tools/firmware-utils/src/mkcsysimg.c

   1 /*
   2  *
   3  *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
   4  *
   5  *  This program was based on the code found in various Linux
   6  *  source tarballs released by Edimax for it's devices.
   7  *  Original author: David Hsu <davidhsu@realtek.com.tw>
   8  *
   9  *  This program is free software; you can redistribute it and/or
  10  *  modify it under the terms of the GNU General Public License
  11  *  as published by the Free Software Foundation; either version 2
  12  *  of the License, or (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the
  21  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  *  Boston, MA  02110-1301, USA.
  23  */
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <stdint.h>
  28 #include <string.h>
  29 #include <unistd.h>     /* for unlink() */
  30 #include <libgen.h>
  31 #include <getopt.h>     /* for getopt() */
  32 #include <stdarg.h>
  33 #include <errno.h>
  34 #include <sys/stat.h>
  35 #include <endian.h>     /* for __BYTE_ORDER */
  36 #if defined(__CYGWIN__)
  37 #  include <byteswap.h>
  38 #endif
  39
  40 #include "csysimg.h"
  41
  42 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  43 #  define HOST_TO_LE16(x)       (x)
  44 #  define HOST_TO_LE32(x)       (x)
  45 #  define LE16_TO_HOST(x)       (x)
  46 #  define LE32_TO_HOST(x)       (x)
  47 #else
  48 #  define HOST_TO_LE16(x)       bswap_16(x)
  49 #  define HOST_TO_LE32(x)       bswap_32(x)
  50 #  define LE16_TO_HOST(x)       bswap_16(x)
  51 #  define LE32_TO_HOST(x)       bswap_32(x)
  52 #endif
  53
  54 #define MAX_NUM_BLOCKS  8
  55 #define MAX_ARG_COUNT   32
  56 #define MAX_ARG_LEN     1024
  57 #define FILE_BUF_LEN    (16*1024)
  58 #define CSYS_PADC       0xFF
  59
  60 #define BLOCK_TYPE_BOOT 0
  61 #define BLOCK_TYPE_CONF 1
  62 #define BLOCK_TYPE_WEBP 2
  63 #define BLOCK_TYPE_CODE 3
  64 #define BLOCK_TYPE_XTRA 4
  65
  66 #define DEFAULT_BLOCK_ALIGN     0x10000U
  67
  68 #define CSUM_SIZE_NONE  0
  69 #define CSUM_SIZE_8     1
  70 #define CSUM_SIZE_16    2
  71
  72
  73 struct csum_state{
  74         int     size;
  75         uint16_t val;
  76         uint16_t tmp;
  77         int     odd;
  78 };
  79
  80
  81 struct csys_block {
  82         int             type;   /* type of the block */
  83
  84         int             need_file;
  85         char            *file_name;     /* name of the file */
  86         uint32_t        file_size;      /* length of the file */
  87
  88         unsigned char   sig[SIG_LEN];
  89         uint32_t        addr;
  90         int             addr_set;
  91         uint32_t        align;
  92         int             align_set;
  93         uint8_t         padc;
  94
  95         uint32_t        size;
  96         uint32_t        size_hdr;
  97         uint32_t        size_csum;
  98         uint32_t        size_avail;
  99
 100         struct csum_state *css;
 101 };
 102
 103
 104 struct board_info {
 105         char *model;
 106         char *name;
 107         uint32_t flash_size;
 108
 109         char sig_boot[SIG_LEN];
 110         char sig_conf[SIG_LEN];
 111         char sig_webp[SIG_LEN];
 112
 113         uint32_t boot_size;
 114         uint32_t conf_size;
 115         uint32_t webp_size;
 116         uint32_t webp_size_max;
 117         uint32_t code_size;
 118
 119         uint32_t addr_code;
 120         uint32_t addr_webp;
 121 };
 122
 123 #define BOARD(m, n, f, sigb, sigw, bs, cs, ws, ac, aw) {\
 124         .model = m, .name = n, .flash_size = f<<20, \
 125         .sig_boot = sigb, .sig_conf = SIG_CONF, .sig_webp = sigw, \
 126         .boot_size = bs, .conf_size = cs, \
 127         .webp_size = ws, .webp_size_max = 3*0x10000, \
 128         .addr_code = ac, .addr_webp = aw \
 129         }
 130
 131 #define BOARD_ADM(m,n,f, sigw) BOARD(m,n,f, ADM_BOOT_SIG, sigw, \
 132         ADM_BOOT_SIZE, ADM_CONF_SIZE, ADM_WEBP_SIZE, \
 133         ADM_CODE_ADDR, ADM_WEBP_ADDR)
 134
 135
 136 /*
 137  * Globals
 138  */
 139 char *progname;
 140 char *ofname = NULL;
 141 int verblevel = 0;
 142 int invalid_causes_error = 1;
 143 int keep_invalid_images = 0;
 144
 145 struct board_info *board = NULL;
 146
 147 struct csys_block *boot_block = NULL;
 148 struct csys_block *conf_block = NULL;
