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//####COPYRIGHTBEGIN####

//                                                                          

// ----------------------------------------------------------------------------

// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.

//

// This program is part of the eCos host tools.

//

// This program is free software; you can redistribute it and/or modify it 

// under the terms of the GNU General Public License as published by the Free 

// Software Foundation; either version 2 of the License, or (at your option) 

// any later version.

// 

// This program is distributed in the hope that it will be useful, but WITHOUT 

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 

// more details.

// 

// You should have received a copy of the GNU General Public License along with

// this program; if not, write to the Free Software Foundation, Inc., 

// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//

// ----------------------------------------------------------------------------

//                                                                          

//####COPYRIGHTEND####

//=================================================================

//

//        eCosTestDownloadFilter.h

//

//        Socket/serial download filter class

//

//=================================================================

//=================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     jskov

// Contributors:  jskov

// Date:          1999-09-20

//####DESCRIPTIONEND####

#ifndef _CECOSDOWNLOADFILTER_H

#define _CECOSDOWNLOADFILTER_H

#include "eCosStd.h"

#include "eCosTest.h"

#include "eCosSocket.h"

#include "eCosSerial.h"

//----------------------------------------------------------------------------

// Macros to help extract values from the argument string.

// Note: This is probably not an ideal solution, but it was easy to make :)

#define INIT_VALUE(__args)                      unsigned int v; char *__ptr1, *__ptr2 = (__args)

#define SET_VALUE(__type, __slot) {          \

    __ptr1 = strchr(__ptr2, (int) ':');      \

    if (*__ptr2 == '\0')                     \

           (__slot) = (__type)-1;            \

    else {                                   \

        if (__ptr1)                          \

            *__ptr1 = 0;                     \

        else                                 \

            __ptr1 = strchr( __ptr2, 0) - 1; \

        v = atoi(__ptr2);                    \

        __ptr2 = __ptr1+1;                   \

        (__slot) = (__type) v;               \

    }                                        \

}

#define SET_STRING(__slot)               {    __ptr1 = strchr(__ptr2, (int) ':'); if (__ptr1) *__ptr1 = 0; __slot = __ptr2; __ptr2 = __ptr1+1; }

//----------------------------------------------------------------------------

// The filter class

class CeCosTestDownloadFilter;

class CeCosTestDownloadFilter {

public:

    // Constructor

    CeCosTestDownloadFilter();

    ~CeCosTestDownloadFilter();

    // Configuration methods

    void SetSerialDebug(bool bSerialDebug)

        { m_bOptSerDebug = bSerialDebug; }

    void SetFilterTrace(bool bFilterTrace)

        { m_bOptFilterTrace = bFilterTrace; }

    bool ContinueSession()

        { bool r = m_bContinueSession; m_bContinueSession = false; return r; }

    bool FilterFunctionProper(void*& pBuf,

                              unsigned int& nRead,

                              CeCosSerial& serial,

                              CeCosSocket& socket);

private:

    // If we can guarantee a minimum buffer size in the stub, we can

    // increase PBUFSIZE.

    enum {MAX_CMD_LEN=128, PBUFSIZ=400};

    enum data_origin_t {SF_TARGET=0, SF_FILTER} ;

    // Output methods

    void ConsoleWrite(const char* pszStr);

    void Trace(const char* pszFormat, ...);

    void PrintHex(const unsigned char* d1, int len,

                  data_origin_t origin=SF_TARGET);

    // Target read/write methods

    void TargetWrite(CeCosSerial &pSer,

                     const unsigned char* buffer, int len);

    // GDB stuff

    int tohex(int nib);

    int hexnumstr(unsigned char* buf, unsigned long num);

    int hexnumlen(unsigned long num);

    int put_binary (unsigned char* buf, int cnt, unsigned long dl_address,

                    int packet_size, CeCosSerial& serial);

    // Options used for configuring behavior.

    bool m_bNullFilter;

    bool m_bOptSerDebug;

    bool m_bOptFilterTrace;

    // Filter state

    int  m_nCmdIndex;

    bool m_bCmdFlag;

    char m_aCmd[MAX_CMD_LEN];

    bool m_bContinueSession;            // set true only after a successfull dl

};

extern bool CALLBACK DownloadFilterFunction(void*& pBuf,

                                            unsigned int& nRead,

                                            CeCosSerial& serial,

                                            CeCosSocket& socket,

                                            void* pParem);

#endif // _CECOSDOWNLOADFILTER_H