@@ -2320,12 +2242,12 @@ __acquires(fotg210->lock)
#ifdef FOTG210_URB_TRACE
fotg210_dbg(fotg210,
- "%s %s urb %p ep%d%s status %d len %d/%d\n",
- __func__, urb->dev->devpath, urb,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- status,
- urb->actual_length, urb->transfer_buffer_length);
+ "%s %s urb %p ep%d%s status %d len %d/%d\n",
+ __func__, urb->dev->devpath, urb,
+ usb_pipeendpoint(urb->pipe),
+ usb_pipein(urb->pipe) ? "in" : "out",
+ status,
+ urb->actual_length, urb->transfer_buffer_length);
#endif
/* complete() can reenter this HCD */
@@ -2337,21 +2259,20 @@ __acquires(fotg210->lock)
static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh);
-/*
- * Process and free completed qtds for a qh, returning URBs to drivers.
+/* Process and free completed qtds for a qh, returning URBs to drivers.
* Chases up to qh->hw_current. Returns number of completions called,
* indicating how much "real" work we did.
*/
-static unsigned
-qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
+static unsigned qh_completions(struct fotg210_hcd *fotg210,
+ struct fotg210_qh *qh)
{
- struct fotg210_qtd *last, *end = qh->dummy;
- struct list_head *entry, *tmp;
- int last_status;
- int stopped;
- unsigned count = 0;
- u8 state;
- struct fotg210_qh_hw *hw = qh->hw;
+ struct fotg210_qtd *last, *end = qh->dummy;
+ struct list_head *entry, *tmp;
+ int last_status;
+ int stopped;
+ unsigned count = 0;
+ u8 state;
+ struct fotg210_qh_hw *hw = qh->hw;
if (unlikely(list_empty(&qh->qtd_list)))
return count;
@@ -2370,7 +2291,7 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
qh->qh_state = QH_STATE_COMPLETING;
stopped = (state == QH_STATE_IDLE);
- rescan:
+rescan:
last = NULL;
last_status = -EINPROGRESS;
qh->needs_rescan = 0;
@@ -2381,9 +2302,9 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
* if queue is stopped, handles unlinks.
*/
list_for_each_safe(entry, tmp, &qh->qtd_list) {
- struct fotg210_qtd *qtd;
- struct urb *urb;
- u32 token = 0;
+ struct fotg210_qtd *qtd;
+ struct urb *urb;
+ u32 token = 0;
qtd = list_entry(entry, struct fotg210_qtd, qtd_list);
urb = qtd->urb;
@@ -2392,7 +2313,7 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
if (last) {
if (likely(last->urb != urb)) {
fotg210_urb_done(fotg210, last->urb,
- last_status);
+ last_status);
count++;
last_status = -EINPROGRESS;
}
@@ -2409,20 +2330,17 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
token = hc32_to_cpu(fotg210, qtd->hw_token);
/* always clean up qtds the hc de-activated */
- retry_xacterr:
+retry_xacterr:
if ((token & QTD_STS_ACTIVE) == 0) {
/* Report Data Buffer Error: non-fatal but useful */
if (token & QTD_STS_DBE)
fotg210_dbg(fotg210,
"detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n",
- urb,
- usb_endpoint_num(&urb->ep->desc),
+ urb, usb_endpoint_num(&urb->ep->desc),
usb_endpoint_dir_in(&urb->ep->desc)
? "in" : "out",
- urb->transfer_buffer_length,
- qtd,
- qh);
+ urb->transfer_buffer_length, qtd, qh);
/* on STALL, error, and short reads this urb must
* complete and all its qtds must be recycled.
@@ -2433,12 +2351,14 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
* reach the software xacterr limit
*/
if ((token & QTD_STS_XACT) &&
- QTD_CERR(token) == 0 &&
- ++qh->xacterrs < QH_XACTERR_MAX &&
- !urb->unlinked) {
+ QTD_CERR(token) == 0 &&
+ ++qh->xacterrs < QH_XACTERR_MAX &&
+ !urb->unlinked) {
fotg210_dbg(fotg210,
- "detected XactErr len %zu/%zu retry %d\n",
- qtd->length - QTD_LENGTH(token), qtd->length, qh->xacterrs);
+ "detected XactErr len %zu/%zu retry %d\n",
+ qtd->length - QTD_LENGTH(token),
+ qtd->length,
+ qh->xacterrs);
/* reset the token in the qtd and the
* qh overlay (which still contains
@@ -2466,9 +2386,9 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
* URB_SHORT_NOT_OK was set so the driver submitting
* the urbs could clean it up.
*/
- } else if (IS_SHORT_READ(token)
- && !(qtd->hw_alt_next
- & FOTG210_LIST_END(fotg210))) {
+ } else if (IS_SHORT_READ(token) &&
+ !(qtd->hw_alt_next &
+ FOTG210_LIST_END(fotg210))) {
stopped = 1;
}
@@ -2492,9 +2412,9 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
continue;
/* qh unlinked; token in overlay may be most current */
- if (state == QH_STATE_IDLE
- && cpu_to_hc32(fotg210, qtd->qtd_dma)
- == hw->hw_current) {
+ if (state == QH_STATE_IDLE &&
+ cpu_to_hc32(fotg210, qtd->qtd_dma)
+ == hw->hw_current) {
token = hc32_to_cpu(fotg210, hw->hw_token);
/* An unlink may leave an incomplete
@@ -2502,7 +2422,7 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
* We have to clear it.
*/
fotg210_clear_tt_buffer(fotg210, qh, urb,
- token);
+ token);
}
}
@@ -2516,9 +2436,9 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
if (last_status == -EINPROGRESS) {
last_status = qtd_copy_status(fotg210, urb,
qtd->length, token);
- if (last_status == -EREMOTEIO
- && (qtd->hw_alt_next
- & FOTG210_LIST_END(fotg210)))
+ if (last_status == -EREMOTEIO &&
+ (qtd->hw_alt_next &
+ FOTG210_LIST_END(fotg210)))
last_status = -EINPROGRESS;
/* As part of low/full-speed endpoint-halt processing
@@ -2537,7 +2457,7 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
*/
if (last_status != -EPIPE)
fotg210_clear_tt_buffer(fotg210, qh,
- urb, token);
+ urb, token);
}
}
@@ -2615,26 +2535,21 @@ qh_completions(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
return count;
}
-/*-------------------------------------------------------------------------*/
-
/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
/* ... and packet size, for any kind of endpoint descriptor */
#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
-/*
- * reverse of qh_urb_transaction: free a list of TDs.
+/* reverse of qh_urb_transaction: free a list of TDs.
* used for cleanup after errors, before HC sees an URB's TDs.
*/
-static void qtd_list_free(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct list_head *qtd_list
-) {
- struct list_head *entry, *temp;
+static void qtd_list_free(struct fotg210_hcd *fotg210, struct urb *urb,
+ struct list_head *qtd_list)
+{
+ struct list_head *entry, *temp;
list_for_each_safe(entry, temp, qtd_list) {
- struct fotg210_qtd *qtd;
+ struct fotg210_qtd *qtd;
qtd = list_entry(entry, struct fotg210_qtd, qtd_list);
list_del(&qtd->qtd_list);
@@ -2642,23 +2557,18 @@ static void qtd_list_free(
}
}
-/*
- * create a list of filled qtds for this URB; won't link into qh.
+/* create a list of filled qtds for this URB; won't link into qh.
*/
-static struct list_head *
-qh_urb_transaction(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct list_head *head,
- gfp_t flags
-) {
- struct fotg210_qtd *qtd, *qtd_prev;
- dma_addr_t buf;
- int len, this_sg_len, maxpacket;
- int is_input;
- u32 token;
- int i;
- struct scatterlist *sg;
+static struct list_head *qh_urb_transaction(struct fotg210_hcd *fotg210,
+ struct urb *urb, struct list_head *head, gfp_t flags)
+{
+ struct fotg210_qtd *qtd, *qtd_prev;
+ dma_addr_t buf;
+ int len, this_sg_len, maxpacket;
+ int is_input;
+ u32 token;
+ int i;
+ struct scatterlist *sg;
/*
* URBs map to sequences of QTDs: one logical transaction
@@ -2768,8 +2678,8 @@ qh_urb_transaction(
* have the alt_next mechanism keep the queue running after the
* last data qtd (the only one, for control and most other cases).
*/
- if (likely((urb->transfer_flags & URB_SHORT_NOT_OK) == 0
- || usb_pipecontrol(urb->pipe)))
+ if (likely((urb->transfer_flags & URB_SHORT_NOT_OK) == 0 ||
+ usb_pipecontrol(urb->pipe)))
qtd->hw_alt_next = FOTG210_LIST_END(fotg210);
/*
@@ -2778,7 +2688,7 @@ qh_urb_transaction(
* (zero length).
*/
if (likely(urb->transfer_buffer_length != 0)) {
- int one_more = 0;
+ int one_more = 0;
if (usb_pipecontrol(urb->pipe)) {
one_more = 1;
@@ -2813,9 +2723,7 @@ cleanup:
return NULL;
}
-/*-------------------------------------------------------------------------*/
-/*
- * Would be best to create all qh's from config descriptors,
+/* Would be best to create all qh's from config descriptors,
* when each interface/altsetting is established. Unlink
* any previous qh and cancel its urbs first; endpoints are
* implicitly reset then (data toggle too).
@@ -2823,26 +2731,22 @@ cleanup:
*/
-/*
- * Each QH holds a qtd list; a QH is used for everything except iso.
+/* Each QH holds a qtd list; a QH is used for everything except iso.
*
* For interrupt urbs, the scheduler must set the microframe scheduling
* mask(s) each time the QH gets scheduled. For highspeed, that's
* just one microframe in the s-mask. For split interrupt transactions
* there are additional complications: c-mask, maybe FSTNs.
*/
-static struct fotg210_qh *
-qh_make(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- gfp_t flags
-) {
- struct fotg210_qh *qh = fotg210_qh_alloc(fotg210, flags);
- u32 info1 = 0, info2 = 0;
- int is_input, type;
- int maxp = 0;
- struct usb_tt *tt = urb->dev->tt;
- struct fotg210_qh_hw *hw;
+static struct fotg210_qh *qh_make(struct fotg210_hcd *fotg210, struct urb *urb,
+ gfp_t flags)
+{
+ struct fotg210_qh *qh = fotg210_qh_alloc(fotg210, flags);
+ u32 info1 = 0, info2 = 0;
+ int is_input, type;
+ int maxp = 0;
+ struct usb_tt *tt = urb->dev->tt;
+ struct fotg210_qh_hw *hw;
if (!qh)
return qh;
@@ -2862,7 +2766,7 @@ qh_make(
*/
if (max_packet(maxp) > 1024) {
fotg210_dbg(fotg210, "bogus qh maxpacket %d\n",
- max_packet(maxp));
+ max_packet(maxp));
goto done;
}
@@ -2896,7 +2800,7 @@ qh_make(
urb->interval = qh->period << 3;
}
} else {
- int think_time;
+ int think_time;
/* gap is f(FS/LS transfer times) */
qh->gap_uf = 1 + usb_calc_bus_time(urb->dev->speed,
@@ -2986,7 +2890,7 @@ qh_make(
break;
default:
fotg210_dbg(fotg210, "bogus dev %p speed %d\n", urb->dev,
- urb->dev->speed);
+ urb->dev->speed);
done:
qh_destroy(fotg210, qh);
return NULL;
@@ -3005,8 +2909,6 @@ done:
return qh;
}
-/*-------------------------------------------------------------------------*/
-
static void enable_async(struct fotg210_hcd *fotg210)
{
if (fotg210->async_count++)
@@ -3036,8 +2938,8 @@ static void disable_async(struct fotg210_hcd *fotg210)
static void qh_link_async(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
- __hc32 dma = QH_NEXT(fotg210, qh->qh_dma);
- struct fotg210_qh *head;
+ __hc32 dma = QH_NEXT(fotg210, qh->qh_dma);
+ struct fotg210_qh *head;
/* Don't link a QH if there's a Clear-TT-Buffer pending */
if (unlikely(qh->clearing_tt))
@@ -3064,24 +2966,17 @@ static void qh_link_async(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
enable_async(fotg210);
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * For control/bulk/interrupt, return QH with these TDs appended.
+/* For control/bulk/interrupt, return QH with these TDs appended.
* Allocates and initializes the QH if necessary.
* Returns null if it can't allocate a QH it needs to.
* If the QH has TDs (urbs) already, that's great.
*/
-static struct fotg210_qh *qh_append_tds(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct list_head *qtd_list,
- int epnum,
- void **ptr
-)
+static struct fotg210_qh *qh_append_tds(struct fotg210_hcd *fotg210,
+ struct urb *urb, struct list_head *qtd_list,
+ int epnum, void **ptr)
{
- struct fotg210_qh *qh = NULL;
- __hc32 qh_addr_mask = cpu_to_hc32(fotg210, 0x7f);
+ struct fotg210_qh *qh = NULL;
+ __hc32 qh_addr_mask = cpu_to_hc32(fotg210, 0x7f);
qh = (struct fotg210_qh *) *ptr;
if (unlikely(qh == NULL)) {
@@ -3090,7 +2985,7 @@ static struct fotg210_qh *qh_append_tds(
*ptr = qh;
}
if (likely(qh != NULL)) {
- struct fotg210_qtd *qtd;
+ struct fotg210_qtd *qtd;
if (unlikely(list_empty(qtd_list)))
qtd = NULL;
@@ -3109,9 +3004,9 @@ static struct fotg210_qh *qh_append_tds(
* only hc or qh_refresh() ever modify the overlay.
*/
if (likely(qtd != NULL)) {
- struct fotg210_qtd *dummy;
- dma_addr_t dma;
- __hc32 token;
+ struct fotg210_qtd *dummy;
+ dma_addr_t dma;
+ __hc32 token;
/* to avoid racing the HC, use the dummy td instead of
* the first td of our list (becomes new dummy). both
@@ -3150,32 +3045,28 @@ static struct fotg210_qh *qh_append_tds(
return qh;
}
-/*-------------------------------------------------------------------------*/
-
-static int
-submit_async(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct list_head *qtd_list,
- gfp_t mem_flags
-) {
- int epnum;
- unsigned long flags;
- struct fotg210_qh *qh = NULL;
- int rc;
+static int submit_async(struct fotg210_hcd *fotg210, struct urb *urb,
+ struct list_head *qtd_list, gfp_t mem_flags)
+{
+ int epnum;
+ unsigned long flags;
+ struct fotg210_qh *qh = NULL;
+ int rc;
epnum = urb->ep->desc.bEndpointAddress;
#ifdef FOTG210_URB_TRACE
{
struct fotg210_qtd *qtd;
+
qtd = list_entry(qtd_list->next, struct fotg210_qtd, qtd_list);
fotg210_dbg(fotg210,
- "%s %s urb %p ep%d%s len %d, qtd %p [qh %p]\n",
- __func__, urb->dev->devpath, urb,
- epnum & 0x0f, (epnum & USB_DIR_IN) ? "in" : "out",
- urb->transfer_buffer_length,
- qtd, urb->ep->hcpriv);
+ "%s %s urb %p ep%d%s len %d, qtd %p [qh %p]\n",
+ __func__, urb->dev->devpath, urb,
+ epnum & 0x0f, (epnum & USB_DIR_IN)
+ ? "in" : "out",
+ urb->transfer_buffer_length,
+ qtd, urb->ep->hcpriv);
}
#endif
@@ -3200,19 +3091,17 @@ submit_async(
*/
if (likely(qh->qh_state == QH_STATE_IDLE))
qh_link_async(fotg210, qh);
- done:
+done:
spin_unlock_irqrestore(&fotg210->lock, flags);
if (unlikely(qh == NULL))
qtd_list_free(fotg210, urb, qtd_list);
return rc;
}
-/*-------------------------------------------------------------------------*/
-
static void single_unlink_async(struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh)
+ struct fotg210_qh *qh)
{
- struct fotg210_qh *prev;
+ struct fotg210_qh *prev;
/* Add to the end of the list of QHs waiting for the next IAAD */
qh->qh_state = QH_STATE_UNLINK;
@@ -3260,7 +3149,7 @@ static void start_iaa_cycle(struct fotg210_hcd *fotg210, bool nested)
&fotg210->regs->command);
fotg210_readl(fotg210, &fotg210->regs->command);
fotg210_enable_event(fotg210, FOTG210_HRTIMER_IAA_WATCHDOG,
- true);
+ true);
}
}
@@ -3268,10 +3157,10 @@ static void start_iaa_cycle(struct fotg210_hcd *fotg210, bool nested)
static void end_unlink_async(struct fotg210_hcd *fotg210)
{
- struct fotg210_qh *qh;
+ struct fotg210_qh *qh;
/* Process the idle QHs */
- restart:
+restart:
fotg210->async_unlinking = true;
while (fotg210->async_iaa) {
qh = fotg210->async_iaa;
@@ -3326,7 +3215,7 @@ static void unlink_empty_async(struct fotg210_hcd *fotg210)
/* QHs that haven't been empty for long enough will be handled later */
if (check_unlinks_later) {
fotg210_enable_event(fotg210, FOTG210_HRTIMER_ASYNC_UNLINKS,
- true);
+ true);
++fotg210->async_unlink_cycle;
}
}
@@ -3335,7 +3224,7 @@ static void unlink_empty_async(struct fotg210_hcd *fotg210)
/* caller must own fotg210->lock */
static void start_unlink_async(struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh)
+ struct fotg210_qh *qh)
{
/*
* If the QH isn't linked then there's nothing we can do
@@ -3352,18 +3241,16 @@ static void start_unlink_async(struct fotg210_hcd *fotg210,
start_iaa_cycle(fotg210, false);
}
-/*-------------------------------------------------------------------------*/
-
static void scan_async(struct fotg210_hcd *fotg210)
{
- struct fotg210_qh *qh;
- bool check_unlinks_later = false;
+ struct fotg210_qh *qh;
+ bool check_unlinks_later = false;
fotg210->qh_scan_next = fotg210->async->qh_next.qh;
while (fotg210->qh_scan_next) {
qh = fotg210->qh_scan_next;
fotg210->qh_scan_next = qh->qh_next.qh;
- rescan:
+rescan:
/* clean any finished work for this qh */
if (!list_empty(&qh->qtd_list)) {
int temp;
@@ -3395,15 +3282,13 @@ static void scan_async(struct fotg210_hcd *fotg210)
*/
if (check_unlinks_later && fotg210->rh_state == FOTG210_RH_RUNNING &&
!(fotg210->enabled_hrtimer_events &
- BIT(FOTG210_HRTIMER_ASYNC_UNLINKS))) {
+ BIT(FOTG210_HRTIMER_ASYNC_UNLINKS))) {
fotg210_enable_event(fotg210,
- FOTG210_HRTIMER_ASYNC_UNLINKS, true);
+ FOTG210_HRTIMER_ASYNC_UNLINKS, true);
++fotg210->async_unlink_cycle;
}
}
-/*-------------------------------------------------------------------------*/
-/*
- * EHCI scheduled transaction support: interrupt, iso, split iso
+/* EHCI scheduled transaction support: interrupt, iso, split iso
* These are called "periodic" transactions in the EHCI spec.
*
* Note that for interrupt transfers, the QH/QTD manipulation is shared
@@ -3414,19 +3299,14 @@ static void scan_async(struct fotg210_hcd *fotg210)
* It keeps track of every ITD (or SITD) that's linked, and holds enough
* pre-calculated schedule data to make appending to the queue be quick.
*/
-
static int fotg210_get_frame(struct usb_hcd *hcd);
-/*-------------------------------------------------------------------------*/
-
-/*
- * periodic_next_shadow - return "next" pointer on shadow list
+/* periodic_next_shadow - return "next" pointer on shadow list
* @periodic: host pointer to qh/itd
* @tag: hardware tag for type of this record
*/
-static union fotg210_shadow *
-periodic_next_shadow(struct fotg210_hcd *fotg210,
- union fotg210_shadow *periodic, __hc32 tag)
+static union fotg210_shadow *periodic_next_shadow(struct fotg210_hcd *fotg210,
+ union fotg210_shadow *periodic, __hc32 tag)
{
switch (hc32_to_cpu(fotg210, tag)) {
case Q_TYPE_QH:
@@ -3438,9 +3318,8 @@ periodic_next_shadow(struct fotg210_hcd *fotg210,
}
}
-static __hc32 *
-shadow_next_periodic(struct fotg210_hcd *fotg210,
- union fotg210_shadow *periodic, __hc32 tag)
+static __hc32 *shadow_next_periodic(struct fotg210_hcd *fotg210,
+ union fotg210_shadow *periodic, __hc32 tag)
{
switch (hc32_to_cpu(fotg210, tag)) {
/* our fotg210_shadow.qh is actually software part */
@@ -3454,11 +3333,11 @@ shadow_next_periodic(struct fotg210_hcd *fotg210,
/* caller must hold fotg210->lock */
static void periodic_unlink(struct fotg210_hcd *fotg210, unsigned frame,
- void *ptr)
+ void *ptr)
{
- union fotg210_shadow *prev_p = &fotg210->pshadow[frame];
- __hc32 *hw_p = &fotg210->periodic[frame];
- union fotg210_shadow here = *prev_p;
+ union fotg210_shadow *prev_p = &fotg210->pshadow[frame];
+ __hc32 *hw_p = &fotg210->periodic[frame];
+ union fotg210_shadow here = *prev_p;
/* find predecessor of "ptr"; hw and shadow lists are in sync */
while (here.ptr && here.ptr != ptr) {
@@ -3479,17 +3358,17 @@ static void periodic_unlink(struct fotg210_hcd *fotg210, unsigned frame,
Q_NEXT_TYPE(fotg210, *hw_p));
*hw_p = *shadow_next_periodic(fotg210, &here,
- Q_NEXT_TYPE(fotg210, *hw_p));
+ Q_NEXT_TYPE(fotg210, *hw_p));
}
/* how many of the uframe's 125 usecs are allocated? */
-static unsigned short
-periodic_usecs(struct fotg210_hcd *fotg210, unsigned frame, unsigned uframe)
+static unsigned short periodic_usecs(struct fotg210_hcd *fotg210,
+ unsigned frame, unsigned uframe)
{
- __hc32 *hw_p = &fotg210->periodic[frame];
- union fotg210_shadow *q = &fotg210->pshadow[frame];
- unsigned usecs = 0;
- struct fotg210_qh_hw *hw;
+ __hc32 *hw_p = &fotg210->periodic[frame];
+ union fotg210_shadow *q = &fotg210->pshadow[frame];
+ unsigned usecs = 0;
+ struct fotg210_qh_hw *hw;
while (q->ptr) {
switch (hc32_to_cpu(fotg210, Q_NEXT_TYPE(fotg210, *hw_p))) {
@@ -3526,12 +3405,10 @@ periodic_usecs(struct fotg210_hcd *fotg210, unsigned frame, unsigned uframe)
}
if (usecs > fotg210->uframe_periodic_max)
fotg210_err(fotg210, "uframe %d sched overrun: %d usecs\n",
- frame * 8 + uframe, usecs);
+ frame * 8 + uframe, usecs);
return usecs;
}
-/*-------------------------------------------------------------------------*/
-
static int same_tt(struct usb_device *dev1, struct usb_device *dev2)
{
if (!dev1->tt || !dev2->tt)
@@ -3548,13 +3425,8 @@ static int same_tt(struct usb_device *dev1, struct usb_device *dev2)
* for a periodic transfer starting at the specified frame, using
* all the uframes in the mask.
*/
-static int tt_no_collision(
- struct fotg210_hcd *fotg210,
- unsigned period,
- struct usb_device *dev,
- unsigned frame,
- u32 uf_mask
-)
+static int tt_no_collision(struct fotg210_hcd *fotg210, unsigned period,
+ struct usb_device *dev, unsigned frame, u32 uf_mask)
{
if (period == 0) /* error */
return 0;
@@ -3564,9 +3436,9 @@ static int tt_no_collision(
* calling convention doesn't make that distinction.
*/
for (; frame < fotg210->periodic_size; frame += period) {
- union fotg210_shadow here;
- __hc32 type;
- struct fotg210_qh_hw *hw;
+ union fotg210_shadow here;
+ __hc32 type;
+ struct fotg210_qh_hw *hw;
here = fotg210->pshadow[frame];
type = Q_NEXT_TYPE(fotg210, fotg210->periodic[frame]);
@@ -3579,7 +3451,7 @@ static int tt_no_collision(
case Q_TYPE_QH:
hw = here.qh->hw;
if (same_tt(dev, here.qh->dev)) {
- u32 mask;
+ u32 mask;
mask = hc32_to_cpu(fotg210,
hw->hw_info2);
@@ -3594,8 +3466,8 @@ static int tt_no_collision(
/* case Q_TYPE_FSTN: */
default:
fotg210_dbg(fotg210,
- "periodic frame %d bogus type %d\n",
- frame, type);
+ "periodic frame %d bogus type %d\n",
+ frame, type);
}
/* collision or error */
@@ -3607,8 +3479,6 @@ static int tt_no_collision(
return 1;
}
-/*-------------------------------------------------------------------------*/
-
static void enable_periodic(struct fotg210_hcd *fotg210)
{
if (fotg210->periodic_count++)
@@ -3632,8 +3502,6 @@ static void disable_periodic(struct fotg210_hcd *fotg210)
fotg210_poll_PSS(fotg210);
}
-/*-------------------------------------------------------------------------*/
-
/* periodic schedule slots have iso tds (normal or split) first, then a
* sparse tree for active interrupt transfers.
*
@@ -3642,24 +3510,24 @@ static void disable_periodic(struct fotg210_hcd *fotg210)
*/
static void qh_link_periodic(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
- unsigned i;
- unsigned period = qh->period;
+ unsigned i;
+ unsigned period = qh->period;
dev_dbg(&qh->dev->dev,
- "link qh%d-%04x/%p start %d [%d/%d us]\n",
- period, hc32_to_cpup(fotg210, &qh->hw->hw_info2)
- & (QH_CMASK | QH_SMASK),
- qh, qh->start, qh->usecs, qh->c_usecs);
+ "link qh%d-%04x/%p start %d [%d/%d us]\n", period,
+ hc32_to_cpup(fotg210, &qh->hw->hw_info2) &
+ (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs,
+ qh->c_usecs);
/* high bandwidth, or otherwise every microframe */
if (period == 0)
period = 1;
for (i = qh->start; i < fotg210->periodic_size; i += period) {
- union fotg210_shadow *prev = &fotg210->pshadow[i];
- __hc32 *hw_p = &fotg210->periodic[i];
- union fotg210_shadow here = *prev;
- __hc32 type = 0;
+ union fotg210_shadow *prev = &fotg210->pshadow[i];
+ __hc32 *hw_p = &fotg210->periodic[i];
+ union fotg210_shadow here = *prev;
+ __hc32 type = 0;
/* skip the iso nodes at list head */
while (here.ptr) {
@@ -3707,10 +3575,10 @@ static void qh_link_periodic(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
}
static void qh_unlink_periodic(struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh)
+ struct fotg210_qh *qh)
{
- unsigned i;
- unsigned period;
+ unsigned i;
+ unsigned period;
/*
* If qh is for a low/full-speed device, simply unlinking it
@@ -3741,10 +3609,10 @@ static void qh_unlink_periodic(struct fotg210_hcd *fotg210,
: (qh->usecs * 8);
dev_dbg(&qh->dev->dev,
- "unlink qh%d-%04x/%p start %d [%d/%d us]\n",
- qh->period,
- hc32_to_cpup(fotg210, &qh->hw->hw_info2) &
- (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs, qh->c_usecs);
+ "unlink qh%d-%04x/%p start %d [%d/%d us]\n",
+ qh->period, hc32_to_cpup(fotg210, &qh->hw->hw_info2) &
+ (QH_CMASK | QH_SMASK), qh, qh->start, qh->usecs,
+ qh->c_usecs);
/* qh->qh_next still "live" to HC */
qh->qh_state = QH_STATE_UNLINK;
@@ -3757,7 +3625,7 @@ static void qh_unlink_periodic(struct fotg210_hcd *fotg210,
}
static void start_unlink_intr(struct fotg210_hcd *fotg210,
- struct fotg210_qh *qh)
+ struct fotg210_qh *qh)
{
/* If the QH isn't linked then there's nothing we can do
* unless we were called during a giveback, in which case
@@ -3794,15 +3662,15 @@ static void start_unlink_intr(struct fotg210_hcd *fotg210,
fotg210_handle_intr_unlinks(fotg210);
else if (fotg210->intr_unlink == qh) {
fotg210_enable_event(fotg210, FOTG210_HRTIMER_UNLINK_INTR,
- true);
+ true);
++fotg210->intr_unlink_cycle;
}
}
static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
- struct fotg210_qh_hw *hw = qh->hw;
- int rc;
+ struct fotg210_qh_hw *hw = qh->hw;
+ int rc;
qh->qh_state = QH_STATE_IDLE;
hw->hw_next = FOTG210_LIST_END(fotg210);
@@ -3811,7 +3679,7 @@ static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
/* reschedule QH iff another request is queued */
if (!list_empty(&qh->qtd_list) &&
- fotg210->rh_state == FOTG210_RH_RUNNING) {
+ fotg210->rh_state == FOTG210_RH_RUNNING) {
rc = qh_schedule(fotg210, qh);
/* An error here likely indicates handshake failure
@@ -3830,16 +3698,10 @@ static void end_unlink_intr(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
disable_periodic(fotg210);
}
-/*-------------------------------------------------------------------------*/
-
-static int check_period(
- struct fotg210_hcd *fotg210,
- unsigned frame,
- unsigned uframe,
- unsigned period,
- unsigned usecs
-) {
- int claimed;
+static int check_period(struct fotg210_hcd *fotg210, unsigned frame,
+ unsigned uframe, unsigned period, unsigned usecs)
+{
+ int claimed;
/* complete split running into next frame?
* given FSTN support, we could sometimes check...
@@ -3857,7 +3719,7 @@ static int check_period(
do {
for (uframe = 0; uframe < 7; uframe++) {
claimed = periodic_usecs(fotg210, frame,
- uframe);
+ uframe);
if (claimed > usecs)
return 0;
}
@@ -3876,16 +3738,11 @@ static int check_period(
return 1;
}
-static int check_intr_schedule(
- struct fotg210_hcd *fotg210,
- unsigned frame,
- unsigned uframe,
- const struct fotg210_qh *qh,
- __hc32 *c_maskp
-)
+static int check_intr_schedule(struct fotg210_hcd *fotg210, unsigned frame,
+ unsigned uframe, const struct fotg210_qh *qh, __hc32 *c_maskp)
{
- int retval = -ENOSPC;
- u8 mask = 0;
+ int retval = -ENOSPC;
+ u8 mask = 0;
if (qh->c_usecs && uframe >= 6) /* FSTN territory? */
goto done;
@@ -3911,10 +3768,10 @@ static int check_intr_schedule(
mask |= 1 << uframe;
if (tt_no_collision(fotg210, qh->period, qh->dev, frame, mask)) {
if (!check_period(fotg210, frame, uframe + qh->gap_uf + 1,
- qh->period, qh->c_usecs))
+ qh->period, qh->c_usecs))
goto done;
if (!check_period(fotg210, frame, uframe + qh->gap_uf,
- qh->period, qh->c_usecs))
+ qh->period, qh->c_usecs))
goto done;
retval = 0;
}
@@ -3927,11 +3784,11 @@ done:
*/
static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
{
- int status;
- unsigned uframe;
- __hc32 c_mask;
- unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */
- struct fotg210_qh_hw *hw = qh->hw;
+ int status;
+ unsigned uframe;
+ __hc32 c_mask;
+ unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */
+ struct fotg210_qh_hw *hw = qh->hw;
qh_refresh(fotg210, qh);
hw->hw_next = FOTG210_LIST_END(fotg210);
@@ -3954,7 +3811,7 @@ static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
if (status) {
/* "normal" case, uframing flexible except with splits */
if (qh->period) {
- int i;
+ int i;
for (i = qh->period; status && i > 0; --i) {
frame = ++fotg210->random_frame % qh->period;
@@ -3971,7 +3828,7 @@ static int qh_schedule(struct fotg210_hcd *fotg210, struct fotg210_qh *qh)
} else {
frame = 0;
status = check_intr_schedule(fotg210, 0, 0, qh,
- &c_mask);
+ &c_mask);
}
if (status)
goto done;
@@ -3992,17 +3849,14 @@ done:
return status;
}
-static int intr_submit(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct list_head *qtd_list,
- gfp_t mem_flags
-) {
- unsigned epnum;
- unsigned long flags;
- struct fotg210_qh *qh;
- int status;
- struct list_head empty;
+static int intr_submit(struct fotg210_hcd *fotg210, struct urb *urb,
+ struct list_head *qtd_list, gfp_t mem_flags)
+{
+ unsigned epnum;
+ unsigned long flags;
+ struct fotg210_qh *qh;
+ int status;
+ struct list_head empty;
/* get endpoint and transfer/schedule data */
epnum = urb->ep->desc.bEndpointAddress;
@@ -4050,11 +3904,11 @@ done_not_linked:
static void scan_intr(struct fotg210_hcd *fotg210)
{
- struct fotg210_qh *qh;
+ struct fotg210_qh *qh;
list_for_each_entry_safe(qh, fotg210->qh_scan_next,
- &fotg210->intr_qh_list, intr_node) {
- rescan:
+ &fotg210->intr_qh_list, intr_node) {
+rescan:
/* clean any finished work for this qh */
if (!list_empty(&qh->qtd_list)) {
int temp;
@@ -4069,7 +3923,7 @@ static void scan_intr(struct fotg210_hcd *fotg210)
temp = qh_completions(fotg210, qh);
if (unlikely(qh->needs_rescan ||
(list_empty(&qh->qtd_list) &&
- qh->qh_state == QH_STATE_LINKED)))
+ qh->qh_state == QH_STATE_LINKED)))
start_unlink_intr(fotg210, qh);
else if (temp != 0)
goto rescan;
@@ -4077,12 +3931,9 @@ static void scan_intr(struct fotg210_hcd *fotg210)
}
}
-/*-------------------------------------------------------------------------*/
-
/* fotg210_iso_stream ops work with both ITD and SITD */
-static struct fotg210_iso_stream *
-iso_stream_alloc(gfp_t mem_flags)
+static struct fotg210_iso_stream *iso_stream_alloc(gfp_t mem_flags)
{
struct fotg210_iso_stream *stream;
@@ -4095,20 +3946,15 @@ iso_stream_alloc(gfp_t mem_flags)
return stream;
}
-static void
-iso_stream_init(
- struct fotg210_hcd *fotg210,
- struct fotg210_iso_stream *stream,
- struct usb_device *dev,
- int pipe,
- unsigned interval
-)
+static void iso_stream_init(struct fotg210_hcd *fotg210,
+ struct fotg210_iso_stream *stream, struct usb_device *dev,
+ int pipe, unsigned interval)
{
- u32 buf1;
- unsigned epnum, maxp;
- int is_input;
- long bandwidth;
- unsigned multi;
+ u32 buf1;
+ unsigned epnum, maxp;
+ int is_input;
+ long bandwidth;
+ unsigned multi;
/*
* this might be a "high bandwidth" highspeed endpoint,
@@ -4153,13 +3999,13 @@ iso_stream_init(
stream->maxp = maxp;
}
-static struct fotg210_iso_stream *
-iso_stream_find(struct fotg210_hcd *fotg210, struct urb *urb)
+static struct fotg210_iso_stream *iso_stream_find(struct fotg210_hcd *fotg210,
+ struct urb *urb)
{
- unsigned epnum;
- struct fotg210_iso_stream *stream;
+ unsigned epnum;
+ struct fotg210_iso_stream *stream;
struct usb_host_endpoint *ep;
- unsigned long flags;
+ unsigned long flags;
epnum = usb_pipeendpoint(urb->pipe);
if (usb_pipein(urb->pipe))
@@ -4182,8 +4028,8 @@ iso_stream_find(struct fotg210_hcd *fotg210, struct urb *urb)
/* if dev->ep[epnum] is a QH, hw is set */
} else if (unlikely(stream->hw != NULL)) {
fotg210_dbg(fotg210, "dev %s ep%d%s, not iso??\n",
- urb->dev->devpath, epnum,
- usb_pipein(urb->pipe) ? "in" : "out");
+ urb->dev->devpath, epnum,
+ usb_pipein(urb->pipe) ? "in" : "out");
stream = NULL;
}
@@ -4191,15 +4037,13 @@ iso_stream_find(struct fotg210_hcd *fotg210, struct urb *urb)
return stream;
}
-/*-------------------------------------------------------------------------*/
-
/* fotg210_iso_sched ops can be ITD-only or SITD-only */
-static struct fotg210_iso_sched *
-iso_sched_alloc(unsigned packets, gfp_t mem_flags)
+static struct fotg210_iso_sched *iso_sched_alloc(unsigned packets,
+ gfp_t mem_flags)
{
- struct fotg210_iso_sched *iso_sched;
- int size = sizeof(*iso_sched);
+ struct fotg210_iso_sched *iso_sched;
+ int size = sizeof(*iso_sched);
size += packets * sizeof(struct fotg210_iso_packet);
iso_sched = kzalloc(size, mem_flags);
@@ -4209,16 +4053,12 @@ iso_sched_alloc(unsigned packets, gfp_t mem_flags)
return iso_sched;
}
-static inline void
-itd_sched_init(
- struct fotg210_hcd *fotg210,
- struct fotg210_iso_sched *iso_sched,
- struct fotg210_iso_stream *stream,
- struct urb *urb
-)
+static inline void itd_sched_init(struct fotg210_hcd *fotg210,
+ struct fotg210_iso_sched *iso_sched,
+ struct fotg210_iso_stream *stream, struct urb *urb)
{
- unsigned i;
- dma_addr_t dma = urb->transfer_dma;
+ unsigned i;
+ dma_addr_t dma = urb->transfer_dma;
/* how many uframes are needed for these transfers */
iso_sched->span = urb->number_of_packets * stream->interval;
@@ -4227,10 +4067,10 @@ itd_sched_init(
* when we fit new itds into the schedule.
*/
for (i = 0; i < urb->number_of_packets; i++) {
- struct fotg210_iso_packet *uframe = &iso_sched->packet[i];
- unsigned length;
- dma_addr_t buf;
- u32 trans;
+ struct fotg210_iso_packet *uframe = &iso_sched->packet[i];
+ unsigned length;
+ dma_addr_t buf;
+ u32 trans;
length = urb->iso_frame_desc[i].length;
buf = dma + urb->iso_frame_desc[i].offset;
@@ -4251,11 +4091,8 @@ itd_sched_init(
}
}
-static void
-iso_sched_free(
- struct fotg210_iso_stream *stream,
- struct fotg210_iso_sched *iso_sched
-)
+static void iso_sched_free(struct fotg210_iso_stream *stream,
+ struct fotg210_iso_sched *iso_sched)
{
if (!iso_sched)
return;
@@ -4264,20 +4101,15 @@ iso_sched_free(
kfree(iso_sched);
}
-static int
-itd_urb_transaction(
- struct fotg210_iso_stream *stream,
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- gfp_t mem_flags
-)
+static int itd_urb_transaction(struct fotg210_iso_stream *stream,
+ struct fotg210_hcd *fotg210, struct urb *urb, gfp_t mem_flags)
{
- struct fotg210_itd *itd;
- dma_addr_t itd_dma;
- int i;
- unsigned num_itds;
- struct fotg210_iso_sched *sched;
- unsigned long flags;
+ struct fotg210_itd *itd;
+ dma_addr_t itd_dma;
+ int i;
+ unsigned num_itds;
+ struct fotg210_iso_sched *sched;
+ unsigned long flags;
sched = iso_sched_alloc(urb->number_of_packets, mem_flags);
if (unlikely(sched == NULL))
@@ -4306,7 +4138,7 @@ itd_urb_transaction(
list_del(&itd->itd_list);
itd_dma = itd->itd_dma;
} else {
- alloc_itd:
+alloc_itd:
spin_unlock_irqrestore(&fotg210->lock, flags);
itd = dma_pool_alloc(fotg210->itd_pool, mem_flags,
&itd_dma);
@@ -4330,16 +4162,8 @@ itd_urb_transaction(
return 0;
}
-/*-------------------------------------------------------------------------*/
-
-static inline int
-itd_slot_ok(
- struct fotg210_hcd *fotg210,
- u32 mod,
- u32 uframe,
- u8 usecs,
- u32 period
-)
+static inline int itd_slot_ok(struct fotg210_hcd *fotg210, u32 mod, u32 uframe,
+ u8 usecs, u32 period)
{
uframe %= period;
do {
@@ -4354,8 +4178,7 @@ itd_slot_ok(
return 1;
}
-/*
- * This scheduler plans almost as far into the future as it has actual
+/* This scheduler plans almost as far into the future as it has actual
* periodic schedule slots. (Affected by TUNE_FLS, which defaults to
* "as small as possible" to be cache-friendlier.) That limits the size
* transfers you can stream reliably; avoid more than 64 msec per urb.
@@ -4365,19 +4188,15 @@ itd_slot_ok(
* given FOTG210_TUNE_FLS and the slop). Or, write a smarter scheduler!
*/
-#define SCHEDULE_SLOP 80 /* microframes */
+#define SCHEDULE_SLOP 80 /* microframes */
-static int
-iso_stream_schedule(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- struct fotg210_iso_stream *stream
-)
+static int iso_stream_schedule(struct fotg210_hcd *fotg210, struct urb *urb,
+ struct fotg210_iso_stream *stream)
{
- u32 now, next, start, period, span;
- int status;
- unsigned mod = fotg210->periodic_size << 3;
- struct fotg210_iso_sched *sched = urb->hcpriv;
+ u32 now, next, start, period, span;
+ int status;
+ unsigned mod = fotg210->periodic_size << 3;
+ struct fotg210_iso_sched *sched = urb->hcpriv;
period = urb->interval;
span = sched->span;
@@ -4396,7 +4215,7 @@ iso_stream_schedule(
* slot in the schedule, implicitly assuming URB_ISO_ASAP.
*/
if (likely(!list_empty(&stream->td_list))) {
- u32 excess;
+ u32 excess;
/* For high speed devices, allow scheduling within the
* isochronous scheduling threshold. For full speed devices
@@ -4435,6 +4254,7 @@ iso_stream_schedule(
*/
else {
int done = 0;
+
start = SCHEDULE_SLOP + (now & ~0x07);
/* NOTE: assumes URB_ISO_ASAP, to limit complexity/bugs */
@@ -4457,15 +4277,15 @@ iso_stream_schedule(
/* no room in the schedule */
if (!done) {
fotg210_dbg(fotg210, "iso resched full %p (now %d max %d)\n",
- urb, now, now + mod);
+ urb, now, now + mod);
status = -ENOSPC;
goto fail;
}
}
/* Tried to schedule too far into the future? */
- if (unlikely(start - now + span - period
- >= mod - 2 * SCHEDULE_SLOP)) {
+ if (unlikely(start - now + span - period >=
+ mod - 2 * SCHEDULE_SLOP)) {
fotg210_dbg(fotg210, "request %p would overflow (%d+%d >= %d)\n",
urb, start - now, span - period,
mod - 2 * SCHEDULE_SLOP);
@@ -4485,17 +4305,14 @@ iso_stream_schedule(
fotg210->next_frame = now >> 3;
return 0;
- fail:
+fail:
iso_sched_free(stream, sched);
urb->hcpriv = NULL;
return status;
}
-/*-------------------------------------------------------------------------*/
-
-static inline void
-itd_init(struct fotg210_hcd *fotg210, struct fotg210_iso_stream *stream,
- struct fotg210_itd *itd)
+static inline void itd_init(struct fotg210_hcd *fotg210,
+ struct fotg210_iso_stream *stream, struct fotg210_itd *itd)
{
int i;
@@ -4511,17 +4328,12 @@ itd_init(struct fotg210_hcd *fotg210, struct fotg210_iso_stream *stream,
/* All other fields are filled when scheduling */
}
-static inline void
-itd_patch(
- struct fotg210_hcd *fotg210,
- struct fotg210_itd *itd,
- struct fotg210_iso_sched *iso_sched,
- unsigned index,
- u16 uframe
-)
+static inline void itd_patch(struct fotg210_hcd *fotg210,
+ struct fotg210_itd *itd, struct fotg210_iso_sched *iso_sched,
+ unsigned index, u16 uframe)
{
- struct fotg210_iso_packet *uf = &iso_sched->packet[index];
- unsigned pg = itd->pg;
+ struct fotg210_iso_packet *uf = &iso_sched->packet[index];
+ unsigned pg = itd->pg;
uframe &= 0x07;
itd->index[uframe] = index;
@@ -4533,7 +4345,7 @@ itd_patch(
/* iso_frame_desc[].offset must be strictly increasing */
if (unlikely(uf->cross)) {
- u64 bufp = uf->bufp + 4096;
+ u64 bufp = uf->bufp + 4096;
itd->pg = ++pg;
itd->hw_bufp[pg] |= cpu_to_hc32(fotg210, bufp & ~(u32)0);
@@ -4541,13 +4353,13 @@ itd_patch(
}
}
-static inline void
-itd_link(struct fotg210_hcd *fotg210, unsigned frame, struct fotg210_itd *itd)
+static inline void itd_link(struct fotg210_hcd *fotg210, unsigned frame,
+ struct fotg210_itd *itd)
{
- union fotg210_shadow *prev = &fotg210->pshadow[frame];
- __hc32 *hw_p = &fotg210->periodic[frame];
- union fotg210_shadow here = *prev;
- __hc32 type = 0;
+ union fotg210_shadow *prev = &fotg210->pshadow[frame];
+ __hc32 *hw_p = &fotg210->periodic[frame];
+ union fotg210_shadow here = *prev;
+ __hc32 type = 0;
/* skip any iso nodes which might belong to previous microframes */
while (here.ptr) {
@@ -4568,17 +4380,13 @@ itd_link(struct fotg210_hcd *fotg210, unsigned frame, struct fotg210_itd *itd)
}
/* fit urb's itds into the selected schedule slot; activate as needed */
-static void itd_link_urb(
- struct fotg210_hcd *fotg210,
- struct urb *urb,
- unsigned mod,
- struct fotg210_iso_stream *stream
-)
-{
- int packet;
- unsigned next_uframe, uframe, frame;
- struct fotg210_iso_sched *iso_sched = urb->hcpriv;
- struct fotg210_itd *itd;
+static void itd_link_urb(struct fotg210_hcd *fotg210, struct urb *urb,
+ unsigned mod, struct fotg210_iso_stream *stream)
+{
+ int packet;
+ unsigned next_uframe, uframe, frame;
+ struct fotg210_iso_sched *iso_sched = urb->hcpriv;
+ struct fotg210_itd *itd;
next_uframe = stream->next_uframe & (mod - 1);
@@ -4621,7 +4429,7 @@ static void itd_link_urb(
if (((next_uframe >> 3) != frame)
|| packet == urb->number_of_packets) {
itd_link(fotg210, frame & (fotg210->periodic_size - 1),
- itd);
+ itd);
itd = NULL;
}
}
@@ -4635,8 +4443,8 @@ static void itd_link_urb(
enable_periodic(fotg210);
}
-#define ISO_ERRS (FOTG210_ISOC_BUF_ERR | FOTG210_ISOC_BABBLE |\
- FOTG210_ISOC_XACTERR)
+#define ISO_ERRS (FOTG210_ISOC_BUF_ERR | FOTG210_ISOC_BABBLE |\
+ FOTG210_ISOC_XACTERR)
/* Process and recycle a completed ITD. Return true iff its urb completed,
* and hence its completion callback probably added things to the hardware
@@ -4650,14 +4458,14 @@ static void itd_link_urb(
*/
static bool itd_complete(struct fotg210_hcd *fotg210, struct fotg210_itd *itd)
{
- struct urb *urb = itd->urb;
- struct usb_iso_packet_descriptor *desc;
- u32 t;
- unsigned uframe;
- int urb_index = -1;
- struct fotg210_iso_stream *stream = itd->stream;
- struct usb_device *dev;
- bool retval = false;
+ struct urb *urb = itd->urb;
+ struct usb_iso_packet_descriptor *desc;
+ u32 t;
+ unsigned uframe;
+ int urb_index = -1;
+ struct fotg210_iso_stream *stream = itd->stream;
+ struct usb_device *dev;
+ bool retval = false;
/* for each uframe with a packet */
for (uframe = 0; uframe < 8; uframe++) {
@@ -4702,8 +4510,8 @@ static bool itd_complete(struct fotg210_hcd *fotg210, struct fotg210_itd *itd)
goto done;
/* ASSERT: it's really the last itd for this urb
- list_for_each_entry (itd, &stream->td_list, itd_list)
- BUG_ON (itd->urb == urb);
+ * list_for_each_entry (itd, &stream->td_list, itd_list)
+ * BUG_ON (itd->urb == urb);
*/
/* give urb back to the driver; completion often (re)submits */
@@ -4740,14 +4548,12 @@ done:
return retval;
}
-/*-------------------------------------------------------------------------*/
-
static int itd_submit(struct fotg210_hcd *fotg210, struct urb *urb,
- gfp_t mem_flags)
+ gfp_t mem_flags)
{
- int status = -EINVAL;
- unsigned long flags;
- struct fotg210_iso_stream *stream;
+ int status = -EINVAL;
+ unsigned long flags;
+ struct fotg210_iso_stream *stream;
/* Get iso_stream head */
stream = iso_stream_find(fotg210, urb);
@@ -4756,22 +4562,22 @@ static int itd_submit(struct fotg210_hcd *fotg210, struct urb *urb,
return -ENOMEM;
}
if (unlikely(urb->interval != stream->interval &&
- fotg210_port_speed(fotg210, 0) ==
- USB_PORT_STAT_HIGH_SPEED)) {
- fotg210_dbg(fotg210, "can't change iso interval %d --> %d\n",
+ fotg210_port_speed(fotg210, 0) ==
+ USB_PORT_STAT_HIGH_SPEED)) {
+ fotg210_dbg(fotg210, "can't change iso interval %d --> %d\n",
stream->interval, urb->interval);
- goto done;
+ goto done;
}
#ifdef FOTG210_URB_TRACE
fotg210_dbg(fotg210,
- "%s %s urb %p ep%d%s len %d, %d pkts %d uframes[%p]\n",
- __func__, urb->dev->devpath, urb,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out",
- urb->transfer_buffer_length,
- urb->number_of_packets, urb->interval,
- stream);
+ "%s %s urb %p ep%d%s len %d, %d pkts %d uframes[%p]\n",
+ __func__, urb->dev->devpath, urb,
+ usb_pipeendpoint(urb->pipe),
+ usb_pipein(urb->pipe) ? "in" : "out",
+ urb->transfer_buffer_length,
+ urb->number_of_packets, urb->interval,
+ stream);
#endif
/* allocate ITDs w/o locking anything */
@@ -4795,19 +4601,87 @@ static int itd_submit(struct fotg210_hcd *fotg210, struct urb *urb,
itd_link_urb(fotg210, urb, fotg210->periodic_size << 3, stream);
else
usb_hcd_unlink_urb_from_ep(fotg210_to_hcd(fotg210), urb);
- done_not_linked:
+done_not_linked:
spin_unlock_irqrestore(&fotg210->lock, flags);
- done:
+done:
return status;
}
-/*-------------------------------------------------------------------------*/
+static inline int scan_frame_queue(struct fotg210_hcd *fotg210, unsigned frame,
+ unsigned now_frame, bool live)
+{
+ unsigned uf;
+ bool modified;
+ union fotg210_shadow q, *q_p;
+ __hc32 type, *hw_p;
+
+ /* scan each element in frame's queue for completions */
+ q_p = &fotg210->pshadow[frame];
+ hw_p = &fotg210->periodic[frame];
+ q.ptr = q_p->ptr;
+ type = Q_NEXT_TYPE(fotg210, *hw_p);
+ modified = false;
+
+ while (q.ptr) {
+ switch (hc32_to_cpu(fotg210, type)) {
+ case Q_TYPE_ITD:
+ /* If this ITD is still active, leave it for
+ * later processing ... check the next entry.
+ * No need to check for activity unless the
+ * frame is current.
+ */
+ if (frame == now_frame && live) {
+ rmb();
+ for (uf = 0; uf < 8; uf++) {
+ if (q.itd->hw_transaction[uf] &
+ ITD_ACTIVE(fotg210))
+ break;
+ }
+ if (uf < 8) {
+ q_p = &q.itd->itd_next;
+ hw_p = &q.itd->hw_next;
+ type = Q_NEXT_TYPE(fotg210,
+ q.itd->hw_next);
+ q = *q_p;
+ break;
+ }
+ }
+
+ /* Take finished ITDs out of the schedule
+ * and process them: recycle, maybe report
+ * URB completion. HC won't cache the
+ * pointer for much longer, if at all.
+ */
+ *q_p = q.itd->itd_next;
+ *hw_p = q.itd->hw_next;
+ type = Q_NEXT_TYPE(fotg210, q.itd->hw_next);
+ wmb();
+ modified = itd_complete(fotg210, q.itd);
+ q = *q_p;
+ break;
+ default:
+ fotg210_dbg(fotg210, "corrupt type %d frame %d shadow %p\n",
+ type, frame, q.ptr);
+ /* FALL THROUGH */
+ case Q_TYPE_QH:
+ case Q_TYPE_FSTN:
+ /* End of the iTDs and siTDs */
+ q.ptr = NULL;
+ break;
+ }
+
+ /* assume completion callbacks modify the queue */
+ if (unlikely(modified && fotg210->isoc_count > 0))
+ return -EINVAL;
+ }
+ return 0;
+}
static void scan_isoc(struct fotg210_hcd *fotg210)
{
- unsigned uf, now_frame, frame;
- unsigned fmask = fotg210->periodic_size - 1;
- bool modified, live;
+ unsigned uf, now_frame, frame, ret;
+ unsigned fmask = fotg210->periodic_size - 1;
+ bool live;
/*
* When running, scan from last scan point up to "now"
@@ -4826,69 +4700,10 @@ static void scan_isoc(struct fotg210_hcd *fotg210)
frame = fotg210->next_frame;
for (;;) {
- union fotg210_shadow q, *q_p;
- __hc32 type, *hw_p;
-
-restart:
- /* scan each element in frame's queue for completions */
- q_p = &fotg210->pshadow[frame];
- hw_p = &fotg210->periodic[frame];
- q.ptr = q_p->ptr;
- type = Q_NEXT_TYPE(fotg210, *hw_p);
- modified = false;
-
- while (q.ptr != NULL) {
- switch (hc32_to_cpu(fotg210, type)) {
- case Q_TYPE_ITD:
- /* If this ITD is still active, leave it for
- * later processing ... check the next entry.
- * No need to check for activity unless the
- * frame is current.
- */
- if (frame == now_frame && live) {
- rmb();
- for (uf = 0; uf < 8; uf++) {
- if (q.itd->hw_transaction[uf] &
- ITD_ACTIVE(fotg210))
- break;
- }
- if (uf < 8) {
- q_p = &q.itd->itd_next;
- hw_p = &q.itd->hw_next;
- type = Q_NEXT_TYPE(fotg210,
- q.itd->hw_next);
- q = *q_p;
- break;
- }
- }
-
- /* Take finished ITDs out of the schedule
- * and process them: recycle, maybe report
- * URB completion. HC won't cache the
- * pointer for much longer, if at all.
- */
- *q_p = q.itd->itd_next;
- *hw_p = q.itd->hw_next;
- type = Q_NEXT_TYPE(fotg210, q.itd->hw_next);
- wmb();
- modified = itd_complete(fotg210, q.itd);
- q = *q_p;
- break;
- default:
- fotg210_dbg(fotg210, "corrupt type %d frame %d shadow %p\n",
- type, frame, q.ptr);
- /* FALL THROUGH */
- case Q_TYPE_QH:
- case Q_TYPE_FSTN:
- /* End of the iTDs and siTDs */
- q.ptr = NULL;
- break;
- }
-
- /* assume completion callbacks modify the queue */
- if (unlikely(modified && fotg210->isoc_count > 0))
- goto restart;
- }
+ ret = 1;
+ while (ret != 0)
+ ret = scan_frame_queue(fotg210, frame,
+ now_frame, live);
/* Stop when we have reached the current frame */
if (frame == now_frame)
@@ -4897,16 +4712,14 @@ restart:
}
fotg210->next_frame = now_frame;
}
-/*-------------------------------------------------------------------------*/
-/*
- * Display / Set uframe_periodic_max
+
+/* Display / Set uframe_periodic_max
*/
static ssize_t show_uframe_periodic_max(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr, char *buf)
{
- struct fotg210_hcd *fotg210;
- int n;
+ struct fotg210_hcd *fotg210;
+ int n;
fotg210 = hcd_to_fotg210(bus_to_hcd(dev_get_drvdata(dev)));
n = scnprintf(buf, PAGE_SIZE, "%d\n", fotg210->uframe_periodic_max);
@@ -4915,15 +4728,14 @@ static ssize_t show_uframe_periodic_max(struct device *dev,
static ssize_t store_uframe_periodic_max(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+ struct device_attribute *attr, const char *buf, size_t count)
{
- struct fotg210_hcd *fotg210;
- unsigned uframe_periodic_max;
- unsigned frame, uframe;
- unsigned short allocated_max;
- unsigned long flags;
- ssize_t ret;
+ struct fotg210_hcd *fotg210;
+ unsigned uframe_periodic_max;
+ unsigned frame, uframe;
+ unsigned short allocated_max;
+ unsigned long flags;
+ ssize_t ret;
fotg210 = hcd_to_fotg210(bus_to_hcd(dev_get_drvdata(dev)));
if (kstrtouint(buf, 0, &uframe_periodic_max) < 0)
@@ -4931,7 +4743,7 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
if (uframe_periodic_max < 100 || uframe_periodic_max >= 125) {
fotg210_info(fotg210, "rejecting invalid request for uframe_periodic_max=%u\n",
- uframe_periodic_max);
+ uframe_periodic_max);
return -EINVAL;
}
@@ -4954,22 +4766,22 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
for (frame = 0; frame < fotg210->periodic_size; ++frame)
for (uframe = 0; uframe < 7; ++uframe)
allocated_max = max(allocated_max,
- periodic_usecs(fotg210, frame, uframe));
+ periodic_usecs(fotg210, frame,
+ uframe));
if (allocated_max > uframe_periodic_max) {
fotg210_info(fotg210,
- "cannot decrease uframe_periodic_max because "
- "periodic bandwidth is already allocated "
- "(%u > %u)\n",
- allocated_max, uframe_periodic_max);
+ "cannot decrease uframe_periodic_max because periodic bandwidth is already allocated (%u > %u)\n",
+ allocated_max, uframe_periodic_max);
goto out_unlock;
}
}
/* increasing is always ok */
- fotg210_info(fotg210, "setting max periodic bandwidth to %u%% (== %u usec/uframe)\n",
- 100 * uframe_periodic_max/125, uframe_periodic_max);
+ fotg210_info(fotg210,
+ "setting max periodic bandwidth to %u%% (== %u usec/uframe)\n",
+ 100 * uframe_periodic_max/125, uframe_periodic_max);
if (uframe_periodic_max != 100)
fotg210_warn(fotg210, "max periodic bandwidth set is non-standard\n");
@@ -4987,8 +4799,8 @@ static DEVICE_ATTR(uframe_periodic_max, 0644, show_uframe_periodic_max,
static inline int create_sysfs_files(struct fotg210_hcd *fotg210)
{
- struct device *controller = fotg210_to_hcd(fotg210)->self.controller;
- int i = 0;
+ struct device *controller = fotg210_to_hcd(fotg210)->self.controller;
+ int i = 0;
if (i)
goto out;
@@ -5000,12 +4812,10 @@ out:
static inline void remove_sysfs_files(struct fotg210_hcd *fotg210)
{
- struct device *controller = fotg210_to_hcd(fotg210)->self.controller;
+ struct device *controller = fotg210_to_hcd(fotg210)->self.controller;
device_remove_file(controller, &dev_attr_uframe_periodic_max);
}
-/*-------------------------------------------------------------------------*/
-
/* On some systems, leaving remote wakeup enabled prevents system shutdown.
* The firmware seems to think that powering off is a wakeup event!
* This routine turns off remote wakeup and everything else, on all ports.
@@ -5017,8 +4827,7 @@ static void fotg210_turn_off_all_ports(struct fotg210_hcd *fotg210)
fotg210_writel(fotg210, PORT_RWC_BITS, status_reg);
}
-/*
- * Halt HC, turn off all ports, and let the BIOS use the companion controllers.
+/* Halt HC, turn off all ports, and let the BIOS use the companion controllers.
* Must be called with interrupts enabled and the lock not held.
*/
static void fotg210_silence_controller(struct fotg210_hcd *fotg210)
@@ -5037,7 +4846,7 @@ static void fotg210_silence_controller(struct fotg210_hcd *fotg210)
*/
static void fotg210_shutdown(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
spin_lock_irq(&fotg210->lock);
fotg210->shutdown = true;
@@ -5050,10 +4859,7 @@ static void fotg210_shutdown(struct usb_hcd *hcd)
hrtimer_cancel(&fotg210->hrtimer);
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * fotg210_work is called from some interrupts, timers, and so on.
+/* fotg210_work is called from some interrupts, timers, and so on.
* it calls driver completion functions, after dropping fotg210->lock.
*/
static void fotg210_work(struct fotg210_hcd *fotg210)
@@ -5068,7 +4874,7 @@ static void fotg210_work(struct fotg210_hcd *fotg210)
}
fotg210->scanning = true;
- rescan:
+rescan:
fotg210->need_rescan = false;
if (fotg210->async_count)
scan_async(fotg210);
@@ -5087,12 +4893,11 @@ static void fotg210_work(struct fotg210_hcd *fotg210)
turn_on_io_watchdog(fotg210);
}
-/*
- * Called when the fotg210_hcd module is removed.
+/* Called when the fotg210_hcd module is removed.
*/
static void fotg210_stop(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
fotg210_dbg(fotg210, "stop\n");
@@ -5116,26 +4921,26 @@ static void fotg210_stop(struct usb_hcd *hcd)
spin_unlock_irq(&fotg210->lock);
fotg210_mem_cleanup(fotg210);
-#ifdef FOTG210_STATS
+#ifdef FOTG210_STATS
fotg210_dbg(fotg210, "irq normal %ld err %ld iaa %ld (lost %ld)\n",
- fotg210->stats.normal, fotg210->stats.error, fotg210->stats.iaa,
- fotg210->stats.lost_iaa);
+ fotg210->stats.normal, fotg210->stats.error,
+ fotg210->stats.iaa, fotg210->stats.lost_iaa);
fotg210_dbg(fotg210, "complete %ld unlink %ld\n",
- fotg210->stats.complete, fotg210->stats.unlink);
+ fotg210->stats.complete, fotg210->stats.unlink);
#endif
dbg_status(fotg210, "fotg210_stop completed",
- fotg210_readl(fotg210, &fotg210->regs->status));
+ fotg210_readl(fotg210, &fotg210->regs->status));
}
/* one-time init, only for memory state */
static int hcd_fotg210_init(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- u32 temp;
- int retval;
- u32 hcc_params;
- struct fotg210_qh_hw *hw;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ u32 temp;
+ int retval;
+ u32 hcc_params;
+ struct fotg210_qh_hw *hw;
spin_lock_init(&fotg210->lock);
@@ -5238,18 +5043,18 @@ static int hcd_fotg210_init(struct usb_hcd *hcd)
/* start HC running; it's halted, hcd_fotg210_init() has been run (once) */
static int fotg210_run(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- u32 temp;
- u32 hcc_params;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ u32 temp;
+ u32 hcc_params;
hcd->uses_new_polling = 1;
/* EHCI spec section 4.1 */
fotg210_writel(fotg210, fotg210->periodic_dma,
- &fotg210->regs->frame_list);
+ &fotg210->regs->frame_list);
fotg210_writel(fotg210, (u32)fotg210->async->qh_dma,
- &fotg210->regs->async_next);
+ &fotg210->regs->async_next);
/*
* hcc_params controls whether fotg210->regs->segment must (!!!)
@@ -5258,7 +5063,7 @@ static int fotg210_run(struct usb_hcd *hcd)
* streaming mappings for I/O buffers, like pci_map_single(),
* can return segments above 4GB, if the device allows.
*
- * NOTE: the dma mask is visible through dma_supported(), so
+ * NOTE: the dma mask is visible through dev->dma_mask, so
* drivers can pass this info along ... like NETIF_F_HIGHDMA,
* Scsi_Host.highmem_io, and so forth. It's readonly to all
* host side drivers though.
@@ -5292,19 +5097,19 @@ static int fotg210_run(struct usb_hcd *hcd)
fotg210->rh_state = FOTG210_RH_RUNNING;
/* unblock posted writes */
fotg210_readl(fotg210, &fotg210->regs->command);
- msleep(5);
+ usleep_range(5000, 10000);
up_write(&ehci_cf_port_reset_rwsem);
fotg210->last_periodic_enable = ktime_get_real();
temp = HC_VERSION(fotg210,
- fotg210_readl(fotg210, &fotg210->caps->hc_capbase));
+ fotg210_readl(fotg210, &fotg210->caps->hc_capbase));
fotg210_info(fotg210,
- "USB %x.%x started, EHCI %x.%02x\n",
- ((fotg210->sbrn & 0xf0)>>4), (fotg210->sbrn & 0x0f),
- temp >> 8, temp & 0xff);
+ "USB %x.%x started, EHCI %x.%02x\n",
+ ((fotg210->sbrn & 0xf0) >> 4), (fotg210->sbrn & 0x0f),
+ temp >> 8, temp & 0xff);
fotg210_writel(fotg210, INTR_MASK,
- &fotg210->regs->intr_enable); /* Turn On Interrupts */
+ &fotg210->regs->intr_enable); /* Turn On Interrupts */
/* GRR this is run-once init(), being done every time the HC starts.
* So long as they're part of class devices, we can't do it init()
@@ -5322,14 +5127,14 @@ static int fotg210_setup(struct usb_hcd *hcd)
int retval;
fotg210->regs = (void __iomem *)fotg210->caps +
- HC_LENGTH(fotg210,
- fotg210_readl(fotg210, &fotg210->caps->hc_capbase));
+ HC_LENGTH(fotg210,
+ fotg210_readl(fotg210, &fotg210->caps->hc_capbase));
dbg_hcs_params(fotg210, "reset");
dbg_hcc_params(fotg210, "reset");
/* cache this readonly data; minimize chip reads */
fotg210->hcs_params = fotg210_readl(fotg210,
- &fotg210->caps->hcs_params);
+ &fotg210->caps->hcs_params);
fotg210->sbrn = HCD_USB2;
@@ -5347,13 +5152,11 @@ static int fotg210_setup(struct usb_hcd *hcd)
return 0;
}
-/*-------------------------------------------------------------------------*/
-
static irqreturn_t fotg210_irq(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- u32 status, masked_status, pcd_status = 0, cmd;
- int bh;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ u32 status, masked_status, pcd_status = 0, cmd;
+ int bh;
spin_lock(&fotg210->lock);
@@ -5373,7 +5176,7 @@ static irqreturn_t fotg210_irq(struct usb_hcd *hcd)
/* Shared IRQ? */
if (!masked_status ||
- unlikely(fotg210->rh_state == FOTG210_RH_HALTED)) {
+ unlikely(fotg210->rh_state == FOTG210_RH_HALTED)) {
spin_unlock(&fotg210->lock);
return IRQ_NONE;
}
@@ -5440,7 +5243,7 @@ static irqreturn_t fotg210_irq(struct usb_hcd *hcd)
if (test_bit(0, &fotg210->suspended_ports) &&
((pstatus & PORT_RESUME) ||
- !(pstatus & PORT_SUSPEND)) &&
+ !(pstatus & PORT_SUSPEND)) &&
(pstatus & PORT_PE) &&
fotg210->reset_done[0] == 0) {
@@ -5469,7 +5272,7 @@ dead:
fotg210->rh_state = FOTG210_RH_STOPPING;
fotg210->command &= ~(CMD_RUN | CMD_ASE | CMD_PSE);
fotg210_writel(fotg210, fotg210->command,
- &fotg210->regs->command);
+ &fotg210->regs->command);
fotg210_writel(fotg210, 0, &fotg210->regs->intr_enable);
fotg210_handle_controller_death(fotg210);
@@ -5485,10 +5288,7 @@ dead:
return IRQ_HANDLED;
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * non-error returns are a promise to giveback() the urb later
+/* non-error returns are a promise to giveback() the urb later
* we drop ownership so next owner (or urb unlink) can get it
*
* urb + dev is in hcd.self.controller.urb_list
@@ -5499,13 +5299,11 @@ dead:
* NOTE: control, bulk, and interrupt share the same code to append TDs
* to a (possibly active) QH, and the same QH scanning code.
*/
-static int fotg210_urb_enqueue(
- struct usb_hcd *hcd,
- struct urb *urb,
- gfp_t mem_flags
-) {
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- struct list_head qtd_list;
+static int fotg210_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
+ gfp_t mem_flags)
+{
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct list_head qtd_list;
INIT_LIST_HEAD(&qtd_list);
@@ -5539,10 +5337,10 @@ static int fotg210_urb_enqueue(
static int fotg210_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- struct fotg210_qh *qh;
- unsigned long flags;
- int rc;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_qh *qh;
+ unsigned long flags;
+ int rc;
spin_lock_irqsave(&fotg210->lock, flags);
rc = usb_hcd_check_unlink_urb(hcd, urb, status);
@@ -5603,16 +5401,14 @@ done:
return rc;
}
-/*-------------------------------------------------------------------------*/
-
/* bulk qh holds the data toggle */
-static void
-fotg210_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
+static void fotg210_endpoint_disable(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- unsigned long flags;
- struct fotg210_qh *qh, *tmp;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ unsigned long flags;
+ struct fotg210_qh *qh, *tmp;
/* ASSERT: any requests/urbs are being unlinked */
/* ASSERT: nobody can be submitting urbs for this any more */
@@ -5627,7 +5423,7 @@ rescan:
* accelerate iso completions ... so spin a while.
*/
if (qh->hw == NULL) {
- struct fotg210_iso_stream *stream = ep->hcpriv;
+ struct fotg210_iso_stream *stream = ep->hcpriv;
if (!list_empty(&stream->td_list))
goto idle_timeout;
@@ -5671,24 +5467,24 @@ idle_timeout:
* that's not our job. just leak this memory.
*/
fotg210_err(fotg210, "qh %p (#%02x) state %d%s\n",
- qh, ep->desc.bEndpointAddress, qh->qh_state,
- list_empty(&qh->qtd_list) ? "" : "(has tds)");
+ qh, ep->desc.bEndpointAddress, qh->qh_state,
+ list_empty(&qh->qtd_list) ? "" : "(has tds)");
break;
}
- done:
+done:
ep->hcpriv = NULL;
spin_unlock_irqrestore(&fotg210->lock, flags);
}
-static void
-fotg210_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
+static void fotg210_endpoint_reset(struct usb_hcd *hcd,
+ struct usb_host_endpoint *ep)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
- struct fotg210_qh *qh;
- int eptype = usb_endpoint_type(&ep->desc);
- int epnum = usb_endpoint_num(&ep->desc);
- int is_out = usb_endpoint_dir_out(&ep->desc);
- unsigned long flags;
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_qh *qh;
+ int eptype = usb_endpoint_type(&ep->desc);
+ int epnum = usb_endpoint_num(&ep->desc);
+ int is_out = usb_endpoint_dir_out(&ep->desc);
+ unsigned long flags;
if (eptype != USB_ENDPOINT_XFER_BULK && eptype != USB_ENDPOINT_XFER_INT)
return;
@@ -5723,15 +5519,13 @@ fotg210_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
static int fotg210_get_frame(struct usb_hcd *hcd)
{
- struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+ struct fotg210_hcd *fotg210 = hcd_to_fotg210(hcd);
+
return (fotg210_read_frame_index(fotg210) >> 3) %
fotg210->periodic_size;
}
-/*-------------------------------------------------------------------------*/
-
-/*
- * The EHCI in ChipIdea HDRC cannot be a separate module or device,
+/* The EHCI in ChipIdea HDRC cannot be a separate module or device,
* because its registers (and irq) are shared between host/gadget/otg
* functions and in order to facilitate role switching we cannot
* give the fotg210 driver exclusive access to those.
@@ -5791,7 +5585,7 @@ static void fotg210_init(struct fotg210_hcd *fotg210)
u32 value;
iowrite32(GMIR_MDEV_INT | GMIR_MOTG_INT | GMIR_INT_POLARITY,
- &fotg210->regs->gmir);
+ &fotg210->regs->gmir);
value = ioread32(&fotg210->regs->otgcsr);
value &= ~OTGCSR_A_BUS_DROP;
@@ -5808,12 +5602,12 @@ static void fotg210_init(struct fotg210_hcd *fotg210)
*/
static int fotg210_hcd_probe(struct platform_device *pdev)
{
- struct device *dev = &pdev->dev;
- struct usb_hcd *hcd;
- struct resource *res;
- int irq;
- int retval = -ENODEV;
- struct fotg210_hcd *fotg210;
+ struct device *dev = &pdev->dev;
+ struct usb_hcd *hcd;
+ struct resource *res;
+ int irq;
+ int retval = -ENODEV;
+ struct fotg210_hcd *fotg210;
if (usb_disabled())
return -ENODEV;
@@ -5822,9 +5616,8 @@ static int fotg210_hcd_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
- dev_err(dev,
- "Found HC with no IRQ. Check %s setup!\n",
- dev_name(dev));
+ dev_err(dev, "Found HC with no IRQ. Check %s setup!\n",
+ dev_name(dev));
return -ENODEV;
}
@@ -5883,8 +5676,8 @@ fail_create_hcd:
*/
static int fotg210_hcd_remove(struct platform_device *pdev)
{
- struct device *dev = &pdev->dev;
- struct usb_hcd *hcd = dev_get_drvdata(dev);
+ struct device *dev = &pdev->dev;
+ struct usb_hcd *hcd = dev_get_drvdata(dev);
if (!hcd)
return 0;
@@ -5914,12 +5707,12 @@ static int __init fotg210_hcd_init(void)
set_bit(USB_EHCI_LOADED, &usb_hcds_loaded);
if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) ||
test_bit(USB_OHCI_LOADED, &usb_hcds_loaded))
- pr_warn(KERN_WARNING "Warning! fotg210_hcd should always be loaded before uhci_hcd and ohci_hcd, not after\n");
+ pr_warn("Warning! fotg210_hcd should always be loaded before uhci_hcd and ohci_hcd, not after\n");
pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd\n",
- hcd_name,
- sizeof(struct fotg210_qh), sizeof(struct fotg210_qtd),
- sizeof(struct fotg210_itd));
+ hcd_name, sizeof(struct fotg210_qh),
+ sizeof(struct fotg210_qtd),
+ sizeof(struct fotg210_itd));
fotg210_debug_root = debugfs_create_dir("fotg210", usb_debug_root);
if (!fotg210_debug_root) {
@@ -5932,7 +5725,6 @@ static int __init fotg210_hcd_init(void)
goto clean;
return retval;
- platform_driver_unregister(&fotg210_hcd_driver);
clean:
debugfs_remove(fotg210_debug_root);
fotg210_debug_root = NULL;
diff --git a/kernel/drivers/usb/host/fotg210.h b/kernel/drivers/usb/host/fotg210.h
index 3bad17859..b5cfa7aeb 100644
--- a/kernel/drivers/usb/host/fotg210.h
+++ b/kernel/drivers/usb/host/fotg210.h
@@ -137,19 +137,25 @@ struct fotg210_hcd { /* one per controller */
/* per root hub port */
unsigned long reset_done[FOTG210_MAX_ROOT_PORTS];
- /* bit vectors (one bit per port) */
- unsigned long bus_suspended; /* which ports were
- already suspended at the start of a bus suspend */
- unsigned long companion_ports; /* which ports are
- dedicated to the companion controller */
- unsigned long owned_ports; /* which ports are
- owned by the companion during a bus suspend */
- unsigned long port_c_suspend; /* which ports have
- the change-suspend feature turned on */
- unsigned long suspended_ports; /* which ports are
- suspended */
- unsigned long resuming_ports; /* which ports have
- started to resume */
+ /* bit vectors (one bit per port)
+ * which ports were already suspended at the start of a bus suspend
+ */
+ unsigned long bus_suspended;
+
+ /* which ports are edicated to the companion controller */
+ unsigned long companion_ports;
+
+ /* which ports are owned by the companion during a bus suspend */
+ unsigned long owned_ports;
+
+ /* which ports have the change-suspend feature turned on */
+ unsigned long port_c_suspend;
+
+ /* which ports are suspended */
+ unsigned long suspended_ports;
+
+ /* which ports have started to resume */
+ unsigned long resuming_ports;
/* per-HC memory pools (could be per-bus, but ...) */
struct dma_pool *qh_pool; /* qh per active urb */
@@ -585,10 +591,10 @@ struct fotg210_fstn {
/* Prepare the PORTSC wakeup flags during controller suspend/resume */
#define fotg210_prepare_ports_for_controller_suspend(fotg210, do_wakeup) \
- fotg210_adjust_port_wakeup_flags(fotg210, true, do_wakeup);
+ fotg210_adjust_port_wakeup_flags(fotg210, true, do_wakeup)
#define fotg210_prepare_ports_for_controller_resume(fotg210) \
- fotg210_adjust_port_wakeup_flags(fotg210, false, false);
+ fotg210_adjust_port_wakeup_flags(fotg210, false, false)
/*-------------------------------------------------------------------------*/
diff --git a/kernel/drivers/usb/host/fsl-mph-dr-of.c b/kernel/drivers/usb/host/fsl-mph-dr-of.c
index 7e325e90d..0c382652a 100644
--- a/kernel/drivers/usb/host/fsl-mph-dr-of.c
+++ b/kernel/drivers/usb/host/fsl-mph-dr-of.c
@@ -69,6 +69,8 @@ static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
return FSL_USB2_PHY_UTMI;
if (!strcasecmp(phy_type, "utmi_wide"))
return FSL_USB2_PHY_UTMI_WIDE;
+ if (!strcasecmp(phy_type, "utmi_dual"))
+ return FSL_USB2_PHY_UTMI_DUAL;
if (!strcasecmp(phy_type, "serial"))
return FSL_USB2_PHY_SERIAL;
@@ -119,13 +121,15 @@ error:
static const struct of_device_id fsl_usb2_mph_dr_of_match[];
-static int usb_get_ver_info(struct device_node *np)
+static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node *np)
{
- int ver = -1;
+ enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE;
/*
* returns 1 for usb controller version 1.6
* returns 2 for usb controller version 2.2
+ * returns 3 for usb controller version 2.4
+ * returns 4 for usb controller version 2.5
* returns 0 otherwise
*/
if (of_device_is_compatible(np, "fsl-usb2-dr")) {
@@ -135,10 +139,12 @@ static int usb_get_ver_info(struct device_node *np)
ver = FSL_USB_VER_2_2;
else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))
ver = FSL_USB_VER_2_4;
+ else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5"))
+ ver = FSL_USB_VER_2_5;
else /* for previous controller versions */
ver = FSL_USB_VER_OLD;
- if (ver > -1)
+ if (ver > FSL_USB_VER_NONE)
return ver;
}
@@ -150,6 +156,10 @@ static int usb_get_ver_info(struct device_node *np)
ver = FSL_USB_VER_1_6;
else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))
ver = FSL_USB_VER_2_2;
+ else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4"))
+ ver = FSL_USB_VER_2_4;
+ else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5"))
+ ver = FSL_USB_VER_2_5;
else /* for previous controller versions */
ver = FSL_USB_VER_OLD;
}
@@ -206,8 +216,27 @@ static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
pdata->phy_mode = determine_usb_phy(prop);
pdata->controller_ver = usb_get_ver_info(np);
+ /* Activate Erratum by reading property in device tree */
+ if (of_get_property(np, "fsl,usb-erratum-a007792", NULL))
+ pdata->has_fsl_erratum_a007792 = 1;
+ else
+ pdata->has_fsl_erratum_a007792 = 0;
+ if (of_get_property(np, "fsl,usb-erratum-a005275", NULL))
+ pdata->has_fsl_erratum_a005275 = 1;
+ else
+ pdata->has_fsl_erratum_a005275 = 0;
+
+ /*
+ * Determine whether phy_clk_valid needs to be checked
+ * by reading property in device tree
+ */
+ if (of_get_property(np, "phy-clk-valid", NULL))
+ pdata->check_phy_clk_valid = 1;
+ else
+ pdata->check_phy_clk_valid = 0;
+
if (pdata->have_sysif_regs) {
- if (pdata->controller_ver < 0) {
+ if (pdata->controller_ver == FSL_USB_VER_NONE) {
dev_warn(&ofdev->dev, "Could not get controller version\n");
return -ENODEV;
}
@@ -322,6 +351,7 @@ static const struct of_device_id fsl_usb2_mph_dr_of_match[] = {
#endif
{},
};
+MODULE_DEVICE_TABLE(of, fsl_usb2_mph_dr_of_match);
static struct platform_driver fsl_usb2_mph_dr_driver = {
.driver = {
diff --git a/kernel/drivers/usb/host/fusbh200-hcd.c b/kernel/drivers/usb/host/fusbh200-hcd.c
deleted file mode 100644
index 00e492eab..000000000
--- a/kernel/drivers/usb/host/fusbh200-hcd.c
+++ /dev/null
@@ -1,5893 +0,0 @@
-/*
- * Faraday FUSBH200 EHCI-like driver
- *
- * Copyright (c) 2013 Faraday Technology Corporation
- *
- * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com>
- * Feng-Hsin Chiang <john453@faraday-tech.com>
- * Po-Yu Chuang <ratbert.chuang@gmail.com>
- *
- * Most of code borrowed from the Linux-3.7 EHCI driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/dmapool.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/vmalloc.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/hrtimer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/moduleparam.h>
-#include <linux/dma-mapping.h>
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/platform_device.h>
-
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/unaligned.h>
-
-/*-------------------------------------------------------------------------*/
-#define DRIVER_AUTHOR "Yuan-Hsin Chen"
-#define DRIVER_DESC "FUSBH200 Host Controller (EHCI) Driver"
-
-static const char hcd_name [] = "fusbh200_hcd";
-
-#undef FUSBH200_URB_TRACE
-
-/* magic numbers that can affect system performance */
-#define FUSBH200_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
-#define FUSBH200_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
-#define FUSBH200_TUNE_RL_TT 0
-#define FUSBH200_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
-#define FUSBH200_TUNE_MULT_TT 1
-/*
- * Some drivers think it's safe to schedule isochronous transfers more than
- * 256 ms into the future (partly as a result of an old bug in the scheduling
- * code). In an attempt to avoid trouble, we will use a minimum scheduling
- * length of 512 frames instead of 256.
- */
-#define FUSBH200_TUNE_FLS 1 /* (medium) 512-frame schedule */
-
-/* Initial IRQ latency: faster than hw default */
-static int log2_irq_thresh = 0; // 0 to 6
-module_param (log2_irq_thresh, int, S_IRUGO);
-MODULE_PARM_DESC (log2_irq_thresh, "log2 IRQ latency, 1-64 microframes");
-
-/* initial park setting: slower than hw default */
-static unsigned park = 0;
-module_param (park, uint, S_IRUGO);
-MODULE_PARM_DESC (park, "park setting; 1-3 back-to-back async packets");
-
-/* for link power management(LPM) feature */
-static unsigned int hird;
-module_param(hird, int, S_IRUGO);
-MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us");
-
-#define INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT)
-
-#include "fusbh200.h"
-
-/*-------------------------------------------------------------------------*/
-
-#define fusbh200_dbg(fusbh200, fmt, args...) \
- dev_dbg (fusbh200_to_hcd(fusbh200)->self.controller , fmt , ## args )
-#define fusbh200_err(fusbh200, fmt, args...) \
- dev_err (fusbh200_to_hcd(fusbh200)->self.controller , fmt , ## args )
-#define fusbh200_info(fusbh200, fmt, args...) \
- dev_info (fusbh200_to_hcd(fusbh200)->self.controller , fmt , ## args )
-#define fusbh200_warn(fusbh200, fmt, args...) \
- dev_warn (fusbh200_to_hcd(fusbh200)->self.controller , fmt , ## args )
-
-/* check the values in the HCSPARAMS register
- * (host controller _Structural_ parameters)
- * see EHCI spec, Table 2-4 for each value
- */
-static void dbg_hcs_params (struct fusbh200_hcd *fusbh200, char *label)
-{
- u32 params = fusbh200_readl(fusbh200, &fusbh200->caps->hcs_params);
-
- fusbh200_dbg (fusbh200,
- "%s hcs_params 0x%x ports=%d\n",
- label, params,
- HCS_N_PORTS (params)
- );
-}
-
-/* check the values in the HCCPARAMS register
- * (host controller _Capability_ parameters)
- * see EHCI Spec, Table 2-5 for each value
- * */
-static void dbg_hcc_params (struct fusbh200_hcd *fusbh200, char *label)
-{
- u32 params = fusbh200_readl(fusbh200, &fusbh200->caps->hcc_params);
-
- fusbh200_dbg (fusbh200,
- "%s hcc_params %04x uframes %s%s\n",
- label,
- params,
- HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
- HCC_CANPARK(params) ? " park" : "");
-}
-
-static void __maybe_unused
-dbg_qtd (const char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd)
-{
- fusbh200_dbg(fusbh200, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd,
- hc32_to_cpup(fusbh200, &qtd->hw_next),
- hc32_to_cpup(fusbh200, &qtd->hw_alt_next),
- hc32_to_cpup(fusbh200, &qtd->hw_token),
- hc32_to_cpup(fusbh200, &qtd->hw_buf [0]));
- if (qtd->hw_buf [1])
- fusbh200_dbg(fusbh200, " p1=%08x p2=%08x p3=%08x p4=%08x\n",
- hc32_to_cpup(fusbh200, &qtd->hw_buf[1]),
- hc32_to_cpup(fusbh200, &qtd->hw_buf[2]),
- hc32_to_cpup(fusbh200, &qtd->hw_buf[3]),
- hc32_to_cpup(fusbh200, &qtd->hw_buf[4]));
-}
-
-static void __maybe_unused
-dbg_qh (const char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- struct fusbh200_qh_hw *hw = qh->hw;
-
- fusbh200_dbg (fusbh200, "%s qh %p n%08x info %x %x qtd %x\n", label,
- qh, hw->hw_next, hw->hw_info1, hw->hw_info2, hw->hw_current);
- dbg_qtd("overlay", fusbh200, (struct fusbh200_qtd *) &hw->hw_qtd_next);
-}
-
-static void __maybe_unused
-dbg_itd (const char *label, struct fusbh200_hcd *fusbh200, struct fusbh200_itd *itd)
-{
- fusbh200_dbg (fusbh200, "%s [%d] itd %p, next %08x, urb %p\n",
- label, itd->frame, itd, hc32_to_cpu(fusbh200, itd->hw_next),
- itd->urb);
- fusbh200_dbg (fusbh200,
- " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n",
- hc32_to_cpu(fusbh200, itd->hw_transaction[0]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[1]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[2]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[3]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[4]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[5]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[6]),
- hc32_to_cpu(fusbh200, itd->hw_transaction[7]));
- fusbh200_dbg (fusbh200,
- " buf: %08x %08x %08x %08x %08x %08x %08x\n",
- hc32_to_cpu(fusbh200, itd->hw_bufp[0]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[1]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[2]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[3]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[4]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[5]),
- hc32_to_cpu(fusbh200, itd->hw_bufp[6]));
- fusbh200_dbg (fusbh200, " index: %d %d %d %d %d %d %d %d\n",
- itd->index[0], itd->index[1], itd->index[2],
- itd->index[3], itd->index[4], itd->index[5],
- itd->index[6], itd->index[7]);
-}
-
-static int __maybe_unused
-dbg_status_buf (char *buf, unsigned len, const char *label, u32 status)
-{
- return scnprintf (buf, len,
- "%s%sstatus %04x%s%s%s%s%s%s%s%s%s%s",
- label, label [0] ? " " : "", status,
- (status & STS_ASS) ? " Async" : "",
- (status & STS_PSS) ? " Periodic" : "",
- (status & STS_RECL) ? " Recl" : "",
- (status & STS_HALT) ? " Halt" : "",
- (status & STS_IAA) ? " IAA" : "",
- (status & STS_FATAL) ? " FATAL" : "",
- (status & STS_FLR) ? " FLR" : "",
- (status & STS_PCD) ? " PCD" : "",
- (status & STS_ERR) ? " ERR" : "",
- (status & STS_INT) ? " INT" : ""
- );
-}
-
-static int __maybe_unused
-dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable)
-{
- return scnprintf (buf, len,
- "%s%sintrenable %02x%s%s%s%s%s%s",
- label, label [0] ? " " : "", enable,
- (enable & STS_IAA) ? " IAA" : "",
- (enable & STS_FATAL) ? " FATAL" : "",
- (enable & STS_FLR) ? " FLR" : "",
- (enable & STS_PCD) ? " PCD" : "",
- (enable & STS_ERR) ? " ERR" : "",
- (enable & STS_INT) ? " INT" : ""
- );
-}
-
-static const char *const fls_strings [] =
- { "1024", "512", "256", "??" };
-
-static int
-dbg_command_buf (char *buf, unsigned len, const char *label, u32 command)
-{
- return scnprintf (buf, len,
- "%s%scommand %07x %s=%d ithresh=%d%s%s%s "
- "period=%s%s %s",
- label, label [0] ? " " : "", command,
- (command & CMD_PARK) ? " park" : "(park)",
- CMD_PARK_CNT (command),
- (command >> 16) & 0x3f,
- (command & CMD_IAAD) ? " IAAD" : "",
- (command & CMD_ASE) ? " Async" : "",
- (command & CMD_PSE) ? " Periodic" : "",
- fls_strings [(command >> 2) & 0x3],
- (command & CMD_RESET) ? " Reset" : "",
- (command & CMD_RUN) ? "RUN" : "HALT"
- );
-}
-
-static int
-dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status)
-{
- char *sig;
-
- /* signaling state */
- switch (status & (3 << 10)) {
- case 0 << 10: sig = "se0"; break;
- case 1 << 10: sig = "k"; break; /* low speed */
- case 2 << 10: sig = "j"; break;
- default: sig = "?"; break;
- }
-
- return scnprintf (buf, len,
- "%s%sport:%d status %06x %d "
- "sig=%s%s%s%s%s%s%s%s",
- label, label [0] ? " " : "", port, status,
- status>>25,/*device address */
- sig,
- (status & PORT_RESET) ? " RESET" : "",
- (status & PORT_SUSPEND) ? " SUSPEND" : "",
- (status & PORT_RESUME) ? " RESUME" : "",
- (status & PORT_PEC) ? " PEC" : "",
- (status & PORT_PE) ? " PE" : "",
- (status & PORT_CSC) ? " CSC" : "",
- (status & PORT_CONNECT) ? " CONNECT" : "");
-}
-
-/* functions have the "wrong" filename when they're output... */
-#define dbg_status(fusbh200, label, status) { \
- char _buf [80]; \
- dbg_status_buf (_buf, sizeof _buf, label, status); \
- fusbh200_dbg (fusbh200, "%s\n", _buf); \
-}
-
-#define dbg_cmd(fusbh200, label, command) { \
- char _buf [80]; \
- dbg_command_buf (_buf, sizeof _buf, label, command); \
- fusbh200_dbg (fusbh200, "%s\n", _buf); \
-}
-
-#define dbg_port(fusbh200, label, port, status) { \
- char _buf [80]; \
- dbg_port_buf (_buf, sizeof _buf, label, port, status); \
- fusbh200_dbg (fusbh200, "%s\n", _buf); \
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* troubleshooting help: expose state in debugfs */
-
-static int debug_async_open(struct inode *, struct file *);
-static int debug_periodic_open(struct inode *, struct file *);
-static int debug_registers_open(struct inode *, struct file *);
-static int debug_async_open(struct inode *, struct file *);
-
-static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
-static int debug_close(struct inode *, struct file *);
-
-static const struct file_operations debug_async_fops = {
- .owner = THIS_MODULE,
- .open = debug_async_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-static const struct file_operations debug_periodic_fops = {
- .owner = THIS_MODULE,
- .open = debug_periodic_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-static const struct file_operations debug_registers_fops = {
- .owner = THIS_MODULE,
- .open = debug_registers_open,
- .read = debug_output,
- .release = debug_close,
- .llseek = default_llseek,
-};
-
-static struct dentry *fusbh200_debug_root;
-
-struct debug_buffer {
- ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
- struct usb_bus *bus;
- struct mutex mutex; /* protect filling of buffer */
- size_t count; /* number of characters filled into buffer */
- char *output_buf;
- size_t alloc_size;
-};
-
-#define speed_char(info1) ({ char tmp; \
- switch (info1 & (3 << 12)) { \
- case QH_FULL_SPEED: tmp = 'f'; break; \
- case QH_LOW_SPEED: tmp = 'l'; break; \
- case QH_HIGH_SPEED: tmp = 'h'; break; \
- default: tmp = '?'; break; \
- } tmp; })
-
-static inline char token_mark(struct fusbh200_hcd *fusbh200, __hc32 token)
-{
- __u32 v = hc32_to_cpu(fusbh200, token);
-
- if (v & QTD_STS_ACTIVE)
- return '*';
- if (v & QTD_STS_HALT)
- return '-';
- if (!IS_SHORT_READ (v))
- return ' ';
- /* tries to advance through hw_alt_next */
- return '/';
-}
-
-static void qh_lines (
- struct fusbh200_hcd *fusbh200,
- struct fusbh200_qh *qh,
- char **nextp,
- unsigned *sizep
-)
-{
- u32 scratch;
- u32 hw_curr;
- struct fusbh200_qtd *td;
- unsigned temp;
- unsigned size = *sizep;
- char *next = *nextp;
- char mark;
- __le32 list_end = FUSBH200_LIST_END(fusbh200);
- struct fusbh200_qh_hw *hw = qh->hw;
-
- if (hw->hw_qtd_next == list_end) /* NEC does this */
- mark = '@';
- else
- mark = token_mark(fusbh200, hw->hw_token);
- if (mark == '/') { /* qh_alt_next controls qh advance? */
- if ((hw->hw_alt_next & QTD_MASK(fusbh200))
- == fusbh200->async->hw->hw_alt_next)
- mark = '#'; /* blocked */
- else if (hw->hw_alt_next == list_end)
- mark = '.'; /* use hw_qtd_next */
- /* else alt_next points to some other qtd */
- }
- scratch = hc32_to_cpup(fusbh200, &hw->hw_info1);
- hw_curr = (mark == '*') ? hc32_to_cpup(fusbh200, &hw->hw_current) : 0;
- temp = scnprintf (next, size,
- "qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)",
- qh, scratch & 0x007f,
- speed_char (scratch),
- (scratch >> 8) & 0x000f,
- scratch, hc32_to_cpup(fusbh200, &hw->hw_info2),
- hc32_to_cpup(fusbh200, &hw->hw_token), mark,
- (cpu_to_hc32(fusbh200, QTD_TOGGLE) & hw->hw_token)
- ? "data1" : "data0",
- (hc32_to_cpup(fusbh200, &hw->hw_alt_next) >> 1) & 0x0f);
- size -= temp;
- next += temp;
-
- /* hc may be modifying the list as we read it ... */
- list_for_each_entry(td, &qh->qtd_list, qtd_list) {
- scratch = hc32_to_cpup(fusbh200, &td->hw_token);
- mark = ' ';
- if (hw_curr == td->qtd_dma)
- mark = '*';
- else if (hw->hw_qtd_next == cpu_to_hc32(fusbh200, td->qtd_dma))
- mark = '+';
- else if (QTD_LENGTH (scratch)) {
- if (td->hw_alt_next == fusbh200->async->hw->hw_alt_next)
- mark = '#';
- else if (td->hw_alt_next != list_end)
- mark = '/';
- }
- temp = snprintf (next, size,
- "\n\t%p%c%s len=%d %08x urb %p",
- td, mark, ({ char *tmp;
- switch ((scratch>>8)&0x03) {
- case 0: tmp = "out"; break;
- case 1: tmp = "in"; break;
- case 2: tmp = "setup"; break;
- default: tmp = "?"; break;
- } tmp;}),
- (scratch >> 16) & 0x7fff,
- scratch,
- td->urb);
- if (size < temp)
- temp = size;
- size -= temp;
- next += temp;
- if (temp == size)
- goto done;
- }
-
- temp = snprintf (next, size, "\n");
- if (size < temp)
- temp = size;
- size -= temp;
- next += temp;
-
-done:
- *sizep = size;
- *nextp = next;
-}
-
-static ssize_t fill_async_buffer(struct debug_buffer *buf)
-{
- struct usb_hcd *hcd;
- struct fusbh200_hcd *fusbh200;
- unsigned long flags;
- unsigned temp, size;
- char *next;
- struct fusbh200_qh *qh;
-
- hcd = bus_to_hcd(buf->bus);
- fusbh200 = hcd_to_fusbh200 (hcd);
- next = buf->output_buf;
- size = buf->alloc_size;
-
- *next = 0;
-
- /* dumps a snapshot of the async schedule.
