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Commit 7d7ca8bc authored by Zhou Song's avatar Zhou Song
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hal: configure slimbus Rx channel for APTX AD at 96KHz 

Configure slimbus Rx for aptX Adaptive at 96KHz to reduce
the time to transfer the packets across the slimbus.

Change-Id: Iea3beafb5d063ac0bcbb0c76727df2eaed2606a0
parent 198adc00

hal/audio_extn/a2dp.c

+7 −3
Original line number Diff line number Diff line
@@ -1128,11 +1128,15 @@ static bool a2dp_set_backend_cfg(uint8_t direction) 
    } else {

        sampling_rate = a2dp.enc_sampling_rate;

    }

    //For LDAC encoder and AAC decoder open slimbus port at

    //96Khz for 48Khz input and 88.2Khz for 44.1Khz input.

    /*

     * For LDAC encoder and AAC decoder open slimbus port at

     * 96Khz for 48Khz input and 88.2Khz for 44.1Khz input.

     * For APTX AD encoder, open slimbus port at 96Khz for 48Khz input.

     */

    if (((a2dp.bt_encoder_format == CODEC_TYPE_LDAC) ||

         (a2dp.bt_decoder_format == CODEC_TYPE_SBC) ||

         (a2dp.bt_decoder_format == AUDIO_FORMAT_AAC)) &&

         (a2dp.bt_decoder_format == AUDIO_FORMAT_AAC) ||

         (a2dp.bt_encoder_format == CODEC_TYPE_APTX_AD)) &&

        (sampling_rate == 48000 || sampling_rate == 44100 )) {

        sampling_rate = sampling_rate *2;

    }