--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/navienginebsp/naviengine_assp/pci/mapman.h	Tue Sep 28 18:00:05 2010 +0100
@@ -0,0 +1,77 @@
+/*
+* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:  
+*
+*/
+
+
+
+#ifndef __MAPMAN_H__
+#define __MAPMAN_H__
+
+#include <e32cmn.h>
+
+//helper maths functions
+TUint32 Clp2(TUint32 aNumber);
+TUint32 Log2(TUint32 aNumber);
+
+class TAddressAllocator;
+class DMutex;
+
+/**
+Responsible for creating outbound mappings so that
+PCI peripherals can access system memory.
+*/
+class TMappingManager
+	{
+public:
+	TMappingManager(TInt aNumOfBars, TAddressAllocator& aAllocator, TUint32 aBaseAddress);
+	~TMappingManager();
+	TInt CreateMapping(TUint32 aPhysicalAddress, TInt aSize, TUint32& aPciAddress);
+	TInt RemoveMapping(TUint32 aPhysicalAddress);
+
+	TInt GetPciAddress(TUint32 aPhysicalAddress, TUint32& aPciAddress);
+	TInt GetPhysicalAddress(TUint32 aPciAddress, TUint32& aPhysicalAddress);
+
+private:
+	/**
+	Associates BAR with an allocated PCI address
+	*/
+	struct TMapping
+		{
+		TMapping();
+		static TBool UsedCompare(const TMapping& aKeyMapping, const TMapping& aMapping);
+		static TBool PhysAddrCompare(const TUint32*, const TMapping& aMapping);
+		static TBool ContainsPhysical(const TUint32*, const TMapping& aMapping);
+		static TBool ContainsPci(const TUint32*, const TMapping& aMapping);
+
+		inline TUint32 PciAddress(TUint32 aPhysAddress);
+		inline TUint32 PhysAddress(TUint32 aPciAddress);
+
+		TUint32 iPciAddr;
+		TUint32 iPhysAddr;
+		TUint32 iSize;
+		TBool iUsed;
+		};
+
+	void DoCreateMapping(TInt aBarIndex, TUint32 aPhysicalAddress, TInt& aSize, TUint32& aPciAddress);
+
+	TAddressAllocator& iAllocator;
+	const TInt iNumOfBars;
+	const TUint32 iBaseAddress;
+
+	RArray<TMapping> iMappings;
+	DMutex* iMutex;
+	};
+#endif // __MAPMAN_H__