1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * Driver model for leds and led triggers
11 #include <dt-bindings/leds/common.h>
41 	 * with in-driver hard-coded LED names used as a fallback when
54 	 * only LEDs exposed by drivers of hot-pluggable devices should
100 	 * Set LED brightness level immediately - it can block the caller for
121 			   struct led_pattern *pattern, u32 len, int repeat);
128 	const char		*default_trigger;	/* Trigger to use */
140 	/* Protects the trigger data below */
143 	struct led_trigger	*trigger;  member
146 	/* true if activated - deactivate routine uses it to do cleanup */
149 	/* LEDs that have private triggers have this set */
163  * led_classdev_register_ext - register a new object of LED class with
178  * led_classdev_register - register a new object of LED class
214  * led_blink_set - set blinking with software fallback
225  * led_cdev->brightness_set() will not stop the blinking,
231  * led_blink_set_oneshot - do a oneshot software blink
238  * delay_off time, ignoring the request if another one-shot
242  * delay_on and leave the led on after the on-off cycle.
248  * led_set_brightness - set LED brightness
260  * led_set_brightness_sync - set LED brightness synchronously
274  * led_update_brightness - update LED brightness
277  * Get an LED's current brightness and update led_cdev->brightness
285  * led_get_default_pattern - return default pattern
287  * @led_cdev: the LED to get default pattern for
291  * Return:    Allocated array of integers with default pattern from device tree
297  * led_sysfs_disable - disable LED sysfs interface
305  * led_sysfs_enable - enable LED sysfs interface
313  * led_compose_name - compose LED class device name
328  * led_sysfs_is_disabled - check if LED sysfs interface is disabled
335 	return led_cdev->flags & LED_SYSFS_DISABLE;  in led_sysfs_is_disabled()
350 	/* Trigger Properties */
355 	/* LED-private triggers have this set */
358 	/* LEDs under control by this trigger (for simple triggers) */
362 	/* Link to next registered trigger */
378 int led_trigger_register(struct led_trigger *trigger);
379 void led_trigger_unregister(struct led_trigger *trigger);
381 				     struct led_trigger *trigger);
384 				struct led_trigger **trigger);
385 void led_trigger_unregister_simple(struct led_trigger *trigger);
386 void led_trigger_event(struct led_trigger *trigger,  enum led_brightness event);
387 void led_trigger_blink(struct led_trigger *trigger, unsigned long *delay_on,
389 void led_trigger_blink_oneshot(struct led_trigger *trigger,
394 int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
400 	led_cdev->trigger_data = trigger_data;  in led_set_trigger_data()
405 	return led_cdev->trigger_data;  in led_get_trigger_data()
409  * led_trigger_rename_static - rename a trigger
410  * @name: the new trigger name
411  * @trig: the LED trigger to rename
413  * Change a LED trigger name by copying the string passed in
414  * name into current trigger name, which MUST be large
431 /* Trigger has no members */
434 /* Trigger inline empty functions */
436 					struct led_trigger **trigger) {}  in led_trigger_register_simple()  argument
437 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}  in led_trigger_unregister_simple()  argument
438 static inline void led_trigger_event(struct led_trigger *trigger,  in led_trigger_event()  argument
440 static inline void led_trigger_blink(struct led_trigger *trigger,  in led_trigger_blink()  argument
443 static inline void led_trigger_blink_oneshot(struct led_trigger *trigger,  in led_trigger_blink_oneshot()  argument
449 				  struct led_trigger *trigger)  in led_trigger_set()  argument
463 /* Trigger specific functions */
495 	struct led_info	*leds;  member
512 /* For the leds-gpio driver */
531 	const struct gpio_led *leds;  member
575  * struct led_pattern - pattern interval settings
576  * @delta_t: pattern interval delay, in milliseconds
577  * @brightness: pattern interval brightness