1 /**
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.server.broadcastradio;
18 
19 import android.Manifest;
20 import android.annotation.SuppressLint;
21 import android.content.Context;
22 import android.content.pm.PackageManager;
23 import android.hardware.radio.IRadioService;
24 
25 import com.android.server.SystemService;
26 
27 import java.util.ArrayList;
28 
29 public final class BroadcastRadioService extends SystemService {
30     private final IRadioService mServiceImpl;
31 
BroadcastRadioService(Context context)32     public BroadcastRadioService(Context context) {
33         super(context);
34         ArrayList<String> serviceNameList = IRadioServiceAidlImpl.getServicesNames();
35         mServiceImpl = serviceNameList.isEmpty() ? new IRadioServiceHidlImpl(this)
36                 : new IRadioServiceAidlImpl(this, serviceNameList);
37     }
38 
39     @Override
onStart()40     public void onStart() {
41         publishBinderService(Context.RADIO_SERVICE, mServiceImpl.asBinder());
42     }
43 
44     @SuppressLint("AndroidFrameworkRequiresPermission")
enforcePolicyAccess()45     void enforcePolicyAccess() {
46         if (getContext().checkCallingPermission(Manifest.permission.ACCESS_BROADCAST_RADIO)
47                 != PackageManager.PERMISSION_GRANTED) {
48             throw new SecurityException("ACCESS_BROADCAST_RADIO permission not granted");
49         }
50     }
51 }
52