tools/firmware-utils/src/mkzynfw.c

   1 /*
   2  *  $Id$
   3  *
   4  *  Copyright (C) 2007-2008 OpenWrt.org
   5  *  Copyright (C) 2007-2008 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 romio_offs;    /* offset of the firmware within the flash */
  99         uint32_t bootext_size;  /* maximum size of bootext block */
 100 };
 101
 102 /*
 103  * Globals
 104  */
 105 char *progname;
 106 char *ofname = NULL;
 107 int verblevel = 0;
 108
 109 struct board_info *board = NULL;
 110
 111 struct fw_block blocks[MAX_NUM_BLOCKS];
 112 struct fw_block *bootext_block = NULL;
 113 int num_blocks = 0;
 114
 115 #define ADM5120_FLASH_BASE      0xBFC00000
 116 #define ADM5120_CODE_START      0x80008000
 117
 118 /* TODO: check values for AR7 */
 119 #define AR7_FLASH_BASE          0xB0000000
 120 #define AR7_CODE_START          0x94008000
 121
 122 #define ATHEROS_FLASH_BASE      0xBFC00000
 123 #define ATHEROS_CODE_START      0x80e00000
 124
 125 #define BOARD(n, d, v, m, fb, fs, cs, fo) {             \
 126         .name = (n), .desc=(d),                         \
 127         .vendor = (v), .model = (m),                    \
 128         .flash_base = (fb), .flash_size = (fs)<<20,     \
 129         .code_start = (cs), .romio_offs = (fo),         \
 130         .bootext_size = BOOTEXT_DEF_SIZE                \
 131         }
 132
 133 #define ADMBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 134         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x8000)
 135
 136 #define ADMBOARD2(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 137         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x10000)
 138
 139 #define AR7BOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 140         AR7_FLASH_BASE, fs, AR7_CODE_START, 0x8000)
 141
 142 #define ATHEROSBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 143         ATHEROS_FLASH_BASE, fs, ATHEROS_CODE_START, 0x30000)
 144
 145 static struct board_info boards[] = {
 146         /*
 147          * Infineon/ADMtek ADM5120 based boards
 148          */
 149         ADMBOARD2("ES-2024A",   "ZyXEL ES-2024A", ZYNOS_MODEL_ES_2024A, 4),
 150         ADMBOARD2("ES-2024PWR", "ZyXEL ES-2024PWR", ZYNOS_MODEL_ES_2024PWR, 4),
 151         ADMBOARD2("ES-2108",    "ZyXEL ES-2108", ZYNOS_MODEL_ES_2108, 4),
 152         ADMBOARD2("ES-2108-F",  "ZyXEL ES-2108-F", ZYNOS_MODEL_ES_2108_F, 4),
 153         ADMBOARD2("ES-2108-G",  "ZyXEL ES-2108-G", ZYNOS_MODEL_ES_2108_G, 4),
 154         ADMBOARD2("ES-2108-LC", "ZyXEL ES-2108-LC", ZYNOS_MODEL_ES_2108_LC, 4),
 155         ADMBOARD2("ES-2108PWR", "ZyXEL ES-2108PWR", ZYNOS_MODEL_ES_2108PWR, 4),
 156         ADMBOARD1("HS-100",     "ZyXEL HomeSafe 100", ZYNOS_MODEL_HS_100, 2),
 157         ADMBOARD1("HS-100W",    "ZyXEL HomeSafe 100W", ZYNOS_MODEL_HS_100W, 2),
 158         ADMBOARD1("P-334",      "ZyXEL Prestige 334", ZYNOS_MODEL_P_334, 2),
 159         ADMBOARD1("P-334U",     "ZyXEL Prestige 334U", ZYNOS_MODEL_P_334U, 4),
 160         ADMBOARD1("P-334W",     "ZyXEL Prestige 334W", ZYNOS_MODEL_P_334W, 2),
 161         ADMBOARD1("P-334WH",    "ZyXEL Prestige 334WH", ZYNOS_MODEL_P_334WH, 4),
 162         ADMBOARD1("P-334WHD",   "ZyXEL Prestige 334WHD", ZYNOS_MODEL_P_334WHD, 4),
 163         ADMBOARD1("P-334WT",    "ZyXEL Prestige 334WT", ZYNOS_MODEL_P_334WT, 4),
 164         ADMBOARD1("P-335",      "ZyXEL Prestige 335", ZYNOS_MODEL_P_335, 4),
 165         ADMBOARD1("P-335Plus",  "ZyXEL Prestige 335Plus", ZYNOS_MODEL_P_335PLUS, 4),
 166         ADMBOARD1("P-335U",     "ZyXEL Prestige 335U", ZYNOS_MODEL_P_335U, 4),
 167         ADMBOARD1("P-335WT",    "ZyXEL Prestige 335WT", ZYNOS_MODEL_P_335WT, 4),
 168
 169         {
 170                 .name           = "P-2602HW-D1A",
 171                 .desc           = "ZyXEL P-2602HW-D1A",
 172                 .vendor         = ZYNOS_VENDOR_ID_ZYXEL,
 173                 .model          = ZYNOS_MODEL_P_2602HW_D1A,
