/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @hide
 */

package com.android.bluetooth.btservice;

import android.app.AlarmManager;
import android.app.Application;
import android.app.PendingIntent;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothProfile;
import android.bluetooth.BluetoothUuid;
import android.bluetooth.IBluetooth;
import android.bluetooth.IBluetoothCallback;
import android.bluetooth.IBluetoothManager;
import android.bluetooth.IBluetoothManagerCallback;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Binder;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.ParcelFileDescriptor;
import android.os.ParcelUuid;
import android.os.PowerManager;
import android.os.Process;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.SystemClock;
import android.provider.Settings;
import android.util.Log;
import android.util.Pair;
import com.android.bluetooth.a2dp.A2dpService;
import com.android.bluetooth.hid.HidService;
import com.android.bluetooth.hfp.HeadsetService;
import com.android.bluetooth.hdp.HealthService;
import com.android.bluetooth.pan.PanService;
import com.android.bluetooth.R;
import com.android.bluetooth.Utils;
import com.android.bluetooth.btservice.RemoteDevices.DeviceProperties;
import java.io.FileDescriptor;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Set;
import java.util.Map;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.List;
import android.content.pm.PackageManager;
import android.os.ServiceManager;

public class AdapterService extends Service {
    private static final String TAG = "BluetoothAdapterService";
    private static final boolean DBG = false;
    private static final boolean TRACE_REF = true;
    //For Debugging only
    private static int sRefCount=0;

    public static final String ACTION_LOAD_ADAPTER_PROPERTIES =
        "com.android.bluetooth.btservice.action.LOAD_ADAPTER_PROPERTIES";
    public static final String ACTION_SERVICE_STATE_CHANGED =
        "com.android.bluetooth.btservice.action.STATE_CHANGED";
    public static final String EXTRA_ACTION="action";
    public static final int PROFILE_CONN_CONNECTED  = 1;
    public static final int PROFILE_CONN_REJECTED  = 2;

    private static final String ACTION_ALARM_WAKEUP =
        "com.android.bluetooth.btservice.action.ALARM_WAKEUP";

    static final String BLUETOOTH_ADMIN_PERM =
        android.Manifest.permission.BLUETOOTH_ADMIN;
    static final String BLUETOOTH_PERM = android.Manifest.permission.BLUETOOTH;

    private static final int ADAPTER_SERVICE_TYPE=Service.START_STICKY;

    static {
        classInitNative();
    }

    private static AdapterService sAdapterService;
    public static synchronized AdapterService getAdapterService(){
        if (sAdapterService != null && !sAdapterService.mCleaningUp) {
            if (DBG) Log.d(TAG, "getAdapterService(): returning " + sAdapterService);
            return sAdapterService;
        }
        if (DBG)  {
            if (sAdapterService == null) {
                Log.d(TAG, "getAdapterService(): service not available");
            } else if (sAdapterService.mCleaningUp) {
                Log.d(TAG,"getAdapterService(): service is cleaning up");
            }
        }
        return null;
    }

    private static synchronized void setAdapterService(AdapterService instance) {
        if (instance != null && !instance.mCleaningUp) {
            if (DBG) Log.d(TAG, "setAdapterService(): set to: " + sAdapterService);
            sAdapterService = instance;
        } else {
            if (DBG)  {
                if (sAdapterService == null) {
                    Log.d(TAG, "setAdapterService(): service not available");
                } else if (sAdapterService.mCleaningUp) {
                    Log.d(TAG,"setAdapterService(): service is cleaning up");
                }
            }
        }
    }

    private static synchronized void clearAdapterService() {
        sAdapterService = null;
    }

    private AdapterProperties mAdapterProperties;
    private AdapterState mAdapterStateMachine;
    private BondStateMachine mBondStateMachine;
    private JniCallbacks mJniCallbacks;
    private RemoteDevices mRemoteDevices;
    private boolean mProfilesStarted;
    private boolean mNativeAvailable;
    private boolean mCleaningUp;
    private HashMap<String,Integer> mProfileServicesState = new HashMap<String,Integer>();
    private RemoteCallbackList<IBluetoothCallback> mCallbacks;//Only BluetoothManagerService should be registered
    private int mCurrentRequestId;
    private boolean mQuietmode = false;

    private AlarmManager mAlarmManager;
    private PendingIntent mPendingAlarm;
    private PowerManager mPowerManager;
    private PowerManager.WakeLock mWakeLock;
    private String mWakeLockName;

    public AdapterService() {
        super();
        if (TRACE_REF) {
            synchronized (AdapterService.class) {
                sRefCount++;
                Log.d(TAG, "REFCOUNT: CREATED. INSTANCE_COUNT" + sRefCount);
            }
        }
    }

    public void onProfileConnectionStateChanged(BluetoothDevice device, int profileId, int newState, int prevState) {
        Message m = mHandler.obtainMessage(MESSAGE_PROFILE_CONNECTION_STATE_CHANGED);
        m.obj = device;
        m.arg1 = profileId;
        m.arg2 = newState;
        Bundle b = new Bundle(1);
        b.putInt("prevState", prevState);
        m.setData(b);
        mHandler.sendMessage(m);
    }

    public void initProfilePriorities(BluetoothDevice device, ParcelUuid[] mUuids) {
        if(mUuids == null) return;
        Message m = mHandler.obtainMessage(MESSAGE_PROFILE_INIT_PRIORITIES);
        m.obj = device;
        m.arg1 = mUuids.length;
        Bundle b = new Bundle(1);
        for(int i=0; i<mUuids.length; i++) {
            b.putParcelable("uuids" + i, mUuids[i]);
        }
        m.setData(b);
        mHandler.sendMessage(m);
    }

    private void processInitProfilePriorities (BluetoothDevice device, ParcelUuid[] uuids){
        HidService hidService = HidService.getHidService();
        A2dpService a2dpService = A2dpService.getA2dpService();
        HeadsetService headsetService = HeadsetService.getHeadsetService();

