src/com/android/bluetooth/btservice/AdapterProperties.java - platform/packages/apps/Bluetooth - Git at Google

 /*
  * Copyright (C) 2012 Google Inc.
  */

 package com.android.bluetooth.btservice;

 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothProfile;
 import android.content.Context;
 import android.content.Intent;
 import android.os.ParcelUuid;
 import android.util.Log;
 import android.util.Pair;

 import com.android.bluetooth.Utils;
 import com.android.bluetooth.btservice.RemoteDevices.DeviceProperties;

 import java.util.HashMap;

 class AdapterProperties {
     private static final boolean DBG = true;
     private static final String TAG = "BluetoothAdapterProperties";

     private static final int BD_ADDR_LEN = 6; // 6 bytes
     private String mName;
     private byte[] mAddress;
     private int mBluetoothClass;
     private int mScanMode;
     private int mDiscoverableTimeout;
     private ParcelUuid[] mUuids;
     private BluetoothDevice[] mBondedDevices = new BluetoothDevice[0];

     private int mProfilesConnecting, mProfilesConnected, mProfilesDisconnecting;
     private HashMap<Integer, Pair<Integer, Integer>> mProfileConnectionState;


     private int mConnectionState = BluetoothAdapter.STATE_DISCONNECTED;
     private int mState = BluetoothAdapter.STATE_OFF;

     private static AdapterProperties sInstance;
     private BluetoothAdapter mAdapter;
     private AdapterService mService;
     private Context mContext;
     private boolean mDiscovering;
     private final RemoteDevices mRemoteDevices;

     // Lock for all getters and setters.
     // If finer grained locking is needer, more locks
     // can be added here.
     private Object mObject = new Object();

     private AdapterProperties(AdapterService service, Context context) {
         mAdapter = BluetoothAdapter.getDefaultAdapter();
         mService = service;
         mContext = context;
         mProfileConnectionState = new HashMap<Integer, Pair<Integer, Integer>>();
         mRemoteDevices = RemoteDevices.getInstance(service, context);
     }

     static synchronized AdapterProperties getInstance(AdapterService service, Context context) {
         if (sInstance == null) sInstance = new AdapterProperties(service, context);
         return sInstance;
     }

     public Object Clone() throws CloneNotSupportedException {
         throw new CloneNotSupportedException();
     }

     /**
      * @return the mName
      */
     String getName() {
         synchronized (mObject) {
             return mName;
         }
     }

     /**
      * Set the local adapter property - name
      * @param name the name to set
      */
     boolean setName(String name) {
         synchronized (mObject) {
             return mService.setAdapterPropertyNative(
                     AbstractionLayer.BT_PROPERTY_BDNAME, name.getBytes());
         }
     }

     /**
      * @return the mClass
      */
     int getBluetoothClass() {
         synchronized (mObject) {
             return mBluetoothClass;
         }
     }

     /**
      * @return the mScanMode
      */
     int getScanMode() {
         synchronized (mObject) {
             return mScanMode;
         }
     }

     /**
      * Set the local adapter property - scanMode
      *
      * @param scanMode the ScanMode to set
      */
     boolean setScanMode(int scanMode) {
         synchronized (mObject) {
             return mService.setAdapterPropertyNative(
                     AbstractionLayer.BT_PROPERTY_ADAPTER_SCAN_MODE, Utils.intToByteArray(scanMode));
         }
     }

     /**
      * @return the mUuids
      */
     ParcelUuid[] getUuids() {
         synchronized (mObject) {
             return mUuids;
         }
     }

     /**
      * Set local adapter UUIDs.
      *
      * @param uuids the uuids to be set.
      */
     boolean setUuids(ParcelUuid[] uuids) {
         synchronized (mObject) {
             return mService.setAdapterPropertyNative(
                     AbstractionLayer.BT_PROPERTY_UUIDS, Utils.uuidsToByteArray(uuids));
         }
     }

     /**
      * @return the mAddress
      */
     byte[] getAddress() {
         synchronized (mObject) {
             return mAddress;
         }
     }

     /**
      * @param mConnectionState the mConnectionState to set
      */
     void setConnectionState(int mConnectionState) {
         synchronized (mObject) {
             this.mConnectionState = mConnectionState;
         }
     }

     /**
      * @return the mConnectionState
      */
     int getConnectionState() {
         synchronized (mObject) {
             return mConnectionState;
         }
     }

