| /* |
| * Copyright (C) 2022 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. |
| */ |
| |
| #include <algorithm> |
| #include <map> |
| #include <memory> |
| #include <mutex> |
| #include <string> |
| |
| #define LOG_TAG "DevicesFactoryHalAidl" |
| //#define LOG_NDEBUG 0 |
| |
| #include <aidl/android/hardware/audio/core/IModule.h> |
| #include <aidl/android/media/audio/BnHalAdapterVendorExtension.h> |
| #include <android/binder_manager.h> |
| #include <cutils/properties.h> |
| #include <media/AidlConversionNdkCpp.h> |
| #include <media/AidlConversionUtil.h> |
| #include <utils/Log.h> |
| |
| #include "DeviceHalAidl.h" |
| #include "DevicesFactoryHalAidl.h" |
| |
| using aidl::android::aidl_utils::statusTFromBinderStatus; |
| using aidl::android::hardware::audio::core::IConfig; |
| using aidl::android::hardware::audio::core::IModule; |
| using aidl::android::hardware::audio::core::SurroundSoundConfig; |
| using aidl::android::hardware::audio::core::VendorParameter; |
| using aidl::android::media::audio::common::AudioHalEngineConfig; |
| using aidl::android::media::audio::IHalAdapterVendorExtension; |
| using android::detail::AudioHalVersionInfo; |
| |
| namespace android { |
| |
| namespace { |
| |
| ConversionResult<media::SurroundSoundConfig::SurroundFormatFamily> |
| ndk2cpp_SurroundSoundConfigFormatFamily(const SurroundSoundConfig::SurroundFormatFamily& ndk) { |
| media::SurroundSoundConfig::SurroundFormatFamily cpp; |
| cpp.primaryFormat = VALUE_OR_RETURN(ndk2cpp_AudioFormatDescription(ndk.primaryFormat)); |
| cpp.subFormats = VALUE_OR_RETURN(::aidl::android::convertContainer<std::vector< |
| media::audio::common::AudioFormatDescription>>(ndk.subFormats, |
| ndk2cpp_AudioFormatDescription)); |
| return cpp; |
| } |
| |
| ConversionResult<media::SurroundSoundConfig> |
| ndk2cpp_SurroundSoundConfig(const SurroundSoundConfig& ndk) { |
| media::SurroundSoundConfig cpp; |
| cpp.formatFamilies = VALUE_OR_RETURN(::aidl::android::convertContainer<std::vector< |
| media::SurroundSoundConfig::SurroundFormatFamily>>(ndk.formatFamilies, |
| ndk2cpp_SurroundSoundConfigFormatFamily)); |
| return cpp; |
| } |
| |
| class HalAdapterVendorExtensionWrapper : |
| public ::aidl::android::media::audio::BnHalAdapterVendorExtension { |
| private: |
| template<typename F> |
| ndk::ScopedAStatus callWithRetryOnCrash(F method) { |
| ndk::ScopedAStatus status = ndk::ScopedAStatus::ok(); |
| for (auto service = getService(); service != nullptr; service = getService(true)) { |
| status = method(service); |
| if (status.getStatus() != STATUS_DEAD_OBJECT) break; |
| } |
| return status; |
| } |
| |
| ndk::ScopedAStatus parseVendorParameterIds(ParameterScope in_scope, |
| const std::string& in_rawKeys, |
| std::vector<std::string>* _aidl_return) override { |
| return callWithRetryOnCrash([&](auto service) { |
| return service->parseVendorParameterIds(in_scope, in_rawKeys, _aidl_return); |
| }); |
| } |
| |
| ndk::ScopedAStatus parseVendorParameters( |
| ParameterScope in_scope, const std::string& in_rawKeysAndValues, |
| std::vector<VendorParameter>* out_syncParameters, |
| std::vector<VendorParameter>* out_asyncParameters) override { |
| return callWithRetryOnCrash([&](auto service) { |
| return service->parseVendorParameters(in_scope, in_rawKeysAndValues, |
| out_syncParameters, out_asyncParameters); |
| }); |
| } |
| |
| ndk::ScopedAStatus parseBluetoothA2dpReconfigureOffload( |
| const std::string& in_rawValue, std::vector<VendorParameter>* _aidl_return) override { |
| return callWithRetryOnCrash([&](auto service) { |
| return service->parseBluetoothA2dpReconfigureOffload(in_rawValue, _aidl_return); |
| }); |
| } |
| |
| ndk::ScopedAStatus parseBluetoothLeReconfigureOffload(const std::string& in_rawValue, |
| std::vector<VendorParameter>* _aidl_return) override { |
| return callWithRetryOnCrash([&](auto service) { |
| return service->parseBluetoothLeReconfigureOffload(in_rawValue, _aidl_return); |
| }); |
| } |
| |
| ndk::ScopedAStatus processVendorParameters(ParameterScope in_scope, |
| const std::vector<VendorParameter>& in_parameters, |
| std::string* _aidl_return) override { |
| return callWithRetryOnCrash([&](auto service) { |
| return service->processVendorParameters(in_scope, in_parameters, _aidl_return); |
| }); |
| } |
| |
| std::shared_ptr<IHalAdapterVendorExtension> getService(bool reset = false) { |
| std::lock_guard l(mLock); |
| if (reset || !mVendorExt.has_value()) { |
| if (property_get_bool("ro.audio.ihaladaptervendorextension_enabled", false)) { |
| auto serviceName = std::string(IHalAdapterVendorExtension::descriptor) + "/default"; |
| mVendorExt = std::shared_ptr<IHalAdapterVendorExtension>( |
