174 static void isicom_start(struct tty_struct *tty);
400 	struct tty_struct *tty;  in isicom_tx()  local
427 	tty = tty_port_tty_get(&port->port);  in isicom_tx()
428 	if (tty == NULL)  in isicom_tx()
438 		if (txcount <= 0 || tty->stopped || tty->hw_stopped)  in isicom_tx()
491 			tty_wakeup(tty);  in isicom_tx()
495 	tty_kref_put(tty);  in isicom_tx()
511 	struct tty_struct *tty;  in isicom_interrupt()  local
554 	tty = tty_port_tty_get(&port->port);  in isicom_interrupt()
555 	if (tty == NULL) {  in isicom_interrupt()
578 						tty_hangup(tty);  in isicom_interrupt()
595 				if (tty->hw_stopped) {  in isicom_interrupt()
597 						tty->hw_stopped = 0;  in isicom_interrupt()
601 						tty_wakeup(tty);  in isicom_interrupt()
604 					tty->hw_stopped = 1;  in isicom_interrupt()
630 				do_SAK(tty);  in isicom_interrupt()
669 	tty_kref_put(tty);  in isicom_interrupt()
674 static void isicom_config_port(struct tty_struct *tty)  in isicom_config_port()  argument
676 	struct isi_port *port = tty->driver_data;  in isicom_config_port()
685 	baud = C_BAUD(tty);  in isicom_config_port()
696 			tty->termios.c_cflag &= ~CBAUDEX;  in isicom_config_port()
727 		switch (C_CSIZE(tty)) {  in isicom_config_port()
742 		if (C_CSTOPB(tty))  in isicom_config_port()
744 		if (C_PARENB(tty)) {  in isicom_config_port()
746 			if (C_PARODD(tty))  in isicom_config_port()
752 	tty_port_set_check_carrier(&port->port, !C_CLOCAL(tty));  in isicom_config_port()
756 	tty_port_set_cts_flow(&port->port, C_CRTSCTS(tty));  in isicom_config_port()
757 	if (C_CRTSCTS(tty))  in isicom_config_port()
759 	if (I_IXON(tty))  in isicom_config_port()
761 	if (I_IXOFF(tty))  in isicom_config_port()
767 		outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base);  in isicom_config_port()
772 	if (C_CREAD(tty)) {  in isicom_config_port()
797 static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)  in isicom_activate()  argument
818 	isicom_config_port(tty);  in isicom_activate()
830 static struct tty_port *isicom_find_port(struct tty_struct *tty)  in isicom_find_port()  argument
835 	int line = tty->index;  in isicom_find_port()
848 	if (isicom_paranoia_check(port, tty->name, "isicom_open"))  in isicom_find_port()
854 static int isicom_open(struct tty_struct *tty, struct file *filp)  in isicom_open()  argument
859 	tport = isicom_find_port(tty);  in isicom_open()
864 	tty->driver_data = port;  in isicom_open()
865 	return tty_port_open(tport, tty, filp);  in isicom_open()
885 static void isicom_flush_buffer(struct tty_struct *tty)  in isicom_flush_buffer()  argument
887 	struct isi_port *port = tty->driver_data;  in isicom_flush_buffer()
891 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))  in isicom_flush_buffer()
898 	tty_wakeup(tty);  in isicom_flush_buffer()
917 static void isicom_close(struct tty_struct *tty, struct file *filp)  in isicom_close()  argument
919 	struct isi_port *ip = tty->driver_data;  in isicom_close()
926 	if (isicom_paranoia_check(ip, tty->name, "isicom_close"))  in isicom_close()
928 	tty_port_close(port, tty, filp);  in isicom_close()
932 static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,  in isicom_write()  argument
935 	struct isi_port *port = tty->driver_data;  in isicom_write()
940 	if (isicom_paranoia_check(port, tty->name, "isicom_write"))  in isicom_write()
959 	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)  in isicom_write()
966 static int isicom_put_char(struct tty_struct *tty, unsigned char ch)  in isicom_put_char()  argument
968 	struct isi_port *port = tty->driver_data;  in isicom_put_char()
972 	if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))  in isicom_put_char()
989 static void isicom_flush_chars(struct tty_struct *tty)  in isicom_flush_chars()  argument
