25c66fc632
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8350 a1c6a512-1295-4272-9138-f99709370657
554 lines
15 KiB
C
554 lines
15 KiB
C
/*
|
|
* make_fw.c - iPodLinux loader installer
|
|
*
|
|
* Copyright (C) 2003 Daniel Palffy
|
|
*
|
|
* based on Bernard Leach's patch_fw.c
|
|
* Copyright (C) 2002 Bernard Leach
|
|
* big endian support added 2003 Steven Lucy
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef __WIN32__
|
|
#include "getopt.c"
|
|
#endif
|
|
|
|
#define TBL 0x4200
|
|
|
|
/* Some firmwares have padding becore the actual image. */
|
|
#define IMAGE_PADDING ((fw_version == 3) ? 0x200 : 0)
|
|
#define FIRST_OFFSET (TBL + 0x200 + IMAGE_PADDING)
|
|
|
|
int be;
|
|
unsigned short fw_version = 2;
|
|
|
|
typedef struct _image {
|
|
char type[4]; /* '' */
|
|
unsigned id; /* */
|
|
char pad1[4]; /* 0000 0000 */
|
|
unsigned devOffset; /* byte offset of start of image code */
|
|
unsigned len; /* length in bytes of image */
|
|
unsigned addr; /* load address */
|
|
unsigned entryOffset; /* execution start within image */
|
|
unsigned chksum; /* checksum for image */
|
|
unsigned vers; /* image version */
|
|
unsigned loadAddr; /* load address for image */
|
|
} image_t;
|
|
|
|
static char *apple_copyright = "{{~~ /-----\\ {{~~ / \\ {{~~| | {{~~| S T O P | {{~~| | {{~~ \\ / {{~~ \\-----/ Copyright(C) 2001 Apple Computer, Inc.---------------------------------------------------------------------------------------------------------";
|
|
|
|
unsigned
|
|
switch_32(unsigned l)
|
|
{
|
|
if (be)
|
|
return ((l & 0xff) << 24)
|
|
| ((l & 0xff00) << 8)
|
|
| ((l & 0xff0000) >> 8)
|
|
| ((l & 0xff000000) >> 24);
|
|
return l;
|
|
}
|
|
|
|
unsigned short
|
|
switch_16(unsigned short s)
|
|
{
|
|
if (be) {
|
|
return ((s & 0xff) << 8) | ((s & 0xff00) >> 8);
|
|
} else {
|
|
return s;
|
|
}
|
|
}
|
|
|
|
void
|
|
switch_endian(image_t *image)
|
|
{
|
|
if (be) {
|
|
image->id = switch_32(image->id);
|
|
image->devOffset = switch_32(image->devOffset);
|
|
image->len = switch_32(image->len);
|
|
image->addr = switch_32(image->addr);
|
|
image->entryOffset = switch_32(image->entryOffset);
|
|
image->chksum = switch_32(image->chksum);
|
|
image->vers = switch_32(image->vers);
|
|
image->loadAddr = switch_32(image->loadAddr);
|
|
}
|
|
}
|
|
|
|
void
|
|
print_image(image_t *image, const char *head)
|
|
{
|
|
printf("%stype: '%s' id: 0x%4x len: 0x%4x addr: 0x%4x vers: 0x%8x\r\n",
|
|
head, image->type, image->id, image->len, image->addr, image->vers);
|
|
printf("devOffset: 0x%08X entryOffset: 0x%08X "
|
|
"loadAddr: 0x%08X chksum: 0x%08X\n",
|
|
image->devOffset, image->entryOffset,
|
|
image->loadAddr, image->chksum);
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
printf("Usage: patch_fw [-h]\n"
|
|
" patch_fw [-v] -o outfile -e img_no fw_file\n"
|
|
" patch_fw [-v] -g gen [-r rev] -o outfile [-i img_from_-e]* [-l raw_img]* ldr_img\n\n"
|
|
" -g: set target ipod generation, valid options are: 1g, 2g, 3g\n"
|
|
" 4g, 5g, scroll, touch, dock, mini, photo, color, nano and video\n"
|
|
" -e: extract the image at img_no in boot table to outfile\n"
|
|
" fw_file is an original firmware image\n"
|
|
" the original firmware has the sw at 0, and a flash updater at 1\n"
|
|
" -i|-l: create new image to outfile\n"
|
|
" up to 5 images, any of -i or -l allowed\n"
|
|
" -i: image extracted with -e, load and entry address preserved\n"
|
|
" -l: raw image, loaded to 0x28000000, entry at 0x00000000\n"
|
|
" -r: set master revision to rev (for example 210 for 2.10)\n"
|
|
" may be needed if newest -e img is not the same as the flash rev\n"
|
|
