Bailey Forrest | 780e29c | 2018-08-21 17:20:29 -0700 | [diff] [blame] | 1 | // |
| 2 | // Copyright (C) 2017 Google, Inc. |
| 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 | #include "service/a2dp_source.h" |
| 18 | |
| 19 | #include "base/logging.h" |
| 20 | #include "base/memory/ptr_util.h" |
| 21 | #include "service/logging_helpers.h" |
| 22 | |
| 23 | #define PARSE_ADDR(str) \ |
| 24 | ({ \ |
| 25 | RawAddress tmp; \ |
| 26 | if (!RawAddress::FromString((str), tmp)) { \ |
| 27 | LOG(ERROR) << "Invalid device address given: " << (str); \ |
| 28 | return false; \ |
| 29 | } \ |
| 30 | tmp; \ |
| 31 | }) |
| 32 | |
| 33 | #define TRY_RET(expr, err_msg) \ |
| 34 | do { \ |
| 35 | if (!(expr)) { \ |
| 36 | LOG(ERROR) << err_msg; \ |
| 37 | return false; \ |
| 38 | } \ |
| 39 | return true; \ |
| 40 | } while (0) |
| 41 | |
| 42 | #define TRY_RET_FUNC(expr) TRY_RET(expr, __func__ << " failed") |
| 43 | |
| 44 | using bluetooth::hal::BluetoothAvInterface; |
| 45 | using LockGuard = std::lock_guard<std::mutex>; |
| 46 | |
| 47 | namespace bluetooth { |
| 48 | |
| 49 | namespace { |
| 50 | |
| 51 | btav_a2dp_codec_config_t CodecConfigToFluoride(const A2dpCodecConfig& config) { |
| 52 | btav_a2dp_codec_config_t ret = { |
| 53 | .codec_type = static_cast<btav_a2dp_codec_index_t>(config.codec_type()), |
| 54 | .codec_priority = |
| 55 | static_cast<btav_a2dp_codec_priority_t>(config.codec_priority()), |
| 56 | .sample_rate = |
| 57 | static_cast<btav_a2dp_codec_sample_rate_t>(config.sample_rate()), |
| 58 | .bits_per_sample = static_cast<btav_a2dp_codec_bits_per_sample_t>( |
| 59 | config.bits_per_sample()), |
| 60 | .channel_mode = |
| 61 | static_cast<btav_a2dp_codec_channel_mode_t>(config.channel_mode()), |
| 62 | .codec_specific_1 = config.codec_specific_1(), |
| 63 | .codec_specific_2 = config.codec_specific_2(), |
| 64 | .codec_specific_3 = config.codec_specific_3(), |
| 65 | .codec_specific_4 = config.codec_specific_4(), |
| 66 | }; |
| 67 | |
| 68 | return ret; |
| 69 | } |
| 70 | |
| 71 | std::vector<btav_a2dp_codec_config_t> CodecConfigsToFluoride( |
| 72 | const std::vector<A2dpCodecConfig>& configs) { |
| 73 | std::vector<btav_a2dp_codec_config_t> ret; |
| 74 | ret.reserve(configs.size()); |
| 75 | for (const auto& config : configs) { |
| 76 | ret.push_back(CodecConfigToFluoride(config)); |
| 77 | } |
| 78 | |
| 79 | return ret; |
| 80 | } |
| 81 | A2dpCodecConfig FluorideCodecToCodec(const btav_a2dp_codec_config_t& config) { |
| 82 | A2dpCodecConfig ret(config.codec_type, config.codec_priority, |
| 83 | config.sample_rate, config.bits_per_sample, |
| 84 | config.channel_mode, config.codec_specific_1, |
| 85 | config.codec_specific_2, config.codec_specific_3, |
| 86 | config.codec_specific_4); |
| 87 | |
| 88 | return ret; |
| 89 | } |
| 90 | |
| 91 | std::vector<A2dpCodecConfig> FluorideCodecsToCodec( |
| 92 | const std::vector<btav_a2dp_codec_config_t>& configs) { |
| 93 | std::vector<A2dpCodecConfig> ret; |
| 94 | ret.reserve(configs.size()); |
| 95 | for (const auto& config : configs) { |
| 96 | ret.push_back(FluorideCodecToCodec(config)); |
| 97 | } |
| 98 | |
| 99 | return ret; |
| 100 | } |
| 101 | |
| 102 | } // namespace |
| 103 | |
| 104 | // static |
| 105 | const int A2dpSource::kSingletonInstanceId = 0; |
| 106 | |
| 107 | A2dpSource::A2dpSource(const Uuid& uuid) : app_identifier_(uuid) { |
| 108 | hal::BluetoothAvInterface::Get()->AddA2dpSourceObserver(this); |
| 109 | } |
| 110 | |
| 111 | A2dpSource::~A2dpSource() { |
| 112 | hal::BluetoothAvInterface::Get()->RemoveA2dpSourceObserver(this); |
| 113 | } |
| 114 | |
| 115 | const Uuid& A2dpSource::GetAppIdentifier() const { return app_identifier_; } |
| 116 | |
| 117 | int A2dpSource::GetInstanceId() const { return kSingletonInstanceId; } |
| 118 | |
| 119 | void A2dpSource::SetDelegate(Delegate* delegate) { |
| 120 | LockGuard lock(delegate_mutex_); |
| 121 | delegate_ = delegate; |
| 122 | } |
| 123 | |
| 124 | bool A2dpSource::Enable(const std::vector<A2dpCodecConfig>& codec_priorities) { |
