21 static void ledtrig_tty_restart(struct ledtrig_tty_data *trigger_data)  in ledtrig_tty_restart()  argument
23 	schedule_delayed_work(&trigger_data->dwork, 0);  in ledtrig_tty_restart()
29 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);  in ttyname_show()  local
32 	mutex_lock(&trigger_data->mutex);  in ttyname_show()
34 	if (trigger_data->ttyname)  in ttyname_show()
35 		len = sprintf(buf, "%s\n", trigger_data->ttyname);  in ttyname_show()
37 	mutex_unlock(&trigger_data->mutex);  in ttyname_show()
46 	struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);  in ttyname_store()  local
62 	mutex_lock(&trigger_data->mutex);  in ttyname_store()
64 	running = trigger_data->ttyname != NULL;  in ttyname_store()
66 	kfree(trigger_data->ttyname);  in ttyname_store()
67 	tty_kref_put(trigger_data->tty);  in ttyname_store()
68 	trigger_data->tty = NULL;  in ttyname_store()
70 	trigger_data->ttyname = ttyname;  in ttyname_store()
72 	mutex_unlock(&trigger_data->mutex);  in ttyname_store()
75 		ledtrig_tty_restart(trigger_data);  in ttyname_store()
83 	struct ledtrig_tty_data *trigger_data =  in ledtrig_tty_work()  local
88 	mutex_lock(&trigger_data->mutex);  in ledtrig_tty_work()
90 	if (!trigger_data->ttyname) {  in ledtrig_tty_work()
92 		mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
97 	if (!trigger_data->tty) {  in ledtrig_tty_work()
102 		ret = tty_dev_name_to_number(trigger_data->ttyname, &devno);  in ledtrig_tty_work()
115 		trigger_data->tty = tty;  in ledtrig_tty_work()
118 	ret = tty_get_icount(trigger_data->tty, &icount);  in ledtrig_tty_work()
120 		dev_info(trigger_data->tty->dev, "Failed to get icount, stopped polling\n");  in ledtrig_tty_work()
121 		mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
125 	if (icount.rx != trigger_data->rx ||  in ledtrig_tty_work()
126 	    icount.tx != trigger_data->tx) {  in ledtrig_tty_work()
129 		led_blink_set_oneshot(trigger_data->led_cdev, &interval,  in ledtrig_tty_work()
132 		trigger_data->rx = icount.rx;  in ledtrig_tty_work()
133 		trigger_data->tx = icount.tx;  in ledtrig_tty_work()
137 	mutex_unlock(&trigger_data->mutex);  in ledtrig_tty_work()
138 	schedule_delayed_work(&trigger_data->dwork,  in ledtrig_tty_work()
150 	struct ledtrig_tty_data *trigger_data;  in ledtrig_tty_activate()  local
152 	trigger_data = kzalloc(sizeof(*trigger_data), GFP_KERNEL);  in ledtrig_tty_activate()
153 	if (!trigger_data)  in ledtrig_tty_activate()
156 	led_set_trigger_data(led_cdev, trigger_data);  in ledtrig_tty_activate()
158 	INIT_DELAYED_WORK(&trigger_data->dwork, ledtrig_tty_work);  in ledtrig_tty_activate()
159 	trigger_data->led_cdev = led_cdev;  in ledtrig_tty_activate()
160 	mutex_init(&trigger_data->mutex);  in ledtrig_tty_activate()
167 	struct ledtrig_tty_data *trigger_data = led_get_trigger_data(led_cdev);  in ledtrig_tty_deactivate()  local
169 	cancel_delayed_work_sync(&trigger_data->dwork);  in ledtrig_tty_deactivate()
171 	kfree(trigger_data->ttyname);  in ledtrig_tty_deactivate()
172 	tty_kref_put(trigger_data->tty);  in ledtrig_tty_deactivate()
173 	trigger_data->tty = NULL;  in ledtrig_tty_deactivate()
175 	kfree(trigger_data);  in ledtrig_tty_deactivate()