tools/firmware-utils/src/mkcsysimg.c

   1 /*
   2  *
   3  *  Copyright (C) 2007-2009 Gabor Juhos <juhosg@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-6524N", "Edimax BR-6524N", 2, SIG_BR6524N),
 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         /* Conceptronic products */
 183         BOARD_ADM("C54BSR4", "Conceptronic C54BSR4", 2, SIG_C54BSR4),
 184
 185         /* OSBRiDGE products */
 186         BOARD_ADM("5GXi", "OSBDRiDGE 5GXi", 2, SIG_5GXI),
 187
 188         {.model = NULL}
 189 };
 190
 191 /*
 192  * Message macros
 193  */
 194 #define ERR(fmt, ...) do { \
 195         fflush(0); \
 196         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ ); \
 197 } while (0)
 198
 199 #define ERRS(fmt, ...) do { \
 200         int save = errno; \
 201         fflush(0); \
 202         fprintf(stderr, "[%s] *** error: " fmt "\n", progname, ## __VA_ARGS__ \
 203                 , strerror(save)); \
 204 } while (0)
 205
 206 #define WARN(fmt, ...) do { \
 207         fprintf(stderr, "[%s] *** warning: " fmt "\n", progname, ## __VA_ARGS__ ); \
 208 } while (0)
 209
 210 #define DBG(lev, fmt, ...) do { \
 211         if (verblevel < lev) \
 212                 break;\
 213         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 214 } while (0)
 215
 216 #define ERR_FATAL               -1
 217 #define ERR_INVALID_IMAGE       -2
 218
 219 void
 220 usage(int status)
 221 {
 222         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 223         struct board_info *board;
 224
 225         fprintf(stream, "Usage: %s [OPTIONS...] <file>\n", progname);
 226         fprintf(stream,
 227 "\n"
 228 "Options:\n"
 229 "  -B <board>      create image for the board specified with <board>.\n"
 230 "                  valid <board> values:\n"
 231         );
 232         for (board = boards; board->model != NULL; board++){
 233                 fprintf(stream,
 234 "                  %-12s: %s\n",
 235                  board->model, board->name);
 236         };
 237         fprintf(stream,
 238 "  -d              don't throw error on invalid images\n"
 239 "  -k              keep invalid images\n"
 240 "  -b <file>[:<align>[:<padc>]]\n"
 241 "                  add boot code to the image\n"
 242 "  -c <file>[:<align>[:<padc>]]\n"
 243 "                  add configuration settings to the image\n"
 244 "  -r <file>:[<addr>][:<align>[:<padc>]]\n"
 245 "                  add runtime code to the image\n"
 246 "  -w [<file>:[<addr>][:<align>[:<padc>]]]\n"
 247 "                  add webpages to the image\n"
 248 "  -x <file>[:<align>[:<padc>]]\n"
 249 "                  add extra data at the end of the image\n"
 250 "  -h              show this screen\n"
 251 "Parameters:\n"
 252 "  <file>          write output to the file <file>\n"
 253         );
 254
 255         exit(status);
 256 }
 257
 258 static inline uint32_t align(uint32_t base, uint32_t alignment)
 259 {
 260         uint32_t ret;
 261
 262         if (alignment) {
 263                 ret = (base + alignment - 1);
 264                 ret &= ~(alignment-1);
 265         } else {
 266                 ret = base;
 267         }
 268
 269         return ret;
 270 }
 271
 272 /*
 273  * argument parsing
 274  */
 275 int
 276 str2u32(char *arg, uint32_t *val)
 277 {
 278         char *err = NULL;
 279         uint32_t t;
 280
 281         errno=0;
 282         t = strtoul(arg, &err, 0);
 283         if (errno || (err==arg) || ((err != NULL) && *err)) {
 284                 return -1;
 285         }
 286
 287         *val = t;
 288         return 0;
 289 }
 290
 291
 292 int
 293 str2u16(char *arg, uint16_t *val)
 294 {
 295         char *err = NULL;
 296         uint32_t t;
 297
 298         errno=0;
 299         t = strtoul(arg, &err, 0);
 300         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 301                 return -1;
 302         }
 303
 304         *val = t & 0xFFFF;
 305         return 0;
 306 }
 307
 308 int
 309 str2u8(char *arg, uint8_t *val)
 310 {
 311         char *err = NULL;
 312         uint32_t t;
 313
 314         errno=0;
 315         t = strtoul(arg, &err, 0);
