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      1 /*
      2  * Copyright (C) 2012 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.settingslib.bluetooth;
     18 
     19 import android.bluetooth.BluetoothAdapter;
     20 import android.bluetooth.BluetoothClass;
     21 import android.bluetooth.BluetoothDevice;
     22 import android.bluetooth.BluetoothHeadset;
     23 import android.bluetooth.BluetoothProfile;
     24 import android.bluetooth.BluetoothUuid;
     25 import android.content.Context;
     26 import android.os.ParcelUuid;
     27 import android.util.Log;
     28 
     29 import com.android.settingslib.R;
     30 
     31 import java.util.ArrayList;
     32 import java.util.List;
     33 
     34 /**
     35  * HeadsetProfile handles Bluetooth HFP and Headset profiles.
     36  */
     37 public class HeadsetProfile implements LocalBluetoothProfile {
     38     private static final String TAG = "HeadsetProfile";
     39     private static boolean V = true;
     40 
     41     private BluetoothHeadset mService;
     42     private boolean mIsProfileReady;
     43 
     44     private final LocalBluetoothAdapter mLocalAdapter;
     45     private final CachedBluetoothDeviceManager mDeviceManager;
     46     private final LocalBluetoothProfileManager mProfileManager;
     47 
     48     static final ParcelUuid[] UUIDS = {
     49         BluetoothUuid.HSP,
     50         BluetoothUuid.Handsfree,
     51     };
     52 
     53     static final String NAME = "HEADSET";
     54 
     55     // Order of this profile in device profiles list
     56     private static final int ORDINAL = 0;
     57 
     58     // These callbacks run on the main thread.
     59     private final class HeadsetServiceListener
     60             implements BluetoothProfile.ServiceListener {
     61 
     62         public void onServiceConnected(int profile, BluetoothProfile proxy) {
     63             if (V) Log.d(TAG,"Bluetooth service connected");
     64             mService = (BluetoothHeadset) proxy;
     65             // We just bound to the service, so refresh the UI for any connected HFP devices.
     66             List<BluetoothDevice> deviceList = mService.getConnectedDevices();
     67             while (!deviceList.isEmpty()) {
     68                 BluetoothDevice nextDevice = deviceList.remove(0);
     69                 CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice);
     70                 // we may add a new device here, but generally this should not happen
     71                 if (device == null) {
     72                     Log.w(TAG, "HeadsetProfile found new device: " + nextDevice);
     73                     device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice);
     74                 }
     75                 device.onProfileStateChanged(HeadsetProfile.this,
     76                         BluetoothProfile.STATE_CONNECTED);
     77                 device.refresh();
     78             }
     79 
     80             mProfileManager.callServiceConnectedListeners();
     81             mIsProfileReady=true;
     82         }
     83 
     84         public void onServiceDisconnected(int profile) {
     85             if (V) Log.d(TAG,"Bluetooth service disconnected");
     86             mProfileManager.callServiceDisconnectedListeners();
     87             mIsProfileReady=false;
     88         }
     89     }
     90 
     91     public boolean isProfileReady() {
     92         return mIsProfileReady;
     93     }
     94 
     95     @Override
     96     public int getProfileId() {
     97         return BluetoothProfile.HEADSET;
     98     }
     99 
    100     HeadsetProfile(Context context, LocalBluetoothAdapter adapter,
    101             CachedBluetoothDeviceManager deviceManager,
    102             LocalBluetoothProfileManager profileManager) {
    103         mLocalAdapter = adapter;
    104         mDeviceManager = deviceManager;
    105         mProfileManager = profileManager;
    106         mLocalAdapter.getProfileProxy(context, new HeadsetServiceListener(),
    107                 BluetoothProfile.HEADSET);
    108     }
    109 
    110     public boolean isConnectable() {
    111         return true;
    112     }
    113 
    114     public boolean isAutoConnectable() {
    115         return true;
    116     }
    117 
    118     public boolean connect(BluetoothDevice device) {
    119         if (mService == null) return false;
    120         List<BluetoothDevice> sinks = mService.getConnectedDevices();
    121         if (sinks != null) {
    122             for (BluetoothDevice sink : sinks) {
    123                 Log.d(TAG,"Not disconnecting device = " + sink);
    124             }
    125         }
    126         return mService.connect(device);
    127     }
    128 
    129     public boolean disconnect(BluetoothDevice device) {
    130         if (mService == null) return false;
    131         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
    132         if (!deviceList.isEmpty()) {
    133             for (BluetoothDevice dev : deviceList) {
    134                 if (dev.equals(device)) {
    135                     if (V) Log.d(TAG,"Downgrade priority as user" +
    136                                         "is disconnecting the headset");
    137                     // Downgrade priority as user is disconnecting the headset.
