SY6970Core.hpp

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#pragma once
 
#include "../../../platform/comm/I2CDeviceWithHal.hpp"
 
namespace SY6970Faults
{
constexpr uint8_t WATCHDOG_TIMEOUT = 0x80;
constexpr uint8_t BOOST_FAULT = 0x40;
constexpr uint8_t CHARGE_FAULT_MASK = 0x30;  // Bits 5-4
constexpr uint8_t CHARGE_FAULT_NORMAL = 0x00;
constexpr uint8_t CHARGE_FAULT_INPUT = 0x10;  // Bit 4: BUS OVP or VBAT<BUS<3.8V
constexpr uint8_t CHARGE_FAULT_THERMAL = 0x20;  // Bit 5: Thermal shutdown
constexpr uint8_t CHARGE_FAULT_TIMER = 0x30;  // Bits 5+4: Safety timer expiration
constexpr uint8_t BATTERY_FAULT = 0x08;
constexpr uint8_t NTC_FAULT_MASK = 0x07; // Bits 2-0
 
inline bool isWatchdogTimeout(uint8_t fault)
{
    return (fault & WATCHDOG_TIMEOUT) != 0;
}
inline bool isBoostFault(uint8_t fault)
{
    return (fault & BOOST_FAULT) != 0;
}
inline bool isChargeFault(uint8_t fault)
{
    return (fault & CHARGE_FAULT_MASK) != 0;
}
inline uint8_t getChargeFaultType(uint8_t fault)
{
    return fault & CHARGE_FAULT_MASK;
}
inline bool isChargeInputFault(uint8_t fault)
{
    return (fault & CHARGE_FAULT_MASK) == CHARGE_FAULT_INPUT;
}
inline bool isChargeThermalFault(uint8_t fault)
{
    return (fault & CHARGE_FAULT_MASK) == CHARGE_FAULT_THERMAL;
}
inline bool isChargeTimerFault(uint8_t fault)
{
    return (fault & CHARGE_FAULT_MASK) == CHARGE_FAULT_TIMER;
}
inline bool isBatteryFault(uint8_t fault)
{
    return (fault & BATTERY_FAULT) != 0;
}
inline uint8_t getNtcFault(uint8_t fault)
{
    return fault & NTC_FAULT_MASK;
}
}
 
class SY6970Core : public I2CDeviceWithHal
{
public:
    SY6970Core() = default;
 
    ~SY6970Core() = default;
 
    void end();
 
    bool isValid() const;
 
    uint8_t getDeviceRevision() const;
 
    void reset();
 
    bool isVbusPresent();
 
    uint8_t getBusStatus();
 
    uint8_t getChargeStatus();
 
    bool isPowerGood();
 
    bool isCharging();
 
    bool isChargeDone();
 
    bool isOtg();
 
    bool getFaultStatus(uint8_t &fault);
 
private:
    bool initImpl(uint8_t param) override;
};