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 */
181 	/* Protects the trigger data below */
184 	struct led_trigger	*trigger;  member
187 	/* true if activated - deactivate routine uses it to do cleanup */
193 	/* Unique trigger name supported by LED set in hw control mode */
197 	 * defined supported trigger to setup the LED to hw control mode.
199 	 * Return 0 on success. Return -EOPNOTSUPP when the passed flags are not
208 	 * from the supported trigger and setup the LED to be driven by hardware
209 	 * following the requested mode from the trigger flags.
220 	 * Trigger can use this to get the initial state of a LED already set in
225 	 * may be in a not supported initial state by the attached LED trigger.
247  * led_classdev_register_ext - register a new object of LED class with
262  * led_classdev_register - register a new object of LED class
305  * led_blink_set - set blinking with software fallback
318  * led_cdev->brightness_set() will not stop the blinking,
325  * led_blink_set_nosleep - set blinking, guaranteed to not sleep
337  * led_blink_set_oneshot - do a oneshot software blink
344  * delay_off time, ignoring the request if another one-shot
348  * delay_on and leave the led on after the on-off cycle.
356  * led_set_brightness - set LED brightness
367  * led_set_brightness_sync - set LED brightness synchronously
380  * led_mc_set_brightness - set mc LED color intensity values and brightness
386  * Set a multi-color LED's per color intensity values and brightness.
390  * Calling this function on a non multi-color led_classdev or with the wrong
399  * led_update_brightness - update LED brightness
402  * Get an LED's current brightness and update led_cdev->brightness
410  * led_get_default_pattern - return default pattern
412  * @led_cdev: the LED to get default pattern for
416  * Return:    Allocated array of integers with default pattern from device tree
422  * led_sysfs_disable - disable LED sysfs interface
430  * led_sysfs_enable - enable LED sysfs interface
438  * led_compose_name - compose LED class device name
453  * led_get_color_name - get string representation of color ID
463  * led_sysfs_is_disabled - check if LED sysfs interface is disabled
470 	return led_cdev->flags & LED_SYSFS_DISABLE;  in led_sysfs_is_disabled()
485 	/* Trigger Properties */
493 	/* LED-private triggers have this set */
496 	/* LEDs under control by this trigger (for simple triggers) */
500 	/* Link to next registered trigger */
516 int led_trigger_register(struct led_trigger *trigger);
517 void led_trigger_unregister(struct led_trigger *trigger);
519 				     struct led_trigger *trigger);
522 				struct led_trigger **trigger);
523 void led_trigger_unregister_simple(struct led_trigger *trigger);
524 void led_trigger_event(struct led_trigger *trigger,  enum led_brightness event);
528 void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on,
530 void led_trigger_blink_oneshot(struct led_trigger *trigger,
535 int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
541 	led_cdev->trigger_data = trigger_data;  in led_set_trigger_data()
546 	return led_cdev->trigger_data;  in led_get_trigger_data()
550 led_trigger_get_brightness(const struct led_trigger *trigger)  in led_trigger_get_brightness()  argument
552 	return trigger ? trigger->brightness : LED_OFF;  in led_trigger_get_brightness()
561 /* Trigger has no members */
564 /* Trigger inline empty functions */
566 					struct led_trigger **trigger) {}  in led_trigger_register_simple()  argument
567 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}  in led_trigger_unregister_simple()  argument
568 static inline void led_trigger_event(struct led_trigger *trigger,  in led_trigger_event()  argument
573 static inline void led_trigger_blink(struct led_trigger *trigger,  in led_trigger_blink()  argument
576 static inline void led_trigger_blink_oneshot(struct led_trigger *trigger,  in led_trigger_blink_oneshot()  argument
582 				  struct led_trigger *trigger)  in led_trigger_set()  argument
595 led_trigger_get_brightness(const struct led_trigger *trigger)  in led_trigger_get_brightness()  argument
602 /* Trigger specific enum */
622 /* Trigger specific functions */
644  * Generic LED platform data for describing LED names and default triggers.
670 /* For the leds-gpio driver */
733  * struct led_pattern - pattern interval settings