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 ": %s\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(void *data, uint32_t len, struct csum_state *css)
 427 {
 428         uint8_t *p = data;
 429         uint16_t t;
 430
 431         if (css->odd) {
 432                 t = css->tmp + (p[0]<<8);
 433                 css->val += LE16_TO_HOST(t);
 434                 css->odd = 0;
 435                 len--;
 436                 p++;
 437         }
 438
 439         for ( ; len > 1; len -= 2, p +=2 ) {
 440                 t = p[0] + (p[1] << 8);
 441                 css->val += LE16_TO_HOST(t);
 442         }
 443
 444         if (len == 1) {
 445                 css->tmp = p[0];
 446                 css->odd = 1;
 447         }
 448 }
 449
 450
 451 uint16_t
 452 csum16_get(struct csum_state *css)
 453 {
 454         char pad = 0;
 455
 456         csum16_update(&pad, 1, css);
 457         return ~css->val + 1;
 458 }
 459
 460
 461 void
 462 csum_init(struct csum_state *css, int size)
 463 {
 464         css->val = 0;
 465         css->tmp = 0;
 466         css->odd = 0;
 467         css->size = size;
 468 }
 469
 470
 471 void
 472 csum_update(void *data, uint32_t len, struct csum_state *css)
 473 {
 474         uint8_t *p = data;
 475
 476         switch (css->size) {
 477         case CSUM_SIZE_8:
 478                 csum8_update(p,len,css);
 479                 break;
 480         case CSUM_SIZE_16:
 481                 csum16_update(p,len,css);
 482                 break;
 483         }
 484 }
 485
 486
 487 uint16_t
 488 csum_get(struct csum_state *css)
 489 {
 490         uint16_t ret;
 491
 492         switch (css->size) {
 493         case CSUM_SIZE_8:
 494                 ret = csum8_get(css);
 495                 break;
 496         case CSUM_SIZE_16:
 497                 ret = csum16_get(css);
 498                 break;
 499         default:
 500                 ERR("invalid checksum size\n");
 501                 return 0;
 502         }
 503
 504         return ret;
 505 }
 506
 507
 508 /*
 509  * routines to write data to the output file
 510  */
 511 int
 512 write_out_data(FILE *outfile, void *data, size_t len,
 513                 struct csum_state *css)
 514 {
 515         uint8_t *ptr = data;
 516
 517         errno = 0;
 518
 519         fwrite(ptr, len, 1, outfile);
 520         if (errno) {
 521                 ERRS("unable to write output file");
 522                 return ERR_FATAL;
 523         }
 524
 525         if (css) {
 526                 csum_update(ptr, len, css);
 527         }
 528
 529         return 0;
 530 }
 531
 532
 533 int
 534 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 535                  struct csum_state *css)
 536 {
 537         uint8_t buf[512];
 538         size_t buflen = sizeof(buf);
 539         int err;
 540
 541         memset(buf, padc, buflen);
 542         while (len > 0) {
 543                 if (len < buflen)
 544                         buflen = len;
 545
 546                 err = write_out_data(outfile, buf, buflen, css);
 547                 if (err)
 548                         return err;
 549
 550                 len -= buflen;
 551         }
 552
 553         return 0;
 554 }
 555
 556
 557 int
 558 block_stat_file(struct csys_block *block)
 559 {
 560         struct stat st;
 561         int err;
 562
 563         if (block->file_name == NULL)
 564                 return 0;
 565
 566         err = stat(block->file_name, &st);
 567         if (err){
 568                 ERRS("stat failed on %s", block->file_name);
 569                 return ERR_FATAL;
 570         }
 571
 572         block->file_size = st.st_size;
 573         return 0;
 574 }
 575
 576
 577 int
 578 block_writeout_hdr(FILE *outfile, struct csys_block *block)
 579 {
 580         struct csys_header hdr;
 581         int res;
 582
 583         if (block->size_hdr == 0)
 584                 return 0;
 585
 586         /* setup header fields */
 587         memcpy(hdr.sig, block->sig, 4);
 588         hdr.addr = HOST_TO_LE32(block->addr);
 589         hdr.size = HOST_TO_LE32(block->size - block->size_hdr - block->size_csum);
 590
 591         DBG(1,"writing header for block");
 592         res = write_out_data(outfile, (uint8_t *)&hdr, sizeof(hdr),NULL);
 593         return res;
 594
 595 }
 596
 597
 598 int
 599 block_writeout_file(FILE *outfile, struct csys_block *block)
 600 {
 601         char buf[FILE_BUF_LEN];
 602         size_t buflen = sizeof(buf);
 603         FILE *f;
