scsiconf.c revision 1.16
1 /* $NetBSD: scsiconf.c,v 1.16 1994/11/03 22:05:08 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Charles Hannum. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Charles Hannum. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Originally written by Julian Elischer (julian (at) tfs.com) 34 * for TRW Financial Systems for use under the MACH(2.5) operating system. 35 * 36 * TRW Financial Systems, in accordance with their agreement with Carnegie 37 * Mellon University, makes this software available to CMU to distribute 38 * or use in any manner that they see fit as long as this message is kept with 39 * the software. For this reason TFS also grants any other persons or 40 * organisations permission to use or modify this software. 41 * 42 * TFS supplies this software to be publicly redistributed 43 * on the understanding that TFS is not responsible for the correct 44 * functioning of this software in any circumstances. 45 * 46 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 47 */ 48 49 #include <sys/types.h> 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/malloc.h> 53 #include <sys/device.h> 54 55 #include <scsi/scsi_all.h> 56 #include <scsi/scsiconf.h> 57 58 #include "st.h" 59 #include "sd.h" 60 #include "ch.h" 61 #include "cd.h" 62 #include "uk.h" 63 #include "su.h" 64 65 #ifdef TFS 66 #include "bll.h" 67 #include "cals.h" 68 #include "kil.h" 69 #include "scan.h" 70 #else /* TFS */ 71 #define NBLL 0 72 #define NCALS 0 73 #define NKIL 0 74 #define NSCAN 0 75 #endif /* TFS */ 76 77 /* 78 * The structure of known drivers for autoconfiguration 79 */ 80 struct scsidevs { 81 char *devname; 82 u_int32 type; 83 boolean removable; 84 int flags; /* 1 show my comparisons during boot(debug) */ 85 #define SC_SHOWME 0x01 86 #define SC_ONE_LU 0x00 87 #define SC_MORE_LUS 0x02 88 char *manufacturer; 89 char *model; 90 char *version; 91 }; 92 93 #if NUK > 0 94 static struct scsidevs unknowndev = { 95 "uk", -1, 0, SC_MORE_LUS, 96 "standard", "any", "any" 97 }; 98 #endif /*NUK*/ 99 100 static struct scsidevs knowndevs[] = { 101 #if NSD > 0 102 { "sd", T_DIRECT, T_FIXED, SC_ONE_LU, 103 "standard", "any", "any" }, 104 { "sd", T_DIRECT, T_FIXED, SC_ONE_LU, 105 "MAXTOR ", "XT-4170S ", "B5A " }, 106 #endif /* NSD */ 107 #if NST > 0 108 { "st", T_SEQUENTIAL, T_REMOV, SC_ONE_LU, 109 "standard", "any", "any" }, 110 #endif /* NST */ 111 #if NCALS > 0 112 { "cals", T_PROCESSOR, T_FIXED, SC_MORE_LUS, 113 "standard", "any", "any" }, 114 #endif /* NCALS */ 115 #if NCH > 0 116 { "ch", T_CHANGER, T_REMOV, SC_ONE_LU, 117 "standard", "any", "any" }, 118 #endif /* NCH */ 119 #if NCD > 0 120 #ifndef UKTEST /* make cdroms unrecognised to test the uk driver */ 121 { "cd", T_READONLY, T_REMOV, SC_ONE_LU, 122 "SONY ", "CD-ROM CDU-8012 ", "3.1a" }, 123 { "cd", T_READONLY, T_REMOV, SC_MORE_LUS, 124 "PIONEER ", "CD-ROM DRM-600 ", "any" }, 125 #endif 126 #endif /* NCD */ 127 #if NBLL > 0 128 { "bll", T_PROCESSOR, T_FIXED, SC_MORE_LUS, 129 "AEG ", "READER ", "V1.0" }, 130 #endif /* NBLL */ 131 #if NKIL > 0 132 { "kil", T_SCANNER, T_FIXED, SC_ONE_LU, 133 "KODAK ", "IL Scanner 900 ", "any" }, 134 #endif /* NKIL */ 135 { 0 } 136 }; 137 138 /* 139 * Declarations 140 */ 141 struct scsidevs *scsi_probedev(); 142 struct scsidevs *selectdev(); 143 int scsi_probe_bus __P((int bus, int targ, int lun)); 144 145 struct scsi_device probe_switch = { 146 NULL, 147 NULL, 148 NULL, 149 NULL, 150 "probe", 151 0, 152 }; 153 154 int scsibusmatch __P((struct device *, void *, void *)); 155 void scsibusattach __P((struct device *, struct device *, void *)); 156 157 struct cfdriver scsibuscd = { 158 NULL, "scsibus", scsibusmatch, scsibusattach, DV_DULL, 159 sizeof(struct scsibus_data) 160 }; 161 162 int 163 scsibusmatch(parent, cf, aux) 164 struct device *parent; 165 void *match; 166 