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 MAX_NUM_BLOCKS  8
  56 #define MAX_ARG_COUNT   32
  57 #define MAX_ARG_LEN     1024
  58 #define FILE_BUF_LEN    (16*1024)
  59 #define CSYS_PADC       0xFF
  60
  61 #define BLOCK_TYPE_BOOT 0
  62 #define BLOCK_TYPE_CONF 1
  63 #define BLOCK_TYPE_WEBP 2
  64 #define BLOCK_TYPE_CODE 3
  65 #define BLOCK_TYPE_XTRA 4
  66
  67 #define DEFAULT_BLOCK_ALIGN     0x10000U
  68
  69 #define CSUM_SIZE_NONE  0
  70 #define CSUM_SIZE_8     1
  71 #define CSUM_SIZE_16    2
  72
  73
  74 struct csum_state{
  75         int     size;
  76         uint16_t val;
  77         uint16_t tmp;
  78         int     odd;
  79 };
  80
  81
  82 struct csys_block {
  83         int             type;   /* type of the block */
  84
  85         int             need_file;
  86         char            *file_name;     /* name of the file */
  87         uint32_t        file_size;      /* length of the file */
  88
  89         unsigned char   sig[SIG_LEN];
  90         uint32_t        addr;
  91         int             addr_set;
  92         uint32_t        align;
  93         int             align_set;
  94         uint8_t         padc;
  95
  96         uint32_t        size;
  97         uint32_t        size_hdr;
  98         uint32_t        size_csum;
  99         uint32_t        size_avail;
 100
 101         struct csum_state *css;
 102 };
 103
 104
 105 struct board_info {
 106         char *model;
 107         char *name;
 108         uint32_t flash_size;
 109
 110         char sig_boot[SIG_LEN];
 111         char sig_conf[SIG_LEN];
 112         char sig_webp[SIG_LEN];
 113
 114         uint32_t boot_size;
 115         uint32_t conf_size;
 116         uint32_t webp_size;
 117         uint32_t webp_size_max;
 118         uint32_t code_size;
 119
 120         uint32_t addr_code;
 121         uint32_t addr_webp;
 122 };
 123
 124 #define BOARD(m, n, f, sigb, sigw, bs, cs, ws, ac, aw) {\
 125         .model = m, .name = n, .flash_size = f<<20, \
 126         .sig_boot = sigb, .sig_conf = SIG_CONF, .sig_webp = sigw, \
 127         .boot_size = bs, .conf_size = cs, \
 128         .webp_size = ws, .webp_size_max = 3*0x10000, \
 129         .addr_code = ac, .addr_webp = aw \
 130         }
 131
 132 #define BOARD_ADM(m,n,f, sigw) BOARD(m,n,f, ADM_BOOT_SIG, sigw, \
 133         ADM_BOOT_SIZE, ADM_CONF_SIZE, ADM_WEBP_SIZE, \
 134         ADM_CODE_ADDR, ADM_WEBP_ADDR)
 135
 136
 137 /*
 138  * Globals
 139  */
 140 char *progname;
 141 char *ofname = NULL;
 142 int verblevel = 0;
 143 int invalid_causes_error = 1;
 144 int keep_invalid_images = 0;
 145
 146 struct board_info *board = NULL;
 147
 148 struct csys_block *boot_block = NULL;
 149 struct csys_block *conf_block = NULL;
 150 struct csys_block *webp_block = NULL;
 151 struct csys_block *code_block = NULL;
 152
 153 struct csys_block blocks[MAX_NUM_BLOCKS];
 154 int num_blocks = 0;
 155
 156 static struct board_info boards[] = {
 157         /* The original Edimax products */
 158         BOARD_ADM("BR-6104K", "Edimax BR-6104K", 2, SIG_BR6104K),
 159         BOARD_ADM("BR-6104KP", "Edimax BR-6104KP", 2, SIG_BR6104KP),
 160         BOARD_ADM("BR-6104Wg", "Edimax BR-6104Wg", 2, SIG_BR6104Wg),
 161         BOARD_ADM("BR-6114WG", "Edimax BR-6114WG", 2, SIG_BR6114WG),
 162         BOARD_ADM("BR-6524K", "Edimax BR-6524K", 2, SIG_BR6524K),
 163         BOARD_ADM("BR-6524KP", "Edimax BR-6524KP", 2, SIG_BR6524KP),
 164         BOARD_ADM("BR-6524WG", "Edimax BR-6524WG", 4, SIG_BR6524WG),
 165         BOARD_ADM("BR-6524WP", "Edimax BR-6524WP", 4, SIG_BR6524WP),
 166         BOARD_ADM("BR-6541K", "Edimax BR-6541K", 2, SIG_BR6541K),
 167         BOARD_ADM("BR-6541KP", "Edimax BR-6541K", 2, SIG_BR6541KP),
 168         BOARD_ADM("BR-6541WP", "Edimax BR-6541WP", 4, SIG_BR6541WP),
 169         BOARD_ADM("EW-7207APg", "Edimax EW-7207APg", 2, SIG_EW7207APg),
 170         BOARD_ADM("PS-1205UWg", "Edimax PS-1205UWg", 2, SIG_PS1205UWg),
 171         BOARD_ADM("PS-3205U", "Edimax PS-3205U", 2, SIG_PS3205U),
 172         BOARD_ADM("PS-3205UWg", "Edimax PS-3205UWg", 2, SIG_PS3205UWg),
