230 static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
231 static void rp_flush_buffer(struct tty_struct *tty);
234 static void rp_start(struct tty_struct *tty);
427 	struct tty_struct *tty;  in rp_do_transmit()  local
435 	tty = tty_port_tty_get(&info->port);  in rp_do_transmit()
437 	if (tty == NULL) {  in rp_do_transmit()
448 		if (tty->stopped)  in rp_do_transmit()
470 		tty_wakeup(tty);  in rp_do_transmit()
472 		wake_up_interruptible(&tty->poll_wait);  in rp_do_transmit()
477 	tty_kref_put(tty);  in rp_do_transmit()
705 static void configure_r_port(struct tty_struct *tty, struct r_port *info,  in configure_r_port()  argument
713 	struct ktermios *t = &tty->termios;  in configure_r_port()
746 	baud = tty_get_baud_rate(tty);  in configure_r_port()
764 	tty_encode_baud_rate(tty, baud, baud);  in configure_r_port()
789 	if (I_IXON(tty)) {  in configure_r_port()
791 		if (I_IXANY(tty)) {  in configure_r_port()
796 		sSetTxXONChar(cp, START_CHAR(tty));  in configure_r_port()
797 		sSetTxXOFFChar(cp, STOP_CHAR(tty));  in configure_r_port()
809 	if (I_INPCK(tty))  in configure_r_port()
811 	if (I_BRKINT(tty) || I_PARMRK(tty))  in configure_r_port()
818 	if (I_IGNPAR(tty))  in configure_r_port()
820 	if (I_IGNBRK(tty)) {  in configure_r_port()
826 		if (I_IGNPAR(tty))  in configure_r_port()
881 static int rp_open(struct tty_struct *tty, struct file *filp)  in rp_open()  argument
889 	info = rp_table[tty->index];  in rp_open()
906 	tty->driver_data = info;  in rp_open()
907 	tty_port_tty_set(port, tty);  in rp_open()
954 			tty->alt_speed = 57600;  in rp_open()
956 			tty->alt_speed = 115200;  in rp_open()
958 			tty->alt_speed = 230400;  in rp_open()
960 			tty->alt_speed = 460800;  in rp_open()
962 		configure_r_port(tty, info, NULL);  in rp_open()
963 		if (tty->termios.c_cflag & CBAUD) {  in rp_open()
971 	retval = tty_port_block_til_ready(port, tty, filp);  in rp_open()
984 static void rp_close(struct tty_struct *tty, struct file *filp)  in rp_close()  argument
986 	struct r_port *info = tty->driver_data;  in rp_close()
998 	if (tty_port_close_start(port, tty, filp) == 0)  in rp_close()
1011 	rp_wait_until_sent(tty, timeout);  in rp_close()
1022 	if (C_HUPCL(tty))  in rp_close()
1025 	rp_flush_buffer(tty);  in rp_close()
1027 	tty_ldisc_flush(tty);  in rp_close()
1047 	tty->closing = 0;  in rp_close()
1063 static void rp_set_termios(struct tty_struct *tty,  in rp_set_termios()  argument
1066 	struct r_port *info = tty->driver_data;  in rp_set_termios()
1073 	cflag = tty->termios.c_cflag;  in rp_set_termios()
1079 		tty->termios.c_cflag =  in rp_set_termios()
1082 	tty->termios.c_cflag &= ~CMSPAR;  in rp_set_termios()
1084 	configure_r_port(tty, info, old_termios);  in rp_set_termios()
1089 	if ((old_termios->c_cflag & CBAUD) && !(tty->termios.c_cflag & CBAUD)) {  in rp_set_termios()
1095 	if (!(old_termios->c_cflag & CBAUD) && (tty->termios.c_cflag & CBAUD)) {  in rp_set_termios()
1100 	if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios.c_cflag & CRTSCTS))  in rp_set_termios()
1101 		rp_start(tty);  in rp_set_termios()
1104 static int rp_break(struct tty_struct *tty, int break_state)  in rp_break()  argument
1106 	struct r_port *info = tty->driver_data;  in rp_break()
1150 static int rp_tiocmget(struct tty_struct *tty)  in rp_tiocmget()  argument
1152 	struct r_port *info = tty->driver_data;  in rp_tiocmget()
1170 static int rp_tiocmset(struct tty_struct *tty,  in rp_tiocmset()  argument
1173 	struct r_port *info = tty->driver_data;  in rp_tiocmset()
1208 static int set_config(struct tty_struct *tty, struct r_port *info,  in set_config()  argument