 316         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 317                 return -1;
 318         }
 319
 320         *val = t & 0xFF;
 321         return 0;
 322 }
 323
 324 int
 325 str2sig(char *arg, uint32_t *sig)
 326 {
 327         if (strlen(arg) != 4)
 328                 return -1;
 329
 330         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 331
 332         return 0;
 333 }
 334
 335
 336 int
 337 parse_arg(char *arg, char *buf, char *argv[])
 338 {
 339         int res = 0;
 340         size_t argl;
 341         char *tok;
 342         char **ap = &buf;
 343         int i;
 344
 345         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 346
 347         if ((arg == NULL)) {
 348                 /* no arguments */
 349                 return 0;
 350         }
 351
 352         argl = strlen(arg);
 353         if (argl == 0) {
 354                 /* no arguments */
 355                 return 0;
 356         }
 357
 358         if (argl >= MAX_ARG_LEN) {
 359                 /* argument is too long */
 360                 argl = MAX_ARG_LEN-1;
 361         }
 362
 363         memcpy(buf, arg, argl);
 364         buf[argl] = '\0';
 365
 366         for (i = 0; i < MAX_ARG_COUNT; i++) {
 367                 tok = strsep(ap, ":");
 368                 if (tok == NULL) {
 369                         break;
 370                 }
 371 #if 0
 372                 else if (tok[0] == '\0') {
 373                         break;
 374                 }
 375 #endif
 376                 argv[i] = tok;
 377                 res++;
 378         }
 379
 380         return res;
 381 }
 382
 383
 384 int
 385 required_arg(char c, char *arg)
 386 {
 387         if (arg == NULL || *arg != '-')
 388                 return 0;
 389
 390         ERR("option -%c requires an argument\n", c);
 391         return ERR_FATAL;
 392 }
 393
 394
 395 int
 396 is_empty_arg(char *arg)
 397 {
 398         int ret = 1;
 399         if (arg != NULL) {
 400                 if (*arg) ret = 0;
 401         };
 402         return ret;
 403 }
 404
 405
 406 void
 407 csum8_update(uint8_t *p, uint32_t len, struct csum_state *css)
 408 {
 409         for ( ; len > 0; len --) {
 410                 css->val += *p++;
 411         }
 412 }
 413
 414
 415 uint16_t
 416 csum8_get(struct csum_state *css)
 417 {
 418         uint8_t t;
 419
 420         t = css->val;
 421         return ~t + 1;
 422 }
 423
 424
 425 void
 426 csum16_update(uint8_t *p, uint32_t len, struct csum_state *css)
 427 {
 428         uint16_t t;
 429
 430         if (css->odd) {
 431                 t = css->tmp + (p[0]<<8);
 432                 css->val += LE16_TO_HOST(t);
 433                 css->odd = 0;
 434                 len--;
 435                 p++;
 436         }
 437
 438         for ( ; len > 1; len -= 2, p +=2 ) {
 439                 t = p[0] + (p[1] << 8);
 440                 css->val += LE16_TO_HOST(t);
 441         }
 442
 443         if (len == 1) {
 444                 css->tmp = p[0];
 445                 css->odd = 1;
 446         }
 447 }
 448
 449
 450 uint16_t
 451 csum16_get(struct csum_state *css)
 452 {
 453         char pad = 0;
 454
 455         csum16_update(&pad, 1, css);
 456         return ~css->val + 1;
 457 }
 458
 459
 460 void
 461 csum_init(struct csum_state *css, int size)
 462 {
 463         css->val = 0;
 464         css->tmp = 0;
 465         css->odd = 0;
 466         css->size = size;
 467 }
 468
 469
 470 void
 471 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 472 {
 473         switch (css->size) {
 474         case CSUM_SIZE_8:
 475                 csum8_update(p,len,css);
 476                 break;
 477         case CSUM_SIZE_16:
 478                 csum16_update(p,len,css);
 479                 break;
 480         }
 481 }
 482
 483
 484 uint16_t
 485 csum_get(struct csum_state *css)
 486 {
 487         uint16_t ret;
 488
 489         switch (css->size) {
 490         case CSUM_SIZE_8:
 491                 ret = csum8_get(css);
 492                 break;
 493         case CSUM_SIZE_16:
 494                 ret = csum16_get(css);