- * usually empty except for long-term bulk reads, or head.
- * one QH per line, and TDs we know about
- */
- spin_lock_irqsave (&fusbh200->lock, flags);
- for (qh = fusbh200->async->qh_next.qh; size > 0 && qh; qh = qh->qh_next.qh)
- qh_lines (fusbh200, qh, &next, &size);
- if (fusbh200->async_unlink && size > 0) {
- temp = scnprintf(next, size, "\nunlink =\n");
- size -= temp;
- next += temp;
-
- for (qh = fusbh200->async_unlink; size > 0 && qh;
- qh = qh->unlink_next)
- qh_lines (fusbh200, qh, &next, &size);
- }
- spin_unlock_irqrestore (&fusbh200->lock, flags);
-
- return strlen(buf->output_buf);
-}
-
-#define DBG_SCHED_LIMIT 64
-static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
-{
- struct usb_hcd *hcd;
- struct fusbh200_hcd *fusbh200;
- unsigned long flags;
- union fusbh200_shadow p, *seen;
- unsigned temp, size, seen_count;
- char *next;
- unsigned i;
- __hc32 tag;
-
- if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
- return 0;
- seen_count = 0;
-
- hcd = bus_to_hcd(buf->bus);
- fusbh200 = hcd_to_fusbh200 (hcd);
- next = buf->output_buf;
- size = buf->alloc_size;
-
- temp = scnprintf (next, size, "size = %d\n", fusbh200->periodic_size);
- size -= temp;
- next += temp;
-
- /* dump a snapshot of the periodic schedule.
- * iso changes, interrupt usually doesn't.
- */
- spin_lock_irqsave (&fusbh200->lock, flags);
- for (i = 0; i < fusbh200->periodic_size; i++) {
- p = fusbh200->pshadow [i];
- if (likely (!p.ptr))
- continue;
- tag = Q_NEXT_TYPE(fusbh200, fusbh200->periodic [i]);
-
- temp = scnprintf (next, size, "%4d: ", i);
- size -= temp;
- next += temp;
-
- do {
- struct fusbh200_qh_hw *hw;
-
- switch (hc32_to_cpu(fusbh200, tag)) {
- case Q_TYPE_QH:
- hw = p.qh->hw;
- temp = scnprintf (next, size, " qh%d-%04x/%p",
- p.qh->period,
- hc32_to_cpup(fusbh200,
- &hw->hw_info2)
- /* uframe masks */
- & (QH_CMASK | QH_SMASK),
- p.qh);
- size -= temp;
- next += temp;
- /* don't repeat what follows this qh */
- for (temp = 0; temp < seen_count; temp++) {
- if (seen [temp].ptr != p.ptr)
- continue;
- if (p.qh->qh_next.ptr) {
- temp = scnprintf (next, size,
- " ...");
- size -= temp;
- next += temp;
- }
- break;
- }
- /* show more info the first time around */
- if (temp == seen_count) {
- u32 scratch = hc32_to_cpup(fusbh200,
- &hw->hw_info1);
- struct fusbh200_qtd *qtd;
- char *type = "";
-
- /* count tds, get ep direction */
- temp = 0;
- list_for_each_entry (qtd,
- &p.qh->qtd_list,
- qtd_list) {
- temp++;
- switch (0x03 & (hc32_to_cpu(
- fusbh200,
- qtd->hw_token) >> 8)) {
- case 0: type = "out"; continue;
- case 1: type = "in"; continue;
- }
- }
-
- temp = scnprintf (next, size,
- " (%c%d ep%d%s "
- "[%d/%d] q%d p%d)",
- speed_char (scratch),
- scratch & 0x007f,
- (scratch >> 8) & 0x000f, type,
- p.qh->usecs, p.qh->c_usecs,
- temp,
- 0x7ff & (scratch >> 16));
-
- if (seen_count < DBG_SCHED_LIMIT)
- seen [seen_count++].qh = p.qh;
- } else
- temp = 0;
- tag = Q_NEXT_TYPE(fusbh200, hw->hw_next);
- p = p.qh->qh_next;
- break;
- case Q_TYPE_FSTN:
- temp = scnprintf (next, size,
- " fstn-%8x/%p", p.fstn->hw_prev,
- p.fstn);
- tag = Q_NEXT_TYPE(fusbh200, p.fstn->hw_next);
- p = p.fstn->fstn_next;
- break;
- case Q_TYPE_ITD:
- temp = scnprintf (next, size,
- " itd/%p", p.itd);
- tag = Q_NEXT_TYPE(fusbh200, p.itd->hw_next);
- p = p.itd->itd_next;
- break;
- }
- size -= temp;
- next += temp;
- } while (p.ptr);
-
- temp = scnprintf (next, size, "\n");
- size -= temp;
- next += temp;
- }
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- kfree (seen);
-
- return buf->alloc_size - size;
-}
-#undef DBG_SCHED_LIMIT
-
-static const char *rh_state_string(struct fusbh200_hcd *fusbh200)
-{
- switch (fusbh200->rh_state) {
- case FUSBH200_RH_HALTED:
- return "halted";
- case FUSBH200_RH_SUSPENDED:
- return "suspended";
- case FUSBH200_RH_RUNNING:
- return "running";
- case FUSBH200_RH_STOPPING:
- return "stopping";
- }
- return "?";
-}
-
-static ssize_t fill_registers_buffer(struct debug_buffer *buf)
-{
- struct usb_hcd *hcd;
- struct fusbh200_hcd *fusbh200;
- unsigned long flags;
- unsigned temp, size, i;
- char *next, scratch [80];
- static char fmt [] = "%*s\n";
- static char label [] = "";
-
- hcd = bus_to_hcd(buf->bus);
- fusbh200 = hcd_to_fusbh200 (hcd);
- next = buf->output_buf;
- size = buf->alloc_size;
-
- spin_lock_irqsave (&fusbh200->lock, flags);
-
- if (!HCD_HW_ACCESSIBLE(hcd)) {
- size = scnprintf (next, size,
- "bus %s, device %s\n"
- "%s\n"
- "SUSPENDED (no register access)\n",
- hcd->self.controller->bus->name,
- dev_name(hcd->self.controller),
- hcd->product_desc);
- goto done;
- }
-
- /* Capability Registers */
- i = HC_VERSION(fusbh200, fusbh200_readl(fusbh200, &fusbh200->caps->hc_capbase));
- temp = scnprintf (next, size,
- "bus %s, device %s\n"
- "%s\n"
- "EHCI %x.%02x, rh state %s\n",
- hcd->self.controller->bus->name,
- dev_name(hcd->self.controller),
- hcd->product_desc,
- i >> 8, i & 0x0ff, rh_state_string(fusbh200));
- size -= temp;
- next += temp;
-
- // FIXME interpret both types of params
- i = fusbh200_readl(fusbh200, &fusbh200->caps->hcs_params);
- temp = scnprintf (next, size, "structural params 0x%08x\n", i);
- size -= temp;
- next += temp;
-
- i = fusbh200_readl(fusbh200, &fusbh200->caps->hcc_params);
- temp = scnprintf (next, size, "capability params 0x%08x\n", i);
- size -= temp;
- next += temp;
-
- /* Operational Registers */
- temp = dbg_status_buf (scratch, sizeof scratch, label,
- fusbh200_readl(fusbh200, &fusbh200->regs->status));
- temp = scnprintf (next, size, fmt, temp, scratch);
- size -= temp;
- next += temp;
-
- temp = dbg_command_buf (scratch, sizeof scratch, label,
- fusbh200_readl(fusbh200, &fusbh200->regs->command));
- temp = scnprintf (next, size, fmt, temp, scratch);
- size -= temp;
- next += temp;
-
- temp = dbg_intr_buf (scratch, sizeof scratch, label,
- fusbh200_readl(fusbh200, &fusbh200->regs->intr_enable));
- temp = scnprintf (next, size, fmt, temp, scratch);
- size -= temp;
- next += temp;
-
- temp = scnprintf (next, size, "uframe %04x\n",
- fusbh200_read_frame_index(fusbh200));
- size -= temp;
- next += temp;
-
- if (fusbh200->async_unlink) {
- temp = scnprintf(next, size, "async unlink qh %p\n",
- fusbh200->async_unlink);
- size -= temp;
- next += temp;
- }
-
- temp = scnprintf (next, size,
- "irq normal %ld err %ld iaa %ld (lost %ld)\n",
- fusbh200->stats.normal, fusbh200->stats.error, fusbh200->stats.iaa,
- fusbh200->stats.lost_iaa);
- size -= temp;
- next += temp;
-
- temp = scnprintf (next, size, "complete %ld unlink %ld\n",
- fusbh200->stats.complete, fusbh200->stats.unlink);
- size -= temp;
- next += temp;
-
-done:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
-
- return buf->alloc_size - size;
-}
-
-static struct debug_buffer *alloc_buffer(struct usb_bus *bus,
- ssize_t (*fill_func)(struct debug_buffer *))
-{
- struct debug_buffer *buf;
-
- buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
-
- if (buf) {
- buf->bus = bus;
- buf->fill_func = fill_func;
- mutex_init(&buf->mutex);
- buf->alloc_size = PAGE_SIZE;
- }
-
- return buf;
-}
-
-static int fill_buffer(struct debug_buffer *buf)
-{
- int ret = 0;
-
- if (!buf->output_buf)
- buf->output_buf = vmalloc(buf->alloc_size);
-
- if (!buf->output_buf) {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = buf->fill_func(buf);
-
- if (ret >= 0) {
- buf->count = ret;
- ret = 0;
- }
-
-out:
- return ret;
-}
-
-static ssize_t debug_output(struct file *file, char __user *user_buf,
- size_t len, loff_t *offset)
-{
- struct debug_buffer *buf = file->private_data;
- int ret = 0;
-
- mutex_lock(&buf->mutex);
- if (buf->count == 0) {
- ret = fill_buffer(buf);
- if (ret != 0) {
- mutex_unlock(&buf->mutex);
- goto out;
- }
- }
- mutex_unlock(&buf->mutex);
-
- ret = simple_read_from_buffer(user_buf, len, offset,
- buf->output_buf, buf->count);
-
-out:
- return ret;
-
-}
-
-static int debug_close(struct inode *inode, struct file *file)
-{
- struct debug_buffer *buf = file->private_data;
-
- if (buf) {
- vfree(buf->output_buf);
- kfree(buf);
- }
-
- return 0;
-}
-static int debug_async_open(struct inode *inode, struct file *file)
-{
- file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
-
- return file->private_data ? 0 : -ENOMEM;
-}
-
-static int debug_periodic_open(struct inode *inode, struct file *file)
-{
- struct debug_buffer *buf;
- buf = alloc_buffer(inode->i_private, fill_periodic_buffer);
- if (!buf)
- return -ENOMEM;
-
- buf->alloc_size = (sizeof(void *) == 4 ? 6 : 8)*PAGE_SIZE;
- file->private_data = buf;
- return 0;
-}
-
-static int debug_registers_open(struct inode *inode, struct file *file)
-{
- file->private_data = alloc_buffer(inode->i_private,
- fill_registers_buffer);
-
- return file->private_data ? 0 : -ENOMEM;
-}
-
-static inline void create_debug_files (struct fusbh200_hcd *fusbh200)
-{
- struct usb_bus *bus = &fusbh200_to_hcd(fusbh200)->self;
-
- fusbh200->debug_dir = debugfs_create_dir(bus->bus_name, fusbh200_debug_root);
- if (!fusbh200->debug_dir)
- return;
-
- if (!debugfs_create_file("async", S_IRUGO, fusbh200->debug_dir, bus,
- &debug_async_fops))
- goto file_error;
-
- if (!debugfs_create_file("periodic", S_IRUGO, fusbh200->debug_dir, bus,
- &debug_periodic_fops))
- goto file_error;
-
- if (!debugfs_create_file("registers", S_IRUGO, fusbh200->debug_dir, bus,
- &debug_registers_fops))
- goto file_error;
-
- return;
-
-file_error:
- debugfs_remove_recursive(fusbh200->debug_dir);
-}
-
-static inline void remove_debug_files (struct fusbh200_hcd *fusbh200)
-{
- debugfs_remove_recursive(fusbh200->debug_dir);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * handshake - spin reading hc until handshake completes or fails
- * @ptr: address of hc register to be read
- * @mask: bits to look at in result of read
- * @done: value of those bits when handshake succeeds
- * @usec: timeout in microseconds
- *
- * Returns negative errno, or zero on success
- *
- * Success happens when the "mask" bits have the specified value (hardware
- * handshake done). There are two failure modes: "usec" have passed (major
- * hardware flakeout), or the register reads as all-ones (hardware removed).
- *
- * That last failure should_only happen in cases like physical cardbus eject
- * before driver shutdown. But it also seems to be caused by bugs in cardbus
- * bridge shutdown: shutting down the bridge before the devices using it.
- */
-static int handshake (struct fusbh200_hcd *fusbh200, void __iomem *ptr,
- u32 mask, u32 done, int usec)
-{
- u32 result;
-
- do {
- result = fusbh200_readl(fusbh200, ptr);
- if (result == ~(u32)0) /* card removed */
- return -ENODEV;
- result &= mask;
- if (result == done)
- return 0;
- udelay (1);
- usec--;
- } while (usec > 0);
- return -ETIMEDOUT;
-}
-
-/*
- * Force HC to halt state from unknown (EHCI spec section 2.3).
- * Must be called with interrupts enabled and the lock not held.
- */
-static int fusbh200_halt (struct fusbh200_hcd *fusbh200)
-{
- u32 temp;
-
- spin_lock_irq(&fusbh200->lock);
-
- /* disable any irqs left enabled by previous code */
- fusbh200_writel(fusbh200, 0, &fusbh200->regs->intr_enable);
-
- /*
- * This routine gets called during probe before fusbh200->command
- * has been initialized, so we can't rely on its value.
- */
- fusbh200->command &= ~CMD_RUN;
- temp = fusbh200_readl(fusbh200, &fusbh200->regs->command);
- temp &= ~(CMD_RUN | CMD_IAAD);
- fusbh200_writel(fusbh200, temp, &fusbh200->regs->command);
-
- spin_unlock_irq(&fusbh200->lock);
- synchronize_irq(fusbh200_to_hcd(fusbh200)->irq);
-
- return handshake(fusbh200, &fusbh200->regs->status,
- STS_HALT, STS_HALT, 16 * 125);
-}
-
-/*
- * Reset a non-running (STS_HALT == 1) controller.
- * Must be called with interrupts enabled and the lock not held.
- */
-static int fusbh200_reset (struct fusbh200_hcd *fusbh200)
-{
- int retval;
- u32 command = fusbh200_readl(fusbh200, &fusbh200->regs->command);
-
- /* If the EHCI debug controller is active, special care must be
- * taken before and after a host controller reset */
- if (fusbh200->debug && !dbgp_reset_prep(fusbh200_to_hcd(fusbh200)))
- fusbh200->debug = NULL;
-
- command |= CMD_RESET;
- dbg_cmd (fusbh200, "reset", command);
- fusbh200_writel(fusbh200, command, &fusbh200->regs->command);
- fusbh200->rh_state = FUSBH200_RH_HALTED;
- fusbh200->next_statechange = jiffies;
- retval = handshake (fusbh200, &fusbh200->regs->command,
- CMD_RESET, 0, 250 * 1000);
-
- if (retval)
- return retval;
-
- if (fusbh200->debug)
- dbgp_external_startup(fusbh200_to_hcd(fusbh200));
-
- fusbh200->port_c_suspend = fusbh200->suspended_ports =
- fusbh200->resuming_ports = 0;
- return retval;
-}
-
-/*
- * Idle the controller (turn off the schedules).
- * Must be called with interrupts enabled and the lock not held.
- */
-static void fusbh200_quiesce (struct fusbh200_hcd *fusbh200)
-{
- u32 temp;
-
- if (fusbh200->rh_state != FUSBH200_RH_RUNNING)
- return;
-
- /* wait for any schedule enables/disables to take effect */
- temp = (fusbh200->command << 10) & (STS_ASS | STS_PSS);
- handshake(fusbh200, &fusbh200->regs->status, STS_ASS | STS_PSS, temp, 16 * 125);
-
- /* then disable anything that's still active */
- spin_lock_irq(&fusbh200->lock);
- fusbh200->command &= ~(CMD_ASE | CMD_PSE);
- fusbh200_writel(fusbh200, fusbh200->command, &fusbh200->regs->command);
- spin_unlock_irq(&fusbh200->lock);
-
- /* hardware can take 16 microframes to turn off ... */
- handshake(fusbh200, &fusbh200->regs->status, STS_ASS | STS_PSS, 0, 16 * 125);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void end_unlink_async(struct fusbh200_hcd *fusbh200);
-static void unlink_empty_async(struct fusbh200_hcd *fusbh200);
-static void fusbh200_work(struct fusbh200_hcd *fusbh200);
-static void start_unlink_intr(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh);
-static void end_unlink_intr(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh);
-
-/*-------------------------------------------------------------------------*/
-
-/* Set a bit in the USBCMD register */
-static void fusbh200_set_command_bit(struct fusbh200_hcd *fusbh200, u32 bit)
-{
- fusbh200->command |= bit;
- fusbh200_writel(fusbh200, fusbh200->command, &fusbh200->regs->command);
-
- /* unblock posted write */
- fusbh200_readl(fusbh200, &fusbh200->regs->command);
-}
-
-/* Clear a bit in the USBCMD register */
-static void fusbh200_clear_command_bit(struct fusbh200_hcd *fusbh200, u32 bit)
-{
- fusbh200->command &= ~bit;
- fusbh200_writel(fusbh200, fusbh200->command, &fusbh200->regs->command);
-
- /* unblock posted write */
- fusbh200_readl(fusbh200, &fusbh200->regs->command);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * EHCI timer support... Now using hrtimers.
- *
- * Lots of different events are triggered from fusbh200->hrtimer. Whenever
- * the timer routine runs, it checks each possible event; events that are
- * currently enabled and whose expiration time has passed get handled.
- * The set of enabled events is stored as a collection of bitflags in
- * fusbh200->enabled_hrtimer_events, and they are numbered in order of
- * increasing delay values (ranging between 1 ms and 100 ms).
- *
- * Rather than implementing a sorted list or tree of all pending events,
- * we keep track only of the lowest-numbered pending event, in
- * fusbh200->next_hrtimer_event. Whenever fusbh200->hrtimer gets restarted, its
- * expiration time is set to the timeout value for this event.
- *
- * As a result, events might not get handled right away; the actual delay
- * could be anywhere up to twice the requested delay. This doesn't
- * matter, because none of the events are especially time-critical. The
- * ones that matter most all have a delay of 1 ms, so they will be
- * handled after 2 ms at most, which is okay. In addition to this, we
- * allow for an expiration range of 1 ms.
- */
-
-/*
- * Delay lengths for the hrtimer event types.
- * Keep this list sorted by delay length, in the same order as
- * the event types indexed by enum fusbh200_hrtimer_event in fusbh200.h.
- */
-static unsigned event_delays_ns[] = {
- 1 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_POLL_ASS */
- 1 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_POLL_PSS */
- 1 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_POLL_DEAD */
- 1125 * NSEC_PER_USEC, /* FUSBH200_HRTIMER_UNLINK_INTR */
- 2 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_FREE_ITDS */
- 6 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_ASYNC_UNLINKS */
- 10 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_IAA_WATCHDOG */
- 10 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_DISABLE_PERIODIC */
- 15 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_DISABLE_ASYNC */
- 100 * NSEC_PER_MSEC, /* FUSBH200_HRTIMER_IO_WATCHDOG */
-};
-
-/* Enable a pending hrtimer event */
-static void fusbh200_enable_event(struct fusbh200_hcd *fusbh200, unsigned event,
- bool resched)
-{
- ktime_t *timeout = &fusbh200->hr_timeouts[event];
-
- if (resched)
- *timeout = ktime_add(ktime_get(),
- ktime_set(0, event_delays_ns[event]));
- fusbh200->enabled_hrtimer_events |= (1 << event);
-
- /* Track only the lowest-numbered pending event */
- if (event < fusbh200->next_hrtimer_event) {
- fusbh200->next_hrtimer_event = event;
- hrtimer_start_range_ns(&fusbh200->hrtimer, *timeout,
- NSEC_PER_MSEC, HRTIMER_MODE_ABS);
- }
-}
-
-
-/* Poll the STS_ASS status bit; see when it agrees with CMD_ASE */
-static void fusbh200_poll_ASS(struct fusbh200_hcd *fusbh200)
-{
- unsigned actual, want;
-
- /* Don't enable anything if the controller isn't running (e.g., died) */
- if (fusbh200->rh_state != FUSBH200_RH_RUNNING)
- return;
-
- want = (fusbh200->command & CMD_ASE) ? STS_ASS : 0;
- actual = fusbh200_readl(fusbh200, &fusbh200->regs->status) & STS_ASS;
-
- if (want != actual) {
-
- /* Poll again later, but give up after about 20 ms */
- if (fusbh200->ASS_poll_count++ < 20) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_POLL_ASS, true);
- return;
- }
- fusbh200_dbg(fusbh200, "Waited too long for the async schedule status (%x/%x), giving up\n",
- want, actual);
- }
- fusbh200->ASS_poll_count = 0;
-
- /* The status is up-to-date; restart or stop the schedule as needed */
- if (want == 0) { /* Stopped */
- if (fusbh200->async_count > 0)
- fusbh200_set_command_bit(fusbh200, CMD_ASE);
-
- } else { /* Running */
- if (fusbh200->async_count == 0) {
-
- /* Turn off the schedule after a while */
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_DISABLE_ASYNC,
- true);
- }
- }
-}
-
-/* Turn off the async schedule after a brief delay */
-static void fusbh200_disable_ASE(struct fusbh200_hcd *fusbh200)
-{
- fusbh200_clear_command_bit(fusbh200, CMD_ASE);
-}
-
-
-/* Poll the STS_PSS status bit; see when it agrees with CMD_PSE */
-static void fusbh200_poll_PSS(struct fusbh200_hcd *fusbh200)
-{
- unsigned actual, want;
-
- /* Don't do anything if the controller isn't running (e.g., died) */
- if (fusbh200->rh_state != FUSBH200_RH_RUNNING)
- return;
-
- want = (fusbh200->command & CMD_PSE) ? STS_PSS : 0;
- actual = fusbh200_readl(fusbh200, &fusbh200->regs->status) & STS_PSS;
-
- if (want != actual) {
-
- /* Poll again later, but give up after about 20 ms */
- if (fusbh200->PSS_poll_count++ < 20) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_POLL_PSS, true);
- return;
- }
- fusbh200_dbg(fusbh200, "Waited too long for the periodic schedule status (%x/%x), giving up\n",
- want, actual);
- }
- fusbh200->PSS_poll_count = 0;
-
- /* The status is up-to-date; restart or stop the schedule as needed */
- if (want == 0) { /* Stopped */
- if (fusbh200->periodic_count > 0)
- fusbh200_set_command_bit(fusbh200, CMD_PSE);
-
- } else { /* Running */
- if (fusbh200->periodic_count == 0) {
-
- /* Turn off the schedule after a while */
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_DISABLE_PERIODIC,
- true);
- }
- }
-}
-
-/* Turn off the periodic schedule after a brief delay */
-static void fusbh200_disable_PSE(struct fusbh200_hcd *fusbh200)
-{
- fusbh200_clear_command_bit(fusbh200, CMD_PSE);
-}
-
-
-/* Poll the STS_HALT status bit; see when a dead controller stops */
-static void fusbh200_handle_controller_death(struct fusbh200_hcd *fusbh200)
-{
- if (!(fusbh200_readl(fusbh200, &fusbh200->regs->status) & STS_HALT)) {
-
- /* Give up after a few milliseconds */
- if (fusbh200->died_poll_count++ < 5) {
- /* Try again later */
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_POLL_DEAD, true);
- return;
- }
- fusbh200_warn(fusbh200, "Waited too long for the controller to stop, giving up\n");
- }
-
- /* Clean up the mess */
- fusbh200->rh_state = FUSBH200_RH_HALTED;
- fusbh200_writel(fusbh200, 0, &fusbh200->regs->intr_enable);
- fusbh200_work(fusbh200);
- end_unlink_async(fusbh200);
-
- /* Not in process context, so don't try to reset the controller */
-}
-
-
-/* Handle unlinked interrupt QHs once they are gone from the hardware */
-static void fusbh200_handle_intr_unlinks(struct fusbh200_hcd *fusbh200)
-{
- bool stopped = (fusbh200->rh_state < FUSBH200_RH_RUNNING);
-
- /*
- * Process all the QHs on the intr_unlink list that were added
- * before the current unlink cycle began. The list is in
- * temporal order, so stop when we reach the first entry in the
- * current cycle. But if the root hub isn't running then
- * process all the QHs on the list.
- */
- fusbh200->intr_unlinking = true;
- while (fusbh200->intr_unlink) {
- struct fusbh200_qh *qh = fusbh200->intr_unlink;
-
- if (!stopped && qh->unlink_cycle == fusbh200->intr_unlink_cycle)
- break;
- fusbh200->intr_unlink = qh->unlink_next;
- qh->unlink_next = NULL;
- end_unlink_intr(fusbh200, qh);
- }
-
- /* Handle remaining entries later */
- if (fusbh200->intr_unlink) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_UNLINK_INTR, true);
- ++fusbh200->intr_unlink_cycle;
- }
- fusbh200->intr_unlinking = false;
-}
-
-
-/* Start another free-iTDs/siTDs cycle */
-static void start_free_itds(struct fusbh200_hcd *fusbh200)
-{
- if (!(fusbh200->enabled_hrtimer_events & BIT(FUSBH200_HRTIMER_FREE_ITDS))) {
- fusbh200->last_itd_to_free = list_entry(
- fusbh200->cached_itd_list.prev,
- struct fusbh200_itd, itd_list);
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_FREE_ITDS, true);
- }
-}
-
-/* Wait for controller to stop using old iTDs and siTDs */
-static void end_free_itds(struct fusbh200_hcd *fusbh200)
-{
- struct fusbh200_itd *itd, *n;
-
- if (fusbh200->rh_state < FUSBH200_RH_RUNNING) {
- fusbh200->last_itd_to_free = NULL;
- }
-
- list_for_each_entry_safe(itd, n, &fusbh200->cached_itd_list, itd_list) {
- list_del(&itd->itd_list);
- dma_pool_free(fusbh200->itd_pool, itd, itd->itd_dma);
- if (itd == fusbh200->last_itd_to_free)
- break;
- }
-
- if (!list_empty(&fusbh200->cached_itd_list))
- start_free_itds(fusbh200);
-}
-
-
-/* Handle lost (or very late) IAA interrupts */
-static void fusbh200_iaa_watchdog(struct fusbh200_hcd *fusbh200)
-{
- if (fusbh200->rh_state != FUSBH200_RH_RUNNING)
- return;
-
- /*
- * Lost IAA irqs wedge things badly; seen first with a vt8235.
- * So we need this watchdog, but must protect it against both
- * (a) SMP races against real IAA firing and retriggering, and
- * (b) clean HC shutdown, when IAA watchdog was pending.
- */
- if (fusbh200->async_iaa) {
- u32 cmd, status;
-
- /* If we get here, IAA is *REALLY* late. It's barely
- * conceivable that the system is so busy that CMD_IAAD
- * is still legitimately set, so let's be sure it's
- * clear before we read STS_IAA. (The HC should clear
- * CMD_IAAD when it sets STS_IAA.)
- */
- cmd = fusbh200_readl(fusbh200, &fusbh200->regs->command);
-
- /*
- * If IAA is set here it either legitimately triggered
- * after the watchdog timer expired (_way_ late, so we'll
- * still count it as lost) ... or a silicon erratum:
- * - VIA seems to set IAA without triggering the IRQ;
- * - IAAD potentially cleared without setting IAA.
- */
- status = fusbh200_readl(fusbh200, &fusbh200->regs->status);
- if ((status & STS_IAA) || !(cmd & CMD_IAAD)) {
- COUNT(fusbh200->stats.lost_iaa);
- fusbh200_writel(fusbh200, STS_IAA, &fusbh200->regs->status);
- }
-
- fusbh200_dbg(fusbh200, "IAA watchdog: status %x cmd %x\n",
- status, cmd);
- end_unlink_async(fusbh200);
- }
-}
-
-
-/* Enable the I/O watchdog, if appropriate */
-static void turn_on_io_watchdog(struct fusbh200_hcd *fusbh200)
-{
- /* Not needed if the controller isn't running or it's already enabled */
- if (fusbh200->rh_state != FUSBH200_RH_RUNNING ||
- (fusbh200->enabled_hrtimer_events &
- BIT(FUSBH200_HRTIMER_IO_WATCHDOG)))
- return;
-
- /*
- * Isochronous transfers always need the watchdog.
- * For other sorts we use it only if the flag is set.
- */
- if (fusbh200->isoc_count > 0 || (fusbh200->need_io_watchdog &&
- fusbh200->async_count + fusbh200->intr_count > 0))
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_IO_WATCHDOG, true);
-}
-
-
-/*
- * Handler functions for the hrtimer event types.
- * Keep this array in the same order as the event types indexed by
- * enum fusbh200_hrtimer_event in fusbh200.h.
- */
-static void (*event_handlers[])(struct fusbh200_hcd *) = {
- fusbh200_poll_ASS, /* FUSBH200_HRTIMER_POLL_ASS */
- fusbh200_poll_PSS, /* FUSBH200_HRTIMER_POLL_PSS */
- fusbh200_handle_controller_death, /* FUSBH200_HRTIMER_POLL_DEAD */
- fusbh200_handle_intr_unlinks, /* FUSBH200_HRTIMER_UNLINK_INTR */
- end_free_itds, /* FUSBH200_HRTIMER_FREE_ITDS */
- unlink_empty_async, /* FUSBH200_HRTIMER_ASYNC_UNLINKS */
- fusbh200_iaa_watchdog, /* FUSBH200_HRTIMER_IAA_WATCHDOG */
- fusbh200_disable_PSE, /* FUSBH200_HRTIMER_DISABLE_PERIODIC */
- fusbh200_disable_ASE, /* FUSBH200_HRTIMER_DISABLE_ASYNC */
- fusbh200_work, /* FUSBH200_HRTIMER_IO_WATCHDOG */
-};
-
-static enum hrtimer_restart fusbh200_hrtimer_func(struct hrtimer *t)
-{
- struct fusbh200_hcd *fusbh200 = container_of(t, struct fusbh200_hcd, hrtimer);
- ktime_t now;
- unsigned long events;
- unsigned long flags;
- unsigned e;
-
- spin_lock_irqsave(&fusbh200->lock, flags);
-
- events = fusbh200->enabled_hrtimer_events;
- fusbh200->enabled_hrtimer_events = 0;
- fusbh200->next_hrtimer_event = FUSBH200_HRTIMER_NO_EVENT;
-
- /*
- * Check each pending event. If its time has expired, handle
- * the event; otherwise re-enable it.
- */
- now = ktime_get();
- for_each_set_bit(e, &events, FUSBH200_HRTIMER_NUM_EVENTS) {
- if (now.tv64 >= fusbh200->hr_timeouts[e].tv64)
- event_handlers[e](fusbh200);
- else
- fusbh200_enable_event(fusbh200, e, false);
- }
-
- spin_unlock_irqrestore(&fusbh200->lock, flags);
- return HRTIMER_NORESTART;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#define fusbh200_bus_suspend NULL
-#define fusbh200_bus_resume NULL
-
-/*-------------------------------------------------------------------------*/
-
-static int check_reset_complete (
- struct fusbh200_hcd *fusbh200,
- int index,
- u32 __iomem *status_reg,
- int port_status
-) {
- if (!(port_status & PORT_CONNECT))
- return port_status;
-
- /* if reset finished and it's still not enabled -- handoff */
- if (!(port_status & PORT_PE)) {
- /* with integrated TT, there's nobody to hand it to! */
- fusbh200_dbg (fusbh200,
- "Failed to enable port %d on root hub TT\n",
- index+1);
- return port_status;
- } else {
- fusbh200_dbg(fusbh200, "port %d reset complete, port enabled\n",
- index + 1);
- }
-
- return port_status;
-}
-
-/*-------------------------------------------------------------------------*/
-
-
-/* build "status change" packet (one or two bytes) from HC registers */
-
-static int
-fusbh200_hub_status_data (struct usb_hcd *hcd, char *buf)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- u32 temp, status;
- u32 mask;
- int retval = 1;
- unsigned long flags;
-
- /* init status to no-changes */
- buf [0] = 0;
-
- /* Inform the core about resumes-in-progress by returning
- * a non-zero value even if there are no status changes.
- */
- status = fusbh200->resuming_ports;
-
- mask = PORT_CSC | PORT_PEC;
- // PORT_RESUME from hardware ~= PORT_STAT_C_SUSPEND
-
- /* no hub change reports (bit 0) for now (power, ...) */
-
- /* port N changes (bit N)? */
- spin_lock_irqsave (&fusbh200->lock, flags);
-
- temp = fusbh200_readl(fusbh200, &fusbh200->regs->port_status);
-
- /*
- * Return status information even for ports with OWNER set.
- * Otherwise hub_wq wouldn't see the disconnect event when a
- * high-speed device is switched over to the companion
- * controller by the user.
- */
-
- if ((temp & mask) != 0 || test_bit(0, &fusbh200->port_c_suspend)
- || (fusbh200->reset_done[0] && time_after_eq(
- jiffies, fusbh200->reset_done[0]))) {
- buf [0] |= 1 << 1;
- status = STS_PCD;
- }
- /* FIXME autosuspend idle root hubs */
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- return status ? retval : 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void
-fusbh200_hub_descriptor (
- struct fusbh200_hcd *fusbh200,
- struct usb_hub_descriptor *desc
-) {
- int ports = HCS_N_PORTS (fusbh200->hcs_params);
- u16 temp;
-
- desc->bDescriptorType = USB_DT_HUB;
- desc->bPwrOn2PwrGood = 10; /* fusbh200 1.0, 2.3.9 says 20ms max */
- desc->bHubContrCurrent = 0;
-
- desc->bNbrPorts = ports;
- temp = 1 + (ports / 8);
- desc->bDescLength = 7 + 2 * temp;
-
- /* two bitmaps: ports removable, and usb 1.0 legacy PortPwrCtrlMask */
- memset(&desc->u.hs.DeviceRemovable[0], 0, temp);
- memset(&desc->u.hs.DeviceRemovable[temp], 0xff, temp);
-
- temp = HUB_CHAR_INDV_PORT_OCPM; /* per-port overcurrent reporting */
- temp |= HUB_CHAR_NO_LPSM; /* no power switching */
- desc->wHubCharacteristics = cpu_to_le16(temp);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int fusbh200_hub_control (
- struct usb_hcd *hcd,
- u16 typeReq,
- u16 wValue,
- u16 wIndex,
- char *buf,
- u16 wLength
-) {
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- int ports = HCS_N_PORTS (fusbh200->hcs_params);
- u32 __iomem *status_reg = &fusbh200->regs->port_status;
- u32 temp, temp1, status;
- unsigned long flags;
- int retval = 0;
- unsigned selector;
-
- /*
- * FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR.
- * HCS_INDICATOR may say we can change LEDs to off/amber/green.
- * (track current state ourselves) ... blink for diagnostics,
- * power, "this is the one", etc. EHCI spec supports this.
- */
-
- spin_lock_irqsave (&fusbh200->lock, flags);
- switch (typeReq) {
- case ClearHubFeature:
- switch (wValue) {
- case C_HUB_LOCAL_POWER:
- case C_HUB_OVER_CURRENT:
- /* no hub-wide feature/status flags */
- break;
- default:
- goto error;
- }
- break;
- case ClearPortFeature:
- if (!wIndex || wIndex > ports)
- goto error;
- wIndex--;
- temp = fusbh200_readl(fusbh200, status_reg);
- temp &= ~PORT_RWC_BITS;
-
- /*
- * Even if OWNER is set, so the port is owned by the
- * companion controller, hub_wq needs to be able to clear
- * the port-change status bits (especially
- * USB_PORT_STAT_C_CONNECTION).
- */
-
- switch (wValue) {
- case USB_PORT_FEAT_ENABLE:
- fusbh200_writel(fusbh200, temp & ~PORT_PE, status_reg);
- break;
- case USB_PORT_FEAT_C_ENABLE:
- fusbh200_writel(fusbh200, temp | PORT_PEC, status_reg);
- break;
- case USB_PORT_FEAT_SUSPEND:
- if (temp & PORT_RESET)
- goto error;
- if (!(temp & PORT_SUSPEND))
- break;
- if ((temp & PORT_PE) == 0)
- goto error;
-
- fusbh200_writel(fusbh200, temp | PORT_RESUME, status_reg);
- fusbh200->reset_done[wIndex] = jiffies
- + msecs_to_jiffies(USB_RESUME_TIMEOUT);
- break;
- case USB_PORT_FEAT_C_SUSPEND:
- clear_bit(wIndex, &fusbh200->port_c_suspend);
- break;
- case USB_PORT_FEAT_C_CONNECTION:
- fusbh200_writel(fusbh200, temp | PORT_CSC, status_reg);
- break;
- case USB_PORT_FEAT_C_OVER_CURRENT:
- fusbh200_writel(fusbh200, temp | BMISR_OVC, &fusbh200->regs->bmisr);
- break;
- case USB_PORT_FEAT_C_RESET:
- /* GetPortStatus clears reset */
- break;
- default:
- goto error;
- }
- fusbh200_readl(fusbh200, &fusbh200->regs->command); /* unblock posted write */
- break;
- case GetHubDescriptor:
- fusbh200_hub_descriptor (fusbh200, (struct usb_hub_descriptor *)
- buf);
- break;
- case GetHubStatus:
- /* no hub-wide feature/status flags */
- memset (buf, 0, 4);
- //cpu_to_le32s ((u32 *) buf);
- break;
- case GetPortStatus:
- if (!wIndex || wIndex > ports)
- goto error;
- wIndex--;
- status = 0;
- temp = fusbh200_readl(fusbh200, status_reg);
-
- // wPortChange bits
- if (temp & PORT_CSC)
- status |= USB_PORT_STAT_C_CONNECTION << 16;
- if (temp & PORT_PEC)
- status |= USB_PORT_STAT_C_ENABLE << 16;
-
- temp1 = fusbh200_readl(fusbh200, &fusbh200->regs->bmisr);
- if (temp1 & BMISR_OVC)
- status |= USB_PORT_STAT_C_OVERCURRENT << 16;
-
- /* whoever resumes must GetPortStatus to complete it!! */
- if (temp & PORT_RESUME) {
-
- /* Remote Wakeup received? */
- if (!fusbh200->reset_done[wIndex]) {
- /* resume signaling for 20 msec */
- fusbh200->reset_done[wIndex] = jiffies
- + msecs_to_jiffies(20);
- /* check the port again */
- mod_timer(&fusbh200_to_hcd(fusbh200)->rh_timer,
- fusbh200->reset_done[wIndex]);
- }
-
- /* resume completed? */
- else if (time_after_eq(jiffies,
- fusbh200->reset_done[wIndex])) {
- clear_bit(wIndex, &fusbh200->suspended_ports);
- set_bit(wIndex, &fusbh200->port_c_suspend);
- fusbh200->reset_done[wIndex] = 0;
-
- /* stop resume signaling */
- temp = fusbh200_readl(fusbh200, status_reg);
- fusbh200_writel(fusbh200,
- temp & ~(PORT_RWC_BITS | PORT_RESUME),
- status_reg);
- clear_bit(wIndex, &fusbh200->resuming_ports);
- retval = handshake(fusbh200, status_reg,
- PORT_RESUME, 0, 2000 /* 2msec */);
- if (retval != 0) {
- fusbh200_err(fusbh200,
- "port %d resume error %d\n",
- wIndex + 1, retval);
- goto error;
- }
- temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10));
- }
- }
-
- /* whoever resets must GetPortStatus to complete it!! */
- if ((temp & PORT_RESET)
- && time_after_eq(jiffies,
- fusbh200->reset_done[wIndex])) {
- status |= USB_PORT_STAT_C_RESET << 16;
- fusbh200->reset_done [wIndex] = 0;
- clear_bit(wIndex, &fusbh200->resuming_ports);
-
- /* force reset to complete */
- fusbh200_writel(fusbh200, temp & ~(PORT_RWC_BITS | PORT_RESET),
- status_reg);
- /* REVISIT: some hardware needs 550+ usec to clear
- * this bit; seems too long to spin routinely...
- */
- retval = handshake(fusbh200, status_reg,
- PORT_RESET, 0, 1000);
- if (retval != 0) {
- fusbh200_err (fusbh200, "port %d reset error %d\n",
- wIndex + 1, retval);
- goto error;
- }
-
- /* see what we found out */
- temp = check_reset_complete (fusbh200, wIndex, status_reg,
- fusbh200_readl(fusbh200, status_reg));
- }
-
- if (!(temp & (PORT_RESUME|PORT_RESET))) {
- fusbh200->reset_done[wIndex] = 0;
- clear_bit(wIndex, &fusbh200->resuming_ports);
- }
-
- /* transfer dedicated ports to the companion hc */
- if ((temp & PORT_CONNECT) &&
- test_bit(wIndex, &fusbh200->companion_ports)) {
- temp &= ~PORT_RWC_BITS;
- fusbh200_writel(fusbh200, temp, status_reg);
- fusbh200_dbg(fusbh200, "port %d --> companion\n", wIndex + 1);
- temp = fusbh200_readl(fusbh200, status_reg);
- }
-
- /*
- * Even if OWNER is set, there's no harm letting hub_wq
- * see the wPortStatus values (they should all be 0 except
- * for PORT_POWER anyway).
- */
-
- if (temp & PORT_CONNECT) {
- status |= USB_PORT_STAT_CONNECTION;
- status |= fusbh200_port_speed(fusbh200, temp);
- }
- if (temp & PORT_PE)
- status |= USB_PORT_STAT_ENABLE;
-
- /* maybe the port was unsuspended without our knowledge */
- if (temp & (PORT_SUSPEND|PORT_RESUME)) {
- status |= USB_PORT_STAT_SUSPEND;
- } else if (test_bit(wIndex, &fusbh200->suspended_ports)) {
- clear_bit(wIndex, &fusbh200->suspended_ports);
- clear_bit(wIndex, &fusbh200->resuming_ports);
- fusbh200->reset_done[wIndex] = 0;
- if (temp & PORT_PE)
- set_bit(wIndex, &fusbh200->port_c_suspend);
- }
-
- temp1 = fusbh200_readl(fusbh200, &fusbh200->regs->bmisr);
- if (temp1 & BMISR_OVC)
- status |= USB_PORT_STAT_OVERCURRENT;
- if (temp & PORT_RESET)
- status |= USB_PORT_STAT_RESET;
- if (test_bit(wIndex, &fusbh200->port_c_suspend))
- status |= USB_PORT_STAT_C_SUSPEND << 16;
-
- if (status & ~0xffff) /* only if wPortChange is interesting */
- dbg_port(fusbh200, "GetStatus", wIndex + 1, temp);
- put_unaligned_le32(status, buf);
- break;
- case SetHubFeature:
- switch (wValue) {
- case C_HUB_LOCAL_POWER:
- case C_HUB_OVER_CURRENT:
- /* no hub-wide feature/status flags */
- break;
- default:
- goto error;
- }
- break;
- case SetPortFeature:
- selector = wIndex >> 8;
- wIndex &= 0xff;
-
- if (!wIndex || wIndex > ports)
- goto error;
- wIndex--;
- temp = fusbh200_readl(fusbh200, status_reg);
- temp &= ~PORT_RWC_BITS;
- switch (wValue) {
- case USB_PORT_FEAT_SUSPEND:
- if ((temp & PORT_PE) == 0
- || (temp & PORT_RESET) != 0)
- goto error;
-
- /* After above check the port must be connected.
- * Set appropriate bit thus could put phy into low power
- * mode if we have hostpc feature
- */
- fusbh200_writel(fusbh200, temp | PORT_SUSPEND, status_reg);
- set_bit(wIndex, &fusbh200->suspended_ports);
- break;
- case USB_PORT_FEAT_RESET:
- if (temp & PORT_RESUME)
- goto error;
- /* line status bits may report this as low speed,
- * which can be fine if this root hub has a
- * transaction translator built in.
- */
- fusbh200_dbg(fusbh200, "port %d reset\n", wIndex + 1);
- temp |= PORT_RESET;
- temp &= ~PORT_PE;
-
- /*
- * caller must wait, then call GetPortStatus
- * usb 2.0 spec says 50 ms resets on root
- */
- fusbh200->reset_done [wIndex] = jiffies
- + msecs_to_jiffies (50);
- fusbh200_writel(fusbh200, temp, status_reg);
- break;
-
- /* For downstream facing ports (these): one hub port is put
- * into test mode according to USB2 11.24.2.13, then the hub
- * must be reset (which for root hub now means rmmod+modprobe,
- * or else system reboot). See EHCI 2.3.9 and 4.14 for info
- * about the EHCI-specific stuff.
- */
- case USB_PORT_FEAT_TEST:
- if (!selector || selector > 5)
- goto error;
- spin_unlock_irqrestore(&fusbh200->lock, flags);
- fusbh200_quiesce(fusbh200);
- spin_lock_irqsave(&fusbh200->lock, flags);
-
- /* Put all enabled ports into suspend */
- temp = fusbh200_readl(fusbh200, status_reg) & ~PORT_RWC_BITS;
- if (temp & PORT_PE)
- fusbh200_writel(fusbh200, temp | PORT_SUSPEND,
- status_reg);
-
- spin_unlock_irqrestore(&fusbh200->lock, flags);
- fusbh200_halt(fusbh200);
- spin_lock_irqsave(&fusbh200->lock, flags);
-
- temp = fusbh200_readl(fusbh200, status_reg);
- temp |= selector << 16;
- fusbh200_writel(fusbh200, temp, status_reg);
- break;
-
- default:
- goto error;
- }
- fusbh200_readl(fusbh200, &fusbh200->regs->command); /* unblock posted writes */
- break;
-
- default:
-error:
- /* "stall" on error */
- retval = -EPIPE;
- }
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- return retval;
-}
-
-static void __maybe_unused fusbh200_relinquish_port(struct usb_hcd *hcd,
- int portnum)
-{
- return;
-}
-
-static int __maybe_unused fusbh200_port_handed_over(struct usb_hcd *hcd,
- int portnum)
-{
- return 0;
-}
-/*-------------------------------------------------------------------------*/
-/*
- * There's basically three types of memory:
- * - data used only by the HCD ... kmalloc is fine
- * - async and periodic schedules, shared by HC and HCD ... these
- * need to use dma_pool or dma_alloc_coherent
- * - driver buffers, read/written by HC ... single shot DMA mapped
- *
- * There's also "register" data (e.g. PCI or SOC), which is memory mapped.
- * No memory seen by this driver is pageable.
- */
-
-/*-------------------------------------------------------------------------*/
-
-/* Allocate the key transfer structures from the previously allocated pool */
-
-static inline void fusbh200_qtd_init(struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd,
- dma_addr_t dma)
-{
- memset (qtd, 0, sizeof *qtd);
- qtd->qtd_dma = dma;
- qtd->hw_token = cpu_to_hc32(fusbh200, QTD_STS_HALT);
- qtd->hw_next = FUSBH200_LIST_END(fusbh200);
- qtd->hw_alt_next = FUSBH200_LIST_END(fusbh200);
- INIT_LIST_HEAD (&qtd->qtd_list);
-}
-
-static struct fusbh200_qtd *fusbh200_qtd_alloc (struct fusbh200_hcd *fusbh200, gfp_t flags)
-{
- struct fusbh200_qtd *qtd;
- dma_addr_t dma;
-
- qtd = dma_pool_alloc (fusbh200->qtd_pool, flags, &dma);
- if (qtd != NULL) {
- fusbh200_qtd_init(fusbh200, qtd, dma);
- }
- return qtd;
-}
-
-static inline void fusbh200_qtd_free (struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd)
-{
- dma_pool_free (fusbh200->qtd_pool, qtd, qtd->qtd_dma);
-}
-
-
-static void qh_destroy(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- /* clean qtds first, and know this is not linked */
- if (!list_empty (&qh->qtd_list) || qh->qh_next.ptr) {
- fusbh200_dbg (fusbh200, "unused qh not empty!\n");
- BUG ();
- }
- if (qh->dummy)
- fusbh200_qtd_free (fusbh200, qh->dummy);
- dma_pool_free(fusbh200->qh_pool, qh->hw, qh->qh_dma);
- kfree(qh);
-}
-
-static struct fusbh200_qh *fusbh200_qh_alloc (struct fusbh200_hcd *fusbh200, gfp_t flags)
-{
- struct fusbh200_qh *qh;
- dma_addr_t dma;
-
- qh = kzalloc(sizeof *qh, GFP_ATOMIC);
- if (!qh)
- goto done;
- qh->hw = (struct fusbh200_qh_hw *)
- dma_pool_alloc(fusbh200->qh_pool, flags, &dma);
- if (!qh->hw)
- goto fail;
- memset(qh->hw, 0, sizeof *qh->hw);
- qh->qh_dma = dma;
- // INIT_LIST_HEAD (&qh->qh_list);
- INIT_LIST_HEAD (&qh->qtd_list);
-
- /* dummy td enables safe urb queuing */
- qh->dummy = fusbh200_qtd_alloc (fusbh200, flags);
- if (qh->dummy == NULL) {
- fusbh200_dbg (fusbh200, "no dummy td\n");
- goto fail1;
- }
-done:
- return qh;
-fail1:
- dma_pool_free(fusbh200->qh_pool, qh->hw, qh->qh_dma);
-fail:
- kfree(qh);
- return NULL;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* The queue heads and transfer descriptors are managed from pools tied
- * to each of the "per device" structures.
- * This is the initialisation and cleanup code.
- */
-
-static void fusbh200_mem_cleanup (struct fusbh200_hcd *fusbh200)
-{
- if (fusbh200->async)
- qh_destroy(fusbh200, fusbh200->async);
- fusbh200->async = NULL;
-
- if (fusbh200->dummy)
- qh_destroy(fusbh200, fusbh200->dummy);
- fusbh200->dummy = NULL;
-
- /* DMA consistent memory and pools */
- if (fusbh200->qtd_pool)
- dma_pool_destroy (fusbh200->qtd_pool);
- fusbh200->qtd_pool = NULL;
-
- if (fusbh200->qh_pool) {
- dma_pool_destroy (fusbh200->qh_pool);
- fusbh200->qh_pool = NULL;
- }
-
- if (fusbh200->itd_pool)
- dma_pool_destroy (fusbh200->itd_pool);
- fusbh200->itd_pool = NULL;
-
- if (fusbh200->periodic)
- dma_free_coherent (fusbh200_to_hcd(fusbh200)->self.controller,
- fusbh200->periodic_size * sizeof (u32),
- fusbh200->periodic, fusbh200->periodic_dma);
- fusbh200->periodic = NULL;
-
- /* shadow periodic table */
- kfree(fusbh200->pshadow);
- fusbh200->pshadow = NULL;
-}
-
-/* remember to add cleanup code (above) if you add anything here */
-static int fusbh200_mem_init (struct fusbh200_hcd *fusbh200, gfp_t flags)
-{
- int i;
-
- /* QTDs for control/bulk/intr transfers */
- fusbh200->qtd_pool = dma_pool_create ("fusbh200_qtd",
- fusbh200_to_hcd(fusbh200)->self.controller,
- sizeof (struct fusbh200_qtd),
- 32 /* byte alignment (for hw parts) */,
- 4096 /* can't cross 4K */);
- if (!fusbh200->qtd_pool) {
- goto fail;
- }
-
- /* QHs for control/bulk/intr transfers */
- fusbh200->qh_pool = dma_pool_create ("fusbh200_qh",
- fusbh200_to_hcd(fusbh200)->self.controller,
- sizeof(struct fusbh200_qh_hw),
- 32 /* byte alignment (for hw parts) */,
- 4096 /* can't cross 4K */);
- if (!fusbh200->qh_pool) {
- goto fail;
- }
- fusbh200->async = fusbh200_qh_alloc (fusbh200, flags);
- if (!fusbh200->async) {
- goto fail;
- }
-
- /* ITD for high speed ISO transfers */
- fusbh200->itd_pool = dma_pool_create ("fusbh200_itd",
- fusbh200_to_hcd(fusbh200)->self.controller,
- sizeof (struct fusbh200_itd),
- 64 /* byte alignment (for hw parts) */,
- 4096 /* can't cross 4K */);
- if (!fusbh200->itd_pool) {
- goto fail;
- }
-
- /* Hardware periodic table */
- fusbh200->periodic = (__le32 *)
- dma_alloc_coherent (fusbh200_to_hcd(fusbh200)->self.controller,
- fusbh200->periodic_size * sizeof(__le32),
- &fusbh200->periodic_dma, 0);
- if (fusbh200->periodic == NULL) {
- goto fail;
- }
-
- for (i = 0; i < fusbh200->periodic_size; i++)
- fusbh200->periodic[i] = FUSBH200_LIST_END(fusbh200);
-
- /* software shadow of hardware table */
- fusbh200->pshadow = kcalloc(fusbh200->periodic_size, sizeof(void *), flags);
- if (fusbh200->pshadow != NULL)
- return 0;
-
-fail:
- fusbh200_dbg (fusbh200, "couldn't init memory\n");
- fusbh200_mem_cleanup (fusbh200);
- return -ENOMEM;
-}
-/*-------------------------------------------------------------------------*/
-/*
- * EHCI hardware queue manipulation ... the core. QH/QTD manipulation.
- *
- * Control, bulk, and interrupt traffic all use "qh" lists. They list "qtd"
- * entries describing USB transactions, max 16-20kB/entry (with 4kB-aligned
- * buffers needed for the larger number). We use one QH per endpoint, queue
- * multiple urbs (all three types) per endpoint. URBs may need several qtds.
- *
- * ISO traffic uses "ISO TD" (itd) records, and (along with
- * interrupts) needs careful scheduling. Performance improvements can be
- * an ongoing challenge. That's in "ehci-sched.c".
- *
- * USB 1.1 devices are handled (a) by "companion" OHCI or UHCI root hubs,
- * or otherwise through transaction translators (TTs) in USB 2.0 hubs using
- * (b) special fields in qh entries or (c) split iso entries. TTs will
- * buffer low/full speed data so the host collects it at high speed.
- */
-
-/*-------------------------------------------------------------------------*/
-
-/* fill a qtd, returning how much of the buffer we were able to queue up */
-
-static int
-qtd_fill(struct fusbh200_hcd *fusbh200, struct fusbh200_qtd *qtd, dma_addr_t buf,
- size_t len, int token, int maxpacket)
-{
- int i, count;
- u64 addr = buf;
-
- /* one buffer entry per 4K ... first might be short or unaligned */
- qtd->hw_buf[0] = cpu_to_hc32(fusbh200, (u32)addr);
- qtd->hw_buf_hi[0] = cpu_to_hc32(fusbh200, (u32)(addr >> 32));
- count = 0x1000 - (buf & 0x0fff); /* rest of that page */
- if (likely (len < count)) /* ... iff needed */
- count = len;
- else {
- buf += 0x1000;
- buf &= ~0x0fff;
-
- /* per-qtd limit: from 16K to 20K (best alignment) */
- for (i = 1; count < len && i < 5; i++) {
- addr = buf;
- qtd->hw_buf[i] = cpu_to_hc32(fusbh200, (u32)addr);
- qtd->hw_buf_hi[i] = cpu_to_hc32(fusbh200,
- (u32)(addr >> 32));
- buf += 0x1000;
- if ((count + 0x1000) < len)
- count += 0x1000;
- else
- count = len;
- }
-
- /* short packets may only terminate transfers */
- if (count != len)
- count -= (count % maxpacket);
- }
- qtd->hw_token = cpu_to_hc32(fusbh200, (count << 16) | token);
- qtd->length = count;
-
- return count;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static inline void
-qh_update (struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh, struct fusbh200_qtd *qtd)
-{
- struct fusbh200_qh_hw *hw = qh->hw;
-
- /* writes to an active overlay are unsafe */
- BUG_ON(qh->qh_state != QH_STATE_IDLE);
-
- hw->hw_qtd_next = QTD_NEXT(fusbh200, qtd->qtd_dma);
- hw->hw_alt_next = FUSBH200_LIST_END(fusbh200);
-
- /* Except for control endpoints, we make hardware maintain data
- * toggle (like OHCI) ... here (re)initialize the toggle in the QH,
- * and set the pseudo-toggle in udev. Only usb_clear_halt() will
- * ever clear it.
- */
- if (!(hw->hw_info1 & cpu_to_hc32(fusbh200, QH_TOGGLE_CTL))) {
- unsigned is_out, epnum;
-
- is_out = qh->is_out;
- epnum = (hc32_to_cpup(fusbh200, &hw->hw_info1) >> 8) & 0x0f;
- if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) {
- hw->hw_token &= ~cpu_to_hc32(fusbh200, QTD_TOGGLE);
- usb_settoggle (qh->dev, epnum, is_out, 1);
- }
- }
-
- hw->hw_token &= cpu_to_hc32(fusbh200, QTD_TOGGLE | QTD_STS_PING);
-}
-
-/* if it weren't for a common silicon quirk (writing the dummy into the qh
- * overlay, so qh->hw_token wrongly becomes inactive/halted), only fault
- * recovery (including urb dequeue) would need software changes to a QH...
- */
-static void
-qh_refresh (struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- struct fusbh200_qtd *qtd;
-
- if (list_empty (&qh->qtd_list))
- qtd = qh->dummy;
- else {
- qtd = list_entry (qh->qtd_list.next,
- struct fusbh200_qtd, qtd_list);
- /*
- * first qtd may already be partially processed.
- * If we come here during unlink, the QH overlay region
- * might have reference to the just unlinked qtd. The
- * qtd is updated in qh_completions(). Update the QH
- * overlay here.
- */
- if (cpu_to_hc32(fusbh200, qtd->qtd_dma) == qh->hw->hw_current) {
- qh->hw->hw_qtd_next = qtd->hw_next;
- qtd = NULL;
- }
- }
-
- if (qtd)
- qh_update (fusbh200, qh, qtd);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void qh_link_async(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh);
-
-static void fusbh200_clear_tt_buffer_complete(struct usb_hcd *hcd,
- struct usb_host_endpoint *ep)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200(hcd);
- struct fusbh200_qh *qh = ep->hcpriv;
- unsigned long flags;
-
- spin_lock_irqsave(&fusbh200->lock, flags);
- qh->clearing_tt = 0;
- if (qh->qh_state == QH_STATE_IDLE && !list_empty(&qh->qtd_list)
- && fusbh200->rh_state == FUSBH200_RH_RUNNING)
- qh_link_async(fusbh200, qh);
- spin_unlock_irqrestore(&fusbh200->lock, flags);
-}
-
-static void fusbh200_clear_tt_buffer(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh,
- struct urb *urb, u32 token)
-{
-
- /* If an async split transaction gets an error or is unlinked,
- * the TT buffer may be left in an indeterminate state. We
- * have to clear the TT buffer.
- *
- * Note: this routine is never called for Isochronous transfers.
- */
- if (urb->dev->tt && !usb_pipeint(urb->pipe) && !qh->clearing_tt) {
- struct usb_device *tt = urb->dev->tt->hub;
-
- dev_dbg(&tt->dev,
- "clear tt buffer port %d, a%d ep%d t%08x\n",
- urb->dev->ttport, urb->dev->devnum,
- usb_pipeendpoint(urb->pipe), token);
-
- if (urb->dev->tt->hub !=
- fusbh200_to_hcd(fusbh200)->self.root_hub) {
- if (usb_hub_clear_tt_buffer(urb) == 0)
- qh->clearing_tt = 1;
- }
- }
-}
-
-static int qtd_copy_status (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- size_t length,
- u32 token
-)
-{
- int status = -EINPROGRESS;
-
- /* count IN/OUT bytes, not SETUP (even short packets) */
- if (likely (QTD_PID (token) != 2))
- urb->actual_length += length - QTD_LENGTH (token);
-
- /* don't modify error codes */
- if (unlikely(urb->unlinked))
- return status;
-
- /* force cleanup after short read; not always an error */
- if (unlikely (IS_SHORT_READ (token)))
- status = -EREMOTEIO;
-
- /* serious "can't proceed" faults reported by the hardware */
- if (token & QTD_STS_HALT) {
- if (token & QTD_STS_BABBLE) {
- /* FIXME "must" disable babbling device's port too */
- status = -EOVERFLOW;
- /* CERR nonzero + halt --> stall */
- } else if (QTD_CERR(token)) {
- status = -EPIPE;
-
- /* In theory, more than one of the following bits can be set
- * since they are sticky and the transaction is retried.
- * Which to test first is rather arbitrary.
- */
- } else if (token & QTD_STS_MMF) {
- /* fs/ls interrupt xfer missed the complete-split */
- status = -EPROTO;
- } else if (token & QTD_STS_DBE) {
- status = (QTD_PID (token) == 1) /* IN ? */
- ? -ENOSR /* hc couldn't read data */
- : -ECOMM; /* hc couldn't write data */
- } else if (token & QTD_STS_XACT) {
- /* timeout, bad CRC, wrong PID, etc */
- fusbh200_dbg(fusbh200, "devpath %s ep%d%s 3strikes\n",
- urb->dev->devpath,
- usb_pipeendpoint(urb->pipe),
- usb_pipein(urb->pipe) ? "in" : "out");
- status = -EPROTO;
- } else { /* unknown */
- status = -EPROTO;
- }
-
- fusbh200_dbg(fusbh200,
- "dev%d ep%d%s qtd token %08x --> status %d\n",
- usb_pipedevice (urb->pipe),
- usb_pipeendpoint (urb->pipe),
- usb_pipein (urb->pipe) ? "in" : "out",
- token, status);
- }
-
- return status;
-}
-
-static void
-fusbh200_urb_done(struct fusbh200_hcd *fusbh200, struct urb *urb, int status)
-__releases(fusbh200->lock)
-__acquires(fusbh200->lock)
-{
- if (likely (urb->hcpriv != NULL)) {
- struct fusbh200_qh *qh = (struct fusbh200_qh *) urb->hcpriv;
-
- /* S-mask in a QH means it's an interrupt urb */
- if ((qh->hw->hw_info2 & cpu_to_hc32(fusbh200, QH_SMASK)) != 0) {
-
- /* ... update hc-wide periodic stats (for usbfs) */
- fusbh200_to_hcd(fusbh200)->self.bandwidth_int_reqs--;
- }
- }
-
- if (unlikely(urb->unlinked)) {
- COUNT(fusbh200->stats.unlink);
- } else {
- /* report non-error and short read status as zero */
- if (status == -EINPROGRESS || status == -EREMOTEIO)
- status = 0;
- COUNT(fusbh200->stats.complete);
- }
-
-#ifdef FUSBH200_URB_TRACE
- fusbh200_dbg (fusbh200,
- "%s %s urb %p ep%d%s status %d len %d/%d\n",
- __func__, urb->dev->devpath, urb,
- usb_pipeendpoint (urb->pipe),
- usb_pipein (urb->pipe) ? "in" : "out",
- status,
- urb->actual_length, urb->transfer_buffer_length);
-#endif
-
- /* complete() can reenter this HCD */
- usb_hcd_unlink_urb_from_ep(fusbh200_to_hcd(fusbh200), urb);
- spin_unlock (&fusbh200->lock);
- usb_hcd_giveback_urb(fusbh200_to_hcd(fusbh200), urb, status);
- spin_lock (&fusbh200->lock);
-}
-
-static int qh_schedule (struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh);
-
-/*
- * Process and free completed qtds for a qh, returning URBs to drivers.
- * Chases up to qh->hw_current. Returns number of completions called,
- * indicating how much "real" work we did.
- */
-static unsigned
-qh_completions (struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- struct fusbh200_qtd *last, *end = qh->dummy;
- struct list_head *entry, *tmp;
- int last_status;
- int stopped;
- unsigned count = 0;
- u8 state;
- struct fusbh200_qh_hw *hw = qh->hw;
-
- if (unlikely (list_empty (&qh->qtd_list)))
- return count;
-
- /* completions (or tasks on other cpus) must never clobber HALT
- * till we've gone through and cleaned everything up, even when
- * they add urbs to this qh's queue or mark them for unlinking.
- *
- * NOTE: unlinking expects to be done in queue order.
- *
- * It's a bug for qh->qh_state to be anything other than
- * QH_STATE_IDLE, unless our caller is scan_async() or
- * scan_intr().
- */
- state = qh->qh_state;
- qh->qh_state = QH_STATE_COMPLETING;
- stopped = (state == QH_STATE_IDLE);
-
- rescan:
- last = NULL;
- last_status = -EINPROGRESS;
- qh->needs_rescan = 0;
-
- /* remove de-activated QTDs from front of queue.
- * after faults (including short reads), cleanup this urb
- * then let the queue advance.
- * if queue is stopped, handles unlinks.
- */
- list_for_each_safe (entry, tmp, &qh->qtd_list) {
- struct fusbh200_qtd *qtd;
- struct urb *urb;
- u32 token = 0;
-
- qtd = list_entry (entry, struct fusbh200_qtd, qtd_list);
- urb = qtd->urb;
-
- /* clean up any state from previous QTD ...*/
- if (last) {
- if (likely (last->urb != urb)) {
- fusbh200_urb_done(fusbh200, last->urb, last_status);
- count++;
- last_status = -EINPROGRESS;
- }
- fusbh200_qtd_free (fusbh200, last);
- last = NULL;
- }
-
- /* ignore urbs submitted during completions we reported */
- if (qtd == end)
- break;
-
- /* hardware copies qtd out of qh overlay */
- rmb ();
- token = hc32_to_cpu(fusbh200, qtd->hw_token);
-
- /* always clean up qtds the hc de-activated */
- retry_xacterr:
- if ((token & QTD_STS_ACTIVE) == 0) {
-
- /* Report Data Buffer Error: non-fatal but useful */
- if (token & QTD_STS_DBE)
- fusbh200_dbg(fusbh200,
- "detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n",
- urb,
- usb_endpoint_num(&urb->ep->desc),
- usb_endpoint_dir_in(&urb->ep->desc) ? "in" : "out",
- urb->transfer_buffer_length,
- qtd,
- qh);
-
- /* on STALL, error, and short reads this urb must
- * complete and all its qtds must be recycled.
- */
- if ((token & QTD_STS_HALT) != 0) {
-
- /* retry transaction errors until we
- * reach the software xacterr limit
- */
- if ((token & QTD_STS_XACT) &&
- QTD_CERR(token) == 0 &&
- ++qh->xacterrs < QH_XACTERR_MAX &&
- !urb->unlinked) {
- fusbh200_dbg(fusbh200,
- "detected XactErr len %zu/%zu retry %d\n",
- qtd->length - QTD_LENGTH(token), qtd->length, qh->xacterrs);
-
- /* reset the token in the qtd and the
- * qh overlay (which still contains
- * the qtd) so that we pick up from
- * where we left off
- */
- token &= ~QTD_STS_HALT;
- token |= QTD_STS_ACTIVE |
- (FUSBH200_TUNE_CERR << 10);
- qtd->hw_token = cpu_to_hc32(fusbh200,
- token);
- wmb();
- hw->hw_token = cpu_to_hc32(fusbh200,
- token);
- goto retry_xacterr;
- }
- stopped = 1;
-
- /* magic dummy for some short reads; qh won't advance.
- * that silicon quirk can kick in with this dummy too.
- *
- * other short reads won't stop the queue, including
- * control transfers (status stage handles that) or
- * most other single-qtd reads ... the queue stops if
- * URB_SHORT_NOT_OK was set so the driver submitting
- * the urbs could clean it up.
- */
- } else if (IS_SHORT_READ (token)
- && !(qtd->hw_alt_next
- & FUSBH200_LIST_END(fusbh200))) {
- stopped = 1;
- }
-
- /* stop scanning when we reach qtds the hc is using */
- } else if (likely (!stopped
- && fusbh200->rh_state >= FUSBH200_RH_RUNNING)) {
- break;
-
- /* scan the whole queue for unlinks whenever it stops */
- } else {
- stopped = 1;
-
- /* cancel everything if we halt, suspend, etc */
- if (fusbh200->rh_state < FUSBH200_RH_RUNNING)
- last_status = -ESHUTDOWN;
-
- /* this qtd is active; skip it unless a previous qtd
- * for its urb faulted, or its urb was canceled.
- */
- else if (last_status == -EINPROGRESS && !urb->unlinked)
- continue;
-
- /* qh unlinked; token in overlay may be most current */
- if (state == QH_STATE_IDLE
- && cpu_to_hc32(fusbh200, qtd->qtd_dma)
- == hw->hw_current) {
- token = hc32_to_cpu(fusbh200, hw->hw_token);
-
- /* An unlink may leave an incomplete
- * async transaction in the TT buffer.
- * We have to clear it.
- */
- fusbh200_clear_tt_buffer(fusbh200, qh, urb, token);
- }
- }
-
- /* unless we already know the urb's status, collect qtd status
- * and update count of bytes transferred. in common short read
- * cases with only one data qtd (including control transfers),
- * queue processing won't halt. but with two or more qtds (for
- * example, with a 32 KB transfer), when the first qtd gets a
- * short read the second must be removed by hand.
- */
- if (last_status == -EINPROGRESS) {
- last_status = qtd_copy_status(fusbh200, urb,
- qtd->length, token);
- if (last_status == -EREMOTEIO
- && (qtd->hw_alt_next
- & FUSBH200_LIST_END(fusbh200)))
- last_status = -EINPROGRESS;
-
- /* As part of low/full-speed endpoint-halt processing
- * we must clear the TT buffer (11.17.5).
- */
- if (unlikely(last_status != -EINPROGRESS &&
- last_status != -EREMOTEIO)) {
- /* The TT's in some hubs malfunction when they
- * receive this request following a STALL (they
- * stop sending isochronous packets). Since a
- * STALL can't leave the TT buffer in a busy
- * state (if you believe Figures 11-48 - 11-51
- * in the USB 2.0 spec), we won't clear the TT
- * buffer in this case. Strictly speaking this
- * is a violation of the spec.
- */
- if (last_status != -EPIPE)
- fusbh200_clear_tt_buffer(fusbh200, qh, urb,
- token);
- }
- }
-
- /* if we're removing something not at the queue head,
- * patch the hardware queue pointer.
- */
- if (stopped && qtd->qtd_list.prev != &qh->qtd_list) {
- last = list_entry (qtd->qtd_list.prev,
- struct fusbh200_qtd, qtd_list);
- last->hw_next = qtd->hw_next;
- }
-
- /* remove qtd; it's recycled after possible urb completion */
- list_del (&qtd->qtd_list);
- last = qtd;
-
- /* reinit the xacterr counter for the next qtd */
- qh->xacterrs = 0;
- }
-
- /* last urb's completion might still need calling */
- if (likely (last != NULL)) {
- fusbh200_urb_done(fusbh200, last->urb, last_status);
- count++;
- fusbh200_qtd_free (fusbh200, last);
- }
-
- /* Do we need to rescan for URBs dequeued during a giveback? */
- if (unlikely(qh->needs_rescan)) {
- /* If the QH is already unlinked, do the rescan now. */
- if (state == QH_STATE_IDLE)
- goto rescan;
-
- /* Otherwise we have to wait until the QH is fully unlinked.
- * Our caller will start an unlink if qh->needs_rescan is
- * set. But if an unlink has already started, nothing needs
- * to be done.
- */
- if (state != QH_STATE_LINKED)
- qh->needs_rescan = 0;
- }
-
- /* restore original state; caller must unlink or relink */
- qh->qh_state = state;
-
- /* be sure the hardware's done with the qh before refreshing
- * it after fault cleanup, or recovering from silicon wrongly
- * overlaying the dummy qtd (which reduces DMA chatter).
- */
- if (stopped != 0 || hw->hw_qtd_next == FUSBH200_LIST_END(fusbh200)) {
- switch (state) {
- case QH_STATE_IDLE:
- qh_refresh(fusbh200, qh);
- break;
- case QH_STATE_LINKED:
- /* We won't refresh a QH that's linked (after the HC
- * stopped the queue). That avoids a race:
- * - HC reads first part of QH;
- * - CPU updates that first part and the token;
- * - HC reads rest of that QH, including token
- * Result: HC gets an inconsistent image, and then
- * DMAs to/from the wrong memory (corrupting it).
- *
- * That should be rare for interrupt transfers,
- * except maybe high bandwidth ...
- */
-
- /* Tell the caller to start an unlink */
- qh->needs_rescan = 1;
- break;
- /* otherwise, unlink already started */
- }
- }
-
- return count;
-}
-
-/*-------------------------------------------------------------------------*/
-
-// high bandwidth multiplier, as encoded in highspeed endpoint descriptors
-#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
-// ... and packet size, for any kind of endpoint descriptor
-#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
-
-/*
- * reverse of qh_urb_transaction: free a list of TDs.
- * used for cleanup after errors, before HC sees an URB's TDs.
- */
-static void qtd_list_free (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct list_head *qtd_list
-) {
- struct list_head *entry, *temp;
-
- list_for_each_safe (entry, temp, qtd_list) {
- struct fusbh200_qtd *qtd;
-
- qtd = list_entry (entry, struct fusbh200_qtd, qtd_list);
- list_del (&qtd->qtd_list);
- fusbh200_qtd_free (fusbh200, qtd);
- }
-}
-
-/*
- * create a list of filled qtds for this URB; won't link into qh.
- */
-static struct list_head *
-qh_urb_transaction (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct list_head *head,
- gfp_t flags
-) {
- struct fusbh200_qtd *qtd, *qtd_prev;
- dma_addr_t buf;
- int len, this_sg_len, maxpacket;
- int is_input;
- u32 token;
- int i;
- struct scatterlist *sg;
-
- /*
- * URBs map to sequences of QTDs: one logical transaction
- */
- qtd = fusbh200_qtd_alloc (fusbh200, flags);
- if (unlikely (!qtd))
- return NULL;
- list_add_tail (&qtd->qtd_list, head);
- qtd->urb = urb;
-
- token = QTD_STS_ACTIVE;
- token |= (FUSBH200_TUNE_CERR << 10);
- /* for split transactions, SplitXState initialized to zero */
-
- len = urb->transfer_buffer_length;
- is_input = usb_pipein (urb->pipe);
- if (usb_pipecontrol (urb->pipe)) {
- /* SETUP pid */
- qtd_fill(fusbh200, qtd, urb->setup_dma,
- sizeof (struct usb_ctrlrequest),
- token | (2 /* "setup" */ << 8), 8);
-
- /* ... and always at least one more pid */
- token ^= QTD_TOGGLE;
- qtd_prev = qtd;
- qtd = fusbh200_qtd_alloc (fusbh200, flags);
- if (unlikely (!qtd))
- goto cleanup;
- qtd->urb = urb;
- qtd_prev->hw_next = QTD_NEXT(fusbh200, qtd->qtd_dma);
- list_add_tail (&qtd->qtd_list, head);
-
- /* for zero length DATA stages, STATUS is always IN */
- if (len == 0)
- token |= (1 /* "in" */ << 8);
- }
-
- /*
- * data transfer stage: buffer setup
- */
- i = urb->num_mapped_sgs;
- if (len > 0 && i > 0) {
- sg = urb->sg;
- buf = sg_dma_address(sg);
-
- /* urb->transfer_buffer_length may be smaller than the
- * size of the scatterlist (or vice versa)
- */
- this_sg_len = min_t(int, sg_dma_len(sg), len);
- } else {
- sg = NULL;
- buf = urb->transfer_dma;
- this_sg_len = len;
- }
-
- if (is_input)
- token |= (1 /* "in" */ << 8);
- /* else it's already initted to "out" pid (0 << 8) */
-
- maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, !is_input));
-
- /*
- * buffer gets wrapped in one or more qtds;
- * last one may be "short" (including zero len)
- * and may serve as a control status ack
- */
- for (;;) {
- int this_qtd_len;
-
- this_qtd_len = qtd_fill(fusbh200, qtd, buf, this_sg_len, token,
- maxpacket);
- this_sg_len -= this_qtd_len;
- len -= this_qtd_len;
- buf += this_qtd_len;
-
- /*
- * short reads advance to a "magic" dummy instead of the next
- * qtd ... that forces the queue to stop, for manual cleanup.
- * (this will usually be overridden later.)
- */
- if (is_input)
- qtd->hw_alt_next = fusbh200->async->hw->hw_alt_next;
-
- /* qh makes control packets use qtd toggle; maybe switch it */
- if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0)
- token ^= QTD_TOGGLE;
-
- if (likely(this_sg_len <= 0)) {
- if (--i <= 0 || len <= 0)
- break;
- sg = sg_next(sg);
- buf = sg_dma_address(sg);
- this_sg_len = min_t(int, sg_dma_len(sg), len);
- }
-
- qtd_prev = qtd;
- qtd = fusbh200_qtd_alloc (fusbh200, flags);
- if (unlikely (!qtd))
- goto cleanup;
- qtd->urb = urb;
- qtd_prev->hw_next = QTD_NEXT(fusbh200, qtd->qtd_dma);
- list_add_tail (&qtd->qtd_list, head);
- }
-
- /*
- * unless the caller requires manual cleanup after short reads,
- * have the alt_next mechanism keep the queue running after the
- * last data qtd (the only one, for control and most other cases).
- */
- if (likely ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0
- || usb_pipecontrol (urb->pipe)))
- qtd->hw_alt_next = FUSBH200_LIST_END(fusbh200);
-
- /*
- * control requests may need a terminating data "status" ack;
- * other OUT ones may need a terminating short packet
- * (zero length).
- */
- if (likely (urb->transfer_buffer_length != 0)) {
- int one_more = 0;
-
- if (usb_pipecontrol (urb->pipe)) {
- one_more = 1;
- token ^= 0x0100; /* "in" <--> "out" */
- token |= QTD_TOGGLE; /* force DATA1 */
- } else if (usb_pipeout(urb->pipe)
- && (urb->transfer_flags & URB_ZERO_PACKET)
- && !(urb->transfer_buffer_length % maxpacket)) {
- one_more = 1;
- }
- if (one_more) {
- qtd_prev = qtd;
- qtd = fusbh200_qtd_alloc (fusbh200, flags);
- if (unlikely (!qtd))
- goto cleanup;
- qtd->urb = urb;
- qtd_prev->hw_next = QTD_NEXT(fusbh200, qtd->qtd_dma);
- list_add_tail (&qtd->qtd_list, head);
-
- /* never any data in such packets */
- qtd_fill(fusbh200, qtd, 0, 0, token, 0);
- }
- }
-
- /* by default, enable interrupt on urb completion */
- if (likely (!(urb->transfer_flags & URB_NO_INTERRUPT)))
- qtd->hw_token |= cpu_to_hc32(fusbh200, QTD_IOC);
- return head;
-
-cleanup:
- qtd_list_free (fusbh200, urb, head);
- return NULL;
-}
-
-/*-------------------------------------------------------------------------*/
-
-// Would be best to create all qh's from config descriptors,
-// when each interface/altsetting is established. Unlink
-// any previous qh and cancel its urbs first; endpoints are
-// implicitly reset then (data toggle too).
-// That'd mean updating how usbcore talks to HCDs. (2.7?)
-
-
-/*
- * Each QH holds a qtd list; a QH is used for everything except iso.
- *
- * For interrupt urbs, the scheduler must set the microframe scheduling
- * mask(s) each time the QH gets scheduled. For highspeed, that's
- * just one microframe in the s-mask. For split interrupt transactions
- * there are additional complications: c-mask, maybe FSTNs.
- */
-static struct fusbh200_qh *
-qh_make (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- gfp_t flags
-) {
- struct fusbh200_qh *qh = fusbh200_qh_alloc (fusbh200, flags);
- u32 info1 = 0, info2 = 0;
- int is_input, type;
- int maxp = 0;
- struct usb_tt *tt = urb->dev->tt;
- struct fusbh200_qh_hw *hw;
-
- if (!qh)
- return qh;
-
- /*
- * init endpoint/device data for this QH
- */
- info1 |= usb_pipeendpoint (urb->pipe) << 8;
- info1 |= usb_pipedevice (urb->pipe) << 0;
-
- is_input = usb_pipein (urb->pipe);
- type = usb_pipetype (urb->pipe);
- maxp = usb_maxpacket (urb->dev, urb->pipe, !is_input);
-
- /* 1024 byte maxpacket is a hardware ceiling. High bandwidth
- * acts like up to 3KB, but is built from smaller packets.
- */
- if (max_packet(maxp) > 1024) {
- fusbh200_dbg(fusbh200, "bogus qh maxpacket %d\n", max_packet(maxp));
- goto done;
- }
-
- /* Compute interrupt scheduling parameters just once, and save.
- * - allowing for high bandwidth, how many nsec/uframe are used?
- * - split transactions need a second CSPLIT uframe; same question
- * - splits also need a schedule gap (for full/low speed I/O)
- * - qh has a polling interval
- *
- * For control/bulk requests, the HC or TT handles these.
- */
- if (type == PIPE_INTERRUPT) {
- qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
- is_input, 0,
- hb_mult(maxp) * max_packet(maxp)));
- qh->start = NO_FRAME;
-
- if (urb->dev->speed == USB_SPEED_HIGH) {
- qh->c_usecs = 0;
- qh->gap_uf = 0;
-
- qh->period = urb->interval >> 3;
- if (qh->period == 0 && urb->interval != 1) {
- /* NOTE interval 2 or 4 uframes could work.
- * But interval 1 scheduling is simpler, and
- * includes high bandwidth.
- */
- urb->interval = 1;
- } else if (qh->period > fusbh200->periodic_size) {
- qh->period = fusbh200->periodic_size;
- urb->interval = qh->period << 3;
- }
- } else {
- int think_time;
-
- /* gap is f(FS/LS transfer times) */
- qh->gap_uf = 1 + usb_calc_bus_time (urb->dev->speed,
- is_input, 0, maxp) / (125 * 1000);
-
- /* FIXME this just approximates SPLIT/CSPLIT times */
- if (is_input) { // SPLIT, gap, CSPLIT+DATA
- qh->c_usecs = qh->usecs + HS_USECS (0);
- qh->usecs = HS_USECS (1);
- } else { // SPLIT+DATA, gap, CSPLIT
- qh->usecs += HS_USECS (1);
- qh->c_usecs = HS_USECS (0);
- }
-
- think_time = tt ? tt->think_time : 0;
- qh->tt_usecs = NS_TO_US (think_time +
- usb_calc_bus_time (urb->dev->speed,
- is_input, 0, max_packet (maxp)));
- qh->period = urb->interval;
- if (qh->period > fusbh200->periodic_size) {
- qh->period = fusbh200->periodic_size;
- urb->interval = qh->period;
- }
- }
- }
-
- /* support for tt scheduling, and access to toggles */
- qh->dev = urb->dev;
-
- /* using TT? */
- switch (urb->dev->speed) {
- case USB_SPEED_LOW:
- info1 |= QH_LOW_SPEED;
- /* FALL THROUGH */
-
- case USB_SPEED_FULL:
- /* EPS 0 means "full" */
- if (type != PIPE_INTERRUPT)
- info1 |= (FUSBH200_TUNE_RL_TT << 28);
- if (type == PIPE_CONTROL) {
- info1 |= QH_CONTROL_EP; /* for TT */
- info1 |= QH_TOGGLE_CTL; /* toggle from qtd */
- }
- info1 |= maxp << 16;
-
- info2 |= (FUSBH200_TUNE_MULT_TT << 30);
-
- /* Some Freescale processors have an erratum in which the
- * port number in the queue head was 0..N-1 instead of 1..N.
- */
- if (fusbh200_has_fsl_portno_bug(fusbh200))
- info2 |= (urb->dev->ttport-1) << 23;
- else
- info2 |= urb->dev->ttport << 23;
-
- /* set the address of the TT; for TDI's integrated
- * root hub tt, leave it zeroed.
- */
- if (tt && tt->hub != fusbh200_to_hcd(fusbh200)->self.root_hub)
- info2 |= tt->hub->devnum << 16;
-
- /* NOTE: if (PIPE_INTERRUPT) { scheduler sets c-mask } */
-
- break;
-
- case USB_SPEED_HIGH: /* no TT involved */
- info1 |= QH_HIGH_SPEED;
- if (type == PIPE_CONTROL) {
- info1 |= (FUSBH200_TUNE_RL_HS << 28);
- info1 |= 64 << 16; /* usb2 fixed maxpacket */
- info1 |= QH_TOGGLE_CTL; /* toggle from qtd */
- info2 |= (FUSBH200_TUNE_MULT_HS << 30);
- } else if (type == PIPE_BULK) {
- info1 |= (FUSBH200_TUNE_RL_HS << 28);
- /* The USB spec says that high speed bulk endpoints
- * always use 512 byte maxpacket. But some device
- * vendors decided to ignore that, and MSFT is happy
- * to help them do so. So now people expect to use
- * such nonconformant devices with Linux too; sigh.
- */
- info1 |= max_packet(maxp) << 16;
- info2 |= (FUSBH200_TUNE_MULT_HS << 30);
- } else { /* PIPE_INTERRUPT */
- info1 |= max_packet (maxp) << 16;
- info2 |= hb_mult (maxp) << 30;
- }
- break;
- default:
- fusbh200_dbg(fusbh200, "bogus dev %p speed %d\n", urb->dev,
- urb->dev->speed);
-done:
- qh_destroy(fusbh200, qh);
- return NULL;
- }
-
- /* NOTE: if (PIPE_INTERRUPT) { scheduler sets s-mask } */
-
- /* init as live, toggle clear, advance to dummy */
- qh->qh_state = QH_STATE_IDLE;
- hw = qh->hw;
- hw->hw_info1 = cpu_to_hc32(fusbh200, info1);
- hw->hw_info2 = cpu_to_hc32(fusbh200, info2);
- qh->is_out = !is_input;
- usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), !is_input, 1);
- qh_refresh (fusbh200, qh);
- return qh;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void enable_async(struct fusbh200_hcd *fusbh200)
-{
- if (fusbh200->async_count++)
- return;
-
- /* Stop waiting to turn off the async schedule */
- fusbh200->enabled_hrtimer_events &= ~BIT(FUSBH200_HRTIMER_DISABLE_ASYNC);
-
- /* Don't start the schedule until ASS is 0 */
- fusbh200_poll_ASS(fusbh200);
- turn_on_io_watchdog(fusbh200);
-}
-
-static void disable_async(struct fusbh200_hcd *fusbh200)
-{
- if (--fusbh200->async_count)
- return;
-
- /* The async schedule and async_unlink list are supposed to be empty */
- WARN_ON(fusbh200->async->qh_next.qh || fusbh200->async_unlink);
-
- /* Don't turn off the schedule until ASS is 1 */
- fusbh200_poll_ASS(fusbh200);
-}
-
-/* move qh (and its qtds) onto async queue; maybe enable queue. */
-
-static void qh_link_async (struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- __hc32 dma = QH_NEXT(fusbh200, qh->qh_dma);
- struct fusbh200_qh *head;
-
- /* Don't link a QH if there's a Clear-TT-Buffer pending */
- if (unlikely(qh->clearing_tt))
- return;
-
- WARN_ON(qh->qh_state != QH_STATE_IDLE);
-
- /* clear halt and/or toggle; and maybe recover from silicon quirk */
- qh_refresh(fusbh200, qh);
-
- /* splice right after start */
- head = fusbh200->async;
- qh->qh_next = head->qh_next;
- qh->hw->hw_next = head->hw->hw_next;
- wmb ();
-
- head->qh_next.qh = qh;
- head->hw->hw_next = dma;
-
- qh->xacterrs = 0;
- qh->qh_state = QH_STATE_LINKED;
- /* qtd completions reported later by interrupt */
-
- enable_async(fusbh200);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * For control/bulk/interrupt, return QH with these TDs appended.
- * Allocates and initializes the QH if necessary.
- * Returns null if it can't allocate a QH it needs to.
- * If the QH has TDs (urbs) already, that's great.
- */
-static struct fusbh200_qh *qh_append_tds (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct list_head *qtd_list,
- int epnum,
- void **ptr
-)
-{
- struct fusbh200_qh *qh = NULL;
- __hc32 qh_addr_mask = cpu_to_hc32(fusbh200, 0x7f);
-
- qh = (struct fusbh200_qh *) *ptr;
- if (unlikely (qh == NULL)) {
- /* can't sleep here, we have fusbh200->lock... */
- qh = qh_make (fusbh200, urb, GFP_ATOMIC);
- *ptr = qh;
- }
- if (likely (qh != NULL)) {
- struct fusbh200_qtd *qtd;
-
- if (unlikely (list_empty (qtd_list)))
- qtd = NULL;
- else
- qtd = list_entry (qtd_list->next, struct fusbh200_qtd,
- qtd_list);
-
- /* control qh may need patching ... */
- if (unlikely (epnum == 0)) {
-
- /* usb_reset_device() briefly reverts to address 0 */
- if (usb_pipedevice (urb->pipe) == 0)
- qh->hw->hw_info1 &= ~qh_addr_mask;
- }
-
- /* just one way to queue requests: swap with the dummy qtd.
- * only hc or qh_refresh() ever modify the overlay.
- */
- if (likely (qtd != NULL)) {
- struct fusbh200_qtd *dummy;
- dma_addr_t dma;
- __hc32 token;
-
- /* to avoid racing the HC, use the dummy td instead of
- * the first td of our list (becomes new dummy). both
- * tds stay deactivated until we're done, when the
- * HC is allowed to fetch the old dummy (4.10.2).
- */
- token = qtd->hw_token;
- qtd->hw_token = HALT_BIT(fusbh200);
-
- dummy = qh->dummy;
-
- dma = dummy->qtd_dma;
- *dummy = *qtd;
- dummy->qtd_dma = dma;
-
- list_del (&qtd->qtd_list);
- list_add (&dummy->qtd_list, qtd_list);
- list_splice_tail(qtd_list, &qh->qtd_list);
-
- fusbh200_qtd_init(fusbh200, qtd, qtd->qtd_dma);
- qh->dummy = qtd;
-
- /* hc must see the new dummy at list end */
- dma = qtd->qtd_dma;
- qtd = list_entry (qh->qtd_list.prev,
- struct fusbh200_qtd, qtd_list);
- qtd->hw_next = QTD_NEXT(fusbh200, dma);
-
- /* let the hc process these next qtds */
- wmb ();
- dummy->hw_token = token;
-
- urb->hcpriv = qh;
- }
- }
- return qh;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int
-submit_async (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct list_head *qtd_list,
- gfp_t mem_flags
-) {
- int epnum;
- unsigned long flags;
- struct fusbh200_qh *qh = NULL;
- int rc;
-
- epnum = urb->ep->desc.bEndpointAddress;
-
-#ifdef FUSBH200_URB_TRACE
- {
- struct fusbh200_qtd *qtd;
- qtd = list_entry(qtd_list->next, struct fusbh200_qtd, qtd_list);
- fusbh200_dbg(fusbh200,
- "%s %s urb %p ep%d%s len %d, qtd %p [qh %p]\n",
- __func__, urb->dev->devpath, urb,
- epnum & 0x0f, (epnum & USB_DIR_IN) ? "in" : "out",
- urb->transfer_buffer_length,
- qtd, urb->ep->hcpriv);
- }
-#endif
-
- spin_lock_irqsave (&fusbh200->lock, flags);
- if (unlikely(!HCD_HW_ACCESSIBLE(fusbh200_to_hcd(fusbh200)))) {
- rc = -ESHUTDOWN;
- goto done;
- }
- rc = usb_hcd_link_urb_to_ep(fusbh200_to_hcd(fusbh200), urb);
- if (unlikely(rc))
- goto done;
-
- qh = qh_append_tds(fusbh200, urb, qtd_list, epnum, &urb->ep->hcpriv);
- if (unlikely(qh == NULL)) {
- usb_hcd_unlink_urb_from_ep(fusbh200_to_hcd(fusbh200), urb);
- rc = -ENOMEM;
- goto done;
- }
-
- /* Control/bulk operations through TTs don't need scheduling,
- * the HC and TT handle it when the TT has a buffer ready.
- */
- if (likely (qh->qh_state == QH_STATE_IDLE))
- qh_link_async(fusbh200, qh);
- done:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- if (unlikely (qh == NULL))
- qtd_list_free (fusbh200, urb, qtd_list);
- return rc;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void single_unlink_async(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- struct fusbh200_qh *prev;
-
- /* Add to the end of the list of QHs waiting for the next IAAD */
- qh->qh_state = QH_STATE_UNLINK;
- if (fusbh200->async_unlink)
- fusbh200->async_unlink_last->unlink_next = qh;
- else
- fusbh200->async_unlink = qh;
- fusbh200->async_unlink_last = qh;
-
- /* Unlink it from the schedule */
- prev = fusbh200->async;
- while (prev->qh_next.qh != qh)
- prev = prev->qh_next.qh;
-
- prev->hw->hw_next = qh->hw->hw_next;
- prev->qh_next = qh->qh_next;
- if (fusbh200->qh_scan_next == qh)
- fusbh200->qh_scan_next = qh->qh_next.qh;
-}
-
-static void start_iaa_cycle(struct fusbh200_hcd *fusbh200, bool nested)
-{
- /*
- * Do nothing if an IAA cycle is already running or
- * if one will be started shortly.