void *aux; 167 { 168 169 return 1; 170 } 171 172 /* 173 * The routine called by the adapter boards to get all their 174 * devices configured in. 175 */ 176 void 177 scsibusattach(parent, self, aux) 178 struct device *parent, *self; 179 void *aux; 180 { 181 struct scsibus_data *sb = (struct scsibus_data *)self; 182 struct scsi_link *sc_link_proto = aux; 183 184 sc_link_proto->scsibus = sb->sc_dev.dv_unit; 185 sb->adapter_link = sc_link_proto; 186 printf("\n"); 187 188 #if defined(SCSI_DELAY) && SCSI_DELAY > 2 189 printf("%s: waiting for scsi devices to settle\n", 190 sb->sc_dev.dv_xname); 191 #else /* SCSI_DELAY > 2 */ 192 #undef SCSI_DELAY 193 #define SCSI_DELAY 2 194 #endif /* SCSI_DELAY */ 195 delay(1000000 * SCSI_DELAY); 196 197 scsi_probe_bus(sb->sc_dev.dv_unit, -1, -1); 198 } 199 200 /* 201 * Probe the requested scsi bus. It must be already set up. 202 * -1 requests all set up scsi busses. 203 * targ and lun optionally narrow the search if not -1 204 */ 205 int 206 scsi_probe_busses(bus, targ, lun) 207 int bus, targ, lun; 208 { 209 210 if (bus == -1) { 211 for (bus = 0; bus < scsibuscd.cd_ndevs; bus++) 212 if (scsibuscd.cd_devs[bus]) 213 scsi_probe_bus(bus, targ, lun); 214 return 0; 215 } else { 216 return scsi_probe_bus(bus, targ, lun); 217 } 218 } 219 220 /* 221 * Probe the requested scsi bus. It must be already set up. 222 * targ and lun optionally narrow the search if not -1 223 */ 224 int 225 scsi_probe_bus(bus, targ, lun) 226 int bus, targ, lun; 227 { 228 struct scsibus_data *scsi; 229 int maxtarg, mintarg, maxlun, minlun; 230 struct scsi_link *sc_link_proto; 231 u_int8 scsi_addr ; 232 struct scsidevs *bestmatch = NULL; 233 struct scsi_link *sc_link = NULL; 234 boolean maybe_more; 235 236 if (bus < 0 || bus >= scsibuscd.cd_ndevs) 237 return ENXIO; 238 scsi = scsibuscd.cd_devs[bus]; 239 if (!scsi) 240 return ENXIO; 241 242 sc_link_proto = scsi->adapter_link; 243 scsi_addr = sc_link_proto->adapter_targ; 244 245 if (targ == -1) { 246 maxtarg = 7; 247 mintarg = 0; 248 } else { 249 if (targ < 0 || targ > 7) 250 return EINVAL; 251 maxtarg = mintarg = targ; 252 } 253 254 if (lun == -1) { 255 maxlun = 7; 256 minlun = 0; 257 } else { 258 if (lun < 0 || lun > 7) 259 return EINVAL; 260 maxlun = minlun = lun; 261 } 262 263 for (targ = mintarg; targ <= maxtarg; targ++) { 264 maybe_more = 0; /* by default only check 1 lun */ 265 #if 0 /* XXXX */ 266 if (targ == scsi_addr) 267 continue; 268 #endif 269 for (lun = minlun; lun <= maxlun; lun++) { 270 /* 271 * The spot appears to already have something 272 * linked in, skip past it. Must be doing a 'reprobe' 273 */ 274 if (scsi->sc_link[targ][lun]) { 275 /* don't do this one, but check other luns */ 276 maybe_more = 1; 277 continue; 278 } 279 /* 280 * If we presently don't have a link block 281 * then allocate one to use while probing 282 */ 283 if (!sc_link) { 284 sc_link = malloc(sizeof(*sc_link), M_TEMP, M_NOWAIT); 285 *sc_link = *sc_link_proto; /* struct copy */ 286 sc_link->opennings = 1; 287 sc_link->device = &probe_switch; 288 } 289 sc_link->target = targ; 290 sc_link->lun = lun; 291 bestmatch = scsi_probedev(sc_link, &maybe_more); 292 /* 293 * We already know what the device is. We use a 294 * special matching routine which insists that the 295 * cfdata is of the right type rather than putting 296 * more intelligence in individual match routines for 297 * each high-level driver. We must have 298 * scsi_targmatch() do all of the comparisons, or we 299 * could get stuck in an infinite loop trying the same 300 * device repeatedly. We use the `fordriver' field of 301 * the scsi_link for now, rather than inventing a new 302 * structure just for the config_search(). 303 */ 304 if (bestmatch) { 305 sc_link->fordriver = bestmatch->devname; 306 if (config_found((struct device *)scsi, 307 sc_link, NULL)) { 308 scsi->sc_link[targ][lun] = sc_link; 309 sc_link = NULL; /* it's been used */ 310 } else 311 printf("No matching config entry.