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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mkboot.h"
#ifndef RBUTIL
static void usage(void)
{
printf("usage: mkboot [-h300] <firmware file> <boot file> <output file>\n");
exit(1);
}
#endif
static unsigned char image[0x400000 + 0x220 + 0x400000/0x200];
#ifndef RBUTIL
int main(int argc, char *argv[])
{
char *infile, *bootfile, *outfile;
int origin = 0x1f0000; /* H1x0 bootloader address */
if(argc < 3) {
usage();
}
if(!strcmp(argv[1], "-h300")) {
infile = argv[2];
bootfile = argv[3];
outfile = argv[4];
origin = 0x3f0000; /* H3x0 bootloader address */
}
else
{
infile = argv[1];
bootfile = argv[2];
outfile = argv[3];
}
return mkboot(infile, bootfile, outfile, origin);
}
#endif
int mkboot(const char* infile, const char* bootfile, const char* outfile, int origin)
{
FILE *f;
int i;
int len;
int actual_length, total_length, binary_length, num_chksums;
memset(image, 0xff, sizeof(image));
/* First, read the iriver original firmware into the image */
f = fopen(infile, "rb");
if(!f) {
perror(infile);
return -1;
}
i = fread(image, 1, 16, f);
if(i < 16) {
perror(infile);
fclose(f);
return -2;
}
/* This is the length of the binary image without the scrambling
overhead (but including the ESTFBINR header) */
binary_length = image[4] + (image[5] << 8) +
(image[6] << 16) + (image[7] << 24);
/* Read the rest of the binary data, but not the checksum block */
len = binary_length+0x200-16;
i = fread(image+16, 1, len, f);
if(i < len) {
perror(infile);
fclose(f);
return -3;
}
fclose(f);
/* Now, read the boot loader into the image */
f = fopen(bootfile, "rb");
if(!f) {
perror(bootfile);
fclose(f);
return -4;
}
fseek(f, 0, SEEK_END);
len = ftell(f);
fseek(f, 0, SEEK_SET);
i = fread(image+0x220 + origin, 1, len, f);
if(i < len) {
perror(bootfile);
fclose(f);
return -5;
}
fclose(f);
f = fopen(outfile, "wb");
if(!f) {
perror(outfile);
return -6;
}
/* Patch the reset vector to start the boot loader */
image[0x220 + 4] = image[origin + 0x220 + 4];
image[0x220 + 5] = image[origin + 0x220 + 5];
image[0x220 + 6] = image[origin + 0x220 + 6];
image[0x220 + 7] = image[origin + 0x220 + 7];
/* This is the actual length of the binary, excluding all headers */
actual_length = origin + len;
/* Patch the ESTFBINR header */
image[0x20c] = (actual_length >> 24) & 0xff;
image[0x20d] = (actual_length >> 16) & 0xff;
image[0x20e] = (actual_length >> 8) & 0xff;
image[0x20f] = actual_length & 0xff;
image[0x21c] = (actual_length >> 24) & 0xff;
image[0x21d] = (actual_length >> 16) & 0xff;
image[0x21e] = (actual_length >> 8) & 0xff;
image[0x21f] = actual_length & 0xff;
/* This is the length of the binary, including the ESTFBINR header and
rounded up to the nearest 0x200 boundary */
binary_length = (actual_length + 0x20 + 0x1ff) & 0xfffffe00;
/* The number of checksums, i.e number of 0x200 byte blocks */
num_chksums = binary_length / 0x200;
/* The total file length, including all headers and checksums */
total_length = binary_length + num_chksums + 0x200;
/* Patch the scrambler header with the new length info */
image[0] = total_length & 0xff;
image[1] = (total_length >> 8) & 0xff;
image[2] = (total_length >> 16) & 0xff;
image[3] = (total_length >> 24) & 0xff;
image[4] = binary_length & 0xff;
image[5] = (binary_length >> 8) & 0xff;
image[6] = (binary_length >> 16) & 0xff;
image[7] = (binary_length >> 24) & 0xff;
image[8] = num_chksums & 0xff;
image[9] = (num_chksums >> 8) & 0xff;
image[10] = (num_chksums >> 16) & 0xff;
image[11] = (num_chksums >> 24) & 0xff;
i = fwrite(image, 1, total_length, f);
if(i < total_length) {
perror(outfile);
fclose(f);
return -7;
}
printf("Wrote 0x%x bytes in %s\n", total_length, outfile);
fclose(f);
return 0;
}
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