tools/firmware-utils/src/mkcsysimg.c

   1 /*
   2  *  $Id$
   3  *
   4  *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
   5  *
   6  *  This program was based on the code found in various Linux
   7  *  source tarballs released by Edimax for it's devices.
   8  *  Original author: David Hsu <davidhsu@realtek.com.tw>
   9  *
  10  *  This program is free software; you can redistribute it and/or
  11  *  modify it under the terms of the GNU General Public License
  12  *  as published by the Free Software Foundation; either version 2
  13  *  of the License, or (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the
  22  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23  *  Boston, MA  02110-1301, USA.
  24  */
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdint.h>
  29 #include <string.h>
  30 #include <unistd.h>     /* for unlink() */
  31 #include <libgen.h>
  32 #include <getopt.h>     /* for getopt() */
  33 #include <stdarg.h>
  34 #include <errno.h>
  35 #include <sys/stat.h>
  36 #include <endian.h>     /* for __BYTE_ORDER */
  37 #if defined(__CYGWIN__)
  38 #  include <byteswap.h>
  39 #endif
  40
  41 #include "csysimg.h"
  42
  43 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  44 #  define HOST_TO_LE16(x)       (x)
  45 #  define HOST_TO_LE32(x)       (x)
  46 #  define LE16_TO_HOST(x)       (x)
  47 #  define LE32_TO_HOST(x)       (x)
  48 #else
  49 #  define HOST_TO_LE16(x)       bswap_16(x)
  50 #  define HOST_TO_LE32(x)       bswap_32(x)
  51 #  define LE16_TO_HOST(x)       bswap_16(x)
  52 #  define LE32_TO_HOST(x)       bswap_32(x)
  53 #endif
  54
  55 #define ALIGN(x,y)      ((x)+((y)-1)) & ~((y)-1)
  56
  57 #define MAX_NUM_BLOCKS  8
  58 #define MAX_ARG_COUNT   32
  59 #define MAX_ARG_LEN     1024
  60 #define FILE_BUF_LEN    (16*1024)
  61 #define CSYS_PADC       0xFF
  62
  63 #define BLOCK_TYPE_BOOT 0
  64 #define BLOCK_TYPE_CONF 1
  65 #define BLOCK_TYPE_WEBP 2
  66 #define BLOCK_TYPE_CODE 3
  67 #define BLOCK_TYPE_XTRA 4
  68
  69
  70 struct csum_state{
  71         int     size;
  72         uint16_t val;
  73         uint16_t tmp;
  74         int     odd;
  75 };
  76
  77
  78 struct csys_block {
  79         int             type;   /* type of the block */
  80
  81         int             need_file;
  82         char            *file_name;     /* name of the file */
  83         uint32_t        file_size;      /* length of the file */
  84
  85         uint32_t        size;
  86         int             size_set;
  87         uint8_t         padc;
  88
  89         uint32_t        size_hdr;
  90         uint32_t        size_csum;
  91         uint32_t        size_avail;
  92
  93         unsigned char   sig[SIG_LEN];
  94         uint32_t        addr;
  95         int             addr_set;
  96         struct csum_state *css;
  97 };
  98
  99
 100 struct board_info {
 101         char *model;
 102         char *name;
 103         uint32_t flash_size;
 104
 105         char sig_boot[SIG_LEN];
 106         char sig_conf[SIG_LEN];
 107         char sig_webp[SIG_LEN];
 108
 109         uint32_t boot_size;
 110         uint32_t conf_size;
 111         uint32_t webp_size;
 112         uint32_t webp_size_max;
 113         uint32_t code_size;
 114
 115         uint32_t addr_code;
 116         uint32_t addr_webp;
 117 };
 118
 119 #define BOARD(m, n, f, sigb, sigw, bs, cs, ws, ac, aw) {\
 120         .model = m, .name = n, .flash_size = f<<20, \
 121         .sig_boot = sigb, .sig_conf = SIG_CONF, .sig_webp = sigw, \
 122         .boot_size = bs, .conf_size = cs, \
 123         .webp_size = ws, .webp_size_max = 3*0x10000, \
 124         .addr_code = ac, .addr_webp = aw \
 125         }
 126
 127 #define BOARD_ADM(m,n,f, sigw) BOARD(m,n,f, ADM_BOOT_SIG, sigw, \
 128         ADM_BOOT_SIZE, ADM_CONF_SIZE, ADM_WEBP_SIZE, \
 129         ADM_CODE_ADDR, ADM_WEBP_ADDR)
 130
 131
 132 /*
 133  * Globals
 134  */
 135 char *progname;
 136 char *ofname = NULL;
 137 int verblevel = 0;
 138 int invalid_causes_error = 1;
 139 int keep_invalid_images = 0;
 140
 141 struct board_info *board = NULL;
 142
 143 struct csys_block *boot_block = NULL;
