From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/usb/class/cdc-acm.h | 136 +++++++++++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 kernel/drivers/usb/class/cdc-acm.h (limited to 'kernel/drivers/usb/class/cdc-acm.h') diff --git a/kernel/drivers/usb/class/cdc-acm.h b/kernel/drivers/usb/class/cdc-acm.h new file mode 100644 index 000000000..b3b6c9db6 --- /dev/null +++ b/kernel/drivers/usb/class/cdc-acm.h @@ -0,0 +1,136 @@ +/* + * + * Includes for cdc-acm.c + * + * Mainly take from usbnet's cdc-ether part + * + */ + +/* + * CMSPAR, some architectures can't have space and mark parity. + */ + +#ifndef CMSPAR +#define CMSPAR 0 +#endif + +/* + * Major and minor numbers. + */ + +#define ACM_TTY_MAJOR 166 +#define ACM_TTY_MINORS 32 + +/* + * Requests. + */ + +#define USB_RT_ACM (USB_TYPE_CLASS | USB_RECIP_INTERFACE) + +/* + * Output control lines. + */ + +#define ACM_CTRL_DTR 0x01 +#define ACM_CTRL_RTS 0x02 + +/* + * Input control lines and line errors. + */ + +#define ACM_CTRL_DCD 0x01 +#define ACM_CTRL_DSR 0x02 +#define ACM_CTRL_BRK 0x04 +#define ACM_CTRL_RI 0x08 + +#define ACM_CTRL_FRAMING 0x10 +#define ACM_CTRL_PARITY 0x20 +#define ACM_CTRL_OVERRUN 0x40 + +/* + * Internal driver structures. + */ + +/* + * The only reason to have several buffers is to accommodate assumptions + * in line disciplines. They ask for empty space amount, receive our URB size, + * and proceed to issue several 1-character writes, assuming they will fit. + * The very first write takes a complete URB. Fortunately, this only happens + * when processing onlcr, so we only need 2 buffers. These values must be + * powers of 2. + */ +#define ACM_NW 16 +#define ACM_NR 16 + +struct acm_wb { + unsigned char *buf; + dma_addr_t dmah; + int len; + int use; + struct urb *urb; + struct acm *instance; +}; + +struct acm_rb { + int size; + unsigned char *base; + dma_addr_t dma; + int index; + struct acm *instance; +}; + +struct acm { + struct usb_device *dev; /* the corresponding usb device */ + struct usb_interface *control; /* control interface */ + struct usb_interface *data; /* data interface */ + struct tty_port port; /* our tty port data */ + struct urb *ctrlurb; /* urbs */ + u8 *ctrl_buffer; /* buffers of urbs */ + dma_addr_t ctrl_dma; /* dma handles of buffers */ + u8 *country_codes; /* country codes from device */ + unsigned int country_code_size; /* size of this buffer */ + unsigned int country_rel_date; /* release date of version */ + struct acm_wb wb[ACM_NW]; + unsigned long read_urbs_free; + struct urb *read_urbs[ACM_NR]; + struct acm_rb read_buffers[ACM_NR]; + int rx_buflimit; + int rx_endpoint; + spinlock_t read_lock; + int write_used; /* number of non-empty write buffers */ + int transmitting; + spinlock_t write_lock; + struct mutex mutex; + bool disconnected; + struct usb_cdc_line_coding line; /* bits, stop, parity */ + struct work_struct work; /* work queue entry for line discipline waking up */ + unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ + unsigned int ctrlout; /* output control lines (DTR, RTS) */ + struct async_icount iocount; /* counters for control line changes */ + struct async_icount oldcount; /* for comparison of counter */ + wait_queue_head_t wioctl; /* for ioctl */ + unsigned int writesize; /* max packet size for the output bulk endpoint */ + unsigned int readsize,ctrlsize; /* buffer sizes for freeing */ + unsigned int minor; /* acm minor number */ + unsigned char clocal; /* termios CLOCAL */ + unsigned int ctrl_caps; /* control capabilities from the class specific header */ + unsigned int susp_count; /* number of suspended interfaces */ + unsigned int combined_interfaces:1; /* control and data collapsed */ + unsigned int is_int_ep:1; /* interrupt endpoints contrary to spec used */ + unsigned int throttled:1; /* actually throttled */ + unsigned int throttle_req:1; /* throttle requested */ + u8 bInterval; + struct usb_anchor delayed; /* writes queued for a device about to be woken */ + unsigned long quirks; +}; + +#define CDC_DATA_INTERFACE_TYPE 0x0a + +/* constants describing various quirks and errors */ +#define NO_UNION_NORMAL BIT(0) +#define SINGLE_RX_URB BIT(1) +#define NO_CAP_LINE BIT(2) +#define NO_DATA_INTERFACE BIT(4) +#define IGNORE_DEVICE BIT(5) +#define QUIRK_CONTROL_LINE_STATE BIT(6) +#define CLEAR_HALT_CONDITIONS BIT(7) -- cgit 1.2.3-korg