Beispiel #1
0
            public override void DoRun()
            {
                byte[] dataReceived = null;

                int numberBytes;

                if (inEndpoint != null)
                {
                    numberBytes = device.connection.BulkTransfer(inEndpoint, device.serialBuffer.GetBufferCompatible(),
                                                                 SerialBuffer.DEFAULT_READ_BUFFER_SIZE, 0);
                }
                else
                {
                    numberBytes = 0;
                }

                if (numberBytes > 0)
                {
                    dataReceived = device.serialBuffer.GetDataReceivedCompatible(numberBytes);

                    // FTDI devices reserve two first bytes of an IN endpoint with info about
                    // modem and Line.
                    if (device.IsFTDIDevice())
                    {
                        ((FTDISerialDevice)device).ftdiUtilities.CheckModemStatus(dataReceived);

                        if (dataReceived.Length > 2)
                        {
                            dataReceived = FTDISerialDevice.AdaptArray(dataReceived);
                            OnReceivedData(dataReceived);
                        }
                    }
                    else
                    {
                        OnReceivedData(dataReceived);
                    }
                }
            }
Beispiel #2
0
            public override void DoRun()
            {
                UsbRequest request = null;

                /**
                 * blocking call on usb device.
                 * Make sure for UsbRequest object RequestWait and Queue functions do not deadlock from different threads
                 **/

                //request = device.connection.RequestWait();
                if (!isSpecialCase)
                {
                    try
                    {
                        request = device.connection.RequestWait(2000);  //blocking call on usbdevice with optional timeout
                    }
                    catch (Java.Lang.NoSuchMethodError)
                    {
                        isSpecialCase = true;
                        Log.Error("com.felhr.usbserial.UsbSerialDevice.WorkerThread.DoRun", "Exception at RequestWait(): Special Case");
                    }
                    catch (Java.Util.Concurrent.TimeoutException)
                    {
                        /*do nothing and continue*/
                    }
                }
                else
                {
                    try
                    {
                        request = device.connection.RequestWait();  //blocking call on usbdevice
                    }
                    catch (Java.Lang.Exception)
                    {
                        /*do nothing and continue*/
                        Log.Error("com.felhr.usbserial.UsbSerialDevice.WorkerThread.DoRun", "Exception at RequestWait()");
                    }
                }

                if (request?.Endpoint.Type == UsbAddressing.XferBulk &&
                    request.Endpoint.Direction == UsbAddressing.In)
                {
                    byte[] data = device.serialBuffer.GetDataReceived();

                    // FTDI devices reserves two first bytes of an IN endpoint with info about
                    // modem and Line.
                    if (device.IsFTDIDevice())
                    {
                        ((FTDISerialDevice)device).ftdiUtilities.CheckModemStatus(data); //Check the Modem status
                        device.serialBuffer.ClearReadBuffer();

                        if (data.Length > 2)
                        {
                            data = FTDISerialDevice.AdaptArray(data);
                            OnReceivedData(data);
                        }
                    }
                    else
                    {
                        // Clear buffer, execute the callback
                        device.serialBuffer.ClearReadBuffer();
                        OnReceivedData(data);
                    }

                    if (debugging && !(data.Length <= 2 && device.IsFTDIDevice()))
                    {
                        UsbSerialDebugger.PrintReadLogGet(data, true);
                    }

                    // Queue a new request
                    //System.Threading.Thread.Sleep(10);

                    if (isAPI26Version) //required check for Java.Lang.NoSuchMethodError thrown for some manufacturers on Queue(buffer); deprecation of Queue(buffer, size) since API 26
                    {
                        requestIN?.Queue(device.serialBuffer.GetReadBuffer());
                    }
                    else
                    {
                        requestIN?.Queue(device.serialBuffer.GetReadBuffer(), SerialBuffer.DEFAULT_READ_BUFFER_SIZE);      //blocking call on usbdevice
                    }
                }
            }
Beispiel #3
0
 public FTDIUtilities(FTDISerialDevice fTDIdevice)
 {
     this.fTDISerialDevice = fTDIdevice;
 }