     /**
      * @param mState the mState to set
      */
     void setState(int mState) {
         synchronized (mObject) {
             this.mState = mState;
         }
     }

     /**
      * @return the mState
      */
     int getState() {
         synchronized (mObject) {
             return mState;
         }
     }

     /**
      * @return the mBondedDevices
      */
     BluetoothDevice[] getBondedDevices() {
         synchronized (mObject) {
             return mBondedDevices;
         }
     }

     int getDiscoverableTimeout() {
         synchronized (mObject) {
             return mDiscoverableTimeout;
         }
     }

     boolean setDiscoverableTimeout(int timeout) {
         synchronized (mObject) {
             return mService.setAdapterPropertyNative(
                     AbstractionLayer.BT_PROPERTY_ADAPTER_DISCOVERABLE_TIMEOUT,
                     Utils.intToByteArray(timeout));
         }
     }

     int getProfileConnectionState(int profile) {
         synchronized (mObject) {
             Pair<Integer, Integer> p = mProfileConnectionState.get(profile);
             if (p != null) return p.first;
             return BluetoothProfile.STATE_DISCONNECTED;
         }
     }

     boolean isDiscovering() {
         synchronized (mObject) {
             return mDiscovering;
         }
     }

     void sendConnectionStateChange(BluetoothDevice device, int profile, int state, int prevState) {
         if (!validateProfileConnectionState(state) ||
                 !validateProfileConnectionState(prevState)) {
             // Previously, an invalid state was broadcast anyway,
             // with the invalid state converted to -1 in the intent.
             // Better to log an error and not send an intent with
             // invalid contents or set mAdapterConnectionState to -1.
             errorLog("Error in sendConnectionStateChange: "
                     + "prevState " + prevState + " state " + state);
             return;
         }

         synchronized (mObject) {
             updateProfileConnectionState(profile, state, prevState);

             if (updateCountersAndCheckForConnectionStateChange(state, prevState)) {
                 setConnectionState(state);

                 Intent intent = new Intent(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
                 intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
                 intent.putExtra(BluetoothAdapter.EXTRA_CONNECTION_STATE,
                         convertToAdapterState(state));
                 intent.putExtra(BluetoothAdapter.EXTRA_PREVIOUS_CONNECTION_STATE,
                         convertToAdapterState(prevState));
                 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
                 mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
                 debugLog("CONNECTION_STATE_CHANGE: " + device + ": "
                         + prevState + " -> " + state);
             }
         }
     }

     private boolean validateProfileConnectionState(int state) {
         return (state == BluetoothProfile.STATE_DISCONNECTED ||
                 state == BluetoothProfile.STATE_CONNECTING ||
                 state == BluetoothProfile.STATE_CONNECTED ||
                 state == BluetoothProfile.STATE_DISCONNECTING);
     }


     private int convertToAdapterState(int state) {
         switch (state) {
             case BluetoothProfile.STATE_DISCONNECTED:
                 return BluetoothAdapter.STATE_DISCONNECTED;
             case BluetoothProfile.STATE_DISCONNECTING:
                 return BluetoothAdapter.STATE_DISCONNECTING;
             case BluetoothProfile.STATE_CONNECTED:
                 return BluetoothAdapter.STATE_CONNECTED;
             case BluetoothProfile.STATE_CONNECTING:
                 return BluetoothAdapter.STATE_CONNECTING;
         }
         Log.e(TAG, "Error in convertToAdapterState");
         return -1;
     }

     private boolean updateCountersAndCheckForConnectionStateChange(int state, int prevState) {
         switch (prevState) {
             case BluetoothProfile.STATE_CONNECTING:
                 mProfilesConnecting--;
                 break;

             case BluetoothProfile.STATE_CONNECTED:
                 mProfilesConnected--;
                 break;

             case BluetoothProfile.STATE_DISCONNECTING:
                 mProfilesDisconnecting--;
                 break;
         }

         switch (state) {
             case BluetoothProfile.STATE_CONNECTING:
                 mProfilesConnecting++;
                 return (mProfilesConnected == 0 && mProfilesConnecting == 1);

             case BluetoothProfile.STATE_CONNECTED:
                 mProfilesConnected++;
                 return (mProfilesConnected == 1);

             case BluetoothProfile.STATE_DISCONNECTING:
                 mProfilesDisconnecting++;
                 return (mProfilesConnected == 0 && mProfilesDisconnecting == 1);

             case BluetoothProfile.STATE_DISCONNECTED:
                 return (mProfilesConnected == 0 && mProfilesConnecting == 0);

             default:
                 return true;
         }
     }

     private void updateProfileConnectionState(int profile, int newState, int oldState) {
         // mProfileConnectionState is a hashmap -
         // <Integer, Pair<Integer, Integer>>
         // The key is the profile, the value is a pair. first element
         // is the state and the second element is the number of devices
         // in that state.
         int numDev = 1;
         int newHashState = newState;
         boolean update = true;

