1 /* $NetBSD: cd.c,v 1.234 2005/12/21 13:11:27 reinoud Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2001, 2003, 2004, 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Originally written by Julian Elischer (julian@tfs.com) 41 * for TRW Financial Systems for use under the MACH(2.5) operating system. 42 * 43 * TRW Financial Systems, in accordance with their agreement with Carnegie 44 * Mellon University, makes this software available to CMU to distribute 45 * or use in any manner that they see fit as long as this message is kept with 46 * the software. For this reason TFS also grants any other persons or 47 * organisations permission to use or modify this software. 48 * 49 * TFS supplies this software to be publicly redistributed 50 * on the understanding that TFS is not responsible for the correct 51 * functioning of this software in any circumstances. 52 * 53 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 54 */ 55 56 #include <sys/cdefs.h> 57 __KERNEL_RCSID(0, "$NetBSD: cd.c,v 1.234 2005/12/21 13:11:27 reinoud Exp $"); 58 59 #include "rnd.h" 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/kernel.h> 64 #include <sys/file.h> 65 #include <sys/stat.h> 66 #include <sys/ioctl.h> 67 #include <sys/buf.h> 68 #include <sys/bufq.h> 69 #include <sys/uio.h> 70 #include <sys/malloc.h> 71 #include <sys/errno.h> 72 #include <sys/device.h> 73 #include <sys/disklabel.h> 74 #include <sys/disk.h> 75 #include <sys/cdio.h> 76 #include <sys/dvdio.h> 77 #include <sys/scsiio.h> 78 #include <sys/proc.h> 79 #include <sys/conf.h> 80 #include <sys/vnode.h> 81 #if NRND > 0 82 #include <sys/rnd.h> 83 #endif 84 85 #include <dev/scsipi/scsi_spc.h> 86 #include <dev/scsipi/scsipi_all.h> 87 #include <dev/scsipi/scsipi_cd.h> 88 #include <dev/scsipi/scsipi_disk.h> /* rw_big and start_stop come */ 89 #include <dev/scsipi/scsi_all.h> 90 /* from there */ 91 #include <dev/scsipi/scsi_disk.h> /* rw comes from there */ 92 #include <dev/scsipi/scsipiconf.h> 93 #include <dev/scsipi/scsipi_base.h> 94 #include <dev/scsipi/cdvar.h> 95 96 #define CDUNIT(z) DISKUNIT(z) 97 #define CDPART(z) DISKPART(z) 98 #define CDMINOR(unit, part) DISKMINOR(unit, part) 99 #define MAKECDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 100 101 #define MAXTRACK 99 102 #define CD_BLOCK_OFFSET 150 103 #define CD_FRAMES 75 104 #define CD_SECS 60 105 106 #define CD_TOC_FORM 0 /* formatted TOC, exposed to userland */ 107 #define CD_TOC_MSINFO 1 /* multi-session info */ 108 #define CD_TOC_RAW 2 /* raw TOC as on disc, unprocessed */ 109 #define CD_TOC_PMA 3 /* PMA, used as intermediate (rare use) */ 110 #define CD_TOC_ATIP 4 /* pressed space of recordable */ 111 #define CD_TOC_CDTEXT 5 /* special CD-TEXT, rarely used */ 112 113 struct cd_formatted_toc { 114 struct ioc_toc_header header; 115 struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */ 116 /* leadout */ 117 }; 118 119 static void cdstart(struct scsipi_periph *); 120 static void cdrestart(void *); 121 static void cdminphys(struct buf *); 122 static void cdgetdefaultlabel(struct cd_softc *, struct disklabel *); 123 static void cdgetdisklabel(struct cd_softc *); 124 static void cddone(struct scsipi_xfer *, int); 125 static void cdbounce(struct buf *); 126 static int cd_interpret_sense(struct scsipi_xfer *); 127 static u_long cd_size(struct cd_softc *, int); 128 static int cd_play(struct cd_softc *, int, int); 129 static int cd_play_tracks(struct cd_softc *, int, int, int, int); 130 static int cd_play_msf(struct cd_softc *, int, int, int, int, int, int); 131 static int cd_pause(struct cd_softc *, int); 132 static int cd_reset(struct cd_softc *); 133 static int cd_read_subchannel(struct cd_softc *, int, int, int, 134 struct cd_sub_channel_info *, int, int); 135 static int cd_read_toc(struct cd_softc *, int, int, int, void *, int, int, int); 136 static int cd_get_parms(struct cd_softc *, int); 137 static int cd_load_toc(struct cd_softc *, int, struct cd_formatted_toc *, int); 138 static int cdreadmsaddr(struct cd_softc *, int *); 139 140 static int dvd_auth(struct cd_softc *, dvd_authinfo *); 141 static int dvd_read_physical(struct cd_softc *, dvd_struct *); 142 static int dvd_read_copyright(struct cd_softc *, dvd_struct *); 143 static int dvd_read_disckey(struct cd_softc *, dvd_struct *); 144 static int dvd_read_bca(struct cd_softc *, dvd_struct *); 145 static int dvd_read_manufact(struct cd_softc *, dvd_struct *); 146 static int dvd_read_struct(struct cd_softc *, dvd_struct *); 147 148 static int cd_mode_sense(struct cd_softc *, u_int8_t, void *, size_t, int, 149 int, int *); 150 static int cd_mode_select(struct cd_softc *, u_int8_t, void *, size_t, 151 int, int); 152 static int cd_setchan(struct cd_softc *, int, int, int, int, int); 153 static int cd_getvol(struct cd_softc *, struct ioc_vol *, int); 154 static int cd_setvol(struct cd_softc *, const struct ioc_vol *, int); 155 static int cd_set_pa_immed(struct cd_softc *, int); 156 static int cd_load_unload(struct cd_softc *, struct ioc_load_unload *); 157 static int cd_setblksize(struct cd_softc *); 158 159 static int cdmatch(struct device *, struct cfdata *, void *); 160 static void cdattach(struct device *, struct device *, void *); 161 static int cdactivate(struct device *, enum devact); 162 static int cddetach(struct device *, int); 163 164 CFATTACH_DECL(cd, sizeof(struct cd_softc), cdmatch, cdattach, cddetach, 165 cdactivate); 166 167 extern struct cfdriver cd_cd; 168 169 static const struct scsipi_inquiry_pattern cd_patterns[] = { 170 {T_CDROM, T_REMOV, 171 "", "", ""}, 172 {T_WORM, T_REMOV, 173 "", "", ""}, 174 #if 0 175 {T_CDROM, T_REMOV, /* more luns */ 176 "PIONEER ", "CD-ROM DRM-600 ", ""}, 177 #endif 178 {T_DIRECT, T_REMOV, 179 "NEC CD-ROM DRIVE:260", "", ""}, 180 }; 181 182 static dev_type_open(cdopen); 183 static dev_type_close(cdclose); 184 static dev_type_read(cdread); 185 static dev_type_write(cdwrite); 186 static dev_type_ioctl(cdioctl); 187 static dev_type_strategy(cdstrategy); 188 static dev_type_dump(cddump); 189 static dev_type_size(cdsize); 190 191 const struct bdevsw cd_bdevsw = { 192 cdopen, cdclose, cdstrategy, cdioctl, cddump, cdsize, D_DISK 193 }; 194 195 const struct cdevsw cd_cdevsw = { 196 cdopen, cdclose, cdread, cdwrite, cdioctl, 197 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 198 }; 199 200 static struct dkdriver cddkdriver = { cdstrategy }; 201 202 static const struct scsipi_periphsw cd_switch = { 203 cd_interpret_sense, /* use our error handler first */ 204 cdstart, /* we have a queue, which is started by this */ 205 NULL, /* we do not have an async handler */ 206 cddone, /* deal with stats at interrupt time */ 207 }; 208 209 /* 210 * The routine called by the low level scsi routine when it discovers 211 * A device suitable for this driver 212 */ 213 static int 214 cdmatch(struct device *parent, struct cfdata *match, void *aux) 215 { 216 struct scsipibus_attach_args *sa = aux; 217 int priority; 218 219 (void)scsipi_inqmatch(&sa->sa_inqbuf, 220 cd_patterns, sizeof(cd_patterns) / sizeof(cd_patterns[0]), 221 sizeof(cd_patterns[0]), &priority); 222 223 return (priority); 224 } 225 226 static void 227 cdattach(struct device *parent, struct device *self, void *aux) 228 { 229 struct cd_softc *cd = (void *)self; 230 struct scsipibus_attach_args *sa = aux; 231 struct scsipi_periph *periph = sa->sa_periph; 232 233 SC_DEBUG(periph, SCSIPI_DB2, ("cdattach: ")); 234 235 lockinit(&cd->sc_lock, PRIBIO | PCATCH, "cdlock", 0, 0); 236 237 if (scsipi_periph_bustype(sa->sa_periph) == SCSIPI_BUSTYPE_SCSI && 238 periph->periph_version == 0) 239 cd->flags |= CDF_ANCIENT; 240 241 bufq_alloc(&cd->buf_queue, "disksort", BUFQ_SORT_RAWBLOCK); 242 243 callout_init(&cd->sc_callout); 244 245 /* 246 * Store information needed to contact our base driver 247 */ 248 cd->sc_periph = periph; 249 250 periph->periph_dev = &cd->sc_dev; 251 periph->periph_switch = &cd_switch; 252 253 /* 254 * Increase our openings to the maximum-per-periph 255 * supported by the adapter. This will either be 256 * clamped down or grown by the adapter if necessary. 257 */ 258 periph->periph_openings = 259 SCSIPI_CHAN_MAX_PERIPH(periph->periph_channel); 260 periph->periph_flags |= PERIPH_GROW_OPENINGS; 261 262 /* 263 * Initialize and attach the disk structure. 264 */ 265 cd->sc_dk.dk_driver = &cddkdriver; 266 cd->sc_dk.dk_name = cd->sc_dev.dv_xname; 267 disk_attach(&cd->sc_dk); 268 269 printf("\n"); 270 271 #if NRND > 0 272 rnd_attach_source(&cd->rnd_source, cd->sc_dev.dv_xname, 273 RND_TYPE_DISK, 0); 274 #endif 275 } 276 277 static int 278 cdactivate(struct device *self, enum devact act) 279 { 280 int rv = 0; 281 282 switch (act) { 283 case DVACT_ACTIVATE: 284 rv = EOPNOTSUPP; 285 break; 286 287 case DVACT_DEACTIVATE: 288 /* 289 * Nothing to do; we key off the device's DVF_ACTIVE. 