 174                 .flash_base     = AR7_FLASH_BASE,
 175                 .flash_size     = 4*1024*1024,
 176                 .code_start     = 0x94008000,
 177                 .romio_offs     = 0x20000,
 178                 .bootext_size   = BOOTEXT_DEF_SIZE,
 179         },
 180
 181 #if 0
 182         /*
 183          * Texas Instruments AR7 based boards
 184          */
 185         AR7BOARD1("P-660H-61",  "ZyXEL P-660H-61", ZYNOS_MODEL_P_660H_61, 2),
 186         AR7BOARD1("P-660H-63",  "ZyXEL P-660H-63", ZYNOS_MODEL_P_660H_63, 2),
 187         AR7BOARD1("P-660H-D1",  "ZyXEL P-660H-D1", ZYNOS_MODEL_P_660H_D1, 2),
 188         AR7BOARD1("P-660H-D3",  "ZyXEL P-660H-D3", ZYNOS_MODEL_P_660H_D3, 2),
 189         AR7BOARD1("P-660HW-61", "ZyXEL P-660HW-61", ZYNOS_MODEL_P_660HW_61, 2),
 190         AR7BOARD1("P-660HW-63", "ZyXEL P-660HW-63", ZYNOS_MODEL_P_660HW_63, 2),
 191         AR7BOARD1("P-660HW-67", "ZyXEL P-660HW-67", ZYNOS_MODEL_P_660HW_67, 2),
 192         AR7BOARD1("P-660HW-D1", "ZyXEL P-660HW-D1", ZYNOS_MODEL_P_660HW_D1, 2),
 193         AR7BOARD1("P-660HW-D3", "ZyXEL P-660HW-D3", ZYNOS_MODEL_P_660HW_D3, 2),
 194         AR7BOARD1("P-660R-61",  "ZyXEL P-660R-61", ZYNOS_MODEL_P_660R_61, 2),
 195         AR7BOARD1("P-660R-61C", "ZyXEL P-660R-61C", ZYNOS_MODEL_P_660R_61C, 2),
 196         AR7BOARD1("P-660R-63",  "ZyXEL P-660R-63", ZYNOS_MODEL_P_660R_63, 2),
 197         AR7BOARD1("P-660R-63C", "ZyXEL P-660R-63C", ZYNOS_MODEL_P_660R_63C, 2),
 198         AR7BOARD1("P-660R-67",  "ZyXEL P-660R-67", ZYNOS_MODEL_P_660R_67, 2),
 199         AR7BOARD1("P-660R-D1",  "ZyXEL P-660R-D1", ZYNOS_MODEL_P_660R_D1, 2),
 200         AR7BOARD1("P-660R-D3",  "ZyXEL P-660R-D3", ZYNOS_MODEL_P_660R_D3, 2),
 201 #endif
 202         {
 203                 .name           = "O2SURF",
 204                 .desc           = "O2 DSL Surf & Phone",
 205                 .vendor         = ZYNOS_VENDOR_ID_O2,
 206                 .model          = ZYNOS_MODEL_O2SURF,
 207                 .flash_base     = AR7_FLASH_BASE,
 208                 .flash_size     = 8*1024*1024,
 209                 .code_start     = 0x94014000,
 210                 .romio_offs     = 0x40000,
 211                 .bootext_size   = BOOTEXT_DEF_SIZE,
 212         },
 213
 214         /*
 215 :x
 216          */
 217         ATHEROSBOARD1("NBG-318S", "ZyXEL NBG-318S", ZYNOS_MODEL_NBG_318S, 4),
 218
 219         {.name = NULL}
 220 };
 221
 222 /*
 223  * Message macros
 224  */
 225 #define ERR(fmt, ...) do { \
 226         fflush(0); \
 227         fprintf(stderr, "[%s] *** error: " fmt "\n", \
 228                         progname, ## __VA_ARGS__ ); \
 229 } while (0)
 230
 231 #define ERRS(fmt, ...) do { \
 232         int save = errno; \
 233         fflush(0); \
 234         fprintf(stderr, "[%s] *** error: " fmt ", %s\n", \
 235                         progname, ## __VA_ARGS__, strerror(save)); \
 236 } while (0)
 237
 238 #define WARN(fmt, ...) do { \
 239         fprintf(stderr, "[%s] *** warning: " fmt "\n", \
 240                         progname, ## __VA_ARGS__ ); \
 241 } while (0)
 242
 243 #define DBG(lev, fmt, ...) do { \
 244         if (verblevel < lev) \
 245                 break;\
 246         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 247 } while (0)
 248
 249 #define ERR_FATAL               -1
 250 #define ERR_INVALID_IMAGE       -2
 251
 252 /*
 253  * Helper routines
 254  */
 255 void
 256 usage(int status)
 257 {
 258         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 259         struct board_info *board;
 260
 261         fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
 262         fprintf(stream,
 263 "\n"
 264 "Options:\n"
 265 "  -B <board>      create image for the board specified with <board>.\n"
 266 "                  valid <board> values:\n"
 267         );
 268         for (board = boards; board->name != NULL; board++){
 269                 fprintf(stream,
