2 * (C) Copyright 2003-2004
3 * Gary Jennejohn, DENX Software Engineering, gj@denx.de.
4 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/byteorder.h>
30 #if defined(CFG_NAND_LEGACY)
31 #include <linux/mtd/nand_legacy.h>
36 #include "auto_update.h"
38 #ifdef CONFIG_AUTO_UPDATE
40 #if !defined(CONFIG_CMD_FAT)
41 #error "must define CONFIG_CMD_FAT"
44 extern au_image_t au_image[];
45 extern int N_AU_IMAGES;
52 #define debug(fmt,args...) printf (fmt ,##args)
54 #define debug(fmt,args...)
58 #define LOAD_ADDR ((unsigned char *)0x100000) /* where to load files into memory */
59 #define MAX_LOADSZ 0x1e00000
62 extern int fat_register_device(block_dev_desc_t *, int);
63 extern int file_fat_detectfs(void);
64 extern long file_fat_read(const char *, void *, unsigned long);
65 long do_fat_read (const char *filename, void *buffer, unsigned long maxsize, int dols);
67 extern int trab_vfd (ulong);
68 extern int transfer_pic(unsigned char, unsigned char *, int, int);
70 extern int flash_sect_erase(ulong, ulong);
71 extern int flash_sect_protect (int, ulong, ulong);
72 extern int flash_write (char *, ulong, ulong);
74 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
75 /* references to names in cmd_nand.c */
76 #define NANDRW_READ 0x01
77 #define NANDRW_WRITE 0x00
78 #define NANDRW_JFFS2 0x02
79 #define NANDRW_JFFS2_SKIP 0x04
80 extern struct nand_chip nand_dev_desc[];
81 extern int nand_legacy_rw(struct nand_chip* nand, int cmd, size_t start, size_t len,
82 size_t * retlen, u_char * buf);
83 extern int nand_legacy_erase(struct nand_chip* nand, size_t ofs, size_t len, int clean);
86 extern block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
89 int au_check_cksum_valid(int i, long nbytes)
93 hdr = (image_header_t *)LOAD_ADDR;
95 if ((au_image[i].type == AU_FIRMWARE) &&
96 (au_image[i].size != image_get_data_size (hdr))) {
97 printf ("Image %s has wrong size\n", au_image[i].name);
101 if (nbytes != (image_get_image_size (hdr))) {
102 printf ("Image %s bad total SIZE\n", au_image[i].name);
106 /* check the data CRC */
107 if (!image_check_dcrc (hdr)) {
108 printf ("Image %s bad data checksum\n", au_image[i].name);
115 int au_check_header_valid(int i, long nbytes)
118 unsigned long checksum;
120 hdr = (image_header_t *)LOAD_ADDR;
121 /* check the easy ones first */
122 #undef CHECK_VALID_DEBUG
123 #ifdef CHECK_VALID_DEBUG
124 printf("magic %#x %#x ", image_get_magic (hdr), IH_MAGIC);
125 printf("arch %#x %#x ", image_get_arch (hdr), IH_ARCH_PPC);
126 printf("size %#x %#lx ", image_get_data_size (hdr), nbytes);
127 printf("type %#x %#x ", image_get_type (hdr), IH_TYPE_KERNEL);
129 if (nbytes < image_get_header_size ())
131 printf ("Image %s bad header SIZE\n", au_image[i].name);
134 if (!image_check_magic (hdr) || !image_check_arch (hdr, IH_ARCH_PPC))
136 printf ("Image %s bad MAGIC or ARCH\n", au_image[i].name);
139 if (!image_check_hcrc (hdr)) {
140 printf ("Image %s bad header checksum\n", au_image[i].name);
144 /* check the type - could do this all in one gigantic if() */
145 if ((au_image[i].type == AU_FIRMWARE) && !image_check_type (hdr, IH_TYPE_FIRMWARE)) {
146 printf ("Image %s wrong type\n", au_image[i].name);
149 if ((au_image[i].type == AU_SCRIPT) && !image_check_type (hdr, IH_TYPE_SCRIPT)) {
150 printf ("Image %s wrong type\n", au_image[i].name);
154 /* recycle checksum */
155 checksum = image_get_data_size (hdr);
157 #if 0 /* test-only */
158 /* for kernel and app the image header must also fit into flash */
160 checksum += image_get_header_size ();
161 /* check the size does not exceed space in flash. HUSH scripts */
162 /* all have ausize[] set to 0 */
163 if ((ausize[idx] != 0) && (ausize[idx] < checksum)) {
164 printf ("Image %s is bigger than FLASH\n", au_image[i].name);
173 int au_do_update(int i, long sz)
181 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
185 hdr = (image_header_t *)LOAD_ADDR;
187 switch (au_image[i].type) {
189 printf("Executing script %s\n", au_image[i].name);
191 /* execute a script */
192 if (image_check_type (hdr, IH_TYPE_SCRIPT)) {
193 addr = (char *)((char *)hdr + image_get_header_size ());
194 /* stick a NULL at the end of the script, otherwise */
195 /* parse_string_outer() runs off the end. */
196 addr[image_get_data_size (hdr)] = 0;
200 * Replace cr/lf with ;
203 while (addr[k] != 0) {
204 if ((addr[k] == 10) || (addr[k] == 13)) {
210 run_command(addr, 0);
219 start = au_image[i].start;
220 end = au_image[i].start + au_image[i].size - 1;
223 * do not update firmware when image is already in flash.
