xiaozhi-esp32/main/boards/esp-box-lite/esp_box_lite_board.cc

#include "wifi_board.h"
#include "box_audio_codec_lite.h"
#include "display/lcd_display.h"
#include "esp_lcd_ili9341.h"
#include "application.h"
#include "button.h"
#include "config.h"
#include "assets/lang_config.h"

#include <esp_log.h>
#include <button_adc.h>
#include <esp_lcd_panel_vendor.h>
#include <driver/i2c_master.h>
#include <driver/spi_common.h>

#define TAG "EspBoxBoardLite"

/* ADC Buttons */
typedef enum {
    BSP_ADC_BUTTON_PREV,
    BSP_ADC_BUTTON_ENTER,
    BSP_ADC_BUTTON_NEXT,
    BSP_ADC_BUTTON_NUM
} bsp_adc_button_t;

// Init ili9341 by custom cmd
static const ili9341_lcd_init_cmd_t vendor_specific_init[] = {
    {0xC8, (uint8_t []){0xFF, 0x93, 0x42}, 3, 0},
    {0xC0, (uint8_t []){0x0E, 0x0E}, 2, 0},
    {0xC5, (uint8_t []){0xD0}, 1, 0},
    {0xC1, (uint8_t []){0x02}, 1, 0},
    {0xB4, (uint8_t []){0x02}, 1, 0},
    {0xE0, (uint8_t []){0x00, 0x03, 0x08, 0x06, 0x13, 0x09, 0x39, 0x39, 0x48, 0x02, 0x0a, 0x08, 0x17, 0x17, 0x0F}, 15, 0},
    {0xE1, (uint8_t []){0x00, 0x28, 0x29, 0x01, 0x0d, 0x03, 0x3f, 0x33, 0x52, 0x04, 0x0f, 0x0e, 0x37, 0x38, 0x0F}, 15, 0},

    {0xB1, (uint8_t []){00, 0x1B}, 2, 0},
    {0x36, (uint8_t []){0x08}, 1, 0},
    {0x3A, (uint8_t []){0x55}, 1, 0},
    {0xB7, (uint8_t []){0x06}, 1, 0},

    {0x11, (uint8_t []){0}, 0x80, 0},
    {0x29, (uint8_t []){0}, 0x80, 0},

    {0, (uint8_t []){0}, 0xff, 0},
};

class EspBoxBoardLite : public WifiBoard {
private:
    i2c_master_bus_handle_t i2c_bus_;
    Button boot_button_;
    Button* adc_button_[BSP_ADC_BUTTON_NUM];
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
    adc_oneshot_unit_handle_t bsp_adc_handle = NULL;
#endif
    LcdDisplay* display_;

    void InitializeI2c() {
        // Initialize I2C peripheral
        i2c_master_bus_config_t i2c_bus_cfg = {
            .i2c_port = (i2c_port_t)1,
            .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, &i2c_bus_));
    }

    void InitializeSpi() {
        spi_bus_config_t buscfg = {};
        buscfg.mosi_io_num = GPIO_NUM_6;
        buscfg.miso_io_num = GPIO_NUM_NC;
        buscfg.sclk_io_num = GPIO_NUM_7;
        buscfg.quadwp_io_num = GPIO_NUM_NC;
        buscfg.quadhd_io_num = GPIO_NUM_NC;
        buscfg.max_transfer_sz = DISPLAY_WIDTH * DISPLAY_HEIGHT * sizeof(uint16_t);
        ESP_ERROR_CHECK(spi_bus_initialize(SPI3_HOST, &buscfg, SPI_DMA_CH_AUTO));
    }

    void ChangeVol(int val) {
        auto codec = GetAudioCodec();
        auto volume = codec->output_volume() + val;
        if (volume > 100) {
            volume = 100;
        }
        if (volume < 0) {
            volume = 0;
        }
        codec->SetOutputVolume(volume);
        GetDisplay()->ShowNotification(Lang::Strings::VOLUME + std::to_string(volume));
    }
    
    void TogleState() {
        auto& app = Application::GetInstance();
        if (app.GetDeviceState() == kDeviceStateStarting) {
                EnterWifiConfigMode();
                return;
            }
        app.ToggleChatState();        
    }

    void InitializeButtons() {
        /* Initialize ADC  esp-box lite的前三个按钮采用是的adc按钮，而非gpio */
        button_adc_config_t adc_cfg = {};
        adc_cfg.adc_channel = ADC_CHANNEL_0; // ADC1 channel 0 is GPIO1
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)        
        const adc_oneshot_unit_init_cfg_t init_config1 = {
            .unit_id = ADC_UNIT_1,
        };
        adc_oneshot_new_unit(&init_config1, &bsp_adc_handle);
        adc_cfg.adc_handle = &bsp_adc_handle;
#endif
        adc_cfg.button_index = BSP_ADC_BUTTON_PREV;
        adc_cfg.min = 2310; // middle is 2410mV
        adc_cfg.max = 2510;
        adc_button_[0] = new AdcButton(adc_cfg);

