commit 6645b1d6869ab7002d3d2d7b68efd9d872fe2396
author Susan Wang <yingshuw@codeaurora.org> Mon Dec 07 18:28:08 2020 -0500
committer Gerrit - the friendly Code Review server <code-review@localhost> Thu Jan 07 07:59:19 2021 -0800
tree f731f774f4b73c63b26f41487afc3277419044f1
parent 59487d0a0d1d37e6dd15cb26fd3ae12f29cc0d16

hal: enable routing based on bus addresses

Choose the snd_device based on streams.
This ensures that usecases such as mmap
play out of their intended bus device instead
of always defaulting to the media bus.

Change-Id: Id96742e0a65d3e4c337bcb72baf5a0fd2c8eb469

hal/audio_extn/auto_hal.c

diff --git a/hal/audio_extn/auto_hal.c b/hal/audio_extn/auto_hal.c
index ca3cd6b..9276c9c 100755
--- a/hal/audio_extn/auto_hal.c
+++ b/hal/audio_extn/auto_hal.c
@@ -841,6 +841,8 @@
             snd_device = SND_DEVICE_OUT_VOICE_SPEAKER;
             break;
         case USECASE_AUDIO_PLAYBACK_MEDIA:
+            snd_device = SND_DEVICE_OUT_BUS_MEDIA;
+            break;
         case USECASE_AUDIO_PLAYBACK_OFFLOAD:
         case USECASE_AUDIO_PLAYBACK_OFFLOAD2:
         case USECASE_AUDIO_PLAYBACK_OFFLOAD3:
@@ -854,6 +856,33 @@
         case USECASE_AUDIO_PLAYBACK_MMAP:
         case USECASE_AUDIO_PLAYBACK_VOIP:
             snd_device = SND_DEVICE_OUT_BUS_MEDIA;
+            /* Override the snd_device based on the bus address if available */
+            if (usecase->stream.out->car_audio_stream) {
+                switch (usecase->stream.out->car_audio_stream) {
+                    case CAR_AUDIO_STREAM_MEDIA:
+                        snd_device = SND_DEVICE_OUT_BUS_MEDIA;
+                        break;
+                    case CAR_AUDIO_STREAM_SYS_NOTIFICATION:
+                        snd_device = SND_DEVICE_OUT_BUS_SYS;
+                        break;
+                    case CAR_AUDIO_STREAM_NAV_GUIDANCE:
+                        snd_device = SND_DEVICE_OUT_BUS_NAV;
+                        break;
+                    case CAR_AUDIO_STREAM_PHONE:
+                        snd_device = SND_DEVICE_OUT_BUS_PHN;
+                        break;
+                    case CAR_AUDIO_STREAM_FRONT_PASSENGER:
+                        snd_device = SND_DEVICE_OUT_BUS_PAX;
+                        break;
+                    case CAR_AUDIO_STREAM_REAR_SEAT:
+                        snd_device = SND_DEVICE_OUT_BUS_RSE;
+                        break;
+                    default:
+                        ALOGE("%s: Car audio stream %x not supported", __func__,
+                        usecase->stream.out->car_audio_stream);
+                        return -EINVAL;
+                }
+            }
             break;
         case USECASE_AUDIO_PLAYBACK_SYS_NOTIFICATION:
             snd_device = SND_DEVICE_OUT_BUS_SYS;