 173
 174         /* Hawking products */
 175         BOARD_ADM("H2BR4", "Hawking H2BR4", 2, SIG_H2BR4),
 176         BOARD_ADM("H2WR54G", "Hawking H2WR54G", 4, SIG_H2WR54G),
 177
 178         /* Planet products */
 179         BOARD_ADM("XRT-401D", "Planet XRT-401D", 2, SIG_XRT401D),
 180         BOARD_ADM("XRT-402D", "Planet XRT-402D", 2, SIG_XRT402D),
 181
 182         {.model = NULL}
 183 };
 184
 185 /*
 186  * Message macros
 187  */
 188 #define ERR(fmt, ...) do { \
 189         fflush(0); \
 190         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ ); \
 191 } while (0)
 192
 193 #define ERRS(fmt, ...) do { \
 194         int save = errno; \
 195         fflush(0); \
 196         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ \
 197                 , strerror(save)); \
 198 } while (0)
 199
 200 #define WARN(fmt, ...) do { \
 201         fprintf(stderr, "[%s] *** warning: " fmt "\n", progname, ## __VA_ARGS__ ); \
 202 } while (0)
 203
 204 #define DBG(lev, fmt, ...) do { \
 205         if (verblevel < lev) \
 206                 break;\
 207         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 208 } while (0)
 209
 210 #define ERR_FATAL               -1
 211 #define ERR_INVALID_IMAGE       -2
 212
 213 void
 214 usage(int status)
 215 {
 216         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 217         struct board_info *board;
 218
 219         fprintf(stream, "Usage: %s [OPTIONS...] <file>\n", progname);
 220         fprintf(stream,
 221 "\n"
 222 "Options:\n"
 223 "  -B <board>      create image for the board specified with <board>.\n"
 224 "                  valid <board> values:\n"
 225         );
 226         for (board = boards; board->model != NULL; board++){
 227                 fprintf(stream,
 228 "                  %-12s: %s\n",
 229                  board->model, board->name);
 230         };
 231         fprintf(stream,
 232 "  -d              don't throw error on invalid images\n"
 233 "  -k              keep invalid images\n"
 234 "  -b <file>[:<align>[:<padc>]]\n"
 235 "                  add boot code to the image\n"
 236 "  -c <file>[:<align>[:<padc>]]\n"
 237 "                  add configuration settings to the image\n"
 238 "  -r <file>:[<addr>][:<align>[:<padc>]]\n"
 239 "                  add runtime code to the image\n"
 240 "  -w [<file>:[<addr>][:<align>[:<padc>]]]\n"
 241 "                  add webpages to the image\n"
 242 "  -x <file>[:<align>[:<padc>]]\n"
 243 "                  add extra data at the end of the image\n"
 244 "  -h              show this screen\n"
 245 "Parameters:\n"
 246 "  <file>          write output to the file <file>\n"
 247         );
 248
 249         exit(status);
 250 }
 251
 252 static inline uint32_t align(uint32_t base, uint32_t alignment)
 253 {
 254         uint32_t ret;
 255
 256         if (alignment) {
 257                 ret = (base + alignment - 1);
 258                 ret &= ~(alignment-1);
 259         } else {
 260                 ret = base;
 261         }
 262
 263         return ret;
 264 }
 265
 266 /*
 267  * argument parsing
 268  */
 269 int
 270 str2u32(char *arg, uint32_t *val)
 271 {
 272         char *err = NULL;
 273         uint32_t t;
 274
 275         errno=0;
 276         t = strtoul(arg, &err, 0);
 277         if (errno || (err==arg) || ((err != NULL) && *err)) {
 278                 return -1;
 279         }
 280
 281         *val = t;
 282         return 0;
 283 }
 284
 285
 286 int
 287 str2u16(char *arg, uint16_t *val)
 288 {
 289         char *err = NULL;
 290         uint32_t t;
 291
 292         errno=0;
 293         t = strtoul(arg, &err, 0);
 294         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 295                 return -1;
 296         }
 297
 298         *val = t & 0xFFFF;
 299         return 0;
 300 }
 301
 302 int
 303 str2u8(char *arg, uint8_t *val)
 304 {
 305         char *err = NULL;
 306         uint32_t t;
 307
 308         errno=0;
 309         t = strtoul(arg, &err, 0);
 310         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 311                 return -1;
