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
17package com.android.settingslib.bluetooth;
18
19import android.bluetooth.BluetoothAdapter;
20import android.bluetooth.BluetoothClass;
21import android.bluetooth.BluetoothDevice;
22import android.bluetooth.BluetoothHeadset;
23import android.bluetooth.BluetoothProfile;
24import android.bluetooth.BluetoothUuid;
25import android.content.Context;
26import android.os.ParcelUuid;
27import android.util.Log;
28
29import com.android.settingslib.R;
30
31import java.util.ArrayList;
32import java.util.List;
33
34/**
35 * HeadsetProfile handles Bluetooth HFP and Headset profiles.
36 */
37public final 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