42 static int __led_set_brightness(struct led_classdev *led_cdev, unsigned int value)  in __led_set_brightness()  argument
44 	if (!led_cdev->brightness_set)  in __led_set_brightness()
47 	led_cdev->brightness_set(led_cdev, value);  in __led_set_brightness()
52 static int __led_set_brightness_blocking(struct led_classdev *led_cdev, unsigned int value)  in __led_set_brightness_blocking()  argument
54 	if (!led_cdev->brightness_set_blocking)  in __led_set_brightness_blocking()
57 	return led_cdev->brightness_set_blocking(led_cdev, value);  in __led_set_brightness_blocking()
62 	struct led_classdev *led_cdev = from_timer(led_cdev, t, blink_timer);  in led_timer_function()  local
66 	if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {  in led_timer_function()
67 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_timer_function()
68 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
73 			       &led_cdev->work_flags)) {  in led_timer_function()
74 		clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_timer_function()
78 	brightness = led_get_brightness(led_cdev);  in led_timer_function()
82 					&led_cdev->work_flags))  in led_timer_function()
83 			brightness = led_cdev->new_blink_brightness;  in led_timer_function()
85 			brightness = led_cdev->blink_brightness;  in led_timer_function()
86 		delay = led_cdev->blink_delay_on;  in led_timer_function()
91 		led_cdev->blink_brightness = brightness;  in led_timer_function()
93 		delay = led_cdev->blink_delay_off;  in led_timer_function()
96 	led_set_brightness_nosleep(led_cdev, brightness);  in led_timer_function()
102 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags)) {  in led_timer_function()
103 		if (test_bit(LED_BLINK_INVERT, &led_cdev->work_flags)) {  in led_timer_function()
106 					&led_cdev->work_flags);  in led_timer_function()
110 					&led_cdev->work_flags);  in led_timer_function()
114 	mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));  in led_timer_function()
117 static void set_brightness_delayed_set_brightness(struct led_classdev *led_cdev,  in set_brightness_delayed_set_brightness()  argument
122 	ret = __led_set_brightness(led_cdev, value);  in set_brightness_delayed_set_brightness()
124 		ret = __led_set_brightness_blocking(led_cdev, value);  in set_brightness_delayed_set_brightness()
127 	    !(ret == -ENODEV && (led_cdev->flags & LED_UNREGISTERING) &&  in set_brightness_delayed_set_brightness()
128 	    (led_cdev->flags & LED_HW_PLUGGABLE)))  in set_brightness_delayed_set_brightness()
129 		dev_err(led_cdev->dev,  in set_brightness_delayed_set_brightness()
135 	struct led_classdev *led_cdev =  in set_brightness_delayed()  local
138 	if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) {  in set_brightness_delayed()
139 		led_stop_software_blink(led_cdev);  in set_brightness_delayed()
140 		set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags);  in set_brightness_delayed()
150 	if (test_and_clear_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags))  in set_brightness_delayed()
151 		set_brightness_delayed_set_brightness(led_cdev, LED_OFF);  in set_brightness_delayed()
153 	if (test_and_clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags))  in set_brightness_delayed()
154 		set_brightness_delayed_set_brightness(led_cdev, led_cdev->delayed_set_value);  in set_brightness_delayed()
156 	if (test_and_clear_bit(LED_SET_BLINK, &led_cdev->work_flags)) {  in set_brightness_delayed()
157 		unsigned long delay_on = led_cdev->delayed_delay_on;  in set_brightness_delayed()
158 		unsigned long delay_off = led_cdev->delayed_delay_off;  in set_brightness_delayed()
160 		led_blink_set(led_cdev, &delay_on, &delay_off);  in set_brightness_delayed()
164 static void led_set_software_blink(struct led_classdev *led_cdev,  in led_set_software_blink()  argument
170 	current_brightness = led_get_brightness(led_cdev);  in led_set_software_blink()
172 		led_cdev->blink_brightness = current_brightness;  in led_set_software_blink()
173 	if (!led_cdev->blink_brightness)  in led_set_software_blink()
174 		led_cdev->blink_brightness = led_cdev->max_brightness;  in led_set_software_blink()
176 	led_cdev->blink_delay_on = delay_on;  in led_set_software_blink()
177 	led_cdev->blink_delay_off = delay_off;  in led_set_software_blink()
181 		led_set_brightness_nosleep(led_cdev, LED_OFF);  in led_set_software_blink()
187 		led_set_brightness_nosleep(led_cdev,  in led_set_software_blink()
188 					   led_cdev->blink_brightness);  in led_set_software_blink()
192 	set_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_set_software_blink()
193 	mod_timer(&led_cdev->blink_timer, jiffies + 1);  in led_set_software_blink()
197 static void led_blink_setup(struct led_classdev *led_cdev,  in led_blink_setup()  argument
201 	if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_setup()
202 	    led_cdev->blink_set &&  in led_blink_setup()
203 	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))  in led_blink_setup()
210 	led_set_software_blink(led_cdev, *delay_on, *delay_off);  in led_blink_setup()
213 void led_init_core(struct led_classdev *led_cdev)  in led_init_core()  argument
215 	INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);  in led_init_core()
