Grzegorz Kolodziejczyk | b5f2d23 | 2019-10-24 12:31:20 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2020 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 "BTAudioProviderStub" |
| 18 | |
| 19 | #include "BluetoothAudioProvider.h" |
| 20 | |
| 21 | #include <android-base/logging.h> |
| 22 | |
| 23 | #include "BluetoothAudioSessionReport.h" |
| 24 | #include "BluetoothAudioSupportedCodecsDB.h" |
| 25 | |
| 26 | namespace android { |
| 27 | namespace hardware { |
| 28 | namespace bluetooth { |
| 29 | namespace audio { |
| 30 | namespace V2_1 { |
| 31 | namespace implementation { |
| 32 | |
| 33 | using ::android::bluetooth::audio::BluetoothAudioSessionReport; |
| 34 | using ::android::hardware::kSynchronizedReadWrite; |
| 35 | using ::android::hardware::MessageQueue; |
| 36 | using ::android::hardware::Void; |
| 37 | |
| 38 | using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>; |
| 39 | |
| 40 | void BluetoothAudioDeathRecipient::serviceDied( |
| 41 | uint64_t cookie __unused, |
| 42 | const wp<::android::hidl::base::V1_0::IBase>& who __unused) { |
| 43 | LOG(ERROR) << "BluetoothAudioDeathRecipient::" << __func__ |
| 44 | << " - BluetoothAudio Service died"; |
| 45 | provider_->endSession(); |
| 46 | } |
| 47 | |
| 48 | BluetoothAudioProvider::BluetoothAudioProvider() |
| 49 | : death_recipient_(new BluetoothAudioDeathRecipient(this)), |
| 50 | session_type_(SessionType::UNKNOWN), |
| 51 | audio_config_({}) {} |
| 52 | |
| 53 | Return<void> BluetoothAudioProvider::startSession( |
| 54 | const sp<IBluetoothAudioPort>& hostIf, |
| 55 | const V2_0::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) { |
| 56 | AudioConfiguration audioConfig_2_1; |
| 57 | |
Grzegorz Kołodziejczyk | d7f04f9 | 2020-11-13 12:33:45 +0000 | [diff] [blame] | 58 | if (audioConfig.getDiscriminator() == |
| 59 | V2_0::AudioConfiguration::hidl_discriminator::pcmConfig) { |
Grzegorz Kołodziejczyk | 0f0c5d1 | 2020-11-25 20:42:43 +0100 | [diff] [blame] | 60 | audioConfig_2_1.pcmConfig({ |
Grzegorz Kołodziejczyk | d7f04f9 | 2020-11-13 12:33:45 +0000 | [diff] [blame] | 61 | .sampleRate = |
| 62 | static_cast<SampleRate>(audioConfig.pcmConfig().sampleRate), |
| 63 | .channelMode = audioConfig.pcmConfig().channelMode, |
| 64 | .bitsPerSample = audioConfig.pcmConfig().bitsPerSample, |
Grzegorz Kołodziejczyk | 0f0c5d1 | 2020-11-25 20:42:43 +0100 | [diff] [blame] | 65 | .dataIntervalUs = 0}); |
Grzegorz Kołodziejczyk | d7f04f9 | 2020-11-13 12:33:45 +0000 | [diff] [blame] | 66 | } else { |
Grzegorz Kołodziejczyk | 0f0c5d1 | 2020-11-25 20:42:43 +0100 | [diff] [blame] | 67 | audioConfig_2_1.codecConfig(audioConfig.codecConfig()); |
Grzegorz Kołodziejczyk | d7f04f9 | 2020-11-13 12:33:45 +0000 | [diff] [blame] | 68 | } |
Grzegorz Kolodziejczyk | b5f2d23 | 2019-10-24 12:31:20 +0200 | [diff] [blame] | 69 | |
| 70 | return startSession_2_1(hostIf, audioConfig_2_1, _hidl_cb); |
| 71 | } |
| 72 | |
| 73 | Return<void> BluetoothAudioProvider::startSession_2_1( |
| 74 | const sp<IBluetoothAudioPort>& hostIf, |
| 75 | const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) { |
| 76 | if (hostIf == nullptr) { |
| 77 | _hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor()); |
| 78 | return Void(); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Initialize the audio platform if audioConfiguration is supported. |
| 83 | * Save the IBluetoothAudioPort interface, so that it can be used |
| 84 | * later to send stream control commands to the HAL client, based on |
| 85 | * interaction with Audio framework. |
| 86 | */ |
| 87 | audio_config_ = audioConfig; |
| 88 | stack_iface_ = hostIf; |
| 89 | stack_iface_->linkToDeath(death_recipient_, 0); |
| 90 | |
| 91 | LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) |
| 92 | << ", AudioConfiguration=[" << toString(audio_config_) << "]"; |
| 93 | |
| 94 | onSessionReady(_hidl_cb); |
| 95 | return Void(); |
| 96 | } |
| 97 | |
| 98 | Return<void> BluetoothAudioProvider::streamStarted( |
| 99 | BluetoothAudioStatus status) { |
| 100 | LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) |
| 101 | << ", status=" << toString(status); |
| 102 | |
| 103 | /** |
| 104 | * Streaming on control path has started, |
| 105 | * HAL server should start the streaming on data path. |
| 106 | */ |
| 107 | if (stack_iface_) { |
| 108 | BluetoothAudioSessionReport::ReportControlStatus(session_type_, true, |
| 109 | status); |
| 110 | } else { |
| 111 | LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_) |
| 112 | << ", status=" << toString(status) << " has NO session"; |
| 113 | } |
| 114 | |
| 115 | return Void(); |
| 116 | } |
| 117 | |
| 118 | Return<void> BluetoothAudioProvider::streamSuspended( |
| 119 | BluetoothAudioStatus status) { |
| 120 | LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) |
| 121 | << ", status=" << toString(status); |
| 122 | |
| 123 | /** |
| 124 | * Streaming on control path has suspend, |
| 125 | * HAL server should suspend the streaming on data path. |
| 126 | */ |
| 127 | if (stack_iface_) { |
| 128 | BluetoothAudioSessionReport::ReportControlStatus(session_type_, false, |
| 129 | status); |
| 130 | } else { |
| 131 | LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_) |
| 132 | << ", status=" << toString(status) << " has NO session"; |
| 133 | } |
| 134 | |
| 135 | return Void(); |
| 136 | } |
| 137 | |
| 138 | Return<void> BluetoothAudioProvider::endSession() { |
| 139 | LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_); |
| 140 | |
| 141 | if (stack_iface_) { |
| 142 | BluetoothAudioSessionReport::OnSessionEnded(session_type_); |
| 143 | stack_iface_->unlinkToDeath(death_recipient_); |
| 144 | } else { |
| 145 | LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) |
| 146 | << " has NO session"; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Clean up the audio platform as remote audio device is no |
| 151 | * longer active |
| 152 | */ |
| 153 | stack_iface_ = nullptr; |
| 154 | audio_config_ = {}; |
| 155 | |
| 156 | return Void(); |
| 157 | } |
| 158 | |
| 159 | } // namespace implementation |
| 160 | } // namespace V2_1 |
| 161 | } // namespace audio |
| 162 | } // namespace bluetooth |
| 163 | } // namespace hardware |
| 164 | } // namespace android |