imgtools/romtools/rombuild/r_srec.cpp
author Richard Taylor <richard.i.taylor@nokia.com>
Fri, 30 Apr 2010 16:52:27 +0100
branchwip
changeset 506 efe4a967495a
parent 0 044383f39525
child 590 360bd6b35136
permissions -rw-r--r--
test changes for abiv1 kit property
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/*
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* Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include "r_rom.h"
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#include "r_obey.h"
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#include <e32std.h>
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#include <e32std_private.h>
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#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
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#include <iostream>
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#include <fstream>
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#else //!__MSVCDOTNET__
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#include <iostream.h>
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#include <fstream.h>
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#endif //__MSVCDOTNET__
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#include <string.h>
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const TInt KSRecBytesPerLine=32;		// max line = 1+1+2+8 + (32*2) + 2 = 78
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LOCAL_C TInt enchex(TUint nibble)
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//
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// Return ascii hex character corresponding to nibble
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//
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    {
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    nibble&=0xf;
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    return(nibble<=9 ? '0'+nibble : 'A'-10+nibble);
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    }
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GLDEF_C TUint putbhx(TUint8 *buf,TUint byte)
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//
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// Write byte to buffer as two hex digits
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//
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    {
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    *buf++ = (TUint8)enchex(byte>>4);
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    *buf++ = (TUint8)enchex(byte);
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	return byte&0xff;
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    }
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GLDEF_C TInt putmot(TUint8 *mcode, TUint8 *mdata,TUint mlen,TUint addr)
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//
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// Write SREC or S19 format to buffer at mcode from mlen bytes of binary data
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// stored in buffer mdata. The code is given address addr.
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// Returns the number of bytes written to mcode.
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//
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    {
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    TUint8 *p,*q,*qend;
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    TUint  sum,byte;
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    p=mcode;
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    *p='S';
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#ifdef ALLOW_S_RECORD_THREE_BYTE_ADDRESSES
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	// This is an optimisation which is useful for S-Record downloads over serial cable
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	// but some S-Record tools don't support it, so it's off by default.
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	if ((TUint)((addr>>24)&0xff) == 0)
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		{
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		*(p+1)='2';		// 3-byte address field
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		sum=putbhx(p+=2,3+mlen+1);
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 		}
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	else
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#endif
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		{
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		*(p+1)='3';		// 4-byte address field
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		sum=putbhx(p+=2,4+mlen+1);
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		sum+=putbhx(p+=2,(TUint)((addr>>24)&0xff));
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		}
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    sum+=putbhx(p+=2,(TUint)((addr>>16)&0xff));
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    sum+=putbhx(p+=2,(TUint)((addr>>8)&0xff));
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    sum+=putbhx(p+=2,(TUint)addr);
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    q=mdata;
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    qend=mdata+mlen;
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    for (q=mdata;q<qend;q++)
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		{
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		byte=(*q);
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		sum+=putbhx(p+=2,byte);
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		}
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	putbhx(p+=2,~sum);
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    return((TUint)(p-mcode+2));
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    }
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void E32Rom::WriteSRecord(ofstream &of)
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//
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// Write the rom to a file in S record format and return its check sum.
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//
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	{
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	TInt i;
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	TUint8 sBuf[256];
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	of << "S00600004844521B\n";
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	TInt size=iObey->iRomSize;
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	TUint8 *ptr=(TUint8 *)iHeader;
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	for (i=0; i<size; i+=KSRecBytesPerLine)
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		{
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		TInt len;
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		if ((i+KSRecBytesPerLine)>size)
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			len=size-i;
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		else
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			len=KSRecBytesPerLine;
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		TUint8 *pS=ptr+i;
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		TInt l=putmot(sBuf,pS,len,i+iObey->iSRecordBase);
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		of.write(reinterpret_cast<char *>(sBuf), l);
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		of<<endl;
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		}
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	of << "S70500000000FA\n";		// Fixed address! - would need to compute the checksum
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	}
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