 144 struct csys_block *conf_block = NULL;
 145 struct csys_block *webp_block = NULL;
 146 struct csys_block *code_block = NULL;
 147
 148 struct csys_block blocks[MAX_NUM_BLOCKS];
 149 int num_blocks = 0;
 150
 151 static struct board_info boards[] = {
 152         /* The original Edimax products */
 153         BOARD_ADM("BR-6104K", "Edimax BR-6104K", 2, SIG_BR6104K),
 154         BOARD_ADM("BR-6104KP", "Edimax BR-6104KP", 2, SIG_BR6104KP),
 155         BOARD_ADM("BR-6104Wg", "Edimax BR-6104Wg", 2, SIG_BR6104Wg),
 156         BOARD_ADM("BR-6114WG", "Edimax BR-6114WG", 2, SIG_BR6114WG),
 157         BOARD_ADM("BR-6524K", "Edimax BR-6524K", 2, SIG_BR6524K),
 158         BOARD_ADM("BR-6524KP", "Edimax BR-6524KP", 2, SIG_BR6524KP),
 159         BOARD_ADM("BR-6524WG", "Edimax BR-6524WG", 4, SIG_BR6524WG),
 160         BOARD_ADM("BR-6524WP", "Edimax BR-6524WP", 4, SIG_BR6524WP),
 161         BOARD_ADM("BR-6541K", "Edimax BR-6541K", 2, SIG_BR6541K),
 162         BOARD_ADM("BR-6541KP", "Edimax BR-6541K", 2, SIG_BR6541KP),
 163         BOARD_ADM("BR-6541WP", "Edimax BR-6541WP", 4, SIG_BR6541WP),
 164         BOARD_ADM("EW-7207APg", "Edimax EW-7207APg", 2, SIG_EW7207APg),
 165         BOARD_ADM("PS-1205UWg", "Edimax PS-1205UWg", 2, SIG_PS1205UWg),
 166         BOARD_ADM("PS-3205U", "Edimax PS-3205U", 2, SIG_PS3205U),
 167         BOARD_ADM("PS-3205UWg", "Edimax PS-3205UWg", 2, SIG_PS3205UWg),
 168
 169         /* Hawking products */
 170         BOARD_ADM("H2BR4", "Hawking H2BR4", 2, SIG_H2BR4),
 171         BOARD_ADM("H2WR54G", "Hawking H2WR54G", 4, SIG_H2WR54G),
 172
 173         /* Planet products */
 174         BOARD_ADM("XRT-401D", "Planet XRT-401D", 2, SIG_XRT401D),
 175         BOARD_ADM("XRT-402D", "Planet XRT-402D", 2, SIG_XRT402D),
 176
 177         {.model = NULL}
 178 };
 179
 180 /*
 181  * Message macros
 182  */
 183 #define ERR(fmt, ...) do { \
 184         fflush(0); \
 185         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ ); \
 186 } while (0)
 187
 188 #define ERRS(fmt, ...) do { \
 189         int save = errno; \
 190         fflush(0); \
 191         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ \
 192                 , strerror(save)); \
 193 } while (0)
 194
 195 #define WARN(fmt, ...) do { \
 196         fprintf(stderr, "[%s] *** warning: " fmt "\n", progname, ## __VA_ARGS__ ); \
 197 } while (0)
 198
 199 #define DBG(lev, fmt, ...) do { \
 200         if (verblevel < lev) \
 201                 break;\
 202         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 203 } while (0)
 204
 205 #define ERR_FATAL               -1
 206 #define ERR_INVALID_IMAGE       -2
 207
 208 void
 209 usage(int status)
 210 {
 211         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 212         struct board_info *board;
 213
 214         fprintf(stream, "Usage: %s [OPTIONS...] <file>\n", progname);
 215         fprintf(stream,
 216 "\n"
 217 "Options:\n"
 218 "  -B <board>      create image for the board specified with <board>.\n"
 219 "                  valid <board> values:\n"
 220         );
 221         for (board = boards; board->model != NULL; board++){
 222                 fprintf(stream,
 223 "                  %-12s: %s\n",
 224                  board->model, board->name);
 225         };
 226         fprintf(stream,
 227 "  -d              don't throw error on invalid images\n"
 228 "  -k              keep invalid images\n"
 229 "  -b <file>[:<len>[:<padc>]]\n"
 230 "                  add boot code to the image\n"
 231 "  -c <file>[:<len>[:<padc>]]\n"
 232 "                  add configuration settings to the image\n"
 233 "  -r <file>:[<addr>][:<len>[:<padc>]]\n"
 234 "                  add runtime code to the image\n"
 235 "  -w [<file>:[<addr>][:<len>[:<padc>]]]\n"
 236 "                  add webpages to the image\n"
 237 "  -x <file>[:<len>[:<padc>]]\n"
 238 "                  add extra data at the end of the image\n"
 239 "  -h              show this screen\n"
 240 "Parameters:\n"
 241 "  <file>          write output to the file <file>\n"
 242         );
 243
 244         exit(status);
 245 }
 246
 247
 248 /*
 249  * argument parsing
 250  */
 251 int