    138                     if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON) {
    139                         mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    140                     }
    141                     return mService.disconnect(device);
    142                 }
    143             }
    144         }
    145         return false;
    146     }
    147 
    148     public int getConnectionStatus(BluetoothDevice device) {
    149         if (mService == null) return BluetoothProfile.STATE_DISCONNECTED;
    150         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
    151         if (!deviceList.isEmpty()){
    152             for (BluetoothDevice dev : deviceList) {
    153                 if (dev.equals(device)) {
    154                     return mService.getConnectionState(device);
    155                 }
    156             }
    157         }
    158         return BluetoothProfile.STATE_DISCONNECTED;
    159     }
    160 
    161     public boolean setActiveDevice(BluetoothDevice device) {
    162         if (mService == null) return false;
    163         return mService.setActiveDevice(device);
    164     }
    165 
    166     public BluetoothDevice getActiveDevice() {
    167         if (mService == null) return null;
    168         return mService.getActiveDevice();
    169     }
    170 
    171     public boolean isAudioOn() {
    172         if (mService == null) return false;
    173         return mService.isAudioOn();
    174     }
    175 
    176     public int getAudioState(BluetoothDevice device) {
    177         if (mService == null) return BluetoothHeadset.STATE_AUDIO_DISCONNECTED;
    178         return mService.getAudioState(device);
    179     }
    180 
    181     public boolean isPreferred(BluetoothDevice device) {
    182         if (mService == null) return false;
    183         return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
    184     }
    185 
    186     public int getPreferred(BluetoothDevice device) {
    187         if (mService == null) return BluetoothProfile.PRIORITY_OFF;
    188         return mService.getPriority(device);
    189     }
    190 
    191     public void setPreferred(BluetoothDevice device, boolean preferred) {
    192         if (mService == null) return;
    193         if (preferred) {
    194             if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
    195                 mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    196             }
    197         } else {
    198             mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
    199         }
    200     }
    201 
    202     public List<BluetoothDevice> getConnectedDevices() {
    203         if (mService == null) return new ArrayList<BluetoothDevice>(0);
    204         return mService.getDevicesMatchingConnectionStates(
    205               new int[] {BluetoothProfile.STATE_CONNECTED,
    206                          BluetoothProfile.STATE_CONNECTING,
    207                          BluetoothProfile.STATE_DISCONNECTING});
    208     }
    209 
    210     public String toString() {
    211         return NAME;
    212     }
    213 
    214     public int getOrdinal() {
    215         return ORDINAL;
    216     }
    217 
    218     public int getNameResource(BluetoothDevice device) {
    219         return R.string.bluetooth_profile_headset;
    220     }
    221 
    222     public int getSummaryResourceForDevice(BluetoothDevice device) {
    223         int state = getConnectionStatus(device);
    224         switch (state) {
    225             case BluetoothProfile.STATE_DISCONNECTED:
    226                 return R.string.bluetooth_headset_profile_summary_use_for;
    227 
    228             case BluetoothProfile.STATE_CONNECTED:
    229                 return R.string.bluetooth_headset_profile_summary_connected;
    230 
    231             default:
    232                 return Utils.getConnectionStateSummary(state);
    233         }
    234     }
    235 
    236     public int getDrawableResource(BluetoothClass btClass) {
    237         return R.drawable.ic_bt_headset_hfp;
    238     }
    239 
    240     protected void finalize() {
    241         if (V) Log.d(TAG, "finalize()");
    242         if (mService != null) {
    243             try {
    244                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.HEADSET,
    245                                                                        mService);
    246                 mService = null;
    247             }catch (Throwable t) {
    248                 Log.w(TAG, "Error cleaning up HID proxy", t);
    249             }
    250         }
    251     }
    252 }
    253