Refactor NativeInterace to wrap static native function as public non-static function (b360762c) · Commits · e / os / android_packages_modules_Bluetooth

android/app/src/com/android/bluetooth/hfpclient/HeadsetClientService.java

+4 −4

Original line number	Diff line number	Diff line
		@@ -80,8 +80,8 @@ public class HeadsetClientService extends ProfileService {
		}

		// Setup the JNI service
		mNativeInterface = new NativeInterface();
		mNativeInterface.initializeNative();
		mNativeInterface = NativeInterface.getInstance();
		mNativeInterface.initialize();

		mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
		if (mAudioManager == null) {
		@@ -137,7 +137,7 @@ public class HeadsetClientService extends ProfileService {
		mSmThread.quit();
		mSmThread = null;

		mNativeInterface.cleanupNative();
		mNativeInterface.cleanup();
		mNativeInterface = null;

		return true;
		@@ -885,7 +885,7 @@ public class HeadsetClientService extends ProfileService {

		// Allocate a new SM
		Log.d(TAG, "Creating a new state machine");
		sm = mSmFactory.make(this, mSmThread);
		sm = mSmFactory.make(this, mSmThread, mNativeInterface);
		mStateMachineMap.put(device, sm);
		return sm;
		}

android/app/src/com/android/bluetooth/hfpclient/HeadsetClientStateMachine.java

+34 −29

Original line number	Diff line number	Diff line
		@@ -174,7 +174,8 @@ public class HeadsetClientStateMachine extends StateMachine {
		// This is returned when requesting focus from AudioManager
		private AudioFocusRequest mAudioFocusRequest;

		private AudioManager mAudioManager;
		private final AudioManager mAudioManager;
		private final NativeInterface mNativeInterface;

		// Accessor for the states, useful for reusing the state machines
		public IState getDisconnectedState() {
		@@ -264,7 +265,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		private boolean queryCallsStart() {
		logD("queryCallsStart");
		clearPendingAction();
		NativeInterface.queryCurrentCallsNative(getByteAddress(mCurrentDevice));
		mNativeInterface.queryCurrentCalls(getByteAddress(mCurrentDevice));
		addQueuedAction(QUERY_CURRENT_CALLS, 0);
		return true;
		}
		@@ -487,7 +488,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		routeHfpAudio(true);
		}

		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice), action, 0)) {
		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice), action, 0)) {
		addQueuedAction(ACCEPT_CALL, action);
		} else {
		Log.e(TAG, "ERROR: Couldn't accept a call, action:" + action);
		@@ -526,8 +527,8 @@ public class HeadsetClientStateMachine extends StateMachine {
		return;
		}

		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice), action, 0)) {
		logD("Reject call action " + action);
		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice), action, 0)) {
		addQueuedAction(REJECT_CALL, action);
		} else {
		Log.e(TAG, "ERROR: Couldn't reject a call, action:" + action);
		@@ -551,7 +552,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		action = HeadsetClientHalConstants.CALL_ACTION_CHLD_2;
		}

		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice), action, 0)) {
		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice), action, 0)) {
		addQueuedAction(HOLD_CALL, action);
		} else {
		Log.e(TAG, "ERROR: Couldn't hold a call, action:" + action);
		@@ -572,7 +573,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		action = HeadsetClientHalConstants.CALL_ACTION_CHLD_0;
		}
		if (c != null) {
		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice), action, 0)) {
		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice), action, 0)) {
		addQueuedAction(TERMINATE_CALL, action);
		} else {
		Log.e(TAG, "ERROR: Couldn't terminate outgoing call");
		@@ -590,7 +591,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		return;
		}

		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice),
		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice),
		HeadsetClientHalConstants.CALL_ACTION_CHLD_2X, idx)) {
		addQueuedAction(ENTER_PRIVATE_MODE, c);
		} else {
		@@ -606,7 +607,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		return;
		}

		if (NativeInterface.handleCallActionNative(getByteAddress(mCurrentDevice),
		if (mNativeInterface.handleCallAction(getByteAddress(mCurrentDevice),
		HeadsetClientHalConstants.CALL_ACTION_CHLD_4, -1)) {
		addQueuedAction(EXPLICIT_CALL_TRANSFER);
		} else {
		@@ -659,9 +660,11 @@ public class HeadsetClientStateMachine extends StateMachine {
		return b;
		}

