tools/firmware-utils/src/mkzynfw.c

   1 /*
   2  *  $Id$
   3  *
   4  *  Copyright (C) 2007 OpenWrt.org
   5  *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
   6  *
   7  *  This code was based on the information of the ZyXEL's firmware
   8  *  image format written by Kolja Waschk, can be found at:
   9  *  http://www.ixo.de/info/zyxel_uclinux
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License version 2 as published
  13  *  by the Free Software Foundation.
  14  *
  15  */
  16
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19 #include <stdint.h>
  20 #include <string.h>
  21 #include <unistd.h>     /* for unlink() */
  22 #include <libgen.h>
  23 #include <getopt.h>     /* for getopt() */
  24 #include <stdarg.h>
  25 #include <errno.h>
  26 #include <sys/stat.h>
  27 #include <endian.h>     /* for __BYTE_ORDER */
  28 #if defined(__CYGWIN__)
  29 #  include <byteswap.h>
  30 #endif
  31
  32 #include "zynos.h"
  33
  34 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  35 #  define HOST_TO_LE16(x)       (x)
  36 #  define HOST_TO_LE32(x)       (x)
  37 #  define LE16_TO_HOST(x)       (x)
  38 #  define LE32_TO_HOST(x)       (x)
  39 #  define HOST_TO_BE16(x)       bswap_16(x)
  40 #  define HOST_TO_BE32(x)       bswap_32(x)
  41 #  define BE16_TO_HOST(x)       bswap_16(x)
  42 #  define BE32_TO_HOST(x)       bswap_32(x)
  43 #else
  44 #  define HOST_TO_BE16(x)       (x)
  45 #  define HOST_TO_BE32(x)       (x)
  46 #  define BE16_TO_HOST(x)       (x)
  47 #  define BE32_TO_HOST(x)       (x)
  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 ALIGN(x,y)      (((x)+((y)-1)) & ~((y)-1))
  55
  56 #define MAX_NUM_BLOCKS  8
  57 #define MAX_ARG_COUNT   32
  58 #define MAX_ARG_LEN     1024
  59 #define FILE_BUF_LEN    (16*1024)
  60
  61
  62 struct csum_state{
  63         int             odd;
  64         uint32_t        sum;
  65         uint32_t        tmp;
  66 };
  67
  68 struct fw_block {
  69         uint32_t        align;          /* alignment of this block */
  70         char            *file_name;     /* name of the file */
  71         uint32_t        file_size;      /* length of the file */
  72         char            *mmap_name;     /* name in the MMAP table */
  73         int             type;           /* block type */
  74         uint32_t        padlen;
  75         uint8_t         padc;
  76 };
  77
  78 #define BLOCK_TYPE_BOOTEXT      0
  79 #define BLOCK_TYPE_RAW          1
  80
  81 struct fw_mmap {
  82         uint32_t        addr;
  83         uint32_t        size;
  84         uint32_t        user_addr;
  85         uint32_t        user_size;
  86 };
  87 #define MMAP_DATA_SIZE  1024
  88 #define MMAP_ALIGN      16
  89
  90 struct board_info {
  91         char *name;             /* model name */
  92         char *desc;             /* description */
  93         uint16_t vendor;        /* vendor id */
  94         uint16_t model;         /* model id */
  95         uint32_t flash_base;    /* flash base address */
  96         uint32_t flash_size;    /* board flash size */
  97         uint32_t code_start;    /* code start address */
  98         uint32_t fw_offs;       /* offset of the firmware within the flash */
  99 };
 100
 101 /*
 102  * Globals
 103  */
 104 char *progname;
 105 char *ofname = NULL;
 106 int verblevel = 0;
 107
 108 struct board_info *board = NULL;
 109
 110 struct fw_block blocks[MAX_NUM_BLOCKS];
 111 struct fw_block *bootext_block = NULL;
 112 int num_blocks = 0;
 113
 114 #define ADM5120_FLASH_BASE      0xBFC00000
 115 #define ADM5120_CODE_START      0x80008000
 116
 117 /* TODO: check values for AR7 */
 118 #define AR7_FLASH_BASE          0xB0000000
 119 #define AR7_CODE_START          0x94008000
 120
 121 #define ATHEROS_FLASH_BASE      0xBFC00000
 122 #define ATHEROS_CODE_START      0x80e00000
 123
 124 #define BOARD(n, d, v, m, fb, fs, cs, fo) { \
 125         .name = (n), .desc=(d), \
