diff options
| author | Matthew Garrett <mjg@redhat.com> | 2010-04-01 20:31:07 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 00:21:37 +0400 |
| commit | 0d4561947b8ddd5d944bdbbdc1ea1d6fd9a06041 (patch) | |
| tree | d75237e22ffac2db3be393bb8cd80c40a86befab /drivers/usb/serial/usb-wwan.h | |
| parent | a90309860b0935805d49e75499fb8dc59fea8e94 (diff) | |
| download | linux-0d4561947b8ddd5d944bdbbdc1ea1d6fd9a06041.tar.xz | |
usb serial: Add generic USB wwan support
The generic USB serial code is ill-suited for high-speed USB wwan devices,
resulting in the option driver. However, other non-option devices may also
gain similar benefits from not using the generic code. Factorise out the
non-option specific code from the option driver and make it available to
other users.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/usb-wwan.h')
| -rw-r--r-- | drivers/usb/serial/usb-wwan.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h new file mode 100644 index 000000000000..2be298a1305b --- /dev/null +++ b/drivers/usb/serial/usb-wwan.h @@ -0,0 +1,67 @@ +/* + * Definitions for USB serial mobile broadband cards + */ + +#ifndef __LINUX_USB_USB_WWAN +#define __LINUX_USB_USB_WWAN + +extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on); +extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port); +extern void usb_wwan_close(struct usb_serial_port *port); +extern int usb_wwan_startup(struct usb_serial *serial); +extern void usb_wwan_disconnect(struct usb_serial *serial); +extern void usb_wwan_release(struct usb_serial *serial); +extern int usb_wwan_write_room(struct tty_struct *tty); +extern void usb_wwan_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, + struct ktermios *old); +extern int usb_wwan_tiocmget(struct tty_struct *tty, struct file *file); +extern int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file, + unsigned int set, unsigned int clear); +extern int usb_wwan_send_setup(struct usb_serial_port *port); +extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port, + const unsigned char *buf, int count); +extern int usb_wwan_chars_in_buffer(struct tty_struct *tty); +#ifdef CONFIG_PM +extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message); +extern int usb_wwan_resume(struct usb_serial *serial); +#endif + +/* per port private data */ + +#define N_IN_URB 4 +#define N_OUT_URB 4 +#define IN_BUFLEN 4096 +#define OUT_BUFLEN 4096 + +struct usb_wwan_intf_private { + spinlock_t susp_lock; + unsigned int suspended:1; + int in_flight; + int (*send_setup) (struct usb_serial_port *port); + void *private; +}; + +struct usb_wwan_port_private { + /* Input endpoints and buffer for this port */ + struct urb *in_urbs[N_IN_URB]; + u8 *in_buffer[N_IN_URB]; + /* Output endpoints and buffer for this port */ + struct urb *out_urbs[N_OUT_URB]; + u8 *out_buffer[N_OUT_URB]; + unsigned long out_busy; /* Bit vector of URBs in use */ + int opened; + struct usb_anchor delayed; + + /* Settings for the port */ + int rts_state; /* Handshaking pins (outputs) */ + int dtr_state; + int cts_state; /* Handshaking pins (inputs) */ + int dsr_state; + int dcd_state; + int ri_state; + + unsigned long tx_start_time[N_OUT_URB]; +}; + +#endif /* __LINUX_USB_USB_WWAN */ |