		HeadsetClientStateMachine(HeadsetClientService context, Looper looper) {
		HeadsetClientStateMachine(HeadsetClientService context, Looper looper,
		NativeInterface nativeInterface) {
		super(TAG, looper);
		mService = context;
		mNativeInterface = nativeInterface;
		mAudioManager = mService.getAudioManager();

		mAdapter = BluetoothAdapter.getDefaultAdapter();
		@@ -699,9 +702,11 @@ public class HeadsetClientStateMachine extends StateMachine {
		setInitialState(mDisconnected);
		}

		static HeadsetClientStateMachine make(HeadsetClientService context, Looper l) {
		static HeadsetClientStateMachine make(HeadsetClientService context, Looper looper,
		NativeInterface nativeInterface) {
		logD("make");
		HeadsetClientStateMachine hfcsm = new HeadsetClientStateMachine(context, l);
		HeadsetClientStateMachine hfcsm = new HeadsetClientStateMachine(context, looper,
		nativeInterface);
		hfcsm.start();
		return hfcsm;
		}
		@@ -739,7 +744,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		public void doQuit() {
		logD("doQuit");
		if (mCurrentDevice != null) {
		NativeInterface.disconnectNative(getByteAddress(mCurrentDevice));
		mNativeInterface.disconnect(getByteAddress(mCurrentDevice));
		}
		routeHfpAudio(false);
		returnAudioFocusIfNecessary();
		@@ -825,7 +830,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		switch (message.what) {
		case CONNECT:
		BluetoothDevice device = (BluetoothDevice) message.obj;
		if (!NativeInterface.connectNative(getByteAddress(device))) {
		if (!mNativeInterface.connect(getByteAddress(device))) {
		// No state transition is involved, fire broadcast immediately
		broadcastConnectionState(device, BluetoothProfile.STATE_DISCONNECTED,
		BluetoothProfile.STATE_DISCONNECTED);
		@@ -871,7 +876,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		+ " bondState=" + device.getBondState());
		// reject the connection and stay in Disconnected state
		// itself
		NativeInterface.disconnectNative(getByteAddress(device));
		mNativeInterface.disconnect(getByteAddress(device));
		// the other profile connection should be initiated
		AdapterService adapterService = AdapterService.getAdapterService();
		// No state transition is involved, fire broadcast immediately
		@@ -985,7 +990,7 @@ public class HeadsetClientStateMachine extends StateMachine {

		// We do not support devices which do not support enhanced call status (ECS).
		if ((mPeerFeatures & HeadsetClientHalConstants.PEER_FEAT_ECS) == 0) {
		NativeInterface.disconnectNative(getByteAddress(device));
		mNativeInterface.disconnect(getByteAddress(device));
		return;
		}

		@@ -993,7 +998,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		if (HeadsetClientHalConstants.HANDSFREECLIENT_NREC_SUPPORTED && (
		(mPeerFeatures & HeadsetClientHalConstants.PEER_FEAT_ECNR)
		== HeadsetClientHalConstants.PEER_FEAT_ECNR)) {
		if (NativeInterface.sendATCmdNative(getByteAddress(mCurrentDevice),
		if (mNativeInterface.sendATCmd(getByteAddress(mCurrentDevice),
		HeadsetClientHalConstants.HANDSFREECLIENT_AT_CMD_NREC, 1, 0,
		null)) {
		addQueuedAction(DISABLE_NREC);
		@@ -1083,20 +1088,20 @@ public class HeadsetClientStateMachine extends StateMachine {
		// already connected to this device, do nothing
		break;
		}
		NativeInterface.connectNative(getByteAddress(device));
		mNativeInterface.connect(getByteAddress(device));
		break;
		case DISCONNECT:
		BluetoothDevice dev = (BluetoothDevice) message.obj;
		if (!mCurrentDevice.equals(dev)) {
		break;
		}
		if (!NativeInterface.disconnectNative(getByteAddress(dev))) {
		if (!mNativeInterface.disconnect(getByteAddress(dev))) {
		Log.e(TAG, "disconnectNative failed for " + dev);
		}
		break;

		case CONNECT_AUDIO:
		if (!NativeInterface.connectAudioNative(getByteAddress(mCurrentDevice))) {
		if (!mNativeInterface.connectAudio(getByteAddress(mCurrentDevice))) {
		Log.e(TAG, "ERROR: Couldn't connect Audio for device " + mCurrentDevice);
		// No state transition is involved, fire broadcast immediately
		broadcastAudioState(mCurrentDevice,
		@@ -1108,14 +1113,14 @@ public class HeadsetClientStateMachine extends StateMachine {
		break;