225 if (au_image[i].type == AU_FIRMWARE) {
226 char *orig = (char*)start;
227 char *new = (char *)((char *)hdr + image_get_header_size ());
228 nbytes = image_get_data_size (hdr);
231 if (*orig++ != *new++) {
236 printf("Skipping firmware update - images are identical\n");
241 /* unprotect the address range */
242 /* this assumes that ONLY the firmware is protected! */
243 if (au_image[i].type == AU_FIRMWARE) {
244 flash_sect_protect(0, start, end);
248 * erase the address range.
250 if (au_image[i].type != AU_NAND) {
251 printf("Updating NOR FLASH with image %s\n", au_image[i].name);
252 debug ("flash_sect_erase(%lx, %lx);\n", start, end);
253 flash_sect_erase(start, end);
255 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
256 printf("Updating NAND FLASH with image %s\n", au_image[i].name);
257 debug ("nand_legacy_erase(%lx, %lx);\n", start, end);
258 rc = nand_legacy_erase (nand_dev_desc, start, end - start + 1, 0);
259 debug ("nand_legacy_erase returned %x\n", rc);
265 /* strip the header - except for the kernel and ramdisk */
266 if (au_image[i].type != AU_FIRMWARE) {
268 off = image_get_header_size ();
269 nbytes = image_get_image_size (hdr);
271 addr = (char *)((char *)hdr + image_get_header_size ());
273 nbytes = image_get_data_size (hdr);
277 * copy the data from RAM to FLASH
279 if (au_image[i].type != AU_NAND) {
280 debug ("flash_write(%p, %lx %x)\n", addr, start, nbytes);
281 rc = flash_write((char *)addr, start, nbytes);
283 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
284 debug ("nand_legacy_rw(%p, %lx %x)\n", addr, start, nbytes);
285 rc = nand_legacy_rw(nand_dev_desc, NANDRW_WRITE | NANDRW_JFFS2,
286 start, nbytes, (size_t *)&total, (uchar *)addr);
287 debug ("nand_legacy_rw: ret=%x total=%d nbytes=%d\n", rc, total, nbytes);
293 printf("Flashing failed due to error %d\n", rc);
298 * check the dcrc of the copy
300 if (au_image[i].type != AU_NAND) {
301 rc = crc32 (0, (uchar *)(start + off), image_get_data_size (hdr));
303 #if defined(CONFIG_CMD_NAND) && defined(CFG_NAND_LEGACY)
304 rc = nand_legacy_rw(nand_dev_desc, NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP,
305 start, nbytes, (size_t *)&total, (uchar *)addr);
306 rc = crc32 (0, (uchar *)(addr + off), image_get_data_size (hdr));
309 if (rc != image_get_dcrc (hdr)) {
310 printf ("Image %s Bad Data Checksum After COPY\n", au_image[i].name);
314 /* protect the address range */
315 /* this assumes that ONLY the firmware is protected! */
316 if (au_image[i].type == AU_FIRMWARE) {
317 flash_sect_protect(1, start, end);
323 printf("Wrong image type selected!\n");
330 static void process_macros (const char *input, char *output)
333 const char *varname_start = NULL;
334 int inputcnt = strlen (input);
335 int outputcnt = CFG_CBSIZE;
336 int state = 0; /* 0 = waiting for '$' */
337 /* 1 = waiting for '(' or '{' */
338 /* 2 = waiting for ')' or '}' */
339 /* 3 = waiting for ''' */
341 char *output_start = output;
343 printf ("[PROCESS_MACROS] INPUT len %d: \"%s\"\n", strlen(input), input);
346 prev = '\0'; /* previous character */
348 while (inputcnt && outputcnt) {
353 /* remove one level of escape characters */
354 if ((c == '\\') && (prev != '\\')) {
363 case 0: /* Waiting for (unescaped) $ */
