examples/Base/IPC/AdvancedClientServerExample/driver/driver1_dev.h

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00001 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
00002 // All rights reserved.
00003 // This component and the accompanying materials are made available
00004 // under the terms of "Eclipse Public License v1.0"
00005 // which accompanies this distribution, and is available
00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
00007 //
00008 // Initial Contributors:
00009 // Nokia Corporation - initial contribution.
00010 //
00011 // Contributors:
00012 //
00013 // Description:
00014 // Kernel side interfaces to the example Logical and Physical Device Drivers
00015 //
00016 
00017 
00018 
00023 #ifndef __DRIVER1_DEV_H__
00024 #define __DRIVER1_DEV_H__
00025 
00029 class DDriver1Factory : public DLogicalDevice
00030         {
00031 public:
00032         DDriver1Factory();
00033         ~DDriver1Factory();
00034         
00035         //      Inherited from DLogicalDevice
00036         virtual TInt Install();
00037         virtual void GetCaps(TDes8& aDes) const;
00038         virtual TInt Create(DLogicalChannelBase*& aChannel);
00039         };
00040 
00041 class DDriver1;
00042 
00046 class DDriver1Channel : public DLogicalChannel
00047         {
00048 public:
00049         DDriver1Channel();
00050         virtual ~DDriver1Channel();
00051         
00052         //      Inherited from DObject
00053         virtual TInt RequestUserHandle(DThread* aThread, TOwnerType aType);
00054         
00055         // Inherited from DLogicalChannelBase
00056         virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
00057         
00058         // Inherited from DLogicalChannel
00059         virtual void HandleMsg(TMessageBase* aMsg);
00060 private:
00061         // Panic reasons
00062         enum TPanic
00063                 {
00064                 // A request was issued when one is outstanding.
00065                 ERequestAlreadyPending = 1
00066                 };
00067                 
00068         // Implementation of the different kinds of messages sent through RBusLogicalChannel
00069         TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
00070         TInt DoRequest(TInt aReqNo, TRequestStatus* aStatus, TAny* a1, TAny* a2);
00071         void DoCancel(TUint aMask);
00072         // Accessor for the PDD
00073         inline DDriver1* Pdd();
00074         // Methods for configuration
00075         TInt GetConfig(TDes8* aConfigBuf);
00076         TInt SetConfig(const TDesC8* aConfigBuf);
00077         void CurrentConfig(RDriver1::TConfig& aConfig);
00078         // Methods for processing a SendData request
00079         TInt SendData(TRequestStatus* aStatus,const TDesC8* aData);
00080         void SendDataCancel();
00081         void DoSendDataComplete();
00082         static void SendDataDfc(TAny* aPtr);
00083         // Methods for processing a ReceiveData request
00084         TInt ReceiveData(TRequestStatus* aStatus,TDes8* aBuffer);
00085         void ReceiveDataCancel();
00086         void DoReceiveDataComplete();
00087         static void ReceiveDataDfc(TAny* aPtr);
00088 public:
00089         // Interface methods for use by PDD
00090         virtual void SendDataComplete(TInt aResult);
00091         virtual void ReceiveDataComplete(TInt aResult);
00092 private:
00093         DThread* iClient;
00094         // Members used for processing a SendData request
00095         TRequestStatus* iSendDataStatus;
00096         TDfc iSendDataDfc;
00097         TInt iSendDataResult;
00098         TBuf8<256> iSendDataBuffer;
00099         // Members used for processing a ReceiveData request
00100         TDes8* iReceiveDataDescriptor;
00101         TRequestStatus* iReceiveDataStatus;
00102         TDfc iReceiveDataDfc;
00103         TInt iReceiveDataResult;
00104         TBuf8<256> iReceiveDataBuffer;
00105         };
00106 
00107 inline DDriver1* DDriver1Channel::Pdd()
00108         { return (DDriver1*)iPdd; }
00109 
00113 class DDriver1 : public DBase
00114         {
00115 public:
00119         class TCaps
00120                 {
00121         public:
00122                 TVersion iVersion;
00123                 };
00124 public:
00125         virtual TInt BufferSize() const =0;
00126         virtual TInt Speed() const =0;
00127         virtual TInt SetSpeed(TInt aSpeed) =0;
00128         virtual TInt SendData(const TDesC8& aData) =0;
00129         virtual void SendDataCancel() =0;
00130         virtual TInt ReceiveData(TDes8& aBuffer) =0;
00131         virtual void ReceiveDataCancel() =0;
00132 public:
00133         DDriver1Channel* iLdd;
00134         };
00135 
00136 #endif
00137
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Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License v1.0.