140 lines
4.7 KiB
C++
140 lines
4.7 KiB
C++
/*
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* Copyright 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "hal_version_manager.h"
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#include <android/binder_manager.h>
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#include <android/hidl/manager/1.2/IServiceManager.h>
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#include <base/logging.h>
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#include <hidl/ServiceManagement.h>
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#include <memory>
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#include "aidl/audio_aidl_interfaces.h"
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namespace bluetooth {
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namespace audio {
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using ::aidl::android::hardware::bluetooth::audio::
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IBluetoothAudioProviderFactory;
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static const std::string kDefaultAudioProviderFactoryInterface =
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std::string() + IBluetoothAudioProviderFactory::descriptor + "/default";
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std::unique_ptr<HalVersionManager> HalVersionManager::instance_ptr =
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std::make_unique<HalVersionManager>();
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BluetoothAudioHalVersion HalVersionManager::GetHalVersion() {
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std::lock_guard<std::mutex> guard(instance_ptr->mutex_);
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return instance_ptr->hal_version_;
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}
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BluetoothAudioHalTransport HalVersionManager::GetHalTransport() {
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switch (GetHalVersion()) {
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case BluetoothAudioHalVersion::VERSION_AIDL_V1:
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return BluetoothAudioHalTransport::AIDL;
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case BluetoothAudioHalVersion::VERSION_2_0:
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case BluetoothAudioHalVersion::VERSION_2_1:
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return BluetoothAudioHalTransport::HIDL;
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default:
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return BluetoothAudioHalTransport::UNKNOWN;
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}
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}
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android::sp<IBluetoothAudioProvidersFactory_2_1>
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HalVersionManager::GetProvidersFactory_2_1() {
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std::lock_guard<std::mutex> guard(instance_ptr->mutex_);
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if (instance_ptr->hal_version_ != BluetoothAudioHalVersion::VERSION_2_1) {
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return nullptr;
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}
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android::sp<IBluetoothAudioProvidersFactory_2_1> providers_factory =
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IBluetoothAudioProvidersFactory_2_1::getService();
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CHECK(providers_factory)
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<< "V2_1::IBluetoothAudioProvidersFactory::getService() failed";
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LOG(INFO) << "V2_1::IBluetoothAudioProvidersFactory::getService() returned "
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<< providers_factory.get()
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<< (providers_factory->isRemote() ? " (remote)" : " (local)");
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return providers_factory;
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}
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android::sp<IBluetoothAudioProvidersFactory_2_0>
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HalVersionManager::GetProvidersFactory_2_0() {
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std::unique_lock<std::mutex> guard(instance_ptr->mutex_);
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if (instance_ptr->hal_version_ == BluetoothAudioHalVersion::VERSION_2_1) {
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guard.unlock();
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return instance_ptr->GetProvidersFactory_2_1();
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}
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android::sp<IBluetoothAudioProvidersFactory_2_0> providers_factory =
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IBluetoothAudioProvidersFactory_2_0::getService();
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CHECK(providers_factory)
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<< "V2_0::IBluetoothAudioProvidersFactory::getService() failed";
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LOG(INFO) << "V2_0::IBluetoothAudioProvidersFactory::getService() returned "
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<< providers_factory.get()
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<< (providers_factory->isRemote() ? " (remote)" : " (local)");
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guard.unlock();
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return providers_factory;
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}
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HalVersionManager::HalVersionManager() {
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if (AServiceManager_checkService(
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kDefaultAudioProviderFactoryInterface.c_str()) != nullptr) {
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hal_version_ = BluetoothAudioHalVersion::VERSION_AIDL_V1;
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return;
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}
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auto service_manager = android::hardware::defaultServiceManager1_2();
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CHECK(service_manager != nullptr);
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size_t instance_count = 0;
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auto listManifestByInterface_cb =
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[&instance_count](
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const hidl_vec<android::hardware::hidl_string>& instanceNames) {
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instance_count = instanceNames.size();
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};
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auto hidl_retval = service_manager->listManifestByInterface(
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kFullyQualifiedInterfaceName_2_1, listManifestByInterface_cb);
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if (!hidl_retval.isOk()) {
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LOG(FATAL) << __func__ << ": IServiceManager::listByInterface failure: "
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<< hidl_retval.description();
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return;
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}
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if (instance_count > 0) {
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hal_version_ = BluetoothAudioHalVersion::VERSION_2_1;
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return;
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}
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hidl_retval = service_manager->listManifestByInterface(
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kFullyQualifiedInterfaceName_2_0, listManifestByInterface_cb);
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if (!hidl_retval.isOk()) {
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LOG(FATAL) << __func__ << ": IServiceManager::listByInterface failure: "
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<< hidl_retval.description();
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return;
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}
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if (instance_count > 0) {
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hal_version_ = BluetoothAudioHalVersion::VERSION_2_0;
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return;
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}
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hal_version_ = BluetoothAudioHalVersion::VERSION_UNAVAILABLE;
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LOG(ERROR) << __func__ << " No supported HAL version";
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}
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} // namespace audio
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} // namespace bluetooth
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