/**************************************************************************************************
Filename: BluetoothLeService.java
Copyright (c) 2013 - 2014 Texas Instruments Incorporated
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package com.example.ti.ble.common;
import java.lang.reflect.Method;
import java.util.LinkedList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import com.example.ti.util.PreferenceWR;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
// import android.util.Log;
/**
* Service for managing connection and data communication with a GATT server
* hosted on a given Bluetooth LE device.
*/
public class BluetoothLeService extends Service {
static final String TAG = "BluetoothLeService";
public final static String ACTION_GATT_CONNECTED = "com.example.ti.ble.common.ACTION_GATT_CONNECTED";
public final static String ACTION_GATT_DISCONNECTED = "com.example.ti.ble.common.ACTION_GATT_DISCONNECTED";
public final static String ACTION_GATT_SERVICES_DISCOVERED = "com.example.ti.ble.common.ACTION_GATT_SERVICES_DISCOVERED";
public final static String ACTION_DATA_READ = "com.example.ti.ble.common.ACTION_DATA_READ";
public final static String ACTION_DATA_NOTIFY = "com.example.ti.ble.common.ACTION_DATA_NOTIFY";
public final static String ACTION_DATA_WRITE = "com.example.ti.ble.common.ACTION_DATA_WRITE";
public final static String EXTRA_DATA = "com.example.ti.ble.common.EXTRA_DATA";
public final static String EXTRA_UUID = "com.example.ti.ble.common.EXTRA_UUID";
public final static String EXTRA_STATUS = "com.example.ti.ble.common.EXTRA_STATUS";
public final static String EXTRA_ADDRESS = "com.example.ti.ble.common.EXTRA_ADDRESS";
public final static int GATT_TIMEOUT = 150;
// BLE
private BluetoothManager mBluetoothManager = null;
private BluetoothAdapter mBtAdapter = null;
private BluetoothGatt mBluetoothGatt = null;
private static BluetoothLeService mThis = null;
private String mBluetoothDeviceAddress;
private PreferenceWR mDevicePrefs = null;
public Timer disconnectionTimer;
private final Lock lock = new ReentrantLock();
private volatile boolean blocking = false;
private volatile int lastGattStatus = 0; //Success
private volatile bleRequest curBleRequest = null;
public enum bleRequestOperation {
wrBlocking,
wr,
rdBlocking,
rd,
nsBlocking,
}
public enum bleRequestStatus {
not_queued,
queued,
processing,
timeout,
done,
no_such_request,
failed,
}
public class bleRequest {
public int id;
public BluetoothGattCharacteristic characteristic;
public bleRequestOperation operation;
public volatile bleRequestStatus status;
public int timeout;
public int curTimeout;
public boolean notifyenable;
}
// Queuing for fast application response.
