ch.c revision 1.27
1 /* $NetBSD: ch.c,v 1.27 1997/08/27 11:26:26 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej (at) and.com> 5 * All rights reserved. 6 * 7 * Partially based on an autochanger driver written by Stefan Grefen 8 * and on an autochanger driver written by the Systems Programming Group 9 * at the University of Utah Computer Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgements: 21 * This product includes software developed by Jason R. Thorpe 22 * for And Communications, http://www.and.com/ 23 * 4. The name of the author may not be used to endorse or promote products 24 * derived from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 31 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 33 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 34 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/errno.h> 42 #include <sys/ioctl.h> 43 #include <sys/buf.h> 44 #include <sys/proc.h> 45 #include <sys/user.h> 46 #include <sys/chio.h> 47 #include <sys/device.h> 48 #include <sys/malloc.h> 49 #include <sys/conf.h> 50 #include <sys/fcntl.h> 51 52 #include <dev/scsipi/scsipi_all.h> 53 #include <dev/scsipi/scsi_all.h> 54 #include <dev/scsipi/scsi_changer.h> 55 #include <dev/scsipi/scsiconf.h> 56 57 #define CHRETRIES 2 58 #define CHUNIT(x) (minor((x))) 59 60 struct ch_softc { 61 struct device sc_dev; /* generic device info */ 62 struct scsipi_link *sc_link; /* link in the SCSI bus */ 63 64 int sc_picker; /* current picker */ 65 66 /* 67 * The following information is obtained from the 68 * element address assignment page. 69 */ 70 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 71 int sc_counts[4]; /* counts, indexed by CHET_* */ 72 73 /* 74 * The following mask defines the legal combinations 75 * of elements for the MOVE MEDIUM command. 76 */ 77 u_int8_t sc_movemask[4]; 78 79 /* 80 * As above, but for EXCHANGE MEDIUM. 81 */ 82 u_int8_t sc_exchangemask[4]; 83 84 int flags; /* misc. info */ 85 86 /* 87 * Quirks; see below. 88 */ 89 int sc_settledelay; /* delay for settle */ 90 91 }; 92 93 /* sc_flags */ 94 #define CHF_ROTATE 0x01 /* picker can rotate */ 95 96 /* Autoconfiguration glue */ 97 #ifdef __BROKEN_INDIRECT_CONFIG 98 int chmatch __P((struct device *, void *, void *)); 99 #else 100 int chmatch __P((struct device *, struct cfdata *, void *)); 101 #endif 102 void chattach __P((struct device *, struct device *, void *)); 103 104 struct cfattach ch_ca = { 105 sizeof(struct ch_softc), chmatch, chattach 106 }; 107 108 struct cfdriver ch_cd = { 109 NULL, "ch", DV_DULL 110 }; 111 112 struct scsipi_inquiry_pattern ch_patterns[] = { 113 {T_CHANGER, T_REMOV, 114 "", "", ""}, 115 }; 116 117 /* SCSI glue */ 118 struct scsipi_device ch_switch = { 119 NULL, NULL, NULL, NULL 120 }; 121 122 int ch_move __P((struct ch_softc *, struct changer_move *)); 123 int ch_exchange __P((struct ch_softc *, struct changer_exchange *)); 124 int ch_position __P((struct ch_softc *, struct changer_position *)); 125 int ch_usergetelemstatus __P((struct ch_softc *, int, u_int8_t *)); 126 int ch_getelemstatus __P((struct ch_softc *, int, int, caddr_t, size_t)); 127 int ch_get_params __P((struct ch_softc *, int)); 128 void ch_get_quirks __P((struct ch_softc *, struct scsipi_inquiry_pattern *)); 129 130 /* 131 * SCSI changer quirks. 