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