 312         }
 313
 314         *val = t & 0xFF;
 315         return 0;
 316 }
 317
 318 int
 319 str2sig(char *arg, uint32_t *sig)
 320 {
 321         if (strlen(arg) != 4)
 322                 return -1;
 323
 324         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 325
 326         return 0;
 327 }
 328
 329
 330 int
 331 parse_arg(char *arg, char *buf, char *argv[])
 332 {
 333         int res = 0;
 334         size_t argl;
 335         char *tok;
 336         char **ap = &buf;
 337         int i;
 338
 339         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 340
 341         if ((arg == NULL)) {
 342                 /* no arguments */
 343                 return 0;
 344         }
 345
 346         argl = strlen(arg);
 347         if (argl == 0) {
 348                 /* no arguments */
 349                 return 0;
 350         }
 351
 352         if (argl >= MAX_ARG_LEN) {
 353                 /* argument is too long */
 354                 argl = MAX_ARG_LEN-1;
 355         }
 356
 357         memcpy(buf, arg, argl);
 358         buf[argl] = '\0';
 359
 360         for (i = 0; i < MAX_ARG_COUNT; i++) {
 361                 tok = strsep(ap, ":");
 362                 if (tok == NULL) {
 363                         break;
 364                 }
 365 #if 0
 366                 else if (tok[0] == '\0') {
 367                         break;
 368                 }
 369 #endif
 370                 argv[i] = tok;
 371                 res++;
 372         }
 373
 374         return res;
 375 }
 376
 377
 378 int
 379 required_arg(char c, char *arg)
 380 {
 381         if (arg == NULL || *arg != '-')
 382                 return 0;
 383
 384         ERR("option -%c requires an argument\n", c);
 385         return ERR_FATAL;
 386 }
 387
 388
 389 int
 390 is_empty_arg(char *arg)
 391 {
 392         int ret = 1;
 393         if (arg != NULL) {
 394                 if (*arg) ret = 0;
 395         };
 396         return ret;
 397 }
 398
 399
 400 void
 401 csum8_update(uint8_t *p, uint32_t len, struct csum_state *css)
 402 {
 403         for ( ; len > 0; len --) {
 404                 css->val += *p++;
 405         }
 406 }
 407
 408
 409 uint16_t
 410 csum8_get(struct csum_state *css)
 411 {
 412         uint8_t t;
 413
 414         t = css->val;
 415         return ~t + 1;
 416 }
 417
 418
 419 void
 420 csum16_update(uint8_t *p, uint32_t len, struct csum_state *css)
 421 {
 422         uint16_t t;
 423
 424         if (css->odd) {
 425                 t = css->tmp + (p[0]<<8);
 426                 css->val += LE16_TO_HOST(t);
 427                 css->odd = 0;
 428                 len--;
 429                 p++;
 430         }
 431
 432         for ( ; len > 1; len -= 2, p +=2 ) {
 433                 t = p[0] + (p[1] << 8);
 434                 css->val += LE16_TO_HOST(t);
 435         }
 436
 437         if (len == 1) {
 438                 css->tmp = p[0];
 439                 css->odd = 1;
 440         }
 441 }
 442
 443
 444 uint16_t
 445 csum16_get(struct csum_state *css)
 446 {
 447         char pad = 0;
 448
 449         csum16_update(&pad, 1, css);
 450         return ~css->val + 1;
 451 }
 452
 453
 454 void
 455 csum_init(struct csum_state *css, int size)
 456 {
 457         css->val = 0;
 458         css->tmp = 0;
 459         css->odd = 0;
 460         css->size = size;
 461 }
 462
 463
 464 void
 465 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 466 {
 467         switch (css->size) {
 468         case CSUM_SIZE_8:
 469                 csum8_update(p,len,css);
 470                 break;
 471         case CSUM_SIZE_16:
 472                 csum16_update(p,len,css);
 473                 break;
 474         }
 475 }
 476
 477
 478 uint16_t
 479 csum_get(struct csum_state *css)
 480 {
 481         uint16_t ret;
 482
 483         switch (css->size) {
 484         case CSUM_SIZE_8:
 485                 ret = csum8_get(css);
 486                 break;
 487         case CSUM_SIZE_16:
 488                 ret = csum16_get(css);
 489                 break;
 490         }
 491
 492         return ret;
