sascha/esphome
1
0
Fork 0
mirror of https://github.com/esphome/esphome.git synced 2025-09-13 08:42:18 +01:00
Code Issues Releases Wiki Activity

Add more configuration for microphones - i2s/pdm/adc (#4775)

Browse Source
This commit is contained in:
Jesse Hills
2023-05-10 16:37:21 +12:00
committed by GitHub
parent b19c7d462b
commit 39a650ee54
6 changed files with 245 additions and 129 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
esphome/components/i2s_audio/microphone/i2s_audio_microphone.cpp
View File

@@ -17,15 +17,36 @@ static const char *const TAG = "i2s_audio.microphone";
void I2SAudioMicrophone::setup() {
ESP_LOGCONFIG(TAG, "Setting up I2S Audio Microphone...");
this->buffer_.resize(BUFFER_SIZE);
#if SOC_I2S_SUPPORTS_ADC
if (this->adc_) {
if (this->parent_->get_port() != I2S_NUM_0) {
ESP_LOGE(TAG, "Internal ADC only works on I2S0!");
this->mark_failed();
return;
}
} else
#endif
if (this->pdm_) {
if (this->parent_->get_port() != I2S_NUM_0) {
ESP_LOGE(TAG, "PDM only works on I2S0!");
this->mark_failed();
return;
}
}
}
void I2SAudioMicrophone::start() { this->state_ = microphone::STATE_STARTING; }
void I2SAudioMicrophone::start() {
if (this->is_failed())
return;
this->state_ = microphone::STATE_STARTING;
}
void I2SAudioMicrophone::start_() {
if (!this->parent_->try_lock()) {
return; // Waiting for another i2s to return lock
}
i2s_driver_config_t config = {
.mode = (i2s_mode_t) (I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_PDM),
.mode = (i2s_mode_t) (I2S_MODE_MASTER | I2S_MODE_RX),
.sample_rate = 16000,
.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT,
.channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT,
@@ -40,18 +61,33 @@ void I2SAudioMicrophone::start_() {
.bits_per_chan = I2S_BITS_PER_CHAN_DEFAULT,
};
i2s_driver_install(this->parent_->get_port(), &config, 0, nullptr);
#if SOC_I2S_SUPPORTS_ADC
if (this->adc_) {
config.mode = (i2s_mode_t) (config.mode | I2S_MODE_ADC_BUILT_IN);
i2s_driver_install(this->parent_->get_port(), &config, 0, nullptr);
i2s_pin_config_t pin_config = this->parent_->get_pin_config();
pin_config.data_in_num = this->din_pin_;
i2s_set_adc_mode(ADC_UNIT_1, this->adc_channel_);
i2s_adc_enable(this->parent_->get_port());
} else {
#endif
if (this->pdm_)
config.mode = (i2s_mode_t) (config.mode | I2S_MODE_PDM);
i2s_set_pin(this->parent_->get_port(), &pin_config);
i2s_driver_install(this->parent_->get_port(), &config, 0, nullptr);
i2s_pin_config_t pin_config = this->parent_->get_pin_config();
pin_config.data_in_num = this->din_pin_;
i2s_set_pin(this->parent_->get_port(), &pin_config);
#if SOC_I2S_SUPPORTS_ADC
}
#endif
this->state_ = microphone::STATE_RUNNING;
this->high_freq_.start();
}
void I2SAudioMicrophone::stop() {
if (this->state_ == microphone::STATE_STOPPED)
if (this->state_ == microphone::STATE_STOPPED || this->is_failed())
return;
this->state_ = microphone::STATE_STOPPING;
}