LXR linux/drivers/usb/serial/usb-wwan.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Definitions for USB serial mobile broadband cards
   4 */
   5
   6#ifndef __LINUX_USB_USB_WWAN
   7#define __LINUX_USB_USB_WWAN
   8
   9extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
  10extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
  11extern void usb_wwan_close(struct usb_serial_port *port);
  12extern int usb_wwan_port_probe(struct usb_serial_port *port);
  13extern int usb_wwan_port_remove(struct usb_serial_port *port);
  14extern int usb_wwan_write_room(struct tty_struct *tty);
  15extern int usb_wwan_tiocmget(struct tty_struct *tty);
  16extern int usb_wwan_tiocmset(struct tty_struct *tty,
  17                             unsigned int set, unsigned int clear);
  18extern int usb_wwan_get_serial_info(struct tty_struct *tty,
  19                           struct serial_struct *ss);
  20extern int usb_wwan_set_serial_info(struct tty_struct *tty,
  21                           struct serial_struct *ss);
  22extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
  23                          const unsigned char *buf, int count);
  24extern int usb_wwan_chars_in_buffer(struct tty_struct *tty);
  25#ifdef CONFIG_PM
  26extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
  27extern int usb_wwan_resume(struct usb_serial *serial);
  28#endif
  29
  30/* per port private data */
  31
  32#define N_IN_URB 4
  33#define N_OUT_URB 4
  34#define IN_BUFLEN 4096
  35#define OUT_BUFLEN 4096
  36
  37struct usb_wwan_intf_private {
  38        spinlock_t susp_lock;
  39        unsigned int suspended:1;
  40        unsigned int use_send_setup:1;
  41        int in_flight;
  42        unsigned int open_ports;
  43        void *private;
  44};
  45
  46struct usb_wwan_port_private {
  47        /* Input endpoints and buffer for this port */
  48        struct urb *in_urbs[N_IN_URB];
  49        u8 *in_buffer[N_IN_URB];
  50        /* Output endpoints and buffer for this port */
  51        struct urb *out_urbs[N_OUT_URB];
  52        u8 *out_buffer[N_OUT_URB];
  53        unsigned long out_busy; /* Bit vector of URBs in use */
  54        struct usb_anchor delayed;
  55
  56        /* Settings for the port */
  57        int rts_state;          /* Handshaking pins (outputs) */
  58        int dtr_state;
  59        int cts_state;          /* Handshaking pins (inputs) */
  60        int dsr_state;
  61        int dcd_state;
  62        int ri_state;
  63
  64        unsigned long tx_start_time[N_OUT_URB];
  65};
  66
  67#endif /* __LINUX_USB_USB_WWAN */
  68