 493 }
 494
 495
 496 /*
 497  * routines to write data to the output file
 498  */
 499 int
 500 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 501                 struct csum_state *css)
 502 {
 503         errno = 0;
 504
 505         fwrite(data, len, 1, outfile);
 506         if (errno) {
 507                 ERRS("unable to write output file");
 508                 return ERR_FATAL;
 509         }
 510
 511         if (css) {
 512                 csum_update(data, len, css);
 513         }
 514
 515         return 0;
 516 }
 517
 518
 519 int
 520 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 521                  struct csum_state *css)
 522 {
 523         uint8_t buf[512];
 524         size_t buflen = sizeof(buf);
 525         int err;
 526
 527         memset(buf, padc, buflen);
 528         while (len > 0) {
 529                 if (len < buflen)
 530                         buflen = len;
 531
 532                 err = write_out_data(outfile, buf, buflen, css);
 533                 if (err)
 534                         return err;
 535
 536                 len -= buflen;
 537         }
 538
 539         return 0;
 540 }
 541
 542
 543 int
 544 block_stat_file(struct csys_block *block)
 545 {
 546         struct stat st;
 547         int err;
 548
 549         if (block->file_name == NULL)
 550                 return 0;
 551
 552         err = stat(block->file_name, &st);
 553         if (err){
 554                 ERRS("stat failed on %s", block->file_name);
 555                 return ERR_FATAL;
 556         }
 557
 558         block->file_size = st.st_size;
 559         return 0;
 560 }
 561
 562
 563 int
 564 block_writeout_hdr(FILE *outfile, struct csys_block *block)
 565 {
 566         struct csys_header hdr;
 567         int res;
 568
 569         if (block->size_hdr == 0)
 570                 return 0;
 571
 572         /* setup header fields */
 573         memcpy(hdr.sig, block->sig, 4);
 574         hdr.addr = HOST_TO_LE32(block->addr);
 575         hdr.size = HOST_TO_LE32(block->align-block->size_hdr);
 576
 577         DBG(1,"writing header for block");
 578         res = write_out_data(outfile, (uint8_t *)&hdr, sizeof(hdr),NULL);
 579         return res;
 580
 581 }
 582
 583
 584 int
 585 block_writeout_file(FILE *outfile, struct csys_block *block)
 586 {
 587         char buf[FILE_BUF_LEN];
 588         size_t buflen = sizeof(buf);
 589         FILE *f;
 590         size_t len;
 591         int res;
 592
 593         if (block->file_name == NULL)
 594                 return 0;
 595
 596         if (block->file_size == 0)
 597                 return 0;
 598
 599         errno = 0;
 600         f = fopen(block->file_name,"r");
 601         if (errno) {
 602                 ERRS("unable to open file: %s", block->file_name);
 603                 return ERR_FATAL;
 604         }
 605
 606         len = block->file_size;
 607         while (len > 0) {
 608                 if (len < buflen)
 609                         buflen = len;
 610
 611                 /* read data from source file */
 612                 errno = 0;
 613                 fread(buf, buflen, 1, f);
 614                 if (errno != 0) {
 615                         ERRS("unable to read from file: %s", block->file_name);
 616                         res = ERR_FATAL;
 617                         break;
 618                 }
 619
 620                 res = write_out_data(outfile, buf, buflen, block->css);
 621                 if (res)
 622                         break;
 623
 624                 len -= buflen;
 625         }
 626
 627         fclose(f);
 628         return res;
 629 }
 630
 631
 632 int
 633 block_writeout_data(FILE *outfile, struct csys_block *block)
 634 {
 635         int res;
 636         size_t padlen;
 637
 638         res = block_writeout_file(outfile, block);
 639         if (res)
 640                 return res;
 641
 642         /* write padding data if neccesary */
 643         padlen = block->size_avail - block->file_size;
 644         DBG(1,"padding block, length=%d", padlen);