364 if ((c == '\'') && (prev != '\\')) {
368 if ((c == '$') && (prev != '\\')) {
375 case 1: /* Waiting for ( */
376 if (c == '(' || c == '{') {
378 varname_start = input;
390 case 2: /* Waiting for ) */
391 if (c == ')' || c == '}') {
393 char envname[CFG_CBSIZE], *envval;
394 int envcnt = input-varname_start-1; /* Varname # of chars */
396 /* Get the varname */
397 for (i = 0; i < envcnt; i++) {
398 envname[i] = varname_start[i];
403 envval = getenv (envname);
405 /* Copy into the line if it exists */
407 while ((*envval) && outputcnt) {
408 *(output++) = *(envval++);
411 /* Look for another '$' */
415 case 3: /* Waiting for ' */
416 if ((c == '\'') && (prev != '\\')) {
431 printf ("[PROCESS_MACROS] OUTPUT len %d: \"%s\"\n",
432 strlen(output_start), output_start);
438 * this is called from board_init() after the hardware has been set up
439 * and is usable. That seems like a good time to do this.
440 * Right now the return value is ignored.
442 int do_auto_update(void)
444 block_dev_desc_t *stor_dev;
446 int i, res, cnt, old_ctrlc, got_ctrlc;
451 * Check whether a CompactFlash is inserted
453 if (ide_dev_desc[0].type == DEV_TYPE_UNKNOWN) {
454 return -1; /* no disk detected! */
457 /* check whether it has a partition table */
458 stor_dev = get_dev("ide", 0);
459 if (stor_dev == NULL) {
460 debug ("Uknown device type\n");
463 if (fat_register_device(stor_dev, 1) != 0) {
464 debug ("Unable to register ide disk 0:1 for fatls\n");
469 * Check if magic file is present
471 if (do_fat_read(AU_MAGIC_FILE, buffer, sizeof(buffer), LS_NO) <= 0) {
475 #ifdef CONFIG_AUTO_UPDATE_SHOW
476 board_auto_update_show(1);
478 puts("\nAutoUpdate Disk detected! Trying to update system...\n");
480 /* make sure that we see CTRL-C and save the old state */
481 old_ctrlc = disable_ctrlc(0);
483 /* just loop thru all the possible files */
484 for (i = 0; i < N_AU_IMAGES; i++) {
486 * Try to expand the environment var in the fname
488 process_macros(au_image[i].name, str);
489 strcpy(au_image[i].name, str);
491 printf("Reading %s ...", au_image[i].name);
492 /* just read the header */
493 sz = do_fat_read(au_image[i].name, LOAD_ADDR, image_get_header_size (), LS_NO);
494 debug ("read %s sz %ld hdr %d\n",
495 au_image[i].name, sz, image_get_header_size ());
496 if (sz <= 0 || sz < image_get_header_size ()) {
497 puts(" not found\n");
500 if (au_check_header_valid(i, sz) < 0) {
501 puts(" header not valid\n");
504 sz = do_fat_read(au_image[i].name, LOAD_ADDR, MAX_LOADSZ, LS_NO);
505 debug ("read %s sz %ld hdr %d\n",
506 au_image[i].name, sz, image_get_header_size ());
507 if (sz <= 0 || sz <= image_get_header_size ()) {
508 puts(" not found\n");
511 if (au_check_cksum_valid(i, sz) < 0) {
512 puts(" checksum not valid\n");
518 res = au_do_update(i, sz);
519 /* let the user break out of the loop */
520 if (ctrlc() || had_ctrlc()) {
530 /* restore the old state */
531 disable_ctrlc(old_ctrlc);
533 puts("AutoUpdate finished\n\n");
534 #ifdef CONFIG_AUTO_UPDATE_SHOW
535 board_auto_update_show(0);
542 int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
549 autoupd, 1, 1, auto_update,
550 "autoupd - Automatically update images\n",
553 #endif /* CONFIG_AUTO_UPDATE */