 252 str2u32(char *arg, uint32_t *val)
 253 {
 254         char *err = NULL;
 255         uint32_t t;
 256
 257         errno=0;
 258         t = strtoul(arg, &err, 0);
 259         if (errno || (err==arg) || ((err != NULL) && *err)) {
 260                 return -1;
 261         }
 262
 263         *val = t;
 264         return 0;
 265 }
 266
 267
 268 int
 269 str2u16(char *arg, uint16_t *val)
 270 {
 271         char *err = NULL;
 272         uint32_t t;
 273
 274         errno=0;
 275         t = strtoul(arg, &err, 0);
 276         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 277                 return -1;
 278         }
 279
 280         *val = t & 0xFFFF;
 281         return 0;
 282 }
 283
 284 int
 285 str2u8(char *arg, uint8_t *val)
 286 {
 287         char *err = NULL;
 288         uint32_t t;
 289
 290         errno=0;
 291         t = strtoul(arg, &err, 0);
 292         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 293                 return -1;
 294         }
 295
 296         *val = t & 0xFF;
 297         return 0;
 298 }
 299
 300 int
 301 str2sig(char *arg, uint32_t *sig)
 302 {
 303         if (strlen(arg) != 4)
 304                 return -1;
 305
 306         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 307
 308         return 0;
 309 }
 310
 311
 312 int
 313 parse_arg(char *arg, char *buf, char *argv[])
 314 {
 315         int res = 0;
 316         size_t argl;
 317         char *tok;
 318         char **ap = &buf;
 319         int i;
 320
 321         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 322
 323         if ((arg == NULL)) {
 324                 /* no arguments */
 325                 return 0;
 326         }
 327
 328         argl = strlen(arg);
 329         if (argl == 0) {
 330                 /* no arguments */
 331                 return 0;
 332         }
 333
 334         if (argl >= MAX_ARG_LEN) {
 335                 /* argument is too long */
 336                 argl = MAX_ARG_LEN-1;
 337         }
 338
 339         memcpy(buf, arg, argl);
 340         buf[argl] = '\0';
 341
 342         for (i = 0; i < MAX_ARG_COUNT; i++) {
 343                 tok = strsep(ap, ":");
 344                 if (tok == NULL) {
 345                         break;
 346                 }
 347 #if 0
 348                 else if (tok[0] == '\0') {
 349                         break;
 350                 }
 351 #endif
 352                 argv[i] = tok;
 353                 res++;
 354         }
 355
 356         return res;
 357 }
 358
 359
 360 int
 361 required_arg(char c, char *arg)
 362 {
 363         if (arg == NULL || *arg != '-')
 364                 return 0;
 365
 366         ERR("option -%c requires an argument\n", c);
 367         return ERR_FATAL;
 368 }
 369
 370
 371 int
 372 is_empty_arg(char *arg)
 373 {
 374         int ret = 1;
 375         if (arg != NULL) {
 376                 if (*arg) ret = 0;
 377         };
 378         return ret;
 379 }
 380
 381
 382 void
 383 csum8_update(uint8_t *p, uint32_t len, struct csum_state *css)
 384 {
 385         for ( ; len > 0; len --) {
 386                 css->val += *p++;
 387         }
 388 }
 389
 390
 391 uint16_t
 392 csum8_get(struct csum_state *css)
 393 {
 394         uint8_t t;
 395
 396         t = css->val;
 397         return ~t + 1;
 398 }
 399
 400
 401 void
 402 csum16_update(uint8_t *p, uint32_t len, struct csum_state *css)
 403 {
 404         uint16_t t;
 405
 406         if (css->odd) {
 407                 t = css->tmp + (p[0]<<8);
 408                 css->val += LE16_TO_HOST(t);
 409                 css->odd = 0;
 410                 len--;
 411                 p++;
 412         }
 413
 414         for ( ; len > 1; len -= 2, p +=2 ) {
 415                 t = p[0] + (p[1] << 8);
 416                 css->val += LE16_TO_HOST(t);
 417         }
 418
 419         if (len == 1) {
 420                 css->tmp = p[0];
 421                 css->odd = 1;
 422         }
 423 }
 424
 425
 426 uint16_t
 427 csum16_get(struct csum_state *css)
 428 {
 429         char pad = 0;
 430
 431         csum16_update(&pad, 1, css);
 432         return ~css->val + 1;
 433 }
 434