 270 "                    %-12s= %s\n",
 271                  board->name, board->desc);
 272         };
 273         fprintf(stream,
 274 "  -b <file>[:<align>]\n"
 275 "                  add boot extension block to the image\n"
 276 "  -r <file>[:<align>]\n"
 277 "                  add raw block to the image\n"
 278 "  -o <file>       write output to the file <file>\n"
 279 "  -h              show this screen\n"
 280         );
 281
 282         exit(status);
 283 }
 284
 285
 286 /*
 287  * argument parsing
 288  */
 289 int
 290 str2u32(char *arg, uint32_t *val)
 291 {
 292         char *err = NULL;
 293         uint32_t t;
 294
 295         errno=0;
 296         t = strtoul(arg, &err, 0);
 297         if (errno || (err==arg) || ((err != NULL) && *err)) {
 298                 return -1;
 299         }
 300
 301         *val = t;
 302         return 0;
 303 }
 304
 305
 306 int
 307 str2u16(char *arg, uint16_t *val)
 308 {
 309         char *err = NULL;
 310         uint32_t t;
 311
 312         errno=0;
 313         t = strtoul(arg, &err, 0);
 314         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 315                 return -1;
 316         }
 317
 318         *val = t & 0xFFFF;
 319         return 0;
 320 }
 321
 322 int
 323 str2u8(char *arg, uint8_t *val)
 324 {
 325         char *err = NULL;
 326         uint32_t t;
 327
 328         errno=0;
 329         t = strtoul(arg, &err, 0);
 330         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 331                 return -1;
 332         }
 333
 334         *val = t & 0xFF;
 335         return 0;
 336 }
 337
 338 int
 339 str2sig(char *arg, uint32_t *sig)
 340 {
 341         if (strlen(arg) != 4)
 342                 return -1;
 343
 344         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 345
 346         return 0;
 347 }
 348
 349
 350 int
 351 parse_arg(char *arg, char *buf, char *argv[])
 352 {
 353         int res = 0;
 354         size_t argl;
 355         char *tok;
 356         char **ap = &buf;
 357         int i;
 358
 359         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 360
 361         if ((arg == NULL)) {
 362                 /* no arguments */
 363                 return 0;
 364         }
 365
 366         argl = strlen(arg);
 367         if (argl == 0) {
 368                 /* no arguments */
 369                 return 0;
 370         }
 371
 372         if (argl >= MAX_ARG_LEN) {
 373                 /* argument is too long */
 374                 argl = MAX_ARG_LEN-1;
 375         }
 376
 377         memcpy(buf, arg, argl);
 378         buf[argl] = '\0';
 379
 380         for (i = 0; i < MAX_ARG_COUNT; i++) {
 381                 tok = strsep(ap, ":");
 382                 if (tok == NULL) {
 383                         break;
 384                 }
 385 #if 0
 386                 else if (tok[0] == '\0') {
 387                         break;
 388                 }
 389 #endif
 390                 argv[i] = tok;
 391                 res++;
 392         }
 393
 394         return res;
 395 }
 396
 397
 398 int
 399 required_arg(char c, char *arg)
 400 {
 401         if (arg == NULL || *arg != '-')
 402                 return 0;
 403
 404         ERR("option -%c requires an argument\n", c);
 405         return -1;
 406 }
 407
 408
 409 int
 410 is_empty_arg(char *arg)
 411 {
 412         int ret = 1;
 413         if (arg != NULL) {
 414                 if (*arg) ret = 0;
 415         };
 416         return ret;
 417 }
 418
 419
 420 void
 421 csum_init(struct csum_state *css)
 422 {
 423         css->odd = 0;
 424         css->sum = 0;
 425         css->tmp = 0;
 426 }
 427
 428
 429 void
 430 csum_update(uint8_t *p, uint32_t len, struct csum_state *css)
 431 {
 432         if (len == 0)
 433                 return;
 434
 435         if (css->odd) {
 436                 css->sum += (css->tmp << 8) + p[0];
 437                 if (css->sum > 0xFFFF) {
 438                         css->sum += 1;