290 */ 291 break; 292 } 293 return (rv); 294 } 295 296 static int 297 cddetach(struct device *self, int flags) 298 { 299 struct cd_softc *cd = (struct cd_softc *) self; 300 int s, bmaj, cmaj, i, mn; 301 302 /* locate the major number */ 303 bmaj = bdevsw_lookup_major(&cd_bdevsw); 304 cmaj = cdevsw_lookup_major(&cd_cdevsw); 305 306 /* Nuke the vnodes for any open instances */ 307 for (i = 0; i < MAXPARTITIONS; i++) { 308 mn = CDMINOR(self->dv_unit, i); 309 vdevgone(bmaj, mn, mn, VBLK); 310 vdevgone(cmaj, mn, mn, VCHR); 311 } 312 313 /* kill any pending restart */ 314 callout_stop(&cd->sc_callout); 315 316 s = splbio(); 317 318 /* Kill off any queued buffers. */ 319 bufq_drain(cd->buf_queue); 320 321 bufq_free(cd->buf_queue); 322 323 /* Kill off any pending commands. */ 324 scsipi_kill_pending(cd->sc_periph); 325 326 splx(s); 327 328 lockmgr(&cd->sc_lock, LK_DRAIN, 0); 329 330 /* Detach from the disk list. */ 331 disk_detach(&cd->sc_dk); 332 333 #if 0 334 /* Get rid of the shutdown hook. */ 335 if (cd->sc_sdhook != NULL) 336 shutdownhook_disestablish(cd->sc_sdhook); 337 #endif 338 339 #if NRND > 0 340 /* Unhook the entropy source. */ 341 rnd_detach_source(&cd->rnd_source); 342 #endif 343 344 return (0); 345 } 346 347 /* 348 * open the device. Make sure the partition info is a up-to-date as can be. 349 */ 350 static int 351 cdopen(dev_t dev, int flag, int fmt, struct lwp *l) 352 { 353 struct cd_softc *cd; 354 struct scsipi_periph *periph; 355 struct scsipi_adapter *adapt; 356 int unit, part; 357 int error; 358 int rawpart; 359 360 unit = CDUNIT(dev); 361 if (unit >= cd_cd.cd_ndevs) 362 return (ENXIO); 363 cd = cd_cd.cd_devs[unit]; 364 if (cd == NULL) 365 return (ENXIO); 366 367 periph = cd->sc_periph; 368 adapt = periph->periph_channel->chan_adapter; 369 part = CDPART(dev); 370 371 SC_DEBUG(periph, SCSIPI_DB1, 372 ("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit, 373 cd_cd.cd_ndevs, CDPART(dev))); 374 375 /* 376 * If this is the first open of this device, add a reference 377 * to the adapter. 378 */ 379 if (cd->sc_dk.dk_openmask == 0 && 380 (error = scsipi_adapter_addref(adapt)) != 0) 381 return (error); 382 383 if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 384 goto bad4; 385 386 rawpart = (part == RAW_PART && fmt == S_IFCHR); 387 if ((periph->periph_flags & PERIPH_OPEN) != 0) { 388 /* 389 * If any partition is open, but the disk has been invalidated, 390 * disallow further opens. 391 */ 392 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 && 393 !rawpart) { 394 error = EIO; 395 goto bad3; 396 } 397 } else { 398 int silent; 399 400 if (rawpart) 401 silent = XS_CTL_SILENT; 402 else 403 silent = 0; 404 405 /* Check that it is still responding and ok. */ 406 error = scsipi_test_unit_ready(periph, 407 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 408 silent); 409 410 /* 411 * Start the pack spinning if necessary. Always allow the 412 * raw parition to be opened, for raw IOCTLs. Data transfers 413 * will check for SDEV_MEDIA_LOADED. 414 */ 415 if (error == EIO) { 416 int error2; 417 418 error2 = scsipi_start(periph, SSS_START, silent); 419 switch (error2) { 420 case 0: 421 error = 0; 422 break; 423 case EIO: 424 case EINVAL: 425 break; 426 default: 427 error = error2; 428 break; 429 } 430 } 431 if (error) { 432 if (rawpart) 433 goto out; 434 goto bad3; 435 } 436 437 periph->periph_flags |= PERIPH_OPEN; 438 439 /* Lock the pack in. */ 440 error = scsipi_prevent(periph, SPAMR_PREVENT_DT, 441 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 442 SC_DEBUG(periph, SCSIPI_DB1, 443 ("cdopen: scsipi_prevent, error=%d\n", error)); 444 if (error) { 445 if (rawpart) 446 goto out; 447 goto bad; 448 } 449 450 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 451 /* Load the physical device parameters. */ 452 if (cd_get_parms(cd, 0) != 0) { 453 if (rawpart) 454 goto out; 455 error = ENXIO; 456 goto bad; 457 } 458 periph->periph_flags |= PERIPH_MEDIA_LOADED; 459 SC_DEBUG(periph, SCSIPI_DB3, ("Params loaded ")); 460 461 /* Fabricate a disk label. */ 462 cdgetdisklabel(cd); 463 SC_DEBUG(periph, SCSIPI_DB3, ("Disklabel fabricated ")); 464 } 465 } 466 467 /* Check that the partition exists. */ 468 if (part != RAW_PART && 469 (part >= cd->sc_dk.dk_label->d_npartitions || 470 cd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 471 error = ENXIO; 472 goto bad; 473 } 474 475 out: /* Insure only one open at a time. */ 476 switch (fmt) { 477 case S_IFCHR: 478 cd->sc_dk.dk_copenmask |= (1 << part); 479 break; 480 case S_IFBLK: 481 cd->sc_dk.dk_bopenmask |= (1 << part); 482 break; 483 } 484 cd->sc_dk.dk_openmask = 485 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 486 487 SC_DEBUG(periph, SCSIPI_DB3, ("open complete\n")); 488 lockmgr(&cd->sc_lock, LK_RELEASE, NULL); 489 return (0); 490 491 periph->periph_flags &= ~PERIPH_MEDIA_LOADED; 492 493 bad: 494 if (cd->sc_dk.dk_openmask == 0) { 495 scsipi_prevent(periph, SPAMR_ALLOW, 496 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 497 periph->periph_flags &= ~PERIPH_OPEN; 498 } 499 500 bad3: 501 lockmgr(&cd->sc_lock, LK_RELEASE, NULL); 502 bad4: 503 if (cd->sc_dk.dk_openmask == 0) 504 scsipi_adapter_delref(adapt); 505 return (error); 506 } 507 508 /* 509 * close the device.. only called if we are the LAST 510 * occurence of an open device 511 */ 512 static int 513 cdclose(dev_t dev, int flag, int fmt, struct lwp *l) 514 { 515 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 516 struct scsipi_periph *periph = cd->sc_periph; 517 struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter; 518 int part = CDPART(dev); 519 int error; 520 521 if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 522 return (error); 523 524 switch (fmt) { 525 case S_IFCHR: 526 cd->sc_dk.dk_copenmask &= ~(1 << part); 527 break; 528 case S_IFBLK: 529 cd->sc_dk.dk_bopenmask &= ~(1 << part); 530 break; 531 } 532 cd->sc_dk.dk_openmask = 533 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 534 535 if (cd->sc_dk.dk_openmask == 0) { 536 scsipi_wait_drain(periph); 537 538 scsipi_prevent(periph, SPAMR_ALLOW, 539 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 540 XS_CTL_IGNORE_NOT_READY); 541 periph->periph_flags &= ~PERIPH_OPEN; 542 543 scsipi_wait_drain(periph); 544 545 scsipi_adapter_delref(adapt); 546 } 547 548 lockmgr(&cd->sc_lock, LK_RELEASE, NULL); 549 return (0); 550 } 551 552 /* 553 * Actually translate the requested transfer into one the physical driver can 554 * understand. The transfer is described by a buf and will include only one 555 * physical transfer. 556 */ 557 static void 558 cdstrategy(struct buf *bp) 559 { 560 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 561 struct disklabel *lp; 562 struct scsipi_periph *periph = cd->sc_periph; 563 daddr_t blkno; 564 int s; 565 566 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdstrategy ")); 567 SC_DEBUG(cd->sc_periph, SCSIPI_DB1, 568 ("%d bytes @ blk %" PRId64 "\n", bp->b_bcount, bp->b_blkno)); 569 /* 570 * If the device has been made invalid, error out 571 * maybe the media changed 572 */ 573 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 574 if (periph->periph_flags & PERIPH_OPEN) 575 bp->b_error = EIO; 576 else 577 bp->b_error = ENODEV; 578 goto bad; 579 } 580 581 lp = cd->sc_dk.dk_label; 582 583 /* 584 * The transfer must be a whole number of blocks, offset must not 585 * be negative. 586 */ 587 if ((bp->b_bcount % lp->d_secsize) != 0 || 588 bp->b_blkno < 0 ) { 589 bp->b_error = EINVAL; 590 goto bad; 591 } 592 /* 593 * If it's a null transfer, return immediately 594 */ 595 if (bp->b_bcount == 0) 596 goto done; 597 598 /* 599 * Do bounds checking, adjust transfer. if error, process. 600 * If end of partition, just return. 601 */ 602 if (CDPART(bp->b_dev) == RAW_PART) { 603 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 604 cd->params.disksize512) <= 0) 605 goto done; 606 } else { 607 if (bounds_check_with_label(&cd->sc_dk, bp, 608 (cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0) 609 goto done; 610 } 611 612 /* 613 * Now convert the block number to absolute and put it in 614 * terms of the device's logical block size. 615 */ 616 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 617 if (CDPART(bp->b_dev) != RAW_PART) 618 blkno += lp->d_partitions[CDPART(bp->b_dev)].p_offset; 619 620 bp->b_rawblkno = blkno; 621 622 /* 623 * If the disklabel sector size does not match the device 624 * sector size we may need to do some extra work. 625 */ 626 if (lp->d_secsize != cd->params.blksize) { 627 628 /* 629 * If the xfer is not a multiple of the device block size 630 * or it is not block aligned, we need to bounce it. 631 */ 632 if ((bp->b_bcount % cd->params.blksize) != 0 || 633 ((blkno * lp->d_secsize) % cd->params.blksize) != 0) { 634 struct buf *nbp; 635 void *bounce = NULL; 636 long count; 637 638 if ((bp->b_flags & B_READ) == 0) { 639 640 /* XXXX We don't support bouncing writes. */ 641 bp->b_error = EACCES; 642 goto bad; 643 } 644 count = ((blkno * lp->d_secsize) % cd->params.blksize); 645 /* XXX Store starting offset in bp->b_rawblkno */ 646 bp->b_rawblkno = count; 647 648 count += bp->b_bcount; 649 count = roundup(count, cd->params.blksize); 650 651 blkno = ((blkno * lp->d_secsize) / cd->params.blksize); 652 s = splbio(); 653 nbp = pool_get(&bufpool, PR_NOWAIT); 654 splx(s); 655 if (!nbp) { 656 /* No memory -- fail the iop. */ 657 bp->b_error = ENOMEM; 658 goto bad; 659 } 660 bounce = malloc(count, M_DEVBUF, M_NOWAIT); 661 if (!bounce) { 662 /* No memory -- fail the iop. */ 663 s = splbio(); 664 pool_put(&bufpool, nbp); 665 splx(s); 666 bp->b_error = ENOMEM; 667 goto bad; 668 } 669 670 /* Set up the IOP to the bounce buffer. */ 671 BUF_INIT(nbp); 672 nbp->b_error = 0; 673 nbp->b_proc = bp->b_proc; 674 nbp->b_vp = NULLVP; 675 676 nbp->b_bcount = count; 677 nbp->b_bufsize = count; 678 nbp->b_data = bounce; 679 680 nbp->b_rawblkno = blkno; 681 682 /* We need to do a read-modify-write operation */ 683 nbp->b_flags = bp->b_flags | B_READ | B_CALL; 684 nbp->b_iodone = cdbounce; 685 686 /* Put ptr to orig buf in b_private and use new buf */ 687 nbp->b_private = bp; 688 689 BIO_COPYPRIO(nbp, bp); 690 691 bp = nbp; 692 693 } else { 694 /* Xfer is aligned -- just adjust the start block */ 695 bp->b_rawblkno = (blkno * lp->d_secsize) / 696 cd->params.blksize; 697 } 698 } 699 s = splbio(); 700 701 /* 702 * Place it in the queue of disk activities for this disk. 703 * 704 * XXX Only do disksort() if the current operating mode does not 705 * XXX include tagged queueing. 