sl@0: // Copyright (c) 2004-2009 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: // Provides utilities to build SCSI commands
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalTechnology
sl@0: */
sl@0: 
sl@0: #ifndef __SCSICMDBUILDER_H__
sl@0: #define __SCSICMDBUILDER_H__
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <f32file.h>
sl@0: 
sl@0: const TInt KScsiCmdMaxLen 	= 10;
sl@0: const TInt KCbwLength       = 31;
sl@0: const TInt KCswLength       = 13;
sl@0: const TInt KKiloBytes		= 1024;
sl@0: 
sl@0: GLREF_D TBuf8<KScsiCmdMaxLen> scsiCmdBuf;
sl@0: 
sl@0: /**
sl@0:  builds read/write SCSI command
sl@0:  */
sl@0: GLREF_C void BuildReadWrite(TInt aFlag, TInt aLogicalBlkAddr, TInt aTotalBlks);
sl@0: 
sl@0: /**
sl@0:  Builds prevent/allow medium removal SCSI command
sl@0:  
sl@0:  @param aFlag: indicating if the command is to allow or prevent medium removal
sl@0:  */ 
sl@0: GLREF_C void BuildMediumRemoval(TInt aFlag);
sl@0: 
sl@0: /**
sl@0:  Builds a test unit ready SCSI command
sl@0:  */
sl@0: GLREF_C void BuildTestUnitReady();
sl@0: 
sl@0: /**
sl@0:  Builds a start/stop unit command
sl@0:  
sl@0:  @param aFlag: indicating if the command is to start or stop unit
sl@0:  */ 
sl@0: GLREF_C void BuildStartStopUnit(TInt aFlag);
sl@0: 
sl@0: /**
sl@0:  Copy an int. Little endian
sl@0:  
sl@0:  @param dest the destination
sl@0:  @param source the source
sl@0:  */
sl@0: GLREF_C void fillInt(TUint8* dest, TInt source);
sl@0: 
sl@0: /**
sl@0:  Extracts an integer from a buffer. Assume little endian 
sl@0:  */
sl@0: GLREF_C TInt extractInt(const TUint8* aBuf);
sl@0: 
sl@0: /**
sl@0:  Builds a CBW message
sl@0:  
sl@0:  @param aCbw:            stores CBW
sl@0:  @param aDCBWTag:        a command block tag sent by the host. Used to associates a CSW
sl@0:          				 with corresponding CBW
sl@0:  @param aDataTranferLen: the number of bytes the host expects to transfer
sl@0:  @param aInOutFlag:      value for bmCBWFlags field, indicating the direction of transfer
sl@0:  @param aCBWCB:			 the actual command to be wrapped
sl@0:  @param aTestLun:	 	 local unit number
sl@0:  */
sl@0: GLREF_C void createCBW(TDes8& aCbw, TInt aDCBWTag, TInt aDataTransferLen, TUint8 aInOutFlag, TDes8& aCBWCB, TUint8 aTestLun);
sl@0: 
sl@0: #endif // __SCSICMDBUILDER_H__
sl@0: