xiaozhi/main/boards/kevin-c3/kevin_c3_board.cc

#include "wifi_board.h"
#include "codecs/es8311_audio_codec.h"
#include "application.h"
#include "button.h"
#include "config.h"
#include "led/circular_strip.h"
#include "led_strip_control.h"

#include <wifi_station.h>
#include <esp_log.h>
#include <esp_efuse_table.h>
#include <driver/i2c_master.h>

#define TAG "KevinBoxBoard"

class KevinBoxBoard : public WifiBoard {
private:
    i2c_master_bus_handle_t codec_i2c_bus_;
    Button boot_button_;
    CircularStrip* led_strip_;

    void InitializeCodecI2c() {
        // Initialize I2C peripheral
        i2c_master_bus_config_t i2c_bus_cfg = {
            .i2c_port = I2C_NUM_0,
            .sda_io_num = AUDIO_CODEC_I2C_SDA_PIN,
            .scl_io_num = AUDIO_CODEC_I2C_SCL_PIN,
            .clk_source = I2C_CLK_SRC_DEFAULT,
            .glitch_ignore_cnt = 7,
            .intr_priority = 0,
            .trans_queue_depth = 0,
            .flags = {
                .enable_internal_pullup = 1,
            },
        };
        ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_bus_cfg, &codec_i2c_bus_));

        // Print I2C bus info
        if (i2c_master_probe(codec_i2c_bus_, 0x18, 1000) != ESP_OK) {
            while (true) {
                ESP_LOGE(TAG, "Failed to probe I2C bus, please check if you have installed the correct firmware");
                vTaskDelay(1000 / portTICK_PERIOD_MS);
            }
        }
    }

    void InitializeButtons() {
        boot_button_.OnClick([this]() {
            auto& app = Application::GetInstance();
            if (app.GetDeviceState() == kDeviceStateStarting && !WifiStation::GetInstance().IsConnected()) {
                ResetWifiConfiguration();
            }
        });
        boot_button_.OnPressDown([this]() {
            Application::GetInstance().StartListening();
        });
        boot_button_.OnPressUp([this]() {
            Application::GetInstance().StopListening();
        });
    }

    // 物联网初始化，添加对 AI 可见设备
    void InitializeTools() {
        led_strip_ = new CircularStrip(BUILTIN_LED_GPIO, 8);
        new LedStripControl(led_strip_);
    }

public:
    KevinBoxBoard() : boot_button_(BOOT_BUTTON_GPIO) {
        InitializeCodecI2c();
        InitializeButtons();
        InitializeTools();
        
        // 把 ESP32C3 的 VDD SPI 引脚作为普通 GPIO 口使用
        esp_efuse_write_field_bit(ESP_EFUSE_VDD_SPI_AS_GPIO);
    }

    virtual Led* GetLed() override {
        return led_strip_;
    }

    virtual AudioCodec* GetAudioCodec() override {
        static Es8311AudioCodec audio_codec(codec_i2c_bus_, I2C_NUM_0, AUDIO_INPUT_SAMPLE_RATE, AUDIO_OUTPUT_SAMPLE_RATE,
            AUDIO_I2S_GPIO_MCLK, AUDIO_I2S_GPIO_BCLK, AUDIO_I2S_GPIO_WS, AUDIO_I2S_GPIO_DOUT, AUDIO_I2S_GPIO_DIN,
            AUDIO_CODEC_PA_PIN, AUDIO_CODEC_ES8311_ADDR);
        return &audio_codec;
    }
};

DECLARE_BOARD(KevinBoxBoard);