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Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
-rw-r--r--drivers/usb/class/cdc-acm.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
new file mode 100644
index 000000000000..9009114e311b
--- /dev/null
+++ b/drivers/usb/class/cdc-acm.h
@@ -0,0 +1,82 @@
1/*
2 *
3 * Includes for cdc-acm.c
4 *
5 * Mainly take from usbnet's cdc-ether part
6 *
7 */
8
9/*
10 * CMSPAR, some architectures can't have space and mark parity.
11 */
12
13#ifndef CMSPAR
14#define CMSPAR 0
15#endif
16
17/*
18 * Major and minor numbers.
19 */
20
21#define ACM_TTY_MAJOR 166
22#define ACM_TTY_MINORS 32
23
24/*
25 * Requests.
26 */
27
28#define USB_RT_ACM (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
29
30/*
31 * Output control lines.
32 */
33
34#define ACM_CTRL_DTR 0x01
35#define ACM_CTRL_RTS 0x02
36
37/*
38 * Input control lines and line errors.
39 */
40
41#define ACM_CTRL_DCD 0x01
42#define ACM_CTRL_DSR 0x02
43#define ACM_CTRL_BRK 0x04
44#define ACM_CTRL_RI 0x08
45
46#define ACM_CTRL_FRAMING 0x10
47#define ACM_CTRL_PARITY 0x20
48#define ACM_CTRL_OVERRUN 0x40
49
50/*
51 * Internal driver structures.
52 */
53
54struct acm {
55 struct usb_device *dev; /* the corresponding usb device */
56 struct usb_interface *control; /* control interface */
57 struct usb_interface *data; /* data interface */
58 struct tty_struct *tty; /* the corresponding tty */
59 struct urb *ctrlurb, *readurb, *writeurb; /* urbs */
60 u8 *ctrl_buffer, *read_buffer, *write_buffer; /* buffers of urbs */
61 dma_addr_t ctrl_dma, read_dma, write_dma; /* dma handles of buffers */
62 struct usb_cdc_line_coding line; /* bits, stop, parity */
63 struct work_struct work; /* work queue entry for line discipline waking up */
64 struct tasklet_struct bh; /* rx processing */
65 spinlock_t throttle_lock; /* synchronize throtteling and read callback */
66 unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */
67 unsigned int ctrlout; /* output control lines (DTR, RTS) */
68 unsigned int writesize; /* max packet size for the output bulk endpoint */
69 unsigned int readsize,ctrlsize; /* buffer sizes for freeing */
70 unsigned int used; /* someone has this acm's device open */
71 unsigned int minor; /* acm minor number */
72 unsigned char throttle; /* throttled by tty layer */
73 unsigned char clocal; /* termios CLOCAL */
74 unsigned char ready_for_write; /* write urb can be used */
75 unsigned char resubmit_to_unthrottle; /* throtteling has disabled the read urb */
76 unsigned int ctrl_caps; /* control capabilities from the class specific header */
77};
78
79#define CDC_DATA_INTERFACE_TYPE 0x0a
80
81/* constants describing various quirks and errors */
82#define NO_UNION_NORMAL 1