flipperzero-firmware/lib/drivers/lp5562.c

#include "lp5562.h"
#include "lp5562_reg.h"

#include <api-hal.h>
#include <stdio.h>

bool lp5562_read(uint8_t address, uint8_t* data, size_t size) {
    bool ret;
    with_api_hal_i2c(bool, &ret, (){
        if (HAL_I2C_Master_Transmit(&POWER_I2C, LP5562_ADDRESS, &address, 1, 2000) != HAL_OK) {
            return false;
        }
        if (HAL_I2C_Master_Receive(&POWER_I2C, LP5562_ADDRESS, data, size, 2000) != HAL_OK) {
            return false;
        }
        return true;
    });
    return ret;
}

bool lp5562_read_reg(uint8_t address, uint8_t* data) {
    return lp5562_read(address, data, 1);
}

bool lp5562_write_reg(uint8_t address, uint8_t *data) {
    uint8_t buffer[2] = { address, *data };
    bool ret;
    with_api_hal_i2c(bool, &ret, (){
        if (HAL_I2C_Master_Transmit(&POWER_I2C, LP5562_ADDRESS, buffer, 2, 2000) != HAL_OK) {
            return false;
        }
        return true;
    });
    return ret;
}

void lp5562_reset() {
    Reg0D_Reset reg = {.value = 0xFF };
    lp5562_write_reg(0x0D, (uint8_t*)&reg);
}

void lp5562_configure() {
    Reg08_Config config = { .INT_CLK_EN = true, .PS_EN = true, .PWM_HF = true };
    lp5562_write_reg(0x08, (uint8_t*)&config);
    
    Reg70_LedMap map = {
        .red = EngSelectI2C,
        .green = EngSelectI2C,
        .blue = EngSelectI2C,
        .white = EngSelectI2C,
    };
    lp5562_write_reg(0x70, (uint8_t*)&map);
}

void lp5562_enable() {
    Reg00_Enable reg = { .CHIP_EN = true, .LOG_EN = true };
    lp5562_write_reg(0x00, (uint8_t*)&reg);
}

void lp5562_set_channel_current(LP5562Channel channel, uint8_t value) {
    uint8_t reg_no;
    if (channel == LP5562ChannelRed) {
        reg_no = 0x07;
    } else if (channel == LP5562ChannelGreen) {
        reg_no = 0x06;
    } else if (channel == LP5562ChannelBlue) {
        reg_no = 0x05;
    } else if (channel == LP5562ChannelWhite) {
        reg_no = 0x0F;
    } else {
        return;
    }
    lp5562_write_reg(reg_no, &value);
}

void lp5562_set_channel_value(LP5562Channel channel, uint8_t value) {
    uint8_t reg_no;
    if (channel == LP5562ChannelRed) {
        reg_no = 0x04;
    } else if (channel == LP5562ChannelGreen) {
        reg_no = 0x03;
    } else if (channel == LP5562ChannelBlue) {
        reg_no = 0x02;
    } else if (channel == LP5562ChannelWhite) {
        reg_no = 0x0E;
    } else {
        return;
    }
    lp5562_write_reg(reg_no, &value);
}