		case DISCONNECT_AUDIO:
		if (!NativeInterface.disconnectAudioNative(getByteAddress(mCurrentDevice))) {
		if (!mNativeInterface.disconnectAudio(getByteAddress(mCurrentDevice))) {
		Log.e(TAG, "ERROR: Couldn't disconnect Audio for device " + mCurrentDevice);
		}
		break;

		case VOICE_RECOGNITION_START:
		if (mVoiceRecognitionActive == HeadsetClientHalConstants.VR_STATE_STOPPED) {
		if (NativeInterface.startVoiceRecognitionNative(
		if (mNativeInterface.startVoiceRecognition(
		getByteAddress(mCurrentDevice))) {
		addQueuedAction(VOICE_RECOGNITION_START);
		} else {
		@@ -1126,7 +1131,7 @@ public class HeadsetClientStateMachine extends StateMachine {

		case VOICE_RECOGNITION_STOP:
		if (mVoiceRecognitionActive == HeadsetClientHalConstants.VR_STATE_STARTED) {
		if (NativeInterface.stopVoiceRecognitionNative(
		if (mNativeInterface.stopVoiceRecognition(
		getByteAddress(mCurrentDevice))) {
		addQueuedAction(VOICE_RECOGNITION_STOP);
		} else {
		@@ -1146,7 +1151,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		logD("Volume" + amVol + ":" + mCommandedSpeakerVolume);
		// Volume was changed by a 3rd party
		mCommandedSpeakerVolume = -1;
		if (NativeInterface.setVolumeNative(getByteAddress(mCurrentDevice),
		if (mNativeInterface.setVolume(getByteAddress(mCurrentDevice),
		HeadsetClientHalConstants.VOLUME_TYPE_SPK, hfVol)) {
		addQueuedAction(SET_SPEAKER_VOLUME);
		}
		@@ -1157,7 +1162,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		BluetoothHeadsetClientCall c = (BluetoothHeadsetClientCall) message.obj;
		mCalls.put(HF_ORIGINATED_CALL_ID, c);

		if (NativeInterface.dialNative(getByteAddress(mCurrentDevice), c.getNumber())) {
		if (mNativeInterface.dial(getByteAddress(mCurrentDevice), c.getNumber())) {
		addQueuedAction(DIAL_NUMBER, c.getNumber());
		// Start looping on calling current calls.
		sendMessage(QUERY_CURRENT_CALLS);
		@@ -1189,7 +1194,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		explicitCallTransfer();
		break;
		case SEND_DTMF:
		if (NativeInterface.sendDtmfNative(getByteAddress(mCurrentDevice),
		if (mNativeInterface.sendDtmf(getByteAddress(mCurrentDevice),
		(byte) message.arg1)) {
		addQueuedAction(SEND_DTMF);
		} else {
		@@ -1197,7 +1202,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		}
		break;
		case SUBSCRIBER_INFO:
		if (NativeInterface.retrieveSubscriberInfoNative(
		if (mNativeInterface.retrieveSubscriberInfo(
		getByteAddress(mCurrentDevice))) {
		addQueuedAction(SUBSCRIBER_INFO);
		} else {
		@@ -1248,7 +1253,7 @@ public class HeadsetClientStateMachine extends StateMachine {

		if (mIndicatorNetworkState
		== HeadsetClientHalConstants.NETWORK_STATE_AVAILABLE) {
		if (NativeInterface.queryCurrentOperatorNameNative(
		if (mNativeInterface.queryCurrentOperatorName(
		getByteAddress(mCurrentDevice))) {
		addQueuedAction(QUERY_OPERATOR_NAME);
		} else {
		@@ -1529,7 +1534,7 @@ public class HeadsetClientStateMachine extends StateMachine {
		* StackEvent.EVENT_TYPE_AUDIO_STATE_CHANGED, that triggers State
		* Machines state changing
		*/
		if (NativeInterface.disconnectAudioNative(getByteAddress(mCurrentDevice))) {
		if (mNativeInterface.disconnectAudio(getByteAddress(mCurrentDevice))) {
		routeHfpAudio(false);
		returnAudioFocusIfNecessary();
		}

android/app/src/com/android/bluetooth/hfpclient/HeadsetClientStateMachineFactory.java

+7 −2

Original line number	Diff line number	Diff line
		@@ -20,7 +20,12 @@ import android.os.HandlerThread;

