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()
579 						tty_hangup(tty);  in isicom_interrupt()
596 				if (tty->hw_stopped) {  in isicom_interrupt()
598 						tty->hw_stopped = 0;  in isicom_interrupt()
602 						tty_wakeup(tty);  in isicom_interrupt()
605 					tty->hw_stopped = 1;  in isicom_interrupt()
631 				do_SAK(tty);  in isicom_interrupt()
670 	tty_kref_put(tty);  in isicom_interrupt()
675 static void isicom_config_port(struct tty_struct *tty)  in isicom_config_port()  argument
677 	struct isi_port *port = tty->driver_data;  in isicom_config_port()
686 	baud = C_BAUD(tty);  in isicom_config_port()
697 			tty->termios.c_cflag &= ~CBAUDEX;  in isicom_config_port()
728 		switch (C_CSIZE(tty)) {  in isicom_config_port()
743 		if (C_CSTOPB(tty))  in isicom_config_port()
745 		if (C_PARENB(tty)) {  in isicom_config_port()
747 			if (C_PARODD(tty))  in isicom_config_port()
753 	tty_port_set_check_carrier(&port->port, !C_CLOCAL(tty));  in isicom_config_port()
757 	tty_port_set_cts_flow(&port->port, C_CRTSCTS(tty));  in isicom_config_port()
758 	if (C_CRTSCTS(tty))  in isicom_config_port()
760 	if (I_IXON(tty))  in isicom_config_port()
762 	if (I_IXOFF(tty))  in isicom_config_port()
768 		outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base);  in isicom_config_port()
773 	if (C_CREAD(tty)) {  in isicom_config_port()
798 static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)  in isicom_activate()  argument
819 	isicom_config_port(tty);  in isicom_activate()
831 static struct tty_port *isicom_find_port(struct tty_struct *tty)  in isicom_find_port()  argument
836 	int line = tty->index;  in isicom_find_port()
849 	if (isicom_paranoia_check(port, tty->name, "isicom_open"))  in isicom_find_port()
855 static int isicom_open(struct tty_struct *tty, struct file *filp)  in isicom_open()  argument
860 	tport = isicom_find_port(tty);  in isicom_open()
865 	tty->driver_data = port;  in isicom_open()
866 	return tty_port_open(tport, tty, filp);  in isicom_open()
886 static void isicom_flush_buffer(struct tty_struct *tty)  in isicom_flush_buffer()  argument
888 	struct isi_port *port = tty->driver_data;  in isicom_flush_buffer()
892 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))  in isicom_flush_buffer()
899 	tty_wakeup(tty);  in isicom_flush_buffer()
918 static void isicom_close(struct tty_struct *tty, struct file *filp)  in isicom_close()  argument
920 	struct isi_port *ip = tty->driver_data;  in isicom_close()
927 	if (isicom_paranoia_check(ip, tty->name, "isicom_close"))  in isicom_close()
929 	tty_port_close(port, tty, filp);  in isicom_close()
933 static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,  in isicom_write()  argument
936 	struct isi_port *port = tty->driver_data;  in isicom_write()
941 	if (isicom_paranoia_check(port, tty->name, "isicom_write"))  in isicom_write()
960 	if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)  in isicom_write()
967 static int isicom_put_char(struct tty_struct *tty, unsigned char ch)  in isicom_put_char()  argument
969 	struct isi_port *port = tty->driver_data;  in isicom_put_char()
973 	if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))  in isicom_put_char()
990 static void isicom_flush_chars(struct tty_struct *tty)  in isicom_flush_chars()  argument
992 	struct isi_port *port = tty->driver_data;  in isicom_flush_chars()
994 	if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))  in isicom_flush_chars()
997 	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||  in isicom_flush_chars()
1007 static int isicom_write_room(struct tty_struct *tty)  in isicom_write_room()  argument
1009 	struct isi_port *port = tty->driver_data;  in isicom_write_room()
1012 	if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))  in isicom_write_room()
1022 static int isicom_chars_in_buffer(struct tty_struct *tty)  in isicom_chars_in_buffer()  argument
1024 	struct isi_port *port = tty->driver_data;  in isicom_chars_in_buffer()
1025 	if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))  in isicom_chars_in_buffer()
1031 static int isicom_send_break(struct tty_struct *tty, int length)  in isicom_send_break()  argument
1033 	struct isi_port *port = tty->driver_data;  in isicom_send_break()
1052 static int isicom_tiocmget(struct tty_struct *tty)  in isicom_tiocmget()  argument
1054 	struct isi_port *port = tty->driver_data;  in isicom_tiocmget()
1058 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmget()
1069 static int isicom_tiocmset(struct tty_struct *tty,  in isicom_tiocmset()  argument
1072 	struct isi_port *port = tty->driver_data;  in isicom_tiocmset()
1075 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_tiocmset()
1093 static int isicom_set_serial_info(struct tty_struct *tty,  in isicom_set_serial_info()  argument
1096 	struct isi_port *port = tty->driver_data;  in isicom_set_serial_info()
1126 		isicom_config_port(tty);  in isicom_set_serial_info()
1154 static int isicom_ioctl(struct tty_struct *tty,  in isicom_ioctl()  argument
1157 	struct isi_port *port = tty->driver_data;  in isicom_ioctl()
1160 	if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))  in isicom_ioctl()
1168 		return isicom_set_serial_info(tty, argp);  in isicom_ioctl()
1177 static void isicom_set_termios(struct tty_struct *tty,  in isicom_set_termios()  argument
1180 	struct isi_port *port = tty->driver_data;  in isicom_set_termios()
1183 	if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))  in isicom_set_termios()
1186 	if (tty->termios.c_cflag == old_termios->c_cflag &&  in isicom_set_termios()
1187 			tty->termios.c_iflag == old_termios->c_iflag)  in isicom_set_termios()
1191 	isicom_config_port(tty);  in isicom_set_termios()
1194 	if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {  in isicom_set_termios()
1195 		tty->hw_stopped = 0;  in isicom_set_termios()
1196 		isicom_start(tty);  in isicom_set_termios()
1201 static void isicom_throttle(struct tty_struct *tty)  in isicom_throttle()  argument
1203 	struct isi_port *port = tty->driver_data;  in isicom_throttle()
1206 	if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))  in isicom_throttle()
1215 static void isicom_unthrottle(struct tty_struct *tty)  in isicom_unthrottle()  argument
1217 	struct isi_port *port = tty->driver_data;  in isicom_unthrottle()
1220 	if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))  in isicom_unthrottle()
1229 static void isicom_stop(struct tty_struct *tty)  in isicom_stop()  argument
1231 	struct isi_port *port = tty->driver_data;  in isicom_stop()
1233 	if (isicom_paranoia_check(port, tty->name, "isicom_stop"))  in isicom_stop()
1242 static void isicom_start(struct tty_struct *tty)  in isicom_start()  argument
1244 	struct isi_port *port = tty->driver_data;  in isicom_start()
1246 	if (isicom_paranoia_check(port, tty->name, "isicom_start"))  in isicom_start()
1254 static void isicom_hangup(struct tty_struct *tty)  in isicom_hangup()  argument
1256 	struct isi_port *port = tty->driver_data;  in isicom_hangup()
1258 	if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))  in isicom_hangup()