cd.c revision 1.143
1/* $OpenBSD: cd.c,v 1.143 2008/07/26 04:39:51 krw Exp $ */ 2/* $NetBSD: cd.c,v 1.100 1997/04/02 02:29:30 mycroft Exp $ */ 3 4/* 5 * Copyright (c) 1994, 1995, 1997 Charles M. Hannum. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Charles M. Hannum. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* 34 * Originally written by Julian Elischer (julian@tfs.com) 35 * for TRW Financial Systems for use under the MACH(2.5) operating system. 36 * 37 * TRW Financial Systems, in accordance with their agreement with Carnegie 38 * Mellon University, makes this software available to CMU to distribute 39 * or use in any manner that they see fit as long as this message is kept with 40 * the software. For this reason TFS also grants any other persons or 41 * organisations permission to use or modify this software. 42 * 43 * TFS supplies this software to be publicly redistributed 44 * on the understanding that TFS is not responsible for the correct 45 * functioning of this software in any circumstances. 46 * 47 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 48 */ 49 50#include <sys/types.h> 51#include <sys/param.h> 52#include <sys/systm.h> 53#include <sys/timeout.h> 54#include <sys/file.h> 55#include <sys/stat.h> 56#include <sys/ioctl.h> 57#include <sys/mtio.h> 58#include <sys/buf.h> 59#include <sys/uio.h> 60#include <sys/malloc.h> 61#include <sys/errno.h> 62#include <sys/device.h> 63#include <sys/disklabel.h> 64#include <sys/disk.h> 65#include <sys/cdio.h> 66#include <sys/proc.h> 67#include <sys/conf.h> 68#include <sys/scsiio.h> 69#include <sys/vnode.h> 70 71#include <scsi/scsi_all.h> 72#include <scsi/cd.h> 73#include <scsi/scsi_disk.h> /* rw_big and start_stop come from there */ 74#include <scsi/scsiconf.h> 75 76 77#include <ufs/ffs/fs.h> /* for BBSIZE and SBSIZE */ 78 79#define CDOUTSTANDING 4 80 81#define MAXTRACK 99 82#define CD_FRAMES 75 83#define CD_SECS 60 84 85struct cd_toc { 86 struct ioc_toc_header header; 87 struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */ 88 /* leadout */ 89}; 90 91int cdmatch(struct device *, void *, void *); 92void cdattach(struct device *, struct device *, void *); 93int cdactivate(struct device *, enum devact); 94int cddetach(struct device *, int); 95 96void cdstart(void *); 97void cdrestart(void *); 98void cdminphys(struct buf *); 99void cdgetdisklabel(dev_t, struct cd_softc *, struct disklabel *, int); 100void cddone(struct scsi_xfer *); 101void cd_kill_buffers(struct cd_softc *); 102int cd_setchan(struct cd_softc *, int, int, int, int, int); 103int cd_getvol(struct cd_softc *cd, struct ioc_vol *, int); 104int cd_setvol(struct cd_softc *, const struct ioc_vol *, int); 105int cd_load_unload(struct cd_softc *, int, int); 106int cd_set_pa_immed(struct cd_softc *, int); 107int cd_play(struct cd_softc *, int, int); 108int cd_play_tracks(struct cd_softc *, int, int, int, int); 109int cd_play_msf(struct cd_softc *, int, int, int, int, int, int); 110int cd_pause(struct cd_softc *, int); 111int cd_reset(struct cd_softc *); 112int cd_read_subchannel(struct cd_softc *, int, int, int, 113 struct cd_sub_channel_info *, int ); 114int cd_read_toc(struct cd_softc *, int, int, void *, int, int); 115int cd_get_parms(struct cd_softc *, int); 116int cd_load_toc(struct cd_softc *, struct cd_toc *, int); 117int cd_interpret_sense(struct scsi_xfer *); 118 119int dvd_auth(struct cd_softc *, union dvd_authinfo *); 120int dvd_read_physical(struct cd_softc *, union dvd_struct *); 121int dvd_read_copyright(struct cd_softc *, union dvd_struct *); 122int dvd_read_disckey(struct cd_softc *, union dvd_struct *); 123int dvd_read_bca(struct cd_softc *, union dvd_struct *); 124int dvd_read_manufact(struct cd_softc *, union dvd_struct *); 125int dvd_read_struct(struct cd_softc *, union dvd_struct *); 126 127void cd_powerhook(int why, void *arg); 128 129struct cfattach cd_ca = { 130 sizeof(struct cd_softc), cdmatch, cdattach, 131 cddetach, cdactivate 132}; 133 134struct cfdriver cd_cd = { 135 NULL, "cd", DV_DISK 136}; 137 138struct dkdriver cddkdriver = { cdstrategy }; 139 140struct scsi_device cd_switch = { 141 cd_interpret_sense, 142 cdstart, /* we have a queue, which is started by this */ 143 NULL, /* we do not have an async handler */ 144 cddone, /* deal with stats at interrupt time */ 145}; 146 147const struct scsi_inquiry_pattern cd_patterns[] = { 148 {T_CDROM, T_REMOV, 149 "", "", ""}, 150 {T_WORM, T_REMOV, 151 "", "", ""}, 152 {T_DIRECT, T_REMOV, 153 "NEC CD-ROM DRIVE:260", "", ""}, 154#if 0 155 {T_CDROM, T_REMOV, /* more luns */ 156 "PIONEER ", "CD-ROM DRM-600 ", ""}, 157#endif 158}; 159 160#define cdlock(softc) disk_lock(&(softc)->sc_dk) 161#define cdunlock(softc) disk_unlock(&(softc)->sc_dk) 162#define cdlookup(unit) (struct cd_softc *)device_lookup(&cd_cd, (unit)) 163 164int 165cdmatch(struct device *parent, void *match, void *aux) 166{ 167 struct scsi_attach_args *sa = aux; 168 int priority; 169 170 scsi_inqmatch(sa->sa_inqbuf, cd_patterns, 171 sizeof(cd_patterns)/sizeof(cd_patterns[0]), sizeof(cd_patterns[0]), 