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