" ldr_img is the iPodLinux loader binary.\n"
|
|
" first image is loaded by default, 2., 3., 4. or 5. loaded if\n"
|
|
" rew, menu, play or ff is hold while booting\n\n"
|
|
" -v: verbose\n\n"
|
|
" This program is used to create a bootable ipod image.\n\n");
|
|
}
|
|
|
|
/* read len bytes from the beginning of s,
|
|
* calculate checksum, and
|
|
* if (d) copy to current offset in d */
|
|
unsigned
|
|
copysum(FILE *s, FILE *d, unsigned len, unsigned off)
|
|
{
|
|
unsigned char temp;
|
|
unsigned sum = 0;
|
|
unsigned i;
|
|
if (fseek(s, off, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
for (i = 0; i < len; i++) {
|
|
if (fread(&temp, 1, 1, s) != 1) {
|
|
fprintf(stderr, "fread failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
sum = sum + (temp & 0xff);
|
|
if (d)
|
|
if (fwrite(&temp, 1, 1, d) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
/* load the boot entry from
|
|
* boot table at offset,
|
|
* entry number entry
|
|
* file fw */
|
|
int
|
|
load_entry(image_t *image, FILE *fw, unsigned offset, int entry)
|
|
{
|
|
if (fseek(fw, offset + entry * sizeof(image_t), SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if (fread(image, sizeof(image_t), 1, fw) != 1) {
|
|
fprintf(stderr, "fread failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
switch_endian(image);
|
|
return 0;
|
|
}
|
|
|
|
/* store the boot entry to
|
|
* boot table at offset,
|
|
* entry number entry
|
|
* file fw */
|
|
int
|
|
write_entry(image_t *image, FILE *fw, unsigned offset, int entry)
|
|
{
|
|
if (fseek(fw, offset + entry * sizeof(image_t), SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
switch_endian(image);
|
|
if (fwrite(image, sizeof(image_t), 1, fw) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
switch_endian(image);
|
|
return -1;
|
|
}
|
|
switch_endian(image);
|
|
return 0;
|
|
}
|
|
|
|
/* extract a single image from the fw
|
|
* the first 40 bytes contain a boot table entry,
|
|
* padded to one block (512 bytes */
|
|
int
|
|
extract(FILE *f, int idx, FILE *out)
|
|
{
|
|
image_t *image;
|
|
unsigned char buf[512];
|
|
unsigned off;
|
|
|
|
fseek(f, 0x100 + 10, SEEK_SET);
|
|
fread(&fw_version, sizeof(fw_version), 1, f);
|
|
fw_version = switch_16(fw_version);
|
|
|
|
image = (image_t *)buf;
|
|
if (load_entry(image, f, TBL, idx) == -1)
|
|
return -1;
|
|
off = image->devOffset + IMAGE_PADDING;
|
|
|
|
if (fseek(f, off, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if (write_entry(image, out, 0x0, 0) == -1)
|
|
return -1;
|
|
if (fseek(out, 512, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if (copysum(f, out, image->len, off) == -1)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* return the size of f */
|
|
unsigned
|
|
lengthof(FILE *f)
|
|
{
|
|
unsigned ret;
|
|
|
|
if (fseek(f, 0, SEEK_END) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
if ((ret = ftell(f)) == -1) {
|
|
fprintf(stderr, "ftell failed: %s\n", strerror(errno));
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
test_endian(void)
|
|
{
|
|
char ch[4] = { '\0', '\1', '\2', '\3' };
|
|
unsigned i = 0x00010203;
|
|
|
|
if (*((int *)ch) == i)
|
|
be = 1;
|
|
else
|
|
be = 0;
|
|
return;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int c;
|
|
int verbose = 0, i, ext = 0;
|
|
FILE *in = NULL, *out = NULL;
|
|
char gen_set = 0;
|
|
image_t images[5];
|
|
image_t image = {
|
|
{ '!', 'A', 'T', 'A' }, // magic
|
|
0x6f736f73, // id
|
|
{ '\0', '\0', '\0', '\0' }, // pad
|
|
0x4400, // devOffset
|
|
0, // len
|
|
0x28000000, // addr
|
|
0, // entry
|
|
0, // chksum
|
|
0, // vers
|
|
0xffffffff // loadAddr
|
|
};
|
|
int images_done = 0;
