xiaozhi/main/boards/esp32-s3-touch-lcd-1.85/esp32-s3-touch-lcd-1.85.cc

#include "wifi_board.h"
#include "codecs/no_audio_codec.h"
#include "display/lcd_display.h"
#include "system_reset.h"
#include "application.h"
#include "button.h"
#include "config.h"

#include <esp_log.h>
#include "i2c_device.h"
#include <driver/i2c_master.h>
#include <driver/ledc.h>
#include <wifi_station.h>
#include <esp_lcd_panel_io.h>
#include <esp_lcd_panel_ops.h>
#include <esp_lcd_st77916.h>
#include <esp_timer.h>
#include "esp_io_expander_tca9554.h"

#define TAG "waveshare_lcd_1_85"

#define LCD_OPCODE_WRITE_CMD        (0x02ULL)
#define LCD_OPCODE_READ_CMD         (0x0BULL)
#define LCD_OPCODE_WRITE_COLOR      (0x32ULL)

LV_FONT_DECLARE(font_puhui_16_4);
LV_FONT_DECLARE(font_awesome_16_4);

static const st77916_lcd_init_cmd_t vendor_specific_init_new[] = {
    {0xF0, (uint8_t []){0x28}, 1, 0},
    {0xF2, (uint8_t []){0x28}, 1, 0},
    {0x73, (uint8_t []){0xF0}, 1, 0},
    {0x7C, (uint8_t []){0xD1}, 1, 0},
    {0x83, (uint8_t []){0xE0}, 1, 0},
    {0x84, (uint8_t []){0x61}, 1, 0},
    {0xF2, (uint8_t []){0x82}, 1, 0},
    {0xF0, (uint8_t []){0x00}, 1, 0},
    {0xF0, (uint8_t []){0x01}, 1, 0},
    {0xF1, (uint8_t []){0x01}, 1, 0},
    {0xB0, (uint8_t []){0x56}, 1, 0},
    {0xB1, (uint8_t []){0x4D}, 1, 0},
    {0xB2, (uint8_t []){0x24}, 1, 0},
    {0xB4, (uint8_t []){0x87}, 1, 0},
    {0xB5, (uint8_t []){0x44}, 1, 0},
    {0xB6, (uint8_t []){0x8B}, 1, 0},
    {0xB7, (uint8_t []){0x40}, 1, 0},
    {0xB8, (uint8_t []){0x86}, 1, 0},
    {0xBA, (uint8_t []){0x00}, 1, 0},
    {0xBB, (uint8_t []){0x08}, 1, 0},
    {0xBC, (uint8_t []){0x08}, 1, 0},
    {0xBD, (uint8_t []){0x00}, 1, 0},
    {0xC0, (uint8_t []){0x80}, 1, 0},
    {0xC1, (uint8_t []){0x10}, 1, 0},
    {0xC2, (uint8_t []){0x37}, 1, 0},
    {0xC3, (uint8_t []){0x80}, 1, 0},
    {0xC4, (uint8_t []){0x10}, 1, 0},
    {0xC5, (uint8_t []){0x37}, 1, 0},
    {0xC6, (uint8_t []){0xA9}, 1, 0},
    {0xC7, (uint8_t []){0x41}, 1, 0},
    {0xC8, (uint8_t []){0x01}, 1, 0},
    {0xC9, (uint8_t []){0xA9}, 1, 0},
    {0xCA, (uint8_t []){0x41}, 1, 0},
    {0xCB, (uint8_t []){0x01}, 1, 0},
    {0xD0, (uint8_t []){0x91}, 1, 0},
    {0xD1, (uint8_t []){0x68}, 1, 0},
    {0xD2, (uint8_t []){0x68}, 1, 0},
    {0xF5, (uint8_t []){0x00, 0xA5}, 2, 0},
    {0xDD, (uint8_t []){0x4F}, 1, 0},
    {0xDE, (uint8_t []){0x4F}, 1, 0},
    {0xF1, (uint8_t []){0x10}, 1, 0},
    {0xF0, (uint8_t []){0x00}, 1, 0},
    {0xF0, (uint8_t []){0x02}, 1, 0},
    {0xE0, (uint8_t []){0xF0, 0x0A, 0x10, 0x09, 0x09, 0x36, 0x35, 0x33, 0x4A, 0x29, 0x15, 0x15, 0x2E, 0x34}, 14, 0},
    {0xE1, (uint8_t []){0xF0, 0x0A, 0x0F, 0x08, 0x08, 0x05, 0x34, 0x33, 0x4A, 0x39, 0x15, 0x15, 0x2D, 0x33}, 14, 0},
    {0xF0, (uint8_t []){0x10}, 1, 0},
    {0xF3, (uint8_t []){0x10}, 1, 0},
    {0xE0, (uint8_t []){0x07}, 1, 0},
    {0xE1, (uint8_t []){0x00}, 1, 0},
    {0xE2, (uint8_t []){0x00}, 1, 0},
    {0xE3, (uint8_t []){0x00}, 1, 0},
    {0xE4, (uint8_t []){0xE0}, 1, 0},
    {0xE5, (uint8_t []){0x06}, 1, 0},
    {0xE6, (uint8_t []){0x21}, 1, 0},
    {0xE7, (uint8_t []){0x01}, 1, 0},
    {0xE8, (uint8_t []){0x05}, 1, 0},
    {0xE9, (uint8_t []){0x02}, 1, 0},
    {0xEA, (uint8_t []){0xDA}, 1, 0},
    {0xEB, (uint8_t []){0x00}, 1, 0},
    {0xEC, (uint8_t []){0x00}, 1, 0},
    {0xED, (uint8_t []){0x0F}, 1, 0},
    {0xEE, (uint8_t []){0x00}, 1, 0},