         // The following conditions are considered in this function:
         // 1. If there is no record of profile and state - update
         // 2. If a new device's state is current hash state - increment
         //    number of devices in the state.
         // 3. If a state change has happened to Connected or Connecting
         //    (if current state is not connected), update.
         // 4. If numDevices is 1 and that device state is being updated, update
         // 5. If numDevices is > 1 and one of the devices is changing state,
         //    decrement numDevices but maintain oldState if it is Connected or
         //    Connecting
         Pair<Integer, Integer> stateNumDev = mProfileConnectionState.get(profile);
         if (stateNumDev != null) {
             int currHashState = stateNumDev.first;
             numDev = stateNumDev.second;

             if (newState == currHashState) {
                 numDev ++;
             } else if (newState == BluetoothProfile.STATE_CONNECTED ||
                    (newState == BluetoothProfile.STATE_CONNECTING &&
                     currHashState != BluetoothProfile.STATE_CONNECTED)) {
                  numDev = 1;
             } else if (numDev == 1 && oldState == currHashState) {
                  update = true;
             } else if (numDev > 1 && oldState == currHashState) {
                  numDev --;

                  if (currHashState == BluetoothProfile.STATE_CONNECTED ||
                      currHashState == BluetoothProfile.STATE_CONNECTING) {
                     newHashState = currHashState;
                  }
             } else {
                  update = false;
             }
         }

         if (update) {
             mProfileConnectionState.put(profile, new Pair<Integer, Integer>(newHashState,
                     numDev));
         }
     }

     void adapterPropertyChangedCallback(int[] types, byte[][] values) {
         Intent intent;
         int type;
         byte[] val;
         for (int i = 0; i < types.length; i++) {
             val = values[i];
             type = types[i];
             infoLog("adapterPropertyChangedCallback with type:" + type + " len:" + val.length);
             synchronized (mObject) {
                 switch (type) {
                     case AbstractionLayer.BT_PROPERTY_BDNAME:
                         mName = new String(val);
                         intent = new Intent(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED);
                         intent.putExtra(BluetoothAdapter.EXTRA_LOCAL_NAME, mName);
                         intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
                         mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
                         debugLog("Name is: " + mName);
                         break;
                     case AbstractionLayer.BT_PROPERTY_BDADDR:
                         mAddress = val;
                         debugLog("Address is:" + Utils.getAddressStringFromByte(mAddress));
                         break;
                     case AbstractionLayer.BT_PROPERTY_CLASS_OF_DEVICE:
                         mBluetoothClass = Utils.byteArrayToInt(val, 0);
                         debugLog("BT Class:" + mBluetoothClass);
                         break;
                     case AbstractionLayer.BT_PROPERTY_ADAPTER_SCAN_MODE:
                         int mode = Utils.byteArrayToInt(val, 0);
                         mScanMode = mService.convertScanModeFromHal(mode);
                         intent = new Intent(BluetoothAdapter.ACTION_SCAN_MODE_CHANGED);
                         intent.putExtra(BluetoothAdapter.EXTRA_SCAN_MODE, mScanMode);
                         intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
                         mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
                         debugLog("Scan Mode:" + mScanMode);
                         break;
                     case AbstractionLayer.BT_PROPERTY_UUIDS:
                         mUuids = Utils.byteArrayToUuid(val);
                         break;
                     case AbstractionLayer.BT_PROPERTY_ADAPTER_BONDED_DEVICES:
                         int number = val.length/BD_ADDR_LEN;
                         mBondedDevices = new BluetoothDevice[number];
                         byte[] addrByte = new byte[BD_ADDR_LEN];
                         for (int j = 0; j < number; j++) {
                             System.arraycopy(val, j * BD_ADDR_LEN, addrByte, 0, BD_ADDR_LEN);
                             DeviceProperties prop = mRemoteDevices.addDeviceProperties(addrByte);
                             prop.setBondState(BluetoothDevice.BOND_BONDED);
                             mBondedDevices[j] = mRemoteDevices.getDevice(addrByte);

