Example #1
0
        /// <summary>
        /// This method sends a KWPRequest and returns a KWPReply.
        /// </summary>
        /// <param name="a_request">The request.</param>
        /// <param name="a_reply">The reply.</param>
        /// <returns>KWPResult</returns>
        private KWPResult sendRequest(KWPRequest a_request, out KWPReply a_reply, int expectedLength)
        {
            int       _maxSendRetries = 3;
            KWPResult _kwpResult      = KWPResult.Timeout;

            LogDataString("sendRequest");

            KWPReply      reply = new KWPReply();
            RequestResult result;

            a_reply = new KWPReply();
            //<GS-11012010> was allemaal 1000
            int keepAliveTimeout = 1000;

            //Console.WriteLine("Checking KWP device open");
            if (!m_kwpDevice.isOpen())
            {
                return(KWPResult.DeviceNotConnected);
            }

            // reset the timer for keep alive (set to 1 seconds now)
            if (stateTimer == null)
            {
                stateTimer = new System.Threading.Timer(sendKeepAlive, new Object(), keepAliveTimeout, keepAliveTimeout);
            }
            stateTimer.Change(keepAliveTimeout, keepAliveTimeout);

            m_requestMutex.WaitOne();
            int _retryCount = 0;

            result = RequestResult.Unknown; // <GS-11022010>
            while (_retryCount < _maxSendRetries && result != RequestResult.NoError)
            {
                LogDataString(a_request.ToString());
                result = m_kwpDevice.sendRequest(a_request, out reply);
                if ((int)reply.getLength() != expectedLength)
                {
                    result = RequestResult.InvalidLength;
                }
                if (result == RequestResult.NoError)
                {
                    a_reply = reply;
                    LogDataString(reply.ToString());
                    LogDataString(""); // empty line
                    m_requestMutex.ReleaseMutex();
                    //return KWPResult.OK;
                    _kwpResult = KWPResult.OK;
                }
                else
                {
                    LogDataString("Timeout in KWPHandler::sendRequest");
                    m_requestMutex.ReleaseMutex();
                    //return KWPResult.Timeout;
                    _kwpResult = KWPResult.Timeout;
                }
            }
            return(_kwpResult);
        }
Example #2
0
        /// <summary>
        /// Send a request for a sequrity access with one out of two methods to
        /// calculate the key.
        /// </summary>
        /// <param name="a_method">Key calculation method [1,2]</param>
        /// <returns>true if sequrity access was granted, otherwise false</returns>
        private bool requestSequrityAccessLevel(uint a_method)
        {
            LogDataString("requestSequrityAccessLevel: " + a_method.ToString());
            KWPReply  reply = new KWPReply();
            KWPResult result;

            byte[] seed = new byte[2];
            byte[] key  = new byte[2];
            // Send a seed request.
            KWPRequest requestForKey = new KWPRequest(0x27, 0x05);

            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " request for key: " + requestForKey.ToString());
            result = sendRequest(requestForKey, out reply);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " request for key result: " + reply.ToString());

            if (result != KWPResult.OK)
            {
                return(false);
            }
            if (reply.getData().Length < 2)
            {
                return(false);
            }
            seed[0] = reply.getData()[0];
            seed[1] = reply.getData()[1];
            if (a_method == 1)
            {
                key = calculateKey(seed, 0);
            }
            else
            {
                key = calculateKey(seed, 1);
            }
            // Send key reply.
            KWPRequest sendKeyRequest = new KWPRequest(0x27, 0x06, key);

            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " send Key request: " + sendKeyRequest.ToString());
            result = sendRequest(sendKeyRequest, out reply);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " send Key reply: " + reply.ToString());
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Security access request was not send");
                return(false);
            }

            //Check if sequrity was granted.
            Console.WriteLine("Mode: " + reply.getMode().ToString("X2"));
            Console.WriteLine("Data: " + reply.getData()[0].ToString("X2"));
            if ((reply.getMode() == 0x67) && (reply.getData()[0] == 0x34)) // WAS [0]
            {
                Console.WriteLine("Security access granted: " + a_method.ToString());
                return(true);
            }

