1 /* $NetBSD: main.c,v 1.22 2012/12/25 17:02:35 phx Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/param.h> 33 #include <sys/reboot.h> 34 35 #include <lib/libsa/stand.h> 36 #include <lib/libsa/loadfile.h> 37 #include <lib/libkern/libkern.h> 38 39 #include <machine/bootinfo.h> 40 41 #include "globals.h" 42 43 static const struct bootarg { 44 const char *name; 45 int value; 46 } bootargs[] = { 47 { "multi", RB_AUTOBOOT }, 48 { "auto", RB_AUTOBOOT }, 49 { "ask", RB_ASKNAME }, 50 { "single", RB_SINGLE }, 51 { "ddb", RB_KDB }, 52 { "userconf", RB_USERCONF }, 53 { "norm", AB_NORMAL }, 54 { "quiet", AB_QUIET }, 55 { "verb", AB_VERBOSE }, 56 { "silent", AB_SILENT }, 57 { "debug", AB_DEBUG }, 58 { "altboot", -1 } 59 }; 60 61 /* default PATA drive configuration is "10": single master on first channel */ 62 static char *drive_config = "10"; 63 64 void *bootinfo; /* low memory reserved to pass bootinfo structures */ 65 int bi_size; /* BOOTINFO_MAXSIZE */ 66 char *bi_next; 67 68 void bi_init(void *); 69 void bi_add(void *, int, int); 70 71 struct btinfo_memory bi_mem; 72 struct btinfo_console bi_cons; 73 struct btinfo_clock bi_clk; 74 struct btinfo_prodfamily bi_fam; 75 struct btinfo_bootpath bi_path; 76 struct btinfo_rootdevice bi_rdev; 77 struct btinfo_net bi_net; 78 struct btinfo_modulelist *btinfo_modulelist; 79 size_t btinfo_modulelist_size; 80 81 struct boot_module { 82 char *bm_kmod; 83 ssize_t bm_len; 84 struct boot_module *bm_next; 85 }; 86 struct boot_module *boot_modules; 87 char module_base[80]; 88 uint32_t kmodloadp; 89 int modules_enabled = 0; 90 91 void module_add(char *); 92 void module_load(char *); 93 int module_open(struct boot_module *); 94 95 void main(int, char **, char *, char *); 96 97 extern char bootprog_name[], bootprog_rev[]; 98 extern char newaltboot[], newaltboot_end[]; 99 100 struct pcidev lata[2]; 101 struct pcidev lnif[2]; 102 struct pcidev lusb[3]; 103 int nata, nnif, nusb; 104 105 int brdtype; 106 uint32_t busclock, cpuclock; 107 108 static int check_bootname(char *); 109 static int input_cmdline(char **, int); 110 static int parse_cmdline(char **, int, char *, char *); 111 static int is_space(char); 112 #ifdef DEBUG 113 static void sat_test(void); 114 static void findflash(void); 115 #endif 116 117 #define BNAME_DEFAULT "wd0:" 118 #define MAX_ARGS 10 119 120 void 121 main(int argc, char *argv[], char *bootargs_start, char *bootargs_end) 122 { 123 unsigned long marks[MARK_MAX]; 124 struct brdprop *brdprop; 125 char *new_argv[MAX_ARGS]; 126 char *bname; 127 ssize_t len; 128 int err, fd, howto, i, n; 129 130 printf("\n>> %s altboot, revision %s\n", bootprog_name, bootprog_rev); 131 132 brdprop = brd_lookup(brdtype); 133 printf(">> %s, cpu %u MHz, bus %u MHz, %dMB SDRAM\n", brdprop->verbose, 134 cpuclock / 1000000, busclock / 1000000, bi_mem.memsize >> 20); 135 136 nata = pcilookup(PCI_CLASS_IDE, lata, 2); 137 if (nata == 0) 138 nata = pcilookup(PCI_CLASS_RAID, lata, 2); 139 if (nata == 0) 140 nata = pcilookup(PCI_CLASS_MISCSTORAGE, lata, 2); 141 if (nata == 0) 142 nata = pcilookup(PCI_CLASS_SCSI, lata, 2); 143 nnif = pcilookup(PCI_CLASS_ETH, lnif, 2); 144 nusb = pcilookup(PCI_CLASS_USB, lusb, 3); 145 146 #ifdef DEBUG 147 if (nata == 0) 148 printf("No IDE/SATA found\n"); 149 else for (n = 0; n < nata; n++) { 150 int b, d, f, bdf, pvd; 151 bdf = lata[n].bdf; 152 pvd = lata[n].pvd; 153 pcidecomposetag(bdf, &b, &d, &f); 154 printf("%04x.