 604         size_t len;
 605         int res;
 606
 607         if (block->file_name == NULL)
 608                 return 0;
 609
 610         if (block->file_size == 0)
 611                 return 0;
 612
 613         errno = 0;
 614         f = fopen(block->file_name,"r");
 615         if (errno) {
 616                 ERRS("unable to open file: %s", block->file_name);
 617                 return ERR_FATAL;
 618         }
 619
 620         len = block->file_size;
 621         while (len > 0) {
 622                 if (len < buflen)
 623                         buflen = len;
 624
 625                 /* read data from source file */
 626                 errno = 0;
 627                 fread(buf, buflen, 1, f);
 628                 if (errno != 0) {
 629                         ERRS("unable to read from file: %s", block->file_name);
 630                         res = ERR_FATAL;
 631                         break;
 632                 }
 633
 634                 res = write_out_data(outfile, buf, buflen, block->css);
 635                 if (res)
 636                         break;
 637
 638                 len -= buflen;
 639         }
 640
 641         fclose(f);
 642         return res;
 643 }
 644
 645
 646 int
 647 block_writeout_data(FILE *outfile, struct csys_block *block)
 648 {
 649         int res;
 650         size_t padlen;
 651
 652         res = block_writeout_file(outfile, block);
 653         if (res)
 654                 return res;
 655
 656         /* write padding data if neccesary */
 657         padlen = block->size_avail - block->file_size;
 658         DBG(1,"padding block, length=%zu", padlen);
 659         res = write_out_padding(outfile, padlen, block->padc, block->css);
 660
 661         return res;
 662 }
 663
 664
 665 int
 666 block_writeout_csum(FILE *outfile, struct csys_block *block)
 667 {
 668         uint16_t csum;
 669         int res;
 670
 671         if (block->size_csum == 0)
 672                 return 0;
 673
 674         DBG(1,"writing checksum for block");
 675         csum = HOST_TO_LE16(csum_get(block->css));
 676         res = write_out_data(outfile, (uint8_t *)&csum, block->size_csum, NULL);
 677
 678         return res;
 679 }
 680
 681
 682 int
 683 block_writeout(FILE *outfile, struct csys_block *block)
 684 {
 685         int res;
 686         struct csum_state css;
 687
 688         res = 0;
 689
 690         if (block == NULL)
 691                 return res;
 692
 693         block->css = NULL;
 694
 695         DBG(2, "writing block, file=%s, file_size=%d, space=%d",
 696                 block->file_name, block->file_size, block->size_avail);
 697         res = block_writeout_hdr(outfile, block);
 698         if (res)
 699                 return res;
 700
 701         if (block->size_csum != 0) {
 702                 block->css = &css;
 703                 csum_init(&css, block->size_csum);
 704         }
 705
 706         res = block_writeout_data(outfile, block);
 707         if (res)
 708                 return res;
 709
 710         res = block_writeout_csum(outfile, block);
 711         if (res)
 712                 return res;
 713
 714         return res;
 715 }
 716
 717
 718 int
 719 write_out_blocks(FILE *outfile)
 720 {
 721         struct csys_block *block;
 722         int i, res;
 723
 724         res = block_writeout(outfile, boot_block);
 725         if (res)
 726                 return res;
 727
 728         res = block_writeout(outfile, conf_block);
 729         if (res)
 730                 return res;
 731
 732         res = block_writeout(outfile, webp_block);
 733         if (res)
 734                 return res;
 735
 736         res = block_writeout(outfile, code_block);
 737         if (res)
 738                 return res;
 739
 740         res = 0;
 741         for (i=0; i < num_blocks; i++) {
 742                 block = &blocks[i];
 743
 744                 if (block->type != BLOCK_TYPE_XTRA)
 745                         continue;
 746
 747                 res = block_writeout(outfile, block);
 748                 if (res)
 749                         break;
 750         }
 751
 752         return res;
 753 }
 754
 755
 756 struct board_info *
 757 find_board(char *model)
 758 {
 759         struct board_info *ret;
 760         struct board_info *board;
 761
 762         ret = NULL;
 763         for (board = boards; board->model != NULL; board++){
 764                 if (strcasecmp(model, board->model) == 0) {
 765                         ret = board;