132 */ 133 struct chquirk { 134 struct scsipi_inquiry_pattern cq_match; /* device id pattern */ 135 int cq_settledelay; /* settle delay, in seconds */ 136 }; 137 138 struct chquirk chquirks[] = { 139 {{T_CHANGER, T_REMOV, 140 "SPECTRA", "9000", "0200"}, 141 75}, 142 }; 143 144 int 145 chmatch(parent, match, aux) 146 struct device *parent; 147 #ifdef __BROKEN_INDIRECT_CONFIG 148 void *match; 149 #else 150 struct cfdata *match; 151 #endif 152 void *aux; 153 { 154 struct scsipibus_attach_args *sa = aux; 155 int priority; 156 157 (void)scsipi_inqmatch(&sa->sa_inqbuf, 158 (caddr_t)ch_patterns, sizeof(ch_patterns)/sizeof(ch_patterns[0]), 159 sizeof(ch_patterns[0]), &priority); 160 161 return (priority); 162 } 163 164 void 165 chattach(parent, self, aux) 166 struct device *parent, *self; 167 void *aux; 168 { 169 struct ch_softc *sc = (struct ch_softc *)self; 170 struct scsipibus_attach_args *sa = aux; 171 struct scsipi_link *link = sa->sa_sc_link; 172 173 /* Glue into the SCSI bus */ 174 sc->sc_link = link; 175 link->device = &ch_switch; 176 link->device_softc = sc; 177 link->openings = 1; 178 179 printf("\n"); 180 181 /* 182 * Find out our device's quirks. 183 */ 184 ch_get_quirks(sc, &sa->sa_inqbuf); 185 186 /* 187 * Some changers require a long time to settle out, to do 188 * tape inventory, for instance. 189 */ 190 if (sc->sc_settledelay) { 191 printf("%s: waiting %d seconds for changer to settle...\n", 192 sc->sc_dev.dv_xname, sc->sc_settledelay); 193 delay(1000000 * sc->sc_settledelay); 194 } 195 196 /* 197 * Get information about the device. Note we can't use 198 * interrupts yet. 199 */ 200 if (ch_get_params(sc, SCSI_AUTOCONF)) 201 printf("%s: offline\n", sc->sc_dev.dv_xname); 202 else { 203 #define PLURAL(c) (c) == 1 ? "" : "s" 204 printf("%s: %d slot%s, %d drive%s, %d picker%s, %d portal%s\n", 205 sc->sc_dev.dv_xname, 206 sc->sc_counts[CHET_ST], PLURAL(sc->sc_counts[CHET_ST]), 207 sc->sc_counts[CHET_DT], PLURAL(sc->sc_counts[CHET_DT]), 208 sc->sc_counts[CHET_MT], PLURAL(sc->sc_counts[CHET_MT]), 209 sc->sc_counts[CHET_IE], PLURAL(sc->sc_counts[CHET_IE])); 210 #undef PLURAL 211 #ifdef CHANGER_DEBUG 212 printf("%s: move mask: 0x%x 0x%x 0x%x 0x%x\n", 213 sc->sc_dev.dv_xname, 214 sc->sc_movemask[CHET_MT], sc->sc_movemask[CHET_ST], 215 sc->sc_movemask[CHET_IE], sc->sc_movemask[CHET_DT]); 216 printf("%s: exchange mask: 0x%x 0x%x 0x%x 0x%x\n", 217 sc->sc_dev.dv_xname, 218 sc->sc_exchangemask[CHET_MT], sc->sc_exchangemask[CHET_ST], 219 sc->sc_exchangemask[CHET_IE], sc->sc_exchangemask[CHET_DT]); 220 #endif /* CHANGER_DEBUG */ 221 } 222 223 /* Default the current picker. */ 224 sc->sc_picker = sc->sc_firsts[CHET_MT]; 225 } 226 227 int 228 chopen(dev, flags, fmt, p) 229 dev_t dev; 230 int flags, fmt; 231 struct proc *p; 232 { 233 struct ch_softc *sc; 234 int unit, error = 0; 235 236 unit = CHUNIT(dev); 237 if ((unit >= ch_cd.cd_ndevs) || 238 ((sc = ch_cd.cd_devs[unit]) == NULL)) 239 return (ENXIO); 240 241 /* 242 * Only allow one open at a time. 243 */ 244 if (sc->sc_link->flags & SDEV_OPEN) 245 return (EBUSY); 246 247 sc->sc_link->flags |= SDEV_OPEN; 248 249 /* 250 * Absorb any unit attention errors. Ignore "not ready" 251 * since this might occur if e.g. a tape isn't actually 252 * loaded in the drive. 