 126         .vendor = (v), .model = (m), \
 127         .flash_base = (fb), .flash_size = (fs)<<20, \
 128         .code_start = (cs), .fw_offs = (fo) \
 129         }
 130
 131 #define ADMBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 132         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x8000)
 133
 134 #define ADMBOARD2(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 135         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x10000)
 136
 137 #define AR7BOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 138         AR7_FLASH_BASE, fs, AR7_CODE_START, 0x8000)
 139
 140 #define ATHEROSBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 141         ATHEROS_FLASH_BASE, fs, ATHEROS_CODE_START, 0x8000)
 142
 143 static struct board_info boards[] = {
 144         /*
 145          * Infineon/ADMtek ADM5120 based boards
 146          */
 147         ADMBOARD2("ES-2024A",   "ZyXEL ES-2024A", ZYNOS_MODEL_ES_2024A, 4),
 148         ADMBOARD2("ES-2024PWR", "ZyXEL ES-2024PWR", ZYNOS_MODEL_ES_2024PWR, 4),
 149         ADMBOARD2("ES-2108",    "ZyXEL ES-2108", ZYNOS_MODEL_ES_2108, 4),
 150         ADMBOARD2("ES-2108-F",  "ZyXEL ES-2108-F", ZYNOS_MODEL_ES_2108_F, 4),
 151         ADMBOARD2("ES-2108-G",  "ZyXEL ES-2108-G", ZYNOS_MODEL_ES_2108_G, 4),
 152         ADMBOARD2("ES-2108-LC", "ZyXEL ES-2108-LC", ZYNOS_MODEL_ES_2108_LC, 4),
 153         ADMBOARD2("ES-2108PWR", "ZyXEL ES-2108PWR", ZYNOS_MODEL_ES_2108PWR, 4),
 154         ADMBOARD1("HS-100",     "ZyXEL HomeSafe 100", ZYNOS_MODEL_HS_100, 2),
 155         ADMBOARD1("HS-100W",    "ZyXEL HomeSafe 100W", ZYNOS_MODEL_HS_100W, 2),
 156         ADMBOARD1("P-334",      "ZyXEL Prestige 334", ZYNOS_MODEL_P_334, 2),
 157         ADMBOARD1("P-334U",     "ZyXEL Prestige 334U", ZYNOS_MODEL_P_334U, 4),
 158         ADMBOARD1("P-334W",     "ZyXEL Prestige 334W", ZYNOS_MODEL_P_334W, 2),
 159         ADMBOARD1("P-334WH",    "ZyXEL Prestige 334WH", ZYNOS_MODEL_P_334WH, 4),
 160         ADMBOARD1("P-334WHD",   "ZyXEL Prestige 334WHD", ZYNOS_MODEL_P_334WHD, 4),
 161         ADMBOARD1("P-334WT",    "ZyXEL Prestige 334WT", ZYNOS_MODEL_P_334WT, 4),
 162         ADMBOARD1("P-335",      "ZyXEL Prestige 335", ZYNOS_MODEL_P_335, 4),
 163         ADMBOARD1("P-335Plus",  "ZyXEL Prestige 335Plus", ZYNOS_MODEL_P_335PLUS, 4),
 164         ADMBOARD1("P-335U",     "ZyXEL Prestige 335U", ZYNOS_MODEL_P_335U, 4),
 165         ADMBOARD1("P-335WT",    "ZyXEL Prestige 335WT", ZYNOS_MODEL_P_335WT, 4),
 166
 167 #if 0
 168         /*
 169          * Texas Instruments AR7 based boards
 170          */
 171         AR7BOARD1("P-660H-61",  "ZyXEL P-660H-61", ZYNOS_MODEL_P_660H_61, 2),
 172         AR7BOARD1("P-660H-63",  "ZyXEL P-660H-63", ZYNOS_MODEL_P_660H_63, 2),
 173         AR7BOARD1("P-660H-D1",  "ZyXEL P-660H-D1", ZYNOS_MODEL_P_660H_D1, 2),
 174         AR7BOARD1("P-660H-D3",  "ZyXEL P-660H-D3", ZYNOS_MODEL_P_660H_D3, 2),
 175         AR7BOARD1("P-660HW-61", "ZyXEL P-660HW-61", ZYNOS_MODEL_P_660HW_61, 2),
 176         AR7BOARD1("P-660HW-63", "ZyXEL P-660HW-63", ZYNOS_MODEL_P_660HW_63, 2),
 177         AR7BOARD1("P-660HW-67", "ZyXEL P-660HW-67", ZYNOS_MODEL_P_660HW_67, 2),
 178         AR7BOARD1("P-660HW-D1", "ZyXEL P-660HW-D1", ZYNOS_MODEL_P_660HW_D1, 2),
 179         AR7BOARD1("P-660HW-D3", "ZyXEL P-660HW-D3", ZYNOS_MODEL_P_660HW_D3, 2),
 180         AR7BOARD1("P-660R-61",  "ZyXEL P-660R-61", ZYNOS_MODEL_P_660R_61, 2),
 181         AR7BOARD1("P-660R-61C", "ZyXEL P-660R-61C", ZYNOS_MODEL_P_660R_61C, 2),
 182         AR7BOARD1("P-660R-63",  "ZyXEL P-660R-63", ZYNOS_MODEL_P_660R_63, 2),
 183         AR7BOARD1("P-660R-63C", "ZyXEL P-660R-63C", ZYNOS_MODEL_P_660R_63C, 2),
 184         AR7BOARD1("P-660R-67",  "ZyXEL P-660R-67", ZYNOS_MODEL_P_660R_67, 2),
 185         AR7BOARD1("P-660R-D1",  "ZyXEL P-660R-D1", ZYNOS_MODEL_P_660R_D1, 2),
 186         AR7BOARD1("P-660R-D3",  "ZyXEL P-660R-D3", ZYNOS_MODEL_P_660R_D3, 2),
 187 #endif
 188         {
 189                 .name           = "O2SURF",