| IHalAdapterVendorExtension::fromBinder(ndk::SpAIBinder( |
| AServiceManager_waitForService(serviceName.c_str())))); |
| } else { |
| mVendorExt = nullptr; |
| } |
| } |
| return mVendorExt.value(); |
| } |
| |
| std::mutex mLock; |
| std::optional<std::shared_ptr<::aidl::android::media::audio::IHalAdapterVendorExtension>> |
| mVendorExt GUARDED_BY(mLock); |
| }; |
| |
| } // namespace |
| |
| DevicesFactoryHalAidl::DevicesFactoryHalAidl(std::shared_ptr<IConfig> config) |
| : mConfig(std::move(config)), |
| mVendorExt(ndk::SharedRefBase::make<HalAdapterVendorExtensionWrapper>()) { |
| } |
| |
| status_t DevicesFactoryHalAidl::getDeviceNames(std::vector<std::string> *names) { |
| if (names == nullptr) { |
| return BAD_VALUE; |
| } |
| AServiceManager_forEachDeclaredInstance(IModule::descriptor, static_cast<void*>(names), |
| [](const char* instance, void* context) { |
| if (strcmp(instance, "default") == 0) instance = "primary"; |
| static_cast<decltype(names)>(context)->push_back(instance); |
| }); |
| std::sort(names->begin(), names->end(), [](const std::string& lhs, |
| const std::string& rhs) { |
| // This order corresponds to the canonical order of modules as specified in |
| // the reference 'audio_policy_configuration_7_0.xml' file. |
| static const std::map<std::string, int> kPriorities{ |
| { "primary", 0 }, { "a2dp", 1 }, { "usb", 2 }, { "r_submix", 3 }, |
| { "bluetooth", 4 }, { "hearing_aid", 5 }, { "msd", 6 }, { "stub", 7 } |
| }; |
| auto lhsIt = kPriorities.find(lhs); |
| auto rhsIt = kPriorities.find(rhs); |
| if (lhsIt != kPriorities.end() && rhsIt != kPriorities.end()) { |
| return lhsIt->second < rhsIt->second; |
| } |
| return lhsIt != kPriorities.end(); |
| }); |
| return OK; |
| } |
| |
| // Opens a device with the specified name. To close the device, it is |
| // necessary to release references to the returned object. |
| status_t DevicesFactoryHalAidl::openDevice(const char *name, sp<DeviceHalInterface> *device) { |
| if (name == nullptr || device == nullptr) { |
| return BAD_VALUE; |
| } |
| std::shared_ptr<IModule> service; |
| if (strcmp(name, "primary") == 0) name = "default"; |
| auto serviceName = std::string(IModule::descriptor) + "/" + name; |
| service = IModule::fromBinder( |
| ndk::SpAIBinder(AServiceManager_waitForService(serviceName.c_str()))); |
| if (service == nullptr) { |
| ALOGE("%s fromBinder %s failed", __func__, serviceName.c_str()); |
| return NO_INIT; |
| } |
| *device = sp<DeviceHalAidl>::make(name, service, mVendorExt); |
| return OK; |
| } |
| |
| status_t DevicesFactoryHalAidl::setCallbackOnce(sp<DevicesFactoryHalCallback> callback) { |
| // Dynamic registration of module instances is not supported. The functionality |
| // in the audio server which is related to this callback can be removed together |
| // with HIDL support. |
| ALOG_ASSERT(callback != nullptr); |
| if (callback != nullptr) { |
| callback->onNewDevicesAvailable(); |
| } |
| return NO_ERROR; |
| } |
| |
| AudioHalVersionInfo DevicesFactoryHalAidl::getHalVersion() const { |
| int32_t versionNumber = 0; |
| if (ndk::ScopedAStatus status = mConfig->getInterfaceVersion(&versionNumber); !status.isOk()) { |
| ALOGE("%s getInterfaceVersion failed: %s", __func__, status.getDescription().c_str()); |
| } |
| // AIDL does not have minor version, fill 0 for all versions |
| return AudioHalVersionInfo(AudioHalVersionInfo::Type::AIDL, versionNumber); |
| } |
| |
| status_t DevicesFactoryHalAidl::getSurroundSoundConfig(media::SurroundSoundConfig *config) { |
| SurroundSoundConfig ndkConfig; |
| RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mConfig->getSurroundSoundConfig(&ndkConfig))); |
| *config = VALUE_OR_RETURN_STATUS(ndk2cpp_SurroundSoundConfig(ndkConfig)); |
| return OK; |
| } |
| |
| status_t DevicesFactoryHalAidl::getEngineConfig( |
| media::audio::common::AudioHalEngineConfig *config) { |
| AudioHalEngineConfig ndkConfig; |
| RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mConfig->getEngineConfig(&ndkConfig))); |
| *config = VALUE_OR_RETURN_STATUS(ndk2cpp_AudioHalEngineConfig(ndkConfig)); |
| return OK; |
| } |
| |
| // Main entry-point to the shared library. |
| extern "C" __attribute__((visibility("default"))) void* createIDevicesFactoryImpl() { |
| auto serviceName = std::string(IConfig::descriptor) + "/default"; |
| auto service = IConfig::fromBinder( |
| ndk::SpAIBinder(AServiceManager_waitForService(serviceName.c_str()))); |
| if (!service) { |
| ALOGE("%s binder service %s not exist", __func__, serviceName.c_str()); |
| return nullptr; |
| } |
| return new DevicesFactoryHalAidl(service); |
| } |
| |
| } // namespace android |