        // Set profile priorities only for the profiles discovered on the remote device.
        // This avoids needless auto-connect attempts to profiles non-existent on the remote device
        if ((hidService != null) &&
            (BluetoothUuid.isUuidPresent(uuids, BluetoothUuid.Hid)) &&
            (hidService.getPriority(device) == BluetoothProfile.PRIORITY_UNDEFINED)){
            hidService.setPriority(device,BluetoothProfile.PRIORITY_ON);
        }

        if ((a2dpService != null) &&
            (BluetoothUuid.isUuidPresent(uuids, BluetoothUuid.AudioSink) ||
                    (BluetoothUuid.isUuidPresent(uuids, BluetoothUuid.AdvAudioDist)) &&
            (a2dpService.getPriority(device) == BluetoothProfile.PRIORITY_UNDEFINED))){
            a2dpService.setPriority(device,BluetoothProfile.PRIORITY_ON);
        }

        if ((headsetService != null) &&
            ((BluetoothUuid.isUuidPresent(uuids, BluetoothUuid.HSP) ||
                    BluetoothUuid.isUuidPresent(uuids, BluetoothUuid.Handsfree)) &&
            (headsetService.getPriority(device) == BluetoothProfile.PRIORITY_UNDEFINED))){
            headsetService.setPriority(device,BluetoothProfile.PRIORITY_ON);
        }
    }

    private void processProfileStateChanged(BluetoothDevice device, int profileId, int newState, int prevState) {
        if (((profileId == BluetoothProfile.A2DP) ||(profileId == BluetoothProfile.HEADSET)) &&
             (newState == BluetoothProfile.STATE_CONNECTED)){
            if (DBG) debugLog( "Profile connected. Schedule missing profile connection if any");
            connectOtherProfile(device, PROFILE_CONN_CONNECTED);
            setProfileAutoConnectionPriority(device, profileId);
        }
        IBluetooth.Stub binder = mBinder;
        if (binder != null) {
            try {
                binder.sendConnectionStateChange(device, profileId, newState,prevState);
            } catch (RemoteException re) {
                Log.e(TAG, "",re);
            }
        }
    }

    public void onProfileServiceStateChanged(String serviceName, int state) {
        Message m = mHandler.obtainMessage(MESSAGE_PROFILE_SERVICE_STATE_CHANGED);
        m.obj=serviceName;
        m.arg1 = state;
        mHandler.sendMessage(m);
    }

    private void processProfileServiceStateChanged(String serviceName, int state) {
        boolean doUpdate=false;
        boolean isTurningOn;
        boolean isTurningOff;

        synchronized (mProfileServicesState) {
            Integer prevState = mProfileServicesState.get(serviceName);
            if (prevState != null && prevState != state) {
                mProfileServicesState.put(serviceName,state);
                doUpdate=true;
            }
        }
        if (DBG) Log.d(TAG,"onProfileServiceStateChange: serviceName=" + serviceName + ", state = " + state +", doUpdate = " + doUpdate);

        if (!doUpdate) {
            return;
        }

        synchronized (mAdapterStateMachine) {
            isTurningOff = mAdapterStateMachine.isTurningOff();
            isTurningOn = mAdapterStateMachine.isTurningOn();
        }

        if (isTurningOff) {
            //Process stop or disable pending
            //Check if all services are stopped if so, do cleanup
            //if (DBG) Log.d(TAG,"Checking if all profiles are stopped...");
            synchronized (mProfileServicesState) {
                Iterator<Map.Entry<String,Integer>> i = mProfileServicesState.entrySet().iterator();
                while (i.hasNext()) {
                    Map.Entry<String,Integer> entry = i.next();
                    if (BluetoothAdapter.STATE_OFF != entry.getValue()) {
                        Log.d(TAG, "Profile still running: " + entry.getKey());
                        return;
                    }
                }
            }
            if (DBG) Log.d(TAG, "All profile services stopped...");
            //Send message to state machine
            mProfilesStarted=false;
            mAdapterStateMachine.sendMessage(mAdapterStateMachine.obtainMessage(AdapterState.STOPPED));
        } else if (isTurningOn) {
            //Process start pending
            //Check if all services are started if so, update state
            //if (DBG) Log.d(TAG,"Checking if all profiles are running...");
            synchronized (mProfileServicesState) {
                Iterator<Map.Entry<String,Integer>> i = mProfileServicesState.entrySet().iterator();
                while (i.hasNext()) {
                    Map.Entry<String,Integer> entry = i.next();
                    if (BluetoothAdapter.STATE_ON != entry.getValue()) {
                        Log.d(TAG, "Profile still not running:" + entry.getKey());
                        return;
                    }
                }
            }
            if (DBG) Log.d(TAG, "All profile services started.");
            mProfilesStarted=true;
            //Send message to state machine
            mAdapterStateMachine.sendMessage(mAdapterStateMachine.obtainMessage(AdapterState.STARTED));
        }
    }

    @Override
    public void onCreate() {
        super.onCreate();
        if (DBG) debugLog("onCreate");
        mBinder = new AdapterServiceBinder(this);
        mAdapterProperties = new AdapterProperties(this);
        mAdapterStateMachine =  AdapterState.make(this, mAdapterProperties);
        mJniCallbacks =  new JniCallbacks(mAdapterStateMachine, mAdapterProperties);
        initNative();
        mNativeAvailable=true;
        mCallbacks = new RemoteCallbackList<IBluetoothCallback>();
        //Load the name and address
        getAdapterPropertyNative(AbstractionLayer.BT_PROPERTY_BDADDR);
        getAdapterPropertyNative(AbstractionLayer.BT_PROPERTY_BDNAME);
        mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);

        registerReceiver(mAlarmBroadcastReceiver, new IntentFilter(ACTION_ALARM_WAKEUP));
    }