172 &priority); 173 return (priority); 174} 175 176/* 177 * The routine called by the low level scsi routine when it discovers 178 * A device suitable for this driver 179 */ 180void 181cdattach(struct device *parent, struct device *self, void *aux) 182{ 183 struct scsi_attach_args *sa = aux; 184 struct scsi_link *sc_link = sa->sa_sc_link; 185 struct cd_softc *cd = (struct cd_softc *)self; 186 187 SC_DEBUG(sc_link, SDEV_DB2, ("cdattach:\n")); 188 189 /* 190 * Store information needed to contact our base driver 191 */ 192 cd->sc_link = sc_link; 193 sc_link->device = &cd_switch; 194 sc_link->device_softc = cd; 195 if (sc_link->openings > CDOUTSTANDING) 196 sc_link->openings = CDOUTSTANDING; 197 198 /* 199 * Initialize and attach the disk structure. 200 */ 201 cd->sc_dk.dk_driver = &cddkdriver; 202 cd->sc_dk.dk_name = cd->sc_dev.dv_xname; 203 disk_attach(&cd->sc_dk); 204 205 /* 206 * Note if this device is ancient. This is used in cdminphys(). 207 */ 208 if (!(sc_link->flags & SDEV_ATAPI) && 209 SCSISPC(sa->sa_inqbuf->version) == 0) 210 cd->flags |= CDF_ANCIENT; 211 212 printf("\n"); 213 214 timeout_set(&cd->sc_timeout, cdrestart, cd); 215 216 if ((cd->sc_cdpwrhook = powerhook_establish(cd_powerhook, cd)) == NULL) 217 printf("%s: WARNING: unable to establish power hook\n", 218 cd->sc_dev.dv_xname); 219} 220 221 222int 223cdactivate(struct device *self, enum devact act) 224{ 225 int rv = 0; 226 227 switch (act) { 228 case DVACT_ACTIVATE: 229 break; 230 231 case DVACT_DEACTIVATE: 232 /* 233 * Nothing to do; we key off the device's DVF_ACTIVATE. 234 */ 235 break; 236 } 237 return (rv); 238} 239 240 241int 242cddetach(struct device *self, int flags) 243{ 244 struct cd_softc *cd = (struct cd_softc *)self; 245 int bmaj, cmaj, mn; 246 247 cd_kill_buffers(cd); 248 249 /* Locate the lowest minor number to be detached. */ 250 mn = DISKMINOR(self->dv_unit, 0); 251 252 for (bmaj = 0; bmaj < nblkdev; bmaj++) 253 if (bdevsw[bmaj].d_open == cdopen) 254 vdevgone(bmaj, mn, mn + MAXPARTITIONS - 1, VBLK); 255 for (cmaj = 0; cmaj < nchrdev; cmaj++) 256 if (cdevsw[cmaj].d_open == cdopen) 257 vdevgone(cmaj, mn, mn + MAXPARTITIONS - 1, VCHR); 258 259 /* Get rid of the power hook. */ 260 if (cd->sc_cdpwrhook != NULL) 261 powerhook_disestablish(cd->sc_cdpwrhook); 262 263 /* Detach disk. */ 264 disk_detach(&cd->sc_dk); 265 266 return (0); 267} 268 269/* 270 * Open the device. Make sure the partition info is as up-to-date as can be. 271 */ 272int 273cdopen(dev_t dev, int flag, int fmt, struct proc *p) 274{ 275 struct scsi_link *sc_link; 276 struct cd_softc *cd; 277 int error = 0, part, rawopen, unit; 278 279 unit = DISKUNIT(dev); 280 part = DISKPART(dev); 281 282 rawopen = (part == RAW_PART) && (fmt == S_IFCHR); 283 284 cd = cdlookup(unit); 285 if (cd == NULL) 286 return (ENXIO); 287 288 sc_link = cd->sc_link; 289 SC_DEBUG(sc_link, SDEV_DB1, 290 ("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit, 291 cd_cd.cd_ndevs, part)); 292 293 if ((error = cdlock(cd)) != 0) { 294 device_unref(&cd->sc_dev); 295 return (error); 296 } 297 298 if (cd->sc_dk.dk_openmask != 0) { 299 /* 300 * If any partition is open, but the disk has been invalidated, 301 * disallow further opens. 302 */ 303 if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 304 if (rawopen) 305 goto out; 306 error = EIO; 307 goto bad; 308 } 309 } else { 310 /* 311 * Check that it is still responding and ok. Drive can be in 312 * progress of loading media so use increased retries number 313 * and don't ignore NOT_READY. 314 */ 315 316 /* Use cd_interpret_sense() now. */ 317 sc_link->flags |= SDEV_OPEN; 318 319 error = scsi_test_unit_ready(sc_link, TEST_READY_RETRIES, 320 (rawopen ? SCSI_SILENT : 0) | SCSI_IGNORE_ILLEGAL_REQUEST | 321 SCSI_IGNORE_MEDIA_CHANGE); 322 323 /* Start the cd spinning if necessary. */ 324 if (error == EIO) 325 error = scsi_start(sc_link, SSS_START, 326 SCSI_IGNORE_ILLEGAL_REQUEST | 327 SCSI_IGNORE_MEDIA_CHANGE | SCSI_SILENT); 328 329 if (error) { 330 if (rawopen) { 331 error = 0; 332 goto out; 333 } else 334 goto bad; 335 } 336 337 /* Lock the cd in. */ 338 error = scsi_prevent(sc_link, PR_PREVENT, 339 SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE); 340 if (error) 341 goto bad; 342 343 /* Load the physical device parameters. */ 344 sc_link->flags |= SDEV_MEDIA_LOADED; 345 if (cd_get_parms(cd, (rawopen ? SCSI_SILENT : 0) | 346 SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE)) { 347 sc_link->flags &= ~SDEV_MEDIA_LOADED; 348 error = ENXIO; 349 goto bad; 350 } 351 SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded\n")); 352 353 /* Fabricate a disk label. */ 354 cdgetdisklabel(dev, cd, cd->sc_dk.dk_label, 0); 355 SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel fabricated\n")); 356 } 357 358 /* Check that the partition exists. */ 359 if (part != RAW_PART && (part >= cd->sc_dk.dk_label->d_npartitions || 360 cd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 361 error = ENXIO; 362 goto bad; 363 } 364 365out: /* Insure only