// Copyright (c) 2002-2009 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:

// e32\include\drivers\dma.inl

// DMA framework public inline functions

// This file should not be modified when porting the DMA framework to

// new hardware.

// TDmaChannel

// 

// WARNING: This file contains some APIs which are internal and are subject

//          to change without noticed. Such APIs should therefore not be used

//          outside the Kernel and Hardware Services package.

//

inline void TDmaChannel::Wait()

	{

	NKern::FMWait(&iLock);

	}

inline void TDmaChannel::Signal()

	{

	NKern::FMSignal(&iLock);

	}

inline TBool TDmaChannel::Flash()

	{

	return NKern::FMFlash(&iLock);

	}

inline TBool TDmaChannel::IsOpened() const

	{

	return iController != NULL;

	}

inline TBool TDmaChannel::IsQueueEmpty() const

	{

	return const_cast<TDmaChannel*>(this)->iReqQ.IsEmpty();

	}

inline TUint32 TDmaChannel::PslId() const

	{

	return iPslId;

	}

inline TInt TDmaChannel::FailNext(TInt /*aFragmentCount*/)

	{

	return iController->FailNext(*this);

	}

inline TInt TDmaChannel::MissNextInterrupts(TInt aInterruptCount)

	{

	return iController->MissNextInterrupts(*this, aInterruptCount);

	}

/** Function allowing platform-specific layer to extend API with new

	channel-specific operations.

 	@param aCmd Command identifier.  Negative values are reserved for Symbian use.

	@param aArg PSL-specific

	@return KErrNotSupported if aCmd is not supported.  PSL-specific value otherwise.

 */

inline TInt TDmaChannel::Extension(TInt aCmd, TAny* aArg)

	{

	return iController->Extension(*this, aCmd, aArg);

	}

inline const TDmac* TDmaChannel::Controller() const

	{

	return iController;

	}

inline TInt TDmaChannel::MaxTransferSize(TUint aFlags, TUint32 aPslInfo)

	{

	return iController->MaxTransferSize(*this, aFlags, aPslInfo);

	}

inline TUint TDmaChannel::MemAlignMask(TUint aFlags, TUint32 aPslInfo)

	{

	return iController->MemAlignMask(*this, aFlags, aPslInfo);

	}

// DDmaRequest

/** Called when request is removed from request queue in channel */

inline void DDmaRequest::OnDeque()

	{

	iQueued = EFalse;

	iLastHdr->iNext = NULL;

	iChannel.DoUnlink(*iLastHdr);

	}

// TDmac

inline void TDmac::Wait()

	{

	NKern::FMWait(&iLock);

	}

inline void TDmac::Signal()

	{

	NKern::FMSignal(&iLock);

	}

inline SDmaPseudoDes& TDmac::HdrToDes(const SDmaDesHdr& aHdr) const

	{

	return static_cast<SDmaPseudoDes*>(iDesPool)[&aHdr - iHdrPool];

	}

inline TAny* TDmac::HdrToHwDes(const SDmaDesHdr& aHdr) const

	{

	return static_cast<TUint8*>(iDesPool) + iDesSize*(&aHdr - iHdrPool);

	}

inline TUint32 TDmac::DesLinToPhys(TAny* aDes) const

	{

#ifdef __WINS__

	(void)aDes;

	return 0xDEADBEEF;

#else

	return iHwDesChunk->iPhysAddr + ((TLinAddr)aDes - iHwDesChunk->iLinAddr);

#endif

	}

// DmaChannelMgr

inline void DmaChannelMgr::Wait()

	{

	NKern::FMWait(&Lock);

	}

inline void DmaChannelMgr::Signal()

	{

	NKern::FMSignal(&Lock);

	}

//---