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      1 /*
      2  * Copyright (C) 2011 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.BluetoothPan;
     23 import android.bluetooth.BluetoothProfile;
     24 import android.content.Context;
     25 import android.util.Log;
     26 
     27 import com.android.settingslib.R;
     28 
     29 import java.util.HashMap;
     30 import java.util.List;
     31 
     32 /**
     33  * PanProfile handles Bluetooth PAN profile (NAP and PANU).
     34  */
     35 public final class PanProfile implements LocalBluetoothProfile {
     36     private static final String TAG = "PanProfile";
     37     private static boolean V = true;
     38 
     39     private BluetoothPan mService;
     40     private boolean mIsProfileReady;
     41 
     42     // Tethering direction for each device
     43     private final HashMap<BluetoothDevice, Integer> mDeviceRoleMap =
     44             new HashMap<BluetoothDevice, Integer>();
     45 
     46     static final String NAME = "PAN";
     47 
     48     // Order of this profile in device profiles list
     49     private static final int ORDINAL = 4;
     50 
     51     // These callbacks run on the main thread.
     52     private final class PanServiceListener
     53             implements BluetoothProfile.ServiceListener {
     54 
     55         public void onServiceConnected(int profile, BluetoothProfile proxy) {
     56             if (V) Log.d(TAG,"Bluetooth service connected");
     57             mService = (BluetoothPan) proxy;
     58             mIsProfileReady=true;
     59         }
     60 
     61         public void onServiceDisconnected(int profile) {
     62             if (V) Log.d(TAG,"Bluetooth service disconnected");
     63             mIsProfileReady=false;
     64         }
     65     }
     66 
     67     public boolean isProfileReady() {
     68         return mIsProfileReady;
     69     }
     70 
     71     PanProfile(Context context) {
     72         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
     73         adapter.getProfileProxy(context, new PanServiceListener(),
     74                 BluetoothProfile.PAN);
     75     }
     76 
     77     public boolean isConnectable() {
     78         return true;
     79     }
     80 
     81     public boolean isAutoConnectable() {
     82         return false;
     83     }
     84 
     85     public boolean connect(BluetoothDevice device) {
     86         if (mService == null) return false;
     87         List<BluetoothDevice> sinks = mService.getConnectedDevices();
     88         if (sinks != null) {
     89             for (BluetoothDevice sink : sinks) {
     90                 mService.disconnect(sink);
     91             }
     92         }
     93         return mService.connect(device);
     94     }
     95 
     96     public boolean disconnect(BluetoothDevice device) {
     97         if (mService == null) return false;
     98         return mService.disconnect(device);
     99     }
    100 
    101     public int getConnectionStatus(BluetoothDevice device) {
    102         if (mService == null) {
    103             return BluetoothProfile.STATE_DISCONNECTED;
    104         }
    105         return mService.getConnectionState(device);
    106     }
    107 
    108     public boolean isPreferred(BluetoothDevice device) {
    109         return true;
    110     }
    111 
    112     public int getPreferred(BluetoothDevice device) {
    113         return -1;
    114     }
    115 
    116     public void setPreferred(BluetoothDevice device, boolean preferred) {
    117         // ignore: isPreferred is always true for PAN
    118     }
    119 
    120     public String toString() {
    121         return NAME;
    122     }
    123 
    124     public int getOrdinal() {
    125         return ORDINAL;
    126     }
    127 
    128     public int getNameResource(BluetoothDevice device) {
    129         if (isLocalRoleNap(device)) {
    130             return R.string.bluetooth_profile_pan_nap;
    131         } else {
    132             return R.string.bluetooth_profile_pan;
    133         }
    134     }
    135 
    136     public int getSummaryResourceForDevice(BluetoothDevice device) {
    137         int state = getConnectionStatus(device);
    138         switch (state) {
    139             case BluetoothProfile.STATE_DISCONNECTED:
    140                 return R.string.bluetooth_pan_profile_summary_use_for;
    141 
    142             case BluetoothProfile.STATE_CONNECTED:
    143                 if (isLocalRoleNap(device)) {
    144                     return R.string.bluetooth_pan_nap_profile_summary_connected;
    145                 } else {
    146                     return R.string.bluetooth_pan_user_profile_summary_connected;
    147                 }
    148 
    149             default:
    150                 return Utils.getConnectionStateSummary(state);
    151         }
    152     }
    153 
    154     public int getDrawableResource(BluetoothClass btClass) {
    155         return R.drawable.ic_bt_network_pan;
    156     }
    157 
    158     // Tethering direction determines UI strings.
    159     void setLocalRole(BluetoothDevice device, int role) {
    160         mDeviceRoleMap.put(device, role);
    161     }
    162 
    163     boolean isLocalRoleNap(BluetoothDevice device) {
    164         if (mDeviceRoleMap.containsKey(device)) {
    165             return mDeviceRoleMap.get(device) == BluetoothPan.LOCAL_NAP_ROLE;
    166         } else {
    167             return false;
    168         }
    169     }
    170 
    171     protected void finalize() {
    172         if (V) Log.d(TAG, "finalize()");
    173         if (mService != null) {
    174             try {
    175                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.PAN, mService);
    176                 mService = null;
    177             }catch (Throwable t) {
    178                 Log.w(TAG, "Error cleaning up PAN proxy", t);
    179             }
    180         }
    181     }
    182 }
    183