AemXSeriesLambda.h

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#pragma once
 
#include "can_sensor.h"
 
#include "wideband_state_generated.h"
 
// Following codes "extend" wbo::Fault codes
#define HACK_INVALID_AEM 7
 
// todo: static_cast<uint8_t>(Fault::LegacyProtocol);
 
#define RUSEFI_WIDEBAND_VERSION_MIN 0xA0
 
class AemXSeriesWideband : public CanSensorBase, public wideband_state_s {
public:
    AemXSeriesWideband(uint8_t sensorIndex, SensorType type);
 
    bool acceptFrame(const size_t busIndex, const CANRxFrame& frame) const override final;
 
    void refreshState(void);
 
    void refreshSmoothedLambda(float lambda);
 
protected:
    // Dispatches to one of the three decoders below
    void decodeFrame(const CANRxFrame& frame, efitick_t nowNt) override;
 
    // Decode an actual AEM controller, or a rusEFI controller sending AEM format
    bool decodeAemXSeries(const CANRxFrame& frame, efitick_t nowNt);
 
    // Decode rusEFI custom format
    bool decodeRusefiStandard(const CANRxFrame& frame, efitick_t nowNt);
    void decodeRusefiDiag(const CANRxFrame& frame);
 
private:
    can_wbo_type_e sensorType() const;
    uint32_t getReCanId() const;
    uint32_t getAemCanId() const;
    bool isHeaterAllowed();
 
    const uint8_t m_sensorIndex;
    // raw fault code from sensor
    uint8_t m_faultCode;
    // Used by both AEM and rusEFI WBO
    bool m_afrIsValid;
    // Used for AEM sensor only
    bool m_isFault;
    // Last valid packed received, for wbo::Fault::CanSilent state
    efitick_t m_lastUpdate = 0;
};