167 	struct line *line = container_of(work, struct line, task.work);  in line_timer_cb()  local
169 	if (!line->throttled)  in line_timer_cb()
170 		chan_interrupt(line, line->read_irq);  in line_timer_cb()
173 int enable_chan(struct line *line)  in enable_chan()  argument
179 	INIT_DELAYED_WORK(&line->task, line_timer_cb);  in enable_chan()
181 	list_for_each(ele, &line->chan_list) {  in enable_chan()
195 				     line, chan);  in enable_chan()
205 	close_chan(line);  in enable_chan()
233 			um_free_irq(chan->line->read_irq, chan);  in free_irqs()
236 			um_free_irq(chan->line->write_irq, chan);  in free_irqs()
254 			um_free_irq(chan->line->read_irq, chan);  in close_one_chan()
257 			um_free_irq(chan->line->write_irq, chan);  in close_one_chan()
270 void close_chan(struct line *line)  in close_chan()  argument
279 	list_for_each_entry_reverse(chan, &line->chan_list, list) {  in close_chan()
317 int console_open_chan(struct line *line, struct console *co)  in console_open_chan()  argument
321 	err = open_chan(&line->chan_list);  in console_open_chan()
330 int chan_window_size(struct line *line, unsigned short *rows_out,  in chan_window_size()  argument
335 	chan = line->chan_in;  in chan_window_size()
342 	chan = line->chan_out;  in chan_window_size()
423 int chan_config_string(struct line *line, char *str, int size,  in chan_config_string()  argument
426 	struct chan *in = line->chan_in, *out = line->chan_out;  in chan_config_string()
477 static struct chan *parse_chan(struct line *line, char *str, int device,  in parse_chan()  argument
515 				 .line		= line,  in parse_chan()
528 int parse_chan_pair(char *str, struct line *line, int device,  in parse_chan_pair()  argument
531 	struct list_head *chans = &line->chan_list;  in parse_chan_pair()
536 		line->chan_in = line->chan_out = NULL;  in parse_chan_pair()
549 		new = parse_chan(line, in, device, opts, error_out);  in parse_chan_pair()
555 		line->chan_in = new;  in parse_chan_pair()
557 		new = parse_chan(line, out, device, opts, error_out);  in parse_chan_pair()
563 		line->chan_out = new;  in parse_chan_pair()
566 		new = parse_chan(line, str, device, opts, error_out);  in parse_chan_pair()
573 		line->chan_in = line->chan_out = new;  in parse_chan_pair()
578 void chan_interrupt(struct line *line, int irq)  in chan_interrupt()  argument
580 	struct tty_port *port = &line->port;  in chan_interrupt()
581 	struct chan *chan = line->chan_in;  in chan_interrupt()
590 			schedule_delayed_work(&line->task, 1);  in chan_interrupt()
600 			tty_port_tty_hangup(&line->port, false);  in chan_interrupt()
601 			if (line->chan_out != chan)  in chan_interrupt()
602 				close_one_chan(line->chan_out, 1);  in chan_interrupt()