%04x DSK %02d:%02d:%02d\n", 155 PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f); 156 } 157 if (nnif == 0) 158 printf("no NET found\n"); 159 else for (n = 0; n < nnif; n++) { 160 int b, d, f, bdf, pvd; 161 bdf = lnif[n].bdf; 162 pvd = lnif[n].pvd; 163 pcidecomposetag(bdf, &b, &d, &f); 164 printf("%04x.%04x NET %02d:%02d:%02d\n", 165 PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f); 166 } 167 if (nusb == 0) 168 printf("no USB found\n"); 169 else for (n = 0; n < nusb; n++) { 170 int b, d, f, bdf, pvd; 171 bdf = lusb[0].bdf; 172 pvd = lusb[0].pvd; 173 pcidecomposetag(bdf, &b, &d, &f); 174 printf("%04x.%04x USB %02d:%02d:%02d\n", 175 PCI_VENDOR(pvd), PCI_PRODUCT(pvd), b, d, f); 176 } 177 #endif 178 179 pcisetup(); 180 pcifixup(); 181 182 /* 183 * When argc is too big then it is probably a pointer, which could 184 * indicate that we were launched as a Linux kernel module using 185 * "bootm". 186 */ 187 if (argc > MAX_ARGS) { 188 if (argv != NULL) { 189 /* 190 * initrd image was loaded: 191 * check if it contains a valid altboot command line 192 */ 193 char *p = (char *)argv; 194 195 if (strncmp(p, "altboot:", 8) == 0) { 196 *p = 0; 197 for (p = p + 8; *p >= ' '; p++); 198 argc = parse_cmdline(new_argv, MAX_ARGS, 199 ((char *)argv) + 8, p); 200 argv = new_argv; 201 } else 202 argc = 0; /* boot default */ 203 } else { 204 /* parse standard Linux bootargs */ 205 argc = parse_cmdline(new_argv, MAX_ARGS, 206 bootargs_start, bootargs_end); 207 argv = new_argv; 208 } 209 } 210 211 /* look for a PATA drive configuration string under the arguments */ 212 for (n = 1; n < argc; n++) { 213 if (strncmp(argv[n], "ide:", 4) == 0 && 214 argv[n][4] >= '0' && argv[n][4] <= '2') { 215 drive_config = &argv[n][4]; 216 break; 217 } 218 } 219 220 /* intialize a disk driver */ 221 for (i = 0, n = 0; i < nata; i++) 222 n += dskdv_init(&lata[i]); 223 if (n == 0) 224 printf("IDE/SATA device driver was not found\n"); 225 226 /* initialize a network interface */ 227 for (n = 0; n < nnif; n++) 228 if (netif_init(&lnif[n]) != 0) 229 break; 230 if (n >= nnif) 231 printf("no NET device driver was found\n"); 232 233 /* wait 2s for user to enter interactive mode */ 234 for (n = 200; n >= 0; n--) { 235 if (n % 100 == 0) 236 printf("\rHit any key to enter interactive mode: %d", 237 n / 100); 238 if (tstchar()) { 239 #ifdef DEBUG 240 unsigned c; 241 242 c = toupper(getchar()); 243 if (c == 'C') { 244 /* controller test terminal */ 245 sat_test(); 246 n = 200; 247 continue; 248 } 249 else if (c == 'F') { 250 /* find