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 | |
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 void usb_wwan_port_remove(struct usb_serial_port *port); |
14 | extern unsigned 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_write(struct tty_struct *tty, struct usb_serial_port *port, |
19 | const unsigned char *buf, int count); |
20 | extern unsigned int usb_wwan_chars_in_buffer(struct tty_struct *tty); |
21 | #ifdef CONFIG_PM |
22 | extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message); |
23 | extern int usb_wwan_resume(struct usb_serial *serial); |
24 | #endif |
25 | |
26 | /* per port private data */ |
27 | |
28 | #define N_IN_URB 4 |
29 | #define N_OUT_URB 4 |
30 | #define IN_BUFLEN 4096 |
31 | #define OUT_BUFLEN 4096 |
32 | |
33 | struct usb_wwan_intf_private { |
34 | spinlock_t susp_lock; |
35 | unsigned int suspended:1; |
36 | unsigned int use_send_setup:1; |
37 | unsigned int use_zlp:1; |
38 | int in_flight; |
39 | unsigned int open_ports; |
40 | void *private; |
41 | }; |
42 | |
43 | struct usb_wwan_port_private { |
44 | /* Input endpoints and buffer for this port */ |
45 | struct urb *in_urbs[N_IN_URB]; |
46 | u8 *in_buffer[N_IN_URB]; |
47 | /* Output endpoints and buffer for this port */ |
48 | struct urb *out_urbs[N_OUT_URB]; |
49 | u8 *out_buffer[N_OUT_URB]; |
50 | unsigned long out_busy; /* Bit vector of URBs in use */ |
51 | struct usb_anchor delayed; |
52 | |
53 | /* Settings for the port */ |
54 | int rts_state; /* Handshaking pins (outputs) */ |
55 | int dtr_state; |
56 | int cts_state; /* Handshaking pins (inputs) */ |
57 | int dsr_state; |
58 | int dcd_state; |
59 | int ri_state; |
60 | |
61 | unsigned long tx_start_time[N_OUT_URB]; |
62 | }; |
63 | |
64 | #endif /* __LINUX_USB_USB_WWAN */ |
65 | |