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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* mkamsboot - a tool for merging bootloader code into an Sansa V2
* (AMS) firmware file
*
* Copyright (C) 2008 Dave Chapman
*
* 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 <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <ucl/ucl.h>
#include "mkamsboot.h"
/* Header for ARM code binaries */
#include "dualboot.h"
/* Win32 compatibility */
#ifndef O_BINARY
#define O_BINARY 0
#endif
/* standalone executable */
int main(int argc, char* argv[])
{
char *infile, *bootfile, *outfile;
int fdout;
off_t len;
uint32_t n;
unsigned char* buf;
int firmware_size;
int bootloader_size;
unsigned char* of_packed;
int of_packedsize;
unsigned char* rb_packed;
int rb_packedsize;
int patchable;
int totalsize;
int model;
char errstr[200];
struct md5sums sum;
char md5sum[33]; /* 32 digits + \0 */
sum.md5 = md5sum;
/* VERSION comes frome the Makefile */
fprintf(stderr,
"mkamsboot Version " VERSION "\n"
"This is free software; see the source for copying conditions. There is NO\n"
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
"\n");
if(argc != 4) {
printf("Usage: mkamsboot <firmware file> <boot file> <output file>\n");
return 1;
}
infile = argv[1];
bootfile = argv[2];
outfile = argv[3];
/* Load bootloader file */
rb_packed = load_rockbox_file(bootfile, &model, &bootloader_size,
&rb_packedsize, errstr, sizeof(errstr));
if (rb_packed == NULL) {
fprintf(stderr, "%s", errstr);
fprintf(stderr, "[ERR] Could not load %s\n", bootfile);
return 1;
}
/* Load original firmware file */
buf = load_of_file(infile, model, &len, &sum,
&firmware_size, &of_packed, &of_packedsize, errstr, sizeof(errstr));
if (buf == NULL) {
free(rb_packed);
fprintf(stderr, "%s", errstr);
fprintf(stderr, "[ERR] Could not load %s\n", infile);
return 1;
}
fprintf(stderr, "[INFO] Original firmware MD5 checksum match\n");
fprintf(stderr, "[INFO] Model: Sansa %s v%d - Firmware version: %s\n",
ams_identity[sum.model].model_name,
ams_identity[sum.model].hw_revision, sum.version);
printf("[INFO] Firmware patching has begun !\n\n");
fprintf(stderr, "[INFO] Original firmware size: %8d bytes\n",
firmware_size);
fprintf(stderr, "[INFO] Packed OF size: %8d bytes\n",
of_packedsize);
fprintf(stderr, "[INFO] Bootloader size: %8d bytes\n",
bootloader_size);
fprintf(stderr, "[INFO] Packed bootloader size: %8d bytes\n",
rb_packedsize);
fprintf(stderr, "[INFO] Dual-boot function size: %8d bytes\n",
ams_identity[sum.model].bootloader_size);
fprintf(stderr, "[INFO] UCL unpack function size: %8zu bytes\n",
sizeof(nrv2e_d8));
fprintf(stderr, "[INFO] Original firmware version: %8u bytes\n",
0x200);
patchable = check_sizes(sum.model, rb_packedsize, bootloader_size,
of_packedsize, firmware_size, &totalsize, errstr, sizeof(errstr));
fprintf(stderr, "[INFO] Total size of new image: %8d bytes\n", totalsize);
if (!patchable) {
fprintf(stderr, "%s", errstr);
free(buf);
free(of_packed);
free(rb_packed);
return 1;
}
patch_firmware(sum.model, ams_identity[sum.model].fw_revision,
firmware_size, buf, len, of_packed, of_packedsize, rb_packed,
rb_packedsize);
/* Write the new firmware */
fdout = open(outfile, O_CREAT|O_TRUNC|O_WRONLY|O_BINARY, 0666);
if (fdout < 0) {
fprintf(stderr, "[ERR] Could not open %s for writing\n", outfile);
free(buf);
free(of_packed);
free(rb_packed);
return 1;
}
n = write(fdout, buf, len);
if (n != (unsigned)len) {
fprintf(stderr, "[ERR] Could not write firmware file\n");
free(buf);
free(of_packed);
free(rb_packed);
return 1;
}
close(fdout);
free(buf);
free(of_packed);
free(rb_packed);
fprintf(stderr, "\n[INFO] Patching succeeded!\n");
return 0;
}
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