--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usbmgmt/usbmgr/device/classdrivers/ncm/classimplementation/ncmpktdrv/pktdrv/inc/ncmengine.h	Wed Jul 07 14:16:40 2010 +0800
@@ -0,0 +1,133 @@
+/*
+* 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:
+*
+*/
+
+/**
+@file
+@internalComponent
+*/
+#ifndef NCMENGINE_H
+#define NCMENGINE_H
+
+
+#ifndef __OVER_DUMMYUSBSCLDD__
+#include <es_mbuf.h>
+#else
+#include <usb/testncm/ethinter.h>
+#endif
+
+#include <random.h>
+
+#include "ncmpktdrvcommon.h"
+#include "ncmcommunicationinterface.h"
+#include "ncmdatainterface.h"
+#include "ncmsharedstatemanager.h"
+
+class CNcmPktDrv;
+
+/**
+NCM Engine: coordinate with Data Interface, Comm Interface and Shared State Manager.
+*/
+NONSHARABLE_CLASS(CNcmEngine) : public CActive,
+                                public MNcmDataObserver,
+                                public MNcmControlObserver,
+                                public MShareStateObserver
+    {
+public:
+    static CNcmEngine* NewL(CNcmPktDrv& aPktDrv);
+    ~CNcmEngine();
+
+    //Start the engine, called by TransferHandle after PktDrvBase's StartInterface;
+    TInt Start(RMessagePtr2& aMsg);
+    //Stop the engine, called by PktDrvBase's StopInterface;
+    void Stop();
+
+    //Send a Packet to USB Host.
+    TInt Send(RMBufChain &aPacket);
+    //Get the Interface Mac Address;
+    TUint8* InterfaceAddress();
+
+    //From MNcmControlObserver
+    TInt HandleSetNtbInputSize(TDes8&);
+    TInt HandleGetNtbParam(TDes8&);
+    TInt HandleGetNtbInputSize(TDes8&);
+    void ControlError(TInt aError);
+
+    //From MNcmDataObserver
+    void ProcessReceivedDatagram(RMBufPacket&);
+    void ResumeSending();
+    void DataError(TInt aError);
+    void HandleAltSetting(TInt aIfNum);
+    TInt SetInEpBufferSize(TUint aSize);
+
+    //From MShareStateObserver
+    void NotifyDhcpStarted();
+
+    inline TInt SetStateToWatcher(TInt aType, TInt aValue) const;
+    inline TInt RegisterNotify(const RMessage2& aMsg) const;
+    inline TInt DeRegisterNotify() const;
+
+#ifdef __OVER_DUMMYUSBSCLDD__
+public:
+    TInt State() const {return iEngineState;}
+#endif
+
+private:
+    //From CActive
+    void RunL();
+    void DoCancel();
+
+    CNcmEngine();
+    CNcmEngine(CNcmPktDrv& aPktDrv);
+    void ConstructL();
+
+    void InitLddL(const RMessagePtr2& aMsg);
+    void RandomMacAddressL(TNcmMacAddress& aMacAddress);
+    void DoNcmStarted();
+    void StartDataLayer();
+    void StopDataLayer();
+
+private:
+    enum TNcmEngineState
+        {
+        ENcmStateUninitialized = 0,
+        ENcmStateStarting,
+        ENcmStateStarted,
+        ENcmStatePaused,
+        ENcmStateStopped,
+        ENcmStateMax
+        };
+
+private:
+    CNcmPktDrv&             iPktDrv;
+
+    CNcmDataInterface*      iDataInterface;
+    CNcmCommunicationInterface* iCommInterface;
+    CNcmSharedStateManager* iSharedStateManager;
+
+    TNcmEngineState         iEngineState;
+    TUint                   iDeviceState;
+
+    TNcmMacAddress          iSymbianMacAddress;
+
+    RDevUsbcScClient        iDataLdd;
+    RDevUsbcScClient        iCommLdd;
+    };
+
+//inline functions
+#include "ncmengine.inl"
+
+#endif // NCMENGINE_H