// 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 "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:

//

/**

 @internalComponent

*/

#include <mtp/mtpprotocolconstants.h>

#include "ptpipdatatypes.h"

#include "tptpipresponsepayload.h"

// Dataset element metadata.

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

    {

        {EMTPTypeUINT16, 0,  KMTPTypeUINT16Size},   // EResponseCode

        {EMTPTypeUINT32, 2,  KMTPTypeUINT32Size},   // ETransactionId

        {EMTPTypeUINT32, 6,  KMTPTypeUINT32Size},   // EParameter1

        {EMTPTypeUINT32, 10,  KMTPTypeUINT32Size},  // EParameter2

        {EMTPTypeUINT32, 14,  KMTPTypeUINT32Size},  // EParameter3

        {EMTPTypeUINT32, 18,  KMTPTypeUINT32Size},  // EParameter4

        {EMTPTypeUINT32, 22,  KMTPTypeUINT32Size}   // EParameter5

    };

/**

 Constructor.

 */

EXPORT_C TPTPIPTypeResponsePayload::TPTPIPTypeResponsePayload() :

	iElementInfo(iElementMetaData, ENumElements),

	iBuffer(KSize),

	//iNumParameters(0)

	iMaxSetParam(0)

	{

	SetBuffer(iBuffer);

	}

/**

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

 @return the number of set parameters.

 */

EXPORT_C TUint TPTPIPTypeResponsePayload::NumParameters() const

	{

	return (iMaxSetParam > 0 )? (iMaxSetParam - EParameter1 + 1) : 0;

	//return iMaxSetParam - EParameter1 + 1;

	}

/**

 Copies up to five parameter values into the parameter block dataset from the specified dataset. 

 The paramters to be copied should be non null paramter or valid null paramter.

 @param aFrom The parameter values source dataset. This dataset should define three or five contiguous 32-bit parameter values starting at the specified offset.

 @param aParamStartOffset The element ID of the first in the set of contiguous 

 source dataset parameter values.

 @param aParamEndOffset The element ID of the last in the set of contiguous 

 source dataset parameter values.

 @param aIsNullParamValid a boolean value to check if a null parameter is valid. A value of ETrue means a null parameter is valid; EFalse means invalid.

 @param aNumOfNullParam the number of valid null parameters to be copied.

 */

EXPORT_C void TPTPIPTypeResponsePayload::CopyIn ( 	const TMTPTypeFlatBase& aFrom,

													TUint aParamStartOffset, TUint aParamEndOffset,

													TBool aIsNullParamValid, TUint aNumOfNullParam)

	{

	__ASSERT_DEBUG((aParamEndOffset >= aParamStartOffset && (aParamEndOffset - aParamStartOffset + 1) <= ENumElements), User::Invariant());

	TUint32 parameter = KMTPNotSpecified32;

	TUint numberOfNullParam = 0;

	for (TUint t(EParameter1), s(aParamStartOffset); s <= aParamEndOffset; t++, s++)	

		{

		parameter = aFrom.Uint32(s);

		if (parameter != KMTPNotSpecified32)

		    {

		    SetUint32(t, parameter);

		    }

		else if(aIsNullParamValid && (numberOfNullParam < aNumOfNullParam))

		    {

		    SetUint32(t, parameter);

		    numberOfNullParam++;

		    }

		}

	}

/**

 Copies the non-null parameter values from the parameter block dataset into the specified dataset. 

 Note: the number of parameters to be copied out depends on two conditions:

 1. The number of parameters contained in this parameter block dataset.

 2. The number of parameters to be copied out to the parameter values sink dataset, 

 which is (aParamEndOffset - aParamStartOffset + 1) by the caller.

 @param aTo The parameter values sink dataset. This dataset should define three or five contiguous 32-bit parameter values starting at the specified offset.

 @param aParamStartOffset the element ID of the first in the set of contiguous sink dataset parameter values.

 @param aParamEndOffset the element ID of the last in the set of contiguous sink dataset parameter values.

 */

EXPORT_C void TPTPIPTypeResponsePayload::CopyOut( 	TMTPTypeFlatBase& aTo,

													TUint aParamStartOffset, TUint aParamEndOffset)

	{

	__ASSERT_DEBUG((aParamEndOffset >= aParamStartOffset && (aParamEndOffset - aParamStartOffset + 1) <= ENumElements), User::Invariant());

//	TUint loopCount = aParamEndOffset - aParamStartOffset;

	for (TUint s(EParameter1), t(aParamStartOffset); (s <= iMaxSetParam && t <= aParamEndOffset); s++, t++)

		{

		aTo.SetUint32((t), Uint32(s));

		}

	}

/**

 Resets the dataset.

 */

EXPORT_C void TPTPIPTypeResponsePayload::Reset()

	{

	TMTPTypeFlatBase::Reset();

	//iNumParameters = 0;

	iMaxSetParam = 0;

	}

/**

 Setter for the response op code.

 */

EXPORT_C void TPTPIPTypeResponsePayload::SetUint16(TInt aElementId, TUint16 aData)

	{

	__ASSERT_DEBUG((aElementId == EResponseCode), User::Invariant());

	TMTPTypeFlatBase::SetUint16(aElementId, aData);

	}

/**

 Getter for the response op code. 

 */

EXPORT_C TUint16 TPTPIPTypeResponsePayload::Uint16(TInt aElementId) const

	{

	__ASSERT_DEBUG((aElementId == EResponseCode), User::Invariant());

	return TMTPTypeFlatBase::Uint16(aElementId);

	}

/**

 Setter for the parameters and tran id

 */

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

	{

	__ASSERT_DEBUG((aElementId != EResponseCode), User::Invariant());

	if (aElementId >= EParameter1)

		{

		if (aElementId > iMaxSetParam)

			iMaxSetParam = aElementId;		

		/**

		// Recalculate iNumParameters.

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

		if (num > iNumParameters)

			{

			iNumParameters = num;

			}

			*/

		}

	//  Set the element value.

	TMTPTypeFlatBase::SetUint32(aElementId, aData);

	}

/**

 Getter for the parameters and tran id. 

 */

EXPORT_C TUint32 TPTPIPTypeResponsePayload::Uint32(TInt aElementId) const

	{

//	__ASSERT_DEBUG((aElementId < iMaxSetParam ), User::Invariant());

//	__ASSERT_DEBUG((aElementId != EResponseCode), User::Invariant());

	return TMTPTypeFlatBase::Uint32(aElementId);

	}

EXPORT_C TInt TPTPIPTypeResponsePayload::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 TPTPIPTypeResponsePayload::Size() const

	{

	return (NumParameters() * KMTPTypeUINT32Size + KHeaderElementsSize);

	}

EXPORT_C TUint TPTPIPTypeResponsePayload::Type() const

	{

	return EPTPIPTypeResponsePayload;

	}

EXPORT_C TBool TPTPIPTypeResponsePayload::CommitRequired() const

	{

	return ETrue;

	}

/**

 todo: optimise, start from 5, break on set. 

 */

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

	{

	//iNumParameters = 0;

	// Recalculate iNumParameters.

	for (TUint i(EParameter1); (i <= EParameter5); i++)

		{

		if (TMTPTypeFlatBase::Uint32(i) != KMTPNotSpecified32)

			{

			//iNumParameters = (i + 1);

				iMaxSetParam = i;

			}

		}

	return NULL;

	}

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

	{

	return iElementInfo[aElementId];

	}