private volatile LinkedList<bleRequest> procQueue;
private volatile LinkedList<bleRequest> nonBlockQueue;
//
/**
* GATT client callbacks
*/
private BluetoothGattCallback mGattCallbacks = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status,
int newState) {
if (mBluetoothGatt == null) {
// Log.e(TAG, "mBluetoothGatt not created!");
return;
}
BluetoothDevice device = gatt.getDevice();
String address = device.getAddress();
// Log.d(TAG, "onConnectionStateChange (" + address + ") " + newState +
// " status: " + status);
try {
switch (newState) {
case BluetoothProfile.STATE_CONNECTED:
broadcastUpdate(ACTION_GATT_CONNECTED, address, status);
break;
case BluetoothProfile.STATE_DISCONNECTED:
broadcastUpdate(ACTION_GATT_DISCONNECTED, address, status);
break;
default:
// Log.e(TAG, "New state not processed: " + newState);
break;
}
} catch (NullPointerException e) {
e.printStackTrace();
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
BluetoothDevice device = gatt.getDevice();
broadcastUpdate(ACTION_GATT_SERVICES_DISCOVERED, device.getAddress(),
status);
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic) {
broadcastUpdate(ACTION_DATA_NOTIFY, characteristic,
BluetoothGatt.GATT_SUCCESS);
}
@Override
public void onCharacteristicRead(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic, int status) {
if (blocking)unlockBlockingThread(status);
if (nonBlockQueue.size() > 0) {
lock.lock();
for (int ii = 0; ii < nonBlockQueue.size(); ii++) {
bleRequest req = nonBlockQueue.get(ii);
if (req.characteristic == characteristic) {
req.status = bleRequestStatus.done;
nonBlockQueue.remove(ii);
break;
}
}
lock.unlock();
}
broadcastUpdate(ACTION_DATA_READ, characteristic, status);
}
@Override
public void onCharacteristicWrite(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic, int status) {
if (blocking)unlockBlockingThread(status);
if (nonBlockQueue.size() > 0) {
lock.lock();
for (int ii = 0; ii < nonBlockQueue.size(); ii++) {
bleRequest req = nonBlockQueue.get(ii);
if (req.characteristic == characteristic) {
req.status = bleRequestStatus.done;
nonBlockQueue.remove(ii);
break;
}
}
lock.unlock();
}
broadcastUpdate(ACTION_DATA_WRITE, characteristic, status);
}
@Override
public void onDescriptorRead(BluetoothGatt gatt,
BluetoothGattDescriptor descriptor, int status) {
if (blocking)unlockBlockingThread(status);
unlockBlockingThread(status);
}
@Override
public void onDescriptorWrite(BluetoothGatt gatt,
BluetoothGattDescriptor descriptor, int status) {
if (blocking)unlockBlockingThread(status);
// Log.i(TAG, "onDescriptorWrite: " + descriptor.getUuid().toString());
}
};
private void unlockBlockingThread(int status) {
this.lastGattStatus = status;
this.blocking = false;
}
private void broadcastUpdate(final String action, final String address,
final int status) {
final Intent intent = new Intent(action);
intent.putExtra(EXTRA_ADDRESS, address);
intent.putExtra(EXTRA_STATUS, status);
sendBroadcast(intent);
}
private void broadcastUpdate(final String action,
final BluetoothGattCharacteristic characteristic, final int status) {
final Intent intent = new Intent(action);
intent.putExtra(EXTRA_UUID, characteristic.getUuid().toString());
intent.putExtra(EXTRA_DATA, characteristic.getValue());
intent.putExtra(EXTRA_STATUS, status);
sendBroadcast(intent);
}
public boolean checkGatt() {
if (mBtAdapter == null) {
// Log.w(TAG, "BluetoothAdapter not initialized");
return false;
}
if (mBluetoothGatt == null) {
// Log.w(TAG, "BluetoothGatt not initialized");
return false;
}
if (this.blocking) {
Log.d(TAG,"Cannot start operation : Blocked");
return false;
}
return true;
}
/**
* Manage the BLE service
*/
public class LocalBinder extends Binder {
public BluetoothLeService getService() {
return BluetoothLeService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return binder;
}
@Override
public boolean onUnbind(Intent intent) {
// After using a given device, you should make sure that
// BluetoothGatt.close() is called
// such that resources are cleaned up properly. In this particular example,
// close() is
// invoked when the UI is disconnected from the Service.
close();
return super.onUnbind(intent);
}
private final IBinder binder = new LocalBinder();
/**
* Initializes a reference to the local Bluetooth adapter.
*
* @return Return true if the initialization is successful.