 149 struct csys_block *webp_block = NULL;
 150 struct csys_block *code_block = NULL;
 151
 152 struct csys_block blocks[MAX_NUM_BLOCKS];
 153 int num_blocks = 0;
 154
 155 static struct board_info boards[] = {
 156         /* The original Edimax products */
 157         BOARD_ADM("BR-6104K", "Edimax BR-6104K", 2, SIG_BR6104K),
 158         BOARD_ADM("BR-6104KP", "Edimax BR-6104KP", 2, SIG_BR6104KP),
 159         BOARD_ADM("BR-6104Wg", "Edimax BR-6104Wg", 2, SIG_BR6104Wg),
 160         BOARD_ADM("BR-6114WG", "Edimax BR-6114WG", 2, SIG_BR6114WG),
 161         BOARD_ADM("BR-6524K", "Edimax BR-6524K", 2, SIG_BR6524K),
 162         BOARD_ADM("BR-6524KP", "Edimax BR-6524KP", 2, SIG_BR6524KP),
 163         BOARD_ADM("BR-6524WG", "Edimax BR-6524WG", 4, SIG_BR6524WG),
 164         BOARD_ADM("BR-6524WP", "Edimax BR-6524WP", 4, SIG_BR6524WP),
 165         BOARD_ADM("BR-6541K", "Edimax BR-6541K", 2, SIG_BR6541K),
 166         BOARD_ADM("BR-6541KP", "Edimax BR-6541K", 2, SIG_BR6541KP),
 167         BOARD_ADM("BR-6541WP", "Edimax BR-6541WP", 4, SIG_BR6541WP),
 168         BOARD_ADM("EW-7207APg", "Edimax EW-7207APg", 2, SIG_EW7207APg),
 169         BOARD_ADM("PS-1205UWg", "Edimax PS-1205UWg", 2, SIG_PS1205UWg),
 170         BOARD_ADM("PS-3205U", "Edimax PS-3205U", 2, SIG_PS3205U),
 171         BOARD_ADM("PS-3205UWg", "Edimax PS-3205UWg", 2, SIG_PS3205UWg),
 172
 173         /* Hawking products */
 174         BOARD_ADM("H2BR4", "Hawking H2BR4", 2, SIG_H2BR4),
 175         BOARD_ADM("H2WR54G", "Hawking H2WR54G", 4, SIG_H2WR54G),
 176
 177         /* Planet products */
 178         BOARD_ADM("XRT-401D", "Planet XRT-401D", 2, SIG_XRT401D),
 179         BOARD_ADM("XRT-402D", "Planet XRT-402D", 2, SIG_XRT402D),
 180
 181         /* Conceptronic products */
 182         BOARD_ADM("C54BSR4", "Conceptronic C54BSR4", 2, SIG_C54BSR4),
 183
 184         {.model = NULL}
 185 };
 186
 187 /*
 188  * Message macros
 189  */
 190 #define ERR(fmt, ...) do { \
 191         fflush(0); \
 192         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ ); \
 193 } while (0)
 194
 195 #define ERRS(fmt, ...) do { \
 196         int save = errno; \
 197         fflush(0); \
 198         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ \
 199                 , strerror(save)); \
 200 } while (0)
 201
 202 #define WARN(fmt, ...) do { \
 203         fprintf(stderr, "[%s] *** warning: " fmt "\n", progname, ## __VA_ARGS__ ); \
 204 } while (0)
 205
 206 #define DBG(lev, fmt, ...) do { \
 207         if (verblevel < lev) \
 208                 break;\
 209         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 210 } while (0)
 211
 212 #define ERR_FATAL               -1
 213 #define ERR_INVALID_IMAGE       -2
 214
 215 void
 216 usage(int status)
 217 {
 218         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 219         struct board_info *board;
 220
 221         fprintf(stream, "Usage: %s [OPTIONS...] <file>\n", progname);
 222         fprintf(stream,
 223 "\n"
 224 "Options:\n"
 225 "  -B <board>      create image for the board specified with <board>.\n"
 226 "                  valid <board> values:\n"
 227         );
 228         for (board = boards; board->model != NULL; board++){
 229                 fprintf(stream,
 230 "                  %-12s: %s\n",
 231                  board->model, board->name);
 232         };
 233         fprintf(stream,
 234 "  -d              don't throw error on invalid images\n"
 235 "  -k              keep invalid images\n"
 236 "  -b <file>[:<align>[:<padc>]]\n"
 237 "                  add boot code to the image\n"
 238 "  -c <file>[:<align>[:<padc>]]\n"
 239 "                  add configuration settings to the image\n"
 240 "  -r <file>:[<addr>][:<align>[:<padc>]]\n"
 241 "                  add runtime code to the image\n"
 242 "  -w [<file>:[<addr>][:<align>[:<padc>]]]\n"
 243 "                  add webpages to the image\n"
 244 "  -x <file>[:<align>[:<padc>]]\n"
 245 "                  add extra data at the end of the image\n"
 246 "  -h              show this screen\n"
 247 "Parameters:\n"
 248 "  <file>          write output to the file <file>\n"
 249         );
 250
 251         exit(status);
 252 }
 253
 254 static inline uint32_t align(uint32_t base, uint32_t alignment)
 255 {
 256         uint32_t ret;
 257