 439                         css->sum &= 0xFFFF;
 440                 }
 441                 css->odd = 0;
 442                 len--;
 443                 p++;
 444         }
 445
 446         for ( ; len > 1; len -= 2, p +=2 ) {
 447                 css->sum  += (p[0] << 8) + p[1];
 448                 if (css->sum > 0xFFFF) {
 449                         css->sum += 1;
 450                         css->sum &= 0xFFFF;
 451                 }
 452         }
 453
 454         if (len == 1){
 455                 css->tmp = p[0];
 456                 css->odd = 1;
 457         }
 458 }
 459
 460
 461 uint16_t
 462 csum_get(struct csum_state *css)
 463 {
 464         char pad = 0;
 465
 466         csum_update(&pad, 1, css);
 467         return css->sum;
 468 }
 469
 470 uint16_t
 471 csum_buf(uint8_t *p, uint32_t len)
 472 {
 473         struct csum_state css;
 474
 475         csum_init(&css);
 476         csum_update(p, len, &css);
 477         return csum_get(&css);
 478
 479 }
 480
 481 /*
 482  * routines to write data to the output file
 483  */
 484 int
 485 write_out_data(FILE *outfile, uint8_t *data, size_t len,
 486                 struct csum_state *css)
 487 {
 488         errno = 0;
 489
 490         fwrite(data, len, 1, outfile);
 491         if (errno) {
 492                 ERR("unable to write output file");
 493                 return -1;
 494         }
 495
 496         if (css) {
 497                 csum_update(data, len, css);
 498         }
 499
 500         return 0;
 501 }
 502
 503
 504 int
 505 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 506                  struct csum_state *css)
 507 {
 508         uint8_t buf[512];
 509         size_t buflen = sizeof(buf);
 510
 511         memset(buf, padc, buflen);
 512         while (len > 0) {
 513                 if (len < buflen)
 514                         buflen = len;
 515
 516                 if (write_out_data(outfile, buf, buflen, css))
 517                         return -1;
 518
 519                 len -= buflen;
 520         }
 521
 522         return 0;
 523 }
 524
 525
 526 int
 527 write_out_data_align(FILE *outfile, uint8_t *data, size_t len, size_t align,
 528                 struct csum_state *css)
 529 {
 530         size_t padlen;
 531         int res;
 532
 533         res = write_out_data(outfile, data, len, css);
 534         if (res)
 535                 return res;
 536
 537         padlen = ALIGN(len,align) - len;
 538         res = write_out_padding(outfile, padlen, 0xFF, css);
 539
 540         return res;
 541 }
 542
 543
 544 int
 545 write_out_header(FILE *outfile, struct zyn_rombin_hdr *hdr)
 546 {
 547         struct zyn_rombin_hdr t;
 548
 549         errno = 0;
 550         if (fseek(outfile, 0, SEEK_SET) != 0) {
 551                 ERRS("fseek failed on output file");
 552                 return -1;
 553         }
 554
 555         /* setup temporary header fields */
 556         memset(&t, 0, sizeof(t));
 557         t.addr = HOST_TO_BE32(hdr->addr);
 558         memcpy(&t.sig, ROMBIN_SIGNATURE, ROMBIN_SIG_LEN);
 559         t.type = hdr->type;
 560         t.flags = hdr->flags;
 561         t.osize = HOST_TO_BE32(hdr->osize);
 562         t.csize = HOST_TO_BE32(hdr->csize);
 563         t.ocsum = HOST_TO_BE16(hdr->ocsum);
 564         t.ccsum = HOST_TO_BE16(hdr->ccsum);
 565         t.mmap_addr = HOST_TO_BE32(hdr->mmap_addr);
 566
 567         DBG(2, "hdr.addr      = 0x%08x", hdr->addr);
 568         DBG(2, "hdr.type      = 0x%02x", hdr->type);
 569         DBG(2, "hdr.osize     = 0x%08x", hdr->osize);
 570         DBG(2, "hdr.csize     = 0x%08x", hdr->csize);
 571         DBG(2, "hdr.flags     = 0x%02x", hdr->flags);
 572         DBG(2, "hdr.ocsum     = 0x%04x", hdr->ocsum);
 573         DBG(2, "hdr.ccsum     = 0x%04x", hdr->ccsum);
 574         DBG(2, "hdr.mmap_addr = 0x%08x", hdr->mmap_addr);
 575
 576         return write_out_data(outfile, (uint8_t *)&t, sizeof(t), NULL);
