usb-wwan.h

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/*
 * 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_port_probe(struct usb_serial_port *port);
extern int usb_wwan_port_remove(struct usb_serial_port *port);
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);
extern int usb_wwan_tiocmset(struct tty_struct *tty,
                 unsigned int set, unsigned int clear);
extern int usb_wwan_ioctl(struct tty_struct *tty,
              unsigned int cmd, unsigned long arg);
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 */