 645         res = write_out_padding(outfile, padlen, block->padc, block->css);
 646
 647         return res;
 648 }
 649
 650
 651 int
 652 block_writeout_csum(FILE *outfile, struct csys_block *block)
 653 {
 654         uint16_t csum;
 655         int res;
 656
 657         if (block->size_csum == 0)
 658                 return 0;
 659
 660         DBG(1,"writing checksum for block");
 661         csum = HOST_TO_LE16(csum_get(block->css));
 662         res = write_out_data(outfile, (uint8_t *)&csum, block->size_csum, NULL);
 663
 664         return res;
 665 }
 666
 667
 668 int
 669 block_writeout(FILE *outfile, struct csys_block *block)
 670 {
 671         int res;
 672         struct csum_state css;
 673
 674         res = 0;
 675
 676         if (block == NULL)
 677                 return res;
 678
 679         block->css = NULL;
 680
 681         DBG(2, "writing block, file=%s, file_size=%d, space=%d",
 682                 block->file_name, block->file_size, block->size_avail);
 683         res = block_writeout_hdr(outfile, block);
 684         if (res)
 685                 return res;
 686
 687         if (block->size_csum != 0) {
 688                 block->css = &css;
 689                 csum_init(&css, block->size_csum);
 690         }
 691
 692         res = block_writeout_data(outfile, block);
 693         if (res)
 694                 return res;
 695
 696         res = block_writeout_csum(outfile, block);
 697         if (res)
 698                 return res;
 699
 700         return res;
 701 }
 702
 703
 704 int
 705 write_out_blocks(FILE *outfile)
 706 {
 707         struct csys_block *block;
 708         int i, res;
 709
 710         res = block_writeout(outfile, boot_block);
 711         if (res)
 712                 return res;
 713
 714         res = block_writeout(outfile, conf_block);
 715         if (res)
 716                 return res;
 717
 718         res = block_writeout(outfile, webp_block);
 719         if (res)
 720                 return res;
 721
 722         res = block_writeout(outfile, code_block);
 723         if (res)
 724                 return res;
 725
 726         res = 0;
 727         for (i=0; i < num_blocks; i++) {
 728                 block = &blocks[i];
 729
 730                 if (block->type != BLOCK_TYPE_XTRA)
 731                         continue;
 732
 733                 res = block_writeout(outfile, block);
 734                 if (res)
 735                         break;
 736         }
 737
 738         return res;
 739 }
 740
 741
 742 struct board_info *
 743 find_board(char *model)
 744 {
 745         struct board_info *ret;
 746         struct board_info *board;
 747
 748         ret = NULL;
 749         for (board = boards; board->model != NULL; board++){
 750                 if (strcasecmp(model, board->model) == 0) {
 751                         ret = board;
 752                         break;
 753                 }
 754         };
 755
 756         return ret;
 757 }
 758
 759
 760 int
 761 parse_opt_board(char ch, char *arg)
 762 {
 763
 764         DBG(1,"parsing board option: -%c %s", ch, arg);
 765
 766         if (board != NULL) {
 767                 ERR("only one board option allowed");
 768                 return ERR_FATAL;
 769         }
 770
 771         if (required_arg(ch, arg))
 772                 return ERR_FATAL;
 773
 774         board = find_board(arg);
 775         if (board == NULL){
 776                 ERR("invalid/unknown board specified: %s", arg);
 777                 return ERR_FATAL;
 778         }
 779
 780         return 0;
 781 }
 782
 783
 784 int
 785 parse_opt_block(char ch, char *arg)
 786 {
 787         char buf[MAX_ARG_LEN];
 788         char *argv[MAX_ARG_COUNT];
 789         int argc;
 790         char *p;
 791         struct csys_block *block;
 792         int i;
 793
 794         if ( num_blocks > MAX_NUM_BLOCKS ) {
 795                 ERR("too many blocks specified");
 796                 return ERR_FATAL;
 797         }
 798
 799         block = &blocks[num_blocks];
 800
 801         /* setup default field values */