    {0xEF, (uint8_t []){0x00}, 1, 0},
    {0xF8, (uint8_t []){0x00}, 1, 0},
    {0xF9, (uint8_t []){0x00}, 1, 0},
    {0xFA, (uint8_t []){0x00}, 1, 0},
    {0xFB, (uint8_t []){0x00}, 1, 0},
    {0xFC, (uint8_t []){0x00}, 1, 0},
    {0xFD, (uint8_t []){0x00}, 1, 0},
    {0xFE, (uint8_t []){0x00}, 1, 0},
    {0xFF, (uint8_t []){0x00}, 1, 0},
    {0x60, (uint8_t []){0x40}, 1, 0},
    {0x61, (uint8_t []){0x04}, 1, 0},
    {0x62, (uint8_t []){0x00}, 1, 0},
    {0x63, (uint8_t []){0x42}, 1, 0},
    {0x64, (uint8_t []){0xD9}, 1, 0},
    {0x65, (uint8_t []){0x00}, 1, 0},
    {0x66, (uint8_t []){0x00}, 1, 0},
    {0x67, (uint8_t []){0x00}, 1, 0},
    {0x68, (uint8_t []){0x00}, 1, 0},
    {0x69, (uint8_t []){0x00}, 1, 0},
    {0x6A, (uint8_t []){0x00}, 1, 0},
    {0x6B, (uint8_t []){0x00}, 1, 0},
    {0x70, (uint8_t []){0x40}, 1, 0},
    {0x71, (uint8_t []){0x03}, 1, 0},
    {0x72, (uint8_t []){0x00}, 1, 0},
    {0x73, (uint8_t []){0x42}, 1, 0},
    {0x74, (uint8_t []){0xD8}, 1, 0},
    {0x75, (uint8_t []){0x00}, 1, 0},
    {0x76, (uint8_t []){0x00}, 1, 0},
    {0x77, (uint8_t []){0x00}, 1, 0},
    {0x78, (uint8_t []){0x00}, 1, 0},
    {0x79, (uint8_t []){0x00}, 1, 0},
    {0x7A, (uint8_t []){0x00}, 1, 0},
    {0x7B, (uint8_t []){0x00}, 1, 0},
    {0x80, (uint8_t []){0x48}, 1, 0},
    {0x81, (uint8_t []){0x00}, 1, 0},
    {0x82, (uint8_t []){0x06}, 1, 0},
    {0x83, (uint8_t []){0x02}, 1, 0},
    {0x84, (uint8_t []){0xD6}, 1, 0},
    {0x85, (uint8_t []){0x04}, 1, 0},
    {0x86, (uint8_t []){0x00}, 1, 0},
    {0x87, (uint8_t []){0x00}, 1, 0},
    {0x88, (uint8_t []){0x48}, 1, 0},
    {0x89, (uint8_t []){0x00}, 1, 0},
    {0x8A, (uint8_t []){0x08}, 1, 0},
    {0x8B, (uint8_t []){0x02}, 1, 0},
    {0x8C, (uint8_t []){0xD8}, 1, 0},
    {0x8D, (uint8_t []){0x04}, 1, 0},
    {0x8E, (uint8_t []){0x00}, 1, 0},
    {0x8F, (uint8_t []){0x00}, 1, 0},
    {0x90, (uint8_t []){0x48}, 1, 0},
    {0x91, (uint8_t []){0x00}, 1, 0},
    {0x92, (uint8_t []){0x0A}, 1, 0},
    {0x93, (uint8_t []){0x02}, 1, 0},
    {0x94, (uint8_t []){0xDA}, 1, 0},
    {0x95, (uint8_t []){0x04}, 1, 0},
    {0x96, (uint8_t []){0x00}, 1, 0},
    {0x97, (uint8_t []){0x00}, 1, 0},
    {0x98, (uint8_t []){0x48}, 1, 0},
    {0x99, (uint8_t []){0x00}, 1, 0},
    {0x9A, (uint8_t []){0x0C}, 1, 0},
    {0x9B, (uint8_t []){0x02}, 1, 0},
    {0x9C, (uint8_t []){0xDC}, 1, 0},
    {0x9D, (uint8_t []){0x04}, 1, 0},
    {0x9E, (uint8_t []){0x00}, 1, 0},
    {0x9F, (uint8_t []){0x00}, 1, 0},
    {0xA0, (uint8_t []){0x48}, 1, 0},
    {0xA1, (uint8_t []){0x00}, 1, 0},
    {0xA2, (uint8_t []){0x05}, 1, 0},
    {0xA3, (uint8_t []){0x02}, 1, 0},
    {0xA4, (uint8_t []){0xD5}, 1, 0},
    {0xA5, (uint8_t []){0x04}, 1, 0},
    {0xA6, (uint8_t []){0x00}, 1, 0},
    {0xA7, (uint8_t []){0x00}, 1, 0},
    {0xA8, (uint8_t []){0x48}, 1, 0},
    {0xA9, (uint8_t []){0x00}, 1, 0},
    {0xAA, (uint8_t []){0x07}, 1, 0},
    {0xAB, (uint8_t []){0x02}, 1, 0},
    {0xAC, (uint8_t []){0xD7}, 1, 0},
    {0xAD, (uint8_t []){0x04}, 1, 0},
    {0xAE, (uint8_t []){0x00}, 1, 0},
    {0xAF, (uint8_t []){0x00}, 1, 0},
    {0xB0, (uint8_t []){0x48}, 1, 0},
    {0xB1, (uint8_t []){0x00}, 1, 0},
    {0xB2, (uint8_t []){0x09}, 1, 0},
    {0xB3, (uint8_t []){0x02}, 1, 0},
    {0xB4, (uint8_t []){0xD9}, 1, 0},
    {0xB5, (uint8_t []){0x04}, 1, 0},
    {0xB6, (uint8_t []){0x00}, 1, 0},
    {0xB7, (uint8_t []){0x00}, 1, 0},
    
