Function _setup_codec_mic

boards/m5stack-cardputer/interface.cpp:492–522

** Function: _setup_codec_mic ** location: modules/others/mic.cpp ** Handles audio CODEC to enable/disable microphone **********************************************************************/

** Handles audio CODEC to enable/disable microphone
**********************************************************************/
void _setup_codec_mic(bool enable) {
    if (!UseTCA8418) return;
    // Set microfone pin for ADV
    mic_bclk_pin = (gpio_num_t)41;

    static constexpr const uint8_t enabled_bulk_data[] = {
        2, 0x00, 0x80, // 0x00 RESET/  CSM POWER ON
        2, 0x01, 0xBA, // 0x01 CLOCK_MANAGER/ MCLK=BCLK
        2, 0x02, 0x18, // 0x02 CLOCK_MANAGER/ MULT_PRE=3
        2, 0x0D, 0x01, // 0x0D SYSTEM/ Power up analog circuitry
        2, 0x0E, 0x02, // 0x0E SYSTEM/ : Enable analog PGA, enable ADC modulator
        2, 0x14, 0x10, // ES8311_ADC_REG14 : select Mic1p-Mic1n / PGA GAIN (minimum)
        2, 0x17, 0xBF, // ES8311_ADC_REG17 : ADC_VOLUME 0xBF == ± 0 dB
        2, 0x1C, 0x6A, // ES8311_ADC_REG1C : ADC Equalizer bypass, cancel DC offset in digital domain
        0
    };
    static constexpr const uint8_t disabled_bulk_data[] = {
        2,
        0x0D,
        0xFC, // 0x0D SYSTEM/ Power down analog circuitry
        2,
        0x0E,
        0x6A, // 0x0E SYSTEM
        2,
        0x00,
        0x00, // 0x00 RESET/  CSM POWER DOWN
        0
    };

    i2c_bulk_write(&Wire1, ES8311_ADDR, enable ? enabled_bulk_data : disabled_bulk_data);
}