sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released
sl@0: */
sl@0: #ifndef __CRYPTOLDD__
sl@0: #define __CRYPTOLDD__
sl@0: #include <e32cmn.h>
sl@0: #include <e32ver.h>
sl@0: #include <e32def.h>
sl@0: #include "cryptojobs.h"
sl@0: 
sl@0: 
sl@0: class DCryptoLddChannelFactory : public DLogicalDevice
sl@0: 	{
sl@0: public:
sl@0: 	DCryptoLddChannelFactory();
sl@0: 	~DCryptoLddChannelFactory();
sl@0: 	virtual TInt Install();
sl@0: 	virtual void GetCaps(TDes8& aDes) const;
sl@0: 	virtual TInt Create(DLogicalChannelBase*& aChannel);
sl@0: 
sl@0: 	// The job scheduler for the Random h/w
sl@0: 	DCryptoJobScheduler iJSRandom;
sl@0: 
sl@0: 	// The job scheduler for the AES h/w
sl@0: 	DCryptoJobScheduler iJSAes;
sl@0: 	};
sl@0: 
sl@0: class DCryptoPddChannel;
sl@0: /**
sl@0:   Logical Channel classes for 'Crypto'
sl@0: */
sl@0: 
sl@0: /**
sl@0:    DLddChanRandom
sl@0: 
sl@0:    This class just exists to keep all the LDD Chan variables for
sl@0:    dealing with Random requests in one place.
sl@0: */
sl@0: class DCryptoLddChannel;
sl@0: class DLddChanRandom : public DBase, public MCryptoJobCallbacks
sl@0: 	{
sl@0: public:
sl@0: 	DLddChanRandom(DCryptoLddChannel &aParent);
sl@0: 	// Cleanup must be done by DCryptoLddChannel destructor because
sl@0: 	// by the time our destructor gets called the DCryptoLddChannel
sl@0: 	// has already been destroyed.
sl@0: 
sl@0: 	// Functions are virtual so PDD can call them via a vtable instead
sl@0: 	// of linking directly to them.
sl@0: 
sl@0:     virtual TInt Random(TRequestStatus* aStatus,TDes8* aBuffer);
sl@0: 
sl@0: 	// Callbacks for PDD
sl@0: 	virtual TInt DataRequired();
sl@0: 	virtual TInt DataAvailable();
sl@0: 	virtual void JobComplete(TInt aResult);
sl@0: 	
sl@0: 	/**
sl@0: 	   Cancel a user request
sl@0: 	*/
sl@0: 	virtual void RandomCancel();
sl@0: private:
sl@0: 	DCryptoLddChannel &iParent;
sl@0:     // Members used for processing a Random request
sl@0: 	
sl@0:     TRequestStatus* iRandomStatus;	// User request
sl@0:     TDes8* iRandomDescriptor;		// User descriptor
sl@0: 	TInt iRequestLength;
sl@0: 	TInt iCurrentIndex;
sl@0: 
sl@0: 	CryptoJobRandom *iJob; // Ptr to PDD Random job (not owned by us)
sl@0: 	};
sl@0: 
sl@0: /**
sl@0:    DLddChanAes
sl@0: 
sl@0:    This class just exists to keep all the LDD Chan variables for
sl@0:    dealing with Aes requests in one place.
sl@0: */
sl@0: class DCryptoLddChannel;
sl@0: class DLddChanAes : public DBase, public MCryptoJobCallbacks
sl@0: 	{
sl@0: public:
sl@0: 	DLddChanAes(DCryptoLddChannel &aParent);
sl@0: 	// Cleanup must be done by DCryptoLddChannel destructor because
sl@0: 	// by the time our destructor gets called the DCryptoLddChannel
sl@0: 	// has already been destroyed.
sl@0: 
sl@0: 	// Functions are virtual so PDD can call them via a vtable instead
sl@0: 	// of linking directly to them.
