AXP202Regs.hpp

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#pragma once
#include <stdint.h>
 
struct axp202_regs {
    // -------------------- Status --------------------
    struct bmu {
        static constexpr uint8_t STATUS           = 0x00;
        static constexpr uint8_t MODE_CHGSTATUS   = 0x01;
        static constexpr uint8_t OTG_STATUS       = 0x02;
        static constexpr uint8_t IC_TYPE          = 0x03;
        static constexpr uint8_t DATA_BUFFER1     = 0x04;
        static constexpr uint8_t DATA_BUFFER2     = 0x05;
        static constexpr uint8_t DATA_BUFFER3     = 0x06;
        static constexpr uint8_t DATA_BUFFER4     = 0x07;
    };
 
    // -------------------- Power Control --------------------
    struct pmu {
        static constexpr uint8_t LDO234_DC23_CTL   = 0x12;
        static constexpr uint8_t DC2OUT_VOL        = 0x23;
        static constexpr uint8_t DC3OUT_VOL        = 0x27;
        static constexpr uint8_t LDO24OUT_VOL      = 0x28;
        static constexpr uint8_t LDO3OUT_VOL       = 0x29;
        static constexpr uint8_t IPS_SET           = 0x30;
        static constexpr uint8_t VOFF_SET          = 0x31;
        static constexpr uint8_t OFF_CTL           = 0x32;
        static constexpr uint8_t POK_SET           = 0x36;
        static constexpr uint8_t LDO3_DC2_DVM    = 0x25;
        static constexpr uint8_t DCDC_FREQSET    = 0x37;
        static constexpr uint8_t APS_WARNING1    = 0x3A;
        static constexpr uint8_t APS_WARNING2    = 0x3B;
        static constexpr uint8_t DCDC_MODESET      = 0x80;
        static constexpr uint8_t VBUS_DET_SRP    = 0x8B;
        static constexpr uint8_t HOTOVER_CTL     = 0x8F;
 
        // REG30H[1:0] current-limit encoding (AXP202)
        // 00=900mA, 01=500mA, 10=100mA, 11=OFF
        static constexpr uint8_t INPUT_CURR_MASK = 0x03;
 
        static inline uint8_t encodeInputCurrentLimit(uint32_t mA)
        {
            if (mA >= 900) {
                return 0x00;
            }
            if (mA >= 500) {
                return 0x01;
            }
            if (mA >= 100) {
                return 0x02;
            }
            return 0x03;
        }
 
        static inline uint32_t decodeInputCurrentLimit(uint8_t reg)
        {
            switch (reg & INPUT_CURR_MASK) {
            case 0x00: return 900;
            case 0x01: return 500;
            case 0x02: return 100;
            default:   return 0;
            }
        }
    };
 
    // -------------------- Charger --------------------
    struct chg {
        static constexpr uint8_t CHARGE1           = 0x33;
        static constexpr uint8_t CHARGE2           = 0x34;
        static constexpr uint8_t BACKUP_CHG        = 0x35;
        static constexpr uint8_t VLTF_CHGSET     = 0x38;
        static constexpr uint8_t VHTF_CHGSET     = 0x39;
        static constexpr uint8_t TLTF_DISCHGSET  = 0x3C;
        static constexpr uint8_t THTF_DISCHGSET  = 0x3D;
 
        // Charger constants
        static constexpr uint16_t CHG_CUR_MIN      = 300;
        static constexpr uint16_t CHG_CUR_MAX      = 1800;
        static constexpr uint16_t CHG_CUR_STEP    = 100;
    };
 
    // -------------------- IRQ --------------------
    struct irq {
        static constexpr uint8_t ENABLE1           = 0x40;
        static constexpr uint8_t ENABLE2           = 0x41;
        static constexpr uint8_t ENABLE3           = 0x42;
        static constexpr uint8_t ENABLE4           = 0x43;
        static constexpr uint8_t ENABLE5           = 0x44;
        static constexpr uint8_t STATUS1           = 0x48;
        static constexpr uint8_t STATUS2           = 0x49;
        static constexpr uint8_t STATUS3           = 0x4A;
        static constexpr uint8_t STATUS4           = 0x4B;
        static constexpr uint8_t STATUS5           = 0x4C;
    };
 
    // -------------------- ADC --------------------
    struct adc {
        static constexpr uint8_t ADC_EN1           = 0x82;
        static constexpr uint8_t ADC_EN2           = 0x83;
        static constexpr uint8_t ADC_SPEED         = 0x84;
        static constexpr uint8_t ADC_INPUTRANGE  = 0x85;
        static constexpr uint8_t ADC_IRQ_RETFSET = 0x86;
        static constexpr uint8_t ADC_IRQ_FETFSET = 0x87;
 
        static constexpr uint8_t ACIN_VOL_H      = 0x56;
        static constexpr uint8_t ACIN_VOL_L      = 0x57;
        static constexpr uint8_t ACIN_CUR_H      = 0x58;
        static constexpr uint8_t ACIN_CUR_L      = 0x59;
 