    {0xB8, (uint8_t []){0x48}, 1, 0},
    {0xB9, (uint8_t []){0x00}, 1, 0},
    {0xBA, (uint8_t []){0x0B}, 1, 0},
    {0xBB, (uint8_t []){0x02}, 1, 0},
    {0xBC, (uint8_t []){0xDB}, 1, 0},
    {0xBD, (uint8_t []){0x04}, 1, 0},
    {0xBE, (uint8_t []){0x00}, 1, 0},
    {0xBF, (uint8_t []){0x00}, 1, 0},
    {0xC0, (uint8_t []){0x10}, 1, 0},
    {0xC1, (uint8_t []){0x47}, 1, 0},
    {0xC2, (uint8_t []){0x56}, 1, 0},
    {0xC3, (uint8_t []){0x65}, 1, 0},
    {0xC4, (uint8_t []){0x74}, 1, 0},
    {0xC5, (uint8_t []){0x88}, 1, 0},
    {0xC6, (uint8_t []){0x99}, 1, 0},
    {0xC7, (uint8_t []){0x01}, 1, 0},
    {0xC8, (uint8_t []){0xBB}, 1, 0},
    {0xC9, (uint8_t []){0xAA}, 1, 0},
    {0xD0, (uint8_t []){0x10}, 1, 0},
    {0xD1, (uint8_t []){0x47}, 1, 0},
    {0xD2, (uint8_t []){0x56}, 1, 0},
    {0xD3, (uint8_t []){0x65}, 1, 0},
    {0xD4, (uint8_t []){0x74}, 1, 0},
    {0xD5, (uint8_t []){0x88}, 1, 0},
    {0xD6, (uint8_t []){0x99}, 1, 0},
    {0xD7, (uint8_t []){0x01}, 1, 0},
    {0xD8, (uint8_t []){0xBB}, 1, 0},
    {0xD9, (uint8_t []){0xAA}, 1, 0},
    {0xF3, (uint8_t []){0x01}, 1, 0},
    {0xF0, (uint8_t []){0x00}, 1, 0},
    {0x21, (uint8_t []){0x00}, 1, 0},
    {0x11, (uint8_t []){0x00}, 1, 120},
    {0x29, (uint8_t []){0x00}, 1, 0},  
};
class CustomBoard : public WifiBoard {
private:
    i2c_master_bus_handle_t i2c_bus_;
    esp_io_expander_handle_t io_expander = NULL;
    LcdDisplay* display_;
    button_handle_t boot_btn, pwr_btn;
    button_driver_t* boot_btn_driver_ = nullptr;
    button_driver_t* pwr_btn_driver_ = nullptr;
    static CustomBoard* instance_;


