wave_gen.h

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#pragma once
 
#include "esp_err.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    WAVE_TYPE_SINE = 0,
    WAVE_TYPE_SQUARE,
    WAVE_TYPE_TRIANGLE,
    WAVE_TYPE_SAWTOOTH
} wave_type_t;

typedef struct {
    int bck_io_num;      
    int ws_io_num;       
    int data_out_num;    
    int mck_io_num;      
    uint32_t sample_rate;
} wave_gen_config_t;

esp_err_t wave_gen_init(const wave_gen_config_t *config);

esp_err_t wave_gen_start(void);

esp_err_t wave_gen_stop(void);

void wave_gen_set_freq(float freq_hz);

void wave_gen_set_type(wave_type_t type);

void wave_gen_set_volume(float volume);

esp_err_t wave_gen_sdm_start(void);

esp_err_t wave_gen_sdm_stop(void);
 
#ifdef __cplusplus
}
#endif