 766                         break;
 767                 }
 768         };
 769
 770         return ret;
 771 }
 772
 773
 774 int
 775 parse_opt_board(char ch, char *arg)
 776 {
 777
 778         DBG(1,"parsing board option: -%c %s", ch, arg);
 779
 780         if (board != NULL) {
 781                 ERR("only one board option allowed");
 782                 return ERR_FATAL;
 783         }
 784
 785         if (required_arg(ch, arg))
 786                 return ERR_FATAL;
 787
 788         board = find_board(arg);
 789         if (board == NULL){
 790                 ERR("invalid/unknown board specified: %s", arg);
 791                 return ERR_FATAL;
 792         }
 793
 794         return 0;
 795 }
 796
 797
 798 int
 799 parse_opt_block(char ch, char *arg)
 800 {
 801         char buf[MAX_ARG_LEN];
 802         char *argv[MAX_ARG_COUNT];
 803         char *p;
 804         struct csys_block *block;
 805         int i;
 806
 807         if ( num_blocks > MAX_NUM_BLOCKS ) {
 808                 ERR("too many blocks specified");
 809                 return ERR_FATAL;
 810         }
 811
 812         block = &blocks[num_blocks];
 813
 814         /* setup default field values */
 815         block->need_file = 1;
 816         block->padc = 0xFF;
 817
 818         switch (ch) {
 819         case 'b':
 820                 if (boot_block) {
 821                         WARN("only one boot block allowed");
 822                         break;
 823                 }
 824                 block->type = BLOCK_TYPE_BOOT;
 825                 boot_block = block;
 826                 break;
 827         case 'c':
 828                 if (conf_block) {
 829                         WARN("only one config block allowed");
 830                         break;
 831                 }
 832                 block->type = BLOCK_TYPE_CONF;
 833                 conf_block = block;
 834                 break;
 835         case 'w':
 836                 if (webp_block) {
 837                         WARN("only one web block allowed");
 838                         break;
 839                 }
 840                 block->type = BLOCK_TYPE_WEBP;
 841                 block->size_hdr = sizeof(struct csys_header);
 842                 block->size_csum = CSUM_SIZE_8;
 843                 block->need_file = 0;
 844                 webp_block = block;
 845                 break;
 846         case 'r':
 847                 if (code_block) {
 848                         WARN("only one runtime block allowed");
 849                         break;
 850                 }
 851                 block->type = BLOCK_TYPE_CODE;
 852                 block->size_hdr = sizeof(struct csys_header);
 853                 block->size_csum = CSUM_SIZE_16;
 854                 code_block = block;
 855                 break;
 856         case 'x':
 857                 block->type = BLOCK_TYPE_XTRA;
 858                 break;
 859         default:
 860                 ERR("unknown block type \"%c\"", ch);
 861                 return ERR_FATAL;
 862         }
 863
 864         parse_arg(arg, buf, argv);
 865
 866         i = 0;
 867         p = argv[i++];
 868         if (!is_empty_arg(p)) {
 869                 block->file_name = strdup(p);
 870                 if (block->file_name == NULL) {
 871                         ERR("not enough memory");
 872                         return ERR_FATAL;
 873                 }
 874         } else if (block->need_file){
 875                 ERR("no file specified in %s", arg);
 876                 return ERR_FATAL;
 877         }
 878
 879         if (block->size_hdr) {
 880                 p = argv[i++];
 881                 if (!is_empty_arg(p)) {
 882                         if (str2u32(p, &block->addr) != 0) {
 883                                 ERR("invalid start address in %s", arg);
 884                                 return ERR_FATAL;
 885                         }
 886                         block->addr_set = 1;
 887                 }
 888         }
 889
 890         p = argv[i++];
 891         if (!is_empty_arg(p)) {
 892                 if (str2u32(p, &block->align) != 0) {
 893                         ERR("invalid alignment value in %s", arg);
 894                         return ERR_FATAL;
 895                 }
 896                 block->align_set = 1;
 897         }
 898
 899         p = argv[i++];
 900         if (!is_empty_arg(p) && (str2u8(p, &block->padc) != 0)) {
 901                 ERR("invalid paddig character in %s", arg);