    @Override
    public IBinder onBind(Intent intent) {
        if (DBG) debugLog("onBind");
        return mBinder;
    }
    public boolean onUnbind(Intent intent) {
        if (DBG) debugLog("onUnbind, calling cleanup");
        cleanup();
        return super.onUnbind(intent);
    }

    public void onDestroy() {
        debugLog("****onDestroy()********");
    }

    void processStart() {
        if (DBG) debugLog("processStart()");
        Class[] supportedProfileServices = Config.getSupportedProfiles();
        //Initialize data objects
        for (int i=0; i < supportedProfileServices.length;i++) {
            mProfileServicesState.put(supportedProfileServices[i].getName(),BluetoothAdapter.STATE_OFF);
        }
        mRemoteDevices = new RemoteDevices(this);
        mAdapterProperties.init(mRemoteDevices);

        if (DBG) {debugLog("processStart(): Make Bond State Machine");}
        mBondStateMachine = BondStateMachine.make(this, mAdapterProperties, mRemoteDevices);

        mJniCallbacks.init(mBondStateMachine,mRemoteDevices);

        //FIXME: Set static instance here???
        setAdapterService(this);

        //Start profile services
        if (!mProfilesStarted && supportedProfileServices.length >0) {
            //Startup all profile services
            setProfileServiceState(supportedProfileServices,BluetoothAdapter.STATE_ON);
        }else {
            if (DBG) {debugLog("processStart(): Profile Services alreay started");}
            mAdapterStateMachine.sendMessage(mAdapterStateMachine.obtainMessage(AdapterState.STARTED));
        }
    }

    void startBluetoothDisable() {
        mAdapterStateMachine.sendMessage(mAdapterStateMachine.obtainMessage(AdapterState.BEGIN_DISABLE));
    }

    boolean stopProfileServices() {
        Class[] supportedProfileServices = Config.getSupportedProfiles();
        if (mProfilesStarted && supportedProfileServices.length>0) {
            setProfileServiceState(supportedProfileServices,BluetoothAdapter.STATE_OFF);
            return true;
        } else {
            if (DBG) {debugLog("stopProfileServices(): No profiles services to stop or already stopped.");}
            return false;
        }
    }

     void updateAdapterState(int prevState, int newState){
        if (mCallbacks !=null) {
            int n=mCallbacks.beginBroadcast();
            Log.d(TAG,"Broadcasting updateAdapterState() to " + n + " receivers.");
            for (int i=0; i <n;i++) {
                try {
                    mCallbacks.getBroadcastItem(i).onBluetoothStateChange(prevState,newState);
                }  catch (RemoteException e) {
                    Log.e(TAG, "Unable to call onBluetoothStateChange() on callback #" + i, e);
                }
            }
            mCallbacks.finishBroadcast();
        }
    }

    void cleanup () {
        if (DBG)debugLog("cleanup()");
        if (mCleaningUp) {
            Log.w(TAG,"*************service already starting to cleanup... Ignoring cleanup request.........");
            return;
        }

        mCleaningUp = true;

        unregisterReceiver(mAlarmBroadcastReceiver);

        if (mPendingAlarm != null) {
            mAlarmManager.cancel(mPendingAlarm);
            mPendingAlarm = null;
        }

        if (mWakeLock != null) {
            mWakeLock.release();
            mWakeLock = null;
        }

        if (mAdapterStateMachine != null) {
            mAdapterStateMachine.doQuit();
            mAdapterStateMachine.cleanup();
        }

        if (mBondStateMachine != null) {
            mBondStateMachine.doQuit();
            mBondStateMachine.cleanup();
        }

        if (mRemoteDevices != null) {
            mRemoteDevices.cleanup();
        }

        if (mNativeAvailable) {
            Log.d(TAG, "Cleaning up adapter native....");
            cleanupNative();
            Log.d(TAG, "Done cleaning up adapter native....");
            mNativeAvailable=false;
        }

        if (mAdapterProperties != null) {
            mAdapterProperties.cleanup();
        }

        if (mJniCallbacks != null) {
            mJniCallbacks.cleanup();
        }

        if (mProfileServicesState != null) {
            mProfileServicesState.clear();
        }

        clearAdapterService();

        if (mBinder != null) {
            mBinder.cleanup();
            mBinder = null;  //Do not remove. Otherwise Binder leak!
        }

        if (mCallbacks !=null) {
            mCallbacks.kill();
        }

        if (DBG)debugLog("cleanup() done");

        if (DBG) debugLog("bluetooth process exit normally after clean up...");
        System.exit(0);
    }

    private static final int MESSAGE_PROFILE_SERVICE_STATE_CHANGED =1;
    private static final int MESSAGE_PROFILE_CONNECTION_STATE_CHANGED=20;
    private static final int MESSAGE_CONNECT_OTHER_PROFILES = 30;
    private static final int MESSAGE_PROFILE_INIT_PRIORITIES=40;
    private static final int CONNECT_OTHER_PROFILES_TIMEOUT= 6000;

    private final Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            if (DBG) debugLog("Message: " + msg.what);

            switch (msg.what) {
                case MESSAGE_PROFILE_SERVICE_STATE_CHANGED: {
                    if(DBG) debugLog("MESSAGE_PROFILE_SERVICE_STATE_CHANGED");
                    processProfileServiceStateChanged((String) msg.obj, msg.arg1);
                }
                    break;
                case MESSAGE_PROFILE_CONNECTION_STATE_CHANGED: {
                    if (DBG) debugLog( "MESSAGE_PROFILE_CONNECTION_STATE_CHANGED");
                    processProfileStateChanged((BluetoothDevice) msg.obj, msg.arg1,msg.arg2, msg.getData().getInt("prevState",BluetoothAdapter.ERROR));
                }
                    break;
                case MESSAGE_PROFILE_INIT_PRIORITIES: {
                    if (DBG) debugLog( "MESSAGE_PROFILE_INIT_PRIORITIES");
                    ParcelUuid[] mUuids = new ParcelUuid[msg.arg1];
                    for(int i=0; i<mUuids.length; i++) {
                        mUuids[i] = msg.getData().getParcelable("uuids" + i);
                    }
                    processInitProfilePriorities((BluetoothDevice) msg.obj,
                            mUuids);
                }
                    break;
                case MESSAGE_CONNECT_OTHER_PROFILES: {
                    if (DBG) debugLog( "MESSAGE_CONNECT_OTHER_PROFILES");
                    processConnectOtherProfiles((BluetoothDevice) msg.obj,msg.arg1);
                }
                    break;
            }
        }
    };

