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esp32: support mic gain on LyraT v4.3 board

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This commit is contained in:
Matthias Ringwald 2021-12-28 18:56:53 +01:00
parent 2668b53221
commit 0e9aac8b6b
1 changed files with 7 additions and 1 deletions
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8
port/esp32/components/btstack/btstack_audio_esp32.c
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@ -132,7 +132,7 @@ void btstack_audio_esp32_es8388_init(void){
static void btstack_audio_esp32_driver_timer_handler(btstack_timer_source_t * ts){ static void btstack_audio_esp32_driver_timer_handler(btstack_timer_source_t * ts){
// read from i2s event queue // read from i2s event queue
i2s_event_t i2s_event; i2s_event_t i2s_event;
if( xQueueReceive( btstack_audio_esp32_i2s_event_queue, &i2s_event, 0) ){ while( xQueueReceive( btstack_audio_esp32_i2s_event_queue, &i2s_event, 0) ){
// fill buffer when DMA buffer was sent // fill buffer when DMA buffer was sent
if (i2s_event.type == I2S_EVENT_TX_DONE){ if (i2s_event.type == I2S_EVENT_TX_DONE){
btstack_audio_esp32_sink_fill_buffer(); btstack_audio_esp32_sink_fill_buffer();
@ -407,7 +407,13 @@ static int btstack_audio_esp32_source_init(
} }
static void btstack_audio_esp32_source_set_gain(uint8_t gain) { static void btstack_audio_esp32_source_set_gain(uint8_t gain) {
#ifdef CONFIG_ESP_LYRAT_V4_3_BOARD
// ES8388 supports 0..24 dB gain in 3 dB steps
uint8_t gain_db = (uint8_t) ( ((uint16_t) gain) * 24 / 127);
es8388_set_mic_gain( (es_codec_mic_gain_t) gain_db );
#else
UNUSED(gain); UNUSED(gain);
#endif
} }
static void btstack_audio_esp32_source_start_stream(void){ static void btstack_audio_esp32_source_start_stream(void){