williamr@4: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@4: // All rights reserved.
williamr@4: // This component and the accompanying materials are made available
williamr@4: // under the terms of the License "Eclipse Public License v1.0"
williamr@4: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@4: //
williamr@4: // Initial Contributors:
williamr@4: // Nokia Corporation - initial contribution.
williamr@4: //
williamr@4: // Contributors:
williamr@4: //
williamr@4: // Description:
williamr@4: //
williamr@4: 
williamr@4: /**
williamr@4:  @file
williamr@4:  @internalComponent
williamr@4: */
williamr@4: 
williamr@4: #ifndef USBDI_CHANNEL_H
williamr@4: #define USBDI_CHANNEL_H
williamr@4: 
williamr@4: class DUsbInterface;
williamr@4: class DUsbPageList;
williamr@4: 
williamr@4: /**
williamr@4:   Logical Device (factory class) for USBDI
williamr@4: */
williamr@4: NONSHARABLE_CLASS(DUsbdiFactory) : public DLogicalDevice
williamr@4: 	{
williamr@4: public:
williamr@4: 	DUsbdiFactory();
williamr@4: 	~DUsbdiFactory();
williamr@4: 
williamr@4: private:
williamr@4: 	//	Inherited from DLogicalDevice
williamr@4: 	virtual TInt Install();
williamr@4: 	virtual void GetCaps(TDes8& aDes) const;
williamr@4: 	virtual TInt Create(DLogicalChannelBase*& aChannel);
williamr@4: 	};
williamr@4: 	
williamr@4: 
williamr@4: NONSHARABLE_CLASS(DUsbdiChannel) : public DLogicalChannelBase
williamr@4: 	{
williamr@4: public:
williamr@4: 	DUsbdiChannel();
williamr@4: 
williamr@4: 	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
williamr@4: 	TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
williamr@4: 
williamr@4: 	virtual void CloseChannel();
williamr@4: 
williamr@4: private:
williamr@4: 	~DUsbdiChannel();
williamr@4: 	TInt Close();
williamr@4: 
williamr@4: 	TInt AllocChunk(TInt aRequestSize, TInt* aChunkHandle, TInt* aOffset);
williamr@4: 	void CloseChunk();
williamr@4: 
williamr@4: 	TInt HandleControl(TInt aReqNo, TAny* a1, TAny* a2);
williamr@4: 	TInt HandleRequest(TInt aReqNo, TRequestStatus* aReq, TAny* a1, TAny* a2);
williamr@4: 	TInt HandleCancel(TUint aCancelMask);
williamr@4: 	
williamr@4: private:
williamr@4: 	DUsbInterface* iInterface;
williamr@4: 	DUsbPageList* iPageList; // Owns the shared chunk
williamr@4: 	};
williamr@4: 
williamr@4: #endif