mirror of https://github.com/rusefi/rusefi-1.git
102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
/**
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* @file pwm_generator_logic.h
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*
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* @date Mar 2, 2014
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* @author Andrey Belomutskiy, (c) 2012-2017
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*/
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#ifndef PWM_GENERATOR_LOGIC_H_
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#define PWM_GENERATOR_LOGIC_H_
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#include "global.h"
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#include "EfiWave.h"
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#include "scheduler.h"
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#include "efiGpio.h"
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typedef struct {
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/**
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* a copy so that all phases are executed on the same period, even if another thread
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* would be adjusting PWM parameters
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*/
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float periodNt;
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/**
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* Iteration counter
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*/
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int iteration;
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/**
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* Start time of current iteration
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*/
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efitick_t startNt;
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int phaseIndex;
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} pwm_config_safe_state_s;
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class PwmConfig;
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typedef void (pwm_cycle_callback)(PwmConfig *state);
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typedef void (pwm_gen_callback)(PwmConfig *state, int stateIndex);
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/**
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* @brief Multi-channel software PWM output configuration
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*/
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class PwmConfig {
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public:
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PwmConfig();
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PwmConfig(float *switchTimes, single_wave_s *waves);
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void baseConstructor();
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void init(float *switchTimes, single_wave_s *waves);
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void weComplexInit(const char *msg,
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int phaseCount, float *swithcTimes, int waveCount, pin_state_t **pinStates,
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pwm_cycle_callback *cycleCallback,
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pwm_gen_callback *callback);
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void handleCycleStart();
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OutputPin *outputPins[PWM_PHASE_MAX_WAVE_PER_PWM];
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multi_wave_s multiWave;
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/**
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* float value of PWM period
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* PWM generation is not happening while this value is zero
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*/
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float periodNt;
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int dbgNestingLevel;
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scheduling_s scheduling;
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pwm_config_safe_state_s safe;
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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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* this callback is invoked before each wave generation cycle
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*/
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pwm_cycle_callback *cycleCallback;
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/**
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* this main callback is invoked when it's time to switch level on any of the output channels
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*/
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pwm_gen_callback *stateChangeCallback;
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};
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class SimplePwm : public PwmConfig {
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public:
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SimplePwm();
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void setSimplePwmDutyCycle(float dutyCycle);
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pin_state_t pinStates[2];
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single_wave_s sr[1];
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float _switchTimes[2];
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private:
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single_wave_s waveInstance;
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};
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void copyPwmParameters(PwmConfig *state, int phaseCount, float *switchTimes,
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int waveCount, pin_state_t **pinStates);
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#endif /* PWM_GENERATOR_LOGIC_H_ */
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