706 */ 707 BUFQ_PUT(cd->buf_queue, bp); 708 709 /* 710 * Tell the device to get going on the transfer if it's 711 * not doing anything, otherwise just wait for completion 712 */ 713 cdstart(cd->sc_periph); 714 715 splx(s); 716 return; 717 718 bad: 719 bp->b_flags |= B_ERROR; 720 done: 721 /* 722 * Correctly set the buf to indicate a completed xfer 723 */ 724 bp->b_resid = bp->b_bcount; 725 biodone(bp); 726 } 727 728 /* 729 * cdstart looks to see if there is a buf waiting for the device 730 * and that the device is not already busy. If both are true, 731 * It deques the buf and creates a scsi command to perform the 732 * transfer in the buf. The transfer request will call scsipi_done 733 * on completion, which will in turn call this routine again 734 * so that the next queued transfer is performed. 735 * The bufs are queued by the strategy routine (cdstrategy) 736 * 737 * This routine is also called after other non-queued requests 738 * have been made of the scsi driver, to ensure that the queue 739 * continues to be drained. 740 * 741 * must be called at the correct (highish) spl level 742 * cdstart() is called at splbio from cdstrategy, cdrestart and scsipi_done 743 */ 744 static void 745 cdstart(struct scsipi_periph *periph) 746 { 747 struct cd_softc *cd = (void *)periph->periph_dev; 748 struct buf *bp = 0; 749 struct scsipi_rw_10 cmd_big; 750 struct scsi_rw_6 cmd_small; 751 struct scsipi_generic *cmdp; 752 struct scsipi_xfer *xs; 753 int flags, nblks, cmdlen, error; 754 755 SC_DEBUG(periph, SCSIPI_DB2, ("cdstart ")); 756 /* 757 * Check if the device has room for another command 758 */ 759 while (periph->periph_active < periph->periph_openings) { 760 /* 761 * there is excess capacity, but a special waits 762 * It'll need the adapter as soon as we clear out of the 763 * way and let it run (user level wait). 764 */ 765 if (periph->periph_flags & PERIPH_WAITING) { 766 periph->periph_flags &= ~PERIPH_WAITING; 767 wakeup((caddr_t)periph); 768 return; 769 } 770 771 /* 772 * If the device has become invalid, abort all the 773 * reads and writes until all files have been closed and 774 * re-opened 775 */ 776 if (__predict_false( 777 (periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)) { 778 if ((bp = BUFQ_GET(cd->buf_queue)) != NULL) { 779 bp->b_error = EIO; 780 bp->b_flags |= B_ERROR; 781 bp->b_resid = bp->b_bcount; 782 biodone(bp); 783 continue; 784 } else { 785 return; 786 } 787 } 788 789 /* 790 * See if there is a buf with work for us to do.. 791 */ 792 if ((bp = BUFQ_PEEK(cd->buf_queue)) == NULL) 793 return; 794 795 /* 796 * We have a buf, now we should make a command. 797 */ 798 799 nblks = howmany(bp->b_bcount, cd->params.blksize); 800 801 /* 802 * Fill out the scsi command. If the transfer will 803 * fit in a "small" cdb, use it. 804 */ 805 if (((bp->b_rawblkno & 0x1fffff) == bp->b_rawblkno) && 806 ((nblks & 0xff) == nblks) && 807 !(periph->periph_quirks & PQUIRK_ONLYBIG)) { 808 /* 809 * We can fit in a small cdb. 810 */ 811 memset(&cmd_small, 0, sizeof(cmd_small)); 812 cmd_small.opcode = (bp->b_flags & B_READ) ? 813 SCSI_READ_6_COMMAND : SCSI_WRITE_6_COMMAND; 814 _lto3b(bp->b_rawblkno, cmd_small.addr); 815 cmd_small.length = nblks & 0xff; 816 cmdlen = sizeof(cmd_small); 817 cmdp = (struct scsipi_generic *)&cmd_small; 818 } else { 819 /* 820 * Need a large cdb. 821 */ 822 memset(&cmd_big, 0, sizeof(cmd_big)); 823 cmd_big.opcode = (bp->b_flags & B_READ) ? 824 READ_10 : WRITE_10; 825 _lto4b(bp->b_rawblkno, cmd_big.addr); 826 _lto2b(nblks, cmd_big.length); 827 cmdlen = sizeof(cmd_big); 828 cmdp = (struct scsipi_generic *)&cmd_big; 829 } 830 831 /* Instrumentation. */ 832 disk_busy(&cd->sc_dk); 833 834 /* 835 * Figure out what flags to use. 836 */ 837 flags = XS_CTL_NOSLEEP|XS_CTL_ASYNC|XS_CTL_SIMPLE_TAG; 838 if (bp->b_flags & B_READ) 839 flags |= XS_CTL_DATA_IN; 840 else 841 flags |= XS_CTL_DATA_OUT; 842 843 /* 844 * Call the routine that chats with the adapter. 845 * Note: we cannot sleep as we may be an interrupt 846 */ 847 xs = scsipi_make_xs(periph, cmdp, cmdlen, 848 (u_char *)bp->b_data, bp->b_bcount, 849 CDRETRIES, 30000, bp, flags); 850 if (__predict_false(xs == NULL)) { 851 /* 852 * out of memory. Keep this buffer in the queue, and 853 * retry later. 854 */ 855 callout_reset(&cd->sc_callout, hz / 2, cdrestart, 856 periph); 857 return; 858 } 859 /* 860 * need to dequeue the buffer before queuing the command, 861 * because cdstart may be called recursively from the 862 * HBA driver 863 */ 864 #ifdef DIAGNOSTIC 865 if (BUFQ_GET(cd->buf_queue) != bp) 866 panic("cdstart(): dequeued wrong buf"); 867 #else 868 BUFQ_GET(cd->buf_queue); 869 #endif 870 error = scsipi_execute_xs(xs); 871 /* with a scsipi_xfer preallocated, scsipi_command can't fail */ 872 KASSERT(error == 0); 873 } 874 } 875 876 static void 877 cdrestart(void *v) 878 { 879 int s = splbio(); 880 cdstart((struct scsipi_periph *)v); 881 splx(s); 882 } 883 884 static void 885 cddone(struct scsipi_xfer *xs, int error) 886 { 887 struct cd_softc *cd = (void *)xs->xs_periph->periph_dev; 888 struct buf *bp = xs->bp; 889 890 if (bp) { 891 bp->b_error = error; 892 bp->b_resid = xs->resid; 893 if (error) 894 bp->b_flags |= B_ERROR; 895 896 disk_unbusy(&cd->sc_dk, bp->b_bcount - bp->b_resid, 897 (bp->b_flags & B_READ)); 898 #if NRND > 0 899 rnd_add_uint32(&cd->rnd_source, bp->b_rawblkno); 900 #endif 901 902 biodone(bp); 903 } 904 } 905 906 static void 907 cdbounce(struct buf *bp) 908 { 909 struct buf *obp = (struct buf *)bp->b_private; 910 911 if (bp->b_flags & B_ERROR) { 912 /* EEK propagate the error and free the memory */ 913 goto done; 914 } 915 if (obp->b_flags & B_READ) { 916 /* Copy data to the final destination and free the buf. */ 917 memcpy(obp->b_data, bp->b_data+obp->b_rawblkno, 918 obp->b_bcount); 919 } else { 920 /* 921 * XXXX This is a CD-ROM -- READ ONLY -- why do we bother with 922 * XXXX any of this write stuff? 923 */ 924 if (bp->b_flags & B_READ) { 925 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 926 struct buf *nbp; 927 int s; 928 929 /* Read part of RMW complete. */ 930 memcpy(bp->b_data+obp->b_rawblkno, obp->b_data, 931 obp->b_bcount); 932 933 s = splbio(); 934 935 /* We need to alloc a new buf. */ 936 nbp = pool_get(&bufpool, PR_NOWAIT); 937 if (!nbp) { 938 splx(s); 939 /* No buf available. */ 940 bp->b_flags |= B_ERROR; 941 bp->b_error = ENOMEM; 942 bp->b_resid = bp->b_bcount; 943 } 944 945 /* Set up the IOP to the bounce buffer. */ 946 BUF_INIT(nbp); 947 nbp->b_error = 0; 948 nbp->b_proc = bp->b_proc; 949 nbp->b_vp = NULLVP; 950 951 nbp->b_bcount = bp->b_bcount; 952 nbp->b_bufsize = bp->b_bufsize; 953 nbp->b_data = bp->b_data; 954 955 nbp->b_rawblkno = bp->b_rawblkno; 956 957 /* We need to do a read-modify-write operation */ 958 nbp->b_flags = obp->b_flags | B_CALL; 959 nbp->b_iodone = cdbounce; 960 961 /* Put ptr to orig buf in b_private and use new buf */ 962 nbp->b_private = obp; 963 964 /* 965 * Place it in the queue of disk activities for this 966 * disk. 967 * 968 * XXX Only do disksort() if the current operating mode 969 * XXX does not include tagged queueing. 