one open at a time. */ 366 switch (fmt) { 367 case S_IFCHR: 368 cd->sc_dk.dk_copenmask |= (1 << part); 369 break; 370 case S_IFBLK: 371 cd->sc_dk.dk_bopenmask |= (1 << part); 372 break; 373 } 374 cd->sc_dk.dk_openmask = cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 375 sc_link->flags |= SDEV_OPEN; 376 SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n")); 377 378 /* It's OK to fall through because dk_openmask is now non-zero. */ 379bad: 380 if (cd->sc_dk.dk_openmask == 0) { 381 scsi_prevent(sc_link, PR_ALLOW, 382 SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE); 383 sc_link->flags &= ~(SDEV_OPEN | SDEV_MEDIA_LOADED); 384 } 385 386 cdunlock(cd); 387 device_unref(&cd->sc_dev); 388 return (error); 389} 390 391/* 392 * Close the device. Only called if we are the last occurrence of an open 393 * device. 394 */ 395int 396cdclose(dev_t dev, int flag, int fmt, struct proc *p) 397{ 398 struct cd_softc *cd; 399 int part = DISKPART(dev); 400 int error; 401 402 cd = cdlookup(DISKUNIT(dev)); 403 if (cd == NULL) 404 return ENXIO; 405 406 if ((error = cdlock(cd)) != 0) { 407 device_unref(&cd->sc_dev); 408 return error; 409 } 410 411 switch (fmt) { 412 case S_IFCHR: 413 cd->sc_dk.dk_copenmask &= ~(1 << part); 414 break; 415 case S_IFBLK: 416 cd->sc_dk.dk_bopenmask &= ~(1 << part); 417 break; 418 } 419 cd->sc_dk.dk_openmask = cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 420 421 if (cd->sc_dk.dk_openmask == 0) { 422 /* XXXX Must wait for I/O to complete! */ 423 424 scsi_prevent(cd->sc_link, PR_ALLOW, 425 SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY); 426 cd->sc_link->flags &= ~(SDEV_OPEN | SDEV_MEDIA_LOADED); 427 428 if (cd->sc_link->flags & SDEV_EJECTING) { 429 scsi_start(cd->sc_link, SSS_STOP|SSS_LOEJ, 0); 430 431 cd->sc_link->flags &= ~SDEV_EJECTING; 432 } 433 434 timeout_del(&cd->sc_timeout); 435 } 436 437 cdunlock(cd); 438 439 device_unref(&cd->sc_dev); 440 return 0; 441} 442 443/* 444 * Actually translate the requested transfer into one the physical driver can 445 * understand. The transfer is described by a buf and will include only one 446 * physical transfer. 447 */ 448void 449cdstrategy(struct buf *bp) 450{ 451 struct cd_softc *cd; 452 int s; 453 454 if ((cd = cdlookup(DISKUNIT(bp->b_dev))) == NULL) { 455 bp->b_error = ENXIO; 456 goto bad; 457 } 458 459 SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdstrategy: %ld bytes @ blk %d\n", 460 bp->b_bcount, bp->b_blkno)); 461 /* 462 * If the device has been made invalid, error out 463 * maybe the media changed, or no media loaded 464 */ 465 if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 466 bp->b_error = EIO; 467 goto bad; 468 } 469 /* 470 * The transfer must be a whole number of blocks. 471 */ 472 if ((bp->b_bcount % cd->sc_dk.dk_label->d_secsize) != 0) { 473 bp->b_error = EINVAL; 474 goto bad; 475 } 476 /* 477 * If it's a null transfer, return immediately 478 */ 479 if (bp->b_bcount == 0) 480 goto done; 481 482 /* 483 * Do bounds checking, adjust transfer. if error, process. 484 * If end of partition, just return. 485 */ 486 if (bounds_check_with_label(bp, cd->sc_dk.dk_label, 487 (cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0) 488 goto done; 489 490 s = splbio(); 491 492 /* 493 * Place it in the queue of disk activities for this disk 494 */ 495 disksort(&cd->buf_queue, bp); 496 497 /* 498 * Tell the device to get going on the transfer if it's 499 * not doing anything, otherwise just wait for completion 500 */ 501 cdstart(cd); 502 503 device_unref(&cd->sc_dev); 504 splx(s); 505 return; 506 507bad: 508 bp->b_flags |= B_ERROR; 509done: 510 /* 511 * Correctly set the buf to indicate a completed xfer 512 */ 513 bp->b_resid = bp->b_bcount; 514 s = splbio(); 515 biodone(bp); 516 splx(s); 517 if (cd != NULL) 518 device_unref(&cd->sc_dev); 519} 520 521/* 522 * cdstart looks to see if there is a buf waiting for the device 523 * and that the device is not already busy. If both are true, 524 * It deques the buf and creates a scsi command to perform the 525 * transfer in the buf. The transfer request will call scsi_done 526 * on completion, which will in turn call this routine again 527 * so that the next queued transfer is performed. 528 * The bufs are queued by the strategy routine (cdstrategy) 529 * 530 * This routine is also called after other non-queued requests 531 * have been made of the scsi driver, to ensure that the queue 532 * continues to be drained. 533 * 534 * must be called at the correct (highish) spl level 535 * cdstart() is called at splbio from cdstrategy, cdrestart and scsi_done 536 */ 537void 538cdstart(void *v) 539{ 540 struct cd_softc *cd = v; 541 struct scsi_link *sc_link = cd->sc_link; 542 struct buf *bp = 0; 543 struct buf *dp; 544 struct scsi_rw_big cmd_big; 545 struct scsi_rw cmd_small; 546 struct scsi_generic *cmdp; 547 int blkno, nblks, cmdlen, error; 548 struct partition *p; 549 550 splassert(IPL_BIO); 551 552 SC_DEBUG(sc_link, SDEV_DB2, ("cdstart\n")); 553 /* 554 * Check if the device has room for another command 555 */ 556 while (sc_link->openings > 0) { 557 /* 558 * there is excess capacity, but a special waits 559 * It'll need the adapter as soon as we clear out of the 560 * way and let it run (user level wait). 