src/mkzynfw.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *
   4  *  Copyright (C) 2007-2008 OpenWrt.org
   5  *  Copyright (C) 2007-2008 Gabor Juhos <juhosg at openwrt.org>
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <stdint.h>
  11 #include <string.h>
  12 #include <byteswap.h>
  13 #include <unistd.h>     /* for unlink() */
  14 #include <libgen.h>
  15 #include <getopt.h>     /* for getopt() */
  16 #include <stdarg.h>
  17 #include <errno.h>
  18 #include <sys/stat.h>
  19 #include <endian.h>     /* for __BYTE_ORDER */
  20 #if defined(__CYGWIN__)
  21 #  include <byteswap.h>
  22 #endif
  23 #include <inttypes.h>
  24
  25 #include "zynos.h"
  26
  27 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
  28 #  define HOST_TO_LE16(x)       (x)
  29 #  define HOST_TO_LE32(x)       (x)
  30 #  define LE16_TO_HOST(x)       (x)
  31 #  define LE32_TO_HOST(x)       (x)
  32 #  define HOST_TO_BE16(x)       bswap_16(x)
  33 #  define HOST_TO_BE32(x)       bswap_32(x)
  34 #  define BE16_TO_HOST(x)       bswap_16(x)
  35 #  define BE32_TO_HOST(x)       bswap_32(x)
  36 #else
  37 #  define HOST_TO_BE16(x)       (x)
  38 #  define HOST_TO_BE32(x)       (x)
  39 #  define BE16_TO_HOST(x)       (x)
  40 #  define BE32_TO_HOST(x)       (x)
  41 #  define HOST_TO_LE16(x)       bswap_16(x)
  42 #  define HOST_TO_LE32(x)       bswap_32(x)
  43 #  define LE16_TO_HOST(x)       bswap_16(x)
  44 #  define LE32_TO_HOST(x)       bswap_32(x)
  45 #endif
  46
  47 #define ALIGN(x,y)      (((x)+((y)-1)) & ~((y)-1))
  48
  49 #define MAX_NUM_BLOCKS  8
  50 #define MAX_ARG_COUNT   32
  51 #define MAX_ARG_LEN     1024
  52 #define FILE_BUF_LEN    (16*1024)
  53
  54
  55 struct csum_state{
  56         int             odd;
  57         uint32_t        sum;
  58         uint32_t        tmp;
  59 };
  60
  61 struct fw_block {
  62         uint32_t        align;          /* alignment of this block */
  63         char            *file_name;     /* name of the file */
  64         uint32_t        file_size;      /* length of the file */
  65         char            *mmap_name;     /* name in the MMAP table */
  66         int             type;           /* block type */
  67         uint32_t        padlen;
  68         uint8_t         padc;
  69 };
  70
  71 #define BLOCK_TYPE_BOOTEXT      0
  72 #define BLOCK_TYPE_RAW          1
  73
  74 struct fw_mmap {
  75         uint32_t        addr;
  76         uint32_t        size;
  77         uint32_t        user_addr;
  78         uint32_t        user_size;
  79 };
  80 #define MMAP_DATA_SIZE  1024
  81 #define MMAP_ALIGN      16
  82
  83 struct board_info {
  84         char *name;             /* model name */
  85         char *desc;             /* description */
  86         uint16_t vendor;        /* vendor id */
  87         uint16_t model;         /* model id */
  88         uint32_t flash_base;    /* flash base address */
  89         uint32_t flash_size;    /* board flash size */
  90         uint32_t code_start;    /* code start address */
  91         uint32_t romio_offs;    /* offset of the firmware within the flash */
  92         uint32_t bootext_size;  /* maximum size of bootext block */
  93 };
  94
  95 /*
  96  * Globals
  97  */
  98 char *progname;
  99 char *ofname = NULL;
 100 int verblevel = 0;
 101
 102 struct board_info *board = NULL;
 103
 104 struct fw_block blocks[MAX_NUM_BLOCKS];
 105 struct fw_block *bootext_block = NULL;
 106 int num_blocks = 0;
 107
 108 #define ADM5120_FLASH_BASE      0xBFC00000
 109 #define ADM5120_CODE_START      0x80008000
 110
 111 /* TODO: check values for AR7 */
 112 #define AR7_FLASH_BASE          0xB0000000
 113 #define AR7_CODE_START          0x94008000
 114
 115 #define ATHEROS_FLASH_BASE      0xBFC00000
 116 #define ATHEROS_CODE_START      0x80e00000
 117
 118 #define AR71XX_FLASH_BASE       0xBFC00000
 119 #define AR71XX_CODE_START       0x81E00000
 120
 121 #define BOARD(n, d, v, m, fb, fs, cs, fo) {             \
 122         .name = (n), .desc=(d),                         \
 123         .vendor = (v), .model = (m),                    \
 124         .flash_base = (fb), .flash_size = (fs)<<20,     \
 125         .code_start = (cs), .romio_offs = (fo),         \
 126         .bootext_size = BOOTEXT_DEF_SIZE                \
 127         }
 128
 129 #define ADMBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 130         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x8000)