 802         block->need_file = 1;
 803         block->padc = 0xFF;
 804
 805         switch (ch) {
 806         case 'b':
 807                 if (boot_block) {
 808                         WARN("only one boot block allowed");
 809                         break;
 810                 }
 811                 block->type = BLOCK_TYPE_BOOT;
 812                 boot_block = block;
 813                 break;
 814         case 'c':
 815                 if (conf_block) {
 816                         WARN("only one config block allowed");
 817                         break;
 818                 }
 819                 block->type = BLOCK_TYPE_CONF;
 820                 conf_block = block;
 821                 break;
 822         case 'w':
 823                 if (webp_block) {
 824                         WARN("only one web block allowed");
 825                         break;
 826                 }
 827                 block->type = BLOCK_TYPE_WEBP;
 828                 block->size_hdr = sizeof(struct csys_header);
 829                 block->size_csum = CSUM_SIZE_8;
 830                 block->need_file = 0;
 831                 webp_block = block;
 832                 break;
 833         case 'r':
 834                 if (code_block) {
 835                         WARN("only one runtime block allowed");
 836                         break;
 837                 }
 838                 block->type = BLOCK_TYPE_CODE;
 839                 block->size_hdr = sizeof(struct csys_header);
 840                 block->size_csum = CSUM_SIZE_16;
 841                 code_block = block;
 842                 break;
 843         case 'x':
 844                 block->type = BLOCK_TYPE_XTRA;
 845                 break;
 846         default:
 847                 ERR("unknown block type \"%c\"", ch);
 848                 return ERR_FATAL;
 849         }
 850
 851         argc = parse_arg(arg, buf, argv);
 852
 853         i = 0;
 854         p = argv[i++];
 855         if (!is_empty_arg(p)) {
 856                 block->file_name = strdup(p);
 857                 if (block->file_name == NULL) {
 858                         ERR("not enough memory");
 859                         return ERR_FATAL;
 860                 }
 861         } else if (block->need_file){
 862                 ERR("no file specified in %s", arg);
 863                 return ERR_FATAL;
 864         }
 865
 866         if (block->size_hdr) {
 867                 p = argv[i++];
 868                 if (!is_empty_arg(p)) {
 869                         if (str2u32(p, &block->addr) != 0) {
 870                                 ERR("invalid start address in %s", arg);
 871                                 return ERR_FATAL;
 872                         }
 873                         block->addr_set = 1;
 874                 }
 875         }
 876
 877         p = argv[i++];
 878         if (!is_empty_arg(p)) {
 879                 if (str2u32(p, &block->align) != 0) {
 880                         ERR("invalid alignment value in %s", arg);
 881                         return ERR_FATAL;
 882                 }
 883                 block->align_set = 1;
 884         }
 885
 886         p = argv[i++];
 887         if (!is_empty_arg(p) && (str2u8(p, &block->padc) != 0)) {
 888                 ERR("invalid paddig character in %s", arg);
 889                 return ERR_FATAL;
 890         }
 891
 892         num_blocks++;
 893
 894         return 0;
 895 }
 896
 897
 898 int
 899 process_blocks(void)
 900 {
 901         struct csys_block *block;
 902         uint32_t offs = 0;
 903         int i;
 904         int res;
 905
 906         res = 0;
 907         /* collecting stats */
 908         for (i = 0; i < num_blocks; i++) {
 909                 block = &blocks[i];
 910                 res = block_stat_file(block);
 911                 if (res)
 912                         return res;
 913         }
 914
 915         /* bootloader */
 916         block = boot_block;
 917         if (block) {
 918                 block->size = board->boot_size;
 919                 if (block->file_size > board->boot_size) {
