Add bluetooth.audio@2.2 implementation
Bug: 201292721
Bug: 150670922
Bug: 197297498
Test: m android.hardware.bluetooth.audio@2.2-impl
Change-Id: I224b1e001337165e5191060f0ae532933a419b68
diff --git a/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
new file mode 100644
index 0000000..7b70654
--- /dev/null
+++ b/bluetooth/audio/2.2/default/LeAudioOffloadAudioProvider.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2021 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.
+ */
+
+#define LOG_TAG "BTAudioProviderLeAudioOffload"
+
+#include "LeAudioOffloadAudioProvider.h"
+
+#include <android-base/logging.h>
+
+#include "BluetoothAudioSessionReport_2_2.h"
+#include "BluetoothAudioSupportedCodecsDB_2_1.h"
+#include "BluetoothAudioSupportedCodecsDB_2_2.h"
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+namespace V2_2 {
+namespace implementation {
+
+using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_2;
+using ::android::hardware::Void;
+using ::android::hardware::bluetooth::audio::V2_0::BitsPerSample;
+using ::android::hardware::bluetooth::audio::V2_0::ChannelMode;
+using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
+
+using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
+
+LeAudioOffloadOutputAudioProvider::LeAudioOffloadOutputAudioProvider()
+ : LeAudioOffloadAudioProvider() {
+ session_type_ =
+ V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
+}
+
+LeAudioOffloadInputAudioProvider::LeAudioOffloadInputAudioProvider()
+ : LeAudioOffloadAudioProvider() {
+ session_type_ =
+ V2_1::SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
+}
+
+LeAudioOffloadAudioProvider::LeAudioOffloadAudioProvider()
+ : BluetoothAudioProvider() {}
+
+bool LeAudioOffloadAudioProvider::isValid(
+ const V2_0::SessionType& sessionType) {
+ LOG(ERROR) << __func__
+ << ", invalid session type for Offloaded Le Audio provider: "
+ << toString(sessionType);
+
+ return false;
+}
+
+bool LeAudioOffloadAudioProvider::isValid(
+ const V2_1::SessionType& sessionType) {
+ return (sessionType == session_type_);
+}
+
+Return<void> LeAudioOffloadAudioProvider::startSession_2_1(
+ const sp<V2_0::IBluetoothAudioPort>& hostIf,
+ const V2_1::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
+ if (audioConfig.getDiscriminator() !=
+ V2_1::AudioConfiguration::hidl_discriminator::leAudioCodecConfig) {
+ LOG(WARNING) << __func__
+ << " - Invalid Audio Configuration=" << toString(audioConfig);
+ _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
+ DataMQ::Descriptor());
+ return Void();
+ }
+
+ AudioConfiguration audioConfig_2_2;
+ audioConfig_2_2.leAudioConfig().mode = LeAudioMode::UNKNOWN;
+ audioConfig_2_2.leAudioConfig().config.unicastConfig() = {
+ .streamMap = {{
+ .streamHandle = 0xFFFF,
+ .audioChannelAllocation =
+ audioConfig.leAudioCodecConfig().audioChannelAllocation,
+ }},
+ .peerDelay = 0,
+ .lc3Config = audioConfig.leAudioCodecConfig().lc3Config};
+
+ return startSession_2_2(hostIf, audioConfig_2_2, _hidl_cb);
+}
+
+Return<void> LeAudioOffloadAudioProvider::startSession_2_2(
+ const sp<V2_0::IBluetoothAudioPort>& hostIf,
+ const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
+ /**
+ * Initialize the audio platform if audioConfiguration is supported.
+ * Save the IBluetoothAudioPort interface, so that it can be used
+ * later to send stream control commands to the HAL client, based on
+ * interaction with Audio framework.
+ */
+ if (audioConfig.getDiscriminator() !=
+ AudioConfiguration::hidl_discriminator::leAudioConfig) {
+ LOG(WARNING) << __func__
+ << " - Invalid Audio Configuration=" << toString(audioConfig);
+ _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
+ DataMQ::Descriptor());
+ return Void();
+ }
+
+ if (!android::bluetooth::audio::IsOffloadLeAudioConfigurationValid(
+ session_type_, audioConfig.leAudioConfig())) {
+ LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
+ << toString(audioConfig.leAudioConfig());
+ _hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
+ DataMQ::Descriptor());
+ return Void();
+ }
+
+ return BluetoothAudioProvider::startSession_2_2(hostIf, audioConfig,
+ _hidl_cb);
+}
+
+Return<void> LeAudioOffloadAudioProvider::onSessionReady(
+ startSession_cb _hidl_cb) {
+ BluetoothAudioSessionReport_2_2::OnSessionStarted(session_type_, stack_iface_,
+ nullptr, audio_config_);
+ _hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
+ return Void();
+}
+
+} // namespace implementation
+} // namespace V2_2
+} // namespace audio
+} // namespace bluetooth
+} // namespace hardware
+} // namespace android