        static constexpr uint8_t VBUS_VOL_H        = 0x5A;
        static constexpr uint8_t VBUS_VOL_L        = 0x5B;
        static constexpr uint8_t VBUS_CUR_H        = 0x5C;
        static constexpr uint8_t VBUS_CUR_L        = 0x5D;
        static constexpr uint8_t INTERNAL_TEMP_H   = 0x5E;
        static constexpr uint8_t INTERNAL_TEMP_L   = 0x5F;
        static constexpr uint8_t TS_IN_H           = 0x62;
        static constexpr uint8_t TS_IN_L           = 0x63;
        static constexpr uint8_t GPIO0_ADC_H       = 0x64;
        static constexpr uint8_t GPIO0_ADC_L       = 0x65;
        static constexpr uint8_t GPIO1_ADC_H       = 0x66;
        static constexpr uint8_t GPIO1_ADC_L       = 0x67;
        static constexpr uint8_t BAT_AVERVOL_H     = 0x78;
        static constexpr uint8_t BAT_AVERVOL_L     = 0x79;
        static constexpr uint8_t BAT_AVERCHGCUR_H  = 0x7A;
        static constexpr uint8_t BAT_AVERCHGCUR_L  = 0x7B;
        static constexpr uint8_t BAT_AVERDISCHGCUR_H = 0x7C;
        static constexpr uint8_t BAT_AVERDISCHGCUR_L = 0x7D;
        static constexpr uint8_t APS_AVERVOL_H     = 0x7E;
        static constexpr uint8_t APS_AVERVOL_L     = 0x7F;
        static constexpr uint8_t BAT_POWER_H       = 0x70;
        static constexpr uint8_t BAT_POWER_M       = 0x71;
        static constexpr uint8_t BAT_POWER_L       = 0x72;
        static constexpr uint8_t BATT_PERCENTAGE   = 0xB9;
    };
 
    // -------------------- GPIO --------------------
    struct gpio {
        static constexpr uint8_t GPIO0_CTL         = 0x90;
        static constexpr uint8_t GPIO0_VOL         = 0x91;
        static constexpr uint8_t GPIO1_CTL         = 0x92;
        static constexpr uint8_t GPIO2_CTL         = 0x93;
        static constexpr uint8_t GPIO012_SIGNAL    = 0x94;
        static constexpr uint8_t GPIO3_CTL         = 0x95;
    };
 
    // -------------------- Coulomb Counter --------------------
    struct coulomb {
        static constexpr uint8_t BAT_CHGCOULOMB3    = 0xB0;
        static constexpr uint8_t BAT_CHGCOULOMB2    = 0xB1;
        static constexpr uint8_t BAT_CHGCOULOMB1    = 0xB2;
        static constexpr uint8_t BAT_CHGCOULOMB0    = 0xB3;
        static constexpr uint8_t BAT_DISCHGCOULOMB3 = 0xB4;
        static constexpr uint8_t BAT_DISCHGCOULOMB2 = 0xB5;
        static constexpr uint8_t BAT_DISCHGCOULOMB1 = 0xB6;
        static constexpr uint8_t BAT_DISCHGCOULOMB0 = 0xB7;
        static constexpr uint8_t COULOMB_CTL        = 0xB8;
    };
 
    // -------------------- Timer / Watchdog --------------------
    struct timer {
        static constexpr uint8_t TIMER_CTL         = 0x8A;
    };
 
    // -------------------- Factory ADC conversion factors --------------------
    struct factory {
        static constexpr float FACTORY_VBUS_VOLTAGE   = 1.7f;
        static constexpr float FACTORY_VBUS_CURRENT   = 0.375f;
        static constexpr float FACTORY_VBAT_VOLTAGE   = 1.1f;
        static constexpr float FACTORY_BAT_CURRENT    = 0.5f;
        static constexpr float FACTORY_APS_VOLTAGE    = 1.4f;
        static constexpr float FACTORY_INTERNAL_TEMP  = 0.1f;
        static constexpr float FACTORY_INTERNAL_OFFSET = 144.7f;
        static constexpr float FACTORY_ACIN_VOLTAGE   = 1.7f;
        static constexpr float FACTORY_ACIN_CURRENT   = 0.625f;
        static constexpr float FACTORY_TS_VOLTAGE     = 0.8f;
        static constexpr float FACTORY_GPIO_VOLTAGE   = 0.5f;
    };
 
    // -------------------- Constants --------------------
    static constexpr uint8_t CHIP_ID              = 0x41;
 
    // Power enable bits in LDO234_DC23_CTL (0x12)
    static constexpr uint8_t BIT_EXTEN   = 0;
    static constexpr uint8_t BIT_DCDC3   = 1;
    static constexpr uint8_t BIT_LDO2    = 2;
    static constexpr uint8_t BIT_LDO4    = 3;
    static constexpr uint8_t BIT_DCDC2   = 4;
    static constexpr uint8_t BIT_LDO3    = 6;
 
    // Aliases used by some .cpp files (same as bmu/pmu)
    using status = bmu;
    using power = pmu;
};