- */
- if (fusbh200->async_iaa || fusbh200->async_unlinking)
- return;
-
- /* Do all the waiting QHs at once */
- fusbh200->async_iaa = fusbh200->async_unlink;
- fusbh200->async_unlink = NULL;
-
- /* If the controller isn't running, we don't have to wait for it */
- if (unlikely(fusbh200->rh_state < FUSBH200_RH_RUNNING)) {
- if (!nested) /* Avoid recursion */
- end_unlink_async(fusbh200);
-
- /* Otherwise start a new IAA cycle */
- } else if (likely(fusbh200->rh_state == FUSBH200_RH_RUNNING)) {
- /* Make sure the unlinks are all visible to the hardware */
- wmb();
-
- fusbh200_writel(fusbh200, fusbh200->command | CMD_IAAD,
- &fusbh200->regs->command);
- fusbh200_readl(fusbh200, &fusbh200->regs->command);
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_IAA_WATCHDOG, true);
- }
-}
-
-/* the async qh for the qtds being unlinked are now gone from the HC */
-
-static void end_unlink_async(struct fusbh200_hcd *fusbh200)
-{
- struct fusbh200_qh *qh;
-
- /* Process the idle QHs */
- restart:
- fusbh200->async_unlinking = true;
- while (fusbh200->async_iaa) {
- qh = fusbh200->async_iaa;
- fusbh200->async_iaa = qh->unlink_next;
- qh->unlink_next = NULL;
-
- qh->qh_state = QH_STATE_IDLE;
- qh->qh_next.qh = NULL;
-
- qh_completions(fusbh200, qh);
- if (!list_empty(&qh->qtd_list) &&
- fusbh200->rh_state == FUSBH200_RH_RUNNING)
- qh_link_async(fusbh200, qh);
- disable_async(fusbh200);
- }
- fusbh200->async_unlinking = false;
-
- /* Start a new IAA cycle if any QHs are waiting for it */
- if (fusbh200->async_unlink) {
- start_iaa_cycle(fusbh200, true);
- if (unlikely(fusbh200->rh_state < FUSBH200_RH_RUNNING))
- goto restart;
- }
-}
-
-static void unlink_empty_async(struct fusbh200_hcd *fusbh200)
-{
- struct fusbh200_qh *qh, *next;
- bool stopped = (fusbh200->rh_state < FUSBH200_RH_RUNNING);
- bool check_unlinks_later = false;
-
- /* Unlink all the async QHs that have been empty for a timer cycle */
- next = fusbh200->async->qh_next.qh;
- while (next) {
- qh = next;
- next = qh->qh_next.qh;
-
- if (list_empty(&qh->qtd_list) &&
- qh->qh_state == QH_STATE_LINKED) {
- if (!stopped && qh->unlink_cycle ==
- fusbh200->async_unlink_cycle)
- check_unlinks_later = true;
- else
- single_unlink_async(fusbh200, qh);
- }
- }
-
- /* Start a new IAA cycle if any QHs are waiting for it */
- if (fusbh200->async_unlink)
- start_iaa_cycle(fusbh200, false);
-
- /* QHs that haven't been empty for long enough will be handled later */
- if (check_unlinks_later) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_ASYNC_UNLINKS, true);
- ++fusbh200->async_unlink_cycle;
- }
-}
-
-/* makes sure the async qh will become idle */
-/* caller must own fusbh200->lock */
-
-static void start_unlink_async(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- /*
- * If the QH isn't linked then there's nothing we can do
- * unless we were called during a giveback, in which case
- * qh_completions() has to deal with it.
- */
- if (qh->qh_state != QH_STATE_LINKED) {
- if (qh->qh_state == QH_STATE_COMPLETING)
- qh->needs_rescan = 1;
- return;
- }
-
- single_unlink_async(fusbh200, qh);
- start_iaa_cycle(fusbh200, false);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void scan_async (struct fusbh200_hcd *fusbh200)
-{
- struct fusbh200_qh *qh;
- bool check_unlinks_later = false;
-
- fusbh200->qh_scan_next = fusbh200->async->qh_next.qh;
- while (fusbh200->qh_scan_next) {
- qh = fusbh200->qh_scan_next;
- fusbh200->qh_scan_next = qh->qh_next.qh;
- rescan:
- /* clean any finished work for this qh */
- if (!list_empty(&qh->qtd_list)) {
- int temp;
-
- /*
- * Unlinks could happen here; completion reporting
- * drops the lock. That's why fusbh200->qh_scan_next
- * always holds the next qh to scan; if the next qh
- * gets unlinked then fusbh200->qh_scan_next is adjusted
- * in single_unlink_async().
- */
- temp = qh_completions(fusbh200, qh);
- if (qh->needs_rescan) {
- start_unlink_async(fusbh200, qh);
- } else if (list_empty(&qh->qtd_list)
- && qh->qh_state == QH_STATE_LINKED) {
- qh->unlink_cycle = fusbh200->async_unlink_cycle;
- check_unlinks_later = true;
- } else if (temp != 0)
- goto rescan;
- }
- }
-
- /*
- * Unlink empty entries, reducing DMA usage as well
- * as HCD schedule-scanning costs. Delay for any qh
- * we just scanned, there's a not-unusual case that it
- * doesn't stay idle for long.
- */
- if (check_unlinks_later && fusbh200->rh_state == FUSBH200_RH_RUNNING &&
- !(fusbh200->enabled_hrtimer_events &
- BIT(FUSBH200_HRTIMER_ASYNC_UNLINKS))) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_ASYNC_UNLINKS, true);
- ++fusbh200->async_unlink_cycle;
- }
-}
-/*-------------------------------------------------------------------------*/
-/*
- * EHCI scheduled transaction support: interrupt, iso, split iso
- * These are called "periodic" transactions in the EHCI spec.
- *
- * Note that for interrupt transfers, the QH/QTD manipulation is shared
- * with the "asynchronous" transaction support (control/bulk transfers).
- * The only real difference is in how interrupt transfers are scheduled.
- *
- * For ISO, we make an "iso_stream" head to serve the same role as a QH.
- * It keeps track of every ITD (or SITD) that's linked, and holds enough
- * pre-calculated schedule data to make appending to the queue be quick.
- */
-
-static int fusbh200_get_frame (struct usb_hcd *hcd);
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * periodic_next_shadow - return "next" pointer on shadow list
- * @periodic: host pointer to qh/itd
- * @tag: hardware tag for type of this record
- */
-static union fusbh200_shadow *
-periodic_next_shadow(struct fusbh200_hcd *fusbh200, union fusbh200_shadow *periodic,
- __hc32 tag)
-{
- switch (hc32_to_cpu(fusbh200, tag)) {
- case Q_TYPE_QH:
- return &periodic->qh->qh_next;
- case Q_TYPE_FSTN:
- return &periodic->fstn->fstn_next;
- default:
- return &periodic->itd->itd_next;
- }
-}
-
-static __hc32 *
-shadow_next_periodic(struct fusbh200_hcd *fusbh200, union fusbh200_shadow *periodic,
- __hc32 tag)
-{
- switch (hc32_to_cpu(fusbh200, tag)) {
- /* our fusbh200_shadow.qh is actually software part */
- case Q_TYPE_QH:
- return &periodic->qh->hw->hw_next;
- /* others are hw parts */
- default:
- return periodic->hw_next;
- }
-}
-
-/* caller must hold fusbh200->lock */
-static void periodic_unlink (struct fusbh200_hcd *fusbh200, unsigned frame, void *ptr)
-{
- union fusbh200_shadow *prev_p = &fusbh200->pshadow[frame];
- __hc32 *hw_p = &fusbh200->periodic[frame];
- union fusbh200_shadow here = *prev_p;
-
- /* find predecessor of "ptr"; hw and shadow lists are in sync */
- while (here.ptr && here.ptr != ptr) {
- prev_p = periodic_next_shadow(fusbh200, prev_p,
- Q_NEXT_TYPE(fusbh200, *hw_p));
- hw_p = shadow_next_periodic(fusbh200, &here,
- Q_NEXT_TYPE(fusbh200, *hw_p));
- here = *prev_p;
- }
- /* an interrupt entry (at list end) could have been shared */
- if (!here.ptr)
- return;
-
- /* update shadow and hardware lists ... the old "next" pointers
- * from ptr may still be in use, the caller updates them.
- */
- *prev_p = *periodic_next_shadow(fusbh200, &here,
- Q_NEXT_TYPE(fusbh200, *hw_p));
-
- *hw_p = *shadow_next_periodic(fusbh200, &here,
- Q_NEXT_TYPE(fusbh200, *hw_p));
-}
-
-/* how many of the uframe's 125 usecs are allocated? */
-static unsigned short
-periodic_usecs (struct fusbh200_hcd *fusbh200, unsigned frame, unsigned uframe)
-{
- __hc32 *hw_p = &fusbh200->periodic [frame];
- union fusbh200_shadow *q = &fusbh200->pshadow [frame];
- unsigned usecs = 0;
- struct fusbh200_qh_hw *hw;
-
- while (q->ptr) {
- switch (hc32_to_cpu(fusbh200, Q_NEXT_TYPE(fusbh200, *hw_p))) {
- case Q_TYPE_QH:
- hw = q->qh->hw;
- /* is it in the S-mask? */
- if (hw->hw_info2 & cpu_to_hc32(fusbh200, 1 << uframe))
- usecs += q->qh->usecs;
- /* ... or C-mask? */
- if (hw->hw_info2 & cpu_to_hc32(fusbh200,
- 1 << (8 + uframe)))
- usecs += q->qh->c_usecs;
- hw_p = &hw->hw_next;
- q = &q->qh->qh_next;
- break;
- // case Q_TYPE_FSTN:
- default:
- /* for "save place" FSTNs, count the relevant INTR
- * bandwidth from the previous frame
- */
- if (q->fstn->hw_prev != FUSBH200_LIST_END(fusbh200)) {
- fusbh200_dbg (fusbh200, "ignoring FSTN cost ...\n");
- }
- hw_p = &q->fstn->hw_next;
- q = &q->fstn->fstn_next;
- break;
- case Q_TYPE_ITD:
- if (q->itd->hw_transaction[uframe])
- usecs += q->itd->stream->usecs;
- hw_p = &q->itd->hw_next;
- q = &q->itd->itd_next;
- break;
- }
- }
- if (usecs > fusbh200->uframe_periodic_max)
- fusbh200_err (fusbh200, "uframe %d sched overrun: %d usecs\n",
- frame * 8 + uframe, usecs);
- return usecs;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int same_tt (struct usb_device *dev1, struct usb_device *dev2)
-{
- if (!dev1->tt || !dev2->tt)
- return 0;
- if (dev1->tt != dev2->tt)
- return 0;
- if (dev1->tt->multi)
- return dev1->ttport == dev2->ttport;
- else
- return 1;
-}
-
-/* return true iff the device's transaction translator is available
- * for a periodic transfer starting at the specified frame, using
- * all the uframes in the mask.
- */
-static int tt_no_collision (
- struct fusbh200_hcd *fusbh200,
- unsigned period,
- struct usb_device *dev,
- unsigned frame,
- u32 uf_mask
-)
-{
- if (period == 0) /* error */
- return 0;
-
- /* note bandwidth wastage: split never follows csplit
- * (different dev or endpoint) until the next uframe.
- * calling convention doesn't make that distinction.
- */
- for (; frame < fusbh200->periodic_size; frame += period) {
- union fusbh200_shadow here;
- __hc32 type;
- struct fusbh200_qh_hw *hw;
-
- here = fusbh200->pshadow [frame];
- type = Q_NEXT_TYPE(fusbh200, fusbh200->periodic [frame]);
- while (here.ptr) {
- switch (hc32_to_cpu(fusbh200, type)) {
- case Q_TYPE_ITD:
- type = Q_NEXT_TYPE(fusbh200, here.itd->hw_next);
- here = here.itd->itd_next;
- continue;
- case Q_TYPE_QH:
- hw = here.qh->hw;
- if (same_tt (dev, here.qh->dev)) {
- u32 mask;
-
- mask = hc32_to_cpu(fusbh200,
- hw->hw_info2);
- /* "knows" no gap is needed */
- mask |= mask >> 8;
- if (mask & uf_mask)
- break;
- }
- type = Q_NEXT_TYPE(fusbh200, hw->hw_next);
- here = here.qh->qh_next;
- continue;
- // case Q_TYPE_FSTN:
- default:
- fusbh200_dbg (fusbh200,
- "periodic frame %d bogus type %d\n",
- frame, type);
- }
-
- /* collision or error */
- return 0;
- }
- }
-
- /* no collision */
- return 1;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void enable_periodic(struct fusbh200_hcd *fusbh200)
-{
- if (fusbh200->periodic_count++)
- return;
-
- /* Stop waiting to turn off the periodic schedule */
- fusbh200->enabled_hrtimer_events &= ~BIT(FUSBH200_HRTIMER_DISABLE_PERIODIC);
-
- /* Don't start the schedule until PSS is 0 */
- fusbh200_poll_PSS(fusbh200);
- turn_on_io_watchdog(fusbh200);
-}
-
-static void disable_periodic(struct fusbh200_hcd *fusbh200)
-{
- if (--fusbh200->periodic_count)
- return;
-
- /* Don't turn off the schedule until PSS is 1 */
- fusbh200_poll_PSS(fusbh200);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* periodic schedule slots have iso tds (normal or split) first, then a
- * sparse tree for active interrupt transfers.
- *
- * this just links in a qh; caller guarantees uframe masks are set right.
- * no FSTN support (yet; fusbh200 0.96+)
- */
-static void qh_link_periodic(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- unsigned i;
- unsigned period = qh->period;
-
- dev_dbg (&qh->dev->dev,
- "link qh%d-%04x/%p start %d [%d/%d us]\n",
- period, hc32_to_cpup(fusbh200, &qh->hw->hw_info2)
- & (QH_CMASK | QH_SMASK),
- qh, qh->start, qh->usecs, qh->c_usecs);
-
- /* high bandwidth, or otherwise every microframe */
- if (period == 0)
- period = 1;
-
- for (i = qh->start; i < fusbh200->periodic_size; i += period) {
- union fusbh200_shadow *prev = &fusbh200->pshadow[i];
- __hc32 *hw_p = &fusbh200->periodic[i];
- union fusbh200_shadow here = *prev;
- __hc32 type = 0;
-
- /* skip the iso nodes at list head */
- while (here.ptr) {
- type = Q_NEXT_TYPE(fusbh200, *hw_p);
- if (type == cpu_to_hc32(fusbh200, Q_TYPE_QH))
- break;
- prev = periodic_next_shadow(fusbh200, prev, type);
- hw_p = shadow_next_periodic(fusbh200, &here, type);
- here = *prev;
- }
-
- /* sorting each branch by period (slow-->fast)
- * enables sharing interior tree nodes
- */
- while (here.ptr && qh != here.qh) {
- if (qh->period > here.qh->period)
- break;
- prev = &here.qh->qh_next;
- hw_p = &here.qh->hw->hw_next;
- here = *prev;
- }
- /* link in this qh, unless some earlier pass did that */
- if (qh != here.qh) {
- qh->qh_next = here;
- if (here.qh)
- qh->hw->hw_next = *hw_p;
- wmb ();
- prev->qh = qh;
- *hw_p = QH_NEXT (fusbh200, qh->qh_dma);
- }
- }
- qh->qh_state = QH_STATE_LINKED;
- qh->xacterrs = 0;
-
- /* update per-qh bandwidth for usbfs */
- fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated += qh->period
- ? ((qh->usecs + qh->c_usecs) / qh->period)
- : (qh->usecs * 8);
-
- list_add(&qh->intr_node, &fusbh200->intr_qh_list);
-
- /* maybe enable periodic schedule processing */
- ++fusbh200->intr_count;
- enable_periodic(fusbh200);
-}
-
-static void qh_unlink_periodic(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- unsigned i;
- unsigned period;
-
- /*
- * If qh is for a low/full-speed device, simply unlinking it
- * could interfere with an ongoing split transaction. To unlink
- * it safely would require setting the QH_INACTIVATE bit and
- * waiting at least one frame, as described in EHCI 4.12.2.5.
- *
- * We won't bother with any of this. Instead, we assume that the
- * only reason for unlinking an interrupt QH while the current URB
- * is still active is to dequeue all the URBs (flush the whole
- * endpoint queue).
- *
- * If rebalancing the periodic schedule is ever implemented, this
- * approach will no longer be valid.
- */
-
- /* high bandwidth, or otherwise part of every microframe */
- if ((period = qh->period) == 0)
- period = 1;
-
- for (i = qh->start; i < fusbh200->periodic_size; i += period)
- periodic_unlink (fusbh200, i, qh);
-
- /* update per-qh bandwidth for usbfs */
- fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated -= qh->period
- ? ((qh->usecs + qh->c_usecs) / qh->period)
- : (qh->usecs * 8);
-
- dev_dbg (&qh->dev->dev,
- "unlink qh%d-%04x/%p start %d [%d/%d us]\n",
- qh->period,
- hc32_to_cpup(fusbh200, &qh->hw->hw_info2) & (QH_CMASK | QH_SMASK),
- qh, qh->start, qh->usecs, qh->c_usecs);
-
- /* qh->qh_next still "live" to HC */
- qh->qh_state = QH_STATE_UNLINK;
- qh->qh_next.ptr = NULL;
-
- if (fusbh200->qh_scan_next == qh)
- fusbh200->qh_scan_next = list_entry(qh->intr_node.next,
- struct fusbh200_qh, intr_node);
- list_del(&qh->intr_node);
-}
-
-static void start_unlink_intr(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- /* If the QH isn't linked then there's nothing we can do
- * unless we were called during a giveback, in which case
- * qh_completions() has to deal with it.
- */
- if (qh->qh_state != QH_STATE_LINKED) {
- if (qh->qh_state == QH_STATE_COMPLETING)
- qh->needs_rescan = 1;
- return;
- }
-
- qh_unlink_periodic (fusbh200, qh);
-
- /* Make sure the unlinks are visible before starting the timer */
- wmb();
-
- /*
- * The EHCI spec doesn't say how long it takes the controller to
- * stop accessing an unlinked interrupt QH. The timer delay is
- * 9 uframes; presumably that will be long enough.
- */
- qh->unlink_cycle = fusbh200->intr_unlink_cycle;
-
- /* New entries go at the end of the intr_unlink list */
- if (fusbh200->intr_unlink)
- fusbh200->intr_unlink_last->unlink_next = qh;
- else
- fusbh200->intr_unlink = qh;
- fusbh200->intr_unlink_last = qh;
-
- if (fusbh200->intr_unlinking)
- ; /* Avoid recursive calls */
- else if (fusbh200->rh_state < FUSBH200_RH_RUNNING)
- fusbh200_handle_intr_unlinks(fusbh200);
- else if (fusbh200->intr_unlink == qh) {
- fusbh200_enable_event(fusbh200, FUSBH200_HRTIMER_UNLINK_INTR, true);
- ++fusbh200->intr_unlink_cycle;
- }
-}
-
-static void end_unlink_intr(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- struct fusbh200_qh_hw *hw = qh->hw;
- int rc;
-
- qh->qh_state = QH_STATE_IDLE;
- hw->hw_next = FUSBH200_LIST_END(fusbh200);
-
- qh_completions(fusbh200, qh);
-
- /* reschedule QH iff another request is queued */
- if (!list_empty(&qh->qtd_list) && fusbh200->rh_state == FUSBH200_RH_RUNNING) {
- rc = qh_schedule(fusbh200, qh);
-
- /* An error here likely indicates handshake failure
- * or no space left in the schedule. Neither fault
- * should happen often ...
- *
- * FIXME kill the now-dysfunctional queued urbs
- */
- if (rc != 0)
- fusbh200_err(fusbh200, "can't reschedule qh %p, err %d\n",
- qh, rc);
- }
-
- /* maybe turn off periodic schedule */
- --fusbh200->intr_count;
- disable_periodic(fusbh200);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int check_period (
- struct fusbh200_hcd *fusbh200,
- unsigned frame,
- unsigned uframe,
- unsigned period,
- unsigned usecs
-) {
- int claimed;
-
- /* complete split running into next frame?
- * given FSTN support, we could sometimes check...
- */
- if (uframe >= 8)
- return 0;
-
- /* convert "usecs we need" to "max already claimed" */
- usecs = fusbh200->uframe_periodic_max - usecs;
-
- /* we "know" 2 and 4 uframe intervals were rejected; so
- * for period 0, check _every_ microframe in the schedule.
- */
- if (unlikely (period == 0)) {
- do {
- for (uframe = 0; uframe < 7; uframe++) {
- claimed = periodic_usecs (fusbh200, frame, uframe);
- if (claimed > usecs)
- return 0;
- }
- } while ((frame += 1) < fusbh200->periodic_size);
-
- /* just check the specified uframe, at that period */
- } else {
- do {
- claimed = periodic_usecs (fusbh200, frame, uframe);
- if (claimed > usecs)
- return 0;
- } while ((frame += period) < fusbh200->periodic_size);
- }
-
- // success!
- return 1;
-}
-
-static int check_intr_schedule (
- struct fusbh200_hcd *fusbh200,
- unsigned frame,
- unsigned uframe,
- const struct fusbh200_qh *qh,
- __hc32 *c_maskp
-)
-{
- int retval = -ENOSPC;
- u8 mask = 0;
-
- if (qh->c_usecs && uframe >= 6) /* FSTN territory? */
- goto done;
-
- if (!check_period (fusbh200, frame, uframe, qh->period, qh->usecs))
- goto done;
- if (!qh->c_usecs) {
- retval = 0;
- *c_maskp = 0;
- goto done;
- }
-
- /* Make sure this tt's buffer is also available for CSPLITs.
- * We pessimize a bit; probably the typical full speed case
- * doesn't need the second CSPLIT.
- *
- * NOTE: both SPLIT and CSPLIT could be checked in just
- * one smart pass...
- */
- mask = 0x03 << (uframe + qh->gap_uf);
- *c_maskp = cpu_to_hc32(fusbh200, mask << 8);
-
- mask |= 1 << uframe;
- if (tt_no_collision (fusbh200, qh->period, qh->dev, frame, mask)) {
- if (!check_period (fusbh200, frame, uframe + qh->gap_uf + 1,
- qh->period, qh->c_usecs))
- goto done;
- if (!check_period (fusbh200, frame, uframe + qh->gap_uf,
- qh->period, qh->c_usecs))
- goto done;
- retval = 0;
- }
-done:
- return retval;
-}
-
-/* "first fit" scheduling policy used the first time through,
- * or when the previous schedule slot can't be re-used.
- */
-static int qh_schedule(struct fusbh200_hcd *fusbh200, struct fusbh200_qh *qh)
-{
- int status;
- unsigned uframe;
- __hc32 c_mask;
- unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */
- struct fusbh200_qh_hw *hw = qh->hw;
-
- qh_refresh(fusbh200, qh);
- hw->hw_next = FUSBH200_LIST_END(fusbh200);
- frame = qh->start;
-
- /* reuse the previous schedule slots, if we can */
- if (frame < qh->period) {
- uframe = ffs(hc32_to_cpup(fusbh200, &hw->hw_info2) & QH_SMASK);
- status = check_intr_schedule (fusbh200, frame, --uframe,
- qh, &c_mask);
- } else {
- uframe = 0;
- c_mask = 0;
- status = -ENOSPC;
- }
-
- /* else scan the schedule to find a group of slots such that all
- * uframes have enough periodic bandwidth available.
- */
- if (status) {
- /* "normal" case, uframing flexible except with splits */
- if (qh->period) {
- int i;
-
- for (i = qh->period; status && i > 0; --i) {
- frame = ++fusbh200->random_frame % qh->period;
- for (uframe = 0; uframe < 8; uframe++) {
- status = check_intr_schedule (fusbh200,
- frame, uframe, qh,
- &c_mask);
- if (status == 0)
- break;
- }
- }
-
- /* qh->period == 0 means every uframe */
- } else {
- frame = 0;
- status = check_intr_schedule (fusbh200, 0, 0, qh, &c_mask);
- }
- if (status)
- goto done;
- qh->start = frame;
-
- /* reset S-frame and (maybe) C-frame masks */
- hw->hw_info2 &= cpu_to_hc32(fusbh200, ~(QH_CMASK | QH_SMASK));
- hw->hw_info2 |= qh->period
- ? cpu_to_hc32(fusbh200, 1 << uframe)
- : cpu_to_hc32(fusbh200, QH_SMASK);
- hw->hw_info2 |= c_mask;
- } else
- fusbh200_dbg (fusbh200, "reused qh %p schedule\n", qh);
-
- /* stuff into the periodic schedule */
- qh_link_periodic(fusbh200, qh);
-done:
- return status;
-}
-
-static int intr_submit (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct list_head *qtd_list,
- gfp_t mem_flags
-) {
- unsigned epnum;
- unsigned long flags;
- struct fusbh200_qh *qh;
- int status;
- struct list_head empty;
-
- /* get endpoint and transfer/schedule data */
- epnum = urb->ep->desc.bEndpointAddress;
-
- spin_lock_irqsave (&fusbh200->lock, flags);
-
- if (unlikely(!HCD_HW_ACCESSIBLE(fusbh200_to_hcd(fusbh200)))) {
- status = -ESHUTDOWN;
- goto done_not_linked;
- }
- status = usb_hcd_link_urb_to_ep(fusbh200_to_hcd(fusbh200), urb);
- if (unlikely(status))
- goto done_not_linked;
-
- /* get qh and force any scheduling errors */
- INIT_LIST_HEAD (&empty);
- qh = qh_append_tds(fusbh200, urb, &empty, epnum, &urb->ep->hcpriv);
- if (qh == NULL) {
- status = -ENOMEM;
- goto done;
- }
- if (qh->qh_state == QH_STATE_IDLE) {
- if ((status = qh_schedule (fusbh200, qh)) != 0)
- goto done;
- }
-
- /* then queue the urb's tds to the qh */
- qh = qh_append_tds(fusbh200, urb, qtd_list, epnum, &urb->ep->hcpriv);
- BUG_ON (qh == NULL);
-
- /* ... update usbfs periodic stats */
- fusbh200_to_hcd(fusbh200)->self.bandwidth_int_reqs++;
-
-done:
- if (unlikely(status))
- usb_hcd_unlink_urb_from_ep(fusbh200_to_hcd(fusbh200), urb);
-done_not_linked:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- if (status)
- qtd_list_free (fusbh200, urb, qtd_list);
-
- return status;
-}
-
-static void scan_intr(struct fusbh200_hcd *fusbh200)
-{
- struct fusbh200_qh *qh;
-
- list_for_each_entry_safe(qh, fusbh200->qh_scan_next, &fusbh200->intr_qh_list,
- intr_node) {
- rescan:
- /* clean any finished work for this qh */
- if (!list_empty(&qh->qtd_list)) {
- int temp;
-
- /*
- * Unlinks could happen here; completion reporting
- * drops the lock. That's why fusbh200->qh_scan_next
- * always holds the next qh to scan; if the next qh
- * gets unlinked then fusbh200->qh_scan_next is adjusted
- * in qh_unlink_periodic().
- */
- temp = qh_completions(fusbh200, qh);
- if (unlikely(qh->needs_rescan ||
- (list_empty(&qh->qtd_list) &&
- qh->qh_state == QH_STATE_LINKED)))
- start_unlink_intr(fusbh200, qh);
- else if (temp != 0)
- goto rescan;
- }
- }
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* fusbh200_iso_stream ops work with both ITD and SITD */
-
-static struct fusbh200_iso_stream *
-iso_stream_alloc (gfp_t mem_flags)
-{
- struct fusbh200_iso_stream *stream;
-
- stream = kzalloc(sizeof *stream, mem_flags);
- if (likely (stream != NULL)) {
- INIT_LIST_HEAD(&stream->td_list);
- INIT_LIST_HEAD(&stream->free_list);
- stream->next_uframe = -1;
- }
- return stream;
-}
-
-static void
-iso_stream_init (
- struct fusbh200_hcd *fusbh200,
- struct fusbh200_iso_stream *stream,
- struct usb_device *dev,
- int pipe,
- unsigned interval
-)
-{
- u32 buf1;
- unsigned epnum, maxp;
- int is_input;
- long bandwidth;
- unsigned multi;
-
- /*
- * this might be a "high bandwidth" highspeed endpoint,
- * as encoded in the ep descriptor's wMaxPacket field
- */
- epnum = usb_pipeendpoint (pipe);
- is_input = usb_pipein (pipe) ? USB_DIR_IN : 0;
- maxp = usb_maxpacket(dev, pipe, !is_input);
- if (is_input) {
- buf1 = (1 << 11);
- } else {
- buf1 = 0;
- }
-
- maxp = max_packet(maxp);
- multi = hb_mult(maxp);
- buf1 |= maxp;
- maxp *= multi;
-
- stream->buf0 = cpu_to_hc32(fusbh200, (epnum << 8) | dev->devnum);
- stream->buf1 = cpu_to_hc32(fusbh200, buf1);
- stream->buf2 = cpu_to_hc32(fusbh200, multi);
-
- /* usbfs wants to report the average usecs per frame tied up
- * when transfers on this endpoint are scheduled ...
- */
- if (dev->speed == USB_SPEED_FULL) {
- interval <<= 3;
- stream->usecs = NS_TO_US(usb_calc_bus_time(dev->speed,
- is_input, 1, maxp));
- stream->usecs /= 8;
- } else {
- stream->highspeed = 1;
- stream->usecs = HS_USECS_ISO (maxp);
- }
- bandwidth = stream->usecs * 8;
- bandwidth /= interval;
-
- stream->bandwidth = bandwidth;
- stream->udev = dev;
- stream->bEndpointAddress = is_input | epnum;
- stream->interval = interval;
- stream->maxp = maxp;
-}
-
-static struct fusbh200_iso_stream *
-iso_stream_find (struct fusbh200_hcd *fusbh200, struct urb *urb)
-{
- unsigned epnum;
- struct fusbh200_iso_stream *stream;
- struct usb_host_endpoint *ep;
- unsigned long flags;
-
- epnum = usb_pipeendpoint (urb->pipe);
- if (usb_pipein(urb->pipe))
- ep = urb->dev->ep_in[epnum];
- else
- ep = urb->dev->ep_out[epnum];
-
- spin_lock_irqsave (&fusbh200->lock, flags);
- stream = ep->hcpriv;
-
- if (unlikely (stream == NULL)) {
- stream = iso_stream_alloc(GFP_ATOMIC);
- if (likely (stream != NULL)) {
- ep->hcpriv = stream;
- stream->ep = ep;
- iso_stream_init(fusbh200, stream, urb->dev, urb->pipe,
- urb->interval);
- }
-
- /* if dev->ep [epnum] is a QH, hw is set */
- } else if (unlikely (stream->hw != NULL)) {
- fusbh200_dbg (fusbh200, "dev %s ep%d%s, not iso??\n",
- urb->dev->devpath, epnum,
- usb_pipein(urb->pipe) ? "in" : "out");
- stream = NULL;
- }
-
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- return stream;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* fusbh200_iso_sched ops can be ITD-only or SITD-only */
-
-static struct fusbh200_iso_sched *
-iso_sched_alloc (unsigned packets, gfp_t mem_flags)
-{
- struct fusbh200_iso_sched *iso_sched;
- int size = sizeof *iso_sched;
-
- size += packets * sizeof (struct fusbh200_iso_packet);
- iso_sched = kzalloc(size, mem_flags);
- if (likely (iso_sched != NULL)) {
- INIT_LIST_HEAD (&iso_sched->td_list);
- }
- return iso_sched;
-}
-
-static inline void
-itd_sched_init(
- struct fusbh200_hcd *fusbh200,
- struct fusbh200_iso_sched *iso_sched,
- struct fusbh200_iso_stream *stream,
- struct urb *urb
-)
-{
- unsigned i;
- dma_addr_t dma = urb->transfer_dma;
-
- /* how many uframes are needed for these transfers */
- iso_sched->span = urb->number_of_packets * stream->interval;
-
- /* figure out per-uframe itd fields that we'll need later
- * when we fit new itds into the schedule.
- */
- for (i = 0; i < urb->number_of_packets; i++) {
- struct fusbh200_iso_packet *uframe = &iso_sched->packet [i];
- unsigned length;
- dma_addr_t buf;
- u32 trans;
-
- length = urb->iso_frame_desc [i].length;
- buf = dma + urb->iso_frame_desc [i].offset;
-
- trans = FUSBH200_ISOC_ACTIVE;
- trans |= buf & 0x0fff;
- if (unlikely (((i + 1) == urb->number_of_packets))
- && !(urb->transfer_flags & URB_NO_INTERRUPT))
- trans |= FUSBH200_ITD_IOC;
- trans |= length << 16;
- uframe->transaction = cpu_to_hc32(fusbh200, trans);
-
- /* might need to cross a buffer page within a uframe */
- uframe->bufp = (buf & ~(u64)0x0fff);
- buf += length;
- if (unlikely ((uframe->bufp != (buf & ~(u64)0x0fff))))
- uframe->cross = 1;
- }
-}
-
-static void
-iso_sched_free (
- struct fusbh200_iso_stream *stream,
- struct fusbh200_iso_sched *iso_sched
-)
-{
- if (!iso_sched)
- return;
- // caller must hold fusbh200->lock!
- list_splice (&iso_sched->td_list, &stream->free_list);
- kfree (iso_sched);
-}
-
-static int
-itd_urb_transaction (
- struct fusbh200_iso_stream *stream,
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- gfp_t mem_flags
-)
-{
- struct fusbh200_itd *itd;
- dma_addr_t itd_dma;
- int i;
- unsigned num_itds;
- struct fusbh200_iso_sched *sched;
- unsigned long flags;
-
- sched = iso_sched_alloc (urb->number_of_packets, mem_flags);
- if (unlikely (sched == NULL))
- return -ENOMEM;
-
- itd_sched_init(fusbh200, sched, stream, urb);
-
- if (urb->interval < 8)
- num_itds = 1 + (sched->span + 7) / 8;
- else
- num_itds = urb->number_of_packets;
-
- /* allocate/init ITDs */
- spin_lock_irqsave (&fusbh200->lock, flags);
- for (i = 0; i < num_itds; i++) {
-
- /*
- * Use iTDs from the free list, but not iTDs that may
- * still be in use by the hardware.
- */
- if (likely(!list_empty(&stream->free_list))) {
- itd = list_first_entry(&stream->free_list,
- struct fusbh200_itd, itd_list);
- if (itd->frame == fusbh200->now_frame)
- goto alloc_itd;
- list_del (&itd->itd_list);
- itd_dma = itd->itd_dma;
- } else {
- alloc_itd:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- itd = dma_pool_alloc (fusbh200->itd_pool, mem_flags,
- &itd_dma);
- spin_lock_irqsave (&fusbh200->lock, flags);
- if (!itd) {
- iso_sched_free(stream, sched);
- spin_unlock_irqrestore(&fusbh200->lock, flags);
- return -ENOMEM;
- }
- }
-
- memset (itd, 0, sizeof *itd);
- itd->itd_dma = itd_dma;
- list_add (&itd->itd_list, &sched->td_list);
- }
- spin_unlock_irqrestore (&fusbh200->lock, flags);
-
- /* temporarily store schedule info in hcpriv */
- urb->hcpriv = sched;
- urb->error_count = 0;
- return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static inline int
-itd_slot_ok (
- struct fusbh200_hcd *fusbh200,
- u32 mod,
- u32 uframe,
- u8 usecs,
- u32 period
-)
-{
- uframe %= period;
- do {
- /* can't commit more than uframe_periodic_max usec */
- if (periodic_usecs (fusbh200, uframe >> 3, uframe & 0x7)
- > (fusbh200->uframe_periodic_max - usecs))
- return 0;
-
- /* we know urb->interval is 2^N uframes */
- uframe += period;
- } while (uframe < mod);
- return 1;
-}
-
-/*
- * This scheduler plans almost as far into the future as it has actual
- * periodic schedule slots. (Affected by TUNE_FLS, which defaults to
- * "as small as possible" to be cache-friendlier.) That limits the size
- * transfers you can stream reliably; avoid more than 64 msec per urb.
- * Also avoid queue depths of less than fusbh200's worst irq latency (affected
- * by the per-urb URB_NO_INTERRUPT hint, the log2_irq_thresh module parameter,
- * and other factors); or more than about 230 msec total (for portability,
- * given FUSBH200_TUNE_FLS and the slop). Or, write a smarter scheduler!
- */
-
-#define SCHEDULE_SLOP 80 /* microframes */
-
-static int
-iso_stream_schedule (
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- struct fusbh200_iso_stream *stream
-)
-{
- u32 now, next, start, period, span;
- int status;
- unsigned mod = fusbh200->periodic_size << 3;
- struct fusbh200_iso_sched *sched = urb->hcpriv;
-
- period = urb->interval;
- span = sched->span;
-
- if (span > mod - SCHEDULE_SLOP) {
- fusbh200_dbg (fusbh200, "iso request %p too long\n", urb);
- status = -EFBIG;
- goto fail;
- }
-
- now = fusbh200_read_frame_index(fusbh200) & (mod - 1);
-
- /* Typical case: reuse current schedule, stream is still active.
- * Hopefully there are no gaps from the host falling behind
- * (irq delays etc), but if there are we'll take the next
- * slot in the schedule, implicitly assuming URB_ISO_ASAP.
- */
- if (likely (!list_empty (&stream->td_list))) {
- u32 excess;
-
- /* For high speed devices, allow scheduling within the
- * isochronous scheduling threshold. For full speed devices
- * and Intel PCI-based controllers, don't (work around for
- * Intel ICH9 bug).
- */
- if (!stream->highspeed && fusbh200->fs_i_thresh)
- next = now + fusbh200->i_thresh;
- else
- next = now;
-
- /* Fell behind (by up to twice the slop amount)?
- * We decide based on the time of the last currently-scheduled
- * slot, not the time of the next available slot.
- */
- excess = (stream->next_uframe - period - next) & (mod - 1);
- if (excess >= mod - 2 * SCHEDULE_SLOP)
- start = next + excess - mod + period *
- DIV_ROUND_UP(mod - excess, period);
- else
- start = next + excess + period;
- if (start - now >= mod) {
- fusbh200_dbg(fusbh200, "request %p would overflow (%d+%d >= %d)\n",
- urb, start - now - period, period,
- mod);
- status = -EFBIG;
- goto fail;
- }
- }
-
- /* need to schedule; when's the next (u)frame we could start?
- * this is bigger than fusbh200->i_thresh allows; scheduling itself
- * isn't free, the slop should handle reasonably slow cpus. it
- * can also help high bandwidth if the dma and irq loads don't
- * jump until after the queue is primed.
- */
- else {
- int done = 0;
- start = SCHEDULE_SLOP + (now & ~0x07);
-
- /* NOTE: assumes URB_ISO_ASAP, to limit complexity/bugs */
-
- /* find a uframe slot with enough bandwidth.
- * Early uframes are more precious because full-speed
- * iso IN transfers can't use late uframes,
- * and therefore they should be allocated last.
- */
- next = start;
- start += period;
- do {
- start--;
- /* check schedule: enough space? */
- if (itd_slot_ok(fusbh200, mod, start,
- stream->usecs, period))
- done = 1;
- } while (start > next && !done);
-
- /* no room in the schedule */
- if (!done) {
- fusbh200_dbg(fusbh200, "iso resched full %p (now %d max %d)\n",
- urb, now, now + mod);
- status = -ENOSPC;
- goto fail;
- }
- }
-
- /* Tried to schedule too far into the future? */
- if (unlikely(start - now + span - period
- >= mod - 2 * SCHEDULE_SLOP)) {
- fusbh200_dbg(fusbh200, "request %p would overflow (%d+%d >= %d)\n",
- urb, start - now, span - period,
- mod - 2 * SCHEDULE_SLOP);
- status = -EFBIG;
- goto fail;
- }
-
- stream->next_uframe = start & (mod - 1);
-
- /* report high speed start in uframes; full speed, in frames */
- urb->start_frame = stream->next_uframe;
- if (!stream->highspeed)
- urb->start_frame >>= 3;
-
- /* Make sure scan_isoc() sees these */
- if (fusbh200->isoc_count == 0)
- fusbh200->next_frame = now >> 3;
- return 0;
-
- fail:
- iso_sched_free(stream, sched);
- urb->hcpriv = NULL;
- return status;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static inline void
-itd_init(struct fusbh200_hcd *fusbh200, struct fusbh200_iso_stream *stream,
- struct fusbh200_itd *itd)
-{
- int i;
-
- /* it's been recently zeroed */
- itd->hw_next = FUSBH200_LIST_END(fusbh200);
- itd->hw_bufp [0] = stream->buf0;
- itd->hw_bufp [1] = stream->buf1;
- itd->hw_bufp [2] = stream->buf2;
-
- for (i = 0; i < 8; i++)
- itd->index[i] = -1;
-
- /* All other fields are filled when scheduling */
-}
-
-static inline void
-itd_patch(
- struct fusbh200_hcd *fusbh200,
- struct fusbh200_itd *itd,
- struct fusbh200_iso_sched *iso_sched,
- unsigned index,
- u16 uframe
-)
-{
- struct fusbh200_iso_packet *uf = &iso_sched->packet [index];
- unsigned pg = itd->pg;
-
- // BUG_ON (pg == 6 && uf->cross);
-
- uframe &= 0x07;
- itd->index [uframe] = index;
-
- itd->hw_transaction[uframe] = uf->transaction;
- itd->hw_transaction[uframe] |= cpu_to_hc32(fusbh200, pg << 12);
- itd->hw_bufp[pg] |= cpu_to_hc32(fusbh200, uf->bufp & ~(u32)0);
- itd->hw_bufp_hi[pg] |= cpu_to_hc32(fusbh200, (u32)(uf->bufp >> 32));
-
- /* iso_frame_desc[].offset must be strictly increasing */
- if (unlikely (uf->cross)) {
- u64 bufp = uf->bufp + 4096;
-
- itd->pg = ++pg;
- itd->hw_bufp[pg] |= cpu_to_hc32(fusbh200, bufp & ~(u32)0);
- itd->hw_bufp_hi[pg] |= cpu_to_hc32(fusbh200, (u32)(bufp >> 32));
- }
-}
-
-static inline void
-itd_link (struct fusbh200_hcd *fusbh200, unsigned frame, struct fusbh200_itd *itd)
-{
- union fusbh200_shadow *prev = &fusbh200->pshadow[frame];
- __hc32 *hw_p = &fusbh200->periodic[frame];
- union fusbh200_shadow here = *prev;
- __hc32 type = 0;
-
- /* skip any iso nodes which might belong to previous microframes */
- while (here.ptr) {
- type = Q_NEXT_TYPE(fusbh200, *hw_p);
- if (type == cpu_to_hc32(fusbh200, Q_TYPE_QH))
- break;
- prev = periodic_next_shadow(fusbh200, prev, type);
- hw_p = shadow_next_periodic(fusbh200, &here, type);
- here = *prev;
- }
-
- itd->itd_next = here;
- itd->hw_next = *hw_p;
- prev->itd = itd;
- itd->frame = frame;
- wmb ();
- *hw_p = cpu_to_hc32(fusbh200, itd->itd_dma | Q_TYPE_ITD);
-}
-
-/* fit urb's itds into the selected schedule slot; activate as needed */
-static void itd_link_urb(
- struct fusbh200_hcd *fusbh200,
- struct urb *urb,
- unsigned mod,
- struct fusbh200_iso_stream *stream
-)
-{
- int packet;
- unsigned next_uframe, uframe, frame;
- struct fusbh200_iso_sched *iso_sched = urb->hcpriv;
- struct fusbh200_itd *itd;
-
- next_uframe = stream->next_uframe & (mod - 1);
-
- if (unlikely (list_empty(&stream->td_list))) {
- fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated
- += stream->bandwidth;
- fusbh200_dbg(fusbh200,
- "schedule devp %s ep%d%s-iso period %d start %d.%d\n",
- urb->dev->devpath, stream->bEndpointAddress & 0x0f,
- (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out",
- urb->interval,
- next_uframe >> 3, next_uframe & 0x7);
- }
-
- /* fill iTDs uframe by uframe */
- for (packet = 0, itd = NULL; packet < urb->number_of_packets; ) {
- if (itd == NULL) {
- /* ASSERT: we have all necessary itds */
- // BUG_ON (list_empty (&iso_sched->td_list));
-
- /* ASSERT: no itds for this endpoint in this uframe */
-
- itd = list_entry (iso_sched->td_list.next,
- struct fusbh200_itd, itd_list);
- list_move_tail (&itd->itd_list, &stream->td_list);
- itd->stream = stream;
- itd->urb = urb;
- itd_init (fusbh200, stream, itd);
- }
-
- uframe = next_uframe & 0x07;
- frame = next_uframe >> 3;
-
- itd_patch(fusbh200, itd, iso_sched, packet, uframe);
-
- next_uframe += stream->interval;
- next_uframe &= mod - 1;
- packet++;
-
- /* link completed itds into the schedule */
- if (((next_uframe >> 3) != frame)
- || packet == urb->number_of_packets) {
- itd_link(fusbh200, frame & (fusbh200->periodic_size - 1), itd);
- itd = NULL;
- }
- }
- stream->next_uframe = next_uframe;
-
- /* don't need that schedule data any more */
- iso_sched_free (stream, iso_sched);
- urb->hcpriv = NULL;
-
- ++fusbh200->isoc_count;
- enable_periodic(fusbh200);
-}
-
-#define ISO_ERRS (FUSBH200_ISOC_BUF_ERR | FUSBH200_ISOC_BABBLE | FUSBH200_ISOC_XACTERR)
-
-/* Process and recycle a completed ITD. Return true iff its urb completed,
- * and hence its completion callback probably added things to the hardware
- * schedule.
- *
- * Note that we carefully avoid recycling this descriptor until after any
- * completion callback runs, so that it won't be reused quickly. That is,
- * assuming (a) no more than two urbs per frame on this endpoint, and also
- * (b) only this endpoint's completions submit URBs. It seems some silicon
- * corrupts things if you reuse completed descriptors very quickly...
- */
-static bool itd_complete(struct fusbh200_hcd *fusbh200, struct fusbh200_itd *itd)
-{
- struct urb *urb = itd->urb;
- struct usb_iso_packet_descriptor *desc;
- u32 t;
- unsigned uframe;
- int urb_index = -1;
- struct fusbh200_iso_stream *stream = itd->stream;
- struct usb_device *dev;
- bool retval = false;
-
- /* for each uframe with a packet */
- for (uframe = 0; uframe < 8; uframe++) {
- if (likely (itd->index[uframe] == -1))
- continue;
- urb_index = itd->index[uframe];
- desc = &urb->iso_frame_desc [urb_index];
-
- t = hc32_to_cpup(fusbh200, &itd->hw_transaction [uframe]);
- itd->hw_transaction [uframe] = 0;
-
- /* report transfer status */
- if (unlikely (t & ISO_ERRS)) {
- urb->error_count++;
- if (t & FUSBH200_ISOC_BUF_ERR)
- desc->status = usb_pipein (urb->pipe)
- ? -ENOSR /* hc couldn't read */
- : -ECOMM; /* hc couldn't write */
- else if (t & FUSBH200_ISOC_BABBLE)
- desc->status = -EOVERFLOW;
- else /* (t & FUSBH200_ISOC_XACTERR) */
- desc->status = -EPROTO;
-
- /* HC need not update length with this error */
- if (!(t & FUSBH200_ISOC_BABBLE)) {
- desc->actual_length = fusbh200_itdlen(urb, desc, t);
- urb->actual_length += desc->actual_length;
- }
- } else if (likely ((t & FUSBH200_ISOC_ACTIVE) == 0)) {
- desc->status = 0;
- desc->actual_length = fusbh200_itdlen(urb, desc, t);
- urb->actual_length += desc->actual_length;
- } else {
- /* URB was too late */
- desc->status = -EXDEV;
- }
- }
-
- /* handle completion now? */
- if (likely ((urb_index + 1) != urb->number_of_packets))
- goto done;
-
- /* ASSERT: it's really the last itd for this urb
- list_for_each_entry (itd, &stream->td_list, itd_list)
- BUG_ON (itd->urb == urb);
- */
-
- /* give urb back to the driver; completion often (re)submits */
- dev = urb->dev;
- fusbh200_urb_done(fusbh200, urb, 0);
- retval = true;
- urb = NULL;
-
- --fusbh200->isoc_count;
- disable_periodic(fusbh200);
-
- if (unlikely(list_is_singular(&stream->td_list))) {
- fusbh200_to_hcd(fusbh200)->self.bandwidth_allocated
- -= stream->bandwidth;
- fusbh200_dbg(fusbh200,
- "deschedule devp %s ep%d%s-iso\n",
- dev->devpath, stream->bEndpointAddress & 0x0f,
- (stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");
- }
-
-done:
- itd->urb = NULL;
-
- /* Add to the end of the free list for later reuse */
- list_move_tail(&itd->itd_list, &stream->free_list);
-
- /* Recycle the iTDs when the pipeline is empty (ep no longer in use) */
- if (list_empty(&stream->td_list)) {
- list_splice_tail_init(&stream->free_list,
- &fusbh200->cached_itd_list);
- start_free_itds(fusbh200);
- }
-
- return retval;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int itd_submit (struct fusbh200_hcd *fusbh200, struct urb *urb,
- gfp_t mem_flags)
-{
- int status = -EINVAL;
- unsigned long flags;
- struct fusbh200_iso_stream *stream;
-
- /* Get iso_stream head */
- stream = iso_stream_find (fusbh200, urb);
- if (unlikely (stream == NULL)) {
- fusbh200_dbg (fusbh200, "can't get iso stream\n");
- return -ENOMEM;
- }
- if (unlikely (urb->interval != stream->interval &&
- fusbh200_port_speed(fusbh200, 0) == USB_PORT_STAT_HIGH_SPEED)) {
- fusbh200_dbg (fusbh200, "can't change iso interval %d --> %d\n",
- stream->interval, urb->interval);
- goto done;
- }
-
-#ifdef FUSBH200_URB_TRACE
- fusbh200_dbg (fusbh200,
- "%s %s urb %p ep%d%s len %d, %d pkts %d uframes [%p]\n",
- __func__, urb->dev->devpath, urb,
- usb_pipeendpoint (urb->pipe),
- usb_pipein (urb->pipe) ? "in" : "out",
- urb->transfer_buffer_length,
- urb->number_of_packets, urb->interval,
- stream);
-#endif
-
- /* allocate ITDs w/o locking anything */
- status = itd_urb_transaction (stream, fusbh200, urb, mem_flags);
- if (unlikely (status < 0)) {
- fusbh200_dbg (fusbh200, "can't init itds\n");
- goto done;
- }
-
- /* schedule ... need to lock */
- spin_lock_irqsave (&fusbh200->lock, flags);
- if (unlikely(!HCD_HW_ACCESSIBLE(fusbh200_to_hcd(fusbh200)))) {
- status = -ESHUTDOWN;
- goto done_not_linked;
- }
- status = usb_hcd_link_urb_to_ep(fusbh200_to_hcd(fusbh200), urb);
- if (unlikely(status))
- goto done_not_linked;
- status = iso_stream_schedule(fusbh200, urb, stream);
- if (likely (status == 0))
- itd_link_urb (fusbh200, urb, fusbh200->periodic_size << 3, stream);
- else
- usb_hcd_unlink_urb_from_ep(fusbh200_to_hcd(fusbh200), urb);
- done_not_linked:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- done:
- return status;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void scan_isoc(struct fusbh200_hcd *fusbh200)
-{
- unsigned uf, now_frame, frame;
- unsigned fmask = fusbh200->periodic_size - 1;
- bool modified, live;
-
- /*
- * When running, scan from last scan point up to "now"
- * else clean up by scanning everything that's left.
- * Touches as few pages as possible: cache-friendly.
- */
- if (fusbh200->rh_state >= FUSBH200_RH_RUNNING) {
- uf = fusbh200_read_frame_index(fusbh200);
- now_frame = (uf >> 3) & fmask;
- live = true;
- } else {
- now_frame = (fusbh200->next_frame - 1) & fmask;
- live = false;
- }
- fusbh200->now_frame = now_frame;
-
- frame = fusbh200->next_frame;
- for (;;) {
- union fusbh200_shadow q, *q_p;
- __hc32 type, *hw_p;
-
-restart:
- /* scan each element in frame's queue for completions */
- q_p = &fusbh200->pshadow [frame];
- hw_p = &fusbh200->periodic [frame];
- q.ptr = q_p->ptr;
- type = Q_NEXT_TYPE(fusbh200, *hw_p);
- modified = false;
-
- while (q.ptr != NULL) {
- switch (hc32_to_cpu(fusbh200, type)) {
- case Q_TYPE_ITD:
- /* If this ITD is still active, leave it for
- * later processing ... check the next entry.
- * No need to check for activity unless the
- * frame is current.
- */
- if (frame == now_frame && live) {
- rmb();
- for (uf = 0; uf < 8; uf++) {
- if (q.itd->hw_transaction[uf] &
- ITD_ACTIVE(fusbh200))
- break;
- }
- if (uf < 8) {
- q_p = &q.itd->itd_next;
- hw_p = &q.itd->hw_next;
- type = Q_NEXT_TYPE(fusbh200,
- q.itd->hw_next);
- q = *q_p;
- break;
- }
- }
-
- /* Take finished ITDs out of the schedule
- * and process them: recycle, maybe report
- * URB completion. HC won't cache the
- * pointer for much longer, if at all.
- */
- *q_p = q.itd->itd_next;
- *hw_p = q.itd->hw_next;
- type = Q_NEXT_TYPE(fusbh200, q.itd->hw_next);
- wmb();
- modified = itd_complete (fusbh200, q.itd);
- q = *q_p;
- break;
- default:
- fusbh200_dbg(fusbh200, "corrupt type %d frame %d shadow %p\n",
- type, frame, q.ptr);
- // BUG ();
- /* FALL THROUGH */
- case Q_TYPE_QH:
- case Q_TYPE_FSTN:
- /* End of the iTDs and siTDs */
- q.ptr = NULL;
- break;
- }
-
- /* assume completion callbacks modify the queue */
- if (unlikely(modified && fusbh200->isoc_count > 0))
- goto restart;
- }
-
- /* Stop when we have reached the current frame */
- if (frame == now_frame)
- break;
- frame = (frame + 1) & fmask;
- }
- fusbh200->next_frame = now_frame;
-}
-/*-------------------------------------------------------------------------*/
-/*
- * Display / Set uframe_periodic_max
- */
-static ssize_t show_uframe_periodic_max(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct fusbh200_hcd *fusbh200;
- int n;
-
- fusbh200 = hcd_to_fusbh200(bus_to_hcd(dev_get_drvdata(dev)));
- n = scnprintf(buf, PAGE_SIZE, "%d\n", fusbh200->uframe_periodic_max);
- return n;
-}
-
-
-static ssize_t store_uframe_periodic_max(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct fusbh200_hcd *fusbh200;
- unsigned uframe_periodic_max;
- unsigned frame, uframe;
- unsigned short allocated_max;
- unsigned long flags;
- ssize_t ret;
-
- fusbh200 = hcd_to_fusbh200(bus_to_hcd(dev_get_drvdata(dev)));
- if (kstrtouint(buf, 0, &uframe_periodic_max) < 0)
- return -EINVAL;
-
- if (uframe_periodic_max < 100 || uframe_periodic_max >= 125) {
- fusbh200_info(fusbh200, "rejecting invalid request for "
- "uframe_periodic_max=%u\n", uframe_periodic_max);
- return -EINVAL;
- }
-
- ret = -EINVAL;
-
- /*
- * lock, so that our checking does not race with possible periodic
- * bandwidth allocation through submitting new urbs.
- */
- spin_lock_irqsave (&fusbh200->lock, flags);
-
- /*
- * for request to decrease max periodic bandwidth, we have to check
- * every microframe in the schedule to see whether the decrease is
- * possible.
- */
- if (uframe_periodic_max < fusbh200->uframe_periodic_max) {
- allocated_max = 0;
-
- for (frame = 0; frame < fusbh200->periodic_size; ++frame)
- for (uframe = 0; uframe < 7; ++uframe)
- allocated_max = max(allocated_max,
- periodic_usecs (fusbh200, frame, uframe));
-
- if (allocated_max > uframe_periodic_max) {
- fusbh200_info(fusbh200,
- "cannot decrease uframe_periodic_max because "
- "periodic bandwidth is already allocated "
- "(%u > %u)\n",
- allocated_max, uframe_periodic_max);
- goto out_unlock;
- }
- }
-
- /* increasing is always ok */
-
- fusbh200_info(fusbh200, "setting max periodic bandwidth to %u%% "
- "(== %u usec/uframe)\n",
- 100*uframe_periodic_max/125, uframe_periodic_max);
-
- if (uframe_periodic_max != 100)
- fusbh200_warn(fusbh200, "max periodic bandwidth set is non-standard\n");
-
- fusbh200->uframe_periodic_max = uframe_periodic_max;
- ret = count;
-
-out_unlock:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- return ret;
-}
-static DEVICE_ATTR(uframe_periodic_max, 0644, show_uframe_periodic_max, store_uframe_periodic_max);
-
-
-static inline int create_sysfs_files(struct fusbh200_hcd *fusbh200)
-{
- struct device *controller = fusbh200_to_hcd(fusbh200)->self.controller;
- int i = 0;
-
- if (i)
- goto out;
-
- i = device_create_file(controller, &dev_attr_uframe_periodic_max);
-out:
- return i;
-}
-
-static inline void remove_sysfs_files(struct fusbh200_hcd *fusbh200)
-{
- struct device *controller = fusbh200_to_hcd(fusbh200)->self.controller;
-
- device_remove_file(controller, &dev_attr_uframe_periodic_max);
-}
-/*-------------------------------------------------------------------------*/
-
-/* On some systems, leaving remote wakeup enabled prevents system shutdown.
- * The firmware seems to think that powering off is a wakeup event!
- * This routine turns off remote wakeup and everything else, on all ports.
- */
-static void fusbh200_turn_off_all_ports(struct fusbh200_hcd *fusbh200)
-{
- u32 __iomem *status_reg = &fusbh200->regs->port_status;
-
- fusbh200_writel(fusbh200, PORT_RWC_BITS, status_reg);
-}
-
-/*
- * Halt HC, turn off all ports, and let the BIOS use the companion controllers.
- * Must be called with interrupts enabled and the lock not held.
- */
-static void fusbh200_silence_controller(struct fusbh200_hcd *fusbh200)
-{
- fusbh200_halt(fusbh200);
-
- spin_lock_irq(&fusbh200->lock);
- fusbh200->rh_state = FUSBH200_RH_HALTED;
- fusbh200_turn_off_all_ports(fusbh200);
- spin_unlock_irq(&fusbh200->lock);
-}
-
-/* fusbh200_shutdown kick in for silicon on any bus (not just pci, etc).
- * This forcibly disables dma and IRQs, helping kexec and other cases
- * where the next system software may expect clean state.
- */
-static void fusbh200_shutdown(struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200(hcd);
-
- spin_lock_irq(&fusbh200->lock);
- fusbh200->shutdown = true;
- fusbh200->rh_state = FUSBH200_RH_STOPPING;
- fusbh200->enabled_hrtimer_events = 0;
- spin_unlock_irq(&fusbh200->lock);
-
- fusbh200_silence_controller(fusbh200);
-
- hrtimer_cancel(&fusbh200->hrtimer);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * fusbh200_work is called from some interrupts, timers, and so on.
- * it calls driver completion functions, after dropping fusbh200->lock.
- */
-static void fusbh200_work (struct fusbh200_hcd *fusbh200)
-{
- /* another CPU may drop fusbh200->lock during a schedule scan while
- * it reports urb completions. this flag guards against bogus
- * attempts at re-entrant schedule scanning.
- */
- if (fusbh200->scanning) {
- fusbh200->need_rescan = true;
- return;
- }
- fusbh200->scanning = true;
-
- rescan:
- fusbh200->need_rescan = false;
- if (fusbh200->async_count)
- scan_async(fusbh200);
- if (fusbh200->intr_count > 0)
- scan_intr(fusbh200);
- if (fusbh200->isoc_count > 0)
- scan_isoc(fusbh200);
- if (fusbh200->need_rescan)
- goto rescan;
- fusbh200->scanning = false;
-
- /* the IO watchdog guards against hardware or driver bugs that
- * misplace IRQs, and should let us run completely without IRQs.
- * such lossage has been observed on both VT6202 and VT8235.
- */
- turn_on_io_watchdog(fusbh200);
-}
-
-/*
- * Called when the fusbh200_hcd module is removed.
- */
-static void fusbh200_stop (struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
-
- fusbh200_dbg (fusbh200, "stop\n");
-
- /* no more interrupts ... */
-
- spin_lock_irq(&fusbh200->lock);
- fusbh200->enabled_hrtimer_events = 0;
- spin_unlock_irq(&fusbh200->lock);
-
- fusbh200_quiesce(fusbh200);
- fusbh200_silence_controller(fusbh200);
- fusbh200_reset (fusbh200);
-
- hrtimer_cancel(&fusbh200->hrtimer);
- remove_sysfs_files(fusbh200);
- remove_debug_files (fusbh200);
-
- /* root hub is shut down separately (first, when possible) */
- spin_lock_irq (&fusbh200->lock);
- end_free_itds(fusbh200);
- spin_unlock_irq (&fusbh200->lock);
- fusbh200_mem_cleanup (fusbh200);
-
- fusbh200_dbg(fusbh200, "irq normal %ld err %ld iaa %ld (lost %ld)\n",
- fusbh200->stats.normal, fusbh200->stats.error, fusbh200->stats.iaa,
- fusbh200->stats.lost_iaa);
- fusbh200_dbg (fusbh200, "complete %ld unlink %ld\n",
- fusbh200->stats.complete, fusbh200->stats.unlink);
-
- dbg_status (fusbh200, "fusbh200_stop completed",
- fusbh200_readl(fusbh200, &fusbh200->regs->status));
-}
-
-/* one-time init, only for memory state */
-static int hcd_fusbh200_init(struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200(hcd);
- u32 temp;
- int retval;
- u32 hcc_params;
- struct fusbh200_qh_hw *hw;
-
- spin_lock_init(&fusbh200->lock);
-
- /*
- * keep io watchdog by default, those good HCDs could turn off it later
- */
- fusbh200->need_io_watchdog = 1;
-
- hrtimer_init(&fusbh200->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
- fusbh200->hrtimer.function = fusbh200_hrtimer_func;
- fusbh200->next_hrtimer_event = FUSBH200_HRTIMER_NO_EVENT;
-
- hcc_params = fusbh200_readl(fusbh200, &fusbh200->caps->hcc_params);
-
- /*
- * by default set standard 80% (== 100 usec/uframe) max periodic
- * bandwidth as required by USB 2.0
- */
- fusbh200->uframe_periodic_max = 100;
-
- /*
- * hw default: 1K periodic list heads, one per frame.
- * periodic_size can shrink by USBCMD update if hcc_params allows.
- */
- fusbh200->periodic_size = DEFAULT_I_TDPS;
- INIT_LIST_HEAD(&fusbh200->intr_qh_list);
- INIT_LIST_HEAD(&fusbh200->cached_itd_list);
-
- if (HCC_PGM_FRAMELISTLEN(hcc_params)) {
- /* periodic schedule size can be smaller than default */
- switch (FUSBH200_TUNE_FLS) {
- case 0: fusbh200->periodic_size = 1024; break;
- case 1: fusbh200->periodic_size = 512; break;
- case 2: fusbh200->periodic_size = 256; break;
- default: BUG();
- }
- }
- if ((retval = fusbh200_mem_init(fusbh200, GFP_KERNEL)) < 0)
- return retval;
-
- /* controllers may cache some of the periodic schedule ... */
- fusbh200->i_thresh = 2;
-
- /*
- * dedicate a qh for the async ring head, since we couldn't unlink
- * a 'real' qh without stopping the async schedule [4.8]. use it
- * as the 'reclamation list head' too.
- * its dummy is used in hw_alt_next of many tds, to prevent the qh
- * from automatically advancing to the next td after short reads.
- */
- fusbh200->async->qh_next.qh = NULL;
- hw = fusbh200->async->hw;
- hw->hw_next = QH_NEXT(fusbh200, fusbh200->async->qh_dma);
- hw->hw_info1 = cpu_to_hc32(fusbh200, QH_HEAD);
- hw->hw_token = cpu_to_hc32(fusbh200, QTD_STS_HALT);
- hw->hw_qtd_next = FUSBH200_LIST_END(fusbh200);
- fusbh200->async->qh_state = QH_STATE_LINKED;
- hw->hw_alt_next = QTD_NEXT(fusbh200, fusbh200->async->dummy->qtd_dma);
-
- /* clear interrupt enables, set irq latency */
- if (log2_irq_thresh < 0 || log2_irq_thresh > 6)
- log2_irq_thresh = 0;
- temp = 1 << (16 + log2_irq_thresh);
- if (HCC_CANPARK(hcc_params)) {
- /* HW default park == 3, on hardware that supports it (like
- * NVidia and ALI silicon), maximizes throughput on the async
- * schedule by avoiding QH fetches between transfers.
- *
- * With fast usb storage devices and NForce2, "park" seems to
- * make problems: throughput reduction (!), data errors...
- */
- if (park) {
- park = min(park, (unsigned) 3);
- temp |= CMD_PARK;
- temp |= park << 8;
- }
- fusbh200_dbg(fusbh200, "park %d\n", park);
- }
- if (HCC_PGM_FRAMELISTLEN(hcc_params)) {
- /* periodic schedule size can be smaller than default */
- temp &= ~(3 << 2);
- temp |= (FUSBH200_TUNE_FLS << 2);
- }
- fusbh200->command = temp;
-
- /* Accept arbitrarily long scatter-gather lists */
- if (!(hcd->driver->flags & HCD_LOCAL_MEM))
- hcd->self.sg_tablesize = ~0;
- return 0;
-}
-
-/* start HC running; it's halted, hcd_fusbh200_init() has been run (once) */
-static int fusbh200_run (struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- u32 temp;
- u32 hcc_params;
-
- hcd->uses_new_polling = 1;
-
- /* EHCI spec section 4.1 */
-
- fusbh200_writel(fusbh200, fusbh200->periodic_dma, &fusbh200->regs->frame_list);
- fusbh200_writel(fusbh200, (u32)fusbh200->async->qh_dma, &fusbh200->regs->async_next);
-
- /*
- * hcc_params controls whether fusbh200->regs->segment must (!!!)
- * be used; it constrains QH/ITD/SITD and QTD locations.
- * pci_pool consistent memory always uses segment zero.
- * streaming mappings for I/O buffers, like pci_map_single(),
- * can return segments above 4GB, if the device allows.
- *
- * NOTE: the dma mask is visible through dma_supported(), so
- * drivers can pass this info along ... like NETIF_F_HIGHDMA,
- * Scsi_Host.highmem_io, and so forth. It's readonly to all
- * host side drivers though.
- */
- hcc_params = fusbh200_readl(fusbh200, &fusbh200->caps->hcc_params);
-
- // Philips, Intel, and maybe others need CMD_RUN before the
- // root hub will detect new devices (why?); NEC doesn't
- fusbh200->command &= ~(CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET);
- fusbh200->command |= CMD_RUN;
- fusbh200_writel(fusbh200, fusbh200->command, &fusbh200->regs->command);
- dbg_cmd (fusbh200, "init", fusbh200->command);
-
- /*
- * Start, enabling full USB 2.0 functionality ... usb 1.1 devices
- * are explicitly handed to companion controller(s), so no TT is
- * involved with the root hub. (Except where one is integrated,
- * and there's no companion controller unless maybe for USB OTG.)
- *
- * Turning on the CF flag will transfer ownership of all ports
- * from the companions to the EHCI controller. If any of the
- * companions are in the middle of a port reset at the time, it
- * could cause trouble. Write-locking ehci_cf_port_reset_rwsem
- * guarantees that no resets are in progress. After we set CF,
- * a short delay lets the hardware catch up; new resets shouldn't
- * be started before the port switching actions could complete.
- */
- down_write(&ehci_cf_port_reset_rwsem);
- fusbh200->rh_state = FUSBH200_RH_RUNNING;
- fusbh200_readl(fusbh200, &fusbh200->regs->command); /* unblock posted writes */
- msleep(5);
- up_write(&ehci_cf_port_reset_rwsem);
- fusbh200->last_periodic_enable = ktime_get_real();
-
- temp = HC_VERSION(fusbh200, fusbh200_readl(fusbh200, &fusbh200->caps->hc_capbase));
- fusbh200_info (fusbh200,
- "USB %x.%x started, EHCI %x.%02x\n",
- ((fusbh200->sbrn & 0xf0)>>4), (fusbh200->sbrn & 0x0f),
- temp >> 8, temp & 0xff);
-
- fusbh200_writel(fusbh200, INTR_MASK,
- &fusbh200->regs->intr_enable); /* Turn On Interrupts */
-
- /* GRR this is run-once init(), being done every time the HC starts.
- * So long as they're part of class devices, we can't do it init()
- * since the class device isn't created that early.
- */
- create_debug_files(fusbh200);
- create_sysfs_files(fusbh200);
-
- return 0;
-}
-
-static int fusbh200_setup(struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200(hcd);
- int retval;
-
- fusbh200->regs = (void __iomem *)fusbh200->caps +
- HC_LENGTH(fusbh200, fusbh200_readl(fusbh200, &fusbh200->caps->hc_capbase));
- dbg_hcs_params(fusbh200, "reset");
- dbg_hcc_params(fusbh200, "reset");
-
- /* cache this readonly data; minimize chip reads */
- fusbh200->hcs_params = fusbh200_readl(fusbh200, &fusbh200->caps->hcs_params);
-
- fusbh200->sbrn = HCD_USB2;
-
- /* data structure init */
- retval = hcd_fusbh200_init(hcd);
- if (retval)
- return retval;
-
- retval = fusbh200_halt(fusbh200);
- if (retval)
- return retval;
-
- fusbh200_reset(fusbh200);
-
- return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static irqreturn_t fusbh200_irq (struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- u32 status, masked_status, pcd_status = 0, cmd;
- int bh;
-
- spin_lock (&fusbh200->lock);
-
- status = fusbh200_readl(fusbh200, &fusbh200->regs->status);
-
- /* e.g. cardbus physical eject */
- if (status == ~(u32) 0) {
- fusbh200_dbg (fusbh200, "device removed\n");
- goto dead;
- }
-
- /*
- * We don't use STS_FLR, but some controllers don't like it to
- * remain on, so mask it out along with the other status bits.
- */
- masked_status = status & (INTR_MASK | STS_FLR);
-
- /* Shared IRQ? */
- if (!masked_status || unlikely(fusbh200->rh_state == FUSBH200_RH_HALTED)) {
- spin_unlock(&fusbh200->lock);
- return IRQ_NONE;
- }
-
- /* clear (just) interrupts */
- fusbh200_writel(fusbh200, masked_status, &fusbh200->regs->status);
- cmd = fusbh200_readl(fusbh200, &fusbh200->regs->command);
- bh = 0;
-
- /* normal [4.15.1.2] or error [4.15.1.1] completion */
- if (likely ((status & (STS_INT|STS_ERR)) != 0)) {
- if (likely ((status & STS_ERR) == 0))
- COUNT (fusbh200->stats.normal);
- else
- COUNT (fusbh200->stats.error);
- bh = 1;
- }
-
- /* complete the unlinking of some qh [4.15.2.3] */
- if (status & STS_IAA) {
-
- /* Turn off the IAA watchdog */
- fusbh200->enabled_hrtimer_events &= ~BIT(FUSBH200_HRTIMER_IAA_WATCHDOG);
-
- /*
- * Mild optimization: Allow another IAAD to reset the
- * hrtimer, if one occurs before the next expiration.
- * In theory we could always cancel the hrtimer, but
- * tests show that about half the time it will be reset
- * for some other event anyway.
- */
- if (fusbh200->next_hrtimer_event == FUSBH200_HRTIMER_IAA_WATCHDOG)
- ++fusbh200->next_hrtimer_event;
-
- /* guard against (alleged) silicon errata */
- if (cmd & CMD_IAAD)
- fusbh200_dbg(fusbh200, "IAA with IAAD still set?\n");
- if (fusbh200->async_iaa) {
- COUNT(fusbh200->stats.iaa);
- end_unlink_async(fusbh200);
- } else
- fusbh200_dbg(fusbh200, "IAA with nothing unlinked?\n");
- }
-
- /* remote wakeup [4.3.1] */
- if (status & STS_PCD) {
- int pstatus;
- u32 __iomem *status_reg = &fusbh200->regs->port_status;
-
- /* kick root hub later */
- pcd_status = status;
-
- /* resume root hub? */
- if (fusbh200->rh_state == FUSBH200_RH_SUSPENDED)
- usb_hcd_resume_root_hub(hcd);
-
- pstatus = fusbh200_readl(fusbh200, status_reg);
-
- if (test_bit(0, &fusbh200->suspended_ports) &&
- ((pstatus & PORT_RESUME) ||
- !(pstatus & PORT_SUSPEND)) &&
- (pstatus & PORT_PE) &&
- fusbh200->reset_done[0] == 0) {
-
- /* start 20 msec resume signaling from this port,
- * and make hub_wq collect PORT_STAT_C_SUSPEND to
- * stop that signaling. Use 5 ms extra for safety,
- * like usb_port_resume() does.
- */
- fusbh200->reset_done[0] = jiffies + msecs_to_jiffies(25);
- set_bit(0, &fusbh200->resuming_ports);
- fusbh200_dbg (fusbh200, "port 1 remote wakeup\n");
- mod_timer(&hcd->rh_timer, fusbh200->reset_done[0]);
- }
- }
-
- /* PCI errors [4.15.2.4] */
- if (unlikely ((status & STS_FATAL) != 0)) {
- fusbh200_err(fusbh200, "fatal error\n");
- dbg_cmd(fusbh200, "fatal", cmd);
- dbg_status(fusbh200, "fatal", status);
-dead:
- usb_hc_died(hcd);
-
- /* Don't let the controller do anything more */
- fusbh200->shutdown = true;
- fusbh200->rh_state = FUSBH200_RH_STOPPING;
- fusbh200->command &= ~(CMD_RUN | CMD_ASE | CMD_PSE);
- fusbh200_writel(fusbh200, fusbh200->command, &fusbh200->regs->command);
- fusbh200_writel(fusbh200, 0, &fusbh200->regs->intr_enable);
- fusbh200_handle_controller_death(fusbh200);
-
- /* Handle completions when the controller stops */
- bh = 0;
- }
-
- if (bh)
- fusbh200_work (fusbh200);
- spin_unlock (&fusbh200->lock);
- if (pcd_status)
- usb_hcd_poll_rh_status(hcd);
- return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * non-error returns are a promise to giveback() the urb later
- * we drop ownership so next owner (or urb unlink) can get it
- *
- * urb + dev is in hcd.self.controller.urb_list
- * we're queueing TDs onto software and hardware lists
- *
- * hcd-specific init for hcpriv hasn't been done yet
- *
- * NOTE: control, bulk, and interrupt share the same code to append TDs
- * to a (possibly active) QH, and the same QH scanning code.
- */
-static int fusbh200_urb_enqueue (
- struct usb_hcd *hcd,
- struct urb *urb,
- gfp_t mem_flags
-) {
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- struct list_head qtd_list;
-
- INIT_LIST_HEAD (&qtd_list);
-
- switch (usb_pipetype (urb->pipe)) {
- case PIPE_CONTROL:
- /* qh_completions() code doesn't handle all the fault cases
- * in multi-TD control transfers. Even 1KB is rare anyway.
- */
- if (urb->transfer_buffer_length > (16 * 1024))
- return -EMSGSIZE;
- /* FALLTHROUGH */
- /* case PIPE_BULK: */
- default:
- if (!qh_urb_transaction (fusbh200, urb, &qtd_list, mem_flags))
- return -ENOMEM;
- return submit_async(fusbh200, urb, &qtd_list, mem_flags);
-
- case PIPE_INTERRUPT:
- if (!qh_urb_transaction (fusbh200, urb, &qtd_list, mem_flags))
- return -ENOMEM;
- return intr_submit(fusbh200, urb, &qtd_list, mem_flags);
-
- case PIPE_ISOCHRONOUS:
- return itd_submit (fusbh200, urb, mem_flags);
- }
-}
-
-/* remove from hardware lists
- * completions normally happen asynchronously
- */
-
-static int fusbh200_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- struct fusbh200_qh *qh;
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave (&fusbh200->lock, flags);
- rc = usb_hcd_check_unlink_urb(hcd, urb, status);
- if (rc)
- goto done;
-
- switch (usb_pipetype (urb->pipe)) {
- // case PIPE_CONTROL:
- // case PIPE_BULK:
- default:
- qh = (struct fusbh200_qh *) urb->hcpriv;
- if (!qh)
- break;
- switch (qh->qh_state) {
- case QH_STATE_LINKED:
- case QH_STATE_COMPLETING:
- start_unlink_async(fusbh200, qh);
- break;
- case QH_STATE_UNLINK:
- case QH_STATE_UNLINK_WAIT:
- /* already started */
- break;
- case QH_STATE_IDLE:
- /* QH might be waiting for a Clear-TT-Buffer */
- qh_completions(fusbh200, qh);
- break;
- }
- break;
-
- case PIPE_INTERRUPT:
- qh = (struct fusbh200_qh *) urb->hcpriv;
- if (!qh)
- break;
- switch (qh->qh_state) {
- case QH_STATE_LINKED:
- case QH_STATE_COMPLETING:
- start_unlink_intr(fusbh200, qh);
- break;
- case QH_STATE_IDLE:
- qh_completions (fusbh200, qh);
- break;
- default:
- fusbh200_dbg (fusbh200, "bogus qh %p state %d\n",
- qh, qh->qh_state);
- goto done;
- }
- break;
-
- case PIPE_ISOCHRONOUS:
- // itd...
-
- // wait till next completion, do it then.
- // completion irqs can wait up to 1024 msec,
- break;
- }
-done:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- return rc;
-}
-
-/*-------------------------------------------------------------------------*/
-
-// bulk qh holds the data toggle
-
-static void
-fusbh200_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- unsigned long flags;
- struct fusbh200_qh *qh, *tmp;
-
- /* ASSERT: any requests/urbs are being unlinked */
- /* ASSERT: nobody can be submitting urbs for this any more */
-
-rescan:
- spin_lock_irqsave (&fusbh200->lock, flags);
- qh = ep->hcpriv;
- if (!qh)
- goto done;
-
- /* endpoints can be iso streams. for now, we don't
- * accelerate iso completions ... so spin a while.
- */
- if (qh->hw == NULL) {
- struct fusbh200_iso_stream *stream = ep->hcpriv;
-
- if (!list_empty(&stream->td_list))
- goto idle_timeout;
-
- /* BUG_ON(!list_empty(&stream->free_list)); */
- kfree(stream);
- goto done;
- }
-
- if (fusbh200->rh_state < FUSBH200_RH_RUNNING)
- qh->qh_state = QH_STATE_IDLE;
- switch (qh->qh_state) {
- case QH_STATE_LINKED:
- case QH_STATE_COMPLETING:
- for (tmp = fusbh200->async->qh_next.qh;
- tmp && tmp != qh;
- tmp = tmp->qh_next.qh)
- continue;
- /* periodic qh self-unlinks on empty, and a COMPLETING qh
- * may already be unlinked.
- */
- if (tmp)
- start_unlink_async(fusbh200, qh);
- /* FALL THROUGH */
- case QH_STATE_UNLINK: /* wait for hw to finish? */
- case QH_STATE_UNLINK_WAIT:
-idle_timeout:
- spin_unlock_irqrestore (&fusbh200->lock, flags);
- schedule_timeout_uninterruptible(1);
- goto rescan;
- case QH_STATE_IDLE: /* fully unlinked */
- if (qh->clearing_tt)
- goto idle_timeout;
- if (list_empty (&qh->qtd_list)) {
- qh_destroy(fusbh200, qh);
- break;
- }
- /* else FALL THROUGH */
- default:
- /* caller was supposed to have unlinked any requests;
- * that's not our job. just leak this memory.
- */
- fusbh200_err (fusbh200, "qh %p (#%02x) state %d%s\n",
- qh, ep->desc.bEndpointAddress, qh->qh_state,
- list_empty (&qh->qtd_list) ? "" : "(has tds)");
- break;
- }
- done:
- ep->hcpriv = NULL;
- spin_unlock_irqrestore (&fusbh200->lock, flags);
-}
-
-static void
-fusbh200_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200(hcd);
- struct fusbh200_qh *qh;
- int eptype = usb_endpoint_type(&ep->desc);
- int epnum = usb_endpoint_num(&ep->desc);
- int is_out = usb_endpoint_dir_out(&ep->desc);
- unsigned long flags;
-
- if (eptype != USB_ENDPOINT_XFER_BULK && eptype != USB_ENDPOINT_XFER_INT)
- return;
-
- spin_lock_irqsave(&fusbh200->lock, flags);
- qh = ep->hcpriv;
-
- /* For Bulk and Interrupt endpoints we maintain the toggle state
- * in the hardware; the toggle bits in udev aren't used at all.
- * When an endpoint is reset by usb_clear_halt() we must reset
- * the toggle bit in the QH.
- */
- if (qh) {
- usb_settoggle(qh->dev, epnum, is_out, 0);
- if (!list_empty(&qh->qtd_list)) {
- WARN_ONCE(1, "clear_halt for a busy endpoint\n");
- } else if (qh->qh_state == QH_STATE_LINKED ||
- qh->qh_state == QH_STATE_COMPLETING) {
-
- /* The toggle value in the QH can't be updated
- * while the QH is active. Unlink it now;
- * re-linking will call qh_refresh().
- */
- if (eptype == USB_ENDPOINT_XFER_BULK)
- start_unlink_async(fusbh200, qh);
- else
- start_unlink_intr(fusbh200, qh);
- }
- }
- spin_unlock_irqrestore(&fusbh200->lock, flags);
-}
-
-static int fusbh200_get_frame (struct usb_hcd *hcd)
-{
- struct fusbh200_hcd *fusbh200 = hcd_to_fusbh200 (hcd);
- return (fusbh200_read_frame_index(fusbh200) >> 3) % fusbh200->periodic_size;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * The EHCI in ChipIdea HDRC cannot be a separate module or device,
- * because its registers (and irq) are shared between host/gadget/otg
- * functions and in order to facilitate role switching we cannot
- * give the fusbh200 driver exclusive access to those.
- */
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR (DRIVER_AUTHOR);
-MODULE_LICENSE ("GPL");
-
-static const struct hc_driver fusbh200_fusbh200_hc_driver = {
- .description = hcd_name,
- .product_desc = "Faraday USB2.0 Host Controller",
- .hcd_priv_size = sizeof(struct fusbh200_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = fusbh200_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- /*
- * basic lifecycle operations
- */
- .reset = hcd_fusbh200_init,
- .start = fusbh200_run,
- .stop = fusbh200_stop,
- .shutdown = fusbh200_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = fusbh200_urb_enqueue,
- .urb_dequeue = fusbh200_urb_dequeue,
- .endpoint_disable = fusbh200_endpoint_disable,
- .endpoint_reset = fusbh200_endpoint_reset,
-
- /*
- * scheduling support
- */
- .get_frame_number = fusbh200_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = fusbh200_hub_status_data,
- .hub_control = fusbh200_hub_control,
- .bus_suspend = fusbh200_bus_suspend,
- .bus_resume = fusbh200_bus_resume,
-
- .relinquish_port = fusbh200_relinquish_port,
- .port_handed_over = fusbh200_port_handed_over,
-
- .clear_tt_buffer_complete = fusbh200_clear_tt_buffer_complete,
-};
-
-static void fusbh200_init(struct fusbh200_hcd *fusbh200)
-{
- u32 reg;
-
- reg = fusbh200_readl(fusbh200, &fusbh200->regs->bmcsr);
- reg |= BMCSR_INT_POLARITY;
- reg &= ~BMCSR_VBUS_OFF;
- fusbh200_writel(fusbh200, reg, &fusbh200->regs->bmcsr);
-
- reg = fusbh200_readl(fusbh200, &fusbh200->regs->bmier);
- fusbh200_writel(fusbh200, reg | BMIER_OVC_EN | BMIER_VBUS_ERR_EN,
- &fusbh200->regs->bmier);
-}
-
-/**
- * fusbh200_hcd_probe - initialize faraday FUSBH200 HCDs
- *
- * Allocates basic resources for this USB host controller, and
- * then invokes the start() method for the HCD associated with it
- * through the hotplug entry's driver_data.
- */
-static int fusbh200_hcd_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct usb_hcd *hcd;
- struct resource *res;
- int irq;
- int retval = -ENODEV;
- struct fusbh200_hcd *fusbh200;
-
- if (usb_disabled())
- return -ENODEV;
-
- pdev->dev.power.power_state = PMSG_ON;
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res) {
- dev_err(dev,
- "Found HC with no IRQ. Check %s setup!\n",
- dev_name(dev));
- return -ENODEV;
- }
-
- irq = res->start;
-
- hcd = usb_create_hcd(&fusbh200_fusbh200_hc_driver, dev,
- dev_name(dev));
- if (!hcd) {
- dev_err(dev, "failed to create hcd with err %d\n", retval);
- retval = -ENOMEM;
- goto fail_create_hcd;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev,
- "Found HC with no register addr. Check %s setup!\n",
- dev_name(dev));
- retval = -ENODEV;
- goto fail_request_resource;
- }
-
- hcd->rsrc_start = res->start;
- hcd->rsrc_len = resource_size(res);
- hcd->has_tt = 1;
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
- fusbh200_fusbh200_hc_driver.description)) {
- dev_dbg(dev, "controller already in use\n");
- retval = -EBUSY;
- goto fail_request_resource;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_IO, 0);
- if (!res) {
- dev_err(dev,
- "Found HC with no register addr. Check %s setup!\n",
- dev_name(dev));
- retval = -ENODEV;
- goto fail_request_resource;
- }
-
- hcd->regs = ioremap_nocache(res->start, resource_size(res));
- if (hcd->regs == NULL) {
- dev_dbg(dev, "error mapping memory\n");
- retval = -EFAULT;
- goto fail_ioremap;
- }
-
- fusbh200 = hcd_to_fusbh200(hcd);
-
- fusbh200->caps = hcd->regs;
-
- retval = fusbh200_setup(hcd);
- if (retval)
- goto fail_add_hcd;
-
- fusbh200_init(fusbh200);
-
- retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
- if (retval) {
- dev_err(dev, "failed to add hcd with err %d\n", retval);
- goto fail_add_hcd;
- }
- device_wakeup_enable(hcd->self.controller);
-
- return retval;
-
-fail_add_hcd:
- iounmap(hcd->regs);
-fail_ioremap:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-fail_request_resource:
- usb_put_hcd(hcd);
-fail_create_hcd:
- dev_err(dev, "init %s fail, %d\n", dev_name(dev), retval);
- return retval;
-}
-
-/**
- * fusbh200_hcd_remove - shutdown processing for EHCI HCDs
- * @dev: USB Host Controller being removed
- *
- * Reverses the effect of fotg2xx_usb_hcd_probe(), first invoking
- * the HCD's stop() method. It is always called from a thread
- * context, normally "rmmod", "apmd", or something similar.
- */
-static int fusbh200_hcd_remove(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct usb_hcd *hcd = dev_get_drvdata(dev);
-
- if (!hcd)
- return 0;
-
- usb_remove_hcd(hcd);
- iounmap(hcd->regs);
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- usb_put_hcd(hcd);
-
- return 0;
-}
-
-static struct platform_driver fusbh200_hcd_fusbh200_driver = {
- .driver = {
- .name = "fusbh200",
- },
- .probe = fusbh200_hcd_probe,
- .remove = fusbh200_hcd_remove,
-};
-
-static int __init fusbh200_hcd_init(void)
-{
- int retval = 0;
-
- if (usb_disabled())
- return -ENODEV;
-
- printk(KERN_INFO "%s: " DRIVER_DESC "\n", hcd_name);
- set_bit(USB_EHCI_LOADED, &usb_hcds_loaded);
- if (test_bit(USB_UHCI_LOADED, &usb_hcds_loaded) ||
- test_bit(USB_OHCI_LOADED, &usb_hcds_loaded))
- printk(KERN_WARNING "Warning! fusbh200_hcd should always be loaded"
- " before uhci_hcd and ohci_hcd, not after\n");
-
- pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd\n",
- hcd_name,
- sizeof(struct fusbh200_qh), sizeof(struct fusbh200_qtd),
- sizeof(struct fusbh200_itd));
-
- fusbh200_debug_root = debugfs_create_dir("fusbh200", usb_debug_root);
- if (!fusbh200_debug_root) {
- retval = -ENOENT;
- goto err_debug;
- }
-
- retval = platform_driver_register(&fusbh200_hcd_fusbh200_driver);
- if (retval < 0)
- goto clean;
- return retval;
-
- platform_driver_unregister(&fusbh200_hcd_fusbh200_driver);
-clean:
- debugfs_remove(fusbh200_debug_root);
- fusbh200_debug_root = NULL;
-err_debug:
- clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded);
- return retval;
-}
-module_init(fusbh200_hcd_init);
-
-static void __exit fusbh200_hcd_cleanup(void)
-{
- platform_driver_unregister(&fusbh200_hcd_fusbh200_driver);
- debugfs_remove(fusbh200_debug_root);
- clear_bit(USB_EHCI_LOADED, &usb_hcds_loaded);
-}
-module_exit(fusbh200_hcd_cleanup);
diff --git a/kernel/drivers/usb/host/fusbh200.h b/kernel/drivers/usb/host/fusbh200.h
deleted file mode 100644
index d6e5b3d4a..000000000
--- a/kernel/drivers/usb/host/fusbh200.h
+++ /dev/null
@@ -1,675 +0,0 @@
-#ifndef __LINUX_FUSBH200_H
-#define __LINUX_FUSBH200_H
-
-#include <linux/usb/ehci-dbgp.h>
-
-/* definitions used for the EHCI driver */
-
-/*
- * __hc32 and __hc16 are "Host Controller" types, they may be equivalent to
- * __leXX (normally) or __beXX (given FUSBH200_BIG_ENDIAN_DESC), depending on
- * the host controller implementation.
- *
- * To facilitate the strongest possible byte-order checking from "sparse"
- * and so on, we use __leXX unless that's not practical.
- */
-#define __hc32 __le32
-#define __hc16 __le16
-
-/* statistics can be kept for tuning/monitoring */
-struct fusbh200_stats {
- /* irq usage */
- unsigned long normal;
- unsigned long error;
- unsigned long iaa;
- unsigned long lost_iaa;
-
- /* termination of urbs from core */
- unsigned long complete;
- unsigned long unlink;
-};
-
-/* fusbh200_hcd->lock guards shared data against other CPUs:
- * fusbh200_hcd: async, unlink, periodic (and shadow), ...
- * usb_host_endpoint: hcpriv
- * fusbh200_qh: qh_next, qtd_list
- * fusbh200_qtd: qtd_list
- *
- * Also, hold this lock when talking to HC registers or
- * when updating hw_* fields in shared qh/qtd/... structures.
- */
-
-#define FUSBH200_MAX_ROOT_PORTS 1 /* see HCS_N_PORTS */
-
-/*
- * fusbh200_rh_state values of FUSBH200_RH_RUNNING or above mean that the
- * controller may be doing DMA. Lower values mean there's no DMA.
- */
-enum fusbh200_rh_state {
- FUSBH200_RH_HALTED,
- FUSBH200_RH_SUSPENDED,
- FUSBH200_RH_RUNNING,
- FUSBH200_RH_STOPPING
-};
-
-/*
- * Timer events, ordered by increasing delay length.
- * Always update event_delays_ns[] and event_handlers[] (defined in
- * ehci-timer.c) in parallel with this list.
- */
-enum fusbh200_hrtimer_event {
- FUSBH200_HRTIMER_POLL_ASS, /* Poll for async schedule off */
- FUSBH200_HRTIMER_POLL_PSS, /* Poll for periodic schedule off */
- FUSBH200_HRTIMER_POLL_DEAD, /* Wait for dead controller to stop */
- FUSBH200_HRTIMER_UNLINK_INTR, /* Wait for interrupt QH unlink */
- FUSBH200_HRTIMER_FREE_ITDS, /* Wait for unused iTDs and siTDs */
- FUSBH200_HRTIMER_ASYNC_UNLINKS, /* Unlink empty async QHs */
- FUSBH200_HRTIMER_IAA_WATCHDOG, /* Handle lost IAA interrupts */
- FUSBH200_HRTIMER_DISABLE_PERIODIC, /* Wait to disable periodic sched */
- FUSBH200_HRTIMER_DISABLE_ASYNC, /* Wait to disable async sched */
- FUSBH200_HRTIMER_IO_WATCHDOG, /* Check for missing IRQs */
- FUSBH200_HRTIMER_NUM_EVENTS /* Must come last */
-};
-#define FUSBH200_HRTIMER_NO_EVENT 99
-
-struct fusbh200_hcd { /* one per controller */
- /* timing support */
- enum fusbh200_hrtimer_event next_hrtimer_event;
- unsigned enabled_hrtimer_events;
- ktime_t hr_timeouts[FUSBH200_HRTIMER_NUM_EVENTS];
- struct hrtimer hrtimer;
-
- int PSS_poll_count;
- int ASS_poll_count;
- int died_poll_count;
-
- /* glue to PCI and HCD framework */
- struct fusbh200_caps __iomem *caps;
- struct fusbh200_regs __iomem *regs;
- struct ehci_dbg_port __iomem *debug;
-
- __u32 hcs_params; /* cached register copy */
- spinlock_t lock;
- enum fusbh200_rh_state rh_state;
-
- /* general schedule support */
- bool scanning:1;
- bool need_rescan:1;
- bool intr_unlinking:1;
- bool async_unlinking:1;
- bool shutdown:1;
- struct fusbh200_qh *qh_scan_next;
-
- /* async schedule support */
- struct fusbh200_qh *async;
- struct fusbh200_qh *dummy; /* For AMD quirk use */
- struct fusbh200_qh *async_unlink;
- struct fusbh200_qh *async_unlink_last;
- struct fusbh200_qh *async_iaa;
- unsigned async_unlink_cycle;
- unsigned async_count; /* async activity count */
-
- /* periodic schedule support */
-#define DEFAULT_I_TDPS 1024 /* some HCs can do less */
- unsigned periodic_size;
- __hc32 *periodic; /* hw periodic table */
- dma_addr_t periodic_dma;
- struct list_head intr_qh_list;
- unsigned i_thresh; /* uframes HC might cache */
-
- union fusbh200_shadow *pshadow; /* mirror hw periodic table */
- struct fusbh200_qh *intr_unlink;
- struct fusbh200_qh *intr_unlink_last;
- unsigned intr_unlink_cycle;
- unsigned now_frame; /* frame from HC hardware */
- unsigned next_frame; /* scan periodic, start here */
- unsigned intr_count; /* intr activity count */
- unsigned isoc_count; /* isoc activity count */
- unsigned periodic_count; /* periodic activity count */
- unsigned uframe_periodic_max; /* max periodic time per uframe */
-
-
- /* list of itds completed while now_frame was still active */
- struct list_head cached_itd_list;
- struct fusbh200_itd *last_itd_to_free;
-
- /* per root hub port */
- unsigned long reset_done [FUSBH200_MAX_ROOT_PORTS];
-
- /* bit vectors (one bit per port) */
- unsigned long bus_suspended; /* which ports were
- already suspended at the start of a bus suspend */
- unsigned long companion_ports; /* which ports are
- dedicated to the companion controller */
- unsigned long owned_ports; /* which ports are
- owned by the companion during a bus suspend */
- unsigned long port_c_suspend; /* which ports have
- the change-suspend feature turned on */
- unsigned long suspended_ports; /* which ports are
- suspended */
- unsigned long resuming_ports; /* which ports have
- started to resume */
-
- /* per-HC memory pools (could be per-bus, but ...) */
- struct dma_pool *qh_pool; /* qh per active urb */
- struct dma_pool *qtd_pool; /* one or more per qh */
- struct dma_pool *itd_pool; /* itd per iso urb */
-
- unsigned random_frame;
- unsigned long next_statechange;
- ktime_t last_periodic_enable;
- u32 command;
-
- /* SILICON QUIRKS */
- unsigned need_io_watchdog:1;
- unsigned fs_i_thresh:1; /* Intel iso scheduling */
-
- u8 sbrn; /* packed release number */
-
- /* irq statistics */
- struct fusbh200_stats stats;
-# define COUNT(x) do { (x)++; } while (0)
-
- /* debug files */
- struct dentry *debug_dir;
-};
-
-/* convert between an HCD pointer and the corresponding FUSBH200_HCD */
-static inline struct fusbh200_hcd *hcd_to_fusbh200 (struct usb_hcd *hcd)
-{
- return (struct fusbh200_hcd *) (hcd->hcd_priv);
-}
-static inline struct usb_hcd *fusbh200_to_hcd (struct fusbh200_hcd *fusbh200)
-{
- return container_of ((void *) fusbh200, struct usb_hcd, hcd_priv);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */
-
-/* Section 2.2 Host Controller Capability Registers */
-struct fusbh200_caps {
- /* these fields are specified as 8 and 16 bit registers,
- * but some hosts can't perform 8 or 16 bit PCI accesses.
