// Copyright (c) 2008-2009 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:

 //

 /**

  @file

  @internalTechnology

 */

 #ifndef TSCSIBLOCKCMDS_H

 #define TSCSIBLOCKCMDS_H

 /**

 Data type for Logical Block Address

 */

 typedef TUint32 TLba;

 /**

 Data type for PROTECT filed used in READ (10) and WRITE (10)

 SBC-3 5.6 Table 33 and 5.25 Table 68

 */

 typedef TUint TProtect;     // 3 bits

 class TScsiClientReq;

 /**

 Encode SCSI MODE SENSE(6) REQUEST

 Ref SPC-2 7.8 Request

 Ref SPC-3 6.9 Request

 Ref SPC-3 7.4 Response format

 Ref SBC-3 6.3 Response format for SBC

 */

 class TScsiClientModeSense6Req: public TScsiClientReq

     {

 public:

     /** SCSI PAGE CONTROL values */

     enum TPageControl

         {

         ECurrentValues = 0x00,

         EChangeableValues = 0x01,

         EDefaultValues = 0x02,

         ESavedValues = 0x03

         };

     /** Length of MODE SENSE (6) response */

     static const TUint KResponseLength = 4;

     TScsiClientModeSense6Req(TPageControl aPageControl,

                              TUint aPageCode,

                              TUint aSubPageCode = 0);

     TInt EncodeRequestL(TDes8& aBuffer) const;

 public:

     /** SCSI PAGE CONTROL field */

     TPageControl iPageControl;

     /** SCSI PAGE CODE field */

     TUint iPageCode;

     /** SCSI SUB PAGE CODE field */

     TUint iSubPageCode;

     /** SCSI ALLOCATION LENGTH field */

     TAllocationLength iAllocationLength;

     };

 /**

 Encode SCSI MODE SENSE(6) RESPONSE

 Ref SPC-3 6.9 Request

 Ref SPC-3 7.4 Response format

 Ref SBC-3 6.3 Response format for SBC

 */

 class TScsiClientModeSense6Resp: public TScsiClientResp

     {

 public:

     /** Length of MODE SENSE (6) response */

     static const TUint KResponseLength = 4;

     TScsiClientModeSense6Resp() {};

     TInt DataLength() const {return KResponseLength;}

     void DecodeL(const TDesC8& aPtr);

 public:

     /** Returned SCSI WP flag */

     TBool iWriteProtected;

     };

 /**

 Encode MODE SENSE (10) REQUEST

 Ref SPC-2 7.9  Request

 Ref SPC-3 6.10 Request

 Ref SPC-2 8.2  Response format

 Ref SPC-3 7.4  Response format

 Ref SBC-3 6.3  Response format for SBC

 */

 class TScsiClientModeSense10Req: public TScsiClientReq

     {

 public:

     /** SCSI PAGE CONTROL values */

     enum TPageControl

         {

         ECurrentValues = 0x00,

         EChangeableValues = 0x01,

         EDefaultValues = 0x02,

         ESavedValues = 0x03

         };

     /** Length of MODE SENSE (10) response */

     static const TUint KResponseLength = 8;

     TScsiClientModeSense10Req(TPageControl aPageControl,

                               TUint aPageCode,

                               TUint aSubPageCode = 0);

     TInt EncodeRequestL(TDes8& aBuffer) const;

 public:

     /** SCSI PAGE CONTROL field */

     TPageControl iPageControl;

     /** SCSI PAGE CODE field */

     TUint iPageCode;

     /** SCSI SUB PAGE CODE field */

     TUint iSubPageCode;

     /** SCSI ALLOCATION LENGTH field */

     TAllocationLength iAllocationLength;

     };

 /**

 Decode SCSI MODE SENSE (10) RESPONSE

 Ref SPC-3 6.10 Request

 Ref SPC-3 7.4  Response format

 Ref SBC-3 6.3  Response format for SBC

 */

 class TScsiClientModeSense10Resp: public TScsiClientResp

     {

 public:

     /** Length of MODE SENSE (10) response */

     static const TUint KResponseLength = 8;

     TScsiClientModeSense10Resp() {};

     TInt DataLength() const {return KResponseLength;}

     void DecodeL(const TDesC8& aPtr);

 public:

     /** Returned SCSI WP flag */

     TBool iWriteProtected;

     };

 /**

 Encode READ CAPCAITY (10) REQUEST

 Ref SBC 2 5.10

 Ref SBC 3 5.10

 */

 class TScsiClientReadCapacity10Req: public TScsiClientReq

     {

 public:

     /** Length of READ CAPACITY (10) response */

     static const TInt KResponseLength = 8;

     TScsiClientReadCapacity10Req();

     TScsiClientReadCapacity10Req(TLba aLba);

     TInt EncodeRequestL(TDes8& aBuffer) const;

 public:

     /** SCSI LOGICAL BLOCK ADDRESS */

     TLba iLba;

     };

 /**

 Decode READ CAPCAITY (10) RESPONSE

 */

 class TScsiClientReadCapacity10Resp: public TScsiClientResp

     {

 public:

     /** Length of READ CAPACITY (10) response */

     static const TInt KResponseLength = 8;

     TScsiClientReadCapacity10Resp() {};

     void DecodeL(const TDesC8& aPtr);

     TInt DataLength() const {return KResponseLength;}

 public:

     /** Returned SCSI LOGICAL BLOCK ADDRESS */

     TLba iLba;

     /** Returned SCSI BLOCK LENGTH IN BYTES */

     TUint32 iBlockSize;

     };

 /**

 Base class for encoding SCSI READ (10) and SCSI WRITE (10) requests

 */

 class TScsiClientRdWr10Req: public TScsiClientReq

     {

 public:

     TScsiClientRdWr10Req(TOperationCode aOperationCode);

     TInt EncodeRequestL(TDes8& aBuffer) const;

 public:

     /** SCSI LOGICAL BLOCK ADDRESS field   */

     TUint32 iLogicalBlockAddress;

     /** SCSI TRANSFER LENGTH field   */

     TUint16 iBlockTransferLength;

     /** SCSI RDPROTECT or SCSI WRPROTECT field */

     TProtect iProtect;

     };

 /**

 Encode SCSI READ (10) REQUEST

 */

 class TScsiClientRead10Req: public TScsiClientRdWr10Req

     {

 public:

     TScsiClientRead10Req();

     TInt EncodeRequestL(TDes8& aBuffer) const;

     };

 /**

 Encode START STOP UNIT REQUEST

 Ref SBC-2 5.17

 */

 class TScsiClientStartStopUnitReq: public TScsiClientReq

     {

 public:

     TScsiClientStartStopUnitReq();

     TInt EncodeRequestL(TDes8& aBuffer) const;

 public:

     /** SCSI IMMED flag */

     TBool iImmed;

     /** SCSI START flag */

     TBool iStart;

     /** SCSI LOEJ flag */

     TBool iLoej;

     };

 /**

 Encode SCSI WRITE (10) REQUEST

 */

 class TScsiClientWrite10Req: public TScsiClientRdWr10Req

     {

 public:

     TScsiClientWrite10Req();

     TInt EncodeRequestL(TDes8& aBuffer) const;

     };

 #include "tscsiblockcmds.inl"

 #endif // TSCSIBLOCKCMDS_H