274 lines
6.2 KiB
C
274 lines
6.2 KiB
C
/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2003
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* Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Multi Image extract
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*/
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#include <common.h>
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#include <command.h>
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#include <image.h>
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#include <watchdog.h>
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#if defined(CONFIG_BZIP2)
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#include <bzlib.h>
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#endif
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#include <asm/byteorder.h>
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#ifndef CONFIG_SYS_XIMG_LEN
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/* use 8MByte as default max gunzip size */
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#define CONFIG_SYS_XIMG_LEN 0x800000
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#endif
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int
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do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
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{
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ulong addr = load_addr;
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ulong dest = 0;
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ulong data, len, count;
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int verify;
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int part = 0;
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char pbuf[10];
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image_header_t *hdr;
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#if defined(CONFIG_FIT)
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const char *uname = NULL;
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const void* fit_hdr;
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int noffset;
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const void *fit_data;
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size_t fit_len;
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#endif
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uint unc_len = CONFIG_SYS_XIMG_LEN;
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uint8_t comp;
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verify = getenv_yesno ("verify");
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if (argc > 1) {
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addr = simple_strtoul(argv[1], NULL, 16);
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}
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if (argc > 2) {
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part = simple_strtoul(argv[2], NULL, 16);
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#if defined(CONFIG_FIT)
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uname = argv[2];
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#endif
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}
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if (argc > 3) {
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dest = simple_strtoul(argv[3], NULL, 16);
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}
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switch (genimg_get_format ((void *)addr)) {
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case IMAGE_FORMAT_LEGACY:
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printf("## Copying part %d from legacy image "
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"at %08lx ...\n", part, addr);
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hdr = (image_header_t *)addr;
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if (!image_check_magic (hdr)) {
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printf("Bad Magic Number\n");
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return 1;
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}
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if (!image_check_hcrc (hdr)) {
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printf("Bad Header Checksum\n");
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return 1;
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}
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#ifdef DEBUG
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image_print_contents (hdr);
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#endif
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if (!image_check_type (hdr, IH_TYPE_MULTI)) {
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printf("Wrong Image Type for %s command\n",
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cmdtp->name);
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return 1;
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}
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comp = image_get_comp (hdr);
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if ((comp != IH_COMP_NONE) && (argc < 4)) {
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printf("Must specify load address for %s command "
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"with compressed image\n",
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cmdtp->name);
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return 1;
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}
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if (verify) {
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printf(" Verifying Checksum ... ");
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if (!image_check_dcrc (hdr)) {
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printf("Bad Data CRC\n");
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return 1;
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}
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printf("OK\n");
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}
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count = image_multi_count (hdr);
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if (part >= count) {
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printf("Bad Image Part\n");
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return 1;
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}
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image_multi_getimg (hdr, part, &data, &len);
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break;
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#if defined(CONFIG_FIT)
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case IMAGE_FORMAT_FIT:
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if (uname == NULL) {
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puts ("No FIT subimage unit name\n");
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return 1;
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}
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printf("## Copying '%s' subimage from FIT image "
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"at %08lx ...\n", uname, addr);
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fit_hdr = (const void *)addr;
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if (!fit_check_format (fit_hdr)) {
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puts ("Bad FIT image format\n");
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return 1;
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}
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/* get subimage node offset */
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noffset = fit_image_get_node (fit_hdr, uname);
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if (noffset < 0) {
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printf ("Can't find '%s' FIT subimage\n", uname);
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return 1;
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}
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if (fit_image_check_comp (fit_hdr, noffset, IH_COMP_NONE)
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&& (argc < 4)) {
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printf("Must specify load address for %s command "
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"with compressed image\n",
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cmdtp->name);
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return 1;
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}
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/* verify integrity */
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if (verify) {
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if (!fit_image_check_hashes (fit_hdr, noffset)) {
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puts ("Bad Data Hash\n");
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return 1;
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}
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}
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/* get subimage data address and length */
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if (fit_image_get_data (fit_hdr, noffset,
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&fit_data, &fit_len)) {
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puts ("Could not find script subimage data\n");
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return 1;
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}
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if (fit_image_get_comp (fit_hdr, noffset, &comp)) {
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puts ("Could not find script subimage "
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"compression type\n");
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return 1;
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}
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data = (ulong)fit_data;
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len = (ulong)fit_len;
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break;
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#endif
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default:
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puts ("Invalid image type for imxtract\n");
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return 1;
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}
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if (argc > 3) {
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switch (comp) {
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case IH_COMP_NONE:
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#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
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{
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size_t l = len;
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size_t tail;
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void *to = (void *) dest;
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void *from = (void *)data;
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printf (" Loading part %d ... ", part);
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while (l > 0) {
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tail = (l > CHUNKSZ) ? CHUNKSZ : l;
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WATCHDOG_RESET();
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memmove (to, from, tail);
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to += tail;
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from += tail;
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l -= tail;
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}
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}
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#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
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printf (" Loading part %d ... ", part);
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memmove ((char *) dest, (char *)data, len);
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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break;
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case IH_COMP_GZIP:
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printf (" Uncompressing part %d ... ", part);
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if (gunzip ((void *) dest, unc_len,
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(uchar *) data, &len) != 0) {
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puts ("GUNZIP ERROR - image not loaded\n");
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return 1;
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}
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break;
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#if defined(CONFIG_BZIP2)
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case IH_COMP_BZIP2:
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{
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int i;
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printf (" Uncompressing part %d ... ", part);
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/*
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* If we've got less than 4 MB of malloc()
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* space, use slower decompression algorithm
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* which requires at most 2300 KB of memory.
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*/
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i = BZ2_bzBuffToBuffDecompress(
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(char*)ntohl(hdr->ih_load),
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&unc_len, (char *)data, len,
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CONFIG_SYS_MALLOC_LEN < (4096 * 1024),
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0);
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if (i != BZ_OK) {
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printf ("BUNZIP2 ERROR %d - "
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"image not loaded\n", i);
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return 1;
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}
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}
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break;
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#endif /* CONFIG_BZIP2 */
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default:
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printf ("Unimplemented compression type %d\n", comp);
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return 1;
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}
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puts ("OK\n");
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}
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sprintf(pbuf, "%8lx", data);
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setenv("fileaddr", pbuf);
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sprintf(pbuf, "%8lx", len);
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setenv("filesize", pbuf);
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return 0;
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}
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U_BOOT_CMD(imxtract, 4, 1, do_imgextract,
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"extract a part of a multi-image",
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"addr part [dest]\n"
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" - extract <part> from legacy image at <addr> and copy to <dest>"
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#if defined(CONFIG_FIT)
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"\n"
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"addr uname [dest]\n"
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" - extract <uname> subimage from FIT image at <addr> and copy to <dest>"
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#endif
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);
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