561 */ 562 if (sc_link->flags & SDEV_WAITING) { 563 sc_link->flags &= ~SDEV_WAITING; 564 wakeup((caddr_t)sc_link); 565 return; 566 } 567 568 /* 569 * See if there is a buf with work for us to do.. 570 */ 571 dp = &cd->buf_queue; 572 if ((bp = dp->b_actf) == NULL) /* yes, an assign */ 573 return; 574 dp->b_actf = bp->b_actf; 575 576 /* 577 * If the device has become invalid, abort all the 578 * reads and writes until all files have been closed and 579 * re-opened 580 */ 581 if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 582 bp->b_error = EIO; 583 bp->b_flags |= B_ERROR; 584 bp->b_resid = bp->b_bcount; 585 biodone(bp); 586 continue; 587 } 588 589 /* 590 * We have a buf, now we should make a command 591 * 592 * First, translate the block to absolute and put it in terms 593 * of the logical blocksize of the device. 594 */ 595 blkno = 596 bp->b_blkno / (cd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 597 p = &cd->sc_dk.dk_label->d_partitions[DISKPART(bp->b_dev)]; 598 blkno += DL_GETPOFFSET(p); 599 nblks = howmany(bp->b_bcount, cd->sc_dk.dk_label->d_secsize); 600 601 /* 602 * Fill out the scsi command. If the transfer will 603 * fit in a "small" cdb, use it. 604 */ 605 if (!(sc_link->flags & SDEV_ATAPI) && 606 !(sc_link->quirks & SDEV_ONLYBIG) && 607 ((blkno & 0x1fffff) == blkno) && 608 ((nblks & 0xff) == nblks)) { 609 /* 610 * We can fit in a small cdb. 611 */ 612 bzero(&cmd_small, sizeof(cmd_small)); 613 cmd_small.opcode = (bp->b_flags & B_READ) ? 614 READ_COMMAND : WRITE_COMMAND; 615 _lto3b(blkno, cmd_small.addr); 616 cmd_small.length = nblks & 0xff; 617 cmdlen = sizeof(cmd_small); 618 cmdp = (struct scsi_generic *)&cmd_small; 619 } else { 620 /* 621 * Need a large cdb. 622 */ 623 bzero(&cmd_big, sizeof(cmd_big)); 624 cmd_big.opcode = (bp->b_flags & B_READ) ? 625 READ_BIG : WRITE_BIG; 626 _lto4b(blkno, cmd_big.addr); 627 _lto2b(nblks, cmd_big.length); 628 cmdlen = sizeof(cmd_big); 629 cmdp = (struct scsi_generic *)&cmd_big; 630 } 631 632 /* Instrumentation. */ 633 disk_busy(&cd->sc_dk); 634 635 /* 636 * Call the routine that chats with the adapter. 637 * Note: we cannot sleep as we may be an interrupt 638 */ 639 error = scsi_scsi_cmd(sc_link, cmdp, cmdlen, 640 (u_char *) bp->b_data, bp->b_bcount, SCSI_RETRIES, 30000, 641 bp, SCSI_NOSLEEP | ((bp->b_flags & B_READ) ? SCSI_DATA_IN : 642 SCSI_DATA_OUT)); 643 switch (error) { 644 case 0: 645 timeout_del(&cd->sc_timeout); 646 break; 647 case EAGAIN: 648 /* 649 * The device can't start another i/o. Try again later. 650 */ 651 dp->b_actf = bp; 652 disk_unbusy(&cd->sc_dk, 0, 0); 653 timeout_add(&cd->sc_timeout, 1); 654 return; 655 default: 656 disk_unbusy(&cd->sc_dk, 0, 0); 657 printf("%s: not queued, error %d\n", 658 cd->sc_dev.dv_xname, error); 659 break; 660 } 661 } 662} 663 664void 665cdrestart(void *v) 666{ 667 int s; 668 669 s = splbio(); 670 cdstart(v); 671 splx(s); 672} 673 674void 675cddone(struct scsi_xfer *xs) 676{ 677 struct cd_softc *cd = xs->sc_link->device_softc; 678 679 if (xs->bp != NULL) 680 disk_unbusy(&cd->sc_dk, xs->bp->b_bcount - xs->bp->b_resid, 681 (xs->bp->b_flags & B_READ)); 682} 683 684void 685cdminphys(struct buf *bp) 686{ 687 struct cd_softc *cd; 688 long max; 689 690 cd = cdlookup(DISKUNIT(bp->b_dev)); 691 if (cd == NULL) 692 return; 693 694 /* 695 * If the device is ancient, we want to make sure that 696 * the transfer fits into a 6-byte cdb. 697 * 698 * XXX Note that the SCSI-I spec says that 256-block transfers 699 * are allowed in a 6-byte read/write, and are specified 700 * by setting the "length" to 0. However, we're conservative 701 * here, allowing only 255-block transfers in case an 702 * ancient device gets confused by length == 0. A length of 0 703 * in a 10-byte read/write actually means 0 blocks. 704 */ 705 if (cd->flags & CDF_ANCIENT) { 706 max = cd->sc_dk.dk_label->d_secsize * 0xff; 707 708 if (bp->b_bcount > max) 709 bp->b_bcount = max; 710 } 711 712 (*cd->sc_link->adapter->scsi_minphys)(bp); 713 714 device_unref(&cd->sc_dev); 715} 716 717int 718cdread(dev_t dev, struct uio *uio, int ioflag) 719{ 720 721 return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio)); 722} 723 724int 725cdwrite(dev_t dev, struct uio *uio, int ioflag) 726{ 727 728 return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio)); 729} 730 731/* 732 * Perform special action on behalf of the user. 733 * Knows about the internals of this device 734 */ 735int 736cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 737{ 738 struct cd_softc *cd; 739 struct disklabel *lp; 740 int part = DISKPART(dev); 741 int error = 0; 742 743 cd = cdlookup(DISKUNIT(dev)); 744 if (cd == NULL) 745 return ENXIO; 746 747 SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdioctl 0x%lx\n", cmd)); 748 749 /* 750 * If the device is not valid.. abandon ship 751 */ 752 if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 753 switch (cmd) { 754 case DIOCWLABEL: 755 case DIOCLOCK: 756 case DIOCEJECT: 757 case SCIOCIDENTIFY: 758 case SCIOCCOMMAND: 759 case SCIOCDEBUG: 760 case CDIOCLOADUNLOAD: 761 case SCIOCRESET: 762 case CDIOCGETVOL: 763 case CDIOCSETVOL: 764 case CDIOCSETMONO: 765 case CDIOCSETSTEREO: 766 case CDIOCSETMUTE: 767 case CDIOCSETLEFT: 768 case CDIOCSETRIGHT: 769 case CDIOCCLOSE: 770 case CDIOCEJECT: 771 case CDIOCALLOW: 772 case CDIOCPREVENT: 773 case CDIOCSETDEBUG: 774 case CDIOCCLRDEBUG: 775 case CDIOCRESET: 776 case DVD_AUTH: 777 case DVD_READ_STRUCT: 778 case MTIOCTOP: 779 if (part == RAW_PART) 780 break; 781 /* FALLTHROUGH */ 782 default: 783 if ((cd->sc_link->flags & SDEV_OPEN) == 0) 784 error = ENODEV; 785 else 786 error = EIO; 787 goto exit; 788 } 789 } 790 791 switch (cmd) { 792 case DIOCRLDINFO: 793 lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK); 794 cdgetdisklabel(dev, cd, lp, 0); 795 bcopy(lp, cd->sc_dk.dk_label, sizeof(*lp)); 796 free(lp, M_TEMP); 797 break; 798 case DIOCGDINFO: 799 case DIOCGPDINFO: 800 *(struct disklabel *)addr = *(cd->sc_dk.dk_label); 801 break; 802 803 case DIOCGPART: 804 ((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label; 805 ((struct partinfo *)addr)->part = 806 &cd->sc_dk.dk_label->d_partitions[DISKPART(dev)]; 807 break; 808 809 case DIOCWDINFO: 810 case DIOCSDINFO: 811 if ((flag & FWRITE) == 0) { 812 error = EBADF; 813 break; 814 } 815 816 if ((error = cdlock(cd)) != 0) 817 break; 818 819 cd->flags |= CDF_LABELLING; 820 821 error = setdisklabel(cd->sc_dk.dk_label, 822 (struct disklabel *)addr, /*cd->sc_dk.dk_openmask : */0); 823 if (error == 0) { 824 } 825 826 cd->flags &= ~CDF_LABELLING; 827 cdunlock(cd); 828 break; 829 830 case DIOCWLABEL: 831 error = EBADF; 832 break; 833 834 case CDIOCPLAYTRACKS: { 835 struct ioc_play_track *args = (struct ioc_play_track *)addr; 836 837 if ((error = cd_set_pa_immed(cd, 0)) != 0) 838 break; 839 error = cd_play_tracks(cd, args->start_track, 840 args->start_index, args->end_track, args->end_index); 841 break; 842 } 843 case CDIOCPLAYMSF: { 844 struct ioc_play_msf *args = (struct ioc_play_msf *)addr; 845 846 if ((error = cd_set_pa_immed(cd, 0)) != 0) 847 break; 848 error = cd_play_msf(cd, args->start_m, args->start_s, 849 args->start_f, args->end_m, args->end_s, args->end_f); 850 break; 851 } 852 case CDIOCPLAYBLOCKS: { 853 struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr; 854 855 if ((error = cd_set_pa_immed(cd, 0)) != 0) 856 break; 857 error = cd_play(cd, args->blk, args->len); 858 break; 859 } 860 case CDIOCREADSUBCHANNEL: { 861 struct ioc_read_subchannel *args 862 = (struct ioc_read_subchannel *)addr; 863 struct cd_sub_channel_info data; 864 int len = args->data_len; 865 if (len > sizeof(data) || 866 len < sizeof(struct cd_sub_channel_header)) { 867 error = EINVAL; 868 break; 869 } 870 error = cd_read_subchannel(cd, args->address_format, 871 args->data_format, args->track, 872 &data, len); 873 if (error) 874 break; 875 len = min(len, _2btol(data.header.data_len) + 876 sizeof(struct cd_sub_channel_header)); 877 error = copyout(&data, args->data, len); 878 break; 879 } 880 case CDIOREADTOCHEADER: { 881 struct ioc_toc_header th; 882 883 if ((error = cd_read_toc(cd, 0, 0, &th, sizeof(th), 0)) != 0) 884 break; 885 if (cd->sc_link->quirks & ADEV_LITTLETOC) 886 th.len = letoh16(th.len); 887 else 888 th.len = betoh16(th.len); 889 bcopy(&th, addr, sizeof(th)); 890 break; 891 } 892 case CDIOREADTOCENTRYS: { 893 struct cd_toc *toc; 894 struct ioc_read_toc_entry *te = 895 (struct ioc_read_toc_entry *)addr; 896 struct ioc_toc_header *th; 897 struct cd_toc_entry *cte; 898 int len = te->data_len; 899 int ntracks; 900 901 toc = malloc(sizeof(*toc), M_TEMP, M_WAITOK | M_ZERO); 902 903 th = &toc->header; 904 905 if (len > sizeof(toc->entries) || 906 len < sizeof(struct cd_toc_entry)) { 907 free(toc, M_TEMP); 908 error = EINVAL; 909 break; 910 } 911 error = cd_read_toc(cd, te->address_format, te->starting_track, 912 toc, len + sizeof(struct ioc_toc_header), 0); 913 if (error) { 914 free(toc, M_TEMP); 915 break; 916 } 917 if (te->address_format == CD_LBA_FORMAT) 918 for (ntracks = 919 th->ending_track - th->starting_track + 1; 920 ntracks >= 0; ntracks--) { 921 cte = &toc->entries[ntracks]; 922 cte->addr_type = CD_LBA_FORMAT; 923 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 924#if BYTE_ORDER == BIG_ENDIAN 925 swap16_multi((u_int16_t *)&cte->addr, 926 sizeof(cte->addr) / 2); 927#endif 928 } else 929 cte->addr.lba = betoh32(cte->addr.lba); 930 } 931 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 932 th->len = letoh16(th->len); 933 } else 934 th->len = betoh16(th->len); 935 len = min(len, th->len - (sizeof(th->starting_track) + 936 sizeof(th->ending_track))); 937 938 error = copyout(toc->entries, te->data, len); 939 free(toc, M_TEMP); 940 break; 941 } 942 case CDIOREADMSADDR: { 943 struct cd_toc *toc; 944 int sessno = *(int *)addr; 945 struct cd_toc_entry *cte; 946 947 if (sessno != 0) { 948 error = EINVAL; 949 break; 950 } 951 952 toc = malloc(sizeof(*toc), M_TEMP, M_WAITOK | M_ZERO); 953 954 error = cd_read_toc(cd, 0, 0, toc, 955 sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry), 956 0x40 /* control word for "get MS info" */); 957 958 if (error) { 959 free(toc, M_TEMP); 960 break; 961 } 962 963 cte = &toc->entries[0]; 964 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 965#if BYTE_ORDER == BIG_ENDIAN 966 swap16_multi((u_int16_t *)&cte->addr, 967 sizeof(cte->addr) / 2); 968#endif 969 } else 970 cte->addr.lba = betoh32(cte->addr.lba); 971 if (cd->sc_link->quirks & ADEV_LITTLETOC) 972 toc->header.len = letoh16(toc->header.len); 973 else 974 toc->header.len = betoh16(toc->header.len); 975 976 *(int *)addr = (toc->header.len >= 10 && cte->track > 1) ? 977 cte->addr.lba : 0; 978 free(toc, M_TEMP); 979 break; 980 } 981 case CDIOCSETPATCH: { 982 struct ioc_patch *arg = (struct ioc_patch *)addr; 983 984 error = cd_setchan(cd, arg->patch[0], arg->patch[1], 985 arg->patch[2], arg->patch[3], 0); 986 break; 987 } 988 case CDIOCGETVOL: { 989 struct ioc_vol *arg = (struct ioc_vol *)addr; 990 991 error = cd_getvol(cd, arg, 0); 992 break; 993 } 994 case CDIOCSETVOL: { 995 struct ioc_vol *arg = (struct ioc_vol *)addr; 996 997 error = cd_setvol(cd, arg, 0); 998 break; 999 } 1000 1001 case CDIOCSETMONO: 1002 error = cd_setchan(cd, BOTH_CHANNEL, BOTH_CHANNEL, MUTE_CHANNEL, 1003 MUTE_CHANNEL, 0); 1004 break; 1005 1006 case CDIOCSETSTEREO: 1007 error = cd_setchan(cd, LEFT_CHANNEL, RIGHT_CHANNEL, 1008 MUTE_CHANNEL, MUTE_CHANNEL, 0); 1009 break; 1010 1011 case CDIOCSETMUTE: 1012 error = cd_setchan(cd, MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 1013 MUTE_CHANNEL, 0); 1014 break; 1015 1016 case CDIOCSETLEFT: 1017 error = cd_setchan(cd, LEFT_CHANNEL, LEFT_CHANNEL, MUTE_CHANNEL, 1018 MUTE_CHANNEL, 0); 1019 break; 1020 1021 case CDIOCSETRIGHT: 1022 error = cd_setchan(cd, RIGHT_CHANNEL, RIGHT_CHANNEL, 1023 MUTE_CHANNEL, MUTE_CHANNEL, 0); 1024 break; 1025 1026 case CDIOCRESUME: 1027 error = cd_pause(cd, 1); 1028 break; 1029 1030 case CDIOCPAUSE: 1031 error = cd_pause(cd, 0); 1032 break; 1033 case CDIOCSTART: 1034 error = scsi_start(cd->sc_link, SSS_START, 0); 1035 break; 1036 1037 case CDIOCSTOP: 1038 error = scsi_start(cd->sc_link, SSS_STOP, 0); 1039 break; 1040 1041 close_tray: 1042 case CDIOCCLOSE: 1043 error = scsi_start(cd->sc_link, SSS_START|SSS_LOEJ, 1044 SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE); 1045 break; 1046 1047 case MTIOCTOP: 1048 if (((struct mtop *)addr)->mt_op == MTRETEN) 1049 goto close_tray; 1050 if (((struct mtop *)addr)->mt_op != MTOFFL) { 1051 error = EIO; 1052 break; 1053 } 1054 /* FALLTHROUGH */ 1055 case CDIOCEJECT: /* FALLTHROUGH */ 1056 case DIOCEJECT: 1057 cd->sc_link->flags |= SDEV_EJECTING; 1058 break; 1059 case CDIOCALLOW: 1060 error = scsi_prevent(cd->sc_link, PR_ALLOW, 0); 1061 break; 1062 case CDIOCPREVENT: 1063 error = scsi_prevent(cd->sc_link, PR_PREVENT, 0); 1064 break; 1065 case DIOCLOCK: 1066 error = scsi_prevent(cd->sc_link, 1067 (*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0); 1068 break; 1069 case CDIOCSETDEBUG: 1070 cd->sc_link->flags |= (SDEV_DB1 | SDEV_DB2); 1071 break; 1072 case CDIOCCLRDEBUG: 1073 cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); 1074 break; 1075 case CDIOCRESET: 1076 case SCIOCRESET: 1077 error = cd_reset(cd); 1078 break; 1079 case CDIOCLOADUNLOAD: { 1080 struct ioc_load_unload *args = (struct ioc_load_unload *)addr; 1081 1082 error = cd_load_unload(cd, args->options, args->slot); 1083 break; 1084 } 1085 1086 case DVD_AUTH: 1087 error = dvd_auth(cd, (union dvd_authinfo *)addr); 1088 break; 1089 case DVD_READ_STRUCT: 1090 error = dvd_read_struct(cd, (union dvd_struct *)addr); 1091 break; 1092 default: 1093 if (DISKPART(dev) != RAW_PART) { 1094 error = ENOTTY; 1095 break; 1096 } 1097 error = scsi_do_ioctl(cd->sc_link, dev, cmd, addr, flag, p); 1098 break; 1099 } 1100 1101 exit: 1102 1103 device_unref(&cd->sc_dev); 1104 return (error); 1105} 1106 1107/* 1108 * Load the label information on the named device 1109 * Actually fabricate a disklabel 1110 * 1111 * EVENTUALLY take information about different 1112 * data tracks from the TOC and put it in the disklabel 1113 */ 1114void 1115cdgetdisklabel(dev_t dev, struct cd_softc *cd, struct disklabel *lp, 1116 int spoofonly) 1117{ 1118 struct cd_toc *toc; 1119 char *errstring; 1120 int tocidx, n, audioonly = 1; 1121 1122 bzero(lp, sizeof(struct disklabel)); 1123 1124 toc = malloc(sizeof(*toc), M_TEMP, M_WAITOK | M_ZERO); 1125 1126 lp->d_secsize = cd->params.blksize; 1127 lp->d_ntracks = 1; 1128 lp->d_nsectors = 100; 1129 lp->d_secpercyl = 100; 1130 lp->d_ncylinders = (cd->params.disksize / 100) + 1; 1131 1132 if (cd->sc_link->flags & SDEV_ATAPI) { 1133 strncpy(lp->d_typename, "ATAPI CD-ROM", sizeof(lp->d_typename)); 1134 lp->d_type = DTYPE_ATAPI; 1135 } else { 1136 strncpy(lp->d_typename, "SCSI CD-ROM", sizeof(lp->d_typename)); 1137 lp->d_type = DTYPE_SCSI; 1138 } 1139 