/*

* Copyright (c) 2004-2005 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: 

*     This class handles SAP message encoding and decoding

*

*/

#ifndef BT_SAP_MESSAGE_H

#define BT_SAP_MESSAGE_H

//  INCLUDES

#include <e32std.h>

const TInt KMaxMsgSize = 4096;

const TInt KMinMsgSize = 275; // biggest size of apdu_req

const TInt KParaLenModulo = 4;

const TInt KMsgIDRange = 18;

const TInt KParaIDRange = 8;

const TInt KMsgIDOffset = 0;

const TInt KParaNumOffset = 1;

const TInt KHeaderResvLen = 2;

const TInt KPayloadOffset = 4;

const TInt KParaIDLen = 1;

const TInt KParaResvLen = 1;

const TInt KParaLenLen = 2;

const TInt KParaResvValue = 0x00;

const TInt KHeaderResvValue = 0x0000;

enum TMsgID

    {

    EConnectRequest,

    EConnectResponse,

    EDisconnectRequest,

    EDisconnectResponse,

    EDisconnectIndication,

    ETransferAPDURequest,

    ETransferAPDUResponse,

    ETransferATRRequest,

    ETransferATRResponse,

    EPowerSimOffRequest,

    EPowerSimOffResponse,

    EPowerSimOnRequest,

    EPowerSimOnResponse,

    EResetSimRequest,

    EResetSimResponse,

    ETransferCardReaderStatusRequest,

    ETransferCardReaderStatusResponse,

    EStatusIndication,

    EErrorResponse

    };

enum TParaID

    {

    EParaMaxMsgSize,

    EParaConnectionStatus,

    EParaResultCode,

    EParaDisconnectionType,

    EParaCommandAPDU,

    EParaResponseAPDU,

    EParaATR,

    EParaCardReaderStatus,

    EParaStatusChange,

    EParaCommandAPDU7816 = 0x10  // This parameter's ID is not sequential

    };

enum TResultCode

    {

    EResultCodeOK,

    EResultCodeUnknown,

    EResultCodeNotAccessible,

    EResultCodePowerOff,

    EResultCodeCardRemoved,

    EResultCodeAlreadyPowerOn,

    EResultCodeDataNotAvailable,

    EResultCodeReserved = 100

    };

enum TCardStatus

    {

    ECardStatusError,

    ECardStatusReset,

    ECardStatusNotAccessible,

    ECardStatusRemoved,

    ECardStatusInserted,

    ECardStatusRecovered,

    ECardStatusReserved = 100

    };

enum TConnectionStatus

    {

    EConnectionOK,

    EConnectionErrReject,

    EConnectionErrNotSupported,

    };

enum TValidationResult

    {

    EValidFormat,

    EInvalidSegmented,

    EInvalidMsgID,

    EInvalidReservedBytes,

    EInvalidParameterID,

    EInvalidPaddingBytes,

    EInvalidParaNumTooSmall,

    EInvalidUnknown

    };

const TInt KMapErrCode[] = 

    {

    KErrNone,

    KErrAlreadyExists,

    KErrDisconnected,

    KErrArgument,

    KErrNotReady,

    KErrInUse,

    KErrCompletion,

    KErrGeneral

    };

const TResultCode KMapResultCode[] =

    {

    EResultCodeOK,

    EResultCodeAlreadyPowerOn,

    EResultCodePowerOff,

    EResultCodeUnknown,

    EResultCodeCardRemoved,

    EResultCodeNotAccessible,

    EResultCodeCardRemoved,

    EResultCodeDataNotAvailable

    };

const TMsgID KMapRequestID[] =

    {

    EConnectRequest,

    EDisconnectRequest,

    ETransferAPDURequest,

    ETransferATRRequest,

    EPowerSimOffRequest,

    EPowerSimOnRequest,

    EResetSimRequest,

    ETransferCardReaderStatusRequest,

    };

const TMsgID KMapMsgID[] =

    {

    EConnectRequest,

    ETransferAPDURequest,

    ETransferAPDURequest

    };

const TParaID KMapParaID[] =

    {

    EParaMaxMsgSize,

    EParaCommandAPDU,

    EParaCommandAPDU7816

    };

// CLASS DECLARATION

/**

* SAP message format handler class.

*/

class TBTSapMessage

    {

public:

    TBTSapMessage();

    void SetMsgID(TMsgID aMsgID);

    TMsgID MsgID();

    void AddParameter(TParaID aParaID, TInt aValue, TInt aLen = 1);

    void AddParameter(TParaID aParaID, const TDesC8& aValue);

    TInt GetParameter(TParaID aParaID, TDes8& aValue);

    TInt GetParameter(TParaID aParaID, TInt& aValue);

    // Copy data

    void SetData(const TDes8& aData);

    TInt AppendData(const TDes8& aData);

    void Reset();

    TDes8& Data();

    TBool IsEmpty();

    TValidationResult Validate();

    TResultCode ToResultCode(TInt errorCode);

    TUint8 GetParaNum();

    TInt GetParaID(const TUint8 index, TParaID &aParaID);

private:

    TInt FindParameter(TParaID aParaID, TInt& aValuePos, TInt& aValueLen);

    void AddParameter(TParaID aParaID, const TUint8* aValue, TInt aLen);

    TBool IsValidParaID(const TParaID aParaID, const TMsgID aMsgID) const;

    TBool IsValidRequestID(const TMsgID aRequestID) const;

private:

    TBuf8<KMaxMsgSize> iData;

    };

#endif      // BT_SAP_MESSAGE_H   

// End of File