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 void usb_wwan_port_remove(struct usb_serial_port *port);
14extern unsigned 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_write(struct tty_struct *tty, struct usb_serial_port *port,
19			  const unsigned char *buf, int count);
20extern unsigned int usb_wwan_chars_in_buffer(struct tty_struct *tty);
21#ifdef CONFIG_PM
22extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
23extern 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
33struct 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
43struct 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 */

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