|
|
unsigned version = 0, offset = 0, len = 0;
|
|
int needs_rcsc = 0;
|
|
|
|
test_endian();
|
|
|
|
/* parse options */
|
|
opterr = 0;
|
|
while ((c = getopt(argc, argv, "3hve:o:i:l:r:g:")) != -1)
|
|
switch (c) {
|
|
case 'h':
|
|
if (verbose || in || out || images_done || ext) {
|
|
fprintf(stderr,
|
|
"-[?h] is exclusive with other arguments\n");
|
|
usage();
|
|
return 1;
|
|
}
|
|
usage();
|
|
return 0;
|
|
case 'v':
|
|
if (verbose++)
|
|
fprintf(stderr, "Warning: multiple -v options specified\n");
|
|
break;
|
|
case '3':
|
|
gen_set = 1;
|
|
fw_version = 3;
|
|
image.addr = 0x10000000;
|
|
break;
|
|
case 'g':
|
|
gen_set = 1;
|
|
if ((strcasecmp(optarg, "4g") == 0) ||
|
|
(strcasecmp(optarg, "mini") == 0) ||
|
|
(strcasecmp(optarg, "nano") == 0) ||
|
|
(strcasecmp(optarg, "photo") == 0) ||
|
|
(strcasecmp(optarg, "color") == 0) ||
|
|
(strcasecmp(optarg, "video") == 0) ||
|
|
(strcasecmp(optarg, "5g") == 0)) {
|
|
fw_version = 3;
|
|
image.addr = 0x10000000;
|
|
if ((strcasecmp(optarg, "5g") == 0) || (strcasecmp(optarg, "video") == 0)) {
|
|
needs_rcsc = 1;
|
|
}
|
|
}
|
|
else if ((strcasecmp(optarg, "1g") != 0) &&
|
|
(strcasecmp(optarg, "2g") != 0) &&
|
|
(strcasecmp(optarg, "3g") != 0) &&
|
|
(strcasecmp(optarg, "scroll") != 0) &&
|
|
(strcasecmp(optarg, "touch") != 0) &&
|
|
(strcasecmp(optarg, "dock") != 0)) {
|
|
fprintf(stderr, "%s: bad gen. Valid options are: 1g, 2g,"
|
|
" 3g, 4g, 5g, scroll, touch, dock, mini, nano,"
|
|
" photo, color, and video\n", optarg);
|
|
return 1;
|
|
}
|
|
break;
|
|
case 'o':
|
|
if (out) {
|
|
fprintf(stderr, "output already opened\n");
|
|
usage();
|
|
return 1;
|
|
}
|
|
if ((out = fopen(optarg, "wb+")) == NULL) {
|
|
fprintf(stderr, "Cannot open output file %s\n", optarg);
|
|
return 1;
|
|
}
|
|
break;
|
|
case 'e':
|
|
if (!out || images_done || ext) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
|
|
ext = atoi(optarg) + 1;
|
|
break;
|
|
case 'i':
|
|
if (!out || ext) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
if (images_done == 5) {
|
|
fprintf(stderr, "Only 5 images supported\n");
|
|
return 1;
|
|
}
|
|
if ((in = fopen(optarg, "rb")) == NULL) {
|
|
fprintf(stderr, "Cannot open firmware image file %s\n", optarg);
|
|
return 1;
|
|
}
|
|
if (load_entry(images + images_done, in, 0, 0) == -1)
|
|
return 1;
|
|
if (!offset) offset = FIRST_OFFSET;
|
|
else offset = (offset + 0x1ff) & ~0x1ff;
|
|
images[images_done].devOffset = offset;
|
|
if (fseek(out, offset, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if ((images[images_done].chksum = copysum(in, out,
|
|
images[images_done].len, 0x200)) == -1)
|
|
return 1;
|
|
offset += images[images_done].len;
|
|
if (verbose) print_image(images + images_done, "Apple image added: ");
|
|
images_done++;
|
|
fclose(in);
|
|
break;
|
|
case 'l':
|
|
if (!out || ext) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
if (images_done == 5) {
|
|
fprintf(stderr, "Only 5 images supported\n");
|
|
return 1;
|
|
}
|
|
if ((in = fopen(optarg, "rb")) == NULL) {
|
|
fprintf(stderr, "Cannot open linux image file %s\n", optarg);
|
|
return 1;
|
|
}
|
|
if (!offset) offset = FIRST_OFFSET;
|
|
else offset = (offset + 0x1ff) & ~0x1ff;
|
|
images[images_done] = image;
|
|
images[images_done].devOffset = offset;
|
|
if ((images[images_done].len = lengthof(in)) == -1)
|
|
return 1;
|
|
if (fseek(out, offset, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if ((images[images_done].chksum = copysum(in, out,
|
|
images[images_done].len, 0)) == -1)
|
|
return 1;
|
|
offset += images[images_done].len;
|
|
if (verbose) print_image(images + images_done, "Linux image added: ");
