19 static void ledtrig_tty_restart(struct ledtrig_tty_data *trigger_data)  in ledtrig_tty_restart()  argument
21 	schedule_delayed_work(&trigger_data->dwork, 0);  in ledtrig_tty_restart()
27 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);  in ttyname_show()  local
30 	mutex_lock(&trigger_data->mutex);  in ttyname_show()
32 	if (trigger_data->ttyname)  in ttyname_show()
33 		len = sprintf(buf, "%s\n", trigger_data->ttyname);  in ttyname_show()
35 	mutex_unlock(&trigger_data->mutex);  in ttyname_show()
44 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);  in ttyname_store()  local
60 	mutex_lock(&trigger_data->mutex);  in ttyname_store()
62 	running = trigger_data->ttyname != NULL;  in ttyname_store()
64 	kfree(trigger_data->ttyname);  in ttyname_store()
65 	tty_kref_put(trigger_data->tty);  in ttyname_store()
66 	trigger_data->tty = NULL;  in ttyname_store()
68 	trigger_data->ttyname = ttyname;  in ttyname_store()
70 	mutex_unlock(&trigger_data->mutex);  in ttyname_store()
73 		ledtrig_tty_restart(trigger_data);  in ttyname_store()
81 	struct ledtrig_tty_data *trigger_data =  in ledtrig_tty_work()  local
86 	mutex_lock(&trigger_data->mutex);  in ledtrig_tty_work()
88 	if (!trigger_data->ttyname) {  in ledtrig_tty_work()
90 		mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
95 	if (!trigger_data->tty) {  in ledtrig_tty_work()
100 		ret = tty_dev_name_to_number(trigger_data->ttyname, &devno);  in ledtrig_tty_work()
113 		trigger_data->tty = tty;  in ledtrig_tty_work()
116 	ret = tty_get_icount(trigger_data->tty, &icount);  in ledtrig_tty_work()
118 		dev_info(trigger_data->tty->dev, "Failed to get icount, stopped polling\n");  in ledtrig_tty_work()
119 		mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
123 	if (icount.rx != trigger_data->rx ||  in ledtrig_tty_work()
124 	    icount.tx != trigger_data->tx) {  in ledtrig_tty_work()
125 		led_set_brightness_sync(trigger_data->led_cdev, LED_ON);  in ledtrig_tty_work()
127 		trigger_data->rx = icount.rx;  in ledtrig_tty_work()
128 		trigger_data->tx = icount.tx;  in ledtrig_tty_work()
130 		led_set_brightness_sync(trigger_data->led_cdev, LED_OFF);  in ledtrig_tty_work()
134 	mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
135 	schedule_delayed_work(&trigger_data->dwork, msecs_to_jiffies(100));  in ledtrig_tty_work()
146 	struct ledtrig_tty_data *trigger_data;  in ledtrig_tty_activate()  local
148 	trigger_data = kzalloc(sizeof(*trigger_data), GFP_KERNEL);  in ledtrig_tty_activate()
149 	if (!trigger_data)  in ledtrig_tty_activate()
152 	led_set_trigger_data(led_cdev, trigger_data);  in ledtrig_tty_activate()
154 	INIT_DELAYED_WORK(&trigger_data->dwork, ledtrig_tty_work);  in ledtrig_tty_activate()
155 	trigger_data->led_cdev = led_cdev;  in ledtrig_tty_activate()
156 	mutex_init(&trigger_data->mutex);  in ledtrig_tty_activate()
163 	struct ledtrig_tty_data *trigger_data = led_get_trigger_data(led_cdev);  in ledtrig_tty_deactivate()  local
165 	cancel_delayed_work_sync(&trigger_data->dwork);  in ledtrig_tty_deactivate()
167 	kfree(trigger_data);  in ledtrig_tty_deactivate()