		// Factory so that StateMachine objected can be mocked
		public class HeadsetClientStateMachineFactory {
		public HeadsetClientStateMachine make(HeadsetClientService context, HandlerThread t) {
		return HeadsetClientStateMachine.make(context, t.getLooper());
		/**
		* Factory method to create state machine for headset client
		*
		*/
		public HeadsetClientStateMachine make(HeadsetClientService context, HandlerThread t,
		NativeInterface nativeInterface) {
		return HeadsetClientStateMachine.make(context, t.getLooper(), nativeInterface);
		}
		}

android/app/src/com/android/bluetooth/hfpclient/NativeInterface.java

+247 −21

Original line number	Diff line number	Diff line
		@@ -24,7 +24,14 @@ import android.bluetooth.BluetoothAdapter;
		import android.bluetooth.BluetoothDevice;
		import android.util.Log;

		class NativeInterface {
		import com.android.internal.annotations.VisibleForTesting;

		/**
		* Defines native calls that are used by state machine/service to either send or receive
		* messages to/from the native stack. This file is registered for the native methods in
		* corresponding CPP file.
		*/
		public class NativeInterface {
		private static final String TAG = "NativeInterface";
		private static final boolean DBG = false;

		@@ -32,46 +39,265 @@ class NativeInterface {
		classInitNative();
		}

		NativeInterface() {}
		private NativeInterface() {}
		private static NativeInterface sInterface;
		private static final Object INSTANCE_LOCK = new Object();

		/**
		* This class is a singleton because native library should only be loaded once
		*
		* @return default instance
		*/
		public static NativeInterface getInstance() {
		synchronized (INSTANCE_LOCK) {
		if (sInterface == null) {
		sInterface = new NativeInterface();
		}
		}
		return sInterface;
		}

		// Native wrappers to help unit testing
		/**
		* Initialize native stack
		*/
		@VisibleForTesting
		public void initialize() {
		initializeNative();
		}

		/**
		* Close and clean up native stack
		*/
		@VisibleForTesting
		public void cleanup() {
		cleanupNative();
		}

		/**
		* Connect to the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean connect(byte[] address) {
		return connectNative(address);
		}

		/**
		* Disconnect from the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean disconnect(byte[] address) {
		return disconnectNative(address);
		}

		/**
		* Initiate audio connection to the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean connectAudio(byte[] address) {
		return connectAudioNative(address);
		}

		/**
		* Close audio connection from the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		public boolean disconnectAudio(byte[] address) {
		return disconnectAudioNative(address);
		}

		/**
		* Initiate voice recognition to the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean startVoiceRecognition(byte[] address) {
		return startVoiceRecognitionNative(address);
		}

		/**
		* Close voice recognition to the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean stopVoiceRecognition(byte[] address) {
		return stopVoiceRecognitionNative(address);
		}

		/**
		* Set volume to the specified paired device
		*
		* @param volumeType type of volume as in
		* HeadsetClientHalConstants.VOLUME_TYPE_xxxx
		* @param volume volume level
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean setVolume(byte[] address, int volumeType, int volume) {
		return setVolumeNative(address, volumeType, volume);
		}

		/**
		* dial number from the specified paired device
		*
		* @param number phone number to be dialed
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean dial(byte[] address, String number) {
		return dialNative(address, number);
		}

		/**
		* Memory dialing from the specified paired device
		*
		* @param location memory location
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean dialMemory(byte[] address, int location) {
		return dialMemoryNative(address, location);
		}

		/**
		* Apply action to call
		*
		* @action action (e.g. hold, terminate etc)
		* @index call index
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean handleCallAction(byte[] address, int action, int index) {
		return handleCallActionNative(address, action, index);
		}

		/**
		* Query current call status from the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean queryCurrentCalls(byte[] address) {
		return queryCurrentCallsNative(address);
		}

		/**
		* Query operator name from the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean queryCurrentOperatorName(byte[] address) {
		return queryCurrentOperatorNameNative(address);
		}

		/**
		* Retrieve subscriber number from the specified paired device
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean retrieveSubscriberInfo(byte[] address) {
		return retrieveSubscriberInfoNative(address);
		}

		/**
		* Transmit DTMF code
		*
		* @param code DTMF code
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean sendDtmf(byte[] address, byte code) {
		return sendDtmfNative(address, code);
		}

		/**
		* Request last voice tag
		*
		* @param address target device's address
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean requestLastVoiceTagNumber(byte[] address) {
		return requestLastVoiceTagNumberNative(address);
		}

