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|
//=========================================================================//
// //
// PonyProg - Serial Device Programmer //
// //
// Copyright (C) 1997-2021 Claudio Lanconelli //
// //
// http://ponyprog.sourceforge.net //
// //
//-------------------------------------------------------------------------//
// //
// 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 version2 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 (see LICENSE); if not, write to the //
// Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. //
// //
//=========================================================================//
// #include <stdio.h>
#include <QString>
#include <QDataStream>
#include "e2pfbuf.h" // Header file
#include "crc.h"
#include "errcode.h"
#include "e2phead.h"
#include "eeptypes.h"
static char const *id_string = "E2P!Lanc";
e2pFileBuf::e2pFileBuf(e2AppWinInfo *wininfo)
: FileBuf(wininfo)
{
file_type = E2P;
Q_ASSERT_X(sizeof(struct e2pHeader) == 152, "e2pFileBuf", "Bad size for e2pHeader");
}
e2pFileBuf::~e2pFileBuf()
{
}
/***
void e2pFileBuf::check_offsets()
{
printf("fileID: %lu\n", offsetof(e2pHeader, fileID));
printf("e2pFuseBits: %lu\n", offsetof(e2pHeader, e2pFuseBits));
printf("e2pLockBits: %lu\n", offsetof(e2pHeader, e2pLockBits));
printf("e2pType: %lu\n", offsetof(e2pHeader, e2pType));
printf("e2pSize: %lu\n", offsetof(e2pHeader, e2pSize));
printf("flags: %lu\n", offsetof(e2pHeader, flags));
printf("e2pExtFuseBits: %lu\n", offsetof(e2pHeader, e2pExtFuseBits));
printf("e2pExtLockBits: %lu\n", offsetof(e2pHeader, e2pExtLockBits));
printf("fversion: %lu\n", offsetof(e2pHeader, fversion));
printf("split_size_Low: %lu\n", offsetof(e2pHeader, split_size_Low));
printf("e2pStringID: %lu\n", offsetof(e2pHeader, e2pStringID));
printf("e2pProgBits: %lu\n", offsetof(e2pHeader, e2pProgBits));
printf("e2pComment: %lu\n", offsetof(e2pHeader, e2pComment));
printf("split_size_High: %lu\n", offsetof(e2pHeader, split_size_High));
printf("pad: %lu\n", offsetof(e2pHeader, pad));
printf("e2pCrc: %lu\n", offsetof(e2pHeader, e2pCrc));
printf("headCrc: %lu\n", offsetof(e2pHeader, headCrc));
if (sizeof(struct e2pHeader) != 152)
printf("Bad E2P Header size: %lu\n", sizeof(struct e2pHeader));
else
printf("E2P Header size OK (%lu)\n", sizeof(struct e2pHeader));
}
***/
int e2pFileBuf::Load(int loadtype, long relocation_offset)
{
extern int GetE2PSubType(unsigned long x);
extern int GetE2PPriType(unsigned long x);
QFile fh(FileBuf::GetFileName());
e2pHeader hdr;
int rval;
if (!fh.open(QIODevice::ReadOnly))
{
return FILENOTFOUND;
}
QDataStream datastream(&fh);
// Controlla il tipo di file
if (datastream.readRawData((char *)&hdr, sizeof(e2pHeader)) &&
strncmp(hdr.fileID, id_string, E2P_ID_SIZE) == 0)
{
unsigned char *localbuf = new unsigned char[hdr.e2pSize];
//Controlla il CRC dell'Header
if (mcalc_crc(&hdr, sizeof(hdr) - sizeof(hdr.headCrc)) == hdr.headCrc &&
//Check for CRC in memory
fcalc_crc(fh, sizeof(e2pHeader), 0) == hdr.e2pCrc &&
//read buffer
datastream.readRawData((char *)localbuf, hdr.e2pSize))
// fread(FileBuf::GetBufPtr(), hdr.e2pSize, 1, fh) )
{
SetEEpromType(hdr.e2pType); //set eeprom device type (and block size too)
//FileBuf::SetNoOfBlock( hdr.e2pSize / FileBuf::GetBlockSize() );
if (hdr.fversion > 0)
{
SetLockBits(((uint32_t)hdr.e2pExtLockBits << 8) | hdr.e2pLockBits);
SetFuseBits(((uint32_t)hdr.e2pExtFuseBits << 8) | hdr.e2pFuseBits);
}
else
{
