leds/trigger/ledtrig-tty.c

46 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
49 	ret = wait_for_completion_timeout(&trigger_data->sysfs,
60 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
64 	reinit_completion(&trigger_data->sysfs);
69 	if (trigger_data->ttyname)
70 		len = sprintf(buf, "%s\n", trigger_data->ttyname);
79 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
95 	reinit_completion(&trigger_data->sysfs);
100 	kfree(trigger_data->ttyname);
101 	tty_kref_put(trigger_data->tty);
102 	trigger_data->tty = NULL;
104 	trigger_data->ttyname = ttyname;
113 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
118 		state = trigger_data->mode_rx;
121 		state = trigger_data->mode_tx;
124 		state = trigger_data->mode_cts;
127 		state = trigger_data->mode_dsr;
130 		state = trigger_data->mode_dcd;
133 		state = trigger_data->mode_rng;
143 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
153 		trigger_data->mode_rx = state;
156 		trigger_data->mode_tx = state;
159 		trigger_data->mode_cts = state;
162 		trigger_data->mode_dsr = state;
165 		trigger_data->mode_dcd = state;
168 		trigger_data->mode_rng = state;
197 	struct ledtrig_tty_data *trigger_data =
205 	if (!trigger_data->ttyname)
209 	if (!trigger_data->tty) {
214 		ret = tty_dev_name_to_number(trigger_data->ttyname, &devno);
227 		trigger_data->tty = tty;
230 	status = tty_get_tiocm(trigger_data->tty);
232 		if (trigger_data->mode_cts) {
237 		if (trigger_data->mode_dsr) {
242 		if (trigger_data->mode_dcd) {
247 		if (trigger_data->mode_rng) {
257 	if (trigger_data->mode_rx || trigger_data->mode_tx) {
260 		ret = tty_get_icount(trigger_data->tty, &icount);
264 		if (trigger_data->mode_tx && (icount.tx != trigger_data->tx)) {
265 			trigger_data->tx = icount.tx;
270 		if (trigger_data->mode_rx && (icount.rx != trigger_data->rx)) {
271 			trigger_data->rx = icount.rx;
280 		led_blink_set_oneshot(trigger_data->led_cdev, &interval,
284 		led_set_brightness(trigger_data->led_cdev,
285 				trigger_data->led_cdev->blink_brightness);
290 		led_set_brightness(trigger_data->led_cdev, LED_OFF);
294 	complete_all(&trigger_data->sysfs);
295 	schedule_delayed_work(&trigger_data->dwork,
313 	struct ledtrig_tty_data *trigger_data;
315 	trigger_data = kzalloc(sizeof(*trigger_data), GFP_KERNEL);
316 	if (!trigger_data)
320 	trigger_data->mode_rx = true;
321 	trigger_data->mode_tx = true;
323 	led_set_trigger_data(led_cdev, trigger_data);
325 	INIT_DELAYED_WORK(&trigger_data->dwork, ledtrig_tty_work);
326 	trigger_data->led_cdev = led_cdev;
327 	init_completion(&trigger_data->sysfs);
329 	schedule_delayed_work(&trigger_data->dwork, 0);
336 	struct ledtrig_tty_data *trigger_data = led_get_trigger_data(led_cdev);
338 	cancel_delayed_work_sync(&trigger_data->dwork);
340 	kfree(trigger_data->ttyname);
341 	tty_kref_put(trigger_data->tty);
342 	trigger_data->tty = NULL;
344 	kfree(trigger_data);