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137 lines
3.8 KiB
137 lines
3.8 KiB
// Copyright (C) 2020 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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#define LOG_TAG "audio_proxy_client"
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#include "AudioProxyManager.h"
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#include <mutex>
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// clang-format off
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#include PATH(device/google/atv/audio_proxy/AUDIO_PROXY_FILE_VERSION/IAudioProxyDevicesManager.h)
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// clang-format on
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#include <hidl/HidlTransportSupport.h>
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#include <utils/Log.h>
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#include "AudioProxyDevice.h"
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#include "BusDeviceImpl.h"
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#define QUOTE(s) #s
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#define TO_STR(s) QUOTE(s)
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using ::android::sp;
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using ::android::status_t;
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using ::android::hardware::hidl_death_recipient;
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using ::android::hardware::Return;
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using ::device::google::atv::audio_proxy::AUDIO_PROXY_CPP_VERSION::
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IAudioProxyDevicesManager;
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namespace audio_proxy {
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namespace AUDIO_PROXY_CPP_VERSION {
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namespace {
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bool checkDevice(audio_proxy_device_t* device) {
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return device && device->get_address && device->open_output_stream &&
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device->close_output_stream;
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}
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class DeathRecipient;
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class AudioProxyManagerImpl : public AudioProxyManager {
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public:
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explicit AudioProxyManagerImpl(const sp<IAudioProxyDevicesManager>& manager);
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~AudioProxyManagerImpl() override = default;
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bool registerDevice(audio_proxy_device_t* device) override;
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void reconnectService();
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private:
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std::mutex mLock;
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sp<IAudioProxyDevicesManager> mService;
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std::unique_ptr<AudioProxyDevice> mDevice;
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sp<DeathRecipient> mDeathRecipient;
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};
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class DeathRecipient : public hidl_death_recipient {
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public:
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explicit DeathRecipient(AudioProxyManagerImpl& manager) : mManager(manager) {}
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~DeathRecipient() override = default;
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void serviceDied(
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uint64_t cookie,
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const android::wp<::android::hidl::base::V1_0::IBase>& who) override {
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mManager.reconnectService();
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}
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private:
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AudioProxyManagerImpl& mManager;
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};
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AudioProxyManagerImpl::AudioProxyManagerImpl(
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const sp<IAudioProxyDevicesManager>& manager)
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: mService(manager), mDeathRecipient(new DeathRecipient(*this)) {
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mService->linkToDeath(mDeathRecipient, 1234);
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}
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bool AudioProxyManagerImpl::registerDevice(audio_proxy_device_t* device) {
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if (!checkDevice(device)) {
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ALOGE("Invalid device.");
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return false;
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}
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std::lock_guard<std::mutex> guard(mLock);
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if (mDevice) {
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ALOGE("Device already registered!");
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return false;
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}
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mDevice = std::make_unique<AudioProxyDevice>(device);
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const char* address = mDevice->getAddress();
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return mService->registerDevice(address, new BusDeviceImpl(mDevice.get()));
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}
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void AudioProxyManagerImpl::reconnectService() {
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std::lock_guard<std::mutex> guard(mLock);
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mService = IAudioProxyDevicesManager::getService();
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if (!mService) {
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ALOGE("Failed to reconnect service");
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return;
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}
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if (mDevice) {
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bool success = mService->registerDevice(mDevice->getAddress(),
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new BusDeviceImpl(mDevice.get()));
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ALOGE_IF(!success, "fail to register device after reconnect.");
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}
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}
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} // namespace
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std::unique_ptr<AudioProxyManager> createAudioProxyManager() {
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auto service = IAudioProxyDevicesManager::getService();
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if (!service) {
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return nullptr;
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}
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ALOGI("Connect to audio proxy service %s", TO_STR(AUDIO_PROXY_FILE_VERSION));
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return std::make_unique<AudioProxyManagerImpl>(service);
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}
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} // namespace AUDIO_PROXY_CPP_VERSION
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} // namespace audio_proxy
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