 435
 436 void
 437 csum_init(struct csum_state *css, int size)
 438 {
 439         css->val = 0;
 440         css->tmp = 0;
 441         css->odd = 0;
 442         css->size = size;
 443 }
 444
 445
 446 void
 447 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 448 {
 449         switch (css->size) {
 450         case 1:
 451                 csum8_update(p,len,css);
 452                 break;
 453         case 2:
 454                 csum16_update(p,len,css);
 455                 break;
 456         }
 457 }
 458
 459
 460 uint16_t
 461 csum_get(struct csum_state *css)
 462 {
 463         uint16_t ret;
 464
 465         switch (css->size) {
 466         case 1:
 467                 ret = csum8_get(css);
 468                 break;
 469         case 2:
 470                 ret = csum16_get(css);
 471                 break;
 472         }
 473
 474         return ret;
 475 }
 476
 477
 478 /*
 479  * routines to write data to the output file
 480  */
 481 int
 482 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 483                 struct csum_state *css)
 484 {
 485         errno = 0;
 486
 487         fwrite(data, len, 1, outfile);
 488         if (errno) {
 489                 ERRS("unable to write output file");
 490                 return ERR_FATAL;
 491         }
 492
 493         if (css) {
 494                 csum_update(data, len, css);
 495         }
 496
 497         return 0;
 498 }
 499
 500
 501 int
 502 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 503                  struct csum_state *css)
 504 {
 505         uint8_t buf[512];
 506         size_t buflen = sizeof(buf);
 507         int err;
 508
 509         memset(buf, padc, buflen);
 510         while (len > 0) {
 511                 if (len < buflen)
 512                         buflen = len;
 513
 514                 err = write_out_data(outfile, buf, buflen, css);
 515                 if (err)
 516                         return err;
 517
 518                 len -= buflen;
 519         }
 520
 521         return 0;
 522 }
 523
 524
 525 int
 526 block_stat_file(struct csys_block *block)
 527 {
 528         struct stat st;
 529         int err;
 530
 531         if (block->file_name == NULL)
 532                 return 0;
 533
 534         err = stat(block->file_name, &st);
 535         if (err){
 536                 ERRS("stat failed on %s", block->file_name);
 537                 return ERR_FATAL;
 538         }
 539
 540         block->file_size = st.st_size;
 541         return 0;
 542 }
 543
 544
 545 int
 546 block_writeout_hdr(FILE *outfile, struct csys_block *block)
 547 {
 548         struct csys_header hdr;
 549         int res;
 550
 551         if (block->size_hdr == 0)
 552                 return 0;
 553
 554         /* setup header fields */
 555         memcpy(hdr.sig, block->sig, 4);
 556         hdr.addr = HOST_TO_LE32(block->addr);
 557         hdr.size = HOST_TO_LE32(block->size-block->size_hdr);
 558
 559         DBG(1,"writing header for block");
 560         res = write_out_data(outfile, (uint8_t *)&hdr, sizeof(hdr),NULL);
 561         return res;
 562
 563 }
 564
 565
 566 int
 567 block_writeout_file(FILE *outfile, struct csys_block *block)
 568 {
 569         char buf[FILE_BUF_LEN];
 570         size_t buflen = sizeof(buf);
 571         FILE *f;
 572         size_t len;
 573         int res;
 574
 575         if (block->file_name == NULL)
 576                 return 0;
 577
 578         if (block->file_size == 0)
 579                 return 0;
 580
 581         errno = 0;
 582         f = fopen(block->file_name,"r");
 583         if (errno) {
 584                 ERRS("unable to open file: %s", block->file_name);
 585                 return ERR_FATAL;
 586         }
 587
 588         len = block->file_size;
 589         while (len > 0) {
 590                 if (len < buflen)
 591                         buflen = len;
 592
 593                 /* read data from source file */
 594                 errno = 0;
 595                 fread(buf, buflen, 1, f);
 596                 if (errno != 0) {
 597                         ERRS("unable to read from file: %s", block->file_name);