                             debugLog("Bonded Device" +  mBondedDevices[j]);
                         }
                         break;
                     case AbstractionLayer.BT_PROPERTY_ADAPTER_DISCOVERABLE_TIMEOUT:
                         mDiscoverableTimeout = Utils.byteArrayToInt(val, 0);
                         debugLog("Discoverable Timeout:" + mDiscoverableTimeout);
                         break;
                     default:
                         errorLog("Property change not handled in Java land:" + type);
                 }
             }
         }
     }

     void onBluetoothReady() {
         // When BT is being turned on, all adapter properties will be sent in 1
         // callback. At this stage, set the scan mode.
         synchronized (mObject) {
             if (getState() == BluetoothAdapter.STATE_TURNING_ON &&
                     mScanMode == BluetoothAdapter.SCAN_MODE_NONE) {
                     /* mDiscoverableTimeout is part of the
                        adapterPropertyChangedCallback received before
                        onBluetoothReady */
                     if (mDiscoverableTimeout != 0)
                       setScanMode(AbstractionLayer.BT_SCAN_MODE_CONNECTABLE);
                     else /* if timeout == never (0) at startup */
                       setScanMode(AbstractionLayer.BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
                     /* though not always required, this keeps NV up-to date on first-boot after flash */
                     setDiscoverableTimeout(mDiscoverableTimeout);
             }
         }
     }

     void discoveryStateChangeCallback(int state) {
         infoLog("Callback:discoveryStateChangeCallback with state:" + state);
         synchronized (mObject) {
             Intent intent;
             if (state == AbstractionLayer.BT_DISCOVERY_STOPPED) {
                 mDiscovering = false;
                 intent = new Intent(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
                 mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
             } else if (state == AbstractionLayer.BT_DISCOVERY_STARTED) {
                 mDiscovering = true;
                 intent = new Intent(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
                 mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
             }
         }
     }

     private void infoLog(String msg) {
         Log.i(TAG, msg);
     }

     private void debugLog(String msg) {
         if (DBG) Log.d(TAG, msg);
     }

     private void errorLog(String msg) {
         Log.e(TAG, msg);
     }
 }
	/*
	* Copyright (C) 2012 Google Inc.
	*/

	package com.android.bluetooth.btservice;

	import android.bluetooth.BluetoothAdapter;
	import android.bluetooth.BluetoothDevice;
	import android.bluetooth.BluetoothProfile;
	import android.content.Context;
	import android.content.Intent;
	import android.os.ParcelUuid;
	import android.util.Log;
	import android.util.Pair;

	import com.android.bluetooth.Utils;
	import com.android.bluetooth.btservice.RemoteDevices.DeviceProperties;

	import java.util.HashMap;

	class AdapterProperties {
	private static final boolean DBG = true;
	private static final String TAG = "BluetoothAdapterProperties";

	private static final int BD_ADDR_LEN = 6; // 6 bytes
	private String mName;
	private byte[] mAddress;
	private int mBluetoothClass;
	private int mScanMode;
	private int mDiscoverableTimeout;
	private ParcelUuid[] mUuids;
	private BluetoothDevice[] mBondedDevices = new BluetoothDevice[0];

	private int mProfilesConnecting, mProfilesConnected, mProfilesDisconnecting;
	private HashMap<Integer, Pair<Integer, Integer>> mProfileConnectionState;


	private int mConnectionState = BluetoothAdapter.STATE_DISCONNECTED;
	private int mState = BluetoothAdapter.STATE_OFF;

	private static AdapterProperties sInstance;
	private BluetoothAdapter mAdapter;
	private AdapterService mService;
	private Context mContext;
	private boolean mDiscovering;
	private final RemoteDevices mRemoteDevices;

	// Lock for all getters and setters.
	// If finer grained locking is needer, more locks
	// can be added here.
	private Object mObject = new Object();

	private AdapterProperties(AdapterService service, Context context) {
	mAdapter = BluetoothAdapter.getDefaultAdapter();
	mService = service;
	mContext = context;
	mProfileConnectionState = new HashMap<Integer, Pair<Integer, Integer>>();
	mRemoteDevices = RemoteDevices.getInstance(service, context);
	}

	static synchronized AdapterProperties getInstance(AdapterService service, Context context) {
	if (sInstance == null) sInstance = new AdapterProperties(service, context);
	return sInstance;
	}

	public Object Clone() throws CloneNotSupportedException {
	throw new CloneNotSupportedException();
	}

