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// Copyright (C) 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.
#include "AudioProxyDevicesManagerImpl.h"
#include <utils/Log.h>
using ::android::OK;
using ::android::status_t;
using ::device::google::atv::audio_proxy::AUDIO_PROXY_CPP_VERSION::IBusDevice;
namespace audio_proxy {
namespace service {
namespace {
template<typename D>
class BusDeviceVersionWrapper : public IBusDevice {
public:
explicit BusDeviceVersionWrapper(const sp<D>& device) : mDevice(device) {}
~BusDeviceVersionWrapper() override = default;
Return<void> openOutputStream(int32_t ioHandle, const DeviceAddress& device,
const AudioConfig& config,
hidl_bitfield<AudioOutputFlag> flags,
const SourceMetadata& sourceMetadata,
openOutputStream_cb _hidl_cb) override {
return mDevice->openOutputStream(ioHandle, device, config, flags,
sourceMetadata, std::move(_hidl_cb));
}
private:
const sp<D> mDevice;
};
} // namespace
AudioProxyDevicesManagerImpl::AudioProxyDevicesManagerImpl() {
// We need to register the factory service when this is instantiated,
// rather than when the first client registers in order to not break VTS.
ensureDevicesFactory();
}
AudioProxyDevicesManagerImpl::~AudioProxyDevicesManagerImpl() = default;
Return<bool> AudioProxyDevicesManagerImpl::registerDevice(
const hidl_string& address,
const sp<::device::google::atv::audio_proxy::CPP_VERSION::IBusDevice>&
device) {
if (address.empty() || !device) {
return false;
}
sp<IBusDevice> busDevice = IBusDevice::castFrom(device);
if (!busDevice) {
ALOGW("Client registers lower version bus device at %s", address.c_str());
busDevice = new BusDeviceVersionWrapper(device);
}
if (!mBusDeviceProvider.add(address, busDevice)) {
ALOGE("Failed to register bus device with addr %s", address.c_str());
return false;
}
if (!ensureDevicesFactory()) {
ALOGE("Failed to register audio devices factory.");
mBusDeviceProvider.removeAll();
return false;
}
return true;
}
bool AudioProxyDevicesManagerImpl::ensureDevicesFactory() {
sp<DevicesFactoryImpl> factory = mDevicesFactory.promote();
if (factory) {
return true;
}
factory = new DevicesFactoryImpl(mBusDeviceProvider);
status_t status = factory->registerAsService("audio_proxy");
if (status != OK) {
return false;
}
mDevicesFactory = factory;
return true;
}
} // namespace service
} // namespace audio_proxy