 258         if (alignment) {
 259                 ret = (base + alignment - 1);
 260                 ret &= ~(alignment-1);
 261         } else {
 262                 ret = base;
 263         }
 264
 265         return ret;
 266 }
 267
 268 /*
 269  * argument parsing
 270  */
 271 int
 272 str2u32(char *arg, uint32_t *val)
 273 {
 274         char *err = NULL;
 275         uint32_t t;
 276
 277         errno=0;
 278         t = strtoul(arg, &err, 0);
 279         if (errno || (err==arg) || ((err != NULL) && *err)) {
 280                 return -1;
 281         }
 282
 283         *val = t;
 284         return 0;
 285 }
 286
 287
 288 int
 289 str2u16(char *arg, uint16_t *val)
 290 {
 291         char *err = NULL;
 292         uint32_t t;
 293
 294         errno=0;
 295         t = strtoul(arg, &err, 0);
 296         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 297                 return -1;
 298         }
 299
 300         *val = t & 0xFFFF;
 301         return 0;
 302 }
 303
 304 int
 305 str2u8(char *arg, uint8_t *val)
 306 {
 307         char *err = NULL;
 308         uint32_t t;
 309
 310         errno=0;
 311         t = strtoul(arg, &err, 0);
 312         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 313                 return -1;
 314         }
 315
 316         *val = t & 0xFF;
 317         return 0;
 318 }
 319
 320 int
 321 str2sig(char *arg, uint32_t *sig)
 322 {
 323         if (strlen(arg) != 4)
 324                 return -1;
 325
 326         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 327
 328         return 0;
 329 }
 330
 331
 332 int
 333 parse_arg(char *arg, char *buf, char *argv[])
 334 {
 335         int res = 0;
 336         size_t argl;
 337         char *tok;
 338         char **ap = &buf;
 339         int i;
 340
 341         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 342
 343         if ((arg == NULL)) {
 344                 /* no arguments */
 345                 return 0;
 346         }
 347
 348         argl = strlen(arg);
 349         if (argl == 0) {
 350                 /* no arguments */
 351                 return 0;
 352         }
 353
 354         if (argl >= MAX_ARG_LEN) {
 355                 /* argument is too long */
 356                 argl = MAX_ARG_LEN-1;
 357         }
 358
 359         memcpy(buf, arg, argl);
 360         buf[argl] = '\0';
 361
 362         for (i = 0; i < MAX_ARG_COUNT; i++) {
 363                 tok = strsep(ap, ":");
 364                 if (tok == NULL) {
 365                         break;
 366                 }
 367 #if 0
 368                 else if (tok[0] == '\0') {
 369                         break;
 370                 }
 371 #endif
 372                 argv[i] = tok;
 373                 res++;
 374         }
 375
 376         return res;
 377 }
 378
 379
 380 int
 381 required_arg(char c, char *arg)
 382 {
 383         if (arg == NULL || *arg != '-')
 384                 return 0;
 385
 386         ERR("option -%c requires an argument\n", c);
 387         return ERR_FATAL;
 388 }
 389
 390
 391 int
 392 is_empty_arg(char *arg)
 393 {
 394         int ret = 1;
 395         if (arg != NULL) {
 396                 if (*arg) ret = 0;
 397         };
 398         return ret;
 399 }
 400
 401
 402 void
 403 csum8_update(uint8_t *p, uint32_t len, struct csum_state *css)
 404 {
 405         for ( ; len > 0; len --) {
 406                 css->val += *p++;
 407         }
 408 }
 409
 410
 411 uint16_t
 412 csum8_get(struct csum_state *css)
 413 {
 414         uint8_t t;
 415
 416         t = css->val;
 417         return ~t + 1;
 418 }
 419
 420
 421 void
 422 csum16_update(uint8_t *p, uint32_t len, struct csum_state *css)
 423 {
 424         uint16_t t;
 425
 426         if (css->odd) {
 427                 t = css->tmp + (p[0]<<8);
 428                 css->val += LE16_TO_HOST(t);
 429                 css->odd = 0;
 430                 len--;
 431                 p++;
 432         }
 433
 434         for ( ; len > 1; len -= 2, p +=2 ) {
 435                 t = p[0] + (p[1] << 8);
 436                 css->val += LE16_TO_HOST(t);
 437         }
 438
 439         if (len == 1) {
 440                 css->tmp = p[0];
 441                 css->odd = 1;
 442         }
 443 }
 444
 445
 446 uint16_t
 447 csum16_get(struct csum_state *css)