 190                 .desc           = "O2 DSL Surf & Phone",
 191                 .vendor         = ZYNOS_VENDOR_ID_O2,
 192                 .model          = ZYNOS_MODEL_O2SURF,
 193                 .flash_base     = AR7_FLASH_BASE,
 194                 .flash_size     = 8*1024*1024,
 195                 .code_start     = 0x94014000,
 196                 .fw_offs        = 0x40000,
 197         },
 198
 199         /*
 200 :x
 201          */
 202         ATHEROSBOARD1("NBG-318S", "ZyXEL NBG-318S", ZYNOS_MODEL_NBG_318S, 4),
 203
 204         {.name = NULL}
 205 };
 206
 207 /*
 208  * Message macros
 209  */
 210 #define ERR(fmt, ...) do { \
 211         fflush(0); \
 212         fprintf(stderr, "[%s] *** error: " fmt "\n", \
 213                         progname, ## __VA_ARGS__ ); \
 214 } while (0)
 215
 216 #define ERRS(fmt, ...) do { \
 217         int save = errno; \
 218         fflush(0); \
 219         fprintf(stderr, "[%s] *** error: " fmt ", %s\n", \
 220                         progname, ## __VA_ARGS__, strerror(save)); \
 221 } while (0)
 222
 223 #define WARN(fmt, ...) do { \
 224         fprintf(stderr, "[%s] *** warning: " fmt "\n", \
 225                         progname, ## __VA_ARGS__ ); \
 226 } while (0)
 227
 228 #define DBG(lev, fmt, ...) do { \
 229         if (verblevel < lev) \
 230                 break;\
 231         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 232 } while (0)
 233
 234 #define ERR_FATAL               -1
 235 #define ERR_INVALID_IMAGE       -2
 236
 237 /*
 238  * Helper routines
 239  */
 240 void
 241 usage(int status)
 242 {
 243         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 244         struct board_info *board;
 245
 246         fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
 247         fprintf(stream,
 248 "\n"
 249 "Options:\n"
 250 "  -B <board>      create image for the board specified with <board>.\n"
 251 "                  valid <board> values:\n"
 252         );
 253         for (board = boards; board->name != NULL; board++){
 254                 fprintf(stream,
 255 "                    %-12s= %s\n",
 256                  board->name, board->desc);
 257         };
 258         fprintf(stream,
 259 "  -b <file>[:<align>]\n"
 260 "                  add boot extension block to the image\n"
 261 "  -r <file>[:<align>]\n"
 262 "                  add raw block to the image\n"
 263 "  -o <file>       write output to the file <file>\n"
 264 "  -h              show this screen\n"
 265         );
 266
 267         exit(status);
 268 }
 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 -1;
 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 csum_init(struct csum_state *css)
 407 {
 408         css->odd = 0;
 409         css->sum = 0;
 410         css->tmp = 0;
 411 }
 412
 413
 414 void
 415 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 416 {
 417         if (len == 0)
 418                 return;
 419
 420         if (css->odd) {
 421                 css->sum += (css->tmp << 8) + p[0];
 422                 if (css->sum > 0xFFFF) {
 423                         css->sum += 1;
 424                         css->sum &= 0xFFFF;
 425                 }
 426                 css->odd = 0;
 427                 len--;
 428                 p++;
 429         }
 430
 431         for ( ; len > 1; len -= 2, p +=2 ) {
 432                 css->sum  += (p[0] << 8) + p[1];
 433                 if (css->sum > 0xFFFF) {
 434                         css->sum += 1;
 435                         css->sum &= 0xFFFF;
 436                 }
 437         }
 438
 439         if (len == 1){
 440                 css->tmp = p[0];
 441                 css->odd = 1;
 442         }
 443 }
 444
 445
 446 uint16_t
 447 csum_get(struct csum_state *css)
 448 {
 449         char pad = 0;
 450
 451         csum_update(&pad, 1, css);
 452         return css->sum;
 453 }
 454
 455 uint16_t
 456 csum_buf(uint8_t *p, uint32_t len)
 457 {