 131
 132 #define ADMBOARD2(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 133         ADM5120_FLASH_BASE, fs, ADM5120_CODE_START, 0x10000)
 134
 135 #define AR7BOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 136         AR7_FLASH_BASE, fs, AR7_CODE_START, 0x8000)
 137
 138 #define ATHEROSBOARD1(n, d, m, fs) BOARD(n, d, ZYNOS_VENDOR_ID_ZYXEL, m, \
 139         ATHEROS_FLASH_BASE, fs, ATHEROS_CODE_START, 0x30000)
 140
 141 #define AR71XXBOARD1(n, d, m, fs) {             \
 142         .name = (n), .desc=(d),                         \
 143         .vendor = (ZYNOS_VENDOR_ID_ZYXEL), .model = (m),                        \
 144         .flash_base = (AR71XX_FLASH_BASE), .flash_size = (fs)<<20,      \
 145         .code_start = (AR71XX_CODE_START), .romio_offs = (0x40000),             \
 146         .bootext_size = 0x30000         \
 147         }
 148
 149
 150 static struct board_info boards[] = {
 151         /*
 152          * Infineon/ADMtek ADM5120 based boards
 153          */
 154         ADMBOARD2("ES-2024A",   "ZyXEL ES-2024A", ZYNOS_MODEL_ES_2024A, 4),
 155         ADMBOARD2("ES-2024PWR", "ZyXEL ES-2024PWR", ZYNOS_MODEL_ES_2024PWR, 4),
 156         ADMBOARD2("ES-2108",    "ZyXEL ES-2108", ZYNOS_MODEL_ES_2108, 4),
 157         ADMBOARD2("ES-2108-F",  "ZyXEL ES-2108-F", ZYNOS_MODEL_ES_2108_F, 4),
 158         ADMBOARD2("ES-2108-G",  "ZyXEL ES-2108-G", ZYNOS_MODEL_ES_2108_G, 4),
 159         ADMBOARD2("ES-2108-LC", "ZyXEL ES-2108-LC", ZYNOS_MODEL_ES_2108_LC, 4),
 160         ADMBOARD2("ES-2108PWR", "ZyXEL ES-2108PWR", ZYNOS_MODEL_ES_2108PWR, 4),
 161         ADMBOARD1("HS-100",     "ZyXEL HomeSafe 100", ZYNOS_MODEL_HS_100, 2),
 162         ADMBOARD1("HS-100W",    "ZyXEL HomeSafe 100W", ZYNOS_MODEL_HS_100W, 2),
 163         ADMBOARD1("P-334",      "ZyXEL Prestige 334", ZYNOS_MODEL_P_334, 2),
 164         ADMBOARD1("P-334U",     "ZyXEL Prestige 334U", ZYNOS_MODEL_P_334U, 4),
 165         ADMBOARD1("P-334W",     "ZyXEL Prestige 334W", ZYNOS_MODEL_P_334W, 2),
 166         ADMBOARD1("P-334WH",    "ZyXEL Prestige 334WH", ZYNOS_MODEL_P_334WH, 4),
 167         ADMBOARD1("P-334WHD",   "ZyXEL Prestige 334WHD", ZYNOS_MODEL_P_334WHD, 4),
 168         ADMBOARD1("P-334WT",    "ZyXEL Prestige 334WT", ZYNOS_MODEL_P_334WT, 4),
 169         ADMBOARD1("P-335",      "ZyXEL Prestige 335", ZYNOS_MODEL_P_335, 4),
 170         ADMBOARD1("P-335Plus",  "ZyXEL Prestige 335Plus", ZYNOS_MODEL_P_335PLUS, 4),
 171         ADMBOARD1("P-335U",     "ZyXEL Prestige 335U", ZYNOS_MODEL_P_335U, 4),
 172         ADMBOARD1("P-335WT",    "ZyXEL Prestige 335WT", ZYNOS_MODEL_P_335WT, 4),
 173
 174         {
 175                 .name           = "P-2602HW-D1A",
 176                 .desc           = "ZyXEL P-2602HW-D1A",
 177                 .vendor         = ZYNOS_VENDOR_ID_ZYXEL,
 178                 .model          = ZYNOS_MODEL_P_2602HW_D1A,
 179                 .flash_base     = AR7_FLASH_BASE,
 180                 .flash_size     = 4*1024*1024,
 181                 .code_start     = 0x94008000,
 182                 .romio_offs     = 0x20000,
 183                 .bootext_size   = BOOTEXT_DEF_SIZE,
 184         },
 185
 186 #if 0
 187         /*
 188          * Texas Instruments AR7 based boards
 189          */
 190         AR7BOARD1("P-660H-61",  "ZyXEL P-660H-61", ZYNOS_MODEL_P_660H_61, 2),
 191         AR7BOARD1("P-660H-63",  "ZyXEL P-660H-63", ZYNOS_MODEL_P_660H_63, 2),
 192         AR7BOARD1("P-660H-D1",  "ZyXEL P-660H-D1", ZYNOS_MODEL_P_660H_D1, 2),
 193         AR7BOARD1("P-660H-D3",  "ZyXEL P-660H-D3", ZYNOS_MODEL_P_660H_D3, 2),
 194         AR7BOARD1("P-660HW-61", "ZyXEL P-660HW-61", ZYNOS_MODEL_P_660HW_61, 2),
 195         AR7BOARD1("P-660HW-63", "ZyXEL P-660HW-63", ZYNOS_MODEL_P_660HW_63, 2),
 196         AR7BOARD1("P-660HW-67", "ZyXEL P-660HW-67", ZYNOS_MODEL_P_660HW_67, 2),
 197         AR7BOARD1("P-660HW-D1", "ZyXEL P-660HW-D1", ZYNOS_MODEL_P_660HW_D1, 2),
 198         AR7BOARD1("P-660HW-D3", "ZyXEL P-660HW-D3", ZYNOS_MODEL_P_660HW_D3, 2),
 199         AR7BOARD1("P-660R-61",  "ZyXEL P-660R-61", ZYNOS_MODEL_P_660R_61, 2),
 200         AR7BOARD1("P-660R-61C", "ZyXEL P-660R-61C", ZYNOS_MODEL_P_660R_61C, 2),
 201         AR7BOARD1("P-660R-63",  "ZyXEL P-660R-63", ZYNOS_MODEL_P_660R_63, 2),
 202         AR7BOARD1("P-660R-63C", "ZyXEL P-660R-63C", ZYNOS_MODEL_P_660R_63C, 2),