 448 {
 449         char pad = 0;
 450
 451         csum16_update(&pad, 1, css);
 452         return ~css->val + 1;
 453 }
 454
 455
 456 void
 457 csum_init(struct csum_state *css, int size)
 458 {
 459         css->val = 0;
 460         css->tmp = 0;
 461         css->odd = 0;
 462         css->size = size;
 463 }
 464
 465
 466 void
 467 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 468 {
 469         switch (css->size) {
 470         case CSUM_SIZE_8:
 471                 csum8_update(p,len,css);
 472                 break;
 473         case CSUM_SIZE_16:
 474                 csum16_update(p,len,css);
 475                 break;
 476         }
 477 }
 478
 479
 480 uint16_t
 481 csum_get(struct csum_state *css)
 482 {
 483         uint16_t ret;
 484
 485         switch (css->size) {
 486         case CSUM_SIZE_8:
 487                 ret = csum8_get(css);
 488                 break;
 489         case CSUM_SIZE_16:
 490                 ret = csum16_get(css);
 491                 break;
 492         }
 493
 494         return ret;
 495 }
 496
 497
 498 /*
 499  * routines to write data to the output file
 500  */
 501 int
 502 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 503                 struct csum_state *css)
 504 {
 505         errno = 0;
 506
 507         fwrite(data, len, 1, outfile);
 508         if (errno) {
 509                 ERRS("unable to write output file");
 510                 return ERR_FATAL;
 511         }
 512
 513         if (css) {
 514                 csum_update(data, len, css);
 515         }
 516
 517         return 0;
 518 }
 519
 520
 521 int
 522 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 523                  struct csum_state *css)
 524 {
 525         uint8_t buf[512];
 526         size_t buflen = sizeof(buf);
 527         int err;
 528
 529         memset(buf, padc, buflen);
 530         while (len > 0) {
 531                 if (len < buflen)
 532                         buflen = len;
 533
 534                 err = write_out_data(outfile, buf, buflen, css);
 535                 if (err)
 536                         return err;
 537
 538                 len -= buflen;
 539         }
 540
 541         return 0;
 542 }
 543
 544
 545 int
 546 block_stat_file(struct csys_block *block)
 547 {
 548         struct stat st;
 549         int err;
 550
 551         if (block->file_name == NULL)
 552                 return 0;
 553
 554         err = stat(block->file_name, &st);
 555         if (err){
 556                 ERRS("stat failed on %s", block->file_name);
 557                 return ERR_FATAL;
 558         }
 559
 560         block->file_size = st.st_size;
 561         return 0;
 562 }
 563
 564
 565 int
 566 block_writeout_hdr(FILE *outfile, struct csys_block *block)
 567 {
 568         struct csys_header hdr;
 569         int res;
 570
 571         if (block->size_hdr == 0)
 572                 return 0;
 573
 574         /* setup header fields */
 575         memcpy(hdr.sig, block->sig, 4);
 576         hdr.addr = HOST_TO_LE32(block->addr);
 577         hdr.size = HOST_TO_LE32(block->align-block->size_hdr);
 578
 579         DBG(1,"writing header for block");
 580         res = write_out_data(outfile, (uint8_t *)&hdr, sizeof(hdr),NULL);
 581         return res;
 582
 583 }
 584
 585
 586 int
 587 block_writeout_file(FILE *outfile, struct csys_block *block)
 588 {
 589         char buf[FILE_BUF_LEN];
 590         size_t buflen = sizeof(buf);
 591         FILE *f;
 592         size_t len;
 593         int res;
 594
 595         if (block->file_name == NULL)
 596                 return 0;
 597
 598         if (block->file_size == 0)
 599                 return 0;
 600
 601         errno = 0;
 602         f = fopen(block->file_name,"r");
 603         if (errno) {
 604                 ERRS("unable to open file: %s", block->file_name);
 605                 return ERR_FATAL;
 606         }
 607
 608         len = block->file_size;
 609         while (len > 0) {
 610                 if (len < buflen)
 611                         buflen = len;
 612
 613                 /* read data from source file */
 614                 errno = 0;
 615                 fread(buf, buflen, 1, f);
 616                 if (errno != 0) {
 617                         ERRS("unable to read from file: %s", block->file_name);