 598                         res = ERR_FATAL;
 599                         break;
 600                 }
 601
 602                 res = write_out_data(outfile, buf, buflen, block->css);
 603                 if (res)
 604                         break;
 605
 606                 len -= buflen;
 607         }
 608
 609         fclose(f);
 610         return res;
 611 }
 612
 613
 614 int
 615 block_writeout_data(FILE *outfile, struct csys_block *block)
 616 {
 617         int res;
 618         size_t padlen;
 619
 620         res = block_writeout_file(outfile, block);
 621         if (res)
 622                 return res;
 623
 624         /* write padding data if neccesary */
 625         padlen = block->size_avail - block->file_size;
 626         DBG(1,"padding block, length=%d", padlen);
 627         res = write_out_padding(outfile, padlen, block->padc, block->css);
 628
 629         return res;
 630 }
 631
 632
 633 int
 634 block_writeout_csum(FILE *outfile, struct csys_block *block)
 635 {
 636         uint16_t csum;
 637         int res;
 638
 639         if (block->size_csum == 0)
 640                 return 0;
 641
 642         DBG(1,"writing checksum for block");
 643         csum = HOST_TO_LE16(csum_get(block->css));
 644         res = write_out_data(outfile, (uint8_t *)&csum, block->size_csum, NULL);
 645
 646         return res;
 647 }
 648
 649
 650 int
 651 block_writeout(FILE *outfile, struct csys_block *block)
 652 {
 653         int res;
 654         struct csum_state css;
 655
 656         res = 0;
 657
 658         if (block == NULL)
 659                 return res;
 660
 661         block->css = NULL;
 662
 663         DBG(2, "writing block, file=%s, file_size=%d, space=%d",
 664                 block->file_name, block->file_size, block->size_avail);
 665         res = block_writeout_hdr(outfile, block);
 666         if (res)
 667                 return res;
 668
 669         if (block->size_csum != 0) {
 670                 block->css = &css;
 671                 csum_init(&css, block->size_csum);
 672         }
 673
 674         res = block_writeout_data(outfile, block);
 675         if (res)
 676                 return res;
 677
 678         res = block_writeout_csum(outfile, block);
 679         if (res)
 680                 return res;
 681
 682         return res;
 683 }
 684
 685
 686 int
 687 write_out_blocks(FILE *outfile)
 688 {
 689         struct csys_block *block;
 690         int i, res;
 691
 692         res = block_writeout(outfile, boot_block);
 693         if (res)
 694                 return res;
 695
 696         res = block_writeout(outfile, conf_block);
 697         if (res)
 698                 return res;
 699
 700         res = block_writeout(outfile, webp_block);
 701         if (res)
 702                 return res;
 703
 704         res = block_writeout(outfile, code_block);
 705         if (res)
 706                 return res;
 707
 708         res = 0;
 709         for (i=0; i < num_blocks; i++) {
 710                 block = &blocks[i];
 711
 712                 if (block->type != BLOCK_TYPE_XTRA)
 713                         continue;
 714
 715                 res = block_writeout(outfile, block);
 716                 if (res)
 717                         break;
 718         }
 719
 720         return res;
 721 }
 722
 723
 724 struct board_info *
 725 find_board(char *model)
 726 {
 727         struct board_info *ret;
 728         struct board_info *board;
 729
 730         ret = NULL;
 731         for (board = boards; board->model != NULL; board++){
 732                 if (strcasecmp(model, board->model) == 0) {
 733                         ret = board;
 734                         break;
 735                 }
 736         };
 737
 738         return ret;
 739 }
 740
 741
 742 int
 743 parse_opt_board(char ch, char *arg)
 744 {
 745
 746         DBG(1,"parsing board option: -%c %s", ch, arg);
 747
 748         if (board != NULL) {
 749                 ERR("only one board option allowed");
 750                 return ERR_FATAL;
 751         }
 752
 753         if (required_arg(ch, arg))
 754                 return ERR_FATAL;
 755
