110 static int rs_put_char(struct tty_struct *tty, unsigned char ch)  in rs_put_char()  argument
112 	struct serial_state *info = tty->driver_data;  in rs_put_char()
129 static void transmit_chars(struct tty_struct *tty, struct serial_state *info,  in transmit_chars()  argument
147 	if (info->xmit.head == info->xmit.tail || tty->stopped) {  in transmit_chars()
150 		       info->xmit.head, info->xmit.tail, tty->stopped);  in transmit_chars()
180 static void rs_flush_chars(struct tty_struct *tty)  in rs_flush_chars()  argument
182 	struct serial_state *info = tty->driver_data;  in rs_flush_chars()
184 	if (info->xmit.head == info->xmit.tail || tty->stopped ||  in rs_flush_chars()
188 	transmit_chars(tty, info, NULL);  in rs_flush_chars()
191 static int rs_write(struct tty_struct * tty,  in rs_write()  argument
194 	struct serial_state *info = tty->driver_data;  in rs_write()
221 			!tty->stopped)  in rs_write()
222 		transmit_chars(tty, info, NULL);  in rs_write()
227 static int rs_write_room(struct tty_struct *tty)  in rs_write_room()  argument
229 	struct serial_state *info = tty->driver_data;  in rs_write_room()
234 static int rs_chars_in_buffer(struct tty_struct *tty)  in rs_chars_in_buffer()  argument
236 	struct serial_state *info = tty->driver_data;  in rs_chars_in_buffer()
241 static void rs_flush_buffer(struct tty_struct *tty)  in rs_flush_buffer()  argument
243 	struct serial_state *info = tty->driver_data;  in rs_flush_buffer()
250 	tty_wakeup(tty);  in rs_flush_buffer()
257 static void rs_send_xchar(struct tty_struct *tty, char ch)  in rs_send_xchar()  argument
259 	struct serial_state *info = tty->driver_data;  in rs_send_xchar()
267 		transmit_chars(tty, info, NULL);  in rs_send_xchar()
279 static void rs_throttle(struct tty_struct * tty)  in rs_throttle()  argument
281 	if (I_IXOFF(tty))  in rs_throttle()
282 		rs_send_xchar(tty, STOP_CHAR(tty));  in rs_throttle()
287 static void rs_unthrottle(struct tty_struct * tty)  in rs_unthrottle()  argument
289 	struct serial_state *info = tty->driver_data;  in rs_unthrottle()
291 	if (I_IXOFF(tty)) {  in rs_unthrottle()
295 			rs_send_xchar(tty, START_CHAR(tty));  in rs_unthrottle()
300 static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)  in rs_ioctl()  argument
305 		if (tty_io_error(tty))  in rs_ioctl()
350 static void rs_close(struct tty_struct *tty, struct file * filp)  in rs_close()  argument
352 	struct serial_state *info = tty->driver_data;  in rs_close()
354 	tty_port_close(&info->port, tty, filp);  in rs_close()
357 static void rs_hangup(struct tty_struct *tty)  in rs_hangup()  argument
359 	struct serial_state *info = tty->driver_data;  in rs_hangup()
361 	rs_flush_buffer(tty);  in rs_hangup()
365 static int activate(struct tty_port *port, struct tty_struct *tty)  in activate()  argument
403 static int rs_open(struct tty_struct *tty, struct file * filp)  in rs_open()  argument
405 	struct serial_state *info = rs_table + tty->index;  in rs_open()
408 	tty->driver_data = info;  in rs_open()
420 	return tty_port_open(port, tty, filp);  in rs_open()