- * some hosts treat caplength and hciversion as parts of a 32-bit
- * register, others treat them as two separate registers, this
- * affects the memory map for big endian controllers.
- */
- u32 hc_capbase;
-#define HC_LENGTH(fusbh200, p) (0x00ff&((p) >> /* bits 7:0 / offset 00h */ \
- (fusbh200_big_endian_capbase(fusbh200) ? 24 : 0)))
-#define HC_VERSION(fusbh200, p) (0xffff&((p) >> /* bits 31:16 / offset 02h */ \
- (fusbh200_big_endian_capbase(fusbh200) ? 0 : 16)))
- u32 hcs_params; /* HCSPARAMS - offset 0x4 */
-#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */
-
- u32 hcc_params; /* HCCPARAMS - offset 0x8 */
-#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */
-#define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/
- u8 portroute[8]; /* nibbles for routing - offset 0xC */
-};
-
-
-/* Section 2.3 Host Controller Operational Registers */
-struct fusbh200_regs {
-
- /* USBCMD: offset 0x00 */
- u32 command;
-
-/* EHCI 1.1 addendum */
-/* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */
-#define CMD_PARK (1<<11) /* enable "park" on async qh */
-#define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */
-#define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */
-#define CMD_ASE (1<<5) /* async schedule enable */
-#define CMD_PSE (1<<4) /* periodic schedule enable */
-/* 3:2 is periodic frame list size */
-#define CMD_RESET (1<<1) /* reset HC not bus */
-#define CMD_RUN (1<<0) /* start/stop HC */
-
- /* USBSTS: offset 0x04 */
- u32 status;
-#define STS_ASS (1<<15) /* Async Schedule Status */
-#define STS_PSS (1<<14) /* Periodic Schedule Status */
-#define STS_RECL (1<<13) /* Reclamation */
-#define STS_HALT (1<<12) /* Not running (any reason) */
-/* some bits reserved */
- /* these STS_* flags are also intr_enable bits (USBINTR) */
-#define STS_IAA (1<<5) /* Interrupted on async advance */
-#define STS_FATAL (1<<4) /* such as some PCI access errors */
-#define STS_FLR (1<<3) /* frame list rolled over */
-#define STS_PCD (1<<2) /* port change detect */
-#define STS_ERR (1<<1) /* "error" completion (overflow, ...) */
-#define STS_INT (1<<0) /* "normal" completion (short, ...) */
-
- /* USBINTR: offset 0x08 */
- u32 intr_enable;
-
- /* FRINDEX: offset 0x0C */
- u32 frame_index; /* current microframe number */
- /* CTRLDSSEGMENT: offset 0x10 */
- u32 segment; /* address bits 63:32 if needed */
- /* PERIODICLISTBASE: offset 0x14 */
- u32 frame_list; /* points to periodic list */
- /* ASYNCLISTADDR: offset 0x18 */
- u32 async_next; /* address of next async queue head */
-
- u32 reserved1;
- /* PORTSC: offset 0x20 */
- u32 port_status;
-/* 31:23 reserved */
-#define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */
-#define PORT_RESET (1<<8) /* reset port */
-#define PORT_SUSPEND (1<<7) /* suspend port */
-#define PORT_RESUME (1<<6) /* resume it */
-#define PORT_PEC (1<<3) /* port enable change */
-#define PORT_PE (1<<2) /* port enable */
-#define PORT_CSC (1<<1) /* connect status change */
-#define PORT_CONNECT (1<<0) /* device connected */
-#define PORT_RWC_BITS (PORT_CSC | PORT_PEC)
-
- u32 reserved2[3];
-
- /* BMCSR: offset 0x30 */
- u32 bmcsr; /* Bus Moniter Control/Status Register */
-#define BMCSR_HOST_SPD_TYP (3<<9)
-#define BMCSR_VBUS_OFF (1<<4)
-#define BMCSR_INT_POLARITY (1<<3)
-
- /* BMISR: offset 0x34 */
- u32 bmisr; /* Bus Moniter Interrupt Status Register*/
-#define BMISR_OVC (1<<1)
-
- /* BMIER: offset 0x38 */
- u32 bmier; /* Bus Moniter Interrupt Enable Register */
-#define BMIER_OVC_EN (1<<1)
-#define BMIER_VBUS_ERR_EN (1<<0)
-};
-
-/*-------------------------------------------------------------------------*/
-
-#define QTD_NEXT(fusbh200, dma) cpu_to_hc32(fusbh200, (u32)dma)
-
-/*
- * EHCI Specification 0.95 Section 3.5
- * QTD: describe data transfer components (buffer, direction, ...)
- * See Fig 3-6 "Queue Element Transfer Descriptor Block Diagram".
- *
- * These are associated only with "QH" (Queue Head) structures,
- * used with control, bulk, and interrupt transfers.
- */
-struct fusbh200_qtd {
- /* first part defined by EHCI spec */
- __hc32 hw_next; /* see EHCI 3.5.1 */
- __hc32 hw_alt_next; /* see EHCI 3.5.2 */
- __hc32 hw_token; /* see EHCI 3.5.3 */
-#define QTD_TOGGLE (1 << 31) /* data toggle */
-#define QTD_LENGTH(tok) (((tok)>>16) & 0x7fff)
-#define QTD_IOC (1 << 15) /* interrupt on complete */
-#define QTD_CERR(tok) (((tok)>>10) & 0x3)
-#define QTD_PID(tok) (((tok)>>8) & 0x3)
-#define QTD_STS_ACTIVE (1 << 7) /* HC may execute this */
-#define QTD_STS_HALT (1 << 6) /* halted on error */
-#define QTD_STS_DBE (1 << 5) /* data buffer error (in HC) */
-#define QTD_STS_BABBLE (1 << 4) /* device was babbling (qtd halted) */
-#define QTD_STS_XACT (1 << 3) /* device gave illegal response */
-#define QTD_STS_MMF (1 << 2) /* incomplete split transaction */
-#define QTD_STS_STS (1 << 1) /* split transaction state */
-#define QTD_STS_PING (1 << 0) /* issue PING? */
-
-#define ACTIVE_BIT(fusbh200) cpu_to_hc32(fusbh200, QTD_STS_ACTIVE)
-#define HALT_BIT(fusbh200) cpu_to_hc32(fusbh200, QTD_STS_HALT)
-#define STATUS_BIT(fusbh200) cpu_to_hc32(fusbh200, QTD_STS_STS)
-
- __hc32 hw_buf [5]; /* see EHCI 3.5.4 */
- __hc32 hw_buf_hi [5]; /* Appendix B */
-
- /* the rest is HCD-private */
- dma_addr_t qtd_dma; /* qtd address */
- struct list_head qtd_list; /* sw qtd list */
- struct urb *urb; /* qtd's urb */
- size_t length; /* length of buffer */
-} __attribute__ ((aligned (32)));
-
-/* mask NakCnt+T in qh->hw_alt_next */
-#define QTD_MASK(fusbh200) cpu_to_hc32 (fusbh200, ~0x1f)
-
-#define IS_SHORT_READ(token) (QTD_LENGTH (token) != 0 && QTD_PID (token) == 1)
-
-/*-------------------------------------------------------------------------*/
-
-/* type tag from {qh,itd,fstn}->hw_next */
-#define Q_NEXT_TYPE(fusbh200,dma) ((dma) & cpu_to_hc32(fusbh200, 3 << 1))
-
-/*
- * Now the following defines are not converted using the
- * cpu_to_le32() macro anymore, since we have to support
- * "dynamic" switching between be and le support, so that the driver
- * can be used on one system with SoC EHCI controller using big-endian
- * descriptors as well as a normal little-endian PCI EHCI controller.
- */
-/* values for that type tag */
-#define Q_TYPE_ITD (0 << 1)
-#define Q_TYPE_QH (1 << 1)
-#define Q_TYPE_SITD (2 << 1)
-#define Q_TYPE_FSTN (3 << 1)
-
-/* next async queue entry, or pointer to interrupt/periodic QH */
-#define QH_NEXT(fusbh200,dma) (cpu_to_hc32(fusbh200, (((u32)dma)&~0x01f)|Q_TYPE_QH))
-
-/* for periodic/async schedules and qtd lists, mark end of list */
-#define FUSBH200_LIST_END(fusbh200) cpu_to_hc32(fusbh200, 1) /* "null pointer" to hw */
-
-/*
- * Entries in periodic shadow table are pointers to one of four kinds
- * of data structure. That's dictated by the hardware; a type tag is
- * encoded in the low bits of the hardware's periodic schedule. Use
- * Q_NEXT_TYPE to get the tag.
- *
- * For entries in the async schedule, the type tag always says "qh".
- */
-union fusbh200_shadow {
- struct fusbh200_qh *qh; /* Q_TYPE_QH */
- struct fusbh200_itd *itd; /* Q_TYPE_ITD */
- struct fusbh200_fstn *fstn; /* Q_TYPE_FSTN */
- __hc32 *hw_next; /* (all types) */
- void *ptr;
-};
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * EHCI Specification 0.95 Section 3.6
- * QH: describes control/bulk/interrupt endpoints
- * See Fig 3-7 "Queue Head Structure Layout".
- *
- * These appear in both the async and (for interrupt) periodic schedules.
- */
-
-/* first part defined by EHCI spec */
-struct fusbh200_qh_hw {
- __hc32 hw_next; /* see EHCI 3.6.1 */
- __hc32 hw_info1; /* see EHCI 3.6.2 */
-#define QH_CONTROL_EP (1 << 27) /* FS/LS control endpoint */
-#define QH_HEAD (1 << 15) /* Head of async reclamation list */
-#define QH_TOGGLE_CTL (1 << 14) /* Data toggle control */
-#define QH_HIGH_SPEED (2 << 12) /* Endpoint speed */
-#define QH_LOW_SPEED (1 << 12)
-#define QH_FULL_SPEED (0 << 12)
-#define QH_INACTIVATE (1 << 7) /* Inactivate on next transaction */
- __hc32 hw_info2; /* see EHCI 3.6.2 */
-#define QH_SMASK 0x000000ff
-#define QH_CMASK 0x0000ff00
-#define QH_HUBADDR 0x007f0000
-#define QH_HUBPORT 0x3f800000
-#define QH_MULT 0xc0000000
- __hc32 hw_current; /* qtd list - see EHCI 3.6.4 */
-
- /* qtd overlay (hardware parts of a struct fusbh200_qtd) */
- __hc32 hw_qtd_next;
- __hc32 hw_alt_next;
- __hc32 hw_token;
- __hc32 hw_buf [5];
- __hc32 hw_buf_hi [5];
-} __attribute__ ((aligned(32)));
-
-struct fusbh200_qh {
- struct fusbh200_qh_hw *hw; /* Must come first */
- /* the rest is HCD-private */
- dma_addr_t qh_dma; /* address of qh */
- union fusbh200_shadow qh_next; /* ptr to qh; or periodic */
- struct list_head qtd_list; /* sw qtd list */
- struct list_head intr_node; /* list of intr QHs */
- struct fusbh200_qtd *dummy;
- struct fusbh200_qh *unlink_next; /* next on unlink list */
-
- unsigned unlink_cycle;
-
- u8 needs_rescan; /* Dequeue during giveback */
- u8 qh_state;
-#define QH_STATE_LINKED 1 /* HC sees this */
-#define QH_STATE_UNLINK 2 /* HC may still see this */
-#define QH_STATE_IDLE 3 /* HC doesn't see this */
-#define QH_STATE_UNLINK_WAIT 4 /* LINKED and on unlink q */
-#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */
-
- u8 xacterrs; /* XactErr retry counter */
-#define QH_XACTERR_MAX 32 /* XactErr retry limit */
-
- /* periodic schedule info */
- u8 usecs; /* intr bandwidth */
- u8 gap_uf; /* uframes split/csplit gap */
- u8 c_usecs; /* ... split completion bw */
- u16 tt_usecs; /* tt downstream bandwidth */
- unsigned short period; /* polling interval */
- unsigned short start; /* where polling starts */
-#define NO_FRAME ((unsigned short)~0) /* pick new start */
-
- struct usb_device *dev; /* access to TT */
- unsigned is_out:1; /* bulk or intr OUT */
- unsigned clearing_tt:1; /* Clear-TT-Buf in progress */
-};
-
-/*-------------------------------------------------------------------------*/
-
-/* description of one iso transaction (up to 3 KB data if highspeed) */
-struct fusbh200_iso_packet {
- /* These will be copied to iTD when scheduling */
- u64 bufp; /* itd->hw_bufp{,_hi}[pg] |= */
- __hc32 transaction; /* itd->hw_transaction[i] |= */
- u8 cross; /* buf crosses pages */
- /* for full speed OUT splits */
- u32 buf1;
-};
-
-/* temporary schedule data for packets from iso urbs (both speeds)
- * each packet is one logical usb transaction to the device (not TT),
- * beginning at stream->next_uframe
- */
-struct fusbh200_iso_sched {
- struct list_head td_list;
- unsigned span;
- struct fusbh200_iso_packet packet [0];
-};
-
-/*
- * fusbh200_iso_stream - groups all (s)itds for this endpoint.
- * acts like a qh would, if EHCI had them for ISO.
- */
-struct fusbh200_iso_stream {
- /* first field matches fusbh200_hq, but is NULL */
- struct fusbh200_qh_hw *hw;
-
- u8 bEndpointAddress;
- u8 highspeed;
- struct list_head td_list; /* queued itds */
- struct list_head free_list; /* list of unused itds */
- struct usb_device *udev;
- struct usb_host_endpoint *ep;
-
- /* output of (re)scheduling */
- int next_uframe;
- __hc32 splits;
-
- /* the rest is derived from the endpoint descriptor,
- * trusting urb->interval == f(epdesc->bInterval) and
- * including the extra info for hw_bufp[0..2]
- */
- u8 usecs, c_usecs;
- u16 interval;
- u16 tt_usecs;
- u16 maxp;
- u16 raw_mask;
- unsigned bandwidth;
-
- /* This is used to initialize iTD's hw_bufp fields */
- __hc32 buf0;
- __hc32 buf1;
- __hc32 buf2;
-
- /* this is used to initialize sITD's tt info */
- __hc32 address;
-};
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * EHCI Specification 0.95 Section 3.3
- * Fig 3-4 "Isochronous Transaction Descriptor (iTD)"
- *
- * Schedule records for high speed iso xfers
- */
-struct fusbh200_itd {
- /* first part defined by EHCI spec */
- __hc32 hw_next; /* see EHCI 3.3.1 */
- __hc32 hw_transaction [8]; /* see EHCI 3.3.2 */
-#define FUSBH200_ISOC_ACTIVE (1<<31) /* activate transfer this slot */
-#define FUSBH200_ISOC_BUF_ERR (1<<30) /* Data buffer error */
-#define FUSBH200_ISOC_BABBLE (1<<29) /* babble detected */
-#define FUSBH200_ISOC_XACTERR (1<<28) /* XactErr - transaction error */
-#define FUSBH200_ITD_LENGTH(tok) (((tok)>>16) & 0x0fff)
-#define FUSBH200_ITD_IOC (1 << 15) /* interrupt on complete */
-
-#define ITD_ACTIVE(fusbh200) cpu_to_hc32(fusbh200, FUSBH200_ISOC_ACTIVE)
-
- __hc32 hw_bufp [7]; /* see EHCI 3.3.3 */
- __hc32 hw_bufp_hi [7]; /* Appendix B */
-
- /* the rest is HCD-private */
- dma_addr_t itd_dma; /* for this itd */
- union fusbh200_shadow itd_next; /* ptr to periodic q entry */
-
- struct urb *urb;
- struct fusbh200_iso_stream *stream; /* endpoint's queue */
- struct list_head itd_list; /* list of stream's itds */
-
- /* any/all hw_transactions here may be used by that urb */
- unsigned frame; /* where scheduled */
- unsigned pg;
- unsigned index[8]; /* in urb->iso_frame_desc */
-} __attribute__ ((aligned (32)));
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * EHCI Specification 0.96 Section 3.7
- * Periodic Frame Span Traversal Node (FSTN)
- *
- * Manages split interrupt transactions (using TT) that span frame boundaries
- * into uframes 0/1; see 4.12.2.2. In those uframes, a "save place" FSTN
- * makes the HC jump (back) to a QH to scan for fs/ls QH completions until
- * it hits a "restore" FSTN; then it returns to finish other uframe 0/1 work.
- */
-struct fusbh200_fstn {
- __hc32 hw_next; /* any periodic q entry */
- __hc32 hw_prev; /* qh or FUSBH200_LIST_END */
-
- /* the rest is HCD-private */
- dma_addr_t fstn_dma;
- union fusbh200_shadow fstn_next; /* ptr to periodic q entry */
-} __attribute__ ((aligned (32)));
-
-/*-------------------------------------------------------------------------*/
-
-/* Prepare the PORTSC wakeup flags during controller suspend/resume */
-
-#define fusbh200_prepare_ports_for_controller_suspend(fusbh200, do_wakeup) \
- fusbh200_adjust_port_wakeup_flags(fusbh200, true, do_wakeup);
-
-#define fusbh200_prepare_ports_for_controller_resume(fusbh200) \
- fusbh200_adjust_port_wakeup_flags(fusbh200, false, false);
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * Some EHCI controllers have a Transaction Translator built into the
- * root hub. This is a non-standard feature. Each controller will need
- * to add code to the following inline functions, and call them as
- * needed (mostly in root hub code).
- */
-
-static inline unsigned int
-fusbh200_get_speed(struct fusbh200_hcd *fusbh200, unsigned int portsc)
-{
- return (readl(&fusbh200->regs->bmcsr)
- & BMCSR_HOST_SPD_TYP) >> 9;
-}
-
-/* Returns the speed of a device attached to a port on the root hub. */
-static inline unsigned int
-fusbh200_port_speed(struct fusbh200_hcd *fusbh200, unsigned int portsc)
-{
- switch (fusbh200_get_speed(fusbh200, portsc)) {
- case 0:
- return 0;
- case 1:
- return USB_PORT_STAT_LOW_SPEED;
- case 2:
- default:
- return USB_PORT_STAT_HIGH_SPEED;
- }
-}
-
-/*-------------------------------------------------------------------------*/
-
-#define fusbh200_has_fsl_portno_bug(e) (0)
-
-/*
- * While most USB host controllers implement their registers in
- * little-endian format, a minority (celleb companion chip) implement
- * them in big endian format.
- *
- * This attempts to support either format at compile time without a
- * runtime penalty, or both formats with the additional overhead
- * of checking a flag bit.
- *
- */
-
-#define fusbh200_big_endian_mmio(e) 0
-#define fusbh200_big_endian_capbase(e) 0
-
-static inline unsigned int fusbh200_readl(const struct fusbh200_hcd *fusbh200,
- __u32 __iomem * regs)
-{
- return readl(regs);
-}
-
-static inline void fusbh200_writel(const struct fusbh200_hcd *fusbh200,
- const unsigned int val, __u32 __iomem *regs)
-{
- writel(val, regs);
-}
-
-/* cpu to fusbh200 */
-static inline __hc32 cpu_to_hc32 (const struct fusbh200_hcd *fusbh200, const u32 x)
-{
- return cpu_to_le32(x);
-}
-
-/* fusbh200 to cpu */
-static inline u32 hc32_to_cpu (const struct fusbh200_hcd *fusbh200, const __hc32 x)
-{
- return le32_to_cpu(x);
-}
-
-static inline u32 hc32_to_cpup (const struct fusbh200_hcd *fusbh200, const __hc32 *x)
-{
- return le32_to_cpup(x);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static inline unsigned fusbh200_read_frame_index(struct fusbh200_hcd *fusbh200)
-{
- return fusbh200_readl(fusbh200, &fusbh200->regs->frame_index);
-}
-
-#define fusbh200_itdlen(urb, desc, t) ({ \
- usb_pipein((urb)->pipe) ? \
- (desc)->length - FUSBH200_ITD_LENGTH(t) : \
- FUSBH200_ITD_LENGTH(t); \
-})
-/*-------------------------------------------------------------------------*/
-
-#endif /* __LINUX_FUSBH200_H */
diff --git a/kernel/drivers/usb/host/isp116x-hcd.c b/kernel/drivers/usb/host/isp116x-hcd.c
index 13181dcd9..d089b3fb7 100644
--- a/kernel/drivers/usb/host/isp116x-hcd.c
+++ b/kernel/drivers/usb/host/isp116x-hcd.c
@@ -500,7 +500,8 @@ static void start_atl_transfers(struct isp116x *isp116x)
if (isp116x->periodic_count) {
isp116x->fmindex = index =
(isp116x->fmindex + 1) & (PERIODIC_SIZE - 1);
- if ((load = isp116x->load[index])) {
+ load = isp116x->load[index];
+ if (load) {
/* Bring all int transfers for this frame
into the active queue */
isp116x->atl_active = last_ep =
diff --git a/kernel/drivers/usb/host/max3421-hcd.c b/kernel/drivers/usb/host/max3421-hcd.c
index fc1fd4039..bd98706d1 100644
--- a/kernel/drivers/usb/host/max3421-hcd.c
+++ b/kernel/drivers/usb/host/max3421-hcd.c
@@ -1944,7 +1944,6 @@ static struct spi_driver max3421_driver = {
.remove = max3421_remove,
.driver = {
.name = "max3421-hcd",
- .owner = THIS_MODULE,
},
};
diff --git a/kernel/drivers/usb/host/ohci-at91.c b/kernel/drivers/usb/host/ohci-at91.c
index 15df00cce..8c6e15bd6 100644
--- a/kernel/drivers/usb/host/ohci-at91.c
+++ b/kernel/drivers/usb/host/ohci-at91.c
@@ -36,6 +36,17 @@
#define hcd_to_ohci_at91_priv(h) \
((struct ohci_at91_priv *)hcd_to_ohci(h)->priv)
+#define AT91_MAX_USBH_PORTS 3
+struct at91_usbh_data {
+ int vbus_pin[AT91_MAX_USBH_PORTS]; /* port power-control pin */
+ int overcurrent_pin[AT91_MAX_USBH_PORTS];
+ u8 ports; /* number of ports on root hub */
+ u8 overcurrent_supported;
+ u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS];
+ u8 overcurrent_status[AT91_MAX_USBH_PORTS];
+ u8 overcurrent_changed[AT91_MAX_USBH_PORTS];
+};
+
struct ohci_at91_priv {
struct clk *iclk;
struct clk *fclk;
@@ -431,7 +442,6 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
return IRQ_HANDLED;
}
-#ifdef CONFIG_OF
static const struct of_device_id at91_ohci_dt_ids[] = {
{ .compatible = "atmel,at91rm9200-ohci" },
{ /* sentinel */ }
@@ -439,16 +449,17 @@ static const struct of_device_id at91_ohci_dt_ids[] = {
MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
-static int ohci_at91_of_init(struct platform_device *pdev)
+/*-------------------------------------------------------------------------*/
+
+static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
- int i, gpio, ret;
- enum of_gpio_flags flags;
struct at91_usbh_data *pdata;
- u32 ports;
-
- if (!np)
- return 0;
+ int i;
+ int gpio;
+ int ret;
+ enum of_gpio_flags flags;
+ u32 ports;
/* Right now device-tree probed devices don't get dma_mask set.
* Since shared usb code relies on it, set it here for now.
@@ -462,112 +473,83 @@ static int ohci_at91_of_init(struct platform_device *pdev)
if (!pdata)
return -ENOMEM;
+ pdev->dev.platform_data = pdata;
+
if (!of_property_read_u32(np, "num-ports", &ports))
pdata->ports = ports;
at91_for_each_port(i) {
- gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags);
+ /*
+ * do not configure PIO if not in relation with
+ * real USB port on board
+ */
+ if (i >= pdata->ports) {
+ pdata->vbus_pin[i] = -EINVAL;
+ pdata->overcurrent_pin[i] = -EINVAL;
+ continue;
+ }
+
+ gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i,
+ &flags);
pdata->vbus_pin[i] = gpio;
if (!gpio_is_valid(gpio))
continue;
pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW;
- }
-
- at91_for_each_port(i)
- pdata->overcurrent_pin[i] =
- of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
-
- pdev->dev.platform_data = pdata;
-
- return 0;
-}
-#else
-static int ohci_at91_of_init(struct platform_device *pdev)
-{
- return 0;
-}
-#endif
-
-/*-------------------------------------------------------------------------*/
-static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
-{
- struct at91_usbh_data *pdata;
- int i;
- int gpio;
- int ret;
-
- ret = ohci_at91_of_init(pdev);
- if (ret)
- return ret;
+ ret = gpio_request(gpio, "ohci_vbus");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't request vbus gpio %d\n", gpio);
+ continue;
+ }
+ ret = gpio_direction_output(gpio,
+ !pdata->vbus_pin_active_low[i]);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't put vbus gpio %d as output %d\n",
+ gpio, !pdata->vbus_pin_active_low[i]);
+ gpio_free(gpio);
+ continue;
+ }
- pdata = dev_get_platdata(&pdev->dev);
+ ohci_at91_usb_set_power(pdata, i, 1);
+ }
- if (pdata) {
- at91_for_each_port(i) {
- /*
- * do not configure PIO if not in relation with
- * real USB port on board
- */
- if (i >= pdata->ports) {
- pdata->vbus_pin[i] = -EINVAL;
- pdata->overcurrent_pin[i] = -EINVAL;
- break;
- }
+ at91_for_each_port(i) {
+ if (i >= pdata->ports)
+ break;
- if (!gpio_is_valid(pdata->vbus_pin[i]))
- continue;
- gpio = pdata->vbus_pin[i];
+ pdata->overcurrent_pin[i] =
+ of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
- ret = gpio_request(gpio, "ohci_vbus");
- if (ret) {
- dev_err(&pdev->dev,
- "can't request vbus gpio %d\n", gpio);
- continue;
- }
- ret = gpio_direction_output(gpio,
- !pdata->vbus_pin_active_low[i]);
- if (ret) {
- dev_err(&pdev->dev,
- "can't put vbus gpio %d as output %d\n",
- gpio, !pdata->vbus_pin_active_low[i]);
- gpio_free(gpio);
- continue;
- }
+ if (!gpio_is_valid(pdata->overcurrent_pin[i]))
+ continue;
+ gpio = pdata->overcurrent_pin[i];
- ohci_at91_usb_set_power(pdata, i, 1);
+ ret = gpio_request(gpio, "ohci_overcurrent");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't request overcurrent gpio %d\n",
+ gpio);
+ continue;
}
- at91_for_each_port(i) {
- if (!gpio_is_valid(pdata->overcurrent_pin[i]))
- continue;
- gpio = pdata->overcurrent_pin[i];
-
- ret = gpio_request(gpio, "ohci_overcurrent");
- if (ret) {
- dev_err(&pdev->dev,
- "can't request overcurrent gpio %d\n",
- gpio);
- continue;
- }
-
- ret = gpio_direction_input(gpio);
- if (ret) {
- dev_err(&pdev->dev,
- "can't configure overcurrent gpio %d as input\n",
- gpio);
- gpio_free(gpio);
- continue;
- }
+ ret = gpio_direction_input(gpio);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "can't configure overcurrent gpio %d as input\n",
+ gpio);
+ gpio_free(gpio);
+ continue;
+ }
- ret = request_irq(gpio_to_irq(gpio),
- ohci_hcd_at91_overcurrent_irq,
- IRQF_SHARED, "ohci_overcurrent", pdev);
- if (ret) {
- gpio_free(gpio);
- dev_err(&pdev->dev,
- "can't get gpio IRQ for overcurrent\n");
- }
+ ret = request_irq(gpio_to_irq(gpio),
+ ohci_hcd_at91_overcurrent_irq,
+ IRQF_SHARED, "ohci_overcurrent", pdev);
+ if (ret) {
+ gpio_free(gpio);
+ dev_err(&pdev->dev,
+ "can't get gpio IRQ for overcurrent\n");
}
}
@@ -673,7 +655,7 @@ static struct platform_driver ohci_hcd_at91_driver = {
.driver = {
.name = "at91_ohci",
.pm = &ohci_hcd_at91_pm_ops,
- .of_match_table = of_match_ptr(at91_ohci_dt_ids),
+ .of_match_table = at91_ohci_dt_ids,
},
};
diff --git a/kernel/drivers/usb/host/ohci-dbg.c b/kernel/drivers/usb/host/ohci-dbg.c
index 04f218693..c3eded317 100644
--- a/kernel/drivers/usb/host/ohci-dbg.c
+++ b/kernel/drivers/usb/host/ohci-dbg.c
@@ -491,7 +491,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
char *next;
unsigned i;
- if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
+ seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC);
+ if (!seen)
return 0;
seen_count = 0;
@@ -506,7 +507,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
/* dump a snapshot of the periodic schedule (and load) */
spin_lock_irqsave (&ohci->lock, flags);
for (i = 0; i < NUM_INTS; i++) {
- if (!(ed = ohci->periodic [i]))
+ ed = ohci->periodic[i];
+ if (!ed)
continue;
temp = scnprintf (next, size, "%2d [%3d]:", i, ohci->load [i]);
diff --git a/kernel/drivers/usb/host/ohci-hcd.c b/kernel/drivers/usb/host/ohci-hcd.c
index 1dab9dfbc..760cb57e9 100644
--- a/kernel/drivers/usb/host/ohci-hcd.c
+++ b/kernel/drivers/usb/host/ohci-hcd.c
@@ -155,7 +155,8 @@ static int ohci_urb_enqueue (
int retval = 0;
/* every endpoint has a ed, locate and maybe (re)initialize it */
- if (! (ed = ed_get (ohci, urb->ep, urb->dev, pipe, urb->interval)))
+ ed = ed_get(ohci, urb->ep, urb->dev, pipe, urb->interval);
+ if (! ed)
return -ENOMEM;
/* for the private part of the URB we need the number of TDs (size) */
diff --git a/kernel/drivers/usb/host/ohci-nxp.c b/kernel/drivers/usb/host/ohci-nxp.c
index d9f0481d7..cfa94275c 100644
--- a/kernel/drivers/usb/host/ohci-nxp.c
+++ b/kernel/drivers/usb/host/ohci-nxp.c
@@ -203,7 +203,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
goto fail_disable;
}
- ret = clk_enable(usb_pll_clk);
+ ret = clk_prepare_enable(usb_pll_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to start USB PLL\n");
goto fail_disable;
@@ -223,7 +223,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
goto fail_rate;
}
- ret = clk_enable(usb_dev_clk);
+ ret = clk_prepare_enable(usb_dev_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
goto fail_rate;
@@ -239,7 +239,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
__raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
- ret = clk_enable(usb_otg_clk);
+ ret = clk_prepare_enable(usb_otg_clk);
if (ret < 0) {
dev_err(&pdev->dev, "failed to start USB DEV Clock\n");
goto fail_otg;
@@ -283,11 +283,11 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev)
fail_resource:
usb_put_hcd(hcd);
fail_hcd:
- clk_disable(usb_otg_clk);
+ clk_disable_unprepare(usb_otg_clk);
fail_otg:
- clk_disable(usb_dev_clk);
+ clk_disable_unprepare(usb_dev_clk);
fail_rate:
- clk_disable(usb_pll_clk);
+ clk_disable_unprepare(usb_pll_clk);
fail_disable:
isp1301_i2c_client = NULL;
return ret;
@@ -300,9 +300,9 @@ static int ohci_hcd_nxp_remove(struct platform_device *pdev)
usb_remove_hcd(hcd);
ohci_nxp_stop_hc();
usb_put_hcd(hcd);
- clk_disable(usb_pll_clk);
- clk_disable(usb_dev_clk);
- i2c_unregister_device(isp1301_i2c_client);
+ clk_disable_unprepare(usb_otg_clk);
+ clk_disable_unprepare(usb_dev_clk);
+ clk_disable_unprepare(usb_pll_clk);
isp1301_i2c_client = NULL;
return 0;
diff --git a/kernel/drivers/usb/host/ohci-platform.c b/kernel/drivers/usb/host/ohci-platform.c
index 185ceee52..c2669f185 100644
--- a/kernel/drivers/usb/host/ohci-platform.c
+++ b/kernel/drivers/usb/host/ohci-platform.c
@@ -57,15 +57,13 @@ static int ohci_platform_power_on(struct platform_device *dev)
}
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- if (priv->phys[phy_num]) {
- ret = phy_init(priv->phys[phy_num]);
- if (ret)
- goto err_exit_phy;
- ret = phy_power_on(priv->phys[phy_num]);
- if (ret) {
- phy_exit(priv->phys[phy_num]);
- goto err_exit_phy;
- }
+ ret = phy_init(priv->phys[phy_num]);
+ if (ret)
+ goto err_exit_phy;
+ ret = phy_power_on(priv->phys[phy_num]);
+ if (ret) {
+ phy_exit(priv->phys[phy_num]);
+ goto err_exit_phy;
}
}
@@ -73,10 +71,8 @@ static int ohci_platform_power_on(struct platform_device *dev)
err_exit_phy:
while (--phy_num >= 0) {
- if (priv->phys[phy_num]) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
+ phy_power_off(priv->phys[phy_num]);
+ phy_exit(priv->phys[phy_num]);
}
err_disable_clks:
while (--clk >= 0)
@@ -92,10 +88,8 @@ static void ohci_platform_power_off(struct platform_device *dev)
int clk, phy_num;
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- if (priv->phys[phy_num]) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
+ phy_power_off(priv->phys[phy_num]);
+ phy_exit(priv->phys[phy_num]);
}
for (clk = OHCI_MAX_CLKS - 1; clk >= 0; clk--)
@@ -123,7 +117,6 @@ static int ohci_platform_probe(struct platform_device *dev)
struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
struct ohci_platform_priv *priv;
struct ohci_hcd *ohci;
- const char *phy_name;
int err, irq, phy_num, clk = 0;
if (usb_disabled())
@@ -174,36 +167,22 @@ static int ohci_platform_probe(struct platform_device *dev)
priv->num_phys = of_count_phandle_with_args(dev->dev.of_node,
"phys", "#phy-cells");
- priv->num_phys = priv->num_phys > 0 ? priv->num_phys : 1;
- priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
- sizeof(struct phy *), GFP_KERNEL);
- if (!priv->phys)
- return -ENOMEM;
+ if (priv->num_phys > 0) {
+ priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
+ sizeof(struct phy *), GFP_KERNEL);
+ if (!priv->phys)
+ return -ENOMEM;
+ } else
+ priv->num_phys = 0;
for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- err = of_property_read_string_index(
- dev->dev.of_node,
- "phy-names", phy_num,
- &phy_name);
-
- if (err < 0) {
- if (priv->num_phys > 1) {
- dev_err(&dev->dev, "phy-names not provided");
- goto err_put_hcd;
- } else
- phy_name = "usb";
- }
-
- priv->phys[phy_num] = devm_phy_get(&dev->dev,
- phy_name);
- if (IS_ERR(priv->phys[phy_num])) {
- err = PTR_ERR(priv->phys[phy_num]);
- if ((priv->num_phys > 1) ||
- (err == -EPROBE_DEFER))
- goto err_put_hcd;
- priv->phys[phy_num] = NULL;
- }
+ priv->phys[phy_num] = devm_of_phy_get_by_index(
+ &dev->dev, dev->dev.of_node, phy_num);
+ if (IS_ERR(priv->phys[phy_num])) {
+ err = PTR_ERR(priv->phys[phy_num]);
+ goto err_put_hcd;
+ }
}
for (clk = 0; clk < OHCI_MAX_CLKS; clk++) {
diff --git a/kernel/drivers/usb/host/ohci-q.c b/kernel/drivers/usb/host/ohci-q.c
index fe1d5fc7d..d029bbe9e 100644
--- a/kernel/drivers/usb/host/ohci-q.c
+++ b/kernel/drivers/usb/host/ohci-q.c
@@ -407,7 +407,8 @@ static struct ed *ed_get (
spin_lock_irqsave (&ohci->lock, flags);
- if (!(ed = ep->hcpriv)) {
+ ed = ep->hcpriv;
+ if (!ed) {
struct td *td;
int is_out;
u32 info;
diff --git a/kernel/drivers/usb/host/ohci-spear.c b/kernel/drivers/usb/host/ohci-spear.c
index 707437c88..56478ed2f 100644
--- a/kernel/drivers/usb/host/ohci-spear.c
+++ b/kernel/drivers/usb/host/ohci-spear.c
@@ -161,6 +161,7 @@ static const struct of_device_id spear_ohci_id_table[] = {
{ .compatible = "st,spear600-ohci", },
{ },
};
+MODULE_DEVICE_TABLE(of, spear_ohci_id_table);
/* Driver definition to register with the platform bus */
static struct platform_driver spear_ohci_hcd_driver = {
diff --git a/kernel/drivers/usb/host/ohci-tmio.c b/kernel/drivers/usb/host/ohci-tmio.c
index e9a6eec39..cfcfadfc9 100644
--- a/kernel/drivers/usb/host/ohci-tmio.c
+++ b/kernel/drivers/usb/host/ohci-tmio.c
@@ -58,7 +58,7 @@
#define CCR_PM_CKRNEN 0x0002
#define CCR_PM_USBPW1 0x0004
#define CCR_PM_USBPW2 0x0008
-#define CCR_PM_USBPW3 0x0008
+#define CCR_PM_USBPW3 0x0010
#define CCR_PM_PMEE 0x0100
#define CCR_PM_PMES 0x8000
diff --git a/kernel/drivers/usb/host/oxu210hp-hcd.c b/kernel/drivers/usb/host/oxu210hp-hcd.c
index 6352f54e6..1f139d82c 100644
--- a/kernel/drivers/usb/host/oxu210hp-hcd.c
+++ b/kernel/drivers/usb/host/oxu210hp-hcd.c
@@ -2670,7 +2670,6 @@ static int oxu_hcd_init(struct usb_hcd *hcd)
static int oxu_reset(struct usb_hcd *hcd)
{
struct oxu_hcd *oxu = hcd_to_oxu(hcd);
- int ret;
spin_lock_init(&oxu->mem_lock);
INIT_LIST_HEAD(&oxu->urb_list);
@@ -2696,11 +2695,7 @@ static int oxu_reset(struct usb_hcd *hcd)
oxu->hcs_params = readl(&oxu->caps->hcs_params);
oxu->sbrn = 0x20;
- ret = oxu_hcd_init(hcd);
- if (ret)
- return ret;
-
- return 0;
+ return oxu_hcd_init(hcd);
}
static int oxu_run(struct usb_hcd *hcd)
@@ -2726,7 +2721,7 @@ static int oxu_run(struct usb_hcd *hcd)
* streaming mappings for I/O buffers, like pci_map_single(),
* can return segments above 4GB, if the device allows.
*
- * NOTE: the dma mask is visible through dma_supported(), so
+ * NOTE: the dma mask is visible through dev->dma_mask, so
* drivers can pass this info along ... like NETIF_F_HIGHDMA,
* Scsi_Host.highmem_io, and so forth. It's readonly to all
* host side drivers though.
diff --git a/kernel/drivers/usb/host/ssb-hcd.c b/kernel/drivers/usb/host/ssb-hcd.c
index ffc32f4b1..62b6b7804 100644
--- a/kernel/drivers/usb/host/ssb-hcd.c
+++ b/kernel/drivers/usb/host/ssb-hcd.c
@@ -105,7 +105,7 @@ static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev, bool
{
struct platform_device *hci_dev;
struct resource hci_res[2];
- int ret = -ENOMEM;
+ int ret;
memset(hci_res, 0, sizeof(hci_res));
@@ -119,7 +119,7 @@ static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev, bool
hci_dev = platform_device_alloc(ohci ? "ohci-platform" :
"ehci-platform" , 0);
if (!hci_dev)
- return NULL;
+ return ERR_PTR(-ENOMEM);
hci_dev->dev.parent = dev->dev;
hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask;
@@ -166,7 +166,8 @@ static int ssb_hcd_probe(struct ssb_device *dev,
if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
return -EOPNOTSUPP;
- usb_dev = kzalloc(sizeof(struct ssb_hcd_device), GFP_KERNEL);
+ usb_dev = devm_kzalloc(dev->dev, sizeof(struct ssb_hcd_device),
+ GFP_KERNEL);
if (!usb_dev)
return -ENOMEM;
@@ -181,10 +182,8 @@ static int ssb_hcd_probe(struct ssb_device *dev,
start = ssb_admatch_base(tmp);
len = (coreid == SSB_DEV_USB20_HOST) ? 0x800 : ssb_admatch_size(tmp);
usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, true, start, len);
- if (IS_ERR(usb_dev->ohci_dev)) {
- err = PTR_ERR(usb_dev->ohci_dev);
- goto err_free_usb_dev;
- }
+ if (IS_ERR(usb_dev->ohci_dev))
+ return PTR_ERR(usb_dev->ohci_dev);
if (coreid == SSB_DEV_USB20_HOST) {
start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */
@@ -200,8 +199,6 @@ static int ssb_hcd_probe(struct ssb_device *dev,
err_unregister_ohci_dev:
platform_device_unregister(usb_dev->ohci_dev);
-err_free_usb_dev:
- kfree(usb_dev);
return err;
}
diff --git a/kernel/drivers/usb/host/u132-hcd.c b/kernel/drivers/usb/host/u132-hcd.c
index d51687780..692ccc693 100644
--- a/kernel/drivers/usb/host/u132-hcd.c
+++ b/kernel/drivers/usb/host/u132-hcd.c
@@ -1542,11 +1542,8 @@ static int u132_periodic_reinit(struct u132 *u132)
(fit ^ FIT) | u132->hc_fminterval);
if (retval)
return retval;
- retval = u132_write_pcimem(u132, periodicstart,
- ((9 * fi) / 10) & 0x3fff);
- if (retval)
- return retval;
- return 0;
+ return u132_write_pcimem(u132, periodicstart,
+ ((9 * fi) / 10) & 0x3fff);
}
static char *hcfs2string(int state)
@@ -2247,9 +2244,8 @@ static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
{
struct u132 *u132 = hcd_to_u132(hcd);
if (irqs_disabled()) {
- if (__GFP_WAIT & mem_flags) {
- printk(KERN_ERR "invalid context for function that migh"
- "t sleep\n");
+ if (gfpflags_allow_blocking(mem_flags)) {
+ printk(KERN_ERR "invalid context for function that might sleep\n");
return -EINVAL;
}
}
@@ -2701,28 +2697,18 @@ static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
if (wIndex == 0 || wIndex > u132->num_ports) {
return -EINVAL;
} else {
- int retval;
int port_index = wIndex - 1;
struct u132_port *port = &u132->port[port_index];
port->Status &= ~(1 << wValue);
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
- retval = u132_write_pcimem(u132,
- roothub.portstatus[port_index], RH_PS_PSS);
- if (retval)
- return retval;
- return 0;
+ return u132_write_pcimem(u132,
+ roothub.portstatus[port_index], RH_PS_PSS);
case USB_PORT_FEAT_POWER:
- retval = u132_write_pcimem(u132,
- roothub.portstatus[port_index], RH_PS_PPS);
- if (retval)
- return retval;
- return 0;
+ return u132_write_pcimem(u132,
+ roothub.portstatus[port_index], RH_PS_PPS);
case USB_PORT_FEAT_RESET:
- retval = u132_roothub_portreset(u132, port_index);
- if (retval)
- return retval;
- return 0;
+ return u132_roothub_portreset(u132, port_index);
default:
return -EPIPE;
}
@@ -2737,7 +2723,6 @@ static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
} else {
int port_index = wIndex - 1;
u32 temp;
- int retval;
struct u132_port *port = &u132->port[port_index];
port->Status &= ~(1 << wValue);
switch (wValue) {
@@ -2773,11 +2758,8 @@ static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
default:
return -EPIPE;
}
- retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
- temp);
- if (retval)
- return retval;
- return 0;
+ return u132_write_pcimem(u132, roothub.portstatus[port_index],
+ temp);
}
}
diff --git a/kernel/drivers/usb/host/uhci-platform.c b/kernel/drivers/usb/host/uhci-platform.c
index 3a3e3eeba..32a6f3d8d 100644
--- a/kernel/drivers/usb/host/uhci-platform.c
+++ b/kernel/drivers/usb/host/uhci-platform.c
@@ -140,6 +140,7 @@ static const struct of_device_id platform_uhci_ids[] = {
{ .compatible = "platform-uhci", },
{}
};
+MODULE_DEVICE_TABLE(of, platform_uhci_ids);
static struct platform_driver uhci_platform_driver = {
.probe = uhci_hcd_platform_probe,
diff --git a/kernel/drivers/usb/host/whci/init.c b/kernel/drivers/usb/host/whci/init.c
index d3e13b640..e36372393 100644
--- a/kernel/drivers/usb/host/whci/init.c
+++ b/kernel/drivers/usb/host/whci/init.c
@@ -175,8 +175,7 @@ void whc_clean_up(struct whc *whc)
pzl_clean_up(whc);
asl_clean_up(whc);
- if (whc->qset_pool)
- dma_pool_destroy(whc->qset_pool);
+ dma_pool_destroy(whc->qset_pool);
len = resource_size(&whc->umc->resource);
if (whc->base)
diff --git a/kernel/drivers/usb/host/whci/qset.c b/kernel/drivers/usb/host/whci/qset.c
index dc31c425c..9f1c0538b 100644
--- a/kernel/drivers/usb/host/whci/qset.c
+++ b/kernel/drivers/usb/host/whci/qset.c
@@ -377,6 +377,10 @@ static int qset_fill_page_list(struct whc *whc, struct whc_std *std, gfp_t mem_f
if (std->pl_virt == NULL)
return -ENOMEM;
std->dma_addr = dma_map_single(whc->wusbhc.dev, std->pl_virt, pl_len, DMA_TO_DEVICE);
+ if (dma_mapping_error(whc->wusbhc.dev, std->dma_addr)) {
+ kfree(std->pl_virt);
+ return -EFAULT;
+ }
for (p = 0; p < std->num_pointers; p++) {
std->pl_virt[p].buf_ptr = cpu_to_le64(dma_addr);
diff --git a/kernel/drivers/usb/host/xhci-dbg.c b/kernel/drivers/usb/host/xhci-dbg.c
index 745717ec9..74c42f722 100644
--- a/kernel/drivers/usb/host/xhci-dbg.c
+++ b/kernel/drivers/usb/host/xhci-dbg.c
@@ -58,16 +58,17 @@ void xhci_dbg_regs(struct xhci_hcd *xhci)
static void xhci_print_cap_regs(struct xhci_hcd *xhci)
{
u32 temp;
+ u32 hci_version;
xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs);
temp = readl(&xhci->cap_regs->hc_capbase);
+ hci_version = HC_VERSION(temp);
xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n",
(unsigned int) temp);
xhci_dbg(xhci, "CAPLENGTH: 0x%x\n",
(unsigned int) HC_LENGTH(temp));
- xhci_dbg(xhci, "HCIVERSION: 0x%x\n",
- (unsigned int) HC_VERSION(temp));
+ xhci_dbg(xhci, "HCIVERSION: 0x%x\n", hci_version);
temp = readl(&xhci->cap_regs->hcs_params1);
xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n",
@@ -99,11 +100,27 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci)
xhci_dbg(xhci, "HCC PARAMS 0x%x:\n", (unsigned int) temp);
xhci_dbg(xhci, " HC generates %s bit addresses\n",
HCC_64BIT_ADDR(temp) ? "64" : "32");
+ xhci_dbg(xhci, " HC %s Contiguous Frame ID Capability\n",
+ HCC_CFC(temp) ? "has" : "hasn't");
+ xhci_dbg(xhci, " HC %s generate Stopped - Short Package event\n",
+ HCC_SPC(temp) ? "can" : "can't");
/* FIXME */
xhci_dbg(xhci, " FIXME: more HCCPARAMS debugging\n");
temp = readl(&xhci->cap_regs->run_regs_off);
xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK);
+
+ /* xhci 1.1 controllers have the HCCPARAMS2 register */
+ if (hci_version > 100) {
+ temp = readl(&xhci->cap_regs->hcc_params2);
+ xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp);
+ xhci_dbg(xhci, " HC %s Force save context capability",
+ HCC2_FSC(temp) ? "supports" : "doesn't support");
+ xhci_dbg(xhci, " HC %s Large ESIT Payload Capability",
+ HCC2_LEC(temp) ? "supports" : "doesn't support");
+ xhci_dbg(xhci, " HC %s Extended TBC capability",
+ HCC2_ETC(temp) ? "supports" : "doesn't support");
+ }
}
static void xhci_print_command_reg(struct xhci_hcd *xhci)
diff --git a/kernel/drivers/usb/host/xhci-hub.c b/kernel/drivers/usb/host/xhci-hub.c
index ee07ba41c..f980c239e 100644
--- a/kernel/drivers/usb/host/xhci-hub.c
+++ b/kernel/drivers/usb/host/xhci-hub.c
@@ -31,13 +31,15 @@
#define PORT_RWC_BITS (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \
PORT_RC | PORT_PLC | PORT_PE)
-/* USB 3.0 BOS descriptor and a capability descriptor, combined */
+/* USB 3 BOS descriptor and a capability descriptors, combined.
+ * Fields will be adjusted and added later in xhci_create_usb3_bos_desc()
+ */
static u8 usb_bos_descriptor [] = {
USB_DT_BOS_SIZE, /* __u8 bLength, 5 bytes */
USB_DT_BOS, /* __u8 bDescriptorType */
0x0F, 0x00, /* __le16 wTotalLength, 15 bytes */
0x1, /* __u8 bNumDeviceCaps */
- /* First device capability */
+ /* First device capability, SuperSpeed */
USB_DT_USB_SS_CAP_SIZE, /* __u8 bLength, 10 bytes */
USB_DT_DEVICE_CAPABILITY, /* Device Capability */
USB_SS_CAP_TYPE, /* bDevCapabilityType, SUPERSPEED_USB */
@@ -46,9 +48,108 @@ static u8 usb_bos_descriptor [] = {
0x03, /* bFunctionalitySupport,
USB 3.0 speed only */
0x00, /* bU1DevExitLat, set later. */
- 0x00, 0x00 /* __le16 bU2DevExitLat, set later. */
+ 0x00, 0x00, /* __le16 bU2DevExitLat, set later. */
+ /* Second device capability, SuperSpeedPlus */
+ 0x0c, /* bLength 12, will be adjusted later */
+ USB_DT_DEVICE_CAPABILITY, /* Device Capability */
+ USB_SSP_CAP_TYPE, /* bDevCapabilityType SUPERSPEED_PLUS */
+ 0x00, /* bReserved 0 */
+ 0x00, 0x00, 0x00, 0x00, /* bmAttributes, get from xhci psic */
+ 0x00, 0x00, /* wFunctionalitySupport */
+ 0x00, 0x00, /* wReserved 0 */
+ /* Sublink Speed Attributes are added in xhci_create_usb3_bos_desc() */
};
+static int xhci_create_usb3_bos_desc(struct xhci_hcd *xhci, char *buf,
+ u16 wLength)
+{
+ int i, ssa_count;
+ u32 temp;
+ u16 desc_size, ssp_cap_size, ssa_size = 0;
+ bool usb3_1 = false;
+
+ desc_size = USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
+ ssp_cap_size = sizeof(usb_bos_descriptor) - desc_size;
+
+ /* does xhci support USB 3.1 Enhanced SuperSpeed */
+ if (xhci->usb3_rhub.min_rev >= 0x01 && xhci->usb3_rhub.psi_uid_count) {
+ /* two SSA entries for each unique PSI ID, one RX and one TX */
+ ssa_count = xhci->usb3_rhub.psi_uid_count * 2;
+ ssa_size = ssa_count * sizeof(u32);
+ desc_size += ssp_cap_size;
+ usb3_1 = true;
+ }
+ memcpy(buf, &usb_bos_descriptor, min(desc_size, wLength));
+
+ if (usb3_1) {
+ /* modify bos descriptor bNumDeviceCaps and wTotalLength */
+ buf[4] += 1;
+ put_unaligned_le16(desc_size + ssa_size, &buf[2]);
+ }
+
+ if (wLength < USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE)
+ return wLength;
+
+ /* Indicate whether the host has LTM support. */
+ temp = readl(&xhci->cap_regs->hcc_params);
+ if (HCC_LTC(temp))
+ buf[8] |= USB_LTM_SUPPORT;
+
+ /* Set the U1 and U2 exit latencies. */
+ if ((xhci->quirks & XHCI_LPM_SUPPORT)) {
+ temp = readl(&xhci->cap_regs->hcs_params3);
+ buf[12] = HCS_U1_LATENCY(temp);
+ put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]);
+ }
+
+ if (usb3_1) {
+ u32 ssp_cap_base, bm_attrib, psi;
+ int offset;
+
+ ssp_cap_base = USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
+
+ if (wLength < desc_size)
+ return wLength;
+ buf[ssp_cap_base] = ssp_cap_size + ssa_size;
+
+ /* attribute count SSAC bits 4:0 and ID count SSIC bits 8:5 */
+ bm_attrib = (ssa_count - 1) & 0x1f;
+ bm_attrib |= (xhci->usb3_rhub.psi_uid_count - 1) << 5;
+ put_unaligned_le32(bm_attrib, &buf[ssp_cap_base + 4]);
+
+ if (wLength < desc_size + ssa_size)
+ return wLength;
+ /*
+ * Create the Sublink Speed Attributes (SSA) array.
+ * The xhci PSI field and USB 3.1 SSA fields are very similar,
+ * but link type bits 7:6 differ for values 01b and 10b.
+ * xhci has also only one PSI entry for a symmetric link when
+ * USB 3.1 requires two SSA entries (RX and TX) for every link
+ */
+ offset = desc_size;
+ for (i = 0; i < xhci->usb3_rhub.psi_count; i++) {
+ psi = xhci->usb3_rhub.psi[i];
+ psi &= ~USB_SSP_SUBLINK_SPEED_RSVD;
+ if ((psi & PLT_MASK) == PLT_SYM) {
+ /* Symmetric, create SSA RX and TX from one PSI entry */
+ put_unaligned_le32(psi, &buf[offset]);
+ psi |= 1 << 7; /* turn entry to TX */
+ offset += 4;
+ if (offset >= desc_size + ssa_size)
+ return desc_size + ssa_size;
+ } else if ((psi & PLT_MASK) == PLT_ASYM_RX) {
+ /* Asymetric RX, flip bits 7:6 for SSA */
+ psi ^= PLT_MASK;
+ }
+ put_unaligned_le32(psi, &buf[offset]);
+ offset += 4;
+ if (offset >= desc_size + ssa_size)
+ return desc_size + ssa_size;
+ }
+ }
+ /* ssa_size is 0 for other than usb 3.1 hosts */
+ return desc_size + ssa_size;
+}
static void xhci_common_hub_descriptor(struct xhci_hcd *xhci,
struct usb_hub_descriptor *desc, int ports)
@@ -161,7 +262,7 @@ static void xhci_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
struct usb_hub_descriptor *desc)
{
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
xhci_usb3_hub_descriptor(hcd, xhci, desc);
else
xhci_usb2_hub_descriptor(hcd, xhci, desc);
@@ -250,7 +351,7 @@ int xhci_find_slot_id_by_port(struct usb_hcd *hcd, struct xhci_hcd *xhci,
if (!xhci->devs[i])
continue;
speed = xhci->devs[i]->udev->speed;
- if (((speed == USB_SPEED_SUPER) == (hcd->speed == HCD_USB3))
+ if (((speed >= USB_SPEED_SUPER) == (hcd->speed >= HCD_USB3))
&& xhci->devs[i]->fake_port == port) {
slot_id = i;
break;
@@ -339,7 +440,7 @@ static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci,
u16 wIndex, __le32 __iomem *addr, u32 port_status)
{
/* Don't allow the USB core to disable SuperSpeed ports. */
- if (hcd->speed == HCD_USB3) {
+ if (hcd->speed >= HCD_USB3) {
xhci_dbg(xhci, "Ignoring request to disable "
"SuperSpeed port.\n");
return;
@@ -407,7 +508,7 @@ static int xhci_get_ports(struct usb_hcd *hcd, __le32 __iomem ***port_array)
int max_ports;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- if (hcd->speed == HCD_USB3) {
+ if (hcd->speed >= HCD_USB3) {
max_ports = xhci->num_usb3_ports;
*port_array = xhci->usb3_ports;
} else {
@@ -558,6 +659,22 @@ static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status,
}
}
+static u32 xhci_get_ext_port_status(u32 raw_port_status, u32 port_li)
+{
+ u32 ext_stat = 0;
+ int speed_id;
+
+ /* only support rx and tx lane counts of 1 in usb3.1 spec */
+ speed_id = DEV_PORT_SPEED(raw_port_status);
+ ext_stat |= speed_id; /* bits 3:0, RX speed id */
+ ext_stat |= speed_id << 4; /* bits 7:4, TX speed id */
+
+ ext_stat |= PORT_RX_LANES(port_li) << 8; /* bits 11:8 Rx lane count */
+ ext_stat |= PORT_TX_LANES(port_li) << 12; /* bits 15:12 Tx lane count */
+
+ return ext_stat;
+}
+
/*
* Converts a raw xHCI port status into the format that external USB 2.0 or USB
* 3.0 hubs use.
@@ -590,7 +707,7 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
if ((raw_port_status & PORT_RC))
status |= USB_PORT_STAT_C_RESET << 16;
/* USB3.0 only */
- if (hcd->speed == HCD_USB3) {
+ if (hcd->speed >= HCD_USB3) {
/* Port link change with port in resume state should not be
* reported to usbcore, as this is an internal state to be
* handled by xhci driver. Reporting PLC to usbcore may
@@ -606,18 +723,40 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
status |= USB_PORT_STAT_C_CONFIG_ERROR << 16;
}
- if (hcd->speed != HCD_USB3) {
+ if (hcd->speed < HCD_USB3) {
if ((raw_port_status & PORT_PLS_MASK) == XDEV_U3
&& (raw_port_status & PORT_POWER))
status |= USB_PORT_STAT_SUSPEND;
}
if ((raw_port_status & PORT_PLS_MASK) == XDEV_RESUME &&
- !DEV_SUPERSPEED(raw_port_status)) {
+ !DEV_SUPERSPEED_ANY(raw_port_status)) {
if ((raw_port_status & PORT_RESET) ||
!(raw_port_status & PORT_PE))
return 0xffffffff;
- if (time_after_eq(jiffies,
- bus_state->resume_done[wIndex])) {
+ /* did port event handler already start resume timing? */
+ if (!bus_state->resume_done[wIndex]) {
+ /* If not, maybe we are in a host initated resume? */
+ if (test_bit(wIndex, &bus_state->resuming_ports)) {
+ /* Host initated resume doesn't time the resume
+ * signalling using resume_done[].
+ * It manually sets RESUME state, sleeps 20ms
+ * and sets U0 state. This should probably be
+ * changed, but not right now.
+ */
+ } else {
+ /* port resume was discovered now and here,
+ * start resume timing
+ */
+ unsigned long timeout = jiffies +
+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
+
+ set_bit(wIndex, &bus_state->resuming_ports);
+ bus_state->resume_done[wIndex] = timeout;
+ mod_timer(&hcd->rh_timer, timeout);
+ }
+ /* Has resume been signalled for USB_RESUME_TIME yet? */
+ } else if (time_after_eq(jiffies,
+ bus_state->resume_done[wIndex])) {
int time_left;
xhci_dbg(xhci, "Resume USB2 port %d\n",
@@ -658,19 +797,35 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
} else {
/*
* The resume has been signaling for less than
- * 20ms. Report the port status as SUSPEND,
- * let the usbcore check port status again
- * and clear resume signaling later.
+ * USB_RESUME_TIME. Report the port status as SUSPEND,
+ * let the usbcore check port status again and clear
+ * resume signaling later.
*/
status |= USB_PORT_STAT_SUSPEND;
}
}
- if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0
- && (raw_port_status & PORT_POWER)
- && (bus_state->suspended_ports & (1 << wIndex))) {
- bus_state->suspended_ports &= ~(1 << wIndex);
- if (hcd->speed != HCD_USB3)
- bus_state->port_c_suspend |= 1 << wIndex;
+ /*
+ * Clear stale usb2 resume signalling variables in case port changed
+ * state during resume signalling. For example on error
+ */
+ if ((bus_state->resume_done[wIndex] ||
+ test_bit(wIndex, &bus_state->resuming_ports)) &&
+ (raw_port_status & PORT_PLS_MASK) != XDEV_U3 &&
+ (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) {
+ bus_state->resume_done[wIndex] = 0;
+ clear_bit(wIndex, &bus_state->resuming_ports);
+ }
+
+
+ if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0 &&
+ (raw_port_status & PORT_POWER)) {
+ if (bus_state->suspended_ports & (1 << wIndex)) {
+ bus_state->suspended_ports &= ~(1 << wIndex);
+ if (hcd->speed < HCD_USB3)
+ bus_state->port_c_suspend |= 1 << wIndex;
+ }
+ bus_state->resume_done[wIndex] = 0;
+ clear_bit(wIndex, &bus_state->resuming_ports);
}
if (raw_port_status & PORT_CONNECT) {
status |= USB_PORT_STAT_CONNECTION;
@@ -683,13 +838,13 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
if (raw_port_status & PORT_RESET)
status |= USB_PORT_STAT_RESET;
if (raw_port_status & PORT_POWER) {
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
status |= USB_SS_PORT_STAT_POWER;
else
status |= USB_PORT_STAT_POWER;
}
/* Update Port Link State */
- if (hcd->speed == HCD_USB3) {
+ if (hcd->speed >= HCD_USB3) {
xhci_hub_report_usb3_link_state(xhci, &status, raw_port_status);
/*
* Verify if all USB3 Ports Have entered U0 already.
@@ -734,7 +889,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
* descriptor for the USB 3.0 roothub. If not, we stall the
* endpoint, like external hubs do.
*/
- if (hcd->speed == HCD_USB3 &&
+ if (hcd->speed >= HCD_USB3 &&
(wLength < USB_DT_SS_HUB_SIZE ||
wValue != (USB_DT_SS_HUB << 8))) {
xhci_dbg(xhci, "Wrong hub descriptor type for "
@@ -748,25 +903,12 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
if ((wValue & 0xff00) != (USB_DT_BOS << 8))
goto error;
- if (hcd->speed != HCD_USB3)
+ if (hcd->speed < HCD_USB3)
goto error;
- /* Set the U1 and U2 exit latencies. */
- memcpy(buf, &usb_bos_descriptor,
- USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE);
- if ((xhci->quirks & XHCI_LPM_SUPPORT)) {
- temp = readl(&xhci->cap_regs->hcs_params3);
- buf[12] = HCS_U1_LATENCY(temp);
- put_unaligned_le16(HCS_U2_LATENCY(temp), &buf[13]);
- }
-
- /* Indicate whether the host has LTM support. */
- temp = readl(&xhci->cap_regs->hcc_params);
- if (HCC_LTC(temp))
- buf[8] |= USB_LTM_SUPPORT;
-
+ retval = xhci_create_usb3_bos_desc(xhci, buf, wLength);
spin_unlock_irqrestore(&xhci->lock, flags);
- return USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
+ return retval;
case GetPortStatus:
if (!wIndex || wIndex > max_ports)
goto error;
@@ -786,6 +928,19 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
xhci_dbg(xhci, "Get port status returned 0x%x\n", status);
put_unaligned(cpu_to_le32(status), (__le32 *) buf);
+ /* if USB 3.1 extended port status return additional 4 bytes */
+ if (wValue == 0x02) {
+ u32 port_li;
+
+ if (hcd->speed < HCD_USB31 || wLength != 8) {
+ xhci_err(xhci, "get ext port status invalid parameter\n");
+ retval = -EINVAL;
+ break;
+ }
+ port_li = readl(port_array[wIndex] + PORTLI);
+ status = xhci_get_ext_port_status(temp, port_li);
+ put_unaligned_le32(cpu_to_le32(status), &buf[4]);
+ }
break;
case SetPortFeature:
if (wValue == USB_PORT_FEAT_LINK_STATE)
@@ -952,7 +1107,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
temp = readl(port_array[wIndex]);
break;
case USB_PORT_FEAT_U1_TIMEOUT:
- if (hcd->speed != HCD_USB3)
+ if (hcd->speed < HCD_USB3)
goto error;
temp = readl(port_array[wIndex] + PORTPMSC);
temp &= ~PORT_U1_TIMEOUT_MASK;
@@ -960,7 +1115,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
writel(temp, port_array[wIndex] + PORTPMSC);
break;
case USB_PORT_FEAT_U2_TIMEOUT:
- if (hcd->speed != HCD_USB3)
+ if (hcd->speed < HCD_USB3)
goto error;
temp = readl(port_array[wIndex] + PORTPMSC);
temp &= ~PORT_U2_TIMEOUT_MASK;
@@ -995,6 +1150,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
if ((temp & PORT_PE) == 0)
goto error;
+ set_bit(wIndex, &bus_state->resuming_ports);
xhci_set_link_state(xhci, port_array, wIndex,
XDEV_RESUME);
spin_unlock_irqrestore(&xhci->lock, flags);
@@ -1002,6 +1158,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
spin_lock_irqsave(&xhci->lock, flags);
xhci_set_link_state(xhci, port_array, wIndex,
XDEV_U0);
+ clear_bit(wIndex, &bus_state->resuming_ports);
}
bus_state->port_c_suspend |= 1 << wIndex;
@@ -1194,6 +1351,10 @@ int xhci_bus_resume(struct usb_hcd *hcd)
struct xhci_bus_state *bus_state;
u32 temp;
unsigned long flags;
+ unsigned long port_was_suspended = 0;
+ bool need_usb2_u3_exit = false;
+ int slot_id;
+ int sret;
max_ports = xhci_get_ports(hcd, &port_array);
bus_state = &xhci->bus_state[hcd_index(hcd)];
@@ -1217,48 +1378,55 @@ int xhci_bus_resume(struct usb_hcd *hcd)
/* Check whether need resume ports. If needed
resume port and disable remote wakeup */
u32 temp;
- int slot_id;
temp = readl(port_array[port_index]);
- if (DEV_SUPERSPEED(temp))
+ if (DEV_SUPERSPEED_ANY(temp))
temp &= ~(PORT_RWC_BITS | PORT_CEC | PORT_WAKE_BITS);
else
temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS);
if (test_bit(port_index, &bus_state->bus_suspended) &&
(temp & PORT_PLS_MASK)) {
- if (DEV_SUPERSPEED(temp)) {
- xhci_set_link_state(xhci, port_array,
- port_index, XDEV_U0);
- } else {
+ set_bit(port_index, &port_was_suspended);
+ if (!DEV_SUPERSPEED_ANY(temp)) {
xhci_set_link_state(xhci, port_array,
port_index, XDEV_RESUME);
-
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(20);
- spin_lock_irqsave(&xhci->lock, flags);
-
- xhci_set_link_state(xhci, port_array,
- port_index, XDEV_U0);
+ need_usb2_u3_exit = true;
}
- /* wait for the port to enter U0 and report port link
- * state change.
- */
- spin_unlock_irqrestore(&xhci->lock, flags);
- msleep(20);
- spin_lock_irqsave(&xhci->lock, flags);
-
- /* Clear PLC */
- xhci_test_and_clear_bit(xhci, port_array, port_index,
- PORT_PLC);
-
- slot_id = xhci_find_slot_id_by_port(hcd,
- xhci, port_index + 1);
- if (slot_id)
- xhci_ring_device(xhci, slot_id);
} else
writel(temp, port_array[port_index]);
}
+ if (need_usb2_u3_exit) {
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ msleep(20);
+ spin_lock_irqsave(&xhci->lock, flags);
+ }
+
+ port_index = max_ports;
+ while (port_index--) {
+ if (!(port_was_suspended & BIT(port_index)))
+ continue;
+ /* Clear PLC to poll it later after XDEV_U0 */
+ xhci_test_and_clear_bit(xhci, port_array, port_index, PORT_PLC);
+ xhci_set_link_state(xhci, port_array, port_index, XDEV_U0);
+ }
+
+ port_index = max_ports;
+ while (port_index--) {
+ if (!(port_was_suspended & BIT(port_index)))
+ continue;
+ /* Poll and Clear PLC */
+ sret = xhci_handshake(port_array[port_index], PORT_PLC,
+ PORT_PLC, 10 * 1000);
+ if (sret)
+ xhci_warn(xhci, "port %d resume PLC timeout\n",
+ port_index);
+ xhci_test_and_clear_bit(xhci, port_array, port_index, PORT_PLC);
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci, port_index + 1);
+ if (slot_id)
+ xhci_ring_device(xhci, slot_id);
+ }
+
(void) readl(&xhci->op_regs->command);
bus_state->next_statechange = jiffies + msecs_to_jiffies(5);
diff --git a/kernel/drivers/usb/host/xhci-mem.c b/kernel/drivers/usb/host/xhci-mem.c
index 9a8c936cd..c48cbe731 100644
--- a/kernel/drivers/usb/host/xhci-mem.c
+++ b/kernel/drivers/usb/host/xhci-mem.c
@@ -1498,10 +1498,10 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
* use Event Data TRBs, and we don't chain in a link TRB on short
* transfers, we're basically dividing by 1.
*
- * xHCI 1.0 specification indicates that the Average TRB Length should
- * be set to 8 for control endpoints.
+ * xHCI 1.0 and 1.1 specification indicates that the Average TRB Length
+ * should be set to 8 for control endpoints.
*/
- if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version == 0x100)
+ if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version >= 0x100)
ep_ctx->tx_info |= cpu_to_le32(AVG_TRB_LENGTH_FOR_EP(8));
else
ep_ctx->tx_info |=
@@ -1792,8 +1792,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
int size;
int i, j, num_ports;
- if (timer_pending(&xhci->cmd_timer))
- del_timer_sync(&xhci->cmd_timer);
+ del_timer_sync(&xhci->cmd_timer);
/* Free the Event Ring Segment Table and the actual Event Ring */
size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries);
@@ -1829,24 +1828,20 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
for (i = 1; i < MAX_HC_SLOTS; ++i)
xhci_free_virt_device(xhci, i);
- if (xhci->segment_pool)
- dma_pool_destroy(xhci->segment_pool);
+ dma_pool_destroy(xhci->segment_pool);
xhci->segment_pool = NULL;
xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed segment pool");
- if (xhci->device_pool)
- dma_pool_destroy(xhci->device_pool);
+ dma_pool_destroy(xhci->device_pool);
xhci->device_pool = NULL;
xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed device context pool");
- if (xhci->small_streams_pool)
- dma_pool_destroy(xhci->small_streams_pool);
+ dma_pool_destroy(xhci->small_streams_pool);
xhci->small_streams_pool = NULL;
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Freed small stream array pool");
- if (xhci->medium_streams_pool)
- dma_pool_destroy(xhci->medium_streams_pool);
+ dma_pool_destroy(xhci->medium_streams_pool);
xhci->medium_streams_pool = NULL;
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Freed medium stream array pool");
@@ -2073,14 +2068,23 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
{
u32 temp, port_offset, port_count;
int i;
+ struct xhci_hub *rhub;
- if (major_revision > 0x03) {
+ temp = readl(addr);
+
+ if (XHCI_EXT_PORT_MAJOR(temp) == 0x03) {
+ rhub = &xhci->usb3_rhub;
+ } else if (XHCI_EXT_PORT_MAJOR(temp) <= 0x02) {
+ rhub = &xhci->usb2_rhub;
+ } else {
xhci_warn(xhci, "Ignoring unknown port speed, "
"Ext Cap %p, revision = 0x%x\n",
addr, major_revision);
/* Ignoring port protocol we can't understand. FIXME */
return;
}
+ rhub->maj_rev = XHCI_EXT_PORT_MAJOR(temp);
+ rhub->min_rev = XHCI_EXT_PORT_MINOR(temp);
/* Port offset and count in the third dword, see section 7.2 */
temp = readl(addr + 2);
@@ -2095,6 +2099,33 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
/* WTF? "Valid values are ‘1’ to MaxPorts" */
return;
+ rhub->psi_count = XHCI_EXT_PORT_PSIC(temp);
+ if (rhub->psi_count) {
+ rhub->psi = kcalloc(rhub->psi_count, sizeof(*rhub->psi),
+ GFP_KERNEL);
+ if (!rhub->psi)
+ rhub->psi_count = 0;
+
+ rhub->psi_uid_count++;
+ for (i = 0; i < rhub->psi_count; i++) {
+ rhub->psi[i] = readl(addr + 4 + i);
+
+ /* count unique ID values, two consecutive entries can
+ * have the same ID if link is assymetric
+ */
+ if (i && (XHCI_EXT_PORT_PSIV(rhub->psi[i]) !=
+ XHCI_EXT_PORT_PSIV(rhub->psi[i - 1])))
+ rhub->psi_uid_count++;
+
+ xhci_dbg(xhci, "PSIV:%d PSIE:%d PLT:%d PFD:%d LP:%d PSIM:%d\n",
+ XHCI_EXT_PORT_PSIV(rhub->psi[i]),
+ XHCI_EXT_PORT_PSIE(rhub->psi[i]),
+ XHCI_EXT_PORT_PLT(rhub->psi[i]),
+ XHCI_EXT_PORT_PFD(rhub->psi[i]),
+ XHCI_EXT_PORT_LP(rhub->psi[i]),
+ XHCI_EXT_PORT_PSIM(rhub->psi[i]));
+ }
+ }
/* cache usb2 port capabilities */
if (major_revision < 0x03 && xhci->num_ext_caps < max_caps)
xhci->ext_caps[xhci->num_ext_caps++] = temp;
@@ -2321,6 +2352,10 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
INIT_LIST_HEAD(&xhci->cmd_list);
+ /* init command timeout timer */
+ setup_timer(&xhci->cmd_timer, xhci_handle_command_timeout,
+ (unsigned long)xhci);
+
page_size = readl(&xhci->op_regs->page_size);
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Supported page size register = 0x%x", page_size);
@@ -2505,10 +2540,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
"Wrote ERST address to ir_set 0.");
xhci_print_ir_set(xhci, 0);
- /* init command timeout timer */
- setup_timer(&xhci->cmd_timer, xhci_handle_command_timeout,
- (unsigned long)xhci);
-
/*
* XXX: Might need to set the Interrupter Moderation Register to
* something other than the default (~1ms minimum between interrupts).
diff --git a/kernel/drivers/usb/host/xhci-pci.c b/kernel/drivers/usb/host/xhci-pci.c
index 2af32e26f..c2d65206e 100644
--- a/kernel/drivers/usb/host/xhci-pci.c
+++ b/kernel/drivers/usb/host/xhci-pci.c
@@ -23,10 +23,17 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>
+#include <linux/acpi.h>
#include "xhci.h"
#include "xhci-trace.h"
+#define SSIC_PORT_NUM 2
+#define SSIC_PORT_CFG2 0x880c
+#define SSIC_PORT_CFG2_OFFSET 0x30
+#define PROG_DONE (1 << 30)
+#define SSIC_PORT_UNUSED (1 << 31)
+
/* Device for a quirk */
#define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73
#define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000
@@ -40,11 +47,19 @@
#define PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI 0x22b5
#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI 0xa12f
#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f
+#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8
static const char hcd_name[] = "xhci_hcd";
static struct hc_driver __read_mostly xhci_pci_hc_driver;
+static int xhci_pci_setup(struct usb_hcd *hcd);
+
+static const struct xhci_driver_overrides xhci_pci_overrides __initconst = {
+ .extra_priv_size = sizeof(struct xhci_hcd),
+ .reset = xhci_pci_setup,
+};
+
/* called after powerup, by probe or system-pm "wakeup" */
static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev)
{
@@ -135,11 +150,13 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
xhci->quirks |= XHCI_SPURIOUS_REBOOT;
+ xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI)) {
+ pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI)) {
xhci->quirks |= XHCI_PME_STUCK_QUIRK;
}
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
@@ -168,20 +185,22 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
"QUIRK: Resetting on resume");
}
-/*
- * Make sure PME works on some Intel xHCI controllers by writing 1 to clear
- * the Internal PME flag bit in vendor specific PMCTRL register at offset 0x80a4
- */
-static void xhci_pme_quirk(struct xhci_hcd *xhci)
+#ifdef CONFIG_ACPI
+static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev)
{
- u32 val;
- void __iomem *reg;
-
- reg = (void __iomem *) xhci->cap_regs + 0x80a4;
- val = readl(reg);
- writel(val | BIT(28), reg);
- readl(reg);
+ static const u8 intel_dsm_uuid[] = {
+ 0xb7, 0x0c, 0x34, 0xac, 0x01, 0xe9, 0xbf, 0x45,
+ 0xb7, 0xe6, 0x2b, 0x34, 0xec, 0x93, 0x1e, 0x23,
+ };
+ union acpi_object *obj;
+
+ obj = acpi_evaluate_dsm(ACPI_HANDLE(&dev->dev), intel_dsm_uuid, 3, 1,
+ NULL);
+ ACPI_FREE(obj);
}
+#else
+static void xhci_pme_acpi_rtd3_enable(struct pci_dev *dev) { }
+#endif /* CONFIG_ACPI */
/* called during probe() after chip reset completes */
static int xhci_pci_setup(struct usb_hcd *hcd)
@@ -190,15 +209,17 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
int retval;
+ xhci = hcd_to_xhci(hcd);
+ if (!xhci->sbrn)
+ pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &xhci->sbrn);
+
retval = xhci_gen_setup(hcd, xhci_pci_quirks);
if (retval)
return retval;
- xhci = hcd_to_xhci(hcd);
if (!usb_hcd_is_primary_hcd(hcd))
return 0;
- pci_read_config_byte(pdev, XHCI_SBRN_OFFSET, &xhci->sbrn);
xhci_dbg(xhci, "Got SBRN %u\n", (unsigned int) xhci->sbrn);
/* Find any debug ports */
@@ -206,7 +227,6 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
if (!retval)
return retval;
- kfree(xhci);
return retval;
}
@@ -247,11 +267,6 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
goto dealloc_usb2_hcd;
}
- /* Set the xHCI pointer before xhci_pci_setup() (aka hcd_driver.reset)
- * is called by usb_add_hcd().
- */
- *((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci;
-
retval = usb_add_hcd(xhci->shared_hcd, dev->irq,
IRQF_SHARED);
if (retval)
@@ -262,6 +277,9 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
+ if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
+ xhci_pme_acpi_rtd3_enable(dev);
+
/* USB-2 and USB-3 roothubs initialized, allow runtime pm suspend */
pm_runtime_put_noidle(&dev->dev);
@@ -290,11 +308,62 @@ static void xhci_pci_remove(struct pci_dev *dev)
/* Workaround for spurious wakeups at shutdown with HSW */
if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
pci_set_power_state(dev, PCI_D3hot);
-
- kfree(xhci);
}
#ifdef CONFIG_PM
+/*
+ * In some Intel xHCI controllers, in order to get D3 working,
+ * through a vendor specific SSIC CONFIG register at offset 0x883c,
+ * SSIC PORT need to be marked as "unused" before putting xHCI
+ * into D3. After D3 exit, the SSIC port need to be marked as "used".
+ * Without this change, xHCI might not enter D3 state.
+ * Make sure PME works on some Intel xHCI controllers by writing 1 to clear
+ * the Internal PME flag bit in vendor specific PMCTRL register at offset 0x80a4
+ */
+static void xhci_pme_quirk(struct usb_hcd *hcd, bool suspend)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+ u32 val;
+ void __iomem *reg;
+ int i;
+
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+ pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI) {
+
+ for (i = 0; i < SSIC_PORT_NUM; i++) {
+ reg = (void __iomem *) xhci->cap_regs +
+ SSIC_PORT_CFG2 +
+ i * SSIC_PORT_CFG2_OFFSET;
+
+ /*
+ * Notify SSIC that SSIC profile programming
+ * is not done.
+ */
+ val = readl(reg) & ~PROG_DONE;
+ writel(val, reg);
+
+ /* Mark SSIC port as unused(suspend) or used(resume) */
+ val = readl(reg);
+ if (suspend)
+ val |= SSIC_PORT_UNUSED;
+ else
+ val &= ~SSIC_PORT_UNUSED;
+ writel(val, reg);
+
+ /* Notify SSIC that SSIC profile programming is done */
+ val = readl(reg) | PROG_DONE;
+ writel(val, reg);
+ readl(reg);
+ }
+ }
+
+ reg = (void __iomem *) xhci->cap_regs + 0x80a4;
+ val = readl(reg);
+ writel(val | BIT(28), reg);
+ readl(reg);
+}
+
static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
@@ -308,7 +377,7 @@ static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
pdev->no_d3cold = true;
if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
- xhci_pme_quirk(xhci);
+ xhci_pme_quirk(hcd, true);
return xhci_suspend(xhci, do_wakeup);
}
@@ -341,7 +410,7 @@ static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated)
usb_enable_intel_xhci_ports(pdev);
if (xhci->quirks & XHCI_PME_STUCK_QUIRK)
- xhci_pme_quirk(xhci);
+ xhci_pme_quirk(hcd, false);
retval = xhci_resume(xhci, hibernated);
return retval;
@@ -379,7 +448,7 @@ static struct pci_driver xhci_pci_driver = {
static int __init xhci_pci_init(void)
{
- xhci_init_driver(&xhci_pci_hc_driver, xhci_pci_setup);
+ xhci_init_driver(&xhci_pci_hc_driver, &xhci_pci_overrides);
#ifdef CONFIG_PM
xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend;
xhci_pci_hc_driver.pci_resume = xhci_pci_resume;
diff --git a/kernel/drivers/usb/host/xhci-plat.c b/kernel/drivers/usb/host/xhci-plat.c
index 783e81913..05647e675 100644
--- a/kernel/drivers/usb/host/xhci-plat.c
+++ b/kernel/drivers/usb/host/xhci-plat.c
@@ -19,6 +19,7 @@
#include <linux/usb/phy.h>
#include <linux/slab.h>
#include <linux/usb/xhci_pdriver.h>
+#include <linux/acpi.h>
#include "xhci.h"
#include "xhci-mvebu.h"
@@ -26,6 +27,15 @@
static struct hc_driver __read_mostly xhci_plat_hc_driver;
+static int xhci_plat_setup(struct usb_hcd *hcd);
+static int xhci_plat_start(struct usb_hcd *hcd);
+
+static const struct xhci_driver_overrides xhci_plat_overrides __initconst = {
+ .extra_priv_size = sizeof(struct xhci_hcd),
+ .reset = xhci_plat_setup,
+ .start = xhci_plat_start,
+};
+
static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
{
/*
@@ -84,14 +94,20 @@ static int xhci_plat_probe(struct platform_device *pdev)
if (irq < 0)
return -ENODEV;
- /* Initialize dma_mask and coherent_dma_mask to 32-bits */
- ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (ret)
- return ret;
- if (!pdev->dev.dma_mask)
- pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+ /* Try to set 64-bit DMA first */
+ if (WARN_ON(!pdev->dev.dma_mask))
+ /* Platform did not initialize dma_mask */
+ ret = dma_coerce_mask_and_coherent(&pdev->dev,
+ DMA_BIT_MASK(64));
else
- dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+
+ /* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */
+ if (ret) {
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
+ }
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
@@ -127,31 +143,21 @@ static int xhci_plat_probe(struct platform_device *pdev)
goto disable_clk;
}
- ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
- if (ret)
- goto disable_clk;
-
device_wakeup_enable(hcd->self.controller);
- /* USB 2.0 roothub is stored in the platform_device now. */
- hcd = platform_get_drvdata(pdev);
xhci = hcd_to_xhci(hcd);
xhci->clk = clk;
+ xhci->main_hcd = hcd;
xhci->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev,
dev_name(&pdev->dev), hcd);
if (!xhci->shared_hcd) {
ret = -ENOMEM;
- goto dealloc_usb2_hcd;
+ goto disable_clk;
}
if ((node && of_property_read_bool(node, "usb3-lpm-capable")) ||
(pdata && pdata->usb3_lpm_capable))
xhci->quirks |= XHCI_LPM_SUPPORT;
- /*
- * Set the xHCI pointer before xhci_plat_setup() (aka hcd_driver.reset)
- * is called by usb_add_hcd().
- */
- *((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci;
if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
@@ -168,21 +174,26 @@ static int xhci_plat_probe(struct platform_device *pdev)
goto put_usb3_hcd;
}
- ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+ ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
goto disable_usb_phy;
+ ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+ if (ret)
+ goto dealloc_usb2_hcd;
+
return 0;
+
+dealloc_usb2_hcd:
+ usb_remove_hcd(hcd);
+
disable_usb_phy:
usb_phy_shutdown(hcd->usb_phy);
put_usb3_hcd:
usb_put_hcd(xhci->shared_hcd);
-dealloc_usb2_hcd:
- usb_remove_hcd(hcd);
-
disable_clk:
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
@@ -201,13 +212,13 @@ static int xhci_plat_remove(struct platform_device *dev)
usb_remove_hcd(xhci->shared_hcd);
usb_phy_shutdown(hcd->usb_phy);
- usb_put_hcd(xhci->shared_hcd);
usb_remove_hcd(hcd);
+ usb_put_hcd(xhci->shared_hcd);
+
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
usb_put_hcd(hcd);
- kfree(xhci);
return 0;
}
@@ -258,6 +269,13 @@ static const struct of_device_id usb_xhci_of_match[] = {
MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
#endif
+static const struct acpi_device_id usb_xhci_acpi_match[] = {
+ /* XHCI-compliant USB Controller */
+ { "PNP0D10", },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+
static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe,
.remove = xhci_plat_remove,
@@ -265,14 +283,14 @@ static struct platform_driver usb_xhci_driver = {
.name = "xhci-hcd",
.pm = DEV_PM_OPS,
.of_match_table = of_match_ptr(usb_xhci_of_match),
+ .acpi_match_table = ACPI_PTR(usb_xhci_acpi_match),
},
};
MODULE_ALIAS("platform:xhci-hcd");
static int __init xhci_plat_init(void)
{
- xhci_init_driver(&xhci_plat_hc_driver, xhci_plat_setup);
- xhci_plat_hc_driver.start = xhci_plat_start;
+ xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides);
return platform_driver_register(&usb_xhci_driver);
}
module_init(xhci_plat_init);
diff --git a/kernel/drivers/usb/host/xhci-ring.c b/kernel/drivers/usb/host/xhci-ring.c
index b3a0a2275..db0f0831b 100644
--- a/kernel/drivers/usb/host/xhci-ring.c
+++ b/kernel/drivers/usb/host/xhci-ring.c
@@ -302,6 +302,15 @@ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci)
ret = xhci_handshake(&xhci->op_regs->cmd_ring,
CMD_RING_RUNNING, 0, 5 * 1000 * 1000);
if (ret < 0) {
+ /* we are about to kill xhci, give it one more chance */
+ xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
+ &xhci->op_regs->cmd_ring);
+ udelay(1000);
+ ret = xhci_handshake(&xhci->op_regs->cmd_ring,
+ CMD_RING_RUNNING, 0, 3 * 1000 * 1000);
+ if (ret == 0)
+ return 0;
+
xhci_err(xhci, "Stopped the command ring failed, "
"maybe the host is dead\n");
xhci->xhc_state |= XHCI_STATE_DYING;
@@ -1444,7 +1453,7 @@ static unsigned int find_faked_portnum_from_hw_portnum(struct usb_hcd *hcd,
* 1.1 ports are under the USB 2.0 hub. If the port speed
* matches the device speed, it's a similar speed port.
*/
- if ((port_speed == 0x03) == (hcd->speed == HCD_USB3))
+ if ((port_speed == 0x03) == (hcd->speed >= HCD_USB3))
num_similar_speed_ports++;
}
return num_similar_speed_ports;
@@ -1506,7 +1515,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
/* Find the right roothub. */
hcd = xhci_to_hcd(xhci);
- if ((major_revision == 0x03) != (hcd->speed == HCD_USB3))
+ if ((major_revision == 0x03) != (hcd->speed >= HCD_USB3))
hcd = xhci->shared_hcd;
if (major_revision == 0) {
@@ -1532,7 +1541,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
* correct bus_state structure.
*/
bus_state = &xhci->bus_state[hcd_index(hcd)];
- if (hcd->speed == HCD_USB3)
+ if (hcd->speed >= HCD_USB3)
port_array = xhci->usb3_ports;
else
port_array = xhci->usb2_ports;
@@ -1546,7 +1555,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
usb_hcd_resume_root_hub(hcd);
}
- if (hcd->speed == HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE)
+ if (hcd->speed >= HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE)
bus_state->port_remote_wakeup &= ~(1 << faked_port_index);
if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) {
@@ -1558,7 +1567,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
goto cleanup;
}
- if (DEV_SUPERSPEED(temp)) {
+ if (DEV_SUPERSPEED_ANY(temp)) {
xhci_dbg(xhci, "remote wake SS port %d\n", port_id);
/* Set a flag to say the port signaled remote wakeup,
* so we can tell the difference between the end of
@@ -1574,7 +1583,8 @@ static void handle_port_status(struct xhci_hcd *xhci,
*/
bogus_port_status = true;
goto cleanup;
- } else {
+ } else if (!test_bit(faked_port_index,
+ &bus_state->resuming_ports)) {
xhci_dbg(xhci, "resume HS port %d\n", port_id);
bus_state->resume_done[faked_port_index] = jiffies +
msecs_to_jiffies(USB_RESUME_TIMEOUT);
@@ -1586,7 +1596,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
}
if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 &&
- DEV_SUPERSPEED(temp)) {
+ DEV_SUPERSPEED_ANY(temp)) {
xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
/* We've just brought the device into U0 through either the
* Resume state after a device remote wakeup, or through the
@@ -1616,7 +1626,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
* RExit to a disconnect state). If so, let the the driver know it's
* out of the RExit state.
*/
- if (!DEV_SUPERSPEED(temp) &&
+ if (!DEV_SUPERSPEED_ANY(temp) &&
test_and_clear_bit(faked_port_index,
&bus_state->rexit_ports)) {
complete(&bus_state->rexit_done[faked_port_index]);
@@ -1624,7 +1634,7 @@ static void handle_port_status(struct xhci_hcd *xhci,
goto cleanup;
}
- if (hcd->speed != HCD_USB3)
+ if (hcd->speed < HCD_USB3)
xhci_test_and_clear_bit(xhci, port_array, faked_port_index,
PORT_PLC);
@@ -1812,7 +1822,9 @@ static int finish_td(struct xhci_hcd *xhci, struct xhci_td *td,
if (skip)
goto td_cleanup;
- if (trb_comp_code == COMP_STOP_INVAL || trb_comp_code == COMP_STOP) {
+ if (trb_comp_code == COMP_STOP_INVAL ||
+ trb_comp_code == COMP_STOP ||
+ trb_comp_code == COMP_STOP_SHORT) {
/* The Endpoint Stop Command completion will take care of any
* stopped TDs. A stopped TD may be restarted, so don't update
* the ring dequeue pointer or take this TD off any lists yet.
@@ -1919,8 +1931,22 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
else
*status = 0;
break;
- case COMP_STOP_INVAL:
+ case COMP_STOP_SHORT:
+ if (event_trb == ep_ring->dequeue || event_trb == td->last_trb)
+ xhci_warn(xhci, "WARN: Stopped Short Packet on ctrl setup or status TRB\n");
+ else
+ td->urb->actual_length =
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+
+ return finish_td(xhci, td, event_trb, event, ep, status, false);
case COMP_STOP:
+ /* Did we stop at data stage? */
+ if (event_trb != ep_ring->dequeue && event_trb != td->last_trb)
+ td->urb->actual_length =
+ td->urb->transfer_buffer_length -
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+ /* fall through */
+ case COMP_STOP_INVAL:
return finish_td(xhci, td, event_trb, event, ep, status, false);
default:
if (!xhci_requires_manual_halt_cleanup(xhci,
@@ -1937,7 +1963,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
td->urb->actual_length =
td->urb->transfer_buffer_length -
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
- else
+ else if (!td->urb_length_set)
td->urb->actual_length = 0;
return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -2014,6 +2040,8 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
}
if ((xhci->quirks & XHCI_TRUST_TX_LENGTH))
trb_comp_code = COMP_SHORT_TX;
+ /* fallthrough */
+ case COMP_STOP_SHORT:
case COMP_SHORT_TX:
frame->status = td->urb->transfer_flags & URB_SHORT_NOT_OK ?
-EREMOTEIO : 0;
@@ -2049,6 +2077,10 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
if (trb_comp_code == COMP_SUCCESS || skip_td) {
frame->actual_length = frame->length;
td->urb->actual_length += frame->length;
+ } else if (trb_comp_code == COMP_STOP_SHORT) {
+ frame->actual_length =
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+ td->urb->actual_length += frame->actual_length;
} else {
for (cur_trb = ep_ring->dequeue,
cur_seg = ep_ring->deq_seg; cur_trb != event_trb;
@@ -2129,6 +2161,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
*status = 0;
}
break;
+ case COMP_STOP_SHORT:
case COMP_SHORT_TX:
if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
*status = -EREMOTEIO;
@@ -2145,8 +2178,20 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
td->urb->ep->desc.bEndpointAddress,
td->urb->transfer_buffer_length,
EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
+ /* Stopped - short packet completion */
+ if (trb_comp_code == COMP_STOP_SHORT) {
+ td->urb->actual_length =
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
+
+ if (td->urb->transfer_buffer_length <
+ td->urb->actual_length) {
+ xhci_warn(xhci, "HC gave bad length of %d bytes txed\n",
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
+ td->urb->actual_length = 0;
+ /* status will be set by usb core for canceled urbs */
+ }
/* Fast path - was this the last TRB in the TD for this URB? */
- if (event_trb == td->last_trb) {
+ } else if (event_trb == td->last_trb) {
if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
td->urb->actual_length =
td->urb->transfer_buffer_length -
@@ -2230,6 +2275,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
u32 trb_comp_code;
int ret = 0;
int td_num = 0;
+ bool handling_skipped_tds = false;
slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
xdev = xhci->devs[slot_id];
@@ -2300,6 +2346,9 @@ static int handle_tx_event(struct xhci_hcd *xhci,
case COMP_STOP_INVAL:
xhci_dbg(xhci, "Stopped on No-op or Link TRB\n");
break;
+ case COMP_STOP_SHORT:
+ xhci_dbg(xhci, "Stopped with short packet transfer detected\n");
+ break;
case COMP_STALL:
xhci_dbg(xhci, "Stalled endpoint\n");
ep->ep_state |= EP_HALTED;
@@ -2363,6 +2412,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
ep->skip = true;
xhci_dbg(xhci, "Miss service interval error, set skip flag\n");
goto cleanup;
+ case COMP_PING_ERR:
+ ep->skip = true;
+ xhci_dbg(xhci, "No Ping response error, Skip one Isoc TD\n");
+ goto cleanup;
default:
if (xhci_is_vendor_info_code(xhci, trb_comp_code)) {
status = 0;
@@ -2499,13 +2552,18 @@ static int handle_tx_event(struct xhci_hcd *xhci,
ep, &status);
cleanup:
+
+
+ handling_skipped_tds = ep->skip &&
+ trb_comp_code != COMP_MISSED_INT &&
+ trb_comp_code != COMP_PING_ERR;
+
/*
- * Do not update event ring dequeue pointer if ep->skip is set.
