47a8309706
This is the default implementation of Bluetooth Audio Hal v2, and 3 providers are defined. * BluetoothAudioProvider is the default provider, which is a stub when no SessionType matched. * A2dpSoftwareAudioProvider uses to replace the old A2DP legacy module and uses IPC via HIDL interface between Bluetooth stack and Audio HAL. * HearingAidAudioProvider uses to replace the Hearing Aids module which uses UNIX socket as IPC and now there is HIDL based interface. There is also a shared library named "libbluetooth_audio_session.so" to provide the linkage directly between this HIDL and its HAL module, bluetooth_audio. With this library, we can break the library dependency and guarantee those symbols of libraries while compiling. Bug: 111519504 Bug: 122503379 Test: boot and manual test Change-Id: I54d86291482b7fb041a3ac3e171b68a4ed7bfa07
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <android/hardware/bluetooth/audio/2.0/IBluetoothAudioProvider.h>
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namespace android {
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namespace hardware {
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namespace bluetooth {
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namespace audio {
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namespace V2_0 {
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namespace implementation {
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using ::android::sp;
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using ::android::hardware::bluetooth::audio::V2_0::AudioConfiguration;
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using ::android::hardware::bluetooth::audio::V2_0::SessionType;
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using BluetoothAudioStatus =
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::android::hardware::bluetooth::audio::V2_0::Status;
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class BluetoothAudioDeathRecipient;
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class BluetoothAudioProvider : public IBluetoothAudioProvider {
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public:
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BluetoothAudioProvider();
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~BluetoothAudioProvider() = default;
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virtual bool isValid(const SessionType& sessionType) = 0;
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Return<void> startSession(const sp<IBluetoothAudioPort>& hostIf,
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const AudioConfiguration& audioConfig,
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startSession_cb _hidl_cb) override;
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Return<void> streamStarted(BluetoothAudioStatus status) override;
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Return<void> streamSuspended(BluetoothAudioStatus status) override;
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Return<void> endSession() override;
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protected:
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sp<BluetoothAudioDeathRecipient> death_recipient_;
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SessionType session_type_;
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AudioConfiguration audio_config_;
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sp<IBluetoothAudioPort> stack_iface_;
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virtual Return<void> onSessionReady(startSession_cb _hidl_cb) = 0;
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};
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class BluetoothAudioDeathRecipient : public hidl_death_recipient {
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public:
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BluetoothAudioDeathRecipient(const sp<BluetoothAudioProvider> provider)
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: provider_(provider) {}
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virtual void serviceDied(
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uint64_t cookie,
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const wp<::android::hidl::base::V1_0::IBase>& who) override;
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private:
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sp<BluetoothAudioProvider> provider_;
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};
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} // namespace implementation
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} // namespace V2_0
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} // namespace audio
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} // namespace bluetooth
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} // namespace hardware
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} // namespace android
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