    @SuppressWarnings("rawtypes")
    private void setProfileServiceState(Class[] services, int state) {
        if (state != BluetoothAdapter.STATE_ON && state != BluetoothAdapter.STATE_OFF) {
            Log.w(TAG,"setProfileServiceState(): invalid state...Leaving...");
            return;
        }

        int expectedCurrentState= BluetoothAdapter.STATE_OFF;
        int pendingState = BluetoothAdapter.STATE_TURNING_ON;
        if (state == BluetoothAdapter.STATE_OFF) {
            expectedCurrentState= BluetoothAdapter.STATE_ON;
            pendingState = BluetoothAdapter.STATE_TURNING_OFF;
        }

        for (int i=0; i <services.length;i++) {
            String serviceName = services[i].getName();
            Integer serviceState = mProfileServicesState.get(serviceName);
            if(serviceState != null && serviceState != expectedCurrentState) {
                Log.w(TAG, "Unable to " + (state == BluetoothAdapter.STATE_OFF? "start" : "stop" ) +" service " +
                        serviceName+". Invalid state: " + serviceState);
                continue;
            }

            if (DBG) {
                Log.w(TAG, (state == BluetoothAdapter.STATE_OFF? "Stopping" : "Starting" ) +" service " +
                        serviceName);
            }

            mProfileServicesState.put(serviceName,pendingState);
            Intent intent = new Intent(this,services[i]);
            intent.putExtra(EXTRA_ACTION,ACTION_SERVICE_STATE_CHANGED);
            intent.putExtra(BluetoothAdapter.EXTRA_STATE,state);
            startService(intent);
        }
    }

    private boolean isAvailable() {
        return !mCleaningUp;
    }

    /**
     * Handlers for incoming service calls
     */
    private AdapterServiceBinder mBinder;

    /**
     * The Binder implementation must be declared to be a static class, with
     * the AdapterService instance passed in the constructor. Furthermore,
     * when the AdapterService shuts down, the reference to the AdapterService
     * must be explicitly removed.
     *
     * Otherwise, a memory leak can occur from repeated starting/stopping the
     * service...Please refer to android.os.Binder for further details on
     * why an inner instance class should be avoided.
     *
     */
    private static class AdapterServiceBinder extends IBluetooth.Stub {
        private AdapterService mService;

        public AdapterServiceBinder(AdapterService svc) {
            mService = svc;
        }
        public boolean cleanup() {
            mService = null;
            return true;
        }

        public AdapterService getService() {
            if (mService  != null && mService.isAvailable()) {
                return mService;
            }
            return null;
        }
        public boolean isEnabled() {
            // don't check caller, may be called from system UI
            AdapterService service = getService();
            if (service == null) return false;
            return service.isEnabled();
        }

        public int getState() {
            // don't check caller, may be called from system UI
            AdapterService service = getService();
            if (service == null) return  BluetoothAdapter.STATE_OFF;
            return service.getState();
        }

        public boolean enable() {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"enable(): not allowed for non-active user and non system user");
                return false;
	    }

            AdapterService service = getService();
            if (service == null) return false;
            return service.enable();
        }

        public boolean enableNoAutoConnect() {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"enableNoAuto(): not allowed for non-active user and non system user");
                return false;
	    }

            AdapterService service = getService();
            if (service == null) return false;
            return service.enableNoAutoConnect();
        }

        public boolean disable() {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"disable(): not allowed for non-active user and non system user");
                return false;
	    }

            AdapterService service = getService();
            if (service == null) return false;
            return service.disable();
        }

        public String getAddress() {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"getAddress(): not allowed for non-active user and non system user");
                return null;
	    }

            AdapterService service = getService();
            if (service == null) return null;
            return service.getAddress();
        }

        public ParcelUuid[] getUuids() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getUuids(): not allowed for non-active user");
                return new ParcelUuid[0];
            }

            AdapterService service = getService();
            if (service == null) return new ParcelUuid[0];
            return service.getUuids();
        }

        public String getName() {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"getName(): not allowed for non-active user and non system user");
                return null;
	    }

            AdapterService service = getService();
            if (service == null) return null;
            return service.getName();
        }

        public boolean setName(String name) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setName(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setName(name);
        }

        public int getScanMode() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getScanMode(): not allowed for non-active user");
                return BluetoothAdapter.SCAN_MODE_NONE;
            }

            AdapterService service = getService();
            if (service == null) return BluetoothAdapter.SCAN_MODE_NONE;
            return service.getScanMode();
        }

        public boolean setScanMode(int mode, int duration) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setScanMode(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setScanMode(mode,duration);
        }

        public int getDiscoverableTimeout() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getDiscoverableTimeout(): not allowed for non-active user");
                return 0;
            }

            AdapterService service = getService();
            if (service == null) return 0;
            return service.getDiscoverableTimeout();
        }

        public boolean setDiscoverableTimeout(int timeout) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setDiscoverableTimeout(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setDiscoverableTimeout(timeout);
        }

        public boolean startDiscovery() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"startDiscovery(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.startDiscovery();
        }

        public boolean cancelDiscovery() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"cancelDiscovery(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.cancelDiscovery();
        }
        public boolean isDiscovering() {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"isDiscovering(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.isDiscovering();
        }

        public BluetoothDevice[] getBondedDevices() {
            // don't check caller, may be called from system UI
            AdapterService service = getService();
            if (service == null) return new BluetoothDevice[0];
            return service.getBondedDevices();
        }

        public int getAdapterConnectionState() {
            // don't check caller, may be called from system UI
            AdapterService service = getService();
            if (service == null) return BluetoothAdapter.STATE_DISCONNECTED;
            return service.getAdapterConnectionState();
        }

        public int getProfileConnectionState(int profile) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getProfileConnectionState: not allowed for non-active user");
                return BluetoothProfile.STATE_DISCONNECTED;
            }

