1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Definitions for USB serial mobile broadband cards
6 #ifndef __LINUX_USB_USB_WWAN
7 #define __LINUX_USB_USB_WWAN
9 extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
10 extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port);
11 extern void usb_wwan_close(struct usb_serial_port *port);
12 extern int usb_wwan_port_probe(struct usb_serial_port *port);
13 extern int usb_wwan_port_remove(struct usb_serial_port *port);
14 extern int usb_wwan_write_room(struct tty_struct *tty);
15 extern int usb_wwan_tiocmget(struct tty_struct *tty);
16 extern int usb_wwan_tiocmset(struct tty_struct *tty,
17 unsigned int set, unsigned int clear);
18 extern int usb_wwan_ioctl(struct tty_struct *tty,
19 unsigned int cmd, unsigned long arg);
20 extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
21 const unsigned char *buf, int count);
22 extern int usb_wwan_chars_in_buffer(struct tty_struct *tty);
24 extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
25 extern int usb_wwan_resume(struct usb_serial *serial);
28 /* per port private data */
32 #define IN_BUFLEN 4096
33 #define OUT_BUFLEN 4096
35 struct usb_wwan_intf_private {
37 unsigned int suspended:1;
38 unsigned int use_send_setup:1;
39 unsigned int use_zlp:1;
41 unsigned int open_ports;
45 struct usb_wwan_port_private {
46 /* Input endpoints and buffer for this port */
47 struct urb *in_urbs[N_IN_URB];
48 u8 *in_buffer[N_IN_URB];
49 /* Output endpoints and buffer for this port */
50 struct urb *out_urbs[N_OUT_URB];
51 u8 *out_buffer[N_OUT_URB];
52 unsigned long out_busy; /* Bit vector of URBs in use */
53 struct usb_anchor delayed;
55 /* Settings for the port */
56 int rts_state; /* Handshaking pins (outputs) */
58 int cts_state; /* Handshaking pins (inputs) */
63 unsigned long tx_start_time[N_OUT_URB];
66 #endif /* __LINUX_USB_USB_WWAN */