1224 		configure_r_port(tty, info, NULL);  in set_config()
1234 		tty->alt_speed = 57600;  in set_config()
1236 		tty->alt_speed = 115200;  in set_config()
1238 		tty->alt_speed = 230400;  in set_config()
1240 		tty->alt_speed = 460800;  in set_config()
1243 	configure_r_port(tty, info, NULL);  in set_config()
1307 static int rp_ioctl(struct tty_struct *tty,  in rp_ioctl()  argument
1310 	struct r_port *info = tty->driver_data;  in rp_ioctl()
1326 		ret = set_config(tty, info, argp);  in rp_ioctl()
1343 static void rp_send_xchar(struct tty_struct *tty, char ch)  in rp_send_xchar()  argument
1345 	struct r_port *info = tty->driver_data;  in rp_send_xchar()
1358 static void rp_throttle(struct tty_struct *tty)  in rp_throttle()  argument
1360 	struct r_port *info = tty->driver_data;  in rp_throttle()
1363 	printk(KERN_INFO "throttle %s: %d....\n", tty->name,  in rp_throttle()
1364 	       tty->ldisc.chars_in_buffer(tty));  in rp_throttle()
1370 	if (I_IXOFF(tty))  in rp_throttle()
1371 		rp_send_xchar(tty, STOP_CHAR(tty));  in rp_throttle()
1376 static void rp_unthrottle(struct tty_struct *tty)  in rp_unthrottle()  argument
1378 	struct r_port *info = tty->driver_data;  in rp_unthrottle()
1380 	printk(KERN_INFO "unthrottle %s: %d....\n", tty->name,  in rp_unthrottle()
1381 	       tty->ldisc.chars_in_buffer(tty));  in rp_unthrottle()
1387 	if (I_IXOFF(tty))  in rp_unthrottle()
1388 		rp_send_xchar(tty, START_CHAR(tty));  in rp_unthrottle()
1401 static void rp_stop(struct tty_struct *tty)  in rp_stop()  argument
1403 	struct r_port *info = tty->driver_data;  in rp_stop()
1406 	printk(KERN_INFO "stop %s: %d %d....\n", tty->name,  in rp_stop()
1417 static void rp_start(struct tty_struct *tty)  in rp_start()  argument
1419 	struct r_port *info = tty->driver_data;  in rp_start()
1422 	printk(KERN_INFO "start %s: %d %d....\n", tty->name,  in rp_start()
1437 static void rp_wait_until_sent(struct tty_struct *tty, int timeout)  in rp_wait_until_sent()  argument
1439 	struct r_port *info = tty->driver_data;  in rp_wait_until_sent()
1491 static void rp_hangup(struct tty_struct *tty)  in rp_hangup()  argument
1494 	struct r_port *info = tty->driver_data;  in rp_hangup()
1503 	rp_flush_buffer(tty);  in rp_hangup()
1531 static int rp_put_char(struct tty_struct *tty, unsigned char ch)  in rp_put_char()  argument
1533 	struct r_port *info = tty->driver_data;  in rp_put_char()
1553 	if (!tty->stopped && info->xmit_fifo_room == 0)  in rp_put_char()
1556 	if (tty->stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) {  in rp_put_char()
1577 static int rp_write(struct tty_struct *tty,  in rp_write()  argument
1580 	struct r_port *info = tty->driver_data;  in rp_write()
1597 	if (!tty->stopped && info->xmit_fifo_room < count)  in rp_write()
1604 	if (!tty->stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) {  in rp_write()
1652 	if ((retval > 0) && !tty->stopped)  in rp_write()
1657  		tty_wakeup(tty);  in rp_write()
1659 		wake_up_interruptible(&tty->poll_wait);  in rp_write()
1671 static int rp_write_room(struct tty_struct *tty)  in rp_write_room()  argument
1673 	struct r_port *info = tty->driver_data;  in rp_write_room()
1692 static int rp_chars_in_buffer(struct tty_struct *tty)  in rp_chars_in_buffer()  argument
1694 	struct r_port *info = tty->driver_data;  in rp_chars_in_buffer()
1710 static void rp_flush_buffer(struct tty_struct *tty)  in rp_flush_buffer()  argument
1712 	struct r_port *info = tty->driver_data;  in rp_flush_buffer()
1724 	wake_up_interruptible(&tty->poll_wait);  in rp_flush_buffer()
1726 	tty_wakeup(tty);  in rp_flush_buffer()