	/**
	* @return the mName
	*/
	String getName() {
	synchronized (mObject) {
	return mName;
	}
	}

	/**
	* Set the local adapter property - name
	* @param name the name to set
	*/
	boolean setName(String name) {
	synchronized (mObject) {
	return mService.setAdapterPropertyNative(
	AbstractionLayer.BT_PROPERTY_BDNAME, name.getBytes());
	}
	}

	/**
	* @return the mClass
	*/
	int getBluetoothClass() {
	synchronized (mObject) {
	return mBluetoothClass;
	}
	}

	/**
	* @return the mScanMode
	*/
	int getScanMode() {
	synchronized (mObject) {
	return mScanMode;
	}
	}

	/**
	* Set the local adapter property - scanMode
	*
	* @param scanMode the ScanMode to set
	*/
	boolean setScanMode(int scanMode) {
	synchronized (mObject) {
	return mService.setAdapterPropertyNative(
	AbstractionLayer.BT_PROPERTY_ADAPTER_SCAN_MODE, Utils.intToByteArray(scanMode));
	}
	}

	/**
	* @return the mUuids
	*/
	ParcelUuid[] getUuids() {
	synchronized (mObject) {
	return mUuids;
	}
	}

	/**
	* Set local adapter UUIDs.
	*
	* @param uuids the uuids to be set.
	*/
	boolean setUuids(ParcelUuid[] uuids) {
	synchronized (mObject) {
	return mService.setAdapterPropertyNative(
	AbstractionLayer.BT_PROPERTY_UUIDS, Utils.uuidsToByteArray(uuids));
	}
	}

	/**
	* @return the mAddress
	*/
	byte[] getAddress() {
	synchronized (mObject) {
	return mAddress;
	}
	}

	/**
	* @param mConnectionState the mConnectionState to set
	*/
	void setConnectionState(int mConnectionState) {
	synchronized (mObject) {
	this.mConnectionState = mConnectionState;
	}
	}

	/**
	* @return the mConnectionState
	*/
	int getConnectionState() {
	synchronized (mObject) {
	return mConnectionState;
	}
	}

	/**
	* @param mState the mState to set
	*/
	void setState(int mState) {
	synchronized (mObject) {
	this.mState = mState;
	}
	}

	/**
	* @return the mState
	*/
	int getState() {
	synchronized (mObject) {
	return mState;
	}
	}

	/**
	* @return the mBondedDevices
	*/
	BluetoothDevice[] getBondedDevices() {
	synchronized (mObject) {
	return mBondedDevices;
	}
	}

	int getDiscoverableTimeout() {
	synchronized (mObject) {
	return mDiscoverableTimeout;
	}
	}

	boolean setDiscoverableTimeout(int timeout) {
	synchronized (mObject) {
	return mService.setAdapterPropertyNative(
	AbstractionLayer.BT_PROPERTY_ADAPTER_DISCOVERABLE_TIMEOUT,
	Utils.intToByteArray(timeout));
	}
	}

	int getProfileConnectionState(int profile) {
	synchronized (mObject) {
	Pair<Integer, Integer> p = mProfileConnectionState.get(profile);
	if (p != null) return p.first;
	return BluetoothProfile.STATE_DISCONNECTED;
	}
	}

	boolean isDiscovering() {
	synchronized (mObject) {
	return mDiscovering;
	}
	}

	void sendConnectionStateChange(BluetoothDevice device, int profile, int state, int prevState) {
	if (!validateProfileConnectionState(state) \|\|
	!validateProfileConnectionState(prevState)) {
	// Previously, an invalid state was broadcast anyway,
	// with the invalid state converted to -1 in the intent.
	// Better to log an error and not send an intent with
	// invalid contents or set mAdapterConnectionState to -1.
	errorLog("Error in sendConnectionStateChange: "
	+ "prevState " + prevState + " state " + state);
	return;
	}

	synchronized (mObject) {
	updateProfileConnectionState(profile, state, prevState);

	if (updateCountersAndCheckForConnectionStateChange(state, prevState)) {
	setConnectionState(state);