 203         AR7BOARD1("P-660R-67",  "ZyXEL P-660R-67", ZYNOS_MODEL_P_660R_67, 2),
 204         AR7BOARD1("P-660R-D1",  "ZyXEL P-660R-D1", ZYNOS_MODEL_P_660R_D1, 2),
 205         AR7BOARD1("P-660R-D3",  "ZyXEL P-660R-D3", ZYNOS_MODEL_P_660R_D3, 2),
 206 #endif
 207         {
 208                 .name           = "O2SURF",
 209                 .desc           = "O2 DSL Surf & Phone",
 210                 .vendor         = ZYNOS_VENDOR_ID_O2,
 211                 .model          = ZYNOS_MODEL_O2SURF,
 212                 .flash_base     = AR7_FLASH_BASE,
 213                 .flash_size     = 8*1024*1024,
 214                 .code_start     = 0x94014000,
 215                 .romio_offs     = 0x40000,
 216                 .bootext_size   = BOOTEXT_DEF_SIZE,
 217         },
 218
 219         /*
 220 :x
 221          */
 222         ATHEROSBOARD1("NBG-318S", "ZyXEL NBG-318S", ZYNOS_MODEL_NBG_318S, 4),
 223
 224         /*
 225          * Atheros ar71xx based boards
 226          */
 227         AR71XXBOARD1("NBG-460N", "ZyXEL NBG-460N", ZYNOS_MODEL_NBG_460N, 4),
 228
 229         {.name = NULL}
 230 };
 231
 232 /*
 233  * Message macros
 234  */
 235 #define ERR(fmt, ...) do { \
 236         fflush(0); \
 237         fprintf(stderr, "[%s] *** error: " fmt "\n", \
 238                         progname, ## __VA_ARGS__ ); \
 239 } while (0)
 240
 241 #define ERRS(fmt, ...) do { \
 242         int save = errno; \
 243         fflush(0); \
 244         fprintf(stderr, "[%s] *** error: " fmt ", %s\n", \
 245                         progname, ## __VA_ARGS__, strerror(save)); \
 246 } while (0)
 247
 248 #define WARN(fmt, ...) do { \
 249         fprintf(stderr, "[%s] *** warning: " fmt "\n", \
 250                         progname, ## __VA_ARGS__ ); \
 251 } while (0)
 252
 253 #define DBG(lev, fmt, ...) do { \
 254         if (verblevel < lev) \
 255                 break;\
 256         fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
 257 } while (0)
 258
 259 #define ERR_FATAL               -1
 260 #define ERR_INVALID_IMAGE       -2
 261
 262 /*
 263  * Helper routines
 264  */
 265 void
 266 usage(int status)
 267 {
 268         FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
 269         struct board_info *board;
 270
 271         fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
 272         fprintf(stream,
 273 "\n"
 274 "Options:\n"
 275 "  -B <board>      create image for the board specified with <board>.\n"
 276 "                  valid <board> values:\n"
 277         );
 278         for (board = boards; board->name != NULL; board++){
 279                 fprintf(stream,
 280 "                    %-12s= %s\n",
 281                  board->name, board->desc);
 282         };
 283         fprintf(stream,
 284 "  -b <file>[:<align>]\n"
 285 "                  add boot extension block to the image\n"
 286 "  -r <file>[:<align>]\n"
 287 "                  add raw block to the image\n"
 288 "  -o <file>       write output to the file <file>\n"
 289 "  -h              show this screen\n"
 290         );
 291
 292         exit(status);
 293 }
 294
 295
 296 /*
 297  * argument parsing
 298  */
 299 int
 300 str2u32(char *arg, uint32_t *val)
 301 {
 302         char *err = NULL;
 303         uint32_t t;
 304
 305         errno=0;
 306         t = strtoul(arg, &err, 0);
 307         if (errno || (err==arg) || ((err != NULL) && *err)) {
 308                 return -1;
 309         }
 310
 311         *val = t;
 312         return 0;
 313 }
 314
 315
 316 int
 317 str2u16(char *arg, uint16_t *val)
 318 {
 319         char *err = NULL;
 320         uint32_t t;
 321
 322         errno=0;
 323         t = strtoul(arg, &err, 0);
 324         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x10000)) {
 325                 return -1;
 326         }
 327
 328         *val = t & 0xFFFF;
 329         return 0;
 330 }
 331
 332 int
 333 str2u8(char *arg, uint8_t *val)
 334 {
 335         char *err = NULL;
 336         uint32_t t;
 337
 338         errno=0;
 339         t = strtoul(arg, &err, 0);
 340         if (errno || (err==arg) || ((err != NULL) && *err) || (t >= 0x100)) {
 341                 return -1;
 342         }
 343
 344         *val = t & 0xFF;
 345         return 0;
 346 }
 347
 348 int
 349 str2sig(char *arg, uint32_t *sig)
 350 {
 351         if (strlen(arg) != 4)
 352                 return -1;
 353
