usb/serial/mos7720.c

23 #include <linux/tty.h>
842 static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
945  *	this function is called by the tty driver when it wants to know how many
949 static unsigned int mos7720_chars_in_buffer(struct tty_struct *tty)
951 	struct usb_serial_port *port = tty->driver_data;
999 static int mos7720_break(struct tty_struct *tty, int break_state)
1001 	struct usb_serial_port *port = tty->driver_data;
1025  *	this function is called by the tty driver when it wants to know how many
1028 static unsigned int mos7720_write_room(struct tty_struct *tty)
1030 	struct usb_serial_port *port = tty->driver_data;
1046 static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port,
1117 static void mos7720_throttle(struct tty_struct *tty)
1119 	struct usb_serial_port *port = tty->driver_data;
1134 	if (I_IXOFF(tty)) {
1135 		unsigned char stop_char = STOP_CHAR(tty);
1136 		status = mos7720_write(tty, port, &stop_char, 1);
1142 	if (C_CRTSCTS(tty)) {
1149 static void mos7720_unthrottle(struct tty_struct *tty)
1151 	struct usb_serial_port *port = tty->driver_data;
1164 	if (I_IXOFF(tty)) {
1165 		unsigned char start_char = START_CHAR(tty);
1166 		status = mos7720_write(tty, port, &start_char, 1);
1172 	if (C_CRTSCTS(tty)) {
1358 static void change_port_settings(struct tty_struct *tty,
1387 	cflag = tty->termios.c_cflag;
1462 	baud = tty_get_baud_rate(tty);
1481 		tty_encode_baud_rate(tty, baud, baud);
1494  *	this function is called by the tty driver when it wants to change the
1497 static void mos7720_set_termios(struct tty_struct *tty,
1515 	change_port_settings(tty, mos7720_port, old_termios);
1534 static int get_lsr_info(struct tty_struct *tty,
1537 	struct usb_serial_port *port = tty->driver_data;
1543 	count = mos7720_chars_in_buffer(tty);
1557 static int mos7720_tiocmget(struct tty_struct *tty)
1559 	struct usb_serial_port *port = tty->driver_data;
1578 static int mos7720_tiocmset(struct tty_struct *tty,
1581 	struct usb_serial_port *port = tty->driver_data;
1608 static int mos7720_ioctl(struct tty_struct *tty,
1611 	struct usb_serial_port *port = tty->driver_data;
1621 		return get_lsr_info(tty, mos7720_port,