 577 }
 578
 579
 580 int
 581 write_out_mmap(FILE *outfile, struct fw_mmap *mmap, struct csum_state *css)
 582 {
 583         struct zyn_mmt_hdr *mh;
 584         uint8_t buf[MMAP_DATA_SIZE];
 585         uint32_t user_size;
 586         char *data;
 587         int res;
 588
 589         memset(buf, 0, sizeof(buf));
 590
 591         mh = (struct zyn_mmt_hdr *)buf;
 592
 593         /* TODO: needs to recreate the memory map too? */
 594         mh->count=0;
 595
 596         /* Build user data section */
 597         data = buf+sizeof(*mh);
 598         data += sprintf(data, "Vendor 1 %d", board->vendor);
 599         *data++ = '\0';
 600         data += sprintf(data, "Model 1 %d", BE16_TO_HOST(board->model));
 601         *data++ = '\0';
 602         /* TODO: make hardware version configurable? */
 603         data += sprintf(data, "HwVerRange 2 %d %d", 0, 0);
 604         *data++ = '\0';
 605
 606         user_size = (uint8_t *)data - buf;
 607         mh->user_start= HOST_TO_BE32(mmap->addr+sizeof(*mh));
 608         mh->user_end= HOST_TO_BE32(mmap->addr+user_size);
 609         mh->csum = HOST_TO_BE16(csum_buf(buf+sizeof(*mh), user_size));
 610
 611         res = write_out_data(outfile, buf, sizeof(buf), css);
 612
 613         return res;
 614 }
 615
 616
 617 int
 618 block_stat_file(struct fw_block *block)
 619 {
 620         struct stat st;
 621         int res;
 622
 623         if (block->file_name == NULL)
 624                 return 0;
 625
 626         res = stat(block->file_name, &st);
 627         if (res){
 628                 ERRS("stat failed on %s", block->file_name);
 629                 return res;
 630         }
 631
 632         block->file_size = st.st_size;
 633         return 0;
 634 }
 635
 636
 637 int
 638 read_magic(uint16_t *magic)
 639 {
 640         FILE *f;
 641         int res;
 642
 643         errno = 0;
 644         f = fopen(bootext_block->file_name,"r");
 645         if (errno) {
 646                 ERRS("unable to open file: %s", bootext_block->file_name);
 647                 return -1;
 648         }
 649
 650         errno = 0;
 651         fread(magic, 2, 1, f);
 652         if (errno != 0) {
 653                 ERRS("unable to read from file: %s", bootext_block->file_name);
 654                 res = -1;
 655                 goto err;
 656         }
 657
 658         res = 0;
 659
 660 err:
 661         fclose(f);
 662         return res;
 663 }
 664
 665
 666 int
 667 write_out_file(FILE *outfile, char *name, size_t len, struct csum_state *css)
 668 {
 669         char buf[FILE_BUF_LEN];
 670         size_t buflen = sizeof(buf);
 671         FILE *f;
 672         int res;
 673
 674         DBG(2, "writing out file, name=%s, len=%d",
 675                 name, len);
 676
 677         errno = 0;
 678         f = fopen(name,"r");
 679         if (errno) {
 680                 ERRS("unable to open file: %s", name);
 681                 return -1;
 682         }
 683
 684         while (len > 0) {
 685                 if (len < buflen)
 686                         buflen = len;
 687
 688                 /* read data from source file */
 689                 errno = 0;
 690                 fread(buf, buflen, 1, f);
 691                 if (errno != 0) {
 692                         ERRS("unable to read from file: %s",name);
 693                         res = -1;
 694                         break;
 695                 }
 696
 697                 res = write_out_data(outfile, buf, buflen, css);
 698                 if (res)
 699                         break;
 700
 701                 len -= buflen;
 702         }
 703
 704         fclose(f);
 705         return res;
 706 }
 707
 708
 709 int
 710 write_out_block(FILE *outfile, struct fw_block *block, struct csum_state *css)
 711 {
 712         int res;
 713
 714         if (block == NULL)
 715                 return 0;
 716
 717         if (block->file_name == NULL)
