PWMConfigZephyr.h

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#pragma once
 
#include "stdint.h"
#include "vector"
#include <zephyr/drivers/pwm.h>
 
#define PWM_PIN(pin_label) PWM_DT_SPEC_GET(DT_NODELABEL(pin_label))
 
namespace audio_tools {
struct PWMConfigZephyr : public AudioInfo {
  PWMConfigZephyr() {
    // default basic information
    sample_rate = 8000u;  // sample rate in Hz
    channels = 1;
    bits_per_sample = 16;
  }
 
  uint16_t buffer_size = PWM_BUFFER_SIZE;
  uint8_t buffers = PWM_BUFFER_COUNT;
 
  uint32_t pwm_frequency = 0;  // audable range is from 20 to
 
  uint8_t resolution = 8;
 
  uint32_t max_sample_rate = PWM_MAX_SAMPLE_RATE;
 
  std::vector<pwm_dt_spec> pins;
 
  void logConfig() {
    LOGI("sample_rate: %d", (int) sample_rate);
    LOGI("channels: %d", channels);
    LOGI("bits_per_sample: %u", bits_per_sample);
    LOGI("buffer_size: %u", buffer_size);
    LOGI("buffer_count: %u", buffers);
    LOGI("pwm_frequency: %u", (unsigned)pwm_frequency);
    LOGI("resolution: %d", resolution);
    LOGI("pwm pin count: %d", pins.size());
  }
};
 
using PWMConfig = PWMConfigZephyr;
 
}