bsptemplate/asspandvariant/template_assp/dmapsl.cpp
changeset 45 329ab0095843
parent 43 96e5fb8b040d
child 117 5b5d147c7838
--- a/bsptemplate/asspandvariant/template_assp/dmapsl.cpp	Thu Jan 07 13:38:45 2010 +0200
+++ b/bsptemplate/asspandvariant/template_assp/dmapsl.cpp	Mon Jan 18 21:31:10 2010 +0200
@@ -11,23 +11,26 @@
 // Contributors:
 //
 // Description:
-// template\template_assp\dmapsl.cpp
+// bsptemplate/asspvariant/template_assp/dmapsl.cpp
 // Template DMA Platform Specific Layer (PSL).
-// 
+//
 //
 
 
 #include <kernel/kern_priv.h>
 #include <template_assp.h>									// /assp/template_assp/
+
 #include <drivers/dma.h>
+#include <drivers/dma_hai.h>
+
 
 // Debug support
-static const char KDmaPanicCat[] = "DMA PSL";
+static const char KDmaPanicCat[] = "DMA PSL - " __FILE__;
 
-static const TInt KMaxTransferLen = 0x1FE0;					// max transfer length for this DMAC
-static const TInt KMemAlignMask = 7;				  // memory addresses passed to DMAC must be multiple of 8
-static const TInt KChannelCount = 16;						// we got 16 channels
-static const TInt KDesCount = 1024;							// DMA descriptor count
+static const TInt KMaxTransferLen = 0x1FE0;	// max transfer length for this DMAC
+static const TInt KMemAlignMask = 7; // memory addresses passed to DMAC must be multiple of 8
+static const TInt KChannelCount = 16;			// we got 16 channels
+static const TInt KDesCount = 160;				// Initial DMA descriptor count
 
 
 class TDmaDesc
@@ -49,6 +52,9 @@
 // Test Support
 //////////////////////////////////////////////////////////////////////////////
 
+/**
+TO DO: Fill in to provide information to the V1 test harness (t_dma.exe)
+*/
 TDmaTestInfo TestInfo =
 	{
 	0,
@@ -71,6 +77,26 @@
 	return TestInfo;
 	}
 
+/**
+TO DO: Fill in to provide information to the V2 test harness (t_dma2.exe)
+*/
+TDmaV2TestInfo TestInfov2 =
+	{
+	0,
+	0,
+	0,
+	0,
+	{0},
+	0,
+	{0},
+	0,
+	{0}
+	};
+
+EXPORT_C const TDmaV2TestInfo& DmaTestInfoV2()
+	{
+	return TestInfov2;
+	}
 
 //////////////////////////////////////////////////////////////////////////////
 // Helper Functions
@@ -85,14 +111,14 @@
 	}
 
 
-static TUint32 DcmdReg(TInt aCount, TUint aFlags, TUint32 aPslInfo)
+static TUint32 DmaCmdReg(TUint aCount, TUint aFlags, TUint32 aSrcPslInfo, TUint32 aDstPslInfo)
 //
 // Returns value to set in DMA command register or in descriptor command field.
 //
 	{
 	// TO DO: Construct CMD word from input values.
 	// The return value should reflect the actual control word.
-	return (aCount | aFlags | aPslInfo);
+	return (aCount | aFlags | aSrcPslInfo | aDstPslInfo);
 	}
 
