cryptoplugins/cryptospiplugins/test/h4drv/crypto_h4/cryptoh4aes.h
changeset 8 35751d3474b7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/test/h4drv/crypto_h4/cryptoh4aes.h	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,149 @@
+/*
+* Copyright (c) 2007-2009 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: 
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+#ifndef __CRYPTOH4AES__
+#define __CRYPTOH4AES__
+#include "cryptojobs.h"
+#include <drivers/dma.h>
+
+#define FAKE_DMA FakeDma
+
+//#define TDFC_WRAPPER
+
+#ifdef TDFC_WRAPPER
+class TDfcWrapper : public TDfc
+	{
+public:
+	TDfcWrapper(const TDfcWrapper &aOrig);
+	TDfcWrapper(TDfcFn aFunction, TAny* aPtr, TInt aPriority);
+	void Enque();
+private:
+	TDfcWrapper &operator=(const TDfcWrapper &aRHS);
+	void BaseEnque();
+    static void DfcWrapperFunc(TAny* aPtr);
+	TDfcFn iRealFunction;
+	TAny *iRealPtr;
+	};
+#endif
+
+class DCryptoH4Chan;
+class DLddChanAes;
+class CryptoH4JobAes : public CryptoJobAes
+	{
+public:
+	CryptoH4JobAes(DLddChanAes &aLddChanAes);
+	~CryptoH4JobAes();
+
+	void SetDfcQ(TDfcQue *aDfcQue);
+
+	virtual TUint8 *GetKeyBuffer(); // Max 32 bytes long (256bits)
+	virtual TUint8 *GetIVBuffer(); // 16 bytes long
+	virtual TUint32 MaxBytes() const;
+	virtual TUint8 *GetIOBuffer(); // MaxBytes() long
+
+	virtual void GetToPddBuffer(TUint8 * &aBuf, TUint32 &aBufLen, TBool &aMore);
+	virtual void BytesWrittenToPdd(TUint32 aBytes);
+
+	virtual void GetFromPddBuffer(TUint8 * &aBuf, TUint32 &aBufLen, TBool &aMore);
+	virtual void BytesReadFromPdd(TUint32 aBytes);
+
+	// Must be called after setting the IV (if used)
+	virtual TInt SetDetails(DCryptoJobScheduler *aJobScheduler, 
+							MCryptoJobCallbacks *aCallbacks,
+							TBool aEncrypt, 
+							TInt aKeyLength,
+							RCryptoDriver::TChainingMode aMode);
+	virtual void NotifyReadRequestLength(TUint32 aReadRequestLength);
+	virtual void HwPerfCheck();
+	
+private:	
+	// Implementations of virtual base class methods to support DCryptoJobScheduler
+	virtual void DoSlice(TBool aFirstSlice);
+	virtual TBool DoSaveState();
+	virtual void DoRestoreState();
+	virtual void DoReleaseHw();
+
+	void MaybeSetupWriteDmaToHw();
+#ifdef FAKE_DMA
+	void FakeDma();
+#endif
+
+	DLddChanAes &iLddChanAes;
+	
+	// Details of job
+	TBool iEncrypt;
+	RCryptoDriver::TChainingMode iMode;
+
+	TUint32 iKeyLengthBytes;
+	TUint32 iKey[8]; // 128, 192 or 256 bits
+	TUint32 iIV[4]; // 128 bits
+	TUint32 iSavedState[4]; // Used for CBC chaining
+
+	TUint32 iReadRequestLength;
+
+	// The AES data buffer
+	//	TUint32 iAesBuffer[2*4+4]; // Temporary buffer 8 = 2x16 bytes blocks, +4 space (which never gets used)
+	TUint32 iAesBuffer[400*4+4]; // Temporary buffer 8 = 2x16 bytes blocks, +4 space (which never gets used)
+	// There are 4 indexes into the above buffer, and after converting
+	// all to bytes indexes, and allowing for wrapping the following
+	// condition should always hold iSwReadIndex <= iHwWriteIndex <=
+	// iHwReadIndex <= iSwWriteByteOffset
+	TInt32 iSwWriteByteOffset;
+	TInt32 iHwReadIndex;
+	TInt32 iHwWriteIndex;
+	TInt32 iSwReadByteOffset;
+
+	TBool iHwRunning;
+	TInt iDmaToHwPending;
+	TInt iDmaFromHwPending;
+
+#ifdef FAKE_DMA
+	TInt iFakeDmaToHwQueued;
+	TInt iFakeDmaFromHwQueued;
+#endif
+	
+	void SetupHw(TBool aUseSavedState);
+	void SetupDma(TUint32 aPtr, TBool aToHw);
+	void StopHw();
+	static void DmaComplete(DDmaRequest::TResult aResult, TAny *aPtr);
+
+    static void DmaToHwCompleteDfc(TAny* aPtr);
+	void DoDmaToHwCompleteDfc();
+#ifdef TDFC_WRAPPER
+	TDfcWrapper iDmaToHwCompleteDfc;
+#else
+    TDfc iDmaToHwCompleteDfc;	
+#endif
+
+	void CheckIndexes() const;
+	void CompareIndexes(const char *aName, TInt32 aP1, TInt32 aP2) const;
+
+    static void DmaFromHwCompleteDfc(TAny* aPtr);
+	void DoDmaFromHwCompleteDfc();
+#ifdef TDFC_WRAPPER
+    TDfcWrapper iDmaFromHwCompleteDfc;	
+#else
+    TDfc iDmaFromHwCompleteDfc;	
+#endif
+	};
+#endif