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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* LP5812 Driver Header
*
* Copyright (C) 2025 Texas Instruments
*
* Author: Jared Zhou <jared-zhou@ti.com>
*/
#ifndef _LP5812_H_
#define _LP5812_H_
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/led-class-multicolor.h>
#include <linux/leds.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
#include <linux/types.h>
#define LP5812_REG_ENABLE 0x0000
#define LP5812_REG_RESET 0x0023
#define LP5812_DEV_CONFIG0 0x0001
#define LP5812_DEV_CONFIG1 0x0002
#define LP5812_DEV_CONFIG2 0x0003
#define LP5812_DEV_CONFIG3 0x0004
#define LP5812_DEV_CONFIG4 0x0005
#define LP5812_DEV_CONFIG5 0x0006
#define LP5812_DEV_CONFIG6 0x0007
#define LP5812_DEV_CONFIG7 0x0008
#define LP5812_DEV_CONFIG8 0x0009
#define LP5812_DEV_CONFIG9 0x000A
#define LP5812_DEV_CONFIG10 0x000B
#define LP5812_DEV_CONFIG11 0x000c
#define LP5812_DEV_CONFIG12 0x000D
#define LP5812_CMD_UPDATE 0x0010
#define LP5812_LED_EN_1 0x0020
#define LP5812_LED_EN_2 0x0021
#define LP5812_FAULT_CLEAR 0x0022
#define LP5812_MANUAL_DC_BASE 0x0030
#define LP5812_AUTO_DC_BASE 0x0050
#define LP5812_MANUAL_PWM_BASE 0x0040
#define LP5812_TSD_CONFIG_STATUS 0x0300
#define LP5812_LOD_STATUS 0x0301
#define LP5812_LSD_STATUS 0x0303
#define LP5812_ENABLE 0x01
#define LP5812_DISABLE 0x00
#define FAULT_CLEAR_ALL 0x07
#define TSD_CLEAR_VAL 0x04
#define LSD_CLEAR_VAL 0x02
#define LOD_CLEAR_VAL 0x01
#define LP5812_RESET 0x66
#define LP5812_DEV_CONFIG12_DEFAULT 0x08
#define LP5812_UPDATE_CMD_VAL 0x55
#define LP5812_REG_ADDR_HIGH_SHIFT 8
#define LP5812_REG_ADDR_BIT_8_9_MASK 0x03
#define LP5812_REG_ADDR_LOW_MASK 0xFF
#define LP5812_CHIP_ADDR_SHIFT 2
#define LP5812_DATA_LENGTH 2
#define LP5812_DATA_BYTE_0_IDX 0
#define LP5812_DATA_BYTE_1_IDX 1
#define LP5812_READ_MSG_LENGTH 2
#define LP5812_MSG_0_IDX 0
#define LP5812_MSG_1_IDX 1
#define LP5812_CFG_ERR_STATUS_MASK 0x01
#define LP5812_CFG_TSD_STATUS_SHIFT 1
#define LP5812_CFG_TSD_STATUS_MASK 0x01
#define LP5812_FAULT_CLEAR_LOD 0
#define LP5812_FAULT_CLEAR_LSD 1
#define LP5812_FAULT_CLEAR_TSD 2
#define LP5812_FAULT_CLEAR_ALL 3
#define LP5812_NUMBER_LED_IN_REG 8
#define LP5812_WAIT_DEVICE_STABLE_MIN 1000
#define LP5812_WAIT_DEVICE_STABLE_MAX 1100
#define LP5812_LSD_LOD_START_UP 0x0B
#define LP5812_MODE_NAME_MAX_LEN 20
#define LP5812_MODE_DIRECT_NAME "direct_mode"
#define LP5812_MODE_DIRECT_VALUE 0
#define LP5812_MODE_MIX_SELECT_LED_0 0
#define LP5812_MODE_MIX_SELECT_LED_1 1
#define LP5812_MODE_MIX_SELECT_LED_2 2
#define LP5812_MODE_MIX_SELECT_LED_3 3
enum control_mode {
LP5812_MODE_MANUAL = 0,
LP5812_MODE_AUTONOMOUS
};
enum dimming_type {
LP5812_DIMMING_ANALOG,
LP5812_DIMMING_PWM
};
union lp5812_scan_order {
struct {
u8 order0:2;
u8 order1:2;
u8 order2:2;
u8 order3:2;
} bits;
u8 val;
};
union lp5812_drive_mode {
struct {
u8 mix_sel_led_0:1;
u8 mix_sel_led_1:1;
u8 mix_sel_led_2:1;
u8 mix_sel_led_3:1;
u8 led_mode:3;
u8 pwm_fre:1;
} bits;
u8 val;
};
struct lp5812_reg {
u16 addr;
union {
u8 val;
u8 mask;
u8 shift;
};
};
struct lp5812_mode_mapping {
char mode_name[LP5812_MODE_NAME_MAX_LEN];
u8 mode;
u8 scan_order_0;
u8 scan_order_1;
u8 scan_order_2;
u8 scan_order_3;
u8 selection_led;
};
struct lp5812_led_config {
bool is_sc_led;
const char *name;
u8 color_id[LED_COLOR_ID_MAX];
u32 max_current[LED_COLOR_ID_MAX];
int chan_nr;
int num_colors;
int led_id[LED_COLOR_ID_MAX];
};
struct lp5812_chip {
u8 num_channels;
struct i2c_client *client;
struct mutex lock; /* Protects register access */
struct lp5812_led_config *led_config;
const char *label;
const char *scan_mode;
union lp5812_scan_order scan_order;
union lp5812_drive_mode drive_mode;
};
struct lp5812_led {
u8 brightness;
int chan_nr;
struct led_classdev cdev;
struct led_classdev_mc mc_cdev;
struct lp5812_chip *chip;
};
#endif /*_LP5812_H_*/
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