 495                 break;
 496         }
 497
 498         return ret;
 499 }
 500
 501
 502 /*
 503  * routines to write data to the output file
 504  */
 505 int
 506 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 507                 struct csum_state *css)
 508 {
 509         errno = 0;
 510
 511         fwrite(data, len, 1, outfile);
 512         if (errno) {
 513                 ERRS("unable to write output file");
 514                 return ERR_FATAL;
 515         }
 516
 517         if (css) {
 518                 csum_update(data, len, css);
 519         }
 520
 521         return 0;
 522 }
 523
 524
 525 int
 526 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 527                  struct csum_state *css)
 528 {
 529         uint8_t buf[512];
 530         size_t buflen = sizeof(buf);
 531         int err;
 532
 533         memset(buf, padc, buflen);
 534         while (len > 0) {
 535                 if (len < buflen)
 536                         buflen = len;
 537
 538                 err = write_out_data(outfile, buf, buflen, css);
 539                 if (err)
 540                         return err;
 541
 542                 len -= buflen;
 543         }
 544
 545         return 0;
 546 }
 547
 548
 549 int
 550 block_stat_file(struct csys_block *block)
 551 {
 552         struct stat st;
 553         int err;
 554
 555         if (block->file_name == NULL)
 556                 return 0;
 557
 558         err = stat(block->file_name, &st);
 559         if (err){
 560                 ERRS("stat failed on %s", block->file_name);
 561                 return ERR_FATAL;
 562         }
 563
 564         block->file_size = st.st_size;
 565         return 0;
 566 }
 567
 568
 569 int
 570 block_writeout_hdr(FILE *outfile, struct csys_block *block)
 571 {
 572         struct csys_header hdr;
 573         int res;
 574
 575         if (block->size_hdr == 0)
 576                 return 0;
 577
 578         /* setup header fields */
 579         memcpy(hdr.sig, block->sig, 4);
 580         hdr.addr = HOST_TO_LE32(block->addr);
 581         hdr.size = HOST_TO_LE32(block->size - block->size_hdr - block->size_csum);
 582
 583         DBG(1,"writing header for block");
 584         res = write_out_data(outfile, (uint8_t *)&hdr, sizeof(hdr),NULL);
 585         return res;
 586
 587 }
 588
 589
 590 int
 591 block_writeout_file(FILE *outfile, struct csys_block *block)
 592 {
 593         char buf[FILE_BUF_LEN];
 594         size_t buflen = sizeof(buf);
 595         FILE *f;
 596         size_t len;
 597         int res;
 598
 599         if (block->file_name == NULL)
 600                 return 0;
 601
 602         if (block->file_size == 0)
 603                 return 0;
 604
 605         errno = 0;
 606         f = fopen(block->file_name,"r");
 607         if (errno) {
 608                 ERRS("unable to open file: %s", block->file_name);
 609                 return ERR_FATAL;
 610         }
 611
 612         len = block->file_size;
 613         while (len > 0) {
 614                 if (len < buflen)
 615                         buflen = len;
 616
 617                 /* read data from source file */
 618                 errno = 0;
 619                 fread(buf, buflen, 1, f);
 620                 if (errno != 0) {
 621                         ERRS("unable to read from file: %s", block->file_name);
 622                         res = ERR_FATAL;
 623                         break;
 624                 }
 625
 626                 res = write_out_data(outfile, buf, buflen, block->css);
 627                 if (res)
 628                         break;
 629
 630                 len -= buflen;
 631         }
 632
 633         fclose(f);
 634         return res;
 635 }
 636
 637
 638 int
 639 block_writeout_data(FILE *outfile, struct csys_block *block)
 640 {
 641         int res;
 642         size_t padlen;
 643
 644         res = block_writeout_file(outfile, block);
 645         if (res)
 646                 return res;
 647
 648         /* write padding data if neccesary */
 649         padlen = block->size_avail - block->file_size;
