48  tty->name, (info->tport.flags), serial_driver->refcount,info->count,tty->count,s)
122 static void change_speed(struct tty_struct *tty, struct serial_state *info,
124 static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
187 static void rs_stop(struct tty_struct *tty)  in rs_stop()  argument
189 	struct serial_state *info = tty->driver_data;  in rs_stop()
192 	if (serial_paranoia_check(info, tty->name, "rs_stop"))  in rs_stop()
207 static void rs_start(struct tty_struct *tty)  in rs_start()  argument
209 	struct serial_state *info = tty->driver_data;  in rs_start()
212 	if (serial_paranoia_check(info, tty->name, "rs_start"))  in rs_start()
316 	      do_SAK(info->tport.tty);  in receive_chars()
350 	    || info->tport.tty->stopped  in transmit_chars()
351 	    || info->tport.tty->hw_stopped) {  in transmit_chars()
366 		tty_wakeup(info->tport.tty);  in transmit_chars()
413 			if (port->tty)  in check_modem_status()
414 				tty_hangup(port->tty);  in check_modem_status()
418 		if (port->tty->hw_stopped) {  in check_modem_status()
423 				port->tty->hw_stopped = 0;  in check_modem_status()
430 				tty_wakeup(port->tty);  in check_modem_status()
438 				port->tty->hw_stopped = 1;  in check_modem_status()
471 	if (!info->tport.tty)  in ser_rx_int()
490 	  if (!info->tport.tty)  in ser_tx_int()
516 static int startup(struct tty_struct *tty, struct serial_state *info)  in startup()  argument
551 	      set_bit(TTY_IO_ERROR, &tty->flags);  in startup()
566 	if (C_BAUD(tty))  in startup()
570 	clear_bit(TTY_IO_ERROR, &tty->flags);  in startup()
576 	change_speed(tty, info, NULL);  in startup()
591 static void shutdown(struct tty_struct *tty, struct serial_state *info)  in shutdown()  argument
631 	if (C_HUPCL(tty))  in shutdown()
635 	set_bit(TTY_IO_ERROR, &tty->flags);  in shutdown()
646 static void change_speed(struct tty_struct *tty, struct serial_state *info,  in change_speed()  argument
655 	cflag = tty->termios.c_cflag;  in change_speed()
676 	baud = tty_get_baud_rate(tty);  in change_speed()
692 		tty->termios.c_cflag &= ~CBAUD;  in change_speed()
693 		tty->termios.c_cflag |= (old_termios->c_cflag & CBAUD);  in change_speed()
694 		baud = tty_get_baud_rate(tty);  in change_speed()
734 	if (I_INPCK(tty))  in change_speed()
736 	if (I_BRKINT(tty) || I_PARMRK(tty))  in change_speed()
743 	if (I_IGNPAR(tty))  in change_speed()
745 	if (I_IGNBRK(tty)) {  in change_speed()
751 		if (I_IGNPAR(tty))  in change_speed()
779 static int rs_put_char(struct tty_struct *tty, unsigned char ch)  in rs_put_char()  argument
784 	info = tty->driver_data;  in rs_put_char()
786 	if (serial_paranoia_check(info, tty->name, "rs_put_char"))  in rs_put_char()
806 static void rs_flush_chars(struct tty_struct *tty)  in rs_flush_chars()  argument
808 	struct serial_state *info = tty->driver_data;  in rs_flush_chars()
811 	if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))  in rs_flush_chars()
815 	    || tty->stopped  in rs_flush_chars()
816 	    || tty->hw_stopped  in rs_flush_chars()
830 static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count)  in rs_write()  argument
833 	struct serial_state *info = tty->driver_data;  in rs_write()
836 	if (serial_paranoia_check(info, tty->name, "rs_write"))  in rs_write()
862 	    && !tty->stopped  in rs_write()
863 	    && !tty->hw_stopped  in rs_write()
877 static int rs_write_room(struct tty_struct *tty)  in rs_write_room()  argument
879 	struct serial_state *info = tty->driver_data;  in rs_write_room()
881 	if (serial_paranoia_check(info, tty->name, "rs_write_room"))  in rs_write_room()
886 static int rs_chars_in_buffer(struct tty_struct *tty)  in rs_chars_in_buffer()  argument
888 	struct serial_state *info = tty->driver_data;  in rs_chars_in_buffer()
890 	if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer"))  in rs_chars_in_buffer()
895 static void rs_flush_buffer(struct tty_struct *tty)  in rs_flush_buffer()  argument
897 	struct serial_state *info = tty->driver_data;  in rs_flush_buffer()
900 	if (serial_paranoia_check(info, tty->name, "rs_flush_buffer"))  in rs_flush_buffer()
905 	tty_wakeup(tty);  in rs_flush_buffer()
912 static void rs_send_xchar(struct tty_struct *tty, char ch)  in rs_send_xchar()  argument
914 	struct serial_state *info = tty->driver_data;  in rs_send_xchar()
917 	if (serial_paranoia_check(info, tty->name, "rs_send_xchar"))  in rs_send_xchar()
947 static void rs_throttle(struct tty_struct * tty)  in rs_throttle()  argument
949 	struct serial_state *info = tty->driver_data;  in rs_throttle()
952 	printk("throttle %s ....\n", tty_name(tty));  in rs_throttle()
955 	if (serial_paranoia_check(info, tty->name, "rs_throttle"))  in rs_throttle()
958 	if (I_IXOFF(tty))  in rs_throttle()
959 		rs_send_xchar(tty, STOP_CHAR(tty));  in rs_throttle()
961 	if (C_CRTSCTS(tty))  in rs_throttle()
969 static void rs_unthrottle(struct tty_struct * tty)  in rs_unthrottle()  argument
