sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0: */
sl@0: 
sl@0: #ifndef USBDI_CHANNEL_H
sl@0: #define USBDI_CHANNEL_H
sl@0: 
sl@0: class DUsbInterface;
sl@0: class DUsbPageList;
sl@0: 
sl@0: /**
sl@0:   Logical Device (factory class) for USBDI
sl@0: */
sl@0: NONSHARABLE_CLASS(DUsbdiFactory) : public DLogicalDevice
sl@0: 	{
sl@0: public:
sl@0: 	DUsbdiFactory();
sl@0: 	~DUsbdiFactory();
sl@0: 
sl@0: private:
sl@0: 	//	Inherited from DLogicalDevice
sl@0: 	virtual TInt Install();
sl@0: 	virtual void GetCaps(TDes8& aDes) const;
sl@0: 	virtual TInt Create(DLogicalChannelBase*& aChannel);
sl@0: 	};
sl@0: 	
sl@0: 
sl@0: NONSHARABLE_CLASS(DUsbdiChannel) : public DLogicalChannelBase
sl@0: 	{
sl@0: public:
sl@0: 	DUsbdiChannel();
sl@0: 
sl@0: 	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
sl@0: 	TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
sl@0: 
sl@0: 	virtual void CloseChannel();
sl@0: 
sl@0: private:
sl@0: 	~DUsbdiChannel();
sl@0: 	TInt Close();
sl@0: 
sl@0: 	TInt AllocChunk(TInt aRequestSize, TInt* aChunkHandle, TInt* aOffset);
sl@0: 	void CloseChunk();
sl@0: 
sl@0: 	TInt HandleControl(TInt aReqNo, TAny* a1, TAny* a2);
sl@0: 	TInt HandleRequest(TInt aReqNo, TRequestStatus* aReq, TAny* a1, TAny* a2);
sl@0: 	TInt HandleCancel(TUint aCancelMask);
sl@0: 	
sl@0: private:
sl@0: 	DUsbInterface* iInterface;
sl@0: 	DUsbPageList* iPageList; // Owns the shared chunk
sl@0: 	};
sl@0: 
sl@0: #endif