mirror of https://github.com/rusefi/rusefi.git
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/*
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* @file cdm_ion_sense.cpp
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*
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* Saab Ion Sensing Module integration
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*
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* See https://github.com/rusefi/rusefi/wiki/Saab_Trionic_8_Combustion-Detection-Module_on_Mazda_Miata_running_rusEfi
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*
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* Created on: Dec 31, 2018
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#include "pch.h"
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#include "cdm_ion_sense.h"
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CdmState::CdmState() {
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accumilatingAtRevolution = 0;
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currentValue = 0;
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accumulatingCurrentValue = 0;
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}
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int CdmState::getValue(int currentRevolution) {
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applyAccumulatedData(currentRevolution);
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if (currentRevolution == currentValueAtIndex + 1) {
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// returning total result of previous engine cycle
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return currentValue;
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}
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// we are here if previous engine cycle had no knock events
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return 0;
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}
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void CdmState::applyAccumulatedData(int currentRevolution) {
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if (currentRevolution > accumilatingAtRevolution) {
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currentValue = accumulatingCurrentValue;
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currentValueAtIndex = accumilatingAtRevolution;
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}
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}
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void CdmState::onNewSignal(int currentRevolution) {
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if (this->accumilatingAtRevolution == currentRevolution) {
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accumulatingCurrentValue++;
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} else {
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applyAccumulatedData(currentRevolution);
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// start new accumulation
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accumilatingAtRevolution = currentRevolution;
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accumulatingCurrentValue = 1;
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}
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}
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// above logic compiles unconditionally so that unit tests are happy, but without an instance linker would have nothing to link
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#if EFI_CDM_INTEGRATION
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#include "digital_input_exti.h"
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static CdmState instance;
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int getCurrentCdmValue(int currentRevolution) {
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return instance.getValue(currentRevolution);
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}
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#if EFI_TUNER_STUDIO
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void ionPostState(TunerStudioOutputChannels *tsOutputChannels) {
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tsOutputChannels->debugIntField1 = instance.totalCdmEvents;
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}
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#endif /* EFI_TUNER_STUDIO */
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static void extIonCallback(void *arg) {
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UNUSED(arg);
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instance.totalCdmEvents++;
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int currentRevolution = engine->triggerCentral.triggerState.getCrankSynchronizationCounter();
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instance.onNewSignal(currentRevolution);
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}
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void cdmIonInit(void) {
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if (!isBrainPinValid(engineConfiguration->cdmInputPin)) {
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return;
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}
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efiExtiEnablePin("ion", engineConfiguration->cdmInputPin, PAL_EVENT_MODE_RISING_EDGE, extIonCallback, NULL);
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}
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#endif /* EFI_CDM_INTEGRATION */
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