            AdapterService service = getService();
            if (service == null) return BluetoothProfile.STATE_DISCONNECTED;
            return service.getProfileConnectionState(profile);
        }

        public boolean createBond(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"createBond(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.createBond(device);
        }

        public boolean cancelBondProcess(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"cancelBondProcess(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.cancelBondProcess(device);
        }

        public boolean removeBond(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"removeBond(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.removeBond(device);
        }

        public int getBondState(BluetoothDevice device) {
            // don't check caller, may be called from system UI
            AdapterService service = getService();
            if (service == null) return BluetoothDevice.BOND_NONE;
            return service.getBondState(device);
        }

        public boolean isConnected(BluetoothDevice device) {
            AdapterService service = getService();
            if (service == null) {
                return false;
            }
            return service.isConnected(device);
        }

        public String getRemoteName(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getRemoteName(): not allowed for non-active user");
                return null;
            }

            AdapterService service = getService();
            if (service == null) return null;
            return service.getRemoteName(device);
        }

        public int getRemoteType(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getRemoteType(): not allowed for non-active user");
                return BluetoothDevice.DEVICE_TYPE_UNKNOWN;
            }

            AdapterService service = getService();
            if (service == null) return BluetoothDevice.DEVICE_TYPE_UNKNOWN;
            return service.getRemoteType(device);
        }

        public String getRemoteAlias(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getRemoteAlias(): not allowed for non-active user");
                return null;
            }

            AdapterService service = getService();
            if (service == null) return null;
            return service.getRemoteAlias(device);
        }

        public boolean setRemoteAlias(BluetoothDevice device, String name) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setRemoteAlias(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setRemoteAlias(device, name);
        }

        public int getRemoteClass(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getRemoteClass(): not allowed for non-active user");
                return 0;
            }

            AdapterService service = getService();
            if (service == null) return 0;
            return service.getRemoteClass(device);
        }

        public ParcelUuid[] getRemoteUuids(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"getRemoteUuids(): not allowed for non-active user");
                return new ParcelUuid[0];
            }

            AdapterService service = getService();
            if (service == null) return new ParcelUuid[0];
            return service.getRemoteUuids(device);
        }

        public boolean fetchRemoteUuids(BluetoothDevice device) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"fetchRemoteUuids(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.fetchRemoteUuids(device);
        }

        public boolean setPin(BluetoothDevice device, boolean accept, int len, byte[] pinCode) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setPin(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setPin(device, accept, len, pinCode);
        }

        public boolean setPasskey(BluetoothDevice device, boolean accept, int len, byte[] passkey) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setPasskey(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setPasskey(device, accept, len, passkey);
        }

        public boolean setPairingConfirmation(BluetoothDevice device, boolean accept) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"setPairingConfirmation(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.setPairingConfirmation(device, accept);
        }

        public void sendConnectionStateChange(BluetoothDevice
                device, int profile, int state, int prevState) {
            AdapterService service = getService();
            if (service == null) return;
            service.sendConnectionStateChange(device, profile, state, prevState);
        }

        public ParcelFileDescriptor connectSocket(BluetoothDevice device, int type,
                                                  ParcelUuid uuid, int port, int flag) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"connectSocket(): not allowed for non-active user");
                return null;
            }

            AdapterService service = getService();
            if (service == null) return null;
            return service.connectSocket(device, type, uuid, port, flag);
        }

        public ParcelFileDescriptor createSocketChannel(int type, String serviceName,
                                                        ParcelUuid uuid, int port, int flag) {
            if (!Utils.checkCaller()) {
                Log.w(TAG,"createSocketChannel(): not allowed for non-active user");
                return null;
            }

            AdapterService service = getService();
            if (service == null) return null;
            return service.createSocketChannel(type, serviceName, uuid, port, flag);
        }

        public boolean configHciSnoopLog(boolean enable) {
            if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                (!Utils.checkCaller())) {
                Log.w(TAG,"configHciSnoopLog(): not allowed for non-active user");
                return false;
            }

            AdapterService service = getService();
            if (service == null) return false;
            return service.configHciSnoopLog(enable);
        }

        public void registerCallback(IBluetoothCallback cb) {
            AdapterService service = getService();
            if (service == null) return ;
            service.registerCallback(cb);
         }

         public void unregisterCallback(IBluetoothCallback cb) {
             AdapterService service = getService();
             if (service == null) return ;
             service.unregisterCallback(cb);
         }
    };


    //----API Methods--------
     boolean isEnabled() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getState() == BluetoothAdapter.STATE_ON;
    }

     int getState() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        if (mAdapterProperties == null){
            return  BluetoothAdapter.STATE_OFF;
        }
        else {
            if (DBG) debugLog("getState(): mAdapterProperties: " + mAdapterProperties);
            return mAdapterProperties.getState();
        }
    }

     boolean enable() {
        return enable (false);
    }

      public boolean enableNoAutoConnect() {
         return enable (true);
     }

     public synchronized boolean enable(boolean quietMode) {
         enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                        "Need BLUETOOTH ADMIN permission");
         if (DBG)debugLog("Enable called with quiet mode status =  " + mQuietmode);
         mQuietmode  = quietMode;
         Message m =
                 mAdapterStateMachine.obtainMessage(AdapterState.USER_TURN_ON);
         mAdapterStateMachine.sendMessage(m);
         return true;
     }

     boolean disable() {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");

        if (DBG) debugLog("disable() called...");
        Message m =
                mAdapterStateMachine.obtainMessage(AdapterState.USER_TURN_OFF);
        mAdapterStateMachine.sendMessage(m);
        return true;
    }

     String getAddress() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        String addrString = null;
        byte[] address = mAdapterProperties.getAddress();
        return Utils.getAddressStringFromByte(address);
    }

     ParcelUuid[] getUuids() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getUuids();
    }