991 	struct isi_port *port = tty->driver_data;  in isicom_flush_chars()
993 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))  in isicom_flush_chars()
996 	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||  in isicom_flush_chars()
1006 static int isicom_write_room(struct tty_struct *tty)  in isicom_write_room()  argument
1008 	struct isi_port *port = tty->driver_data;  in isicom_write_room()
1011 	if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))  in isicom_write_room()
1021 static int isicom_chars_in_buffer(struct tty_struct *tty)  in isicom_chars_in_buffer()  argument
1023 	struct isi_port *port = tty->driver_data;  in isicom_chars_in_buffer()
1024 	if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))  in isicom_chars_in_buffer()
1030 static int isicom_send_break(struct tty_struct *tty, int length)  in isicom_send_break()  argument
1032 	struct isi_port *port = tty->driver_data;  in isicom_send_break()
1051 static int isicom_tiocmget(struct tty_struct *tty)  in isicom_tiocmget()  argument
1053 	struct isi_port *port = tty->driver_data;  in isicom_tiocmget()
1057 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmget()
1068 static int isicom_tiocmset(struct tty_struct *tty,  in isicom_tiocmset()  argument
1071 	struct isi_port *port = tty->driver_data;  in isicom_tiocmset()
1074 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmset()
1092 static int isicom_set_serial_info(struct tty_struct *tty,  in isicom_set_serial_info()  argument
1095 	struct isi_port *port = tty->driver_data;  in isicom_set_serial_info()
1098 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_set_serial_info()
1124 		isicom_config_port(tty);  in isicom_set_serial_info()
1131 static int isicom_get_serial_info(struct tty_struct *tty,  in isicom_get_serial_info()  argument
1134 	struct isi_port *port = tty->driver_data;  in isicom_get_serial_info()
1136 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_get_serial_info()
1153 static void isicom_set_termios(struct tty_struct *tty,  in isicom_set_termios()  argument
1156 	struct isi_port *port = tty->driver_data;  in isicom_set_termios()
1159 	if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))  in isicom_set_termios()
1162 	if (tty->termios.c_cflag == old_termios->c_cflag &&  in isicom_set_termios()
1163 			tty->termios.c_iflag == old_termios->c_iflag)  in isicom_set_termios()
1167 	isicom_config_port(tty);  in isicom_set_termios()
1170 	if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {  in isicom_set_termios()
1171 		tty->hw_stopped = 0;  in isicom_set_termios()
1172 		isicom_start(tty);  in isicom_set_termios()
1177 static void isicom_throttle(struct tty_struct *tty)  in isicom_throttle()  argument
1179 	struct isi_port *port = tty->driver_data;  in isicom_throttle()
1182 	if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))  in isicom_throttle()
1191 static void isicom_unthrottle(struct tty_struct *tty)  in isicom_unthrottle()  argument
1193 	struct isi_port *port = tty->driver_data;  in isicom_unthrottle()
1196 	if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))  in isicom_unthrottle()
1205 static void isicom_stop(struct tty_struct *tty)  in isicom_stop()  argument
1207 	struct isi_port *port = tty->driver_data;  in isicom_stop()
1209 	if (isicom_paranoia_check(port, tty->name, "isicom_stop"))  in isicom_stop()
1218 static void isicom_start(struct tty_struct *tty)  in isicom_start()  argument
1220 	struct isi_port *port = tty->driver_data;  in isicom_start()
1222 	if (isicom_paranoia_check(port, tty->name, "isicom_start"))  in isicom_start()
1230 static void isicom_hangup(struct tty_struct *tty)  in isicom_hangup()  argument
1232 	struct isi_port *port = tty->driver_data;  in isicom_hangup()
1234 	if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))  in isicom_hangup()