*/
public boolean initialize() {
// For API level 18 and above, get a reference to BluetoothAdapter through
// BluetoothManager.
mThis = this;
if (mBluetoothManager == null) {
mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (mBluetoothManager == null) {
// Log.e(TAG, "Unable to initialize BluetoothManager.");
return false;
}
}
mBtAdapter = mBluetoothManager.getAdapter();
if (mBtAdapter == null) {
// Log.e(TAG, "Unable to obtain a BluetoothAdapter.");
return false;
}
procQueue = new LinkedList<bleRequest>();
nonBlockQueue = new LinkedList<bleRequest>();
Thread queueThread = new Thread() {
@Override
public void run() {
while (true) {
executeQueue();
try {
Thread.sleep(0,100000);
}
catch (Exception e) {
e.printStackTrace();
}
}
}
};
queueThread.start();
return true;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// Log.i(TAG, "Received start id " + startId + ": " + intent);
// We want this service to continue running until it is explicitly
// stopped, so return sticky.
this.initialize();
return START_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
if (mBluetoothGatt != null) {
mBluetoothGatt.close();
mBluetoothGatt = null;
}
}
//
// GATT API
//
/**
* Request a read on a given {@code BluetoothGattCharacteristic}. The read
* result is reported asynchronously through the
* {@code BluetoothGattCallback#onCharacteristicRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int)}
* callback.
*
* @param characteristic
* The characteristic to read from.
*/
public int readCharacteristic(BluetoothGattCharacteristic characteristic) {
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.rdBlocking;
addRequestToQueue(req);
boolean finished = false;
while (!finished) {
bleRequestStatus stat = pollForStatusofRequest(req);
if (stat == bleRequestStatus.done) {
finished = true;
return 0;
}
else if (stat == bleRequestStatus.timeout) {
finished = true;
return -3;
}
}
return -2;
}
public int writeCharacteristic(
BluetoothGattCharacteristic characteristic, byte b) {
byte[] val = new byte[1];
val[0] = b;
characteristic.setValue(val);
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.wrBlocking;
addRequestToQueue(req);
boolean finished = false;
while (!finished) {
bleRequestStatus stat = pollForStatusofRequest(req);
if (stat == bleRequestStatus.done) {
finished = true;
return 0;
}
else if (stat == bleRequestStatus.timeout) {
finished = true;
return -3;
}
}
return -2;
}
public int writeCharacteristic(
BluetoothGattCharacteristic characteristic, byte[] b) {
characteristic.setValue(b);
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.wrBlocking;
addRequestToQueue(req);
boolean finished = false;
while (!finished) {
bleRequestStatus stat = pollForStatusofRequest(req);
if (stat == bleRequestStatus.done) {
finished = true;
return 0;
}
else if (stat == bleRequestStatus.timeout) {
finished = true;
return -3;
}
}
return -2;
}
public int writeCharacteristic(BluetoothGattCharacteristic characteristic) {
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.wrBlocking;
addRequestToQueue(req);
boolean finished = false;
while (!finished) {
bleRequestStatus stat = pollForStatusofRequest(req);
if (stat == bleRequestStatus.done) {
finished = true;
return 0;
}
else if (stat == bleRequestStatus.timeout) {
finished = true;
return -3;
}
}
return -2;
}
public boolean writeCharacteristicNonBlock(BluetoothGattCharacteristic characteristic) {
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.wr;
addRequestToQueue(req);
return true;
}
/**
* Retrieves the number of GATT services on the connected device. This should
* be invoked only after {@code BluetoothGatt#discoverServices()} completes
* successfully.
*
* @return A {@code integer} number of supported services.
*/
public int getNumServices() {
if (mBluetoothGatt == null)
return 0;
return mBluetoothGatt.getServices().size();
}
/**
* Retrieves a list of supported GATT services on the connected device. This
* should be invoked only after {@code BluetoothGatt#discoverServices()}
* completes successfully.
*
* @return A {@code List} of supported services.
*/
public List<BluetoothGattService> getSupportedGattServices() {
if (mBluetoothGatt == null)
return null;
return mBluetoothGatt.getServices();
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic
* Characteristic to act on.
* @param enabled
* If true, enable notification. False otherwise.