 756         board = find_board(arg);
 757         if (board == NULL){
 758                 ERR("invalid/unknown board specified: %s", arg);
 759                 return ERR_FATAL;
 760         }
 761
 762         return 0;
 763 }
 764
 765
 766 int
 767 parse_opt_block(char ch, char *arg)
 768 {
 769         char buf[MAX_ARG_LEN];
 770         char *argv[MAX_ARG_COUNT];
 771         int argc;
 772         char *p;
 773         struct csys_block *block;
 774         int i;
 775
 776         if ( num_blocks > MAX_NUM_BLOCKS ) {
 777                 ERR("too many blocks specified");
 778                 return ERR_FATAL;
 779         }
 780
 781         block = &blocks[num_blocks];
 782
 783         /* setup default field values */
 784         block->need_file = 1;
 785         block->padc = 0xFF;
 786
 787         switch (ch) {
 788         case 'b':
 789                 if (boot_block) {
 790                         WARN("only one boot block allowed");
 791                         break;
 792                 }
 793                 block->type = BLOCK_TYPE_BOOT;
 794                 boot_block = block;
 795                 break;
 796         case 'c':
 797                 if (conf_block) {
 798                         WARN("only one config block allowed");
 799                         break;
 800                 }
 801                 block->type = BLOCK_TYPE_CONF;
 802                 conf_block = block;
 803                 break;
 804         case 'w':
 805                 if (webp_block) {
 806                         WARN("only one web block allowed");
 807                         break;
 808                 }
 809                 block->type = BLOCK_TYPE_WEBP;
 810                 block->size_hdr = sizeof(struct csys_header);
 811                 block->size_csum = 1;
 812                 block->need_file = 0;
 813                 webp_block = block;
 814                 break;
 815         case 'r':
 816                 if (code_block) {
 817                         WARN("only one runtime block allowed");
 818                         break;
 819                 }
 820                 block->type = BLOCK_TYPE_CODE;
 821                 block->size_hdr = sizeof(struct csys_header);
 822                 block->size_csum = 2;
 823                 code_block = block;
 824                 break;
 825         case 'x':
 826                 block->type = BLOCK_TYPE_XTRA;
 827                 break;
 828         default:
 829                 ERR("unknown block type \"%c\"", ch);
 830                 return ERR_FATAL;
 831         }
 832
 833         argc = parse_arg(arg, buf, argv);
 834
 835         i = 0;
 836         p = argv[i++];
 837         if (!is_empty_arg(p)) {
 838                 block->file_name = strdup(p);
 839                 if (block->file_name == NULL) {
 840                         ERR("not enough memory");
 841                         return ERR_FATAL;
 842                 }
 843         } else if (block->need_file){
 844                 ERR("no file specified in %s", arg);
 845                 return ERR_FATAL;
 846         }
 847
 848         if (block->size_hdr) {
 849                 p = argv[i++];
 850                 if (!is_empty_arg(p)) {
 851                         if (str2u32(p, &block->addr) != 0) {
 852                                 ERR("invalid start address in %s", arg);
 853                                 return ERR_FATAL;
 854                         }
 855                         block->addr_set = 1;
 856                 }
 857         }
 858
 859         p = argv[i++];
 860         if (!is_empty_arg(p)) {
 861                 if (str2u32(p, &block->size) != 0) {
 862                         ERR("invalid block size in %s", arg);
 863                         return ERR_FATAL;
 864                 }
 865                 block->size_set = 1;
 866         }
 867
 868         p = argv[i++];
 869         if (!is_empty_arg(p) && (str2u8(p, &block->padc) != 0)) {
 870                 ERR("invalid paddig character in %s", arg);
 871                 return ERR_FATAL;
 872         }
 873
 874         num_blocks++;
 875
 876         return 0;
 877 }
 878
 879
 880 int