\n"); 312 } 313 if (!maybe_more)/* nothing suggests we'll find more */ 314 break; /* nothing here, skip to next targ */ 315 /* otherwise something says we should look further */ 316 } 317 } 318 if (sc_link) 319 free(sc_link, M_TEMP); 320 return 0; 321 } 322 323 int 324 scsi_targmatch(parent, match, aux) 325 struct device *parent; 326 void *match; 327 void *aux; 328 { 329 struct cfdata *cf = match; 330 struct scsi_link *sc_link = aux; 331 char *devname = sc_link->fordriver; 332 333 if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target) 334 return 0; 335 if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun) 336 return 0; 337 if (strcmp(cf->cf_driver->cd_name, devname)) 338 return 0; 339 340 return 1; 341 } 342 343 /* 344 * given a target and lu, ask the device what 345 * it is, and find the correct driver table 346 * entry. 347 */ 348 struct scsidevs * 349 scsi_probedev(sc_link, maybe_more) 350 boolean *maybe_more; 351 struct scsi_link *sc_link; 352 { 353 u_int8 target = sc_link->target; 354 u_int8 lun = sc_link->lun; 355 struct scsi_adapter *scsi_adapter = sc_link->adapter; 356 struct scsidevs *bestmatch = NULL; 357 char *dtype = NULL, *desc; 358 char *qtype; 359 static struct scsi_inquiry_data inqbuf; 360 u_int32 len, qualifier, type; 361 boolean remov; 362 char manu[32]; 363 char model[32]; 364 char version[32]; 365 366 bzero(&inqbuf, sizeof(inqbuf)); 367 /* 368 * Ask the device what it is 369 */ 370 #ifdef SCSIDEBUG 371 if (target == DEBUGTARG && lun == DEBUGLUN) 372 sc_link->flags |= DEBUGLEVEL; 373 else 374 sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2 | SDEV_DB3 | SDEV_DB4); 375 #endif /* SCSIDEBUG */ 376 /* catch unit attn */ 377 scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT); 378 #ifdef DOUBTFULL 379 switch (scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT)) { 380 case 0: /* said it WAS ready */ 381 case EBUSY: /* replied 'NOT READY' but WAS present, continue */ 382 case ENXIO: 383 break; 384 case EIO: /* device timed out */ 385 case EINVAL: /* Lun not supported */ 386 default: 387 return NULL; 388 389 } 390 #endif /*DOUBTFULL*/ 391 #ifdef SCSI_2_DEF 392 /* some devices need to be told to go to SCSI2 */ 393 /* However some just explode if you tell them this.. leave it out */ 394 scsi_change_def(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT); 395 #endif /*SCSI_2_DEF */ 396 397 /* Now go ask the device all about itself */ 398 if (scsi_inquire(sc_link, &inqbuf, SCSI_NOSLEEP | SCSI_NOMASK) != 0) 399 return NULL; 400 401 /* 402 * note what BASIC type of device it is 403 */ 404 type = inqbuf.device & SID_TYPE; 405 qualifier = inqbuf.device & SID_QUAL; 406 remov = inqbuf.dev_qual2 & SID_REMOVABLE; 407 408 /* 409 * Any device qualifier that has the top bit set (qualifier&4 != 0) 410 * is vendor specific and won't match in this switch. 411 */ 412 switch (qualifier) { 413 case SID_QUAL_LU_OK: 414 qtype = ""; 415 break; 416 417 case SID_QUAL_LU_OFFLINE: 418 qtype = ", Unit not Connected!"; 419 break; 420 421 case SID_QUAL_RSVD: 422 qtype = ", Reserved Peripheral Qualifier!"; 423 *maybe_more = 1; 424 return NULL; 425 break; 426 427 case SID_QUAL_BAD_LU: 428 /* 429 * Check for a non-existent unit. If the device is returning 430 * this much, then we must set the flag that has 431 * the searchers keep looking on other luns. 432 */ 433 qtype = ", The Target can't support this Unit!"; 434 *maybe_more = 1; 435 return NULL; 436 437 default: 438 dtype = "vendor specific"; 439 qtype = ""; 440 *maybe_more = 1; 441 break; 442 } 443 if (dtype == 0) { 444 switch (type) { 445 case T_DIRECT: 446 dtype = "direct"; 447 break; 448 case T_SEQUENTIAL: 449 dtype = "sequential"; 450 break; 451 case T_PRINTER: 452 dtype = "printer"; 