knock_logic.h

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/*
 * @file knock_logic.h
 *
 * @date Apr 04, 2021
 * @author Andrey Gusakov
 */
 
#pragma once
 
#include "peak_detect.h"
#include "knock_controller_generated.h"
 
int getCylinderKnockBank(uint8_t cylinderNumber);
 
#define bore2frequency(bore)        (900 / (CONST_PI * (bore) / 2))
 
class KnockControllerBase : public EngineModule, public knock_controller_s {
public:
    KnockControllerBase() {
        // start with threshold higher than any possible knock to avoid recording spurious knocks
        m_knockThreshold = 100;
    }
    // EngineModule implementation
    void onFastCallback() override;
 
    // onKnockSenseCompleted is the callback from the knock sense driver to report a sensed knock level
    void onKnockSenseCompleted(uint8_t cylinderNumber, float dbv, efitick_t lastKnockTime);
 
    float getFuelTrimMultiplier() const;
    float getKnockRetard() const;
    uint32_t getKnockCount() const;
 
    virtual float getKnockThreshold() const = 0;
    virtual float getMaximumRetard() const = 0;
 
private:
    using PD = PeakDetect<float, MS2NT(50)>;
    PD peakDetectors[MAX_CYLINDER_COUNT];
    PD allCylinderPeakDetector;
};
 
class KnockController : public KnockControllerBase {
public:
    float getKnockThreshold() const override;
    float getMaximumRetard() const override;
};