private void setConnectionParameters() {
// Make sure connection interval is long enough for OAD
byte[] value = {
Conversion.loUint16(OAD_CONN_INTERVAL),
Conversion.hiUint16(OAD_CONN_INTERVAL),
Conversion.loUint16(OAD_CONN_INTERVAL),
Conversion.hiUint16(OAD_CONN_INTERVAL),
0,
0,
Conversion.loUint16(OAD_SUPERVISION_TIMEOUT),
Conversion.hiUint16(OAD_SUPERVISION_TIMEOUT)
};
mCharConnReq.setValue(value);
boolean ok = mLeService.writeCharacteristic(mCharConnReq);
if (ok) ok = mLeService.waitIdle(GATT_WRITE_TIMEOUT);
}
private void startProgramming() {
mLog.append("Programming started\n");
mProgramming = true;
updateGui();
// Prepare image notification
byte[] buf = new byte[OAD_IMG_HDR_SIZE + 2 + 2];
buf[0] = Conversion.loUint16(mFileImgHdr.ver);
buf[1] = Conversion.hiUint16(mFileImgHdr.ver);
buf[2] = Conversion.loUint16(mFileImgHdr.len);
buf[3] = Conversion.hiUint16(mFileImgHdr.len);
System.arraycopy(mFileImgHdr.uid, 0, buf, 4, 4);
// Send image notification
mCharIdentify.setValue(buf);
mLeService.writeCharacteristic(mCharIdentify);
// Initialize stats
mProgInfo.reset();
// Start the packet timer
mTimer = null;
mTimer = new Timer();
mTimerTask = new ProgTimerTask();
mTimer.scheduleAtFixedRate(mTimerTask, 0, PKT_INTERVAL);
}
private void onBlockTimer() {
if (mProgInfo.iBlocks < mProgInfo.nBlocks) {
mProgramming = true;
// Prepare block
mOadBuffer[0] = Conversion.loUint16(mProgInfo.iBlocks);
mOadBuffer[1] = Conversion.hiUint16(mProgInfo.iBlocks);
System.arraycopy(mFileBuffer, mProgInfo.iBytes, mOadBuffer, 2, OAD_BLOCK_SIZE);
// Send block
mCharBlock.setValue(mOadBuffer);
boolean success = mLeService.writeCharacteristic(mCharBlock);
if (success) {
// Update stats
mProgInfo.iBlocks++;
mProgInfo.iBytes += OAD_BLOCK_SIZE;
mProgressBar.setProgress((mProgInfo.iBlocks * 100) / mProgInfo.nBlocks);
} else {
// Check if the device has been prematurely disconnected
if (BluetoothLeService.getBtGatt() == null) mProgramming = false;
}
} else {
mProgramming = false;
}
mProgInfo.iTimeElapsed += PKT_INTERVAL;
if (!mProgramming) {
runOnUiThread(
new Runnable() {
public void run() {
displayStats();
stopProgramming();
}
});
}
}
public FwUpdateActivity() {
Log.d(TAG, "construct");
mDeviceActivity = DeviceActivity.getInstance();
// BLE Gatt Service
mLeService = BluetoothLeService.getInstance();
// Service information
mOadService = mDeviceActivity.getOadService();
mConnControlService = mDeviceActivity.getConnControlService();
// Characteristics list
mCharListOad = mOadService.getCharacteristics();
mCharListCc = mConnControlService.getCharacteristics();
mServiceOk = mCharListOad.size() == 2 && mCharListCc.size() >= 3;
if (mServiceOk) {
mCharIdentify = mCharListOad.get(0);
mCharBlock = mCharListOad.get(1);
mCharConnReq = mCharListCc.get(1);
}
}
private boolean enableNotification(BluetoothGattCharacteristic c, boolean enable) {
boolean ok = mLeService.setCharacteristicNotification(c, enable);
if (ok) ok = mLeService.waitIdle(GATT_WRITE_TIMEOUT);
return ok;
}
private boolean writeCharacteristic(BluetoothGattCharacteristic c, byte v) {
boolean ok = mLeService.writeCharacteristic(c, v);
if (ok) ok = mLeService.waitIdle(GATT_WRITE_TIMEOUT);
return ok;
}