 
@@ -119,14 +145,15 @@
 	TInt Create();
 private:
 	// from TDmac (PIL pure virtual)
-	virtual void Transfer(const TDmaChannel& aChannel, const SDmaDesHdr& aHdr);
 	virtual void StopTransfer(const TDmaChannel& aChannel);
 	virtual TBool IsIdle(const TDmaChannel& aChannel);
-	virtual TInt MaxTransferSize(TDmaChannel& aChannel, TUint aFlags, TUint32 aPslInfo);
-	virtual TUint MemAlignMask(TDmaChannel& aChannel, TUint aFlags, TUint32 aPslInfo);
+	virtual TUint MaxTransferLength(TDmaChannel& aChannel, TUint aSrcFlags,
+									TUint aDstFlags, TUint32 aPslInfo);
+	virtual TUint AddressAlignMask(TDmaChannel& aChannel, TUint aSrcFlags,
+								   TUint aDstFlags, TUint32 aPslInfo);
 	// from TDmac (PIL virtual)
-	virtual void InitHwDes(const SDmaDesHdr& aHdr, TUint32 aSrc, TUint32 aDest, TInt aCount,
- 						   TUint aFlags, TUint32 aPslInfo, TUint32 aCookie);
+	virtual void Transfer(const TDmaChannel& aChannel, const SDmaDesHdr& aHdr);
+	virtual TInt InitHwDes(const SDmaDesHdr& aHdr, const TDmaTransferArgs& aTransferArgs);
 	virtual void ChainHwDes(const SDmaDesHdr& aHdr, const SDmaDesHdr& aNextHdr);
 	virtual void AppendHwDes(const TDmaChannel& aChannel, const SDmaDesHdr& aLastHdr,
 							 const SDmaDesHdr& aNewHdr);
@@ -140,15 +167,16 @@
 	TTemplateSgChannel iChannels[KChannelCount];
 	};
 
+
 static TTemplateDmac Controller;
 
+
 const TDmac::SCreateInfo TTemplateDmac::KInfo =
 	{
-	KChannelCount,
-	KDesCount,
-	TDmac::KCapsBitHwDes,
-	sizeof(TDmaDesc),
-	EMapAttrSupRw | EMapAttrFullyBlocking
+	ETrue,													// iCapsHwDes
+	KDesCount,												// iDesCount
+	sizeof(TDmaDesc),										// iDesSize
+	EMapAttrSupRw | EMapAttrFullyBlocking					// iDesChunkAttribs
 	};
 
 
@@ -173,7 +201,7 @@
 			{
 			TDmaDesc* pD = HdrToHwDes(*iFreeHdr);
 			iChannels[i].iTmpDes = pD;
-			iChannels[i].iTmpDesPhysAddr = DesLinToPhys(pD);
+			iChannels[i].iTmpDesPhysAddr = HwDesLinToPhys(pD);
 			iFreeHdr = iFreeHdr->iNext;
 			}
 		r = Interrupt::Bind(EAsspIntIdDma, Isr, this);
@@ -237,9 +265,10 @@
 	}
 
 
-TInt TTemplateDmac::MaxTransferSize(TDmaChannel& /*aChannel*/, TUint /*aFlags*/, TUint32 /*aPslInfo*/)
+TUint TTemplateDmac::MaxTransferLength(TDmaChannel& /*aChannel*/, TUint /*aSrcFlags*/,
+									   TUint /*aDstFlags*/, TUint32 /*aPslInfo*/)
 //
-// Returns the maximum transfer size for a given transfer.
+// Returns the maximum transfer length in bytes for a given transfer.
 //
 	{
 	// TO DO: Determine the proper return value, based on the arguments.
@@ -249,7 +278,8 @@
 	}
 
 
-TUint TTemplateDmac::MemAlignMask(TDmaChannel& /*aChannel*/, TUint /*aFlags*/, TUint32 /*aPslInfo*/)
+TUint TTemplateDmac::AddressAlignMask(TDmaChannel& aChannel, TUint /*aSrcFlags*/,
+									  TUint /*aDstFlags*/, TUint32 /*aPslInfo*/)
 //
 // Returns the memory buffer alignment restrictions mask for a given transfer.
 //
@@ -261,12 +291,12 @@
 	}
 
 
-void TTemplateDmac::InitHwDes(const SDmaDesHdr& aHdr, TUint32 aSrc, TUint32 aDest, TInt aCount,
-							  TUint aFlags, TUint32 aPslInfo, TUint32 /*aCookie*/)
+TInt TTemplateDmac::InitHwDes(const SDmaDesHdr& aHdr, const TDmaTransferArgs& aTransferArgs)
 //
-// Sets up (from a passed in request) the descriptor with that fragment's source and destination address,
-// the fragment size, and the (driver/DMA controller) specific transfer parameters (mem/peripheral,
-// burst size, transfer width).
+// Sets up (from a passed in request) the descriptor with that fragment's
+// source and destination address, the fragment size, and the (driver/DMA
+// controller) specific transfer parameters (mem/peripheral, burst size,
+// transfer width).
 //
 	{
 	TDmaDesc* pD = HdrToHwDes(aHdr);
@@ -276,10 +306,15 @@
 	// Unaligned descriptor? Bug in generic layer!
 	__DMA_ASSERTD(IsHwDesAligned(pD));
 
