brillo/audio/audioservice/brillo_audio_service.cpp

// Copyright 2016 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.
//

// Implementation of brillo_audio_service.h

#include "brillo_audio_service.h"

using android::binder::Status;

namespace brillo {

Status BrilloAudioService::GetDevices(int flag,
                                      std::vector<int>* _aidl_return) {
  auto device_handler = audio_device_handler_.lock();
  if (device_handler) {
    return Status::fromExceptionCode(
        Status::EX_SERVICE_SPECIFIC,
        android::String8("The audio device handler died."));
  }
  if (flag == BrilloAudioService::GET_DEVICES_INPUTS) {
    device_handler->GetInputDevices(_aidl_return);
  } else if (flag == BrilloAudioService::GET_DEVICES_OUTPUTS) {
    device_handler->GetOutputDevices(_aidl_return);
  } else {
    return Status::fromExceptionCode(Status::EX_SERVICE_SPECIFIC,
                                     android::String8("Invalid flag."));
  }
  return Status::ok();
}

Status BrilloAudioService::RegisterServiceCallback(
    const android::sp<IAudioServiceCallback>& callback) {
  callbacks_set_.insert(callback);
  return Status::ok();
}

Status BrilloAudioService::UnregisterServiceCallback(
    const android::sp<IAudioServiceCallback>& callback) {
  callbacks_set_.erase(callback);
  return Status::ok();
}

void BrilloAudioService::RegisterDeviceHandler(
    std::weak_ptr<AudioDeviceHandler> audio_device_handler) {
  audio_device_handler_ = audio_device_handler;
}

void BrilloAudioService::OnDevicesConnected(const std::vector<int>& devices) {
  for (auto callback : callbacks_set_) {
    callback->OnAudioDevicesConnected(devices);
  }
}

void BrilloAudioService::OnDevicesDisconnected(const std::vector<int>& devices) {
  for (auto callback : callbacks_set_) {
    callback->OnAudioDevicesDisconnected(devices);
  }
}

}  // namespace brillo