- * Will roll back to continue process missed tds.
+ * Do not update event ring dequeue pointer if we're in a loop
+ * processing missed tds.
*/
- if (trb_comp_code == COMP_MISSED_INT || !ep->skip) {
+ if (!handling_skipped_tds)
inc_deq(xhci, xhci->event_ring);
- }
if (ret) {
urb = td->urb;
@@ -2540,7 +2598,7 @@ cleanup:
* Process them as short transfer until reach the td pointed by
* the event.
*/
- } while (ep->skip && trb_comp_code != COMP_MISSED_INT);
+ } while (handling_skipped_tds);
return 0;
}
@@ -2982,21 +3040,6 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
}
/*
- * The TD size is the number of bytes remaining in the TD (including this TRB),
- * right shifted by 10.
- * It must fit in bits 21:17, so it can't be bigger than 31.
- */
-static u32 xhci_td_remainder(unsigned int remainder)
-{
- u32 max = (1 << (21 - 17 + 1)) - 1;
-
- if ((remainder >> 10) >= max)
- return max << 17;
- else
- return (remainder >> 10) << 17;
-}
-
-/*
* For xHCI 1.0 host controllers, TD size is the number of max packet sized
* packets remaining in the TD (*not* including this TRB).
*
@@ -3008,30 +3051,36 @@ static u32 xhci_td_remainder(unsigned int remainder)
*
* TD size = total_packet_count - packets_transferred
*
- * It must fit in bits 21:17, so it can't be bigger than 31.
+ * For xHCI 0.96 and older, TD size field should be the remaining bytes
+ * including this TRB, right shifted by 10
+ *
+ * For all hosts it must fit in bits 21:17, so it can't be bigger than 31.
+ * This is taken care of in the TRB_TD_SIZE() macro
+ *
* The last TRB in a TD must have the TD size set to zero.
*/
-static u32 xhci_v1_0_td_remainder(int running_total, int trb_buff_len,
- unsigned int total_packet_count, struct urb *urb,
- unsigned int num_trbs_left)
+static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
+ int trb_buff_len, unsigned int td_total_len,
+ struct urb *urb, unsigned int num_trbs_left)
{
- int packets_transferred;
+ u32 maxp, total_packet_count;
+
+ if (xhci->hci_version < 0x100)
+ return ((td_total_len - transferred) >> 10);
+
+ maxp = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
+ total_packet_count = DIV_ROUND_UP(td_total_len, maxp);
/* One TRB with a zero-length data packet. */
- if (num_trbs_left == 0 || (running_total == 0 && trb_buff_len == 0))
+ if (num_trbs_left == 0 || (transferred == 0 && trb_buff_len == 0) ||
+ trb_buff_len == td_total_len)
return 0;
- /* All the TRB queueing functions don't count the current TRB in
- * running_total.
- */
- packets_transferred = (running_total + trb_buff_len) /
- GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
-
- if ((total_packet_count - packets_transferred) > 31)
- return 31 << 17;
- return (total_packet_count - packets_transferred) << 17;
+ /* Queueing functions don't count the current TRB into transferred */
+ return (total_packet_count - ((transferred + trb_buff_len) / maxp));
}
+
static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
struct urb *urb, int slot_id, unsigned int ep_index)
{
@@ -3041,9 +3090,11 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
struct xhci_td *td;
struct scatterlist *sg;
int num_sgs;
- int trb_buff_len, this_sg_len, running_total;
+ int trb_buff_len, this_sg_len, running_total, ret;
unsigned int total_packet_count;
+ bool zero_length_needed;
bool first_trb;
+ int last_trb_num;
u64 addr;
bool more_trbs_coming;
@@ -3059,13 +3110,27 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
total_packet_count = DIV_ROUND_UP(urb->transfer_buffer_length,
usb_endpoint_maxp(&urb->ep->desc));
- trb_buff_len = prepare_transfer(xhci, xhci->devs[slot_id],
+ ret = prepare_transfer(xhci, xhci->devs[slot_id],
ep_index, urb->stream_id,
num_trbs, urb, 0, mem_flags);
- if (trb_buff_len < 0)
- return trb_buff_len;
+ if (ret < 0)
+ return ret;
urb_priv = urb->hcpriv;
+
+ /* Deal with URB_ZERO_PACKET - need one more td/trb */
+ zero_length_needed = urb->transfer_flags & URB_ZERO_PACKET &&
+ urb_priv->length == 2;
+ if (zero_length_needed) {
+ num_trbs++;
+ xhci_dbg(xhci, "Creating zero length td.\n");
+ ret = prepare_transfer(xhci, xhci->devs[slot_id],
+ ep_index, urb->stream_id,
+ 1, urb, 1, mem_flags);
+ if (ret < 0)
+ return ret;
+ }
+
td = urb_priv->td[0];
/*
@@ -3095,6 +3160,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
trb_buff_len = urb->transfer_buffer_length;
first_trb = true;
+ last_trb_num = zero_length_needed ? 2 : 1;
/* Queue the first TRB, even if it's zero-length */
do {
u32 field = 0;
@@ -3112,12 +3178,15 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
/* Chain all the TRBs together; clear the chain bit in the last
* TRB to indicate it's the last TRB in the chain.
*/
- if (num_trbs > 1) {
+ if (num_trbs > last_trb_num) {
field |= TRB_CHAIN;
- } else {
- /* FIXME - add check for ZERO_PACKET flag before this */
+ } else if (num_trbs == last_trb_num) {
td->last_trb = ep_ring->enqueue;
field |= TRB_IOC;
+ } else if (zero_length_needed && num_trbs == 1) {
+ trb_buff_len = 0;
+ urb_priv->td[1]->last_trb = ep_ring->enqueue;
+ field |= TRB_IOC;
}
/* Only set interrupt on short packet for IN endpoints */
@@ -3133,17 +3202,12 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
}
/* Set the TRB length, TD size, and interrupter fields. */
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- urb->transfer_buffer_length -
- running_total);
- } else {
- remainder = xhci_v1_0_td_remainder(running_total,
- trb_buff_len, total_packet_count, urb,
- num_trbs - 1);
- }
+ remainder = xhci_td_remainder(xhci, running_total, trb_buff_len,
+ urb->transfer_buffer_length,
+ urb, num_trbs - 1);
+
length_field = TRB_LEN(trb_buff_len) |
- remainder |
+ TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
if (num_trbs > 1)
@@ -3179,7 +3243,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
if (running_total + trb_buff_len > urb->transfer_buffer_length)
trb_buff_len =
urb->transfer_buffer_length - running_total;
- } while (running_total < urb->transfer_buffer_length);
+ } while (num_trbs > 0);
check_trb_math(urb, num_trbs, running_total);
giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id,
@@ -3197,7 +3261,9 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
int num_trbs;
struct xhci_generic_trb *start_trb;
bool first_trb;
+ int last_trb_num;
bool more_trbs_coming;
+ bool zero_length_needed;
int start_cycle;
u32 field, length_field;
@@ -3228,7 +3294,6 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
num_trbs++;
running_total += TRB_MAX_BUFF_SIZE;
}
- /* FIXME: this doesn't deal with URB_ZERO_PACKET - need one more */
ret = prepare_transfer(xhci, xhci->devs[slot_id],
ep_index, urb->stream_id,
@@ -3237,6 +3302,20 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
return ret;
urb_priv = urb->hcpriv;
+
+ /* Deal with URB_ZERO_PACKET - need one more td/trb */
+ zero_length_needed = urb->transfer_flags & URB_ZERO_PACKET &&
+ urb_priv->length == 2;
+ if (zero_length_needed) {
+ num_trbs++;
+ xhci_dbg(xhci, "Creating zero length td.\n");
+ ret = prepare_transfer(xhci, xhci->devs[slot_id],
+ ep_index, urb->stream_id,
+ 1, urb, 1, mem_flags);
+ if (ret < 0)
+ return ret;
+ }
+
td = urb_priv->td[0];
/*
@@ -3258,7 +3337,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
trb_buff_len = urb->transfer_buffer_length;
first_trb = true;
-
+ last_trb_num = zero_length_needed ? 2 : 1;
/* Queue the first TRB, even if it's zero-length */
do {
u32 remainder = 0;
@@ -3275,12 +3354,15 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
/* Chain all the TRBs together; clear the chain bit in the last
* TRB to indicate it's the last TRB in the chain.
*/
- if (num_trbs > 1) {
+ if (num_trbs > last_trb_num) {
field |= TRB_CHAIN;
- } else {
- /* FIXME - add check for ZERO_PACKET flag before this */
+ } else if (num_trbs == last_trb_num) {
td->last_trb = ep_ring->enqueue;
field |= TRB_IOC;
+ } else if (zero_length_needed && num_trbs == 1) {
+ trb_buff_len = 0;
+ urb_priv->td[1]->last_trb = ep_ring->enqueue;
+ field |= TRB_IOC;
}
/* Only set interrupt on short packet for IN endpoints */
@@ -3288,17 +3370,12 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
field |= TRB_ISP;
/* Set the TRB length, TD size, and interrupter fields. */
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- urb->transfer_buffer_length -
- running_total);
- } else {
- remainder = xhci_v1_0_td_remainder(running_total,
- trb_buff_len, total_packet_count, urb,
- num_trbs - 1);
- }
+ remainder = xhci_td_remainder(xhci, running_total, trb_buff_len,
+ urb->transfer_buffer_length,
+ urb, num_trbs - 1);
+
length_field = TRB_LEN(trb_buff_len) |
- remainder |
+ TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
if (num_trbs > 1)
@@ -3318,7 +3395,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
trb_buff_len = urb->transfer_buffer_length - running_total;
if (trb_buff_len > TRB_MAX_BUFF_SIZE)
trb_buff_len = TRB_MAX_BUFF_SIZE;
- } while (running_total < urb->transfer_buffer_length);
+ } while (num_trbs > 0);
check_trb_math(urb, num_trbs, running_total);
giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id,
@@ -3336,7 +3413,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
struct usb_ctrlrequest *setup;
struct xhci_generic_trb *start_trb;
int start_cycle;
- u32 field, length_field;
+ u32 field, length_field, remainder;
struct urb_priv *urb_priv;
struct xhci_td *td;
@@ -3385,8 +3462,8 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
if (start_cycle == 0)
field |= 0x1;
- /* xHCI 1.0 6.4.1.2.1: Transfer Type field */
- if (xhci->hci_version == 0x100) {
+ /* xHCI 1.0/1.1 6.4.1.2.1: Transfer Type field */
+ if (xhci->hci_version >= 0x100) {
if (urb->transfer_buffer_length > 0) {
if (setup->bRequestType & USB_DIR_IN)
field |= TRB_TX_TYPE(TRB_DATA_IN);
@@ -3409,9 +3486,15 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
else
field = TRB_TYPE(TRB_DATA);
+ remainder = xhci_td_remainder(xhci, 0,
+ urb->transfer_buffer_length,
+ urb->transfer_buffer_length,
+ urb, 1);
+
length_field = TRB_LEN(urb->transfer_buffer_length) |
- xhci_td_remainder(urb->transfer_buffer_length) |
+ TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
+
if (urb->transfer_buffer_length > 0) {
if (setup->bRequestType & USB_DIR_IN)
field |= TRB_DIR_IN;
@@ -3517,6 +3600,97 @@ static unsigned int xhci_get_last_burst_packet_count(struct xhci_hcd *xhci,
}
}
+/*
+ * Calculates Frame ID field of the isochronous TRB identifies the
+ * target frame that the Interval associated with this Isochronous
+ * Transfer Descriptor will start on. Refer to 4.11.2.5 in 1.1 spec.
+ *
+ * Returns actual frame id on success, negative value on error.
+ */
+static int xhci_get_isoc_frame_id(struct xhci_hcd *xhci,
+ struct urb *urb, int index)
+{
+ int start_frame, ist, ret = 0;
+ int start_frame_id, end_frame_id, current_frame_id;
+
+ if (urb->dev->speed == USB_SPEED_LOW ||
+ urb->dev->speed == USB_SPEED_FULL)
+ start_frame = urb->start_frame + index * urb->interval;
+ else
+ start_frame = (urb->start_frame + index * urb->interval) >> 3;
+
+ /* Isochronous Scheduling Threshold (IST, bits 0~3 in HCSPARAMS2):
+ *
+ * If bit [3] of IST is cleared to '0', software can add a TRB no
+ * later than IST[2:0] Microframes before that TRB is scheduled to
+ * be executed.
+ * If bit [3] of IST is set to '1', software can add a TRB no later
+ * than IST[2:0] Frames before that TRB is scheduled to be executed.
+ */
+ ist = HCS_IST(xhci->hcs_params2) & 0x7;
+ if (HCS_IST(xhci->hcs_params2) & (1 << 3))
+ ist <<= 3;
+
+ /* Software shall not schedule an Isoch TD with a Frame ID value that
+ * is less than the Start Frame ID or greater than the End Frame ID,
+ * where:
+ *
+ * End Frame ID = (Current MFINDEX register value + 895 ms.) MOD 2048
+ * Start Frame ID = (Current MFINDEX register value + IST + 1) MOD 2048
+ *
+ * Both the End Frame ID and Start Frame ID values are calculated
+ * in microframes. When software determines the valid Frame ID value;
+ * The End Frame ID value should be rounded down to the nearest Frame
+ * boundary, and the Start Frame ID value should be rounded up to the
+ * nearest Frame boundary.
+ */
+ current_frame_id = readl(&xhci->run_regs->microframe_index);
+ start_frame_id = roundup(current_frame_id + ist + 1, 8);
+ end_frame_id = rounddown(current_frame_id + 895 * 8, 8);
+
+ start_frame &= 0x7ff;
+ start_frame_id = (start_frame_id >> 3) & 0x7ff;
+ end_frame_id = (end_frame_id >> 3) & 0x7ff;
+
+ xhci_dbg(xhci, "%s: index %d, reg 0x%x start_frame_id 0x%x, end_frame_id 0x%x, start_frame 0x%x\n",
+ __func__, index, readl(&xhci->run_regs->microframe_index),
+ start_frame_id, end_frame_id, start_frame);
+
+ if (start_frame_id < end_frame_id) {
+ if (start_frame > end_frame_id ||
+ start_frame < start_frame_id)
+ ret = -EINVAL;
+ } else if (start_frame_id > end_frame_id) {
+ if ((start_frame > end_frame_id &&
+ start_frame < start_frame_id))
+ ret = -EINVAL;
+ } else {
+ ret = -EINVAL;
+ }
+
+ if (index == 0) {
+ if (ret == -EINVAL || start_frame == start_frame_id) {
+ start_frame = start_frame_id + 1;
+ if (urb->dev->speed == USB_SPEED_LOW ||
+ urb->dev->speed == USB_SPEED_FULL)
+ urb->start_frame = start_frame;
+ else
+ urb->start_frame = start_frame << 3;
+ ret = 0;
+ }
+ }
+
+ if (ret) {
+ xhci_warn(xhci, "Frame ID %d (reg %d, index %d) beyond range (%d, %d)\n",
+ start_frame, current_frame_id, index,
+ start_frame_id, end_frame_id);
+ xhci_warn(xhci, "Ignore frame ID field, use SIA bit instead\n");
+ return ret;
+ }
+
+ return start_frame;
+}
+
/* This is for isoc transfer */
static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
struct urb *urb, int slot_id, unsigned int ep_index)
@@ -3533,7 +3707,9 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
u64 start_addr, addr;
int i, j;
bool more_trbs_coming;
+ struct xhci_virt_ep *xep;
+ xep = &xhci->devs[slot_id]->eps[ep_index];
ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
num_tds = urb->number_of_packets;
@@ -3581,6 +3757,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
td = urb_priv->td[i];
for (j = 0; j < trbs_per_td; j++) {
+ int frame_id = 0;
u32 remainder = 0;
field = 0;
@@ -3589,8 +3766,20 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
TRB_TLBPC(residue);
/* Queue the isoc TRB */
field |= TRB_TYPE(TRB_ISOC);
- /* Assume URB_ISO_ASAP is set */
- field |= TRB_SIA;
+
+ /* Calculate Frame ID and SIA fields */
+ if (!(urb->transfer_flags & URB_ISO_ASAP) &&
+ HCC_CFC(xhci->hcc_params)) {
+ frame_id = xhci_get_isoc_frame_id(xhci,
+ urb,
+ i);
+ if (frame_id >= 0)
+ field |= TRB_FRAME_ID(frame_id);
+ else
+ field |= TRB_SIA;
+ } else
+ field |= TRB_SIA;
+
if (i == 0) {
if (start_cycle == 0)
field |= 0x1;
@@ -3634,17 +3823,12 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
trb_buff_len = td_remain_len;
/* Set the TRB length, TD size, & interrupter fields. */
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- td_len - running_total);
- } else {
- remainder = xhci_v1_0_td_remainder(
- running_total, trb_buff_len,
- total_packet_count, urb,
- (trbs_per_td - j - 1));
- }
+ remainder = xhci_td_remainder(xhci, running_total,
+ trb_buff_len, td_len,
+ urb, trbs_per_td - j - 1);
+
length_field = TRB_LEN(trb_buff_len) |
- remainder |
+ TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
queue_trb(xhci, ep_ring, more_trbs_coming,
@@ -3666,6 +3850,10 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
}
}
+ /* store the next frame id */
+ if (HCC_CFC(xhci->hcc_params))
+ xep->next_frame_id = urb->start_frame + num_tds * urb->interval;
+
if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs == 0) {
if (xhci->quirks & XHCI_AMD_PLL_FIX)
usb_amd_quirk_pll_disable();
@@ -3702,9 +3890,9 @@ cleanup:
/*
* Check transfer ring to guarantee there is enough room for the urb.
* Update ISO URB start_frame and interval.
- * Update interval as xhci_queue_intr_tx does. Just use xhci frame_index to
- * update the urb->start_frame by now.
- * Always assume URB_ISO_ASAP set, and NEVER use urb->start_frame as input.
+ * Update interval as xhci_queue_intr_tx does. Use xhci frame_index to
+ * update urb->start_frame if URB_ISO_ASAP is set in transfer_flags or
+ * Contiguous Frame ID is not supported by HC.
*/
int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
struct urb *urb, int slot_id, unsigned int ep_index)
@@ -3717,8 +3905,11 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
int ep_interval;
int num_tds, num_trbs, i;
int ret;
+ struct xhci_virt_ep *xep;
+ int ist;
xdev = xhci->devs[slot_id];
+ xep = &xhci->devs[slot_id]->eps[ep_index];
ep_ring = xdev->eps[ep_index].ring;
ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
@@ -3735,14 +3926,10 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
if (ret)
return ret;
- start_frame = readl(&xhci->run_regs->microframe_index);
- start_frame &= 0x3fff;
-
- urb->start_frame = start_frame;
- if (urb->dev->speed == USB_SPEED_LOW ||
- urb->dev->speed == USB_SPEED_FULL)
- urb->start_frame >>= 3;
-
+ /*
+ * Check interval value. This should be done before we start to
+ * calculate the start frame value.
+ */
xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx->ep_info));
ep_interval = urb->interval;
/* Convert to microframes */
@@ -3763,6 +3950,42 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags,
urb->dev->speed == USB_SPEED_FULL)
urb->interval /= 8;
}
+
+ /* Calculate the start frame and put it in urb->start_frame. */
+ if (HCC_CFC(xhci->hcc_params) && !list_empty(&ep_ring->td_list)) {
+ if ((le32_to_cpu(ep_ctx->ep_info) & EP_STATE_MASK) ==
+ EP_STATE_RUNNING) {
+ urb->start_frame = xep->next_frame_id;
+ goto skip_start_over;
+ }
+ }
+
+ start_frame = readl(&xhci->run_regs->microframe_index);
+ start_frame &= 0x3fff;
+ /*
+ * Round up to the next frame and consider the time before trb really
+ * gets scheduled by hardare.
+ */
+ ist = HCS_IST(xhci->hcs_params2) & 0x7;
+ if (HCS_IST(xhci->hcs_params2) & (1 << 3))
+ ist <<= 3;
+ start_frame += ist + XHCI_CFC_DELAY;
+ start_frame = roundup(start_frame, 8);
+
+ /*
+ * Round up to the next ESIT (Endpoint Service Interval Time) if ESIT
+ * is greate than 8 microframes.
+ */
+ if (urb->dev->speed == USB_SPEED_LOW ||
+ urb->dev->speed == USB_SPEED_FULL) {
+ start_frame = roundup(start_frame, urb->interval << 3);
+ urb->start_frame = start_frame >> 3;
+ } else {
+ start_frame = roundup(start_frame, urb->interval);
+ urb->start_frame = start_frame;
+ }
+
+skip_start_over:
ep_ring->num_trbs_free_temp = ep_ring->num_trbs_free;
return xhci_queue_isoc_tx(xhci, mem_flags, urb, slot_id, ep_index);
@@ -3784,8 +4007,11 @@ static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd,
{
int reserved_trbs = xhci->cmd_ring_reserved_trbs;
int ret;
- if (xhci->xhc_state & XHCI_STATE_DYING)
+
+ if (xhci->xhc_state) {
+ xhci_dbg(xhci, "xHCI dying or halted, can't queue_command\n");
return -ESHUTDOWN;
+ }
if (!command_must_succeed)
reserved_trbs++;
diff --git a/kernel/drivers/usb/host/xhci.c b/kernel/drivers/usb/host/xhci.c
index c502c2277..776d59c32 100644
--- a/kernel/drivers/usb/host/xhci.c
+++ b/kernel/drivers/usb/host/xhci.c
@@ -146,7 +146,8 @@ static int xhci_start(struct xhci_hcd *xhci)
"waited %u microseconds.\n",
XHCI_MAX_HALT_USEC);
if (!ret)
- xhci->xhc_state &= ~XHCI_STATE_HALTED;
+ xhci->xhc_state &= ~(XHCI_STATE_HALTED | XHCI_STATE_DYING);
+
return ret;
}
@@ -174,6 +175,16 @@ int xhci_reset(struct xhci_hcd *xhci)
command |= CMD_RESET;
writel(command, &xhci->op_regs->command);
+ /* Existing Intel xHCI controllers require a delay of 1 mS,
+ * after setting the CMD_RESET bit, and before accessing any
+ * HC registers. This allows the HC to complete the
+ * reset operation and be ready for HC register access.
+ * Without this delay, the subsequent HC register access,
+ * may result in a system hang very rarely.
+ */
+ if (xhci->quirks & XHCI_INTEL_HOST)
+ udelay(1000);
+
ret = xhci_handshake(&xhci->op_regs->command,
CMD_RESET, 0, 10 * 1000 * 1000);
if (ret)
@@ -654,21 +665,6 @@ int xhci_run(struct usb_hcd *hcd)
}
EXPORT_SYMBOL_GPL(xhci_run);
-static void xhci_only_stop_hcd(struct usb_hcd *hcd)
-{
- struct xhci_hcd *xhci = hcd_to_xhci(hcd);
-
- spin_lock_irq(&xhci->lock);
- xhci_halt(xhci);
-
- /* The shared_hcd is going to be deallocated shortly (the USB core only
- * calls this function when allocation fails in usb_add_hcd(), or
- * usb_remove_hcd() is called). So we need to unset xHCI's pointer.
- */
- xhci->shared_hcd = NULL;
- spin_unlock_irq(&xhci->lock);
-}
-
/*
* Stop xHCI driver.
*
@@ -683,12 +679,14 @@ void xhci_stop(struct usb_hcd *hcd)
u32 temp;
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- if (!usb_hcd_is_primary_hcd(hcd)) {
- xhci_only_stop_hcd(xhci->shared_hcd);
+ if (xhci->xhc_state & XHCI_STATE_HALTED)
return;
- }
+ mutex_lock(&xhci->mutex);
spin_lock_irq(&xhci->lock);
+ xhci->xhc_state |= XHCI_STATE_HALTED;
+ xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
+
/* Make sure the xHC is halted for a USB3 roothub
* (xhci_stop() could be called as part of failed init).
*/
@@ -723,6 +721,7 @@ void xhci_stop(struct usb_hcd *hcd)
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"xhci_stop completed - status = %x",
readl(&xhci->op_regs->status));
+ mutex_unlock(&xhci->mutex);
}
/*
@@ -897,6 +896,9 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup)
struct usb_hcd *hcd = xhci_to_hcd(xhci);
u32 command;
+ if (!hcd->state)
+ return 0;
+
if (hcd->state != HC_STATE_SUSPENDED ||
xhci->shared_hcd->state != HC_STATE_SUSPENDED)
return -EINVAL;
@@ -983,6 +985,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
int retval = 0;
bool comp_timer_running = false;
+ if (!hcd->state)
+ return 0;
+
/* Wait a bit if either of the roothubs need to settle from the
* transition into bus suspend.
*/
@@ -1340,6 +1345,11 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
if (usb_endpoint_xfer_isoc(&urb->ep->desc))
size = urb->number_of_packets;
+ else if (usb_endpoint_is_bulk_out(&urb->ep->desc) &&
+ urb->transfer_buffer_length > 0 &&
+ urb->transfer_flags & URB_ZERO_PACKET &&
+ !(urb->transfer_buffer_length % usb_endpoint_maxp(&urb->ep->desc)))
+ size = 2;
else
size = 1;
@@ -1539,7 +1549,9 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
"HW died, freeing TD.");
urb_priv = urb->hcpriv;
- for (i = urb_priv->td_cnt; i < urb_priv->length; i++) {
+ for (i = urb_priv->td_cnt;
+ i < urb_priv->length && xhci->devs[urb->dev->slot_id];
+ i++) {
td = urb_priv->td[i];
if (!list_empty(&td->td_list))
list_del_init(&td->td_list);
@@ -3117,7 +3129,7 @@ static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci,
}
/*
- * The USB device drivers use this function (though the HCD interface in USB
+ * The USB device drivers use this function (through the HCD interface in USB
* core) to prepare a set of bulk endpoints to use streams. Streams are used to
* coordinate mass storage command queueing across multiple endpoints (basically
* a stream ID == a task ID).
@@ -3772,8 +3784,6 @@ disable_slot:
/*
* Issue an Address Device command and optionally send a corresponding
* SetAddress request to the device.
- * We should be protected by the usb_address0_mutex in hub_wq's hub_port_init,
- * so we should only issue and wait on one address command at the same time.
*/
static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
enum xhci_setup_dev setup)
@@ -3790,6 +3800,9 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
mutex_lock(&xhci->mutex);
+ if (xhci->xhc_state) /* dying or halted */
+ goto out;
+
if (!udev->slot_id) {
xhci_dbg_trace(xhci, trace_xhci_dbg_address,
"Bad Slot ID %d", udev->slot_id);
@@ -3972,7 +3985,7 @@ int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1)
__le32 __iomem *addr;
int raw_port;
- if (hcd->speed != HCD_USB3)
+ if (hcd->speed < HCD_USB3)
addr = xhci->usb2_ports[port1 - 1];
else
addr = xhci->usb3_ports[port1 - 1];
@@ -4123,7 +4136,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
int hird, exit_latency;
int ret;
- if (hcd->speed == HCD_USB3 || !xhci->hw_lpm_support ||
+ if (hcd->speed >= HCD_USB3 || !xhci->hw_lpm_support ||
!udev->lpm_capable)
return -EPERM;
@@ -4240,7 +4253,7 @@ int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
int portnum = udev->portnum - 1;
- if (hcd->speed == HCD_USB3 || !xhci->sw_lpm_support ||
+ if (hcd->speed >= HCD_USB3 || !xhci->sw_lpm_support ||
!udev->lpm_capable)
return 0;
@@ -4680,7 +4693,6 @@ int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd,
{
struct xhci_hcd *xhci;
u16 mel;
- int ret;
xhci = hcd_to_xhci(hcd);
if (!xhci || !(xhci->quirks & XHCI_LPM_SUPPORT) ||
@@ -4688,10 +4700,7 @@ int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd,
return 0;
mel = calculate_max_exit_latency(udev, state, USB3_LPM_DISABLED);
- ret = xhci_change_max_exit_latency(xhci, udev, mel);
- if (ret)
- return ret;
- return 0;
+ return xhci_change_max_exit_latency(xhci, udev, mel);
}
#else /* CONFIG_PM */
@@ -4771,8 +4780,16 @@ int xhci_update_hub_device(struct usb_hcd *hcd, struct usb_device *hdev,
ctrl_ctx->add_flags |= cpu_to_le32(SLOT_FLAG);
slot_ctx = xhci_get_slot_ctx(xhci, config_cmd->in_ctx);
slot_ctx->dev_info |= cpu_to_le32(DEV_HUB);
+ /*
+ * refer to section 6.2.2: MTT should be 0 for full speed hub,
+ * but it may be already set to 1 when setup an xHCI virtual
+ * device, so clear it anyway.
+ */
if (tt->multi)
slot_ctx->dev_info |= cpu_to_le32(DEV_MTT);
+ else if (hdev->speed == USB_SPEED_FULL)
+ slot_ctx->dev_info &= cpu_to_le32(~DEV_MTT);
+
if (xhci->hci_version > 0x95) {
xhci_dbg(xhci, "xHCI version %x needs hub "
"TT think time and number of ports\n",
@@ -4844,11 +4861,9 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
/* XHCI controllers don't stop the ep queue on short packets :| */
hcd->self.no_stop_on_short = 1;
+ xhci = hcd_to_xhci(hcd);
+
if (usb_hcd_is_primary_hcd(hcd)) {
- xhci = kzalloc(sizeof(struct xhci_hcd), GFP_KERNEL);
- if (!xhci)
- return -ENOMEM;
- *((struct xhci_hcd **) hcd->hcd_priv) = xhci;
xhci->main_hcd = hcd;
/* Mark the first roothub as being USB 2.0.
* The xHCI driver will register the USB 3.0 roothub.
@@ -4862,6 +4877,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
*/
hcd->has_tt = 1;
} else {
+ if (xhci->sbrn == 0x31) {
+ xhci_info(xhci, "Host supports USB 3.1 Enhanced SuperSpeed\n");
+ hcd->speed = HCD_USB31;
+ }
/* xHCI private pointer was set in xhci_pci_probe for the second
* registered roothub.
*/
@@ -4881,6 +4900,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
xhci->hcc_params = readl(&xhci->cap_regs->hc_capbase);
xhci->hci_version = HC_VERSION(xhci->hcc_params);
xhci->hcc_params = readl(&xhci->cap_regs->hcc_params);
+ if (xhci->hci_version > 0x100)
+ xhci->hcc_params2 = readl(&xhci->cap_regs->hcc_params2);
xhci_print_registers(xhci);
xhci->quirks = quirks;
@@ -4897,13 +4918,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
/* Make sure the HC is halted. */
retval = xhci_halt(xhci);
if (retval)
- goto error;
+ return retval;
xhci_dbg(xhci, "Resetting HCD\n");
/* Reset the internal HC memory state and registers. */
retval = xhci_reset(xhci);
if (retval)
- goto error;
+ return retval;
xhci_dbg(xhci, "Reset complete\n");
/* Set dma_mask and coherent_dma_mask to 64-bits,
@@ -4912,22 +4933,29 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
!dma_set_mask(dev, DMA_BIT_MASK(64))) {
xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n");
dma_set_coherent_mask(dev, DMA_BIT_MASK(64));
+ } else {
+ /*
+ * This is to avoid error in cases where a 32-bit USB
+ * controller is used on a 64-bit capable system.
+ */
+ retval = dma_set_mask(dev, DMA_BIT_MASK(32));
+ if (retval)
+ return retval;
+ xhci_dbg(xhci, "Enabling 32-bit DMA addresses.\n");
+ dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
}
xhci_dbg(xhci, "Calling HCD init\n");
/* Initialize HCD and host controller data structures. */
retval = xhci_init(hcd);
if (retval)
- goto error;
+ return retval;
xhci_dbg(xhci, "Called HCD init\n");
xhci_info(xhci, "hcc params 0x%08x hci version 0x%x quirks 0x%08x\n",
xhci->hcc_params, xhci->hci_version, xhci->quirks);
return 0;
-error:
- kfree(xhci);
- return retval;
}
EXPORT_SYMBOL_GPL(xhci_gen_setup);
@@ -4992,11 +5020,21 @@ static const struct hc_driver xhci_hc_driver = {
.find_raw_port_number = xhci_find_raw_port_number,
};
-void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *))
+void xhci_init_driver(struct hc_driver *drv,
+ const struct xhci_driver_overrides *over)
{
- BUG_ON(!setup_fn);
+ BUG_ON(!over);
+
+ /* Copy the generic table to drv then apply the overrides */
*drv = xhci_hc_driver;
- drv->reset = setup_fn;
+
+ if (over) {
+ drv->hcd_priv_size += over->extra_priv_size;
+ if (over->reset)
+ drv->reset = over->reset;
+ if (over->start)
+ drv->start = over->start;
+ }
}
EXPORT_SYMBOL_GPL(xhci_init_driver);
@@ -5019,10 +5057,14 @@ static int __init xhci_hcd_init(void)
BUILD_BUG_ON(sizeof(struct xhci_stream_ctx) != 4*32/8);
BUILD_BUG_ON(sizeof(union xhci_trb) != 4*32/8);
BUILD_BUG_ON(sizeof(struct xhci_erst_entry) != 4*32/8);
- BUILD_BUG_ON(sizeof(struct xhci_cap_regs) != 7*32/8);
+ BUILD_BUG_ON(sizeof(struct xhci_cap_regs) != 8*32/8);
BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
/* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
+
+ if (usb_disabled())
+ return -ENODEV;
+
return 0;
}
diff --git a/kernel/drivers/usb/host/xhci.h b/kernel/drivers/usb/host/xhci.h
index 0f26dd269..0b9451250 100644
--- a/kernel/drivers/usb/host/xhci.h
+++ b/kernel/drivers/usb/host/xhci.h
@@ -28,6 +28,7 @@
#include <linux/timer.h>
#include <linux/kernel.h>
#include <linux/usb/hcd.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
/* Code sharing between pci-quirks and xhci hcd */
#include "xhci-ext-caps.h"
@@ -56,6 +57,7 @@
* @hcc_params: HCCPARAMS - Capability Parameters
* @db_off: DBOFF - Doorbell array offset
* @run_regs_off: RTSOFF - Runtime register space offset
+ * @hcc_params2: HCCPARAMS2 Capability Parameters 2, xhci 1.1 only
*/
struct xhci_cap_regs {
__le32 hc_capbase;
@@ -65,6 +67,7 @@ struct xhci_cap_regs {
__le32 hcc_params;
__le32 db_off;
__le32 run_regs_off;
+ __le32 hcc_params2; /* xhci 1.1 */
/* Reserved up to (CAPLENGTH - 0x1C) */
};
@@ -119,6 +122,10 @@ struct xhci_cap_regs {
#define HCC_LTC(p) ((p) & (1 << 6))
/* true: no secondary Stream ID Support */
#define HCC_NSS(p) ((p) & (1 << 7))
+/* true: HC supports Stopped - Short Packet */
+#define HCC_SPC(p) ((p) & (1 << 9))
+/* true: HC has Contiguous Frame ID Capability */
+#define HCC_CFC(p) ((p) & (1 << 11))
/* Max size for Primary Stream Arrays - 2^(n+1), where n is bits 12:15 */
#define HCC_MAX_PSA(p) (1 << ((((p) >> 12) & 0xf) + 1))
/* Extended Capabilities pointer from PCI base - section 5.3.6 */
@@ -130,6 +137,21 @@ struct xhci_cap_regs {
/* run_regs_off bitmask - bits 0:4 reserved */
#define RTSOFF_MASK (~0x1f)
+/* HCCPARAMS2 - hcc_params2 - bitmasks */
+/* true: HC supports U3 entry Capability */
+#define HCC2_U3C(p) ((p) & (1 << 0))
+/* true: HC supports Configure endpoint command Max exit latency too large */
+#define HCC2_CMC(p) ((p) & (1 << 1))
+/* true: HC supports Force Save context Capability */
+#define HCC2_FSC(p) ((p) & (1 << 2))
+/* true: HC supports Compliance Transition Capability */
+#define HCC2_CTC(p) ((p) & (1 << 3))
+/* true: HC support Large ESIT payload Capability > 48k */
+#define HCC2_LEC(p) ((p) & (1 << 4))
+/* true: HC support Configuration Information Capability */
+#define HCC2_CIC(p) ((p) & (1 << 5))
+/* true: HC support Extended TBC Capability, Isoc burst count > 65535 */
+#define HCC2_ETC(p) ((p) & (1 << 6))
/* Number of registers per port */
#define NUM_PORT_REGS 4
@@ -265,7 +287,11 @@ struct xhci_op_regs {
/* CONFIG - Configure Register - config_reg bitmasks */
/* bits 0:7 - maximum number of device slots enabled (NumSlotsEn) */
#define MAX_DEVS(p) ((p) & 0xff)
-/* bits 8:31 - reserved and should be preserved */
+/* bit 8: U3 Entry Enabled, assert PLC when root port enters U3, xhci 1.1 */
+#define CONFIG_U3E (1 << 8)
+/* bit 9: Configuration Information Enable, xhci 1.1 */
+#define CONFIG_CIE (1 << 9)
+/* bits 10:31 - reserved and should be preserved */
/* PORTSC - Port Status and Control Register - port_status_base bitmasks */
/* true: device connected */
@@ -302,11 +328,16 @@ struct xhci_op_regs {
#define XDEV_LS (0x2 << 10)
#define XDEV_HS (0x3 << 10)
#define XDEV_SS (0x4 << 10)
+#define XDEV_SSP (0x5 << 10)
#define DEV_UNDEFSPEED(p) (((p) & DEV_SPEED_MASK) == (0x0<<10))
#define DEV_FULLSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_FS)
#define DEV_LOWSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_LS)
#define DEV_HIGHSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_HS)
#define DEV_SUPERSPEED(p) (((p) & DEV_SPEED_MASK) == XDEV_SS)
+#define DEV_SUPERSPEEDPLUS(p) (((p) & DEV_SPEED_MASK) == XDEV_SSP)
+#define DEV_SUPERSPEED_ANY(p) (((p) & DEV_SPEED_MASK) >= XDEV_SS)
+#define DEV_PORT_SPEED(p) (((p) >> 10) & 0x0f)
+
/* Bits 20:23 in the Slot Context are the speed for the device */
#define SLOT_SPEED_FS (XDEV_FS << 10)
#define SLOT_SPEED_LS (XDEV_LS << 10)
@@ -390,6 +421,9 @@ struct xhci_op_regs {
#define PORT_L1DS(p) (((p) & 0xff) << 8)
#define PORT_HLE (1 << 16)
+/* USB3 Protocol PORTLI Port Link Information */
+#define PORT_RX_LANES(p) (((p) >> 16) & 0xf)
+#define PORT_TX_LANES(p) (((p) >> 20) & 0xf)
/* USB2 Protocol PORTHLPMC */
#define PORT_HIRDM(p)((p) & 3)
@@ -515,9 +549,23 @@ struct xhci_protocol_caps {
};
#define XHCI_EXT_PORT_MAJOR(x) (((x) >> 24) & 0xff)
+#define XHCI_EXT_PORT_MINOR(x) (((x) >> 16) & 0xff)
+#define XHCI_EXT_PORT_PSIC(x) (((x) >> 28) & 0x0f)
#define XHCI_EXT_PORT_OFF(x) ((x) & 0xff)
#define XHCI_EXT_PORT_COUNT(x) (((x) >> 8) & 0xff)
+#define XHCI_EXT_PORT_PSIV(x) (((x) >> 0) & 0x0f)
+#define XHCI_EXT_PORT_PSIE(x) (((x) >> 4) & 0x03)
+#define XHCI_EXT_PORT_PLT(x) (((x) >> 6) & 0x03)
+#define XHCI_EXT_PORT_PFD(x) (((x) >> 8) & 0x01)
+#define XHCI_EXT_PORT_LP(x) (((x) >> 14) & 0x03)
+#define XHCI_EXT_PORT_PSIM(x) (((x) >> 16) & 0xffff)
+
+#define PLT_MASK (0x03 << 6)
+#define PLT_SYM (0x00 << 6)
+#define PLT_ASYM_RX (0x02 << 6)
+#define PLT_ASYM_TX (0x03 << 6)
+
/**
* struct xhci_container_ctx
* @type: Type of context. Used to calculated offsets to contained contexts.
@@ -891,6 +939,8 @@ struct xhci_virt_ep {
/* Bandwidth checking storage */
struct xhci_bw_info bw_info;
struct list_head bw_endpoint_list;
+ /* Isoch Frame ID checking storage */
+ int next_frame_id;
};
enum xhci_overhead_type {
@@ -1059,8 +1109,8 @@ struct xhci_transfer_event {
#define COMP_STOP 26
/* Same as COMP_EP_STOPPED, but the transferred length in the event is invalid */
#define COMP_STOP_INVAL 27
-/* Control Abort Error - Debug Capability - control pipe aborted */
-#define COMP_DBG_ABORT 28
+/* Same as COMP_EP_STOPPED, but a short packet detected */
+#define COMP_STOP_SHORT 28
/* Max Exit Latency Too Large Error */
#define COMP_MEL_ERR 29
/* TRB type 30 reserved */
@@ -1130,6 +1180,8 @@ enum xhci_setup_dev {
/* Normal TRB fields */
/* transfer_len bitmasks - bits 0:16 */
#define TRB_LEN(p) ((p) & 0x1ffff)
+/* TD Size, packets remaining in this TD, bits 21:17 (5 bits, so max 31) */
+#define TRB_TD_SIZE(p) (min((p), (u32)31) << 17)
/* Interrupter Target - which MSI-X vector to target the completion event at */
#define TRB_INTR_TARGET(p) (((p) & 0x3ff) << 22)
#define GET_INTR_TARGET(p) (((p) >> 22) & 0x3ff)
@@ -1165,6 +1217,7 @@ enum xhci_setup_dev {
/* Isochronous TRB specific fields */
#define TRB_SIA (1<<31)
+#define TRB_FRAME_ID(p) (((p) & 0x7ff) << 20)
struct xhci_generic_trb {
__le32 field[4];
@@ -1441,6 +1494,14 @@ static inline unsigned int hcd_index(struct usb_hcd *hcd)
return 1;
}
+struct xhci_hub {
+ u8 maj_rev;
+ u8 min_rev;
+ u32 *psi; /* array of protocol speed ID entries */
+ u8 psi_count;
+ u8 psi_uid_count;
+};
+
/* There is one xhci_hcd structure per controller */
struct xhci_hcd {
struct usb_hcd *main_hcd;
@@ -1458,6 +1519,7 @@ struct xhci_hcd {
__u32 hcs_params2;
__u32 hcs_params3;
__u32 hcc_params;
+ __u32 hcc_params2;
spinlock_t lock;
@@ -1579,6 +1641,8 @@ struct xhci_hcd {
unsigned int num_usb3_ports;
/* Array of pointers to USB 2.0 PORTSC registers */
__le32 __iomem **usb2_ports;
+ struct xhci_hub usb2_rhub;
+ struct xhci_hub usb3_rhub;
unsigned int num_usb2_ports;
/* support xHCI 0.96 spec USB2 software LPM */
unsigned sw_lpm_support:1;
@@ -1594,10 +1658,26 @@ struct xhci_hcd {
#define COMP_MODE_RCVRY_MSECS 2000
};
+/* Platform specific overrides to generic XHCI hc_driver ops */
+struct xhci_driver_overrides {
+ size_t extra_priv_size;
+ int (*reset)(struct usb_hcd *hcd);
+ int (*start)(struct usb_hcd *hcd);
+};
+
+#define XHCI_CFC_DELAY 10
+
/* convert between an HCD pointer and the corresponding EHCI_HCD */
static inline struct xhci_hcd *hcd_to_xhci(struct usb_hcd *hcd)
{
- return *((struct xhci_hcd **) (hcd->hcd_priv));
+ struct usb_hcd *primary_hcd;
+
+ if (usb_hcd_is_primary_hcd(hcd))
+ primary_hcd = hcd;
+ else
+ primary_hcd = hcd->primary_hcd;
+
+ return (struct xhci_hcd *) (primary_hcd->hcd_priv);
}
static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
@@ -1628,20 +1708,12 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
static inline u64 xhci_read_64(const struct xhci_hcd *xhci,
__le64 __iomem *regs)
{
- __u32 __iomem *ptr = (__u32 __iomem *) regs;
- u64 val_lo = readl(ptr);
- u64 val_hi = readl(ptr + 1);
- return val_lo + (val_hi << 32);
+ return lo_hi_readq(regs);
}
static inline void xhci_write_64(struct xhci_hcd *xhci,
const u64 val, __le64 __iomem *regs)
{
- __u32 __iomem *ptr = (__u32 __iomem *) regs;
- u32 val_lo = lower_32_bits(val);
- u32 val_hi = upper_32_bits(val);
-
- writel(val_lo, ptr);
- writel(val_hi, ptr + 1);
+ lo_hi_writeq(val, regs);
}
static inline int xhci_link_trb_quirk(struct xhci_hcd *xhci)
@@ -1751,7 +1823,8 @@ int xhci_run(struct usb_hcd *hcd);
void xhci_stop(struct usb_hcd *hcd);
void xhci_shutdown(struct usb_hcd *hcd);
int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
-void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *));
+void xhci_init_driver(struct hc_driver *drv,
+ const struct xhci_driver_overrides *over);
#ifdef CONFIG_PM
int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup);
diff --git a/kernel/drivers/usb/image/microtek.c b/kernel/drivers/usb/image/microtek.c
index 6431d08c8..a4dbb0cd8 100644
--- a/kernel/drivers/usb/image/microtek.c
+++ b/kernel/drivers/usb/image/microtek.c
@@ -635,7 +635,6 @@ static struct scsi_host_template mts_scsi_host_template = {
.sg_tablesize = SG_ALL,
.can_queue = 1,
.this_id = -1,
- .cmd_per_lun = 1,
.use_clustering = 1,
.emulated = 1,
.slave_alloc = mts_slave_alloc,
diff --git a/kernel/drivers/usb/isp1760/isp1760-udc.c b/kernel/drivers/usb/isp1760/isp1760-udc.c
index 3fc4fe770..1c3d0fd65 100644
--- a/kernel/drivers/usb/isp1760/isp1760-udc.c
+++ b/kernel/drivers/usb/isp1760/isp1760-udc.c
@@ -812,6 +812,8 @@ static struct usb_request *isp1760_ep_alloc_request(struct usb_ep *ep,
struct isp1760_request *req;
req = kzalloc(sizeof(*req), gfp_flags);
+ if (!req)
+ return NULL;
return &req->req;
}
@@ -1380,14 +1382,25 @@ static void isp1760_udc_init_eps(struct isp1760_udc *udc)
* This fits in the 8kB FIFO without double-buffering.
*/
if (ep_num == 0) {
- ep->ep.maxpacket = 64;
+ usb_ep_set_maxpacket_limit(&ep->ep, 64);
+ ep->ep.caps.type_control = true;
+ ep->ep.caps.dir_in = true;
+ ep->ep.caps.dir_out = true;
ep->maxpacket = 64;
udc->gadget.ep0 = &ep->ep;
} else {
- ep->ep.maxpacket = 512;
+ usb_ep_set_maxpacket_limit(&ep->ep, 512);
+ ep->ep.caps.type_iso = true;
+ ep->ep.caps.type_bulk = true;
+ ep->ep.caps.type_int = true;
ep->maxpacket = 0;
list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
}
+
+ if (is_in)
+ ep->ep.caps.dir_in = true;
+ else
+ ep->ep.caps.dir_out = true;
}
}
diff --git a/kernel/drivers/usb/misc/chaoskey.c b/kernel/drivers/usb/misc/chaoskey.c
index 3ad5d19e4..23c794813 100644
--- a/kernel/drivers/usb/misc/chaoskey.c
+++ b/kernel/drivers/usb/misc/chaoskey.c
@@ -472,7 +472,7 @@ static int chaoskey_rng_read(struct hwrng *rng, void *data,
if (this_time > max)
this_time = max;
- memcpy(data, dev->buf, this_time);
+ memcpy(data, dev->buf + dev->used, this_time);
dev->used += this_time;
diff --git a/kernel/drivers/usb/misc/ftdi-elan.c b/kernel/drivers/usb/misc/ftdi-elan.c
index 8ab1f8f3c..52c27cab7 100644
--- a/kernel/drivers/usb/misc/ftdi-elan.c
+++ b/kernel/drivers/usb/misc/ftdi-elan.c
@@ -2568,11 +2568,7 @@ static int ftdi_elan_close_controller(struct usb_ftdi *ftdi, int fn)
0x00);
if (UxxxStatus)
return UxxxStatus;
- UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
- &pcidata);
- if (UxxxStatus)
- return UxxxStatus;
- return 0;
+ return ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, &pcidata);
}
static int ftdi_elan_found_controller(struct usb_ftdi *ftdi, int fn, int quirk)
@@ -2695,11 +2691,7 @@ static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi)
}
}
if (ftdi->function > 0) {
- UxxxStatus = ftdi_elan_setup_controller(ftdi,
- ftdi->function - 1);
- if (UxxxStatus)
- return UxxxStatus;
- return 0;
+ return ftdi_elan_setup_controller(ftdi, ftdi->function - 1);
} else if (controllers > 0) {
return -ENXIO;
} else if (unrecognized > 0) {
diff --git a/kernel/drivers/usb/misc/ldusb.c b/kernel/drivers/usb/misc/ldusb.c
index 82503a7ff..cce22ff1c 100644
--- a/kernel/drivers/usb/misc/ldusb.c
+++ b/kernel/drivers/usb/misc/ldusb.c
@@ -69,12 +69,6 @@
#define USB_DEVICE_ID_LD_HYBRID 0x2090 /* USB Product ID of Automotive Hybrid */
#define USB_DEVICE_ID_LD_HEATCONTROL 0x20A0 /* USB Product ID of Heat control */
-#define USB_VENDOR_ID_VERNIER 0x08f7
-#define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002
-#define USB_DEVICE_ID_VERNIER_SKIP 0x0003
-#define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004
-#define USB_DEVICE_ID_VERNIER_LCSPEC 0x0006
-
#ifdef CONFIG_USB_DYNAMIC_MINORS
#define USB_LD_MINOR_BASE 0
#else
@@ -115,10 +109,6 @@ static const struct usb_device_id ld_usb_table[] = {
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
{ USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
- { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
- { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
- { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
- { USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ld_usb_table);
diff --git a/kernel/drivers/usb/misc/lvstest.c b/kernel/drivers/usb/misc/lvstest.c
index 62cb8cd08..86b4e4b2a 100644
--- a/kernel/drivers/usb/misc/lvstest.c
+++ b/kernel/drivers/usb/misc/lvstest.c
@@ -4,7 +4,7 @@
* Test pattern generation for Link Layer Validation System Tests
*
* Copyright (C) 2014 ST Microelectronics
- * Pratyush Anand <pratyush.anand@st.com>
+ * Pratyush Anand <pratyush.anand@gmail.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
diff --git a/kernel/drivers/usb/misc/sisusbvga/sisusb.c b/kernel/drivers/usb/misc/sisusbvga/sisusb.c
index 022dc0008..306d6852e 100644
--- a/kernel/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/kernel/drivers/usb/misc/sisusbvga/sisusb.c
@@ -2316,10 +2316,12 @@ sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init)
/* Set mode 0x03 */
SiSUSBSetMode(sisusb->SiS_Pr, 0x03);
- if (!(myfont = find_font("VGA8x16")))
+ myfont = find_font("VGA8x16");
+ if (!myfont)
return 1;
- if (!(tempbuf = vmalloc(8192)))
+ tempbuf = vmalloc(8192);
+ if (!tempbuf)
return 1;
for (i = 0; i < 256; i++)
@@ -2342,7 +2344,8 @@ sisusb_reset_text_mode(struct sisusb_usb_data *sisusb, int init)
if (init && !sisusb->scrbuf) {
- if ((tempbuf = vmalloc(8192))) {
+ tempbuf = vmalloc(8192);
+ if (tempbuf) {
i = 4096;
tempbufb = (u16 *)tempbuf;
@@ -2417,11 +2420,13 @@ sisusb_open(struct inode *inode, struct file *file)
struct usb_interface *interface;
int subminor = iminor(inode);
- if (!(interface = usb_find_interface(&sisusb_driver, subminor))) {
+ interface = usb_find_interface(&sisusb_driver, subminor);
+ if (!interface) {
return -ENODEV;
}
- if (!(sisusb = usb_get_intfdata(interface))) {
+ sisusb = usb_get_intfdata(interface);
+ if (!sisusb) {
return -ENODEV;
}
@@ -2488,7 +2493,8 @@ sisusb_release(struct inode *inode, struct file *file)
{
struct sisusb_usb_data *sisusb;
- if (!(sisusb = file->private_data))
+ sisusb = file->private_data;
+ if (!sisusb)
return -ENODEV;
mutex_lock(&sisusb->lock);
@@ -2520,7 +2526,8 @@ sisusb_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
u16 buf16;
u32 buf32, address;
- if (!(sisusb = file->private_data))
+ sisusb = file->private_data;
+ if (!sisusb)
return -ENODEV;
mutex_lock(&sisusb->lock);
@@ -2662,7 +2669,8 @@ sisusb_write(struct file *file, const char __user *buffer, size_t count,
u16 buf16;
u32 buf32, address;
- if (!(sisusb = file->private_data))
+ sisusb = file->private_data;
+ if (!sisusb)
return -ENODEV;
mutex_lock(&sisusb->lock);
@@ -2805,7 +2813,8 @@ sisusb_lseek(struct file *file, loff_t offset, int orig)
struct sisusb_usb_data *sisusb;
loff_t ret;
- if (!(sisusb = file->private_data))
+ sisusb = file->private_data;
+ if (!sisusb)
return -ENODEV;
mutex_lock(&sisusb->lock);
@@ -2970,7 +2979,8 @@ sisusb_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
long retval = 0;
u32 __user *argp = (u32 __user *)arg;
- if (!(sisusb = file->private_data))
+ sisusb = file->private_data;
+ if (!sisusb)
return -ENODEV;
mutex_lock(&sisusb->lock);
@@ -3084,7 +3094,8 @@ static int sisusb_probe(struct usb_interface *intf,
dev->devnum);
/* Allocate memory for our private */
- if (!(sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL))) {
+ sisusb = kzalloc(sizeof(*sisusb), GFP_KERNEL);
+ if (!sisusb) {
dev_err(&dev->dev, "Failed to allocate memory for private data\n");
return -ENOMEM;
}
@@ -3093,7 +3104,8 @@ static int sisusb_probe(struct usb_interface *intf,
mutex_init(&(sisusb->lock));
/* Register device */
- if ((retval = usb_register_dev(intf, &usb_sisusb_class))) {
+ retval = usb_register_dev(intf, &usb_sisusb_class);
+ if (retval) {
dev_err(&sisusb->sisusb_dev->dev, "Failed to get a minor for device %d\n",
dev->devnum);
retval = -ENODEV;
@@ -3214,7 +3226,8 @@ static void sisusb_disconnect(struct usb_interface *intf)
struct sisusb_usb_data *sisusb;
/* This should *not* happen */
- if (!(sisusb = usb_get_intfdata(intf)))
+ sisusb = usb_get_intfdata(intf);
+ if (!sisusb)
return;
#ifdef INCL_SISUSB_CON
diff --git a/kernel/drivers/usb/misc/sisusbvga/sisusb_con.c b/kernel/drivers/usb/misc/sisusbvga/sisusb_con.c
index a638c4e9a..ace343088 100644
--- a/kernel/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/kernel/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -169,7 +169,8 @@ sisusb_get_sisusb_lock_and_check(unsigned short console)
if (in_atomic())
return NULL;
- if (!(sisusb = sisusb_get_sisusb(console)))
+ sisusb = sisusb_get_sisusb(console);
+ if (!sisusb)
return NULL;
mutex_lock(&sisusb->lock);
@@ -214,7 +215,8 @@ sisusbcon_init(struct vc_data *c, int init)
* are set up/restored.
*/
- if (!(sisusb = sisusb_get_sisusb(c->vc_num)))
+ sisusb = sisusb_get_sisusb(c->vc_num);
+ if (!sisusb)
return;
mutex_lock(&sisusb->lock);
@@ -277,7 +279,8 @@ sisusbcon_deinit(struct vc_data *c)
* and others, ie not under our control.
*/
- if (!(sisusb = sisusb_get_sisusb(c->vc_num)))
+ sisusb = sisusb_get_sisusb(c->vc_num);
+ if (!sisusb)
return;
mutex_lock(&sisusb->lock);
@@ -369,7 +372,8 @@ sisusbcon_putc(struct vc_data *c, int ch, int y, int x)
struct sisusb_usb_data *sisusb;
ssize_t written;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -395,7 +399,8 @@ sisusbcon_putcs(struct vc_data *c, const unsigned short *s,
u16 *dest;
int i;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -433,7 +438,8 @@ sisusbcon_clear(struct vc_data *c, int y, int x, int height, int width)
if (width <= 0 || height <= 0)
return;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -486,7 +492,8 @@ sisusbcon_bmove(struct vc_data *c, int sy, int sx,
if (width <= 0 || height <= 0)
return;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -520,7 +527,8 @@ sisusbcon_switch(struct vc_data *c)
* Returnvalue != 0 naturally means the opposite.
*/
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return 0;
/* sisusb->lock is down */
@@ -569,7 +577,8 @@ sisusbcon_save_screen(struct vc_data *c)
* buffer.
*/
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -602,7 +611,8 @@ sisusbcon_set_palette(struct vc_data *c, unsigned char *table)
if (!CON_IS_VISIBLE(c))
return -EINVAL;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return -EINVAL;
/* sisusb->lock is down */
@@ -637,7 +647,8 @@ sisusbcon_blank(struct vc_data *c, int blank, int mode_switch)
ssize_t written;
int ret = 0;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return 0;
/* sisusb->lock is down */
@@ -721,7 +732,8 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
/* The return value does not seem to be used */
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return 0;
/* sisusb->lock is down */
@@ -779,7 +791,8 @@ sisusbcon_cursor(struct vc_data *c, int mode)
struct sisusb_usb_data *sisusb;
int from, to, baseline;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return;
/* sisusb->lock is down */
@@ -906,7 +919,8 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
if (!lines)
return 1;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return 0;
/* sisusb->lock is down */
@@ -1018,7 +1032,8 @@ sisusbcon_set_origin(struct vc_data *c)
* screenbuffer as the origin.
*/
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return 0;
/* sisusb->lock is down */
@@ -1047,7 +1062,8 @@ sisusbcon_resize(struct vc_data *c, unsigned int newcols, unsigned int newrows,
struct sisusb_usb_data *sisusb;
int fh;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return -ENODEV;
fh = sisusb->current_font_height;
@@ -1286,7 +1302,8 @@ sisusbcon_font_set(struct vc_data *c, struct console_font *font,
if (font->width != 8 || (charcount != 256 && charcount != 512))
return -EINVAL;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return -ENODEV;
/* sisusb->lock is down */
@@ -1326,7 +1343,8 @@ sisusbcon_font_get(struct vc_data *c, struct console_font *font)
{
struct sisusb_usb_data *sisusb;
- if (!(sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num)))
+ sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
+ if (!sisusb)
return -ENODEV;
/* sisusb->lock is down */
diff --git a/kernel/drivers/usb/misc/usb3503.c b/kernel/drivers/usb/misc/usb3503.c
index 64ff5b917..b45cb77c0 100644
--- a/kernel/drivers/usb/misc/usb3503.c
+++ b/kernel/drivers/usb/misc/usb3503.c
@@ -410,7 +410,7 @@ static int __init usb3503_init(void)
{
int err;
- err = i2c_register_driver(THIS_MODULE, &usb3503_i2c_driver);
+ err = i2c_add_driver(&usb3503_i2c_driver);
if (err != 0)
pr_err("usb3503: Failed to register I2C driver: %d\n", err);
diff --git a/kernel/drivers/usb/misc/usbtest.c b/kernel/drivers/usb/misc/usbtest.c
index 0bbafe795..637f3f7cf 100644
--- a/kernel/drivers/usb/misc/usbtest.c
+++ b/kernel/drivers/usb/misc/usbtest.c
@@ -17,6 +17,7 @@
static int override_alt = -1;
module_param_named(alt, override_alt, int, 0644);
MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection");
+static void complicated_callback(struct urb *urb);
/*-------------------------------------------------------------------------*/
@@ -95,6 +96,7 @@ static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
dev_warn(&(tdev)->intf->dev , fmt , ## args)
#define GUARD_BYTE 0xA5
+#define MAX_SGLEN 128
/*-------------------------------------------------------------------------*/
@@ -238,7 +240,8 @@ static struct urb *usbtest_alloc_urb(
unsigned long bytes,
unsigned transfer_flags,
unsigned offset,
- u8 bInterval)
+ u8 bInterval,
+ usb_complete_t complete_fn)
{
struct urb *urb;
@@ -247,10 +250,10 @@ static struct urb *usbtest_alloc_urb(
return urb;
if (bInterval)
- usb_fill_int_urb(urb, udev, pipe, NULL, bytes, simple_callback,
+ usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
NULL, bInterval);
else
- usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback,
+ usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
NULL);
urb->interval = (udev->speed == USB_SPEED_HIGH)
@@ -295,7 +298,17 @@ static struct urb *simple_alloc_urb(
u8 bInterval)
{
return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
- bInterval);
+ bInterval, simple_callback);
+}
+
+static struct urb *complicated_alloc_urb(
+ struct usb_device *udev,
+ int pipe,
+ unsigned long bytes,
+ u8 bInterval)
+{
+ return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
+ bInterval, complicated_callback);
}
static unsigned pattern;
@@ -303,11 +316,20 @@ static unsigned mod_pattern;
module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
-static inline void simple_fill_buf(struct urb *urb)
+static unsigned get_maxpacket(struct usb_device *udev, int pipe)
+{
+ struct usb_host_endpoint *ep;
+
+ ep = usb_pipe_endpoint(udev, pipe);
+ return le16_to_cpup(&ep->desc.wMaxPacketSize);
+}
+
+static void simple_fill_buf(struct urb *urb)
{
unsigned i;
u8 *buf = urb->transfer_buffer;
unsigned len = urb->transfer_buffer_length;
+ unsigned maxpacket;
switch (pattern) {
default:
@@ -316,8 +338,9 @@ static inline void simple_fill_buf(struct urb *urb)
memset(buf, 0, len);
break;
case 1: /* mod63 */
+ maxpacket = get_maxpacket(urb->dev, urb->pipe);
for (i = 0; i < len; i++)
- *buf++ = (u8) (i % 63);
+ *buf++ = (u8) ((i % maxpacket) % 63);
break;
}
}
@@ -349,6 +372,7 @@ static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
u8 expected;
u8 *buf = urb->transfer_buffer;
unsigned len = urb->actual_length;
+ unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
int ret = check_guard_bytes(tdev, urb);
if (ret)
@@ -366,7 +390,7 @@ static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
* with set_interface or set_config.
*/
case 1: /* mod63 */
- expected = i % 63;
+ expected = (i % maxpacket) % 63;
break;
/* always fail unsupported patterns */
default:
@@ -478,11 +502,13 @@ static void free_sglist(struct scatterlist *sg, int nents)
}
static struct scatterlist *
-alloc_sglist(int nents, int max, int vary)
+alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
{
struct scatterlist *sg;
unsigned i;
unsigned size = max;
+ unsigned maxpacket =
+ get_maxpacket(interface_to_usbdev(dev->intf), pipe);
if (max == 0)
return NULL;
@@ -511,7 +537,7 @@ alloc_sglist(int nents, int max, int vary)
break;
case 1:
for (j = 0; j < size; j++)
- *buf++ = (u8) (j % 63);
+ *buf++ = (u8) ((j % maxpacket) % 63);
break;
}
@@ -1719,7 +1745,7 @@ static int ctrl_out(struct usbtest_dev *dev,
for (i = 0; i < count; i++) {
/* write patterned data */
for (j = 0; j < len; j++)
- buf[j] = i + j;
+ buf[j] = (u8)(i + j);
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
@@ -1749,9 +1775,9 @@ static int ctrl_out(struct usbtest_dev *dev,
/* fail if we can't verify */
for (j = 0; j < len; j++) {
- if (buf[j] != (u8) (i + j)) {
+ if (buf[j] != (u8)(i + j)) {
ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
- j, buf[j], (u8) i + j);
+ j, buf[j], (u8)(i + j));
retval = -EBADMSG;
break;
}
@@ -1781,12 +1807,12 @@ static int ctrl_out(struct usbtest_dev *dev,
/*-------------------------------------------------------------------------*/
-/* ISO tests ... mimics common usage
+/* ISO/BULK tests ... mimics common usage
* - buffer length is split into N packets (mostly maxpacket sized)
* - multi-buffers according to sglen
*/
-struct iso_context {
+struct transfer_context {
unsigned count;
unsigned pending;
spinlock_t lock;
@@ -1795,11 +1821,12 @@ struct iso_context {
unsigned long errors;
unsigned long packet_count;
struct usbtest_dev *dev;
+ bool is_iso;
};
-static void iso_callback(struct urb *urb)
+static void complicated_callback(struct urb *urb)
{
- struct iso_context *ctx = urb->context;
+ struct transfer_context *ctx = urb->context;
spin_lock(&ctx->lock);
ctx->count--;
@@ -1808,7 +1835,7 @@ static void iso_callback(struct urb *urb)
if (urb->error_count > 0)
ctx->errors += urb->error_count;
else if (urb->status != 0)
- ctx->errors += urb->number_of_packets;
+ ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
else if (urb->actual_length != urb->transfer_buffer_length)
ctx->errors++;
else if (check_guard_bytes(ctx->dev, urb) != 0)
@@ -1895,7 +1922,7 @@ static struct urb *iso_alloc_urb(
urb->iso_frame_desc[i].offset = maxp * i;
}
- urb->complete = iso_callback;
+ urb->complete = complicated_callback;
/* urb->context = SET BY CALLER */
urb->interval = 1 << (desc->bInterval - 1);
urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
@@ -1903,36 +1930,33 @@ static struct urb *iso_alloc_urb(
}
static int
-test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
+test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
{
- struct iso_context context;
+ struct transfer_context context;
struct usb_device *udev;
unsigned i;
unsigned long packets = 0;
int status = 0;
- struct urb *urbs[10]; /* FIXME no limit */
-
- if (param->sglen > 10)
- return -EDOM;
+ struct urb *urbs[param->sglen];
memset(&context, 0, sizeof(context));
context.count = param->iterations * param->sglen;
context.dev = dev;
+ context.is_iso = !!desc;
init_completion(&context.done);
spin_lock_init(&context.lock);
- memset(urbs, 0, sizeof(urbs));
udev = testdev_to_usbdev(dev);
- dev_info(&dev->intf->dev,
- "... iso period %d %sframes, wMaxPacket %04x\n",
- 1 << (desc->bInterval - 1),
- (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
- usb_endpoint_maxp(desc));
for (i = 0; i < param->sglen; i++) {
- urbs[i] = iso_alloc_urb(udev, pipe, desc,
+ if (context.is_iso)
+ urbs[i] = iso_alloc_urb(udev, pipe, desc,
param->length, offset);
+ else
+ urbs[i] = complicated_alloc_urb(udev, pipe,
+ param->length, 0);
+
if (!urbs[i]) {
status = -ENOMEM;
goto fail;
@@ -1941,11 +1965,21 @@ test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
urbs[i]->context = &context;
}
packets *= param->iterations;
- dev_info(&dev->intf->dev,
- "... total %lu msec (%lu packets)\n",
- (packets * (1 << (desc->bInterval - 1)))
- / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
- packets);
+
+ if (context.is_iso) {
+ dev_info(&dev->intf->dev,
+ "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
+ 1 << (desc->bInterval - 1),
+ (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
+ usb_endpoint_maxp(desc) & 0x7ff,
+ 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
+
+ dev_info(&dev->intf->dev,
+ "total %lu msec (%lu packets)\n",
+ (packets * (1 << (desc->bInterval - 1)))
+ / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
+ packets);
+ }
spin_lock_irq(&context.lock);
for (i = 0; i < param->sglen; i++) {
@@ -1982,7 +2016,8 @@ test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
;
else if (context.submit_error)
status = -EACCES;
- else if (context.errors > context.packet_count / 10)
+ else if (context.errors >
+ (context.is_iso ? context.packet_count / 10 : 0))
status = -EIO;
return status;
@@ -2003,8 +2038,8 @@ static int test_unaligned_bulk(
const char *label)
{
int retval;
- struct urb *urb = usbtest_alloc_urb(
- testdev_to_usbdev(tdev), pipe, length, transfer_flags, 1, 0);
+ struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
+ pipe, length, transfer_flags, 1, 0, simple_callback);
if (!urb)
return -ENOMEM;
@@ -2060,6 +2095,9 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
if (param->iterations <= 0)
return -EINVAL;
+ if (param->sglen > MAX_SGLEN)
+ return -EINVAL;
+
if (mutex_lock_interruptible(&dev->lock))
return -ERESTARTSYS;
@@ -2175,7 +2213,8 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 5: write %d sglists %d entries of %d bytes\n",
param->iterations,
param->sglen, param->length);
- sg = alloc_sglist(param->sglen, param->length, 0);
+ sg = alloc_sglist(param->sglen, param->length,
+ 0, dev, dev->out_pipe);
if (!sg) {
retval = -ENOMEM;
break;
@@ -2193,7 +2232,8 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 6: read %d sglists %d entries of %d bytes\n",
param->iterations,
param->sglen, param->length);
- sg = alloc_sglist(param->sglen, param->length, 0);
+ sg = alloc_sglist(param->sglen, param->length,
+ 0, dev, dev->in_pipe);
if (!sg) {
retval = -ENOMEM;
break;
@@ -2210,7 +2250,8 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
param->vary, param->iterations,
param->sglen, param->length);
- sg = alloc_sglist(param->sglen, param->length, param->vary);
+ sg = alloc_sglist(param->sglen, param->length,
+ param->vary, dev, dev->out_pipe);
if (!sg) {
retval = -ENOMEM;
break;
@@ -2227,7 +2268,8 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
param->vary, param->iterations,
param->sglen, param->length);
- sg = alloc_sglist(param->sglen, param->length, param->vary);
+ sg = alloc_sglist(param->sglen, param->length,
+ param->vary, dev, dev->in_pipe);
if (!sg) {
retval = -ENOMEM;
break;
@@ -2324,7 +2366,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
param->iterations,
param->sglen, param->length);
/* FIRMWARE: iso sink */
- retval = test_iso_queue(dev, param,
+ retval = test_queue(dev, param,
dev->out_iso_pipe, dev->iso_out, 0);
break;
@@ -2337,7 +2379,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
param->iterations,
param->sglen, param->length);
/* FIRMWARE: iso source */
- retval = test_iso_queue(dev, param,
+ retval = test_queue(dev, param,
dev->in_iso_pipe, dev->iso_in, 0);
break;
@@ -2418,7 +2460,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 22: write %d iso odd, %d entries of %d bytes\n",
param->iterations,
param->sglen, param->length);
- retval = test_iso_queue(dev, param,
+ retval = test_queue(dev, param,
dev->out_iso_pipe, dev->iso_out, 1);
break;
@@ -2429,7 +2471,7 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
"TEST 23: read %d iso odd, %d entries of %d bytes\n",
param->iterations,
param->sglen, param->length);
- retval = test_iso_queue(dev, param,
+ retval = test_queue(dev, param,
dev->in_iso_pipe, dev->iso_in, 1);
break;
@@ -2486,6 +2528,25 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
simple_free_urb(urb);
break;
+ case 27:
+ /* We do performance test, so ignore data compare */
+ if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
+ break;
+ dev_info(&intf->dev,
+ "TEST 27: bulk write %dMbytes\n", (param->iterations *
+ param->sglen * param->length) / (1024 * 1024));
+ retval = test_queue(dev, param,
+ dev->out_pipe, NULL, 0);
+ break;
+ case 28:
+ if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
+ break;
+ dev_info(&intf->dev,
+ "TEST 28: bulk read %dMbytes\n", (param->iterations *
+ param->sglen * param->length) / (1024 * 1024));
+ retval = test_queue(dev, param,
+ dev->in_pipe, NULL, 0);
+ break;
}
do_gettimeofday(&param->duration);
param->duration.tv_sec -= start.tv_sec;
diff --git a/kernel/drivers/usb/misc/uss720.c b/kernel/drivers/usb/misc/uss720.c
index 588d62a73..bbd029c9c 100644
--- a/kernel/drivers/usb/misc/uss720.c
+++ b/kernel/drivers/usb/misc/uss720.c
@@ -714,7 +714,8 @@ static int uss720_probe(struct usb_interface *intf,
/*
* Allocate parport interface
*/
- if (!(priv = kzalloc(sizeof(struct parport_uss720_private), GFP_KERNEL))) {
+ priv = kzalloc(sizeof(struct parport_uss720_private), GFP_KERNEL);
+ if (!priv) {
usb_put_dev(usbdev);
return -ENOMEM;
}
@@ -723,7 +724,8 @@ static int uss720_probe(struct usb_interface *intf,
kref_init(&priv->ref_count);
spin_lock_init(&priv->asynclock);
INIT_LIST_HEAD(&priv->asynclist);
- if (!(pp = parport_register_port(0, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &parport_uss720_ops))) {
+ pp = parport_register_port(0, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &parport_uss720_ops);
+ if (!pp) {
printk(KERN_WARNING "uss720: could not register parport\n");
goto probe_abort;
}
diff --git a/kernel/drivers/usb/mon/mon_bin.c b/kernel/drivers/usb/mon/mon_bin.c
index 9a62e89d6..3598f1a62 100644
--- a/kernel/drivers/usb/mon/mon_bin.c
+++ b/kernel/drivers/usb/mon/mon_bin.c
@@ -675,7 +675,8 @@ static int mon_bin_open(struct inode *inode, struct file *file)
int rc;
mutex_lock(&mon_lock);
- if ((mbus = mon_bus_lookup(iminor(inode))) == NULL) {
+ mbus = mon_bus_lookup(iminor(inode));
+ if (mbus == NULL) {
mutex_unlock(&mon_lock);
return -ENODEV;
}
@@ -1018,8 +1019,8 @@ static long mon_bin_ioctl(struct file *file, unsigned int cmd, unsigned long arg
return -EINVAL;
size = CHUNK_ALIGN(arg);
- if ((vec = kzalloc(sizeof(struct mon_pgmap) * (size/CHUNK_SIZE),
- GFP_KERNEL)) == NULL) {
+ vec = kzalloc(sizeof(struct mon_pgmap) * (size / CHUNK_SIZE), GFP_KERNEL);
+ if (vec == NULL) {
ret = -ENOMEM;
break;
}
diff --git a/kernel/drivers/usb/mon/mon_main.c b/kernel/drivers/usb/mon/mon_main.c
index 104051199..f7c292f48 100644
--- a/kernel/drivers/usb/mon/mon_main.c
+++ b/kernel/drivers/usb/mon/mon_main.c
@@ -96,7 +96,8 @@ static void mon_submit(struct usb_bus *ubus, struct urb *urb)
{
struct mon_bus *mbus;
- if ((mbus = ubus->mon_bus) != NULL)
+ mbus = ubus->mon_bus;
+ if (mbus != NULL)
mon_bus_submit(mbus, urb);
mon_bus_submit(&mon_bus0, urb);
}
@@ -122,7 +123,8 @@ static void mon_submit_error(struct usb_bus *ubus, struct urb *urb, int error)
{
struct mon_bus *mbus;
- if ((mbus = ubus->mon_bus) != NULL)
+ mbus = ubus->mon_bus;
+ if (mbus != NULL)
mon_bus_submit_error(mbus, urb, error);
mon_bus_submit_error(&mon_bus0, urb, error);
}
@@ -148,7 +150,8 @@ static void mon_complete(struct usb_bus *ubus, struct urb *urb, int status)
{
struct mon_bus *mbus;
- if ((mbus = ubus->mon_bus) != NULL)
+ mbus = ubus->mon_bus;
+ if (mbus != NULL)
mon_bus_complete(mbus, urb, status);
mon_bus_complete(&mon_bus0, urb, status);
}
@@ -280,7 +283,8 @@ static void mon_bus_init(struct usb_bus *ubus)
{
struct mon_bus *mbus;
- if ((mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL)) == NULL)
+ mbus = kzalloc(sizeof(struct mon_bus), GFP_KERNEL);
+ if (mbus == NULL)
goto err_alloc;
kref_init(&mbus->ref);
spin_lock_init(&mbus->lock);
diff --git a/kernel/drivers/usb/mon/mon_stat.c b/kernel/drivers/usb/mon/mon_stat.c
index ebd6189a5..5388a339c 100644
--- a/kernel/drivers/usb/mon/mon_stat.c
+++ b/kernel/drivers/usb/mon/mon_stat.c
@@ -28,7 +28,8 @@ static int mon_stat_open(struct inode *inode, struct file *file)
struct mon_bus *mbus;
struct snap *sp;
- if ((sp = kmalloc(sizeof(struct snap), GFP_KERNEL)) == NULL)
+ sp = kmalloc(sizeof(struct snap), GFP_KERNEL);
+ if (sp == NULL)
return -ENOMEM;
mbus = inode->i_private;
diff --git a/kernel/drivers/usb/musb/Kconfig b/kernel/drivers/usb/musb/Kconfig
index 39db8b603..45c83baf6 100644
--- a/kernel/drivers/usb/musb/Kconfig
+++ b/kernel/drivers/usb/musb/Kconfig
@@ -5,7 +5,7 @@
# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
config USB_MUSB_HDRC
- tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
+ tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, AW, ...)'
depends on (USB || USB_GADGET)
help
Say Y here if your system has a dual role high speed USB
@@ -20,6 +20,8 @@ config USB_MUSB_HDRC
Analog Devices parts using this IP include Blackfin BF54x,
BF525 and BF527.
+ Allwinner SoCs using this IP include A10, A13, A20, ...
+
If you do not know what this is, please say N.
To compile this driver as a module, choose M here; the
@@ -60,6 +62,15 @@ endchoice
comment "Platform Glue Layer"
+config USB_MUSB_SUNXI
+ tristate "Allwinner (sunxi)"
+ depends on ARCH_SUNXI
+ depends on NOP_USB_XCEIV
+ depends on PHY_SUN4I_USB
+ depends on EXTCON
+ depends on GENERIC_PHY
+ select SUNXI_SRAM
+
config USB_MUSB_DAVINCI
tristate "DaVinci"
depends on ARCH_DAVINCI_DMx
@@ -113,19 +124,20 @@ config USB_MUSB_JZ4740
config USB_MUSB_AM335X_CHILD
tristate
-choice
- prompt 'MUSB DMA mode'
- default MUSB_PIO_ONLY if ARCH_MULTIPLATFORM || USB_MUSB_JZ4740
- default USB_UX500_DMA if USB_MUSB_UX500
- default USB_INVENTRA_DMA if USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN
- default USB_TI_CPPI_DMA if USB_MUSB_DAVINCI
- default USB_TUSB_OMAP_DMA if USB_MUSB_TUSB6010
- default MUSB_PIO_ONLY if USB_MUSB_TUSB6010 || USB_MUSB_DA8XX || USB_MUSB_AM35X \
- || USB_MUSB_DSPS
+comment "MUSB DMA mode"
+
+config MUSB_PIO_ONLY
+ bool 'Disable DMA (always use PIO)'
help
- Unfortunately, only one option can be enabled here. Ideally one
- should be able to build all these drivers into one kernel to
- allow using DMA on multiplatform kernels.
+ All data is copied between memory and FIFO by the CPU.
+ DMA controllers are ignored.
+
+ Do not choose this unless DMA support for your SOC or board
+ is unavailable (or unstable). When DMA is enabled at compile time,
+ you can still disable it at run time using the "use_dma=n" module
+ parameter.
+
+if !MUSB_PIO_ONLY
config USB_UX500_DMA
bool 'ST Ericsson Ux500'
@@ -147,7 +159,7 @@ config USB_TI_CPPI_DMA
config USB_TI_CPPI41_DMA
bool 'TI CPPI 4.1 (AM335x)'
- depends on ARCH_OMAP
+ depends on ARCH_OMAP && DMADEVICES
select TI_CPPI41
config USB_TUSB_OMAP_DMA
@@ -157,17 +169,6 @@ config USB_TUSB_OMAP_DMA
help
Enable DMA transfers on TUSB 6010 when OMAP DMA is available.
-config MUSB_PIO_ONLY
- bool 'Disable DMA (always use PIO)'
- help
- All data is copied between memory and FIFO by the CPU.
- DMA controllers are ignored.
-
- Do not choose this unless DMA support for your SOC or board
- is unavailable (or unstable). When DMA is enabled at compile time,
- you can still disable it at run time using the "use_dma=n" module
- parameter.
-
-endchoice
+endif # !MUSB_PIO_ONLY
endif # USB_MUSB_HDRC
diff --git a/kernel/drivers/usb/musb/Makefile b/kernel/drivers/usb/musb/Makefile
index ba495018b..f95befe18 100644
--- a/kernel/drivers/usb/musb/Makefile
+++ b/kernel/drivers/usb/musb/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o
obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o
obj-$(CONFIG_USB_MUSB_UX500) += ux500.o
obj-$(CONFIG_USB_MUSB_JZ4740) += jz4740.o
+obj-$(CONFIG_USB_MUSB_SUNXI) += sunxi.o
obj-$(CONFIG_USB_MUSB_AM335X_CHILD) += musb_am335x.o
diff --git a/kernel/drivers/usb/musb/am35x.c b/kernel/drivers/usb/musb/am35x.c
index 220fd4d3b..c41fe588d 100644
--- a/kernel/drivers/usb/musb/am35x.c
+++ b/kernel/drivers/usb/musb/am35x.c
@@ -438,11 +438,15 @@ static void am35x_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
static const struct musb_platform_ops am35x_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP,
.init = am35x_musb_init,
.exit = am35x_musb_exit,
.read_fifo = am35x_read_fifo,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.enable = am35x_musb_enable,
.disable = am35x_musb_disable,
@@ -565,7 +569,7 @@ static int am35x_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int am35x_suspend(struct device *dev)
{
struct am35x_glue *glue = dev_get_drvdata(dev);
diff --git a/kernel/drivers/usb/musb/blackfin.c b/kernel/drivers/usb/musb/blackfin.c
index 6123b748d..310238c6b 100644
--- a/kernel/drivers/usb/musb/blackfin.c
+++ b/kernel/drivers/usb/musb/blackfin.c
@@ -465,6 +465,7 @@ static int bfin_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops bfin_ops = {
+ .quirks = MUSB_DMA_INVENTRA,
.init = bfin_musb_init,
.exit = bfin_musb_exit,
@@ -477,6 +478,10 @@ static const struct musb_platform_ops bfin_ops = {
.fifo_mode = 2,
.read_fifo = bfin_read_fifo,
.write_fifo = bfin_write_fifo,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.enable = bfin_musb_enable,
.disable = bfin_musb_disable,
diff --git a/kernel/drivers/usb/musb/cppi_dma.c b/kernel/drivers/usb/musb/cppi_dma.c
index 904fb85d8..cc134109b 100644
--- a/kernel/drivers/usb/musb/cppi_dma.c
+++ b/kernel/drivers/usb/musb/cppi_dma.c
@@ -1297,7 +1297,8 @@ irqreturn_t cppi_interrupt(int irq, void *dev_id)
EXPORT_SYMBOL_GPL(cppi_interrupt);
/* Instantiate a software object representing a DMA controller. */
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mregs)
+struct dma_controller *
+cppi_dma_controller_create(struct musb *musb, void __iomem *mregs)
{
struct cppi *controller;
struct device *dev = musb->controller;
@@ -1334,7 +1335,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr
if (irq > 0) {
if (request_irq(irq, cppi_interrupt, 0, "cppi-dma", musb)) {
dev_err(dev, "request_irq %d failed!\n", irq);
- dma_controller_destroy(&controller->controller);
+ musb_dma_controller_destroy(&controller->controller);
return NULL;
}
controller->irq = irq;
@@ -1343,11 +1344,12 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *mr
cppi_controller_start(controller);
return &controller->controller;
}
+EXPORT_SYMBOL_GPL(cppi_dma_controller_create);
/*
* Destroy a previously-instantiated DMA controller.
*/
-void dma_controller_destroy(struct dma_controller *c)
+void cppi_dma_controller_destroy(struct dma_controller *c)
{
struct cppi *cppi;
@@ -1363,6 +1365,7 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(cppi);
}
+EXPORT_SYMBOL_GPL(cppi_dma_controller_destroy);
/*
* Context: controller irqlocked, endpoint selected
diff --git a/kernel/drivers/usb/musb/da8xx.c b/kernel/drivers/usb/musb/da8xx.c
index 9a9c82a4d..b03d3b867 100644
--- a/kernel/drivers/usb/musb/da8xx.c
+++ b/kernel/drivers/usb/musb/da8xx.c
@@ -458,11 +458,15 @@ static int da8xx_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops da8xx_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_CPPI | MUSB_INDEXED_EP,
.init = da8xx_musb_init,
.exit = da8xx_musb_exit,
.fifo_mode = 2,
+#ifdef CONFIG_USB_TI_CPPI_DMA
+ .dma_init = cppi_dma_controller_create,
+ .dma_exit = cppi_dma_controller_destroy,
+#endif
.enable = da8xx_musb_enable,
.disable = da8xx_musb_disable,
diff --git a/kernel/drivers/usb/musb/davinci.c b/kernel/drivers/usb/musb/davinci.c
index 3c1d9b211..cee61a516 100644
--- a/kernel/drivers/usb/musb/davinci.c
+++ b/kernel/drivers/usb/musb/davinci.c
@@ -284,7 +284,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
* mask, state, "vector", and EOI registers.
*/
cppi = container_of(musb->dma_controller, struct cppi, controller);
- if (is_cppi_enabled() && musb->dma_controller && !cppi->irq)
+ if (is_cppi_enabled(musb) && musb->dma_controller && !cppi->irq)
retval = cppi_interrupt(irq, __hci);
/* ack and handle non-CPPI interrupts */
@@ -491,9 +491,14 @@ static int davinci_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops davinci_ops = {
+ .quirks = MUSB_DMA_CPPI,
.init = davinci_musb_init,
.exit = davinci_musb_exit,
+#ifdef CONFIG_USB_TI_CPPI_DMA
+ .dma_init = cppi_dma_controller_create,
+ .dma_exit = cppi_dma_controller_destroy,
+#endif
.enable = davinci_musb_enable,
.disable = davinci_musb_disable,
diff --git a/kernel/drivers/usb/musb/jz4740.c b/kernel/drivers/usb/musb/jz4740.c
index bb7b26325..5e5a8fa00 100644
--- a/kernel/drivers/usb/musb/jz4740.c
+++ b/kernel/drivers/usb/musb/jz4740.c
@@ -105,8 +105,12 @@ static int jz4740_musb_exit(struct musb *musb)
return 0;
}
+/*
+ * DMA has not been confirmed to work with CONFIG_USB_INVENTRA_DMA,
+ * so let's not set up the dma function pointers yet.
+ */
static const struct musb_platform_ops jz4740_musb_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP,
.fifo_mode = 2,
.init = jz4740_musb_init,
.exit = jz4740_musb_exit,
diff --git a/kernel/drivers/usb/musb/musb_core.c b/kernel/drivers/usb/musb/musb_core.c
index 6dca3d794..ee9ff7028 100644
--- a/kernel/drivers/usb/musb/musb_core.c
+++ b/kernel/drivers/usb/musb/musb_core.c
@@ -132,7 +132,7 @@ static inline struct musb *dev_to_musb(struct device *dev)
/*-------------------------------------------------------------------------*/
#ifndef CONFIG_BLACKFIN
-static int musb_ulpi_read(struct usb_phy *phy, u32 offset)
+static int musb_ulpi_read(struct usb_phy *phy, u32 reg)
{
void __iomem *addr = phy->io_priv;
int i = 0;
@@ -151,7 +151,7 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset)
* ULPICarKitControlDisableUTMI after clearing POWER_SUSPENDM.
*/
- musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)offset);
+ musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)reg);
musb_writeb(addr, MUSB_ULPI_REG_CONTROL,
MUSB_ULPI_REG_REQ | MUSB_ULPI_RDN_WR);
@@ -176,7 +176,7 @@ out:
return ret;
}
-static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data)
+static int musb_ulpi_write(struct usb_phy *phy, u32 val, u32 reg)
{
void __iomem *addr = phy->io_priv;
int i = 0;
@@ -191,8 +191,8 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data)
power &= ~MUSB_POWER_SUSPENDM;
musb_writeb(addr, MUSB_POWER, power);
- musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)offset);
- musb_writeb(addr, MUSB_ULPI_REG_DATA, (u8)data);
+ musb_writeb(addr, MUSB_ULPI_REG_ADDR, (u8)reg);
+ musb_writeb(addr, MUSB_ULPI_REG_DATA, (u8)val);
musb_writeb(addr, MUSB_ULPI_REG_CONTROL, MUSB_ULPI_REG_REQ);
while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL)
@@ -251,6 +251,11 @@ static u32 musb_indexed_ep_offset(u8 epnum, u16 offset)
return 0x10 + offset;
}
+static u32 musb_default_busctl_offset(u8 epnum, u16 offset)
+{
+ return 0x80 + (0x08 * epnum) + offset;
+}
+
static u8 musb_default_readb(const void __iomem *addr, unsigned offset)
{
return __raw_readb(addr + offset);
@@ -309,7 +314,7 @@ static void musb_default_write_fifo(struct musb_hw_ep *hw_ep, u16 len,
index += len & ~0x03;
}
if (len & 0x02) {
- musb_writew(fifo, 0, *(u16 *)&src[index]);
+ __raw_writew(*(u16 *)&src[index], fifo);
index += 2;
}
} else {
@@ -319,7 +324,7 @@ static void musb_default_write_fifo(struct musb_hw_ep *hw_ep, u16 len,
}
}
if (len & 0x01)
- musb_writeb(fifo, 0, src[index]);
+ __raw_writeb(src[index], fifo);
} else {
/* byte aligned */
iowrite8_rep(fifo, src, len);
@@ -351,7 +356,7 @@ static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
index = len & ~0x03;
}
if (len & 0x02) {
- *(u16 *)&dst[index] = musb_readw(fifo, 0);
+ *(u16 *)&dst[index] = __raw_readw(fifo);
index += 2;
}
} else {
@@ -361,7 +366,7 @@ static void musb_default_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
}
if (len & 0x01)
- dst[index] = musb_readb(fifo, 0);
+ dst[index] = __raw_readb(fifo);
} else {
/* byte aligned */
ioread8_rep(fifo, dst, len);
@@ -389,6 +394,15 @@ EXPORT_SYMBOL_GPL(musb_readl);
void (*musb_writel)(void __iomem *addr, unsigned offset, u32 data);
EXPORT_SYMBOL_GPL(musb_writel);
+#ifndef CONFIG_MUSB_PIO_ONLY
+struct dma_controller *
+(*musb_dma_controller_create)(struct musb *musb, void __iomem *base);
+EXPORT_SYMBOL(musb_dma_controller_create);
+
+void (*musb_dma_controller_destroy)(struct dma_controller *c);
+EXPORT_SYMBOL(musb_dma_controller_destroy);
+#endif
+
/*
* New style IO functions
*/
@@ -1014,18 +1028,22 @@ void musb_start(struct musb *musb)
{
void __iomem *regs = musb->mregs;
u8 devctl = musb_readb(regs, MUSB_DEVCTL);
+ u8 power;
dev_dbg(musb->controller, "<== devctl %02x\n", devctl);
musb_enable_interrupts(musb);
musb_writeb(regs, MUSB_TESTMODE, 0);
- /* put into basic highspeed mode and start session */
- musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
- | MUSB_POWER_HSENAB
- /* ENSUSPEND wedges tusb */
- /* | MUSB_POWER_ENSUSPEND */
- );
+ power = MUSB_POWER_ISOUPDATE;
+ /*
+ * treating UNKNOWN as unspecified maximum speed, in which case
+ * we will default to high-speed.
+ */
+ if (musb->config->maximum_speed == USB_SPEED_HIGH ||
+ musb->config->maximum_speed == USB_SPEED_UNKNOWN)
+ power |= MUSB_POWER_HSENAB;
+ musb_writeb(regs, MUSB_POWER, power);
musb->is_active = 0;
devctl = musb_readb(regs, MUSB_DEVCTL);
@@ -1037,6 +1055,7 @@ void musb_start(struct musb *musb)
* (c) peripheral initiates, using SRP
*/
if (musb->port_mode != MUSB_PORT_MODE_HOST &&
+ musb->xceiv->otg->state != OTG_STATE_A_WAIT_BCON &&
(devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
musb->is_active = 1;
} else {
@@ -1535,7 +1554,6 @@ static int musb_core_init(u16 musb_type, struct musb *musb)
#endif
hw_ep->regs = musb->io.ep_offset(i, 0) + mbase;
- hw_ep->target_regs = musb_read_target_reg_base(i, mbase);
hw_ep->rx_reinit = 1;
hw_ep->tx_reinit = 1;
@@ -1650,7 +1668,7 @@ EXPORT_SYMBOL_GPL(musb_interrupt);
static bool use_dma = 1;
/* "modprobe ... use_dma=0" etc */
-module_param(use_dma, bool, 0);
+module_param(use_dma, bool, 0644);
MODULE_PARM_DESC(use_dma, "enable/disable use of DMA");
void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
@@ -1658,15 +1676,13 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
/* called with controller lock already held */
if (!epnum) {
-#ifndef CONFIG_USB_TUSB_OMAP_DMA
- if (!is_cppi_enabled()) {
+ if (!is_cppi_enabled(musb)) {
/* endpoint 0 */
if (is_host_active(musb))
musb_h_ep0_irq(musb);
else
musb_g_ep0_irq(musb);
}
-#endif
} else {
/* endpoints 1..15 */
if (transmit) {
@@ -1759,13 +1775,20 @@ musb_vbus_show(struct device *dev, struct device_attribute *attr, char *buf)
unsigned long flags;
unsigned long val;
int vbus;
+ u8 devctl;
spin_lock_irqsave(&musb->lock, flags);
val = musb->a_wait_bcon;
- /* FIXME get_vbus_status() is normally #defined as false...
- * and is effectively TUSB-specific.
