Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx
[platform/kernel/u-boot.git] / common / cmd_ximg.c
1 /*
2  * (C) Copyright 2000-2004
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * (C) Copyright 2003
6  * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
7  *
8  * See file CREDITS for list of people who contributed to this
9  * project.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License as
13  * published by the Free Software Foundation; either version 2 of
14  * the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24  * MA 02111-1307 USA
25  */
26
27
28 /*
29  * Multi Image extract
30  */
31 #include <common.h>
32 #include <command.h>
33 #include <image.h>
34 #include <watchdog.h>
35 #if defined(CONFIG_BZIP2)
36 #include <bzlib.h>
37 #endif
38 #include <asm/byteorder.h>
39
40 #ifndef CONFIG_SYS_XIMG_LEN
41 /* use 8MByte as default max gunzip size */
42 #define CONFIG_SYS_XIMG_LEN     0x800000
43 #endif
44
45 int
46 do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
47 {
48         ulong           addr = load_addr;
49         ulong           dest = 0;
50         ulong           data, len, count;
51         int             verify;
52         int             part = 0;
53         char            pbuf[10];
54         image_header_t  *hdr;
55 #if defined(CONFIG_FIT)
56         const char      *uname = NULL;
57         const void*     fit_hdr;
58         int             noffset;
59         const void      *fit_data;
60         size_t          fit_len;
61 #endif
62         uint            unc_len = CONFIG_SYS_XIMG_LEN;
63         uint8_t         comp;
64
65         verify = getenv_yesno ("verify");
66
67         if (argc > 1) {
68                 addr = simple_strtoul(argv[1], NULL, 16);
69         }
70         if (argc > 2) {
71                 part = simple_strtoul(argv[2], NULL, 16);
72 #if defined(CONFIG_FIT)
73                 uname = argv[2];
74 #endif
75         }
76         if (argc > 3) {
77                 dest = simple_strtoul(argv[3], NULL, 16);
78         }
79
80         switch (genimg_get_format ((void *)addr)) {
81         case IMAGE_FORMAT_LEGACY:
82
83                 printf("## Copying part %d from legacy image "
84                         "at %08lx ...\n", part, addr);
85
86                 hdr = (image_header_t *)addr;
87                 if (!image_check_magic (hdr)) {
88                         printf("Bad Magic Number\n");
89                         return 1;
90                 }
91
92                 if (!image_check_hcrc (hdr)) {
93                         printf("Bad Header Checksum\n");
94                         return 1;
95                 }
96 #ifdef DEBUG
97                 image_print_contents (hdr);
98 #endif
99
100                 if (!image_check_type (hdr, IH_TYPE_MULTI)) {
101                         printf("Wrong Image Type for %s command\n",
102                                         cmdtp->name);
103                         return 1;
104                 }
105
106                 comp = image_get_comp (hdr);
107                 if ((comp != IH_COMP_NONE) && (argc < 4)) {
108                         printf("Must specify load address for %s command "
109                                         "with compressed image\n",
110                                         cmdtp->name);
111                         return 1;
112                 }
113
114                 if (verify) {
115                         printf("   Verifying Checksum ... ");
116                         if (!image_check_dcrc (hdr)) {
117                                 printf("Bad Data CRC\n");
118                                 return 1;
119                         }
120                         printf("OK\n");
121                 }
122
123                 count = image_multi_count (hdr);
124                 if (part >= count) {
125                         printf("Bad Image Part\n");
126                         return 1;
127                 }
128
129                 image_multi_getimg (hdr, part, &data, &len);
130                 break;
131 #if defined(CONFIG_FIT)
132         case IMAGE_FORMAT_FIT:
133                 if (uname == NULL) {
134                         puts ("No FIT subimage unit name\n");
135                         return 1;
136                 }
137
138                 printf("## Copying '%s' subimage from FIT image "
139                         "at %08lx ...\n", uname, addr);
140
141                 fit_hdr = (const void *)addr;
142                 if (!fit_check_format (fit_hdr)) {
143                         puts ("Bad FIT image format\n");
144                         return 1;
145                 }
146
147                 /* get subimage node offset */
148                 noffset = fit_image_get_node (fit_hdr, uname);
149                 if (noffset < 0) {
150                         printf ("Can't find '%s' FIT subimage\n", uname);
151                         return 1;
152                 }
153
154                 if (fit_image_check_comp (fit_hdr, noffset, IH_COMP_NONE)
155                     && (argc < 4)) {