*/
public int setCharacteristicNotification(
BluetoothGattCharacteristic characteristic, boolean enable) {
bleRequest req = new bleRequest();
req.status = bleRequestStatus.not_queued;
req.characteristic = characteristic;
req.operation = bleRequestOperation.nsBlocking;
req.notifyenable = enable;
addRequestToQueue(req);
boolean finished = false;
while (!finished) {
bleRequestStatus stat = pollForStatusofRequest(req);
if (stat == bleRequestStatus.done) {
finished = true;
return 0;
}
else if (stat == bleRequestStatus.timeout) {
finished = true;
return -3;
}
}
return -2;
}
public boolean isNotificationEnabled(
BluetoothGattCharacteristic characteristic) {
if (characteristic == null) {
return false;
}
if (!checkGatt())
return false;
BluetoothGattDescriptor clientConfig = characteristic
.getDescriptor(GattInfo.CLIENT_CHARACTERISTIC_CONFIG);
if (clientConfig == null)
return false;
return clientConfig.getValue() == BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
}
/**
* Connects to the GATT server hosted on the Bluetooth LE device.
*
* @param address
* The device address of the destination device.
*
* @return Return true if the connection is initiated successfully. The
* connection result is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public boolean connect(final String address) {
if (mBtAdapter == null || address == null) {
// Log.w(TAG, "BluetoothAdapter not initialized or unspecified address.");
return false;
}
final BluetoothDevice device = mBtAdapter.getRemoteDevice(address);
this.mDevicePrefs = new PreferenceWR(device.getAddress(),this.getApplicationContext());
int connectionState = mBluetoothManager.getConnectionState(device,
BluetoothProfile.GATT);
if (connectionState == BluetoothProfile.STATE_DISCONNECTED) {
// Previously connected device. Try to reconnect.
if (mBluetoothDeviceAddress != null
&& address.equals(mBluetoothDeviceAddress) && mBluetoothGatt != null) {
// Log.d(TAG, "Re-use GATT connection");
if (mBluetoothGatt.connect()) {
return true;
} else {
// Log.w(TAG, "GATT re-connect failed.");
return false;
}
}
if (device == null) {
// Log.w(TAG, "Device not found. Unable to connect.");
return false;
}
// We want to directly connect to the device, so we are setting the
// autoConnect parameter to false.
// Log.d(TAG, "Create a new GATT connection.");
mBluetoothGatt = device.connectGatt(this, false, mGattCallbacks);
mBluetoothDeviceAddress = address;
} else {
// Log.w(TAG, "Attempt to connect in state: " + connectionState);
return false;
}
return true;
}
/**
* Disconnects an existing connection or cancel a pending connection. The
* disconnection result is reported asynchronously through the
* {@code BluetoothGattCallback#onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int)}
* callback.
*/
public void disconnect(String address) {
if (mBtAdapter == null) {
// Log.w(TAG, "disconnect: BluetoothAdapter not initialized");
return;
}
final BluetoothDevice device = mBtAdapter.getRemoteDevice(address);
int connectionState = mBluetoothManager.getConnectionState(device,
BluetoothProfile.GATT);
if (mBluetoothGatt != null) {
if (connectionState != BluetoothProfile.STATE_DISCONNECTED) {
mBluetoothGatt.disconnect();
} else {
// Log.w(TAG, "Attempt to disconnect in state: " + connectionState);
}
}
}
/**
* After using a given BLE device, the app must call this method to ensure
* resources are released properly.