        adc_cfg.button_index = BSP_ADC_BUTTON_ENTER;
        adc_cfg.min = 1880; // middle is 1980mV
        adc_cfg.max = 2080;
        adc_button_[1] = new AdcButton(adc_cfg);

        adc_cfg.button_index = BSP_ADC_BUTTON_NEXT;
        adc_cfg.min = 720; // middle is 820mV
        adc_cfg.max = 920;

        adc_button_[2] = new AdcButton(adc_cfg);

        auto volume_up_button = adc_button_[BSP_ADC_BUTTON_NEXT];
        volume_up_button->OnClick([this]() {ChangeVol(10);});
        volume_up_button->OnLongPress([this]() {
            GetAudioCodec()->SetOutputVolume(100);
            GetDisplay()->ShowNotification(Lang::Strings::MAX_VOLUME);
        });

        auto volume_down_button = adc_button_[BSP_ADC_BUTTON_PREV];
        volume_down_button->OnClick([this]() {ChangeVol(-10);});
        volume_down_button->OnLongPress([this]() {
            GetAudioCodec()->SetOutputVolume(0);
            GetDisplay()->ShowNotification(Lang::Strings::MUTED);
        });

        auto break_button = adc_button_[BSP_ADC_BUTTON_ENTER];
        break_button->OnClick([this]() {TogleState();});
        boot_button_.OnClick([this]() {TogleState();});
    }

    void InitializeIli9341Display() {
        esp_lcd_panel_io_handle_t panel_io = nullptr;
        esp_lcd_panel_handle_t panel = nullptr;

        // 液晶屏控制IO初始化
        ESP_LOGD(TAG, "Install panel IO");
        esp_lcd_panel_io_spi_config_t io_config = {};
        io_config.cs_gpio_num = GPIO_NUM_5;
        io_config.dc_gpio_num = GPIO_NUM_4;
        io_config.spi_mode = 0;
        io_config.pclk_hz = 40 * 1000 * 1000;
        io_config.trans_queue_depth = 10;
        io_config.lcd_cmd_bits = 8;
        io_config.lcd_param_bits = 8;
        ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi(SPI3_HOST, &io_config, &panel_io));

        // 初始化液晶屏驱动芯片
        ESP_LOGD(TAG, "Install LCD driver");
        const ili9341_vendor_config_t vendor_config = {
            .init_cmds = &vendor_specific_init[0],
            .init_cmds_size = sizeof(vendor_specific_init) / sizeof(ili9341_lcd_init_cmd_t),
        };

        esp_lcd_panel_dev_config_t panel_config = {};
        panel_config.reset_gpio_num = GPIO_NUM_48;
        panel_config.flags.reset_active_high = 0,
        panel_config.rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB;
        panel_config.bits_per_pixel = 16;
        panel_config.vendor_config = (void *)&vendor_config;
        ESP_ERROR_CHECK(esp_lcd_new_panel_ili9341(panel_io, &panel_config, &panel));
        
        esp_lcd_panel_reset(panel);
        esp_lcd_panel_init(panel);
        esp_lcd_panel_invert_color(panel, DISPLAY_BACKLIGHT_OUTPUT_INVERT);
        esp_lcd_panel_swap_xy(panel, DISPLAY_SWAP_XY);
        esp_lcd_panel_mirror(panel, DISPLAY_MIRROR_X, DISPLAY_MIRROR_Y);
        esp_lcd_panel_disp_on_off(panel, true);
        display_ = new SpiLcdDisplay(panel_io, panel,
                                    DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_OFFSET_X, DISPLAY_OFFSET_Y, DISPLAY_MIRROR_X, DISPLAY_MIRROR_Y, DISPLAY_SWAP_XY);
    }

public:
    EspBoxBoardLite() : boot_button_(BOOT_BUTTON_GPIO) {
        InitializeI2c();
        InitializeSpi();
        InitializeIli9341Display();
        InitializeButtons();
        GetBacklight()->RestoreBrightness();
    }

    ~EspBoxBoardLite() {
        for (int i =0; i<BSP_ADC_BUTTON_NUM; i++) {
            if (adc_button_[i]) {
                delete adc_button_[i];
                adc_button_[i] = nullptr;
            }
        }
    }

    virtual AudioCodec* GetAudioCodec() override {
        static BoxAudioCodecLite audio_codec(
            i2c_bus_, 
            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_INPUT_REFERENCE);
        return &audio_codec;
    }

    virtual Display* GetDisplay() override {
        return display_;
    }

    virtual Backlight* GetBacklight() override {
        static PwmBacklight backlight(DISPLAY_BACKLIGHT_PIN, DISPLAY_BACKLIGHT_OUTPUT_INVERT);
        return &backlight;
    }
};

DECLARE_BOARD(EspBoxBoardLite);