strings in Flash ROM */ 251 findflash(); 252 n = 200; 253 continue; 254 } 255 #else 256 (void)getchar(); 257 #endif 258 /* enter command line */ 259 argv = new_argv; 260 argc = input_cmdline(argv, MAX_ARGS); 261 break; 262 } 263 delay(10000); 264 } 265 putchar('\n'); 266 267 howto = RB_AUTOBOOT; /* default is autoboot = 0 */ 268 269 /* get boot options and determine bootname */ 270 for (n = 1; n < argc; n++) { 271 if (strncmp(argv[n], "ide:", 4) == 0) 272 continue; /* ignore drive configuration argument */ 273 274 for (i = 0; i < sizeof(bootargs) / sizeof(bootargs[0]); i++) { 275 if (strncasecmp(argv[n], bootargs[i].name, 276 strlen(bootargs[i].name)) == 0) { 277 howto |= bootargs[i].value; 278 break; 279 } 280 } 281 if (i >= sizeof(bootargs) / sizeof(bootargs[0])) 282 break; /* break on first unknown string */ 283 } 284 285 /* 286 * If no device name is given, we construct a list of drives 287 * which have valid disklabels. 288 */ 289 if (n >= argc) { 290 n = 0; 291 argc = 0; 292 argv = alloc(MAX_UNITS * (sizeof(char *) + sizeof("wdN:"))); 293 bname = (char *)(argv + MAX_UNITS); 294 for (i = 0; i < MAX_UNITS; i++) { 295 if (!dlabel_valid(i)) 296 continue; 297 sprintf(bname, "wd%d:", i); 298 argv[argc++] = bname; 299 bname += sizeof("wdN:"); 300 } 301 /* use default drive if no valid disklabel is found */ 302 if (argc == 0) { 303 argc = 1; 304 argv[0] = BNAME_DEFAULT; 305 } 306 } 307 308 /* try to boot off kernel from the drive list */ 309 while (n < argc) { 310 bname = argv[n++]; 311 312 if (check_bootname(bname) == 0) { 313 printf("%s not a valid bootname\n", bname); 314 continue; 315 } 316 317 if ((fd = open(bname, 0)) < 0) { 318 if (errno == ENOENT) 319 printf("\"%s\" not found\n", bi_path.bootpath); 320 continue; 321 } 322 printf("loading \"%s\" ", bi_path.bootpath); 323 marks[MARK_START] = 0; 324 325 if (howto == -1) { 326 /* load another altboot binary and replace ourselves */ 327 len = read(fd, (void *)0x100000, 0x1000000 - 0x100000); 328 if (len == -1) 329 goto loadfail; 330 close(fd); 331 netif_shutdown_all(); 332 333 memcpy((void *)0xf0000, newaltboot, 334 newaltboot_end - newaltboot); 335 __syncicache((void *)0xf0000, 336 newaltboot_end - newaltboot); 337 printf("Restarting...\n"); 338 run((void *)1, argv, (void *)0x100000, (void *)len, 339 (void *)0xf0000); 340 } 341 342 err = fdloadfile(fd, marks, LOAD_KERNEL); 343 close(fd); 344 if (err < 0) 345 continue; 346 347 printf("entry=%p, ssym=%p, esym=%p\n", 348 (void *)marks[MARK_ENTRY], 349 (void *)marks[MARK_SYM], 350 (void *)marks[MARK_END]); 351 352 bootinfo = (void *)0x4000; 353 bi_init(bootinfo); 354 bi_add(&bi_cons, BTINFO_CONSOLE, sizeof(bi_cons)); 355 bi_add(&bi_mem, BTINFO_MEMORY, sizeof(bi_mem)); 356 bi_add(&bi_clk, BTINFO_CLOCK, sizeof(bi_clk)); 357 bi_add(&bi_path, BTINFO_BOOTPATH, sizeof(bi_path)); 358 bi_add(&bi_rdev, BTINFO_ROOTDEVICE, sizeof(bi_rdev)); 359 bi_add(&bi_fam, BTINFO_PRODFAMILY, sizeof(bi_fam)); 360 if (brdtype == BRD_SYNOLOGY || brdtype == BRD_DLINKDSM) { 361 /* need to pass this MAC address to kernel */ 362 bi_add(&bi_net, BTINFO_NET, sizeof(bi_net)); 363 } 364 365 if (modules_enabled) { 366 if (fsmod != NULL) 367 module_add(fsmod); 368 kmodloadp = marks[MARK_END]; 369 btinfo_modulelist = NULL; 370 module_load(bname); 371 if (btinfo_modulelist != NULL && 372 btinfo_modulelist->num > 0) 373 bi_add(btinfo_modulelist, BTINFO_MODULELIST, 374 btinfo_modulelist_size); 375 } 376 377 launchfixup(); 378 netif_shutdown_all(); 379 380 __syncicache((void *)marks[MARK_ENTRY], 381 (u_int)marks[MARK_SYM] - (u_int)marks[MARK_ENTRY]); 382 383 run((void *)marks[MARK_SYM], (void *)marks[MARK_END], 384 (void *)howto, bootinfo, (void *)marks[MARK_ENTRY]); 385 386 /* should never come here */ 387 printf("exec returned. Restarting...\n"); 388 _rtt(); 389 } 390 loadfail: 391 printf("load failed. Restarting...\n"); 392 _rtt(); 393 } 394 395 void 396 bi_init(void *addr) 397 { 398 struct btinfo_magic bi_magic; 399 400 memset(addr, 0, BOOTINFO_MAXSIZE); 401 bi_next = (char *)addr; 402 bi_size = 0; 403 404 bi_magic.magic = BOOTINFO_MAGIC; 405 bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic)); 406 } 407 408 void 409 bi_add(void *new, int type, int size) 410 { 411 struct btinfo_common *bi; 412 413 if (bi_size + size > BOOTINFO_MAXSIZE) 414 return; /* XXX error? */ 415 416 bi = new; 417 bi->next = size; 418 bi->type = type; 419 memcpy(bi_next, new, size); 420 bi_next += size; 421 } 422 423 void 424 module_add(char *name) 425 { 426 struct boot_module *bm, *bmp; 427 428 while (*name == ' ' || *name == '\t') 429 ++name; 430 431 bm = alloc(sizeof(struct boot_module) + strlen(name) + 1); 432 if (bm == NULL) { 433 printf("couldn't allocate module %s\n", name); 434 return; 435 } 436 437 bm->bm_kmod = (char *)(bm + 1); 438 bm->bm_len = -1; 439 bm->bm_next = NULL; 440 strcpy(bm->bm_kmod, name); 441 if ((bmp = boot_modules) == NULL) 442 boot_modules = bm; 443 else { 444 while (bmp->bm_next != NULL) 445 bmp = bmp->bm_next; 446 bmp->bm_next = bm; 447 } 448 } 449 450 #define PAGE_SIZE 4096 451 #define alignpg(x) (((x)+PAGE_SIZE-1) & ~(PAGE_SIZE-1)) 452 453 void 454 module_load(char *kernel_path) 455 { 456 struct boot_module *bm; 457 struct bi_modulelist_entry *bi; 458 struct stat st; 459 char *p; 460 int size, fd; 461 462 strcpy(module_base, kernel_path); 463 if ((p = strchr(module_base, ':')) == NULL) 464 return; /* eeh?! */ 465 p += 1; 466 size = sizeof(module_base) - (p - module_base); 467 468 if (netbsd_version / 1000000 % 100 == 99) { 469 /* -current */ 470 snprintf(p, size, 471 "/stand/sandpoint/%d.%d.%d/modules", 472 netbsd_version / 100000000, 473 netbsd_version / 1000000 % 100, 474 netbsd_version / 100 % 100); 475 } 476 else if (netbsd_version != 0) { 477 /* release */ 478 snprintf(p, size, 479 "/stand/sandpoint/%d.