naviengine/navienginebsp/ne1_tb/test/pci/t_pci.h
branchRCL_3
changeset 49 a4ff6126ec76
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/naviengine/navienginebsp/ne1_tb/test/pci/t_pci.h	Wed Sep 15 13:26:16 2010 +0300
@@ -0,0 +1,254 @@
+// Copyright (c) 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: This is the header file for the PCI driver test , so far implemented 
+//				only on the  Naviengine platform
+
+#ifndef __TPCI_TEST_H
+#define __TPCI_TEST_H
+
+#ifndef __KERNEL_MODE__
+#define __E32TEST_EXTENSION__
+#include <e32test.h>
+ #include <e32def_private.h>
+#endif // __KERNEL_MODE__
+
+_LIT(KPciLdd, "d_pci.ldd");
+_LIT(KPciLddFactory, "PCI_test_factory");
+_LIT(KPciTest, "PCI Test LDD");
+
+/**
+Test driver op-codes
+*/
+enum TPciTestCmd
+	{
+	EGetTestInfo,
+	EAccessConfigSpace,
+	EAccessMemorySpace,
+	EOpenPciDChunk,
+	EOpenPciPlatHwChunk,
+	EOpenPciMappedChunk,
+	EOpenPciWindowChunk,
+	ERunUnitTests
+	};
+
+/**
+Identifies a PCI Function (device) on the system
+*/
+struct TPciDevice
+	{
+	TPciDevice()
+		:iVendorId(0xFFFFFFFF), iDeviceId(0xFFFFFFFF), iInstance(0) {}
+
+	TPciDevice(TUint aVendorId, TUint aDeviceId, TInt aInstance=0)
+		:iVendorId(aVendorId), iDeviceId(aDeviceId), iInstance(aInstance) {}
+
+	TUint iVendorId;
+	TUint iDeviceId;
+	TInt iInstance; ///< Unit to open (there could be multiple devices on system)
+	};
+
+/**
+Used to send chunk size and recieve
+PCI address
+*/
+struct TPciChunkCreateInfo
+	{
+	TPciChunkCreateInfo()
+		:iSize(0), iPciAddress(NULL)
+		{
+		}
+
+	TPciChunkCreateInfo(TInt aSize, TUint& aPciAddress, TRequestStatus* aStatus=NULL)
+		:iSize(aSize), iPciAddress(&aPciAddress), iStatus(aStatus)
+		{
+		}
+	TInt iSize;
+	TUint* iPciAddress;
+	TRequestStatus* iStatus;
+	};	
+
+/**
+Information about the PSL required by the
+user side test
+*/
+struct TPciTestInfo
+	{
+	TPciDevice iDevice; ///< Probe for this
+
+	/**
+	Supplies the necessary information to test Read, Write, and
+	Modify for a word of PCI memory or configuration space
+	*/
+	struct TAddrSpaceTest
+		{
+		TAddrSpaceTest()
+			:iOffset(0), iExpectedValue(0), iReadOnlyMask(0)
+			{}
+
+		TAddrSpaceTest(TUint aOffset, TUint aExpectedValue, TUint aReadOnlyMask)
+			:iOffset(aOffset), iExpectedValue(aExpectedValue), iReadOnlyMask(aReadOnlyMask)
+			{}
+
+		/**
+		Returns a specified sub byte, or word from the whole dword
+		*/
+		inline TUint Expected(TInt aBitWidth, TInt aExtraOffset) const
+			{
+			//the right shift required to get field to bit 0
+			const TInt shift = 8 *((aExtraOffset + iOffset) % 4);
+			
+			const TUint mask = 0xFFFFFFFF >> (32-aBitWidth);
+			return (iExpectedValue >> shift) & mask;
+			}
+
+		const TUint iOffset;
+		const TUint iExpectedValue; ///< The initial value of word
+		const TUint iReadOnlyMask; ///< Mask of unwritable bits
+		//Future work, memory spaces should state a bar index
+		};
+
+
+	TAddrSpaceTest iCfgSpaceRead;
+	TAddrSpaceTest iCfgSpaceWrite;
+
+	TUint iMemSpaceIndex; ///< Memory space to select
+	TAddrSpaceTest iMemSpaceRead;
+	TAddrSpaceTest iMemSpaceWrite;
+
+	TInt iNumberOfBars; ///< Number of simultaneous mappings into PCI space
+	};
+
+class RPci;
+class TAddrSpace;
+/**
+This class encapsulates all the various read/write/and modify commands
+that can be carried out on a PCI memory space. The command is stored user
+side, and then executed on kernel side when KRun() is called.
