178 static void isicom_start(struct tty_struct *tty);
408 	struct tty_struct *tty;  in isicom_tx()  local
435 	tty = tty_port_tty_get(&port->port);  in isicom_tx()
436 	if (tty == NULL)  in isicom_tx()
446 		if (txcount <= 0 || tty->stopped || tty->hw_stopped)  in isicom_tx()
499 			tty_wakeup(tty);  in isicom_tx()
503 	tty_kref_put(tty);  in isicom_tx()
519 	struct tty_struct *tty;  in isicom_interrupt()  local
562 	tty = tty_port_tty_get(&port->port);  in isicom_interrupt()
563 	if (tty == NULL) {  in isicom_interrupt()
587 						tty_hangup(tty);  in isicom_interrupt()
604 				if (tty->hw_stopped) {  in isicom_interrupt()
606 						tty->hw_stopped = 0;  in isicom_interrupt()
610 						tty_wakeup(tty);  in isicom_interrupt()
613 					tty->hw_stopped = 1;  in isicom_interrupt()
639 				do_SAK(tty);  in isicom_interrupt()
678 	tty_kref_put(tty);  in isicom_interrupt()
683 static void isicom_config_port(struct tty_struct *tty)  in isicom_config_port()  argument
685 	struct isi_port *port = tty->driver_data;  in isicom_config_port()
694 	baud = C_BAUD(tty);  in isicom_config_port()
705 			tty->termios.c_cflag &= ~CBAUDEX;  in isicom_config_port()
736 		switch (C_CSIZE(tty)) {  in isicom_config_port()
751 		if (C_CSTOPB(tty))  in isicom_config_port()
753 		if (C_PARENB(tty)) {  in isicom_config_port()
755 			if (C_PARODD(tty))  in isicom_config_port()
761 	if (C_CLOCAL(tty))  in isicom_config_port()
769 	if (C_CRTSCTS(tty)) {  in isicom_config_port()
773 	if (I_IXON(tty))  in isicom_config_port()
775 	if (I_IXOFF(tty))  in isicom_config_port()
781 		outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base);  in isicom_config_port()
786 	if (C_CREAD(tty)) {  in isicom_config_port()
811 static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)  in isicom_activate()  argument
832 	isicom_config_port(tty);  in isicom_activate()
844 static struct tty_port *isicom_find_port(struct tty_struct *tty)  in isicom_find_port()  argument
849 	int line = tty->index;  in isicom_find_port()
862 	if (isicom_paranoia_check(port, tty->name, "isicom_open"))  in isicom_find_port()
868 static int isicom_open(struct tty_struct *tty, struct file *filp)  in isicom_open()  argument
873 	tport = isicom_find_port(tty);  in isicom_open()
878 	tty->driver_data = port;  in isicom_open()
879 	return tty_port_open(tport, tty, filp);  in isicom_open()
899 static void isicom_flush_buffer(struct tty_struct *tty)  in isicom_flush_buffer()  argument
901 	struct isi_port *port = tty->driver_data;  in isicom_flush_buffer()
905 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))  in isicom_flush_buffer()
912 	tty_wakeup(tty);  in isicom_flush_buffer()
931 static void isicom_close(struct tty_struct *tty, struct file *filp)  in isicom_close()  argument
933 	struct isi_port *ip = tty->driver_data;  in isicom_close()
940 	if (isicom_paranoia_check(ip, tty->name, "isicom_close"))  in isicom_close()
942 	tty_port_close(port, tty, filp);  in isicom_close()
946 static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,  in isicom_write()  argument
949 	struct isi_port *port = tty->driver_data;  in isicom_write()
954 	if (isicom_paranoia_check(port, tty->name, "isicom_write"))  in isicom_write()
973 	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)  in isicom_write()
980 static int isicom_put_char(struct tty_struct *tty, unsigned char ch)  in isicom_put_char()  argument
982 	struct isi_port *port = tty->driver_data;  in isicom_put_char()
986 	if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))  in isicom_put_char()
1003 static void isicom_flush_chars(struct tty_struct *tty)  in isicom_flush_chars()  argument
1005 	struct isi_port *port = tty->driver_data;  in isicom_flush_chars()
