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