 458         struct csum_state css;
 459
 460         csum_init(&css);
 461         csum_update(p, len, &css);
 462         return csum_get(&css);
 463
 464 }
 465
 466 /*
 467  * routines to write data to the output file
 468  */
 469 int
 470 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 471                 struct csum_state *css)
 472 {
 473         errno = 0;
 474
 475         fwrite(data, len, 1, outfile);
 476         if (errno) {
 477                 ERR("unable to write output file");
 478                 return -1;
 479         }
 480
 481         if (css) {
 482                 csum_update(data, len, css);
 483         }
 484
 485         return 0;
 486 }
 487
 488
 489 int
 490 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 491                  struct csum_state *css)
 492 {
 493         uint8_t buf[512];
 494         size_t buflen = sizeof(buf);
 495
 496         memset(buf, padc, buflen);
 497         while (len > 0) {
 498                 if (len < buflen)
 499                         buflen = len;
 500
 501                 if (write_out_data(outfile, buf, buflen, css))
 502                         return -1;
 503
 504                 len -= buflen;
 505         }
 506
 507         return 0;
 508 }
 509
 510
 511 int
 512 write_out_data_align(FILE *outfile, uint8_t *data, size_t len, size_t align,
 513                 struct csum_state *css)
 514 {
 515         size_t padlen;
 516         int res;
 517
 518         res = write_out_data(outfile, data, len, css);
 519         if (res)
 520                 return res;
 521
 522         padlen = ALIGN(len,align) - len;
 523         res = write_out_padding(outfile, padlen, 0xFF, css);
 524
 525         return res;
 526 }
 527
 528
 529 int
 530 write_out_header(FILE *outfile, struct zyn_rombin_hdr *hdr)
 531 {
 532         struct zyn_rombin_hdr t;
 533
 534         errno = 0;
 535         if (fseek(outfile, 0, SEEK_SET) != 0) {
 536                 ERRS("fseek failed on output file");
 537                 return -1;
 538         }
 539
 540         /* setup temporary header fields */
 541         memset(&t, 0, sizeof(t));
 542         t.addr = HOST_TO_BE32(hdr->addr);
 543         memcpy(&t.sig, ROMBIN_SIGNATURE, ROMBIN_SIG_LEN);
 544         t.type = hdr->type;
 545         t.flags = hdr->flags;
 546         t.osize = HOST_TO_BE32(hdr->osize);
 547         t.csize = HOST_TO_BE32(hdr->csize);
 548         t.ocsum = HOST_TO_BE16(hdr->ocsum);
 549         t.ccsum = HOST_TO_BE16(hdr->ccsum);
 550         t.mmap_addr = HOST_TO_BE32(hdr->mmap_addr);
 551
 552         return write_out_data(outfile, (uint8_t *)&t, sizeof(t), NULL);
 553 }
 554
 555
 556 int
 557 write_out_mmap(FILE *outfile, struct fw_mmap *mmap, struct csum_state *css)
 558 {
 559         struct zyn_mmt_hdr *mh;
 560         uint8_t buf[MMAP_DATA_SIZE];
 561         uint32_t user_size;
 562         char *data;
 563         int res;
 564
 565         memset(buf, 0, sizeof(buf));
 566
 567         mh = (struct zyn_mmt_hdr *)buf;
 568
 569         /* TODO: needs to recreate the memory map too? */
 570         mh->count=0;
 571
 572         /* Build user data section */
 573         data = buf+sizeof(*mh);
 574         data += sprintf(data, "Vendor 1 %d", board->vendor);
 575         *data++ = '\0';
 576         data += sprintf(data, "Model 1 %d", BE16_TO_HOST(board->model));
 577         *data++ = '\0';
 578         /* TODO: make hardware version configurable? */
 579         data += sprintf(data, "HwVerRange 2 %d %d", 0, 0);
 580         *data++ = '\0';
 581
 582         user_size = (uint8_t *)data - buf;
 583         mh->user_start= HOST_TO_BE32(mmap->addr+sizeof(*mh));
 584         mh->user_end= HOST_TO_BE32(mmap->addr+user_size);
 585         mh->csum = HOST_TO_BE16(csum_buf(buf+sizeof(*mh), user_size));
 586
 587         res = write_out_data(outfile, buf, sizeof(buf), css);
 588
 589         return res;
 590 }
 591
 592
 593 int
 594 block_stat_file(struct fw_block *block)