     String getName() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM,
                                       "Need BLUETOOTH permission");

        try {
            return mAdapterProperties.getName();
        } catch (Throwable t) {
            Log.d(TAG, "Unexpected exception while calling getName()",t);
        }
        return null;
    }

     boolean setName(String name) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");

        return mAdapterProperties.setName(name);
    }

     int getScanMode() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getScanMode();
    }

     boolean setScanMode(int mode, int duration) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        setDiscoverableTimeout(duration);

        int newMode = convertScanModeToHal(mode);
        return mAdapterProperties.setScanMode(newMode);
    }

     int getDiscoverableTimeout() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getDiscoverableTimeout();
    }

     boolean setDiscoverableTimeout(int timeout) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.setDiscoverableTimeout(timeout);
    }

     boolean startDiscovery() {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");

        return startDiscoveryNative();
    }

     boolean cancelDiscovery() {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");

        return cancelDiscoveryNative();
    }

     boolean isDiscovering() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.isDiscovering();
    }

     BluetoothDevice[] getBondedDevices() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        debugLog("Get Bonded Devices being called");
        return mAdapterProperties.getBondedDevices();
    }

     int getAdapterConnectionState() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getConnectionState();
    }

     int getProfileConnectionState(int profile) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        return mAdapterProperties.getProfileConnectionState(profile);
    }

     boolean createBond(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
            "Need BLUETOOTH ADMIN permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp != null && deviceProp.getBondState() != BluetoothDevice.BOND_NONE) {
            return false;
        }

        // Pairing is unreliable while scanning, so cancel discovery
        // Note, remove this when native stack improves
        cancelDiscoveryNative();

        Message msg = mBondStateMachine.obtainMessage(BondStateMachine.CREATE_BOND);
        msg.obj = device;
        mBondStateMachine.sendMessage(msg);
        return true;
    }

      public boolean isQuietModeEnabled() {
          if (DBG) debugLog("Quiet mode Enabled = " + mQuietmode);
          return mQuietmode;
     }

     public void autoConnect(){
        if (getState() != BluetoothAdapter.STATE_ON){
             errorLog("BT is not ON. Exiting autoConnect");
             return;
         }
         if (isQuietModeEnabled() == false) {
            if (DBG) debugLog( "Initiate auto connection on BT on...");
             autoConnectHeadset();
             autoConnectA2dp();
         }
         else {
             if (DBG) debugLog( "BT is in Quiet mode. Not initiating  auto connections");
         }
    }

     private void autoConnectHeadset(){
        HeadsetService  hsService = HeadsetService.getHeadsetService();

        BluetoothDevice bondedDevices[] = getBondedDevices();
        if ((bondedDevices == null) ||(hsService == null)) {
            return;
        }
        for (BluetoothDevice device : bondedDevices) {
            if (hsService.getPriority(device) == BluetoothProfile.PRIORITY_AUTO_CONNECT ){
                Log.d(TAG,"Auto Connecting Headset Profile with device " + device.toString());
                hsService.connect(device);
                }
        }
    }

     private void autoConnectA2dp(){
        A2dpService a2dpSservice = A2dpService.getA2dpService();
        BluetoothDevice bondedDevices[] = getBondedDevices();
        if ((bondedDevices == null) ||(a2dpSservice == null)) {
            return;
        }
        for (BluetoothDevice device : bondedDevices) {
            if (a2dpSservice.getPriority(device) == BluetoothProfile.PRIORITY_AUTO_CONNECT ){
                Log.d(TAG,"Auto Connecting A2DP Profile with device " + device.toString());
                a2dpSservice.connect(device);
                }
        }
    }

     public void connectOtherProfile(BluetoothDevice device, int firstProfileStatus){
        if ((mHandler.hasMessages(MESSAGE_CONNECT_OTHER_PROFILES) == false) &&
            (isQuietModeEnabled()== false)){
            Message m = mHandler.obtainMessage(MESSAGE_CONNECT_OTHER_PROFILES);
            m.obj = device;
            m.arg1 = (int)firstProfileStatus;
            mHandler.sendMessageDelayed(m,CONNECT_OTHER_PROFILES_TIMEOUT);
        }
    }

     private void processConnectOtherProfiles (BluetoothDevice device, int firstProfileStatus){
        if (getState()!= BluetoothAdapter.STATE_ON){
            return;
        }
        HeadsetService  hsService = HeadsetService.getHeadsetService();
        A2dpService a2dpService = A2dpService.getA2dpService();

        // if any of the profile service is  null, second profile connection not required
        if ((hsService == null) ||(a2dpService == null )){
            return;
        }
        List<BluetoothDevice> a2dpConnDevList= a2dpService.getConnectedDevices();
        List<BluetoothDevice> hfConnDevList= hsService.getConnectedDevices();
        // Check if the device is in disconnected state and if so return
        // We ned to connect other profile only if one of the profile is still in connected state
        // This is required to avoide a race condition in which profiles would
        // automaticlly connect if the disconnection is initiated within 6 seconds of connection
        //First profile connection being rejected is an exception
        if((hfConnDevList.isEmpty() && a2dpConnDevList.isEmpty())&&
            (PROFILE_CONN_CONNECTED  == firstProfileStatus)){
            return;
        }
        if((hfConnDevList.isEmpty()) &&
            (hsService.getPriority(device) >= BluetoothProfile.PRIORITY_ON)){
            hsService.connect(device);
        }
        else if((a2dpConnDevList.isEmpty()) &&
            (a2dpService.getPriority(device) >= BluetoothProfile.PRIORITY_ON)){
            a2dpService.connect(device);
        }
    }

     private void adjustOtherHeadsetPriorities(HeadsetService  hsService,
                                                    List<BluetoothDevice> connectedDeviceList) {
        for (BluetoothDevice device : getBondedDevices()) {
           if (hsService.getPriority(device) >= BluetoothProfile.PRIORITY_AUTO_CONNECT &&
               !connectedDeviceList.contains(device)) {
               hsService.setPriority(device, BluetoothProfile.PRIORITY_ON);
           }
        }
     }

