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/*
* Copyright 2020 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 "BTAudioProviderStub"
#include "BluetoothAudioProvider.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::kSynchronizedReadWrite;
using ::android::hardware::MessageQueue;
using ::android::hardware::Void;
using DataMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
void BluetoothAudioDeathRecipient::serviceDied(
uint64_t cookie __unused,
const wp<::android::hidl::base::V1_0::IBase>& who __unused) {
LOG(ERROR) << "BluetoothAudioDeathRecipient::" << __func__
<< " - BluetoothAudio Service died";
provider_->endSession();
}
BluetoothAudioProvider::BluetoothAudioProvider()
: death_recipient_(new BluetoothAudioDeathRecipient(this)),
session_type_(SessionType::UNKNOWN),
audio_config_({}) {}
Return<void> BluetoothAudioProvider::startSession(
const sp<IBluetoothAudioPort>& hostIf,
const V2_0::AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
AudioConfiguration audioConfig_2_1;
if (audioConfig.getDiscriminator() ==
V2_0::AudioConfiguration::hidl_discriminator::pcmConfig) {
audioConfig_2_1.pcmConfig({
.sampleRate =
static_cast<SampleRate>(audioConfig.pcmConfig().sampleRate),
.channelMode = audioConfig.pcmConfig().channelMode,
.bitsPerSample = audioConfig.pcmConfig().bitsPerSample,
.dataIntervalUs = 0});
} else {
audioConfig_2_1.codecConfig(audioConfig.codecConfig());
}
return startSession_2_1(hostIf, audioConfig_2_1, _hidl_cb);
}
Return<void> BluetoothAudioProvider::startSession_2_1(
const sp<IBluetoothAudioPort>& hostIf,
const AudioConfiguration& audioConfig, startSession_cb _hidl_cb) {
if (hostIf == nullptr) {
_hidl_cb(BluetoothAudioStatus::FAILURE, DataMQ::Descriptor());
return Void();
}
/**
* 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.
*/
audio_config_ = audioConfig;
stack_iface_ = hostIf;
stack_iface_->linkToDeath(death_recipient_, 0);
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< ", AudioConfiguration=[" << toString(audio_config_) << "]";
onSessionReady(_hidl_cb);
return Void();
}
Return<void> BluetoothAudioProvider::streamStarted(
BluetoothAudioStatus status) {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< ", status=" << toString(status);
/**
* Streaming on control path has started,
* HAL server should start the streaming on data path.
*/
if (stack_iface_) {
BluetoothAudioSessionReport_2_1::ReportControlStatus(session_type_, true,
status);
} else {
LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
<< ", status=" << toString(status) << " has NO session";
}
return Void();
}
Return<void> BluetoothAudioProvider::streamSuspended(
BluetoothAudioStatus status) {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< ", status=" << toString(status);
/**
* Streaming on control path has suspend,
* HAL server should suspend the streaming on data path.
*/
if (stack_iface_) {
BluetoothAudioSessionReport_2_1::ReportControlStatus(session_type_, false,
status);
} else {
LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
<< ", status=" << toString(status) << " has NO session";
}
return Void();
}
Return<void> BluetoothAudioProvider::endSession() {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
if (stack_iface_) {
BluetoothAudioSessionReport_2_1::OnSessionEnded(session_type_);
stack_iface_->unlinkToDeath(death_recipient_);
} else {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< " has NO session";
}
/**
* Clean up the audio platform as remote audio device is no
* longer active
*/
stack_iface_ = nullptr;
audio_config_ = {};
return Void();
}
} // namespace implementation
} // namespace V2_1
} // namespace audio
} // namespace bluetooth
} // namespace hardware
} // namespace android
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