 881 process_blocks(void)
 882 {
 883         struct csys_block *block;
 884         uint32_t size_avail;
 885         int i;
 886         int res;
 887
 888         res = 0;
 889         /* collecting stats */
 890         for (i = 0; i < num_blocks; i++) {
 891                 block = &blocks[i];
 892                 res = block_stat_file(block);
 893                 if (res)
 894                         return res;
 895         }
 896
 897         size_avail = board->flash_size;
 898
 899         /* bootloader */
 900         block = boot_block;
 901         if (block) {
 902                 if (block->size_set) {
 903                         board->boot_size= block->size;
 904                 } else {
 905                         block->size = board->boot_size;
 906                 }
 907                 if (block->size > size_avail) {
 908                         WARN("boot block is too big");
 909                         res = ERR_INVALID_IMAGE;
 910                 }
 911         }
 912         size_avail -= board->boot_size;
 913
 914         /* configuration data */
 915         block = conf_block;
 916         if (block) {
 917                 if (block->size_set) {
 918                         board->conf_size = block->size;
 919                 } else {
 920                         block->size = board->conf_size;
 921                 }
 922                 if (block->size > size_avail) {
 923                         WARN("config block is too big");
 924                         res = ERR_INVALID_IMAGE;
 925                 }
 926
 927         }
 928         size_avail -= board->conf_size;
 929
 930         /* webpages */
 931         block = webp_block;
 932         if (block) {
 933                 if (block->size_set == 0)
 934                         block->size = board->webp_size;
 935                 board->webp_size = block->size;
 936                 if (block->size > board->webp_size_max) {
 937                         WARN("webpages block is too big");
 938                         res = ERR_INVALID_IMAGE;
 939                 }
 940                 memcpy(block->sig, board->sig_webp, 4);
 941                 if (block->addr_set == 0)
 942                         block->addr = board->addr_webp;
 943         }
 944         size_avail -= board->webp_size;
 945
 946         /* runtime code */
 947         block = code_block;
 948         if (block) {
 949                 if (block->size_set == 0) {
 950                         block->size =ALIGN(block->file_size+ block->size_hdr +
 951                                 block->size_csum, 0x10000);
 952                 }
 953                 board->code_size = block->size;
 954                 if (board->code_size > size_avail) {
 955                         WARN("code block is too big");
 956                         res = ERR_INVALID_IMAGE;
 957                 }
 958                 memcpy(code_block->sig, SIG_CSYS, 4);
 959                 if (code_block->addr_set == 0)
 960                         code_block->addr = board->addr_code;
 961         }
 962         size_avail -= board->code_size;
 963
 964         for (i = 0; i < num_blocks; i++) {
 965                 block = &blocks[i];
 966
 967                 if (block->type != BLOCK_TYPE_XTRA)
 968                         continue;
 969
 970                 if (block->size_set == 0)
 971                         block->size = ALIGN(block->file_size, 0x10000);
 972
 973                 if (block->size > size_avail) {
 974                         WARN("file %s is too big, size=%d, avail=%d",
 975                                 block->file_name, block->file_size,
 976                                 size_avail);
 977                         res = ERR_INVALID_IMAGE;
 978                 }
 979
 980                 size_avail -= block->size;
 981         }
 982
 983         for (i = 0; i < num_blocks; i++) {
 984                 block = &blocks[i];
 985
 986                 block->size_avail = block->size - block->size_hdr -
 987                         block->size_csum;
 988
 989                 if (block->size_avail < block->file_size) {
 990                         WARN("file %s is too big, size=%d, avail=%d",