    void InitializeI2c() {
        // Initialize I2C peripheral
        i2c_master_bus_config_t i2c_bus_cfg = {
            .i2c_port = (i2c_port_t)0,
            .sda_io_num = I2C_SDA_IO,
            .scl_io_num = I2C_SCL_IO,
            .clk_source = I2C_CLK_SRC_DEFAULT,
        };
        ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_bus_cfg, &i2c_bus_));
    }
    
    void InitializeTca9554(void) {
        esp_err_t ret = esp_io_expander_new_i2c_tca9554(i2c_bus_, I2C_ADDRESS, &io_expander);
        if(ret != ESP_OK)
            ESP_LOGE(TAG, "TCA9554 create returned error");        

        // uint32_t input_level_mask = 0;
        // ret = esp_io_expander_set_dir(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, IO_EXPANDER_INPUT);               // 设置引脚 EXIO0 和 EXIO1 模式为输入 
        // ret = esp_io_expander_get_level(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, &input_level_mask);             // 获取引脚 EXIO0 和 EXIO1 的电平状态,存放在 input_level_mask 中

        // ret = esp_io_expander_set_dir(io_expander, IO_EXPANDER_PIN_NUM_2 | IO_EXPANDER_PIN_NUM_3, IO_EXPANDER_OUTPUT);              // 设置引脚 EXIO2 和 EXIO3 模式为输出
        // ret = esp_io_expander_set_level(io_expander, IO_EXPANDER_PIN_NUM_2 | IO_EXPANDER_PIN_NUM_3, 1);                             // 将引脚电平设置为 1
        // ret = esp_io_expander_print_state(io_expander);                                                                             // 打印引脚状态

        ret = esp_io_expander_set_dir(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, IO_EXPANDER_OUTPUT);                 // 设置引脚 EXIO0 和 EXIO1 模式为输出
        ESP_ERROR_CHECK(ret);
        ret = esp_io_expander_set_level(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, 1);                                // 复位 LCD 与 TouchPad
        ESP_ERROR_CHECK(ret);
        vTaskDelay(pdMS_TO_TICKS(300));
        ret = esp_io_expander_set_level(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, 0);                                // 复位 LCD 与 TouchPad
        ESP_ERROR_CHECK(ret);
        vTaskDelay(pdMS_TO_TICKS(300));
        ret = esp_io_expander_set_level(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, 1);                                // 复位 LCD 与 TouchPad
        ESP_ERROR_CHECK(ret);
    }

    void InitializeSpi() {
        ESP_LOGI(TAG, "Initialize QSPI bus");

        const spi_bus_config_t bus_config = TAIJIPI_ST77916_PANEL_BUS_QSPI_CONFIG(QSPI_PIN_NUM_LCD_PCLK,
                                                                        QSPI_PIN_NUM_LCD_DATA0,
                                                                        QSPI_PIN_NUM_LCD_DATA1,
                                                                        QSPI_PIN_NUM_LCD_DATA2,
                                                                        QSPI_PIN_NUM_LCD_DATA3,
                                                                        QSPI_LCD_H_RES * 80 * sizeof(uint16_t));
        ESP_ERROR_CHECK(spi_bus_initialize(QSPI_LCD_HOST, &bus_config, SPI_DMA_CH_AUTO));
    }

    void Initializest77916Display() {

        esp_lcd_panel_io_handle_t panel_io = nullptr;
        esp_lcd_panel_handle_t panel = nullptr;

