26 static void led_update_brightness(struct led_classdev *led_cdev)  in led_update_brightness()  argument
28 	if (led_cdev->brightness_get)  in led_update_brightness()
29 		led_cdev->brightness = led_cdev->brightness_get(led_cdev);  in led_update_brightness()
35 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_brightness_show()  local
38 	led_update_brightness(led_cdev);  in led_brightness_show()
40 	return sprintf(buf, "%u\n", led_cdev->brightness);  in led_brightness_show()
46 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_brightness_store()  local
55 		led_trigger_remove(led_cdev);  in led_brightness_store()
56 	__led_set_brightness(led_cdev, state);  in led_brightness_store()
64 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_max_brightness_show()  local
66 	return sprintf(buf, "%u\n", led_cdev->max_brightness);  in led_max_brightness_show()
80 	struct led_classdev *led_cdev = (void *)data;  in led_timer_function()  local
84 	if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {  in led_timer_function()
85 		__led_set_brightness(led_cdev, LED_OFF);  in led_timer_function()
89 	if (led_cdev->flags & LED_BLINK_ONESHOT_STOP) {  in led_timer_function()
90 		led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;  in led_timer_function()
94 	brightness = led_get_brightness(led_cdev);  in led_timer_function()
97 		brightness = led_cdev->blink_brightness;  in led_timer_function()
98 		delay = led_cdev->blink_delay_on;  in led_timer_function()
103 		led_cdev->blink_brightness = brightness;  in led_timer_function()
105 		delay = led_cdev->blink_delay_off;  in led_timer_function()
108 	__led_set_brightness(led_cdev, brightness);  in led_timer_function()
114 	if (led_cdev->flags & LED_BLINK_ONESHOT) {  in led_timer_function()
115 		if (led_cdev->flags & LED_BLINK_INVERT) {  in led_timer_function()
117 				led_cdev->flags |= LED_BLINK_ONESHOT_STOP;  in led_timer_function()
120 				led_cdev->flags |= LED_BLINK_ONESHOT_STOP;  in led_timer_function()
124 	mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));  in led_timer_function()
129 	struct led_classdev *led_cdev =  in set_brightness_delayed()  local
132 	led_stop_software_blink(led_cdev);  in set_brightness_delayed()
134 	__led_set_brightness(led_cdev, led_cdev->delayed_set_value);  in set_brightness_delayed()
141 void led_classdev_suspend(struct led_classdev *led_cdev)  in led_classdev_suspend()  argument
143 	led_cdev->flags |= LED_SUSPENDED;  in led_classdev_suspend()
144 	led_cdev->brightness_set(led_cdev, 0);  in led_classdev_suspend()
152 void led_classdev_resume(struct led_classdev *led_cdev)  in led_classdev_resume()  argument
154 	led_cdev->brightness_set(led_cdev, led_cdev->brightness);  in led_classdev_resume()
155 	led_cdev->flags &= ~LED_SUSPENDED;  in led_classdev_resume()
161 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_suspend()  local
163 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_suspend()
164 		led_classdev_suspend(led_cdev);  in led_suspend()
171 	struct led_classdev *led_cdev = dev_get_drvdata(dev);  in led_resume()  local
173 	if (led_cdev->flags & LED_CORE_SUSPENDRESUME)  in led_resume()
174 		led_classdev_resume(led_cdev);  in led_resume()
184 int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)  in led_classdev_register()  argument
186 	led_cdev->dev = device_create(leds_class, parent, 0, led_cdev,  in led_classdev_register()
187 				      "%s", led_cdev->name);  in led_classdev_register()
188 	if (IS_ERR(led_cdev->dev))  in led_classdev_register()
189 		return PTR_ERR(led_cdev->dev);  in led_classdev_register()
192 	init_rwsem(&led_cdev->trigger_lock);  in led_classdev_register()
196 	list_add_tail(&led_cdev->node, &leds_list);  in led_classdev_register()
199 	if (!led_cdev->max_brightness)  in led_classdev_register()
200 		led_cdev->max_brightness = LED_FULL;  in led_classdev_register()
202 	led_update_brightness(led_cdev);  in led_classdev_register()
204 	INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);  in led_classdev_register()
206 	init_timer(&led_cdev->blink_timer);  in led_classdev_register()
207 	led_cdev->blink_timer.function = led_timer_function;  in led_classdev_register()
208 	led_cdev->blink_timer.data = (unsigned long)led_cdev;  in led_classdev_register()
211 	led_trigger_set_default(led_cdev);  in led_classdev_register()
215 			led_cdev->name);  in led_classdev_register()
227 void led_classdev_unregister(struct led_classdev *led_cdev)  in led_classdev_unregister()  argument
230 	down_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
231 	if (led_cdev->trigger)  in led_classdev_unregister()
232 		led_trigger_set(led_cdev, NULL);  in led_classdev_unregister()
233 	up_write(&led_cdev->trigger_lock);  in led_classdev_unregister()
236 	cancel_work_sync(&led_cdev->set_brightness_work);  in led_classdev_unregister()
239 	led_stop_software_blink(led_cdev);  in led_classdev_unregister()
240 	led_set_brightness(led_cdev, LED_OFF);  in led_classdev_unregister()
242 	device_unregister(led_cdev->dev);  in led_classdev_unregister()
245 	list_del(&led_cdev->node);  in led_classdev_unregister()