xiaozhi/main/audio/codecs/es8374_audio_codec.h

#ifndef _ES8374_AUDIO_CODEC_H
#define _ES8374_AUDIO_CODEC_H

#include "audio_codec.h"

#include <driver/i2c.h>
#include <driver/gpio.h>
#include <esp_codec_dev.h>
#include <esp_codec_dev_defaults.h>

class Es8374AudioCodec : public AudioCodec {
private:
    const audio_codec_data_if_t* data_if_ = nullptr;
    const audio_codec_ctrl_if_t* ctrl_if_ = nullptr;
    const audio_codec_if_t* codec_if_ = nullptr;
    const audio_codec_gpio_if_t* gpio_if_ = nullptr;

    esp_codec_dev_handle_t output_dev_ = nullptr;
    esp_codec_dev_handle_t input_dev_ = nullptr;
    gpio_num_t pa_pin_ = GPIO_NUM_NC;

    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);

    virtual int Read(int16_t* dest, int samples) override;
    virtual int Write(const int16_t* data, int samples) override;

public:
    Es8374AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
        gpio_num_t pa_pin, uint8_t es8374_addr, bool use_mclk = true);
    virtual ~Es8374AudioCodec();

    virtual void SetOutputVolume(int volume) override;
    virtual void EnableInput(bool enable) override;
    virtual void EnableOutput(bool enable) override;
};

#endif // _ES8374_AUDIO_CODEC_H