107 lines
2.1 KiB
C
107 lines
2.1 KiB
C
/**
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* @file trigger_structure.h
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*
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* @date Dec 22, 2013
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* @author Andrey Belomutskiy, (c) 2012-2013
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*/
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#ifndef TRIGGER_STRUCTURE_H_
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#define TRIGGER_STRUCTURE_H_
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#include "rusefi_enums.h"
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#define PWM_PHASE_MAX_COUNT 150
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#define PWM_PHASE_MAX_WAVE_PER_PWM 2
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typedef enum {
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SHAFT_PRIMARY_UP = 0,
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SHAFT_PRIMARY_DOWN = 1,
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SHAFT_SECONDARY_UP = 2,
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SHAFT_SECONDARY_DOWN = 3,
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} ShaftEvents;
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typedef struct {
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/**
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* TRUE if we know where we are
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*/
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unsigned char shaft_is_synchronized;
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int current_index;
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int toothed_previous_duration;
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int toothed_previous_time;
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} trigger_state_s;
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/**
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* @brief PWM configuration for the specific output pin
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*/
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typedef struct {
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int pinStates[PWM_PHASE_MAX_COUNT];
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} single_wave_s;
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typedef struct {
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/**
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* Number of events in the cycle
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*/
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int phaseCount;
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/**
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* Number of signal wires
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*/
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int waveCount;
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single_wave_s waves[PWM_PHASE_MAX_WAVE_PER_PWM];
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/**
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* values in the (0..1] range which refer to points within the period at at which pin state should be changed
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* So, in the simplest case we turn pin off at 0.3 and turn it on at 1 - that would give us a 70% duty cycle PWM
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*/
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float switchTimes[PWM_PHASE_MAX_COUNT];
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} multi_wave_s;
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typedef enum {
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TV_LOW = 0,
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TV_HIGH = 1
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} trigger_value_e;
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typedef enum {
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T_PRIMARY = 0,
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T_SECONDARY = 1
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} trigger_wheel_e;
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/**
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* @brief Trigger wheel(s) configuration
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*/
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typedef struct {
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trigger_type_e triggerType;
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int isSynchronizationNeeded;
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int totalToothCount;
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int skippedToothCount;
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float syncRatioFrom;
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float syncRatioTo;
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int useRiseEdge;
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} trigger_config_s;
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typedef struct {
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multi_wave_s wave;
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int size;
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/**
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* Total count of shaft events per CAM or CRANK shaft revolution.
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* TODO this should be migrated to CRANKshaft revolution, this would go together
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* TODO with eliminating RPM_MULT magic constant
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*/
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int shaftPositionEventCount;
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} trigger_shape_s;
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void clearTriggerState(trigger_state_s *state);
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void triggerShapeInit(trigger_shape_s *trigger);
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void triggerAddEvent(trigger_shape_s *trigger, float angle, trigger_wheel_e waveIndex, trigger_value_e state);
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void checkSwitchTimes(int size, float *switchTimes);
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#endif /* TRIGGER_STRUCTURE_H_ */
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