| /* |
| * Copyright 2022 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. |
| */ |
| |
| #include "a2dp_encoding.h" |
| |
| #include <vector> |
| |
| #include "aidl/a2dp_encoding_aidl.h" |
| #include "hal_version_manager.h" |
| #include "hidl/a2dp_encoding_hidl.h" |
| |
| namespace bluetooth { |
| namespace audio { |
| namespace a2dp { |
| |
| bool update_codec_offloading_capabilities( |
| const std::vector<btav_a2dp_codec_config_t>& framework_preference, |
| bool supports_a2dp_hw_offload_v2) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::update_codec_offloading_capabilities( |
| framework_preference); |
| } |
| return aidl::a2dp::update_codec_offloading_capabilities( |
| framework_preference, supports_a2dp_hw_offload_v2); |
| } |
| |
| // Check if new bluetooth_audio is enabled |
| bool is_hal_enabled() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::is_hal_2_0_enabled(); |
| } |
| return aidl::a2dp::is_hal_enabled(); |
| } |
| |
| // Check if new bluetooth_audio is running with offloading encoders |
| bool is_hal_offloading() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::is_hal_2_0_offloading(); |
| } |
| return aidl::a2dp::is_hal_offloading(); |
| } |
| |
| // Initialize BluetoothAudio HAL: openProvider |
| bool init(bluetooth::common::MessageLoopThread* message_loop) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::init(message_loop); |
| } |
| return aidl::a2dp::init(message_loop); |
| } |
| |
| // Clean up BluetoothAudio HAL |
| void cleanup() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::cleanup(); |
| return; |
| } |
| aidl::a2dp::cleanup(); |
| } |
| |
| // Set up the codec into BluetoothAudio HAL |
| bool setup_codec() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::setup_codec(); |
| } |
| return aidl::a2dp::setup_codec(); |
| } |
| |
| // Send command to the BluetoothAudio HAL: StartSession, EndSession, |
| // StreamStarted, StreamSuspended |
| void start_session() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::start_session(); |
| return; |
| } |
| aidl::a2dp::start_session(); |
| } |
| void end_session() { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) { |
| return aidl::a2dp::end_session(); |
| } |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::end_session(); |
| return; |
| } |
| } |
| void ack_stream_started(const tA2DP_CTRL_ACK& status) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::ack_stream_started(status); |
| return; |
| } |
| return aidl::a2dp::ack_stream_started(status); |
| } |
| void ack_stream_suspended(const tA2DP_CTRL_ACK& status) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::ack_stream_suspended(status); |
| return; |
| } |
| aidl::a2dp::ack_stream_suspended(status); |
| } |
| |
| // Read from the FMQ of BluetoothAudio HAL |
| size_t read(uint8_t* p_buf, uint32_t len) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| return hidl::a2dp::read(p_buf, len); |
| } |
| return aidl::a2dp::read(p_buf, len); |
| } |
| |
| // Update A2DP delay report to BluetoothAudio HAL |
| void set_remote_delay(uint16_t delay_report) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::HIDL) { |
| hidl::a2dp::set_remote_delay(delay_report); |
| return; |
| } |
| aidl::a2dp::set_remote_delay(delay_report); |
| } |
| |
| // Set low latency buffer mode allowed or disallowed |
| void set_audio_low_latency_mode_allowed(bool allowed) { |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) { |
| aidl::a2dp::set_low_latency_mode_allowed(allowed); |
| } |
| } |
| |
| // Check if OPUS codec is supported |
| bool is_opus_supported() { |
| // OPUS codec was added after HIDL HAL was frozen |
| if (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) { |
| return true; |
| } |
| return false; |
| } |
| |
| namespace provider { |
| |
| // Lookup the codec info in the list of supported offloaded sink codecs. |
| std::optional<btav_a2dp_codec_index_t> sink_codec_index( |
| const uint8_t* p_codec_info) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::sink_codec_index(p_codec_info) |
| : std::nullopt; |
| } |
| |
| // Lookup the codec info in the list of supported offloaded source codecs. |
| std::optional<btav_a2dp_codec_index_t> source_codec_index( |
| const uint8_t* p_codec_info) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::source_codec_index(p_codec_info) |
| : std::nullopt; |
| } |
| |
| // Return the name of the codec which is assigned to the input index. |
| // The codec index must be in the ranges |
| // BTAV_A2DP_CODEC_INDEX_SINK_EXT_MIN..BTAV_A2DP_CODEC_INDEX_SINK_EXT_MAX or |
| // BTAV_A2DP_CODEC_INDEX_SOURCE_EXT_MIN..BTAV_A2DP_CODEC_INDEX_SOURCE_EXT_MAX. |
| // Returns nullopt if the codec_index is not assigned or codec extensibility |
| // is not supported or enabled. |
| std::optional<const char*> codec_index_str( |
| btav_a2dp_codec_index_t codec_index) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::codec_index_str(codec_index) |
| : std::nullopt; |
| } |
| |
| // Return true if the codec is supported for the session type |
| // A2DP_HARDWARE_ENCODING_DATAPATH or A2DP_HARDWARE_DECODING_DATAPATH. |
| bool supports_codec(btav_a2dp_codec_index_t codec_index) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::supports_codec(codec_index) |
| : false; |
| } |
| |
| // Return the A2DP capabilities for the selected codec. |
| bool codec_info(btav_a2dp_codec_index_t codec_index, uint64_t* codec_id, |
| uint8_t* codec_info, btav_a2dp_codec_config_t* codec_config) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::codec_info(codec_index, codec_id, |
| codec_info, codec_config) |
| : false; |
| } |
| |
| // Query the codec selection fromt the audio HAL. |
| // The HAL is expected to pick the best audio configuration based on the |
| // discovered remote SEPs. |
| std::optional<a2dp_configuration> get_a2dp_configuration( |
| RawAddress peer_address, |
| std::vector<a2dp_remote_capabilities> const& remote_seps, |
| btav_a2dp_codec_config_t const& user_preferences) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::get_a2dp_configuration( |
| peer_address, remote_seps, user_preferences) |
| : std::nullopt; |
| } |
| |
| // Query the codec parameters from the audio HAL. |
| // The HAL performs a two part validation: |
| // - check if the configuration is valid |
| // - check if the configuration is supported by the audio provider |
| // In case any of these checks fails, the corresponding A2DP |
| // status is returned. If the configuration is valid and supported, |
| // A2DP_OK is returned. |
| tA2DP_STATUS parse_a2dp_configuration( |
| btav_a2dp_codec_index_t codec_index, const uint8_t* codec_info, |
| btav_a2dp_codec_config_t* codec_parameters, |
| std::vector<uint8_t>* vendor_specific_parameters) { |
| return (HalVersionManager::GetHalTransport() == |
| BluetoothAudioHalTransport::AIDL) |
| ? aidl::a2dp::provider::parse_a2dp_configuration( |
| codec_index, codec_info, codec_parameters, |
| vendor_specific_parameters) |
| : A2DP_FAIL; |
| } |
| |
| } // namespace provider |
| } // namespace a2dp |
| } // namespace audio |
| } // namespace bluetooth |