commit 49bcb92670b94a7be8668c0996484e37586ed99e
author Mikhail Naganov <mnaganov@google.com> Mon Oct 30 15:10:51 2023 -0700
committer Mikhail Naganov <mnaganov@google.com> Fri Nov 03 13:57:36 2023 -0700
tree 9d1f44ce7611c920af5a825d6ba7aed08cb22f33
parent 55045b5fcef4c22c2beadbfb98a1d258e0a4b880

audio: Implement getters for hardware mixer controls

The VTS test for volume accessors first determines whether
the accessor is supported by calling the getter. The getter
must return `UNSUPPORTED_OPERATION` if the control is not
supported. For this reason, wire the getter to the hardware
mixer implementation.

Bug: 302132812
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Ia50def0d076b6d3c46db55123186eab34bbbb954

audio/aidl/default/primary/StreamPrimary.cpp

diff --git a/audio/aidl/default/primary/StreamPrimary.cpp b/audio/aidl/default/primary/StreamPrimary.cpp
index 1b1ea68..7e3bdd4 100644
--- a/audio/aidl/default/primary/StreamPrimary.cpp
+++ b/audio/aidl/default/primary/StreamPrimary.cpp
@@ -127,6 +127,11 @@
     if (isStubStream()) {
         return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
     }
+    float gain;
+    RETURN_STATUS_IF_ERROR(primary::PrimaryMixer::getInstance().getMicGain(&gain));
+    _aidl_return->resize(0);
+    _aidl_return->resize(mChannelCount, gain);
+    RETURN_STATUS_IF_ERROR(setHwGainImpl(*_aidl_return));
     return getHwGainImpl(_aidl_return);
 }
 
@@ -194,6 +199,9 @@
     if (isStubStream()) {
         return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
     }
+    RETURN_STATUS_IF_ERROR(primary::PrimaryMixer::getInstance().getVolumes(_aidl_return));
+    _aidl_return->resize(mChannelCount);
+    RETURN_STATUS_IF_ERROR(setHwVolumeImpl(*_aidl_return));
     return getHwVolumeImpl(_aidl_return);
 }