| /* |
| * Copyright 2018 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. |
| */ |
| |
| #pragma once |
| |
| #include "BluetoothAudioSession.h" |
| |
| namespace aidl { |
| namespace android { |
| namespace hardware { |
| namespace bluetooth { |
| namespace audio { |
| |
| class BluetoothAudioSessionControl { |
| public: |
| /*** |
| * The control API helps to check if session is ready or not |
| * @return: true if the Bluetooth stack has started th specified session |
| ***/ |
| static bool IsSessionReady(const SessionType& session_type) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->IsSessionReady(); |
| } |
| |
| return false; |
| } |
| |
| /*** |
| * The control API helps the bluetooth_audio module to register |
| * PortStatusCallbacks |
| * @return: cookie - the assigned number to this bluetooth_audio output |
| ***/ |
| static uint16_t RegisterControlResultCback( |
| const SessionType& session_type, const PortStatusCallbacks& cbacks) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->RegisterStatusCback(cbacks); |
| } |
| return kObserversCookieUndefined; |
| } |
| |
| /*** |
| * The control API helps the bluetooth_audio module to unregister |
| * PortStatusCallbacks |
| * @param: cookie - indicates which bluetooth_audio output is |
| ***/ |
| static void UnregisterControlResultCback(const SessionType& session_type, |
| uint16_t cookie) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| session_ptr->UnregisterStatusCback(cookie); |
| } |
| } |
| |
| /*** |
| * The control API for the bluetooth_audio module to get current |
| * AudioConfiguration |
| ***/ |
| static const AudioConfiguration GetAudioConfig( |
| const SessionType& session_type) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->GetAudioConfig(); |
| } |
| switch (session_type) { |
| case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH: |
| return AudioConfiguration(CodecConfiguration{}); |
| case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH: |
| case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH: |
| return AudioConfiguration(LeAudioConfiguration{}); |
| case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH: |
| return AudioConfiguration(LeAudioBroadcastConfiguration{}); |
| default: |
| return AudioConfiguration(PcmConfiguration{}); |
| } |
| } |
| |
| /*** |
| * Those control APIs for the bluetooth_audio module to start / suspend / |
| stop |
| * stream, to check position, and to update metadata. |
| ***/ |
| static bool StartStream(const SessionType& session_type) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->StartStream(); |
| } |
| return false; |
| } |
| |
| static bool SuspendStream(const SessionType& session_type) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->SuspendStream(); |
| } |
| return false; |
| } |
| |
| static void StopStream(const SessionType& session_type) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| session_ptr->StopStream(); |
| } |
| } |
| |
| static bool GetPresentationPosition( |
| const SessionType& session_type, |
| PresentationPosition& presentation_position) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->GetPresentationPosition(presentation_position); |
| } |
| return false; |
| } |
| |
| static void UpdateSourceMetadata( |
| const SessionType& session_type, |
| const struct source_metadata& source_metadata) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| session_ptr->UpdateSourceMetadata(source_metadata); |
| } |
| } |
| |
| static void UpdateSinkMetadata(const SessionType& session_type, |
| const struct sink_metadata& sink_metadata) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| session_ptr->UpdateSinkMetadata(sink_metadata); |
| } |
| } |
| |
| /*** |
| * The control API writes stream to FMQ |
| ***/ |
| static size_t OutWritePcmData(const SessionType& session_type, |
| const void* buffer, size_t bytes) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->OutWritePcmData(buffer, bytes); |
| } |
| return 0; |
| } |
| |
| /*** |
| * The control API reads stream from FMQ |
| ***/ |
| static size_t InReadPcmData(const SessionType& session_type, void* buffer, |
| size_t bytes) { |
| std::shared_ptr<BluetoothAudioSession> session_ptr = |
| BluetoothAudioSessionInstance::GetSessionInstance(session_type); |
| if (session_ptr != nullptr) { |
| return session_ptr->InReadPcmData(buffer, bytes); |
| } |
| return 0; |
| } |
| }; |
| |
| } // namespace audio |
| } // namespace bluetooth |
| } // namespace hardware |
| } // namespace android |
| } // namespace aidl |