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/* 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 void usb_wwan_port_remove(struct usb_serial_port *port); extern unsigned 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_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); extern unsigned 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 */ |