 920                         WARN("boot block is too big");
 921                         res = ERR_INVALID_IMAGE;
 922                 }
 923         }
 924         offs += board->boot_size;
 925
 926         /* configuration data */
 927         block = conf_block;
 928         if (block) {
 929                 block->size = board->conf_size;
 930                 if (block->file_size > board->conf_size) {
 931                         WARN("config block is too big");
 932                         res = ERR_INVALID_IMAGE;
 933                 }
 934         }
 935         offs += board->conf_size;
 936
 937         /* webpages */
 938         block = webp_block;
 939         if (block) {
 940
 941                 memcpy(block->sig, board->sig_webp, 4);
 942
 943                 if (block->addr_set == 0)
 944                         block->addr = board->addr_webp;
 945
 946                 if (block->align_set == 0)
 947                         block->align = DEFAULT_BLOCK_ALIGN;
 948
 949                 block->size = align(offs + block->file_size + block->size_hdr +
 950                                 block->size_csum, block->align) - offs;
 951
 952                 if (block->size > board->webp_size_max) {
 953                         WARN("webpages block is too big");
 954                         res = ERR_INVALID_IMAGE;
 955                 }
 956
 957                 DBG(2,"webpages start at %08x, size=%08x", offs,
 958                                 block->size);
 959
 960                 offs += block->size;
 961                 if (offs > board->flash_size) {
 962                         WARN("webp block is too big");
 963                         res = ERR_INVALID_IMAGE;
 964                 }
 965         }
 966
 967         /* runtime code */
 968         block = code_block;
 969         if (block) {
 970                 memcpy(code_block->sig, SIG_CSYS, 4);
 971
 972                 if (block->addr_set == 0)
 973                         block->addr = board->addr_code;
 974
 975                 if (block->align_set == 0)
 976                         block->align = DEFAULT_BLOCK_ALIGN;
 977
 978                 block->size = align(offs + block->file_size +
 979                                 block->size_hdr + block->size_csum,
 980                                 block->align) - offs;
 981
 982                 DBG(2,"code block start at %08x, size=%08x", offs,
 983                                 block->size);
 984
 985                 offs += block->size;
 986                 if (offs > board->flash_size) {
 987                         WARN("code block is too big");
 988                         res = ERR_INVALID_IMAGE;
 989                 }
 990         }
 991
 992         for (i = 0; i < num_blocks; i++) {
 993                 block = &blocks[i];
 994
 995                 if (block->type != BLOCK_TYPE_XTRA)
 996                         continue;
 997
 998                 if (block->align_set == 0)
 999                         block->align = DEFAULT_BLOCK_ALIGN;
1000
1001                 block->size = align(offs + block->file_size,
1002                                 block->align) - offs;
1003
1004                 DBG(2,"file %s start at %08x, size=%08x, align=%08x",
1005                         block->file_name, offs, block->size, block->align);
1006
1007                 offs += block->size;
1008                 if (offs > board->flash_size) {
1009                         WARN("file %s is too big, size=%d, avail=%d",
1010                                 block->file_name, block->file_size,
1011                                 board->flash_size - offs);
1012                         res = ERR_INVALID_IMAGE;
1013                 }
1014         }
1015
1016         for (i = 0; i < num_blocks; i++) {
1017                 block = &blocks[i];
1018
1019                 block->size_avail = block->size - block->size_hdr -
1020                         block->size_csum;
1021
1022                 if (block->size_avail < block->file_size) {
1023                         WARN("file %s is too big, size=%d, avail=%d",