 718                 return 0;
 719
 720         if (block->file_size == 0)
 721                 return 0;
 722
 723         res = write_out_file(outfile, block->file_name,
 724                         block->file_size, css);
 725         return res;
 726 }
 727
 728
 729 int
 730 write_out_image(FILE *outfile)
 731 {
 732         struct fw_block *block;
 733         struct fw_mmap mmap;
 734         struct zyn_rombin_hdr hdr;
 735         struct csum_state css;
 736         int i, res;
 737         uint32_t offset;
 738         uint32_t padlen;
 739         uint16_t csum;
 740         uint16_t t;
 741
 742         /* setup header fields */
 743         memset(&hdr, 0, sizeof(hdr));
 744         hdr.addr = board->code_start;
 745         hdr.type = OBJECT_TYPE_BOOTEXT;
 746         hdr.flags = ROMBIN_FLAG_OCSUM;
 747
 748         offset = board->romio_offs;
 749
 750         res = write_out_header(outfile, &hdr);
 751         if (res)
 752                 return res;
 753
 754         offset += sizeof(hdr);
 755
 756         csum_init(&css);
 757         res = write_out_block(outfile, bootext_block, &css);
 758         if (res)
 759                 return res;
 760
 761         offset += bootext_block->file_size;
 762         if (offset > (board->romio_offs + board->bootext_size)) {
 763                 ERR("bootext file '%s' is too big", bootext_block->file_name);
 764                 return -1;
 765         }
 766
 767         padlen = ALIGN(offset, MMAP_ALIGN) - offset;
 768         res = write_out_padding(outfile, padlen, 0xFF, &css);
 769         if (res)
 770                 return res;
 771
 772         offset += padlen;
 773
 774         mmap.addr = board->flash_base + offset;
 775         res = write_out_mmap(outfile, &mmap, &css);
 776         if (res)
 777                 return res;
 778
 779         offset += MMAP_DATA_SIZE;
 780
 781         if ((offset - board->romio_offs) < board->bootext_size) {
 782                 padlen = board->romio_offs + board->bootext_size - offset;
 783                 res = write_out_padding(outfile, padlen, 0xFF, &css);
 784                 if (res)
 785                         return res;
 786                 offset += padlen;
 787
 788                 DBG(2, "bootext end at %08x", offset);
 789         }
 790
 791         for (i = 0; i < num_blocks; i++) {
 792                 block = &blocks[i];
 793
 794                 if (block->type == BLOCK_TYPE_BOOTEXT)
 795                         continue;
 796
 797                 padlen = ALIGN(offset, block->align) - offset;
 798                 res = write_out_padding(outfile, padlen, 0xFF, &css);
 799                 if (res)
 800                         return res;
 801                 offset += padlen;
 802
 803                 res = write_out_block(outfile, block, &css);
 804                 if (res)
 805                         return res;
 806                 offset += block->file_size;
 807         }
 808
 809         padlen = ALIGN(offset, 4) - offset;
 810         res = write_out_padding(outfile, padlen, 0xFF, &css);
 811         if (res)
 812                 return res;
 813         offset += padlen;
 814
 815         csum = csum_get(&css);
 816         hdr.mmap_addr = mmap.addr;
 817         hdr.osize = 2;
 818
 819         res = read_magic(&hdr.ocsum);
 820         if (res)
 821                 return res;
 822         hdr.ocsum = BE16_TO_HOST(hdr.ocsum);
 823
 824         if (csum <= hdr.ocsum)
 825                 t = hdr.ocsum - csum;
 826         else
 827                 t = hdr.ocsum - csum - 1;
 828
 829         DBG(2, "ocsum=%04x, csum=%04x, fix=%04x", hdr.ocsum, csum, t);
 830
 831         t = HOST_TO_BE16(t);
 832         res = write_out_data(outfile, (uint8_t *)&t, 2, NULL);
 833         if (res)
 834                 return res;
 835
 836
 837         res = write_out_header(outfile, &hdr);
 838
 839         return res;
 840 }
 841
 842
 843 struct board_info *
 844 find_board(char *name)
 845 {
 846         struct board_info *ret;
 847         struct board_info *board;
 848
 849         ret = NULL;
 850         for (board = boards; board->name != NULL; board++){
 851                 if (strcasecmp(name, board->name) == 0) {
 852                         ret = board;
 853                         break;
 854                 }
 855         };
 856
 857         return ret;
 858 }
 859
 860
 861 int
 862 parse_opt_board(char ch, char *arg)
 863 {
 864
 865         DBG(1,"parsing board option: -%c %s", ch, arg);
 866
 867         if (board != NULL) {
 868                 ERR("only one board option allowed");
 869                 return -1;
 870         }
 871
 872         if (required_arg(ch, arg))
 873                 return -1;
 874
 875         board = find_board(arg);
 876         if (board == NULL){
 877                 ERR("invalid/unknown board specified: %s", arg);
 878                 return -1;
 879         }
 880
 881         return 0;
 882 }
 883
 884
 885 int
 886 parse_opt_ofname(char ch, char *arg)
 887 {
 888
 889         if (ofname != NULL) {
 890                 ERR("only one output file allowed");
 891                 return -1;
 892         }
 893
 894         if (required_arg(ch, arg))
 895                 return -1;
 896
 897         ofname = arg;
 898
 899         return 0;
 900 }
 901
 902
 903 int
 904 parse_opt_block(char ch, char *arg)
 905 {
 906         char buf[MAX_ARG_LEN];
 907         char *argv[MAX_ARG_COUNT];
 908         int argc;
 909         char *p;
 910         struct fw_block *block;
 911         int i;
 912
 913         if ( num_blocks >= MAX_NUM_BLOCKS ) {
 914                 ERR("too many blocks specified");
 915                 return -1;
 916         }
 917
 918         block = &blocks[num_blocks++];
 919
 920         /* setup default field values */
 921         block->padc = 0xFF;
 922
 923         switch(ch) {
 924         case 'b':
 925                 if (bootext_block) {
 926                         ERR("only one boot extension block allowed");
 927                         break;
 928                 }
 929                 block->type = BLOCK_TYPE_BOOTEXT;
 930                 bootext_block = block;
 931                 break;
 932         case 'r':
 933                 block->type = BLOCK_TYPE_RAW;
 934                 break;
 935         }
 936
 937         argc = parse_arg(arg, buf, argv);
 938
 939         i = 0;
 940         p = argv[i++];
 941         if (is_empty_arg(p)) {
 942                 ERR("no file specified in %s", arg);
 943                 return -1;
 944         } else {
 945                 block->file_name = strdup(p);
 946                 if (block->file_name == NULL) {
 947                         ERR("not enough memory");
 948                         return -1;
 949                 }
 950         }
 951
 952         if (block->type == BLOCK_TYPE_BOOTEXT)
 953                 return 0;
 954
 955         p = argv[i++];
 956         if (!is_empty_arg(p)) {
 957                 if (str2u32(p, &block->align) != 0) {
 958                         ERR("invalid block align in %s", arg);
 959                         return -1;
 960                 }
 961         }
 962
 963         return 0;
 964 }
 965
 966
 967 int
 968 calc_block_offsets(int type, uint32_t *offset)
 969 {
 970         struct fw_block *block;
 971         uint32_t next_offs;
 972         uint32_t avail;
 973         int i, res;
 974
 975         DBG(1,"calculating block offsets, starting with %lu",
 976                 *offset);
 977
 978         res = 0;
 979         for (i = 0; i < num_blocks; i++) {
 980                 block = &blocks[i];
 981
 982                 if (block->type != type)
 983                         continue;
 984
 985                 next_offs = ALIGN(*offset, block->align);
 986                 avail = board->flash_size - board->romio_offs - next_offs;