        ESP_LOGI(TAG, "Install panel IO");
        
        esp_lcd_panel_io_spi_config_t io_config = {
            .cs_gpio_num = QSPI_PIN_NUM_LCD_CS,               
            .dc_gpio_num = -1,                  
            .spi_mode = 0,                     
            .pclk_hz = 3 * 1000 * 1000,      
            .trans_queue_depth = 10,            
            .on_color_trans_done = NULL,                            
            .user_ctx = NULL,                   
            .lcd_cmd_bits = 32,                 
            .lcd_param_bits = 8,                
            .flags = {                          
            .dc_low_on_data = 0,            
            .octal_mode = 0,                
            .quad_mode = 1,                 
            .sio_mode = 0,                  
            .lsb_first = 0,                 
            .cs_high_active = 0,            
            },                                  
        };
        ESP_ERROR_CHECK(esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)QSPI_LCD_HOST, &io_config, &panel_io));

        ESP_LOGI(TAG, "Install ST77916 panel driver");
        
        st77916_vendor_config_t vendor_config = {
            .flags = {
                .use_qspi_interface = 1,
            },
        };
        
        printf("-------------------------------------- Version selection -------------------------------------- \r\n");
        esp_err_t ret;
        int lcd_cmd = 0x04;
        uint8_t register_data[4]; 
        size_t param_size = sizeof(register_data);
        lcd_cmd &= 0xff;
        lcd_cmd <<= 8;
        lcd_cmd |= LCD_OPCODE_READ_CMD << 24;  // Use the read opcode instead of write
        ret = esp_lcd_panel_io_rx_param(panel_io, lcd_cmd, register_data, param_size); 
        if (ret == ESP_OK) {
            printf("Register 0x04 data: %02x %02x %02x %02x\n", register_data[0], register_data[1], register_data[2], register_data[3]);
        } else {
            printf("Failed to read register 0x04, error code: %d\n", ret);
        } 
        // panel_io_spi_del(io_handle);
        io_config.pclk_hz = 80 * 1000 * 1000;
        if (esp_lcd_new_panel_io_spi((esp_lcd_spi_bus_handle_t)QSPI_LCD_HOST, &io_config, &panel_io) != ESP_OK){
            printf("Failed to set LCD communication parameters -- SPI\r\n");
            return ;
        }
        printf("LCD communication parameters are set successfully -- SPI\r\n");
        
        // Check register values and configure accordingly
        if (register_data[0] == 0x00 && register_data[1] == 0x7F && register_data[2] == 0x7F && register_data[3] == 0x7F) {
            // Handle the case where the register data matches this pattern
            printf("Vendor-specific initialization for case 1.\n");
        }
        else if (register_data[0] == 0x00 && register_data[1] == 0x02 && register_data[2] == 0x7F && register_data[3] == 0x7F) {
            // Provide vendor-specific initialization commands if register data matches this pattern
            vendor_config.init_cmds = vendor_specific_init_new;
            vendor_config.init_cmds_size = sizeof(vendor_specific_init_new) / sizeof(st77916_lcd_init_cmd_t);
            printf("Vendor-specific initialization for case 2.\n");
        }
        printf("------------------------------------- End of version selection------------------------------------- \r\n");
 
        const esp_lcd_panel_dev_config_t panel_config = {
            .reset_gpio_num = QSPI_PIN_NUM_LCD_RST,
            .rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB,     // Implemented by LCD command `36h`
            .bits_per_pixel = QSPI_LCD_BIT_PER_PIXEL,    // Implemented by LCD command `3Ah` (16/18)
            .vendor_config = &vendor_config,
        };
        ESP_ERROR_CHECK(esp_lcd_new_panel_st77916(panel_io, &panel_config, &panel));

        esp_lcd_panel_reset(panel);
        esp_lcd_panel_init(panel);
        esp_lcd_panel_disp_on_off(panel, true);
        esp_lcd_panel_swap_xy(panel, DISPLAY_SWAP_XY);
        esp_lcd_panel_mirror(panel, DISPLAY_MIRROR_X, DISPLAY_MIRROR_Y);

