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/*
* 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_1.h"
#include "BluetoothAudioSupportedCodecsDB_2_1.h"
namespace android {
namespace hardware {
namespace bluetooth {
namespace audio {
namespace V2_1 {
namespace implementation {
using ::android::bluetooth::audio::BluetoothAudioSessionReport_2_1;
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_ = SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
}
LeAudioOffloadInputAudioProvider::LeAudioOffloadInputAudioProvider()
: LeAudioOffloadAudioProvider() {
session_type_ = 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 SessionType& sessionType) {
return (sessionType == session_type_);
}
Return<void> LeAudioOffloadAudioProvider::startSession_2_1(
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::leAudioCodecConfig) {
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.leAudioCodecConfig())) {
LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
<< toString(audioConfig.leAudioCodecConfig());
_hidl_cb(BluetoothAudioStatus::UNSUPPORTED_CODEC_CONFIGURATION,
DataMQ::Descriptor());
return Void();
}
return BluetoothAudioProvider::startSession_2_1(hostIf, audioConfig,
_hidl_cb);
}
Return<void> LeAudioOffloadAudioProvider::onSessionReady(startSession_cb _hidl_cb) {
BluetoothAudioSessionReport_2_1::OnSessionStarted(session_type_, stack_iface_,
nullptr, audio_config_);
_hidl_cb(BluetoothAudioStatus::SUCCESS, DataMQ::Descriptor());
return Void();
}
} // namespace implementation
} // namespace V2_1
} // namespace audio
} // namespace bluetooth
} // namespace hardware
} // namespace android
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