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()
350 			 __FILE__, __LINE__, tty->driver->name, port->count);  in ircomm_tty_block_til_ready()
365 		 __FILE__, __LINE__, tty->driver->name, port->count);  in ircomm_tty_block_til_ready()
374 static int ircomm_tty_install(struct tty_driver *driver, struct tty_struct *tty)  in ircomm_tty_install()  argument
377 	unsigned int line = tty->index;  in ircomm_tty_install()
408 		tty->termios.c_iflag = 0;  in ircomm_tty_install()
409 		tty->termios.c_oflag = 0;  in ircomm_tty_install()
415 	tty->driver_data = self;  in ircomm_tty_install()
417 	return tty_port_install(&self->port, driver, tty);  in ircomm_tty_install()
427 static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)  in ircomm_tty_open()  argument
429 	struct ircomm_tty_cb *self = tty->driver_data;  in ircomm_tty_open()
437 	tty_port_tty_set(&self->port, tty);  in ircomm_tty_open()
439 	pr_debug("%s(), %s%d, count = %d\n", __func__ , tty->driver->name,  in ircomm_tty_open()
462 	ret = ircomm_tty_block_til_ready(self, tty, filp);  in ircomm_tty_open()
478 static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)  in ircomm_tty_close()  argument
480 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_close()
486 	if (tty_port_close_start(port, tty, filp) == 0)  in ircomm_tty_close()
491 	tty_driver_flush_buffer(tty);  in ircomm_tty_close()
493 	tty_port_close_end(port, tty);  in ircomm_tty_close()
503 static void ircomm_tty_flush_buffer(struct tty_struct *tty)  in ircomm_tty_flush_buffer()  argument
505 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_flush_buffer()
528 	struct tty_struct *tty;  in ircomm_tty_do_softint()  local
535 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_do_softint()
536 	if (!tty)  in ircomm_tty_do_softint()
555 	if (tty->hw_stopped)  in ircomm_tty_do_softint()
574 	tty_wakeup(tty);  in ircomm_tty_do_softint()
576 	tty_kref_put(tty);  in ircomm_tty_do_softint()
587 static int ircomm_tty_write(struct tty_struct *tty,  in ircomm_tty_write()  argument
590 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_write()
598 		 tty->hw_stopped);  in ircomm_tty_write()
720 static int ircomm_tty_write_room(struct tty_struct *tty)  in ircomm_tty_write_room()  argument
722 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_write_room()
739 	if (tty->hw_stopped)  in ircomm_tty_write_room()
760 static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)  in ircomm_tty_wait_until_sent()  argument
762 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_wait_until_sent()
797 static void ircomm_tty_throttle(struct tty_struct *tty)  in ircomm_tty_throttle()  argument
799 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_throttle()
805 	if (I_IXOFF(tty))  in ircomm_tty_throttle()
806 		ircomm_tty_send_xchar(tty, STOP_CHAR(tty));  in ircomm_tty_throttle()
809 	if (tty->termios.c_cflag & CRTSCTS) {  in ircomm_tty_throttle()
826 static void ircomm_tty_unthrottle(struct tty_struct *tty)  in ircomm_tty_unthrottle()  argument
828 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_unthrottle()
834 	if (I_IXOFF(tty)) {  in ircomm_tty_unthrottle()
835 		ircomm_tty_send_xchar(tty, START_CHAR(tty));  in ircomm_tty_unthrottle()
839 	if (tty->termios.c_cflag & CRTSCTS) {  in ircomm_tty_unthrottle()
854 static int ircomm_tty_chars_in_buffer(struct tty_struct *tty)  in ircomm_tty_chars_in_buffer()  argument
856 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_chars_in_buffer()
916 static void ircomm_tty_hangup(struct tty_struct *tty)  in ircomm_tty_hangup()  argument
918 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_hangup()
930 	if (port->tty) {  in ircomm_tty_hangup()
931 		set_bit(TTY_IO_ERROR, &port->tty->flags);  in ircomm_tty_hangup()
932 		tty_kref_put(port->tty);  in ircomm_tty_hangup()
934 	port->tty = NULL;  in ircomm_tty_hangup()
947 static void ircomm_tty_send_xchar(struct tty_struct *tty, char ch)  in ircomm_tty_send_xchar()  argument
958 void ircomm_tty_start(struct tty_struct *tty)  in ircomm_tty_start()  argument
960 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_start()
971 static void ircomm_tty_stop(struct tty_struct *tty)  in ircomm_tty_stop()  argument
973 	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;  in ircomm_tty_stop()
990 	struct tty_struct *tty;  in ircomm_tty_check_modem_status()  local
996 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_check_modem_status()
1011 			if (tty)  in ircomm_tty_check_modem_status()
1012 				tty_hangup(tty);  in ircomm_tty_check_modem_status()
1018 	if (tty && tty_port_cts_enabled(&self->port)) {  in ircomm_tty_check_modem_status()
1019 		if (tty->hw_stopped) {  in ircomm_tty_check_modem_status()
1022 				tty->hw_stopped = 0;  in ircomm_tty_check_modem_status()
1033 				tty->hw_stopped = 1;  in ircomm_tty_check_modem_status()
1038 	tty_kref_put(tty);  in ircomm_tty_check_modem_status()
1051 	struct tty_struct *tty;  in ircomm_tty_data_indication()  local
1057 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_data_indication()
1058 	if (!tty) {  in ircomm_tty_data_indication()
1069 	if (tty->hw_stopped && (self->flow == FLOW_START)) {  in ircomm_tty_data_indication()
1077 	tty_kref_put(tty);  in ircomm_tty_data_indication()
1128 	struct tty_struct *tty;  in ircomm_tty_flow_indication()  local
1133 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_flow_indication()
1138 		if (tty)  in ircomm_tty_flow_indication()
1139 			tty->hw_stopped = 0;  in ircomm_tty_flow_indication()
1147 		if (tty)  in ircomm_tty_flow_indication()
1148 			tty->hw_stopped = 1;  in ircomm_tty_flow_indication()
1152 	tty_kref_put(tty);  in ircomm_tty_flow_indication()
1159 	struct tty_struct *tty;  in ircomm_tty_line_info()  local
1286 	tty = tty_port_tty_get(&self->port);  in ircomm_tty_line_info()
1287 	if (tty) {  in ircomm_tty_line_info()
1289 			       tty->hw_stopped ? "Stopped" : "Running");  in ircomm_tty_line_info()
1290 		tty_kref_put(tty);  in ircomm_tty_line_info()