 354         *sig = arg[0] | (arg[1] << 8) | (arg[2] << 16) | (arg[3] << 24);
 355
 356         return 0;
 357 }
 358
 359
 360 int
 361 parse_arg(char *arg, char *buf, char *argv[])
 362 {
 363         int res = 0;
 364         size_t argl;
 365         char *tok;
 366         char **ap = &buf;
 367         int i;
 368
 369         memset(argv, 0, MAX_ARG_COUNT * sizeof(void *));
 370
 371         if ((arg == NULL)) {
 372                 /* no arguments */
 373                 return 0;
 374         }
 375
 376         argl = strlen(arg);
 377         if (argl == 0) {
 378                 /* no arguments */
 379                 return 0;
 380         }
 381
 382         if (argl >= MAX_ARG_LEN) {
 383                 /* argument is too long */
 384                 argl = MAX_ARG_LEN-1;
 385         }
 386
 387         memcpy(buf, arg, argl);
 388         buf[argl] = '\0';
 389
 390         for (i = 0; i < MAX_ARG_COUNT; i++) {
 391                 tok = strsep(ap, ":");
 392                 if (tok == NULL) {
 393                         break;
 394                 }
 395 #if 0
 396                 else if (tok[0] == '\0') {
 397                         break;
 398                 }
 399 #endif
 400                 argv[i] = tok;
 401                 res++;
 402         }
 403
 404         return res;
 405 }
 406
 407
 408 int
 409 required_arg(char c, char *arg)
 410 {
 411         if (arg == NULL || *arg != '-')
 412                 return 0;
 413
 414         ERR("option -%c requires an argument\n", c);
 415         return -1;
 416 }
 417
 418
 419 int
 420 is_empty_arg(char *arg)
 421 {
 422         int ret = 1;
 423         if (arg != NULL) {
 424                 if (*arg) ret = 0;
 425         };
 426         return ret;
 427 }
 428
 429
 430 void
 431 csum_init(struct csum_state *css)
 432 {
 433         css->odd = 0;
 434         css->sum = 0;
 435         css->tmp = 0;
 436 }
 437
 438
 439 void
 440 csum_update(void *data, uint32_t len, struct csum_state *css)
 441 {
 442         uint8_t *p = data;
 443
 444         if (len == 0)
 445                 return;
 446
 447         if (css->odd) {
 448                 css->sum += (css->tmp << 8) + p[0];
 449                 if (css->sum > 0xFFFF) {
 450                         css->sum += 1;
 451                         css->sum &= 0xFFFF;
 452                 }
 453                 css->odd = 0;
 454                 len--;
 455                 p++;
 456         }
 457
 458         for ( ; len > 1; len -= 2, p +=2 ) {
 459                 css->sum  += (p[0] << 8) + p[1];
 460                 if (css->sum > 0xFFFF) {
 461                         css->sum += 1;
 462                         css->sum &= 0xFFFF;
 463                 }
 464         }
 465
 466         if (len == 1){
 467                 css->tmp = p[0];
 468                 css->odd = 1;
 469         }
 470 }
 471
 472
 473 uint16_t
 474 csum_get(struct csum_state *css)
 475 {
 476         char pad = 0;
 477
 478         csum_update(&pad, 1, css);
 479         return css->sum;
 480 }
 481
 482 uint16_t
 483 csum_buf(uint8_t *p, uint32_t len)
 484 {
 485         struct csum_state css;
 486
 487         csum_init(&css);
 488         csum_update(p, len, &css);
 489         return csum_get(&css);
 490
 491 }
 492
 493 /*
 494  * routines to write data to the output file
 495  */
 496 int
 497 write_out_data(FILE *outfile, void *data, size_t len,
 498                 struct csum_state *css)
 499 {
 500         uint8_t *ptr = data;
 501
 502         errno = 0;
 503
 504         fwrite(ptr, len, 1, outfile);
 505         if (errno) {
 506                 ERR("unable to write output file");
 507                 return -1;
 508         }
 509
 510         if (css) {
 511                 csum_update(ptr, len, css);
 512         }
 513
 514         return 0;
 515 }
 516
 517
 518 int
 519 write_out_padding(FILE *outfile, size_t len, uint8_t padc,
 520                  struct csum_state *css)
 521 {
 522         uint8_t buf[512];
 523         size_t buflen = sizeof(buf);
 524
 525         memset(buf, padc, buflen);
 526         while (len > 0) {
 527                 if (len < buflen)
 528                         buflen = len;
 529
 530                 if (write_out_data(outfile, buf, buflen, css))
 531                         return -1;
 532
 533                 len -= buflen;
 534         }
 535
 536         return 0;
 537 }
 538
 539
