/*

* Copyright (c) 2003-2005 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 _SDK_CARDREADER_H_

#define _SDK_CARDREADER_H_

#include <emulator.h>

#include <winscard.h>

#include <ScardReader.h>

/**

 * Smart card reader. 

 */

class SdkScardLauncher;

class CSdkCardReader : public CActive, public MScardReader

{

private:

    SdkScardLauncher* iLauncher;

    SCARD_READERSTATE iReaderState;

    SCARDHANDLE iCardHandle;

    TRequestStatus iEventThreadStatus;

    RSemaphore iRequest;

    RThread iEventThread;

    RThread iRequestThread;

    TPtrC iName;

    TReaderID iId;

    TInt iRefCount;

    TBool iFlags; // See below:

    enum TFlags {

        EFlagHaveSemaphore  = 0x0001,

        EFlagRequestThread  = 0x0002,

        EFlagEventThread    = 0x0004,

        EFlagCardIn         = 0x0008,

        EFlagOpen           = 0x0010,

        EFlagHasId          = 0x0020,

        EFlagDead           = 0x0040

    };

public: 

    static CSdkCardReader* NewL(SdkScardLauncher* aLauncher,

                                const TText* aName);

    virtual ~CSdkCardReader();

    inline TBool HasId() const;

    inline void SetId(TReaderID aId);

    inline TReaderID Id() const;

    inline TBool MatchId(TReaderID aId) const;

    inline const TDesC& Name() const;

    inline void AddRef();

    TInt ReleaseRef();

    // CActive

    virtual void DoCancel();

    virtual void RunL();

    // MScardReader

    virtual void Open(TRequestStatus& aStatus); 

    virtual TInt Close();

    virtual void CancelTransmit();

    virtual TInt GetATR(TScardATR& anATR);

    virtual TBool GetCapabilities(TRequestStatus& aStatus, 

                                  const TInt32 aTag,

                                  TPtr8& aValue,

                                  const TInt32 aTimeout);

    virtual void TransmitToCard(TRequestStatus& aStatus, 

                                const TPtrC8& aCommand, 

                                TPtr8& aResponse,

                                const TInt32 aTimeout);

private:

    CSdkCardReader(SdkScardLauncher* aLauncher, const TText* aName);

    void ConstructL();

    void EventThread();

    static TInt EventThread(TAny* aParam);

    void Notify(TScardServiceStatus aEvent);

    void SubmitEventRequest();

};

inline TBool CSdkCardReader::HasId() const

    { return ((iFlags & EFlagHasId) != 0); }

inline void CSdkCardReader::SetId(TReaderID aId)

    { iId = aId; iFlags |= EFlagHasId; }

inline TReaderID CSdkCardReader::Id() const

    { ASSERT(HasId()); return iId; }

inline TBool CSdkCardReader::MatchId(TReaderID aId) const

    { return (iFlags & EFlagHasId) && (iId == aId); }

inline const TDesC& CSdkCardReader::Name() const

    { return iName; }

inline void CSdkCardReader::AddRef()

    { iRefCount++; }

#endif // _SDK_CARDREADER_H_