1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include <dt-bindings/leds/common.h>
47  * struct led_lookup_data - represents a single LED lookup entry
65 	 * default <color:function> tuple, for backward compatibility
66 	 * with in-driver hard-coded LED names used as a fallback when
79 	 * only LEDs exposed by drivers of hot-pluggable devices should
122 	/* Brightness off also disables hw-blinking so it is a separate action */
134 	 * Set LED brightness level immediately - it can block the caller for
144 	 * and if both are zero then a sensible default should be chosen.
166 	const char		*default_trigger;	/* Trigger to use */
180 	/* Protects the trigger data below */
183 	struct led_trigger	*trigger;  member
186 	/* true if activated - deactivate routine uses it to do cleanup */
192 	/* Unique trigger name supported by LED set in hw control mode */
196 	 * defined supported trigger to setup the LED to hw control mode.
198 	 * Return 0 on success. Return -EOPNOTSUPP when the passed flags are not
207 	 * from the supported trigger and setup the LED to be driven by hardware
208 	 * following the requested mode from the trigger flags.
219 	 * Trigger can use this to get the initial state of a LED already set in
224 	 * may be in a not supported initial state by the attached LED trigger.
246  * led_classdev_register_ext - register a new object of LED class with
261  * led_classdev_register - register a new object of LED class
304  * led_blink_set - set blinking with software fallback
317  * led_cdev->brightness_set() will not stop the blinking,
324  * led_blink_set_nosleep - set blinking, guaranteed to not sleep
336  * led_blink_set_oneshot - do a oneshot software blink
343  * delay_off time, ignoring the request if another one-shot
347  * delay_on and leave the led on after the on-off cycle.
355  * led_set_brightness - set LED brightness
366  * led_set_brightness_sync - set LED brightness synchronously
379  * led_mc_set_brightness - set mc LED color intensity values and brightness
385  * Set a multi-color LED's per color intensity values and brightness.
389  * Calling this function on a non multi-color led_classdev or with the wrong
398  * led_update_brightness - update LED brightness
401  * Get an LED's current brightness and update led_cdev->brightness
409  * led_get_default_pattern - return default pattern
411  * @led_cdev: the LED to get default pattern for
415  * Return:    Allocated array of integers with default pattern from device tree
421  * led_sysfs_disable - disable LED sysfs interface
429  * led_sysfs_enable - enable LED sysfs interface
437  * led_compose_name - compose LED class device name
452  * led_get_color_name - get string representation of color ID
462  * led_sysfs_is_disabled - check if LED sysfs interface is disabled
469 	return led_cdev->flags & LED_SYSFS_DISABLE;  in led_sysfs_is_disabled()
484 	/* Trigger Properties */
492 	/* LED-private triggers have this set */
495 	/* LEDs under control by this trigger (for simple triggers) */
499 	/* Link to next registered trigger */
515 int led_trigger_register(struct led_trigger *trigger);
516 void led_trigger_unregister(struct led_trigger *trigger);
518 				     struct led_trigger *trigger);
521 				struct led_trigger **trigger);
522 void led_trigger_unregister_simple(struct led_trigger *trigger);
523 void led_trigger_event(struct led_trigger *trigger,  enum led_brightness event);
527 void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on,
529 void led_trigger_blink_oneshot(struct led_trigger *trigger,
534 int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
540 	led_cdev->trigger_data = trigger_data;  in led_set_trigger_data()
545 	return led_cdev->trigger_data;  in led_get_trigger_data()
549 led_trigger_get_brightness(const struct led_trigger *trigger)  in led_trigger_get_brightness()  argument
551 	return trigger ? trigger->brightness : LED_OFF;  in led_trigger_get_brightness()
560 /* Trigger has no members */
563 /* Trigger inline empty functions */
565 					struct led_trigger **trigger) {}  in led_trigger_register_simple()  argument
566 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}  in led_trigger_unregister_simple()  argument
567 static inline void led_trigger_event(struct led_trigger *trigger,  in led_trigger_event()  argument
572 static inline void led_trigger_blink(struct led_trigger *trigger,  in led_trigger_blink()  argument
575 static inline void led_trigger_blink_oneshot(struct led_trigger *trigger,  in led_trigger_blink_oneshot()  argument
581 				  struct led_trigger *trigger)  in led_trigger_set()  argument
594 led_trigger_get_brightness(const struct led_trigger *trigger)  in led_trigger_get_brightness()  argument
601 /* Trigger specific enum */
621 /* Trigger specific functions */
643  * Generic LED platform data for describing LED names and default triggers.
669 /* For the leds-gpio driver */
732  * struct led_pattern - pattern interval settings