 540 int
 541 write_out_data_align(FILE *outfile, void *data, size_t len, size_t align,
 542                 struct csum_state *css)
 543 {
 544         size_t padlen;
 545         int res;
 546
 547         res = write_out_data(outfile, data, len, css);
 548         if (res)
 549                 return res;
 550
 551         padlen = ALIGN(len,align) - len;
 552         res = write_out_padding(outfile, padlen, 0xFF, css);
 553
 554         return res;
 555 }
 556
 557
 558 int
 559 write_out_header(FILE *outfile, struct zyn_rombin_hdr *hdr)
 560 {
 561         struct zyn_rombin_hdr t;
 562
 563         errno = 0;
 564         if (fseek(outfile, 0, SEEK_SET) != 0) {
 565                 ERRS("fseek failed on output file");
 566                 return -1;
 567         }
 568
 569         /* setup temporary header fields */
 570         memset(&t, 0, sizeof(t));
 571         t.addr = HOST_TO_BE32(hdr->addr);
 572         memcpy(&t.sig, ROMBIN_SIGNATURE, ROMBIN_SIG_LEN);
 573         t.type = hdr->type;
 574         t.flags = hdr->flags;
 575         t.osize = HOST_TO_BE32(hdr->osize);
 576         t.csize = HOST_TO_BE32(hdr->csize);
 577         t.ocsum = HOST_TO_BE16(hdr->ocsum);
 578         t.ccsum = HOST_TO_BE16(hdr->ccsum);
 579         t.mmap_addr = HOST_TO_BE32(hdr->mmap_addr);
 580
 581         DBG(2, "hdr.addr      = 0x%08x", hdr->addr);
 582         DBG(2, "hdr.type      = 0x%02x", hdr->type);
 583         DBG(2, "hdr.osize     = 0x%08x", hdr->osize);
 584         DBG(2, "hdr.csize     = 0x%08x", hdr->csize);
 585         DBG(2, "hdr.flags     = 0x%02x", hdr->flags);
 586         DBG(2, "hdr.ocsum     = 0x%04x", hdr->ocsum);
 587         DBG(2, "hdr.ccsum     = 0x%04x", hdr->ccsum);
 588         DBG(2, "hdr.mmap_addr = 0x%08x", hdr->mmap_addr);
 589
 590         return write_out_data(outfile, (uint8_t *)&t, sizeof(t), NULL);
 591 }
 592
 593
 594 int
 595 write_out_mmap(FILE *outfile, struct fw_mmap *mmap, struct csum_state *css)
 596 {
 597         struct zyn_mmt_hdr *mh;
 598         uint8_t buf[MMAP_DATA_SIZE];
 599         uint32_t user_size;
 600         char *data;
 601         int res;
 602
 603         memset(buf, 0, sizeof(buf));
 604
 605         mh = (struct zyn_mmt_hdr *)buf;
 606
 607         /* TODO: needs to recreate the memory map too? */
 608         mh->count=0;
 609
 610         /* Build user data section */
 611         data = (char *)buf + sizeof(*mh);
 612         data += sprintf(data, "Vendor 1 %d", board->vendor);
 613         *data++ = '\0';
 614         data += sprintf(data, "Model 1 %d", BE16_TO_HOST(board->model));
 615         *data++ = '\0';
 616         /* TODO: make hardware version configurable? */
 617         data += sprintf(data, "HwVerRange 2 %d %d", 0, 0);
 618         *data++ = '\0';
 619
 620         user_size = (uint8_t *)data - buf;
 621         mh->user_start= HOST_TO_BE32(mmap->addr+sizeof(*mh));
 622         mh->user_end= HOST_TO_BE32(mmap->addr+user_size);
 623         mh->csum = HOST_TO_BE16(csum_buf(buf+sizeof(*mh), user_size));
 624
 625         res = write_out_data(outfile, buf, sizeof(buf), css);
 626
 627         return res;
 628 }
 629
 630
 631 int
 632 block_stat_file(struct fw_block *block)
 633 {
 634         struct stat st;
 635         int res;
 636
 637         if (block->file_name == NULL)
 638                 return 0;
 639
 640         res = stat(block->file_name, &st);
 641         if (res){
 642                 ERRS("stat failed on %s", block->file_name);
 643                 return res;
 644         }
 645
 646         block->file_size = st.st_size;
 647         return 0;
 648 }
 649
 650
 651 int
 652 read_magic(uint16_t *magic)
 653 {
 654         FILE *f;
 655         int res;
 656
 657         errno = 0;
 658         f = fopen(bootext_block->file_name,"r");
 659         if (errno) {
 660                 ERRS("unable to open file: %s", bootext_block->file_name);
 661                 return -1;
 662         }
 663
 664         errno = 0;
 665         fread(magic, 2, 1, f);
 666         if (errno != 0) {
 667                 ERRS("unable to read from file: %s", bootext_block->file_name);
 668                 res = -1;
 669                 goto err;
 670         }
 671
 672         res = 0;
 673
 674 err:
 675         fclose(f);
 676         return res;
 677 }
 678
 679
 680 int
 681 write_out_file(FILE *outfile, char *name, size_t len, struct csum_state *css)