970 */ 971 BUFQ_PUT(cd->buf_queue, nbp); 972 973 /* 974 * Tell the device to get going on the transfer if it's 975 * not doing anything, otherwise just wait for 976 * completion 977 */ 978 cdstart(cd->sc_periph); 979 980 splx(s); 981 return; 982 983 } 984 } 985 done: 986 obp->b_flags |= (bp->b_flags&(B_EINTR|B_ERROR)); 987 obp->b_error = bp->b_error; 988 obp->b_resid = bp->b_resid; 989 free(bp->b_data, M_DEVBUF); 990 biodone(obp); 991 } 992 993 static int 994 cd_interpret_sense(struct scsipi_xfer *xs) 995 { 996 struct scsipi_periph *periph = xs->xs_periph; 997 struct scsi_sense_data *sense = &xs->sense.scsi_sense; 998 int retval = EJUSTRETURN; 999 1000 /* 1001 * If it isn't a extended or extended/deferred error, let 1002 * the generic code handle it. 1003 */ 1004 if (SSD_RCODE(sense->response_code) != SSD_RCODE_CURRENT && 1005 SSD_RCODE(sense->response_code) != SSD_RCODE_DEFERRED) 1006 return (retval); 1007 1008 /* 1009 * If we got a "Unit not ready" (SKEY_NOT_READY) and "Logical Unit 1010 * Is In The Process of Becoming Ready" (Sense code 0x04,0x01), then 1011 * wait a bit for the drive to spin up 1012 */ 1013 1014 if (SSD_SENSE_KEY(sense->flags) == SKEY_NOT_READY && 1015 sense->asc == 0x4 && 1016 sense->ascq == 0x01) { 1017 /* 1018 * Sleep for 5 seconds to wait for the drive to spin up 1019 */ 1020 1021 SC_DEBUG(periph, SCSIPI_DB1, ("Waiting 5 sec for CD " 1022 "spinup\n")); 1023 if (!callout_pending(&periph->periph_callout)) 1024 scsipi_periph_freeze(periph, 1); 1025 callout_reset(&periph->periph_callout, 1026 5 * hz, scsipi_periph_timed_thaw, periph); 1027 retval = ERESTART; 1028 } 1029 return (retval); 1030 } 1031 1032 static void 1033 cdminphys(struct buf *bp) 1034 { 1035 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 1036 long xmax; 1037 1038 /* 1039 * If the device is ancient, we want to make sure that 1040 * the transfer fits into a 6-byte cdb. 1041 * 1042 * XXX Note that the SCSI-I spec says that 256-block transfers 1043 * are allowed in a 6-byte read/write, and are specified 1044 * by settng the "length" to 0. However, we're conservative 1045 * here, allowing only 255-block transfers in case an 1046 * ancient device gets confused by length == 0. A length of 0 1047 * in a 10-byte read/write actually means 0 blocks. 1048 */ 1049 if (cd->flags & CDF_ANCIENT) { 1050 xmax = cd->sc_dk.dk_label->d_secsize * 0xff; 1051 1052 if (bp->b_bcount > xmax) 1053 bp->b_bcount = xmax; 1054 } 1055 1056 (*cd->sc_periph->periph_channel->chan_adapter->adapt_minphys)(bp); 1057 } 1058 1059 static int 1060 cdread(dev_t dev, struct uio *uio, int ioflag) 1061 { 1062 1063 return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio)); 1064 } 1065 1066 static int 1067 cdwrite(dev_t dev, struct uio *uio, int ioflag) 1068 { 1069 1070 return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio)); 1071 } 1072 1073 #if 0 /* XXX Not used */ 1074 /* 1075 * conversion between minute-seconde-frame and logical block address 1076 * addresses format 1077 */ 1078 static void 1079 lba2msf(u_long lba, u_char *m, u_char *s, u_char *f) 1080 { 1081 u_long tmp; 1082 1083 tmp = lba + CD_BLOCK_OFFSET; /* offset of first logical frame */ 1084 tmp &= 0xffffff; /* negative lbas use only 24 bits */ 1085 *m = tmp / (CD_SECS * CD_FRAMES); 1086 tmp %= (CD_SECS * CD_FRAMES); 1087 *s = tmp / CD_FRAMES; 1088 *f = tmp % CD_FRAMES; 1089 } 1090 1091 /* 1092 * Convert an hour:minute:second:frame address to a logical block adres. In 1093 * theory the number of secs/minute and number of frames/second could be 1094 * configured differently in the device as could the block offset but in 1095 * practice these values are rock solid and most drives don't even allow 1096 * theses values to be changed. 1097 */ 1098 static uint32_t 1099 hmsf2lba(uint8_t h, uint8_t m, uint8_t s, uint8_t f) 1100 { 1101 return (((((uint32_t) h * 60 + m) * CD_SECS) + s) * CD_FRAMES + f) 1102 - CD_BLOCK_OFFSET; 1103 } 1104 #endif /* XXX Not used */ 1105 1106 static int 1107 cdreadmsaddr(struct cd_softc *cd, int *addr) 1108 { 1109 struct scsipi_periph *periph = cd->sc_periph; 1110 int error; 1111 struct cd_formatted_toc toc; 1112 struct cd_toc_entry *cte; 1113 1114 error = cd_read_toc(cd, CD_TOC_FORM, 0, 0, &toc, 1115 sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry), 1116 XS_CTL_DATA_ONSTACK, 1117 0x40 /* control word for "get MS info" */); 1118 1119 if (error) 1120 return (error); 1121 1122 cte = &toc.entries[0]; 1123 if (periph->periph_quirks & PQUIRK_LITTLETOC) { 1124 cte->addr.lba = le32toh(cte->addr.lba); 1125 toc.header.len = le16toh(toc.header.len); 1126 } else { 1127 cte->addr.lba = be32toh(cte->addr.lba); 1128 toc.header.len = be16toh(toc.header.len); 1129 } 1130 1131 *addr = (toc.header.len >= 10 && cte->track > 1) ? 1132 cte->addr.lba : 0; 1133 return 0; 1134 } 1135 1136 /* synchronise caches code from sd.c, move to scsipi_ioctl.c ? */ 1137 static int 1138 cdcachesync(struct scsipi_periph *periph, int flags) { 1139 struct scsi_synchronize_cache_10 cmd; 1140 1141 /* 1142 * Issue a SYNCHRONIZE CACHE. MMC devices have to issue with address 0 1143 * and length 0 as it can't synchronise parts of the disc per spec. 1144 * We ignore ILLEGAL REQUEST in the event that the command is not 1145 * supported by the device, and poll for completion so that we know 1146 * that the cache has actually been flushed. 1147 * 1148 * XXX should we handle the PQUIRK_NOSYNCCACHE ? 1149 */ 1150 1151 memset(&cmd, 0, sizeof(cmd)); 1152 cmd.opcode = SCSI_SYNCHRONIZE_CACHE_10; 1153 1154 return (scsipi_command(periph, (void *)&cmd, sizeof(cmd), 0, 0, 1155 CDRETRIES, 30000, NULL, flags | XS_CTL_IGNORE_ILLEGAL_REQUEST)); 1156 } 1157 1158 /* 1159 * Perform special action on behalf of the user. 1160 * Knows about the internals of this device 1161 */ 1162 static int 1163 cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct lwp *l) 1164 { 1165 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 1166 struct scsipi_periph *periph = cd->sc_periph; 1167 int part = CDPART(dev); 1168 int error = 0; 1169 #ifdef __HAVE_OLD_DISKLABEL 1170 struct disklabel *newlabel = NULL; 1171 #endif 1172 1173 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdioctl 0x%lx ", cmd)); 1174 1175 /* 1176 * If the device is not valid, some IOCTLs can still be 1177 * handled on the raw partition. Check this here. 1178 */ 1179 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 1180 switch (cmd) { 1181 case DIOCWLABEL: 1182 case DIOCLOCK: 1183 case ODIOCEJECT: 1184 case DIOCEJECT: 1185 case DIOCCACHESYNC: 1186 case SCIOCIDENTIFY: 1187 case OSCIOCIDENTIFY: 1188 case SCIOCCOMMAND: 1189 case SCIOCDEBUG: 1190 case CDIOCGETVOL: 1191 case CDIOCSETVOL: 1192 case CDIOCSETMONO: 1193 case CDIOCSETSTEREO: 1194 case CDIOCSETMUTE: 1195 case CDIOCSETLEFT: 1196 case CDIOCSETRIGHT: 1197 case CDIOCCLOSE: 1198 case CDIOCEJECT: 1199 case CDIOCALLOW: 1200 case CDIOCPREVENT: 1201 case CDIOCSETDEBUG: 1202 case CDIOCCLRDEBUG: 1203 case CDIOCRESET: 1204 case SCIOCRESET: 1205 case CDIOCLOADUNLOAD: 1206 case DVD_AUTH: 1207 case DVD_READ_STRUCT: 1208 if (part == RAW_PART) 1209 break; 1210 /* FALLTHROUGH */ 1211 default: 1212 if ((periph->periph_flags & PERIPH_OPEN) == 0) 1213 return (ENODEV); 1214 else 1215 return (EIO); 1216 } 1217 } 1218 1219 switch (cmd) { 1220 case DIOCGDINFO: 1221 *(struct disklabel *)addr = *(cd->sc_dk.dk_label); 1222 return (0); 1223 #ifdef __HAVE_OLD_DISKLABEL 1224 case ODIOCGDINFO: 1225 newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); 1226 if (newlabel == NULL) 1227 return (EIO); 1228 memcpy(newlabel, cd->sc_dk.dk_label, sizeof (*newlabel)); 1229 if (newlabel->d_npartitions > OLDMAXPARTITIONS) 1230 error = ENOTTY; 1231 else 1232 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1233 free(newlabel, M_TEMP); 1234 return error; 1235 #endif 1236 1237 case DIOCGPART: 1238 ((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label; 1239 ((struct partinfo *)addr)->part = 1240 &cd->sc_dk.dk_label->d_partitions[part]; 1241 return (0); 1242 1243 case DIOCWDINFO: 1244 case DIOCSDINFO: 1245 #ifdef __HAVE_OLD_DISKLABEL 1246 case ODIOCWDINFO: 1247 case ODIOCSDINFO: 1248 #endif 1249 { 1250 struct disklabel *lp; 1251 1252 if ((flag & FWRITE) == 0) 1253 return (EBADF); 1254 1255 #ifdef __HAVE_OLD_DISKLABEL 1256 if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { 1257 newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); 1258 if (newlabel == NULL) 1259 return (EIO); 1260 memset(newlabel, 0, sizeof newlabel); 1261 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1262 lp = newlabel; 1263 } else 1264 #endif 1265 lp = (struct disklabel *)addr; 1266 1267 if ((error = lockmgr(&cd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 1268 goto bad; 1269 cd->flags |= CDF_LABELLING; 1270 1271 error = setdisklabel(cd->sc_dk.dk_label, 1272 lp, /*cd->sc_dk.dk_openmask : */0, 1273 cd->sc_dk.dk_cpulabel); 1274 if (error == 0) { 1275 /* XXX ? */ 1276 } 1277 1278 cd->flags &= ~CDF_LABELLING; 1279 lockmgr(&cd->sc_lock, LK_RELEASE, NULL); 1280 bad: 1281 #ifdef __HAVE_OLD_DISKLABEL 1282 if (newlabel != NULL) 1283 free(newlabel, M_TEMP); 1284 #endif 1285 return (error); 1286 } 1287 1288 case DIOCWLABEL: 1289 return (EBADF); 1290 1291 case DIOCGDEFLABEL: 1292 cdgetdefaultlabel(cd, (struct disklabel *)addr); 1293 return (0); 1294 1295 #ifdef __HAVE_OLD_DISKLABEL 1296 case ODIOCGDEFLABEL: 1297 newlabel = malloc(sizeof (*newlabel), M_TEMP, M_WAITOK); 1298 if (newlabel == NULL) 1299 return (EIO); 1300 cdgetdefaultlabel(cd, newlabel); 1301 if (newlabel->d_npartitions > OLDMAXPARTITIONS) 1302 error = ENOTTY; 1303 else 1304 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1305 free(newlabel, M_TEMP); 1306 return error; 1307 #endif 1308 1309 case CDIOCPLAYTRACKS: { 1310 /* PLAY_MSF command */ 1311 struct ioc_play_track *args = (struct ioc_play_track *)addr; 1312 1313 if ((error = cd_set_pa_immed(cd, 0)) != 0) 1314 return (error); 1315 return (cd_play_tracks(cd, args->start_track, 1316 args->start_index, args->end_track, args->end_index)); 1317 } 1318 case CDIOCPLAYMSF: { 1319 /* PLAY_MSF command */ 1320 struct ioc_play_msf *args = (struct ioc_play_msf *)addr; 1321 1322 if ((error = cd_set_pa_immed(cd, 0)) != 0) 1323 return (error); 1324 return (cd_play_msf(cd, args->start_m, args->start_s, 1325 args->start_f, args->end_m, args->end_s, args->end_f)); 1326 } 1327 case CDIOCPLAYBLOCKS: { 1328 /* PLAY command */ 1329 struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr; 1330 1331 if ((error = cd_set_pa_immed(cd, 0)) != 0) 1332 return (error); 1333 return (cd_play(cd, args->blk, args->len)); 1334 } 1335 case CDIOCREADSUBCHANNEL: { 1336 /* READ_SUBCHANNEL command */ 1337 struct ioc_read_subchannel *args = 1338 (struct ioc_read_subchannel *)addr; 1339 struct cd_sub_channel_info data; 1340 u_int len = args->data_len; 1341 1342 if (len > sizeof(data) || 1343 len < sizeof(struct cd_sub_channel_header)) 1344 return (EINVAL); 1345 error = cd_read_subchannel(cd, args->address_format, 1346 args->data_format, args->track, &data, len, 1347 XS_CTL_DATA_ONSTACK); 1348 if (error) 1349 return (error); 1350 len = min(len, _2btol(data.header.data_len) + 1351 sizeof(struct cd_sub_channel_header)); 1352 return (copyout(&data, args->data, len)); 1353 } 1354 case CDIOREADTOCHEADER: { 1355 /* READ TOC format 0 command, static header */ 1356 struct ioc_toc_header th; 1357 1358 if ((error = cd_read_toc(cd, CD_TOC_FORM, 0, 0, &th, sizeof(th), 1359 XS_CTL_DATA_ONSTACK, 0)) != 0) 1360 return (error); 1361 if (cd->sc_periph->periph_quirks & PQUIRK_LITTLETOC) 1362 th.len = le16toh(th.len); 1363 else 1364 th.len = be16toh(th.len); 1365 memcpy(addr, &th, sizeof(th)); 1366 return (0); 1367 } 1368 case CDIOREADTOCENTRYS: { 1369 /* READ TOC format 0 command, entries */ 1370 struct cd_formatted_toc toc; 1371 struct ioc_read_toc_entry *te = 1372 (struct ioc_read_toc_entry *)addr; 1373 struct ioc_toc_header *th; 1374 struct cd_toc_entry *cte; 1375 u_int len = te->data_len; 1376 int ntracks; 1377 1378 th = &toc.header; 1379 1380 if (len > sizeof(toc.entries) || 1381 len < sizeof(struct cd_toc_entry)) 1382 return (EINVAL); 1383 error = cd_read_toc(cd, CD_TOC_FORM, te->address_format, 1384 te->starting_track, &toc, 1385 len + sizeof(struct ioc_toc_header), 1386 XS_CTL_DATA_ONSTACK, 0); 1387 if (error) 1388 return (error); 1389 if (te->address_format == CD_LBA_FORMAT) 1390 for (ntracks = 1391 th->ending_track - th->starting_track + 1; 1392 ntracks >= 0; ntracks--) { 1393 cte = &toc.entries[ntracks]; 1394 cte->addr_type = CD_LBA_FORMAT; 1395 if (periph->periph_quirks & PQUIRK_LITTLETOC) 1396 cte->addr.lba = le32toh(cte->addr.lba); 1397 else 1398 cte->addr.lba = be32toh(cte->addr.lba); 1399 } 1400 if (periph->periph_quirks & PQUIRK_LITTLETOC) 1401 th->len = le16toh(th->len); 1402 else 1403 th->len = be16toh(th->len); 1404 len = min(len, th->len - (sizeof(th->starting_track) + 1405 sizeof(th->ending_track))); 1406 return (copyout(toc.entries, te->data, len)); 1407 } 1408 case CDIOREADMSADDR: { 1409 /* READ TOC format 0 command, length of first track only */ 1410 int sessno = *(int*)addr; 1411 1412 if (sessno != 0) 1413 return (EINVAL); 1414 1415 return (cdreadmsaddr(cd, (int*)addr)); 1416 } 1417 case CDIOCSETPATCH: { 1418 struct ioc_patch *arg = (struct ioc_patch *)addr; 1419 1420 return (cd_setchan(cd, arg->patch[0], arg->patch[1], 1421 arg->patch[2], arg->patch[3], 0)); 1422 } 1423 case CDIOCGETVOL: { 1424 /* MODE SENSE command (AUDIO page) */ 1425 struct ioc_vol *arg = (struct ioc_vol *)addr; 1426 1427 return (cd_getvol(cd, arg, 0)); 1428 } 1429 case CDIOCSETVOL: { 1430 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1431 struct ioc_vol *arg = (struct ioc_vol *)addr; 1432 1433 return (cd_setvol(cd, arg, 0)); 1434 } 1435 case CDIOCSETMONO: 1436 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1437 return (cd_setchan(cd, BOTH_CHANNEL, BOTH_CHANNEL, 1438 MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1439 1440 case CDIOCSETSTEREO: 1441 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1442 return (cd_setchan(cd, LEFT_CHANNEL, RIGHT_CHANNEL, 1443 MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1444 1445 case CDIOCSETMUTE: 1446 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1447 return (cd_setchan(cd, MUTE_CHANNEL, MUTE_CHANNEL, 1448 MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1449 1450 case CDIOCSETLEFT: 1451 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1452 return (cd_setchan(cd, LEFT_CHANNEL, LEFT_CHANNEL, 1453 MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1454 1455 case CDIOCSETRIGHT: 1456 /* MODE SENSE/MODE SELECT commands (AUDIO page) */ 1457 return (cd_setchan(cd, RIGHT_CHANNEL, RIGHT_CHANNEL, 1458 MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1459 1460 case CDIOCRESUME: 1461 /* PAUSE command */ 1462 return (cd_pause(cd, PA_RESUME)); 1463 case CDIOCPAUSE: 1464 /* PAUSE command */ 1465 return (cd_pause(cd, PA_PAUSE)); 1466 case CDIOCSTART: 1467 return (scsipi_start(periph, SSS_START, 0)); 1468 case CDIOCSTOP: 1469 return (scsipi_start(periph, SSS_STOP, 0)); 1470 case CDIOCCLOSE: 1471 return (scsipi_start(periph, SSS_START|SSS_LOEJ, 1472 XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE)); 1473 case DIOCEJECT: 1474 if (*(int *)addr == 0) { 1475 /* 1476 * Don't force eject: check that we are the only 1477 * partition open. If so, unlock it. 1478 */ 1479 if ((cd->sc_dk.dk_openmask & ~(1 << part)) == 0 && 1480 cd->sc_dk.dk_bopenmask + cd->sc_dk.dk_copenmask == 1481 cd->sc_dk.dk_openmask) { 1482 error = scsipi_prevent(periph, SPAMR_ALLOW, 1483 XS_CTL_IGNORE_NOT_READY); 1484 if (error) 1485 return (error); 1486 } else { 1487 return (EBUSY); 1488 } 1489 } 1490 /* FALLTHROUGH */ 1491 case CDIOCEJECT: /* FALLTHROUGH */ 1492 case ODIOCEJECT: 1493 return (scsipi_start(periph, SSS_STOP|SSS_LOEJ, 0)); 1494 case DIOCCACHESYNC: 1495 /* SYNCHRONISE CACHES command */ 1496 return (cdcachesync(periph, 0)); 1497 case CDIOCALLOW: 1498 return (scsipi_prevent(periph, SPAMR_ALLOW, 0)); 1499 case CDIOCPREVENT: 1500 return (scsipi_prevent(periph, SPAMR_PREVENT_DT, 0)); 1501 case DIOCLOCK: 1502 return (scsipi_prevent(periph, 1503 (*(int *)addr) ? SPAMR_PREVENT_DT : SPAMR_ALLOW, 0)); 1504 case CDIOCSETDEBUG: 1505 cd->sc_periph->periph_dbflags |= (SCSIPI_DB1 | SCSIPI_DB2); 1506 return (0); 1507 case CDIOCCLRDEBUG: 1508 cd->sc_periph->periph_dbflags &= ~(SCSIPI_DB1 | SCSIPI_DB2); 1509 return (0); 1510 case CDIOCRESET: 1511 case SCIOCRESET: 1512 return (cd_reset(cd)); 1513 case CDIOCLOADUNLOAD: 1514 /* LOAD_UNLOAD command */ 1515 return (cd_load_unload(cd, (struct ioc_load_unload *)addr)); 1516 case DVD_AUTH: 1517 /* GPCMD_REPORT_KEY or GPCMD_SEND_KEY command */ 1518 return (dvd_auth(cd, (dvd_authinfo *)addr)); 1519 case DVD_READ_STRUCT: 1520 /* GPCMD_READ_DVD_STRUCTURE command */ 1521 return (dvd_read_struct(cd, (dvd_struct *)addr)); 1522 default: 1523 if (part != RAW_PART) 1524 return (ENOTTY); 1525 return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, l)); 1526 } 1527 1528 #ifdef DIAGNOSTIC 1529 panic("cdioctl: impossible"); 1530 #endif 1531 } 1532 1533 static void 1534 cdgetdefaultlabel(struct cd_softc *cd, struct disklabel *lp) 1535 { 1536 int lastsession; 1537 1538 memset(lp, 0, sizeof(struct disklabel)); 1539 1540 lp->d_secsize = cd->params.blksize; 1541 lp->d_ntracks = 1; 1542 lp->d_nsectors = 100; 1543 lp->d_ncylinders = (cd->params.disksize / 100) + 1; 1544 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1545 1546 switch (scsipi_periph_bustype(cd->sc_periph)) { 1547 case SCSIPI_BUSTYPE_SCSI: 1548 lp->d_type = DTYPE_SCSI; 1549 break; 1550 case SCSIPI_BUSTYPE_ATAPI: 1551 lp->d_type = DTYPE_ATAPI; 1552 break; 1553 } 1554 /* 1555 * XXX 1556 * We could probe the mode pages to figure out what kind of disc it is. 1557 * Is this worthwhile? 1558 */ 1559 strncpy(lp->d_typename, "mydisc", 16); 1560 strncpy(lp->d_packname, "fictitious", 16); 1561 lp->d_secperunit = cd->params.disksize; 1562 lp->d_rpm = 300; 1563 lp->d_interleave = 1; 1564 lp->d_flags = D_REMOVABLE; 1565 1566 if (cdreadmsaddr(cd, &lastsession) != 0) 1567 lastsession = 0; 1568 1569 lp->d_partitions[0].p_offset = 0; 1570 #ifdef notyet /* have to fix bounds_check_with_label() first */ 1571 lp->d_partitions[0].p_size = lp->d_secperunit; 1572 #else 1573 lp->d_partitions[0].p_size = 1574 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1575 #endif 1576 lp->d_partitions[0].p_cdsession = lastsession; 1577 lp->d_partitions[0].p_fstype = FS_ISO9660; 1578 lp->d_partitions[RAW_PART].p_offset = 0; 1579 #ifdef notyet 1580 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 1581 #else 1582 lp->d_partitions[RAW_PART].p_size = 1583 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1584 #endif 1585 lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660; 1586 lp->d_npartitions = RAW_PART + 1; 1587 1588 lp->d_magic = DISKMAGIC; 1589 lp->d_magic2 = DISKMAGIC; 1590 lp->d_checksum = dkcksum(lp); 1591 } 1592 1593 /* 1594 * Load the label information on the named device 1595 * Actually fabricate a disklabel 1596 * 1597 * EVENTUALLY take information about different 1598 * data tracks from the TOC and put it in the disklabel 1599 */ 1600 static void 1601 cdgetdisklabel(struct cd_softc *cd) 1602 { 1603 struct disklabel *lp = cd->sc_dk.dk_label; 1604 const char *errstring; 1605 1606 memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1607 1608 cdgetdefaultlabel(cd, lp); 1609 1610 /* 1611 * Call the generic disklabel extraction routine 1612 */ 1613 errstring = readdisklabel(MAKECDDEV(0, cd->sc_dev.dv_unit, RAW_PART), 1614 cdstrategy, lp, cd->sc_dk.dk_cpulabel); 1615 1616 /* if all went OK, we are passed a NULL error string */ 1617 if (errstring == NULL) 1618 return; 1619 1620 /* Reset to default label -- after printing error and the warning */ 1621 printf("%s: %s\n", cd->sc_dev.dv_xname, errstring); 1622 memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1623 cdgetdefaultlabel(cd, lp); 1624 } 1625 1626 /* 1627 * Reading a discs total capacity is aparently a very difficult issue for the 1628 * SCSI standardisation group. Every disc type seems to have its own 1629 * (re)invented size request method and modifiers. The failsafe way of 1630 * determining the total (max) capacity i.e. not the recorded capacity but the 1631 * total maximum capacity is to request the info on the last track and 1632 * calucate the total size. 1633 * 1634 * For ROM drives, we go for the CD recorded capacity. For recordable devices 1635 * we count. 