 650         DBG(1,"padding block, length=%d", padlen);
 651         res = write_out_padding(outfile, padlen, block->padc, block->css);
 652
 653         return res;
 654 }
 655
 656
 657 int
 658 block_writeout_csum(FILE *outfile, struct csys_block *block)
 659 {
 660         uint16_t csum;
 661         int res;
 662
 663         if (block->size_csum == 0)
 664                 return 0;
 665
 666         DBG(1,"writing checksum for block");
 667         csum = HOST_TO_LE16(csum_get(block->css));
 668         res = write_out_data(outfile, (uint8_t *)&csum, block->size_csum, NULL);
 669
 670         return res;
 671 }
 672
 673
 674 int
 675 block_writeout(FILE *outfile, struct csys_block *block)
 676 {
 677         int res;
 678         struct csum_state css;
 679
 680         res = 0;
 681
 682         if (block == NULL)
 683                 return res;
 684
 685         block->css = NULL;
 686
 687         DBG(2, "writing block, file=%s, file_size=%d, space=%d",
 688                 block->file_name, block->file_size, block->size_avail);
 689         res = block_writeout_hdr(outfile, block);
 690         if (res)
 691                 return res;
 692
 693         if (block->size_csum != 0) {
 694                 block->css = &css;
 695                 csum_init(&css, block->size_csum);
 696         }
 697
 698         res = block_writeout_data(outfile, block);
 699         if (res)
 700                 return res;
 701
 702         res = block_writeout_csum(outfile, block);
 703         if (res)
 704                 return res;
 705
 706         return res;
 707 }
 708
 709
 710 int
 711 write_out_blocks(FILE *outfile)
 712 {
 713         struct csys_block *block;
 714         int i, res;
 715
 716         res = block_writeout(outfile, boot_block);
 717         if (res)
 718                 return res;
 719
 720         res = block_writeout(outfile, conf_block);
 721         if (res)
 722                 return res;
 723
 724         res = block_writeout(outfile, webp_block);
 725         if (res)
 726                 return res;
 727
 728         res = block_writeout(outfile, code_block);
 729         if (res)
 730                 return res;
 731
 732         res = 0;
 733         for (i=0; i < num_blocks; i++) {
 734                 block = &blocks[i];
 735
 736                 if (block->type != BLOCK_TYPE_XTRA)
 737                         continue;
 738
 739                 res = block_writeout(outfile, block);
 740                 if (res)
 741                         break;
 742         }
 743
 744         return res;
 745 }
 746
 747
 748 struct board_info *
 749 find_board(char *model)
 750 {
 751         struct board_info *ret;
 752         struct board_info *board;
 753
 754         ret = NULL;
 755         for (board = boards; board->model != NULL; board++){
 756                 if (strcasecmp(model, board->model) == 0) {
 757                         ret = board;
 758                         break;
 759                 }
 760         };
 761
 762         return ret;
 763 }
 764
 765
 766 int
 767 parse_opt_board(char ch, char *arg)
 768 {
 769
 770         DBG(1,"parsing board option: -%c %s", ch, arg);
 771
 772         if (board != NULL) {
 773                 ERR("only one board option allowed");
 774                 return ERR_FATAL;
 775         }
 776
 777         if (required_arg(ch, arg))
 778                 return ERR_FATAL;
 779
 780         board = find_board(arg);
 781         if (board == NULL){
 782                 ERR("invalid/unknown board specified: %s", arg);
 783                 return ERR_FATAL;
 784         }
 785
 786         return 0;
 787 }
 788
 789
 790 int
 791 parse_opt_block(char ch, char *arg)
 792 {
 793         char buf[MAX_ARG_LEN];
 794         char *argv[MAX_ARG_COUNT];
 795         int argc;
 796         char *p;
 797         struct csys_block *block;
 798         int i;
 799
 800         if ( num_blocks > MAX_NUM_BLOCKS ) {
 801                 ERR("too many blocks specified");
 802                 return ERR_FATAL;
 803         }
 804
 805         block = &blocks[num_blocks];
 806
