1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 20d456194SMatthew Garrett /* 30d456194SMatthew Garrett * Definitions for USB serial mobile broadband cards 40d456194SMatthew Garrett */ 50d456194SMatthew Garrett 60d456194SMatthew Garrett #ifndef __LINUX_USB_USB_WWAN 70d456194SMatthew Garrett #define __LINUX_USB_USB_WWAN 80d456194SMatthew Garrett 90d456194SMatthew Garrett extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on); 100d456194SMatthew Garrett extern int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port); 110d456194SMatthew Garrett extern void usb_wwan_close(struct usb_serial_port *port); 12b8f0e820SJohan Hovold extern int usb_wwan_port_probe(struct usb_serial_port *port); 13*c5d1448fSUwe Kleine-König extern void usb_wwan_port_remove(struct usb_serial_port *port); 140d456194SMatthew Garrett extern int usb_wwan_write_room(struct tty_struct *tty); 1560b33c13SAlan Cox extern int usb_wwan_tiocmget(struct tty_struct *tty); 1620b9d177SAlan Cox extern int usb_wwan_tiocmset(struct tty_struct *tty, 170d456194SMatthew Garrett unsigned int set, unsigned int clear); 1815cc7badSAl Viro extern int usb_wwan_get_serial_info(struct tty_struct *tty, 1915cc7badSAl Viro struct serial_struct *ss); 2015cc7badSAl Viro extern int usb_wwan_set_serial_info(struct tty_struct *tty, 2115cc7badSAl Viro struct serial_struct *ss); 220d456194SMatthew Garrett extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port, 230d456194SMatthew Garrett const unsigned char *buf, int count); 240d456194SMatthew Garrett extern int usb_wwan_chars_in_buffer(struct tty_struct *tty); 250d456194SMatthew Garrett #ifdef CONFIG_PM 260d456194SMatthew Garrett extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message); 270d456194SMatthew Garrett extern int usb_wwan_resume(struct usb_serial *serial); 280d456194SMatthew Garrett #endif 290d456194SMatthew Garrett 300d456194SMatthew Garrett /* per port private data */ 310d456194SMatthew Garrett 320d456194SMatthew Garrett #define N_IN_URB 4 330d456194SMatthew Garrett #define N_OUT_URB 4 340d456194SMatthew Garrett #define IN_BUFLEN 4096 350d456194SMatthew Garrett #define OUT_BUFLEN 4096 360d456194SMatthew Garrett 370d456194SMatthew Garrett struct usb_wwan_intf_private { 380d456194SMatthew Garrett spinlock_t susp_lock; 390d456194SMatthew Garrett unsigned int suspended:1; 40669e729fSDavid Ward unsigned int use_send_setup:1; 412438c3a1SDaniele Palmas unsigned int use_zlp:1; 420d456194SMatthew Garrett int in_flight; 43c1c01803SJohan Hovold unsigned int open_ports; 440d456194SMatthew Garrett void *private; 450d456194SMatthew Garrett }; 460d456194SMatthew Garrett 470d456194SMatthew Garrett struct usb_wwan_port_private { 480d456194SMatthew Garrett /* Input endpoints and buffer for this port */ 490d456194SMatthew Garrett struct urb *in_urbs[N_IN_URB]; 500d456194SMatthew Garrett u8 *in_buffer[N_IN_URB]; 510d456194SMatthew Garrett /* Output endpoints and buffer for this port */ 520d456194SMatthew Garrett struct urb *out_urbs[N_OUT_URB]; 530d456194SMatthew Garrett u8 *out_buffer[N_OUT_URB]; 540d456194SMatthew Garrett unsigned long out_busy; /* Bit vector of URBs in use */ 550d456194SMatthew Garrett struct usb_anchor delayed; 560d456194SMatthew Garrett 570d456194SMatthew Garrett /* Settings for the port */ 580d456194SMatthew Garrett int rts_state; /* Handshaking pins (outputs) */ 590d456194SMatthew Garrett int dtr_state; 600d456194SMatthew Garrett int cts_state; /* Handshaking pins (inputs) */ 610d456194SMatthew Garrett int dsr_state; 620d456194SMatthew Garrett int dcd_state; 630d456194SMatthew Garrett int ri_state; 640d456194SMatthew Garrett 650d456194SMatthew Garrett unsigned long tx_start_time[N_OUT_URB]; 660d456194SMatthew Garrett }; 670d456194SMatthew Garrett 680d456194SMatthew Garrett #endif /* __LINUX_USB_USB_WWAN */ 69