 902                 return ERR_FATAL;
 903         }
 904
 905         num_blocks++;
 906
 907         return 0;
 908 }
 909
 910
 911 int
 912 process_blocks(void)
 913 {
 914         struct csys_block *block;
 915         uint32_t offs = 0;
 916         int i;
 917         int res;
 918
 919         res = 0;
 920         /* collecting stats */
 921         for (i = 0; i < num_blocks; i++) {
 922                 block = &blocks[i];
 923                 res = block_stat_file(block);
 924                 if (res)
 925                         return res;
 926         }
 927
 928         /* bootloader */
 929         block = boot_block;
 930         if (block) {
 931                 block->size = board->boot_size;
 932                 if (block->file_size > board->boot_size) {
 933                         WARN("boot block is too big");
 934                         res = ERR_INVALID_IMAGE;
 935                 }
 936         }
 937         offs += board->boot_size;
 938
 939         /* configuration data */
 940         block = conf_block;
 941         if (block) {
 942                 block->size = board->conf_size;
 943                 if (block->file_size > board->conf_size) {
 944                         WARN("config block is too big");
 945                         res = ERR_INVALID_IMAGE;
 946                 }
 947         }
 948         offs += board->conf_size;
 949
 950         /* webpages */
 951         block = webp_block;
 952         if (block) {
 953
 954                 memcpy(block->sig, board->sig_webp, 4);
 955
 956                 if (block->addr_set == 0)
 957                         block->addr = board->addr_webp;
 958
 959                 if (block->align_set == 0)
 960                         block->align = DEFAULT_BLOCK_ALIGN;
 961
 962                 block->size = align(offs + block->file_size + block->size_hdr +
 963                                 block->size_csum, block->align) - offs;
 964
 965                 if (block->size > board->webp_size_max) {
 966                         WARN("webpages block is too big");
 967                         res = ERR_INVALID_IMAGE;
 968                 }
 969
 970                 DBG(2,"webpages start at %08x, size=%08x", offs,
 971                                 block->size);
 972
 973                 offs += block->size;
 974                 if (offs > board->flash_size) {
 975                         WARN("webp block is too big");
 976                         res = ERR_INVALID_IMAGE;
 977                 }
 978         }
 979
 980         /* runtime code */
 981         block = code_block;
 982         if (block) {
 983                 memcpy(code_block->sig, SIG_CSYS, 4);
 984
 985                 if (block->addr_set == 0)
 986                         block->addr = board->addr_code;
 987
 988                 if (block->align_set == 0)
 989                         block->align = DEFAULT_BLOCK_ALIGN;
 990
 991                 block->size = align(offs + block->file_size +
 992                                 block->size_hdr + block->size_csum,
 993                                 block->align) - offs;
 994
 995                 DBG(2,"code block start at %08x, size=%08x", offs,
 996                                 block->size);
 997
 998                 offs += block->size;
 999                 if (offs > board->flash_size) {
1000                         WARN("code block is too big");
1001                         res = ERR_INVALID_IMAGE;
1002                 }
1003         }
1004
1005         for (i = 0; i < num_blocks; i++) {
1006                 block = &blocks[i];
1007
1008                 if (block->type != BLOCK_TYPE_XTRA)
1009                         continue;
1010
1011                 if (block->align_set == 0)
1012                         block->align = DEFAULT_BLOCK_ALIGN;
1013
1014                 block->size = align(offs + block->file_size,
1015                                 block->align) - offs;
1016
1017                 DBG(2,"file %s start at %08x, size=%08x, align=%08x",
1018                         block->file_name, offs, block->size, block->align);
1019
1020                 offs += block->size;
1021                 if (offs > board->flash_size) {
1022                         WARN("file %s is too big, size=%d, avail=%d",
1023                                 block->file_name, block->file_size,
1024                                 board->flash_size - offs);
1025                         res = ERR_INVALID_IMAGE;
1026                 }
1027         }