 807         /* setup default field values */
 808         block->need_file = 1;
 809         block->padc = 0xFF;
 810
 811         switch (ch) {
 812         case 'b':
 813                 if (boot_block) {
 814                         WARN("only one boot block allowed");
 815                         break;
 816                 }
 817                 block->type = BLOCK_TYPE_BOOT;
 818                 boot_block = block;
 819                 break;
 820         case 'c':
 821                 if (conf_block) {
 822                         WARN("only one config block allowed");
 823                         break;
 824                 }
 825                 block->type = BLOCK_TYPE_CONF;
 826                 conf_block = block;
 827                 break;
 828         case 'w':
 829                 if (webp_block) {
 830                         WARN("only one web block allowed");
 831                         break;
 832                 }
 833                 block->type = BLOCK_TYPE_WEBP;
 834                 block->size_hdr = sizeof(struct csys_header);
 835                 block->size_csum = CSUM_SIZE_8;
 836                 block->need_file = 0;
 837                 webp_block = block;
 838                 break;
 839         case 'r':
 840                 if (code_block) {
 841                         WARN("only one runtime block allowed");
 842                         break;
 843                 }
 844                 block->type = BLOCK_TYPE_CODE;
 845                 block->size_hdr = sizeof(struct csys_header);
 846                 block->size_csum = CSUM_SIZE_16;
 847                 code_block = block;
 848                 break;
 849         case 'x':
 850                 block->type = BLOCK_TYPE_XTRA;
 851                 break;
 852         default:
 853                 ERR("unknown block type \"%c\"", ch);
 854                 return ERR_FATAL;
 855         }
 856
 857         argc = parse_arg(arg, buf, argv);
 858
 859         i = 0;
 860         p = argv[i++];
 861         if (!is_empty_arg(p)) {
 862                 block->file_name = strdup(p);
 863                 if (block->file_name == NULL) {
 864                         ERR("not enough memory");
 865                         return ERR_FATAL;
 866                 }
 867         } else if (block->need_file){
 868                 ERR("no file specified in %s", arg);
 869                 return ERR_FATAL;
 870         }
 871
 872         if (block->size_hdr) {
 873                 p = argv[i++];
 874                 if (!is_empty_arg(p)) {
 875                         if (str2u32(p, &block->addr) != 0) {
 876                                 ERR("invalid start address in %s", arg);
 877                                 return ERR_FATAL;
 878                         }
 879                         block->addr_set = 1;
 880                 }
 881         }
 882
 883         p = argv[i++];
 884         if (!is_empty_arg(p)) {
 885                 if (str2u32(p, &block->align) != 0) {
 886                         ERR("invalid alignment value in %s", arg);
 887                         return ERR_FATAL;
 888                 }
 889                 block->align_set = 1;
 890         }
 891
 892         p = argv[i++];
 893         if (!is_empty_arg(p) && (str2u8(p, &block->padc) != 0)) {
 894                 ERR("invalid paddig character in %s", arg);
 895                 return ERR_FATAL;
 896         }
 897
 898         num_blocks++;
 899
 900         return 0;
 901 }
 902
 903
 904 int
 905 process_blocks(void)
 906 {
 907         struct csys_block *block;
 908         uint32_t offs = 0;
 909         int i;
 910         int res;
 911
 912         res = 0;
 913         /* collecting stats */
 914         for (i = 0; i < num_blocks; i++) {
 915                 block = &blocks[i];
 916                 res = block_stat_file(block);
 917                 if (res)
 918                         return res;
 919         }
 920
 921         /* bootloader */
 922         block = boot_block;
 923         if (block) {
 924                 block->size = board->boot_size;
 925                 if (block->file_size > board->boot_size) {
