/* SPDX-License-Identifier: GPL-2.0-only */ /* * LP55XX Common Driver Header * * Copyright (C) 2012 Texas Instruments * * Author: Milo(Woogyom) Kim <[email protected]> * * Derived from leds-lp5521.c, leds-lp5523.c */ #ifndef _LEDS_LP55XX_COMMON_H #define _LEDS_LP55XX_COMMON_H #include <linux/led-class-multicolor.h> #define LP55xx_BYTES_PER_PAGE … enum lp55xx_engine_index { … }; enum lp55xx_engine_mode { … }; #define LP55XX_DEV_ATTR_RW(name, show, store) … #define LP55XX_DEV_ATTR_RO(name, show) … #define LP55XX_DEV_ATTR_WO(name, store) … #define LP55XX_DEV_ATTR_ENGINE_MODE(nr) … #define LP55XX_DEV_ATTR_ENGINE_LEDS(nr) … #define LP55XX_DEV_ATTR_ENGINE_LOAD(nr) … #define LP55XX_DEV_ATTR_MASTER_FADER(nr) … struct lp55xx_led; struct lp55xx_chip; /* * struct lp55xx_reg * @addr : Register address * @val : Register value (can also used as mask or shift) */ struct lp55xx_reg { … }; /* * struct lp55xx_device_config * @reg_op_mode : Chip specific OP MODE reg addr * @engine_busy : Chip specific engine busy * (if not supported 153 us sleep) * @reset : Chip specific reset command * @enable : Chip specific enable command * @prog_mem_base : Chip specific base reg address for chip SMEM programming * @reg_led_pwm_base : Chip specific base reg address for LED PWM conf * @reg_led_current_base : Chip specific base reg address for LED current conf * @reg_master_fader_base : Chip specific base reg address for master fader base * @reg_led_ctrl_base : Chip specific base reg address for LED ctrl base * @pages_per_engine : Assigned pages for each engine * (if not set chip doesn't support pages) * @max_channel : Maximum number of channels * @post_init_device : Chip specific initialization code * @brightness_fn : Brightness function * @multicolor_brightness_fn : Multicolor brightness function * @set_led_current : LED current set function * @firmware_cb : Call function when the firmware is loaded * @run_engine : Run internal engine for pattern * @dev_attr_group : Device specific attributes */ struct lp55xx_device_config { … }; /* * struct lp55xx_engine * @mode : Engine mode * @led_mux : Mux bits for LED selection. Only used in LP5523 */ struct lp55xx_engine { … }; /* * struct lp55xx_chip * @cl : I2C communication for access registers * @pdata : Platform specific data * @lock : Lock for user-space interface * @num_leds : Number of registered LEDs * @cfg : Device specific configuration data * @engine_idx : Selected engine number * @engines : Engine structure for the device attribute R/W interface * @fw : Firmware data for running a LED pattern */ struct lp55xx_chip { … }; /* * struct lp55xx_led * @chan_nr : Channel number * @cdev : LED class device * @mc_cdev : Multi color class device * @color_components: Multi color LED map information * @led_current : Current setting at each led channel * @max_current : Maximun current at each led channel * @brightness : Brightness value * @chip : The lp55xx chip data */ struct lp55xx_led { … }; /* register access */ extern int lp55xx_write(struct lp55xx_chip *chip, u8 reg, u8 val); extern int lp55xx_read(struct lp55xx_chip *chip, u8 reg, u8 *val); extern int lp55xx_update_bits(struct lp55xx_chip *chip, u8 reg, u8 mask, u8 val); /* external clock detection */ extern bool lp55xx_is_extclk_used(struct lp55xx_chip *chip); /* common chip functions */ extern void lp55xx_stop_all_engine(struct lp55xx_chip *chip); extern void lp55xx_load_engine(struct lp55xx_chip *chip); extern int lp55xx_run_engine_common(struct lp55xx_chip *chip); extern int lp55xx_update_program_memory(struct lp55xx_chip *chip, const u8 *data, size_t size); extern void lp55xx_firmware_loaded_cb(struct lp55xx_chip *chip); extern int lp55xx_led_brightness(struct lp55xx_led *led); extern int lp55xx_multicolor_brightness(struct lp55xx_led *led); extern void lp55xx_set_led_current(struct lp55xx_led *led, u8 led_current); extern void lp55xx_turn_off_channels(struct lp55xx_chip *chip); extern void lp55xx_stop_engine(struct lp55xx_chip *chip); /* common probe/remove function */ extern int lp55xx_probe(struct i2c_client *client); extern void lp55xx_remove(struct i2c_client *client); /* common sysfs function */ extern ssize_t lp55xx_show_engine_mode(struct device *dev, struct device_attribute *attr, char *buf, int nr); extern ssize_t lp55xx_store_engine_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t len, int nr); extern ssize_t lp55xx_store_engine_load(struct device *dev, struct device_attribute *attr, const char *buf, size_t len, int nr); extern ssize_t lp55xx_show_engine_leds(struct device *dev, struct device_attribute *attr, char *buf, int nr); extern ssize_t lp55xx_store_engine_leds(struct device *dev, struct device_attribute *attr, const char *buf, size_t len, int nr); extern ssize_t lp55xx_show_master_fader(struct device *dev, struct device_attribute *attr, char *buf, int nr); extern ssize_t lp55xx_store_master_fader(struct device *dev, struct device_attribute *attr, const char *buf, size_t len, int nr); extern ssize_t lp55xx_show_master_fader_leds(struct device *dev, struct device_attribute *attr, char *buf); extern ssize_t lp55xx_store_master_fader_leds(struct device *dev, struct device_attribute *attr, const char *buf, size_t len); #endif /* _LEDS_LP55XX_COMMON_H */
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