 618                         res = ERR_FATAL;
 619                         break;
 620                 }
 621
 622                 res = write_out_data(outfile, buf, buflen, block->css);
 623                 if (res)
 624                         break;
 625
 626                 len -= buflen;
 627         }
 628
 629         fclose(f);
 630         return res;
 631 }
 632
 633
 634 int
 635 block_writeout_data(FILE *outfile, struct csys_block *block)
 636 {
 637         int res;
 638         size_t padlen;
 639
 640         res = block_writeout_file(outfile, block);
 641         if (res)
 642                 return res;
 643
 644         /* write padding data if neccesary */
 645         padlen = block->size_avail - block->file_size;
 646         DBG(1,"padding block, length=%d", padlen);
 647         res = write_out_padding(outfile, padlen, block->padc, block->css);
 648
 649         return res;
 650 }
 651
 652
 653 int
 654 block_writeout_csum(FILE *outfile, struct csys_block *block)
 655 {
 656         uint16_t csum;
 657         int res;
 658
 659         if (block->size_csum == 0)
 660                 return 0;
 661
 662         DBG(1,"writing checksum for block");
 663         csum = HOST_TO_LE16(csum_get(block->css));
 664         res = write_out_data(outfile, (uint8_t *)&csum, block->size_csum, NULL);
 665
 666         return res;
 667 }
 668
 669
 670 int
 671 block_writeout(FILE *outfile, struct csys_block *block)
 672 {
 673         int res;
 674         struct csum_state css;
 675
 676         res = 0;
 677
 678         if (block == NULL)
 679                 return res;
 680
 681         block->css = NULL;
 682
 683         DBG(2, "writing block, file=%s, file_size=%d, space=%d",
 684                 block->file_name, block->file_size, block->size_avail);
 685         res = block_writeout_hdr(outfile, block);
 686         if (res)
 687                 return res;
 688
 689         if (block->size_csum != 0) {
 690                 block->css = &css;
 691                 csum_init(&css, block->size_csum);
 692         }
 693
 694         res = block_writeout_data(outfile, block);
 695         if (res)
 696                 return res;
 697
 698         res = block_writeout_csum(outfile, block);
 699         if (res)
 700                 return res;
 701
 702         return res;
 703 }
 704
 705
 706 int
 707 write_out_blocks(FILE *outfile)
 708 {
 709         struct csys_block *block;
 710         int i, res;
 711
 712         res = block_writeout(outfile, boot_block);
 713         if (res)
 714                 return res;
 715
 716         res = block_writeout(outfile, conf_block);
 717         if (res)
 718                 return res;
 719
 720         res = block_writeout(outfile, webp_block);
 721         if (res)
 722                 return res;
 723
 724         res = block_writeout(outfile, code_block);
 725         if (res)
 726                 return res;
 727
 728         res = 0;
 729         for (i=0; i < num_blocks; i++) {
 730                 block = &blocks[i];
 731
 732                 if (block->type != BLOCK_TYPE_XTRA)
 733                         continue;
 734
 735                 res = block_writeout(outfile, block);
 736                 if (res)
 737                         break;
 738         }
 739
 740         return res;
 741 }
 742
 743
 744 struct board_info *
 745 find_board(char *model)
 746 {
 747         struct board_info *ret;
 748         struct board_info *board;
 749
 750         ret = NULL;
 751         for (board = boards; board->model != NULL; board++){
 752                 if (strcasecmp(model, board->model) == 0) {
 753                         ret = board;
 754                         break;
 755                 }
 756         };
 757
 758         return ret;
 759 }
 760
 761
 762 int
 763 parse_opt_board(char ch, char *arg)
 764 {
 765
 766         DBG(1,"parsing board option: -%c %s", ch, arg);
 767
 768         if (board != NULL) {
 769                 ERR("only one board option allowed");
 770                 return ERR_FATAL;
 771         }
 772
 773         if (required_arg(ch, arg))
 774                 return ERR_FATAL;
 775
 776         board = find_board(arg);
 777         if (board == NULL){
 778                 ERR("invalid/unknown board specified: %s", arg);
