// 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

*/

#include <mtp/mtpprotocolconstants.h>

#include "mtpusbdatatypeconstants.h"

#include "tmtpusbcontrolrequestdevicestatus.h"

// Dataset element metadata.

const TMTPUsbControlRequestDeviceStatus::TElementInfo TMTPUsbControlRequestDeviceStatus::iElementMetaData[ENumElements] = 

    {

        {EMTPTypeUINT16,   0,   KMTPTypeUINT16Size},    // EwLength

        {EMTPTypeUINT16,   2,   KMTPTypeUINT16Size},    // ECode

        {EMTPTypeUINT32,    4,   KMTPTypeUINT32Size},     // EParameter1

        {EMTPTypeUINT32,    8,   KMTPTypeUINT32Size},     // EParameter2

        {EMTPTypeUINT32,    12,  KMTPTypeUINT32Size},     // EParameter3 

        {EMTPTypeUINT32,    16,  KMTPTypeUINT32Size},     // EParameter4 

        {EMTPTypeUINT32,    20,  KMTPTypeUINT32Size},     // EParameter5

        {EMTPTypeUINT32,    24,  KMTPTypeUINT32Size},     // EParameter6

        {EMTPTypeUINT32,    28,  KMTPTypeUINT32Size},     // EParameter7

        {EMTPTypeUINT32,    32,  KMTPTypeUINT32Size},     // EParameter8

        {EMTPTypeUINT32,    36,  KMTPTypeUINT32Size},     // EParameter9

        {EMTPTypeUINT32,    40,  KMTPTypeUINT32Size},     // EParameter10

        {EMTPTypeUINT32,    44,  KMTPTypeUINT32Size},     // EParameter11

        {EMTPTypeUINT32,    48,  KMTPTypeUINT32Size},     // EParameter12

        {EMTPTypeUINT32,    52,  KMTPTypeUINT32Size},     // EParameter13

        {EMTPTypeUINT32,    56,  KMTPTypeUINT32Size},     // EParameter14

        {EMTPTypeUINT32,    60,  KMTPTypeUINT32Size},     // EParameter15

        {EMTPTypeUINT32,    64,  KMTPTypeUINT32Size},     // EParameter16

        {EMTPTypeUINT32,    68,  KMTPTypeUINT32Size},     // EParameter17

        {EMTPTypeUINT32,    72,  KMTPTypeUINT32Size},     // EParameter18

        {EMTPTypeUINT32,    76,  KMTPTypeUINT32Size},     // EParameter19

        {EMTPTypeUINT32,    80,  KMTPTypeUINT32Size},     // EParameter20

        {EMTPTypeUINT32,    84,  KMTPTypeUINT32Size},     // EParameter21

        {EMTPTypeUINT32,    88,  KMTPTypeUINT32Size},     // EParameter22

        {EMTPTypeUINT32,    92,  KMTPTypeUINT32Size},     // EParameter23

        {EMTPTypeUINT32,    96,  KMTPTypeUINT32Size},     // EParameter24

        {EMTPTypeUINT32,    100,  KMTPTypeUINT32Size},     // EParameter25

        {EMTPTypeUINT32,    104,  KMTPTypeUINT32Size},     // EParameter26

        {EMTPTypeUINT32,    108,  KMTPTypeUINT32Size},     // EParameter27

        {EMTPTypeUINT32,    112,  KMTPTypeUINT32Size},     // EParameter28

        {EMTPTypeUINT32,    116,  KMTPTypeUINT32Size},     // EParameter29

        {EMTPTypeUINT32,    120,  KMTPTypeUINT32Size},     // EParameter30

        {EMTPTypeUINT32,    124,  KMTPTypeUINT32Size},     // EParameter31

        {EMTPTypeUINT32,    128,  KMTPTypeUINT32Size},     // EParameter32

    }; 

/** 

Constructor

*/

EXPORT_C TMTPUsbControlRequestDeviceStatus::TMTPUsbControlRequestDeviceStatus() :

    iElementInfo(iElementMetaData, ENumElements),

    iBuffer(KMaxSize),

    iNumParameters(0)

    {

    SetBuffer(iBuffer);

    }   

/**

Provides the number of parameters in the dataset which are set.

@return the number of set parameters.

*/

EXPORT_C TUint TMTPUsbControlRequestDeviceStatus::NumParameters() const

    {

    return iNumParameters;        

    }  

/**

Resets the dataset.

*/

EXPORT_C void TMTPUsbControlRequestDeviceStatus::Reset()

    {

    TMTPTypeFlatBase::Reset();

    iNumParameters = 0;

    }

EXPORT_C void TMTPUsbControlRequestDeviceStatus::SetUint32(TInt aElementId, TUint32 aData)

    {

    // Recalculate iNumParameters.

    TUint num((aElementId - EParameter1) + 1);

    if (num > iNumParameters)

        {

        iNumParameters = num;            

        }

    //  Set the element value.

    TMTPTypeFlatBase::SetUint32(aElementId, aData);

    }

EXPORT_C TUint32 TMTPUsbControlRequestDeviceStatus::Uint32(TInt aElementId) const

    {

    __ASSERT_DEBUG((aElementId - EParameter1 < iNumParameters), User::Invariant());

    return TMTPTypeFlatBase::Uint32(aElementId);

    }

EXPORT_C TInt TMTPUsbControlRequestDeviceStatus::FirstReadChunk(TPtrC8& aChunk) const

    {

    TInt    ret(TMTPTypeFlatBase::FirstReadChunk(aChunk));

    TUint64 size(Size());

    if (size < aChunk.Size())

        {

        // Truncate the buffer at the last set parameter.

        aChunk.Set(aChunk.Left(size));

        }

    return ret;

    }

EXPORT_C TUint64 TMTPUsbControlRequestDeviceStatus::Size() const

    {

    const TUint emptyParams(((ENumElements - EParameter1) - iNumParameters) * iElementInfo[EParameter1].iSize);

    return (KMaxSize - emptyParams);

    }

EXPORT_C TUint TMTPUsbControlRequestDeviceStatus::Type() const

	{

	return EMTPUsbTypeControlRequestDeviceStatus;

	}

EXPORT_C TBool TMTPUsbControlRequestDeviceStatus::CommitRequired() const

    {

    return ETrue;

    }

EXPORT_C MMTPType* TMTPUsbControlRequestDeviceStatus::CommitChunkL(TPtr8& /*aChunk*/)

    {

    iNumParameters = 0;

    // Recalculate iNumParameters.

    for (TUint i(EParameter1); (i <= KMaxParameters); i++)

        {

        if (TMTPTypeFlatBase::Uint32(i) != 0)

            {

            iNumParameters = i - EParameter1 + 1;

            }

        }

    return NULL;

    }

EXPORT_C const TMTPTypeFlatBase::TElementInfo& TMTPUsbControlRequestDeviceStatus::ElementInfo(TInt aElementId) const

    {

    __ASSERT_DEBUG((aElementId < ENumElements), User::Invariant());

    return iElementInfo[aElementId];

    }