     private void adjustOtherSinkPriorities(A2dpService a2dpService,
                                                BluetoothDevice connectedDevice) {
         for (BluetoothDevice device : getBondedDevices()) {
             if (a2dpService.getPriority(device) >= BluetoothProfile.PRIORITY_AUTO_CONNECT &&
                 !device.equals(connectedDevice)) {
                 a2dpService.setPriority(device, BluetoothProfile.PRIORITY_ON);
             }
         }
     }

     void setProfileAutoConnectionPriority (BluetoothDevice device, int profileId){
         if (profileId == BluetoothProfile.HEADSET) {
             HeadsetService  hsService = HeadsetService.getHeadsetService();
             List<BluetoothDevice> deviceList = hsService.getConnectedDevices();
             if ((hsService != null) &&
                (BluetoothProfile.PRIORITY_AUTO_CONNECT != hsService.getPriority(device))){
                 adjustOtherHeadsetPriorities(hsService, deviceList);
                 hsService.setPriority(device,BluetoothProfile.PRIORITY_AUTO_CONNECT);
             }
         }
         else if (profileId ==  BluetoothProfile.A2DP) {
             A2dpService a2dpService = A2dpService.getA2dpService();
             if ((a2dpService != null) &&
                (BluetoothProfile.PRIORITY_AUTO_CONNECT != a2dpService.getPriority(device))){
                 adjustOtherSinkPriorities(a2dpService, device);
                 a2dpService.setPriority(device,BluetoothProfile.PRIORITY_AUTO_CONNECT);
             }
         }
    }

     boolean cancelBondProcess(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM, "Need BLUETOOTH ADMIN permission");
        byte[] addr = Utils.getBytesFromAddress(device.getAddress());
        return cancelBondNative(addr);
    }

     boolean removeBond(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM, "Need BLUETOOTH ADMIN permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null || deviceProp.getBondState() != BluetoothDevice.BOND_BONDED) {
            return false;
        }
        Message msg = mBondStateMachine.obtainMessage(BondStateMachine.REMOVE_BOND);
        msg.obj = device;
        mBondStateMachine.sendMessage(msg);
        return true;
    }

     int getBondState(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) {
            return BluetoothDevice.BOND_NONE;
        }
        return deviceProp.getBondState();
    }

    boolean isConnected(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");

        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return false;
        return deviceProp.getOpenAclConnectionCount() > 0;
    }

     String getRemoteName(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return null;
        return deviceProp.getName();
    }

     int getRemoteType(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return BluetoothDevice.DEVICE_TYPE_UNKNOWN;
        return deviceProp.getDeviceType();
    }

     String getRemoteAlias(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return null;
        return deviceProp.getAlias();
    }

     boolean setRemoteAlias(BluetoothDevice device, String name) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return false;
        deviceProp.setAlias(name);
        return true;
    }

     int getRemoteClass(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return 0;

        return deviceProp.getBluetoothClass();
    }

     ParcelUuid[] getRemoteUuids(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null) return null;
        return deviceProp.getUuids();
    }

     boolean fetchRemoteUuids(BluetoothDevice device) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        mRemoteDevices.fetchUuids(device);
        return true;
    }

     boolean setPin(BluetoothDevice device, boolean accept, int len, byte[] pinCode) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null || deviceProp.getBondState() != BluetoothDevice.BOND_BONDING) {
            return false;
        }

        byte[] addr = Utils.getBytesFromAddress(device.getAddress());
        return pinReplyNative(addr, accept, len, pinCode);
    }

     boolean setPasskey(BluetoothDevice device, boolean accept, int len, byte[] passkey) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null || deviceProp.getBondState() != BluetoothDevice.BOND_BONDING) {
            return false;
        }

        byte[] addr = Utils.getBytesFromAddress(device.getAddress());
        return sspReplyNative(addr, AbstractionLayer.BT_SSP_VARIANT_PASSKEY_ENTRY, accept,
                Utils.byteArrayToInt(passkey));
    }

     boolean setPairingConfirmation(BluetoothDevice device, boolean accept) {
        enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                       "Need BLUETOOTH ADMIN permission");
        DeviceProperties deviceProp = mRemoteDevices.getDeviceProperties(device);
        if (deviceProp == null || deviceProp.getBondState() != BluetoothDevice.BOND_BONDING) {
            return false;
        }

        byte[] addr = Utils.getBytesFromAddress(device.getAddress());
        return sspReplyNative(addr, AbstractionLayer.BT_SSP_VARIANT_PASSKEY_CONFIRMATION,
                accept, 0);
    }

     void sendConnectionStateChange(BluetoothDevice
            device, int profile, int state, int prevState) {
        // TODO(BT) permission check?
        // Since this is a binder call check if Bluetooth is on still
        if (getState() == BluetoothAdapter.STATE_OFF) return;

        mAdapterProperties.sendConnectionStateChange(device, profile, state, prevState);

    }

     ParcelFileDescriptor connectSocket(BluetoothDevice device, int type,
                                              ParcelUuid uuid, int port, int flag) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        int fd = connectSocketNative(Utils.getBytesFromAddress(device.getAddress()),
                   type, Utils.uuidToByteArray(uuid), port, flag);
        if (fd < 0) {
            errorLog("Failed to connect socket");
            return null;
        }
        return ParcelFileDescriptor.adoptFd(fd);
    }