|
|
images_done++;
|
|
fclose(in);
|
|
break;
|
|
case 'r':
|
|
if (ext) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
version = strtol(optarg, NULL, 16);
|
|
break;
|
|
case '?':
|
|
fprintf(stderr, "invalid option -%c specified\n", optopt);
|
|
usage();
|
|
return 1;
|
|
case ':':
|
|
fprintf(stderr, "option -%c needs an argument\n", optopt);
|
|
usage();
|
|
return 1;
|
|
}
|
|
|
|
if (argc - optind != 1) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
|
|
if (ext) {
|
|
if ((in = fopen(argv[optind], "rb")) == NULL) {
|
|
fprintf(stderr, "Cannot open firmware image file %s\n", argv[optind]);
|
|
return 1;
|
|
}
|
|
if (extract(in, ext-1, out) == -1) return 1;
|
|
fclose(in); fclose(out);
|
|
return 0;
|
|
}
|
|
else if (!gen_set) {
|
|
usage();
|
|
return 1;
|
|
}
|
|
|
|
printf("Generating firmware image compatible with ");
|
|
if (fw_version == 3) {
|
|
if (needs_rcsc) {
|
|
printf("iPod video\n");
|
|
} else {
|
|
printf("iPod mini, 4g and iPod photo/color...\n");
|
|
}
|
|
} else {
|
|
printf("1g, 2g and 3g iPods...\n");
|
|
}
|
|
|
|
if (!images_done) {
|
|
fprintf(stderr, "no images specified!\n");
|
|
return 1;
|
|
}
|
|
if ((in = fopen(argv[optind], "rb")) == NULL) {
|
|
fprintf(stderr, "Cannot open loader image file %s\n", argv[optind]);
|
|
return 1;
|
|
}
|
|
offset = (offset + 0x1ff) & ~0x1ff;
|
|
if ((len = lengthof(in)) == -1)
|
|
return 1;
|
|
if (fseek(out, offset, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if (copysum(in, out, len, 0) == -1)
|
|
return 1;
|
|
for (i=0; i < images_done; i++) {
|
|
if (images[i].vers > image.vers) image.vers = images[i].vers;
|
|
if (write_entry(images+i, out, offset+0x0100, i) == -1)
|
|
return 1;
|
|
}
|
|
if (version) image.vers = version;
|
|
image.len = offset + len - FIRST_OFFSET;
|
|
image.entryOffset = offset - FIRST_OFFSET;
|
|
if ((image.chksum = copysum(out, NULL, image.len, FIRST_OFFSET)) == -1)
|
|
return 1;
|
|
if (fseek(out, 0x0, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if (fwrite(apple_copyright, 0x100, 1, out) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
version = switch_32(0x5b68695d); /* magic */
|
|
if (fwrite(&version, 4, 1, out) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
version = switch_32(0x00004000); /* magic */
|
|
if (fwrite(&version, 4, 1, out) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if (fw_version == 3) {
|
|
version = switch_32(0x0003010c); /* magic */
|
|
} else {
|
|
version = switch_32(0x0002010c); /* magic */
|
|
}
|
|
|
|
if (fwrite(&version, 4, 1, out) != 1) {
|
|
fprintf(stderr, "fwrite failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if (write_entry(&image, out, TBL, 0) == -1)
|
|
return 1;
|
|
if (verbose) print_image(&image, "Master image: ");
|
|
|
|
if (needs_rcsc) {
|
|
image_t rsrc;
|
|
|
|
if ((in = fopen("apple_sw_5g_rcsc.bin", "rb")) == NULL) {
|
|
fprintf(stderr, "Cannot open firmware image file %s\n", "apple_sw_5g_rcsc.bin");
|
|
return 1;
|
|
}
|
|
if (load_entry(&rsrc, in, 0, 0) == -1) {
|
|
return 1;
|
|
}
|
|
rsrc.devOffset = image.devOffset + image.len;
|
|
rsrc.devOffset = ((rsrc.devOffset + 0x1ff) & ~0x1ff) + 0x200;
|
|
if (fseek(out, rsrc.devOffset + IMAGE_PADDING, SEEK_SET) == -1) {
|
|
fprintf(stderr, "fseek failed: %s\n", strerror(errno));
|
|
return 1;
|
|
}
|
|
if ((rsrc.chksum = copysum(in, out, rsrc.len, 0x200)) == -1) {
|
|
return 1;
|
|
}
|
|
fclose(in);
|
|
|
|
if (write_entry(&rsrc, out, TBL, 1) == -1) {
|
|
return 1;
|
|
}
|
|
|
|
if (verbose) print_image(&rsrc, "rsrc image: ");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|