            Console.WriteLine("Security access was not granted: " + reply.ToString());
            return(false);
        }
Example #3
0
        /// <summary>
        /// Send a KWP request.
        /// </summary>
        /// <param name="a_request">A KWP request.</param>
        /// <param name="r_reply">A KWP reply.</param>
        /// <returns>The status of the request.</returns>
        public RequestResult sendRequest(KWPRequest a_request, out KWPReply r_reply)
        {
            CANMessage msg = new CANMessage(0x240, 0, 8);
            uint       row = nrOfRowsToSend(a_request.getData());

            // Send one or several request messages.
            for (; row > 0; row--)
            {
                msg.setData(createCanMessage(a_request.getData(), row - 1));
                if (!m_canDevice.sendMessage(msg))
                {
                    r_reply = new KWPReply();
                    return(RequestResult.ErrorSending);
                }
            }
            msg = m_kwpCanListener.waitForMessage(0x258, timeoutPeriod);
            // Receive one or several replys and send an ack for each reply.
            if (msg.getID() == 0x258)
            {
                uint nrOfRows = (uint)(msg.getCanData(0) & 0x3F) + 1;
                row = 0;
                if (nrOfRows == 0)
                {
                    throw new Exception("Wrong nr of rows");
                }
                //Assume that no KWP reply contains more than 0x200 bytes
                byte[] reply = new byte[0x200];
                reply = collectReply(reply, msg.getData(), row);
                sendAck(nrOfRows - 1);
                nrOfRows--;
                while (nrOfRows > 0)
                {
                    msg = m_kwpCanListener.waitForMessage(0x258, timeoutPeriod);
                    if (msg.getID() == 0x258)
                    {
                        row++;
                        reply = collectReply(reply, msg.getData(), row);
                        sendAck(nrOfRows - 1);
                        nrOfRows--;
                    }
                    else
                    {
                        r_reply = new KWPReply();
                        return(RequestResult.Timeout);
                    }
                }
                r_reply = new KWPReply(reply, a_request.getNrOfPID());
                return(RequestResult.NoError);
            }
            else
            {
                r_reply = new KWPReply();
                return(RequestResult.Timeout);
            }
        }
Example #4
0
        /// <summary>
        /// This method writes to a symbol in RAM.
        /// The ECU must not be write protected for this to work.
        /// </summary>
        /// <param name="a_symbolNumber">Symbol number to write to.</param>
        /// <param name="a_data">Data to write.</param>
        /// <returns></returns>
        public bool writeSymbolRequest(uint a_symbolNumber, byte[] a_data)
        {
            LogDataString("writeSymbolRequest: " + a_symbolNumber.ToString());

            KWPReply  reply = new KWPReply();
            KWPResult result;
            int       LengthToTx = a_data.Length;

            if (LengthToTx > 0x41)
            {
                LengthToTx = 0x41;                    // FA
            }
            byte[] symbolNumberAndData = new byte[3 + /*a_data.Length*/ LengthToTx];
            //First two bytes should be the symbol number
            symbolNumberAndData[0] = (byte)(a_symbolNumber >> 8);
            symbolNumberAndData[1] = (byte)(a_symbolNumber);
            symbolNumberAndData[2] = (byte)(0);
            // len len
            // adr adr adr

            for (int i = 0; i < /*a_data.Length*/ LengthToTx; i++)
            {
                symbolNumberAndData[i + 3] = a_data[i];
            }

            string requestString = "RequestString: ";

            foreach (byte b in symbolNumberAndData)
            {
                requestString += b.ToString("X2") + " ";
            }
            Console.WriteLine(requestString);
            // end dump to console
            Console.WriteLine("SymbolNumberAndData length: " + symbolNumberAndData.Length.ToString("X8"));
            KWPRequest t_request = new KWPRequest(0x3D, 0x80, symbolNumberAndData);

            Console.WriteLine(t_request.ToString());
            result = sendRequest(t_request, out reply);
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Result != KWPResult.OK");
                return(false);
            }
            Console.WriteLine("Result = " + reply.getData()[0].ToString("X2"));
            Console.WriteLine("Resulttotal = " + reply.ToString());
            if (reply.getData()[0] == 0x7D)
            {
                return(true);
            }
            else
            {
                return(false);
            }
        }
Example #5
0
        /// <summary>
        /// This method writes to a symbol in RAM.
        /// The ECU must not be write protected for this to work.
        /// </summary>
        /// <param name="a_symbolNumber">Symbol number to write to.</param>
        /// <param name="a_data">Data to write.</param>
        /// <returns></returns>
        public bool writeSymbolRequestAddress(uint a_address, byte[] a_data)
        {
            LogDataString("writeSymbolRequest: " + a_address.ToString("X8") + "len: " + a_data.Length.ToString("X4"));

            KWPReply  reply = new KWPReply();
            KWPResult result;

            byte[] symbolNumberAndData = new byte[4 + a_data.Length];
            //symbolNumberAndData[0] = (byte)(a_address >> 24);
            symbolNumberAndData[0] = (byte)(a_address >> 16);
            symbolNumberAndData[1] = (byte)(a_address >> 8);
            symbolNumberAndData[2] = (byte)(a_address);
            symbolNumberAndData[3] = (byte)(a_data.Length);
            // len len
            // adr adr adr

            for (int i = 0; i < a_data.Length; i++)
            {
                symbolNumberAndData[i + 4] = a_data[i];
            }

            string requestString = "RequestString: ";

            foreach (byte b in symbolNumberAndData)
            {
                requestString += b.ToString("X2") + " ";
            }
            Console.WriteLine(requestString);
            // end dump to console
            Console.WriteLine("SymbolNumberAndData length: " + symbolNumberAndData.Length.ToString("X8"));
            KWPRequest t_request = new KWPRequest(0x3D, /*0x81, */ symbolNumberAndData);

            Console.WriteLine(t_request.ToString());
            result = sendRequest(t_request, out reply);
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Result != KWPResult.OK");
                return(false);
            }
            Console.WriteLine("Result = " + reply.getData()[0].ToString("X2"));
            Console.WriteLine("Result-total = " + reply.ToString());
            if (reply.getData()[0] == 0x7D)
            {
                return(true);
            }
            else
            {
                return(false);
            }
        }
Example #6
0
        /// <summary>
        /// This method sends a KWPRequest and returns a KWPReply.
        /// </summary>
        /// <param name="a_request">The request.</param>
        /// <param name="a_reply">The reply.</param>
        /// <returns>KWPResult</returns>
        private KWPResult sendRequest(KWPRequest a_request, out KWPReply a_reply)
        {
            LogDataString("sendRequest");

            KWPReply      reply = new KWPReply();
            RequestResult result;

            a_reply = new KWPReply();
            //<GS-11012010> was allemaal 1000
            int keepAliveTimeout = 1000;

            //Console.WriteLine("Checking KWP device open");
            if (!m_kwpDevice.isOpen())
            {
                return(KWPResult.DeviceNotConnected);
            }

            // reset the timer for keep alive (set to 1 seconds now)
            if (stateTimer == null)
            {
                stateTimer = new System.Threading.Timer(sendKeepAlive, new Object(), keepAliveTimeout, keepAliveTimeout);
            }
            stateTimer.Change(keepAliveTimeout, keepAliveTimeout);

            m_requestMutex.WaitOne();

            LogDataString(a_request.ToString());

            result  = m_kwpDevice.sendRequest(a_request, out reply);
            a_reply = reply;
            if (result == RequestResult.NoError)
            {
                LogDataString(reply.ToString());
                LogDataString(""); // empty line

                m_requestMutex.ReleaseMutex();
                return(KWPResult.OK);
            }
            else
            {
                LogDataString("Timeout in KWPHandler::sendRequest: " + result.ToString());
                Console.WriteLine("Timeout in KWPHandler::sendRequest: " + result.ToString());
                m_requestMutex.ReleaseMutex();
                return(KWPResult.Timeout);
            }
        }
Example #7
0
        public bool ClearDTCCodes()
        {
            LogDataString("ClearDTCCodes");
            KWPReply  reply = new KWPReply();
            KWPResult result;

            byte[] data = new byte[1];
            data[0] = (byte)0xFF;
            //data[1] = (byte)0xFF;
            //data[2] = (byte)0x00;
            KWPRequest req = new KWPRequest(0x14, 0xFF, data);

            Console.WriteLine(req.ToString());
            result = sendRequest(req, out reply);
            Console.WriteLine(reply.ToString());
            return(true);
        }
Example #8
0
        public bool ClearDTCCode(int dtccode)
        {
            LogDataString("ClearDTCCode: " + dtccode.ToString("X4"));
            KWPReply  reply = new KWPReply();
            KWPResult result;

            byte[] data = new byte[1];
            data[0] = (byte)(dtccode & 0x00FF);
            //data[1] = (byte)0xFF;
            //data[2] = (byte)0x00;
            KWPRequest req = new KWPRequest(0x14, (byte)(dtccode >> 8), data);

            Console.WriteLine(req.ToString());
            result = sendRequest(req, out reply);
            Console.WriteLine(reply.ToString());
            return(true);
        }
Example #9
0
        public bool ReadFreezeFrameData(uint frameNumber)
        {
            LogDataString("ReadFreezeFrameData");
            KWPReply  reply = new KWPReply();
            KWPResult result;

            byte[] data = new byte[1];
            data[0] = (byte)0x00;
            //data[1] = (byte)0x00;
            //data[2] = (byte)0x00;
            KWPRequest req = new KWPRequest(0x12, Convert.ToByte(frameNumber), data);

            Console.WriteLine(req.ToString());
            result = sendRequest(req, out reply);
            Console.WriteLine(reply.ToString());
            return(true);
        }
Example #10
0
        /// <summary>
        /// Send a request for a sequrity access with one out of two methods to 
        /// calculate the key.
        /// </summary>
        /// <param name="a_method">Key calculation method [1,2]</param>
        /// <returns>true if sequrity access was granted, otherwise false</returns>
        private bool requestSequrityAccessLevel(uint a_method)
        {
            LogDataString("requestSequrityAccessLevel: " + a_method.ToString());
            KWPReply reply = new KWPReply();
            KWPResult result;
            byte[] seed = new byte[2];
            byte[] key = new byte[2];
            // Send a seed request.
            KWPRequest requestForKey = new KWPRequest(0x27, 0x05);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() +  " request for key: " + requestForKey.ToString());
            result = sendRequest(requestForKey, out reply);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " request for key result: " + reply.ToString());

            if (result != KWPResult.OK)
                return false;
            if (reply.getData().Length < 2)
                return false;
            seed[0] = reply.getData()[0];
            seed[1] = reply.getData()[1];
            if (a_method == 1)
                key = calculateKey(seed, 0);
            else
                key = calculateKey(seed, 1);
            // Send key reply.
            KWPRequest sendKeyRequest = new KWPRequest(0x27, 0x06, key);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() +  " send Key request: " + sendKeyRequest.ToString());
            result = sendRequest(sendKeyRequest, out reply);
            Console.WriteLine("requestSequrityAccessLevel " + a_method.ToString() + " send Key reply: " + reply.ToString());
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Security access request was not send");
                return false;
            }

            //Check if sequrity was granted.
            Console.WriteLine("Mode: " + reply.getMode().ToString("X2"));
            Console.WriteLine("Data: " + reply.getData()[0].ToString("X2"));
            if ((reply.getMode() == 0x67) && (reply.getData()[0] == 0x34)) // WAS [0]
            {
                Console.WriteLine("Security access granted: " + a_method.ToString());
                return true;
            }

            Console.WriteLine("Security access was not granted: " + reply.ToString());
            return false;
        }
Example #11
0
        /// <summary>
        /// This method writes to a symbol in RAM.
        /// The ECU must not be write protected for this to work.
        /// </summary>
        /// <param name="a_symbolNumber">Symbol number to write to.</param>
        /// <param name="a_data">Data to write.</param> 
        /// <returns></returns>
        public bool writeSymbolRequestTest(uint a_symbolNumber, byte[] a_data, int idx)
        {
            LogDataString("writeSymbolRequest: " + a_symbolNumber.ToString());

            KWPReply reply = new KWPReply();
            KWPResult result;
            int LengthToTx = a_data.Length;
            if (LengthToTx > 0x41) LengthToTx = 0x41; // FA
            byte[] symbolNumberAndData = new byte[3 + /*a_data.Length*/ LengthToTx];
            //First two bytes should be the symbol number
            symbolNumberAndData[0] = (byte)(a_symbolNumber >> 8);
            symbolNumberAndData[1] = (byte)(a_symbolNumber);
            symbolNumberAndData[2] = (byte)(0);
            // len len
            // adr adr adr

            for (int i = 0; i < /*a_data.Length*/ LengthToTx; i++)
                symbolNumberAndData[i + 3] = a_data[i];

            string requestString = "RequestString: ";
            foreach (byte b in symbolNumberAndData)
            {
                requestString += b.ToString("X2") + " ";
            }
            Console.WriteLine(requestString);
            // end dump to console
            Console.WriteLine("SymbolNumberAndData length: " + symbolNumberAndData.Length.ToString("X8"));
            KWPRequest t_request = new KWPRequest(0x3D, 0x80, symbolNumberAndData);
            Console.WriteLine(t_request.ToString());
            result = sendRequest(t_request, out reply);
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Result != KWPResult.OK");
                return false;
            }
            Console.WriteLine("Result = " + reply.getData()[0].ToString("X2"));
            if (reply.getData()[0] == 0x7D)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
Example #12
0
        /// <summary>
        /// This method writes to a symbol in RAM.
        /// The ECU must not be write protected for this to work.
        /// </summary>
        /// <param name="a_symbolNumber">Symbol number to write to.</param>
        /// <param name="a_data">Data to write.</param> 
        /// <returns></returns>
        public bool writeSymbolRequestAddress(uint a_address, byte[] a_data)
        {
            LogDataString("writeSymbolRequest: " + a_address.ToString("X8") + "len: " + a_data.Length.ToString("X4"));

            KWPReply reply = new KWPReply();
            KWPResult result;
            byte[] symbolNumberAndData = new byte[4 + a_data.Length];
            //symbolNumberAndData[0] = (byte)(a_address >> 24);
            symbolNumberAndData[0] = (byte)(a_address >> 16);
            symbolNumberAndData[1] = (byte)(a_address >> 8);
            symbolNumberAndData[2] = (byte)(a_address);
            symbolNumberAndData[3] = (byte)(a_data.Length);
            // len len
            // adr adr adr

            for (int i = 0; i < a_data.Length; i++)
                symbolNumberAndData[i + 4] = a_data[i];

            string requestString = "RequestString: ";
            foreach (byte b in symbolNumberAndData)
            {
                requestString += b.ToString("X2") + " ";
            }
            Console.WriteLine(requestString);
            // end dump to console
            Console.WriteLine("SymbolNumberAndData length: " + symbolNumberAndData.Length.ToString("X8"));
            KWPRequest t_request = new KWPRequest(0x3D, /*0x81, */symbolNumberAndData);
            Console.WriteLine(t_request.ToString());
            result = sendRequest(t_request, out reply);
            if (result != KWPResult.OK)
            {
                Console.WriteLine("Result != KWPResult.OK");
                return false;
            }
            Console.WriteLine("Result = " + reply.getData()[0].ToString("X2"));
            Console.WriteLine("Result-total = " + reply.ToString());
            if (reply.getData()[0] == 0x7D)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
Example #13
0
 public bool ReadFreezeFrameData(uint frameNumber)
 {
     LogDataString("ReadFreezeFrameData");
     KWPReply reply = new KWPReply();
     KWPResult result;
     byte[] data = new byte[1];
     data[0] = (byte)0x00;
     //data[1] = (byte)0x00;
     //data[2] = (byte)0x00;
     KWPRequest req = new KWPRequest(0x12, Convert.ToByte(frameNumber), data);
     Console.WriteLine(req.ToString());
     result = sendRequest(req, out reply);
     Console.WriteLine(reply.ToString());
     return true;
 }
Example #14
0
 public bool ReadDTCCodes()
 {
     LogDataString("ReadDTCCodes");
     KWPReply reply = new KWPReply();
     KWPResult result;
     byte[] data = new byte[2];
     data[0] = (byte)0xFF;
     data[1] = (byte)0xFF;
     //data[2] = (byte)0x00;
     KWPRequest req = new KWPRequest(0x18, 0x02/*, data*/);
     Console.WriteLine(req.ToString());
     result = sendRequest(req, out reply);
     Console.WriteLine(reply.ToString());
     return true;
 }
Example #15
0
 public bool ClearDTCCode(int dtccode)
 {
     LogDataString("ClearDTCCode: " + dtccode.ToString("X4"));
     KWPReply reply = new KWPReply();
     KWPResult result;
     byte[] data = new byte[1];
     data[0] = (byte)(dtccode & 0x00FF);
     //data[1] = (byte)0xFF;
     //data[2] = (byte)0x00;
     KWPRequest req = new KWPRequest(0x14, (byte)(dtccode >> 8), data);
     Console.WriteLine(req.ToString());
     result = sendRequest(req, out reply);
     Console.WriteLine(reply.ToString());
     return true;
 }
Example #16
0
        /// <summary>
        /// This method sends a KWPRequest and returns a KWPReply.
        /// </summary>
        /// <param name="a_request">The request.</param>
        /// <param name="a_reply">The reply.</param>
        /// <returns>KWPResult</returns>
        private KWPResult sendRequest(KWPRequest a_request, out KWPReply a_reply)
        {
            LogDataString("sendRequest");

            KWPReply reply = new KWPReply();
            RequestResult result;
            a_reply = new KWPReply();
            //<GS-11012010> was allemaal 1000
            int keepAliveTimeout = 1000;
            //Console.WriteLine("Checking KWP device open");
            if (!m_kwpDevice.isOpen())
                return KWPResult.DeviceNotConnected;

            // reset the timer for keep alive (set to 1 seconds now)
            if (stateTimer == null)
                stateTimer = new System.Threading.Timer(sendKeepAlive, new Object(), keepAliveTimeout, keepAliveTimeout);
            stateTimer.Change(keepAliveTimeout, keepAliveTimeout);

            m_requestMutex.WaitOne();

            LogDataString(a_request.ToString());

            result = m_kwpDevice.sendRequest(a_request, out reply);
            a_reply = reply;
            if (result == RequestResult.NoError)
            {
                LogDataString(reply.ToString());
                LogDataString(""); // empty line