 682 {
 683         char buf[FILE_BUF_LEN];
 684         size_t buflen = sizeof(buf);
 685         FILE *f;
 686         int res;
 687
 688         DBG(2, "writing out file, name=%s, len=%zu",
 689                 name, len);
 690
 691         errno = 0;
 692         f = fopen(name,"r");
 693         if (errno) {
 694                 ERRS("unable to open file: %s", name);
 695                 return -1;
 696         }
 697
 698         while (len > 0) {
 699                 if (len < buflen)
 700                         buflen = len;
 701
 702                 /* read data from source file */
 703                 errno = 0;
 704                 fread(buf, buflen, 1, f);
 705                 if (errno != 0) {
 706                         ERRS("unable to read from file: %s",name);
 707                         res = -1;
 708                         break;
 709                 }
 710
 711                 res = write_out_data(outfile, buf, buflen, css);
 712                 if (res)
 713                         break;
 714
 715                 len -= buflen;
 716         }
 717
 718         fclose(f);
 719         return res;
 720 }
 721
 722
 723 int
 724 write_out_block(FILE *outfile, struct fw_block *block, struct csum_state *css)
 725 {
 726         int res;
 727
 728         if (block == NULL)
 729                 return 0;
 730
 731         if (block->file_name == NULL)
 732                 return 0;
 733
 734         if (block->file_size == 0)
 735                 return 0;
 736
 737         res = write_out_file(outfile, block->file_name,
 738                         block->file_size, css);
 739         return res;
 740 }
 741
 742
 743 int
 744 write_out_image(FILE *outfile)
 745 {
 746         struct fw_block *block;
 747         struct fw_mmap mmap;
 748         struct zyn_rombin_hdr hdr;
 749         struct csum_state css;
 750         int i, res;
 751         uint32_t offset;
 752         uint32_t padlen;
 753         uint16_t csum;
 754         uint16_t t;
 755
 756         /* setup header fields */
 757         memset(&hdr, 0, sizeof(hdr));
 758         hdr.addr = board->code_start;
 759         hdr.type = OBJECT_TYPE_BOOTEXT;
 760         hdr.flags = ROMBIN_FLAG_OCSUM;
 761
 762         offset = board->romio_offs;
 763
 764         res = write_out_header(outfile, &hdr);
 765         if (res)
 766                 return res;
 767
 768         offset += sizeof(hdr);
 769
 770         csum_init(&css);
 771         res = write_out_block(outfile, bootext_block, &css);
 772         if (res)
 773                 return res;
 774
 775         offset += bootext_block->file_size;
 776         if (offset > (board->romio_offs + board->bootext_size)) {
 777                 ERR("bootext file '%s' is too big", bootext_block->file_name);
 778                 return -1;
 779         }
 780
 781         padlen = ALIGN(offset, MMAP_ALIGN) - offset;
 782         res = write_out_padding(outfile, padlen, 0xFF, &css);
 783         if (res)
 784                 return res;
 785
 786         offset += padlen;
 787
 788         mmap.addr = board->flash_base + offset;
 789         res = write_out_mmap(outfile, &mmap, &css);
 790         if (res)
 791                 return res;
 792
 793         offset += MMAP_DATA_SIZE;
 794
 795         if ((offset - board->romio_offs) < board->bootext_size) {
 796                 padlen = board->romio_offs + board->bootext_size - offset;
 797                 res = write_out_padding(outfile, padlen, 0xFF, &css);
 798                 if (res)
 799                         return res;
 800                 offset += padlen;
 801
 802                 DBG(2, "bootext end at %08x", offset);
 803         }
 804
 805         for (i = 0; i < num_blocks; i++) {
 806                 block = &blocks[i];
 807
 808                 if (block->type == BLOCK_TYPE_BOOTEXT)
 809                         continue;
 810
 811                 padlen = ALIGN(offset, block->align) - offset;
 812                 res = write_out_padding(outfile, padlen, 0xFF, &css);
 813                 if (res)
 814                         return res;
 815                 offset += padlen;
 816
 817                 res = write_out_block(outfile, block, &css);
 818                 if (res)
 819                         return res;
 820                 offset += block->file_size;
 821         }
 822
 823         padlen = ALIGN(offset, 4) - offset;
