sl@0: // Copyright (c) 2008-2009 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: // BOT Protocol layer for USB Mass Storage Class
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalTechnology
sl@0: */
sl@0: 
sl@0: #ifndef MBLOCKTRANSFERPROTOCOL_H
sl@0: #define MBLOCKTRANSFERPROTOCOL_H
sl@0: 
sl@0: /**
sl@0: Interface class to be provided by the Protocol layer. The interface methods are
sl@0: used by TBlockTransfer class which manages block read and block writes of the
sl@0: data to be transferred.
sl@0: */
sl@0: class MBlockTransferProtocol
sl@0:     {
sl@0: public:
sl@0:     /**
sl@0:     Read a block of data aligned to block boundary.
sl@0: 
sl@0:     @param aPos The position aligned to block boundary
sl@0:     @param aBuf The buffer to copy the data into
sl@0:     @param aLength The Length in bytes, a multiple of the block length
sl@0:     */
sl@0:     virtual void BlockReadL(TUint64 aPos, TDes8& aBuf, TInt aLength) = 0;
sl@0: 
sl@0:     /**
sl@0:     Write a block of data aligned to block boundary.
sl@0: 
sl@0:     @param aPos The position aligned to block boundary
sl@0:     @param aBuf The buffer containing the data to write
sl@0:     @param aOffset The offset into the buffer to the start of the block
sl@0:     @param aLength The length in bytes, must be a multiple of the block length
sl@0:     */
sl@0:     virtual void BlockWriteL(TUint64 aPos, TDesC8& aBuf, TUint aOffset, TInt aLength) = 0;
sl@0:     };
sl@0: 
sl@0: #endif // MBLOCKTRANSFERPROTOCOL_H
sl@0: