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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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@file
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@internalTechnology
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*/
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#include <e32base.h>
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#include "debug.h"
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#include "msdebug.h"
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#include "msctypes.h"
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#include "mscutils.h"
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#include "mtransport.h"
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#include "mprotocol.h"
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#include "tscsiclientreq.h"
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#include "tscsiblockcmds.h"
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// **** MODE SENSE (6) ****
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void TScsiClientModeSense6Resp::DecodeL(const TDesC8& aPtr)
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{
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__MSFNSLOG
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__SCSIPRINT(_L("--> SCSI MODE SENSE (6)"));
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__SCSIPRINT1(_L("len=%d"), aPtr.Length());
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// Mode Parameter List
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// SPC-3 7.4.2
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// - Mode Parameter Header
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// - Block Descriptor(s)
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// - Mode Page(s)
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// Mode Parameter Header
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// SPC-3 7.4.3
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// [0] Mode Data Length
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// [1] Medium Type
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// [2] Device-Specific Paramater
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// [3] Block Descriptor Length
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// validate length
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if (aPtr.Length() < KResponseLength)
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{
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User::Leave(KErrGeneral);
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}
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TInt modeDataLength = aPtr[0];
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if (aPtr.Length() - 1 < modeDataLength)
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{
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User::Leave(KErrGeneral);
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}
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TInt mediumType = aPtr[1];
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TUint8 deviceSpecificParameter = aPtr[2];
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// TInt blockDescriptorLength = aPtr[3];
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__SCSIPRINT2(_L("Medium Type=%d DSP=0x%x"), mediumType, deviceSpecificParameter);
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// [1] Medium Type
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// 0x00 for SBC
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if (mediumType == 0)
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{
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// [2] Device specific parameter
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// SBC-3 6.3.1
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// get the WP bit from the Device Specific parameters
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iWriteProtected = (deviceSpecificParameter & 0x80) ? ETrue : EFalse;
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}
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else
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{
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// unsupported medium type
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iWriteProtected = EFalse;
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}
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// [3] Block Descriptor Length
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// 0x00 for no descriptors
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// No Block Descriptors
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// No Mode Pages
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}
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// **** MODE SENSE (10) ****
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void TScsiClientModeSense10Resp::DecodeL(const TDesC8& aPtr)
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{
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__MSFNSLOG
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__SCSIPRINT(_L("--> SCSI MODE SENSE (10)"));
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__SCSIPRINT1(_L("len=%d"), aPtr.Length());
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// Mode Parameter List
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// SPC-3 7.4.2
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// - Mode Parameter Header
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// - Block Descriptor(s)
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// - Mode Page(s)
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// Mode Parameter Header
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// SPC-3 7.4.3
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// [0] Mode Data Length
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// [1] Mode Data Length
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// [2] Medium Type
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// [3] Device-Specific Paramater
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// [4] Reserved
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// [5] Reserved
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// [6] Block Descriptor Length
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// [7] Block Descriptor Length
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// validate length
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if (aPtr.Length() < KResponseLength)
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{
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User::Leave(KErrGeneral);
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}
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TInt modeDataLength = BigEndian::Get32(&aPtr[0]);
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if (aPtr.Length() - 2 < modeDataLength)
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{
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User::Leave(KErrGeneral);
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}
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TInt mediumType = aPtr[2];
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TUint8 deviceSpecificParameter = aPtr[3];
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// TInt blockDescriptorLength = BigEndian::Get32(&aPtr[6]);;
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__SCSIPRINT2(_L("Medium Type=%d DSP=0x%x"), mediumType, deviceSpecificParameter);
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// [1] Medium Type
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// 0x00 for SBC
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if (mediumType == 0)
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{
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// [2] Device specific parameter
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// SBC-3 6.3.1
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// get the WP bit from the Device Specific parameters
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iWriteProtected = (deviceSpecificParameter & 0x80) ? ETrue : EFalse;
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}
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else
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{
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// unsupported medium type
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iWriteProtected = EFalse;
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}
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// [3] Block Descriptor Length
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// 0x00 for no descriptors
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// No Block Descriptors
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// No Mode Pages
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}
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// **** READ CAPACITY (10) ***
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TInt TScsiClientReadCapacity10Req::EncodeRequestL(TDes8& aBuffer) const
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{
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__MSFNSLOG
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__SCSIPRINT(_L("<-- READ CAPACITY 10"));
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TInt length = TScsiClientReq::EncodeRequestL(aBuffer);
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if (iLba)
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{
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// PMI bit
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aBuffer[8] = 0x01;
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// LBA
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BigEndian::Put32(&aBuffer[2], iLba);
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}
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return length;
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}
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void TScsiClientReadCapacity10Resp::DecodeL(const TDesC8& aPtr)
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{
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__MSFNSLOG
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__SCSIPRINT(_L("--> SCSI READ CAPACITY (10)"));
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iLba = BigEndian::Get32(&aPtr[0]);
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iBlockSize = BigEndian::Get32(&aPtr[4]);
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}
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// **** RdWr10 ****
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TInt TScsiClientRdWr10Req::EncodeRequestL(TDes8& aBuffer) const
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{
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__MSFNSLOG
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TInt length = TScsiClientReq::EncodeRequestL(aBuffer);
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// PROTECT
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if (iProtect)
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aBuffer[1] = iProtect << 5;
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__SCSIPRINT2(_L("LBA=%08x LEN=%08x"), iLogicalBlockAddress, iBlockTransferLength);
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// LOGICAL BLOCK ADDRESS
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BigEndian::Put32(&aBuffer[2], iLogicalBlockAddress);
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// TRANSFER LENGTH
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BigEndian::Put16(&aBuffer[7], iBlockTransferLength);
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return length;
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}
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// **** READ (10) ****
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TInt TScsiClientRead10Req::EncodeRequestL(TDes8& aBuffer) const
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{
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__MSFNSLOG
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__SCSIPRINT(_L("<-- SCSI READ (10)"));
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TInt length = TScsiClientRdWr10Req::EncodeRequestL(aBuffer);
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return length;
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}
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// **** START STOP UNIT ****
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TInt TScsiClientStartStopUnitReq::EncodeRequestL(TDes8& aBuffer) const
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{
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__MSFNSLOG
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__SCSIPRINT(_L("--> SCSI START STOP UNIT"));
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TInt length = TScsiClientReq::EncodeRequestL(aBuffer);
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// byte 1 mask
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const TUint8 KImmedMask = 0x01;
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// byte 4 mask
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const TUint8 KStartMask = 0x01;
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const TUint8 KLoejMask = 0x02;
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if (iImmed)
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aBuffer[1] |= KImmedMask;
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if (iStart)
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aBuffer[4] |= KStartMask;
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if (iLoej)
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aBuffer[4] |= KLoejMask;
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return length;
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}
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// **** WRITE (10) ****
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TInt TScsiClientWrite10Req::EncodeRequestL(TDes8& aBuffer) const
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{
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__MSFNSLOG
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__SCSIPRINT(_L("<-- SCSI WRITE 10"));
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TInt length = TScsiClientRdWr10Req::EncodeRequestL(aBuffer);
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return length;
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}
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