projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 55d5d3b4 DM |
1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* LED Multicolor class interface | |
| 3 | * Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/ | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED | |
| 7 | #define _LINUX_MULTICOLOR_LEDS_H_INCLUDED | |
| 8 | ||
| 9 | #include <linux/leds.h> | |
| 10 | #include <dt-bindings/leds/common.h> | |
| 11 | ||
| 12 | struct mc_subled { | |
| 13 | unsigned int color_index; | |
| 14 | unsigned int brightness; | |
| 15 | unsigned int intensity; | |
| 16 | unsigned int channel; | |
| 17 | }; | |
| 18 | ||
| 19 | struct led_classdev_mc { | |
| 20 | /* led class device */ | |
| 21 | struct led_classdev led_cdev; | |
| 22 | unsigned int num_colors; | |
| 23 | ||
| 24 | struct mc_subled *subled_info; | |
| 25 | }; | |
| 26 | ||
| 27 | static inline struct led_classdev_mc *lcdev_to_mccdev( | |
| 28 | struct led_classdev *led_cdev) | |
| 29 | { | |
| 30 | return container_of(led_cdev, struct led_classdev_mc, led_cdev); | |
| 31 | } | |
| 32 | ||
| 33 | #if IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) | |
| 34 | /** | |
| 35 | * led_classdev_multicolor_register_ext - register a new object of led_classdev | |
| 36 | * class with support for multicolor LEDs | |
| 37 | * @parent: the multicolor LED to register | |
| 38 | * @mcled_cdev: the led_classdev_mc structure for this device | |
| 39 | * @init_data: the LED class multicolor device initialization data | |
| 40 | * | |
| 41 | * Returns: 0 on success or negative error value on failure | |
| 42 | */ | |
| 43 | int led_classdev_multicolor_register_ext(struct device *parent, | |
| 44 | struct led_classdev_mc *mcled_cdev, | |
| 45 | struct led_init_data *init_data); | |
| 46 | ||
| 47 | static inline int led_classdev_multicolor_register(struct device *parent, | |
| 48 | struct led_classdev_mc *mcled_cdev) | |
| 49 | { | |
| 50 | return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL); | |
| 51 | } | |
| 52 | ||
| 53 | /** | |
| 54 | * led_classdev_multicolor_unregister - unregisters an object of led_classdev | |
| 55 | * class with support for multicolor LEDs | |
| 56 | * @mcled_cdev: the multicolor LED to unregister | |
| 57 | * | |
| 58 | * Unregister a previously registered via led_classdev_multicolor_register | |
| 59 | * object | |
| 60 | */ | |
| 61 | void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev); | |
| 62 | ||
| 63 | /* Calculate brightness for the monochrome LED cluster */ | |
| 64 | int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, | |
| 65 | enum led_brightness brightness); | |
| 66 | ||
| 67 | int devm_led_classdev_multicolor_register_ext(struct device *parent, | |
| 68 | struct led_classdev_mc *mcled_cdev, | |
| 69 | struct led_init_data *init_data); | |
| 70 | ||
| 71 | static inline int devm_led_classdev_multicolor_register(struct device *parent, | |
| 72 | struct led_classdev_mc *mcled_cdev) | |
| 73 | { | |
| 74 | return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev, | |
| 75 | NULL); | |
| 76 | } | |
| 77 | ||
| 78 | void devm_led_classdev_multicolor_unregister(struct device *parent, | |
| 79 | struct led_classdev_mc *mcled_cdev); | |
| 80 | #else | |
| 81 | ||
| 82 | static inline int led_classdev_multicolor_register_ext(struct device *parent, | |
| 83 | struct led_classdev_mc *mcled_cdev, | |
| 84 | struct led_init_data *init_data) | |
| 85 | { | |
| 86 | return -EINVAL; | |
| 87 | } | |
| 88 | ||
| 89 | static inline int led_classdev_multicolor_register(struct device *parent, | |
| 90 | struct led_classdev_mc *mcled_cdev) | |
| 91 | { | |
| 92 | return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL); | |
| 93 | } | |
| 94 | ||
| 95 | static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {}; | |
| 96 | static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, | |
| 97 | enum led_brightness brightness) | |
| 98 | { | |
| 99 | return -EINVAL; | |
| 100 | } | |
| 101 | ||
| 102 | static inline int devm_led_classdev_multicolor_register_ext(struct device *parent, | |
| 103 | struct led_classdev_mc *mcled_cdev, | |
| 104 | struct led_init_data *init_data) | |
| 105 | { | |
| 106 | return -EINVAL; | |
| 107 | } | |
| 108 | ||
| 109 | static inline int devm_led_classdev_multicolor_register(struct device *parent, | |
| 110 | struct led_classdev_mc *mcled_cdev) | |
| 111 | { | |
| 112 | return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev, | |
| 113 | NULL); | |
| 114 | } | |
| 115 | ||
| 116 | static inline void devm_led_classdev_multicolor_unregister(struct device *parent, | |
| 117 | struct led_classdev_mc *mcled_cdev) | |
| 118 | {}; | |
| 119 | ||
| 120 | #endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */ | |
| 121 | #endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */ |