diff -r d3e8e7d462dd -r f92a4f87e424 usbmgmt/usbmgr/device/classdrivers/ncm/classimplementation/ncmpktdrv/pktdrv/src/ncmdatareceiver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/ncm/classimplementation/ncmpktdrv/pktdrv/src/ncmdatareceiver.cpp	Tue Aug 31 17:01:47 2010 +0300
@@ -0,0 +1,204 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+
+#ifndef __OVER_DUMMYUSBSCLDD__
+#include <e32base.h>
+#include <d32usbc.h>//EEndPoint2
+#else
+#include <dummyusbsclddapi.h>
+#endif
+
+#include "ncmdatareceiver.h"
+#include "ncmdatainterface.h"
+
+#include "OstTraceDefinitions.h"
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "ncmdatareceiverTraces.h"
+#endif
+
+
+
+#ifdef _DEBUG
+_LIT(KDataReceiverPanic, "DataRcvrPanic");
+#endif
+
+/**
+@file
+@internalComponent
+*/
+
+/**
+ * Constructor
+ */
+CNcmDataReceiver::CNcmDataReceiver(RDevUsbcScClient& aPort, CNcmDataInterface& aParent) :
+                                            CActive(CActive::EPriorityStandard),
+                                            iPort(aPort),
+                                            iParent(aParent)
+    {
+    CActiveScheduler::Add(this);
+    }
+
+/**
+ * NewL to create object.
+ */
+CNcmDataReceiver* CNcmDataReceiver::NewL(RDevUsbcScClient& aPort, CNcmDataInterface& aParent)
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_NEWL);
+
+    CNcmDataReceiver* self = new(ELeave) CNcmDataReceiver(aPort, aParent);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+
+    OstTraceFunctionExit1(CNCMDATARECEIVER_NEWL_DUP01, self);
+    return self;
+    }
+
+void CNcmDataReceiver::ConstructL()
+    {
+    iNtbParser = CNcmNtb16Parser::NewL(*this);
+    }
+
+/**
+ * Destructor
+ */
+CNcmDataReceiver::~CNcmDataReceiver()
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_CNCMDATARECEIVER_DUP01);
+
+    Cancel();
+    delete iNtbParser;
+    }
+
+/**
+ * Start to receive and parse the USB data.
+ */
+void CNcmDataReceiver::Start()
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_START);
+
+    TInt ret = iPort.OpenEndpoint(iEpIn, EEndpoint2);
+    if (KErrNone != ret)
+        {
+        OstTrace1(TRACE_ERROR, CNCMDATARECEIVER_START_DUP01, "OpenEndpoint error=%d", ret);
+        iParent.DataError(ret);
+        OstTraceFunctionExit0(CNCMDATARECEIVER_START_DUP02);
+        return;
+        }
+    ReadData();
+    OstTraceFunctionExit0(CNCMDATARECEIVER_START_DUP03);
+    }
+
+/**
+ * Read the data packet from NCM host
+ */
+void CNcmDataReceiver::ReadData()
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_READDATA);
+
+    const TInt KRetryCount = 3;
+    TInt ret = KErrNone;
+    TInt errCnt = KRetryCount;
+
+    while(errCnt)
+        {
+        ret = iEpIn.TakeBuffer(reinterpret_cast<TAny*&>(iBuf), iBufLen, iZlp, iStatus);
+        if (KErrCompletion == ret)
+            {
+            errCnt = KRetryCount;
+            if (iBufLen > 0)
+                {
+                OstTraceExt3(TRACE_NORMAL, CNCMDATARECEIVER_READDATA_DUP02, "iBuf=%x, iBufLen=%d, iZlp=%d", (TInt)iBuf, iBufLen, iZlp);
+                ret = iNtbParser->Parse(iBuf, iBufLen, iZlp);
+                }
+            }
+        else if (KErrNone == ret || KErrEof == ret)
+            {
+            break;
+            }
+        else
+            {
+            OstTrace1(TRACE_ERROR, CNCMDATARECEIVER_READDATA_DUP03, "TakeBuffer error=%d", ret);
+            errCnt --;
+            }
+        }
+
+    if (KErrNone == ret)
+        {
+        SetActive();
+        }
+    else if (KErrEof != ret)
+        {
+        iParent.DataError(ret);
+        }
+
+    OstTraceFunctionExit0(CNCMDATARECEIVER_READDATA_DUP01);
+    }
+
+/**
+ * Expire the Share Chunk LDD's buffer (see above TakeBuffer)
+ */
+void CNcmDataReceiver::ExpireBuffer(TAny* aBuf)
+    {
+    TInt ret = iEpIn.Expire(aBuf);
+    __ASSERT_DEBUG(KErrNone==ret, User::Panic(KDataReceiverPanic, __LINE__));
+    }
+
+/**
+ * Deliver the received packet data to upper link
+ */
+void CNcmDataReceiver::ProcessEtherFrame(RMBufPacket& aPacket)
+    {
+    iParent.ProcessDatagram(aPacket);
+    }
+
+/**
+ * RunL, a state machine to read the NCM packet data from NCM host
+ */
+void CNcmDataReceiver::RunL()
+    {
+    if(KErrNone == iStatus.Int())
+        {
+        ReadData();
+        }
+    else
+        {
+        OstTrace1(TRACE_ERROR, CNCMDATARECEIVER_RUNL, "iStatus.Int()=%d", iStatus.Int());
+        iParent.DataError(iStatus.Int());
+        }
+    }
+
+/**
+ * Cancel the outgoing read request
+ */
+void CNcmDataReceiver::DoCancel()
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_DOCANCEL);
+    iPort.ReadCancel(iEpIn.BufferNumber());
+    }
+
+void CNcmDataReceiver::Stop()
+    {
+    OstTraceFunctionEntry0(CNCMDATARECEIVER_STOP);
+    Cancel();
+    iNtbParser->Reset();
+    TInt ret = iEpIn.Close();
+
+    OstTraceFunctionExit0(CNCMDATARECEIVER_STOP_DUP01);
+    }