        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,
                                    {
                                        .text_font = &font_puhui_16_4,
                                        .icon_font = &font_awesome_16_4,
                                        .emoji_font = font_emoji_64_init(),
                                    });
    }
 
    void InitializeButtonsCustom() {
        gpio_reset_pin(BOOT_BUTTON_GPIO);                                     
        gpio_set_direction(BOOT_BUTTON_GPIO, GPIO_MODE_INPUT);   
        gpio_reset_pin(PWR_BUTTON_GPIO);                                     
        gpio_set_direction(PWR_BUTTON_GPIO, GPIO_MODE_INPUT);   
        gpio_reset_pin(PWR_Control_PIN);                                     
        gpio_set_direction(PWR_Control_PIN, GPIO_MODE_OUTPUT);    
        // gpio_set_level(PWR_Control_PIN, false);
        gpio_set_level(PWR_Control_PIN, true); 
    }
    void InitializeButtons() {
        instance_ = this;
        InitializeButtonsCustom();

        // Boot Button
        button_config_t boot_btn_config = {
            .long_press_time = 2000,
            .short_press_time = 0
        };
        boot_btn_driver_ = (button_driver_t*)calloc(1, sizeof(button_driver_t));
        boot_btn_driver_->enable_power_save = false;
        boot_btn_driver_->get_key_level = [](button_driver_t *button_driver) -> uint8_t {
            return !gpio_get_level(BOOT_BUTTON_GPIO);
        };
        ESP_ERROR_CHECK(iot_button_create(&boot_btn_config, boot_btn_driver_, &boot_btn));
        iot_button_register_cb(boot_btn, BUTTON_SINGLE_CLICK, nullptr, [](void* button_handle, void* usr_data) {
            auto self = static_cast<CustomBoard*>(usr_data);
            auto& app = Application::GetInstance();
            if (app.GetDeviceState() == kDeviceStateStarting && !WifiStation::GetInstance().IsConnected()) {
                self->ResetWifiConfiguration();
            }
            app.ToggleChatState();
        }, this);

        // Power Button
        button_config_t pwr_btn_config = {
            .long_press_time = 5000,
            .short_press_time = 0
        };
        pwr_btn_driver_ = (button_driver_t*)calloc(1, sizeof(button_driver_t));
        pwr_btn_driver_->enable_power_save = false;
        pwr_btn_driver_->get_key_level = [](button_driver_t *button_driver) -> uint8_t {
            return !gpio_get_level(PWR_BUTTON_GPIO);
        };
        ESP_ERROR_CHECK(iot_button_create(&pwr_btn_config, pwr_btn_driver_, &pwr_btn));
        iot_button_register_cb(pwr_btn, BUTTON_LONG_PRESS_START, nullptr, [](void* button_handle, void* usr_data) {
            auto self = static_cast<CustomBoard*>(usr_data);
            if(self->GetBacklight()->brightness() > 0) {
                self->GetBacklight()->SetBrightness(0);
                gpio_set_level(PWR_Control_PIN, false);
            }
            else {
                self->GetBacklight()->RestoreBrightness();
                gpio_set_level(PWR_Control_PIN, true);
            }
        }, this);
    }

public:
    CustomBoard() {   
        InitializeI2c();
        InitializeTca9554();
        InitializeSpi();
        Initializest77916Display();
        InitializeButtons();
        GetBacklight()->RestoreBrightness();
    }

    virtual AudioCodec* GetAudioCodec() override {
        static NoAudioCodecSimplex audio_codec(AUDIO_INPUT_SAMPLE_RATE, AUDIO_OUTPUT_SAMPLE_RATE,
            AUDIO_I2S_SPK_GPIO_BCLK, AUDIO_I2S_SPK_GPIO_LRCK, AUDIO_I2S_SPK_GPIO_DOUT, I2S_STD_SLOT_BOTH, AUDIO_I2S_MIC_GPIO_SCK, AUDIO_I2S_MIC_GPIO_WS, AUDIO_I2S_MIC_GPIO_DIN, I2S_STD_SLOT_RIGHT); // I2S_STD_SLOT_LEFT / I2S_STD_SLOT_RIGHT / I2S_STD_SLOT_BOTH

        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(CustomBoard);

CustomBoard* CustomBoard::instance_ = nullptr;