 779                 return ERR_FATAL;
 780         }
 781
 782         return 0;
 783 }
 784
 785
 786 int
 787 parse_opt_block(char ch, char *arg)
 788 {
 789         char buf[MAX_ARG_LEN];
 790         char *argv[MAX_ARG_COUNT];
 791         int argc;
 792         char *p;
 793         struct csys_block *block;
 794         int i;
 795
 796         if ( num_blocks > MAX_NUM_BLOCKS ) {
 797                 ERR("too many blocks specified");
 798                 return ERR_FATAL;
 799         }
 800
 801         block = &blocks[num_blocks];
 802
 803         /* setup default field values */
 804         block->need_file = 1;
 805         block->padc = 0xFF;
 806
 807         switch (ch) {
 808         case 'b':
 809                 if (boot_block) {
 810                         WARN("only one boot block allowed");
 811                         break;
 812                 }
 813                 block->type = BLOCK_TYPE_BOOT;
 814                 boot_block = block;
 815                 break;
 816         case 'c':
 817                 if (conf_block) {
 818                         WARN("only one config block allowed");
 819                         break;
 820                 }
 821                 block->type = BLOCK_TYPE_CONF;
 822                 conf_block = block;
 823                 break;
 824         case 'w':
 825                 if (webp_block) {
 826                         WARN("only one web block allowed");
 827                         break;
 828                 }
 829                 block->type = BLOCK_TYPE_WEBP;
 830                 block->size_hdr = sizeof(struct csys_header);
 831                 block->size_csum = CSUM_SIZE_8;
 832                 block->need_file = 0;
 833                 webp_block = block;
 834                 break;
 835         case 'r':
 836                 if (code_block) {
 837                         WARN("only one runtime block allowed");
 838                         break;
 839                 }
 840                 block->type = BLOCK_TYPE_CODE;
 841                 block->size_hdr = sizeof(struct csys_header);
 842                 block->size_csum = CSUM_SIZE_16;
 843                 code_block = block;
 844                 break;
 845         case 'x':
 846                 block->type = BLOCK_TYPE_XTRA;
 847                 break;
 848         default:
 849                 ERR("unknown block type \"%c\"", ch);
 850                 return ERR_FATAL;
 851         }
 852
 853         argc = parse_arg(arg, buf, argv);
 854
 855         i = 0;
 856         p = argv[i++];
 857         if (!is_empty_arg(p)) {
 858                 block->file_name = strdup(p);
 859                 if (block->file_name == NULL) {
 860                         ERR("not enough memory");
 861                         return ERR_FATAL;
 862                 }
 863         } else if (block->need_file){
 864                 ERR("no file specified in %s", arg);
 865                 return ERR_FATAL;
 866         }
 867
 868         if (block->size_hdr) {
 869                 p = argv[i++];
 870                 if (!is_empty_arg(p)) {
 871                         if (str2u32(p, &block->addr) != 0) {
 872                                 ERR("invalid start address in %s", arg);
 873                                 return ERR_FATAL;
 874                         }
 875                         block->addr_set = 1;
 876                 }
 877         }
 878
 879         p = argv[i++];
 880         if (!is_empty_arg(p)) {
 881                 if (str2u32(p, &block->align) != 0) {
 882                         ERR("invalid alignment value in %s", arg);
 883                         return ERR_FATAL;
 884                 }
 885                 block->align_set = 1;
 886         }
 887
 888         p = argv[i++];
 889         if (!is_empty_arg(p) && (str2u8(p, &block->padc) != 0)) {
 890                 ERR("invalid paddig character in %s", arg);
 891                 return ERR_FATAL;
 892         }
 893
 894         num_blocks++;
 895
 896         return 0;
 897 }
 898
 899
 900 int
 901 process_blocks(void)
 902 {
 903         struct csys_block *block;
 904         uint32_t offs = 0;
 905         int i;
 906         int res;
 907
 908         res = 0;
 909         /* collecting stats */
 910         for (i = 0; i < num_blocks; i++) {