-	pD->iSrcAddr = (aFlags & KDmaPhysAddrSrc) ? aSrc : Epoc::LinearToPhysical(aSrc);
-	pD->iDestAddr = (aFlags & KDmaPhysAddrDest) ? aDest : Epoc::LinearToPhysical(aDest);
-	pD->iCmd = DcmdReg(aCount, aFlags, aPslInfo);
+	const TDmaTransferConfig& src = aTransferArgs.iSrcConfig;
+	const TDmaTransferConfig& dst = aTransferArgs.iDstConfig;
+	pD->iSrcAddr  = (src.iFlags & KDmaPhysAddr) ? src.iAddr : Epoc::LinearToPhysical(src.iAddr);
+	pD->iDestAddr = (dst.iFlags & KDmaPhysAddr) ? dst.iAddr : Epoc::LinearToPhysical(dst.iAddr);
+	pD->iCmd = DmaCmdReg(aTransferArgs.iTransferCount, aTransferArgs.iFlags,
+					   src.iPslTargetInfo, dst.iPslTargetInfo);
 	pD->iDescAddr = TDmaDesc::KStopBitMask;
+
+	return KErrNone;
 	}
 
 
@@ -299,7 +334,7 @@
 
 	// TO DO: Modify pD->iCmd so that no end-of-transfer interrupt gets raised any longer.
 
-	pD->iDescAddr = DesLinToPhys(pN);
+	pD->iDescAddr = HwDesLinToPhys(pN);
 	}
 
 
@@ -319,7 +354,7 @@
 	// Unaligned descriptor? Bug in generic layer!
 	__DMA_ASSERTD(IsHwDesAligned(pL) && IsHwDesAligned(pN));
 
-	TPhysAddr newPhys = DesLinToPhys(pN);
+	TPhysAddr newPhys = HwDesLinToPhys(pN);
 
 	const TInt irq = NKern::DisableAllInterrupts();
 	StopTransfer(aChannel);
@@ -363,7 +398,7 @@
 
 	// TO DO: Implement the behaviour described above, call HandleIsr().
 
-	HandleIsr(me.iChannels[5], 0);							// Example
+	HandleIsr(me.iChannels[5], EDmaCallbackRequestCompletion, ETrue); // Example
 
 	}
 
@@ -381,7 +416,7 @@
 // Channel Opening/Closing (Channel Allocator)
 //////////////////////////////////////////////////////////////////////////////
 
-TDmaChannel* DmaChannelMgr::Open(TUint32 aOpenId)
+TDmaChannel* DmaChannelMgr::Open(TUint32 aOpenId, TBool /*aDynChannel*/, TUint /*aPriority*/)
 //
 //
 //
@@ -392,7 +427,9 @@
 
 	TDmaChannel* pC = Controller.iChannels + aOpenId;
 	if (pC->IsOpened())
+		{
 		pC = NULL;
+		}
 	else
 		{
 		pC->iController = &Controller;
@@ -403,7 +440,7 @@
 	}
 
 
-void DmaChannelMgr::Close(TDmaChannel* /* aChannel */)
+void DmaChannelMgr::Close(TDmaChannel* /*aChannel*/)
 //
 //
 //
@@ -412,7 +449,7 @@
 	}
 
 
-TInt DmaChannelMgr::StaticExtension(TInt /* aCmd */, TAny* /* aArg */)
+TInt DmaChannelMgr::StaticExtension(TInt /*aCmd*/, TAny* /*aArg*/)
 //
 //
 //
@@ -432,5 +469,10 @@
 	{
 	__KTRACE_OPT2(KBOOT, KDMA, Kern::Printf("Starting DMA Extension"));
 
+	const TInt r = DmaChannelMgr::Initialise();
+	if (r != KErrNone)
+		{
+		return r;
+		}
 	return Controller.Create();
 	}