1007 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))  in isicom_flush_chars()
1010 	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||  in isicom_flush_chars()
1020 static int isicom_write_room(struct tty_struct *tty)  in isicom_write_room()  argument
1022 	struct isi_port *port = tty->driver_data;  in isicom_write_room()
1025 	if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))  in isicom_write_room()
1035 static int isicom_chars_in_buffer(struct tty_struct *tty)  in isicom_chars_in_buffer()  argument
1037 	struct isi_port *port = tty->driver_data;  in isicom_chars_in_buffer()
1038 	if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))  in isicom_chars_in_buffer()
1044 static int isicom_send_break(struct tty_struct *tty, int length)  in isicom_send_break()  argument
1046 	struct isi_port *port = tty->driver_data;  in isicom_send_break()
1065 static int isicom_tiocmget(struct tty_struct *tty)  in isicom_tiocmget()  argument
1067 	struct isi_port *port = tty->driver_data;  in isicom_tiocmget()
1071 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmget()
1082 static int isicom_tiocmset(struct tty_struct *tty,  in isicom_tiocmset()  argument
1085 	struct isi_port *port = tty->driver_data;  in isicom_tiocmset()
1088 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmset()
1106 static int isicom_set_serial_info(struct tty_struct *tty,  in isicom_set_serial_info()  argument
1109 	struct isi_port *port = tty->driver_data;  in isicom_set_serial_info()
1139 		isicom_config_port(tty);  in isicom_set_serial_info()
1167 static int isicom_ioctl(struct tty_struct *tty,  in isicom_ioctl()  argument
1170 	struct isi_port *port = tty->driver_data;  in isicom_ioctl()
1173 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_ioctl()
1181 		return isicom_set_serial_info(tty, argp);  in isicom_ioctl()
1190 static void isicom_set_termios(struct tty_struct *tty,  in isicom_set_termios()  argument
1193 	struct isi_port *port = tty->driver_data;  in isicom_set_termios()
1196 	if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))  in isicom_set_termios()
1199 	if (tty->termios.c_cflag == old_termios->c_cflag &&  in isicom_set_termios()
1200 			tty->termios.c_iflag == old_termios->c_iflag)  in isicom_set_termios()
1204 	isicom_config_port(tty);  in isicom_set_termios()
1208 			!(tty->termios.c_cflag & CRTSCTS)) {  in isicom_set_termios()
1209 		tty->hw_stopped = 0;  in isicom_set_termios()
1210 		isicom_start(tty);  in isicom_set_termios()
1215 static void isicom_throttle(struct tty_struct *tty)  in isicom_throttle()  argument
1217 	struct isi_port *port = tty->driver_data;  in isicom_throttle()
1220 	if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))  in isicom_throttle()
1229 static void isicom_unthrottle(struct tty_struct *tty)  in isicom_unthrottle()  argument
1231 	struct isi_port *port = tty->driver_data;  in isicom_unthrottle()
1234 	if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))  in isicom_unthrottle()
1243 static void isicom_stop(struct tty_struct *tty)  in isicom_stop()  argument
1245 	struct isi_port *port = tty->driver_data;  in isicom_stop()
1247 	if (isicom_paranoia_check(port, tty->name, "isicom_stop"))  in isicom_stop()
1256 static void isicom_start(struct tty_struct *tty)  in isicom_start()  argument
1258 	struct isi_port *port = tty->driver_data;  in isicom_start()
1260 	if (isicom_paranoia_check(port, tty->name, "isicom_start"))  in isicom_start()
1268 static void isicom_hangup(struct tty_struct *tty)  in isicom_hangup()  argument
1270 	struct isi_port *port = tty->driver_data;  in isicom_hangup()
1272 	if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))  in isicom_hangup()