1636 */ 1637 static int 1638 read_cd_capacity(struct scsipi_periph *periph, int *blksize, u_long *size) 1639 { 1640 struct scsipi_read_cd_capacity cap_cmd; 1641 struct scsipi_read_cd_cap_data cap; 1642 struct scsipi_read_discinfo di_cmd; 1643 struct scsipi_read_discinfo_data di; 1644 struct scsipi_read_trackinfo ti_cmd; 1645 struct scsipi_read_trackinfo_data ti; 1646 uint32_t track_start, track_size; 1647 int error, flags, msb, lsb, last_track; 1648 1649 /* if the device doesn't grog capacity, return the dummies */ 1650 if (periph->periph_quirks & PQUIRK_NOCAPACITY) 1651 return 0; 1652 1653 /* first try read CD capacity for blksize and recorded size */ 1654 /* issue the cd capacity request */ 1655 flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK; 1656 memset(&cap_cmd, 0, sizeof(cap_cmd)); 1657 cap_cmd.opcode = READ_CD_CAPACITY; 1658 1659 error = scsipi_command(periph, 1660 (void *) &cap_cmd, sizeof(cap_cmd), 1661 (void *) &cap, sizeof(cap), 1662 CDRETRIES, 30000, NULL, flags); 1663 if (error) 1664 return error; 1665 1666 /* retrieve values and sanity check them */ 1667 *blksize = _4btol(cap.length); 1668 *size = _4btol(cap.addr); 1669 1670 /* blksize is 2048 for CD, but some drives give gibberish */ 1671 if ((*blksize < 512) || ((*blksize & 511) != 0)) 1672 *blksize = 2048; /* some drives lie ! */ 1673 1674 /* recordables have READ_DISCINFO implemented */ 1675 flags = XS_CTL_DATA_IN | XS_CTL_DATA_ONSTACK | XS_CTL_SILENT; 1676 memset(&di_cmd, 0, sizeof(di_cmd)); 1677 di_cmd.opcode = READ_DISCINFO; 1678 _lto2b(sizeof(di), di_cmd.data_len); 1679 1680 error = scsipi_command(periph, 1681 (void *) &di_cmd, sizeof(di_cmd), 1682 (void *) &di, sizeof(di), 1683 CDRETRIES, 30000, NULL, flags); 1684 if (error == 0) { 1685 msb = di.last_track_last_session_msb; 1686 lsb = di.last_track_last_session_lsb; 1687 last_track = (msb << 8) | lsb; 1688 1689 /* request info on last track */ 1690 memset(&ti_cmd, 0, sizeof(ti_cmd)); 1691 ti_cmd.opcode = READ_TRACKINFO; 1692 ti_cmd.addr_type = 1; /* on tracknr */ 1693 _lto4b(last_track, ti_cmd.address); /* tracknr */ 1694 _lto2b(sizeof(ti), ti_cmd.data_len); 1695 1696 error = scsipi_command(periph, 1697 (void *) &ti_cmd, sizeof(ti_cmd), 1698 (void *) &ti, sizeof(ti), 1699 CDRETRIES, 30000, NULL, flags); 1700 if (error == 0) { 1701 track_start = _4btol(ti.track_start); 1702 track_size = _4btol(ti.track_size); 1703 1704 *size = track_start + track_size; 1705 }; 1706 }; 1707 1708 /* sanity check for size */ 1709 if (*size < 100) 1710 *size = 400000; 1711 1712 return 0; 1713 } 1714 1715 /* 1716 * Find out from the device what it's capacity is 1717 */ 1718 static u_long 1719 cd_size(struct cd_softc *cd, int flags) 1720 { 1721 int blksize; 1722 u_long size; 1723 int error; 1724 1725 /* set up fake values */ 1726 blksize = 2048; 1727 size = 400000; 1728 1729 /* if this function bounces with an error return fake value */ 1730 error = read_cd_capacity(cd->sc_periph, &blksize, &size); 1731 if (error) 1732 return size; 1733 1734 if (blksize != 2048) { 1735 if (cd_setblksize(cd) == 0) 1736 blksize = 2048; 1737 } 1738 cd->params.blksize = blksize; 1739 cd->params.disksize = size-1; /* disklabel is exclusive */ 1740 cd->params.disksize512 = ((u_int64_t)cd->params.disksize * blksize) / DEV_BSIZE; 1741 1742 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, 1743 ("cd_size: %d %ld\n", blksize, size)); 1744 1745 return size; 1746 } 1747 1748 /* 1749 * Get scsi driver to send a "start playing" command 1750 */ 1751 static int 1752 cd_play(struct cd_softc *cd, int blkno, int nblks) 1753 { 1754 struct scsipi_play cmd; 1755 1756 memset(&cmd, 0, sizeof(cmd)); 1757 cmd.opcode = PLAY; 1758 _lto4b(blkno, cmd.blk_addr); 1759 _lto2b(nblks, cmd.xfer_len); 1760 1761 return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, 1762 CDRETRIES, 30000, NULL, 0)); 1763 } 1764 1765 /* 1766 * Get scsi driver to send a "start playing" command 1767 */ 1768 static int 1769 cd_play_tracks(struct cd_softc *cd, int strack, int sindex, int etrack, 1770 int eindex) 1771 { 1772 struct cd_formatted_toc toc; 1773 int error; 1774 1775 if (!etrack) 1776 return (EIO); 1777 if (strack > etrack) 1778 return (EINVAL); 1779 1780 error = cd_load_toc(cd, CD_TOC_FORM, &toc, XS_CTL_DATA_ONSTACK); 1781 if (error) 1782 return (error); 1783 1784 if (++etrack > (toc.header.ending_track+1)) 1785 etrack = toc.header.ending_track+1; 1786 1787 strack -= toc.header.starting_track; 1788 etrack -= toc.header.starting_track; 1789 if (strack < 0) 1790 return (EINVAL); 1791 1792 return (cd_play_msf(cd, toc.entries[strack].addr.msf.minute, 1793 toc.entries[strack].addr.msf.second, 1794 toc.entries[strack].addr.msf.frame, 1795 toc.entries[etrack].addr.msf.minute, 1796 toc.entries[etrack].addr.msf.second, 1797 toc.entries[etrack].addr.msf.frame)); 1798 } 1799 1800 /* 1801 * Get scsi driver to send a "play msf" command 1802 */ 1803 static int 1804 cd_play_msf(struct cd_softc *cd, int startm, int starts, int startf, int endm, 1805 int ends, int endf) 1806 { 1807 struct scsipi_play_msf cmd; 1808 1809 memset(&cmd, 0, sizeof(cmd)); 1810 cmd.opcode = PLAY_MSF; 1811 cmd.start_m = startm; 1812 cmd.start_s = starts; 1813 cmd.start_f = startf; 1814 cmd.end_m = endm; 1815 cmd.end_s = ends; 1816 cmd.end_f = endf; 1817 1818 return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, 1819 CDRETRIES, 30000, NULL, 0)); 1820 } 1821 1822 /* 1823 * Get scsi driver to send a "start up" command 1824 */ 1825 static int 1826 cd_pause(struct cd_softc *cd, int go) 1827 { 1828 struct scsipi_pause cmd; 1829 1830 memset(&cmd, 0, sizeof(cmd)); 1831 cmd.opcode = PAUSE; 1832 cmd.resume = go & 0xff; 1833 1834 return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, 1835 CDRETRIES, 30000, NULL, 0)); 1836 } 1837 1838 /* 1839 * Get scsi driver to send a "RESET" command 1840 */ 1841 static int 1842 cd_reset(struct cd_softc *cd) 1843 { 1844 1845 return (scsipi_command(cd->sc_periph, 0, 0, 0, 0, 1846 CDRETRIES, 30000, NULL, XS_CTL_RESET)); 1847 } 1848 1849 /* 1850 * Read subchannel 1851 */ 1852 static int 1853 cd_read_subchannel(struct cd_softc *cd, int mode, int format, int track, 1854 struct cd_sub_channel_info *data, int len, int flags) 1855 { 1856 struct scsipi_read_subchannel cmd; 1857 1858 memset(&cmd, 0, sizeof(cmd)); 1859 cmd.opcode = READ_SUBCHANNEL; 1860 if (mode == CD_MSF_FORMAT) 1861 cmd.byte2 |= CD_MSF; 1862 cmd.byte3 = SRS_SUBQ; 1863 cmd.subchan_format = format; 1864 cmd.track = track; 1865 _lto2b(len, cmd.data_len); 1866 1867 return (scsipi_command(cd->sc_periph, 1868 (void *)&cmd, sizeof(struct scsipi_read_subchannel), 1869 (void *)data, len, 1870 CDRETRIES, 30000, NULL, flags | XS_CTL_DATA_IN | XS_CTL_SILENT)); 1871 } 1872 1873 /* 1874 * Read table of contents 1875 */ 1876 static int 1877 cd_read_toc(struct cd_softc *cd, int respf, int mode, int start, void *data, int len, 1878 int flags, int control) 1879 { 1880 struct scsipi_read_toc cmd; 1881 int ntoc; 1882 1883 memset(&cmd, 0, sizeof(cmd)); 1884 #if 0 1885 if (len != sizeof(struct ioc_toc_header)) 1886 ntoc = ((len) - sizeof(struct ioc_toc_header)) / 1887 sizeof(struct cd_toc_entry); 1888 else 1889 #endif 1890 ntoc = len; 1891 cmd.opcode = READ_TOC; 1892 if (mode == CD_MSF_FORMAT) 1893 cmd.addr_mode |= CD_MSF; 1894 cmd.resp_format = respf; 1895 cmd.from_track = start; 1896 _lto2b(ntoc, cmd.data_len); 1897 cmd.control = control; 1898 1899 return (scsipi_command(cd->sc_periph, 1900 (void *)&cmd, sizeof(cmd), (void *)data, len, CDRETRIES, 1901 30000, NULL, flags | XS_CTL_DATA_IN)); 1902 } 1903 1904 static int 1905 cd_load_toc(struct cd_softc *cd, int respf, struct cd_formatted_toc *toc, int flags) 1906 { 1907 int ntracks, len, error; 1908 1909 if ((error = cd_read_toc(cd, respf, 0, 0, toc, sizeof(toc->header), 1910 flags, 0)) != 0) 1911 return (error); 1912 1913 ntracks = toc->header.ending_track - toc->header.starting_track + 1; 1914 len = (ntracks + 1) * sizeof(struct cd_toc_entry) + 1915 sizeof(toc->header); 1916 if ((error = cd_read_toc(cd, respf, CD_MSF_FORMAT, 0, toc, len, 1917 flags, 0)) != 0) 1918 return (error); 1919 return (0); 1920 } 1921 1922 /* 1923 * Get the scsi driver to send a full inquiry to the device and use the 1924 * results to fill out the disk parameter structure. 