 926                         WARN("boot block is too big");
 927                         res = ERR_INVALID_IMAGE;
 928                 }
 929         }
 930         offs += board->boot_size;
 931
 932         /* configuration data */
 933         block = conf_block;
 934         if (block) {
 935                 block->size = board->conf_size;
 936                 if (block->file_size > board->conf_size) {
 937                         WARN("config block is too big");
 938                         res = ERR_INVALID_IMAGE;
 939                 }
 940         }
 941         offs += board->conf_size;
 942
 943         /* webpages */
 944         block = webp_block;
 945         if (block) {
 946
 947                 memcpy(block->sig, board->sig_webp, 4);
 948
 949                 if (block->addr_set == 0)
 950                         block->addr = board->addr_webp;
 951
 952                 if (block->align_set == 0)
 953                         block->align = DEFAULT_BLOCK_ALIGN;
 954
 955                 block->size = align(offs + block->file_size + block->size_hdr +
 956                                 block->size_csum, block->align) - offs;
 957
 958                 if (block->size > board->webp_size_max) {
 959                         WARN("webpages block is too big");
 960                         res = ERR_INVALID_IMAGE;
 961                 }
 962
 963                 DBG(2,"webpages start at %08x, size=%08x", offs,
 964                                 block->size);
 965
 966                 offs += block->size;
 967                 if (offs > board->flash_size) {
 968                         WARN("webp block is too big");
 969                         res = ERR_INVALID_IMAGE;
 970                 }
 971         }
 972
 973         /* runtime code */
 974         block = code_block;
 975         if (block) {
 976                 memcpy(code_block->sig, SIG_CSYS, 4);
 977
 978                 if (block->addr_set == 0)
 979                         block->addr = board->addr_code;
 980
 981                 if (block->align_set == 0)
 982                         block->align = DEFAULT_BLOCK_ALIGN;
 983
 984                 block->size = align(offs + block->file_size +
 985                                 block->size_hdr + block->size_csum,
 986                                 block->align) - offs;
 987
 988                 DBG(2,"code block start at %08x, size=%08x", offs,
 989                                 block->size);
 990
 991                 offs += block->size;
 992                 if (offs > board->flash_size) {
 993                         WARN("code block is too big");
 994                         res = ERR_INVALID_IMAGE;
 995                 }
 996         }
 997
 998         for (i = 0; i < num_blocks; i++) {
 999                 block = &blocks[i];
1000
1001                 if (block->type != BLOCK_TYPE_XTRA)
1002                         continue;
1003
1004                 if (block->align_set == 0)
1005                         block->align = DEFAULT_BLOCK_ALIGN;
1006
1007                 block->size = align(offs + block->file_size,
1008                                 block->align) - offs;
1009
1010                 DBG(2,"file %s start at %08x, size=%08x, align=%08x",
1011                         block->file_name, offs, block->size, block->align);
1012
1013                 offs += block->size;
1014                 if (offs > board->flash_size) {
1015                         WARN("file %s is too big, size=%d, avail=%d",
1016                                 block->file_name, block->file_size,
1017                                 board->flash_size - offs);
1018                         res = ERR_INVALID_IMAGE;
1019                 }
1020         }
1021
1022         for (i = 0; i < num_blocks; i++) {
1023                 block = &blocks[i];
1024
1025                 block->size_avail = block->size - block->size_hdr -
1026                         block->size_csum;
1027
1028                 if (block->size_avail < block->file_size) {
1029                         WARN("file %s is too big, size=%d, avail=%d",
