// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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

 @internalComponent

*/

#ifndef TMTPUSBCONTROLREQUESTDEVICESTATUS_H

#define TMTPUSBCONTROLREQUESTDEVICESTATUS_H

#include <mtp/tmtptypeflatbase.h>

/**

Defines the MTP USB device class device status control request dataset. This 

dataset is of variable length depending on the number of non-zero parameter

values.

@internalComponent

*/

class TMTPUsbControlRequestDeviceStatus : public TMTPTypeFlatBase 

    {

public:

    /**

    MTP USB device status control request dataset element identifiers.

    */

    enum TElements

        {

        EwLength,

        ECode,

        EParameter1,

        EParameter2,

        EParameter3,

        EParameter4,

        EParameter5,

        EParameter6,

        EParameter7,

        EParameter8,

        EParameter9,

        EParameter10,

        EParameter11,

        EParameter12,

        EParameter13,

        EParameter14,

        EParameter15,

        EParameter16,

        EParameter17,

        EParameter18,

        EParameter19,

        EParameter20,

        EParameter21,

        EParameter22,

        EParameter23,

        EParameter24,

        EParameter25,

        EParameter26,

        EParameter27,

        EParameter28,

        EParameter29,

        EParameter30,

        EParameter31,

        EParameter32,

        ENumElements

        };

    /**

    The dataset size in bytes.

    */

    static const TInt   KMaxSize        = 132;

    /**

    The maximum parameter count.

    */

    static const TUint  KMaxParameters  = (ENumElements - EParameter1);

public:

    IMPORT_C TMTPUsbControlRequestDeviceStatus();

    IMPORT_C TUint NumParameters() const;

public: // From TMTPTypeFlatBase

    IMPORT_C void Reset();

    IMPORT_C void SetUint32(TInt aElementId, TUint32 aData); 

    IMPORT_C TUint32 Uint32(TInt aElementId) const;

    IMPORT_C TInt FirstReadChunk(TPtrC8& aChunk) const;

    IMPORT_C TUint64 Size() const;

    IMPORT_C TUint Type() const;

    IMPORT_C TBool CommitRequired() const;

    IMPORT_C MMTPType* CommitChunkL(TPtr8& aChunk);

private: // From TMTPTypeFlatBase

    IMPORT_C const TMTPTypeFlatBase::TElementInfo& ElementInfo(TInt aElementId) const;

private:

    /**

    The dataset element metadata table content.

    */

    static const TMTPTypeFlatBase::TElementInfo     iElementMetaData[];

    /**

    The dataset element metadata table.

    */

    const TFixedArray<TElementInfo, ENumElements>   iElementInfo;

    /**

    The data buffer.

    */

    TBuf8<KMaxSize>                                 iBuffer;

    /**

    The number of parameters in the dataset which are set.

    */

    TUint                                           iNumParameters;

    };

#endif // TMTPUSBCONTROLREQUESTDEVICESTATUS_H