 595 {
 596         struct stat st;
 597         int res;
 598
 599         if (block->file_name == NULL)
 600                 return 0;
 601
 602         res = stat(block->file_name, &st);
 603         if (res){
 604                 ERRS("stat failed on %s", block->file_name);
 605                 return res;
 606         }
 607
 608         block->file_size = st.st_size;
 609         return 0;
 610 }
 611
 612
 613 int
 614 write_out_file(FILE *outfile, char *name, size_t len, struct csum_state *css)
 615 {
 616         char buf[FILE_BUF_LEN];
 617         size_t buflen = sizeof(buf);
 618         FILE *f;
 619         int res;
 620
 621         DBG(2, "writing out file, name=%s, len=%d",
 622                 name, len);
 623
 624         errno = 0;
 625         f = fopen(name,"r");
 626         if (errno) {
 627                 ERRS("unable to open file: %s", name);
 628                 return -1;
 629         }
 630
 631         while (len > 0) {
 632                 if (len < buflen)
 633                         buflen = len;
 634
 635                 /* read data from source file */
 636                 errno = 0;
 637                 fread(buf, buflen, 1, f);
 638                 if (errno != 0) {
 639                         ERRS("unable to read from file: %s",name);
 640                         res = -1;
 641                         break;
 642                 }
 643
 644                 res = write_out_data(outfile, buf, buflen, css);
 645                 if (res)
 646                         break;
 647
 648                 len -= buflen;
 649         }
 650
 651         fclose(f);
 652         return res;
 653 }
 654
 655
 656 int
 657 write_out_block(FILE *outfile, struct fw_block *block, struct csum_state *css)
 658 {
 659         int res;
 660
 661         if (block == NULL)
 662                 return 0;
 663
 664         if (block->file_name == NULL)
 665                 return 0;
 666
 667         if (block->file_size == 0)
 668                 return 0;
 669
 670         res = write_out_file(outfile, block->file_name,
 671                         block->file_size, css);
 672         return res;
 673 }
 674
 675
 676 int
 677 write_out_image(FILE *outfile)
 678 {
 679         struct fw_block *block;
 680         struct fw_mmap mmap;
 681         struct zyn_rombin_hdr hdr;
 682         struct csum_state css;
 683         int i, res;
 684         uint32_t offset;
 685         uint32_t padlen;
 686
 687         /* setup header fields */
 688         memset(&hdr, 0, sizeof(hdr));
 689         hdr.addr = board->code_start;
 690         hdr.type = OBJECT_TYPE_BOOTEXT;
 691         hdr.flags = ROMBIN_FLAG_OCSUM;
 692
 693         res = write_out_header(outfile, &hdr);
 694         if (res)
 695                 return res;
 696
 697         offset = sizeof(hdr);
 698
 699         csum_init(&css);
 700         res = write_out_block(outfile, bootext_block, &css);
 701         if (res)
 702                 return res;
 703
 704         offset += bootext_block->file_size;
 705
 706         padlen = ALIGN(offset,MMAP_ALIGN) - offset;
 707         res = write_out_padding(outfile, padlen, 0xFF, &css);
 708         if (res)
 709                 return res;
 710
 711         offset += padlen;
 712
 713         mmap.addr = board->flash_base + board->fw_offs + offset;
 714         hdr.mmap_addr = mmap.addr;
 715         res = write_out_mmap(outfile, &mmap, &css);
 716         if (res)
 717                 return res;
 718
 719         offset += MMAP_DATA_SIZE;
 720         hdr.osize = offset - sizeof(hdr);
 721         hdr.ocsum = csum_get(&css);
 722
 723         for (i=0; i < num_blocks; i++) {
 724                 block = &blocks[i];
 725
 726                 if (block->type == BLOCK_TYPE_BOOTEXT)
 727                         continue;
 728
 729                 padlen = ALIGN(offset,block->align) - offset;
 730                 res = write_out_padding(outfile, padlen, 0xFF, NULL);