253 */ 254 error = scsipi_test_unit_ready(sc->sc_link, 255 SCSI_IGNORE_NOT_READY|SCSI_IGNORE_MEDIA_CHANGE); 256 if (error) 257 goto bad; 258 259 /* 260 * Make sure our parameters are up to date. 261 */ 262 if ((error = ch_get_params(sc, 0)) != 0) 263 goto bad; 264 265 return (0); 266 267 bad: 268 sc->sc_link->flags &= ~SDEV_OPEN; 269 return (error); 270 } 271 272 int 273 chclose(dev, flags, fmt, p) 274 dev_t dev; 275 int flags, fmt; 276 struct proc *p; 277 { 278 struct ch_softc *sc = ch_cd.cd_devs[CHUNIT(dev)]; 279 280 sc->sc_link->flags &= ~SDEV_OPEN; 281 return (0); 282 } 283 284 int 285 chioctl(dev, cmd, data, flags, p) 286 dev_t dev; 287 u_long cmd; 288 caddr_t data; 289 int flags; 290 struct proc *p; 291 { 292 struct ch_softc *sc = ch_cd.cd_devs[CHUNIT(dev)]; 293 int error = 0; 294 295 /* 296 * If this command can change the device's state, we must 297 * have the device open for writing. 298 */ 299 switch (cmd) { 300 case CHIOGPICKER: 301 case CHIOGPARAMS: 302 case CHIOGSTATUS: 303 break; 304 305 default: 306 if ((flags & FWRITE) == 0) 307 return (EBADF); 308 } 309 310 switch (cmd) { 311 case CHIOMOVE: 312 error = ch_move(sc, (struct changer_move *)data); 313 break; 314 315 case CHIOEXCHANGE: 316 error = ch_exchange(sc, (struct changer_exchange *)data); 317 break; 318 319 case CHIOPOSITION: 320 error = ch_position(sc, (struct changer_position *)data); 321 break; 322 323 case CHIOGPICKER: 324 *(int *)data = sc->sc_picker - sc->sc_firsts[CHET_MT]; 325 break; 326 327 case CHIOSPICKER: { 328 int new_picker = *(int *)data; 329 330 if (new_picker > (sc->sc_counts[CHET_MT] - 1)) 331 return (EINVAL); 332 sc->sc_picker = sc->sc_firsts[CHET_MT] + new_picker; 333 break; } 334 335 case CHIOGPARAMS: { 336 struct changer_params *cp = (struct changer_params *)data; 337 338 cp->cp_curpicker = sc->sc_picker - sc->sc_firsts[CHET_MT]; 339 cp->cp_npickers = sc->sc_counts[CHET_MT]; 340 cp->cp_nslots = sc->sc_counts[CHET_ST]; 341 cp->cp_nportals = sc->sc_counts[CHET_IE]; 342 cp->cp_ndrives = sc->sc_counts[CHET_DT]; 343 break; } 344 345 case CHIOGSTATUS: { 346 struct changer_element_status *ces = 347 (struct changer_element_status *)data; 348 349 error = ch_usergetelemstatus(sc, ces->ces_type, ces->ces_data); 350 break; } 351 352 /* Implement prevent/allow? */ 353 354 default: 355 error = scsipi_do_ioctl(sc->sc_link, dev, cmd, data, flags, p); 356 break; 357 } 358 359 return (error); 360 } 361 362 int 363 ch_move(sc, cm) 364 struct ch_softc *sc; 365 struct changer_move *cm; 366 { 367 struct scsi_move_medium cmd; 368 u_int16_t fromelem, toelem; 369 370 /* 371 * Check arguments. 372 */ 373 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 374 return (EINVAL); 375 if ((cm->cm_fromunit > (sc->sc_counts[cm->cm_fromtype] - 1)) || 376 (cm->cm_tounit > (sc->sc_counts[cm->cm_totype] - 1))) 377 return (ENODEV); 378 379 /* 380 * Check the request against the changer's capabilities. 381 */ 382 if ((sc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 383 return (EINVAL); 384 385 /* 386 * Calculate the source and destination elements. 