// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include <e32def.h>

#include <e32cmn.h>

#include <e32des8.h>

#include <e32std.h>

#include <e32base.h>

#include "msctypes.h"

#include "tscsiserverreq.h"

#include "tscsiservercmds.h"

#include "debug.h"

#include "msdebug.h"

TScsiServerReq* TScsiServerReq::CreateL(TScsiServerReq::TOperationCode aOperationCode,

                                        TDesC8& aDes)

    {

    __MSFNSLOG

    TScsiServerReq* req = NULL;

    __SCSIPRINT1(_L("SCSI CMD 0x%x"), aOperationCode);

    switch (aOperationCode)

        {

        case ETestUnitReady:

            {

            req = new (ELeave) TScsiServerTestUnitReadyReq;

            }

            break;

        case ERequestSense:

            {

            req = new (ELeave) TScsiServerRequestSenseReq;

            }

            break;

        case EInquiry:

            {

            req = new (ELeave) TScsiServerInquiryReq;

            }

            break;

        case EModeSense6:

            {

            req = new (ELeave) TScsiServerModeSense6Req;

            }

            break;

        case EStartStopUnit:

            {

            req = new (ELeave) TScsiServerStartStopUnitReq;

            }

            break;

        case EPreventMediaRemoval:

            {

            req = new (ELeave) TScsiServerPreventMediaRemovalReq;

            }

            break;

        case EReadFormatCapacities:

            {

            req = new (ELeave) TScsiServerReadFormatCapacitiesReq;

            }

            break;

        case EReadCapacity10:

            {

            req = new (ELeave) TScsiServerReadCapacity10Req;

            }

            break;

        case ERead10:

            {

            req = new (ELeave) TScsiServerRead10Req;

            }

            break;

        case EWrite10:

            {

            req = new (ELeave) TScsiServerWrite10Req;

            }

            break;

        default:

            {

            __SCSIPRINT(_L("NOT SUPPORTED!"));

            User::Leave(KErrNotSupported);

            }

        }

    if (req)

        {

        CleanupStack::PushL(req);

        // got a class into which it can parse itself from the protocol

        req->DecodeL(aDes);

        CleanupStack::Pop(req);

        }

    return req;

    }

void TScsiServerReq::DecodeL(const TDesC8& aPtr)

    {

    __MSFNLOG

    // OPERATION CODE

	iOperationCode = static_cast<TOperationCode>(aPtr[0]);

    // CONTROL byte

    TInt length = 0;

    switch (GetGroupCode())

        {

        case 0:

            // 6 byte commands

            length = 6;

            break;

        case 1:

        case 2:

            // 10 byte commands

            length = 10;

            break;

        default:

            User::Leave(KErrNotSupported);

            break;

        }

    // CONTROL byte is last element of Command

    TUint8 control = aPtr[length - 1];

    iLink = control & 0x04 ? ETrue : EFalse;

    iNaca = control & 0x01 ? ETrue : EFalse;

    }