 731                 if (res)
 732                         return res;
 733                 offset += padlen;
 734
 735                 res = write_out_block(outfile, block, NULL);
 736                 if (res)
 737                         return res;
 738                 offset += block->file_size;
 739         }
 740
 741         res = write_out_header(outfile, &hdr);
 742
 743         return res;
 744 }
 745
 746
 747 struct board_info *
 748 find_board(char *name)
 749 {
 750         struct board_info *ret;
 751         struct board_info *board;
 752
 753         ret = NULL;
 754         for (board = boards; board->name != NULL; board++){
 755                 if (strcasecmp(name, board->name) == 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 -1;
 774         }
 775
 776         if (required_arg(ch, arg))
 777                 return -1;
 778
 779         board = find_board(arg);
 780         if (board == NULL){
 781                 ERR("invalid/unknown board specified: %s", arg);
 782                 return -1;
 783         }
 784
 785         return 0;
 786 }
 787
 788
 789 int
 790 parse_opt_ofname(char ch, char *arg)
 791 {
 792
 793         if (ofname != NULL) {
 794                 ERR("only one output file allowed");
 795                 return -1;
 796         }
 797
 798         if (required_arg(ch, arg))
 799                 return -1;
 800
 801         ofname = arg;
 802
 803         return 0;
 804 }
 805
 806
 807 int
 808 parse_opt_block(char ch, char *arg)
 809 {
 810         char buf[MAX_ARG_LEN];
 811         char *argv[MAX_ARG_COUNT];
 812         int argc;
 813         char *p;
 814         struct fw_block *block;
 815         int i;
 816
 817         if ( num_blocks >= MAX_NUM_BLOCKS ) {
 818                 ERR("too many blocks specified");
 819                 return -1;
 820         }
 821
 822         block = &blocks[num_blocks++];
 823
 824         /* setup default field values */
 825         block->padc = 0xFF;
 826
 827         switch(ch) {
 828         case 'b':
 829                 if (bootext_block) {
 830                         ERR("only one boot extension block allowed");
 831                         break;
 832                 }
 833                 block->type = BLOCK_TYPE_BOOTEXT;
 834                 bootext_block = block;
 835                 break;
 836         case 'r':
 837                 block->type = BLOCK_TYPE_RAW;
 838                 break;
 839         }
 840
 841         argc = parse_arg(arg, buf, argv);
 842
 843         i = 0;
 844         p = argv[i++];
 845         if (is_empty_arg(p)) {
 846                 ERR("no file specified in %s", arg);
 847                 return -1;
 848         } else {
 849                 block->file_name = strdup(p);
 850                 if (block->file_name == NULL) {
 851                         ERR("not enough memory");
 852                         return -1;
 853                 }
 854         }
 855
 856         if(block->type == BLOCK_TYPE_BOOTEXT)
 857                 return 0;
 858
 859         p = argv[i++];
 860         if (!is_empty_arg(p)) {
 861                 if (str2u32(p, &block->align) != 0) {
 862                         ERR("invalid block align in %s", arg);
 863                         return -1;
 864                 }
 865         }
 866
 867         return 0;
 868 }
 869
 870
 871 int
 872 calc_block_offsets(int type, uint32_t *offset)
 873 {
 874         struct fw_block *block;
 875         uint32_t next_offs;
 876         uint32_t avail;
 877         int i, res;
 878
 879         DBG(1,"calculating block offsets, starting with %lu",
 880                 *offset);
 881
 882         res = 0;
 883         for (i = 0; i < num_blocks; i++) {
 884                 block = &blocks[i];
 885
 886                 if (block->type != type)
 887                         continue;
 888
 889                 next_offs = ALIGN(*offset, block->align);
 890                 avail = board->flash_size - board->fw_offs - next_offs;
 891                 if (next_offs + block->file_size > avail) {
 892                         ERR("file %s is too big, offset = %u, size=%u,"
 893                                 " align = %u", block->file_name,
 894                                 (unsigned)next_offs,
 895                                 (unsigned)block->file_size,
 896                                 (unsigned)block->align);
 897                         res = -1;
 898                         break;
 899                 }
 900
 901                 block->padlen = next_offs - *offset;
 902                 *offset += block->file_size;
 903         }
 904
 905         return res;
 906 }
 907
 908 int
 909 process_blocks(void)
 910 {
 911         struct fw_block *block;
 912         uint32_t offset;
 913         int i;
 914         int res;
 915
 916         /* collecting file stats */
 917         for (i = 0; i < num_blocks; i++) {
 918                 block = &blocks[i];
 919                 res = block_stat_file(block);
 920                 if (res)
 921                         return res;
 922         }
 923
 924         offset = board->fw_offs + bootext_block->file_size;
 925         res = calc_block_offsets(BLOCK_TYPE_RAW, &offset);
 926
 927         return res;
 928 }
 929
 930
 931 int
 932 main(int argc, char *argv[])
 933 {
 934         int optinvalid = 0;   /* flag for invalid option */
 935         int c;
 936         int res = EXIT_FAILURE;
 937
 938         FILE *outfile;
 939
 940         progname=basename(argv[0]);
 941
 942         opterr = 0;  /* could not print standard getopt error messages */
 943         while ( 1 ) {
 944                 optinvalid = 0;
 945
 946                 c = getopt(argc, argv, "b:B:ho:r:v");
 947                 if (c == -1)
 948                         break;
 949
 950                 switch (c) {
 951                 case 'b':
 952                 case 'r':
 953                         optinvalid = parse_opt_block(c,optarg);
 954                         break;
 955                 case 'B':
 956                         optinvalid = parse_opt_board(c,optarg);
 957                         break;
 958                 case 'o':
 959                         optinvalid = parse_opt_ofname(c,optarg);
 960                         break;
 961                 case 'v':
 962                         verblevel++;
 963                         break;
 964                 case 'h':
 965                         usage(EXIT_SUCCESS);
 966                         break;
 967                 default:
 968                         optinvalid = 1;
 969                         break;
 970                 }
 971                 if (optinvalid != 0 ) {
 972                         ERR("invalid option: -%c", optopt);
 973                         goto out;
 974                 }
 975         }
 976
 977         if (board == NULL) {
 978                 ERR("no board specified");
 979                 goto out;
 980         }
 981
 982         if (ofname == NULL) {
 983                 ERR("no output file specified");
 984                 goto out;
 985         }
 986
 987         if (optind < argc) {
 988                 ERR("invalid option: %s", argv[optind]);
 989                 goto out;
 990         }
 991
 992
 993         if (process_blocks() != 0) {
 994                 goto out;
 995         }
 996
 997         outfile = fopen(ofname, "w");
 998         if (outfile == NULL) {
 999                 ERRS("could not open \"%s\" for writing", ofname);
1000                 goto out;
1001         }
1002
1003         if (write_out_image(outfile) != 0)
1004                 goto out_flush;
1005
1006         DBG(1,"Image file %s completed.", ofname);
1007
1008         res = EXIT_SUCCESS;
1009
1010 out_flush:
1011         fflush(outfile);
1012         fclose(outfile);
1013         if (res != EXIT_SUCCESS) {
1014                 unlink(ofname);
1015         }
1016 out:
1017         return res;
1018 }