| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * 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 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_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; |
| unsigned int use_send_setup:1; |
| unsigned int use_zlp:1; |
| int in_flight; |
| unsigned int open_ports; |
| 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 */ |
| 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 */ |