mirror of https://github.com/FOME-Tech/fome-fw.git
149 lines
4.2 KiB
C++
149 lines
4.2 KiB
C++
/**
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* @file trigger_decoder.h
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*
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* @date Dec 24, 2013
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* @author Andrey Belomutskiy, (c) 2012-2017
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*/
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#ifndef TRIGGER_DECODER_H_
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#define TRIGGER_DECODER_H_
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#include "main.h"
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#include "trigger_structure.h"
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#include "engine_configuration.h"
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class TriggerState;
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typedef void (*TriggerStateCallback)(TriggerState *);
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typedef struct {
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/**
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* index within trigger revolution, from 0 to trigger event count
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*/
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uint32_t current_index;
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/**
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* Number of actual events of each channel within current trigger cycle, these
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* values are used to detect trigger signal errors.
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* see TriggerShape
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*/
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uint32_t eventCount[PWM_PHASE_MAX_WAVE_PER_PWM];
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/**
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* This array is used to calculate duty cycle of each trigger channel.
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* Current implementation is a bit funny - it does not really consider if an event
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* is a rise or a fall, it works based on the event order within synchronization cycle.
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*
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* 32 bit value is good enough here, overflows will happen but they would work just fine.
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*/
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uint32_t timeOfPreviousEventNt[PWM_PHASE_MAX_WAVE_PER_PWM];
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/**
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* Here we accumulate the amount of time this signal was ON within current trigger cycle
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*/
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uint32_t totalTimeNt[PWM_PHASE_MAX_WAVE_PER_PWM];
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} current_cycle_state_s;
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/**
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* @see TriggerShape for trigger wheel shape deginition
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*/
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class TriggerState {
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public:
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TriggerState();
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/**
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* current trigger processing index, between zero and #size
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*/
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int getCurrentIndex();
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int getTotalRevolutionCounter();
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/**
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* this is important for crank-based virtual trigger and VVT magic
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*/
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bool isEvenRevolution();
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void incrementTotalEventCounter();
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efitime_t getTotalEventCounter();
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efitime_t getStartOfRevolutionIndex();
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void decodeTriggerEvent(trigger_event_e const signal, efitime_t nowUs DECLARE_ENGINE_PARAMETER_SUFFIX);
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bool isValidIndex(DECLARE_ENGINE_PARAMETER_SIGNATURE);
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float getTriggerDutyCycle(int index);
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TriggerStateCallback triggerCycleCallback;
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/**
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* TRUE if we know where we are
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*/
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bool shaft_is_synchronized;
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uint32_t toothed_previous_duration; // todo: unify Camel_notation, what a mess :(
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uint32_t durationBeforePrevious; // this one is before 'toothed_previous_duration'
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uint32_t thirdPreviousDuration; // this one is before durationBeforePrevious, todo: better field names?
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/**
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* this could be a local variable, but it's better for debugging to have it as a field
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*/
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uint32_t currentDuration;
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efitime_t toothed_previous_time;
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current_cycle_state_s currentCycle;
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int expectedTotalTime[PWM_PHASE_MAX_WAVE_PER_PWM];
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/**
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* how many times since ECU reboot we had unexpected number of teeth in trigger cycle
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*/
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uint32_t totalTriggerErrorCounter;
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uint32_t runningTriggerErrorCounter;
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uint32_t orderingErrorCounter;
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uint32_t runningOrderingErrorCounter;
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void reset();
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void resetRunningCounters();
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virtual void runtimeStatistics(efitime_t nowNt DECLARE_ENGINE_PARAMETER_SUFFIX);
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uint32_t runningRevolutionCounter;
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/**
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* this is start of real trigger cycle
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* for virtual double trigger see timeAtVirtualZeroNt
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*/
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efitick_t startOfCycleNt;
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private:
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void resetCurrentCycleState();
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trigger_event_e curSignal;
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trigger_event_e prevSignal;
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efitime_t totalEventCountBase;
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uint32_t totalRevolutionCounter;
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bool isFirstEvent;
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};
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/**
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* the reason for sub-class is simply to save RAM but not having statisics in the trigger initialization instance
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*/
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class TriggerStateWithRunningStatistics : public TriggerState {
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public:
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TriggerStateWithRunningStatistics();
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float instantRpm;
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/**
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* timestamp of each trigger wheel tooth
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*/
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uint32_t timeOfLastEvent[PWM_PHASE_MAX_COUNT];
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/**
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* instant RPM calculated at this trigger wheel tooth
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*/
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float instantRpmValue[PWM_PHASE_MAX_COUNT];
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float calculateInstantRpm(int *prevIndex, efitime_t nowNt DECLARE_ENGINE_PARAMETER_SUFFIX);
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virtual void runtimeStatistics(efitime_t nowNt DECLARE_ENGINE_PARAMETER_SUFFIX);
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};
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angle_t getEngineCycle(operation_mode_e operationMode);
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uint32_t findTriggerZeroEventIndex(TriggerState *state, TriggerShape * shape, trigger_config_s const*triggerConfig DECLARE_ENGINE_PARAMETER_SUFFIX);
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class Engine;
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void initTriggerDecoder(void);
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void initTriggerDecoderLogger(Logging *sharedLogger);
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bool isTriggerDecoderError(void);
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#endif /* TRIGGER_DECODER_H_ */
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