*/
public void close() {
if (mBluetoothGatt != null) {
// Log.i(TAG, "close");
mBluetoothGatt.close();
mBluetoothGatt = null;
}
}
public int numConnectedDevices() {
int n = 0;
if (mBluetoothGatt != null) {
List<BluetoothDevice> devList;
devList = mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT);
n = devList.size();
}
return n;
}
//
// Utility functions
//
public static BluetoothGatt getBtGatt() {
return mThis.mBluetoothGatt;
}
public static BluetoothManager getBtManager() {
return mThis.mBluetoothManager;
}
public static BluetoothLeService getInstance() {
return mThis;
}
public void waitIdle(int timeout) {
while (timeout-- > 0) {
try {
Thread.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public boolean refreshDeviceCache(BluetoothGatt gatt){
try {
BluetoothGatt localBluetoothGatt = gatt;
Method localMethod = localBluetoothGatt.getClass().getMethod("refresh", new Class[0]);
if (localMethod != null) {
boolean bool = ((Boolean) localMethod.invoke(localBluetoothGatt, new Object[0])).booleanValue();
return bool;
}
}
catch (Exception localException) {
Log.e(TAG, "An exception occured while refreshing device");
}
return false;
}
public void timedDisconnect() {
disconnectTimerTask disconnectionTimerTask;
this.disconnectionTimer = new Timer();
disconnectionTimerTask = new disconnectTimerTask(this);
this.disconnectionTimer.schedule(disconnectionTimerTask, 20000);
}
public void abortTimedDisconnect() {
if (this.disconnectionTimer != null) {
this.disconnectionTimer.cancel();
}
}
class disconnectTimerTask extends TimerTask {
BluetoothLeService param;
public disconnectTimerTask(final BluetoothLeService param) {
this.param = param;
}
@Override
public void run() {
this.param.disconnect(mBluetoothDeviceAddress);
}
}
public boolean requestConnectionPriority(int connectionPriority) {
return this.mBluetoothGatt.requestConnectionPriority(connectionPriority);
}
public boolean addRequestToQueue(bleRequest req) {
lock.lock();
if (procQueue.peekLast() != null) {
req.id = procQueue.peek().id++;
}
else {
req.id = 0;
procQueue.add(req);
}
lock.unlock();
return true;
}
public bleRequestStatus pollForStatusofRequest(bleRequest req) {
lock.lock();
if (req == curBleRequest) {
bleRequestStatus stat = curBleRequest.status;
if (stat == bleRequestStatus.done) {
curBleRequest = null;
}
if (stat == bleRequestStatus.timeout) {
curBleRequest = null;
}
lock.unlock();
return stat;
}
else {
lock.unlock();
return bleRequestStatus.no_such_request;
}
}
private void executeQueue() {
// Everything here is done on the queue
lock.lock();
if (curBleRequest != null) {
Log.d(TAG, "executeQueue, curBleRequest running");
try {
curBleRequest.curTimeout++;
if (curBleRequest.curTimeout > GATT_TIMEOUT) {
curBleRequest.status = bleRequestStatus.timeout;
curBleRequest = null;
}
Thread.sleep(10, 0);
} catch (Exception e) {
e.printStackTrace();
}
lock.unlock();
return;
}
if (procQueue == null) {
lock.unlock();
return;
}
if (procQueue.size() == 0) {
lock.unlock();
return;
}
bleRequest procReq = procQueue.removeFirst();
switch (procReq.operation) {
case rd:
//Read, do non blocking read
break;
case rdBlocking:
//Normal (blocking) read
if (procReq.timeout == 0) {
procReq.timeout = GATT_TIMEOUT;
}
procReq.curTimeout = 0;
curBleRequest = procReq;
int stat = sendBlockingReadRequest(procReq);
if (stat == -2) {
Log.d(TAG,"executeQueue rdBlocking: error, BLE was busy or device disconnected");
lock.unlock();
return;
}
break;
case wr:
//Write, do non blocking write (Ex: OAD)
nonBlockQueue.add(procReq);
sendNonBlockingWriteRequest(procReq);
break;
case wrBlocking:
//Normal (blocking) write
if (procReq.timeout == 0) {