971 	struct serial_state *info = tty->driver_data;  in rs_unthrottle()
974 	printk("unthrottle %s ....\n", tty_name(tty));  in rs_unthrottle()
977 	if (serial_paranoia_check(info, tty->name, "rs_unthrottle"))  in rs_unthrottle()
980 	if (I_IXOFF(tty)) {  in rs_unthrottle()
984 			rs_send_xchar(tty, START_CHAR(tty));  in rs_unthrottle()
986 	if (C_CRTSCTS(tty))  in rs_unthrottle()
999 static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss)  in get_serial_info()  argument
1001 	struct serial_state *state = tty->driver_data;  in get_serial_info()
1003 	tty_lock(tty);  in get_serial_info()
1004 	ss->line = tty->index;  in get_serial_info()
1012 	tty_unlock(tty);  in get_serial_info()
1016 static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)  in set_serial_info()  argument
1018 	struct serial_state *state = tty->driver_data;  in set_serial_info()
1023 	tty_lock(tty);  in set_serial_info()
1028 		tty_unlock(tty);  in set_serial_info()
1038 			tty_unlock(tty);  in set_serial_info()
1048 		tty_unlock(tty);  in set_serial_info()
1070 				dev_warn_ratelimited(tty->dev, "use of SPD flags is deprecated\n");  in set_serial_info()
1071 			change_speed(tty, state, NULL);  in set_serial_info()
1074 		retval = startup(tty, state);  in set_serial_info()
1075 	tty_unlock(tty);  in set_serial_info()
1106 static int rs_tiocmget(struct tty_struct *tty)  in rs_tiocmget()  argument
1108 	struct serial_state *info = tty->driver_data;  in rs_tiocmget()
1112 	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))  in rs_tiocmget()
1114 	if (tty_io_error(tty))  in rs_tiocmget()
1128 static int rs_tiocmset(struct tty_struct *tty, unsigned int set,  in rs_tiocmset()  argument
1131 	struct serial_state *info = tty->driver_data;  in rs_tiocmset()
1134 	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))  in rs_tiocmset()
1136 	if (tty_io_error(tty))  in rs_tiocmset()
1156 static int rs_break(struct tty_struct *tty, int break_state)  in rs_break()  argument
1158 	struct serial_state *info = tty->driver_data;  in rs_break()
1161 	if (serial_paranoia_check(info, tty->name, "rs_break"))  in rs_break()
1180 static int rs_get_icount(struct tty_struct *tty,  in rs_get_icount()  argument
1183 	struct serial_state *info = tty->driver_data;  in rs_get_icount()
1205 static int rs_ioctl(struct tty_struct *tty,  in rs_ioctl()  argument
1208 	struct serial_state *info = tty->driver_data;  in rs_ioctl()
1215 	if (serial_paranoia_check(info, tty->name, "rs_ioctl"))  in rs_ioctl()
1220 		if (tty_io_error(tty))  in rs_ioctl()
1277 static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)  in rs_set_termios()  argument
1279 	struct serial_state *info = tty->driver_data;  in rs_set_termios()
1281 	unsigned int cflag = tty->termios.c_cflag;  in rs_set_termios()
1283 	change_speed(tty, info, old_termios);  in rs_set_termios()
1296 		if (!C_CRTSCTS(tty) || !tty_throttled(tty))  in rs_set_termios()
1304 	if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {  in rs_set_termios()
1305 		tty->hw_stopped = 0;  in rs_set_termios()
1306 		rs_start(tty);  in rs_set_termios()
1316 	if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))  in rs_set_termios()
1331 static void rs_close(struct tty_struct *tty, struct file * filp)  in rs_close()  argument
1333 	struct serial_state *state = tty->driver_data;  in rs_close()
1336 	if (serial_paranoia_check(state, tty->name, "rs_close"))  in rs_close()
1339 	if (tty_port_close_start(port, tty, filp) == 0)  in rs_close()
1362 		rs_wait_until_sent(tty, state->timeout);  in rs_close()
1364 	shutdown(tty, state);  in rs_close()
1365 	rs_flush_buffer(tty);  in rs_close()
1367 	tty_ldisc_flush(tty);  in rs_close()
1368 	port->tty = NULL;  in rs_close()
1370 	tty_port_close_end(port, tty);  in rs_close()
1376 static void rs_wait_until_sent(struct tty_struct *tty, int timeout)  in rs_wait_until_sent()  argument
1378 	struct serial_state *info = tty->driver_data;  in rs_wait_until_sent()
1382 	if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent"))  in rs_wait_until_sent()
1439 static void rs_hangup(struct tty_struct *tty)  in rs_hangup()  argument
1441 	struct serial_state *info = tty->driver_data;  in rs_hangup()
1443 	if (serial_paranoia_check(info, tty->name, "rs_hangup"))  in rs_hangup()
1446 	rs_flush_buffer(tty);  in rs_hangup()
1447 	shutdown(tty, info);  in rs_hangup()
1450 	info->tport.tty = NULL;  in rs_hangup()
1460 static int rs_open(struct tty_struct *tty, struct file * filp)  in rs_open()  argument
1462 	struct serial_state *info = rs_table + tty->index;  in rs_open()
1467 	port->tty = tty;  in rs_open()
1468 	tty->driver_data = info;  in rs_open()
1469 	tty->port = port;  in rs_open()
1470 	if (serial_paranoia_check(info, tty->name, "rs_open"))  in rs_open()
1475 	retval = startup(tty, info);  in rs_open()
1480 	return tty_port_block_til_ready(port, tty, filp);  in rs_open()