387 */ 388 fromelem = sc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 389 toelem = sc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 390 391 /* 392 * Build the SCSI command. 393 */ 394 bzero(&cmd, sizeof(cmd)); 395 cmd.opcode = MOVE_MEDIUM; 396 _lto2b(sc->sc_picker, cmd.tea); 397 _lto2b(fromelem, cmd.src); 398 _lto2b(toelem, cmd.dst); 399 if (cm->cm_flags & CM_INVERT) 400 cmd.flags |= MOVE_MEDIUM_INVERT; 401 402 /* 403 * Send command to changer. 404 */ 405 return (sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 406 sizeof(cmd), NULL, 0, CHRETRIES, 100000, NULL, 0)); 407 } 408 409 int 410 ch_exchange(sc, ce) 411 struct ch_softc *sc; 412 struct changer_exchange *ce; 413 { 414 struct scsi_exchange_medium cmd; 415 u_int16_t src, dst1, dst2; 416 417 /* 418 * Check arguments. 419 */ 420 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 421 (ce->ce_sdsttype > CHET_DT)) 422 return (EINVAL); 423 if ((ce->ce_srcunit > (sc->sc_counts[ce->ce_srctype] - 1)) || 424 (ce->ce_fdstunit > (sc->sc_counts[ce->ce_fdsttype] - 1)) || 425 (ce->ce_sdstunit > (sc->sc_counts[ce->ce_sdsttype] - 1))) 426 return (ENODEV); 427 428 /* 429 * Check the request against the changer's capabilities. 430 */ 431 if (((sc->sc_exchangemask[ce->ce_srctype] & 432 (1 << ce->ce_fdsttype)) == 0) || 433 ((sc->sc_exchangemask[ce->ce_fdsttype] & 434 (1 << ce->ce_sdsttype)) == 0)) 435 return (EINVAL); 436 437 /* 438 * Calculate the source and destination elements. 439 */ 440 src = sc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 441 dst1 = sc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 442 dst2 = sc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 443 444 /* 445 * Build the SCSI command. 446 */ 447 bzero(&cmd, sizeof(cmd)); 448 cmd.opcode = EXCHANGE_MEDIUM; 449 _lto2b(sc->sc_picker, cmd.tea); 450 _lto2b(src, cmd.src); 451 _lto2b(dst1, cmd.fdst); 452 _lto2b(dst2, cmd.sdst); 453 if (ce->ce_flags & CE_INVERT1) 454 cmd.flags |= EXCHANGE_MEDIUM_INV1; 455 if (ce->ce_flags & CE_INVERT2) 456 cmd.flags |= EXCHANGE_MEDIUM_INV2; 457 458 /* 459 * Send command to changer. 460 */ 461 return (sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 462 sizeof(cmd), NULL, 0, CHRETRIES, 100000, NULL, 0)); 463 } 464 465 int 466 ch_position(sc, cp) 467 struct ch_softc *sc; 468 struct changer_position *cp; 469 { 470 struct scsi_position_to_element cmd; 471 u_int16_t dst; 472 473 /* 474 * Check arguments. 475 */ 476 if (cp->cp_type > CHET_DT) 477 return (EINVAL); 478 if (cp->cp_unit > (sc->sc_counts[cp->cp_type] - 1)) 479 return (ENODEV); 480 481 /* 482 * Calculate the destination element. 483 */ 484 dst = sc->sc_firsts[cp->cp_type] + cp->cp_unit; 485 486 /* 487 * Build the SCSI command. 488 */ 489 bzero(&cmd, sizeof(cmd)); 490 cmd.opcode = POSITION_TO_ELEMENT; 491 _lto2b(sc->sc_picker, cmd.tea); 492 _lto2b(dst, cmd.dst); 493 if (cp->cp_flags & CP_INVERT) 494 cmd.flags |= POSITION_TO_ELEMENT_INVERT; 495 496 /* 497 * Send command to changer. 498 */ 499 return (sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 500 sizeof(cmd), NULL, 0, CHRETRIES, 100000, NULL, 0)); 501 } 502 503 /* 504 * Perform a READ ELEMENT STATUS on behalf of the user, and return to 505 * the user only the data the user is interested in (i.e. an array of 506 * flags bytes). 