85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/**
|
|
* @file pwm_generator_logic.h
|
|
*
|
|
* @date Mar 2, 2014
|
|
* @author Andrey Belomutskiy, (c) 2012-2014
|
|
*/
|
|
|
|
#ifndef PWM_GENERATOR_LOGIC_H_
|
|
#define PWM_GENERATOR_LOGIC_H_
|
|
|
|
#include "global.h"
|
|
#include "trigger_structure.h"
|
|
#include "io_pins.h"
|
|
#include "signal_executor.h"
|
|
|
|
typedef struct {
|
|
/**
|
|
* a copy so that all phases are executed on the same period, even if another thread
|
|
* would be adjusting PWM parameters
|
|
*/
|
|
float periodMs;
|
|
/**
|
|
* Iteration counter
|
|
*/
|
|
int iteration;
|
|
/**
|
|
* Start time of current iteration
|
|
*/
|
|
uint64_t startUs;
|
|
int phaseIndex;
|
|
} pwm_config_safe_state_s;
|
|
|
|
typedef struct PwmConfig_struct PwmConfig;
|
|
|
|
typedef void (pwm_cycle_callback)(PwmConfig *state);
|
|
typedef void (pwm_gen_callback)(PwmConfig *state, int stateIndex);
|
|
|
|
/**
|
|
* @brief Multi-channel software PWM output configuration
|
|
*/
|
|
struct PwmConfig_struct {
|
|
io_pin_e outputPins[PWM_PHASE_MAX_WAVE_PER_PWM];
|
|
multi_wave_s multiWave;
|
|
char *name;
|
|
/**
|
|
* float value of PWM period
|
|
* PWM generation is not happening while this value is zero
|
|
*/
|
|
float periodMs;
|
|
|
|
scheduling_s scheduling;
|
|
|
|
pwm_config_safe_state_s safe;
|
|
|
|
/**
|
|
* this callback is invoked before each wave generation cycle
|
|
*/
|
|
pwm_cycle_callback *cycleCallback;
|
|
|
|
/**
|
|
* this main callback is invoked when it's time to switch level on amy of the output channels
|
|
*/
|
|
pwm_gen_callback *stateChangeCallback;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif /* __cplusplus */
|
|
|
|
void copyPwmParameters(PwmConfig *state, int phaseCount, float *switchTimes,
|
|
int waveCount, int **pinStates);
|
|
|
|
void weComplexInit(char *msg, PwmConfig *state,
|
|
int phaseCount, float *swithcTimes, int waveCount, int **pinStates,
|
|
pwm_cycle_callback *cycleCallback,
|
|
pwm_gen_callback *callback);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#endif /* PWM_GENERATOR_LOGIC_H_ */
|