diff options
Diffstat (limited to 'drivers/usb/class/cdc-acm.h')
-rw-r--r-- | drivers/usb/class/cdc-acm.h | 82 |
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 @@ +/* + * + * 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. + */ + +struct acm { + struct usb_device *dev; /* the corresponding usb device */ + struct usb_interface *control; /* control interface */ + struct usb_interface *data; /* data interface */ + struct tty_struct *tty; /* the corresponding tty */ + struct urb *ctrlurb, *readurb, *writeurb; /* urbs */ + u8 *ctrl_buffer, *read_buffer, *write_buffer; /* buffers of urbs */ + dma_addr_t ctrl_dma, read_dma, write_dma; /* dma handles of buffers */ + struct usb_cdc_line_coding line; /* bits, stop, parity */ + struct work_struct work; /* work queue entry for line discipline waking up */ + struct tasklet_struct bh; /* rx processing */ + spinlock_t throttle_lock; /* synchronize throtteling and read callback */ + unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */ + unsigned int ctrlout; /* output control lines (DTR, RTS) */ + unsigned int writesize; /* max packet size for the output bulk endpoint */ + unsigned int readsize,ctrlsize; /* buffer sizes for freeing */ + unsigned int used; /* someone has this acm's device open */ + unsigned int minor; /* acm minor number */ + unsigned char throttle; /* throttled by tty layer */ + unsigned char clocal; /* termios CLOCAL */ + unsigned char ready_for_write; /* write urb can be used */ + unsigned char resubmit_to_unthrottle; /* throtteling has disabled the read urb */ + unsigned int ctrl_caps; /* control capabilities from the class specific header */ +}; + +#define CDC_DATA_INTERFACE_TYPE 0x0a + +/* constants describing various quirks and errors */ +#define NO_UNION_NORMAL 1 |