static int mtk_voice_bt1_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtimeStream = substream->runtime;
pr_debug("mtk_alsa_prepare rate = %d channels = %d period_size = %lu\n",
runtimeStream->rate, runtimeStream->channels, runtimeStream->period_size);
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
pr_err("%s with SNDRV_PCM_STREAM_CAPTURE\n", __func__);
return 0;
}
AudDrv_ANA_Clk_On();
AudDrv_Clk_On();
/* here start digital part */
SetConnection(Soc_Aud_InterCon_Connection, Soc_Aud_InterConnectionInput_I02,
Soc_Aud_InterConnectionOutput_O17);
SetConnection(Soc_Aud_InterCon_Connection, Soc_Aud_InterConnectionInput_I02,
Soc_Aud_InterConnectionOutput_O18);
SetConnection(Soc_Aud_InterCon_Connection, Soc_Aud_InterConnectionInput_I14,
Soc_Aud_InterConnectionOutput_O02);
SetConnection(Soc_Aud_InterCon_Connection, Soc_Aud_InterConnectionInput_I21,
Soc_Aud_InterConnectionOutput_O08);
if (GetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT) == false) {
/* set merge interface */
SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, true);
} else
SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, true);
/* now use samplerate 8000 */
SetModemSpeechDAIBTAttribute(runtimeStream->rate);
SetDaiBtEnable(true);
voice_bt1Pcm.mPcmModeWidebandSel =
(runtimeStream->rate ==
8000) ? Soc_Aud_PCM_MODE_PCM_MODE_8K : Soc_Aud_PCM_MODE_PCM_MODE_16K;
voice_bt1Pcm.mAsyncFifoSel = Soc_Aud_BYPASS_SRC_SLAVE_USE_ASYNC_FIFO;
SetModemPcmConfig(MODEM_1, voice_bt1Pcm);
SetModemPcmEnable(MODEM_1, true);
EnableAfe(true);
voice_bt_Status = true;
return 0;
}
status_t SpeechPhoneCallController::OpenModemSpeechDigitalPart(const modem_index_t modem_index, const audio_devices_t output_device)
{
const bool bt_device_on = android_audio_legacy::AudioSystem::isBluetoothScoDevice((android_audio_legacy::AudioSystem::audio_devices)output_device);
int sample_rate;
if (bt_device_on == true)
{
if (mBTMode == 0) //NB BTSCO
{
sample_rate = 8000;
}
else
{
sample_rate = 16000;
}
}
else
{
sample_rate = 16000;
}
if (bt_device_on) // DAIBT
{
SetModemSpeechInterConnection(AudioDigitalType::DAI_BT, modem_index, AudioDigitalType::Connection);
SetModemSpeechDAIBTAttribute(sample_rate);
mAudioDigitalInstance->SetDAIBTEnable(true);
#ifdef DAIBT_NO_INTERCONNECTION_TO_MODEM_PCM // DAIBT <-> HW_GAIN2 <-> MODEM_PCM
AudioMEMIFAttribute::SAMPLINGRATE mem_sample_rate =
(sample_rate == 8000) ? AudioMEMIFAttribute::AFE_8000HZ : AudioMEMIFAttribute::AFE_16000HZ;
// SET HW_GAIN2
mAudioDigitalInstance->SetHwDigitalGainMode(AudioDigitalType::HW_DIGITAL_GAIN2, mem_sample_rate, 0xC8);
mAudioDigitalInstance->SetHwDigitalGain(0x80000, AudioDigitalType::HW_DIGITAL_GAIN2);
mAudioDigitalInstance->SetHwDigitalCurrentGain(0x80000, AudioDigitalType::HW_DIGITAL_GAIN2);
mAudioDigitalInstance->SetHwDigitalGainEnable(AudioDigitalType::HW_DIGITAL_GAIN2, true);
// USE HW_GAIN2 MUST TURN ON "MASTER/SLAVE" I2S IN/OUT
AudioDigtalI2S master_2nd_i2s_out_attribute;
memset((void *)&master_2nd_i2s_out_attribute, 0, sizeof(master_2nd_i2s_out_attribute));
master_2nd_i2s_out_attribute.mI2S_SAMPLERATE = sample_rate;
master_2nd_i2s_out_attribute.mINV_LRCK = AudioDigtalI2S::NO_INVERSE;
master_2nd_i2s_out_attribute.mI2S_FMT = AudioDigtalI2S::I2S;
master_2nd_i2s_out_attribute.mI2S_WLEN = AudioDigtalI2S::WLEN_16BITS;
mAudioDigitalInstance->Set2ndI2SOut(&master_2nd_i2s_out_attribute);
mAudioDigitalInstance->Set2ndI2SEnable(true);
#endif
}
else // ADC/DAC I2S
{
SetModemSpeechInterConnection(AudioDigitalType::I2S_IN_ADC, modem_index, AudioDigitalType::Connection);
SetModemSpeechInterConnection(AudioDigitalType::I2S_OUT_DAC, modem_index, AudioDigitalType::Connection);
SetModemSpeechADCI2sInAttribute(sample_rate);
SetModemSpeechDACI2sOutAttribute(sample_rate);
mAudioDigitalInstance->SetI2SAdcEnable(true);
mAudioDigitalInstance->SetI2SDacEnable(true);
}
return NO_ERROR;
}
