* mtd - simple memory technology device manipulation tool
*
* Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>,
- * Copyright (C) 2005-2009 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2005-2009 Felix Fietkau <nbd@nbd.name>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
*/
#define _GNU_SOURCE
+#include <byteswap.h>
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#define MAX_ARGS 8
#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
+#define TRX_MAGIC 0x48445230 /* "HDR0" */
+#define SEAMA_MAGIC 0x5ea3a417
+
+#if !defined(__BYTE_ORDER)
+#error "Unknown byte order"
+#endif
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define cpu_to_be32(x) (x)
+#define be32_to_cpu(x) (x)
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+#define cpu_to_be32(x) bswap_32(x)
+#define be32_to_cpu(x) bswap_32(x)
+#else
+#error "Unsupported endianness"
+#endif
+
+enum mtd_image_format {
+ MTD_IMAGE_FORMAT_UNKNOWN,
+ MTD_IMAGE_FORMAT_TRX,
+ MTD_IMAGE_FORMAT_SEAMA,
+};
+
static char *buf = NULL;
static char *imagefile = NULL;
+static enum mtd_image_format imageformat = MTD_IMAGE_FORMAT_UNKNOWN;
static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR;
static int buflen = 0;
int quiet;
return 0;
}
-
static int
image_check(int imagefd, const char *mtd)
{
+ uint32_t magic;
int ret = 1;
- if (trx_check) {
- ret = trx_check(imagefd, mtd, buf, &buflen);
+ int bufread;
+
+ while (buflen < sizeof(magic)) {
+ bufread = read(imagefd, buf + buflen, sizeof(magic) - buflen);
+ if (bufread < 1)
+ break;
+
+ buflen += bufread;
+ }
+
+ if (buflen < sizeof(magic)) {
+ fprintf(stdout, "Could not get image magic\n");
+ return 0;
+ }
+
+ magic = ((uint32_t *)buf)[0];
+
+ if (be32_to_cpu(magic) == TRX_MAGIC)
+ imageformat = MTD_IMAGE_FORMAT_TRX;
+ else if (be32_to_cpu(magic) == SEAMA_MAGIC)
+ imageformat = MTD_IMAGE_FORMAT_SEAMA;
+
+ switch (imageformat) {
+ case MTD_IMAGE_FORMAT_TRX:
+ if (trx_check)
+ ret = trx_check(imagefd, mtd, buf, &buflen);
+ break;
+ case MTD_IMAGE_FORMAT_SEAMA:
+ break;
+ default:
+#ifdef target_brcm
+ if (!strcmp(mtd, "firmware"))
+ ret = 0;
+#endif
+ break;
}
return ret;
offset = 0;
}
- if (jffs2_replaced && trx_fixup) {
- trx_fixup(fd, mtd);
+ if (jffs2_replaced) {
+ switch (imageformat) {
+ case MTD_IMAGE_FORMAT_TRX:
+ if (trx_fixup)
+ trx_fixup(fd, mtd);
+ break;
+ case MTD_IMAGE_FORMAT_SEAMA:
+ if (mtd_fixseama)
+ mtd_fixseama(mtd, 0);
+ break;
+ default:
+ break;
+ }
}
if (!quiet)
if (mtd_fixtrx) {
fprintf(stderr,
" -o offset offset of the image header in the partition(for fixtrx)\n");
+ fprintf(stderr,
+ " -c datasize amount of data to be used for checksum calculation (for fixtrx)\n");
}
fprintf(stderr,
#ifdef FIS_SUPPORT
int ch, i, boot, imagefd = 0, force, unlocked;
char *erase[MAX_ARGS], *device = NULL;
char *fis_layout = NULL;
- size_t offset = 0, part_offset = 0, dump_len = 0;
+ size_t offset = 0, data_size = 0, part_offset = 0, dump_len = 0;
enum {
CMD_ERASE,
CMD_WRITE,
#ifdef FIS_SUPPORT
"F:"
#endif
- "frnqe:d:s:j:p:o:l:")) != -1)
+ "frnqe:d:s:j:p:o:c:l:")) != -1)
switch (ch) {
case 'f':
force = 1;
usage();
}
break;
+ case 'c':
+ errno = 0;
+ data_size = strtoul(optarg, 0, 0);
+ if (errno) {
+ fprintf(stderr, "-d: illegal numeric string\n");
+ usage();
+ }
+ break;
#ifdef FIS_SUPPORT
case 'F':
fis_layout = optarg;
mtd_write_jffs2(device, imagefile, jffs2dir);
break;
case CMD_FIXTRX:
- if (mtd_fixtrx) {
- mtd_fixtrx(device, offset);
- }
+ if (mtd_fixtrx) {
+ mtd_fixtrx(device, offset, data_size);
+ }
+ break;
case CMD_RESETBC:
- if (mtd_resetbc) {
- mtd_resetbc(device);
- }
+ if (mtd_resetbc) {
+ mtd_resetbc(device);
+ }
+ break;
case CMD_FIXSEAMA:
if (mtd_fixseama)
- mtd_fixseama(device, 0);
+ mtd_fixseama(device, 0);
break;
}