diff options
author | 2016-05-18 13:18:31 +0300 | |
---|---|---|
committer | 2016-05-18 13:42:15 +0300 | |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/roms/seabios/src/hw/usb-xhci.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/roms/seabios/src/hw/usb-xhci.c')
-rw-r--r-- | qemu/roms/seabios/src/hw/usb-xhci.c | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/qemu/roms/seabios/src/hw/usb-xhci.c b/qemu/roms/seabios/src/hw/usb-xhci.c index fd58334dc..654febaad 100644 --- a/qemu/roms/seabios/src/hw/usb-xhci.c +++ b/qemu/roms/seabios/src/hw/usb-xhci.c @@ -350,26 +350,41 @@ xhci_hub_reset(struct usbhub_s *hub, u32 port) { struct usb_xhci_s *xhci = container_of(hub->cntl, struct usb_xhci_s, usb); u32 portsc = readl(&xhci->pr[port].portsc); - int rc; + if (!(portsc & XHCI_PORTSC_CCS)) + // Device no longer connected?! + return -1; switch (xhci_get_field(portsc, XHCI_PORTSC_PLS)) { case PLS_U0: - rc = speed_from_xhci[xhci_get_field(portsc, XHCI_PORTSC_SPEED)]; + // A USB3 port - controller automatically performs reset break; case PLS_POLLING: + // A USB2 port - perform device reset xhci_print_port_state(3, __func__, port, portsc); - portsc |= XHCI_PORTSC_PR; - writel(&xhci->pr[port].portsc, portsc); - if (wait_bit(&xhci->pr[port].portsc, XHCI_PORTSC_PED, XHCI_PORTSC_PED, 100) != 0) - return -1; - portsc = readl(&xhci->pr[port].portsc); - rc = speed_from_xhci[xhci_get_field(portsc, XHCI_PORTSC_SPEED)]; + writel(&xhci->pr[port].portsc, portsc | XHCI_PORTSC_PR); break; default: - rc = -1; - break; + return -1; } + // Wait for device to complete reset and be enabled + u32 end = timer_calc(100); + for (;;) { + portsc = readl(&xhci->pr[port].portsc); + if (!(portsc & XHCI_PORTSC_CCS)) + // Device disconnected during reset + return -1; + if (portsc & XHCI_PORTSC_PED) + // Reset complete + break; + if (timer_check(end)) { + warn_timeout(); + return -1; + } + yield(); + } + + int rc = speed_from_xhci[xhci_get_field(portsc, XHCI_PORTSC_SPEED)]; xhci_print_port_state(1, "XHCI", port, portsc); return rc; } @@ -465,7 +480,7 @@ configure_xhci(void *data) xhci->evts->cs = 1; reg = readl(&xhci->caps->hcsparams2); - u32 spb = reg >> 27; + u32 spb = (reg >> 21 & 0x1f) << 5 | reg >> 27; if (spb) { dprintf(3, "%s: setup %d scratch pad buffers\n", __func__, spb); u64 *spba = memalign_high(64, sizeof(*spba) * spb); @@ -921,8 +936,14 @@ xhci_alloc_pipe(struct usbdevice_s *usbdev usb_desc2pipe(&pipe->pipe, usbdev, epdesc); pipe->epid = epid; pipe->reqs.cs = 1; - if (eptype == USB_ENDPOINT_XFER_INT) + if (eptype == USB_ENDPOINT_XFER_INT) { pipe->buf = malloc_high(pipe->pipe.maxpacket); + if (!pipe->buf) { + warn_noalloc(); + free(pipe); + return NULL; + } + } // Allocate input context and initialize endpoint info. struct xhci_inctx *in = xhci_alloc_inctx(usbdev, epid); @@ -988,6 +1009,7 @@ xhci_alloc_pipe(struct usbdevice_s *usbdev return &pipe->pipe; fail: + free(pipe->buf); free(pipe); free(in); return NULL; |