54 		struct tty_struct *tty);
55 static int  ircomm_tty_open(struct tty_struct *tty, struct file *filp);
56 static void ircomm_tty_close(struct tty_struct * tty, struct file *filp);
57 static int  ircomm_tty_write(struct tty_struct * tty,
59 static int  ircomm_tty_write_room(struct tty_struct *tty);
60 static void ircomm_tty_throttle(struct tty_struct *tty);
61 static void ircomm_tty_unthrottle(struct tty_struct *tty);
62 static int  ircomm_tty_chars_in_buffer(struct tty_struct *tty);
63 static void ircomm_tty_flush_buffer(struct tty_struct *tty);
64 static void ircomm_tty_send_xchar(struct tty_struct *tty, char ch);
65 static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout);
66 static void ircomm_tty_hangup(struct tty_struct *tty);
69 static void ircomm_tty_stop(struct tty_struct *tty);
271 		struct tty_struct *tty, struct file *filp)  in ircomm_tty_block_til_ready()  argument
283 	if (test_bit(TTY_IO_ERROR, &tty->flags)) {  in ircomm_tty_block_til_ready()
290 		if (tty->termios.c_cflag & CBAUD)  in ircomm_tty_block_til_ready()
297 	if (tty->termios.c_cflag & CLOCAL) {  in ircomm_tty_block_til_ready()
313 		 __FILE__, __LINE__, tty->driver->name, port->count);  in ircomm_tty_block_til_ready()
321 		if (C_BAUD(tty) && test_bit(ASYNCB_INITIALIZED, &port->flags))  in ircomm_tty_block_til_ready()
351 			 __FILE__, __LINE__, tty->driver->name, port->count);  in ircomm_tty_block_til_ready()
366 		 __FILE__, __LINE__, tty->driver->name, port->count);  in ircomm_tty_block_til_ready()
375 static int ircomm_tty_install(struct tty_driver *driver, struct tty_struct *tty)  in ircomm_tty_install()  argument
378 	unsigned int line = tty->index;  in ircomm_tty_install()
409 		tty->termios.c_iflag = 0;  in ircomm_tty_install()
410 		tty->termios.c_oflag = 0;  in ircomm_tty_install()
416 	tty->driver_data = self;  in ircomm_tty_install()
418 	return tty_port_install(&self->port, driver, tty);  in ircomm_tty_install()
428 static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)  in ircomm_tty_open()  argument
430 	struct ircomm_tty_cb *self = tty->driver_data;  in ircomm_tty_open()
438 	tty_port_tty_set(&self->port, tty);  in ircomm_tty_open()
440 	pr_debug("%s(), %s%d, count = %d\n", __func__ , tty->driver->name,  in ircomm_tty_open()
491 	ret = ircomm_tty_block_til_ready(self, tty, filp);  in ircomm_tty_open()
507 static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)  in ircomm_tty_close()  argument
509 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_close()
515 	if (tty_port_close_start(port, tty, filp) == 0)  in ircomm_tty_close()
520 	tty_driver_flush_buffer(tty);  in ircomm_tty_close()
522 	tty_port_close_end(port, tty);  in ircomm_tty_close()
532 static void ircomm_tty_flush_buffer(struct tty_struct *tty)  in ircomm_tty_flush_buffer()  argument
534 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_flush_buffer()
557 	struct tty_struct *tty;  in ircomm_tty_do_softint()  local
564 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_do_softint()
565 	if (!tty)  in ircomm_tty_do_softint()
584 	if (tty->hw_stopped)  in ircomm_tty_do_softint()
603 	tty_wakeup(tty);  in ircomm_tty_do_softint()
605 	tty_kref_put(tty);  in ircomm_tty_do_softint()
616 static int ircomm_tty_write(struct tty_struct *tty,  in ircomm_tty_write()  argument
619 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_write()
627 		 tty->hw_stopped);  in ircomm_tty_write()
749 static int ircomm_tty_write_room(struct tty_struct *tty)  in ircomm_tty_write_room()  argument
751 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_write_room()
768 	if (tty->hw_stopped)  in ircomm_tty_write_room()