1024                                 block->file_name, block->file_size,
1025                                 block->size_avail);
1026                         res = ERR_INVALID_IMAGE;
1027                 }
1028         }
1029
1030         return res;
1031 }
1032
1033
1034 int
1035 main(int argc, char *argv[])
1036 {
1037         int optinvalid = 0;   /* flag for invalid option */
1038         int c;
1039         int res = ERR_FATAL;
1040
1041         FILE *outfile;
1042
1043         progname=basename(argv[0]);
1044
1045         opterr = 0;  /* could not print standard getopt error messages */
1046         while ( 1 ) {
1047                 optinvalid = 0;
1048
1049                 c = getopt(argc, argv, "b:B:c:dhkr:vw:x:");
1050                 if (c == -1)
1051                         break;
1052
1053                 switch (c) {
1054                 case 'b':
1055                 case 'c':
1056                 case 'r':
1057                 case 'x':
1058                         optinvalid = parse_opt_block(c,optarg);
1059                         break;
1060                 case 'w':
1061                         if (optarg != NULL && *optarg == '-') {
1062                                 /* rollback */
1063                                 optind--;
1064                                 optarg = NULL;
1065                         }
1066                         optinvalid = parse_opt_block(c,optarg);
1067                         break;
1068                 case 'd':
1069                         invalid_causes_error = 0;
1070                         break;
1071                 case 'k':
1072                         keep_invalid_images = 1;
1073                         break;
1074                 case 'B':
1075                         optinvalid = parse_opt_board(c,optarg);
1076                         break;
1077                 case 'v':
1078                         verblevel++;
1079                         break;
1080                 case 'h':
1081                         usage(EXIT_SUCCESS);
1082                         break;
1083                 default:
1084                         optinvalid = 1;
1085                         break;
1086                 }
1087                 if (optinvalid != 0 ){
1088                         ERR("invalid option: -%c", optopt);
1089                         goto out;
1090                 }
1091         }
1092
1093         if (board == NULL) {
1094                 ERR("no board specified");
1095                 goto out;
1096         }
1097
1098         if (optind == argc) {
1099                 ERR("no output file specified");
1100                 goto out;
1101         }
1102
1103         ofname = argv[optind++];
1104
1105         if (optind < argc) {
1106                 ERR("invalid option: %s", argv[optind]);
1107                 goto out;
1108         }
1109
1110         res = process_blocks();
1111         if (res == ERR_FATAL)
1112                 goto out;
1113
1114         if (res == ERR_INVALID_IMAGE) {
1115                 if (invalid_causes_error)
1116                         res = ERR_FATAL;
1117
1118                 if (keep_invalid_images == 0) {
1119                         WARN("generation of invalid images disabled", ofname);
1120                         goto out;
1121                 }
1122
1123                 WARN("generating invalid image", ofname);
1124         }
1125
1126         outfile = fopen(ofname, "w");
1127         if (outfile == NULL) {
1128                 ERRS("could not open \"%s\" for writing", ofname);
1129                 res = ERR_FATAL;
1130                 goto out;
1131         }
1132
1133         if (write_out_blocks(outfile) != 0) {
1134                 res = ERR_FATAL;
1135                 goto out_flush;
1136         }
1137
1138         DBG(1,"Image file %s completed.", ofname);
1139
1140 out_flush:
1141         fflush(outfile);
1142         fclose(outfile);
1143         if (res == ERR_FATAL) {
1144                 unlink(ofname);
1145         }
1146 out:
1147         if (res == ERR_FATAL)
1148                 return EXIT_FAILURE;
1149
1150         return EXIT_SUCCESS;
1151 }