453 break; 454 case T_PROCESSOR: 455 dtype = "processor"; 456 break; 457 case T_READONLY: 458 dtype = "readonly"; 459 break; 460 case T_WORM: 461 dtype = "worm"; 462 break; 463 case T_SCANNER: 464 dtype = "scanner"; 465 break; 466 case T_OPTICAL: 467 dtype = "optical"; 468 break; 469 case T_CHANGER: 470 dtype = "changer"; 471 break; 472 case T_COMM: 473 dtype = "communication"; 474 break; 475 case T_NODEVICE: 476 *maybe_more = 1; 477 return NULL; 478 default: 479 dtype = NULL; 480 break; 481 } 482 } 483 484 /* 485 * Then if it's advanced enough, more detailed 486 * information 487 */ 488 if ((inqbuf.version & SID_ANSII) > 0) { 489 if ((len = inqbuf.additional_length 490 + ((char *) inqbuf.unused 491 - (char *) &inqbuf)) 492 > (sizeof(struct scsi_inquiry_data) - 1)) 493 len = sizeof(struct scsi_inquiry_data) - 1; 494 desc = inqbuf.vendor; 495 desc[len - (desc - (char *) &inqbuf)] = 0; 496 strncpy(manu, inqbuf.vendor, 8); 497 manu[8] = 0; 498 strncpy(model, inqbuf.product, 16); 499 model[16] = 0; 500 strncpy(version, inqbuf.revision, 4); 501 version[4] = 0; 502 } else 503 /* 504 * If not advanced enough, use default values 505 */ 506 { 507 desc = "early protocol device"; 508 strncpy(manu, "unknown", 8); 509 strncpy(model, "unknown", 16); 510 strncpy(version, "????", 4); 511 } 512 printf("%s targ %d lun %d: <%s%s%s> SCSI%d ", 513 ((struct device *)sc_link->adapter_softc)->dv_xname, 514 target, lun, manu, model, version, 515 inqbuf.version & SID_ANSII); 516 if (dtype) 517 printf("%s", dtype); 518 else 519 printf("type %d", type); 520 printf(" %s\n", remov ? "removable" : "fixed"); 521 if (qtype[0]) 522 printf("%s targ %d lun %d: qualifier %d(%s)\n", 523 ((struct device *)sc_link->adapter_softc)->dv_xname, 524 target, lun, qualifier, qtype); 525 526 /* 527 * Try make as good a match as possible with 528 * available sub drivers 529 */ 530 bestmatch = selectdev(qualifier, type, remov ? T_REMOV : T_FIXED, 531 manu, model, version); 532 if (bestmatch && bestmatch->flags & SC_MORE_LUS) 533 *maybe_more = 1; 534 return bestmatch; 535 } 536 537 /* 538 * Try make as good a match as possible with 539 * available sub drivers 540 */ 541 struct scsidevs * 542 selectdev(qualifier, type, remov, manu, model, rev) 543 u_int32 qualifier, type; 544 boolean remov; 545 char *manu, *model, *rev; 546 { 547 u_int32 numents = (sizeof(knowndevs) / sizeof(struct scsidevs)) - 1; 548 u_int32 count = 0; 549 u_int32 bestmatches = 0; 550 struct scsidevs *bestmatch = (struct scsidevs *) 0; 551 struct scsidevs *thisentry = knowndevs; 552 553 type |= qualifier; /* why? */ 554 555 thisentry--; 556 while (count++ < numents) { 557 thisentry++; 558 if (type != thisentry->type) 559 continue; 560 if (bestmatches < 1) { 561 bestmatches = 1; 562 bestmatch = thisentry; 563 } 564 if (remov != thisentry->removable) 565 continue; 566 if (bestmatches < 2) { 567 bestmatches = 2; 568 bestmatch = thisentry; 569 } 570 if (thisentry->flags & SC_SHOWME) 571 printf("\n%s-\n%s-", thisentry->manufacturer, manu); 572 if (strcmp(thisentry->manufacturer, manu)) 573 continue; 574 if (bestmatches < 3) { 575 bestmatches = 3; 576 bestmatch = thisentry; 577 } 578 if (thisentry->flags & SC_SHOWME) 579 printf("\n%s-\n%s-", thisentry->model, model); 580 if (strcmp(thisentry->model, model)) 581 continue; 582 if (bestmatches < 4) { 583 bestmatches = 4; 584 bestmatch = thisentry; 585 } 586 if (thisentry->flags & SC_SHOWME) 587 printf("\n%s-\n%s-", thisentry->version, rev); 588 if (strcmp(thisentry->version, rev)) 589 continue; 590 if (bestmatches < 5) { 591 bestmatches = 5; 592 bestmatch = thisentry; 593 break; 594 } 595 } 596 #if NUK > 0 597 if (!bestmatch) 598 bestmatch = &unknowndev; 599 #endif 600 if (!bestmatch) 601 printf("No matching driver.\n"); 602 return bestmatch; 603 } 604
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