1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <mutex> 20 #include <vector> 21 22 #include <aidl/android/hardware/audio/core/IBluetooth.h> 23 #include <aidl/android/hardware/audio/core/IBluetoothA2dp.h> 24 #include <aidl/android/hardware/audio/core/IBluetoothLe.h> 25 26 #include "core-impl/DevicePortProxy.h" 27 #include "core-impl/Module.h" 28 #include "core-impl/Stream.h" 29 30 namespace aidl::android::hardware::audio::core { 31 32 class StreamBluetooth : public StreamCommonImpl { 33 public: 34 StreamBluetooth(StreamContext* context, const Metadata& metadata, 35 Module::BtProfileHandles&& btHandles); 36 // Methods of 'DriverInterface'. 37 ::android::status_t init() override; 38 ::android::status_t drain(StreamDescriptor::DrainMode) override; 39 ::android::status_t flush() override; 40 ::android::status_t pause() override; 41 ::android::status_t standby() override; 42 ::android::status_t start() override; 43 ::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount, 44 int32_t* latencyMs) override; 45 void shutdown() override; 46 47 // Overridden methods of 'StreamCommonImpl', called on a Binder thread. 48 ndk::ScopedAStatus updateMetadataCommon(const Metadata& metadata) override; 49 ndk::ScopedAStatus prepareToClose() override; 50 const ConnectedDevices& getConnectedDevices() const override; 51 ndk::ScopedAStatus setConnectedDevices(const ConnectedDevices& devices) override; 52 ndk::ScopedAStatus bluetoothParametersUpdated() override; 53 54 private: 55 // Audio Pcm Config 56 const uint32_t mSampleRate; 57 const ::aidl::android::media::audio::common::AudioChannelLayout mChannelLayout; 58 const ::aidl::android::media::audio::common::AudioFormatDescription mFormat; 59 const size_t mFrameSizeBytes; 60 const bool mIsInput; 61 const std::weak_ptr<IBluetoothA2dp> mBluetoothA2dp; 62 const std::weak_ptr<IBluetoothLe> mBluetoothLe; 63 size_t mPreferredDataIntervalUs; 64 size_t mPreferredFrameCount; 65 66 mutable std::mutex mLock; 67 bool mIsInitialized GUARDED_BY(mLock); 68 bool mIsReadyToClose GUARDED_BY(mLock); 69 std::vector<std::shared_ptr<::android::bluetooth::audio::aidl::BluetoothAudioPortAidl>> 70 mBtDeviceProxies GUARDED_BY(mLock); 71 72 ::android::status_t initialize() REQUIRES(mLock); 73 bool checkConfigParams(::aidl::android::hardware::bluetooth::audio::PcmConfiguration& config); 74 }; 75 76 class StreamInBluetooth final : public StreamIn, public StreamBluetooth { 77 public: 78 friend class ndk::SharedRefBase; 79 StreamInBluetooth( 80 StreamContext&& context, 81 const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata, 82 const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones, 83 Module::BtProfileHandles&& btHandles); 84 85 private: onClose(StreamDescriptor::State)86 void onClose(StreamDescriptor::State) override { defaultOnClose(); } 87 ndk::ScopedAStatus getActiveMicrophones( 88 std::vector<::aidl::android::media::audio::common::MicrophoneDynamicInfo>* _aidl_return) 89 override; 90 }; 91 92 class StreamOutBluetooth final : public StreamOut, public StreamBluetooth { 93 public: 94 friend class ndk::SharedRefBase; 95 StreamOutBluetooth( 96 StreamContext&& context, 97 const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata, 98 const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>& 99 offloadInfo, 100 Module::BtProfileHandles&& btHandles); 101 102 private: onClose(StreamDescriptor::State)103 void onClose(StreamDescriptor::State) override { defaultOnClose(); } 104 }; 105 106 } // namespace aidl::android::hardware::audio::core 107