+*/
+class TUserPciSpace
+	{
+public:
+	TUserPciSpace()
+		:iPci(NULL), iOperation(EInvalid), iBitWidth(0), iOffset(0),
+		iWriteValue(0), iClearMask(0), iSetMask(0)
+	{}
+	TUserPciSpace(RPci& aPci);
+	
+	/**
+	Perform the encapsulated read/write/or modify
+	@note Only run on kernel side
+	*/
+	TUint KRun(TAddrSpace& aAddrSpace);
+	
+	/**
+	Clone method is required so that multiple threads may
+	have their own copy of a TUserPciSpace (without knowing
+	its runtime type)
+	*/
+	virtual TUserPciSpace* Clone() const = 0;
+
+	TUint Read(TInt aBitWidth, TUint aOffset)
+		{
+		iOffset = aOffset;
+		iOperation = ERead;
+		iBitWidth = aBitWidth;
+
+		return Call();
+		}
+
+	void Write(TInt aBitWidth, TUint aOffset, TUint aValue)
+		{
+		iOffset = aOffset;
+		iOperation = EWrite;
+		iBitWidth = aBitWidth;
+		
+		iWriteValue = aValue;
+		Call();
+		}
+
+	void Modify(TInt aBitWidth, TUint aOffset, TUint aClearMask, TUint aSetMask)
+		{
+		iOffset = aOffset;
+		iOperation = EModify;
+		iBitWidth = aBitWidth;
+
+		iClearMask = aClearMask;
+		iSetMask = aSetMask;
+		Call();
+		}
+
+protected:
+	/**
+	Makes a request to iPci and passes a copy of this object to
+	the kernel side.
+	*/
+	virtual TUint Call() =0;
+
+	enum TOperation {EInvalid, ERead, EWrite, EModify};
+
+	/**
+	Pointer to a PCI device handle
+	*/
+	RPci* iPci;
+
+	TOperation iOperation; //!< Type of access to perform
+	TInt iBitWidth;
+	
+	TUint iOffset;
+	TUint32 iWriteValue;
+	TUint32 iClearMask;
+	TUint32 iSetMask;
+	};
+
+/**
+Grants access to a PCI device's (identified
+by aPci) config space from user side
+*/
+class TUserConfigSpace : public TUserPciSpace
+	{
+public:
+	TUserConfigSpace()
+		:TUserPciSpace()
+		{}
+	TUserConfigSpace(RPci& aPci);
+
+	virtual TUserPciSpace* Clone() const;
+private:
+	TUint Call();
+	};
+
+/**
+Grants access to some region of a PCI
+device's memory space. A PCI device(or function)
+may have up to 8 distinct memory spaces
+*/
+class TUserMemorySpace : public TUserPciSpace
+	{
+public:
+	TUserMemorySpace()
+		:TUserPciSpace(), iBarIndex(-1)
+		{}
+
+	TUserMemorySpace(RPci& aPci, TInt aBarIndex);	
+
+	virtual TUserPciSpace* Clone() const;
+	
+	inline TInt BarIndex() {return iBarIndex;}
+
+private:
+	TUint Call();
+
+	TInt iBarIndex; ///< Each PCI function may have up to 8 memory spaces
+	};
+
+#endif //__TPCI_TEST_H