- */
vbus = musb_platform_get_vbus_status(musb);
+ if (vbus < 0) {
+ /* Use default MUSB method by means of DEVCTL register */
+ devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ if ((devctl & MUSB_DEVCTL_VBUS)
+ == (3 << MUSB_DEVCTL_VBUS_SHIFT))
+ vbus = 1;
+ else
+ vbus = 0;
+ }
spin_unlock_irqrestore(&musb->lock, flags);
return sprintf(buf, "Vbus %s, timeout %lu msec\n",
@@ -1994,7 +2017,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
/* We need musb_read/write functions initialized for PM */
pm_runtime_use_autosuspend(musb->controller);
pm_runtime_set_autosuspend_delay(musb->controller, 200);
- pm_runtime_irq_safe(musb->controller);
pm_runtime_enable(musb->controller);
/* The musb_platform_init() call:
@@ -2029,6 +2051,11 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb->io.ep_offset = musb_flat_ep_offset;
musb->io.ep_select = musb_flat_ep_select;
}
+ /* And override them with platform specific ops if specified. */
+ if (musb->ops->ep_offset)
+ musb->io.ep_offset = musb->ops->ep_offset;
+ if (musb->ops->ep_select)
+ musb->io.ep_select = musb->ops->ep_select;
/* At least tusb6010 has its own offsets */
if (musb->ops->ep_offset)
@@ -2046,6 +2073,11 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
else
musb->io.fifo_offset = musb_default_fifo_offset;
+ if (musb->ops->busctl_offset)
+ musb->io.busctl_offset = musb->ops->busctl_offset;
+ else
+ musb->io.busctl_offset = musb_default_busctl_offset;
+
if (musb->ops->readb)
musb_readb = musb->ops->readb;
if (musb->ops->writeb)
@@ -2059,6 +2091,16 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (musb->ops->writel)
musb_writel = musb->ops->writel;
+#ifndef CONFIG_MUSB_PIO_ONLY
+ if (!musb->ops->dma_init || !musb->ops->dma_exit) {
+ dev_err(dev, "DMA controller not set\n");
+ status = -ENODEV;
+ goto fail2;
+ }
+ musb_dma_controller_create = musb->ops->dma_init;
+ musb_dma_controller_destroy = musb->ops->dma_exit;
+#endif
+
if (musb->ops->read_fifo)
musb->io.read_fifo = musb->ops->read_fifo;
else
@@ -2078,7 +2120,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_get_sync(musb->controller);
if (use_dma && dev->dma_mask) {
- musb->dma_controller = dma_controller_create(musb, musb->mregs);
+ musb->dma_controller =
+ musb_dma_controller_create(musb, musb->mregs);
if (IS_ERR(musb->dma_controller)) {
status = PTR_ERR(musb->dma_controller);
goto fail2_5;
@@ -2175,6 +2218,12 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
pm_runtime_put(musb->controller);
+ /*
+ * For why this is currently needed, see commit 3e43a0725637
+ * ("usb: musb: core: add pm_runtime_irq_safe()")
+ */
+ pm_runtime_irq_safe(musb->controller);
+
return 0;
fail5:
@@ -2189,7 +2238,7 @@ fail3:
cancel_delayed_work_sync(&musb->finish_resume_work);
cancel_delayed_work_sync(&musb->deassert_reset_work);
if (musb->dma_controller)
- dma_controller_destroy(musb->dma_controller);
+ musb_dma_controller_destroy(musb->dma_controller);
fail2_5:
pm_runtime_put_sync(musb->controller);
@@ -2248,7 +2297,7 @@ static int musb_remove(struct platform_device *pdev)
musb_shutdown(pdev);
if (musb->dma_controller)
- dma_controller_destroy(musb->dma_controller);
+ musb_dma_controller_destroy(musb->dma_controller);
cancel_work_sync(&musb->irq_work);
cancel_delayed_work_sync(&musb->finish_resume_work);
@@ -2316,18 +2365,18 @@ static void musb_save_context(struct musb *musb)
musb_readb(epio, MUSB_RXINTERVAL);
musb->context.index_regs[i].txfunaddr =
- musb_read_txfunaddr(musb_base, i);
+ musb_read_txfunaddr(musb, i);
musb->context.index_regs[i].txhubaddr =
- musb_read_txhubaddr(musb_base, i);
+ musb_read_txhubaddr(musb, i);
musb->context.index_regs[i].txhubport =
- musb_read_txhubport(musb_base, i);
+ musb_read_txhubport(musb, i);
musb->context.index_regs[i].rxfunaddr =
- musb_read_rxfunaddr(musb_base, i);
+ musb_read_rxfunaddr(musb, i);
musb->context.index_regs[i].rxhubaddr =
- musb_read_rxhubaddr(musb_base, i);
+ musb_read_rxhubaddr(musb, i);
musb->context.index_regs[i].rxhubport =
- musb_read_rxhubport(musb_base, i);
+ musb_read_rxhubport(musb, i);
}
}
@@ -2335,7 +2384,6 @@ static void musb_restore_context(struct musb *musb)
{
int i;
void __iomem *musb_base = musb->mregs;
- void __iomem *ep_target_regs;
void __iomem *epio;
u8 power;
@@ -2396,21 +2444,18 @@ static void musb_restore_context(struct musb *musb)
musb_writeb(epio, MUSB_RXINTERVAL,
musb->context.index_regs[i].rxinterval);
- musb_write_txfunaddr(musb_base, i,
+ musb_write_txfunaddr(musb, i,
musb->context.index_regs[i].txfunaddr);
- musb_write_txhubaddr(musb_base, i,
+ musb_write_txhubaddr(musb, i,
musb->context.index_regs[i].txhubaddr);
- musb_write_txhubport(musb_base, i,
+ musb_write_txhubport(musb, i,
musb->context.index_regs[i].txhubport);
- ep_target_regs =
- musb_read_target_reg_base(i, musb_base);
-
- musb_write_rxfunaddr(ep_target_regs,
+ musb_write_rxfunaddr(musb, i,
musb->context.index_regs[i].rxfunaddr);
- musb_write_rxhubaddr(ep_target_regs,
+ musb_write_rxhubaddr(musb, i,
musb->context.index_regs[i].rxhubaddr);
- musb_write_rxhubport(ep_target_regs,
+ musb_write_rxhubport(musb, i,
musb->context.index_regs[i].rxhubport);
}
musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
@@ -2421,6 +2466,9 @@ static int musb_suspend(struct device *dev)
struct musb *musb = dev_to_musb(dev);
unsigned long flags;
+ musb_platform_disable(musb);
+ musb_generic_disable(musb);
+
spin_lock_irqsave(&musb->lock, flags);
if (is_peripheral_active(musb)) {
@@ -2474,6 +2522,9 @@ static int musb_resume(struct device *dev)
pm_runtime_disable(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
+
+ musb_start(musb);
+
return 0;
}
diff --git a/kernel/drivers/usb/musb/musb_core.h b/kernel/drivers/usb/musb/musb_core.h
index 3877249a8..2337d7a7d 100644
--- a/kernel/drivers/usb/musb/musb_core.h
+++ b/kernel/drivers/usb/musb/musb_core.h
@@ -67,7 +67,6 @@ struct musb_ep;
#include "musb_dma.h"
#include "musb_io.h"
-#include "musb_regs.h"
#include "musb_gadget.h"
#include <linux/usb/hcd.h>
@@ -157,6 +156,8 @@ struct musb_io;
* @writel: write 32 bits
* @read_fifo: reads the fifo
* @write_fifo: writes to fifo
+ * @dma_init: platform specific dma init function
+ * @dma_exit: platform specific dma exit function
* @init: turns on clocks, sets up platform-specific registers, etc
* @exit: undoes @init
* @set_mode: forcefully changes operating mode
@@ -165,6 +166,8 @@ struct musb_io;
* @vbus_status: returns vbus status if possible
* @set_vbus: forces vbus status
* @adjust_channel_params: pre check for standard dma channel_program func
+ * @pre_root_reset_end: called before the root usb port reset flag gets cleared
+ * @post_root_reset_end: called after the root usb port reset flag gets cleared
*/
struct musb_platform_ops {
@@ -187,6 +190,7 @@ struct musb_platform_ops {
void (*ep_select)(void __iomem *mbase, u8 epnum);
u16 fifo_mode;
u32 (*fifo_offset)(u8 epnum);
+ u32 (*busctl_offset)(u8 epnum, u16 offset);
u8 (*readb)(const void __iomem *addr, unsigned offset);
void (*writeb)(void __iomem *addr, unsigned offset, u8 data);
u16 (*readw)(const void __iomem *addr, unsigned offset);
@@ -195,6 +199,9 @@ struct musb_platform_ops {
void (*writel)(void __iomem *addr, unsigned offset, u32 data);
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+ struct dma_controller *
+ (*dma_init) (struct musb *musb, void __iomem *base);
+ void (*dma_exit)(struct dma_controller *c);
int (*set_mode)(struct musb *musb, u8 mode);
void (*try_idle)(struct musb *musb, unsigned long timeout);
int (*recover)(struct musb *musb);
@@ -205,6 +212,8 @@ struct musb_platform_ops {
int (*adjust_channel_params)(struct dma_channel *channel,
u16 packet_sz, u8 *mode,
dma_addr_t *dma_addr, u32 *len);
+ void (*pre_root_reset_end)(struct musb *musb);
+ void (*post_root_reset_end)(struct musb *musb);
};
/*
@@ -241,8 +250,6 @@ struct musb_hw_ep {
void __iomem *fifo_sync_va;
#endif
- void __iomem *target_regs;
-
/* currently scheduled peripheral endpoint */
struct musb_qh *in_qh;
struct musb_qh *out_qh;
@@ -437,6 +444,9 @@ struct musb {
#endif
};
+/* This must be included after struct musb is defined */
+#include "musb_regs.h"
+
static inline struct musb *gadget_to_musb(struct usb_gadget *g)
{
return container_of(g, struct musb, g);
@@ -569,7 +579,7 @@ static inline int musb_platform_recover(struct musb *musb)
static inline int musb_platform_get_vbus_status(struct musb *musb)
{
if (!musb->ops->vbus_status)
- return 0;
+ return -EINVAL;
return musb->ops->vbus_status(musb);
}
@@ -590,4 +600,16 @@ static inline int musb_platform_exit(struct musb *musb)
return musb->ops->exit(musb);
}
+static inline void musb_platform_pre_root_reset_end(struct musb *musb)
+{
+ if (musb->ops->pre_root_reset_end)
+ musb->ops->pre_root_reset_end(musb);
+}
+
+static inline void musb_platform_post_root_reset_end(struct musb *musb)
+{
+ if (musb->ops->post_root_reset_end)
+ musb->ops->post_root_reset_end(musb);
+}
+
#endif /* __MUSB_CORE_H__ */
diff --git a/kernel/drivers/usb/musb/musb_cppi41.c b/kernel/drivers/usb/musb/musb_cppi41.c
index 8bd8c5e26..e499b862a 100644
--- a/kernel/drivers/usb/musb/musb_cppi41.c
+++ b/kernel/drivers/usb/musb/musb_cppi41.c
@@ -551,6 +551,9 @@ static int cppi41_dma_channel_abort(struct dma_channel *channel)
} else {
cppi41_set_autoreq_mode(cppi41_channel, EP_MODE_AUTOREQ_NONE);
+ /* delay to drain to cppi dma pipeline for isoch */
+ udelay(250);
+
csr = musb_readw(epio, MUSB_RXCSR);
csr &= ~(MUSB_RXCSR_H_REQPKT | MUSB_RXCSR_DMAENAB);
musb_writew(epio, MUSB_RXCSR, csr);
@@ -614,7 +617,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
{
struct musb *musb = controller->musb;
struct device *dev = musb->controller;
- struct device_node *np = dev->of_node;
+ struct device_node *np = dev->parent->of_node;
struct cppi41_dma_channel *cppi41_channel;
int count;
int i;
@@ -664,7 +667,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
musb_dma->status = MUSB_DMA_STATUS_FREE;
musb_dma->max_len = SZ_4M;
- dc = dma_request_slave_channel(dev, str);
+ dc = dma_request_slave_channel(dev->parent, str);
if (!dc) {
dev_err(dev, "Failed to request %s.\n", str);
ret = -EPROBE_DEFER;
@@ -678,7 +681,7 @@ err:
return ret;
}
-void dma_controller_destroy(struct dma_controller *c)
+void cppi41_dma_controller_destroy(struct dma_controller *c)
{
struct cppi41_dma_controller *controller = container_of(c,
struct cppi41_dma_controller, controller);
@@ -687,14 +690,15 @@ void dma_controller_destroy(struct dma_controller *c)
cppi41_dma_controller_stop(controller);
kfree(controller);
}
+EXPORT_SYMBOL_GPL(cppi41_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb,
- void __iomem *base)
+struct dma_controller *
+cppi41_dma_controller_create(struct musb *musb, void __iomem *base)
{
struct cppi41_dma_controller *controller;
int ret = 0;
- if (!musb->controller->of_node) {
+ if (!musb->controller->parent->of_node) {
dev_err(musb->controller, "Need DT for the DMA engine.\n");
return NULL;
}
@@ -726,3 +730,4 @@ kzalloc_fail:
return ERR_PTR(ret);
return NULL;
}
+EXPORT_SYMBOL_GPL(cppi41_dma_controller_create);
diff --git a/kernel/drivers/usb/musb/musb_debugfs.c b/kernel/drivers/usb/musb/musb_debugfs.c
index 78a283e9c..9b22d946c 100644
--- a/kernel/drivers/usb/musb/musb_debugfs.c
+++ b/kernel/drivers/usb/musb/musb_debugfs.c
@@ -191,9 +191,16 @@ static ssize_t musb_test_mode_write(struct file *file,
{
struct seq_file *s = file->private_data;
struct musb *musb = s->private;
- u8 test = 0;
+ u8 test;
char buf[18];
+ test = musb_readb(musb->mregs, MUSB_TESTMODE);
+ if (test) {
+ dev_err(musb->controller, "Error: test mode is already set. "
+ "Please do USB Bus Reset to start a new test.\n");
+ return count;
+ }
+
memset(buf, 0x00, sizeof(buf));
if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
@@ -238,6 +245,90 @@ static const struct file_operations musb_test_mode_fops = {
.release = single_release,
};
+static int musb_softconnect_show(struct seq_file *s, void *unused)
+{
+ struct musb *musb = s->private;
+ u8 reg;
+ int connect;
+
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_HOST:
+ case OTG_STATE_A_WAIT_BCON:
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ connect = reg & MUSB_DEVCTL_SESSION ? 1 : 0;
+ break;
+ default:
+ connect = -1;
+ }
+
+ seq_printf(s, "%d\n", connect);
+
+ return 0;
+}
+
+static int musb_softconnect_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, musb_softconnect_show, inode->i_private);
+}
+
+static ssize_t musb_softconnect_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ struct seq_file *s = file->private_data;
+ struct musb *musb = s->private;
+ char buf[2];
+ u8 reg;
+
+ memset(buf, 0x00, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ if (!strncmp(buf, "0", 1)) {
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_HOST:
+ musb_root_disconnect(musb);
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ reg &= ~MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, reg);
+ break;
+ default:
+ break;
+ }
+ } else if (!strncmp(buf, "1", 1)) {
+ switch (musb->xceiv->otg->state) {
+ case OTG_STATE_A_WAIT_BCON:
+ /*
+ * musb_save_context() called in musb_runtime_suspend()
+ * might cache devctl with SESSION bit cleared during
+ * soft-disconnect, so specifically set SESSION bit
+ * here to preserve it for musb_runtime_resume().
+ */
+ musb->context.devctl |= MUSB_DEVCTL_SESSION;
+ reg = musb_readb(musb->mregs, MUSB_DEVCTL);
+ reg |= MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, reg);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return count;
+}
+
+/*
+ * In host mode, connect/disconnect the bus without physically
+ * remove the devices.
+ */
+static const struct file_operations musb_softconnect_fops = {
+ .open = musb_softconnect_open,
+ .write = musb_softconnect_write,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
int musb_init_debugfs(struct musb *musb)
{
struct dentry *root;
@@ -264,6 +355,13 @@ int musb_init_debugfs(struct musb *musb)
goto err1;
}
+ file = debugfs_create_file("softconnect", S_IRUGO | S_IWUSR,
+ root, musb, &musb_softconnect_fops);
+ if (!file) {
+ ret = -ENOMEM;
+ goto err1;
+ }
+
musb->debugfs_root = root;
return 0;
diff --git a/kernel/drivers/usb/musb/musb_dma.h b/kernel/drivers/usb/musb/musb_dma.h
index 1d44faa86..46357e183 100644
--- a/kernel/drivers/usb/musb/musb_dma.h
+++ b/kernel/drivers/usb/musb/musb_dma.h
@@ -68,16 +68,41 @@ struct musb_hw_ep;
#define is_dma_capable() (1)
#endif
-#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA)
-#define is_cppi_enabled() 1
+#ifdef CONFIG_USB_UX500_DMA
+#define musb_dma_ux500(musb) (musb->io.quirks & MUSB_DMA_UX500)
+#else
+#define musb_dma_ux500(musb) 0
+#endif
+
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+#define musb_dma_cppi41(musb) (musb->io.quirks & MUSB_DMA_CPPI41)
+#else
+#define musb_dma_cppi41(musb) 0
+#endif
+
+#ifdef CONFIG_USB_TI_CPPI_DMA
+#define musb_dma_cppi(musb) (musb->io.quirks & MUSB_DMA_CPPI)
#else
-#define is_cppi_enabled() 0
+#define musb_dma_cppi(musb) 0
#endif
#ifdef CONFIG_USB_TUSB_OMAP_DMA
-#define tusb_dma_omap() 1
+#define tusb_dma_omap(musb) (musb->io.quirks & MUSB_DMA_TUSB_OMAP)
+#else
+#define tusb_dma_omap(musb) 0
+#endif
+
+#ifdef CONFIG_USB_INVENTRA_DMA
+#define musb_dma_inventra(musb) (musb->io.quirks & MUSB_DMA_INVENTRA)
#else
-#define tusb_dma_omap() 0
+#define musb_dma_inventra(musb) 0
+#endif
+
+#if defined(CONFIG_USB_TI_CPPI_DMA) || defined(CONFIG_USB_TI_CPPI41_DMA)
+#define is_cppi_enabled(musb) \
+ (musb_dma_cppi(musb) || musb_dma_cppi41(musb))
+#else
+#define is_cppi_enabled(musb) 0
#endif
/* Anomaly 05000456 - USB Receive Interrupt Is Not Generated in DMA Mode 1
@@ -177,19 +202,41 @@ struct dma_controller {
extern void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit);
#ifdef CONFIG_MUSB_PIO_ONLY
-static inline struct dma_controller *dma_controller_create(struct musb *m,
- void __iomem *io)
+static inline struct dma_controller *
+musb_dma_controller_create(struct musb *m, void __iomem *io)
{
return NULL;
}
-static inline void dma_controller_destroy(struct dma_controller *d) { }
+static inline void musb_dma_controller_destroy(struct dma_controller *d) { }
#else
-extern struct dma_controller *dma_controller_create(struct musb *, void __iomem *);
+extern struct dma_controller *
+(*musb_dma_controller_create)(struct musb *, void __iomem *);
-extern void dma_controller_destroy(struct dma_controller *);
+extern void (*musb_dma_controller_destroy)(struct dma_controller *);
#endif
+/* Platform specific DMA functions */
+extern struct dma_controller *
+musbhs_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void musbhs_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+tusb_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void tusb_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+cppi41_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void cppi41_dma_controller_destroy(struct dma_controller *c);
+
+extern struct dma_controller *
+ux500_dma_controller_create(struct musb *musb, void __iomem *base);
+extern void ux500_dma_controller_destroy(struct dma_controller *c);
+
#endif /* __MUSB_DMA_H__ */
diff --git a/kernel/drivers/usb/musb/musb_dsps.c b/kernel/drivers/usb/musb/musb_dsps.c
index 65d931a28..eeb7d9ecf 100644
--- a/kernel/drivers/usb/musb/musb_dsps.c
+++ b/kernel/drivers/usb/musb/musb_dsps.c
@@ -225,8 +225,11 @@ static void dsps_musb_enable(struct musb *musb)
dsps_writel(reg_base, wrp->epintr_set, epmask);
dsps_writel(reg_base, wrp->coreintr_set, coremask);
- /* start polling for ID change. */
- mod_timer(&glue->timer, jiffies + msecs_to_jiffies(wrp->poll_timeout));
+ /* start polling for ID change in dual-role idle mode */
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
+ musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
+ mod_timer(&glue->timer, jiffies +
+ msecs_to_jiffies(wrp->poll_timeout));
dsps_musb_try_idle(musb, 0);
}
@@ -482,11 +485,7 @@ static int dsps_musb_init(struct musb *musb)
dsps_writeb(musb->mregs, MUSB_BABBLE_CTL, val);
}
- ret = dsps_musb_dbg_init(musb, glue);
- if (ret)
- return ret;
-
- return 0;
+ return dsps_musb_dbg_init(musb, glue);
}
static int dsps_musb_exit(struct musb *musb)
@@ -634,10 +633,14 @@ static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
}
static struct musb_platform_ops dsps_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_CPPI41 | MUSB_INDEXED_EP,
.init = dsps_musb_init,
.exit = dsps_musb_exit,
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+ .dma_init = cppi41_dma_controller_create,
+ .dma_exit = cppi41_dma_controller_destroy,
+#endif
.enable = dsps_musb_enable,
.disable = dsps_musb_disable,
@@ -663,7 +666,7 @@ static int get_musb_port_mode(struct device *dev)
{
enum usb_dr_mode mode;
- mode = of_usb_get_dr_mode(dev->of_node);
+ mode = usb_get_dr_mode(dev);
switch (mode) {
case USB_DR_MODE_HOST:
return MUSB_PORT_MODE_HOST;
@@ -744,6 +747,19 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
if (!ret && val)
config->multipoint = true;
+ config->maximum_speed = usb_get_maximum_speed(&parent->dev);
+ switch (config->maximum_speed) {
+ case USB_SPEED_LOW:
+ case USB_SPEED_FULL:
+ break;
+ case USB_SPEED_SUPER:
+ dev_warn(dev, "ignore incorrect maximum_speed "
+ "(super-speed) setting in dts");
+ /* fall through */
+ default:
+ config->maximum_speed = USB_SPEED_HIGH;
+ }
+
ret = platform_device_add_data(musb, &pdata, sizeof(pdata));
if (ret) {
dev_err(dev, "failed to add platform_data\n");
diff --git a/kernel/drivers/usb/musb/musb_gadget.c b/kernel/drivers/usb/musb/musb_gadget.c
index 4c481cd66..67ad630c8 100644
--- a/kernel/drivers/usb/musb/musb_gadget.c
+++ b/kernel/drivers/usb/musb/musb_gadget.c
@@ -313,8 +313,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
/* MUSB_TXCSR_P_ISO is still set correctly */
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- {
+ if (musb_dma_inventra(musb) || musb_dma_ux500(musb)) {
if (request_size < musb_ep->packet_sz)
musb_ep->dma->desired_mode = 0;
else
@@ -365,8 +364,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
}
}
-#endif
- if (is_cppi_enabled()) {
+ if (is_cppi_enabled(musb)) {
/* program endpoint CSR first, then setup DMA */
csr &= ~(MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_TXPKTRDY);
csr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_DMAMODE |
@@ -402,7 +400,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
musb_writew(epio, MUSB_TXCSR, csr);
/* invariant: prequest->buf is non-null */
}
- } else if (tusb_dma_omap())
+ } else if (tusb_dma_omap(musb))
use_dma = use_dma && c->channel_program(
musb_ep->dma, musb_ep->packet_sz,
request->zero,
@@ -489,6 +487,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
if (request) {
u8 is_dma = 0;
+ bool short_packet = false;
if (dma && (csr & MUSB_TXCSR_DMAENAB)) {
is_dma = 1;
@@ -507,15 +506,18 @@ void musb_g_tx(struct musb *musb, u8 epnum)
* First, maybe a terminating short packet. Some DMA
* engines might handle this by themselves.
*/
- if ((request->zero && request->length
+ if ((request->zero && request->length)
&& (request->length % musb_ep->packet_sz == 0)
&& (request->actual == request->length))
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- || (is_dma && (!dma->desired_mode ||
+ short_packet = true;
+
+ if ((musb_dma_inventra(musb) || musb_dma_ux500(musb)) &&
+ (is_dma && (!dma->desired_mode ||
(request->actual &
- (musb_ep->packet_sz - 1))))
-#endif
- ) {
+ (musb_ep->packet_sz - 1)))))
+ short_packet = true;
+
+ if (short_packet) {
/*
* On DMA completion, FIFO may not be
* available yet...
@@ -595,7 +597,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
return;
}
- if (is_cppi_enabled() && is_buffer_mapped(req)) {
+ if (is_cppi_enabled(musb) && is_buffer_mapped(req)) {
struct dma_controller *c = musb->dma_controller;
struct dma_channel *channel = musb_ep->dma;
@@ -637,8 +639,10 @@ static void rxstate(struct musb *musb, struct musb_request *req)
use_mode_1 = 0;
if (request->actual < request->length) {
-#ifdef CONFIG_USB_INVENTRA_DMA
- if (is_buffer_mapped(req)) {
+ if (!is_buffer_mapped(req))
+ goto buffer_aint_mapped;
+
+ if (musb_dma_inventra(musb)) {
struct dma_controller *c;
struct dma_channel *channel;
int use_dma = 0;
@@ -712,8 +716,8 @@ static void rxstate(struct musb *musb, struct musb_request *req)
if (use_dma)
return;
}
-#elif defined(CONFIG_USB_UX500_DMA)
- if ((is_buffer_mapped(req)) &&
+
+ if ((musb_dma_ux500(musb)) &&
(request->actual < request->length)) {
struct dma_controller *c;
@@ -761,7 +765,6 @@ static void rxstate(struct musb *musb, struct musb_request *req)
return;
}
-#endif /* Mentor's DMA */
len = request->length - request->actual;
dev_dbg(musb->controller, "%s OUT/RX pio fifo %d/%d, maxpacket %d\n",
@@ -771,8 +774,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
fifo_count = min_t(unsigned, len, fifo_count);
-#ifdef CONFIG_USB_TUSB_OMAP_DMA
- if (tusb_dma_omap() && is_buffer_mapped(req)) {
+ if (tusb_dma_omap(musb)) {
struct dma_controller *c = musb->dma_controller;
struct dma_channel *channel = musb_ep->dma;
u32 dma_addr = request->dma + request->actual;
@@ -786,23 +788,22 @@ static void rxstate(struct musb *musb, struct musb_request *req)
if (ret)
return;
}
-#endif
+
/*
* Unmap the dma buffer back to cpu if dma channel
* programming fails. This buffer is mapped if the
* channel allocation is successful
*/
- if (is_buffer_mapped(req)) {
- unmap_dma_buffer(req, musb);
-
- /*
- * Clear DMAENAB and AUTOCLEAR for the
- * PIO mode transfer
- */
- csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
- musb_writew(epio, MUSB_RXCSR, csr);
- }
+ unmap_dma_buffer(req, musb);
+
+ /*
+ * Clear DMAENAB and AUTOCLEAR for the
+ * PIO mode transfer
+ */
+ csr &= ~(MUSB_RXCSR_DMAENAB | MUSB_RXCSR_AUTOCLEAR);
+ musb_writew(epio, MUSB_RXCSR, csr);
+buffer_aint_mapped:
musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
(request->buf + request->actual));
request->actual += fifo_count;
@@ -1680,6 +1681,40 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
return 0;
}
+#ifdef CONFIG_BLACKFIN
+static struct usb_ep *musb_match_ep(struct usb_gadget *g,
+ struct usb_endpoint_descriptor *desc,
+ struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+ struct usb_ep *ep = NULL;
+
+ switch (usb_endpoint_type(desc)) {
+ case USB_ENDPOINT_XFER_ISOC:
+ case USB_ENDPOINT_XFER_BULK:
+ if (usb_endpoint_dir_in(desc))
+ ep = gadget_find_ep_by_name(g, "ep5in");
+ else
+ ep = gadget_find_ep_by_name(g, "ep6out");
+ break;
+ case USB_ENDPOINT_XFER_INT:
+ if (usb_endpoint_dir_in(desc))
+ ep = gadget_find_ep_by_name(g, "ep1in");
+ else
+ ep = gadget_find_ep_by_name(g, "ep2out");
+ break;
+ default:
+ break;
+ }
+
+ if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+ return ep;
+
+ return NULL;
+}
+#else
+#define musb_match_ep NULL
+#endif
+
static int musb_gadget_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int musb_gadget_stop(struct usb_gadget *g);
@@ -1693,6 +1728,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
.pullup = musb_gadget_pullup,
.udc_start = musb_gadget_start,
.udc_stop = musb_gadget_stop,
+ .match_ep = musb_match_ep,
};
/* ----------------------------------------------------------------------- */
@@ -1725,6 +1761,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
INIT_LIST_HEAD(&ep->end_point.ep_list);
if (!epnum) {
usb_ep_set_maxpacket_limit(&ep->end_point, 64);
+ ep->end_point.caps.type_control = true;
ep->end_point.ops = &musb_g_ep0_ops;
musb->g.ep0 = &ep->end_point;
} else {
@@ -1732,9 +1769,20 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx);
else
usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx);
+ ep->end_point.caps.type_iso = true;
+ ep->end_point.caps.type_bulk = true;
+ ep->end_point.caps.type_int = true;
ep->end_point.ops = &musb_ep_ops;
list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list);
}
+
+ if (!epnum || hw_ep->is_shared_fifo) {
+ ep->end_point.caps.dir_in = true;
+ ep->end_point.caps.dir_out = true;
+ } else if (is_in)
+ ep->end_point.caps.dir_in = true;
+ else
+ ep->end_point.caps.dir_out = true;
}
/*
@@ -2071,6 +2119,7 @@ __acquires(musb->lock)
musb->g.b_hnp_enable = 0;
musb->g.a_alt_hnp_support = 0;
musb->g.a_hnp_support = 0;
+ musb->g.quirk_zlp_not_supp = 1;
/* Normal reset, as B-Device;
* or else after HNP, as A-Device
diff --git a/kernel/drivers/usb/musb/musb_host.c b/kernel/drivers/usb/musb/musb_host.c
index c3d5fc9df..795a45b1b 100644
--- a/kernel/drivers/usb/musb/musb_host.c
+++ b/kernel/drivers/usb/musb/musb_host.c
@@ -112,22 +112,32 @@ static void musb_h_tx_flush_fifo(struct musb_hw_ep *ep)
struct musb *musb = ep->musb;
void __iomem *epio = ep->regs;
u16 csr;
- u16 lastcsr = 0;
int retries = 1000;
csr = musb_readw(epio, MUSB_TXCSR);
while (csr & MUSB_TXCSR_FIFONOTEMPTY) {
- if (csr != lastcsr)
- dev_dbg(musb->controller, "Host TX FIFONOTEMPTY csr: %02x\n", csr);
- lastcsr = csr;
csr |= MUSB_TXCSR_FLUSHFIFO | MUSB_TXCSR_TXPKTRDY;
musb_writew(epio, MUSB_TXCSR, csr);
csr = musb_readw(epio, MUSB_TXCSR);
- if (WARN(retries-- < 1,
+
+ /*
+ * FIXME: sometimes the tx fifo flush failed, it has been
+ * observed during device disconnect on AM335x.
+ *
+ * To reproduce the issue, ensure tx urb(s) are queued when
+ * unplug the usb device which is connected to AM335x usb
+ * host port.
+ *
+ * I found using a usb-ethernet device and running iperf
+ * (client on AM335x) has very high chance to trigger it.
+ *
+ * Better to turn on dev_dbg() in musb_cleanup_urb() with
+ * CPPI enabled to see the issue when aborting the tx channel.
+ */
+ if (dev_WARN_ONCE(musb->controller, retries-- < 1,
"Could not flush host TX%d fifo: csr: %04x\n",
ep->epnum, csr))
return;
- mdelay(1);
}
}
@@ -181,7 +191,7 @@ static inline void musb_h_tx_dma_start(struct musb_hw_ep *ep)
/* NOTE: no locks here; caller should lock and select EP */
txcsr = musb_readw(ep->regs, MUSB_TXCSR);
txcsr |= MUSB_TXCSR_DMAENAB | MUSB_TXCSR_H_WZC_BITS;
- if (is_cppi_enabled())
+ if (is_cppi_enabled(ep->musb))
txcsr |= MUSB_TXCSR_DMAMODE;
musb_writew(ep->regs, MUSB_TXCSR, txcsr);
}
@@ -294,7 +304,7 @@ start:
if (!hw_ep->tx_channel)
musb_h_tx_start(hw_ep);
- else if (is_cppi_enabled() || tusb_dma_omap())
+ else if (is_cppi_enabled(musb) || tusb_dma_omap(musb))
musb_h_tx_dma_start(hw_ep);
}
}
@@ -555,8 +565,9 @@ musb_host_packet_rx(struct musb *musb, struct urb *urb, u8 epnum, u8 iso_err)
* the busy/not-empty tests are basically paranoia.
*/
static void
-musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
+musb_rx_reinit(struct musb *musb, struct musb_qh *qh, u8 epnum)
{
+ struct musb_hw_ep *ep = musb->endpoints + epnum;
u16 csr;
/* NOTE: we know the "rx" fifo reinit never triggers for ep0.
@@ -594,10 +605,9 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
/* target addr and (for multipoint) hub addr/port */
if (musb->is_multipoint) {
- musb_write_rxfunaddr(ep->target_regs, qh->addr_reg);
- musb_write_rxhubaddr(ep->target_regs, qh->h_addr_reg);
- musb_write_rxhubport(ep->target_regs, qh->h_port_reg);
-
+ musb_write_rxfunaddr(musb, epnum, qh->addr_reg);
+ musb_write_rxhubaddr(musb, epnum, qh->h_addr_reg);
+ musb_write_rxhubport(musb, epnum, qh->h_port_reg);
} else
musb_writeb(musb->mregs, MUSB_FADDR, qh->addr_reg);
@@ -617,23 +627,22 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep)
ep->rx_reinit = 0;
}
-static bool musb_tx_dma_program(struct dma_controller *dma,
+static int musb_tx_dma_set_mode_mentor(struct dma_controller *dma,
struct musb_hw_ep *hw_ep, struct musb_qh *qh,
- struct urb *urb, u32 offset, u32 length)
+ struct urb *urb, u32 offset,
+ u32 *length, u8 *mode)
{
struct dma_channel *channel = hw_ep->tx_channel;
void __iomem *epio = hw_ep->regs;
u16 pkt_size = qh->maxpacket;
u16 csr;
- u8 mode;
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
- if (length > channel->max_len)
- length = channel->max_len;
+ if (*length > channel->max_len)
+ *length = channel->max_len;
csr = musb_readw(epio, MUSB_TXCSR);
- if (length > pkt_size) {
- mode = 1;
+ if (*length > pkt_size) {
+ *mode = 1;
csr |= MUSB_TXCSR_DMAMODE | MUSB_TXCSR_DMAENAB;
/* autoset shouldn't be set in high bandwidth */
/*
@@ -649,15 +658,28 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
can_bulk_split(hw_ep->musb, qh->type)))
csr |= MUSB_TXCSR_AUTOSET;
} else {
- mode = 0;
+ *mode = 0;
csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE);
csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */
}
channel->desired_mode = mode;
musb_writew(epio, MUSB_TXCSR, csr);
-#else
- if (!is_cppi_enabled() && !tusb_dma_omap())
- return false;
+
+ return 0;
+}
+
+static int musb_tx_dma_set_mode_cppi_tusb(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ u32 offset,
+ u32 *length,
+ u8 *mode)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+
+ if (!is_cppi_enabled(hw_ep->musb) && !tusb_dma_omap(hw_ep->musb))
+ return -ENODEV;
channel->actual_len = 0;
@@ -665,8 +687,28 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
* TX uses "RNDIS" mode automatically but needs help
* to identify the zero-length-final-packet case.
*/
- mode = (urb->transfer_flags & URB_ZERO_PACKET) ? 1 : 0;
-#endif
+ *mode = (urb->transfer_flags & URB_ZERO_PACKET) ? 1 : 0;
+
+ return 0;
+}
+
+static bool musb_tx_dma_program(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep, struct musb_qh *qh,
+ struct urb *urb, u32 offset, u32 length)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+ u16 pkt_size = qh->maxpacket;
+ u8 mode;
+ int res;
+
+ if (musb_dma_inventra(hw_ep->musb) || musb_dma_ux500(hw_ep->musb))
+ res = musb_tx_dma_set_mode_mentor(dma, hw_ep, qh, urb,
+ offset, &length, &mode);
+ else
+ res = musb_tx_dma_set_mode_cppi_tusb(dma, hw_ep, qh, urb,
+ offset, &length, &mode);
+ if (res)
+ return false;
qh->segsize = length;
@@ -678,6 +720,9 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
if (!dma->channel_program(channel, pkt_size, mode,
urb->transfer_dma + offset, length)) {
+ void __iomem *epio = hw_ep->regs;
+ u16 csr;
+
dma->channel_release(channel);
hw_ep->tx_channel = NULL;
@@ -801,9 +846,9 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
/* target addr and (for multipoint) hub addr/port */
if (musb->is_multipoint) {
- musb_write_txfunaddr(mbase, epnum, qh->addr_reg);
- musb_write_txhubaddr(mbase, epnum, qh->h_addr_reg);
- musb_write_txhubport(mbase, epnum, qh->h_port_reg);
+ musb_write_txfunaddr(musb, epnum, qh->addr_reg);
+ musb_write_txhubaddr(musb, epnum, qh->h_addr_reg);
+ musb_write_txhubport(musb, epnum, qh->h_port_reg);
/* FIXME if !epnum, do the same for RX ... */
} else
musb_writeb(mbase, MUSB_FADDR, qh->addr_reg);
@@ -875,7 +920,7 @@ finish:
u16 csr;
if (hw_ep->rx_reinit) {
- musb_rx_reinit(musb, qh, hw_ep);
+ musb_rx_reinit(musb, qh, epnum);
/* init new state: toggle and NYET, maybe DMA later */
if (usb_gettoggle(urb->dev, qh->epnum, 0))
@@ -901,7 +946,7 @@ finish:
/* kick things off */
- if ((is_cppi_enabled() || tusb_dma_omap()) && dma_channel) {
+ if ((is_cppi_enabled(musb) || tusb_dma_omap(musb)) && dma_channel) {
/* Candidate for DMA */
dma_channel->actual_len = 0L;
qh->segsize = len;
@@ -1441,7 +1486,7 @@ done:
} else if ((usb_pipeisoc(pipe) || transfer_pending) && dma) {
if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb,
offset, length)) {
- if (is_cppi_enabled() || tusb_dma_omap())
+ if (is_cppi_enabled(musb) || tusb_dma_omap(musb))
musb_h_tx_dma_start(hw_ep);
return;
}
@@ -1498,9 +1543,47 @@ done:
MUSB_TXCSR_H_WZC_BITS | MUSB_TXCSR_TXPKTRDY);
}
+#ifdef CONFIG_USB_TI_CPPI41_DMA
+/* Seems to set up ISO for cppi41 and not advance len. See commit c57c41d */
+static int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ struct dma_channel *channel = hw_ep->tx_channel;
+ void __iomem *epio = hw_ep->regs;
+ dma_addr_t *buf;
+ u32 length, res;
+ u16 val;
+
+ buf = (void *)urb->iso_frame_desc[qh->iso_idx].offset +
+ (u32)urb->transfer_dma;
-#ifdef CONFIG_USB_INVENTRA_DMA
+ length = urb->iso_frame_desc[qh->iso_idx].length;
+
+ val = musb_readw(epio, MUSB_RXCSR);
+ val |= MUSB_RXCSR_DMAENAB;
+ musb_writew(hw_ep->regs, MUSB_RXCSR, val);
+ res = dma->channel_program(channel, qh->maxpacket, 0,
+ (u32)buf, length);
+
+ return res;
+}
+#else
+static inline int musb_rx_dma_iso_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ return false;
+}
+#endif
+
+#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
+ defined(CONFIG_USB_TI_CPPI41_DMA)
/* Host side RX (IN) using Mentor DMA works as follows:
submit_urb ->
- if queue was empty, ProgramEndpoint
@@ -1535,7 +1618,194 @@ done:
* thus be a great candidate for using mode 1 ... for all but the
* last packet of one URB's transfer.
*/
+static int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ struct dma_channel *channel = hw_ep->rx_channel;
+ void __iomem *epio = hw_ep->regs;
+ u16 val;
+ int pipe;
+ bool done;
+ pipe = urb->pipe;
+
+ if (usb_pipeisoc(pipe)) {
+ struct usb_iso_packet_descriptor *d;
+
+ d = urb->iso_frame_desc + qh->iso_idx;
+ d->actual_length = len;
+
+ /* even if there was an error, we did the dma
+ * for iso_frame_desc->length
+ */
+ if (d->status != -EILSEQ && d->status != -EOVERFLOW)
+ d->status = 0;
+
+ if (++qh->iso_idx >= urb->number_of_packets) {
+ done = true;
+ } else {
+ /* REVISIT: Why ignore return value here? */
+ if (musb_dma_cppi41(hw_ep->musb))
+ done = musb_rx_dma_iso_cppi41(dma, hw_ep, qh,
+ urb, len);
+ done = false;
+ }
+
+ } else {
+ /* done if urb buffer is full or short packet is recd */
+ done = (urb->actual_length + len >=
+ urb->transfer_buffer_length
+ || channel->actual_len < qh->maxpacket
+ || channel->rx_packet_done);
+ }
+
+ /* send IN token for next packet, without AUTOREQ */
+ if (!done) {
+ val = musb_readw(epio, MUSB_RXCSR);
+ val |= MUSB_RXCSR_H_REQPKT;
+ musb_writew(epio, MUSB_RXCSR, MUSB_RXCSR_H_WZC_BITS | val);
+ }
+
+ return done;
+}
+
+/* Disadvantage of using mode 1:
+ * It's basically usable only for mass storage class; essentially all
+ * other protocols also terminate transfers on short packets.
+ *
+ * Details:
+ * An extra IN token is sent at the end of the transfer (due to AUTOREQ)
+ * If you try to use mode 1 for (transfer_buffer_length - 512), and try
+ * to use the extra IN token to grab the last packet using mode 0, then
+ * the problem is that you cannot be sure when the device will send the
+ * last packet and RxPktRdy set. Sometimes the packet is recd too soon
+ * such that it gets lost when RxCSR is re-set at the end of the mode 1
+ * transfer, while sometimes it is recd just a little late so that if you
+ * try to configure for mode 0 soon after the mode 1 transfer is
+ * completed, you will find rxcount 0. Okay, so you might think why not
+ * wait for an interrupt when the pkt is recd. Well, you won't get any!
+ */
+static int musb_rx_dma_in_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len,
+ u8 iso_err)
+{
+ struct musb *musb = hw_ep->musb;
+ void __iomem *epio = hw_ep->regs;
+ struct dma_channel *channel = hw_ep->rx_channel;
+ u16 rx_count, val;
+ int length, pipe, done;
+ dma_addr_t buf;
+
+ rx_count = musb_readw(epio, MUSB_RXCOUNT);
+ pipe = urb->pipe;
+
+ if (usb_pipeisoc(pipe)) {
+ int d_status = 0;
+ struct usb_iso_packet_descriptor *d;
+
+ d = urb->iso_frame_desc + qh->iso_idx;
+
+ if (iso_err) {
+ d_status = -EILSEQ;
+ urb->error_count++;
+ }
+ if (rx_count > d->length) {
+ if (d_status == 0) {
+ d_status = -EOVERFLOW;
+ urb->error_count++;
+ }
+ dev_dbg(musb->controller, "** OVERFLOW %d into %d\n",
+ rx_count, d->length);
+
+ length = d->length;
+ } else
+ length = rx_count;
+ d->status = d_status;
+ buf = urb->transfer_dma + d->offset;
+ } else {
+ length = rx_count;
+ buf = urb->transfer_dma + urb->actual_length;
+ }
+
+ channel->desired_mode = 0;
+#ifdef USE_MODE1
+ /* because of the issue below, mode 1 will
+ * only rarely behave with correct semantics.
+ */
+ if ((urb->transfer_flags & URB_SHORT_NOT_OK)
+ && (urb->transfer_buffer_length - urb->actual_length)
+ > qh->maxpacket)
+ channel->desired_mode = 1;
+ if (rx_count < hw_ep->max_packet_sz_rx) {
+ length = rx_count;
+ channel->desired_mode = 0;
+ } else {
+ length = urb->transfer_buffer_length;
+ }
+#endif
+
+ /* See comments above on disadvantages of using mode 1 */
+ val = musb_readw(epio, MUSB_RXCSR);
+ val &= ~MUSB_RXCSR_H_REQPKT;
+
+ if (channel->desired_mode == 0)
+ val &= ~MUSB_RXCSR_H_AUTOREQ;
+ else
+ val |= MUSB_RXCSR_H_AUTOREQ;
+ val |= MUSB_RXCSR_DMAENAB;
+
+ /* autoclear shouldn't be set in high bandwidth */
+ if (qh->hb_mult == 1)
+ val |= MUSB_RXCSR_AUTOCLEAR;
+
+ musb_writew(epio, MUSB_RXCSR, MUSB_RXCSR_H_WZC_BITS | val);
+
+ /* REVISIT if when actual_length != 0,
+ * transfer_buffer_length needs to be
+ * adjusted first...
+ */
+ done = dma->channel_program(channel, qh->maxpacket,
+ channel->desired_mode,
+ buf, length);
+
+ if (!done) {
+ dma->channel_release(channel);
+ hw_ep->rx_channel = NULL;
+ channel = NULL;
+ val = musb_readw(epio, MUSB_RXCSR);
+ val &= ~(MUSB_RXCSR_DMAENAB
+ | MUSB_RXCSR_H_AUTOREQ
+ | MUSB_RXCSR_AUTOCLEAR);
+ musb_writew(epio, MUSB_RXCSR, val);
+ }
+
+ return done;
+}
+#else
+static inline int musb_rx_dma_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len)
+{
+ return false;
+}
+
+static inline int musb_rx_dma_in_inventra_cppi41(struct dma_controller *dma,
+ struct musb_hw_ep *hw_ep,
+ struct musb_qh *qh,
+ struct urb *urb,
+ size_t len,
+ u8 iso_err)
+{
+ return false;
+}
#endif
/*
@@ -1546,6 +1816,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
{
struct urb *urb;
struct musb_hw_ep *hw_ep = musb->endpoints + epnum;
+ struct dma_controller *c = musb->dma_controller;
void __iomem *epio = hw_ep->regs;
struct musb_qh *qh = hw_ep->in_qh;
size_t xfer_len;
@@ -1661,9 +1932,8 @@ void musb_host_rx(struct musb *musb, u8 epnum)
*/
/* FIXME this is _way_ too much in-line logic for Mentor DMA */
-
-#if !defined(CONFIG_USB_INVENTRA_DMA) && !defined(CONFIG_USB_UX500_DMA)
- if (rx_csr & MUSB_RXCSR_H_REQPKT) {
+ if (!musb_dma_inventra(musb) && !musb_dma_ux500(musb) &&
+ (rx_csr & MUSB_RXCSR_H_REQPKT)) {
/* REVISIT this happened for a while on some short reads...
* the cleanup still needs investigation... looks bad...
* and also duplicates dma cleanup code above ... plus,
@@ -1684,7 +1954,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
musb_writew(epio, MUSB_RXCSR,
MUSB_RXCSR_H_WZC_BITS | rx_csr);
}
-#endif
+
if (dma && (rx_csr & MUSB_RXCSR_DMAENAB)) {
xfer_len = dma->actual_len;
@@ -1694,67 +1964,18 @@ void musb_host_rx(struct musb *musb, u8 epnum)
| MUSB_RXCSR_RXPKTRDY);
musb_writew(hw_ep->regs, MUSB_RXCSR, val);
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
- defined(CONFIG_USB_TI_CPPI41_DMA)
- if (usb_pipeisoc(pipe)) {
- struct usb_iso_packet_descriptor *d;
-
- d = urb->iso_frame_desc + qh->iso_idx;
- d->actual_length = xfer_len;
-
- /* even if there was an error, we did the dma
- * for iso_frame_desc->length
- */
- if (d->status != -EILSEQ && d->status != -EOVERFLOW)
- d->status = 0;
-
- if (++qh->iso_idx >= urb->number_of_packets) {
- done = true;
- } else {
-#if defined(CONFIG_USB_TI_CPPI41_DMA)
- struct dma_controller *c;
- dma_addr_t *buf;
- u32 length, ret;
-
- c = musb->dma_controller;
- buf = (void *)
- urb->iso_frame_desc[qh->iso_idx].offset
- + (u32)urb->transfer_dma;
-
- length =
- urb->iso_frame_desc[qh->iso_idx].length;
-
- val |= MUSB_RXCSR_DMAENAB;
- musb_writew(hw_ep->regs, MUSB_RXCSR, val);
-
- ret = c->channel_program(dma, qh->maxpacket,
- 0, (u32) buf, length);
-#endif
- done = false;
- }
-
- } else {
- /* done if urb buffer is full or short packet is recd */
- done = (urb->actual_length + xfer_len >=
- urb->transfer_buffer_length
- || dma->actual_len < qh->maxpacket
- || dma->rx_packet_done);
- }
-
- /* send IN token for next packet, without AUTOREQ */
- if (!done) {
- val |= MUSB_RXCSR_H_REQPKT;
- musb_writew(epio, MUSB_RXCSR,
- MUSB_RXCSR_H_WZC_BITS | val);
+ if (musb_dma_inventra(musb) || musb_dma_ux500(musb) ||
+ musb_dma_cppi41(musb)) {
+ done = musb_rx_dma_inventra_cppi41(c, hw_ep, qh, urb, xfer_len);
+ dev_dbg(hw_ep->musb->controller,
+ "ep %d dma %s, rxcsr %04x, rxcount %d\n",
+ epnum, done ? "off" : "reset",
+ musb_readw(epio, MUSB_RXCSR),
+ musb_readw(epio, MUSB_RXCOUNT));
+ } else {
+ done = true;
}
- dev_dbg(musb->controller, "ep %d dma %s, rxcsr %04x, rxcount %d\n", epnum,
- done ? "off" : "reset",
- musb_readw(epio, MUSB_RXCSR),
- musb_readw(epio, MUSB_RXCOUNT));
-#else
- done = true;
-#endif
} else if (urb->status == -EINPROGRESS) {
/* if no errors, be sure a packet is ready for unloading */
if (unlikely(!(rx_csr & MUSB_RXCSR_RXPKTRDY))) {
@@ -1772,126 +1993,24 @@ void musb_host_rx(struct musb *musb, u8 epnum)
}
/* we are expecting IN packets */
-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
- defined(CONFIG_USB_TI_CPPI41_DMA)
- if (dma) {
- struct dma_controller *c;
- u16 rx_count;
- int ret, length;
- dma_addr_t buf;
-
- rx_count = musb_readw(epio, MUSB_RXCOUNT);
-
- dev_dbg(musb->controller, "RX%d count %d, buffer 0x%llx len %d/%d\n",
- epnum, rx_count,
- (unsigned long long) urb->transfer_dma
- + urb->actual_length,
- qh->offset,
- urb->transfer_buffer_length);
-
- c = musb->dma_controller;
-
- if (usb_pipeisoc(pipe)) {
- int d_status = 0;
- struct usb_iso_packet_descriptor *d;
-
- d = urb->iso_frame_desc + qh->iso_idx;
-
- if (iso_err) {
- d_status = -EILSEQ;
- urb->error_count++;
- }
- if (rx_count > d->length) {
- if (d_status == 0) {
- d_status = -EOVERFLOW;
- urb->error_count++;
- }
- dev_dbg(musb->controller, "** OVERFLOW %d into %d\n",\
- rx_count, d->length);
-
- length = d->length;
- } else
- length = rx_count;
- d->status = d_status;
- buf = urb->transfer_dma + d->offset;
- } else {
- length = rx_count;
- buf = urb->transfer_dma +
- urb->actual_length;
- }
-
- dma->desired_mode = 0;
-#ifdef USE_MODE1
- /* because of the issue below, mode 1 will
- * only rarely behave with correct semantics.
- */
- if ((urb->transfer_flags &
- URB_SHORT_NOT_OK)
- && (urb->transfer_buffer_length -
- urb->actual_length)
- > qh->maxpacket)
- dma->desired_mode = 1;
- if (rx_count < hw_ep->max_packet_sz_rx) {
- length = rx_count;
- dma->desired_mode = 0;
- } else {
- length = urb->transfer_buffer_length;
- }
-#endif
-
-/* Disadvantage of using mode 1:
- * It's basically usable only for mass storage class; essentially all
- * other protocols also terminate transfers on short packets.
- *
- * Details:
- * An extra IN token is sent at the end of the transfer (due to AUTOREQ)
- * If you try to use mode 1 for (transfer_buffer_length - 512), and try
- * to use the extra IN token to grab the last packet using mode 0, then
- * the problem is that you cannot be sure when the device will send the
- * last packet and RxPktRdy set. Sometimes the packet is recd too soon
- * such that it gets lost when RxCSR is re-set at the end of the mode 1
- * transfer, while sometimes it is recd just a little late so that if you
- * try to configure for mode 0 soon after the mode 1 transfer is
- * completed, you will find rxcount 0. Okay, so you might think why not
- * wait for an interrupt when the pkt is recd. Well, you won't get any!
- */
-
- val = musb_readw(epio, MUSB_RXCSR);
- val &= ~MUSB_RXCSR_H_REQPKT;
-
- if (dma->desired_mode == 0)
- val &= ~MUSB_RXCSR_H_AUTOREQ;
+ if ((musb_dma_inventra(musb) || musb_dma_ux500(musb) ||
+ musb_dma_cppi41(musb)) && dma) {
+ dev_dbg(hw_ep->musb->controller,
+ "RX%d count %d, buffer 0x%llx len %d/%d\n",
+ epnum, musb_readw(epio, MUSB_RXCOUNT),
+ (unsigned long long) urb->transfer_dma
+ + urb->actual_length,
+ qh->offset,
+ urb->transfer_buffer_length);
+
+ done = musb_rx_dma_in_inventra_cppi41(c, hw_ep, qh,
+ urb, xfer_len,
+ iso_err);
+ if (done)
+ goto finish;
else
- val |= MUSB_RXCSR_H_AUTOREQ;
- val |= MUSB_RXCSR_DMAENAB;
-
- /* autoclear shouldn't be set in high bandwidth */
- if (qh->hb_mult == 1)
- val |= MUSB_RXCSR_AUTOCLEAR;
-
- musb_writew(epio, MUSB_RXCSR,
- MUSB_RXCSR_H_WZC_BITS | val);
-
- /* REVISIT if when actual_length != 0,
- * transfer_buffer_length needs to be
- * adjusted first...
- */
- ret = c->channel_program(
- dma, qh->maxpacket,
- dma->desired_mode, buf, length);
-
- if (!ret) {
- c->channel_release(dma);
- hw_ep->rx_channel = NULL;
- dma = NULL;
- val = musb_readw(epio, MUSB_RXCSR);
- val &= ~(MUSB_RXCSR_DMAENAB
- | MUSB_RXCSR_H_AUTOREQ
- | MUSB_RXCSR_AUTOCLEAR);
- musb_writew(epio, MUSB_RXCSR, val);
- }
+ dev_err(musb->controller, "error: rx_dma failed\n");
}
-#endif /* Mentor DMA */
if (!dma) {
unsigned int received_len;
@@ -2512,6 +2631,7 @@ static void musb_free_temp_buffer(struct urb *urb)
{
enum dma_data_direction dir;
struct musb_temp_buffer *temp;
+ size_t length;
if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER))
return;
@@ -2522,8 +2642,12 @@ static void musb_free_temp_buffer(struct urb *urb)
data);
if (dir == DMA_FROM_DEVICE) {
- memcpy(temp->old_xfer_buffer, temp->data,
- urb->transfer_buffer_length);
+ if (usb_pipeisoc(urb->pipe))
+ length = urb->transfer_buffer_length;
+ else
+ length = urb->actual_length;
+
+ memcpy(temp->old_xfer_buffer, temp->data, length);
}
urb->transfer_buffer = temp->old_xfer_buffer;
kfree(temp->kmalloc_ptr);
diff --git a/kernel/drivers/usb/musb/musb_io.h b/kernel/drivers/usb/musb/musb_io.h
index 8a57a6f4b..17a80ae20 100644
--- a/kernel/drivers/usb/musb/musb_io.h
+++ b/kernel/drivers/usb/musb/musb_io.h
@@ -47,6 +47,7 @@
* @fifo_offset: platform specific function to get fifo offset
* @read_fifo: platform specific function to read fifo
* @write_fifo: platform specific function to write fifo
+ * @busctl_offset: platform specific function to get busctl offset
*/
struct musb_io {
u32 quirks;
@@ -55,6 +56,7 @@ struct musb_io {
u32 (*fifo_offset)(u8 epnum);
void (*read_fifo)(struct musb_hw_ep *hw_ep, u16 len, u8 *buf);
void (*write_fifo)(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf);
+ u32 (*busctl_offset)(u8 epnum, u16 offset);
};
/* Do not add new entries here, add them the struct musb_io instead */
diff --git a/kernel/drivers/usb/musb/musb_regs.h b/kernel/drivers/usb/musb/musb_regs.h
index 11f0be074..cff5bcf0d 100644
--- a/kernel/drivers/usb/musb/musb_regs.h
+++ b/kernel/drivers/usb/musb/musb_regs.h
@@ -300,9 +300,6 @@
#define MUSB_RXHUBADDR 0x06
#define MUSB_RXHUBPORT 0x07
-#define MUSB_BUSCTL_OFFSET(_epnum, _offset) \
- (0x80 + (8*(_epnum)) + (_offset))
-
static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size)
{
musb_writeb(mbase, MUSB_TXFIFOSZ, c_size);
@@ -364,78 +361,84 @@ static inline u16 musb_read_hwvers(void __iomem *mbase)
return musb_readw(mbase, MUSB_HWVERS);
}
-static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
-{
- return (MUSB_BUSCTL_OFFSET(i, 0) + mbase);
-}
-
-static inline void musb_write_rxfunaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxfunaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXFUNCADDR, qh_addr_reg);
+ musb_writeb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR),
+ qh_addr_reg);
}
-static inline void musb_write_rxhubaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubaddr(struct musb *musb, u8 epnum,
u8 qh_h_addr_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXHUBADDR, qh_h_addr_reg);
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBADDR),
+ qh_h_addr_reg);
}
-static inline void musb_write_rxhubport(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubport(struct musb *musb, u8 epnum,
u8 qh_h_port_reg)
{
- musb_writeb(ep_target_regs, MUSB_RXHUBPORT, qh_h_port_reg);
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBPORT),
+ qh_h_port_reg);
}
-static inline void musb_write_txfunaddr(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txfunaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR),
- qh_addr_reg);
+ musb_writeb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR),
+ qh_addr_reg);
}
-static inline void musb_write_txhubaddr(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txhubaddr(struct musb *musb, u8 epnum,
u8 qh_addr_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR),
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBADDR),
qh_addr_reg);
}
-static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum,
+static inline void musb_write_txhubport(struct musb *musb, u8 epnum,
u8 qh_h_port_reg)
{
- musb_writeb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT),
+ musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBPORT),
qh_h_port_reg);
}
-static inline u8 musb_read_rxfunaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxfunaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXFUNCADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR));
}
-static inline u8 musb_read_rxhubaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxhubaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXHUBADDR));
}
-static inline u8 musb_read_rxhubport(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_rxhubport(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_RXHUBPORT));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_RXHUBPORT));
}
-static inline u8 musb_read_txfunaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txfunaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXFUNCADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR));
}
-static inline u8 musb_read_txhubaddr(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txhubaddr(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBADDR));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXHUBADDR));
}
-static inline u8 musb_read_txhubport(void __iomem *mbase, u8 epnum)
+static inline u8 musb_read_txhubport(struct musb *musb, u8 epnum)
{
- return musb_readb(mbase, MUSB_BUSCTL_OFFSET(epnum, MUSB_TXHUBPORT));
+ return musb_readb(musb->mregs,
+ musb->io.busctl_offset(epnum, MUSB_TXHUBPORT));
}
#else /* CONFIG_BLACKFIN */
@@ -556,22 +559,17 @@ static inline u16 musb_read_hwvers(void __iomem *mbase)
return MUSB_HWVERS_1900;
}
-static inline void __iomem *musb_read_target_reg_base(u8 i, void __iomem *mbase)
-{
- return NULL;
-}
-
-static inline void musb_write_rxfunaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxfunaddr(void __iomem *mbase, u8 epnum,
u8 qh_addr_req)
{
}
-static inline void musb_write_rxhubaddr(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubaddr(void __iomem *mbase, u8 epnum,
u8 qh_h_addr_reg)
{
}
-static inline void musb_write_rxhubport(void __iomem *ep_target_regs,
+static inline void musb_write_rxhubport(void __iomem *mbase, u8 epnum,
u8 qh_h_port_reg)
{
}
diff --git a/kernel/drivers/usb/musb/musb_virthub.c b/kernel/drivers/usb/musb/musb_virthub.c
index 4731baca3..92d5f7186 100644
--- a/kernel/drivers/usb/musb/musb_virthub.c
+++ b/kernel/drivers/usb/musb/musb_virthub.c
@@ -195,8 +195,10 @@ void musb_port_reset(struct musb *musb, bool do_reset)
msecs_to_jiffies(50));
} else {
dev_dbg(musb->controller, "root port reset stopped\n");
+ musb_platform_pre_root_reset_end(musb);
musb_writeb(mbase, MUSB_POWER,
power & ~MUSB_POWER_RESET);
+ musb_platform_post_root_reset_end(musb);
power = musb_readb(mbase, MUSB_POWER);
if (power & MUSB_POWER_HSMODE) {
diff --git a/kernel/drivers/usb/musb/musbhsdma.c b/kernel/drivers/usb/musb/musbhsdma.c
index ab7ec09a8..7539c3188 100644
--- a/kernel/drivers/usb/musb/musbhsdma.c
+++ b/kernel/drivers/usb/musb/musbhsdma.c
@@ -357,7 +357,7 @@ done:
return retval;
}
-void dma_controller_destroy(struct dma_controller *c)
+void musbhs_dma_controller_destroy(struct dma_controller *c)
{
struct musb_dma_controller *controller = container_of(c,
struct musb_dma_controller, controller);
@@ -369,8 +369,10 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(controller);
}
+EXPORT_SYMBOL_GPL(musbhs_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base)
+struct dma_controller *musbhs_dma_controller_create(struct musb *musb,
+ void __iomem *base)
{
struct musb_dma_controller *controller;
struct device *dev = musb->controller;
@@ -398,7 +400,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
if (request_irq(irq, dma_controller_irq, 0,
dev_name(musb->controller), &controller->controller)) {
dev_err(dev, "request_irq %d failed!\n", irq);
- dma_controller_destroy(&controller->controller);
+ musb_dma_controller_destroy(&controller->controller);
return NULL;
}
@@ -407,3 +409,4 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
return &controller->controller;
}
+EXPORT_SYMBOL_GPL(musbhs_dma_controller_create);
diff --git a/kernel/drivers/usb/musb/omap2430.c b/kernel/drivers/usb/musb/omap2430.c
index cc752d8c7..1bd9232ff 100644
--- a/kernel/drivers/usb/musb/omap2430.c
+++ b/kernel/drivers/usb/musb/omap2430.c
@@ -391,9 +391,20 @@ static int omap2430_musb_init(struct musb *musb)
}
musb->isr = omap2430_musb_interrupt;
+ /*
+ * Enable runtime PM for musb parent (this driver). We can't
+ * do it earlier as struct musb is not yet allocated and we
+ * need to touch the musb registers for runtime PM.
+ */
+ pm_runtime_enable(glue->dev);
+ status = pm_runtime_get_sync(glue->dev);
+ if (status < 0)
+ goto err1;
+
status = pm_runtime_get_sync(dev);
if (status < 0) {
dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
+ pm_runtime_put_sync(glue->dev);
goto err1;
}
@@ -426,6 +437,7 @@ static int omap2430_musb_init(struct musb *musb)
phy_power_on(musb->phy);
pm_runtime_put_noidle(musb->controller);
+ pm_runtime_put_noidle(glue->dev);
return 0;
err1:
@@ -493,6 +505,11 @@ static int omap2430_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops omap2430_ops = {
+ .quirks = MUSB_DMA_INVENTRA,
+#ifdef CONFIG_USB_INVENTRA_DMA
+ .dma_init = musbhs_dma_controller_create,
+ .dma_exit = musbhs_dma_controller_destroy,
+#endif
.init = omap2430_musb_init,
.exit = omap2430_musb_exit,
@@ -621,7 +638,11 @@ static int omap2430_probe(struct platform_device *pdev)
goto err2;
}
- pm_runtime_enable(&pdev->dev);
+ /*
+ * Note that we cannot enable PM runtime yet for this
+ * driver as we need struct musb initialized first.
+ * See omap2430_musb_init above.
+ */
ret = platform_device_add(musb);
if (ret) {
@@ -670,11 +691,12 @@ static int omap2430_runtime_resume(struct device *dev)
struct omap2430_glue *glue = dev_get_drvdata(dev);
struct musb *musb = glue_to_musb(glue);
- if (musb) {
- omap2430_low_level_init(musb);
- musb_writel(musb->mregs, OTG_INTERFSEL,
- musb->context.otg_interfsel);
- }
+ if (!musb)
+ return -EPROBE_DEFER;
+
+ omap2430_low_level_init(musb);
+ musb_writel(musb->mregs, OTG_INTERFSEL,
+ musb->context.otg_interfsel);
return 0;
}
diff --git a/kernel/drivers/usb/musb/sunxi.c b/kernel/drivers/usb/musb/sunxi.c
new file mode 100644
index 000000000..d9b0dc461
--- /dev/null
+++ b/kernel/drivers/usb/musb/sunxi.c
@@ -0,0 +1,768 @@
+/*
+ * Allwinner sun4i MUSB Glue Layer
+ *
+ * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Based on code from
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/extcon.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy-sun4i-usb.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/soc/sunxi/sunxi_sram.h>
+#include <linux/usb/musb.h>
+#include <linux/usb/of.h>
+#include <linux/usb/usb_phy_generic.h>
+#include <linux/workqueue.h>
+#include "musb_core.h"
+
+/*
+ * Register offsets, note sunxi musb has a different layout then most
+ * musb implementations, we translate the layout in musb_readb & friends.
+ */
+#define SUNXI_MUSB_POWER 0x0040
+#define SUNXI_MUSB_DEVCTL 0x0041
+#define SUNXI_MUSB_INDEX 0x0042
+#define SUNXI_MUSB_VEND0 0x0043
+#define SUNXI_MUSB_INTRTX 0x0044
+#define SUNXI_MUSB_INTRRX 0x0046
+#define SUNXI_MUSB_INTRTXE 0x0048
+#define SUNXI_MUSB_INTRRXE 0x004a
+#define SUNXI_MUSB_INTRUSB 0x004c
+#define SUNXI_MUSB_INTRUSBE 0x0050
+#define SUNXI_MUSB_FRAME 0x0054
+#define SUNXI_MUSB_TXFIFOSZ 0x0090
+#define SUNXI_MUSB_TXFIFOADD 0x0092
+#define SUNXI_MUSB_RXFIFOSZ 0x0094
+#define SUNXI_MUSB_RXFIFOADD 0x0096
+#define SUNXI_MUSB_FADDR 0x0098
+#define SUNXI_MUSB_TXFUNCADDR 0x0098
+#define SUNXI_MUSB_TXHUBADDR 0x009a
+#define SUNXI_MUSB_TXHUBPORT 0x009b
+#define SUNXI_MUSB_RXFUNCADDR 0x009c
+#define SUNXI_MUSB_RXHUBADDR 0x009e
+#define SUNXI_MUSB_RXHUBPORT 0x009f
+#define SUNXI_MUSB_CONFIGDATA 0x00c0
+
+/* VEND0 bits */
+#define SUNXI_MUSB_VEND0_PIO_MODE 0
+
+/* flags */
+#define SUNXI_MUSB_FL_ENABLED 0
+#define SUNXI_MUSB_FL_HOSTMODE 1
+#define SUNXI_MUSB_FL_HOSTMODE_PEND 2
+#define SUNXI_MUSB_FL_VBUS_ON 3
+#define SUNXI_MUSB_FL_PHY_ON 4
+#define SUNXI_MUSB_FL_HAS_SRAM 5
+#define SUNXI_MUSB_FL_HAS_RESET 6
+#define SUNXI_MUSB_FL_NO_CONFIGDATA 7
+
+/* Our read/write methods need access and do not get passed in a musb ref :| */
+static struct musb *sunxi_musb;
+
+struct sunxi_glue {
+ struct device *dev;
+ struct platform_device *musb;
+ struct clk *clk;
+ struct reset_control *rst;
+ struct phy *phy;
+ struct platform_device *usb_phy;
+ struct usb_phy *xceiv;
+ unsigned long flags;
+ struct work_struct work;
+ struct extcon_dev *extcon;
+ struct notifier_block host_nb;
+};
+
+/* phy_power_on / off may sleep, so we use a workqueue */
+static void sunxi_musb_work(struct work_struct *work)
+{
+ struct sunxi_glue *glue = container_of(work, struct sunxi_glue, work);
+ bool vbus_on, phy_on;
+
+ if (!test_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags))
+ return;
+
+ if (test_and_clear_bit(SUNXI_MUSB_FL_HOSTMODE_PEND, &glue->flags)) {
+ struct musb *musb = platform_get_drvdata(glue->musb);
+ unsigned long flags;
+ u8 devctl;
+
+ spin_lock_irqsave(&musb->lock, flags);
+
+ devctl = readb(musb->mregs + SUNXI_MUSB_DEVCTL);
+ if (test_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags)) {
+ set_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+ musb->xceiv->otg->default_a = 1;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
+ MUSB_HST_MODE(musb);
+ devctl |= MUSB_DEVCTL_SESSION;
+ } else {
+ clear_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+ musb->xceiv->otg->default_a = 0;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
+ MUSB_DEV_MODE(musb);
+ devctl &= ~MUSB_DEVCTL_SESSION;
+ }
+ writeb(devctl, musb->mregs + SUNXI_MUSB_DEVCTL);
+
+ spin_unlock_irqrestore(&musb->lock, flags);
+ }
+
+ vbus_on = test_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+ phy_on = test_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
+
+ if (phy_on != vbus_on) {
+ if (vbus_on) {
+ phy_power_on(glue->phy);
+ set_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
+ } else {
+ phy_power_off(glue->phy);
+ clear_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
+ }
+ }
+}
+
+static void sunxi_musb_set_vbus(struct musb *musb, int is_on)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ if (is_on)
+ set_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+ else
+ clear_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+
+ schedule_work(&glue->work);
+}
+
+static void sunxi_musb_pre_root_reset_end(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ sun4i_usb_phy_set_squelch_detect(glue->phy, false);
+}
+
+static void sunxi_musb_post_root_reset_end(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ sun4i_usb_phy_set_squelch_detect(glue->phy, true);
+}
+
+static irqreturn_t sunxi_musb_interrupt(int irq, void *__hci)
+{
+ struct musb *musb = __hci;
+ unsigned long flags;
+
+ spin_lock_irqsave(&musb->lock, flags);
+
+ musb->int_usb = readb(musb->mregs + SUNXI_MUSB_INTRUSB);
+ if (musb->int_usb)
+ writeb(musb->int_usb, musb->mregs + SUNXI_MUSB_INTRUSB);
+
+ /*
+ * sunxi musb often signals babble on low / full speed device
+ * disconnect, without ever raising MUSB_INTR_DISCONNECT, since
+ * normally babble never happens treat it as disconnect.
+ */
+ if ((musb->int_usb & MUSB_INTR_BABBLE) && is_host_active(musb)) {
+ musb->int_usb &= ~MUSB_INTR_BABBLE;
+ musb->int_usb |= MUSB_INTR_DISCONNECT;
+ }
+
+ if ((musb->int_usb & MUSB_INTR_RESET) && !is_host_active(musb)) {
+ /* ep0 FADDR must be 0 when (re)entering peripheral mode */
+ musb_ep_select(musb->mregs, 0);
+ musb_writeb(musb->mregs, MUSB_FADDR, 0);
+ }
+
+ musb->int_tx = readw(musb->mregs + SUNXI_MUSB_INTRTX);
+ if (musb->int_tx)
+ writew(musb->int_tx, musb->mregs + SUNXI_MUSB_INTRTX);
+
+ musb->int_rx = readw(musb->mregs + SUNXI_MUSB_INTRRX);
+ if (musb->int_rx)
+ writew(musb->int_rx, musb->mregs + SUNXI_MUSB_INTRRX);
+
+ musb_interrupt(musb);
+
+ spin_unlock_irqrestore(&musb->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static int sunxi_musb_host_notifier(struct notifier_block *nb,
+ unsigned long event, void *ptr)
+{
+ struct sunxi_glue *glue = container_of(nb, struct sunxi_glue, host_nb);
+
+ if (event)
+ set_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags);
+ else
+ clear_bit(SUNXI_MUSB_FL_HOSTMODE, &glue->flags);
+
+ set_bit(SUNXI_MUSB_FL_HOSTMODE_PEND, &glue->flags);
+ schedule_work(&glue->work);
+
+ return NOTIFY_DONE;
+}
+
+static int sunxi_musb_init(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+ int ret;
+
+ sunxi_musb = musb;
+ musb->phy = glue->phy;
+ musb->xceiv = glue->xceiv;
+
+ if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags)) {
+ ret = sunxi_sram_claim(musb->controller->parent);
+ if (ret)
+ return ret;
+ }
+
+ ret = clk_prepare_enable(glue->clk);
+ if (ret)
+ goto error_sram_release;
+
+ if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags)) {
+ ret = reset_control_deassert(glue->rst);
+ if (ret)
+ goto error_clk_disable;
+ }
+
+ writeb(SUNXI_MUSB_VEND0_PIO_MODE, musb->mregs + SUNXI_MUSB_VEND0);
+
+ /* Register notifier before calling phy_init() */
+ if (musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE) {
+ ret = extcon_register_notifier(glue->extcon, EXTCON_USB_HOST,
+ &glue->host_nb);
+ if (ret)
+ goto error_reset_assert;
+ }
+
+ ret = phy_init(glue->phy);
+ if (ret)
+ goto error_unregister_notifier;
+
+ if (musb->port_mode == MUSB_PORT_MODE_HOST) {
+ ret = phy_power_on(glue->phy);
+ if (ret)
+ goto error_phy_exit;
+ set_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags);
+ /* Stop musb work from turning vbus off again */
+ set_bit(SUNXI_MUSB_FL_VBUS_ON, &glue->flags);
+ }
+
+ musb->isr = sunxi_musb_interrupt;
+
+ /* Stop the musb-core from doing runtime pm (not supported on sunxi) */
+ pm_runtime_get(musb->controller);
+
+ return 0;
+
+error_phy_exit:
+ phy_exit(glue->phy);
+error_unregister_notifier:
+ if (musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
+ extcon_unregister_notifier(glue->extcon, EXTCON_USB_HOST,
+ &glue->host_nb);
+error_reset_assert:
+ if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags))
+ reset_control_assert(glue->rst);
+error_clk_disable:
+ clk_disable_unprepare(glue->clk);
+error_sram_release:
+ if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
+ sunxi_sram_release(musb->controller->parent);
+ return ret;
+}
+
+static int sunxi_musb_exit(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ pm_runtime_put(musb->controller);
+
+ cancel_work_sync(&glue->work);
+ if (test_bit(SUNXI_MUSB_FL_PHY_ON, &glue->flags))
+ phy_power_off(glue->phy);
+
+ phy_exit(glue->phy);
+
+ if (musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
+ extcon_unregister_notifier(glue->extcon, EXTCON_USB_HOST,
+ &glue->host_nb);
+
+ if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags))
+ reset_control_assert(glue->rst);
+
+ clk_disable_unprepare(glue->clk);
+ if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
+ sunxi_sram_release(musb->controller->parent);
+
+ return 0;
+}
+
+static void sunxi_musb_enable(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ /* musb_core does not call us in a balanced manner */
+ if (test_and_set_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags))
+ return;
+
+ schedule_work(&glue->work);
+}
+
+static void sunxi_musb_disable(struct musb *musb)
+{
+ struct sunxi_glue *glue = dev_get_drvdata(musb->controller->parent);
+
+ clear_bit(SUNXI_MUSB_FL_ENABLED, &glue->flags);
+}
+
+struct dma_controller *sunxi_musb_dma_controller_create(struct musb *musb,
+ void __iomem *base)
+{
+ return NULL;
+}
+
+void sunxi_musb_dma_controller_destroy(struct dma_controller *c)
+{
+}
+
+/*
+ * sunxi musb register layout
+ * 0x00 - 0x17 fifo regs, 1 long per fifo
+ * 0x40 - 0x57 generic control regs (power - frame)
+ * 0x80 - 0x8f ep control regs (addressed through hw_ep->regs, indexed)
+ * 0x90 - 0x97 fifo control regs (indexed)
+ * 0x98 - 0x9f multipoint / busctl regs (indexed)
+ * 0xc0 configdata reg
+ */
+
+static u32 sunxi_musb_fifo_offset(u8 epnum)
+{
+ return (epnum * 4);
+}
+
+static u32 sunxi_musb_ep_offset(u8 epnum, u16 offset)
+{
+ WARN_ONCE(offset != 0,
+ "sunxi_musb_ep_offset called with non 0 offset\n");
+
+ return 0x80; /* indexed, so ignore epnum */
+}
+
+static u32 sunxi_musb_busctl_offset(u8 epnum, u16 offset)
+{
+ return SUNXI_MUSB_TXFUNCADDR + offset;
+}
+
+static u8 sunxi_musb_readb(const void __iomem *addr, unsigned offset)
+{
+ struct sunxi_glue *glue;
+
+ if (addr == sunxi_musb->mregs) {
+ /* generic control or fifo control reg access */
+ switch (offset) {
+ case MUSB_FADDR:
+ return readb(addr + SUNXI_MUSB_FADDR);
+ case MUSB_POWER:
+ return readb(addr + SUNXI_MUSB_POWER);
+ case MUSB_INTRUSB:
+ return readb(addr + SUNXI_MUSB_INTRUSB);
+ case MUSB_INTRUSBE:
+ return readb(addr + SUNXI_MUSB_INTRUSBE);
+ case MUSB_INDEX:
+ return readb(addr + SUNXI_MUSB_INDEX);
+ case MUSB_TESTMODE:
+ return 0; /* No testmode on sunxi */
+ case MUSB_DEVCTL:
+ return readb(addr + SUNXI_MUSB_DEVCTL);
+ case MUSB_TXFIFOSZ:
+ return readb(addr + SUNXI_MUSB_TXFIFOSZ);
+ case MUSB_RXFIFOSZ:
+ return readb(addr + SUNXI_MUSB_RXFIFOSZ);
+ case MUSB_CONFIGDATA + 0x10: /* See musb_read_configdata() */
+ glue = dev_get_drvdata(sunxi_musb->controller->parent);
+ /* A33 saves a reg, and we get to hardcode this */
+ if (test_bit(SUNXI_MUSB_FL_NO_CONFIGDATA,
+ &glue->flags))
+ return 0xde;
+
+ return readb(addr + SUNXI_MUSB_CONFIGDATA);
+ /* Offset for these is fixed by sunxi_musb_busctl_offset() */
+ case SUNXI_MUSB_TXFUNCADDR:
+ case SUNXI_MUSB_TXHUBADDR:
+ case SUNXI_MUSB_TXHUBPORT:
+ case SUNXI_MUSB_RXFUNCADDR:
+ case SUNXI_MUSB_RXHUBADDR:
+ case SUNXI_MUSB_RXHUBPORT:
+ /* multipoint / busctl reg access */
+ return readb(addr + offset);
+ default:
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown readb offset %u\n", offset);
+ return 0;
+ }
+ } else if (addr == (sunxi_musb->mregs + 0x80)) {
+ /* ep control reg access */
+ /* sunxi has a 2 byte hole before the txtype register */
+ if (offset >= MUSB_TXTYPE)
+ offset += 2;
+ return readb(addr + offset);
+ }
+
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown readb at 0x%x bytes offset\n",
+ (int)(addr - sunxi_musb->mregs));
+ return 0;
+}
+
+static void sunxi_musb_writeb(void __iomem *addr, unsigned offset, u8 data)
+{
+ if (addr == sunxi_musb->mregs) {
+ /* generic control or fifo control reg access */
+ switch (offset) {
+ case MUSB_FADDR:
+ return writeb(data, addr + SUNXI_MUSB_FADDR);
+ case MUSB_POWER:
+ return writeb(data, addr + SUNXI_MUSB_POWER);
+ case MUSB_INTRUSB:
+ return writeb(data, addr + SUNXI_MUSB_INTRUSB);
+ case MUSB_INTRUSBE:
+ return writeb(data, addr + SUNXI_MUSB_INTRUSBE);
+ case MUSB_INDEX:
+ return writeb(data, addr + SUNXI_MUSB_INDEX);
+ case MUSB_TESTMODE:
+ if (data)
+ dev_warn(sunxi_musb->controller->parent,
+ "sunxi-musb does not have testmode\n");
+ return;
+ case MUSB_DEVCTL:
+ return writeb(data, addr + SUNXI_MUSB_DEVCTL);
+ case MUSB_TXFIFOSZ:
+ return writeb(data, addr + SUNXI_MUSB_TXFIFOSZ);
+ case MUSB_RXFIFOSZ:
+ return writeb(data, addr + SUNXI_MUSB_RXFIFOSZ);
+ /* Offset for these is fixed by sunxi_musb_busctl_offset() */
+ case SUNXI_MUSB_TXFUNCADDR:
+ case SUNXI_MUSB_TXHUBADDR:
+ case SUNXI_MUSB_TXHUBPORT:
+ case SUNXI_MUSB_RXFUNCADDR:
+ case SUNXI_MUSB_RXHUBADDR:
+ case SUNXI_MUSB_RXHUBPORT:
+ /* multipoint / busctl reg access */
+ return writeb(data, addr + offset);
+ default:
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown writeb offset %u\n", offset);
+ return;
+ }
+ } else if (addr == (sunxi_musb->mregs + 0x80)) {
+ /* ep control reg access */
+ if (offset >= MUSB_TXTYPE)
+ offset += 2;
+ return writeb(data, addr + offset);
+ }
+
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown writeb at 0x%x bytes offset\n",
+ (int)(addr - sunxi_musb->mregs));
+}
+
+static u16 sunxi_musb_readw(const void __iomem *addr, unsigned offset)
+{
+ if (addr == sunxi_musb->mregs) {
+ /* generic control or fifo control reg access */
+ switch (offset) {
+ case MUSB_INTRTX:
+ return readw(addr + SUNXI_MUSB_INTRTX);
+ case MUSB_INTRRX:
+ return readw(addr + SUNXI_MUSB_INTRRX);
+ case MUSB_INTRTXE:
+ return readw(addr + SUNXI_MUSB_INTRTXE);
+ case MUSB_INTRRXE:
+ return readw(addr + SUNXI_MUSB_INTRRXE);
+ case MUSB_FRAME:
+ return readw(addr + SUNXI_MUSB_FRAME);
+ case MUSB_TXFIFOADD:
+ return readw(addr + SUNXI_MUSB_TXFIFOADD);
+ case MUSB_RXFIFOADD:
+ return readw(addr + SUNXI_MUSB_RXFIFOADD);
+ case MUSB_HWVERS:
+ return 0; /* sunxi musb version is not known */
+ default:
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown readw offset %u\n", offset);
+ return 0;
+ }
+ } else if (addr == (sunxi_musb->mregs + 0x80)) {
+ /* ep control reg access */
+ return readw(addr + offset);
+ }
+
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown readw at 0x%x bytes offset\n",
+ (int)(addr - sunxi_musb->mregs));
+ return 0;
+}
+
+static void sunxi_musb_writew(void __iomem *addr, unsigned offset, u16 data)
+{
+ if (addr == sunxi_musb->mregs) {
+ /* generic control or fifo control reg access */
+ switch (offset) {
+ case MUSB_INTRTX:
+ return writew(data, addr + SUNXI_MUSB_INTRTX);
+ case MUSB_INTRRX:
+ return writew(data, addr + SUNXI_MUSB_INTRRX);
+ case MUSB_INTRTXE:
+ return writew(data, addr + SUNXI_MUSB_INTRTXE);
+ case MUSB_INTRRXE:
+ return writew(data, addr + SUNXI_MUSB_INTRRXE);
+ case MUSB_FRAME:
+ return writew(data, addr + SUNXI_MUSB_FRAME);
+ case MUSB_TXFIFOADD:
+ return writew(data, addr + SUNXI_MUSB_TXFIFOADD);
+ case MUSB_RXFIFOADD:
+ return writew(data, addr + SUNXI_MUSB_RXFIFOADD);
+ default:
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown writew offset %u\n", offset);
+ return;
+ }
+ } else if (addr == (sunxi_musb->mregs + 0x80)) {
+ /* ep control reg access */
+ return writew(data, addr + offset);
+ }
+
+ dev_err(sunxi_musb->controller->parent,
+ "Error unknown writew at 0x%x bytes offset\n",
+ (int)(addr - sunxi_musb->mregs));
+}
+
+static const struct musb_platform_ops sunxi_musb_ops = {
+ .quirks = MUSB_INDEXED_EP,
+ .init = sunxi_musb_init,
+ .exit = sunxi_musb_exit,
+ .enable = sunxi_musb_enable,
+ .disable = sunxi_musb_disable,
+ .fifo_offset = sunxi_musb_fifo_offset,
+ .ep_offset = sunxi_musb_ep_offset,
+ .busctl_offset = sunxi_musb_busctl_offset,
+ .readb = sunxi_musb_readb,
+ .writeb = sunxi_musb_writeb,
+ .readw = sunxi_musb_readw,
+ .writew = sunxi_musb_writew,
+ .dma_init = sunxi_musb_dma_controller_create,
+ .dma_exit = sunxi_musb_dma_controller_destroy,
+ .set_vbus = sunxi_musb_set_vbus,
+ .pre_root_reset_end = sunxi_musb_pre_root_reset_end,
+ .post_root_reset_end = sunxi_musb_post_root_reset_end,
+};
+
+/* Allwinner OTG supports up to 5 endpoints */
+#define SUNXI_MUSB_MAX_EP_NUM 6
+#define SUNXI_MUSB_RAM_BITS 11
+
+static struct musb_fifo_cfg sunxi_musb_mode_cfg[] = {
+ MUSB_EP_FIFO_SINGLE(1, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(1, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(2, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(3, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(4, FIFO_RX, 512),
+ MUSB_EP_FIFO_SINGLE(5, FIFO_TX, 512),
+ MUSB_EP_FIFO_SINGLE(5, FIFO_RX, 512),
+};
+
+static struct musb_hdrc_config sunxi_musb_hdrc_config = {
+ .fifo_cfg = sunxi_musb_mode_cfg,
+ .fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg),
+ .multipoint = true,
+ .dyn_fifo = true,
+ .soft_con = true,
+ .num_eps = SUNXI_MUSB_MAX_EP_NUM,
+ .ram_bits = SUNXI_MUSB_RAM_BITS,
+ .dma = 0,
+};
+
+static int sunxi_musb_probe(struct platform_device *pdev)
+{
+ struct musb_hdrc_platform_data pdata;
+ struct platform_device_info pinfo;
+ struct sunxi_glue *glue;
+ struct device_node *np = pdev->dev.of_node;
+ int ret;
+
+ if (!np) {
+ dev_err(&pdev->dev, "Error no device tree node found\n");
+ return -EINVAL;
+ }
+
+ glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
+ if (!glue)
+ return -ENOMEM;
+
+ memset(&pdata, 0, sizeof(pdata));
+ switch (usb_get_dr_mode(&pdev->dev)) {
+#if defined CONFIG_USB_MUSB_DUAL_ROLE || defined CONFIG_USB_MUSB_HOST
+ case USB_DR_MODE_HOST:
+ pdata.mode = MUSB_PORT_MODE_HOST;
+ break;
+#endif
+#ifdef CONFIG_USB_MUSB_DUAL_ROLE
+ case USB_DR_MODE_OTG:
+ glue->extcon = extcon_get_edev_by_phandle(&pdev->dev, 0);
+ if (IS_ERR(glue->extcon)) {
+ if (PTR_ERR(glue->extcon) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_err(&pdev->dev, "Invalid or missing extcon\n");
+ return PTR_ERR(glue->extcon);
+ }
+ pdata.mode = MUSB_PORT_MODE_DUAL_ROLE;
+ break;
+#endif
+ default:
+ dev_err(&pdev->dev, "Invalid or missing 'dr_mode' property\n");
+ return -EINVAL;
+ }
+ pdata.platform_ops = &sunxi_musb_ops;
+ pdata.config = &sunxi_musb_hdrc_config;
+
+ glue->dev = &pdev->dev;
+ INIT_WORK(&glue->work, sunxi_musb_work);
+ glue->host_nb.notifier_call = sunxi_musb_host_notifier;
+
+ if (of_device_is_compatible(np, "allwinner,sun4i-a10-musb"))
+ set_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags);
+
+ if (of_device_is_compatible(np, "allwinner,sun6i-a31-musb"))
+ set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags);
+
+ if (of_device_is_compatible(np, "allwinner,sun8i-a33-musb")) {
+ set_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags);
+ set_bit(SUNXI_MUSB_FL_NO_CONFIGDATA, &glue->flags);
+ }
+
+ glue->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(glue->clk)) {
+ dev_err(&pdev->dev, "Error getting clock: %ld\n",
+ PTR_ERR(glue->clk));
+ return PTR_ERR(glue->clk);
+ }
+
+ if (test_bit(SUNXI_MUSB_FL_HAS_RESET, &glue->flags)) {
+ glue->rst = devm_reset_control_get(&pdev->dev, NULL);
+ if (IS_ERR(glue->rst)) {
+ if (PTR_ERR(glue->rst) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_err(&pdev->dev, "Error getting reset %ld\n",
+ PTR_ERR(glue->rst));
+ return PTR_ERR(glue->rst);
+ }
+ }
+
+ glue->phy = devm_phy_get(&pdev->dev, "usb");
+ if (IS_ERR(glue->phy)) {
+ if (PTR_ERR(glue->phy) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_err(&pdev->dev, "Error getting phy %ld\n",
+ PTR_ERR(glue->phy));
+ return PTR_ERR(glue->phy);
+ }
+
+ glue->usb_phy = usb_phy_generic_register();
+ if (IS_ERR(glue->usb_phy)) {
+ dev_err(&pdev->dev, "Error registering usb-phy %ld\n",
+ PTR_ERR(glue->usb_phy));
+ return PTR_ERR(glue->usb_phy);
+ }
+
+ glue->xceiv = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
+ if (IS_ERR(glue->xceiv)) {
+ ret = PTR_ERR(glue->xceiv);
+ dev_err(&pdev->dev, "Error getting usb-phy %d\n", ret);
+ goto err_unregister_usb_phy;
+ }
+
+ platform_set_drvdata(pdev, glue);
+
+ memset(&pinfo, 0, sizeof(pinfo));
+ pinfo.name = "musb-hdrc";
+ pinfo.id = PLATFORM_DEVID_AUTO;
+ pinfo.parent = &pdev->dev;
+ pinfo.res = pdev->resource;
+ pinfo.num_res = pdev->num_resources;
+ pinfo.data = &pdata;
+ pinfo.size_data = sizeof(pdata);
+
+ glue->musb = platform_device_register_full(&pinfo);
+ if (IS_ERR(glue->musb)) {
+ ret = PTR_ERR(glue->musb);
+ dev_err(&pdev->dev, "Error registering musb dev: %d\n", ret);
+ goto err_unregister_usb_phy;
+ }
+
+ return 0;
+
+err_unregister_usb_phy:
+ usb_phy_generic_unregister(glue->usb_phy);
+ return ret;
+}
+
+static int sunxi_musb_remove(struct platform_device *pdev)
+{
+ struct sunxi_glue *glue = platform_get_drvdata(pdev);
+ struct platform_device *usb_phy = glue->usb_phy;
+
+ platform_device_unregister(glue->musb); /* Frees glue ! */
+ usb_phy_generic_unregister(usb_phy);
+
+ return 0;
+}
+
+static const struct of_device_id sunxi_musb_match[] = {
+ { .compatible = "allwinner,sun4i-a10-musb", },
+ { .compatible = "allwinner,sun6i-a31-musb", },
+ { .compatible = "allwinner,sun8i-a33-musb", },
+ {}
+};
+
+static struct platform_driver sunxi_musb_driver = {
+ .probe = sunxi_musb_probe,
+ .remove = sunxi_musb_remove,
+ .driver = {
+ .name = "musb-sunxi",
+ .of_match_table = sunxi_musb_match,
+ },
+};
+module_platform_driver(sunxi_musb_driver);
+
+MODULE_DESCRIPTION("Allwinner sunxi MUSB Glue Layer");
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/usb/musb/tusb6010.c b/kernel/drivers/usb/musb/tusb6010.c
index 3a5ffd575..df7c9f46b 100644
--- a/kernel/drivers/usb/musb/tusb6010.c
+++ b/kernel/drivers/usb/musb/tusb6010.c
@@ -890,7 +890,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci)
dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src);
real_dma_src = ~real_dma_src & dma_src;
- if (tusb_dma_omap() && real_dma_src) {
+ if (tusb_dma_omap(musb) && real_dma_src) {
int tx_source = (real_dma_src & 0xffff);
int i;
@@ -1181,7 +1181,7 @@ static int tusb_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops tusb_ops = {
- .quirks = MUSB_IN_TUSB,
+ .quirks = MUSB_DMA_TUSB_OMAP | MUSB_IN_TUSB,
.init = tusb_musb_init,
.exit = tusb_musb_exit,
@@ -1192,6 +1192,10 @@ static const struct musb_platform_ops tusb_ops = {
.writeb = tusb_writeb,
.read_fifo = tusb_read_fifo,
.write_fifo = tusb_write_fifo,
+#ifdef CONFIG_USB_TUSB_OMAP_DMA
+ .dma_init = tusb_dma_controller_create,
+ .dma_exit = tusb_dma_controller_destroy,
+#endif
.enable = tusb_musb_enable,
.disable = tusb_musb_disable,
diff --git a/kernel/drivers/usb/musb/tusb6010.h b/kernel/drivers/usb/musb/tusb6010.h
index aec86c86c..72cdad23c 100644
--- a/kernel/drivers/usb/musb/tusb6010.h
+++ b/kernel/drivers/usb/musb/tusb6010.h
@@ -12,12 +12,6 @@
#ifndef __TUSB6010_H__
#define __TUSB6010_H__
-#ifdef CONFIG_USB_TUSB_OMAP_DMA
-#define tusb_dma_omap() 1
-#else
-#define tusb_dma_omap() 0
-#endif
-
/* VLYNQ control register. 32-bit at offset 0x000 */
#define TUSB_VLYNQ_CTRL 0x004
diff --git a/kernel/drivers/usb/musb/tusb6010_omap.c b/kernel/drivers/usb/musb/tusb6010_omap.c
index 3ce152c04..4c82077da 100644
--- a/kernel/drivers/usb/musb/tusb6010_omap.c
+++ b/kernel/drivers/usb/musb/tusb6010_omap.c
@@ -625,7 +625,7 @@ static void tusb_omap_dma_release(struct dma_channel *channel)
channel = NULL;
}
-void dma_controller_destroy(struct dma_controller *c)
+void tusb_dma_controller_destroy(struct dma_controller *c)
{
struct tusb_omap_dma *tusb_dma;
int i;
@@ -644,8 +644,10 @@ void dma_controller_destroy(struct dma_controller *c)
kfree(tusb_dma);
}
+EXPORT_SYMBOL_GPL(tusb_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base)
+struct dma_controller *
+tusb_dma_controller_create(struct musb *musb, void __iomem *base)
{
void __iomem *tbase = musb->ctrl_base;
struct tusb_omap_dma *tusb_dma;
@@ -701,7 +703,8 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
return &tusb_dma->controller;
cleanup:
- dma_controller_destroy(&tusb_dma->controller);
+ musb_dma_controller_destroy(&tusb_dma->controller);
out:
return NULL;
}
+EXPORT_SYMBOL_GPL(tusb_dma_controller_create);
diff --git a/kernel/drivers/usb/musb/ux500.c b/kernel/drivers/usb/musb/ux500.c
index abf727288..b2685e75a 100644
--- a/kernel/drivers/usb/musb/ux500.c
+++ b/kernel/drivers/usb/musb/ux500.c
@@ -188,7 +188,11 @@ static int ux500_musb_exit(struct musb *musb)
}
static const struct musb_platform_ops ux500_ops = {
- .quirks = MUSB_INDEXED_EP,
+ .quirks = MUSB_DMA_UX500 | MUSB_INDEXED_EP,
+#ifdef CONFIG_USB_UX500_DMA
+ .dma_init = ux500_dma_controller_create,
+ .dma_exit = ux500_dma_controller_destroy,
+#endif
.init = ux500_musb_init,
.exit = ux500_musb_exit,
.fifo_mode = 5,
@@ -338,7 +342,7 @@ static int ux500_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int ux500_suspend(struct device *dev)
{
struct ux500_glue *glue = dev_get_drvdata(dev);
@@ -375,6 +379,8 @@ static const struct of_device_id ux500_match[] = {
{}
};
+MODULE_DEVICE_TABLE(of, ux500_match);
+
static struct platform_driver ux500_driver = {
.probe = ux500_probe,
.remove = ux500_remove,
diff --git a/kernel/drivers/usb/musb/ux500_dma.c b/kernel/drivers/usb/musb/ux500_dma.c
index e93845c26..d0b6a1cd7 100644
--- a/kernel/drivers/usb/musb/ux500_dma.c
+++ b/kernel/drivers/usb/musb/ux500_dma.c
@@ -359,7 +359,7 @@ static int ux500_dma_controller_start(struct ux500_dma_controller *controller)
return 0;
}
-void dma_controller_destroy(struct dma_controller *c)
+void ux500_dma_controller_destroy(struct dma_controller *c)
{
struct ux500_dma_controller *controller = container_of(c,
struct ux500_dma_controller, controller);
@@ -367,9 +367,10 @@ void dma_controller_destroy(struct dma_controller *c)
ux500_dma_controller_stop(controller);
kfree(controller);
}
+EXPORT_SYMBOL_GPL(ux500_dma_controller_destroy);
-struct dma_controller *dma_controller_create(struct musb *musb,
- void __iomem *base)
+struct dma_controller *
+ux500_dma_controller_create(struct musb *musb, void __iomem *base)
{
struct ux500_dma_controller *controller;
struct platform_device *pdev = to_platform_device(musb->controller);
@@ -407,3 +408,4 @@ plat_get_fail:
kzalloc_fail:
return NULL;
}
+EXPORT_SYMBOL_GPL(ux500_dma_controller_create);
diff --git a/kernel/drivers/usb/phy/Kconfig b/kernel/drivers/usb/phy/Kconfig
index 2175678e6..22e8ecb6b 100644
--- a/kernel/drivers/usb/phy/Kconfig
+++ b/kernel/drivers/usb/phy/Kconfig
@@ -21,7 +21,6 @@ config AB8500_USB
config FSL_USB2_OTG
bool "Freescale USB OTG Transceiver Driver"
depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM && PM
- select USB_OTG
select USB_PHY
help
Enable this to support Freescale USB OTG transceiver.
