1 /* 2 * Copyright 2018 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 #define LOG_TAG "BTAudioProviderA2dpOffload" 18 19 #include <android-base/logging.h> 20 #include <fmq/MessageQueue.h> 21 #include <hidl/MQDescriptor.h> 22 23 #include "A2dpOffloadAudioProvider.h" 24 #include "BluetoothAudioSessionReport.h" 25 #include "BluetoothAudioSupportedCodecsDB.h" 26 27 namespace android { 28 namespace hardware { 29 namespace bluetooth { 30 namespace audio { 31 namespace V2_0 { 32 namespace implementation { 33 34 using ::android::bluetooth::audio::BluetoothAudioSessionReport; 35 using ::android::hardware::kSynchronizedReadWrite; 36 using ::android::hardware::MessageQueue; 37 using ::android::hardware::Void; 38 39 using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>; 40 41 A2dpOffloadAudioProvider::A2dpOffloadAudioProvider() 42 : BluetoothAudioProvider() { 43 session_type_ = SessionType::A2DP_HARDWARE_OFFLOAD_DATAPATH; 44 } 45 46 bool A2dpOffloadAudioProvider::isValid(const SessionType& sessionType) { 47 return (sessionType == session_type_); 48 } 49 50 Return<void> A2dpOffloadAudioProvider::startSession( 51 const sp<IBluetoothAudioPort>& hostIf, 52 const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) { 53 /** 54 * Initialize the audio platform if audioConfiguration is supported. 55 * Save the the IBluetoothAudioPort interface, so that it can be used 56 * later to send stream control commands to the HAL client, based on 57 * interaction with Audio framework. 58 */ 59 if (audioConfig.getDiscriminator() != 60 AudioConfiguration::hidl_discriminator::codecConfig) { 61 LOG(WARNING) << __func__ 62 << " - Invalid Audio Configuration=" << toString(audioConfig); 63 _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION, 64 DataMQ::Descriptor()); 65 return Void(); 66 } else if (!android::bluetooth::audio::IsOffloadCodecConfigurationValid( 67 session_type_, audioConfig.codecConfig())) { 68 _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION, 69 DataMQ::Descriptor()); 70 return Void(); 71 } 72 73 return BluetoothAudioProvider::startSession(hostIf, audioConfig, _hidl_cb); 74 } 75 76 Return<void> A2dpOffloadAudioProvider::onSessionReady( 77 startSession_cb _hidl_cb) { 78 BluetoothAudioSessionReport::OnSessionStarted(session_type_, stack_iface_, 79 nullptr, audio_config_); 80 _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor()); 81 return Void(); 82 } 83 84 } // namespace implementation 85 } // namespace V2_0 86 } // namespace audio 87 } // namespace bluetooth 88 } // namespace hardware 89 } // namespace android 90