789 static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)  in ircomm_tty_wait_until_sent()  argument
791 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_wait_until_sent()
826 static void ircomm_tty_throttle(struct tty_struct *tty)  in ircomm_tty_throttle()  argument
828 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_throttle()
834 	if (I_IXOFF(tty))  in ircomm_tty_throttle()
835 		ircomm_tty_send_xchar(tty, STOP_CHAR(tty));  in ircomm_tty_throttle()
838 	if (tty->termios.c_cflag & CRTSCTS) {  in ircomm_tty_throttle()
855 static void ircomm_tty_unthrottle(struct tty_struct *tty)  in ircomm_tty_unthrottle()  argument
857 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_unthrottle()
863 	if (I_IXOFF(tty)) {  in ircomm_tty_unthrottle()
864 		ircomm_tty_send_xchar(tty, START_CHAR(tty));  in ircomm_tty_unthrottle()
868 	if (tty->termios.c_cflag & CRTSCTS) {  in ircomm_tty_unthrottle()
883 static int ircomm_tty_chars_in_buffer(struct tty_struct *tty)  in ircomm_tty_chars_in_buffer()  argument
885 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_chars_in_buffer()
945 static void ircomm_tty_hangup(struct tty_struct *tty)  in ircomm_tty_hangup()  argument
947 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_hangup()
959 	if (port->tty) {  in ircomm_tty_hangup()
960 		set_bit(TTY_IO_ERROR, &port->tty->flags);  in ircomm_tty_hangup()
961 		tty_kref_put(port->tty);  in ircomm_tty_hangup()
963 	port->tty = NULL;  in ircomm_tty_hangup()
976 static void ircomm_tty_send_xchar(struct tty_struct *tty, char ch)  in ircomm_tty_send_xchar()  argument
987 void ircomm_tty_start(struct tty_struct *tty)  in ircomm_tty_start()  argument
989 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_start()
1000 static void ircomm_tty_stop(struct tty_struct *tty)  in ircomm_tty_stop()  argument
1002 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_stop()
1019 	struct tty_struct *tty;  in ircomm_tty_check_modem_status()  local
1025 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_check_modem_status()
1040 			if (tty)  in ircomm_tty_check_modem_status()
1041 				tty_hangup(tty);  in ircomm_tty_check_modem_status()
1047 	if (tty && tty_port_cts_enabled(&self->port)) {  in ircomm_tty_check_modem_status()
1048 		if (tty->hw_stopped) {  in ircomm_tty_check_modem_status()
1051 				tty->hw_stopped = 0;  in ircomm_tty_check_modem_status()
1062 				tty->hw_stopped = 1;  in ircomm_tty_check_modem_status()
1067 	tty_kref_put(tty);  in ircomm_tty_check_modem_status()
1080 	struct tty_struct *tty;  in ircomm_tty_data_indication()  local
1086 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_data_indication()
1087 	if (!tty) {  in ircomm_tty_data_indication()
1098 	if (tty->hw_stopped && (self->flow == FLOW_START)) {  in ircomm_tty_data_indication()
1106 	tty_kref_put(tty);  in ircomm_tty_data_indication()
1157 	struct tty_struct *tty;  in ircomm_tty_flow_indication()  local
1162 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_flow_indication()
1167 		if (tty)  in ircomm_tty_flow_indication()
1168 			tty->hw_stopped = 0;  in ircomm_tty_flow_indication()
1176 		if (tty)  in ircomm_tty_flow_indication()
1177 			tty->hw_stopped = 1;  in ircomm_tty_flow_indication()
1181 	tty_kref_put(tty);  in ircomm_tty_flow_indication()
1188 	struct tty_struct *tty;  in ircomm_tty_line_info()  local
1315 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_line_info()
1316 	if (tty) {  in ircomm_tty_line_info()
1318 			       tty->hw_stopped ? "Stopped" : "Running");  in ircomm_tty_line_info()
1319 		tty_kref_put(tty);  in ircomm_tty_line_info()