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/*
flashwrite.c: programming the flash memory on a NetWinder
Copyright 1998 woody@corelcomputer.com
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include "flash.h"
int main (int argc, char **argv)
{
int fd = 0;
int uTemp = 0;
int uTemp1 = 0;
int uOffset = 0;
int base64 = 0;
char* filebuf;
char* basename;
char* p;
char buff[64];
// printf("\nargc=%d, argv:[0]=%s, [1]=%s, [2]=%s, [3]=%s.\n\n",
// argc,argv[0],argv[1],argv[2],argv[3]);
basename = (p = strrchr(argv[0], '/')) ? p+1 : argv[0];
if(argc != 3 && (argc != 4 || strcmp(*(++argv),"-base64")) )
{
fprintf(stderr,"\nNetwinder Flash Memory update program, Corel Computer 1998.\nUsage: %s [-base64] filename offset(hex).\n\n",
basename);
return EXIT_FAILURE;
}
if (!strcmp(argv[0],"-base64"))
base64++;
fd = open(argv[1], O_RDONLY);
if (fd <= 0)
{
fprintf(stderr,"%s: unable to open file \"%s\", error 0x%X.\n",
basename, argv[1], errno);
return EXIT_FAILURE;
}
//else open OK, load the file into memory
uTemp = lseek(fd, 0 , 2); //seek to end
filebuf = (char *)malloc (uTemp);
uTemp1 = lseek(fd, 0, 0);
uTemp1 = read(fd,filebuf,uTemp);
close(fd);
if ((uTemp = sscanf(argv[2], "%x", &uOffset)) <= 0)
{
fprintf(stderr,"%s: unable to read hex offset in the flash (\"%s\")???.\n",
basename, argv[2]);
free(filebuf);
return EXIT_FAILURE;
}
fflush(stdin);
fprintf(stderr,"\n%s: ready to write into flash memory\n file : \"%s\"\n size : %d bytes\n offset : 0x%X\n\n",
basename, argv[1], uTemp1, uOffset);
if (base64)
fprintf(stderr,"\nWarning: write to base 64k of flash enabled!\n\n");
fprintf(stderr,"Press Y to continue, or anything else to abort ...\n\n");
fgets(buff,3,stdin);
if (tolower(buff[0]) != 'y')
{
printf("\nNot this time... Abort.\n\n");
return EXIT_FAILURE;
}
printf("\nPlease wait. Yellow LED - erasing, Red LED - writing, Green LED - verifying...\n");
fd = open("/dev/nwflash", O_RDWR);
if (fd <0)
{
printf("Error %d opening /dev/nwflash\n",fd);
free(filebuf);
return EXIT_FAILURE;
}
uTemp = lseek(fd, uOffset, 0);
// printf("Seek rc = 0x%X.\n",uTemp);
ioctl(fd, CMD_WRITE_ENABLE);
if (base64)
ioctl(fd, CMD_WRITE_BASE64K_ENABLE);
uTemp = write(fd,filebuf,uTemp1);
if (uTemp == uTemp1)
printf("Flash write: written %d bytes OK.\n", uTemp);
else
{
if (uTemp < 0)
{
printf("ERROR: flash write returned error %d!\n",
uTemp);
}
else
{
printf("ERROR: flash write : written %d out of %d bytes!\n",
uTemp, uTemp1);
}
}
ioctl(fd, CMD_WRITE_DISABLE);
free(filebuf);
if (close(fd) != 0)
printf("Error closing /dev/nwflash\n");
if (uTemp == uTemp1)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
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