sl@0: 
sl@0:     virtual TInt SetAesConfig(const TDesC8 *aConfigBuf);
sl@0:     virtual TInt AesWrite(TRequestStatus *aStatus, TDesC8 *aBuffer);
sl@0:     virtual TInt AesRead(TRequestStatus *aStatus, TDes8 *aBuffer, TUint32 aLength);
sl@0: 
sl@0: 	// Callbacks for PDD
sl@0: 	virtual TInt DataRequired();
sl@0: 	virtual TInt DataAvailable();
sl@0: 	virtual void JobComplete(TInt aResult);
sl@0: 
sl@0: 	/**
sl@0: 	   Cancel a user request
sl@0: 	*/
sl@0: 	virtual void CancelRead();
sl@0: 	virtual void CancelWrite();
sl@0: private:
sl@0: 	DCryptoLddChannel &iParent;
sl@0:     // Members used for processing a Aes request
sl@0: 	
sl@0:     TRequestStatus *iAesWriteStatus;	// User request
sl@0:     TDesC8 *iAesWriteDescriptor;		// User descriptor
sl@0: 	TInt iWriteRequestLength;
sl@0: 	TInt iCurrentUserWriteIndex;
sl@0: 
sl@0:     TRequestStatus *iAesReadStatus;	// User request
sl@0:     TDes8 *iAesReadDescriptor;		// User descriptor
sl@0: 	TInt iReadRequestLength;
sl@0: 	TInt iOriginalUserReadDescLength;
sl@0: 	TInt iCurrentUserReadIndex;
sl@0: 
sl@0: 	TBool iEncrypt;
sl@0: 	RCryptoDriver::TChainingMode iMode;
sl@0: 	TInt iKeyLengthBytes;
sl@0: 
sl@0: 	CryptoJobAes *iJob; // Ptr to PDD AES job (not owned by us)
sl@0: 	};
sl@0: 
sl@0: 
sl@0: class DCryptoLddChannel : public DLogicalChannel
sl@0:     {
sl@0: public:
sl@0:     DCryptoLddChannel();
sl@0:     virtual ~DCryptoLddChannel();
sl@0:     // Inherited from DObject
sl@0:     virtual TInt RequestUserHandle(DThread* aThread, TOwnerType aType);
sl@0:     // Inherited from DLogicalChannelBase
sl@0:     virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
sl@0:     // Inherited from DLogicalChannel
sl@0:     virtual void HandleMsg(TMessageBase* aMsg);
sl@0: 
sl@0:     // Accessor for the LDD Factory
sl@0: 	inline DCryptoLddChannelFactory *LddFactory() const;
sl@0: 	
sl@0: 	DLddChanRandom iLddChanRandom;
sl@0: 	DLddChanAes iLddChanAes;
sl@0: 	
sl@0: private:
sl@0: 	friend class DLddChanRandom;
sl@0: 	friend class DLddChanAes;
sl@0: 	
sl@0:     // Panic reasons
sl@0:     enum TPanic
sl@0:         {
sl@0:         ERequestAlreadyPending = 1
sl@0:         };
sl@0:     // Implementation for the differnt kinds of requests send through RBusLogicalChannel
sl@0:     TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
sl@0:     TInt DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2);
sl@0:     void DoCancel(TUint aMask);
sl@0: 
sl@0:     // Accessor for the PDD
sl@0: 	inline DCryptoPddChannel* PddChan() const;
sl@0: 
sl@0:     // Query h/w versions
sl@0:     TInt GetHwVersions(TDes8* aHwVersionsBuf) const;
sl@0: 
sl@0:     // Methods for configuration
sl@0:     TInt GetConfig(TDes8* aConfigBuf) const;
sl@0:     TInt SetConfig(const TDesC8* aConfigBuf);
sl@0: 	void CurrentConfig(RCryptoDriver::TConfig& aConfig) const;
sl@0: 
sl@0: private:
sl@0:     DThread* iClient;
sl@0:     };
sl@0: inline DCryptoLddChannelFactory *DCryptoLddChannel::LddFactory() const
sl@0: 	{
sl@0: 	return static_cast<DCryptoLddChannelFactory *>(iDevice);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: class DCryptoPddChannel : public DBase
sl@0:     {
sl@0: public:
sl@0:     virtual TDfcQue* DfcQue() = 0;
sl@0: 
sl@0:     virtual void GetHwVersions(RCryptoDriver::THwVersions& aHwVersions) const = 0;
sl@0:     virtual TInt FakeDriverSetting() const = 0;
sl@0:     virtual TInt SetFakeDriverSetting(TInt aFakeDriverSetting) = 0;
sl@0: 
sl@0: 	virtual CryptoJobRandom *GetJobRandom(TBool aAutoCreate = ETrue) = 0;
sl@0: 	virtual CryptoJobAes *GetJobAes(TBool aAutoCreate = ETrue) = 0;
sl@0: 
sl@0: 	// The LDD chan needs to be able to set this, and the Job
sl@0: 	// implementation classes need to be able to read it, so there is
sl@0: 	// no point in having accessor functions for it...
sl@0: 	DCryptoLddChannel *iCryptoLddChannel;
sl@0:     };
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: inline DCryptoPddChannel* DCryptoLddChannel::PddChan() const
sl@0:     {
sl@0: 	return static_cast<DCryptoPddChannel *>(iPdd);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: #endif