110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* LED Multicolor class interface
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* Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/
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*/
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#ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED
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#define _LINUX_MULTICOLOR_LEDS_H_INCLUDED
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#include <linux/leds.h>
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#include <dt-bindings/leds/common.h>
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struct mc_subled {
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unsigned int color_index;
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unsigned int brightness;
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unsigned int intensity;
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unsigned int channel;
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};
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struct led_classdev_mc {
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/* led class device */
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struct led_classdev led_cdev;
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unsigned int num_colors;
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struct mc_subled *subled_info;
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};
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static inline struct led_classdev_mc *lcdev_to_mccdev(
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struct led_classdev *led_cdev)
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{
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return container_of(led_cdev, struct led_classdev_mc, led_cdev);
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}
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#if IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR)
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/**
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* led_classdev_multicolor_register_ext - register a new object of led_classdev
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* class with support for multicolor LEDs
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* @parent: the multicolor LED to register
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* @mcled_cdev: the led_classdev_mc structure for this device
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* @init_data: the LED class multicolor device initialization data
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*
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* Returns: 0 on success or negative error value on failure
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*/
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int led_classdev_multicolor_register_ext(struct device *parent,
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struct led_classdev_mc *mcled_cdev,
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struct led_init_data *init_data);
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/**
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* led_classdev_multicolor_unregister - unregisters an object of led_classdev
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* class with support for multicolor LEDs
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* @mcled_cdev: the multicolor LED to unregister
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*
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* Unregister a previously registered via led_classdev_multicolor_register
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* object
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*/
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void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev);
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/* Calculate brightness for the monochrome LED cluster */
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int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
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enum led_brightness brightness);
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int devm_led_classdev_multicolor_register_ext(struct device *parent,
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struct led_classdev_mc *mcled_cdev,
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struct led_init_data *init_data);
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void devm_led_classdev_multicolor_unregister(struct device *parent,
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struct led_classdev_mc *mcled_cdev);
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#else
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static inline int led_classdev_multicolor_register_ext(struct device *parent,
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struct led_classdev_mc *mcled_cdev,
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struct led_init_data *init_data)
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{
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return 0;
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}
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static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {};
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static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
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enum led_brightness brightness)
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{
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return 0;
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}
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static inline int devm_led_classdev_multicolor_register_ext(struct device *parent,
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struct led_classdev_mc *mcled_cdev,
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struct led_init_data *init_data)
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{
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return 0;
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}
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static inline void devm_led_classdev_multicolor_unregister(struct device *parent,
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struct led_classdev_mc *mcled_cdev)
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{};
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#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */
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static inline int led_classdev_multicolor_register(struct device *parent,
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struct led_classdev_mc *mcled_cdev)
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{
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return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
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}
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static inline int devm_led_classdev_multicolor_register(struct device *parent,
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struct led_classdev_mc *mcled_cdev)
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{
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return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev,
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NULL);
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}
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#endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */
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