//Old file version
if (GetE2PPriType(hdr.e2pType) == PIC16XX ||
GetE2PPriType(hdr.e2pType) == PIC168XX ||
GetE2PPriType(hdr.e2pType) == PIC125XX)
{
SetLockBits(((uint32_t)hdr.e2pLockBits << 8) | hdr.e2pFuseBits);
}
else
{
SetLockBits(hdr.e2pLockBits);
SetFuseBits(hdr.e2pFuseBits);
}
}
if (hdr.fversion > 1)
{
SetSplitted(((uint32_t)hdr.split_size_High << 16) | hdr.split_size_Low);
}
else
{
SetSplitted(hdr.split_size_Low);
}
SetStringID(hdr.e2pStringID);
SetComment(hdr.e2pComment);
SetRollOver(hdr.flags & 7);
SetCRC(hdr.e2pCrc);
//Copy the content into the buffer
if (loadtype == ALL_TYPE)
{
if (hdr.e2pSize <= GetBufSize())
{
memcpy(FileBuf::GetBufPtr(), localbuf, hdr.e2pSize);
}
}
else if (loadtype == PROG_TYPE)
{
long s = GetSplitted();
if (s <= 0)
{
s = hdr.e2pSize;
}
//if splittedInfo == 0 then copy ALL
if (s <= hdr.e2pSize && s <= GetBufSize())
{
memcpy(FileBuf::GetBufPtr(), localbuf, s);
}
}
else if (loadtype == DATA_TYPE)
{
long s = GetSplitted();
if (s >= 0 &&
s < hdr.e2pSize &&
hdr.e2pSize <= GetBufSize())
{
memcpy(FileBuf::GetBufPtr() + s, localbuf + s, hdr.e2pSize - s);
}
}
rval = GetNoOfBlock();
}
else
{
rval = READERROR;
}
delete[] localbuf;
}
else
{
rval = BADFILETYPE;
}
fh.close();
return rval;
}
int e2pFileBuf::Save(int savetype, long relocation_offset)
{
e2pHeader hdr;
int rval;
if (FileBuf::GetNoOfBlock() <= 0)
{
return NOTHINGTOSAVE;
}
QFile fh(FileBuf::GetFileName());
//Header settings
memset(&hdr, 0, sizeof(hdr)); //Clear all to zero first
strncpy(hdr.fileID, id_string, E2P_ID_SIZE); //Id
hdr.e2pSize = FileBuf::GetNoOfBlock() * FileBuf::GetBlockSize();
unsigned char *localbuf = new unsigned char[hdr.e2pSize];
long s = GetSplitted();
memset(localbuf, 0xff, hdr.e2pSize);
if (fh.exists())
{
if (!fh.open(QIODevice::ReadOnly))
{
delete[] localbuf;
return CREATEERROR;
}
QDataStream datastream(&fh);
//Initialize local buffer
// if the file already exist read the current content
// otherwise set the localbuffer to 0xFF
if (fh.seek(sizeof(hdr)))
{
datastream.readRawData((char *)localbuf, hdr.e2pSize);
}
fh.close();
}
if (savetype == ALL_TYPE)
{
memcpy(localbuf, FileBuf::GetBufPtr(), hdr.e2pSize);
}
else if (savetype == DATA_TYPE)
{
if (hdr.e2pSize > s)
{
memcpy(localbuf + s, FileBuf::GetBufPtr() + s, hdr.e2pSize - s);
}
}
else if (savetype == PROG_TYPE)
{
if (s > 0 && s <= hdr.e2pSize)
{
memcpy(localbuf, FileBuf::GetBufPtr(), s);
}
}
hdr.fversion = E2P_FVERSION;
hdr.e2pLockBits = (uint8_t)(GetLockBits() & 0xFF);
hdr.e2pExtLockBits = (uint16_t)(GetLockBits() >> 8);
hdr.e2pFuseBits = (uint8_t)(GetFuseBits() & 0xFF);
hdr.e2pExtFuseBits = (uint16_t)(GetFuseBits() >> 8);
hdr.e2pType = GetEEpromType();
strncpy(hdr.e2pStringID, GetStringID().toLatin1().constData(), 28);
strncpy(hdr.e2pComment, GetComment().toLatin1().constData(), 85);
hdr.flags = GetRollOver() & 7;
hdr.split_size_Low = (uint16_t)GetSplitted();
hdr.split_size_High = (uint16_t)(GetSplitted() >> 16);
hdr.e2pCrc = mcalc_crc(localbuf, hdr.e2pSize);
hdr.headCrc = mcalc_crc(&hdr, sizeof(hdr) - sizeof(hdr.headCrc));
if (fh.open(QIODevice::WriteOnly | QIODevice::Truncate))
{
QDataStream datastream(&fh);
//Write to file
if (datastream.writeRawData((char *)&hdr, sizeof(hdr)) && //Write the header
datastream.writeRawData((char *)localbuf, hdr.e2pSize)) //Write the buffer
{
rval = GetNoOfBlock();
}
else
{
rval = WRITEERROR;
}
fh.close();
}
else
{
rval = CREATEERROR;
}
delete[] localbuf;
return rval;
}
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