@@ -91,7 +90,7 @@ config TWL6030_USB
config USB_GPIO_VBUS
tristate "GPIO based peripheral-only VBUS sensing 'transceiver'"
- depends on GPIOLIB
+ depends on GPIOLIB || COMPILE_TEST
select USB_PHY
help
Provides simple GPIO VBUS sensing for controllers with an
@@ -141,6 +140,7 @@ config USB_MSM_OTG
tristate "Qualcomm on-chip USB OTG controller support"
depends on (USB || USB_GADGET) && (ARCH_QCOM || COMPILE_TEST)
depends on RESET_CONTROLLER
+ depends on EXTCON
select USB_PHY
help
Enable this to support the USB OTG transceiver on Qualcomm chips. It
@@ -151,10 +151,23 @@ config USB_MSM_OTG
This driver is not supported on boards like trout which
has an external PHY.
+config USB_QCOM_8X16_PHY
+ tristate "Qualcomm APQ8016/MSM8916 on-chip USB PHY controller support"
+ depends on ARCH_QCOM || COMPILE_TEST
+ depends on RESET_CONTROLLER && EXTCON
+ select USB_PHY
+ select USB_ULPI_VIEWPORT
+ help
+ Enable this to support the USB transceiver on Qualcomm 8x16 chipsets.
+ It handles PHY initialization, clock management, power management,
+ and workarounds required after resetting the hardware.
+
+ To compile this driver as a module, choose M here: the
+ module will be called phy-qcom-8x16-usb.
+
config USB_MV_OTG
tristate "Marvell USB OTG support"
- depends on USB_EHCI_MV && USB_MV_UDC && PM
- select USB_OTG
+ depends on USB_EHCI_MV && USB_MV_UDC && PM && USB_OTG
select USB_PHY
help
Say Y here if you want to build Marvell USB OTG transciever
@@ -186,19 +199,6 @@ config USB_RCAR_PHY
To compile this driver as a module, choose M here: the
module will be called phy-rcar-usb.
-config USB_RCAR_GEN2_PHY
- tristate "Renesas R-Car Gen2 USB PHY support"
- depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST
- select USB_PHY
- help
- Say Y here to add support for the Renesas R-Car Gen2 USB PHY driver.
- It is typically used to control internal USB PHY for USBHS,
- and to configure shared USB channels 0 and 2.
- This driver supports R8A7790 and R8A7791.
-
- To compile this driver as a module, choose M here: the
- module will be called phy-rcar-gen2-usb.
-
config USB_ULPI
bool "Generic ULPI Transceiver Driver"
depends on ARM || ARM64
diff --git a/kernel/drivers/usb/phy/Makefile b/kernel/drivers/usb/phy/Makefile
index 75f2bba58..19c0dccbb 100644
--- a/kernel/drivers/usb/phy/Makefile
+++ b/kernel/drivers/usb/phy/Makefile
@@ -20,10 +20,10 @@ obj-$(CONFIG_USB_EHCI_TEGRA) += phy-tegra-usb.o
obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio-vbus-usb.o
obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o
obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o
+obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o
obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o
-obj-$(CONFIG_USB_RCAR_GEN2_PHY) += phy-rcar-gen2-usb.o
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o
diff --git a/kernel/drivers/usb/phy/phy-ab8500-usb.c b/kernel/drivers/usb/phy/phy-ab8500-usb.c
index 03ab0c699..0c912d395 100644
--- a/kernel/drivers/usb/phy/phy-ab8500-usb.c
+++ b/kernel/drivers/usb/phy/phy-ab8500-usb.c
@@ -1504,7 +1504,7 @@ static int ab8500_usb_remove(struct platform_device *pdev)
return 0;
}
-static struct platform_device_id ab8500_usb_devtype[] = {
+static const struct platform_device_id ab8500_usb_devtype[] = {
{ .name = "ab8500-usb", },
{ .name = "ab8540-usb", },
{ .name = "ab9540-usb", },
diff --git a/kernel/drivers/usb/phy/phy-generic.c b/kernel/drivers/usb/phy/phy-generic.c
index deee68eaf..5320cb864 100644
--- a/kernel/drivers/usb/phy/phy-generic.c
+++ b/kernel/drivers/usb/phy/phy-generic.c
@@ -218,11 +218,13 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
clk_rate = 0;
needs_vcc = of_property_read_bool(node, "vcc-supply");
- nop->gpiod_reset = devm_gpiod_get_optional(dev, "reset");
+ nop->gpiod_reset = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_ASIS);
err = PTR_ERR_OR_ZERO(nop->gpiod_reset);
if (!err) {
nop->gpiod_vbus = devm_gpiod_get_optional(dev,
- "vbus-detect");
+ "vbus-detect",
+ GPIOD_ASIS);
err = PTR_ERR_OR_ZERO(nop->gpiod_vbus);
}
} else if (pdata) {
@@ -230,7 +232,8 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
clk_rate = pdata->clk_rate;
needs_vcc = pdata->needs_vcc;
if (gpio_is_valid(pdata->gpio_reset)) {
- err = devm_gpio_request_one(dev, pdata->gpio_reset, 0,
+ err = devm_gpio_request_one(dev, pdata->gpio_reset,
+ GPIOF_ACTIVE_LOW,
dev_name(dev));
if (!err)
nop->gpiod_reset =
diff --git a/kernel/drivers/usb/phy/phy-isp1301.c b/kernel/drivers/usb/phy/phy-isp1301.c
index 8a55b37d1..db6815656 100644
--- a/kernel/drivers/usb/phy/phy-isp1301.c
+++ b/kernel/drivers/usb/phy/phy-isp1301.c
@@ -31,6 +31,7 @@ static const struct i2c_device_id isp1301_id[] = {
{ "isp1301", 0 },
{ }
};
+MODULE_DEVICE_TABLE(i2c, isp1301_id);
static struct i2c_client *isp1301_i2c_client;
diff --git a/kernel/drivers/usb/phy/phy-keystone.c b/kernel/drivers/usb/phy/phy-keystone.c
index e0556f783..01d4e4cdb 100644
--- a/kernel/drivers/usb/phy/phy-keystone.c
+++ b/kernel/drivers/usb/phy/phy-keystone.c
@@ -96,11 +96,7 @@ static int keystone_usbphy_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, k_phy);
- ret = usb_add_phy_dev(&k_phy->usb_phy_gen.phy);
- if (ret)
- return ret;
-
- return 0;
+ return usb_add_phy_dev(&k_phy->usb_phy_gen.phy);
}
static int keystone_usbphy_remove(struct platform_device *pdev)
diff --git a/kernel/drivers/usb/phy/phy-msm-usb.c b/kernel/drivers/usb/phy/phy-msm-usb.c
index c9156beea..970a30e15 100644
--- a/kernel/drivers/usb/phy/phy-msm-usb.c
+++ b/kernel/drivers/usb/phy/phy-msm-usb.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/slab.h>
@@ -32,6 +33,7 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/reboot.h>
#include <linux/reset.h>
#include <linux/usb.h>
@@ -240,8 +242,14 @@ static void ulpi_init(struct msm_otg *motg)
static int msm_phy_notify_disconnect(struct usb_phy *phy,
enum usb_device_speed speed)
{
+ struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
int val;
+ if (motg->manual_pullup) {
+ val = ULPI_MISC_A_VBUSVLDEXT | ULPI_MISC_A_VBUSVLDEXTSEL;
+ usb_phy_io_write(phy, val, ULPI_CLR(ULPI_MISC_A));
+ }
+
/*
* Put the transceiver in non-driving mode. Otherwise host
* may not detect soft-disconnection.
@@ -422,6 +430,24 @@ static int msm_phy_init(struct usb_phy *phy)
ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_FALL);
}
+ if (motg->manual_pullup) {
+ val = ULPI_MISC_A_VBUSVLDEXTSEL | ULPI_MISC_A_VBUSVLDEXT;
+ ulpi_write(phy, val, ULPI_SET(ULPI_MISC_A));
+
+ val = readl(USB_GENCONFIG_2);
+ val |= GENCONFIG_2_SESS_VLD_CTRL_EN;
+ writel(val, USB_GENCONFIG_2);
+
+ val = readl(USB_USBCMD);
+ val |= USBCMD_SESS_VLD_CTRL;
+ writel(val, USB_USBCMD);
+
+ val = ulpi_read(phy, ULPI_FUNC_CTRL);
+ val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
+ val |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
+ ulpi_write(phy, val, ULPI_FUNC_CTRL);
+ }
+
if (motg->phy_number)
writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2);
@@ -1436,10 +1462,50 @@ static const struct of_device_id msm_otg_dt_match[] = {
};
MODULE_DEVICE_TABLE(of, msm_otg_dt_match);
+static int msm_otg_vbus_notifier(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct msm_usb_cable *vbus = container_of(nb, struct msm_usb_cable, nb);
+ struct msm_otg *motg = container_of(vbus, struct msm_otg, vbus);
+
+ if (event)
+ set_bit(B_SESS_VLD, &motg->inputs);
+ else
+ clear_bit(B_SESS_VLD, &motg->inputs);
+
+ if (test_bit(B_SESS_VLD, &motg->inputs)) {
+ /* Switch D+/D- lines to Device connector */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ } else {
+ /* Switch D+/D- lines to Hub */
+ gpiod_set_value_cansleep(motg->switch_gpio, 1);
+ }
+
+ schedule_work(&motg->sm_work);
+
+ return NOTIFY_DONE;
+}
+
+static int msm_otg_id_notifier(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct msm_usb_cable *id = container_of(nb, struct msm_usb_cable, nb);
+ struct msm_otg *motg = container_of(id, struct msm_otg, id);
+
+ if (event)
+ clear_bit(ID, &motg->inputs);
+ else
+ set_bit(ID, &motg->inputs);
+
+ schedule_work(&motg->sm_work);
+
+ return NOTIFY_DONE;
+}
+
static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
{
struct msm_otg_platform_data *pdata;
- const struct of_device_id *id;
+ struct extcon_dev *ext_id, *ext_vbus;
struct device_node *node = pdev->dev.of_node;
struct property *prop;
int len, ret, words;
@@ -1451,8 +1517,9 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
motg->pdata = pdata;
- id = of_match_device(msm_otg_dt_match, &pdev->dev);
- pdata->phy_type = (enum msm_usb_phy_type) id->data;
+ pdata->phy_type = (enum msm_usb_phy_type)of_device_get_match_data(&pdev->dev);
+ if (!pdata->phy_type)
+ return 1;
motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
if (IS_ERR(motg->link_rst))
@@ -1462,7 +1529,7 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
if (IS_ERR(motg->phy_rst))
motg->phy_rst = NULL;
- pdata->mode = of_usb_get_dr_mode(node);
+ pdata->mode = usb_get_dr_mode(&pdev->dev);
if (pdata->mode == USB_DR_MODE_UNKNOWN)
pdata->mode = USB_DR_MODE_OTG;
@@ -1487,6 +1554,63 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
motg->vdd_levels[VDD_LEVEL_MAX] = tmp[VDD_LEVEL_MAX];
}
+ motg->manual_pullup = of_property_read_bool(node, "qcom,manual-pullup");
+
+ motg->switch_gpio = devm_gpiod_get_optional(&pdev->dev, "switch",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(motg->switch_gpio))
+ return PTR_ERR(motg->switch_gpio);
+
+ ext_id = ERR_PTR(-ENODEV);
+ ext_vbus = ERR_PTR(-ENODEV);
+ if (of_property_read_bool(node, "extcon")) {
+
+ /* Each one of them is not mandatory */
+ ext_vbus = extcon_get_edev_by_phandle(&pdev->dev, 0);
+ if (IS_ERR(ext_vbus) && PTR_ERR(ext_vbus) != -ENODEV)
+ return PTR_ERR(ext_vbus);
+
+ ext_id = extcon_get_edev_by_phandle(&pdev->dev, 1);
+ if (IS_ERR(ext_id) && PTR_ERR(ext_id) != -ENODEV)
+ return PTR_ERR(ext_id);
+ }
+
+ if (!IS_ERR(ext_vbus)) {
+ motg->vbus.extcon = ext_vbus;
+ motg->vbus.nb.notifier_call = msm_otg_vbus_notifier;
+ ret = extcon_register_notifier(ext_vbus, EXTCON_USB,
+ &motg->vbus.nb);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "register VBUS notifier failed\n");
+ return ret;
+ }
+
+ ret = extcon_get_cable_state_(ext_vbus, EXTCON_USB);
+ if (ret)
+ set_bit(B_SESS_VLD, &motg->inputs);
+ else
+ clear_bit(B_SESS_VLD, &motg->inputs);
+ }
+
+ if (!IS_ERR(ext_id)) {
+ motg->id.extcon = ext_id;
+ motg->id.nb.notifier_call = msm_otg_id_notifier;
+ ret = extcon_register_notifier(ext_id, EXTCON_USB_HOST,
+ &motg->id.nb);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "register ID notifier failed\n");
+ extcon_unregister_notifier(motg->vbus.extcon,
+ EXTCON_USB, &motg->vbus.nb);
+ return ret;
+ }
+
+ ret = extcon_get_cable_state_(ext_id, EXTCON_USB_HOST);
+ if (ret)
+ clear_bit(ID, &motg->inputs);
+ else
+ set_bit(ID, &motg->inputs);
+ }
+
prop = of_find_property(node, "qcom,phy-init-sequence", &len);
if (!prop || !len)
return 0;
@@ -1510,6 +1634,19 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
return 0;
}
+static int msm_otg_reboot_notify(struct notifier_block *this,
+ unsigned long code, void *unused)
+{
+ struct msm_otg *motg = container_of(this, struct msm_otg, reboot);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot
+ */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ return NOTIFY_DONE;
+}
+
static int msm_otg_probe(struct platform_device *pdev)
{
struct regulator_bulk_data regs[3];
@@ -1525,15 +1662,6 @@ static int msm_otg_probe(struct platform_device *pdev)
if (!motg)
return -ENOMEM;
- pdata = dev_get_platdata(&pdev->dev);
- if (!pdata) {
- if (!np)
- return -ENXIO;
- ret = msm_otg_read_dt(pdev, motg);
- if (ret)
- return ret;
- }
-
motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
GFP_KERNEL);
if (!motg->phy.otg)
@@ -1575,6 +1703,15 @@ static int msm_otg_probe(struct platform_device *pdev)
if (!motg->regs)
return -ENOMEM;
+ pdata = dev_get_platdata(&pdev->dev);
+ if (!pdata) {
+ if (!np)
+ return -ENXIO;
+ ret = msm_otg_read_dt(pdev, motg);
+ if (ret)
+ return ret;
+ }
+
/*
* NOTE: The PHYs can be multiplexed between the chipidea controller
* and the dwc3 controller, using a single bit. It is important that
@@ -1582,8 +1719,10 @@ static int msm_otg_probe(struct platform_device *pdev)
*/
if (motg->phy_number) {
phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
- if (!phy_select)
- return -ENOMEM;
+ if (!phy_select) {
+ ret = -ENOMEM;
+ goto unregister_extcon;
+ }
/* Enable second PHY with the OTG port */
writel(0x1, phy_select);
}
@@ -1593,7 +1732,8 @@ static int msm_otg_probe(struct platform_device *pdev)
motg->irq = platform_get_irq(pdev, 0);
if (motg->irq < 0) {
dev_err(&pdev->dev, "platform_get_irq failed\n");
- return motg->irq;
+ ret = motg->irq;
+ goto unregister_extcon;
}
regs[0].supply = "vddcx";
@@ -1602,7 +1742,7 @@ static int msm_otg_probe(struct platform_device *pdev)
ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(regs), regs);
if (ret)
- return ret;
+ goto unregister_extcon;
motg->vddcx = regs[0].consumer;
motg->v3p3 = regs[1].consumer;
@@ -1674,6 +1814,17 @@ static int msm_otg_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "Can not create mode change file\n");
}
+ if (test_bit(B_SESS_VLD, &motg->inputs)) {
+ /* Switch D+/D- lines to Device connector */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+ } else {
+ /* Switch D+/D- lines to Hub */
+ gpiod_set_value_cansleep(motg->switch_gpio, 1);
+ }
+
+ motg->reboot.notifier_call = msm_otg_reboot_notify;
+ register_reboot_notifier(&motg->reboot);
+
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
@@ -1688,6 +1839,12 @@ disable_clks:
clk_disable_unprepare(motg->clk);
if (!IS_ERR(motg->core_clk))
clk_disable_unprepare(motg->core_clk);
+unregister_extcon:
+ extcon_unregister_notifier(motg->id.extcon,
+ EXTCON_USB_HOST, &motg->id.nb);
+ extcon_unregister_notifier(motg->vbus.extcon,
+ EXTCON_USB, &motg->vbus.nb);
+
return ret;
}
@@ -1700,6 +1857,17 @@ static int msm_otg_remove(struct platform_device *pdev)
if (phy->otg->host || phy->otg->gadget)
return -EBUSY;
+ unregister_reboot_notifier(&motg->reboot);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot
+ */
+ gpiod_set_value_cansleep(motg->switch_gpio, 0);
+
+ extcon_unregister_notifier(motg->id.extcon, EXTCON_USB_HOST, &motg->id.nb);
+ extcon_unregister_notifier(motg->vbus.extcon, EXTCON_USB, &motg->vbus.nb);
+
msm_otg_debugfs_cleanup();
cancel_delayed_work_sync(&motg->chg_work);
cancel_work_sync(&motg->sm_work);
diff --git a/kernel/drivers/usb/phy/phy-mxs-usb.c b/kernel/drivers/usb/phy/phy-mxs-usb.c
index 3fcc0483a..c2936dc48 100644
--- a/kernel/drivers/usb/phy/phy-mxs-usb.c
+++ b/kernel/drivers/usb/phy/phy-mxs-usb.c
@@ -143,12 +143,17 @@ static const struct mxs_phy_data imx6sx_phy_data = {
.flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
};
+static const struct mxs_phy_data imx6ul_phy_data = {
+ .flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
+};
+
static const struct of_device_id mxs_phy_dt_ids[] = {
{ .compatible = "fsl,imx6sx-usbphy", .data = &imx6sx_phy_data, },
{ .compatible = "fsl,imx6sl-usbphy", .data = &imx6sl_phy_data, },
{ .compatible = "fsl,imx6q-usbphy", .data = &imx6q_phy_data, },
{ .compatible = "fsl,imx23-usbphy", .data = &imx23_phy_data, },
{ .compatible = "fsl,vf610-usbphy", .data = &vf610_phy_data, },
+ { .compatible = "fsl,imx6ul-usbphy", .data = &imx6ul_phy_data, },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids);
@@ -452,10 +457,13 @@ static int mxs_phy_probe(struct platform_device *pdev)
struct clk *clk;
struct mxs_phy *mxs_phy;
int ret;
- const struct of_device_id *of_id =
- of_match_device(mxs_phy_dt_ids, &pdev->dev);
+ const struct of_device_id *of_id;
struct device_node *np = pdev->dev.of_node;
+ of_id = of_match_device(mxs_phy_dt_ids, &pdev->dev);
+ if (!of_id)
+ return -ENODEV;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
@@ -506,11 +514,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
device_set_wakeup_capable(&pdev->dev, true);
- ret = usb_add_phy_dev(&mxs_phy->phy);
- if (ret)
- return ret;
-
- return 0;
+ return usb_add_phy_dev(&mxs_phy->phy);
}
static int mxs_phy_remove(struct platform_device *pdev)
diff --git a/kernel/drivers/usb/phy/phy-omap-otg.c b/kernel/drivers/usb/phy/phy-omap-otg.c
index 56ee76030..c4bf2de6d 100644
--- a/kernel/drivers/usb/phy/phy-omap-otg.c
+++ b/kernel/drivers/usb/phy/phy-omap-otg.c
@@ -30,8 +30,7 @@ struct otg_device {
void __iomem *base;
bool id;
bool vbus;
- struct extcon_specific_cable_nb vbus_dev;
- struct extcon_specific_cable_nb id_dev;
+ struct extcon_dev *extcon;
struct notifier_block vbus_nb;
struct notifier_block id_nb;
};
@@ -115,23 +114,23 @@ static int omap_otg_probe(struct platform_device *pdev)
if (IS_ERR(otg_dev->base))
return PTR_ERR(otg_dev->base);
+ otg_dev->extcon = extcon;
otg_dev->id_nb.notifier_call = omap_otg_id_notifier;
otg_dev->vbus_nb.notifier_call = omap_otg_vbus_notifier;
- ret = extcon_register_interest(&otg_dev->id_dev, config->extcon,
- "USB-HOST", &otg_dev->id_nb);
+ ret = extcon_register_notifier(extcon, EXTCON_USB_HOST, &otg_dev->id_nb);
if (ret)
return ret;
- ret = extcon_register_interest(&otg_dev->vbus_dev, config->extcon,
- "USB", &otg_dev->vbus_nb);
+ ret = extcon_register_notifier(extcon, EXTCON_USB, &otg_dev->vbus_nb);
if (ret) {
- extcon_unregister_interest(&otg_dev->id_dev);
+ extcon_unregister_notifier(extcon, EXTCON_USB_HOST,
+ &otg_dev->id_nb);
return ret;
}
- otg_dev->id = extcon_get_cable_state(extcon, "USB-HOST");
- otg_dev->vbus = extcon_get_cable_state(extcon, "USB");
+ otg_dev->id = extcon_get_cable_state_(extcon, EXTCON_USB_HOST);
+ otg_dev->vbus = extcon_get_cable_state_(extcon, EXTCON_USB);
omap_otg_set_mode(otg_dev);
rev = readl(otg_dev->base);
@@ -147,9 +146,10 @@ static int omap_otg_probe(struct platform_device *pdev)
static int omap_otg_remove(struct platform_device *pdev)
{
struct otg_device *otg_dev = platform_get_drvdata(pdev);
+ struct extcon_dev *edev = otg_dev->extcon;
- extcon_unregister_interest(&otg_dev->id_dev);
- extcon_unregister_interest(&otg_dev->vbus_dev);
+ extcon_unregister_notifier(edev, EXTCON_USB_HOST,&otg_dev->id_nb);
+ extcon_unregister_notifier(edev, EXTCON_USB, &otg_dev->vbus_nb);
return 0;
}
diff --git a/kernel/drivers/usb/phy/phy-qcom-8x16-usb.c b/kernel/drivers/usb/phy/phy-qcom-8x16-usb.c
new file mode 100644
index 000000000..579587d97
--- /dev/null
+++ b/kernel/drivers/usb/phy/phy-qcom-8x16-usb.c
@@ -0,0 +1,437 @@
+/*
+ * Copyright (c) 2015, Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/extcon.h>
+#include <linux/gpio/consumer.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/ulpi.h>
+
+#define HSPHY_AHBBURST 0x0090
+#define HSPHY_AHBMODE 0x0098
+#define HSPHY_GENCONFIG 0x009c
+#define HSPHY_GENCONFIG_2 0x00a0
+
+#define HSPHY_USBCMD 0x0140
+#define HSPHY_ULPI_VIEWPORT 0x0170
+#define HSPHY_CTRL 0x0240
+
+#define HSPHY_TXFIFO_IDLE_FORCE_DIS BIT(4)
+#define HSPHY_SESS_VLD_CTRL_EN BIT(7)
+#define HSPHY_POR_ASSERT BIT(0)
+#define HSPHY_RETEN BIT(1)
+
+#define HSPHY_SESS_VLD_CTRL BIT(25)
+
+#define ULPI_PWR_CLK_MNG_REG 0x88
+#define ULPI_PWR_OTG_COMP_DISABLE BIT(0)
+
+#define ULPI_MISC_A 0x96
+#define ULPI_MISC_A_VBUSVLDEXTSEL BIT(1)
+#define ULPI_MISC_A_VBUSVLDEXT BIT(0)
+
+#define HSPHY_3P3_MIN 3050000 /* uV */
+#define HSPHY_3P3_MAX 3300000 /* uV */
+
+#define HSPHY_1P8_MIN 1800000 /* uV */
+#define HSPHY_1P8_MAX 1800000 /* uV */
+
+#define HSPHY_VDD_MIN 5
+#define HSPHY_VDD_MAX 7
+
+struct phy_8x16 {
+ struct usb_phy phy;
+ void __iomem *regs;
+ struct clk *core_clk;
+ struct clk *iface_clk;
+ struct regulator *v3p3;
+ struct regulator *v1p8;
+ struct regulator *vdd;
+
+ struct reset_control *phy_reset;
+
+ struct extcon_dev *vbus_edev;
+ struct notifier_block vbus_notify;
+
+ struct gpio_desc *switch_gpio;
+ struct notifier_block reboot_notify;
+};
+
+static int phy_8x16_regulators_enable(struct phy_8x16 *qphy)
+{
+ int ret;
+
+ ret = regulator_set_voltage(qphy->vdd, HSPHY_VDD_MIN, HSPHY_VDD_MAX);
+ if (ret)
+ return ret;
+
+ ret = regulator_enable(qphy->vdd);
+ if (ret)
+ return ret;
+
+ ret = regulator_set_voltage(qphy->v3p3, HSPHY_3P3_MIN, HSPHY_3P3_MAX);
+ if (ret)
+ goto off_vdd;
+
+ ret = regulator_enable(qphy->v3p3);
+ if (ret)
+ goto off_vdd;
+
+ ret = regulator_set_voltage(qphy->v1p8, HSPHY_1P8_MIN, HSPHY_1P8_MAX);
+ if (ret)
+ goto off_3p3;
+
+ ret = regulator_enable(qphy->v1p8);
+ if (ret)
+ goto off_3p3;
+
+ return 0;
+
+off_3p3:
+ regulator_disable(qphy->v3p3);
+off_vdd:
+ regulator_disable(qphy->vdd);
+
+ return ret;
+}
+
+static void phy_8x16_regulators_disable(struct phy_8x16 *qphy)
+{
+ regulator_disable(qphy->v1p8);
+ regulator_disable(qphy->v3p3);
+ regulator_disable(qphy->vdd);
+}
+
+static int phy_8x16_notify_connect(struct usb_phy *phy,
+ enum usb_device_speed speed)
+{
+ struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
+ u32 val;
+
+ val = ULPI_MISC_A_VBUSVLDEXTSEL | ULPI_MISC_A_VBUSVLDEXT;
+ usb_phy_io_write(&qphy->phy, val, ULPI_SET(ULPI_MISC_A));
+
+ val = readl(qphy->regs + HSPHY_USBCMD);
+ val |= HSPHY_SESS_VLD_CTRL;
+ writel(val, qphy->regs + HSPHY_USBCMD);
+
+ return 0;
+}
+
+static int phy_8x16_notify_disconnect(struct usb_phy *phy,
+ enum usb_device_speed speed)
+{
+ struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
+ u32 val;
+
+ val = ULPI_MISC_A_VBUSVLDEXT | ULPI_MISC_A_VBUSVLDEXTSEL;
+ usb_phy_io_write(&qphy->phy, val, ULPI_CLR(ULPI_MISC_A));
+
+ val = readl(qphy->regs + HSPHY_USBCMD);
+ val &= ~HSPHY_SESS_VLD_CTRL;
+ writel(val, qphy->regs + HSPHY_USBCMD);
+
+ return 0;
+}
+
+static int phy_8x16_vbus_on(struct phy_8x16 *qphy)
+{
+ phy_8x16_notify_connect(&qphy->phy, USB_SPEED_UNKNOWN);
+
+ /* Switch D+/D- lines to Device connector */
+ gpiod_set_value_cansleep(qphy->switch_gpio, 0);
+
+ return 0;
+}
+
+static int phy_8x16_vbus_off(struct phy_8x16 *qphy)
+{
+ phy_8x16_notify_disconnect(&qphy->phy, USB_SPEED_UNKNOWN);
+
+ /* Switch D+/D- lines to USB HUB */
+ gpiod_set_value_cansleep(qphy->switch_gpio, 1);
+
+ return 0;
+}
+
+static int phy_8x16_vbus_notify(struct notifier_block *nb, unsigned long event,
+ void *ptr)
+{
+ struct phy_8x16 *qphy = container_of(nb, struct phy_8x16, vbus_notify);
+
+ if (event)
+ phy_8x16_vbus_on(qphy);
+ else
+ phy_8x16_vbus_off(qphy);
+
+ return NOTIFY_DONE;
+}
+
+static int phy_8x16_init(struct usb_phy *phy)
+{
+ struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
+ u32 val, init[] = {0x44, 0x6B, 0x24, 0x13};
+ u32 addr = ULPI_EXT_VENDOR_SPECIFIC;
+ int idx, state;
+
+ for (idx = 0; idx < ARRAY_SIZE(init); idx++)
+ usb_phy_io_write(phy, init[idx], addr + idx);
+
+ reset_control_reset(qphy->phy_reset);
+
+ /* Assert USB HSPHY_POR */
+ val = readl(qphy->regs + HSPHY_CTRL);
+ val |= HSPHY_POR_ASSERT;
+ writel(val, qphy->regs + HSPHY_CTRL);
+
+ /*
+ * wait for minimum 10 microseconds as suggested in HPG.
+ * Use a slightly larger value since the exact value didn't
+ * work 100% of the time.
+ */
+ usleep_range(12, 15);
+
+ /* Deassert USB HSPHY_POR */
+ val = readl(qphy->regs + HSPHY_CTRL);
+ val &= ~HSPHY_POR_ASSERT;
+ writel(val, qphy->regs + HSPHY_CTRL);
+
+ usleep_range(10, 15);
+
+ writel(0x00, qphy->regs + HSPHY_AHBBURST);
+ writel(0x08, qphy->regs + HSPHY_AHBMODE);
+
+ /* workaround for rx buffer collision issue */
+ val = readl(qphy->regs + HSPHY_GENCONFIG);
+ val &= ~HSPHY_TXFIFO_IDLE_FORCE_DIS;
+ writel(val, qphy->regs + HSPHY_GENCONFIG);
+
+ val = readl(qphy->regs + HSPHY_GENCONFIG_2);
+ val |= HSPHY_SESS_VLD_CTRL_EN;
+ writel(val, qphy->regs + HSPHY_GENCONFIG_2);
+
+ val = ULPI_PWR_OTG_COMP_DISABLE;
+ usb_phy_io_write(phy, val, ULPI_SET(ULPI_PWR_CLK_MNG_REG));
+
+ state = extcon_get_cable_state_(qphy->vbus_edev, EXTCON_USB);
+ if (state)
+ phy_8x16_vbus_on(qphy);
+ else
+ phy_8x16_vbus_off(qphy);
+
+ val = usb_phy_io_read(&qphy->phy, ULPI_FUNC_CTRL);
+ val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
+ val |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
+ usb_phy_io_write(&qphy->phy, val, ULPI_FUNC_CTRL);
+
+ return 0;
+}
+
+static void phy_8x16_shutdown(struct usb_phy *phy)
+{
+ u32 val;
+
+ /* Put the controller in non-driving mode */
+ val = usb_phy_io_read(phy, ULPI_FUNC_CTRL);
+ val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
+ val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
+ usb_phy_io_write(phy, val, ULPI_FUNC_CTRL);
+}
+
+static int phy_8x16_read_devicetree(struct phy_8x16 *qphy)
+{
+ struct regulator_bulk_data regs[3];
+ struct device *dev = qphy->phy.dev;
+ int ret;
+
+ qphy->core_clk = devm_clk_get(dev, "core");
+ if (IS_ERR(qphy->core_clk))
+ return PTR_ERR(qphy->core_clk);
+
+ qphy->iface_clk = devm_clk_get(dev, "iface");
+ if (IS_ERR(qphy->iface_clk))
+ return PTR_ERR(qphy->iface_clk);
+
+ regs[0].supply = "v3p3";
+ regs[1].supply = "v1p8";
+ regs[2].supply = "vddcx";
+
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(regs), regs);
+ if (ret)
+ return ret;
+
+ qphy->v3p3 = regs[0].consumer;
+ qphy->v1p8 = regs[1].consumer;
+ qphy->vdd = regs[2].consumer;
+
+ qphy->phy_reset = devm_reset_control_get(dev, "phy");
+ if (IS_ERR(qphy->phy_reset))
+ return PTR_ERR(qphy->phy_reset);
+
+ qphy->switch_gpio = devm_gpiod_get_optional(dev, "switch",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(qphy->switch_gpio))
+ return PTR_ERR(qphy->switch_gpio);
+
+ return 0;
+}
+
+static int phy_8x16_reboot_notify(struct notifier_block *this,
+ unsigned long code, void *unused)
+{
+ struct phy_8x16 *qphy;
+
+ qphy = container_of(this, struct phy_8x16, reboot_notify);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot_notify
+ */
+ gpiod_set_value_cansleep(qphy->switch_gpio, 0);
+ return NOTIFY_DONE;
+}
+
+static int phy_8x16_probe(struct platform_device *pdev)
+{
+ struct phy_8x16 *qphy;
+ struct resource *res;
+ struct usb_phy *phy;
+ int ret;
+
+ qphy = devm_kzalloc(&pdev->dev, sizeof(*qphy), GFP_KERNEL);
+ if (!qphy)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, qphy);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+
+ qphy->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!qphy->regs)
+ return -ENOMEM;
+
+ phy = &qphy->phy;
+ phy->dev = &pdev->dev;
+ phy->label = dev_name(&pdev->dev);
+ phy->init = phy_8x16_init;
+ phy->shutdown = phy_8x16_shutdown;
+ phy->notify_connect = phy_8x16_notify_connect;
+ phy->notify_disconnect = phy_8x16_notify_disconnect;
+ phy->io_priv = qphy->regs + HSPHY_ULPI_VIEWPORT;
+ phy->io_ops = &ulpi_viewport_access_ops;
+ phy->type = USB_PHY_TYPE_USB2;
+
+ ret = phy_8x16_read_devicetree(qphy);
+ if (ret < 0)
+ return ret;
+
+ qphy->vbus_edev = extcon_get_edev_by_phandle(phy->dev, 0);
+ if (IS_ERR(qphy->vbus_edev))
+ return PTR_ERR(qphy->vbus_edev);
+
+ ret = clk_set_rate(qphy->core_clk, INT_MAX);
+ if (ret < 0)
+ dev_dbg(phy->dev, "Can't boost core clock\n");
+
+ ret = clk_prepare_enable(qphy->core_clk);
+ if (ret < 0)
+ return ret;
+
+ ret = clk_prepare_enable(qphy->iface_clk);
+ if (ret < 0)
+ goto off_core;
+
+ ret = phy_8x16_regulators_enable(qphy);
+ if (0 && ret)
+ goto off_clks;
+
+ qphy->vbus_notify.notifier_call = phy_8x16_vbus_notify;
+ ret = extcon_register_notifier(qphy->vbus_edev, EXTCON_USB,
+ &qphy->vbus_notify);
+ if (ret < 0)
+ goto off_power;
+
+ ret = usb_add_phy_dev(&qphy->phy);
+ if (ret)
+ goto off_extcon;
+
+ qphy->reboot_notify.notifier_call = phy_8x16_reboot_notify;
+ register_reboot_notifier(&qphy->reboot_notify);
+
+ return 0;
+
+off_extcon:
+ extcon_unregister_notifier(qphy->vbus_edev, EXTCON_USB,
+ &qphy->vbus_notify);
+off_power:
+ phy_8x16_regulators_disable(qphy);
+off_clks:
+ clk_disable_unprepare(qphy->iface_clk);
+off_core:
+ clk_disable_unprepare(qphy->core_clk);
+ return ret;
+}
+
+static int phy_8x16_remove(struct platform_device *pdev)
+{
+ struct phy_8x16 *qphy = platform_get_drvdata(pdev);
+
+ unregister_reboot_notifier(&qphy->reboot_notify);
+ extcon_unregister_notifier(qphy->vbus_edev, EXTCON_USB,
+ &qphy->vbus_notify);
+
+ /*
+ * Ensure that D+/D- lines are routed to uB connector, so
+ * we could load bootloader/kernel at next reboot_notify
+ */
+ gpiod_set_value_cansleep(qphy->switch_gpio, 0);
+
+ usb_remove_phy(&qphy->phy);
+
+ clk_disable_unprepare(qphy->iface_clk);
+ clk_disable_unprepare(qphy->core_clk);
+ phy_8x16_regulators_disable(qphy);
+ return 0;
+}
+
+static const struct of_device_id phy_8x16_dt_match[] = {
+ { .compatible = "qcom,usb-8x16-phy" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, phy_8x16_dt_match);
+
+static struct platform_driver phy_8x16_driver = {
+ .probe = phy_8x16_probe,
+ .remove = phy_8x16_remove,
+ .driver = {
+ .name = "phy-qcom-8x16-usb",
+ .of_match_table = phy_8x16_dt_match,
+ },
+};
+module_platform_driver(phy_8x16_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Qualcomm APQ8016/MSM8916 chipsets USB transceiver driver");
diff --git a/kernel/drivers/usb/phy/phy-rcar-gen2-usb.c b/kernel/drivers/usb/phy/phy-rcar-gen2-usb.c
deleted file mode 100644
index f81800b65..000000000
--- a/kernel/drivers/usb/phy/phy-rcar-gen2-usb.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * Renesas R-Car Gen2 USB phy driver
- *
- * Copyright (C) 2013 Renesas Solutions Corp.
- * Copyright (C) 2013 Cogent Embedded, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_data/usb-rcar-gen2-phy.h>
-#include <linux/platform_device.h>
-#include <linux/spinlock.h>
-#include <linux/usb/otg.h>
-
-struct rcar_gen2_usb_phy_priv {
- struct usb_phy phy;
- void __iomem *base;
- struct clk *clk;
- spinlock_t lock;
- int usecount;
- u32 ugctrl2;
-};
-
-#define usb_phy_to_priv(p) container_of(p, struct rcar_gen2_usb_phy_priv, phy)
-
-/* Low Power Status register */
-#define USBHS_LPSTS_REG 0x02
-#define USBHS_LPSTS_SUSPM (1 << 14)
-
-/* USB General control register */
-#define USBHS_UGCTRL_REG 0x80
-#define USBHS_UGCTRL_CONNECT (1 << 2)
-#define USBHS_UGCTRL_PLLRESET (1 << 0)
-
-/* USB General control register 2 */
-#define USBHS_UGCTRL2_REG 0x84
-#define USBHS_UGCTRL2_USB0_PCI (1 << 4)
-#define USBHS_UGCTRL2_USB0_HS (3 << 4)
-#define USBHS_UGCTRL2_USB2_PCI (0 << 31)
-#define USBHS_UGCTRL2_USB2_SS (1 << 31)
-
-/* USB General status register */
-#define USBHS_UGSTS_REG 0x88
-#define USBHS_UGSTS_LOCK (1 << 8)
-
-/* Enable USBHS internal phy */
-static int __rcar_gen2_usbhs_phy_enable(void __iomem *base)
-{
- u32 val;
- int i;
-
- /* USBHS PHY power on */
- val = ioread32(base + USBHS_UGCTRL_REG);
- val &= ~USBHS_UGCTRL_PLLRESET;
- iowrite32(val, base + USBHS_UGCTRL_REG);
-
- val = ioread16(base + USBHS_LPSTS_REG);
- val |= USBHS_LPSTS_SUSPM;
- iowrite16(val, base + USBHS_LPSTS_REG);
-
- for (i = 0; i < 20; i++) {
- val = ioread32(base + USBHS_UGSTS_REG);
- if ((val & USBHS_UGSTS_LOCK) == USBHS_UGSTS_LOCK) {
- val = ioread32(base + USBHS_UGCTRL_REG);
- val |= USBHS_UGCTRL_CONNECT;
- iowrite32(val, base + USBHS_UGCTRL_REG);
- return 0;
- }
- udelay(1);
- }
-
- /* Timed out waiting for the PLL lock */
- return -ETIMEDOUT;
-}
-
-/* Disable USBHS internal phy */
-static int __rcar_gen2_usbhs_phy_disable(void __iomem *base)
-{
- u32 val;
-
- /* USBHS PHY power off */
- val = ioread32(base + USBHS_UGCTRL_REG);
- val &= ~USBHS_UGCTRL_CONNECT;
- iowrite32(val, base + USBHS_UGCTRL_REG);
-
- val = ioread16(base + USBHS_LPSTS_REG);
- val &= ~USBHS_LPSTS_SUSPM;
- iowrite16(val, base + USBHS_LPSTS_REG);
-
- val = ioread32(base + USBHS_UGCTRL_REG);
- val |= USBHS_UGCTRL_PLLRESET;
- iowrite32(val, base + USBHS_UGCTRL_REG);
- return 0;
-}
-
-/* Setup USB channels */
-static void __rcar_gen2_usb_phy_init(struct rcar_gen2_usb_phy_priv *priv)
-{
- u32 val;
-
- clk_prepare_enable(priv->clk);
-
- /* Set USB channels in the USBHS UGCTRL2 register */
- val = ioread32(priv->base + USBHS_UGCTRL2_REG);
- val &= ~(USBHS_UGCTRL2_USB0_HS | USBHS_UGCTRL2_USB2_SS);
- val |= priv->ugctrl2;
- iowrite32(val, priv->base + USBHS_UGCTRL2_REG);
-}
-
-/* Shutdown USB channels */
-static void __rcar_gen2_usb_phy_shutdown(struct rcar_gen2_usb_phy_priv *priv)
-{
- __rcar_gen2_usbhs_phy_disable(priv->base);
- clk_disable_unprepare(priv->clk);
-}
-
-static int rcar_gen2_usb_phy_set_suspend(struct usb_phy *phy, int suspend)
-{
- struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
- unsigned long flags;
- int retval;
-
- spin_lock_irqsave(&priv->lock, flags);
- retval = suspend ? __rcar_gen2_usbhs_phy_disable(priv->base) :
- __rcar_gen2_usbhs_phy_enable(priv->base);
- spin_unlock_irqrestore(&priv->lock, flags);
- return retval;
-}
-
-static int rcar_gen2_usb_phy_init(struct usb_phy *phy)
-{
- struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- /*
- * Enable the clock and setup USB channels
- * if it's the first user
- */
- if (!priv->usecount++)
- __rcar_gen2_usb_phy_init(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
-}
-
-static void rcar_gen2_usb_phy_shutdown(struct usb_phy *phy)
-{
- struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!priv->usecount) {
- dev_warn(phy->dev, "Trying to disable phy with 0 usecount\n");
- goto out;
- }
-
- /* Disable everything if it's the last user */
- if (!--priv->usecount)
- __rcar_gen2_usb_phy_shutdown(priv);
-out:
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static int rcar_gen2_usb_phy_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct rcar_gen2_phy_platform_data *pdata;
- struct rcar_gen2_usb_phy_priv *priv;
- struct resource *res;
- void __iomem *base;
- struct clk *clk;
- int retval;
-
- pdata = dev_get_platdata(dev);
- if (!pdata) {
- dev_err(dev, "No platform data\n");
- return -EINVAL;
- }
-
- clk = devm_clk_get(dev, "usbhs");
- if (IS_ERR(clk)) {
- dev_err(dev, "Can't get the clock\n");
- return PTR_ERR(clk);
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- base = devm_ioremap_resource(dev, res);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- spin_lock_init(&priv->lock);
- priv->clk = clk;
- priv->base = base;
- priv->ugctrl2 = pdata->chan0_pci ?
- USBHS_UGCTRL2_USB0_PCI : USBHS_UGCTRL2_USB0_HS;
- priv->ugctrl2 |= pdata->chan2_pci ?
- USBHS_UGCTRL2_USB2_PCI : USBHS_UGCTRL2_USB2_SS;
- priv->phy.dev = dev;
- priv->phy.label = dev_name(dev);
- priv->phy.init = rcar_gen2_usb_phy_init;
- priv->phy.shutdown = rcar_gen2_usb_phy_shutdown;
- priv->phy.set_suspend = rcar_gen2_usb_phy_set_suspend;
-
- retval = usb_add_phy_dev(&priv->phy);
- if (retval < 0) {
- dev_err(dev, "Failed to add USB phy\n");
- return retval;
- }
-
- platform_set_drvdata(pdev, priv);
-
- return retval;
-}
-
-static int rcar_gen2_usb_phy_remove(struct platform_device *pdev)
-{
- struct rcar_gen2_usb_phy_priv *priv = platform_get_drvdata(pdev);
-
- usb_remove_phy(&priv->phy);
-
- return 0;
-}
-
-static struct platform_driver rcar_gen2_usb_phy_driver = {
- .driver = {
- .name = "usb_phy_rcar_gen2",
- },
- .probe = rcar_gen2_usb_phy_probe,
- .remove = rcar_gen2_usb_phy_remove,
-};
-
-module_platform_driver(rcar_gen2_usb_phy_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("Renesas R-Car Gen2 USB phy");
-MODULE_AUTHOR("Valentine Barshak <valentine.barshak@cogentembedded.com>");
diff --git a/kernel/drivers/usb/phy/phy-tahvo.c b/kernel/drivers/usb/phy/phy-tahvo.c
index 2b28443d0..ab5d364f6 100644
--- a/kernel/drivers/usb/phy/phy-tahvo.c
+++ b/kernel/drivers/usb/phy/phy-tahvo.c
@@ -57,13 +57,14 @@ struct tahvo_usb {
struct clk *ick;
int irq;
int tahvo_mode;
- struct extcon_dev extcon;
+ struct extcon_dev *extcon;
};
-static const char *tahvo_cable[] = {
- "USB-HOST",
- "USB",
- NULL,
+static const unsigned int tahvo_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+
+ EXTCON_NONE,
};
static ssize_t vbus_state_show(struct device *device,
@@ -120,7 +121,7 @@ static void check_vbus_state(struct tahvo_usb *tu)
prev_state = tu->vbus_state;
tu->vbus_state = reg & TAHVO_STAT_VBUS;
if (prev_state != tu->vbus_state) {
- extcon_set_cable_state(&tu->extcon, "USB", tu->vbus_state);
+ extcon_set_cable_state_(tu->extcon, EXTCON_USB, tu->vbus_state);
sysfs_notify(&tu->pt_dev->dev.kobj, NULL, "vbus_state");
}
}
@@ -129,7 +130,7 @@ static void tahvo_usb_become_host(struct tahvo_usb *tu)
{
struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent);
- extcon_set_cable_state(&tu->extcon, "USB-HOST", true);
+ extcon_set_cable_state_(tu->extcon, EXTCON_USB_HOST, true);
/* Power up the transceiver in USB host mode */
retu_write(rdev, TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND |
@@ -148,7 +149,7 @@ static void tahvo_usb_become_peripheral(struct tahvo_usb *tu)
{
struct retu_dev *rdev = dev_get_drvdata(tu->pt_dev->dev.parent);
- extcon_set_cable_state(&tu->extcon, "USB-HOST", false);
+ extcon_set_cable_state_(tu->extcon, EXTCON_USB_HOST, false);
/* Power up transceiver and set it in USB peripheral mode */
retu_write(rdev, TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT |
@@ -364,11 +365,13 @@ static int tahvo_usb_probe(struct platform_device *pdev)
*/
tu->vbus_state = retu_read(rdev, TAHVO_REG_IDSR) & TAHVO_STAT_VBUS;
- tu->extcon.name = DRIVER_NAME;
- tu->extcon.supported_cable = tahvo_cable;
- tu->extcon.dev.parent = &pdev->dev;
+ tu->extcon = devm_extcon_dev_allocate(&pdev->dev, tahvo_cable);
+ if (IS_ERR(tu->extcon)) {
+ dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
+ return -ENOMEM;
+ }
- ret = extcon_dev_register(&tu->extcon);
+ ret = devm_extcon_dev_register(&pdev->dev, tu->extcon);
if (ret) {
dev_err(&pdev->dev, "could not register extcon device: %d\n",
ret);
@@ -376,9 +379,9 @@ static int tahvo_usb_probe(struct platform_device *pdev)
}
/* Set the initial cable state. */
- extcon_set_cable_state(&tu->extcon, "USB-HOST",
+ extcon_set_cable_state_(tu->extcon, EXTCON_USB_HOST,
tu->tahvo_mode == TAHVO_MODE_HOST);
- extcon_set_cable_state(&tu->extcon, "USB", tu->vbus_state);
+ extcon_set_cable_state_(tu->extcon, EXTCON_USB, tu->vbus_state);
/* Create OTG interface */
tahvo_usb_power_off(tu);
@@ -395,7 +398,7 @@ static int tahvo_usb_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(&pdev->dev, "cannot register USB transceiver: %d\n",
ret);
- goto err_extcon_unreg;
+ goto err_disable_clk;
}
dev_set_drvdata(&pdev->dev, tu);
@@ -423,8 +426,6 @@ err_free_irq:
free_irq(tu->irq, tu);
err_remove_phy:
usb_remove_phy(&tu->phy);
-err_extcon_unreg:
- extcon_dev_unregister(&tu->extcon);
err_disable_clk:
if (!IS_ERR(tu->ick))
clk_disable(tu->ick);
@@ -439,7 +440,6 @@ static int tahvo_usb_remove(struct platform_device *pdev)
sysfs_remove_group(&pdev->dev.kobj, &tahvo_attr_group);
free_irq(tu->irq, tu);
usb_remove_phy(&tu->phy);
- extcon_dev_unregister(&tu->extcon);
if (!IS_ERR(tu->ick))
clk_disable(tu->ick);
diff --git a/kernel/drivers/usb/phy/phy-tegra-usb.c b/kernel/drivers/usb/phy/phy-tegra-usb.c
index ab025b009..5fe4a5704 100644
--- a/kernel/drivers/usb/phy/phy-tegra-usb.c
+++ b/kernel/drivers/usb/phy/phy-tegra-usb.c
@@ -1029,7 +1029,7 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
}
if (of_find_property(np, "dr_mode", NULL))
- tegra_phy->mode = of_usb_get_dr_mode(np);
+ tegra_phy->mode = usb_get_dr_mode(&pdev->dev);
else
tegra_phy->mode = USB_DR_MODE_HOST;
diff --git a/kernel/drivers/usb/phy/phy.c b/kernel/drivers/usb/phy/phy.c
index d1cd6b50f..98f75d284 100644
--- a/kernel/drivers/usb/phy/phy.c
+++ b/kernel/drivers/usb/phy/phy.c
@@ -22,6 +22,11 @@ static LIST_HEAD(phy_list);
static LIST_HEAD(phy_bind_list);
static DEFINE_SPINLOCK(phy_lock);
+struct phy_devm {
+ struct usb_phy *phy;
+ struct notifier_block *nb;
+};
+
static struct usb_phy *__usb_find_phy(struct list_head *list,
enum usb_phy_type type)
{
@@ -79,6 +84,15 @@ static void devm_usb_phy_release(struct device *dev, void *res)
usb_put_phy(phy);
}
+static void devm_usb_phy_release2(struct device *dev, void *_res)
+{
+ struct phy_devm *res = _res;
+
+ if (res->nb)
+ usb_unregister_notifier(res->phy, res->nb);
+ usb_put_phy(res->phy);
+}
+
static int devm_usb_phy_match(struct device *dev, void *res, void *match_data)
{
struct usb_phy **phy = res;
@@ -153,40 +167,30 @@ err0:
EXPORT_SYMBOL_GPL(usb_get_phy);
/**
- * devm_usb_get_phy_by_phandle - find the USB PHY by phandle
+ * devm_usb_get_phy_by_node - find the USB PHY by device_node
* @dev - device that requests this phy
- * @phandle - name of the property holding the phy phandle value
- * @index - the index of the phy
+ * @node - the device_node for the phy device.
+ * @nb - a notifier_block to register with the phy.
*
- * Returns the phy driver associated with the given phandle value,
+ * Returns the phy driver associated with the given device_node,
* after getting a refcount to it, -ENODEV if there is no such phy or
- * -EPROBE_DEFER if there is a phandle to the phy, but the device is
- * not yet loaded. While at that, it also associates the device with
+ * -EPROBE_DEFER if the device is not yet loaded. While at that, it
+ * also associates the device with
* the phy using devres. On driver detach, release function is invoked
* on the devres data, then, devres data is freed.
*
- * For use by USB host and peripheral drivers.
+ * For use by peripheral drivers for devices related to a phy,
+ * such as a charger.
*/
-struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
- const char *phandle, u8 index)
+struct usb_phy *devm_usb_get_phy_by_node(struct device *dev,
+ struct device_node *node,
+ struct notifier_block *nb)
{
- struct usb_phy *phy = ERR_PTR(-ENOMEM), **ptr;
+ struct usb_phy *phy = ERR_PTR(-ENOMEM);
+ struct phy_devm *ptr;
unsigned long flags;
- struct device_node *node;
- if (!dev->of_node) {
- dev_dbg(dev, "device does not have a device node entry\n");
- return ERR_PTR(-EINVAL);
- }
-
- node = of_parse_phandle(dev->of_node, phandle, index);
- if (!node) {
- dev_dbg(dev, "failed to get %s phandle in %s node\n", phandle,
- dev->of_node->full_name);
- return ERR_PTR(-ENODEV);
- }
-
- ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL);
+ ptr = devres_alloc(devm_usb_phy_release2, sizeof(*ptr), GFP_KERNEL);
if (!ptr) {
dev_dbg(dev, "failed to allocate memory for devres\n");
goto err0;
@@ -205,8 +209,10 @@ struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
devres_free(ptr);
goto err1;
}
-
- *ptr = phy;
+ if (nb)
+ usb_register_notifier(phy, nb);
+ ptr->phy = phy;
+ ptr->nb = nb;
devres_add(dev, ptr);
get_device(phy->dev);
@@ -215,10 +221,47 @@ err1:
spin_unlock_irqrestore(&phy_lock, flags);
err0:
- of_node_put(node);
return phy;
}
+EXPORT_SYMBOL_GPL(devm_usb_get_phy_by_node);
+
+/**
+ * devm_usb_get_phy_by_phandle - find the USB PHY by phandle
+ * @dev - device that requests this phy
+ * @phandle - name of the property holding the phy phandle value
+ * @index - the index of the phy
+ *
+ * Returns the phy driver associated with the given phandle value,
+ * after getting a refcount to it, -ENODEV if there is no such phy or
+ * -EPROBE_DEFER if there is a phandle to the phy, but the device is
+ * not yet loaded. While at that, it also associates the device with
+ * the phy using devres. On driver detach, release function is invoked
+ * on the devres data, then, devres data is freed.
+ *
+ * For use by USB host and peripheral drivers.
+ */
+struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
+ const char *phandle, u8 index)
+{
+ struct device_node *node;
+ struct usb_phy *phy;
+
+ if (!dev->of_node) {
+ dev_dbg(dev, "device does not have a device node entry\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ node = of_parse_phandle(dev->of_node, phandle, index);
+ if (!node) {
+ dev_dbg(dev, "failed to get %s phandle in %s node\n", phandle,
+ dev->of_node->full_name);
+ return ERR_PTR(-ENODEV);
+ }
+ phy = devm_usb_get_phy_by_node(dev, node, NULL);
+ of_node_put(node);
+ return phy;
+}
EXPORT_SYMBOL_GPL(devm_usb_get_phy_by_phandle);
/**
diff --git a/kernel/drivers/usb/renesas_usbhs/common.c b/kernel/drivers/usb/renesas_usbhs/common.c
index 0f7e850fd..d82fa36c3 100644
--- a/kernel/drivers/usb/renesas_usbhs/common.c
+++ b/kernel/drivers/usb/renesas_usbhs/common.c
@@ -388,7 +388,7 @@ static void usbhsc_hotplug(struct usbhs_priv *priv)
if (enable && !mod) {
if (priv->edev) {
- cable = extcon_get_cable_state(priv->edev, "USB-HOST");
+ cable = extcon_get_cable_state_(priv->edev, EXTCON_USB_HOST);
if ((cable > 0 && id != USBHS_HOST) ||
(!cable && id != USBHS_GADGET)) {
dev_info(&pdev->dev,
@@ -466,11 +466,20 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
static const struct of_device_id usbhs_of_match[] = {
{
.compatible = "renesas,usbhs-r8a7790",
- .data = (void *)USBHS_TYPE_R8A7790,
+ .data = (void *)USBHS_TYPE_RCAR_GEN2,
},
{
.compatible = "renesas,usbhs-r8a7791",
- .data = (void *)USBHS_TYPE_R8A7791,
+ .data = (void *)USBHS_TYPE_RCAR_GEN2,
+ },
+ {
+ .compatible = "renesas,usbhs-r8a7794",
+ .data = (void *)USBHS_TYPE_RCAR_GEN2,
+ },
+ {
+ /* Gen3 is compatible with Gen2 */
+ .compatible = "renesas,usbhs-r8a7795",
+ .data = (void *)USBHS_TYPE_RCAR_GEN2,
},
{ },
};
@@ -489,7 +498,7 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
return NULL;
dparam = &info->driver_param;
- dparam->type = of_id ? (u32)of_id->data : 0;
+ dparam->type = of_id ? (uintptr_t)of_id->data : 0;
if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp))
dparam->buswait_bwait = tmp;
gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0,
@@ -497,14 +506,8 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
if (gpio > 0)
dparam->enable_gpio = gpio;
- switch (dparam->type) {
- case USBHS_TYPE_R8A7790:
- case USBHS_TYPE_R8A7791:
+ if (dparam->type == USBHS_TYPE_RCAR_GEN2)
dparam->has_usb_dmac = 1;
- break;
- default:
- break;
- }
return info;
}
@@ -559,8 +562,7 @@ static int usbhs_probe(struct platform_device *pdev)
sizeof(struct renesas_usbhs_driver_param));
switch (priv->dparam.type) {
- case USBHS_TYPE_R8A7790:
- case USBHS_TYPE_R8A7791:
+ case USBHS_TYPE_RCAR_GEN2:
priv->pfunc = usbhs_rcar2_ops;
if (!priv->dparam.pipe_type) {
priv->dparam.pipe_type = usbhsc_new_pipe_type;
diff --git a/kernel/drivers/usb/renesas_usbhs/fifo.h b/kernel/drivers/usb/renesas_usbhs/fifo.h
index 04d3f8aba..c7d9b86d5 100644
--- a/kernel/drivers/usb/renesas_usbhs/fifo.h
+++ b/kernel/drivers/usb/renesas_usbhs/fifo.h
@@ -44,10 +44,11 @@ struct usbhs_fifo_info {
struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
};
#define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n]))
-#define usbhs_for_each_dfifo(priv, dfifo, i) \
- for ((i) = 0, dfifo = usbhsf_get_dnfifo(priv, (i)); \
- ((i) < USBHS_MAX_NUM_DFIFO); \
- (i)++, dfifo = usbhsf_get_dnfifo(priv, (i)))
+#define usbhs_for_each_dfifo(priv, dfifo, i) \
+ for ((i) = 0; \
+ ((i) < USBHS_MAX_NUM_DFIFO) && \
+ ((dfifo) = usbhsf_get_dnfifo(priv, (i))); \
+ (i)++)
struct usbhs_pkt_handle;
struct usbhs_pkt {
diff --git a/kernel/drivers/usb/renesas_usbhs/mod.c b/kernel/drivers/usb/renesas_usbhs/mod.c
index 9a705b15b..d4be5d594 100644
--- a/kernel/drivers/usb/renesas_usbhs/mod.c
+++ b/kernel/drivers/usb/renesas_usbhs/mod.c
@@ -218,10 +218,14 @@ static int usbhs_status_get_each_irq(struct usbhs_priv *priv,
/******************** spin lock ********************/
usbhs_lock(priv, flags);
state->intsts0 = usbhs_read(priv, INTSTS0);
- state->intsts1 = usbhs_read(priv, INTSTS1);
-
intenb0 = usbhs_read(priv, INTENB0);
- intenb1 = usbhs_read(priv, INTENB1);
+
+ if (usbhs_mod_is_host(priv)) {
+ state->intsts1 = usbhs_read(priv, INTSTS1);
+ intenb1 = usbhs_read(priv, INTENB1);
+ } else {
+ state->intsts1 = intenb1 = 0;
+ }
/* mask */
if (mod) {
@@ -275,7 +279,8 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
* - Function :: VALID bit should 0
*/
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
- usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
+ if (usbhs_mod_is_host(priv))
+ usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
@@ -303,19 +308,20 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
if (irq_state.intsts0 & BRDY)
usbhs_mod_call(priv, irq_ready, priv, &irq_state);
- /* INTSTS1 */
- if (irq_state.intsts1 & ATTCH)
- usbhs_mod_call(priv, irq_attch, priv, &irq_state);
-
- if (irq_state.intsts1 & DTCH)
- usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
+ if (usbhs_mod_is_host(priv)) {
+ /* INTSTS1 */
+ if (irq_state.intsts1 & ATTCH)
+ usbhs_mod_call(priv, irq_attch, priv, &irq_state);
- if (irq_state.intsts1 & SIGN)
- usbhs_mod_call(priv, irq_sign, priv, &irq_state);
+ if (irq_state.intsts1 & DTCH)
+ usbhs_mod_call(priv, irq_dtch, priv, &irq_state);
- if (irq_state.intsts1 & SACK)
- usbhs_mod_call(priv, irq_sack, priv, &irq_state);
+ if (irq_state.intsts1 & SIGN)
+ usbhs_mod_call(priv, irq_sign, priv, &irq_state);
+ if (irq_state.intsts1 & SACK)
+ usbhs_mod_call(priv, irq_sack, priv, &irq_state);
+ }
return IRQ_HANDLED;
}
@@ -334,7 +340,8 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
* - update INTSTS0
*/
usbhs_write(priv, INTENB0, 0);
- usbhs_write(priv, INTENB1, 0);
+ if (usbhs_mod_is_host(priv))
+ usbhs_write(priv, INTENB1, 0);
usbhs_write(priv, BEMPENB, 0);
usbhs_write(priv, BRDYENB, 0);
@@ -368,25 +375,27 @@ void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod)
intenb0 |= BRDYE;
}
- /*
- * INTSTS1
- */
- if (mod->irq_attch)
- intenb1 |= ATTCHE;
+ if (usbhs_mod_is_host(priv)) {
+ /*
+ * INTSTS1
+ */
+ if (mod->irq_attch)
+ intenb1 |= ATTCHE;
- if (mod->irq_dtch)
- intenb1 |= DTCHE;
+ if (mod->irq_dtch)
+ intenb1 |= DTCHE;
- if (mod->irq_sign)
- intenb1 |= SIGNE;
+ if (mod->irq_sign)
+ intenb1 |= SIGNE;
- if (mod->irq_sack)
- intenb1 |= SACKE;
+ if (mod->irq_sack)
+ intenb1 |= SACKE;
+ }
}
if (intenb0)
usbhs_write(priv, INTENB0, intenb0);
- if (intenb1)
+ if (usbhs_mod_is_host(priv) && intenb1)
usbhs_write(priv, INTENB1, intenb1);
}
diff --git a/kernel/drivers/usb/renesas_usbhs/mod_gadget.c b/kernel/drivers/usb/renesas_usbhs/mod_gadget.c
index dc2aa3261..8f7a78e70 100644
--- a/kernel/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/kernel/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
#include "common.h"
/*
@@ -50,6 +51,8 @@ struct usbhsg_gpriv {
int uep_size;
struct usb_gadget_driver *driver;
+ struct usb_phy *transceiver;
+ bool vbus_active;
u32 status;
#define USBHSG_STATUS_STARTED (1 << 0)
@@ -128,7 +131,8 @@ static void __usbhsg_queue_pop(struct usbhsg_uep *uep,
struct device *dev = usbhsg_gpriv_to_dev(gpriv);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
- dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
+ if (pipe)
+ dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
ureq->req.status = status;
spin_unlock(usbhs_priv_to_lock(priv));
@@ -682,7 +686,13 @@ static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
- usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
+ if (pipe)
+ usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
+
+ /*
+ * To dequeue a request, this driver should call the usbhsg_queue_pop()
+ * even if the pipe is NULL.
+ */
usbhsg_queue_pop(uep, ureq, -ECONNRESET);
return 0;
@@ -873,6 +883,27 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
}
/*
+ * VBUS provided by the PHY
+ */
+static int usbhsm_phy_get_vbus(struct platform_device *pdev)
+{
+ struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
+ struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+ return gpriv->vbus_active;
+}
+
+static void usbhs_mod_phy_mode(struct usbhs_priv *priv)
+{
+ struct usbhs_mod_info *info = &priv->mod_info;
+
+ info->irq_vbus = NULL;
+ priv->pfunc.get_vbus = usbhsm_phy_get_vbus;
+
+ usbhs_irq_callback_update(priv, NULL);
+}
+
+/*
*
* linux usb function
*
@@ -882,12 +913,28 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget,
{
struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+ struct device *dev = usbhs_priv_to_dev(priv);
+ int ret;
if (!driver ||
!driver->setup ||
driver->max_speed < USB_SPEED_FULL)
return -EINVAL;
+ /* connect to bus through transceiver */
+ if (!IS_ERR_OR_NULL(gpriv->transceiver)) {
+ ret = otg_set_peripheral(gpriv->transceiver->otg,
+ &gpriv->gadget);
+ if (ret) {
+ dev_err(dev, "%s: can't bind to transceiver\n",
+ gpriv->gadget.name);
+ return ret;
+ }
+
+ /* get vbus using phy versions */
+ usbhs_mod_phy_mode(priv);
+ }
+
/* first hook up the driver ... */
gpriv->driver = driver;
@@ -900,6 +947,10 @@ static int usbhsg_gadget_stop(struct usb_gadget *gadget)
struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
+
+ if (!IS_ERR_OR_NULL(gpriv->transceiver))
+ otg_set_peripheral(gpriv->transceiver->otg, NULL);
+
gpriv->driver = NULL;
return 0;
@@ -947,12 +998,26 @@ static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self)
return 0;
}
+static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active)
+{
+ struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+ struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+ struct platform_device *pdev = usbhs_priv_to_pdev(priv);
+
+ gpriv->vbus_active = !!is_active;
+
+ renesas_usbhs_call_notify_hotplug(pdev);
+
+ return 0;
+}
+
static const struct usb_gadget_ops usbhsg_gadget_ops = {
.get_frame = usbhsg_get_frame,
.set_selfpowered = usbhsg_set_selfpowered,
.udc_start = usbhsg_gadget_start,
.udc_stop = usbhsg_gadget_stop,
.pullup = usbhsg_pullup,
+ .vbus_session = usbhsg_vbus_session,
};
static int usbhsg_start(struct usbhs_priv *priv)
@@ -994,6 +1059,10 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
goto usbhs_mod_gadget_probe_err_gpriv;
}
+ gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
+ dev_info(dev, "%stransceiver found\n",
+ gpriv->transceiver ? "" : "no ");
+
/*
* CAUTION
*
@@ -1041,12 +1110,18 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
if (usbhsg_is_dcp(uep)) {
gpriv->gadget.ep0 = &uep->ep;
usb_ep_set_maxpacket_limit(&uep->ep, 64);
+ uep->ep.caps.type_control = true;
}
/* init normal pipe */
else {
usb_ep_set_maxpacket_limit(&uep->ep, 512);
+ uep->ep.caps.type_iso = true;
+ uep->ep.caps.type_bulk = true;
+ uep->ep.caps.type_int = true;
list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
}
+ uep->ep.caps.dir_in = true;
+ uep->ep.caps.dir_out = true;
}
ret = usb_add_gadget_udc(dev, &gpriv->gadget);
diff --git a/kernel/drivers/usb/renesas_usbhs/rcar2.c b/kernel/drivers/usb/renesas_usbhs/rcar2.c
index 8fc15c0ba..277160bc6 100644
--- a/kernel/drivers/usb/renesas_usbhs/rcar2.c
+++ b/kernel/drivers/usb/renesas_usbhs/rcar2.c
@@ -13,7 +13,6 @@
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/phy/phy.h>
-#include <linux/platform_data/gpio-rcar.h>
#include <linux/usb/phy.h>
#include "common.h"
#include "rcar2.h"
diff --git a/kernel/drivers/usb/serial/Kconfig b/kernel/drivers/usb/serial/Kconfig
index b7cf1982d..56ecb8b51 100644
--- a/kernel/drivers/usb/serial/Kconfig
+++ b/kernel/drivers/usb/serial/Kconfig
@@ -171,7 +171,7 @@ config USB_SERIAL_FTDI_SIO
---help---
Say Y here if you want to use a FTDI SIO single port USB to serial
converter device. The implementation I have is called the USC-1000.
- This driver has also be tested with the 245 and 232 devices.
+ This driver has also been tested with the 245 and 232 devices.
See <http://ftdi-usb-sio.sourceforge.net/> for more
information on this driver and the device.
diff --git a/kernel/drivers/usb/serial/cp210x.c b/kernel/drivers/usb/serial/cp210x.c
index eac7ccaa3..7a76fe4c2 100644
--- a/kernel/drivers/usb/serial/cp210x.c
+++ b/kernel/drivers/usb/serial/cp210x.c
@@ -98,6 +98,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
+ { USB_DEVICE(0x10C4, 0x81D7) }, /* IAI Corp. RCB-CV-USB USB to RS485 Adaptor */
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
{ USB_DEVICE(0x10C4, 0x81E8) }, /* Zephyr Bioharness */
@@ -132,7 +133,6 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
- { USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
@@ -161,6 +161,10 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+ { USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+ { USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
+ { USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
+ { USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
{ USB_DEVICE(0x1BA4, 0x0002) }, /* Silicon Labs 358x factory default */
diff --git a/kernel/drivers/usb/serial/ftdi_sio.c b/kernel/drivers/usb/serial/ftdi_sio.c
index a5a0376bb..8c660ae40 100644
--- a/kernel/drivers/usb/serial/ftdi_sio.c
+++ b/kernel/drivers/usb/serial/ftdi_sio.c
@@ -824,6 +824,7 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
+ { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_SCU18) },
{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
/* Papouch devices based on FTDI chip */
diff --git a/kernel/drivers/usb/serial/ftdi_sio_ids.h b/kernel/drivers/usb/serial/ftdi_sio_ids.h
index 2943b97b2..a84df2513 100644
--- a/kernel/drivers/usb/serial/ftdi_sio_ids.h
+++ b/kernel/drivers/usb/serial/ftdi_sio_ids.h
@@ -615,6 +615,7 @@
*/
#define RATOC_VENDOR_ID 0x0584
#define RATOC_PRODUCT_ID_USB60F 0xb020
+#define RATOC_PRODUCT_ID_SCU18 0xb03a
/*
* Infineon Technologies
@@ -1373,7 +1374,7 @@
#define FTDI_CTI_NANO_PID 0xF60B
/*
- * ZeitControl cardsystems GmbH rfid-readers http://zeitconrol.de
+ * ZeitControl cardsystems GmbH rfid-readers http://zeitcontrol.de
*/
/* TagTracer MIFARE*/
#define FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID 0xF7C0
diff --git a/kernel/drivers/usb/serial/io_ti.c b/kernel/drivers/usb/serial/io_ti.c
index ddbb8fe10..fce82fd79 100644
--- a/kernel/drivers/usb/serial/io_ti.c
+++ b/kernel/drivers/usb/serial/io_ti.c
@@ -54,8 +54,10 @@
#define TI_MODE_CONFIGURING 0 /* Device has not entered start device */
#define TI_MODE_BOOT 1 /* Staying in boot mode */
#define TI_MODE_DOWNLOAD 2 /* Made it to download mode */
-#define TI_MODE_TRANSITIONING 3 /* Currently in boot mode but
- transitioning to download mode */
+#define TI_MODE_TRANSITIONING 3 /*
+ * Currently in boot mode but
+ * transitioning to download mode
+ */
/* read urb state */
#define EDGE_READ_URB_RUNNING 0
@@ -71,6 +73,25 @@ struct product_info {
__u8 hardware_type; /* Type of hardware */
} __attribute__((packed));
+/*
+ * Edgeport firmware header
+ *
+ * "build_number" has been set to 0 in all three of the images I have
+ * seen, and Digi Tech Support suggests that it is safe to ignore it.
+ *
+ * "length" is the number of bytes of actual data following the header.
+ *
+ * "checksum" is the low order byte resulting from adding the values of
+ * all the data bytes.
+ */
+struct edgeport_fw_hdr {
+ u8 major_version;
+ u8 minor_version;
+ __le16 build_number;
+ __le16 length;
+ u8 checksum;
+} __packed;
+
struct edgeport_port {
__u16 uart_base;
__u16 dma_address;
@@ -78,9 +99,11 @@ struct edgeport_port {
__u8 shadow_mcr;
__u8 shadow_lsr;
__u8 lsr_mask;
- __u32 ump_read_timeout; /* Number of milliseconds the UMP will
- wait without data before completing
- a read short */
+ __u32 ump_read_timeout; /*
+ * Number of milliseconds the UMP will
+ * wait without data before completing
+ * a read short
+ */
int baud_rate;
int close_pending;
int lsr_event;
@@ -96,11 +119,16 @@ struct edgeport_port {
struct edgeport_serial {
struct product_info product_info;
u8 TI_I2C_Type; /* Type of I2C in UMP */
- u8 TiReadI2C; /* Set to TRUE if we have read the
- I2c in Boot Mode */
+ u8 TiReadI2C; /*
+ * Set to TRUE if we have read the
+ * I2c in Boot Mode
+ */
struct mutex es_lock;
int num_ports_open;
struct usb_serial *serial;
+ struct delayed_work heartbeat_work;
+ int fw_version;
+ bool use_heartbeat;
};
@@ -187,10 +215,6 @@ static const struct usb_device_id id_table_combined[] = {
MODULE_DEVICE_TABLE(usb, id_table_combined);
-static unsigned char OperationalMajorVersion;
-static unsigned char OperationalMinorVersion;
-static unsigned short OperationalBuildNumber;
-
static int closing_wait = EDGE_CLOSING_WAIT;
static bool ignore_cpu_rev;
static int default_uart_mode; /* RS232 */
@@ -205,10 +229,35 @@ static void edge_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios);
static void edge_send(struct usb_serial_port *port, struct tty_struct *tty);
+static int do_download_mode(struct edgeport_serial *serial,
+ const struct firmware *fw);
+static int do_boot_mode(struct edgeport_serial *serial,
+ const struct firmware *fw);
+
/* sysfs attributes */
static int edge_create_sysfs_attrs(struct usb_serial_port *port);
static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
+/*
+ * Some release of Edgeport firmware "down3.bin" after version 4.80
+ * introduced code to automatically disconnect idle devices on some
+ * Edgeport models after periods of inactivity, typically ~60 seconds.
+ * This occurs without regard to whether ports on the device are open
+ * or not. Digi International Tech Support suggested:
+ *
+ * 1. Adding driver "heartbeat" code to reset the firmware timer by
+ * requesting a descriptor record every 15 seconds, which should be
+ * effective with newer firmware versions that require it, and benign
+ * with older versions that do not. In practice 40 seconds seems often
+ * enough.
+ * 2. The heartbeat code is currently required only on Edgeport/416 models.
+ */
+#define FW_HEARTBEAT_VERSION_CUTOFF ((4 << 8) + 80)
+#define FW_HEARTBEAT_SECS 40
+
+/* Timeouts in msecs: firmware downloads take longer */
+#define TI_VSEND_TIMEOUT_DEFAULT 1000
+#define TI_VSEND_TIMEOUT_FW_DOWNLOAD 10000
static int ti_vread_sync(struct usb_device *dev, __u8 request,
__u16 value, __u16 index, u8 *data, int size)
@@ -228,14 +277,14 @@ static int ti_vread_sync(struct usb_device *dev, __u8 request,
return 0;
}
-static int ti_vsend_sync(struct usb_device *dev, __u8 request,
- __u16 value, __u16 index, u8 *data, int size)
+static int ti_vsend_sync(struct usb_device *dev, u8 request, u16 value,
+ u16 index, u8 *data, int size, int timeout)
{
int status;
status = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
- value, index, data, size, 1000);
+ value, index, data, size, timeout);
if (status < 0)
return status;
if (status != size) {
@@ -250,7 +299,8 @@ static int send_cmd(struct usb_device *dev, __u8 command,
__u8 moduleid, __u16 value, u8 *data,
int size)
{
- return ti_vsend_sync(dev, command, value, moduleid, data, size);
+ return ti_vsend_sync(dev, command, value, moduleid, data, size,
+ TI_VSEND_TIMEOUT_DEFAULT);
}
/* clear tx/rx buffers and fifo in TI UMP */
@@ -285,7 +335,8 @@ static int read_download_mem(struct usb_device *dev, int start_address,
dev_dbg(&dev->dev, "%s - @ %x for %d\n", __func__, start_address, length);
- /* Read in blocks of 64 bytes
+ /*
+ * Read in blocks of 64 bytes
* (TI firmware can't handle more than 64 byte reads)
*/
while (length) {
@@ -378,9 +429,9 @@ static int write_boot_mem(struct edgeport_serial *serial,
}
for (i = 0; i < length; ++i) {
- status = ti_vsend_sync(serial->serial->dev,
- UMPC_MEMORY_WRITE, buffer[i],
- (__u16)(i + start_address), NULL, 0);
+ status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
+ buffer[i], (u16)(i + start_address), NULL,
+ 0, TI_VSEND_TIMEOUT_DEFAULT);
if (status)
return status;
}
@@ -391,7 +442,6 @@ static int write_boot_mem(struct edgeport_serial *serial,
return status;
}
-
/* Write edgeport I2C memory to TI chip */
static int write_i2c_mem(struct edgeport_serial *serial,
int start_address, int length, __u8 address_type, __u8 *buffer)
@@ -421,10 +471,9 @@ static int write_i2c_mem(struct edgeport_serial *serial,
* regardless of host byte order.
*/
be_start_address = swab16((u16)start_address);
- status = ti_vsend_sync(serial->serial->dev,
- UMPC_MEMORY_WRITE, (__u16)address_type,
- be_start_address,
- buffer, write_length);
+ status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
+ (u16)address_type, be_start_address,
+ buffer, write_length, TI_VSEND_TIMEOUT_DEFAULT);
if (status) {
dev_dbg(dev, "%s - ERROR %d\n", __func__, status);
return status;
@@ -434,8 +483,10 @@ static int write_i2c_mem(struct edgeport_serial *serial,
start_address += write_length;
buffer += write_length;
- /* We should be aligned now -- can write
- max page size bytes at a time */
+ /*
+ * We should be aligned now -- can write max page size bytes at a
+ * time.
+ */
while (length) {
if (length > EPROM_PAGE_SIZE)
write_length = EPROM_PAGE_SIZE;
@@ -454,9 +505,8 @@ static int write_i2c_mem(struct edgeport_serial *serial,
*/
be_start_address = swab16((u16)start_address);
status = ti_vsend_sync(serial->serial->dev, UMPC_MEMORY_WRITE,
- (__u16)address_type,
- be_start_address,
- buffer, write_length);
+ (u16)address_type, be_start_address, buffer,
+ write_length, TI_VSEND_TIMEOUT_DEFAULT);
if (status) {
dev_err(dev, "%s - ERROR %d\n", __func__, status);
return status;
@@ -469,7 +519,8 @@ static int write_i2c_mem(struct edgeport_serial *serial,
return status;
}
-/* Examine the UMP DMA registers and LSR
+/*
+ * Examine the UMP DMA registers and LSR
*
* Check the MSBit of the X and Y DMA byte count registers.
* A zero in this bit indicates that the TX DMA buffers are empty
@@ -486,9 +537,11 @@ static int tx_active(struct edgeport_port *port)
if (!oedb)
return -ENOMEM;
- lsr = kmalloc(1, GFP_KERNEL); /* Sigh, that's right, just one byte,
- as not all platforms can do DMA
- from stack */
+ /*
+ * Sigh, that's right, just one byte, as not all platforms can
+ * do DMA from stack
+ */
+ lsr = kmalloc(1, GFP_KERNEL);
if (!lsr) {
kfree(oedb);
return -ENOMEM;
@@ -578,8 +631,6 @@ static int write_rom(struct edgeport_serial *serial, int start_address,
return -EINVAL;
}
-
-
/* Read a descriptor header from I2C based on type */
static int get_descriptor_addr(struct edgeport_serial *serial,
int desc_type, struct ti_i2c_desc *rom_desc)
@@ -748,20 +799,19 @@ exit:
}
/* Build firmware header used for firmware update */
-static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
+static int build_i2c_fw_hdr(u8 *header, const struct firmware *fw)
{
__u8 *buffer;
int buffer_size;
int i;
- int err;
__u8 cs = 0;
struct ti_i2c_desc *i2c_header;
struct ti_i2c_image_header *img_header;
struct ti_i2c_firmware_rec *firmware_rec;
- const struct firmware *fw;
- const char *fw_name = "edgeport/down3.bin";
+ struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
- /* In order to update the I2C firmware we must change the type 2 record
+ /*
+ * In order to update the I2C firmware we must change the type 2 record
* to type 0xF2. This will force the UMP to come up in Boot Mode.
* Then while in boot mode, the driver will download the latest
* firmware (padded to 15.5k) into the UMP ram. And finally when the
@@ -770,8 +820,10 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
* update the record type from 0xf2 to 0x02.
*/
- /* Allocate a 15.5k buffer + 2 bytes for version number
- * (Firmware Record) */
+ /*
+ * Allocate a 15.5k buffer + 2 bytes for version number (Firmware
+ * Record)
+ */
buffer_size = (((1024 * 16) - 512 ) +
sizeof(struct ti_i2c_firmware_rec));
@@ -779,27 +831,14 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
if (!buffer)
return -ENOMEM;
- // Set entire image of 0xffs
+ /* Set entire image of 0xffs */
memset(buffer, 0xff, buffer_size);
- err = request_firmware(&fw, fw_name, dev);
- if (err) {
- dev_err(dev, "Failed to load image \"%s\" err %d\n",
- fw_name, err);
- kfree(buffer);
- return err;
- }
-
- /* Save Download Version Number */
- OperationalMajorVersion = fw->data[0];
- OperationalMinorVersion = fw->data[1];
- OperationalBuildNumber = fw->data[2] | (fw->data[3] << 8);
-
/* Copy version number into firmware record */
firmware_rec = (struct ti_i2c_firmware_rec *)buffer;
- firmware_rec->Ver_Major = OperationalMajorVersion;
- firmware_rec->Ver_Minor = OperationalMinorVersion;
+ firmware_rec->Ver_Major = fw_hdr->major_version;
+ firmware_rec->Ver_Minor = fw_hdr->minor_version;
/* Pointer to fw_down memory image */
img_header = (struct ti_i2c_image_header *)&fw->data[4];
@@ -808,8 +847,6 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
&fw->data[4 + sizeof(struct ti_i2c_image_header)],
le16_to_cpu(img_header->Length));
- release_firmware(fw);
-
for (i=0; i < buffer_size; i++) {
cs = (__u8)(cs + buffer[i]);
}
@@ -823,8 +860,8 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev)
i2c_header->Type = I2C_DESC_TYPE_FIRMWARE_BLANK;
i2c_header->Size = cpu_to_le16(buffer_size);
i2c_header->CheckSum = cs;
- firmware_rec->Ver_Major = OperationalMajorVersion;
- firmware_rec->Ver_Minor = OperationalMinorVersion;
+ firmware_rec->Ver_Major = fw_hdr->major_version;
+ firmware_rec->Ver_Minor = fw_hdr->minor_version;
return 0;
}
@@ -925,7 +962,42 @@ static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc)
return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev);
}
-/**
+static int check_fw_sanity(struct edgeport_serial *serial,
+ const struct firmware *fw)
+{
+ u16 length_total;
+ u8 checksum = 0;
+ int pos;
+ struct device *dev = &serial->serial->interface->dev;
+ struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
+
+ if (fw->size < sizeof(struct edgeport_fw_hdr)) {
+ dev_err(dev, "incomplete fw header\n");
+ return -EINVAL;
+ }
+
+ length_total = le16_to_cpu(fw_hdr->length) +
+ sizeof(struct edgeport_fw_hdr);
+
+ if (fw->size != length_total) {
+ dev_err(dev, "bad fw size (expected: %u, got: %zu)\n",
+ length_total, fw->size);
+ return -EINVAL;
+ }
+
+ for (pos = sizeof(struct edgeport_fw_hdr); pos < fw->size; ++pos)
+ checksum += fw->data[pos];
+
+ if (checksum != fw_hdr->checksum) {
+ dev_err(dev, "bad fw checksum (expected: 0x%x, got: 0x%x)\n",
+ fw_hdr->checksum, checksum);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
* DownloadTIFirmware - Download run-time operating firmware to the TI5052
*
* This routine downloads the main operating code into the TI5052, using the
@@ -933,15 +1005,33 @@ static int ti_cpu_rev(struct edge_ti_manuf_descriptor *desc)
*/
static int download_fw(struct edgeport_serial *serial)
{
- struct device *dev = &serial->serial->dev->dev;
+ struct device *dev = &serial->serial->interface->dev;
int status = 0;
- int start_address;
- struct edge_ti_manuf_descriptor *ti_manuf_desc;
struct usb_interface_descriptor *interface;
- int download_cur_ver;
- int download_new_ver;
+ const struct firmware *fw;
+ const char *fw_name = "edgeport/down3.bin";
+ struct edgeport_fw_hdr *fw_hdr;
- /* This routine is entered by both the BOOT mode and the Download mode
+ status = request_firmware(&fw, fw_name, dev);
+ if (status) {
+ dev_err(dev, "Failed to load image \"%s\" err %d\n",
+ fw_name, status);
+ return status;
+ }
+
+ if (check_fw_sanity(serial, fw)) {
+ status = -EINVAL;
+ goto out;
+ }
+
+ fw_hdr = (struct edgeport_fw_hdr *)fw->data;
+
+ /* If on-board version is newer, "fw_version" will be updated later. */
+ serial->fw_version = (fw_hdr->major_version << 8) +
+ fw_hdr->minor_version;
+
+ /*
+ * This routine is entered by both the BOOT mode and the Download mode
* We can determine which code is running by the reading the config
* descriptor and if we have only one bulk pipe it is in boot mode
*/
@@ -952,12 +1042,13 @@ static int download_fw(struct edgeport_serial *serial)
status = choose_config(serial->serial->dev);
if (status)
- return status;
+ goto out;
interface = &serial->serial->interface->cur_altsetting->desc;
if (!interface) {
dev_err(dev, "%s - no interface set, error!\n", __func__);
- return -ENODEV;
+ status = -ENODEV;
+ goto out;
}
/*
@@ -965,187 +1056,219 @@ static int download_fw(struct edgeport_serial *serial)
* if we have more than one endpoint we are definitely in download
* mode
*/
- if (interface->bNumEndpoints > 1)
+ if (interface->bNumEndpoints > 1) {
serial->product_info.TiMode = TI_MODE_DOWNLOAD;
- else
+ status = do_download_mode(serial, fw);
+ } else {
/* Otherwise we will remain in configuring mode */
serial->product_info.TiMode = TI_MODE_CONFIGURING;
+ status = do_boot_mode(serial, fw);
+ }
- /********************************************************************/
- /* Download Mode */
- /********************************************************************/
- if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
- struct ti_i2c_desc *rom_desc;
+out:
+ release_firmware(fw);
+ return status;
+}
- dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
+static int do_download_mode(struct edgeport_serial *serial,
+ const struct firmware *fw)
+{
+ struct device *dev = &serial->serial->interface->dev;
+ int status = 0;
+ int start_address;
+ struct edge_ti_manuf_descriptor *ti_manuf_desc;
+ int download_cur_ver;
+ int download_new_ver;
+ struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
+ struct ti_i2c_desc *rom_desc;
- status = check_i2c_image(serial);
- if (status) {
- dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
- return status;
- }
+ dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
- /* Validate Hardware version number
- * Read Manufacturing Descriptor from TI Based Edgeport
- */
- ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
- if (!ti_manuf_desc)
+ status = check_i2c_image(serial);
+ if (status) {
+ dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
+ return status;
+ }
+
+ /*
+ * Validate Hardware version number
+ * Read Manufacturing Descriptor from TI Based Edgeport
+ */
+ ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
+ if (!ti_manuf_desc)
+ return -ENOMEM;
+
+ status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
+ if (status) {
+ kfree(ti_manuf_desc);
+ return status;
+ }
+
+ /* Check version number of ION descriptor */
+ if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
+ dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
+ __func__, ti_cpu_rev(ti_manuf_desc));
+ kfree(ti_manuf_desc);
+ return -EINVAL;
+ }
+
+ rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
+ if (!rom_desc) {
+ kfree(ti_manuf_desc);
+ return -ENOMEM;
+ }
+
+ /* Search for type 2 record (firmware record) */
+ start_address = get_descriptor_addr(serial,
+ I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
+ if (start_address != 0) {
+ struct ti_i2c_firmware_rec *firmware_version;
+ u8 *record;
+
+ dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n",
+ __func__);
+
+ firmware_version = kmalloc(sizeof(*firmware_version),
+ GFP_KERNEL);
+ if (!firmware_version) {
+ kfree(rom_desc);
+ kfree(ti_manuf_desc);
return -ENOMEM;
+ }
- status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
+ /*
+ * Validate version number
+ * Read the descriptor data
+ */
+ status = read_rom(serial, start_address +
+ sizeof(struct ti_i2c_desc),
+ sizeof(struct ti_i2c_firmware_rec),
+ (__u8 *)firmware_version);
if (status) {
+ kfree(firmware_version);
+ kfree(rom_desc);
kfree(ti_manuf_desc);
return status;
}
- /* Check version number of ION descriptor */
- if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
- dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
- __func__, ti_cpu_rev(ti_manuf_desc));
- kfree(ti_manuf_desc);
- return -EINVAL;
- }
-
- rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
- if (!rom_desc) {
- kfree(ti_manuf_desc);
- return -ENOMEM;
- }
+ /*
+ * Check version number of download with current
+ * version in I2c
+ */
+ download_cur_ver = (firmware_version->Ver_Major << 8) +
+ (firmware_version->Ver_Minor);
+ download_new_ver = (fw_hdr->major_version << 8) +
+ (fw_hdr->minor_version);
- /* Search for type 2 record (firmware record) */
- start_address = get_descriptor_addr(serial,
- I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
- if (start_address != 0) {
- struct ti_i2c_firmware_rec *firmware_version;
- u8 *record;
+ dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
+ __func__, firmware_version->Ver_Major,
+ firmware_version->Ver_Minor,
+ fw_hdr->major_version, fw_hdr->minor_version);
- dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
+ /*
+ * Check if we have an old version in the I2C and
+ * update if necessary
+ */
+ if (download_cur_ver < download_new_ver) {
+ dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
+ __func__,
+ firmware_version->Ver_Major,
+ firmware_version->Ver_Minor,
+ fw_hdr->major_version,
+ fw_hdr->minor_version);
- firmware_version = kmalloc(sizeof(*firmware_version),
- GFP_KERNEL);
- if (!firmware_version) {
+ record = kmalloc(1, GFP_KERNEL);
+ if (!record) {
+ kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
return -ENOMEM;
}
+ /*
+ * In order to update the I2C firmware we must
+ * change the type 2 record to type 0xF2. This
+ * will force the UMP to come up in Boot Mode.
+ * Then while in boot mode, the driver will
+ * download the latest firmware (padded to
+ * 15.5k) into the UMP ram. Finally when the
+ * device comes back up in download mode the
+ * driver will cause the new firmware to be
+ * copied from the UMP Ram to I2C and the
+ * firmware will update the record type from
+ * 0xf2 to 0x02.
