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()
914 	tty->driver_data = info;  in rp_open()
915 	tty_port_tty_set(port, tty);  in rp_open()
962 			tty->alt_speed = 57600;  in rp_open()
964 			tty->alt_speed = 115200;  in rp_open()
966 			tty->alt_speed = 230400;  in rp_open()
968 			tty->alt_speed = 460800;  in rp_open()
970 		configure_r_port(tty, info, NULL);  in rp_open()
971 		if (tty->termios.c_cflag & CBAUD) {  in rp_open()
979 	retval = tty_port_block_til_ready(port, tty, filp);  in rp_open()
992 static void rp_close(struct tty_struct *tty, struct file *filp)  in rp_close()  argument
994 	struct r_port *info = tty->driver_data;  in rp_close()
1006 	if (tty_port_close_start(port, tty, filp) == 0)  in rp_close()
1019 	rp_wait_until_sent(tty, timeout);  in rp_close()
1030 	if (C_HUPCL(tty))  in rp_close()
1033 	rp_flush_buffer(tty);  in rp_close()
1035 	tty_ldisc_flush(tty);  in rp_close()
1055 	tty->closing = 0;  in rp_close()
1072 static void rp_set_termios(struct tty_struct *tty,  in rp_set_termios()  argument
1075 	struct r_port *info = tty->driver_data;  in rp_set_termios()
1082 	cflag = tty->termios.c_cflag;  in rp_set_termios()
1088 		tty->termios.c_cflag =  in rp_set_termios()
1091 	tty->termios.c_cflag &= ~CMSPAR;  in rp_set_termios()
1093 	configure_r_port(tty, info, old_termios);  in rp_set_termios()
1098 	if ((old_termios->c_cflag & CBAUD) && !(tty->termios.c_cflag & CBAUD)) {  in rp_set_termios()
1104 	if (!(old_termios->c_cflag & CBAUD) && (tty->termios.c_cflag & CBAUD)) {  in rp_set_termios()
1109 	if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios.c_cflag & CRTSCTS))  in rp_set_termios()
1110 		rp_start(tty);  in rp_set_termios()
1113 static int rp_break(struct tty_struct *tty, int break_state)  in rp_break()  argument
1115 	struct r_port *info = tty->driver_data;  in rp_break()
1159 static int rp_tiocmget(struct tty_struct *tty)  in rp_tiocmget()  argument
1161 	struct r_port *info = tty->driver_data;  in rp_tiocmget()
1179 static int rp_tiocmset(struct tty_struct *tty,  in rp_tiocmset()  argument
1182 	struct r_port *info = tty->driver_data;  in rp_tiocmset()
1217 static int set_config(struct tty_struct *tty, struct r_port *info,  in set_config()  argument
1233 		configure_r_port(tty, info, NULL);  in set_config()
1243 		tty->alt_speed = 57600;  in set_config()
1245 		tty->alt_speed = 115200;  in set_config()
1247 		tty->alt_speed = 230400;  in set_config()
1249 		tty->alt_speed = 460800;  in set_config()
1252 	configure_r_port(tty, info, NULL);  in set_config()
1316 static int rp_ioctl(struct tty_struct *tty,  in rp_ioctl()  argument
1319 	struct r_port *info = tty->driver_data;  in rp_ioctl()
1335 		ret = set_config(tty, info, argp);  in rp_ioctl()
1352 static void rp_send_xchar(struct tty_struct *tty, char ch)  in rp_send_xchar()  argument
1354 	struct r_port *info = tty->driver_data;  in rp_send_xchar()
1367 static void rp_throttle(struct tty_struct *tty)  in rp_throttle()  argument
1369 	struct r_port *info = tty->driver_data;  in rp_throttle()
1372 	printk(KERN_INFO "throttle %s: %d....\n", tty->name,  in rp_throttle()
1373 	       tty->ldisc.chars_in_buffer(tty));  in rp_throttle()
1379 	if (I_IXOFF(tty))  in rp_throttle()
1380 		rp_send_xchar(tty, STOP_CHAR(tty));  in rp_throttle()
1385 static void rp_unthrottle(struct tty_struct *tty)  in rp_unthrottle()  argument
1387 	struct r_port *info = tty->driver_data;  in rp_unthrottle()
1389 	printk(KERN_INFO "unthrottle %s: %d....\n", tty->name,  in rp_unthrottle()
1390 	       tty->ldisc.chars_in_buffer(tty));  in rp_unthrottle()
1396 	if (I_IXOFF(tty))  in rp_unthrottle()
1397 		rp_send_xchar(tty, START_CHAR(tty));  in rp_unthrottle()
1410 static void rp_stop(struct tty_struct *tty)  in rp_stop()  argument
1412 	struct r_port *info = tty->driver_data;  in rp_stop()
1415 	printk(KERN_INFO "stop %s: %d %d....\n", tty->name,  in rp_stop()
1426 static void rp_start(struct tty_struct *tty)  in rp_start()  argument
1428 	struct r_port *info = tty->driver_data;  in rp_start()
1431 	printk(KERN_INFO "start %s: %d %d....\n", tty->name,  in rp_start()
1446 static void rp_wait_until_sent(struct tty_struct *tty, int timeout)  in rp_wait_until_sent()  argument
1448 	struct r_port *info = tty->driver_data;  in rp_wait_until_sent()
1500 static void rp_hangup(struct tty_struct *tty)  in rp_hangup()  argument
1503 	struct r_port *info = tty->driver_data;  in rp_hangup()
1512 	rp_flush_buffer(tty);  in rp_hangup()
1544 static int rp_put_char(struct tty_struct *tty, unsigned char ch)  in rp_put_char()  argument
1546 	struct r_port *info = tty->driver_data;  in rp_put_char()
1566 	if (!tty->stopped && info->xmit_fifo_room == 0)  in rp_put_char()
1569 	if (tty->stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) {  in rp_put_char()
1590 static int rp_write(struct tty_struct *tty,  in rp_write()  argument
1593 	struct r_port *info = tty->driver_data;  in rp_write()
1610 	if (!tty->stopped && info->xmit_fifo_room < count)  in rp_write()
1617 	if (!tty->stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) {  in rp_write()
1665 	if ((retval > 0) && !tty->stopped)  in rp_write()
1670  		tty_wakeup(tty);  in rp_write()
1672 		wake_up_interruptible(&tty->poll_wait);  in rp_write()
1684 static int rp_write_room(struct tty_struct *tty)  in rp_write_room()  argument
1686 	struct r_port *info = tty->driver_data;  in rp_write_room()
1705 static int rp_chars_in_buffer(struct tty_struct *tty)  in rp_chars_in_buffer()  argument
1707 	struct r_port *info = tty->driver_data;  in rp_chars_in_buffer()
1723 static void rp_flush_buffer(struct tty_struct *tty)  in rp_flush_buffer()  argument
1725 	struct r_port *info = tty->driver_data;  in rp_flush_buffer()
1737 	wake_up_interruptible(&tty->poll_wait);  in rp_flush_buffer()
1739 	tty_wakeup(tty);  in rp_flush_buffer()