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