sl@0: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0""
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // include/drivers/dma_v1.inl
sl@0: // DMA framework public inline functions
sl@0: // This file should not be modified when porting the DMA framework to
sl@0: // new hardware.
sl@0: // TDmaChannel
sl@0: // 
sl@0: // WARNING: This file contains some APIs which are internal and are subject
sl@0: //          to change without noticed. Such APIs should therefore not be used
sl@0: //          outside the Kernel and Hardware Services package.
sl@0: //
sl@0: 
sl@0: inline void TDmaChannel::Wait()
sl@0: 	{
sl@0: 	NKern::FMWait(&iLock);
sl@0: 	}
sl@0: 
sl@0: inline void TDmaChannel::Signal()
sl@0: 	{
sl@0: 	NKern::FMSignal(&iLock);
sl@0: 	}
sl@0: 
sl@0: inline TBool TDmaChannel::Flash()
sl@0: 	{
sl@0: 	return NKern::FMFlash(&iLock);
sl@0: 	}
sl@0: 
sl@0: inline TBool TDmaChannel::IsOpened() const
sl@0: 	{
sl@0: 	return iController != NULL;
sl@0: 	}
sl@0: 
sl@0: inline TBool TDmaChannel::IsQueueEmpty() const
sl@0: 	{
sl@0: 	return const_cast<TDmaChannel*>(this)->iReqQ.IsEmpty();
sl@0: 	}
sl@0: 
sl@0: inline TUint32 TDmaChannel::PslId() const
sl@0: 	{
sl@0: 	return iPslId;
sl@0: 	}
sl@0: 
sl@0: inline TInt TDmaChannel::FailNext(TInt /*aFragmentCount*/)
sl@0: 	{
sl@0: 	return iController->FailNext(*this);
sl@0: 	}
sl@0: 
sl@0: inline TInt TDmaChannel::MissNextInterrupts(TInt aInterruptCount)
sl@0: 	{
sl@0: 	return iController->MissNextInterrupts(*this, aInterruptCount);
sl@0: 	}
sl@0: 
sl@0: /** Function allowing platform-specific layer to extend API with new
sl@0: 	channel-specific operations.
sl@0:  	@param aCmd Command identifier.  Negative values are reserved for Symbian use.
sl@0: 	@param aArg PSL-specific
sl@0: 	@return KErrNotSupported if aCmd is not supported.  PSL-specific value otherwise.
sl@0:  */
sl@0: 
sl@0: inline TInt TDmaChannel::Extension(TInt aCmd, TAny* aArg)
sl@0: 	{
sl@0: 	return iController->Extension(*this, aCmd, aArg);
sl@0: 	}
sl@0: 
sl@0: inline const TDmac* TDmaChannel::Controller() const
sl@0: 	{
sl@0: 	return iController;
sl@0: 	}
sl@0: 
sl@0: inline TInt TDmaChannel::MaxTransferSize(TUint aFlags, TUint32 aPslInfo)
sl@0: 	{
sl@0: 	return iController->MaxTransferSize(*this, aFlags, aPslInfo);
sl@0: 	}
sl@0: 
sl@0: inline TUint TDmaChannel::MemAlignMask(TUint aFlags, TUint32 aPslInfo)
sl@0: 	{
sl@0: 	return iController->MemAlignMask(*this, aFlags, aPslInfo);
sl@0: 	}
sl@0: 
sl@0: // DDmaRequest
sl@0: 
sl@0: /** Called when request is removed from request queue in channel */
sl@0: 
sl@0: inline void DDmaRequest::OnDeque()
sl@0: 	{
sl@0: 	iQueued = EFalse;
sl@0: 	iLastHdr->iNext = NULL;
sl@0: 	iChannel.DoUnlink(*iLastHdr);
sl@0: 	}
sl@0: 
sl@0: // TDmac
sl@0: 
sl@0: inline void TDmac::Wait()
sl@0: 	{
sl@0: 	NKern::FMWait(&iLock);
sl@0: 	}
sl@0: 
sl@0: inline void TDmac::Signal()
sl@0: 	{
sl@0: 	NKern::FMSignal(&iLock);
sl@0: 	}
sl@0: 
sl@0: inline SDmaPseudoDes& TDmac::HdrToDes(const SDmaDesHdr& aHdr) const
sl@0: 	{
sl@0: 	return static_cast<SDmaPseudoDes*>(iDesPool)[&aHdr - iHdrPool];
sl@0: 	}
sl@0: 
sl@0: inline TAny* TDmac::HdrToHwDes(const SDmaDesHdr& aHdr) const
sl@0: 	{
sl@0: 	return static_cast<TUint8*>(iDesPool) + iDesSize*(&aHdr - iHdrPool);
sl@0: 	}
sl@0: 
sl@0: inline TUint32 TDmac::DesLinToPhys(TAny* aDes) const
sl@0: 	{
sl@0: #ifdef __WINS__
sl@0: 	(void)aDes;
sl@0: 	return 0xDEADBEEF;
sl@0: #else
sl@0: 	return iHwDesChunk->iPhysAddr + ((TLinAddr)aDes - iHwDesChunk->iLinAddr);
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: // DmaChannelMgr
sl@0: 
sl@0: inline void DmaChannelMgr::Wait()
sl@0: 	{
sl@0: 	NKern::FMWait(&Lock);
sl@0: 	}
sl@0: 
sl@0: inline void DmaChannelMgr::Signal()
sl@0: 	{
sl@0: 	NKern::FMSignal(&Lock);
sl@0: 	}
sl@0: 
sl@0: //---