SY6970Core.cpp

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#include "../../../SensorBuildOpt.h"
#if !SENSORLIB_EXCLUDE_PMIC_SY6970
 
#include "SY6970Core.hpp"
#include "SY6970Regs.hpp"
 
using namespace SY6970Regs;
 
void SY6970Core::end() {}
 
bool SY6970Core::isValid() const
{
    uint8_t rev = getDeviceRevision();
    return rev == SY6970_DEV_REV;
}
 
uint8_t SY6970Core::getDeviceRevision() const
{
    int val = readReg(REG_DEVICE_REV);
    return (val >= 0) ? (val & MASK_DEV_REV) : 0xFF;
}
 
void SY6970Core::reset()
{
    setRegBit(REG_DEVICE_REV, 7);
}
 
bool SY6970Core::isVbusPresent()
{
    int val = readReg(REG_ADC_BUSV);
    return (val >= 0) && (val & MASK_BUS_GD);
}
 
uint8_t SY6970Core::getBusStatus()
{
    int val = readReg(REG_STATUS);
    return (val >= 0) ? ((val >> SHIFT_BUS_STAT) & 0x07) : 0;
}
 
uint8_t SY6970Core::getChargeStatus()
{
    int val = readReg(REG_STATUS);
    return (val >= 0) ? ((val >> SHIFT_CHRG_STAT) & 0x03) : 0xFF;
}
 
bool SY6970Core::isPowerGood()
{
    int val = readReg(REG_STATUS);
    return (val >= 0) && (val & MASK_PG_STAT);
}
 
bool SY6970Core::isCharging()
{
    return getChargeStatus() != CHARGE_STATE_NO_CHARGE;
}
 
bool SY6970Core::isChargeDone()
{
    return getChargeStatus() == CHARGE_STATE_DONE;
}
 
bool SY6970Core::isOtg()
{
    return getBusStatus() == BUS_STATE_OTG;
}
 
bool SY6970Core::getFaultStatus(uint8_t &fault)
{
    int val = readReg(REG_FAULT);
    if (val < 0) return false;
    fault = static_cast<uint8_t>(val);
    return true;
}
 
bool SY6970Core::initImpl(uint8_t param)
{
    (void)param;
    uint8_t rev = getDeviceRevision();
    if (rev != SY6970_DEV_REV) {
        SENSORLIB_LOG_E("Device revision mismatch: expected 0x%02x, got 0x%02x",
                        static_cast<unsigned int>(SY6970_DEV_REV),
                        static_cast<unsigned int>(rev));
        return false;
    }
    // Perform a reset to ensure device is in known state
    reset();
 
    while (getRegBit(REG_DEVICE_REV, 7)) {
        // Wait for reset bit to clear, indicating reset complete
        hal->delay(10);
    }
 
    // Disable watchdog timer by default for safety (can be enabled via API)
    return updateBits(REG_CHG_TIMER, MASK_WATCHDOG, 0x00) >= 0;
}
 
#endif