%d/modules", 480 netbsd_version / 100000000, 481 netbsd_version / 1000000 % 100); 482 } 483 484 /* 485 * 1st pass; determine module existence 486 */ 487 size = 0; 488 for (bm = boot_modules; bm != NULL; bm = bm->bm_next) { 489 fd = module_open(bm); 490 if (fd == -1) 491 continue; 492 if (fstat(fd, &st) == -1 || st.st_size == -1) { 493 printf("WARNING: couldn't stat %s\n", bm->bm_kmod); 494 close(fd); 495 continue; 496 } 497 bm->bm_len = (int)st.st_size; 498 close(fd); 499 size += sizeof(struct bi_modulelist_entry); 500 } 501 if (size == 0) 502 return; 503 504 size += sizeof(struct btinfo_modulelist); 505 btinfo_modulelist = alloc(size); 506 if (btinfo_modulelist == NULL) { 507 printf("WARNING: couldn't allocate module list\n"); 508 return; 509 } 510 btinfo_modulelist_size = size; 511 btinfo_modulelist->num = 0; 512 513 /* 514 * 2nd pass; load modules into memory 515 */ 516 kmodloadp = alignpg(kmodloadp); 517 bi = (struct bi_modulelist_entry *)(btinfo_modulelist + 1); 518 for (bm = boot_modules; bm != NULL; bm = bm->bm_next) { 519 if (bm->bm_len == -1) 520 continue; /* already found unavailable */ 521 fd = module_open(bm); 522 printf("module \"%s\" ", bm->bm_kmod); 523 size = read(fd, (char *)kmodloadp, SSIZE_MAX); 524 if (size < bm->bm_len) 525 printf("WARNING: couldn't load"); 526 else { 527 snprintf(bi->kmod, sizeof(bi->kmod), bm->bm_kmod); 528 bi->type = BI_MODULE_ELF; 529 bi->len = size; 530 bi->base = kmodloadp; 531 btinfo_modulelist->num += 1; 532 printf("loaded at 0x%08x size 0x%x", kmodloadp, size); 533 kmodloadp += alignpg(size); 534 bi += 1; 535 } 536 printf("\n"); 537 close(fd); 538 } 539 btinfo_modulelist->endpa = kmodloadp; 540 } 541 542 int 543 module_open(struct boot_module *bm) 544 { 545 char path[80]; 546 int fd; 547 548 snprintf(path, sizeof(path), 549 "%s/%s/%s.kmod", module_base, bm->bm_kmod, bm->bm_kmod); 550 fd = open(path, 0); 551 return fd; 552 } 553 554 /* 555 * Return the drive configuration for the requested channel 'ch'. 556 * Channel 2 is the first channel of the next IDE controller. 557 * 0: for no drive present on channel 558 * 1: for master drive present on channel, no slave 559 * 2: for master and slave drive present 560 */ 561 int 562 get_drive_config(int ch) 563 { 564 if (drive_config != NULL) { 565 if (strlen(drive_config) <= ch) 566 return 0; /* an unspecified channel is unused */ 567 if (drive_config[ch] >= '0' && drive_config[ch] <= '2') 568 return drive_config[ch] - '0'; 569 } 570 return -1; 571 } 572 573 void * 574 allocaligned(size_t size, size_t align) 575 { 576 uint32_t p; 577 578 if (align-- < 2) 579 return alloc(size); 580 p = (uint32_t)alloc(size + align); 581 return (void *)((p + align) & ~align); 582 } 583 584 static int hex2nibble(char c) 585 { 586 587 if (c >= 'a') 588 c &= ~0x20; 589 if (c >= 'A' && c <= 'F') 590 c -= 'A' - ('9' + 1); 591 else if (c < '0' || c > '9') 592 return -1; 593 594 return c - '0'; 595 } 596 597 uint32_t 598 read_hex(const char *s) 599 { 600 int n; 601 uint32_t val; 602 603 val = 0; 604 while ((n = hex2nibble(*s++)) >= 0) 605 val = (val << 4) | n; 606 return val; 607 } 608 609 static int 610 check_bootname(char *s) 611 { 612 /* 613 * nfs: 614 * nfs:<bootfile> 615 * tftp: 616 * tftp:<bootfile> 617 * wd[N[P]]:<bootfile> 618 * mem:<address> 619 * 620 * net is a synonym of nfs. 621 */ 622 if (strncmp(s, "nfs:", 4) == 0 || strncmp(s, "net:", 4) == 0 || 623 strncmp(s, "tftp:", 5) == 0 || strncmp(s, "mem:", 4) == 0) 624 return 1; 625 if (s[0] == 'w' && s[1] == 'd') { 626 s += 2; 627 if (*s != ':' && *s >= '0' && *s <= '3') { 628 ++s; 629 if (*s != ':' && *s >= 'a' && *s <= 'p') 630 ++s; 631 } 632 return *s == ':'; 633 } 634 return 0; 635 } 636 637 static int input_cmdline(char **argv, int maxargc) 638 { 639 char *cmdline; 640 641 printf("\nbootargs> "); 642 cmdline = alloc(256); 643 gets(cmdline); 644 645 return parse_cmdline(argv, maxargc, cmdline, 646 cmdline + strlen(cmdline)); 647 } 648 649 static int 650 parse_cmdline(char **argv, int maxargc, char *p, char *end) 651 { 652 int argc; 653 654 argv[0] = ""; 655 for (argc = 1; argc < maxargc && p < end; argc++) { 656 while (is_space(*p)) 657 p++; 658 if (p >= end) 659 break; 660 argv[argc] = p; 661 while (!is_space(*p) && p < end) 662 p++; 663 *p++ = '\0'; 664 } 665 666 return argc; 667 } 668 669 static int 670 is_space(char c) 671 { 672 673 return c > '\0' && c <= ' '; 674 } 675 676 #ifdef DEBUG 677 static void 678 findflash(void) 679 { 680 char buf[256]; 681 int i, n; 682 unsigned char c, *p; 683 684 for (;;) { 685 printf("\nfind> "); 686 gets(buf); 687 if (tolower((unsigned)buf[0]) == 'x') 688 break; 689 for (i = 0, n = 0, c = 0; buf[i]; i++) { 690 c <<= 4; 691 c |= hex2nibble(buf[i]); 692 if (i & 1) 693 buf[n++] = c; 694 } 695 printf("Searching for:"); 696 for (i = 0; i < n; i++) 697 printf(" %02x", buf[i]); 698 printf("\n"); 699 for (p = (unsigned char *)0xff000000; 700 p <= (unsigned char *)(0xffffffff-n); p++) { 701 for (i = 0; i < n; i++) { 702 if (p[i] != buf[i]) 703 break; 704 } 705 if (i >= n) 706 printf("Found at %08x\n", (unsigned)p); 707 } 708 } 709 } 710 711 static void 712 sat_test(void) 713 { 714 char buf[1024]; 715 int i, j, n, pos; 716 unsigned char c; 717 718 putchar('\n'); 719 for (;;) { 720 do { 721 for (pos = 0; pos < 1024 && sat_tstch() != 0; pos++) 722 buf[pos] = sat_getch(); 723 if (pos > 1023) 724 break; 725 delay(100000); 726 } while (sat_tstch()); 727 728 for (i = 0; i < pos; i += 16) { 729 if ((n = i + 16) > pos) 730 n = pos; 731 for (j = 0; j < n; j++) 732 printf("%02x ", (unsigned)buf[i + j]); 733 for (; j < 16; j++) 734 printf(" "); 735 putchar('\"'); 736 for (j = 0; j < n; j++) { 737 c = buf[i + j]; 738 putchar((c >= 0x20 && c <= 0x7e) ? c : '.'); 739 } 740 printf("\"\n"); 741 } 742 743 printf("controller> "); 744 gets(buf); 745 if (buf[0] == '*' && buf[1] == 'X') 746 break; 747 748 if (buf[0] == '0' && tolower((unsigned)buf[1]) == 'x') { 749 for (i = 2, n = 0, c = 0; buf[i]; i++) { 750 c <<= 4; 751 c |= hex2nibble(buf[i]); 752 if (i & 1) 753 buf[n++] = c; 754 } 755 } else 756 n = strlen(buf); 757 758 if (n > 0) 759 sat_write(buf, n); 760 } 761 } 762 #endif 763