+ */
+ *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
- /* Validate version number
- * Read the descriptor data
+ /*
+ * Change the I2C Firmware record type to
+ * 0xf2 to trigger an update
*/
- status = read_rom(serial, start_address +
- sizeof(struct ti_i2c_desc),
- sizeof(struct ti_i2c_firmware_rec),
- (__u8 *)firmware_version);
+ status = write_rom(serial, start_address,
+ sizeof(*record), record);
if (status) {
+ kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
return status;
}
- /* Check version number of download with current
- version in I2c */
- download_cur_ver = (firmware_version->Ver_Major << 8) +
- (firmware_version->Ver_Minor);
- download_new_ver = (OperationalMajorVersion << 8) +
- (OperationalMinorVersion);
+ /*
+ * verify the write -- must do this in order
+ * for write to complete before we do the
+ * hardware reset
+ */
+ status = read_rom(serial,
+ start_address,
+ sizeof(*record),
+ record);
+ if (status) {
+ kfree(record);
+ kfree(firmware_version);
+ kfree(rom_desc);
+ kfree(ti_manuf_desc);
+ return status;
+ }
- dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
- __func__, firmware_version->Ver_Major,
- firmware_version->Ver_Minor,
- OperationalMajorVersion,
- OperationalMinorVersion);
-
- /* Check if we have an old version in the I2C and
- update if necessary */
- if (download_cur_ver < download_new_ver) {
- dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
- __func__,
- firmware_version->Ver_Major,
- firmware_version->Ver_Minor,
- OperationalMajorVersion,
- OperationalMinorVersion);
-
- record = kmalloc(1, GFP_KERNEL);
- if (!record) {
- kfree(firmware_version);
- kfree(rom_desc);
- kfree(ti_manuf_desc);
- return -ENOMEM;
- }
- /* In order to update the I2C firmware we must
- * change the type 2 record to type 0xF2. This
- * will force the UMP to come up in Boot Mode.
- * Then while in boot mode, the driver will
- * download the latest firmware (padded to
- * 15.5k) into the UMP ram. Finally when the
- * device comes back up in download mode the
- * driver will cause the new firmware to be
- * copied from the UMP Ram to I2C and the
- * firmware will update the record type from
- * 0xf2 to 0x02.
- */
- *record = I2C_DESC_TYPE_FIRMWARE_BLANK;
-
- /* Change the I2C Firmware record type to
- 0xf2 to trigger an update */
- status = write_rom(serial, start_address,
- sizeof(*record), record);
- if (status) {
- kfree(record);
- kfree(firmware_version);
- kfree(rom_desc);
- kfree(ti_manuf_desc);
- return status;
- }
-
- /* verify the write -- must do this in order
- * for write to complete before we do the
- * hardware reset
- */
- status = read_rom(serial,
- start_address,
- sizeof(*record),
- record);
- if (status) {
- kfree(record);
- kfree(firmware_version);
- kfree(rom_desc);
- kfree(ti_manuf_desc);
- return status;
- }
-
- if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
- dev_err(dev, "%s - error resetting device\n", __func__);
- kfree(record);
- kfree(firmware_version);
- kfree(rom_desc);
- kfree(ti_manuf_desc);
- return -ENODEV;
- }
-
- dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
-
- /* Reset UMP -- Back to BOOT MODE */
- status = ti_vsend_sync(serial->serial->dev,
- UMPC_HARDWARE_RESET,
- 0, 0, NULL, 0);
-
- dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
-
- /* return an error on purpose. */
+ if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
+ dev_err(dev, "%s - error resetting device\n",
+ __func__);
kfree(record);
kfree(firmware_version);
kfree(rom_desc);
kfree(ti_manuf_desc);
return -ENODEV;
}
+
+ dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
+
+ /* Reset UMP -- Back to BOOT MODE */
+ status = ti_vsend_sync(serial->serial->dev,
+ UMPC_HARDWARE_RESET,
+ 0, 0, NULL, 0,
+ TI_VSEND_TIMEOUT_DEFAULT);
+
+ dev_dbg(dev, "%s - HARDWARE RESET return %d\n",
+ __func__, status);
+
+ /* return an error on purpose. */
+ kfree(record);
kfree(firmware_version);
+ kfree(rom_desc);
+ kfree(ti_manuf_desc);
+ return -ENODEV;
}
- /* Search for type 0xF2 record (firmware blank record) */
- else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) {
+ /* Same or newer fw version is already loaded */
+ serial->fw_version = download_cur_ver;
+ kfree(firmware_version);
+ }
+ /* Search for type 0xF2 record (firmware blank record) */
+ else {
+ start_address = get_descriptor_addr(serial,
+ I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc);
+ if (start_address != 0) {
#define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
- sizeof(struct ti_i2c_firmware_rec))
+ sizeof(struct ti_i2c_firmware_rec))
__u8 *header;
__u8 *vheader;
@@ -1164,7 +1287,8 @@ static int download_fw(struct edgeport_serial *serial)
return -ENOMEM;
}
- dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
+ dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n",
+ __func__);
/*
* In order to update the I2C firmware we must change
@@ -1177,7 +1301,7 @@ static int download_fw(struct edgeport_serial *serial)
* UMP Ram to I2C and the firmware will update the
* record type from 0xf2 to 0x02.
*/
- status = build_i2c_fw_hdr(header, dev);
+ status = build_i2c_fw_hdr(header, fw);
if (status) {
kfree(vheader);
kfree(header);
@@ -1186,8 +1310,10 @@ static int download_fw(struct edgeport_serial *serial)
return -EINVAL;
}
- /* Update I2C with type 0xf2 record with correct
- size and checksum */
+ /*
+ * Update I2C with type 0xf2 record with correct
+ * size and checksum
+ */
status = write_rom(serial,
start_address,
HEADER_SIZE,
@@ -1200,13 +1326,16 @@ static int download_fw(struct edgeport_serial *serial)
return -EINVAL;
}
- /* verify the write -- must do this in order for
- write to complete before we do the hardware reset */
+ /*
+ * verify the write -- must do this in order for
+ * write to complete before we do the hardware reset
+ */
status = read_rom(serial, start_address,
HEADER_SIZE, vheader);
if (status) {
- dev_dbg(dev, "%s - can't read header back\n", __func__);
+ dev_dbg(dev, "%s - can't read header back\n",
+ __func__);
kfree(vheader);
kfree(header);
kfree(rom_desc);
@@ -1214,7 +1343,8 @@ static int download_fw(struct edgeport_serial *serial)
return status;
}
if (memcmp(vheader, header, HEADER_SIZE)) {
- dev_dbg(dev, "%s - write download record failed\n", __func__);
+ dev_dbg(dev, "%s - write download record failed\n",
+ __func__);
kfree(vheader);
kfree(header);
kfree(rom_desc);
@@ -1229,28 +1359,37 @@ static int download_fw(struct edgeport_serial *serial)
/* Tell firmware to copy download image into I2C */
status = ti_vsend_sync(serial->serial->dev,
- UMPC_COPY_DNLD_TO_I2C, 0, 0, NULL, 0);
+ UMPC_COPY_DNLD_TO_I2C,
+ 0, 0, NULL, 0,
+ TI_VSEND_TIMEOUT_FW_DOWNLOAD);
- dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
+ dev_dbg(dev, "%s - Update complete 0x%x\n", __func__,
+ status);
if (status) {
dev_err(dev,
"%s - UMPC_COPY_DNLD_TO_I2C failed\n",
- __func__);
+ __func__);
kfree(rom_desc);
kfree(ti_manuf_desc);
return status;
}
}
-
- // The device is running the download code
- kfree(rom_desc);
- kfree(ti_manuf_desc);
- return 0;
}
- /********************************************************************/
- /* Boot Mode */
- /********************************************************************/
+ /* The device is running the download code */
+ kfree(rom_desc);
+ kfree(ti_manuf_desc);
+ return 0;
+}
+
+static int do_boot_mode(struct edgeport_serial *serial,
+ const struct firmware *fw)
+{
+ struct device *dev = &serial->serial->interface->dev;
+ int status = 0;
+ struct edge_ti_manuf_descriptor *ti_manuf_desc;
+ struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
+
dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
/* Configure the TI device so we can use the BULK pipes for download */
@@ -1266,8 +1405,10 @@ static int download_fw(struct edgeport_serial *serial)
goto stayinbootmode;
}
- /* We have an ION device (I2c Must be programmed)
- Determine I2C image type */
+ /*
+ * We have an ION device (I2c Must be programmed)
+ * Determine I2C image type
+ */
if (i2c_type_bootmode(serial))
goto stayinbootmode;
@@ -1278,11 +1419,9 @@ static int download_fw(struct edgeport_serial *serial)
__u8 cs = 0;
__u8 *buffer;
int buffer_size;
- int err;
- const struct firmware *fw;
- const char *fw_name = "edgeport/down3.bin";
- /* Validate Hardware version number
+ /*
+ * Validate Hardware version number
* Read Manufacturing Descriptor from TI Based Edgeport
*/
ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
@@ -1328,16 +1467,7 @@ static int download_fw(struct edgeport_serial *serial)
/* Initialize the buffer to 0xff (pad the buffer) */
memset(buffer, 0xff, buffer_size);
-
- err = request_firmware(&fw, fw_name, dev);
- if (err) {
- dev_err(dev, "Failed to load image \"%s\" err %d\n",
- fw_name, err);
- kfree(buffer);
- return err;
- }
memcpy(buffer, &fw->data[4], fw->size - 4);
- release_firmware(fw);
for (i = sizeof(struct ti_i2c_image_header);
i < buffer_size; i++) {
@@ -1352,7 +1482,9 @@ static int download_fw(struct edgeport_serial *serial)
header->CheckSum = cs;
/* Download the operational code */
- dev_dbg(dev, "%s - Downloading operational code image (TI UMP)\n", __func__);
+ dev_dbg(dev, "%s - Downloading operational code image version %d.%d (TI UMP)\n",
+ __func__,
+ fw_hdr->major_version, fw_hdr->minor_version);
status = download_code(serial, buffer, buffer_size);
kfree(buffer);
@@ -1379,7 +1511,6 @@ stayinbootmode:
return 0;
}
-
static int ti_do_config(struct edgeport_port *port, int feature, int on)
{
int port_number = port->port->port_number;
@@ -1390,7 +1521,6 @@ static int ti_do_config(struct edgeport_port *port, int feature, int on)
on, NULL, 0);
}
-
static int restore_mcr(struct edgeport_port *port, __u8 mcr)
{
int status = 0;
@@ -1496,7 +1626,6 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
icount->frame++;
}
-
static void edge_interrupt_callback(struct urb *urb)
{
struct edgeport_serial *edge_serial = urb->context;
@@ -1556,8 +1685,9 @@ static void edge_interrupt_callback(struct urb *urb)
case TIUMP_INTERRUPT_CODE_LSR:
lsr = map_line_status(data[1]);
if (lsr & UMP_UART_LSR_DATA_MASK) {
- /* Save the LSR event for bulk read
- completion routine */
+ /*
+ * Save the LSR event for bulk read completion routine
+ */
dev_dbg(dev, "%s - LSR Event Port %u LSR Status = %02x\n",
__func__, port_number, lsr);
edge_port->lsr_event = 1;
@@ -1865,8 +1995,10 @@ static void edge_close(struct usb_serial_port *port)
if (edge_serial == NULL || edge_port == NULL)
return;
- /* The bulkreadcompletion routine will check
- * this flag and dump add read data */
+ /*
+ * The bulkreadcompletion routine will check
+ * this flag and dump add read data
+ */
edge_port->close_pending = 1;
usb_kill_urb(port->read_urb);
@@ -1956,8 +2088,10 @@ static void edge_send(struct usb_serial_port *port, struct tty_struct *tty)
} else
edge_port->port->icount.tx += count;
- /* wakeup any process waiting for writes to complete */
- /* there is now more room in the buffer for new writes */
+ /*
+ * wakeup any process waiting for writes to complete
+ * there is now more room in the buffer for new writes
+ */
if (tty)
tty_wakeup(tty);
}
@@ -2029,8 +2163,10 @@ static void edge_throttle(struct tty_struct *tty)
}
}
- /* if we are implementing RTS/CTS, stop reads */
- /* and the Edgeport will clear the RTS line */
+ /*
+ * if we are implementing RTS/CTS, stop reads
+ * and the Edgeport will clear the RTS line
+ */
if (C_CRTSCTS(tty))
stop_read(edge_port);
@@ -2053,8 +2189,10 @@ static void edge_unthrottle(struct tty_struct *tty)
dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status);
}
}
- /* if we are implementing RTS/CTS, restart reads */
- /* are the Edgeport will assert the RTS line */
+ /*
+ * if we are implementing RTS/CTS, restart reads
+ * are the Edgeport will assert the RTS line
+ */
if (C_CRTSCTS(tty)) {
status = restart_read(edge_port);
if (status)
@@ -2176,8 +2314,10 @@ static void change_port_settings(struct tty_struct *tty,
restart_read(edge_port);
}
- /* if we are implementing XON/XOFF, set the start and stop
- character in the device */
+ /*
+ * if we are implementing XON/XOFF, set the start and stop
+ * character in the device
+ */
config->cXon = START_CHAR(tty);
config->cXoff = STOP_CHAR(tty);
@@ -2373,10 +2513,41 @@ static void edge_break(struct tty_struct *tty, int break_state)
__func__, status);
}
+static void edge_heartbeat_schedule(struct edgeport_serial *edge_serial)
+{
+ if (!edge_serial->use_heartbeat)
+ return;
+
+ schedule_delayed_work(&edge_serial->heartbeat_work,
+ FW_HEARTBEAT_SECS * HZ);
+}
+
+static void edge_heartbeat_work(struct work_struct *work)
+{
+ struct edgeport_serial *serial;
+ struct ti_i2c_desc *rom_desc;
+
+ serial = container_of(work, struct edgeport_serial,
+ heartbeat_work.work);
+
+ rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
+
+ /* Descriptor address request is enough to reset the firmware timer */
+ if (!rom_desc || !get_descriptor_addr(serial, I2C_DESC_TYPE_ION,
+ rom_desc)) {
+ dev_err(&serial->serial->interface->dev,
+ "%s - Incomplete heartbeat\n", __func__);
+ }
+ kfree(rom_desc);
+
+ edge_heartbeat_schedule(serial);
+}
+
static int edge_startup(struct usb_serial *serial)
{
struct edgeport_serial *edge_serial;
int status;
+ u16 product_id;
/* create our private serial structure */
edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
@@ -2393,6 +2564,20 @@ static int edge_startup(struct usb_serial *serial)
return status;
}
+ product_id = le16_to_cpu(
+ edge_serial->serial->dev->descriptor.idProduct);
+
+ /* Currently only the EP/416 models require heartbeat support */
+ if (edge_serial->fw_version > FW_HEARTBEAT_VERSION_CUTOFF) {
+ if (product_id == ION_DEVICE_ID_TI_EDGEPORT_416 ||
+ product_id == ION_DEVICE_ID_TI_EDGEPORT_416B) {
+ edge_serial->use_heartbeat = true;
+ }
+ }
+
+ INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work);
+ edge_heartbeat_schedule(edge_serial);
+
return 0;
}
@@ -2402,7 +2587,10 @@ static void edge_disconnect(struct usb_serial *serial)
static void edge_release(struct usb_serial *serial)
{
- kfree(usb_get_serial_data(serial));
+ struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+ cancel_delayed_work_sync(&edge_serial->heartbeat_work);
+ kfree(edge_serial);
}
static int edge_port_probe(struct usb_serial_port *port)
@@ -2506,6 +2694,25 @@ static int edge_remove_sysfs_attrs(struct usb_serial_port *port)
return 0;
}
+#ifdef CONFIG_PM
+static int edge_suspend(struct usb_serial *serial, pm_message_t message)
+{
+ struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+ cancel_delayed_work_sync(&edge_serial->heartbeat_work);
+
+ return 0;
+}
+
+static int edge_resume(struct usb_serial *serial)
+{
+ struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+ edge_heartbeat_schedule(edge_serial);
+
+ return 0;
+}
+#endif
static struct usb_serial_driver edgeport_1port_device = {
.driver = {
@@ -2538,6 +2745,10 @@ static struct usb_serial_driver edgeport_1port_device = {
.read_int_callback = edge_interrupt_callback,
.read_bulk_callback = edge_bulk_in_callback,
.write_bulk_callback = edge_bulk_out_callback,
+#ifdef CONFIG_PM
+ .suspend = edge_suspend,
+ .resume = edge_resume,
+#endif
};
static struct usb_serial_driver edgeport_2port_device = {
@@ -2571,6 +2782,10 @@ static struct usb_serial_driver edgeport_2port_device = {
.read_int_callback = edge_interrupt_callback,
.read_bulk_callback = edge_bulk_in_callback,
.write_bulk_callback = edge_bulk_out_callback,
+#ifdef CONFIG_PM
+ .suspend = edge_suspend,
+ .resume = edge_resume,
+#endif
};
static struct usb_serial_driver * const serial_drivers[] = {
diff --git a/kernel/drivers/usb/serial/ipaq.c b/kernel/drivers/usb/serial/ipaq.c
index f51a5d52c..ec1b8f2c1 100644
--- a/kernel/drivers/usb/serial/ipaq.c
+++ b/kernel/drivers/usb/serial/ipaq.c
@@ -531,7 +531,8 @@ static int ipaq_open(struct tty_struct *tty,
* through. Since this has a reasonably high failure rate, we retry
* several times.
*/
- while (retries--) {
+ while (retries) {
+ retries--;
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21,
0x1, 0, NULL, 0, 100);
diff --git a/kernel/drivers/usb/serial/mos7720.c b/kernel/drivers/usb/serial/mos7720.c
index 4f70df339..78b4f64c6 100644
--- a/kernel/drivers/usb/serial/mos7720.c
+++ b/kernel/drivers/usb/serial/mos7720.c
@@ -121,26 +121,26 @@ static DEFINE_SPINLOCK(release_lock);
static const unsigned int dummy; /* for clarity in register access fns */
enum mos_regs {
- THR, /* serial port regs */
- RHR,
- IER,
- FCR,
- ISR,
- LCR,
- MCR,
- LSR,
- MSR,
- SPR,
- DLL,
- DLM,
- DPR, /* parallel port regs */
- DSR,
- DCR,
- ECR,
- SP1_REG, /* device control regs */
- SP2_REG, /* serial port 2 (7720 only) */
- PP_REG,
- SP_CONTROL_REG,
+ MOS7720_THR, /* serial port regs */
+ MOS7720_RHR,
+ MOS7720_IER,
+ MOS7720_FCR,
+ MOS7720_ISR,
+ MOS7720_LCR,
+ MOS7720_MCR,
+ MOS7720_LSR,
+ MOS7720_MSR,
+ MOS7720_SPR,
+ MOS7720_DLL,
+ MOS7720_DLM,
+ MOS7720_DPR, /* parallel port regs */
+ MOS7720_DSR,
+ MOS7720_DCR,
+ MOS7720_ECR,
+ MOS7720_SP1_REG, /* device control regs */
+ MOS7720_SP2_REG, /* serial port 2 (7720 only) */
+ MOS7720_PP_REG,
+ MOS7720_SP_CONTROL_REG,
};
/*
@@ -150,26 +150,26 @@ enum mos_regs {
static inline __u16 get_reg_index(enum mos_regs reg)
{
static const __u16 mos7715_index_lookup_table[] = {
- 0x00, /* THR */
- 0x00, /* RHR */
- 0x01, /* IER */
- 0x02, /* FCR */
- 0x02, /* ISR */
- 0x03, /* LCR */
- 0x04, /* MCR */
- 0x05, /* LSR */
- 0x06, /* MSR */
- 0x07, /* SPR */
- 0x00, /* DLL */
- 0x01, /* DLM */
- 0x00, /* DPR */
- 0x01, /* DSR */
- 0x02, /* DCR */
- 0x0a, /* ECR */
- 0x01, /* SP1_REG */
- 0x02, /* SP2_REG (7720 only) */
- 0x04, /* PP_REG (7715 only) */
- 0x08, /* SP_CONTROL_REG */
+ 0x00, /* MOS7720_THR */
+ 0x00, /* MOS7720_RHR */
+ 0x01, /* MOS7720_IER */
+ 0x02, /* MOS7720_FCR */
+ 0x02, /* MOS7720_ISR */
+ 0x03, /* MOS7720_LCR */
+ 0x04, /* MOS7720_MCR */
+ 0x05, /* MOS7720_LSR */
+ 0x06, /* MOS7720_MSR */
+ 0x07, /* MOS7720_SPR */
+ 0x00, /* MOS7720_DLL */
+ 0x01, /* MOS7720_DLM */
+ 0x00, /* MOS7720_DPR */
+ 0x01, /* MOS7720_DSR */
+ 0x02, /* MOS7720_DCR */
+ 0x0a, /* MOS7720_ECR */
+ 0x01, /* MOS7720_SP1_REG */
+ 0x02, /* MOS7720_SP2_REG (7720 only) */
+ 0x04, /* MOS7720_PP_REG (7715 only) */
+ 0x08, /* MOS7720_SP_CONTROL_REG */
};
return mos7715_index_lookup_table[reg];
}
@@ -181,10 +181,10 @@ static inline __u16 get_reg_index(enum mos_regs reg)
static inline __u16 get_reg_value(enum mos_regs reg,
unsigned int serial_portnum)
{
- if (reg >= SP1_REG) /* control reg */
+ if (reg >= MOS7720_SP1_REG) /* control reg */
return 0x0000;
- else if (reg >= DPR) /* parallel port reg (7715 only) */
+ else if (reg >= MOS7720_DPR) /* parallel port reg (7715 only) */
return 0x0100;
else /* serial port reg */
@@ -252,7 +252,8 @@ static inline int mos7715_change_mode(struct mos7715_parport *mos_parport,
enum mos7715_pp_modes mode)
{
mos_parport->shadowECR = mode;
- write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,
+ mos_parport->shadowECR);
return 0;
}
@@ -486,7 +487,7 @@ static void parport_mos7715_write_data(struct parport *pp, unsigned char d)
if (parport_prologue(pp) < 0)
return;
mos7715_change_mode(mos_parport, SPP);
- write_mos_reg(mos_parport->serial, dummy, DPR, (__u8)d);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, (__u8)d);
parport_epilogue(pp);
}
@@ -497,7 +498,7 @@ static unsigned char parport_mos7715_read_data(struct parport *pp)
if (parport_prologue(pp) < 0)
return 0;
- read_mos_reg(mos_parport->serial, dummy, DPR, &d);
+ read_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, &d);
parport_epilogue(pp);
return d;
}
@@ -510,7 +511,7 @@ static void parport_mos7715_write_control(struct parport *pp, unsigned char d)
if (parport_prologue(pp) < 0)
return;
data = ((__u8)d & 0x0f) | (mos_parport->shadowDCR & 0xf0);
- write_mos_reg(mos_parport->serial, dummy, DCR, data);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR, data);
mos_parport->shadowDCR = data;
parport_epilogue(pp);
}
@@ -543,7 +544,8 @@ static unsigned char parport_mos7715_frob_control(struct parport *pp,
if (parport_prologue(pp) < 0)
return 0;
mos_parport->shadowDCR = (mos_parport->shadowDCR & (~mask)) ^ val;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
dcr = mos_parport->shadowDCR & 0x0f;
parport_epilogue(pp);
return dcr;
@@ -581,7 +583,8 @@ static void parport_mos7715_data_forward(struct parport *pp)
return;
mos7715_change_mode(mos_parport, PS2);
mos_parport->shadowDCR &= ~0x20;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
parport_epilogue(pp);
}
@@ -593,7 +596,8 @@ static void parport_mos7715_data_reverse(struct parport *pp)
return;
mos7715_change_mode(mos_parport, PS2);
mos_parport->shadowDCR |= 0x20;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
parport_epilogue(pp);
}
@@ -633,8 +637,10 @@ static void parport_mos7715_restore_state(struct parport *pp,
spin_unlock(&release_lock);
return;
}
- write_parport_reg_nonblock(mos_parport, DCR, mos_parport->shadowDCR);
- write_parport_reg_nonblock(mos_parport, ECR, mos_parport->shadowECR);
+ write_parport_reg_nonblock(mos_parport, MOS7720_DCR,
+ mos_parport->shadowDCR);
+ write_parport_reg_nonblock(mos_parport, MOS7720_ECR,
+ mos_parport->shadowECR);
spin_unlock(&release_lock);
}
@@ -714,14 +720,16 @@ static int mos7715_parport_init(struct usb_serial *serial)
init_completion(&mos_parport->syncmsg_compl);
/* cycle parallel port reset bit */
- write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x80);
- write_mos_reg(mos_parport->serial, dummy, PP_REG, (__u8)0x00);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x80);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x00);
/* initialize device registers */
mos_parport->shadowDCR = DCR_INIT_VAL;
- write_mos_reg(mos_parport->serial, dummy, DCR, mos_parport->shadowDCR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,
+ mos_parport->shadowDCR);
mos_parport->shadowECR = ECR_INIT_VAL;
- write_mos_reg(mos_parport->serial, dummy, ECR, mos_parport->shadowECR);
+ write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,
+ mos_parport->shadowECR);
/* register with parport core */
mos_parport->pp = parport_register_port(0, PARPORT_IRQ_NONE,
@@ -1033,45 +1041,49 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
/* Initialize MCS7720 -- Write Init values to corresponding Registers
*
* Register Index
- * 0 : THR/RHR
- * 1 : IER
- * 2 : FCR
- * 3 : LCR
- * 4 : MCR
- * 5 : LSR
- * 6 : MSR
- * 7 : SPR
+ * 0 : MOS7720_THR/MOS7720_RHR
+ * 1 : MOS7720_IER
+ * 2 : MOS7720_FCR
+ * 3 : MOS7720_LCR
+ * 4 : MOS7720_MCR
+ * 5 : MOS7720_LSR
+ * 6 : MOS7720_MSR
+ * 7 : MOS7720_SPR
*
* 0x08 : SP1/2 Control Reg
*/
port_number = port->port_number;
- read_mos_reg(serial, port_number, LSR, &data);
+ read_mos_reg(serial, port_number, MOS7720_LSR, &data);
dev_dbg(&port->dev, "SS::%p LSR:%x\n", mos7720_port, data);
- write_mos_reg(serial, dummy, SP1_REG, 0x02);
- write_mos_reg(serial, dummy, SP2_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP1_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP2_REG, 0x02);
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
mos7720_port->shadowLCR = 0x03;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
- write_mos_reg(serial, port_number, SP_CONTROL_REG, 0x00);
- read_mos_reg(serial, dummy, SP_CONTROL_REG, &data);
+ write_mos_reg(serial, port_number, MOS7720_SP_CONTROL_REG, 0x00);
+ read_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, &data);
data = data | (port->port_number + 1);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, data);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, data);
mos7720_port->shadowLCR = 0x83;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, THR, 0x0c);
- write_mos_reg(serial, port_number, IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_THR, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
mos7720_port->shadowLCR = 0x03;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
response = usb_submit_urb(port->read_urb, GFP_KERNEL);
if (response)
@@ -1144,8 +1156,8 @@ static void mos7720_close(struct usb_serial_port *port)
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
- write_mos_reg(serial, port->port_number, MCR, 0x00);
- write_mos_reg(serial, port->port_number, IER, 0x00);
+ write_mos_reg(serial, port->port_number, MOS7720_MCR, 0x00);
+ write_mos_reg(serial, port->port_number, MOS7720_IER, 0x00);
mos7720_port->open = 0;
}
@@ -1169,7 +1181,8 @@ static void mos7720_break(struct tty_struct *tty, int break_state)
data = mos7720_port->shadowLCR & ~UART_LCR_SBC;
mos7720_port->shadowLCR = data;
- write_mos_reg(serial, port->port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port->port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
}
/*
@@ -1297,7 +1310,7 @@ static void mos7720_throttle(struct tty_struct *tty)
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios.c_cflag & CRTSCTS) {
mos7720_port->shadowMCR &= ~UART_MCR_RTS;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
}
}
@@ -1327,7 +1340,7 @@ static void mos7720_unthrottle(struct tty_struct *tty)
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios.c_cflag & CRTSCTS) {
mos7720_port->shadowMCR |= UART_MCR_RTS;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
}
}
@@ -1352,35 +1365,39 @@ static int set_higher_rates(struct moschip_port *mos7720_port,
dev_dbg(&port->dev, "Sending Setting Commands ..........\n");
port_number = port->port_number;
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, 0x00);
/***********************************************
* Set for higher rates *
***********************************************/
/* writing baud rate verbatum into uart clock field clearly not right */
if (port_number == 0)
- sp_reg = SP1_REG;
+ sp_reg = MOS7720_SP1_REG;
else
- sp_reg = SP2_REG;
+ sp_reg = MOS7720_SP2_REG;
write_mos_reg(serial, dummy, sp_reg, baud * 0x10);
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x03);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG, 0x03);
mos7720_port->shadowMCR = 0x2b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/***********************************************
* Set DLL/DLM
***********************************************/
mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
- write_mos_reg(serial, port_number, DLL, 0x01);
- write_mos_reg(serial, port_number, DLM, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_DLL, 0x01);
+ write_mos_reg(serial, port_number, MOS7720_DLM, 0x00);
mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
return 0;
}
@@ -1488,15 +1505,16 @@ static int send_cmd_write_baud_rate(struct moschip_port *mos7720_port,
/* Enable access to divisor latch */
mos7720_port->shadowLCR = mos7720_port->shadowLCR | UART_LCR_DLAB;
- write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, number, MOS7720_LCR, mos7720_port->shadowLCR);
/* Write the divisor */
- write_mos_reg(serial, number, DLL, (__u8)(divisor & 0xff));
- write_mos_reg(serial, number, DLM, (__u8)((divisor & 0xff00) >> 8));
+ write_mos_reg(serial, number, MOS7720_DLL, (__u8)(divisor & 0xff));
+ write_mos_reg(serial, number, MOS7720_DLM,
+ (__u8)((divisor & 0xff00) >> 8));
/* Disable access to divisor latch */
mos7720_port->shadowLCR = mos7720_port->shadowLCR & ~UART_LCR_DLAB;
- write_mos_reg(serial, number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, number, MOS7720_LCR, mos7720_port->shadowLCR);
return status;
}
@@ -1600,14 +1618,16 @@ static void change_port_settings(struct tty_struct *tty,
/* Disable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x00);
- write_mos_reg(serial, port_number, FCR, 0x00);
- write_mos_reg(serial, port_number, FCR, 0xcf);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0x00);
+ write_mos_reg(serial, port_number, MOS7720_FCR, 0xcf);
/* Send the updated LCR value to the mos7720 */
- write_mos_reg(serial, port_number, LCR, mos7720_port->shadowLCR);
+ write_mos_reg(serial, port_number, MOS7720_LCR,
+ mos7720_port->shadowLCR);
mos7720_port->shadowMCR = 0x0b;
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/* set up the MCR register and send it to the mos7720 */
mos7720_port->shadowMCR = UART_MCR_OUT2;
@@ -1619,14 +1639,17 @@ static void change_port_settings(struct tty_struct *tty,
/* To set hardware flow control to the specified *
* serial port, in SP1/2_CONTROL_REG */
if (port_number)
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG,
+ 0x01);
else
- write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02);
+ write_mos_reg(serial, dummy, MOS7720_SP_CONTROL_REG,
+ 0x02);
} else
mos7720_port->shadowMCR &= ~(UART_MCR_XONANY);
- write_mos_reg(serial, port_number, MCR, mos7720_port->shadowMCR);
+ write_mos_reg(serial, port_number, MOS7720_MCR,
+ mos7720_port->shadowMCR);
/* Determine divisor based on baud rate */
baud = tty_get_baud_rate(tty);
@@ -1639,7 +1662,7 @@ static void change_port_settings(struct tty_struct *tty,
if (baud >= 230400) {
set_higher_rates(mos7720_port, baud);
/* Enable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
return;
}
@@ -1650,7 +1673,7 @@ static void change_port_settings(struct tty_struct *tty,
if (cflag & CBAUD)
tty_encode_baud_rate(tty, baud, baud);
/* Enable Interrupts */
- write_mos_reg(serial, port_number, IER, 0x0c);
+ write_mos_reg(serial, port_number, MOS7720_IER, 0x0c);
if (port->read_urb->status != -EINPROGRESS) {
status = usb_submit_urb(port->read_urb, GFP_KERNEL);
@@ -1725,7 +1748,7 @@ static int get_lsr_info(struct tty_struct *tty,
count = mos7720_chars_in_buffer(tty);
if (count == 0) {
- read_mos_reg(port->serial, port_number, LSR, &data);
+ read_mos_reg(port->serial, port_number, MOS7720_LSR, &data);
if ((data & (UART_LSR_TEMT | UART_LSR_THRE))
== (UART_LSR_TEMT | UART_LSR_THRE)) {
dev_dbg(&port->dev, "%s -- Empty\n", __func__);
@@ -1782,7 +1805,7 @@ static int mos7720_tiocmset(struct tty_struct *tty,
mcr &= ~UART_MCR_LOOP;
mos7720_port->shadowMCR = mcr;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
return 0;
@@ -1827,7 +1850,7 @@ static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd,
}
mos7720_port->shadowMCR = mcr;
- write_mos_reg(port->serial, port->port_number, MCR,
+ write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
mos7720_port->shadowMCR);
return 0;
@@ -1942,7 +1965,7 @@ static int mos7720_startup(struct usb_serial *serial)
}
#endif
/* LSR For Port 1 */
- read_mos_reg(serial, 0, LSR, &data);
+ read_mos_reg(serial, 0, MOS7720_LSR, &data);
dev_dbg(&dev->dev, "LSR:%x\n", data);
return 0;
diff --git a/kernel/drivers/usb/serial/mos7840.c b/kernel/drivers/usb/serial/mos7840.c
index e4473a910..8ac9b55f0 100644
--- a/kernel/drivers/usb/serial/mos7840.c
+++ b/kernel/drivers/usb/serial/mos7840.c
@@ -2301,17 +2301,14 @@ static int mos7840_port_probe(struct usb_serial_port *port)
goto error;
}
- init_timer(&mos7840_port->led_timer1);
- mos7840_port->led_timer1.function = mos7840_led_off;
+ setup_timer(&mos7840_port->led_timer1, mos7840_led_off,
+ (unsigned long)mos7840_port);
mos7840_port->led_timer1.expires =
jiffies + msecs_to_jiffies(LED_ON_MS);
- mos7840_port->led_timer1.data = (unsigned long)mos7840_port;
-
- init_timer(&mos7840_port->led_timer2);
- mos7840_port->led_timer2.function = mos7840_led_flag_off;
+ setup_timer(&mos7840_port->led_timer2, mos7840_led_flag_off,
+ (unsigned long)mos7840_port);
mos7840_port->led_timer2.expires =
jiffies + msecs_to_jiffies(LED_OFF_MS);
- mos7840_port->led_timer2.data = (unsigned long)mos7840_port;
/* Turn off LED */
mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300);
diff --git a/kernel/drivers/usb/serial/mxuport.c b/kernel/drivers/usb/serial/mxuport.c
index 460a40669..31a8b47f1 100644
--- a/kernel/drivers/usb/serial/mxuport.c
+++ b/kernel/drivers/usb/serial/mxuport.c
@@ -1137,13 +1137,9 @@ static int mxuport_port_probe(struct usb_serial_port *port)
return err;
/* Set interface (RS-232) */
- err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_INTERFACE,
- MX_INT_RS232,
- port->port_number);
- if (err)
- return err;
-
- return 0;
+ return mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_INTERFACE,
+ MX_INT_RS232,
+ port->port_number);
}
static int mxuport_alloc_write_urb(struct usb_serial *serial,
diff --git a/kernel/drivers/usb/serial/option.c b/kernel/drivers/usb/serial/option.c
index 876423b88..348e19834 100644
--- a/kernel/drivers/usb/serial/option.c
+++ b/kernel/drivers/usb/serial/option.c
@@ -48,7 +48,6 @@ static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id);
static int option_attach(struct usb_serial *serial);
static void option_release(struct usb_serial *serial);
-static int option_send_setup(struct usb_serial_port *port);
static void option_instat_callback(struct urb *urb);
/* Vendor and product IDs */
@@ -162,6 +161,7 @@ static void option_instat_callback(struct urb *urb);
#define NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_HIGHSPEED 0x9001
#define NOVATELWIRELESS_PRODUCT_E362 0x9010
#define NOVATELWIRELESS_PRODUCT_E371 0x9011
+#define NOVATELWIRELESS_PRODUCT_U620L 0x9022
#define NOVATELWIRELESS_PRODUCT_G2 0xA010
#define NOVATELWIRELESS_PRODUCT_MC551 0xB001
@@ -234,8 +234,6 @@ static void option_instat_callback(struct urb *urb);
#define QUALCOMM_VENDOR_ID 0x05C6
-#define SIERRA_VENDOR_ID 0x1199
-
#define CMOTECH_VENDOR_ID 0x16d8
#define CMOTECH_PRODUCT_6001 0x6001
#define CMOTECH_PRODUCT_CMU_300 0x6002
@@ -270,6 +268,9 @@ static void option_instat_callback(struct urb *urb);
#define TELIT_PRODUCT_CC864_SINGLE 0x1006
#define TELIT_PRODUCT_DE910_DUAL 0x1010
#define TELIT_PRODUCT_UE910_V2 0x1012
+#define TELIT_PRODUCT_LE922_USBCFG0 0x1042
+#define TELIT_PRODUCT_LE922_USBCFG3 0x1043
+#define TELIT_PRODUCT_LE922_USBCFG5 0x1045
#define TELIT_PRODUCT_LE920 0x1200
#define TELIT_PRODUCT_LE910 0x1201
@@ -278,6 +279,10 @@ static void option_instat_callback(struct urb *urb);
#define ZTE_PRODUCT_MF622 0x0001
#define ZTE_PRODUCT_MF628 0x0015
#define ZTE_PRODUCT_MF626 0x0031
+#define ZTE_PRODUCT_ZM8620_X 0x0396
+#define ZTE_PRODUCT_ME3620_MBIM 0x0426
+#define ZTE_PRODUCT_ME3620_X 0x1432
+#define ZTE_PRODUCT_ME3620_L 0x1433
#define ZTE_PRODUCT_AC2726 0xfff1
#define ZTE_PRODUCT_MG880 0xfffd
#define ZTE_PRODUCT_CDMA_TECH 0xfffe
@@ -311,6 +316,7 @@ static void option_instat_callback(struct urb *urb);
#define TOSHIBA_PRODUCT_G450 0x0d45
#define ALINK_VENDOR_ID 0x1e0e
+#define SIMCOM_PRODUCT_SIM7100E 0x9001 /* Yes, ALINK_VENDOR_ID */
#define ALINK_PRODUCT_PH300 0x9100
#define ALINK_PRODUCT_3GU 0x9200
@@ -353,6 +359,7 @@ static void option_instat_callback(struct urb *urb);
/* This is the 4G XS Stick W14 a.k.a. Mobilcom Debitel Surf-Stick *
* It seems to contain a Qualcomm QSC6240/6290 chipset */
#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603
+#define FOUR_G_SYSTEMS_PRODUCT_W100 0x9b01
/* iBall 3.5G connect wireless modem */
#define IBALL_3_5G_CONNECT 0x9605
@@ -518,6 +525,11 @@ static const struct option_blacklist_info four_g_w14_blacklist = {
.sendsetup = BIT(0) | BIT(1),
};
+static const struct option_blacklist_info four_g_w100_blacklist = {
+ .sendsetup = BIT(1) | BIT(2),
+ .reserved = BIT(3),
+};
+
static const struct option_blacklist_info alcatel_x200_blacklist = {
.sendsetup = BIT(0) | BIT(1),
.reserved = BIT(4),
@@ -544,6 +556,18 @@ static const struct option_blacklist_info zte_mc2716_z_blacklist = {
.sendsetup = BIT(1) | BIT(2) | BIT(3),
};
+static const struct option_blacklist_info zte_me3620_mbim_blacklist = {
+ .reserved = BIT(2) | BIT(3) | BIT(4),
+};
+
+static const struct option_blacklist_info zte_me3620_xl_blacklist = {
+ .reserved = BIT(3) | BIT(4) | BIT(5),
+};
+
+static const struct option_blacklist_info zte_zm8620_x_blacklist = {
+ .reserved = BIT(3) | BIT(4) | BIT(5),
+};
+
static const struct option_blacklist_info huawei_cdc12_blacklist = {
.reserved = BIT(1) | BIT(2),
};
@@ -585,6 +609,10 @@ static const struct option_blacklist_info zte_1255_blacklist = {
.reserved = BIT(3) | BIT(4),
};
+static const struct option_blacklist_info simcom_sim7100e_blacklist = {
+ .reserved = BIT(5) | BIT(6),
+};
+
static const struct option_blacklist_info telit_le910_blacklist = {
.sendsetup = BIT(0),
.reserved = BIT(1) | BIT(2),
@@ -595,9 +623,14 @@ static const struct option_blacklist_info telit_le920_blacklist = {
.reserved = BIT(1) | BIT(5),
};
-static const struct option_blacklist_info sierra_mc73xx_blacklist = {
- .sendsetup = BIT(0) | BIT(2),
- .reserved = BIT(8) | BIT(10) | BIT(11),
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = {
+ .sendsetup = BIT(2),
+ .reserved = BIT(0) | BIT(1) | BIT(3),
+};
+
+static const struct option_blacklist_info telit_le922_blacklist_usbcfg3 = {
+ .sendsetup = BIT(0),
+ .reserved = BIT(1) | BIT(2) | BIT(3),
};
static const struct usb_device_id option_ids[] = {
@@ -1044,6 +1077,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC551, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E362, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_E371, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_U620L, 0xff, 0x00, 0x00) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) },
{ USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) },
@@ -1094,13 +1128,13 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) },
{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */
+ { USB_DEVICE_AND_INTERFACE_INFO(QUALCOMM_VENDOR_ID, 0x6001, 0xff, 0xff, 0xff), /* 4G LTE usb-modem U901 */
+ .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
- { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x68c0, 0xff),
- .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */
- { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff),
- .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC7305/MC7355 */
+ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9003), /* Quectel UC20 */
+ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),
@@ -1148,6 +1182,12 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_CC864_SINGLE) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_DE910_DUAL) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
+ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
+ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
+ .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
@@ -1591,6 +1631,14 @@ static const struct usb_device_id option_ids[] = {
.driver_info = (kernel_ulong_t)&zte_ad3812_z_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2716, 0xff, 0xff, 0xff),
.driver_info = (kernel_ulong_t)&zte_mc2716_z_blacklist },
+ { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_ME3620_L),
+ .driver_info = (kernel_ulong_t)&zte_me3620_xl_blacklist },
+ { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_ME3620_MBIM),
+ .driver_info = (kernel_ulong_t)&zte_me3620_mbim_blacklist },
+ { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_ME3620_X),
+ .driver_info = (kernel_ulong_t)&zte_me3620_xl_blacklist },
+ { USB_DEVICE(ZTE_VENDOR_ID, ZTE_PRODUCT_ZM8620_X),
+ .driver_info = (kernel_ulong_t)&zte_zm8620_x_blacklist },
{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x01) },
{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x05) },
{ USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x86, 0x10) },
@@ -1609,6 +1657,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(ALINK_VENDOR_ID, 0x9000) },
{ USB_DEVICE(ALINK_VENDOR_ID, ALINK_PRODUCT_PH300) },
{ USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) },
+ { USB_DEVICE(ALINK_VENDOR_ID, SIMCOM_PRODUCT_SIM7100E),
+ .driver_info = (kernel_ulong_t)&simcom_sim7100e_blacklist },
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S_X200),
.driver_info = (kernel_ulong_t)&alcatel_x200_blacklist
},
@@ -1629,6 +1679,9 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
.driver_info = (kernel_ulong_t)&four_g_w14_blacklist
},
+ { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W100),
+ .driver_info = (kernel_ulong_t)&four_g_w100_blacklist
+ },
{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, SPEEDUP_PRODUCT_SU9800, 0xff) },
{ USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
{ USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
@@ -1656,7 +1709,7 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
- { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+ { USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX, 0xff) },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) },
@@ -1811,10 +1864,6 @@ static struct usb_serial_driver * const serial_drivers[] = {
&option_1port_device, NULL
};
-struct option_private {
- u8 bInterfaceNumber;
-};
-
module_usb_serial_driver(serial_drivers, option_ids);
static int option_probe(struct usb_serial *serial,
@@ -1858,29 +1907,19 @@ static int option_attach(struct usb_serial *serial)
struct usb_interface_descriptor *iface_desc;
const struct option_blacklist_info *blacklist;
struct usb_wwan_intf_private *data;
- struct option_private *priv;
data = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL);
if (!data)
return -ENOMEM;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- kfree(data);
- return -ENOMEM;
- }
-
/* Retrieve blacklist info stored at probe. */
blacklist = usb_get_serial_data(serial);
iface_desc = &serial->interface->cur_altsetting->desc;
- priv->bInterfaceNumber = iface_desc->bInterfaceNumber;
- data->private = priv;
-
if (!blacklist || !test_bit(iface_desc->bInterfaceNumber,
&blacklist->sendsetup)) {
- data->send_setup = option_send_setup;
+ data->use_send_setup = 1;
}
spin_lock_init(&data->susp_lock);
@@ -1892,9 +1931,7 @@ static int option_attach(struct usb_serial *serial)
static void option_release(struct usb_serial *serial)
{
struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
- struct option_private *priv = intfdata->private;
- kfree(priv);
kfree(intfdata);
}
@@ -1941,7 +1978,7 @@ static void option_instat_callback(struct urb *urb)
} else if (status == -ENOENT || status == -ESHUTDOWN) {
dev_dbg(dev, "%s: urb stopped: %d\n", __func__, status);
} else
- dev_err(dev, "%s: error %d\n", __func__, status);
+ dev_dbg(dev, "%s: error %d\n", __func__, status);
/* Resubmit urb so we continue receiving IRQ data */
if (status != -ESHUTDOWN && status != -ENOENT) {
@@ -1953,40 +1990,6 @@ static void option_instat_callback(struct urb *urb)
}
}
-/** send RTS/DTR state to the port.
- *
- * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN
- * CDC.
-*/
-static int option_send_setup(struct usb_serial_port *port)
-{
- struct usb_serial *serial = port->serial;
- struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
- struct option_private *priv = intfdata->private;
- struct usb_wwan_port_private *portdata;
- int val = 0;
- int res;
-
- portdata = usb_get_serial_port_data(port);
-
- if (portdata->dtr_state)
- val |= 0x01;
- if (portdata->rts_state)
- val |= 0x02;
-
- res = usb_autopm_get_interface(serial->interface);
- if (res)
- return res;
-
- res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- 0x22, 0x21, val, priv->bInterfaceNumber, NULL,
- 0, USB_CTRL_SET_TIMEOUT);
-
- usb_autopm_put_interface(serial->interface);
-
- return res;
-}
-
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/usb/serial/qcserial.c b/kernel/drivers/usb/serial/qcserial.c
index ebcec8cda..1bc6089b9 100644
--- a/kernel/drivers/usb/serial/qcserial.c
+++ b/kernel/drivers/usb/serial/qcserial.c
@@ -22,6 +22,8 @@
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
+#define QUECTEL_EC20_PID 0x9215
+
/* standard device layouts supported by this driver */
enum qcserial_layouts {
QCSERIAL_G2K = 0, /* Gobi 2000 */
@@ -143,9 +145,11 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */
{DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */
{DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */
+ {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */
{DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */
{DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */
{DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */
{DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */
{DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */
{DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */
@@ -153,12 +157,17 @@ static const struct usb_device_id id_table[] = {
{DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */
{DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */
{DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */
+ {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */
{DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
{DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
+ {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
/* Huawei devices */
{DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
@@ -167,6 +176,38 @@ static const struct usb_device_id id_table[] = {
};
MODULE_DEVICE_TABLE(usb, id_table);
+static int handle_quectel_ec20(struct device *dev, int ifnum)
+{
+ int altsetting = 0;
+
+ /*
+ * Quectel EC20 Mini PCIe LTE module layout:
+ * 0: DM/DIAG (use libqcdm from ModemManager for communication)
+ * 1: NMEA
+ * 2: AT-capable modem port
+ * 3: Modem interface
+ * 4: NDIS
+ */
+ switch (ifnum) {
+ case 0:
+ dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n");
+ break;
+ case 1:
+ dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n");
+ break;
+ case 2:
+ case 3:
+ dev_dbg(dev, "Quectel EC20 Modem port found\n");
+ break;
+ case 4:
+ /* Don't claim the QMI/net interface */
+ altsetting = -1;
+ break;
+ }
+
+ return altsetting;
+}
+
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
struct usb_host_interface *intf = serial->interface->cur_altsetting;
@@ -175,6 +216,11 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
__u8 nintf;
__u8 ifnum;
int altsetting = -1;
+ bool sendsetup = false;
+
+ /* we only support vendor specific functions */
+ if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
+ goto done;
nintf = serial->dev->actconfig->desc.bNumInterfaces;
dev_dbg(dev, "Num Interfaces = %d\n", nintf);
@@ -235,6 +281,12 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
altsetting = -1;
break;
case QCSERIAL_G2K:
+ /* handle non-standard layouts */
+ if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) {
+ altsetting = handle_quectel_ec20(dev, ifnum);
+ goto done;
+ }
+
/*
* Gobi 2K+ USB layout:
* 0: QMI/net
@@ -286,6 +338,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
break;
case 3:
dev_dbg(dev, "Modem port found\n");
+ sendsetup = true;
break;
default:
/* don't claim any unsupported interface */
@@ -295,29 +348,39 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
break;
case QCSERIAL_HWI:
/*
- * Huawei layout:
- * 0: AT-capable modem port
- * 1: DM/DIAG
- * 2: AT-capable modem port
- * 3: CCID-compatible PCSC interface
- * 4: QMI/net
- * 5: NMEA
+ * Huawei devices map functions by subclass + protocol
+ * instead of interface numbers. The protocol identify
+ * a specific function, while the subclass indicate a
+ * specific firmware source
+ *
+ * This is a blacklist of functions known to be
+ * non-serial. The rest are assumed to be serial and
+ * will be handled by this driver
*/
- switch (ifnum) {
- case 0:
- case 2:
- dev_dbg(dev, "Modem port found\n");
- break;
- case 1:
- dev_dbg(dev, "DM/DIAG interface found\n");
- break;
- case 5:
- dev_dbg(dev, "NMEA GPS interface found\n");
- break;
- default:
- /* don't claim any unsupported interface */
+ switch (intf->desc.bInterfaceProtocol) {
+ /* QMI combined (qmi_wwan) */
+ case 0x07:
+ case 0x37:
+ case 0x67:
+ /* QMI data (qmi_wwan) */
+ case 0x08:
+ case 0x38:
+ case 0x68:
+ /* QMI control (qmi_wwan) */
+ case 0x09:
+ case 0x39:
+ case 0x69:
+ /* NCM like (huawei_cdc_ncm) */
+ case 0x16:
+ case 0x46:
+ case 0x76:
altsetting = -1;
break;
+ default:
+ dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n",
+ intf->desc.bInterfaceClass,
+ intf->desc.bInterfaceSubClass,
+ intf->desc.bInterfaceProtocol);
}
break;
default:
@@ -337,17 +400,25 @@ done:
}
}
+ if (!retval)
+ usb_set_serial_data(serial, (void *)(unsigned long)sendsetup);
+
return retval;
}
static int qc_attach(struct usb_serial *serial)
{
struct usb_wwan_intf_private *data;
+ bool sendsetup;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ sendsetup = !!(unsigned long)(usb_get_serial_data(serial));
+ if (sendsetup)
+ data->use_send_setup = 1;
+
spin_lock_init(&data->susp_lock);
usb_set_serial_data(serial, data);
@@ -374,6 +445,7 @@ static struct usb_serial_driver qcdevice = {
.probe = qcprobe,
.open = usb_wwan_open,
.close = usb_wwan_close,
+ .dtr_rts = usb_wwan_dtr_rts,
.write = usb_wwan_write,
.write_room = usb_wwan_write_room,
.chars_in_buffer = usb_wwan_chars_in_buffer,
diff --git a/kernel/drivers/usb/serial/symbolserial.c b/kernel/drivers/usb/serial/symbolserial.c
index 6ed804450..37f3ad15e 100644
--- a/kernel/drivers/usb/serial/symbolserial.c
+++ b/kernel/drivers/usb/serial/symbolserial.c
@@ -60,17 +60,15 @@ static void symbol_int_callback(struct urb *urb)
usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
+ /*
+ * Data from the device comes with a 1 byte header:
+ *
+ * <size of data> <data>...
+ */
if (urb->actual_length > 1) {
- data_length = urb->actual_length - 1;
-
- /*
- * Data from the device comes with a 1 byte header:
- *
- * <size of data>data...
- * This is real data to be sent to the tty layer
- * we pretty much just ignore the size and send everything
- * else to the tty layer.
- */
+ data_length = data[0];
+ if (data_length > (urb->actual_length - 1))
+ data_length = urb->actual_length - 1;
tty_insert_flip_string(&port->port, &data[1], data_length);
tty_flip_buffer_push(&port->port);
} else {
diff --git a/kernel/drivers/usb/serial/ti_usb_3410_5052.c b/kernel/drivers/usb/serial/ti_usb_3410_5052.c
index e9da41d9f..2694df2f4 100644
--- a/kernel/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/kernel/drivers/usb/serial/ti_usb_3410_5052.c
@@ -159,6 +159,7 @@ static const struct usb_device_id ti_id_table_3410[] = {
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STEREO_PLUG_ID) },
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
+ { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
{ } /* terminator */
};
@@ -191,6 +192,7 @@ static const struct usb_device_id ti_id_table_combined[] = {
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
+ { USB_DEVICE(HONEYWELL_VENDOR_ID, HONEYWELL_HGI80_PRODUCT_ID) },
{ } /* terminator */
};
diff --git a/kernel/drivers/usb/serial/ti_usb_3410_5052.h b/kernel/drivers/usb/serial/ti_usb_3410_5052.h
index 4a2423e84..98f35c656 100644
--- a/kernel/drivers/usb/serial/ti_usb_3410_5052.h
+++ b/kernel/drivers/usb/serial/ti_usb_3410_5052.h
@@ -56,6 +56,10 @@
#define ABBOTT_PRODUCT_ID ABBOTT_STEREO_PLUG_ID
#define ABBOTT_STRIP_PORT_ID 0x3420
+/* Honeywell vendor and product IDs */
+#define HONEYWELL_VENDOR_ID 0x10ac
+#define HONEYWELL_HGI80_PRODUCT_ID 0x0102 /* Honeywell HGI80 */
+
/* Commands */
#define TI_GET_VERSION 0x01
#define TI_GET_PORT_STATUS 0x02
diff --git a/kernel/drivers/usb/serial/usb-serial-simple.c b/kernel/drivers/usb/serial/usb-serial-simple.c
index 365866289..a204782ae 100644
--- a/kernel/drivers/usb/serial/usb-serial-simple.c
+++ b/kernel/drivers/usb/serial/usb-serial-simple.c
@@ -53,6 +53,7 @@ DEVICE(funsoft, FUNSOFT_IDS);
/* Infineon Flashloader driver */
#define FLASHLOADER_IDS() \
+ { USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
{ USB_DEVICE(0x8087, 0x0716) }
DEVICE(flashloader, FLASHLOADER_IDS);
diff --git a/kernel/drivers/usb/serial/usb-wwan.h b/kernel/drivers/usb/serial/usb-wwan.h
index f22dff58b..44b25c08c 100644
--- a/kernel/drivers/usb/serial/usb-wwan.h
+++ b/kernel/drivers/usb/serial/usb-wwan.h
@@ -34,9 +34,9 @@ extern int usb_wwan_resume(struct usb_serial *serial);
struct usb_wwan_intf_private {
spinlock_t susp_lock;
unsigned int suspended:1;
+ unsigned int use_send_setup:1;
int in_flight;
unsigned int open_ports;
- int (*send_setup) (struct usb_serial_port *port);
void *private;
};
diff --git a/kernel/drivers/usb/serial/usb_wwan.c b/kernel/drivers/usb/serial/usb_wwan.c
index 2f805cb38..be9cb61b4 100644
--- a/kernel/drivers/usb/serial/usb_wwan.c
+++ b/kernel/drivers/usb/serial/usb_wwan.c
@@ -36,6 +36,40 @@
#include <linux/serial.h>
#include "usb-wwan.h"
+/*
+ * Generate DTR/RTS signals on the port using the SET_CONTROL_LINE_STATE request
+ * in CDC ACM.
+ */
+static int usb_wwan_send_setup(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ struct usb_wwan_port_private *portdata;
+ int val = 0;
+ int ifnum;
+ int res;
+
+ portdata = usb_get_serial_port_data(port);
+
+ if (portdata->dtr_state)
+ val |= 0x01;
+ if (portdata->rts_state)
+ val |= 0x02;
+
+ ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
+
+ res = usb_autopm_get_interface(serial->interface);
+ if (res)
+ return res;
+
+ res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ 0x22, 0x21, val, ifnum, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+
+ usb_autopm_put_interface(port->serial->interface);
+
+ return res;
+}
+
void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
{
struct usb_wwan_port_private *portdata;
@@ -43,7 +77,7 @@ void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
intfdata = usb_get_serial_data(port->serial);
- if (!intfdata->send_setup)
+ if (!intfdata->use_send_setup)
return;
portdata = usb_get_serial_port_data(port);
@@ -51,7 +85,7 @@ void usb_wwan_dtr_rts(struct usb_serial_port *port, int on)
portdata->rts_state = on;
portdata->dtr_state = on;
- intfdata->send_setup(port);
+ usb_wwan_send_setup(port);
}
EXPORT_SYMBOL(usb_wwan_dtr_rts);
@@ -84,7 +118,7 @@ int usb_wwan_tiocmset(struct tty_struct *tty,
portdata = usb_get_serial_port_data(port);
intfdata = usb_get_serial_data(port->serial);
- if (!intfdata->send_setup)
+ if (!intfdata->use_send_setup)
return -EINVAL;
/* FIXME: what locks portdata fields ? */
@@ -97,7 +131,7 @@ int usb_wwan_tiocmset(struct tty_struct *tty,
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
- return intfdata->send_setup(port);
+ return usb_wwan_send_setup(port);
}
EXPORT_SYMBOL(usb_wwan_tiocmset);
@@ -282,7 +316,7 @@ static void usb_wwan_indat_callback(struct urb *urb)
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err) {
- if (err != -EPERM) {
+ if (err != -EPERM && err != -ENODEV) {
dev_err(dev, "%s: resubmit read urb failed. (%d)\n",
__func__, err);
/* busy also in error unless we are killed */
diff --git a/kernel/drivers/usb/serial/visor.c b/kernel/drivers/usb/serial/visor.c
index 60afb39eb..337a0be89 100644
--- a/kernel/drivers/usb/serial/visor.c
+++ b/kernel/drivers/usb/serial/visor.c
@@ -544,6 +544,11 @@ static int treo_attach(struct usb_serial *serial)
(serial->num_interrupt_in == 0))
return 0;
+ if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) {
+ dev_err(&serial->interface->dev, "missing endpoints\n");
+ return -ENODEV;
+ }
+
/*
* It appears that Treos and Kyoceras want to use the
* 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
@@ -597,8 +602,10 @@ static int clie_5_attach(struct usb_serial *serial)
*/
/* some sanity check */
- if (serial->num_ports < 2)
- return -1;
+ if (serial->num_bulk_out < 2) {
+ dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
+ return -ENODEV;
+ }
/* port 0 now uses the modified endpoint Address */
port = serial->port[0];
diff --git a/kernel/drivers/usb/serial/whiteheat.c b/kernel/drivers/usb/serial/whiteheat.c
index 6c3734d2b..d3ea90bef 100644
--- a/kernel/drivers/usb/serial/whiteheat.c
+++ b/kernel/drivers/usb/serial/whiteheat.c
@@ -80,6 +80,8 @@ static int whiteheat_firmware_download(struct usb_serial *serial,
static int whiteheat_firmware_attach(struct usb_serial *serial);
/* function prototypes for the Connect Tech WhiteHEAT serial converter */
+static int whiteheat_probe(struct usb_serial *serial,
+ const struct usb_device_id *id);
static int whiteheat_attach(struct usb_serial *serial);
static void whiteheat_release(struct usb_serial *serial);
static int whiteheat_port_probe(struct usb_serial_port *port);
@@ -116,6 +118,7 @@ static struct usb_serial_driver whiteheat_device = {
.description = "Connect Tech - WhiteHEAT",
.id_table = id_table_std,
.num_ports = 4,
+ .probe = whiteheat_probe,
.attach = whiteheat_attach,
.release = whiteheat_release,
.port_probe = whiteheat_port_probe,
@@ -217,6 +220,34 @@ static int whiteheat_firmware_attach(struct usb_serial *serial)
/*****************************************************************************
* Connect Tech's White Heat serial driver functions
*****************************************************************************/
+
+static int whiteheat_probe(struct usb_serial *serial,
+ const struct usb_device_id *id)
+{
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ size_t num_bulk_in = 0;
+ size_t num_bulk_out = 0;
+ size_t min_num_bulk;
+ unsigned int i;
+
+ iface_desc = serial->interface->cur_altsetting;
+
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+ endpoint = &iface_desc->endpoint[i].desc;
+ if (usb_endpoint_is_bulk_in(endpoint))
+ ++num_bulk_in;
+ if (usb_endpoint_is_bulk_out(endpoint))
+ ++num_bulk_out;
+ }
+
+ min_num_bulk = COMMAND_PORT + 1;
+ if (num_bulk_in < min_num_bulk || num_bulk_out < min_num_bulk)
+ return -ENODEV;
+
+ return 0;
+}
+
static int whiteheat_attach(struct usb_serial *serial)
{
struct usb_serial_port *command_port;
diff --git a/kernel/drivers/usb/storage/alauda.c b/kernel/drivers/usb/storage/alauda.c
index 4b55ab66a..171fa7d79 100644
--- a/kernel/drivers/usb/storage/alauda.c
+++ b/kernel/drivers/usb/storage/alauda.c
@@ -42,6 +42,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-alauda"
MODULE_DESCRIPTION("Driver for Alauda-based card readers");
MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>");
@@ -1232,6 +1235,8 @@ static int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_FAILED;
}
+static struct scsi_host_template alauda_host_template;
+
static int alauda_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1239,7 +1244,8 @@ static int alauda_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - alauda_usb_ids) + alauda_unusual_dev_list);
+ (id - alauda_usb_ids) + alauda_unusual_dev_list,
+ &alauda_host_template);
if (result)
return result;
@@ -1253,7 +1259,7 @@ static int alauda_probe(struct usb_interface *intf,
}
static struct usb_driver alauda_driver = {
- .name = "ums-alauda",
+ .name = DRV_NAME,
.probe = alauda_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1266,4 +1272,4 @@ static struct usb_driver alauda_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(alauda_driver);
+module_usb_stor_driver(alauda_driver, alauda_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/cypress_atacb.c b/kernel/drivers/usb/storage/cypress_atacb.c
index b3466d139..c80d3dec9 100644
--- a/kernel/drivers/usb/storage/cypress_atacb.c
+++ b/kernel/drivers/usb/storage/cypress_atacb.c
@@ -30,6 +30,8 @@
#include "scsiglue.h"
#include "debug.h"
+#define DRV_NAME "ums-cypress"
+
MODULE_DESCRIPTION("SAT support for Cypress USB/ATA bridges with ATACB");
MODULE_AUTHOR("Matthieu Castet <castet.matthieu@free.fr>");
MODULE_LICENSE("GPL");
@@ -241,6 +243,7 @@ end:
srb->cmd_len = 12;
}
+static struct scsi_host_template cypress_host_template;
static int cypress_probe(struct usb_interface *intf,
const struct usb_device_id *id)
@@ -250,7 +253,8 @@ static int cypress_probe(struct usb_interface *intf,
struct usb_device *device;
result = usb_stor_probe1(&us, intf, id,
- (id - cypress_usb_ids) + cypress_unusual_dev_list);
+ (id - cypress_usb_ids) + cypress_unusual_dev_list,
+ &cypress_host_template);
if (result)
return result;
@@ -273,7 +277,7 @@ static int cypress_probe(struct usb_interface *intf,
}
static struct usb_driver cypress_driver = {
- .name = "ums-cypress",
+ .name = DRV_NAME,
.probe = cypress_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -286,4 +290,4 @@ static struct usb_driver cypress_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(cypress_driver);
+module_usb_stor_driver(cypress_driver, cypress_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/datafab.c b/kernel/drivers/usb/storage/datafab.c
index 7b17c2169..aa4f51944 100644
--- a/kernel/drivers/usb/storage/datafab.c
+++ b/kernel/drivers/usb/storage/datafab.c
@@ -59,6 +59,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-datafab"
MODULE_DESCRIPTION("Driver for Datafab USB Compact Flash reader");
MODULE_AUTHOR("Jimmie Mayfield <mayfield+datafab@sackheads.org>");
@@ -721,6 +724,8 @@ static int datafab_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_FAILED;
}
+static struct scsi_host_template datafab_host_template;
+
static int datafab_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -728,7 +733,8 @@ static int datafab_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - datafab_usb_ids) + datafab_unusual_dev_list);
+ (id - datafab_usb_ids) + datafab_unusual_dev_list,
+ &datafab_host_template);
if (result)
return result;
@@ -742,7 +748,7 @@ static int datafab_probe(struct usb_interface *intf,
}
static struct usb_driver datafab_driver = {
- .name = "ums-datafab",
+ .name = DRV_NAME,
.probe = datafab_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -755,4 +761,4 @@ static struct usb_driver datafab_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(datafab_driver);
+module_usb_stor_driver(datafab_driver, datafab_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/ene_ub6250.c b/kernel/drivers/usb/storage/ene_ub6250.c
index 56f782bef..f3cf4cecd 100644
--- a/kernel/drivers/usb/storage/ene_ub6250.c
+++ b/kernel/drivers/usb/storage/ene_ub6250.c
@@ -28,6 +28,7 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
#define SD_INIT1_FIRMWARE "ene-ub6250/sd_init1.bin"
#define SD_INIT2_FIRMWARE "ene-ub6250/sd_init2.bin"
@@ -36,6 +37,8 @@
#define MSP_RW_FIRMWARE "ene-ub6250/msp_rdwr.bin"
#define MS_RW_FIRMWARE "ene-ub6250/ms_rdwr.bin"
+#define DRV_NAME "ums_eneub6250"
+
MODULE_DESCRIPTION("Driver for ENE UB6250 reader");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(SD_INIT1_FIRMWARE);
@@ -2307,6 +2310,7 @@ static int ene_transport(struct scsi_cmnd *srb, struct us_data *us)
return 0;
}
+static struct scsi_host_template ene_ub6250_host_template;
static int ene_ub6250_probe(struct usb_interface *intf,
const struct usb_device_id *id)
@@ -2316,7 +2320,8 @@ static int ene_ub6250_probe(struct usb_interface *intf,
struct us_data *us;
result = usb_stor_probe1(&us, intf, id,
- (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list);
+ (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list,
+ &ene_ub6250_host_template);
if (result)
return result;
@@ -2404,7 +2409,7 @@ static int ene_ub6250_reset_resume(struct usb_interface *iface)
#endif
static struct usb_driver ene_ub6250_driver = {
- .name = "ums_eneub6250",
+ .name = DRV_NAME,
.probe = ene_ub6250_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -2417,4 +2422,4 @@ static struct usb_driver ene_ub6250_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(ene_ub6250_driver);
+module_usb_stor_driver(ene_ub6250_driver, ene_ub6250_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/freecom.c b/kernel/drivers/usb/storage/freecom.c
index ef16068b7..3f2b08966 100644
--- a/kernel/drivers/usb/storage/freecom.c
+++ b/kernel/drivers/usb/storage/freecom.c
@@ -34,6 +34,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-freecom"
MODULE_DESCRIPTION("Driver for Freecom USB/IDE adaptor");
MODULE_AUTHOR("David Brown <usb-storage@davidb.org>");
@@ -523,6 +526,8 @@ static void pdump(struct us_data *us, void *ibuffer, int length)
}
#endif
+static struct scsi_host_template freecom_host_template;
+
static int freecom_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -530,7 +535,8 @@ static int freecom_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - freecom_usb_ids) + freecom_unusual_dev_list);
+ (id - freecom_usb_ids) + freecom_unusual_dev_list,
+ &freecom_host_template);
if (result)
return result;
@@ -544,7 +550,7 @@ static int freecom_probe(struct usb_interface *intf,
}
static struct usb_driver freecom_driver = {
- .name = "ums-freecom",
+ .name = DRV_NAME,
.probe = freecom_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -557,4 +563,4 @@ static struct usb_driver freecom_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(freecom_driver);
+module_usb_stor_driver(freecom_driver, freecom_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/isd200.c b/kernel/drivers/usb/storage/isd200.c
index 076178645..39afd7045 100644
--- a/kernel/drivers/usb/storage/isd200.c
+++ b/kernel/drivers/usb/storage/isd200.c
@@ -60,6 +60,8 @@
#include "debug.h"
#include "scsiglue.h"
+#define DRV_NAME "ums-isd200"
+
MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC");
MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>");
MODULE_LICENSE("GPL");
@@ -1454,30 +1456,26 @@ static void isd200_free_info_ptrs(void *info_)
*/
static int isd200_init_info(struct us_data *us)
{
- int retStatus = ISD200_GOOD;
struct isd200_info *info;
info = kzalloc(sizeof(struct isd200_info), GFP_KERNEL);
if (!info)
- retStatus = ISD200_ERROR;
- else {
- info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
- info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL);
- info->srb.sense_buffer =
- kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
- if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) {
- isd200_free_info_ptrs(info);
- kfree(info);
- retStatus = ISD200_ERROR;
- }
- }
+ return ISD200_ERROR;
- if (retStatus == ISD200_GOOD) {
- us->extra = info;
- us->extra_destructor = isd200_free_info_ptrs;
+ info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
+ info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL);
+ info->srb.sense_buffer = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
+
+ if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) {
+ isd200_free_info_ptrs(info);
+ kfree(info);
+ return ISD200_ERROR;
}
- return retStatus;
+ us->extra = info;
+ us->extra_destructor = isd200_free_info_ptrs;
+
+ return ISD200_GOOD;
}
/**************************************************************************
@@ -1537,6 +1535,8 @@ static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
isd200_srb_set_bufflen(srb, orig_bufflen);
}
+static struct scsi_host_template isd200_host_template;
+
static int isd200_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1544,7 +1544,8 @@ static int isd200_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - isd200_usb_ids) + isd200_unusual_dev_list);
+ (id - isd200_usb_ids) + isd200_unusual_dev_list,
+ &isd200_host_template);
if (result)
return result;
@@ -1556,7 +1557,7 @@ static int isd200_probe(struct usb_interface *intf,
}
static struct usb_driver isd200_driver = {
- .name = "ums-isd200",
+ .name = DRV_NAME,
.probe = isd200_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1569,4 +1570,4 @@ static struct usb_driver isd200_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(isd200_driver);
+module_usb_stor_driver(isd200_driver, isd200_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/jumpshot.c b/kernel/drivers/usb/storage/jumpshot.c
index 563078be6..ee613e258 100644
--- a/kernel/drivers/usb/storage/jumpshot.c
+++ b/kernel/drivers/usb/storage/jumpshot.c
@@ -56,7 +56,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+#define DRV_NAME "ums-jumpshot"
MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader");
MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>");
@@ -647,6 +649,8 @@ static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_FAILED;
}
+static struct scsi_host_template jumpshot_host_template;
+
static int jumpshot_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -654,7 +658,8 @@ static int jumpshot_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list);
+ (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list,
+ &jumpshot_host_template);
if (result)
return result;
@@ -668,7 +673,7 @@ static int jumpshot_probe(struct usb_interface *intf,
}
static struct usb_driver jumpshot_driver = {
- .name = "ums-jumpshot",
+ .name = DRV_NAME,
.probe = jumpshot_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -681,4 +686,4 @@ static struct usb_driver jumpshot_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(jumpshot_driver);
+module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/karma.c b/kernel/drivers/usb/storage/karma.c
index 94d16ee5e..ae201e694 100644
--- a/kernel/drivers/usb/storage/karma.c
+++ b/kernel/drivers/usb/storage/karma.c
@@ -28,6 +28,9 @@
#include "usb.h"
#include "transport.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-karma"
MODULE_DESCRIPTION("Driver for Rio Karma");
MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>, Keith Bennett <keith@mcs.st-and.ac.uk>");
@@ -200,6 +203,8 @@ out:
return ret;
}
+static struct scsi_host_template karma_host_template;
+
static int karma_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -207,7 +212,8 @@ static int karma_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - karma_usb_ids) + karma_unusual_dev_list);
+ (id - karma_usb_ids) + karma_unusual_dev_list,
+ &karma_host_template);
if (result)
return result;
@@ -220,7 +226,7 @@ static int karma_probe(struct usb_interface *intf,
}
static struct usb_driver karma_driver = {
- .name = "ums-karma",
+ .name = DRV_NAME,
.probe = karma_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -233,4 +239,4 @@ static struct usb_driver karma_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(karma_driver);
+module_usb_stor_driver(karma_driver, karma_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/onetouch.c b/kernel/drivers/usb/storage/onetouch.c
index 74e2aa23b..acc3d03d8 100644
--- a/kernel/drivers/usb/storage/onetouch.c
+++ b/kernel/drivers/usb/storage/onetouch.c
@@ -35,6 +35,9 @@
#include <linux/usb/input.h>
#include "usb.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-onetouch"
MODULE_DESCRIPTION("Maxtor USB OneTouch hard drive button driver");
MODULE_AUTHOR("Nick Sillik <n.sillik@temple.edu>");
@@ -283,6 +286,8 @@ static void onetouch_release_input(void *onetouch_)
}
}
+static struct scsi_host_template onetouch_host_template;
+
static int onetouch_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -290,7 +295,8 @@ static int onetouch_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - onetouch_usb_ids) + onetouch_unusual_dev_list);
+ (id - onetouch_usb_ids) + onetouch_unusual_dev_list,
+ &onetouch_host_template);
if (result)
return result;
@@ -301,7 +307,7 @@ static int onetouch_probe(struct usb_interface *intf,
}
static struct usb_driver onetouch_driver = {
- .name = "ums-onetouch",
+ .name = DRV_NAME,
.probe = onetouch_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -314,4 +320,4 @@ static struct usb_driver onetouch_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(onetouch_driver);
+module_usb_stor_driver(onetouch_driver, onetouch_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/realtek_cr.c b/kernel/drivers/usb/storage/realtek_cr.c
index 27e4a580d..20433563a 100644
--- a/kernel/drivers/usb/storage/realtek_cr.c
+++ b/kernel/drivers/usb/storage/realtek_cr.c
@@ -39,6 +39,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-realtek"
MODULE_DESCRIPTION("Driver for Realtek USB Card Reader");
MODULE_AUTHOR("wwang <wei_wang@realsil.com.cn>");
@@ -1034,6 +1037,8 @@ INIT_FAIL:
return -EIO;
}
+static struct scsi_host_template realtek_cr_host_template;
+
static int realtek_cr_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1044,7 +1049,8 @@ static int realtek_cr_probe(struct usb_interface *intf,
result = usb_stor_probe1(&us, intf, id,
(id - realtek_cr_ids) +
- realtek_cr_unusual_dev_list);
+ realtek_cr_unusual_dev_list,
+ &realtek_cr_host_template);
if (result)
return result;
@@ -1054,7 +1060,7 @@ static int realtek_cr_probe(struct usb_interface *intf,
}
static struct usb_driver realtek_cr_driver = {
- .name = "ums-realtek",
+ .name = DRV_NAME,
.probe = realtek_cr_probe,
.disconnect = usb_stor_disconnect,
/* .suspend = usb_stor_suspend, */
@@ -1070,4 +1076,4 @@ static struct usb_driver realtek_cr_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(realtek_cr_driver);
+module_usb_stor_driver(realtek_cr_driver, realtek_cr_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/scsiglue.c b/kernel/drivers/usb/storage/scsiglue.c
index 0e400f382..dba51362d 100644
--- a/kernel/drivers/usb/storage/scsiglue.c
+++ b/kernel/drivers/usb/storage/scsiglue.c
@@ -456,17 +456,13 @@ static int write_info(struct Scsi_Host *host, char *buffer, int length)
return length;
}
-/* we use this macro to help us write into the buffer */
-#undef SPRINTF
-#define SPRINTF(args...) seq_printf(m, ## args)
-
static int show_info (struct seq_file *m, struct Scsi_Host *host)
{
struct us_data *us = host_to_us(host);
const char *string;
/* print the controller name */
- SPRINTF(" Host scsi%d: usb-storage\n", host->host_no);
+ seq_printf(m, " Host scsi%d: usb-storage\n", host->host_no);
/* print product, vendor, and serial number strings */
if (us->pusb_dev->manufacturer)
@@ -475,26 +471,26 @@ static int show_info (struct seq_file *m, struct Scsi_Host *host)
string = us->unusual_dev->vendorName;
else
string = "Unknown";
- SPRINTF(" Vendor: %s\n", string);
+ seq_printf(m, " Vendor: %s\n", string);
if (us->pusb_dev->product)
string = us->pusb_dev->product;
else if (us->unusual_dev->productName)
string = us->unusual_dev->productName;
else
string = "Unknown";
- SPRINTF(" Product: %s\n", string);
+ seq_printf(m, " Product: %s\n", string);
if (us->pusb_dev->serial)
string = us->pusb_dev->serial;
else
string = "None";
- SPRINTF("Serial Number: %s\n", string);
+ seq_printf(m, "Serial Number: %s\n", string);
/* show the protocol and transport */
- SPRINTF(" Protocol: %s\n", us->protocol_name);
- SPRINTF(" Transport: %s\n", us->transport_name);
+ seq_printf(m, " Protocol: %s\n", us->protocol_name);
+ seq_printf(m, " Transport: %s\n", us->transport_name);
/* show the device flags */
- SPRINTF(" Quirks:");
+ seq_printf(m, " Quirks:");
#define US_FLAG(name, value) \
if (us->fflags & value) seq_printf(m, " " #name);
@@ -540,7 +536,7 @@ static struct device_attribute *sysfs_device_attr_list[] = {
* this defines our host template, with which we'll allocate hosts
*/
-struct scsi_host_template usb_stor_host_template = {
+static const struct scsi_host_template usb_stor_host_template = {
/* basic userland interface stuff */
.name = "usb-storage",
.proc_name = "usb-storage",
@@ -558,7 +554,6 @@ struct scsi_host_template usb_stor_host_template = {
/* queue commands only, only one command per LUN */
.can_queue = 1,
- .cmd_per_lun = 1,
/* unknown initiator id */
.this_id = -1,
@@ -592,6 +587,16 @@ struct scsi_host_template usb_stor_host_template = {
.module = THIS_MODULE
};
+void usb_stor_host_template_init(struct scsi_host_template *sht,
+ const char *name, struct module *owner)
+{
+ *sht = usb_stor_host_template;
+ sht->name = name;
+ sht->proc_name = name;
+ sht->module = owner;
+}
+EXPORT_SYMBOL_GPL(usb_stor_host_template_init);
+
/* To Report "Illegal Request: Invalid Field in CDB */
unsigned char usb_stor_sense_invalidCDB[18] = {
[0] = 0x70, /* current error */
diff --git a/kernel/drivers/usb/storage/scsiglue.h b/kernel/drivers/usb/storage/scsiglue.h
index ffa1cca93..5494d8760 100644
--- a/kernel/drivers/usb/storage/scsiglue.h
+++ b/kernel/drivers/usb/storage/scsiglue.h
@@ -41,8 +41,9 @@
extern void usb_stor_report_device_reset(struct us_data *us);
extern void usb_stor_report_bus_reset(struct us_data *us);
+extern void usb_stor_host_template_init(struct scsi_host_template *sht,
+ const char *name, struct module *owner);
extern unsigned char usb_stor_sense_invalidCDB[18];
-extern struct scsi_host_template usb_stor_host_template;
#endif
diff --git a/kernel/drivers/usb/storage/sddr09.c b/kernel/drivers/usb/storage/sddr09.c
index 3847053d7..b74603689 100644
--- a/kernel/drivers/usb/storage/sddr09.c
+++ b/kernel/drivers/usb/storage/sddr09.c
@@ -52,6 +52,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-sddr09"
MODULE_DESCRIPTION("Driver for SanDisk SDDR-09 SmartMedia reader");
MODULE_AUTHOR("Andries Brouwer <aeb@cwi.nl>, Robert Baruch <autophile@starband.net>");
@@ -1738,6 +1741,8 @@ usb_stor_sddr09_init(struct us_data *us) {
return sddr09_common_init(us);
}
+static struct scsi_host_template sddr09_host_template;
+
static int sddr09_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1745,7 +1750,8 @@ static int sddr09_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - sddr09_usb_ids) + sddr09_unusual_dev_list);
+ (id - sddr09_usb_ids) + sddr09_unusual_dev_list,
+ &sddr09_host_template);
if (result)
return result;
@@ -1766,7 +1772,7 @@ static int sddr09_probe(struct usb_interface *intf,
}
static struct usb_driver sddr09_driver = {
- .name = "ums-sddr09",
+ .name = DRV_NAME,
.probe = sddr09_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1779,4 +1785,4 @@ static struct usb_driver sddr09_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(sddr09_driver);
+module_usb_stor_driver(sddr09_driver, sddr09_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/sddr55.c b/kernel/drivers/usb/storage/sddr55.c
index aacedef96..e5e0a25ec 100644
--- a/kernel/drivers/usb/storage/sddr55.c
+++ b/kernel/drivers/usb/storage/sddr55.c
@@ -34,6 +34,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-sddr55"
MODULE_DESCRIPTION("Driver for SanDisk SDDR-55 SmartMedia reader");
MODULE_AUTHOR("Simon Munton");
@@ -968,6 +971,7 @@ static int sddr55_transport(struct scsi_cmnd *srb, struct us_data *us)
return USB_STOR_TRANSPORT_FAILED; // FIXME: sense buffer?
}
+static struct scsi_host_template sddr55_host_template;
static int sddr55_probe(struct usb_interface *intf,
const struct usb_device_id *id)
@@ -976,7 +980,8 @@ static int sddr55_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - sddr55_usb_ids) + sddr55_unusual_dev_list);
+ (id - sddr55_usb_ids) + sddr55_unusual_dev_list,
+ &sddr55_host_template);
if (result)
return result;
@@ -990,7 +995,7 @@ static int sddr55_probe(struct usb_interface *intf,
}
static struct usb_driver sddr55_driver = {
- .name = "ums-sddr55",
+ .name = DRV_NAME,
.probe = sddr55_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1003,4 +1008,4 @@ static struct usb_driver sddr55_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(sddr55_driver);
+module_usb_stor_driver(sddr55_driver, sddr55_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/shuttle_usbat.c b/kernel/drivers/usb/storage/shuttle_usbat.c
index 008d805c3..a3ec86b91 100644
--- a/kernel/drivers/usb/storage/shuttle_usbat.c
+++ b/kernel/drivers/usb/storage/shuttle_usbat.c
@@ -53,6 +53,9 @@
#include "transport.h"
#include "protocol.h"
#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-usbat"
MODULE_DESCRIPTION("Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable");
MODULE_AUTHOR("Daniel Drake <dsd@gentoo.org>, Robert Baruch <autophile@starband.net>");
@@ -1834,6 +1837,8 @@ static int init_usbat_flash(struct us_data *us)
return init_usbat(us, USBAT_DEV_FLASH);
}
+static struct scsi_host_template usbat_host_template;
+
static int usbat_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1841,7 +1846,8 @@ static int usbat_probe(struct usb_interface *intf,
int result;
result = usb_stor_probe1(&us, intf, id,
- (id - usbat_usb_ids) + usbat_unusual_dev_list);
+ (id - usbat_usb_ids) + usbat_unusual_dev_list,
+ &usbat_host_template);
if (result)
return result;
@@ -1858,7 +1864,7 @@ static int usbat_probe(struct usb_interface *intf,
}
static struct usb_driver usbat_driver = {
- .name = "ums-usbat",
+ .name = DRV_NAME,
.probe = usbat_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1871,4 +1877,4 @@ static struct usb_driver usbat_driver = {
.no_dynamic_id = 1,
};
-module_usb_driver(usbat_driver);
+module_usb_stor_driver(usbat_driver, usbat_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/transport.c b/kernel/drivers/usb/storage/transport.c
index 540add24a..5e67f63b2 100644
--- a/kernel/drivers/usb/storage/transport.c
+++ b/kernel/drivers/usb/storage/transport.c
@@ -1111,7 +1111,7 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us)
* command phase and the data phase. Some devices need a little
* more than that, probably because of clock rate inaccuracies. */
if (unlikely(us->fflags & US_FL_GO_SLOW))
- udelay(125);
+ usleep_range(125, 150);
if (transfer_length) {
unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ?
diff --git a/kernel/drivers/usb/storage/uas.c b/kernel/drivers/usb/storage/uas.c
index 6d3122afe..5c66d3f7a 100644
--- a/kernel/drivers/usb/storage/uas.c
+++ b/kernel/drivers/usb/storage/uas.c
@@ -257,17 +257,16 @@ static void uas_stat_cmplt(struct urb *urb)
struct uas_cmd_info *cmdinfo;
unsigned long flags;
unsigned int idx;
+ int status = urb->status;
spin_lock_irqsave(&devinfo->lock, flags);
if (devinfo->resetting)
goto out;
- if (urb->status) {
- if (urb->status != -ENOENT && urb->status != -ECONNRESET) {
- dev_err(&urb->dev->dev, "stat urb: status %d\n",
- urb->status);
- }
+ if (status) {
+ if (status != -ENOENT && status != -ECONNRESET && status != -ESHUTDOWN)
+ dev_err(&urb->dev->dev, "stat urb: status %d\n", status);
goto out;
}
@@ -348,6 +347,7 @@ static void uas_data_cmplt(struct urb *urb)
struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;
struct scsi_data_buffer *sdb = NULL;
unsigned long flags;
+ int status = urb->status;
spin_lock_irqsave(&devinfo->lock, flags);
@@ -374,9 +374,9 @@ static void uas_data_cmplt(struct urb *urb)
goto out;
}
- if (urb->status) {
- if (urb->status != -ENOENT && urb->status != -ECONNRESET)
- uas_log_cmd_state(cmnd, "data cmplt err", urb->status);
+ if (status) {
+ if (status != -ENOENT && status != -ECONNRESET && status != -ESHUTDOWN)
+ uas_log_cmd_state(cmnd, "data cmplt err", status);
/* error: no data transfered */
sdb->resid = sdb->length;
} else {
@@ -796,6 +796,10 @@ static int uas_slave_configure(struct scsi_device *sdev)
if (devinfo->flags & US_FL_NO_REPORT_OPCODES)
sdev->no_report_opcodes = 1;
+ /* A few buggy USB-ATA bridges don't understand FUA */
+ if (devinfo->flags & US_FL_BROKEN_FUA)
+ sdev->broken_fua = 1;
+
scsi_change_queue_depth(sdev, devinfo->qdepth - 2);
return 0;
}
@@ -811,9 +815,7 @@ static struct scsi_host_template uas_host_template = {
.can_queue = 65536, /* Is there a limit on the _host_ ? */
.this_id = -1,
.sg_tablesize = SG_NONE,
- .cmd_per_lun = 1, /* until we override it */
.skip_settle_delay = 1,
- .use_blk_tags = 1,
};
#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
@@ -930,10 +932,6 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (result)
goto set_alt0;
- result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 2);
- if (result)
- goto free_streams;
-
usb_set_intfdata(intf, shost);
result = scsi_add_host(shost, &intf->dev);
if (result)
diff --git a/kernel/drivers/usb/storage/unusual_devs.h b/kernel/drivers/usb/storage/unusual_devs.h
index 87898ca2e..7ffe42090 100644
--- a/kernel/drivers/usb/storage/unusual_devs.h
+++ b/kernel/drivers/usb/storage/unusual_devs.h
@@ -1987,7 +1987,7 @@ UNUSUAL_DEV( 0x14cd, 0x6600, 0x0201, 0x0201,
US_FL_IGNORE_RESIDUE ),
/* Reported by Michael Büsch <m@bues.ch> */
-UNUSUAL_DEV( 0x152d, 0x0567, 0x0114, 0x0114,
+UNUSUAL_DEV( 0x152d, 0x0567, 0x0114, 0x0116,
"JMicron",
"USB to ATA/ATAPI Bridge",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
@@ -2086,6 +2086,17 @@ UNUSUAL_DEV( 0x1b1c, 0x1ab5, 0x0200, 0x0200,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_INITIAL_READ10 ),
+/* Reported by Hans de Goede <hdegoede@redhat.com>
+ * These are mini projectors using USB for both power and video data transport
+ * The usb-storage interface is a virtual windows driver CD, which the gm12u320
+ * driver automatically converts into framebuffer & kms dri device nodes.
+ */
+UNUSUAL_DEV( 0x1de1, 0xc102, 0x0000, 0xffff,
+ "Grain-media Technology Corp.",
+ "USB3.0 Device GM12U320",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_IGNORE_DEVICE ),
+
/* Patch by Richard Schütz <r.schtz@t-online.de>
* This external hard drive enclosure uses a JMicron chip which
* needs the US_FL_IGNORE_RESIDUE flag to work properly. */
diff --git a/kernel/drivers/usb/storage/unusual_uas.h b/kernel/drivers/usb/storage/unusual_uas.h
index c85ea5300..ccc113e83 100644
--- a/kernel/drivers/usb/storage/unusual_uas.h
+++ b/kernel/drivers/usb/storage/unusual_uas.h
@@ -132,7 +132,7 @@ UNUSUAL_DEV(0x152d, 0x0567, 0x0000, 0x9999,
"JMicron",
"JMS567",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
- US_FL_NO_REPORT_OPCODES),
+ US_FL_BROKEN_FUA | US_FL_NO_REPORT_OPCODES),
/* Reported-by: Hans de Goede <hdegoede@redhat.com> */
UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999,
diff --git a/kernel/drivers/usb/storage/usb.c b/kernel/drivers/usb/storage/usb.c
index 6c10c888f..43576ed31 100644
--- a/kernel/drivers/usb/storage/usb.c
+++ b/kernel/drivers/usb/storage/usb.c
@@ -76,6 +76,8 @@
#include "uas-detect.h"
#endif
+#define DRV_NAME "usb-storage"
+
/* Some informational data */
MODULE_AUTHOR("Matthew Dharm <mdharm-usb@one-eyed-alien.net>");
MODULE_DESCRIPTION("USB Mass Storage driver for Linux");
@@ -924,7 +926,8 @@ static unsigned int usb_stor_sg_tablesize(struct usb_interface *intf)
int usb_stor_probe1(struct us_data **pus,
struct usb_interface *intf,
const struct usb_device_id *id,
- struct us_unusual_dev *unusual_dev)
+ struct us_unusual_dev *unusual_dev,
+ struct scsi_host_template *sht)
{
struct Scsi_Host *host;
struct us_data *us;
@@ -936,7 +939,7 @@ int usb_stor_probe1(struct us_data **pus,
* Ask the SCSI layer to allocate a host structure, with extra
* space at the end for our private us_data structure.
*/
- host = scsi_host_alloc(&usb_stor_host_template, sizeof(*us));
+ host = scsi_host_alloc(sht, sizeof(*us));
if (!host) {
dev_warn(&intf->dev, "Unable to allocate the scsi host\n");
return -ENOMEM;
@@ -1073,6 +1076,8 @@ void usb_stor_disconnect(struct usb_interface *intf)
}
EXPORT_SYMBOL_GPL(usb_stor_disconnect);
+static struct scsi_host_template usb_stor_host_template;
+
/* The main probe routine for standard devices */
static int storage_probe(struct usb_interface *intf,
const struct usb_device_id *id)
@@ -1113,7 +1118,8 @@ static int storage_probe(struct usb_interface *intf,
id->idVendor, id->idProduct);
}
- result = usb_stor_probe1(&us, intf, id, unusual_dev);
+ result = usb_stor_probe1(&us, intf, id, unusual_dev,
+ &usb_stor_host_template);
if (result)
return result;
@@ -1124,7 +1130,7 @@ static int storage_probe(struct usb_interface *intf,
}
static struct usb_driver usb_storage_driver = {
- .name = "usb-storage",
+ .name = DRV_NAME,
.probe = storage_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
@@ -1137,4 +1143,4 @@ static struct usb_driver usb_storage_driver = {
.soft_unbind = 1,
};
-module_usb_driver(usb_storage_driver);
+module_usb_stor_driver(usb_storage_driver, usb_stor_host_template, DRV_NAME);
diff --git a/kernel/drivers/usb/storage/usb.h b/kernel/drivers/usb/storage/usb.h
index 307e339a9..da0ad3241 100644
--- a/kernel/drivers/usb/storage/usb.h
+++ b/kernel/drivers/usb/storage/usb.h
@@ -197,11 +197,25 @@ extern int usb_stor_post_reset(struct usb_interface *iface);
extern int usb_stor_probe1(struct us_data **pus,
struct usb_interface *intf,
const struct usb_device_id *id,
- struct us_unusual_dev *unusual_dev);
+ struct us_unusual_dev *unusual_dev,
+ struct scsi_host_template *sht);
extern int usb_stor_probe2(struct us_data *us);
extern void usb_stor_disconnect(struct usb_interface *intf);
extern void usb_stor_adjust_quirks(struct usb_device *dev,
unsigned long *fflags);
+#define module_usb_stor_driver(__driver, __sht, __name) \
+static int __init __driver##_init(void) \
+{ \
+ usb_stor_host_template_init(&(__sht), __name, THIS_MODULE); \
+ return usb_register(&(__driver)); \
+} \
+module_init(__driver##_init); \
+static void __exit __driver##_exit(void) \
+{ \
+ usb_deregister(&(__driver)); \
+} \
+module_exit(__driver##_exit)
+
#endif
diff --git a/kernel/drivers/usb/usbip/vhci_hcd.c b/kernel/drivers/usb/usbip/vhci_hcd.c
index e9ef1eccd..7fbe19d52 100644
--- a/kernel/drivers/usb/usbip/vhci_hcd.c
+++ b/kernel/drivers/usb/usbip/vhci_hcd.c
@@ -218,7 +218,7 @@ static inline void hub_descriptor(struct usb_hub_descriptor *desc)
memset(desc, 0, sizeof(*desc));
desc->bDescriptorType = USB_DT_HUB;
desc->bDescLength = 9;
- desc->wHubCharacteristics = __constant_cpu_to_le16(
+ desc->wHubCharacteristics = cpu_to_le16(
HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
desc->bNbrPorts = VHCI_NPORTS;
desc->u.hs.DeviceRemovable[0] = 0xff;
@@ -565,7 +565,9 @@ no_need_xmit:
usb_hcd_unlink_urb_from_ep(hcd, urb);
no_need_unlink:
spin_unlock(&the_controller->lock);
- usb_hcd_giveback_urb(vhci_to_hcd(the_controller), urb, urb->status);
+ if (!ret)
+ usb_hcd_giveback_urb(vhci_to_hcd(the_controller),
+ urb, urb->status);
return ret;
}
@@ -629,7 +631,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
/* URB was never linked! or will be soon given back by
* vhci_rx. */
spin_unlock(&the_controller->lock);
- return 0;
+ return -EIDRM;
}
{