packages/modules/Bluetooth/system/audio_hal_interface/hal_version_manager.h

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C++

/*
* 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.
*/
#pragma once
#include <android/hardware/bluetooth/audio/2.1/IBluetoothAudioProvidersFactory.h>
#include <android/hardware/bluetooth/audio/2.1/types.h>
namespace bluetooth {
namespace audio {
using ::android::hardware::hidl_vec;
using IBluetoothAudioProvidersFactory_2_0 = ::android::hardware::bluetooth::
audio::V2_0::IBluetoothAudioProvidersFactory;
using IBluetoothAudioProvidersFactory_2_1 = ::android::hardware::bluetooth::
audio::V2_1::IBluetoothAudioProvidersFactory;
constexpr char kFullyQualifiedInterfaceName_2_0[] =
"android.hardware.bluetooth.audio@2.0::IBluetoothAudioProvidersFactory";
constexpr char kFullyQualifiedInterfaceName_2_1[] =
"android.hardware.bluetooth.audio@2.1::IBluetoothAudioProvidersFactory";
enum class BluetoothAudioHalVersion : uint8_t {
VERSION_UNAVAILABLE = 0,
VERSION_2_0,
VERSION_2_1,
VERSION_AIDL_V1,
};
enum class BluetoothAudioHalTransport : uint8_t {
// Uninit, default value
UNKNOWN,
// No HAL available after init or force disabled
DISABLED,
AIDL,
HIDL,
};
class HalVersionManager {
public:
static BluetoothAudioHalVersion GetHalVersion();
static BluetoothAudioHalTransport GetHalTransport();
static android::sp<IBluetoothAudioProvidersFactory_2_1>
GetProvidersFactory_2_1();
static android::sp<IBluetoothAudioProvidersFactory_2_0>
GetProvidersFactory_2_0();
HalVersionManager();
private:
static std::unique_ptr<HalVersionManager> instance_ptr;
std::mutex mutex_;
BluetoothAudioHalVersion hal_version_;
};
} // namespace audio
} // namespace bluetooth