System-side vendor extension for handling vendor parameters
A mechanism for handling vendor parameters of the Core Audio HAL
is introduced. It is realized by means of a system side interface
'IHalAdapterVendorExtension' which can be implemented by the
vendor in order to provide bidirectional translation between raw
key-value pairs and structured VendorParameter parcelables.
If an instance of 'IHalAdapterVendorExtension' is provided
(for example, via a system ext partition), the audio framework
will use it in order to process parameters that do not map
to methods and fields of AOSP Core Audio HAL interfaces,
and call 'IModule|IStreamCommon.get|setVendorParameters'.
Bug: 274433842
Bug: 278976019
Test: atest CoreAudioHalAidlTest
Change-Id: I8e77238d85cfa91bd7b53e20ad42bd195160fb04
diff --git a/media/libaudiohal/impl/DeviceHalAidl.cpp b/media/libaudiohal/impl/DeviceHalAidl.cpp
index 58b4406..e6e7c6a 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalAidl.cpp
@@ -62,6 +62,7 @@
using aidl::android::media::audio::common::Int;
using aidl::android::media::audio::common::MicrophoneDynamicInfo;
using aidl::android::media::audio::common::MicrophoneInfo;
+using aidl::android::media::audio::IHalAdapterVendorExtension;
using aidl::android::hardware::audio::common::getFrameSizeInBytes;
using aidl::android::hardware::audio::common::isBitPositionFlagSet;
using aidl::android::hardware::audio::common::isDefaultAudioFormat;
@@ -76,6 +77,7 @@
using aidl::android::hardware::audio::core::ITelephony;
using aidl::android::hardware::audio::core::ModuleDebug;
using aidl::android::hardware::audio::core::StreamDescriptor;
+using aidl::android::hardware::audio::core::VendorParameter;
namespace android {
@@ -125,9 +127,10 @@
} // namespace
-DeviceHalAidl::DeviceHalAidl(const std::string& instance, const std::shared_ptr<IModule>& module)
+DeviceHalAidl::DeviceHalAidl(const std::string& instance, const std::shared_ptr<IModule>& module,
+ const std::shared_ptr<IHalAdapterVendorExtension>& vext)
: ConversionHelperAidl("DeviceHalAidl"),
- mInstance(instance), mModule(module),
+ mInstance(instance), mModule(module), mVendorExt(vext),
mTelephony(retrieveSubInterface<ITelephony>(module, &IModule::getTelephony)),
mBluetooth(retrieveSubInterface<IBluetooth>(module, &IModule::getBluetooth)),
mBluetoothA2dp(retrieveSubInterface<IBluetoothA2dp>(module, &IModule::getBluetoothA2dp)),
@@ -289,19 +292,21 @@
if (status_t status = filterAndUpdateScreenParameters(parameters); status != OK) {
ALOGW("%s: filtering or updating screen parameters failed: %d", __func__, status);
}
-
- ALOGW_IF(parameters.size() != 0, "%s: unknown parameters, ignored: \"%s\"",
- __func__, parameters.toString().c_str());
- return OK;
+ return parseAndSetVendorParameters(mVendorExt, mModule, parameters);
}
-status_t DeviceHalAidl::getParameters(const String8& keys __unused, String8 *values) {
+status_t DeviceHalAidl::getParameters(const String8& keys, String8 *values) {
TIME_CHECK();
- // FIXME(b/278976019): Support keyReconfigA2dpSupported via vendor plugin
- values->clear();
if (!mModule) return NO_INIT;
- ALOGE("%s not implemented yet", __func__);
- return OK;
+ if (values == nullptr) {
+ return BAD_VALUE;
+ }
+ AudioParameter parameterKeys(keys), result;
+ if (status_t status = filterAndRetrieveBtA2dpParameters(parameterKeys, &result); status != OK) {
+ ALOGW("%s: filtering or retrieving BT A2DP parameters failed: %d", __func__, status);
+ }
+ *values = result.toString();
+ return parseAndGetVendorParameters(mVendorExt, mModule, parameterKeys, values);
}
namespace {
@@ -571,7 +576,7 @@
return NO_INIT;
}
*outStream = sp<StreamOutHalAidl>::make(*config, std::move(context), aidlPatch.latenciesMs[0],
- std::move(ret.stream), this /*callbackBroker*/);
+ std::move(ret.stream), mVendorExt, this /*callbackBroker*/);
mStreams.insert(std::pair(*outStream, aidlPatch.id));
void* cbCookie = (*outStream).get();
{
@@ -632,7 +637,7 @@
return NO_INIT;
}
*inStream = sp<StreamInHalAidl>::make(*config, std::move(context), aidlPatch.latenciesMs[0],
- std::move(ret.stream), this /*micInfoProvider*/);
+ std::move(ret.stream), mVendorExt, this /*micInfoProvider*/);
mStreams.insert(std::pair(*inStream, aidlPatch.id));
cleanups.disarmAll();
return OK;
@@ -1093,9 +1098,23 @@
return OK;
}
+status_t DeviceHalAidl::filterAndRetrieveBtA2dpParameters(
+ AudioParameter &keys, AudioParameter *result) {
+ TIME_CHECK();
+ if (String8 key = String8(AudioParameter::keyReconfigA2dpSupported); keys.containsKey(key)) {
+ keys.remove(key);
+ bool supports;
+ RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
+ mBluetoothA2dp->supportsOffloadReconfiguration(&supports)));
+ result->addInt(key, supports ? 1 : 0);
+ }
+ return OK;
+}
+
status_t DeviceHalAidl::filterAndUpdateBtA2dpParameters(AudioParameter ¶meters) {
TIME_CHECK();
std::optional<bool> a2dpEnabled;
+ std::optional<std::vector<VendorParameter>> reconfigureOffload;
(void)VALUE_OR_RETURN_STATUS(filterOutAndProcessParameter<String8>(
parameters, String8(AudioParameter::keyBtA2dpSuspended),
[&a2dpEnabled](const String8& trueOrFalse) {
@@ -1110,10 +1129,27 @@
AudioParameter::keyBtA2dpSuspended, trueOrFalse.c_str());
return BAD_VALUE;
}));
- // FIXME(b/278976019): Support keyReconfigA2dp via vendor plugin
+ (void)VALUE_OR_RETURN_STATUS(filterOutAndProcessParameter<String8>(
+ parameters, String8(AudioParameter::keyReconfigA2dp),
+ [&](const String8& value) -> status_t {
+ if (mVendorExt != nullptr) {
+ std::vector<VendorParameter> result;
+ RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
+ mVendorExt->parseBluetoothA2dpReconfigureOffload(
+ std::string(value.c_str()), &result)));
+ reconfigureOffload = std::move(result);
+ } else {
+ reconfigureOffload = std::vector<VendorParameter>();
+ }
+ return OK;
+ }));
if (mBluetoothA2dp != nullptr && a2dpEnabled.has_value()) {
return statusTFromBinderStatus(mBluetoothA2dp->setEnabled(a2dpEnabled.value()));
}
+ if (mBluetoothA2dp != nullptr && reconfigureOffload.has_value()) {
+ return statusTFromBinderStatus(mBluetoothA2dp->reconfigureOffload(
+ reconfigureOffload.value()));
+ }
return OK;
}