 824         res = write_out_padding(outfile, padlen, 0xFF, &css);
 825         if (res)
 826                 return res;
 827         offset += padlen;
 828
 829         csum = csum_get(&css);
 830         hdr.mmap_addr = mmap.addr;
 831         hdr.osize = 2;
 832
 833         res = read_magic(&hdr.ocsum);
 834         if (res)
 835                 return res;
 836         hdr.ocsum = BE16_TO_HOST(hdr.ocsum);
 837
 838         if (csum <= hdr.ocsum)
 839                 t = hdr.ocsum - csum;
 840         else
 841                 t = hdr.ocsum - csum - 1;
 842
 843         DBG(2, "ocsum=%04x, csum=%04x, fix=%04x", hdr.ocsum, csum, t);
 844
 845         t = HOST_TO_BE16(t);
 846         res = write_out_data(outfile, (uint8_t *)&t, 2, NULL);
 847         if (res)
 848                 return res;
 849
 850
 851         res = write_out_header(outfile, &hdr);
 852
 853         return res;
 854 }
 855
 856
 857 struct board_info *
 858 find_board(char *name)
 859 {
 860         struct board_info *ret;
 861         struct board_info *board;
 862
 863         ret = NULL;
 864         for (board = boards; board->name != NULL; board++){
 865                 if (strcasecmp(name, board->name) == 0) {
 866                         ret = board;
 867                         break;
 868                 }
 869         };
 870
 871         return ret;
 872 }
 873
 874
 875 int
 876 parse_opt_board(char ch, char *arg)
 877 {
 878
 879         DBG(1,"parsing board option: -%c %s", ch, arg);
 880
 881         if (board != NULL) {
 882                 ERR("only one board option allowed");
 883                 return -1;
 884         }
 885
 886         if (required_arg(ch, arg))
 887                 return -1;
 888
 889         board = find_board(arg);
 890         if (board == NULL){
 891                 ERR("invalid/unknown board specified: %s", arg);
 892                 return -1;
 893         }
 894
 895         return 0;
 896 }
 897
 898
 899 int
 900 parse_opt_ofname(char ch, char *arg)
 901 {
 902
 903         if (ofname != NULL) {
 904                 ERR("only one output file allowed");
 905                 return -1;
 906         }
 907
 908         if (required_arg(ch, arg))
 909                 return -1;
 910
 911         ofname = arg;
 912
 913         return 0;
 914 }
 915
 916
 917 int
 918 parse_opt_block(char ch, char *arg)
 919 {
 920         char buf[MAX_ARG_LEN];
 921         char *argv[MAX_ARG_COUNT];
 922         char *p;
 923         struct fw_block *block;
 924         int i;
 925
 926         if ( num_blocks >= MAX_NUM_BLOCKS ) {
 927                 ERR("too many blocks specified");
 928                 return -1;
 929         }
 930
 931         block = &blocks[num_blocks++];
 932
 933         /* setup default field values */
 934         block->padc = 0xFF;
 935
 936         switch(ch) {
 937         case 'b':
 938                 if (bootext_block) {
 939                         ERR("only one boot extension block allowed");
 940                         break;
 941                 }
 942                 block->type = BLOCK_TYPE_BOOTEXT;
 943                 bootext_block = block;
 944                 break;
 945         case 'r':
 946                 block->type = BLOCK_TYPE_RAW;
 947                 break;
 948         }
 949
 950         parse_arg(arg, buf, argv);
 951
 952         i = 0;
 953         p = argv[i++];
 954         if (is_empty_arg(p)) {
 955                 ERR("no file specified in %s", arg);
 956                 return -1;
 957         } else {
 958                 block->file_name = strdup(p);
 959                 if (block->file_name == NULL) {
 960                         ERR("not enough memory");
 961                         return -1;
 962                 }
 963         }
 964
 965         if (block->type == BLOCK_TYPE_BOOTEXT)
 966                 return 0;
 967
 968         p = argv[i++];
 969         if (!is_empty_arg(p)) {
 970                 if (str2u32(p, &block->align) != 0) {
 971                         ERR("invalid block align in %s", arg);
 972                         return -1;
 973                 }
 974         }
 975
 976         return 0;
 977 }
 978
 979
 980 int
 981 calc_block_offsets(int type, uint32_t *offset)
 982 {
 983         struct fw_block *block;
 984         uint32_t next_offs;
 985         uint32_t avail;
 986         int i, res;
 987
