commit a35b60795981282854ddbc47a37cd27806c6e48e
author Aniket Kumar Lata <alata@codeaurora.org> Mon Oct 01 16:22:35 2018 -0700
committer Gerrit - the friendly Code Review server <code-review@localhost> Mon Oct 15 10:56:15 2018 -0700
tree 295dcd8786f8685009589890f9b76f2bba185288
parent 82debc53f1539546964d89e81c5105683a7b0fea

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.

CRs-Fixed: 2324088
Change-Id: I77ef702702414126a95aaa2db1d386bda483444e

hal/audio_extn/a2dp.c

diff --git a/hal/audio_extn/a2dp.c b/hal/audio_extn/a2dp.c
index 41ea408..17ba960 100644
--- a/hal/audio_extn/a2dp.c
+++ b/hal/audio_extn/a2dp.c
@@ -844,10 +844,16 @@
     uint32_t sampling_rate_rx = a2dp.enc_sampling_rate;
     struct mixer_ctl *ctl_sample_rate = NULL, *ctrl_in_channels = NULL;
 
-    //For LDAC encoder open slimbus port at 96Khz for 48Khz input
-    //and 88.2Khz for 44.1Khz input.
+    /* For LDAC encoder 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 == ENC_CODEC_TYPE_LDAC) &&
-        (sampling_rate_rx == 48000 || sampling_rate_rx == 44100 )) {
+        (sampling_rate_rx == SAMPLING_RATE_48K ||
+         sampling_rate_rx == SAMPLING_RATE_441K)) {
+        sampling_rate_rx *= 2;
+    } else if (a2dp.bt_encoder_format == ENC_CODEC_TYPE_APTX_AD &&
+               sampling_rate_rx == SAMPLING_RATE_48K) {
         sampling_rate_rx *= 2;
     }