1925 */ 1926 static int 1927 cd_get_parms(struct cd_softc *cd, int flags) 1928 { 1929 1930 /* 1931 * give a number of sectors so that sec * trks * cyls 1932 * is <= disk_size 1933 */ 1934 if (cd_size(cd, flags) == 0) 1935 return (ENXIO); 1936 return (0); 1937 } 1938 1939 static int 1940 cdsize(dev_t dev) 1941 { 1942 1943 /* CD-ROMs are read-only. */ 1944 return (-1); 1945 } 1946 1947 static int 1948 cddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1949 { 1950 1951 /* Not implemented. */ 1952 return (ENXIO); 1953 } 1954 1955 #define dvd_copy_key(dst, src) memcpy((dst), (src), sizeof(dvd_key)) 1956 #define dvd_copy_challenge(dst, src) memcpy((dst), (src), sizeof(dvd_challenge)) 1957 1958 static int 1959 dvd_auth(struct cd_softc *cd, dvd_authinfo *a) 1960 { 1961 struct scsipi_generic cmd; 1962 u_int8_t bf[20]; 1963 int error; 1964 1965 memset(cmd.bytes, 0, 15); 1966 memset(bf, 0, sizeof(bf)); 1967 1968 switch (a->type) { 1969 case DVD_LU_SEND_AGID: 1970 cmd.opcode = GPCMD_REPORT_KEY; 1971 cmd.bytes[8] = 8; 1972 cmd.bytes[9] = 0 | (0 << 6); 1973 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, 1974 CDRETRIES, 30000, NULL, 1975 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1976 if (error) 1977 return (error); 1978 a->lsa.agid = bf[7] >> 6; 1979 return (0); 1980 1981 case DVD_LU_SEND_CHALLENGE: 1982 cmd.opcode = GPCMD_REPORT_KEY; 1983 cmd.bytes[8] = 16; 1984 cmd.bytes[9] = 1 | (a->lsc.agid << 6); 1985 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, 1986 CDRETRIES, 30000, NULL, 1987 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1988 if (error) 1989 return (error); 1990 dvd_copy_challenge(a->lsc.chal, &bf[4]); 1991 return (0); 1992 1993 case DVD_LU_SEND_KEY1: 1994 cmd.opcode = GPCMD_REPORT_KEY; 1995 cmd.bytes[8] = 12; 1996 cmd.bytes[9] = 2 | (a->lsk.agid << 6); 1997 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, 1998 CDRETRIES, 30000, NULL, 1999 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2000 if (error) 2001 return (error); 2002 dvd_copy_key(a->lsk.key, &bf[4]); 2003 return (0); 2004 2005 case DVD_LU_SEND_TITLE_KEY: 2006 cmd.opcode = GPCMD_REPORT_KEY; 2007 _lto4b(a->lstk.lba, &cmd.bytes[1]); 2008 cmd.bytes[8] = 12; 2009 cmd.bytes[9] = 4 | (a->lstk.agid << 6); 2010 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, 2011 CDRETRIES, 30000, NULL, 2012 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2013 if (error) 2014 return (error); 2015 a->lstk.cpm = (bf[4] >> 7) & 1; 2016 a->lstk.cp_sec = (bf[4] >> 6) & 1; 2017 a->lstk.cgms = (bf[4] >> 4) & 3; 2018 dvd_copy_key(a->lstk.title_key, &bf[5]); 2019 return (0); 2020 2021 case DVD_LU_SEND_ASF: 2022 cmd.opcode = GPCMD_REPORT_KEY; 2023 cmd.bytes[8] = 8; 2024 cmd.bytes[9] = 5 | (a->lsasf.agid << 6); 2025 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, 2026 CDRETRIES, 30000, NULL, 2027 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2028 if (error) 2029 return (error); 2030 a->lsasf.asf = bf[7] & 1; 2031 return (0); 2032 2033 case DVD_HOST_SEND_CHALLENGE: 2034 cmd.opcode = GPCMD_SEND_KEY; 2035 cmd.bytes[8] = 16; 2036 cmd.bytes[9] = 1 | (a->hsc.agid << 6); 2037 bf[1] = 14; 2038 dvd_copy_challenge(&bf[4], a->hsc.chal); 2039 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, 2040 CDRETRIES, 30000, NULL, 2041 XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); 2042 if (error) 2043 return (error); 2044 a->type = DVD_LU_SEND_KEY1; 2045 return (0); 2046 2047 case DVD_HOST_SEND_KEY2: 2048 cmd.opcode = GPCMD_SEND_KEY; 2049 cmd.bytes[8] = 12; 2050 cmd.bytes[9] = 3 | (a->hsk.agid << 6); 2051 bf[1] = 10; 2052 dvd_copy_key(&bf[4], a->hsk.key); 2053 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 12, 2054 CDRETRIES, 30000, NULL, 2055 XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); 2056 if (error) { 2057 a->type = DVD_AUTH_FAILURE; 2058 return (error); 2059 } 2060 a->type = DVD_AUTH_ESTABLISHED; 2061 return (0); 2062 2063 case DVD_INVALIDATE_AGID: 2064 cmd.opcode = GPCMD_REPORT_KEY; 2065 cmd.bytes[9] = 0x3f | (a->lsa.agid << 6); 2066 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 16, 2067 CDRETRIES, 30000, NULL, 0); 2068 if (error) 2069 return (error); 2070 return (0); 2071 2072 case DVD_LU_SEND_RPC_STATE: 2073 cmd.opcode = GPCMD_REPORT_KEY; 2074 cmd.bytes[8] = 8; 2075 cmd.bytes[9] = 8 | (0 << 6); 2076 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, 2077 CDRETRIES, 30000, NULL, 2078 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2079 if (error) 2080 return (error); 2081 a->lrpcs.type = (bf[4] >> 6) & 3; 2082 a->lrpcs.vra = (bf[4] >> 3) & 7; 2083 a->lrpcs.ucca = (bf[4]) & 7; 2084 a->lrpcs.region_mask = bf[5]; 2085 a->lrpcs.rpc_scheme = bf[6]; 2086 return (0); 2087 2088 case DVD_HOST_SEND_RPC_STATE: 2089 cmd.opcode = GPCMD_SEND_KEY; 2090 cmd.bytes[8] = 8; 2091 cmd.bytes[9] = 6 | (0 << 6); 2092 bf[1] = 6; 2093 bf[4] = a->hrpcs.pdrc; 2094 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 8, 2095 CDRETRIES, 30000, NULL, 2096 XS_CTL_DATA_OUT|XS_CTL_DATA_ONSTACK); 2097 if (error) 2098 return (error); 2099 return (0); 2100 2101 default: 2102 return (ENOTTY); 2103 } 2104 } 2105 2106 static int 2107 dvd_read_physical(struct cd_softc *cd, dvd_struct *s) 2108 { 2109 struct scsipi_generic cmd; 2110 u_int8_t bf[4 + 4 * 20], *bufp; 2111 int error; 2112 struct dvd_layer *layer; 2113 int i; 2114 2115 memset(cmd.bytes, 0, 15); 2116 memset(bf, 0, sizeof(bf)); 2117 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2118 cmd.bytes[6] = s->type; 2119 _lto2b(sizeof(bf), &cmd.bytes[7]); 2120 2121 cmd.bytes[5] = s->physical.layer_num; 2122 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), 2123 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2124 if (error) 2125 return (error); 2126 for (i = 0, bufp = &bf[4], layer = &s->physical.layer[0]; i < 4; 2127 i++, bufp += 20, layer++) { 2128 memset(layer, 0, sizeof(*layer)); 2129 layer->book_version = bufp[0] & 0xf; 2130 layer->book_type = bufp[0] >> 4; 2131 layer->min_rate = bufp[1] & 0xf; 2132 layer->disc_size = bufp[1] >> 4; 2133 layer->layer_type = bufp[2] & 0xf; 2134 layer->track_path = (bufp[2] >> 4) & 1; 2135 layer->nlayers = (bufp[2] >> 5) & 3; 2136 layer->track_density = bufp[3] & 0xf; 2137 layer->linear_density = bufp[3] >> 4; 2138 layer->start_sector = _4btol(&bufp[4]); 2139 layer->end_sector = _4btol(&bufp[8]); 2140 layer->end_sector_l0 = _4btol(&bufp[12]); 2141 layer->bca = bufp[16] >> 7; 2142 } 2143 return (0); 2144 } 2145 2146 static int 2147 dvd_read_copyright(struct cd_softc *cd, dvd_struct *s) 2148 { 2149 struct scsipi_generic cmd; 2150 u_int8_t bf[8]; 2151 int error; 2152 2153 memset(cmd.bytes, 0, 15); 2154 memset(bf, 0, sizeof(bf)); 2155 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2156 cmd.bytes[6] = s->type; 2157 _lto2b(sizeof(bf), &cmd.bytes[7]); 2158 2159 cmd.bytes[5] = s->copyright.layer_num; 2160 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), 2161 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2162 if (error) 2163 return (error); 2164 s->copyright.cpst = bf[4]; 2165 s->copyright.rmi = bf[5]; 2166 return (0); 2167 } 2168 2169 static int 2170 dvd_read_disckey(struct cd_softc *cd, dvd_struct *s) 2171 { 2172 struct scsipi_generic cmd; 2173 u_int8_t *bf; 2174 int error; 2175 2176 bf = malloc(4 + 2048, M_TEMP, M_WAITOK|M_ZERO); 2177 if (bf == NULL) 2178 return EIO; 2179 memset(cmd.bytes, 0, 15); 2180 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2181 cmd.bytes[6] = s->type; 2182 _lto2b(4 + 2048, &cmd.bytes[7]); 2183 2184 cmd.bytes[9] = s->disckey.agid << 6; 2185 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 4 + 2048, 2186 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2187 if (error == 0) 2188 memcpy(s->disckey.value, &bf[4], 2048); 2189 free(bf, M_TEMP); 2190 return error; 2191 } 2192 2193 static int 2194 dvd_read_bca(struct cd_softc *cd, dvd_struct *s) 2195 { 2196 struct scsipi_generic cmd; 2197 u_int8_t bf[4 + 188]; 2198 int error; 2199 2200 memset(cmd.bytes, 0, 15); 2201 memset(bf, 0, sizeof(bf)); 2202 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2203 cmd.bytes[6] = s->type; 2204 _lto2b(sizeof(bf), &cmd.bytes[7]); 2205 2206 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, sizeof(bf), 2207 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2208 if (error) 2209 return (error); 2210 s->bca.len = _2btol(&bf[0]); 2211 if (s->bca.len < 12 || s->bca.len > 188) 2212 return (EIO); 2213 memcpy(s->bca.value, &bf[4], s->bca.len); 2214 return (0); 2215 } 2216 2217 static int 2218 dvd_read_manufact(struct cd_softc *cd, dvd_struct *s) 2219 { 2220 struct scsipi_generic cmd; 2221 u_int8_t *bf; 2222 int error; 2223 2224 bf = malloc(4 + 2048, M_TEMP, M_WAITOK|M_ZERO); 2225 if (bf == NULL) 2226 return (EIO); 2227 memset(cmd.bytes, 0, 15); 2228 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2229 cmd.bytes[6] = s->type; 2230 _lto2b(4 + 2048, &cmd.bytes[7]); 2231 2232 error = scsipi_command(cd->sc_periph, &cmd, 12, bf, 4 + 2048, 