1028
1029         for (i = 0; i < num_blocks; i++) {
1030                 block = &blocks[i];
1031
1032                 block->size_avail = block->size - block->size_hdr -
1033                         block->size_csum;
1034
1035                 if (block->size_avail < block->file_size) {
1036                         WARN("file %s is too big, size=%d, avail=%d",
1037                                 block->file_name, block->file_size,
1038                                 block->size_avail);
1039                         res = ERR_INVALID_IMAGE;
1040                 }
1041         }
1042
1043         return res;
1044 }
1045
1046
1047 int
1048 main(int argc, char *argv[])
1049 {
1050         int optinvalid = 0;   /* flag for invalid option */
1051         int c;
1052         int res = ERR_FATAL;
1053
1054         FILE *outfile;
1055
1056         progname=basename(argv[0]);
1057
1058         opterr = 0;  /* could not print standard getopt error messages */
1059         while ( 1 ) {
1060                 optinvalid = 0;
1061
1062                 c = getopt(argc, argv, "b:B:c:dhkr:vw:x:");
1063                 if (c == -1)
1064                         break;
1065
1066                 switch (c) {
1067                 case 'b':
1068                 case 'c':
1069                 case 'r':
1070                 case 'x':
1071                         optinvalid = parse_opt_block(c,optarg);
1072                         break;
1073                 case 'w':
1074                         if (optarg != NULL && *optarg == '-') {
1075                                 /* rollback */
1076                                 optind--;
1077                                 optarg = NULL;
1078                         }
1079                         optinvalid = parse_opt_block(c,optarg);
1080                         break;
1081                 case 'd':
1082                         invalid_causes_error = 0;
1083                         break;
1084                 case 'k':
1085                         keep_invalid_images = 1;
1086                         break;
1087                 case 'B':
1088                         optinvalid = parse_opt_board(c,optarg);
1089                         break;
1090                 case 'v':
1091                         verblevel++;
1092                         break;
1093                 case 'h':
1094                         usage(EXIT_SUCCESS);
1095                         break;
1096                 default:
1097                         optinvalid = 1;
1098                         break;
1099                 }
1100                 if (optinvalid != 0 ){
1101                         ERR("invalid option: -%c", optopt);
1102                         goto out;
1103                 }
1104         }
1105
1106         if (board == NULL) {
1107                 ERR("no board specified");
1108                 goto out;
1109         }
1110
1111         if (optind == argc) {
1112                 ERR("no output file specified");
1113                 goto out;
1114         }
1115
1116         ofname = argv[optind++];
1117
1118         if (optind < argc) {
1119                 ERR("invalid option: %s", argv[optind]);
1120                 goto out;
1121         }
1122
1123         res = process_blocks();
1124         if (res == ERR_FATAL)
1125                 goto out;
1126
1127         if (res == ERR_INVALID_IMAGE) {
1128                 if (invalid_causes_error)
1129                         res = ERR_FATAL;
1130
1131                 if (keep_invalid_images == 0) {
1132                         WARN("generation of invalid images \"%s\" disabled", ofname);
1133                         goto out;
1134                 }
1135
1136                 WARN("generating invalid image: \"%s\"", ofname);
1137         }
1138
1139         outfile = fopen(ofname, "w");
1140         if (outfile == NULL) {
1141                 ERRS("could not open \"%s\" for writing", ofname);
1142                 res = ERR_FATAL;
1143                 goto out;
1144         }
1145
1146         if (write_out_blocks(outfile) != 0) {
1147                 res = ERR_FATAL;
1148                 goto out_flush;
1149         }
1150
1151         DBG(1,"Image file %s completed.", ofname);
1152
1153 out_flush:
1154         fflush(outfile);
1155         fclose(outfile);
1156         if (res == ERR_FATAL) {
1157                 unlink(ofname);
1158         }
1159 out:
1160         if (res == ERR_FATAL)
1161                 return EXIT_FAILURE;
1162
1163         return EXIT_SUCCESS;
1164 }