 991                                 block->file_name, block->file_size,
 992                                 block->size_avail);
 993                         res = ERR_INVALID_IMAGE;
 994                 }
 995         }
 996
 997         return res;
 998 }
 999
1000
1001 int
1002 main(int argc, char *argv[])
1003 {
1004         int optinvalid = 0;   /* flag for invalid option */
1005         int c;
1006         int res = ERR_FATAL;
1007
1008         FILE *outfile;
1009
1010         progname=basename(argv[0]);
1011
1012         opterr = 0;  /* could not print standard getopt error messages */
1013         while ( 1 ) {
1014                 optinvalid = 0;
1015
1016                 c = getopt(argc, argv, "b:B:c:dhkr:vw:x:");
1017                 if (c == -1)
1018                         break;
1019
1020                 switch (c) {
1021                 case 'b':
1022                 case 'c':
1023                 case 'r':
1024                 case 'x':
1025                         optinvalid = parse_opt_block(c,optarg);
1026                         break;
1027                 case 'w':
1028                         if (optarg != NULL && *optarg == '-') {
1029                                 /* rollback */
1030                                 optind--;
1031                                 optarg = NULL;
1032                         }
1033                         optinvalid = parse_opt_block(c,optarg);
1034                         break;
1035                 case 'd':
1036                         invalid_causes_error = 0;
1037                         break;
1038                 case 'k':
1039                         keep_invalid_images = 1;
1040                         break;
1041                 case 'B':
1042                         optinvalid = parse_opt_board(c,optarg);
1043                         break;
1044                 case 'v':
1045                         verblevel++;
1046                         break;
1047                 case 'h':
1048                         usage(EXIT_SUCCESS);
1049                         break;
1050                 default:
1051                         optinvalid = 1;
1052                         break;
1053                 }
1054                 if (optinvalid != 0 ){
1055                         ERR("invalid option: -%c", optopt);
1056                         goto out;
1057                 }
1058         }
1059
1060         if (board == NULL) {
1061                 ERR("no board specified");
1062                 goto out;
1063         }
1064
1065         if (optind == argc) {
1066                 ERR("no output file specified");
1067                 goto out;
1068         }
1069
1070         ofname = argv[optind++];
1071
1072         if (optind < argc) {
1073                 ERR("invalid option: %s", argv[optind]);
1074                 goto out;
1075         }
1076
1077         res = process_blocks();
1078         if (res == ERR_FATAL)
1079                 goto out;
1080
1081         if (res == ERR_INVALID_IMAGE) {
1082                 if (invalid_causes_error)
1083                         res = ERR_FATAL;
1084
1085                 if (keep_invalid_images == 0) {
1086                         WARN("generation of invalid images disabled", ofname);
1087                         goto out;
1088                 }
1089
1090                 WARN("generating invalid image", ofname);
1091         }
1092
1093         outfile = fopen(ofname, "w");
1094         if (outfile == NULL) {
1095                 ERRS("could not open \"%s\" for writing", ofname);
1096                 res = ERR_FATAL;
1097                 goto out;
1098         }
1099
1100         if (write_out_blocks(outfile) != 0) {
1101                 res = ERR_FATAL;
1102                 goto out_flush;
1103         }
1104
1105         DBG(1,"Image file %s completed.", ofname);
1106
1107 out_flush:
1108         fflush(outfile);
1109         fclose(outfile);
1110         if (res == ERR_FATAL) {
1111                 unlink(ofname);
1112         }
1113 out:
1114         if (res == ERR_FATAL)
1115                 return EXIT_FAILURE;
1116
1117         return EXIT_SUCCESS;
1118 }