1 /* 2 * Copyright (C) 2016 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.telecom.bluetooth; 18 19 import android.bluetooth.BluetoothDevice; 20 import android.bluetooth.BluetoothHeadset; 21 import android.bluetooth.BluetoothManager; 22 import android.bluetooth.BluetoothProfile; 23 import android.content.BroadcastReceiver; 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.IntentFilter; 27 import android.telecom.Log; 28 29 import com.android.server.telecom.BluetoothAdapterProxy; 30 import com.android.server.telecom.BluetoothHeadsetProxy; 31 import com.android.server.telecom.TelecomSystem; 32 33 import java.util.Collection; 34 import java.util.LinkedHashMap; 35 import java.util.LinkedList; 36 import java.util.List; 37 import java.util.Map; 38 import java.util.Objects; 39 import java.util.stream.Collectors; 40 41 public class BluetoothDeviceManager { 42 private final BluetoothProfile.ServiceListener mBluetoothProfileServiceListener = 43 new BluetoothProfile.ServiceListener() { 44 @Override 45 public void onServiceConnected(int profile, BluetoothProfile proxy) { 46 Log.startSession("BMSL.oSC"); 47 try { 48 synchronized (mLock) { 49 if (profile == BluetoothProfile.HEADSET) { 50 mBluetoothHeadsetService = 51 new BluetoothHeadsetProxy((BluetoothHeadset) proxy); 52 Log.i(this, "- Got BluetoothHeadset: " + mBluetoothHeadsetService); 53 } else { 54 Log.w(this, "Connected to non-headset bluetooth service." + 55 " Not changing bluetooth headset."); 56 } 57 } 58 } finally { 59 Log.endSession(); 60 } 61 } 62 63 @Override 64 public void onServiceDisconnected(int profile) { 65 Log.startSession("BMSL.oSD"); 66 try { 67 synchronized (mLock) { 68 mBluetoothHeadsetService = null; 69 Log.i(BluetoothDeviceManager.this, "Lost BluetoothHeadset service. " + 70 "Removing all tracked devices."); 71 List<BluetoothDevice> devicesToRemove = new LinkedList<>( 72 mConnectedDevicesByAddress.values()); 73 mConnectedDevicesByAddress.clear(); 74 for (BluetoothDevice device : devicesToRemove) { 75 mBluetoothRouteManager.onDeviceLost(device.getAddress()); 76 } 77 } 78 } finally { 79 Log.endSession(); 80 } 81 } 82 }; 83 84 private final LinkedHashMap<String, BluetoothDevice> mConnectedDevicesByAddress = 85 new LinkedHashMap<>(); 86 private final TelecomSystem.SyncRoot mLock; 87 88 private BluetoothRouteManager mBluetoothRouteManager; 89 private BluetoothHeadsetProxy mBluetoothHeadsetService; 90 BluetoothDeviceManager(Context context, BluetoothAdapterProxy bluetoothAdapter, TelecomSystem.SyncRoot lock)91 public BluetoothDeviceManager(Context context, BluetoothAdapterProxy bluetoothAdapter, 92 TelecomSystem.SyncRoot lock) { 93 mLock = lock; 94 95 if (bluetoothAdapter != null) { 96 bluetoothAdapter.getProfileProxy(context, mBluetoothProfileServiceListener, 97 BluetoothProfile.HEADSET); 98 } 99 } 100 setBluetoothRouteManager(BluetoothRouteManager brm)101 public void setBluetoothRouteManager(BluetoothRouteManager brm) { 102 mBluetoothRouteManager = brm; 103 } 104 getNumConnectedDevices()105 public int getNumConnectedDevices() { 106 return mConnectedDevicesByAddress.size(); 107 } 108 getConnectedDevices()109 public Collection<BluetoothDevice> getConnectedDevices() { 110 return mConnectedDevicesByAddress.values(); 111 } 112 getMostRecentlyConnectedDevice(String excludeAddress)113 public String getMostRecentlyConnectedDevice(String excludeAddress) { 114 String result = null; 115 synchronized (mLock) { 116 for (String addr : mConnectedDevicesByAddress.keySet()) { 117 if (!Objects.equals(addr, excludeAddress)) { 118 result = addr; 119 } 120 } 121 } 122 return result; 123 } 124 getHeadsetService()125 public BluetoothHeadsetProxy getHeadsetService() { 126 return mBluetoothHeadsetService; 127 } 128 setHeadsetServiceForTesting(BluetoothHeadsetProxy bluetoothHeadset)129 public void setHeadsetServiceForTesting(BluetoothHeadsetProxy bluetoothHeadset) { 130 mBluetoothHeadsetService = bluetoothHeadset; 131 } 132 getDeviceFromAddress(String address)133 public BluetoothDevice getDeviceFromAddress(String address) { 134 return mConnectedDevicesByAddress.get(address); 135 } 136 onDeviceConnected(BluetoothDevice device)137 void onDeviceConnected(BluetoothDevice device) { 138 synchronized (mLock) { 139 if (!mConnectedDevicesByAddress.containsKey(device.getAddress())) { 140 mConnectedDevicesByAddress.put(device.getAddress(), device); 141 mBluetoothRouteManager.onDeviceAdded(device.getAddress()); 142 } 143 } 144 } 145 onDeviceDisconnected(BluetoothDevice device)146 void onDeviceDisconnected(BluetoothDevice device) { 147 synchronized (mLock) { 148 if (mConnectedDevicesByAddress.containsKey(device.getAddress())) { 149 mConnectedDevicesByAddress.remove(device.getAddress()); 150 mBluetoothRouteManager.onDeviceLost(device.getAddress()); 151 } 152 } 153 } 154 } 155