 987                 if (next_offs + block->file_size > avail) {
 988                         ERR("file %s is too big, offset = %u, size=%u,"
 989                                 " align = %u", block->file_name,
 990                                 (unsigned)next_offs,
 991                                 (unsigned)block->file_size,
 992                                 (unsigned)block->align);
 993                         res = -1;
 994                         break;
 995                 }
 996
 997                 block->padlen = next_offs - *offset;
 998                 *offset += block->file_size;
 999         }
1000
1001         return res;
1002 }
1003
1004 int
1005 process_blocks(void)
1006 {
1007         struct fw_block *block;
1008         uint32_t offset;
1009         int i;
1010         int res;
1011
1012         /* collecting file stats */
1013         for (i = 0; i < num_blocks; i++) {
1014                 block = &blocks[i];
1015                 res = block_stat_file(block);
1016                 if (res)
1017                         return res;
1018         }
1019
1020         offset = board->romio_offs + bootext_block->file_size;
1021         res = calc_block_offsets(BLOCK_TYPE_RAW, &offset);
1022
1023         return res;
1024 }
1025
1026
1027 int
1028 main(int argc, char *argv[])
1029 {
1030         int optinvalid = 0;   /* flag for invalid option */
1031         int c;
1032         int res = EXIT_FAILURE;
1033
1034         FILE *outfile;
1035
1036         progname=basename(argv[0]);
1037
1038         opterr = 0;  /* could not print standard getopt error messages */
1039         while ( 1 ) {
1040                 optinvalid = 0;
1041
1042                 c = getopt(argc, argv, "b:B:ho:r:v");
1043                 if (c == -1)
1044                         break;
1045
1046                 switch (c) {
1047                 case 'b':
1048                 case 'r':
1049                         optinvalid = parse_opt_block(c,optarg);
1050                         break;
1051                 case 'B':
1052                         optinvalid = parse_opt_board(c,optarg);
1053                         break;
1054                 case 'o':
1055                         optinvalid = parse_opt_ofname(c,optarg);
1056                         break;
1057                 case 'v':
1058                         verblevel++;
1059                         break;
1060                 case 'h':
1061                         usage(EXIT_SUCCESS);
1062                         break;
1063                 default:
1064                         optinvalid = 1;
1065                         break;
1066                 }
1067                 if (optinvalid != 0 ) {
1068                         ERR("invalid option: -%c", optopt);
1069                         goto out;
1070                 }
1071         }
1072
1073         if (board == NULL) {
1074                 ERR("no board specified");
1075                 goto out;
1076         }
1077
1078         if (ofname == NULL) {
1079                 ERR("no output file specified");
1080                 goto out;
1081         }
1082
1083         if (optind < argc) {
1084                 ERR("invalid option: %s", argv[optind]);
1085                 goto out;
1086         }
1087
1088         if (process_blocks() != 0) {
1089                 goto out;
1090         }
1091
1092         outfile = fopen(ofname, "w");
1093         if (outfile == NULL) {
1094                 ERRS("could not open \"%s\" for writing", ofname);
1095                 goto out;
1096         }
1097
1098         if (write_out_image(outfile) != 0)
1099                 goto out_flush;
1100
1101         DBG(1,"Image file %s completed.", ofname);
1102
1103         res = EXIT_SUCCESS;
1104
1105 out_flush:
1106         fflush(outfile);
1107         fclose(outfile);
1108         if (res != EXIT_SUCCESS) {
1109                 unlink(ofname);
1110         }
1111 out:
1112         return res;
1113 }