 911                 block = &blocks[i];
 912                 res = block_stat_file(block);
 913                 if (res)
 914                         return res;
 915         }
 916
 917         /* bootloader */
 918         block = boot_block;
 919         if (block) {
 920                 block->size = board->boot_size;
 921                 if (block->file_size > board->boot_size) {
 922                         WARN("boot block is too big");
 923                         res = ERR_INVALID_IMAGE;
 924                 }
 925         }
 926         offs += board->boot_size;
 927
 928         /* configuration data */
 929         block = conf_block;
 930         if (block) {
 931                 block->size = board->conf_size;
 932                 if (block->file_size > board->conf_size) {
 933                         WARN("config block is too big");
 934                         res = ERR_INVALID_IMAGE;
 935                 }
 936         }
 937         offs += board->conf_size;
 938
 939         /* webpages */
 940         block = webp_block;
 941         if (block) {
 942
 943                 memcpy(block->sig, board->sig_webp, 4);
 944
 945                 if (block->addr_set == 0)
 946                         block->addr = board->addr_webp;
 947
 948                 if (block->align_set == 0)
 949                         block->align = DEFAULT_BLOCK_ALIGN;
 950
 951                 block->size = align(offs + block->file_size + block->size_hdr +
 952                                 block->size_csum, block->align) - offs;
 953
 954                 if (block->size > board->webp_size_max) {
 955                         WARN("webpages block is too big");
 956                         res = ERR_INVALID_IMAGE;
 957                 }
 958
 959                 DBG(2,"webpages start at %08x, size=%08x", offs,
 960                                 block->size);
 961
 962                 offs += block->size;
 963                 if (offs > board->flash_size) {
 964                         WARN("webp block is too big");
 965                         res = ERR_INVALID_IMAGE;
 966                 }
 967         }
 968
 969         /* runtime code */
 970         block = code_block;
 971         if (block) {
 972                 memcpy(code_block->sig, SIG_CSYS, 4);
 973
 974                 if (block->addr_set == 0)
 975                         block->addr = board->addr_code;
 976
 977                 if (block->align_set == 0)
 978                         block->align = DEFAULT_BLOCK_ALIGN;
 979
 980                 block->size = align(offs + block->file_size +
 981                                 block->size_hdr + block->size_csum,
 982                                 block->align) - offs;
 983
 984                 DBG(2,"code block start at %08x, size=%08x", offs,
 985                                 block->size);
 986
 987                 offs += block->size;
 988                 if (offs > board->flash_size) {
 989                         WARN("code block is too big");
 990                         res = ERR_INVALID_IMAGE;
 991                 }
 992         }
 993
 994         for (i = 0; i < num_blocks; i++) {
 995                 block = &blocks[i];
 996
 997                 if (block->type != BLOCK_TYPE_XTRA)
 998                         continue;
 999
1000                 if (block->align_set == 0)
1001                         block->align = DEFAULT_BLOCK_ALIGN;
1002
1003                 block->size = align(offs + block->file_size,
1004                                 block->align) - offs;
1005
1006                 DBG(2,"file %s start at %08x, size=%08x, align=%08x",
1007                         block->file_name, offs, block->size, block->align);
1008
1009                 offs += block->size;
1010                 if (offs > board->flash_size) {
1011                         WARN("file %s is too big, size=%d, avail=%d",
1012                                 block->file_name, block->file_size,
1013                                 board->flash_size - offs);
1014                         res = ERR_INVALID_IMAGE;
1015                 }
1016         }
1017
1018         for (i = 0; i < num_blocks; i++) {
1019                 block = &blocks[i];
1020
1021                 block->size_avail = block->size - block->size_hdr -
