libaudiohal: Implement simple HIDL client
This client requires both HIDL client and server to be of the same
ABI version (e.g. 32-bit).
EffectHalHidl::process and EffectHalHidl::processReverse are stubs.
Some extra warnings are logged due to unimplemented functions
in the legacy HAL.
Bug: 30222631
Change-Id: Id074131dec6d6c4f1031695abcf3ea066e92a5af
Test: Play Music (play / EQ), YouTube, Loopback RTLT, Ok Google on N5X
diff --git a/media/libaudiohal/EffectsFactoryHalHidl.cpp b/media/libaudiohal/EffectsFactoryHalHidl.cpp
new file mode 100644
index 0000000..4f2eef0
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalHidl.cpp
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectsFactoryHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <cutils/native_handle.h>
+#include <media/EffectsFactoryApi.h>
+
+#include "EffectHalHidl.h"
+#include "EffectsFactoryHalHidl.h"
+#include "HidlUtils.h"
+
+using ::android::hardware::audio::common::V2_0::Uuid;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::Return;
+using ::android::hardware::Status;
+
+namespace android {
+
+// static
+sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
+ return new EffectsFactoryHalHidl();
+}
+
+// static
+bool EffectsFactoryHalInterface::isNullUuid(const effect_uuid_t *pEffectUuid) {
+ return EffectIsNullUuid(pEffectUuid);
+}
+
+EffectsFactoryHalHidl::EffectsFactoryHalHidl() {
+ mEffectsFactory = IEffectsFactory::getService("audio_effects_factory");
+}
+
+EffectsFactoryHalHidl::~EffectsFactoryHalHidl() {
+}
+
+status_t EffectsFactoryHalHidl::queryAllDescriptors() {
+ if (mEffectsFactory == 0) return NO_INIT;
+ Result retval = Result::NOT_INITIALIZED;
+ Return<void> ret = mEffectsFactory->getAllDescriptors(
+ [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+ retval = r;
+ if (retval == Result::OK) {
+ mLastDescriptors = result;
+ }
+ });
+ if (ret.getStatus().isOk()) {
+ return retval == Result::OK ? OK : NO_INIT;
+ }
+ mLastDescriptors.resize(0);
+ return ret.getStatus().transactionError();
+}
+
+status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
+ status_t queryResult = queryAllDescriptors();
+ if (queryResult == OK) {
+ *pNumEffects = mLastDescriptors.size();
+ }
+ return queryResult;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+ uint32_t index, effect_descriptor_t *pDescriptor) {
+ // TODO: We need somehow to track the changes on the server side
+ // or figure out how to convert everybody to query all the descriptors at once.
+ // TODO: check for nullptr
+ if (mLastDescriptors.size() == 0) {
+ status_t queryResult = queryAllDescriptors();
+ if (queryResult != OK) return queryResult;
+ }
+ if (index >= mLastDescriptors.size()) return NAME_NOT_FOUND;
+ EffectHalHidl::effectDescriptorToHal(mLastDescriptors[index], pDescriptor);
+ return OK;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+ const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
+ // TODO: check for nullptr
+ if (mEffectsFactory == 0) return NO_INIT;
+ Uuid hidlUuid;
+ HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+ Result retval = Result::NOT_INITIALIZED;
+ Return<void> ret = mEffectsFactory->getDescriptor(hidlUuid,
+ [&](Result r, const EffectDescriptor& result) {
+ retval = r;
+ if (retval == Result::OK) {
+ EffectHalHidl::effectDescriptorToHal(result, pDescriptor);
+ }
+ });
+ if (ret.getStatus().isOk()) {
+ if (retval == Result::OK) return OK;
+ else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+ else return NO_INIT;
+ }
+ return ret.getStatus().transactionError();
+}
+
+status_t EffectsFactoryHalHidl::createEffect(
+ const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
+ sp<EffectHalInterface> *effect) {
+ if (mEffectsFactory == 0) return NO_INIT;
+ Uuid hidlUuid;
+ HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+ Result retval = Result::NOT_INITIALIZED;
+ Return<void> ret = mEffectsFactory->createEffect(
+ hidlUuid, sessionId, ioId,
+ [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
+ retval = r;
+ if (retval == Result::OK) {
+ *effect = new EffectHalHidl(result, effectId);
+ }
+ });
+ if (ret.getStatus().isOk()) {
+ if (retval == Result::OK) return OK;
+ else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+ else return NO_INIT;
+ }
+ return ret.getStatus().transactionError();
+}
+
+status_t EffectsFactoryHalHidl::dumpEffects(int fd) {
+ if (mEffectsFactory == 0) return NO_INIT;
+ native_handle_t* hidlHandle = native_handle_create(1, 0);
+ hidlHandle->data[0] = fd;
+ Return<void> ret = mEffectsFactory->debugDump(hidlHandle);
+ native_handle_delete(hidlHandle);
+ return ret.getStatus().transactionError();
+}
+
+} // namespace android