diff options
Diffstat (limited to 'include/linux/leds.h')
| -rw-r--r-- | include/linux/leds.h | 77 |
1 files changed, 62 insertions, 15 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h index db6b114bb3d9..b3f0aa081064 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -107,6 +107,8 @@ struct led_classdev { #define LED_BRIGHT_HW_CHANGED BIT(21) #define LED_RETAIN_AT_SHUTDOWN BIT(22) #define LED_INIT_DEFAULT_TRIGGER BIT(23) +#define LED_REJECT_NAME_CONFLICT BIT(24) +#define LED_MULTI_COLOR BIT(25) /* set_brightness_work / blink_timer flags, atomic, private. */ unsigned long work_flags; @@ -169,6 +171,7 @@ struct led_classdev { int new_blink_brightness; void (*flash_resume)(struct led_classdev *led_cdev); + struct workqueue_struct *wq; /* LED workqueue */ struct work_struct set_brightness_work; int delayed_set_value; unsigned long delayed_delay_on; @@ -236,7 +239,7 @@ struct led_classdev { struct kernfs_node *brightness_hw_changed_kn; #endif - /* Ensures consistent access to the LED Flash Class device */ + /* Ensures consistent access to the LED class device */ struct mutex led_access; }; @@ -374,6 +377,25 @@ void led_set_brightness(struct led_classdev *led_cdev, unsigned int brightness); int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value); /** + * led_mc_set_brightness - set mc LED color intensity values and brightness + * @led_cdev: the LED to set + * @intensity_value: array of per color intensity values to set + * @num_colors: amount of entries in intensity_value array + * @brightness: the brightness to set the LED to + * + * Set a multi-color LED's per color intensity values and brightness. + * If necessary, this cancels the software blink timer. This function is + * guaranteed not to sleep. + * + * Calling this function on a non multi-color led_classdev or with the wrong + * num_colors value is an error. In this case an error will be logged once + * and the call will do nothing. + */ +void led_mc_set_brightness(struct led_classdev *led_cdev, + unsigned int *intensity_value, unsigned int num_colors, + unsigned int brightness); + +/** * led_update_brightness - update LED brightness * @led_cdev: the LED to query * @@ -428,6 +450,16 @@ int led_compose_name(struct device *dev, struct led_init_data *init_data, char *led_classdev_name); /** + * led_get_color_name - get string representation of color ID + * @color_id: The LED_COLOR_ID_* constant + * + * Get the string name of a LED_COLOR_ID_* constant. + * + * Returns: A string constant or NULL on an invalid ID. + */ +const char *led_get_color_name(u8 color_id); + +/** * led_sysfs_is_disabled - check if LED sysfs interface is disabled * @led_cdev: the LED to query * @@ -455,6 +487,9 @@ struct led_trigger { int (*activate)(struct led_classdev *led_cdev); void (*deactivate)(struct led_classdev *led_cdev); + /* Brightness set by led_trigger_event */ + enum led_brightness brightness; + /* LED-private triggers have this set */ struct led_hw_trigger_type *trigger_type; @@ -487,6 +522,9 @@ void led_trigger_register_simple(const char *name, struct led_trigger **trigger); void led_trigger_unregister_simple(struct led_trigger *trigger); void led_trigger_event(struct led_trigger *trigger, enum led_brightness event); +void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness); void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on, unsigned long delay_off); void led_trigger_blink_oneshot(struct led_trigger *trigger, @@ -508,6 +546,12 @@ static inline void *led_get_trigger_data(struct led_classdev *led_cdev) return led_cdev->trigger_data; } +static inline enum led_brightness +led_trigger_get_brightness(const struct led_trigger *trigger) +{ + return trigger ? trigger->brightness : LED_OFF; +} + #define module_led_trigger(__led_trigger) \ module_driver(__led_trigger, led_trigger_register, \ led_trigger_unregister) @@ -523,6 +567,9 @@ static inline void led_trigger_register_simple(const char *name, static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {} static inline void led_trigger_event(struct led_trigger *trigger, enum led_brightness event) {} +static inline void led_mc_trigger_event(struct led_trigger *trig, + unsigned int *intensity_value, unsigned int num_colors, + enum led_brightness brightness) {} static inline void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on, unsigned long delay_off) {} @@ -544,6 +591,12 @@ static inline void *led_get_trigger_data(struct led_classdev *led_cdev) return NULL; } +static inline enum led_brightness +led_trigger_get_brightness(const struct led_trigger *trigger) +{ + return LED_OFF; +} + #endif /* CONFIG_LEDS_TRIGGERS */ /* Trigger specific enum */ @@ -559,6 +612,8 @@ enum led_trigger_netdev_modes { TRIGGER_NETDEV_FULL_DUPLEX, TRIGGER_NETDEV_TX, TRIGGER_NETDEV_RX, + TRIGGER_NETDEV_TX_ERR, + TRIGGER_NETDEV_RX_ERR, /* Keep last */ __TRIGGER_NETDEV_MAX, @@ -585,6 +640,12 @@ static inline void ledtrig_flash_ctrl(bool on) {} static inline void ledtrig_torch_ctrl(bool on) {} #endif +#if IS_REACHABLE(CONFIG_LEDS_TRIGGER_BACKLIGHT) +void ledtrig_backlight_blank(bool blank); +#else +static inline void ledtrig_backlight_blank(bool blank) {} +#endif + /* * Generic LED platform data for describing LED names and default triggers. */ @@ -690,18 +751,4 @@ enum led_audio { NUM_AUDIO_LEDS }; -#if IS_ENABLED(CONFIG_LEDS_TRIGGER_AUDIO) -enum led_brightness ledtrig_audio_get(enum led_audio type); -void ledtrig_audio_set(enum led_audio type, enum led_brightness state); -#else -static inline enum led_brightness ledtrig_audio_get(enum led_audio type) -{ - return LED_OFF; -} -static inline void ledtrig_audio_set(enum led_audio type, - enum led_brightness state) -{ -} -#endif - #endif /* __LINUX_LEDS_H_INCLUDED */ |