 988         DBG(1,"calculating block offsets, starting with %" PRIu32,
 989                 *offset);
 990
 991         res = 0;
 992         for (i = 0; i < num_blocks; i++) {
 993                 block = &blocks[i];
 994
 995                 if (block->type != type)
 996                         continue;
 997
 998                 next_offs = ALIGN(*offset, block->align);
 999                 avail = board->flash_size - next_offs;
1000                 if (block->file_size > avail) {
1001                         ERR("file %s is too big, offset = %u, size=%u,"
1002                                 " avail = %u, align = %u", block->file_name,
1003                                 (unsigned)next_offs,
1004                                 (unsigned)block->file_size,
1005                                 (unsigned)avail,
1006                                 (unsigned)block->align);
1007                         res = -1;
1008                         break;
1009                 }
1010
1011                 block->padlen = next_offs - *offset;
1012                 *offset += block->file_size;
1013         }
1014
1015         return res;
1016 }
1017
1018 int
1019 process_blocks(void)
1020 {
1021         struct fw_block *block;
1022         uint32_t offset;
1023         int i;
1024         int res;
1025
1026         /* collecting file stats */
1027         for (i = 0; i < num_blocks; i++) {
1028                 block = &blocks[i];
1029                 res = block_stat_file(block);
1030                 if (res)
1031                         return res;
1032         }
1033
1034         offset = board->romio_offs + bootext_block->file_size;
1035         res = calc_block_offsets(BLOCK_TYPE_RAW, &offset);
1036
1037         return res;
1038 }
1039
1040
1041 int
1042 main(int argc, char *argv[])
1043 {
1044         int optinvalid = 0;   /* flag for invalid option */
1045         int c;
1046         int res = EXIT_FAILURE;
1047
1048         FILE *outfile;
1049
1050         progname=basename(argv[0]);
1051
1052         opterr = 0;  /* could not print standard getopt error messages */
1053         while ( 1 ) {
1054                 optinvalid = 0;
1055
1056                 c = getopt(argc, argv, "b:B:ho:r:v");
1057                 if (c == -1)
1058                         break;
1059
1060                 switch (c) {
1061                 case 'b':
1062                 case 'r':
1063                         optinvalid = parse_opt_block(c,optarg);
1064                         break;
1065                 case 'B':
1066                         optinvalid = parse_opt_board(c,optarg);
1067                         break;
1068                 case 'o':
1069                         optinvalid = parse_opt_ofname(c,optarg);
1070                         break;
1071                 case 'v':
1072                         verblevel++;
1073                         break;
1074                 case 'h':
1075                         usage(EXIT_SUCCESS);
1076                         break;
1077                 default:
1078                         optinvalid = 1;
1079                         break;
1080                 }
1081                 if (optinvalid != 0 ) {
1082                         ERR("invalid option: -%c", optopt);
1083                         goto out;
1084                 }
1085         }
1086
1087         if (board == NULL) {
1088                 ERR("no board specified");
1089                 goto out;
1090         }
1091
1092         if (ofname == NULL) {
1093                 ERR("no output file specified");
1094                 goto out;
1095         }
1096
1097         if (optind < argc) {
1098                 ERR("invalid option: %s", argv[optind]);
1099                 goto out;
1100         }
1101
1102         if (process_blocks() != 0) {
1103                 goto out;
1104         }
1105
1106         outfile = fopen(ofname, "w");
1107         if (outfile == NULL) {
1108                 ERRS("could not open \"%s\" for writing", ofname);
1109                 goto out;
1110         }
1111
1112         if (write_out_image(outfile) != 0)
1113                 goto out_flush;
1114
1115         DBG(1,"Image file %s completed.", ofname);
1116
1117         res = EXIT_SUCCESS;
1118
1119 out_flush:
1120         fflush(outfile);
1121         fclose(outfile);
1122         if (res != EXIT_SUCCESS) {
1123                 unlink(ofname);
1124         }
1125 out:
1126         return res;
1127 }