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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     HeadsetProfile(Context context, LocalBluetoothAdapter adapter,
     96             CachedBluetoothDeviceManager deviceManager,
     97             LocalBluetoothProfileManager profileManager) {
     98         mLocalAdapter = adapter;
     99         mDeviceManager = deviceManager;
    100         mProfileManager = profileManager;
    101         mLocalAdapter.getProfileProxy(context, new HeadsetServiceListener(),
    102                 BluetoothProfile.HEADSET);
    103     }
    104 
    105     public boolean isConnectable() {
    106         return true;
    107     }
    108 
    109     public boolean isAutoConnectable() {
    110         return true;
    111     }
    112 
    113     public boolean connect(BluetoothDevice device) {
    114         if (mService == null) return false;
    115         List<BluetoothDevice> sinks = mService.getConnectedDevices();
    116         if (sinks != null) {
    117             for (BluetoothDevice sink : sinks) {
    118                 Log.d(TAG,"Not disconnecting device = " + sink);
    119             }
    120         }
    121         return mService.connect(device);
    122     }
    123 
    124     public boolean disconnect(BluetoothDevice device) {
    125         if (mService == null) return false;
    126         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
    127         if (!deviceList.isEmpty()) {
    128             for (BluetoothDevice dev : deviceList) {
    129                 if (dev.equals(device)) {
    130                     if (V) Log.d(TAG,"Downgrade priority as user" +
    131                                         "is disconnecting the headset");
    132                     // Downgrade priority as user is disconnecting the headset.
    133                     if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON) {
    134                         mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    135                     }
    136                     return mService.disconnect(device);
    137                 }
    138             }
    139         }
    140         return false;
    141     }
    142 
    143     public int getConnectionStatus(BluetoothDevice device) {
    144         if (mService == null) return BluetoothProfile.STATE_DISCONNECTED;
    145         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
    146         if (!deviceList.isEmpty()){
    147             for (BluetoothDevice dev : deviceList) {
    148                 if (dev.equals(device)) {
    149                     return mService.getConnectionState(device);
    150                 }
    151             }
    152         }
    153         return BluetoothProfile.STATE_DISCONNECTED;
    154     }
    155 
    156     public boolean isPreferred(BluetoothDevice device) {
    157         if (mService == null) return false;
    158         return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
    159     }
    160 
    161     public int getPreferred(BluetoothDevice device) {
    162         if (mService == null) return BluetoothProfile.PRIORITY_OFF;
    163         return mService.getPriority(device);
    164     }
    165 
    166     public void setPreferred(BluetoothDevice device, boolean preferred) {
    167         if (mService == null) return;
    168         if (preferred) {
    169             if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
    170                 mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    171             }
    172         } else {
    173             mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
    174         }
    175     }
    176 
    177     public List<BluetoothDevice> getConnectedDevices() {
    178         if (mService == null) return new ArrayList<BluetoothDevice>(0);
    179         return mService.getDevicesMatchingConnectionStates(
    180               new int[] {BluetoothProfile.STATE_CONNECTED,
    181                          BluetoothProfile.STATE_CONNECTING,
    182                          BluetoothProfile.STATE_DISCONNECTING});
    183     }
    184 
    185     public String toString() {
    186         return NAME;
    187     }
    188 
    189     public int getOrdinal() {
    190         return ORDINAL;
    191     }
    192 
    193     public int getNameResource(BluetoothDevice device) {
    194         return R.string.bluetooth_profile_headset;
    195     }
    196 
    197     public int getSummaryResourceForDevice(BluetoothDevice device) {
    198         int state = getConnectionStatus(device);
    199         switch (state) {
    200             case BluetoothProfile.STATE_DISCONNECTED:
    201                 return R.string.bluetooth_headset_profile_summary_use_for;
    202 
    203             case BluetoothProfile.STATE_CONNECTED:
    204                 return R.string.bluetooth_headset_profile_summary_connected;
    205 
    206             default:
    207                 return Utils.getConnectionStateSummary(state);
    208         }
    209     }
    210 
    211     public int getDrawableResource(BluetoothClass btClass) {
    212         return R.drawable.ic_bt_headset_hfp;
    213     }
    214 
    215     protected void finalize() {
    216         if (V) Log.d(TAG, "finalize()");
    217         if (mService != null) {
    218             try {
    219                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.HEADSET,
    220                                                                        mService);
    221                 mService = null;
    222             }catch (Throwable t) {
    223                 Log.w(TAG, "Error cleaning up HID proxy", t);
    224             }
    225         }
    226     }
    227 }
    228