                m_requestMutex.ReleaseMutex();
                return KWPResult.OK;
            }
            else
            {
                LogDataString("Timeout in KWPHandler::sendRequest: " + result.ToString());
                Console.WriteLine("Timeout in KWPHandler::sendRequest: " + result.ToString());
                m_requestMutex.ReleaseMutex();
                return KWPResult.Timeout;
            }
        }
Example #17
0
        /// <summary>
        /// Send a KWP request.
        /// </summary>
        /// <param name="a_request">A KWP request.</param>
        /// <param name="r_reply">A KWP reply.</param>
        /// <returns>The status of the request.</returns>
        public RequestResult sendRequest(KWPRequest a_request, out KWPReply r_reply)
        {
            CANMessage msg = new CANMessage(0x240, 0, 8);
            uint row = nrOfRowsToSend(a_request.getData());
            // Send one or several request messages.
            for (; row > 0; row--)
            {
                msg.setData(createCanMessage(a_request.getData(), row - 1));
                if (!m_canDevice.sendMessage(msg))
                {
                    r_reply = new KWPReply();
                    return RequestResult.ErrorSending;
                }
            }
            msg = m_kwpCanListener.waitForMessage(0x258, timeoutPeriod);
            // Receive one or several replys and send an ack for each reply.
            if (msg.getID() == 0x258)
            {
                uint nrOfRows = (uint)(msg.getCanData(0) & 0x3F)+ 1;
                row = 0;
                if (nrOfRows == 0)
                    throw new Exception("Wrong nr of rows");
                //Assume that no KWP reply contains more than 0x200 bytes
                byte[] reply = new byte[0x200];
                reply = collectReply(reply, msg.getData(), row);
                sendAck(nrOfRows - 1);
                nrOfRows--;
                while (nrOfRows > 0)
                {
                    msg = m_kwpCanListener.waitForMessage(0x258, timeoutPeriod);
                    if (msg.getID() == 0x258)
                    {
                        row++;
                        reply = collectReply(reply, msg.getData(), row);
                        sendAck(nrOfRows - 1);
                        nrOfRows--;
                    }
                    else
                    {
                        r_reply = new KWPReply();
                        return RequestResult.Timeout;
                    }

                }
                r_reply = new KWPReply(reply, a_request.getNrOfPID());
                return RequestResult.NoError;
            }
            else
            {
                r_reply = new KWPReply();
                return RequestResult.Timeout;
            }
        }
Example #18
0
        /// <summary>
        /// This method sends a KWPRequest and returns a KWPReply.
        /// </summary>
        /// <param name="a_request">The request.</param>
        /// <param name="a_reply">The reply.</param>
        /// <returns>KWPResult</returns>
        private KWPResult sendRequest(KWPRequest a_request, out KWPReply a_reply, int expectedLength)
        {
            int _maxSendRetries = 3;
            KWPResult _kwpResult = KWPResult.Timeout;
            LogDataString("sendRequest");

            KWPReply reply = new KWPReply();
            RequestResult result;
            a_reply = new KWPReply();
            //<GS-11012010> was allemaal 1000
            int keepAliveTimeout = 1000;
            //Console.WriteLine("Checking KWP device open");
            if (!m_kwpDevice.isOpen())
                return KWPResult.DeviceNotConnected;

            // reset the timer for keep alive (set to 1 seconds now)
            if (stateTimer == null)
                stateTimer = new System.Threading.Timer(sendKeepAlive, new Object(), keepAliveTimeout, keepAliveTimeout);
            stateTimer.Change(keepAliveTimeout, keepAliveTimeout);

            m_requestMutex.WaitOne();
            int _retryCount = 0;
            result = RequestResult.Unknown; // <GS-11022010>
            while (_retryCount < _maxSendRetries && result != RequestResult.NoError)
            {
                LogDataString(a_request.ToString());
                result = m_kwpDevice.sendRequest(a_request, out reply);
                if ((int)reply.getLength() != expectedLength)
                {
                    result = RequestResult.InvalidLength;

                }
                if (result == RequestResult.NoError)
                {
                    a_reply = reply;
                    LogDataString(reply.ToString());
                    LogDataString(""); // empty line
                    m_requestMutex.ReleaseMutex();
                    //return KWPResult.OK;
                    _kwpResult = KWPResult.OK;
                }
                else
                {
                    LogDataString("Timeout in KWPHandler::sendRequest");
                    m_requestMutex.ReleaseMutex();
                    //return KWPResult.Timeout;
                    _kwpResult = KWPResult.Timeout;
                }
            }
            return _kwpResult;
        }