AXP2101Led.cpp

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#include "../../../SensorBuildOpt.h"
#if !SENSORLIB_EXCLUDE_PMIC_AXP2101
 
#include "AXP2101Led.hpp"
#include "AXP2101Regs.hpp"
 
 
AXP2101Led::AXP2101Led(AXP2101Core &core) : _core(core)
{
}
 
// Bit 6 (0x40) is RO per datasheet — CHGLED is always open-drain.
bool AXP2101Led::setOutputType(OutputType type)
{
    (void)type;
    return false;
}
 
bool AXP2101Led::setMode(Mode mode)
{
    switch (mode) {
    case Mode::AUTO:
        return _core.updateBits(axp2101_regs::chg::CHGLED_CFG, 0x06, 0x00) >= 0;
    case Mode::MANUAL:
        return _core.updateBits(axp2101_regs::chg::CHGLED_CFG, 0x06, 0x04) >= 0;
    case Mode::DISABLE:
        return _core.updateBits(axp2101_regs::chg::CHGLED_CFG, 0x01, 0x00) >= 0;
    default:
        return false;
    }
}
 
AXP2101Led::Mode AXP2101Led::getMode()
{
    int val = _core.readReg(axp2101_regs::chg::CHGLED_CFG);
    if (val < 0) return Mode::VENDOR;
    if ((val & 0x01) == 0) return Mode::DISABLE;
    switch (val & 0x06) {
    case 0x04: return Mode::MANUAL;
    default:   return Mode::AUTO;
    }
}
 
// Datasheet REG69H bits 5:4:
//   00 = HiZ        01 = 1 Hz blink    10 = 4 Hz blink    11 = drive low
// On open-drain: LEVEL_HIGH and HiZ are both HiZ (LED off),
// LEVEL_LOW = drive low (LED on).
// Readback aliases 0x00 → LEVEL_HIGH so toggle patterns work.
bool AXP2101Led::setManualState(ManualState state)
{
    uint8_t code;
    switch (state) {
    case ManualState::LEVEL_HIGH:
    case ManualState::HiZ:        code = 0x00; break;
    case ManualState::BLINK_1HZ:  code = 0x01; break;
    case ManualState::BLINK_4HZ:  code = 0x02; break;
    case ManualState::LEVEL_LOW:  code = 0x03; break;
    default: return false;
    }
    if (_core.updateBits(axp2101_regs::chg::CHGLED_CFG, 0x06, 0x04) < 0) {
        return false;
    }
    return _core.updateBits(axp2101_regs::chg::CHGLED_CFG, 0x30, code << 4) >= 0;
}
 
AXP2101Led::ManualState AXP2101Led::getManualState()
{
    int val = _core.readReg(axp2101_regs::chg::CHGLED_CFG);
    if (val < 0) return ManualState::UNDEFINED;
    if ((val & 0x06) != 0x04) {
        return ManualState::UNDEFINED;
    }
    uint8_t code = (val >> 4) & 0x03;
    switch (code) {
    case 0x00: return ManualState::LEVEL_HIGH;
    case 0x01: return ManualState::BLINK_1HZ;
    case 0x02: return ManualState::BLINK_4HZ;
    case 0x03: return ManualState::LEVEL_LOW;
    default:   return ManualState::UNDEFINED;
    }
}
 
#endif