507 */ 508 int 509 ch_usergetelemstatus(sc, chet, uptr) 510 struct ch_softc *sc; 511 int chet; 512 u_int8_t *uptr; 513 { 514 struct read_element_status_header *st_hdr; 515 struct read_element_status_page_header *pg_hdr; 516 struct read_element_status_descriptor *desc; 517 caddr_t data = NULL; 518 size_t size, desclen; 519 int avail, i, error = 0; 520 u_int8_t *user_data = NULL; 521 522 /* 523 * If there are no elements of the requested type in the changer, 524 * the request is invalid. 525 */ 526 if (sc->sc_counts[chet] == 0) 527 return (EINVAL); 528 529 /* 530 * Request one descriptor for the given element type. This 531 * is used to determine the size of the descriptor so that 532 * we can allocate enough storage for all of them. We assume 533 * that the first one can fit into 1k. 534 */ 535 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 536 error = ch_getelemstatus(sc, sc->sc_firsts[chet], 1, data, 1024); 537 if (error) 538 goto done; 539 540 st_hdr = (struct read_element_status_header *)data; 541 pg_hdr = (struct read_element_status_page_header *)((u_long)st_hdr + 542 sizeof(struct read_element_status_header)); 543 desclen = _2btol(pg_hdr->edl); 544 545 size = sizeof(struct read_element_status_header) + 546 sizeof(struct read_element_status_page_header) + 547 (desclen * sc->sc_counts[chet]); 548 549 /* 550 * Reallocate storage for descriptors and get them from the 551 * device. 552 */ 553 free(data, M_DEVBUF); 554 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 555 error = ch_getelemstatus(sc, sc->sc_firsts[chet], 556 sc->sc_counts[chet], data, size); 557 if (error) 558 goto done; 559 560 /* 561 * Fill in the user status array. 562 */ 563 st_hdr = (struct read_element_status_header *)data; 564 avail = _2btol(st_hdr->count); 565 if (avail != sc->sc_counts[chet]) 566 printf("%s: warning, READ ELEMENT STATUS avail != count\n", 567 sc->sc_dev.dv_xname); 568 569 user_data = (u_int8_t *)malloc(avail, M_DEVBUF, M_WAITOK); 570 571 desc = (struct read_element_status_descriptor *)((u_long)data + 572 sizeof(struct read_element_status_header) + 573 sizeof(struct read_element_status_page_header)); 574 for (i = 0; i < avail; ++i) { 575 user_data[i] = desc->flags1; 576 (u_long)desc += desclen; 577 } 578 579 /* Copy flags array out to userspace. */ 580 error = copyout(user_data, uptr, avail); 581 582 done: 583 if (data != NULL) 584 free(data, M_DEVBUF); 585 if (user_data != NULL) 586 free(user_data, M_DEVBUF); 587 return (error); 588 } 589 590 int 591 ch_getelemstatus(sc, first, count, data, datalen) 592 struct ch_softc *sc; 593 int first, count; 594 caddr_t data; 595 size_t datalen; 596 { 597 struct scsi_read_element_status cmd; 598 599 /* 600 * Build SCSI command. 601 */ 602 bzero(&cmd, sizeof(cmd)); 603 cmd.opcode = READ_ELEMENT_STATUS; 604 _lto2b(first, cmd.sea); 605 _lto2b(count, cmd.count); 606 _lto3b(datalen, cmd.len); 607 608 /* 609 * Send command to changer. 610 */ 611 return (sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 612 sizeof(cmd), (u_char *)data, datalen, CHRETRIES, 100000, NULL, 0)); 613 } 614 615 616 /* 617 * Ask the device about itself and fill in the parameters in our 618 * softc. 