kernel/eka/include/drivers/dma.inl
changeset 0 a41df078684a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kernel/eka/include/drivers/dma.inl	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,147 @@
+// 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);
+	}
+
+//---