procReq.timeout = GATT_TIMEOUT;
}
curBleRequest = procReq;
stat = sendBlockingWriteRequest(procReq);
if (stat == -2) {
Log.d(TAG,"executeQueue wrBlocking: error, BLE was busy or device disconnected");
lock.unlock();
return;
}
break;
case nsBlocking:
if (procReq.timeout == 0) {
procReq.timeout = GATT_TIMEOUT;
}
curBleRequest = procReq;
stat = sendBlockingNotifySetting(procReq);
if (stat == -2) {
Log.d(TAG,"executeQueue nsBlocking: error, BLE was busy or device disconnected");
lock.unlock();
return;
}
break;
default:
break;
}
lock.unlock();
}
public int sendNonBlockingReadRequest(bleRequest request) {
request.status = bleRequestStatus.processing;
if (!checkGatt()) {
request.status = bleRequestStatus.failed;
return -2;
}
mBluetoothGatt.readCharacteristic(request.characteristic);
return 0;
}
public int sendNonBlockingWriteRequest(bleRequest request) {
request.status = bleRequestStatus.processing;
if (!checkGatt()) {
request.status = bleRequestStatus.failed;
return -2;
}
mBluetoothGatt.writeCharacteristic(request.characteristic);
return 0;
}
public int sendBlockingReadRequest(bleRequest request) {
request.status = bleRequestStatus.processing;
int timeout = 0;
if (!checkGatt()) {
request.status = bleRequestStatus.failed;
return -2;
}
mBluetoothGatt.readCharacteristic(request.characteristic);
this.blocking = true; // Set read to be blocking
while (this.blocking) {
timeout ++;
waitIdle(1);
if (timeout > GATT_TIMEOUT) {this.blocking = false; request.status = bleRequestStatus.timeout; return -1;} //Read failed TODO: Fix this to follow connection interval !
}
request.status = bleRequestStatus.done;
return lastGattStatus;
}
public int sendBlockingWriteRequest(bleRequest request) {
request.status = bleRequestStatus.processing;
int timeout = 0;
if (!checkGatt()) {
request.status = bleRequestStatus.failed;
return -2;
}
mBluetoothGatt.writeCharacteristic(request.characteristic);
this.blocking = true; // Set read to be blocking
while (this.blocking) {
timeout ++;
waitIdle(1);
if (timeout > GATT_TIMEOUT) {this.blocking = false; request.status = bleRequestStatus.timeout; return -1;} //Read failed TODO: Fix this to follow connection interval !
}
request.status = bleRequestStatus.done;
return lastGattStatus;
}
public int sendBlockingNotifySetting(bleRequest request) {
request.status = bleRequestStatus.processing;
int timeout = 0;
if (request.characteristic == null) {
return -1;
}
if (!checkGatt())
return -2;
if (mBluetoothGatt.setCharacteristicNotification(request.characteristic, request.notifyenable)) {
BluetoothGattDescriptor clientConfig = request.characteristic
.getDescriptor(GattInfo.CLIENT_CHARACTERISTIC_CONFIG);
if (clientConfig != null) {
if (request.notifyenable) {
// Log.i(TAG, "Enable notification: " +
// characteristic.getUuid().toString());
clientConfig
.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
} else {
// Log.i(TAG, "Disable notification: " +
// characteristic.getUuid().toString());
clientConfig
.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
}
mBluetoothGatt.writeDescriptor(clientConfig);
// Log.i(TAG, "writeDescriptor: " +
// characteristic.getUuid().toString());
this.blocking = true; // Set read to be blocking
while (this.blocking) {
timeout ++;
waitIdle(1);
if (timeout > GATT_TIMEOUT) {this.blocking = false; request.status = bleRequestStatus.timeout; return -1;} //Read failed TODO: Fix this to follow connection interval !
}
request.status = bleRequestStatus.done;
return lastGattStatus;
}
}
return -3; // Set notification to android was wrong ...
}
public String getConnectedDeviceAddress() {
return this.mBluetoothDeviceAddress;
}
}