619 */ 620 int 621 ch_get_params(sc, scsiflags) 622 struct ch_softc *sc; 623 int scsiflags; 624 { 625 struct scsi_mode_sense cmd; 626 struct scsi_mode_sense_data { 627 struct scsi_mode_header header; 628 union { 629 struct page_element_address_assignment ea; 630 struct page_transport_geometry_parameters tg; 631 struct page_device_capabilities cap; 632 } pages; 633 } sense_data; 634 int error, from; 635 u_int8_t *moves, *exchanges; 636 637 /* 638 * Grab info from the element address assignment page. 639 */ 640 bzero(&cmd, sizeof(cmd)); 641 bzero(&sense_data, sizeof(sense_data)); 642 cmd.opcode = SCSI_MODE_SENSE; 643 cmd.byte2 |= 0x08; /* disable block descriptors */ 644 cmd.page = 0x1d; 645 cmd.length = (sizeof(sense_data) & 0xff); 646 error = sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 647 sizeof(cmd), (u_char *)&sense_data, sizeof(sense_data), CHRETRIES, 648 6000, NULL, scsiflags | SCSI_DATA_IN); 649 if (error) { 650 printf("%s: could not sense element address page\n", 651 sc->sc_dev.dv_xname); 652 return (error); 653 } 654 655 sc->sc_firsts[CHET_MT] = _2btol(sense_data.pages.ea.mtea); 656 sc->sc_counts[CHET_MT] = _2btol(sense_data.pages.ea.nmte); 657 sc->sc_firsts[CHET_ST] = _2btol(sense_data.pages.ea.fsea); 658 sc->sc_counts[CHET_ST] = _2btol(sense_data.pages.ea.nse); 659 sc->sc_firsts[CHET_IE] = _2btol(sense_data.pages.ea.fieea); 660 sc->sc_counts[CHET_IE] = _2btol(sense_data.pages.ea.niee); 661 sc->sc_firsts[CHET_DT] = _2btol(sense_data.pages.ea.fdtea); 662 sc->sc_counts[CHET_DT] = _2btol(sense_data.pages.ea.ndte); 663 664 /* XXX ask for page trasport geom */ 665 666 /* 667 * Grab info from the capabilities page. 668 */ 669 bzero(&cmd, sizeof(cmd)); 670 bzero(&sense_data, sizeof(sense_data)); 671 cmd.opcode = SCSI_MODE_SENSE; 672 cmd.byte2 |= 0x08; /* disable block descriptors */ 673 cmd.page = 0x1f; 674 cmd.length = (sizeof(sense_data) & 0xff); 675 error = sc->sc_link->scsipi_cmd(sc->sc_link, (struct scsipi_generic *)&cmd, 676 sizeof(cmd), (u_char *)&sense_data, sizeof(sense_data), CHRETRIES, 677 6000, NULL, scsiflags | SCSI_DATA_IN); 678 if (error) { 679 printf("%s: could not sense capabilities page\n", 680 sc->sc_dev.dv_xname); 681 return (error); 682 } 683 684 bzero(sc->sc_movemask, sizeof(sc->sc_movemask)); 685 bzero(sc->sc_exchangemask, sizeof(sc->sc_exchangemask)); 686 moves = &sense_data.pages.cap.move_from_mt; 687 exchanges = &sense_data.pages.cap.exchange_with_mt; 688 for (from = CHET_MT; from <= CHET_DT; ++from) { 689 sc->sc_movemask[from] = moves[from]; 690 sc->sc_exchangemask[from] = exchanges[from]; 691 } 692 693 sc->sc_link->flags |= SDEV_MEDIA_LOADED; 694 return (0); 695 } 696 697 void 698 ch_get_quirks(sc, inqbuf) 699 struct ch_softc *sc; 700 struct scsipi_inquiry_pattern *inqbuf; 701 { 702 struct chquirk *match; 703 int priority; 704 705 sc->sc_settledelay = 0; 706 707 match = (struct chquirk *)scsipi_inqmatch(inqbuf, 708 (caddr_t)chquirks, 709 sizeof(chquirks) / sizeof(chquirks[0]), 710 sizeof(chquirks[0]), &priority); 711 if (priority != 0) { 712 sc->sc_settledelay = match->cq_settledelay; 713 } 714 } 715
Indexes created Thu Sep 25 16:09:42 GMT 2025