2233 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2234 if (error == 0) { 2235 s->manufact.len = _2btol(&bf[0]); 2236 if (s->manufact.len >= 0 && s->manufact.len <= 2048) 2237 memcpy(s->manufact.value, &bf[4], s->manufact.len); 2238 else 2239 error = EIO; 2240 } 2241 free(bf, M_TEMP); 2242 return error; 2243 } 2244 2245 static int 2246 dvd_read_struct(struct cd_softc *cd, dvd_struct *s) 2247 { 2248 2249 switch (s->type) { 2250 case DVD_STRUCT_PHYSICAL: 2251 return (dvd_read_physical(cd, s)); 2252 case DVD_STRUCT_COPYRIGHT: 2253 return (dvd_read_copyright(cd, s)); 2254 case DVD_STRUCT_DISCKEY: 2255 return (dvd_read_disckey(cd, s)); 2256 case DVD_STRUCT_BCA: 2257 return (dvd_read_bca(cd, s)); 2258 case DVD_STRUCT_MANUFACT: 2259 return (dvd_read_manufact(cd, s)); 2260 default: 2261 return (EINVAL); 2262 } 2263 } 2264 2265 static int 2266 cd_mode_sense(struct cd_softc *cd, u_int8_t byte2, void *sense, size_t size, 2267 int page, int flags, int *big) 2268 { 2269 2270 if (cd->sc_periph->periph_quirks & PQUIRK_ONLYBIG) { 2271 *big = 1; 2272 return scsipi_mode_sense_big(cd->sc_periph, byte2, page, sense, 2273 size + sizeof(struct scsi_mode_parameter_header_10), 2274 flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); 2275 } else { 2276 *big = 0; 2277 return scsipi_mode_sense(cd->sc_periph, byte2, page, sense, 2278 size + sizeof(struct scsi_mode_parameter_header_6), 2279 flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); 2280 } 2281 } 2282 2283 static int 2284 cd_mode_select(struct cd_softc *cd, u_int8_t byte2, void *sense, size_t size, 2285 int flags, int big) 2286 { 2287 2288 if (big) { 2289 struct scsi_mode_parameter_header_10 *header = sense; 2290 2291 _lto2b(0, header->data_length); 2292 return scsipi_mode_select_big(cd->sc_periph, byte2, sense, 2293 size + sizeof(struct scsi_mode_parameter_header_10), 2294 flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); 2295 } else { 2296 struct scsi_mode_parameter_header_6 *header = sense; 2297 2298 header->data_length = 0; 2299 return scsipi_mode_select(cd->sc_periph, byte2, sense, 2300 size + sizeof(struct scsi_mode_parameter_header_6), 2301 flags | XS_CTL_DATA_ONSTACK, CDRETRIES, 20000); 2302 } 2303 } 2304 2305 static int 2306 cd_set_pa_immed(struct cd_softc *cd, int flags) 2307 { 2308 struct { 2309 union { 2310 struct scsi_mode_parameter_header_6 small; 2311 struct scsi_mode_parameter_header_10 big; 2312 } header; 2313 struct cd_audio_page page; 2314 } data; 2315 int error; 2316 uint8_t oflags; 2317 int big, byte2; 2318 struct cd_audio_page *page; 2319 2320 byte2 = SMS_DBD; 2321 try_again: 2322 if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), 2323 AUDIO_PAGE, flags, &big)) != 0) { 2324 if (byte2 == SMS_DBD) { 2325 /* Device may not understand DBD; retry without */ 2326 byte2 = 0; 2327 goto try_again; 2328 } 2329 return (error); 2330 } 2331 2332 if (big) 2333 page = (void *)((u_long)&data.header.big + 2334 sizeof data.header.big + 2335 _2btol(data.header.big.blk_desc_len)); 2336 else 2337 page = (void *)((u_long)&data.header.small + 2338 sizeof data.header.small + 2339 data.header.small.blk_desc_len); 2340 2341 oflags = page->flags; 2342 page->flags &= ~CD_PA_SOTC; 2343 page->flags |= CD_PA_IMMED; 2344 if (oflags == page->flags) 2345 return (0); 2346 2347 return (cd_mode_select(cd, SMS_PF, &data, 2348 sizeof(struct scsi_mode_page_header) + page->pg_length, 2349 flags, big)); 2350 } 2351 2352 static int 2353 cd_setchan(struct cd_softc *cd, int p0, int p1, int p2, int p3, int flags) 2354 { 2355 struct { 2356 union { 2357 struct scsi_mode_parameter_header_6 small; 2358 struct scsi_mode_parameter_header_10 big; 2359 } header; 2360 struct cd_audio_page page; 2361 } data; 2362 int error; 2363 int big, byte2; 2364 struct cd_audio_page *page; 2365 2366 byte2 = SMS_DBD; 2367 try_again: 2368 if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), 2369 AUDIO_PAGE, flags, &big)) != 0) { 2370 if (byte2 == SMS_DBD) { 2371 /* Device may not understand DBD; retry without */ 2372 byte2 = 0; 2373 goto try_again; 2374 } 2375 return (error); 2376 } 2377 2378 if (big) 2379 page = (void *)((u_long)&data.header.big + 2380 sizeof data.header.big + 2381 _2btol(data.header.big.blk_desc_len)); 2382 else 2383 page = (void *)((u_long)&data.header.small + 2384 sizeof data.header.small + 2385 data.header.small.blk_desc_len); 2386 2387 page->port[0].channels = p0; 2388 page->port[1].channels = p1; 2389 page->port[2].channels = p2; 2390 page->port[3].channels = p3; 2391 2392 return (cd_mode_select(cd, SMS_PF, &data, 2393 sizeof(struct scsi_mode_page_header) + page->pg_length, 2394 flags, big)); 2395 } 2396 2397 static int 2398 cd_getvol(struct cd_softc *cd, struct ioc_vol *arg, int flags) 2399 { 2400 struct { 2401 union { 2402 struct scsi_mode_parameter_header_6 small; 2403 struct scsi_mode_parameter_header_10 big; 2404 } header; 2405 struct cd_audio_page page; 2406 } data; 2407 int error; 2408 int big, byte2; 2409 struct cd_audio_page *page; 2410 2411 byte2 = SMS_DBD; 2412 try_again: 2413 if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), 2414 AUDIO_PAGE, flags, &big)) != 0) { 2415 if (byte2 == SMS_DBD) { 2416 /* Device may not understand DBD; retry without */ 2417 byte2 = 0; 2418 goto try_again; 2419 } 2420 return (error); 2421 } 2422 2423 if (big) 2424 page = (void *)((u_long)&data.header.big + 2425 sizeof data.header.big + 2426 _2btol(data.header.big.blk_desc_len)); 2427 else 2428 page = (void *)((u_long)&data.header.small + 2429 sizeof data.header.small + 2430 data.header.small.blk_desc_len); 2431 2432 arg->vol[0] = page->port[0].volume; 2433 arg->vol[1] = page->port[1].volume; 2434 arg->vol[2] = page->port[2].volume; 2435 arg->vol[3] = page->port[3].volume; 2436 2437 return (0); 2438 } 2439 2440 static int 2441 cd_setvol(struct cd_softc *cd, const struct ioc_vol *arg, int flags) 2442 { 2443 struct { 2444 union { 2445 struct scsi_mode_parameter_header_6 small; 2446 struct scsi_mode_parameter_header_10 big; 2447 } header; 2448 struct cd_audio_page page; 2449 } data, mask; 2450 int error; 2451 int big, byte2; 2452 struct cd_audio_page *page, *page2; 2453 2454 byte2 = SMS_DBD; 2455 try_again: 2456 if ((error = cd_mode_sense(cd, byte2, &data, sizeof(data.page), 2457 AUDIO_PAGE, flags, &big)) != 0) { 2458 if (byte2 == SMS_DBD) { 2459 /* Device may not understand DBD; retry without */ 2460 byte2 = 0; 2461 goto try_again; 2462 } 2463 return (error); 2464 } 2465 if ((error = cd_mode_sense(cd, byte2, &mask, sizeof(mask.page), 2466 AUDIO_PAGE|SMS_PCTRL_CHANGEABLE, flags, &big)) != 0) 2467 return (error); 2468 2469 if (big) { 2470 page = (void *)((u_long)&data.header.big + 2471 sizeof data.header.big + 2472 _2btol(data.header.big.blk_desc_len)); 2473 page2 = (void *)((u_long)&mask.header.big + 2474 sizeof mask.header.big + 2475 _2btol(mask.header.big.blk_desc_len)); 2476 } else { 2477 page = (void *)((u_long)&data.header.small + 2478 sizeof data.header.small + 2479 data.header.small.blk_desc_len); 2480 page2 = (void *)((u_long)&mask.header.small + 2481 sizeof mask.header.small + 2482 mask.header.small.blk_desc_len); 2483 } 2484 2485 page->port[0].volume = arg->vol[0] & page2->port[0].volume; 2486 page->port[1].volume = arg->vol[1] & page2->port[1].volume; 2487 page->port[2].volume = arg->vol[2] & page2->port[2].volume; 2488 page->port[3].volume = arg->vol[3] & page2->port[3].volume; 2489 2490 page->port[0].channels = CHANNEL_0; 2491 page->port[1].channels = CHANNEL_1; 2492 2493 return (cd_mode_select(cd, SMS_PF, &data, 2494 sizeof(struct scsi_mode_page_header) + page->pg_length, 2495 flags, big)); 2496 } 2497 2498 static int 2499 cd_load_unload(struct cd_softc *cd, struct ioc_load_unload *args) 2500 { 2501 struct scsipi_load_unload cmd; 2502 2503 memset(&cmd, 0, sizeof(cmd)); 2504 cmd.opcode = LOAD_UNLOAD; 2505 cmd.options = args->options; /* ioctl uses MMC values */ 2506 cmd.slot = args->slot; 2507 2508 return (scsipi_command(cd->sc_periph, (void *)&cmd, sizeof(cmd), 0, 0, 2509 CDRETRIES, 200000, NULL, 0)); 2510 } 2511 2512 static int 2513 cd_setblksize(struct cd_softc *cd) 2514 { 2515 struct { 2516 union { 2517 struct scsi_mode_parameter_header_6 small; 2518 struct scsi_mode_parameter_header_10 big; 2519 } header; 2520 struct scsi_general_block_descriptor blk_desc; 2521 } data; 2522 int error; 2523 int big, bsize; 2524 struct scsi_general_block_descriptor *bdesc; 2525 2526 if ((error = cd_mode_sense(cd, 0, &data, sizeof(data.blk_desc), 0, 0, 2527 &big)) != 0) 2528 return (error); 2529 2530 if (big) { 2531 bdesc = (void *)(&data.header.big + 1); 2532 bsize = _2btol(data.header.big.blk_desc_len); 2533 } else { 2534 bdesc = (void *)(&data.header.small + 1); 2535 bsize = data.header.small.blk_desc_len; 2536 } 2537 2538 if (bsize == 0) { 2539 printf("cd_setblksize: trying to change bsize, but no blk_desc\n"); 2540 return (EINVAL); 2541 } 2542 if (_3btol(bdesc->blklen) == 2048) { 2543 printf("cd_setblksize: trying to change bsize, but blk_desc is correct\n"); 2544 return (EINVAL); 2545 } 2546 2547 _lto3b(2048, bdesc->blklen); 2548 2549 return (cd_mode_select(cd, SMS_PF, &data, sizeof(data.blk_desc), 0, 2550 big)); 2551 } 2552 2553