1280x800 4096x2160 4096x2160 2560x1600 2560x1600 1920x1440 1856x1392 1792x1344 2048x1152 1920x1200 1920x1200 1920x1080 1600x1200 1680x1050 1680x1050 1400x1050 1400x1050 1600x900 1280x1024 1440x900 1440x900 1280x960 1366x768 1366x768 1360x768 1280x800 1280x800 1280x768 1280x768 1280x720 1024x768 800x600 800x600 848x480 640x480 ˆÀÄ ƒqð¿ÃÂô/* SPDX-License-Identifier: GPL-2.0-only */ /* * LED Flash class interface * * Copyright (C) 2015 Samsung Electronics Co., Ltd. * Author: Jacek Anaszewski */ #ifndef __LINUX_FLASH_LEDS_H_INCLUDED #define __LINUX_FLASH_LEDS_H_INCLUDED #include struct device_node; struct led_classdev_flash; /* * Supported led fault bits - must be kept in synch * with V4L2_FLASH_FAULT bits. */ #define LED_FAULT_OVER_VOLTAGE (1 << 0) #define LED_FAULT_TIMEOUT (1 << 1) #define LED_FAULT_OVER_TEMPERATURE (1 << 2) #define LED_FAULT_SHORT_CIRCUIT (1 << 3) #define LED_FAULT_OVER_CURRENT (1 << 4) #define LED_FAULT_INDICATOR (1 << 5) #define LED_FAULT_UNDER_VOLTAGE (1 << 6) #define LED_FAULT_INPUT_VOLTAGE (1 << 7) #define LED_FAULT_LED_OVER_TEMPERATURE (1 << 8) #define LED_NUM_FLASH_FAULTS 9 #define LED_FLASH_SYSFS_GROUPS_SIZE 5 struct led_flash_ops { /* set flash brightness */ int (*flash_brightness_set)(struct led_classdev_flash *fled_cdev, u32 brightness); /* get flash brightness */ int (*flash_brightness_get)(struct led_classdev_flash *fled_cdev, u32 *brightness); /* set flash strobe state */ int (*strobe_set)(struct led_classdev_flash *fled_cdev, bool state); /* get flash strobe state */ int (*strobe_get)(struct led_classdev_flash *fled_cdev, bool *state); /* set flash timeout */ int (*timeout_set)(struct led_classdev_flash *fled_cdev, u32 timeout); /* get the flash LED fault */ int (*fault_get)(struct led_classdev_flash *fled_cdev, u32 *fault); }; /* * Current value of a flash setting along * with its constraints. */ struct led_flash_setting { /* maximum allowed value */ u32 min; /* maximum allowed value */ u32 max; /* step value */ u32 step; /* current value */ u32 val; }; struct led_classdev_flash { /* led class device */ struct led_classdev led_cdev; /* flash led specific ops */ const struct led_flash_ops *ops; /* flash brightness value in microamperes along with its constraints */ struct led_flash_setting brightness; /* flash timeout value in microseconds along with its constraints */ struct led_flash_setting timeout; /* LED Flash class sysfs groups */ const struct attribute_group *sysfs_groups[LED_FLASH_SYSFS_GROUPS_SIZE]; }; static inline struct led_classdev_flash *lcdev_to_flcdev( struct led_classdev *lcdev) { return container_of(lcdev, struct led_classdev_flash, led_cdev); } #if IS_ENABLED(CONFIG_LEDS_CLASS_FLASH) /** * led_classdev_flash_register_ext - register a new object of LED class with * init data and with support for flash LEDs * @parent: LED flash controller device this flash LED is driven by * @fled_cdev: the led_classdev_flash structure for this device * @init_data: the LED class flash device initialization data * * Returns: 0 on success or negative error value on failure */ int led_classdev_flash_register_ext(struct device *parent, struct led_classdev_flash *fled_cdev, struct led_init_data *init_data); /** * led_classdev_flash_unregister - unregisters an object of led_classdev class * with support for flash LEDs * @fled_cdev: the flash LED to unregister * * Unregister a previously registered via led_classdev_flash_register object */ void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev); int devm_led_classdev_flash_register_ext(struct device *parent, struct led_classdev_flash *fled_cdev, struct led_init_data *init_data); void devm_led_classdev_flash_unregister(struct device *parent, struct led_classdev_flash *fled_cdev); #else static inline int led_classdev_flash_register_ext(struct device *parent, struct led_classdev_flash *fled_cdev, struct led_i