     ParcelFileDescriptor createSocketChannel(int type, String serviceName,
                                                    ParcelUuid uuid, int port, int flag) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        int fd =  createSocketChannelNative(type, serviceName,
                                 Utils.uuidToByteArray(uuid), port, flag);
        if (fd < 0) {
            errorLog("Failed to create socket channel");
            return null;
        }
        return ParcelFileDescriptor.adoptFd(fd);
    }

    boolean configHciSnoopLog(boolean enable) {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        return configHciSnoopLogNative(enable);
    }

     void registerCallback(IBluetoothCallback cb) {
         mCallbacks.register(cb);
      }

      void unregisterCallback(IBluetoothCallback cb) {
         mCallbacks.unregister(cb);
      }

    public int getNumOfAdvertisementInstancesSupported() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        return mAdapterProperties.getNumOfAdvertisementInstancesSupported();
    }

    public boolean isRpaOffloadSupported() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        return mAdapterProperties.isRpaOffloadSupported();
    }

    public int getNumOfOffloadedIrkSupported() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        return mAdapterProperties.getNumOfOffloadedIrkSupported();
    }

    public int getNumOfOffloadedScanFilterSupported() {
        enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
        return mAdapterProperties.getNumOfOffloadedScanFilterSupported();
    }

      public int getOffloadedScanResultStorage() {
          enforceCallingOrSelfPermission(BLUETOOTH_PERM, "Need BLUETOOTH permission");
          return mAdapterProperties.getOffloadedScanResultStorage();
      }

    private static int convertScanModeToHal(int mode) {
        switch (mode) {
            case BluetoothAdapter.SCAN_MODE_NONE:
                return AbstractionLayer.BT_SCAN_MODE_NONE;
            case BluetoothAdapter.SCAN_MODE_CONNECTABLE:
                return AbstractionLayer.BT_SCAN_MODE_CONNECTABLE;
            case BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE:
                return AbstractionLayer.BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE;
        }
       // errorLog("Incorrect scan mode in convertScanModeToHal");
        return -1;
    }

    static int convertScanModeFromHal(int mode) {
        switch (mode) {
            case AbstractionLayer.BT_SCAN_MODE_NONE:
                return BluetoothAdapter.SCAN_MODE_NONE;
            case AbstractionLayer.BT_SCAN_MODE_CONNECTABLE:
                return BluetoothAdapter.SCAN_MODE_CONNECTABLE;
            case AbstractionLayer.BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE:
                return BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE;
        }
        //errorLog("Incorrect scan mode in convertScanModeFromHal");
        return -1;
    }

    // This function is called from JNI. It allows native code to set a single wake
    // alarm. If an alarm is already pending and a new request comes in, the alarm
    // will be rescheduled (i.e. the previously set alarm will be cancelled).
    private boolean setWakeAlarm(long delayMillis, boolean shouldWake) {
        synchronized (this) {
            if (mPendingAlarm != null) {
                mAlarmManager.cancel(mPendingAlarm);
            }

            long wakeupTime = SystemClock.elapsedRealtime() + delayMillis;
            int type = shouldWake
                ? AlarmManager.ELAPSED_REALTIME_WAKEUP
                : AlarmManager.ELAPSED_REALTIME;

            Intent intent = new Intent(ACTION_ALARM_WAKEUP);
            mPendingAlarm = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
            mAlarmManager.setExact(type, wakeupTime, mPendingAlarm);
            return true;
        }
    }

    // This function is called from JNI. It allows native code to acquire a single wake lock.
    // If the wake lock is already held, this function returns success. Although this function
    // only supports acquiring a single wake lock at a time right now, it will eventually be
    // extended to allow acquiring an arbitrary number of wake locks. The current interface
    // takes |lockName| as a parameter in anticipation of that implementation.
    private boolean acquireWakeLock(String lockName) {
        if (mWakeLock != null) {
            if (!lockName.equals(mWakeLockName)) {
                errorLog("Multiple wake lock acquisition attempted; aborting: " + lockName);
                return false;
            }

            // We're already holding the desired wake lock so return success.
            if (mWakeLock.isHeld()) {
                return true;
            }
        }

        mWakeLockName = lockName;
        mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);
        mWakeLock.acquire();
        return true;
    }

    // This function is called from JNI. It allows native code to release a wake lock acquired
    // by |acquireWakeLock|. If the wake lock is not held, this function returns failure. See
    // the comment for |acquireWakeLock| for an explanation of the interface.
    private boolean releaseWakeLock(String lockName) {
        if (mWakeLock == null) {
            errorLog("Repeated wake lock release; aborting release: " + lockName);
            return false;
        }

        mWakeLock.release();
        mWakeLock = null;
        mWakeLockName = null;
        return true;
    }

    private void debugLog(String msg) {
        Log.d(TAG +"(" +hashCode()+")", msg);
    }

    private void errorLog(String msg) {
        Log.e(TAG +"(" +hashCode()+")", msg);
    }

    private final BroadcastReceiver mAlarmBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            synchronized (AdapterService.this) {
                mPendingAlarm = null;
                alarmFiredNative();
            }
        }
    };

    private native static void classInitNative();
    private native boolean initNative();
    private native void cleanupNative();
    /*package*/ native boolean enableNative();
    /*package*/ native boolean disableNative();
    /*package*/ native boolean setAdapterPropertyNative(int type, byte[] val);
    /*package*/ native boolean getAdapterPropertiesNative();
    /*package*/ native boolean getAdapterPropertyNative(int type);
    /*package*/ native boolean setAdapterPropertyNative(int type);
    /*package*/ native boolean
        setDevicePropertyNative(byte[] address, int type, byte[] val);
    /*package*/ native boolean getDevicePropertyNative(byte[] address, int type);

    /*package*/ native boolean createBondNative(byte[] address);
    /*package*/ native boolean removeBondNative(byte[] address);
    /*package*/ native boolean cancelBondNative(byte[] address);

    private native boolean startDiscoveryNative();
    private native boolean cancelDiscoveryNative();

    private native boolean pinReplyNative(byte[] address, boolean accept, int len, byte[] pin);
    private native boolean sspReplyNative(byte[] address, int type, boolean
            accept, int passkey);

    /*package*/ native boolean getRemoteServicesNative(byte[] address);

    // TODO(BT) move this to ../btsock dir
    private native int connectSocketNative(byte[] address, int type,
                                           byte[] uuid, int port, int flag);
    private native int createSocketChannelNative(int type, String serviceName,
                                                 byte[] uuid, int port, int flag);

    /*package*/ native boolean configHciSnoopLogNative(boolean enable);

    private native void alarmFiredNative();

    protected void finalize() {
        cleanup();
        if (TRACE_REF) {
            synchronized (AdapterService.class) {
                sRefCount--;
                Log.d(TAG, "REFCOUNT: FINALIZED. INSTANCE_COUNT= " + sRefCount);
            }
        }
    }
}