156                         printf("Must specify load address for %s command "
157                                 "with compressed image\n",
158                                 cmdtp->name);
159                         return 1;
160                 }
161
162                 /* verify integrity */
163                 if (verify) {
164                         if (!fit_image_check_hashes (fit_hdr, noffset)) {
165                                 puts ("Bad Data Hash\n");
166                                 return 1;
167                         }
168                 }
169
170                 /* get subimage data address and length */
171                 if (fit_image_get_data (fit_hdr, noffset,
172                                         &fit_data, &fit_len)) {
173                         puts ("Could not find script subimage data\n");
174                         return 1;
175                 }
176
177                 if (fit_image_get_comp (fit_hdr, noffset, &comp)) {
178                         puts ("Could not find script subimage "
179                                 "compression type\n");
180                         return 1;
181                 }
182
183                 data = (ulong)fit_data;
184                 len = (ulong)fit_len;
185                 break;
186 #endif
187         default:
188                 puts ("Invalid image type for imxtract\n");
189                 return 1;
190         }
191
192         if (argc > 3) {
193                 switch (comp) {
194                 case IH_COMP_NONE:
195 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
196                         {
197                                 size_t l = len;
198                                 size_t tail;
199                                 void *to = (void *) dest;
200                                 void *from = (void *)data;
201
202                                 printf ("   Loading part %d ... ", part);
203
204                                 while (l > 0) {
205                                         tail = (l > CHUNKSZ) ? CHUNKSZ : l;
206                                         WATCHDOG_RESET();
207                                         memmove (to, from, tail);
208                                         to += tail;
209                                         from += tail;
210                                         l -= tail;
211                                 }
212                         }
213 #else   /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
214                         printf ("   Loading part %d ... ", part);
215                         memmove ((char *) dest, (char *)data, len);
216 #endif  /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
217                         break;
218                 case IH_COMP_GZIP:
219                         printf ("   Uncompressing part %d ... ", part);
220                         if (gunzip ((void *) dest, unc_len,
221                                     (uchar *) data, &len) != 0) {
222                                 puts ("GUNZIP ERROR - image not loaded\n");
223                                 return 1;
224                         }
225                         break;
226 #if defined(CONFIG_BZIP2)
227                 case IH_COMP_BZIP2:
228                         printf ("   Uncompressing part %d ... ", part);
229                         /*
230                          * If we've got less than 4 MB of malloc() space,
231                          * use slower decompression algorithm which requires
232                          * at most 2300 KB of memory.
233                          */
234                         i = BZ2_bzBuffToBuffDecompress
235                                 ((char*)ntohl(hdr->ih_load),
236                                  &unc_len, (char *)data, len,
237                                  CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
238                         if (i != BZ_OK) {
239                                 printf ("BUNZIP2 ERROR %d - "
240                                         "image not loaded\n", i);
241                                 return 1;
242                         }
243                         break;
244 #endif /* CONFIG_BZIP2 */
245                 default:
246                         printf ("Unimplemented compression type %d\n", comp);
247                         return 1;
248                 }
249                 puts ("OK\n");
250         }
251
252         sprintf(pbuf, "%8lx", data);
253         setenv("fileaddr", pbuf);
254         sprintf(pbuf, "%8lx", len);
255         setenv("filesize", pbuf);
256
257         return 0;
258 }
259
260 U_BOOT_CMD(imxtract, 4, 1, do_imgextract,
261         "extract a part of a multi-image",
262         "addr part [dest]\n"
263         "    - extract <part> from legacy image at <addr> and copy to <dest>"
264 #if defined(CONFIG_FIT)
265         "\n"
266         "addr uname [dest]\n"
267         "    - extract <uname> subimage from FIT image at <addr> and copy to <dest>"
268 #endif
269 );