	Intent intent = new Intent(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
	intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
	intent.putExtra(BluetoothAdapter.EXTRA_CONNECTION_STATE,
	convertToAdapterState(state));
	intent.putExtra(BluetoothAdapter.EXTRA_PREVIOUS_CONNECTION_STATE,
	convertToAdapterState(prevState));
	intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
	mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
	debugLog("CONNECTION_STATE_CHANGE: " + device + ": "
	+ prevState + " -> " + state);
	}
	}
	}

	private boolean validateProfileConnectionState(int state) {
	return (state == BluetoothProfile.STATE_DISCONNECTED \|\|
	state == BluetoothProfile.STATE_CONNECTING \|\|
	state == BluetoothProfile.STATE_CONNECTED \|\|
	state == BluetoothProfile.STATE_DISCONNECTING);
	}


	private int convertToAdapterState(int state) {
	switch (state) {
	case BluetoothProfile.STATE_DISCONNECTED:
	return BluetoothAdapter.STATE_DISCONNECTED;
	case BluetoothProfile.STATE_DISCONNECTING:
	return BluetoothAdapter.STATE_DISCONNECTING;
	case BluetoothProfile.STATE_CONNECTED:
	return BluetoothAdapter.STATE_CONNECTED;
	case BluetoothProfile.STATE_CONNECTING:
	return BluetoothAdapter.STATE_CONNECTING;
	}
	Log.e(TAG, "Error in convertToAdapterState");
	return -1;
	}

	private boolean updateCountersAndCheckForConnectionStateChange(int state, int prevState) {
	switch (prevState) {
	case BluetoothProfile.STATE_CONNECTING:
	mProfilesConnecting--;
	break;

	case BluetoothProfile.STATE_CONNECTED:
	mProfilesConnected--;
	break;

	case BluetoothProfile.STATE_DISCONNECTING:
	mProfilesDisconnecting--;
	break;
	}

	switch (state) {
	case BluetoothProfile.STATE_CONNECTING:
	mProfilesConnecting++;
	return (mProfilesConnected == 0 && mProfilesConnecting == 1);

	case BluetoothProfile.STATE_CONNECTED:
	mProfilesConnected++;
	return (mProfilesConnected == 1);

	case BluetoothProfile.STATE_DISCONNECTING:
	mProfilesDisconnecting++;
	return (mProfilesConnected == 0 && mProfilesDisconnecting == 1);

	case BluetoothProfile.STATE_DISCONNECTED:
	return (mProfilesConnected == 0 && mProfilesConnecting == 0);

	default:
	return true;
	}
	}

	private void updateProfileConnectionState(int profile, int newState, int oldState) {
	// mProfileConnectionState is a hashmap -
	// <Integer, Pair<Integer, Integer>>
	// The key is the profile, the value is a pair. first element
	// is the state and the second element is the number of devices
	// in that state.
	int numDev = 1;
	int newHashState = newState;
	boolean update = true;

	// The following conditions are considered in this function:
	// 1. If there is no record of profile and state - update
	// 2. If a new device's state is current hash state - increment
	// number of devices in the state.
	// 3. If a state change has happened to Connected or Connecting
	// (if current state is not connected), update.
	// 4. If numDevices is 1 and that device state is being updated, update
	// 5. If numDevices is > 1 and one of the devices is changing state,
	// decrement numDevices but maintain oldState if it is Connected or
	// Connecting
	Pair<Integer, Integer> stateNumDev = mProfileConnectionState.get(profile);
	if (stateNumDev != null) {
	int currHashState = stateNumDev.first;
	numDev = stateNumDev.second;

	if (newState == currHashState) {
	numDev ++;
	} else if (newState == BluetoothProfile.STATE_CONNECTED \|\|
	(newState == BluetoothProfile.STATE_CONNECTING &&
	currHashState != BluetoothProfile.STATE_CONNECTED)) {
	numDev = 1;
	} else if (numDev == 1 && oldState == currHashState) {
	update = true;
	} else if (numDev > 1 && oldState == currHashState) {
	numDev --;

	if (currHashState == BluetoothProfile.STATE_CONNECTED \|\|
	currHashState == BluetoothProfile.STATE_CONNECTING) {
	newHashState = currHashState;
	}
	} else {
	update = false;
	}
	}

	if (update) {
	mProfileConnectionState.put(profile, new Pair<Integer, Integer>(newHashState,
	numDev));
	}
	}