217 	timer_setup(&led_cdev->blink_timer, led_timer_function, 0);  in led_init_core()
221 void led_blink_set(struct led_classdev *led_cdev,  in led_blink_set()  argument
225 	del_timer_sync(&led_cdev->blink_timer);  in led_blink_set()
227 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_blink_set()
228 	clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set()
229 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set()
231 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set()
235 void led_blink_set_oneshot(struct led_classdev *led_cdev,  in led_blink_set_oneshot()  argument
240 	if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) &&  in led_blink_set_oneshot()
241 	     timer_pending(&led_cdev->blink_timer))  in led_blink_set_oneshot()
244 	set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags);  in led_blink_set_oneshot()
245 	clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags);  in led_blink_set_oneshot()
248 		set_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
250 		clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags);  in led_blink_set_oneshot()
252 	led_blink_setup(led_cdev, delay_on, delay_off);  in led_blink_set_oneshot()
256 void led_blink_set_nosleep(struct led_classdev *led_cdev, unsigned long delay_on,  in led_blink_set_nosleep()  argument
260 	if (led_cdev->blink_set && led_cdev->brightness_set_blocking) {  in led_blink_set_nosleep()
261 		led_cdev->delayed_delay_on = delay_on;  in led_blink_set_nosleep()
262 		led_cdev->delayed_delay_off = delay_off;  in led_blink_set_nosleep()
263 		set_bit(LED_SET_BLINK, &led_cdev->work_flags);  in led_blink_set_nosleep()
264 		schedule_work(&led_cdev->set_brightness_work);  in led_blink_set_nosleep()
268 	led_blink_set(led_cdev, &delay_on, &delay_off);  in led_blink_set_nosleep()
272 void led_stop_software_blink(struct led_classdev *led_cdev)  in led_stop_software_blink()  argument
274 	del_timer_sync(&led_cdev->blink_timer);  in led_stop_software_blink()
275 	led_cdev->blink_delay_on = 0;  in led_stop_software_blink()
276 	led_cdev->blink_delay_off = 0;  in led_stop_software_blink()
277 	clear_bit(LED_BLINK_SW, &led_cdev->work_flags);  in led_stop_software_blink()
281 void led_set_brightness(struct led_classdev *led_cdev, unsigned int brightness)  in led_set_brightness()  argument
287 	if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) {  in led_set_brightness()
294 			set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags);  in led_set_brightness()
295 			schedule_work(&led_cdev->set_brightness_work);  in led_set_brightness()
298 				&led_cdev->work_flags);  in led_set_brightness()
299 			led_cdev->new_blink_brightness = brightness;  in led_set_brightness()
304 	led_set_brightness_nosleep(led_cdev, brightness);  in led_set_brightness()
308 void led_set_brightness_nopm(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_nopm()  argument
311 	if (!__led_set_brightness(led_cdev, value))  in led_set_brightness_nopm()
323 		led_cdev->delayed_set_value = value;  in led_set_brightness_nopm()
324 		set_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags);  in led_set_brightness_nopm()
326 		clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags);  in led_set_brightness_nopm()
327 		clear_bit(LED_SET_BLINK, &led_cdev->work_flags);  in led_set_brightness_nopm()
328 		set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags);  in led_set_brightness_nopm()
331 	schedule_work(&led_cdev->set_brightness_work);  in led_set_brightness_nopm()
335 void led_set_brightness_nosleep(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_nosleep()  argument
337 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_nosleep()
339 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_nosleep()
342 	led_set_brightness_nopm(led_cdev, led_cdev->brightness);  in led_set_brightness_nosleep()
346 int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value)  in led_set_brightness_sync()  argument
348 	if (led_cdev->blink_delay_on || led_cdev->blink_delay_off)  in led_set_brightness_sync()
351 	led_cdev->brightness = min(value, led_cdev->max_brightness);  in led_set_brightness_sync()
353 	if (led_cdev->flags & LED_SUSPENDED)  in led_set_brightness_sync()
356 	return __led_set_brightness_blocking(led_cdev, led_cdev->brightness);  in led_set_brightness_sync()
360 int led_update_brightness(struct led_classdev *led_cdev)  in led_update_brightness()  argument
364 	if (led_cdev->brightness_get) {  in led_update_brightness()
365 		ret = led_cdev->brightness_get(led_cdev);  in led_update_brightness()
367 			led_cdev->brightness = ret;  in led_update_brightness()
376 u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size)  in led_get_default_pattern()  argument
378 	struct fwnode_handle *fwnode = led_cdev->dev->fwnode;  in led_get_default_pattern()
402 void led_sysfs_disable(struct led_classdev *led_cdev)  in led_sysfs_disable()  argument
404 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_disable()
406 	led_cdev->flags |= LED_SYSFS_DISABLE;  in led_sysfs_disable()
411 void led_sysfs_enable(struct led_classdev *led_cdev)  in led_sysfs_enable()  argument
413 	lockdep_assert_held(&led_cdev->led_access);  in led_sysfs_enable()
415 	led_cdev->flags &= ~LED_SYSFS_DISABLE;  in led_sysfs_enable()