1022                         block->size_csum;
1023
1024                 if (block->size_avail < block->file_size) {
1025                         WARN("file %s is too big, size=%d, avail=%d",
1026                                 block->file_name, block->file_size,
1027                                 block->size_avail);
1028                         res = ERR_INVALID_IMAGE;
1029                 }
1030         }
1031
1032         return res;
1033 }
1034
1035
1036 int
1037 main(int argc, char *argv[])
1038 {
1039         int optinvalid = 0;   /* flag for invalid option */
1040         int c;
1041         int res = ERR_FATAL;
1042
1043         FILE *outfile;
1044
1045         progname=basename(argv[0]);
1046
1047         opterr = 0;  /* could not print standard getopt error messages */
1048         while ( 1 ) {
1049                 optinvalid = 0;
1050
1051                 c = getopt(argc, argv, "b:B:c:dhkr:vw:x:");
1052                 if (c == -1)
1053                         break;
1054
1055                 switch (c) {
1056                 case 'b':
1057                 case 'c':
1058                 case 'r':
1059                 case 'x':
1060                         optinvalid = parse_opt_block(c,optarg);
1061                         break;
1062                 case 'w':
1063                         if (optarg != NULL && *optarg == '-') {
1064                                 /* rollback */
1065                                 optind--;
1066                                 optarg = NULL;
1067                         }
1068                         optinvalid = parse_opt_block(c,optarg);
1069                         break;
1070                 case 'd':
1071                         invalid_causes_error = 0;
1072                         break;
1073                 case 'k':
1074                         keep_invalid_images = 1;
1075                         break;
1076                 case 'B':
1077                         optinvalid = parse_opt_board(c,optarg);
1078                         break;
1079                 case 'v':
1080                         verblevel++;
1081                         break;
1082                 case 'h':
1083                         usage(EXIT_SUCCESS);
1084                         break;
1085                 default:
1086                         optinvalid = 1;
1087                         break;
1088                 }
1089                 if (optinvalid != 0 ){
1090                         ERR("invalid option: -%c", optopt);
1091                         goto out;
1092                 }
1093         }
1094
1095         if (board == NULL) {
1096                 ERR("no board specified");
1097                 goto out;
1098         }
1099
1100         if (optind == argc) {
1101                 ERR("no output file specified");
1102                 goto out;
1103         }
1104
1105         ofname = argv[optind++];
1106
1107         if (optind < argc) {
1108                 ERR("invalid option: %s", argv[optind]);
1109                 goto out;
1110         }
1111
1112         res = process_blocks();
1113         if (res == ERR_FATAL)
1114                 goto out;
1115
1116         if (res == ERR_INVALID_IMAGE) {
1117                 if (invalid_causes_error)
1118                         res = ERR_FATAL;
1119
1120                 if (keep_invalid_images == 0) {
1121                         WARN("generation of invalid images disabled", ofname);
1122                         goto out;
1123                 }
1124
1125                 WARN("generating invalid image", ofname);
1126         }
1127
1128         outfile = fopen(ofname, "w");
1129         if (outfile == NULL) {
1130                 ERRS("could not open \"%s\" for writing", ofname);
1131                 res = ERR_FATAL;
1132                 goto out;
1133         }
1134
1135         if (write_out_blocks(outfile) != 0) {
1136                 res = ERR_FATAL;
1137                 goto out_flush;
1138         }
1139
1140         DBG(1,"Image file %s completed.", ofname);
1141
1142 out_flush:
1143         fflush(outfile);
1144         fclose(outfile);
1145         if (res == ERR_FATAL) {
1146                 unlink(ofname);
1147         }
1148 out:
1149         if (res == ERR_FATAL)
1150                 return EXIT_FAILURE;
1151
1152         return EXIT_SUCCESS;
1153 }