	void adapterPropertyChangedCallback(int[] types, byte[][] values) {
	Intent intent;
	int type;
	byte[] val;
	for (int i = 0; i < types.length; i++) {
	val = values[i];
	type = types[i];
	infoLog("adapterPropertyChangedCallback with type:" + type + " len:" + val.length);
	synchronized (mObject) {
	switch (type) {
	case AbstractionLayer.BT_PROPERTY_BDNAME:
	mName = new String(val);
	intent = new Intent(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED);
	intent.putExtra(BluetoothAdapter.EXTRA_LOCAL_NAME, mName);
	intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
	mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
	debugLog("Name is: " + mName);
	break;
	case AbstractionLayer.BT_PROPERTY_BDADDR:
	mAddress = val;
	debugLog("Address is:" + Utils.getAddressStringFromByte(mAddress));
	break;
	case AbstractionLayer.BT_PROPERTY_CLASS_OF_DEVICE:
	mBluetoothClass = Utils.byteArrayToInt(val, 0);
	debugLog("BT Class:" + mBluetoothClass);
	break;
	case AbstractionLayer.BT_PROPERTY_ADAPTER_SCAN_MODE:
	int mode = Utils.byteArrayToInt(val, 0);
	mScanMode = mService.convertScanModeFromHal(mode);
	intent = new Intent(BluetoothAdapter.ACTION_SCAN_MODE_CHANGED);
	intent.putExtra(BluetoothAdapter.EXTRA_SCAN_MODE, mScanMode);
	intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
	mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
	debugLog("Scan Mode:" + mScanMode);
	break;
	case AbstractionLayer.BT_PROPERTY_UUIDS:
	mUuids = Utils.byteArrayToUuid(val);
	break;
	case AbstractionLayer.BT_PROPERTY_ADAPTER_BONDED_DEVICES:
	int number = val.length/BD_ADDR_LEN;
	mBondedDevices = new BluetoothDevice[number];
	byte[] addrByte = new byte[BD_ADDR_LEN];
	for (int j = 0; j < number; j++) {
	System.arraycopy(val, j * BD_ADDR_LEN, addrByte, 0, BD_ADDR_LEN);
	DeviceProperties prop = mRemoteDevices.addDeviceProperties(addrByte);
	prop.setBondState(BluetoothDevice.BOND_BONDED);
	mBondedDevices[j] = mRemoteDevices.getDevice(addrByte);

	debugLog("Bonded Device" + mBondedDevices[j]);
	}
	break;
	case AbstractionLayer.BT_PROPERTY_ADAPTER_DISCOVERABLE_TIMEOUT:
	mDiscoverableTimeout = Utils.byteArrayToInt(val, 0);
	debugLog("Discoverable Timeout:" + mDiscoverableTimeout);
	break;
	default:
	errorLog("Property change not handled in Java land:" + type);
	}
	}
	}
	}

	void onBluetoothReady() {
	// When BT is being turned on, all adapter properties will be sent in 1
	// callback. At this stage, set the scan mode.
	synchronized (mObject) {
	if (getState() == BluetoothAdapter.STATE_TURNING_ON &&
	mScanMode == BluetoothAdapter.SCAN_MODE_NONE) {
	/* mDiscoverableTimeout is part of the
	adapterPropertyChangedCallback received before
	onBluetoothReady */
	if (mDiscoverableTimeout != 0)
	setScanMode(AbstractionLayer.BT_SCAN_MODE_CONNECTABLE);
	else /* if timeout == never (0) at startup */
	setScanMode(AbstractionLayer.BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
	/* though not always required, this keeps NV up-to date on first-boot after flash */
	setDiscoverableTimeout(mDiscoverableTimeout);
	}
	}
	}

	void discoveryStateChangeCallback(int state) {
	infoLog("Callback:discoveryStateChangeCallback with state:" + state);
	synchronized (mObject) {
	Intent intent;
	if (state == AbstractionLayer.BT_DISCOVERY_STOPPED) {
	mDiscovering = false;
	intent = new Intent(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
	mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
	} else if (state == AbstractionLayer.BT_DISCOVERY_STARTED) {
	mDiscovering = true;
	intent = new Intent(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
	mContext.sendBroadcast(intent, mService.BLUETOOTH_PERM);
	}
	}
	}

	private void infoLog(String msg) {
	Log.i(TAG, msg);
	}

	private void debugLog(String msg) {
	if (DBG) Log.d(TAG, msg);
	}

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