		/**
		* Send an AT command
		*
		* @param atCmd command code
		* @param val1 command specific argurment1
		* @param val2 command specific argurment2
		* @param arg other command specific argurments
		* @return True on success, False on failure
		*/
		@VisibleForTesting
		public boolean sendATCmd(byte[] address, int atCmd, int val1, int val2, String arg) {
		return sendATCmdNative(address, atCmd, val1, val2, arg);
		}

		// Native methods that call into the JNI interface
		static native void classInitNative();
		private static native void classInitNative();

		native void initializeNative();
		private native void initializeNative();

		native void cleanupNative();
		private native void cleanupNative();

		static native boolean connectNative(byte[] address);
		private static native boolean connectNative(byte[] address);

		static native boolean disconnectNative(byte[] address);
		private static native boolean disconnectNative(byte[] address);

		static native boolean connectAudioNative(byte[] address);
		private static native boolean connectAudioNative(byte[] address);

		static native boolean disconnectAudioNative(byte[] address);
		private static native boolean disconnectAudioNative(byte[] address);

		static native boolean startVoiceRecognitionNative(byte[] address);
		private static native boolean startVoiceRecognitionNative(byte[] address);

		static native boolean stopVoiceRecognitionNative(byte[] address);
		private static native boolean stopVoiceRecognitionNative(byte[] address);

		static native boolean setVolumeNative(byte[] address, int volumeType, int volume);
		private static native boolean setVolumeNative(byte[] address, int volumeType, int volume);

		static native boolean dialNative(byte[] address, String number);
		private static native boolean dialNative(byte[] address, String number);

		static native boolean dialMemoryNative(byte[] address, int location);
		private static native boolean dialMemoryNative(byte[] address, int location);

		static native boolean handleCallActionNative(byte[] address, int action, int index);
		private static native boolean handleCallActionNative(byte[] address, int action, int index);

		static native boolean queryCurrentCallsNative(byte[] address);
		private static native boolean queryCurrentCallsNative(byte[] address);

		static native boolean queryCurrentOperatorNameNative(byte[] address);
		private static native boolean queryCurrentOperatorNameNative(byte[] address);

		static native boolean retrieveSubscriberInfoNative(byte[] address);
		private static native boolean retrieveSubscriberInfoNative(byte[] address);

		static native boolean sendDtmfNative(byte[] address, byte code);
		private static native boolean sendDtmfNative(byte[] address, byte code);

		static native boolean requestLastVoiceTagNumberNative(byte[] address);
		private static native boolean requestLastVoiceTagNumberNative(byte[] address);

		static native boolean sendATCmdNative(byte[] address, int atCmd, int val1, int val2,
		private static native boolean sendATCmdNative(byte[] address, int atCmd, int val1, int val2,
		String arg);

		private BluetoothDevice getDevice(byte[] address) {

android/app/tests/unit/src/com/android/bluetooth/hfpclient/HeadsetClientStateMachineTest.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -53,6 +53,8 @@ public class HeadsetClientStateMachineTest {
		@Mock
		private AudioManager mAudioManager;

		private NativeInterface mNativeInterface;

		private static final int STANDARD_WAIT_MILLIS = 1000;
		private static final int QUERY_CURRENT_CALLS_WAIT_MILLIS = 2000;
		private static final int QUERY_CURRENT_CALLS_TEST_WAIT_MILLIS = QUERY_CURRENT_CALLS_WAIT_MILLIS
		@@ -73,6 +75,7 @@ public class HeadsetClientStateMachineTest {
		mAudioManager);
		when(mHeadsetClientService.getResources()).thenReturn(mMockHfpResources);
		when(mMockHfpResources.getBoolean(R.bool.hfp_clcc_poll_during_call)).thenReturn(true);
		mNativeInterface = spy(NativeInterface.getInstance());

		// This line must be called to make sure relevant objects are initialized properly
		mAdapter = BluetoothAdapter.getDefaultAdapter();
		@@ -84,7 +87,8 @@ public class HeadsetClientStateMachineTest {
		mHandlerThread.start();
		// Manage looper execution in main test thread explicitly to guarantee timing consistency
		mHeadsetClientStateMachine =
		new HeadsetClientStateMachine(mHeadsetClientService, mHandlerThread.getLooper());
		new HeadsetClientStateMachine(mHeadsetClientService, mHandlerThread.getLooper(),
		mNativeInterface);
		mHeadsetClientStateMachine.start();
		}