1030                                 block->file_name, block->file_size,
1031                                 block->size_avail);
1032                         res = ERR_INVALID_IMAGE;
1033                 }
1034         }
1035
1036         return res;
1037 }
1038
1039
1040 int
1041 main(int argc, char *argv[])
1042 {
1043         int optinvalid = 0;   /* flag for invalid option */
1044         int c;
1045         int res = ERR_FATAL;
1046
1047         FILE *outfile;
1048
1049         progname=basename(argv[0]);
1050
1051         opterr = 0;  /* could not print standard getopt error messages */
1052         while ( 1 ) {
1053                 optinvalid = 0;
1054
1055                 c = getopt(argc, argv, "b:B:c:dhkr:vw:x:");
1056                 if (c == -1)
1057                         break;
1058
1059                 switch (c) {
1060                 case 'b':
1061                 case 'c':
1062                 case 'r':
1063                 case 'x':
1064                         optinvalid = parse_opt_block(c,optarg);
1065                         break;
1066                 case 'w':
1067                         if (optarg != NULL && *optarg == '-') {
1068                                 /* rollback */
1069                                 optind--;
1070                                 optarg = NULL;
1071                         }
1072                         optinvalid = parse_opt_block(c,optarg);
1073                         break;
1074                 case 'd':
1075                         invalid_causes_error = 0;
1076                         break;
1077                 case 'k':
1078                         keep_invalid_images = 1;
1079                         break;
1080                 case 'B':
1081                         optinvalid = parse_opt_board(c,optarg);
1082                         break;
1083                 case 'v':
1084                         verblevel++;
1085                         break;
1086                 case 'h':
1087                         usage(EXIT_SUCCESS);
1088                         break;
1089                 default:
1090                         optinvalid = 1;
1091                         break;
1092                 }
1093                 if (optinvalid != 0 ){
1094                         ERR("invalid option: -%c", optopt);
1095                         goto out;
1096                 }
1097         }
1098
1099         if (board == NULL) {
1100                 ERR("no board specified");
1101                 goto out;
1102         }
1103
1104         if (optind == argc) {
1105                 ERR("no output file specified");
1106                 goto out;
1107         }
1108
1109         ofname = argv[optind++];
1110
1111         if (optind < argc) {
1112                 ERR("invalid option: %s", argv[optind]);
1113                 goto out;
1114         }
1115
1116         res = process_blocks();
1117         if (res == ERR_FATAL)
1118                 goto out;
1119
1120         if (res == ERR_INVALID_IMAGE) {
1121                 if (invalid_causes_error)
1122                         res = ERR_FATAL;
1123
1124                 if (keep_invalid_images == 0) {
1125                         WARN("generation of invalid images disabled", ofname);
1126                         goto out;
1127                 }
1128
1129                 WARN("generating invalid image", ofname);
1130         }
1131
1132         outfile = fopen(ofname, "w");
1133         if (outfile == NULL) {
1134                 ERRS("could not open \"%s\" for writing", ofname);
1135                 res = ERR_FATAL;
1136                 goto out;
1137         }
1138
1139         if (write_out_blocks(outfile) != 0) {
1140                 res = ERR_FATAL;
1141                 goto out_flush;
1142         }
1143
1144         DBG(1,"Image file %s completed.", ofname);
1145
1146 out_flush:
1147         fflush(outfile);
1148         fclose(outfile);
1149         if (res == ERR_FATAL) {
1150                 unlink(ofname);
1151         }
1152 out:
1153         if (res == ERR_FATAL)
1154                 return EXIT_FAILURE;
1155
1156         return EXIT_SUCCESS;
1157 }