| 125 | auto fluoride_priorities = CodecConfigsToFluoride(codec_priorities); |
| 126 | LockGuard lock(mutex_); |
| 127 | return hal::BluetoothAvInterface::Get()->A2dpSourceEnable( |
| 128 | fluoride_priorities); |
| 129 | } |
| 130 | |
| 131 | void A2dpSource::Disable() { |
| 132 | LockGuard lock(mutex_); |
| 133 | hal::BluetoothAvInterface::Get()->A2dpSourceDisable(); |
| 134 | } |
| 135 | |
| 136 | bool A2dpSource::Connect(const std::string& device_address) { |
| 137 | RawAddress addr = PARSE_ADDR(device_address); |
| 138 | LockGuard lock(mutex_); |
| 139 | TRY_RET_FUNC( |
| 140 | hal::BluetoothAvInterface::Get()->GetA2dpSourceHALInterface()->connect( |
| 141 | addr) == BT_STATUS_SUCCESS); |
| 142 | } |
| 143 | |
| 144 | bool A2dpSource::Disconnect(const std::string& device_address) { |
| 145 | RawAddress addr = PARSE_ADDR(device_address); |
| 146 | LockGuard lock(mutex_); |
| 147 | TRY_RET_FUNC( |
| 148 | hal::BluetoothAvInterface::Get()->GetA2dpSourceHALInterface()->disconnect( |
| 149 | addr) == BT_STATUS_SUCCESS); |
| 150 | } |
| 151 | |
| 152 | bool A2dpSource::ConfigCodec( |
| 153 | const std::string& device_address, |
| 154 | const std::vector<A2dpCodecConfig>& codec_preferences) { |
| 155 | RawAddress addr = PARSE_ADDR(device_address); |
| 156 | auto fluoride_preferences = CodecConfigsToFluoride(codec_preferences); |
| 157 | LockGuard lock(mutex_); |
| 158 | TRY_RET_FUNC(hal::BluetoothAvInterface::Get() |
| 159 | ->GetA2dpSourceHALInterface() |
| 160 | ->config_codec(addr, fluoride_preferences) == |
| 161 | BT_STATUS_SUCCESS); |
| 162 | } |
| 163 | |
| 164 | void A2dpSource::ConnectionStateCallback(BluetoothAvInterface* iface, |
| 165 | const RawAddress& bd_addr, |
| 166 | btav_connection_state_t state) { |
| 167 | auto device_address = BtAddrString(&bd_addr); |
| 168 | LockGuard lock(delegate_mutex_); |
| 169 | if (delegate_) |
| 170 | delegate_->OnConnectionState(device_address, static_cast<int>(state)); |
| 171 | } |
| 172 | |
| 173 | void A2dpSource::AudioStateCallback(BluetoothAvInterface* iface, |
| 174 | const RawAddress& bd_addr, |
| 175 | btav_audio_state_t state) { |
| 176 | auto device_address = BtAddrString(&bd_addr); |
| 177 | LockGuard lock(delegate_mutex_); |
| 178 | if (delegate_) |
| 179 | delegate_->OnAudioState(device_address, static_cast<int>(state)); |
| 180 | } |
| 181 | |
| 182 | void A2dpSource::AudioConfigCallback( |
| 183 | BluetoothAvInterface* iface, const RawAddress& bd_addr, |
| 184 | const btav_a2dp_codec_config_t& codec_config_fluoride, |
| 185 | const std::vector<btav_a2dp_codec_config_t> |
| 186 | codecs_local_capabilities_fluoride, |
| 187 | const std::vector<btav_a2dp_codec_config_t> |
| 188 | codecs_selectable_capabilities_fluoride) { |
| 189 | auto device_address = BtAddrString(&bd_addr); |
| 190 | auto codec_config = FluorideCodecToCodec(codec_config_fluoride); |
| 191 | auto codecs_local_capabilities = |
| 192 | FluorideCodecsToCodec(codecs_local_capabilities_fluoride); |
| 193 | auto codecs_selectable_capabilities = |
| 194 | FluorideCodecsToCodec(codecs_selectable_capabilities_fluoride); |
| 195 | LockGuard lock(delegate_mutex_); |
| 196 | if (delegate_) |
| 197 | delegate_->OnAudioConfig(device_address, codec_config, |
| 198 | codecs_local_capabilities, |
| 199 | codecs_selectable_capabilities); |
| 200 | } |
| 201 | |
| 202 | // A2dpSourceFactory implementation |
| 203 | // ======================================================== |
| 204 | A2dpSourceFactory::A2dpSourceFactory() = default; |
| 205 | A2dpSourceFactory::~A2dpSourceFactory() = default; |
| 206 | |
| 207 | bool A2dpSourceFactory::RegisterInstance(const Uuid& uuid, |
| 208 | const RegisterCallback& callback) { |
| 209 | VLOG(1) << __func__ << " - UUID: " << uuid.ToString(); |
| 210 | |
| 211 | auto a2dp_source = base::WrapUnique(new A2dpSource(uuid)); |
| 212 | callback(BLE_STATUS_SUCCESS, uuid, std::move(a2dp_source)); |
| 213 | return true; |
| 214 | } |
| 215 | |
| 216 | } // namespace bluetooth |