1140 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 1141 DL_SETDSIZE(lp, cd->params.disksize); 1142 lp->d_rpm = 300; 1143 lp->d_interleave = 1; 1144 lp->d_version = 1; 1145 1146 /* XXX - these values for BBSIZE and SBSIZE assume ffs */ 1147 lp->d_bbsize = BBSIZE; 1148 lp->d_sbsize = SBSIZE; 1149 1150 lp->d_magic = DISKMAGIC; 1151 lp->d_magic2 = DISKMAGIC; 1152 lp->d_checksum = dkcksum(lp); 1153 1154 if (cd_load_toc(cd, toc, CD_LBA_FORMAT)) { 1155 audioonly = 0; /* No valid TOC found == not an audio CD. */ 1156 goto done; 1157 } 1158 1159 n = toc->header.ending_track - toc->header.starting_track + 1; 1160 for (tocidx = 0; tocidx < n; tocidx++) 1161 if (toc->entries[tocidx].control & 4) { 1162 audioonly = 0; /* Found a non-audio track. */ 1163 goto done; 1164 } 1165 1166done: 1167 free(toc, M_TEMP); 1168 1169 if (!audioonly) { 1170 errstring = readdisklabel(DISKLABELDEV(dev), cdstrategy, lp, 1171 spoofonly); 1172 /*if (errstring) 1173 printf("%s: %s\n", cd->sc_dev.dv_xname, errstring);*/ 1174 } 1175} 1176 1177int 1178cd_setchan(struct cd_softc *cd, int p0, int p1, int p2, int p3, int flags) 1179{ 1180 union scsi_mode_sense_buf *data; 1181 struct cd_audio_page *audio = NULL; 1182 int error, big; 1183 1184 data = malloc(sizeof(*data), M_TEMP, M_NOWAIT); 1185 if (data == NULL) 1186 return (ENOMEM); 1187 1188 error = scsi_do_mode_sense(cd->sc_link, AUDIO_PAGE, data, 1189 (void **)&audio, NULL, NULL, NULL, sizeof(*audio), flags, &big); 1190 if (error == 0 && audio == NULL) 1191 error = EIO; 1192 1193 if (error == 0) { 1194 audio->port[LEFT_PORT].channels = p0; 1195 audio->port[RIGHT_PORT].channels = p1; 1196 audio->port[2].channels = p2; 1197 audio->port[3].channels = p3; 1198 if (big) 1199 error = scsi_mode_select_big(cd->sc_link, SMS_PF, 1200 &data->hdr_big, flags, 20000); 1201 else 1202 error = scsi_mode_select(cd->sc_link, SMS_PF, 1203 &data->hdr, flags, 20000); 1204 } 1205 1206 free(data, M_TEMP); 1207 return (error); 1208} 1209 1210int 1211cd_getvol(struct cd_softc *cd, struct ioc_vol *arg, int flags) 1212{ 1213 union scsi_mode_sense_buf *data; 1214 struct cd_audio_page *audio = NULL; 1215 int error; 1216 1217 data = malloc(sizeof(*data), M_TEMP, M_NOWAIT); 1218 if (data == NULL) 1219 return (ENOMEM); 1220 1221 error = scsi_do_mode_sense(cd->sc_link, AUDIO_PAGE, data, 1222 (void **)&audio, NULL, NULL, NULL, sizeof(*audio), flags, NULL); 1223 if (error == 0 && audio == NULL) 1224 error = EIO; 1225 1226 if (error == 0) { 1227 arg->vol[0] = audio->port[0].volume; 1228 arg->vol[1] = audio->port[1].volume; 1229 arg->vol[2] = audio->port[2].volume; 1230 arg->vol[3] = audio->port[3].volume; 1231 } 1232 1233 free(data, M_TEMP); 1234 return (0); 1235} 1236 1237int 1238cd_setvol(struct cd_softc *cd, const struct ioc_vol *arg, int flags) 1239{ 1240 union scsi_mode_sense_buf *data; 1241 struct cd_audio_page *audio = NULL; 1242 u_int8_t mask_volume[4]; 1243 int error, big; 1244 1245 data = malloc(sizeof(*data), M_TEMP, M_NOWAIT); 1246 if (data == NULL) 1247 return (ENOMEM); 1248 1249 error = scsi_do_mode_sense(cd->sc_link, 1250 AUDIO_PAGE | SMS_PAGE_CTRL_CHANGEABLE, data, (void **)&audio, NULL, 1251 NULL, NULL, sizeof(*audio), flags, NULL); 1252 if (error == 0 && audio == NULL) 1253 error = EIO; 1254 if (error != 0) { 1255 free(data, M_TEMP); 1256 return (error); 1257 } 1258 1259 mask_volume[0] = audio->port[0].volume; 1260 mask_volume[1] = audio->port[1].volume; 1261 mask_volume[2] = audio->port[2].volume; 1262 mask_volume[3] = audio->port[3].volume; 1263 1264 error = scsi_do_mode_sense(cd->sc_link, AUDIO_PAGE, data, 1265 (void **)&audio, NULL, NULL, NULL, sizeof(*audio), flags, &big); 1266 if (error == 0 && audio == NULL) 1267 error = EIO; 1268 if (error != 0) { 1269 free(data, M_TEMP); 1270 return (error); 1271 } 1272 1273 audio->port[0].volume = arg->vol[0] & mask_volume[0]; 1274 audio->port[1].volume = arg->vol[1] & mask_volume[1]; 1275 audio->port[2].volume = arg->vol[2] & mask_volume[2]; 1276 audio->port[3].volume = arg->vol[3] & mask_volume[3]; 1277 1278 if (big) 1279 error = scsi_mode_select_big(cd->sc_link, SMS_PF, 1280 &data->hdr_big, flags, 20000); 1281 else 1282 error = scsi_mode_select(cd->sc_link, SMS_PF, 1283 &data->hdr, flags, 20000); 1284 1285 free(data, M_TEMP); 1286 return (error); 1287} 1288 1289int 1290cd_load_unload(struct cd_softc *cd, int options, int slot) 1291{ 1292 struct scsi_load_unload cmd; 1293 1294 bzero(&cmd, sizeof(cmd)); 1295 cmd.opcode = LOAD_UNLOAD; 1296 cmd.options = options; /* ioctl uses ATAPI values */ 1297 cmd.slot = slot; 1298 1299 return (scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&cmd, 1300 sizeof(cmd), 0, 0, SCSI_RETRIES, 200000, NULL, 0)); 1301} 1302 1303int 1304cd_set_pa_immed(struct cd_softc *cd, int flags) 1305{ 1306 union scsi_mode_sense_buf *data; 1307 struct cd_audio_page *audio = NULL; 1308 int error, oflags, big; 1309 1310 if (cd->sc_link->flags & SDEV_ATAPI) 1311 /* XXX Noop? */ 1312 return (0); 1313 1314 data = malloc(sizeof(*data), M_TEMP, M_NOWAIT); 1315 if (data == NULL) 1316 return (ENOMEM); 1317 1318 error = scsi_do_mode_sense(cd->sc_link, AUDIO_PAGE, data, 1319 (void **)&audio, NULL, NULL, NULL, sizeof(*audio), flags, &big); 1320 if (error == 0 && audio == NULL) 1321 error = EIO; 1322 1323 if (error == 0) { 1324 oflags = audio->flags; 1325 audio->flags &= ~CD_PA_SOTC; 1326 audio->flags |= CD_PA_IMMED; 1327 if (audio->flags != oflags) { 1328 if (big) 1329 error = scsi_mode_select_big(cd->sc_link, 1330 SMS_PF, &data->hdr_big, flags, 1331 20000); 1332 else 1333 error = scsi_mode_select(cd->sc_link, SMS_PF, 1334 &data->hdr, flags, 20000); 1335 } 1336 } 1337 1338 free(data, M_TEMP); 1339 return (error); 1340} 1341 1342/* 1343 * Get scsi driver to send a "start playing" command 1344 */ 1345int 1346cd_play(struct cd_softc *cd, int blkno, int nblks) 1347{ 1348 struct scsi_play scsi_cmd; 1349 1350 bzero(&scsi_cmd, sizeof(scsi_cmd)); 1351 scsi_cmd.opcode = PLAY; 1352 _lto4b(blkno, scsi_cmd.blk_addr); 1353 _lto2b(nblks, scsi_cmd.xfer_len); 1354 return (scsi_scsi_cmd(cd->sc_link, 1355 (struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd), 1356 0, 0, SCSI_RETRIES, 200000, NULL, 0)); 1357} 1358 1359/* 1360 * Get scsi driver to send a "start playing" command 1361 */ 1362int 1363cd_play_tracks(struct cd_softc *cd, int strack, int sindex, int etrack, 1364 int eindex) 1365{ 1366 struct cd_toc *toc; 1367 u_char endf, ends, endm; 1368 int error; 1369 1370 if (!etrack) 1371 return (EIO); 1372 if (strack > etrack) 1373 return (EINVAL); 1374 1375 toc = malloc(sizeof(*toc), M_TEMP, M_WAITOK | M_ZERO); 1376 1377 if ((error = cd_load_toc(cd, toc, CD_MSF_FORMAT)) != 0) 1378 goto done; 1379 1380 if (++etrack > (toc->header.ending_track+1)) 1381 etrack = toc->header.ending_track+1; 1382 1383 strack -= toc->header.starting_track; 1384 etrack -= toc->header.starting_track; 1385 if (strack < 0) { 1386 error = EINVAL; 1387 goto done; 1388 } 1389 1390 /* 1391 * The track ends one frame before the next begins. The last track 1392 * is taken care of by the leadoff track. 1393 */ 1394 endm = toc->entries[etrack].addr.msf.minute; 1395 ends = toc->entries[etrack].addr.msf.second; 1396 endf = toc->entries[etrack].addr.msf.frame; 1397 if (endf-- == 0) { 1398 endf = CD_FRAMES - 1; 1399 if (ends-- == 0) { 1400 ends = CD_SECS - 1; 1401 if (endm-- == 0) { 1402 error = EINVAL; 1403 goto done; 1404 } 1405 } 1406 } 1407 1408 error = cd_play_msf(cd, toc->entries[strack].addr.msf.minute, 1409 toc->entries[strack].addr.msf.second, 1410 toc->entries[strack].addr.msf.frame, 1411 endm, ends, endf); 1412 1413done: 1414 free(toc, M_TEMP); 1415 return (error); 1416} 1417 1418/* 1419 * Get scsi driver to send a "play msf" command 1420 */ 1421int 1422cd_play_msf(struct cd_softc *cd, int startm, int starts, int startf, int endm, 1423 int ends, int endf) 1424{ 1425 struct scsi_play_msf scsi_cmd; 1426 1427 bzero(&scsi_cmd, sizeof(scsi_cmd)); 1428 scsi_cmd.opcode = PLAY_MSF; 1429 scsi_cmd.start_m = startm; 1430 scsi_cmd.start_s = starts; 1431 scsi_cmd.start_f = startf; 1432 scsi_cmd.end_m = endm; 1433 scsi_cmd.end_s = ends; 1434 scsi_cmd.end_f = endf; 1435 return (scsi_scsi_cmd(cd->sc_link, 1436 (struct scsi_generic *)&scsi_cmd, sizeof(scsi_cmd), 1437 0, 0, SCSI_RETRIES, 20000, NULL, 0)); 1438} 1439 1440/* 1441 * Get scsi driver to send a "start up" command 1442 */ 1443int 1444cd_pause(struct cd_softc *cd, int go) 1445{ 1446 struct scsi_pause scsi_cmd; 1447 1448 bzero(&scsi_cmd, sizeof(scsi_cmd)); 1449 scsi_cmd.opcode = PAUSE; 1450 scsi_cmd.resume = go; 1451 return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd, 1452 sizeof(scsi_cmd), 0, 0, SCSI_RETRIES, 2000, NULL, 0); 1453} 1454 1455/* 1456 * Get scsi driver to send a "RESET" command 1457 */ 1458int 1459cd_reset(struct cd_softc *cd) 1460{ 1461 return scsi_scsi_cmd(cd->sc_link, 0, 0, 0, 0, SCSI_RETRIES, 2000, NULL, 1462 SCSI_RESET); 1463} 1464 1465/* 1466 * Read subchannel 1467 */ 1468int 1469cd_read_subchannel(struct cd_softc *cd, int mode, int format, int track, 1470 struct cd_sub_channel_info *data, int len) 1471{ 1472 struct scsi_read_subchannel scsi_cmd; 1473 1474 bzero(&scsi_cmd, sizeof(scsi_cmd)); 1475 scsi_cmd.opcode = READ_SUBCHANNEL; 1476 if (mode == CD_MSF_FORMAT) 1477 scsi_cmd.byte2 |= CD_MSF; 1478 scsi_cmd.byte3 = SRS_SUBQ; 1479 scsi_cmd.subchan_format = format; 1480 scsi_cmd.track = track; 1481 _lto2b(len, scsi_cmd.data_len); 1482 return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd, 1483 sizeof(struct scsi_read_subchannel), (u_char *)data, len, 1484 SCSI_RETRIES, 5000, NULL, SCSI_DATA_IN|SCSI_SILENT); 1485} 1486 1487/* 1488 * Read table of contents 1489 */ 1490int 1491cd_read_toc(struct cd_softc *cd, int mode, int start, void *data, int len, 1492 int control) 1493{ 1494 struct scsi_read_toc scsi_cmd; 1495 1496 bzero(&scsi_cmd, sizeof(scsi_cmd)); 1497 bzero(data, len); 1498 1499 scsi_cmd.opcode = READ_TOC; 1500 if (mode == CD_MSF_FORMAT) 1501 scsi_cmd.byte2 |= CD_MSF; 1502 scsi_cmd.from_track = start; 1503 _lto2b(len, scsi_cmd.data_len); 1504 scsi_cmd.control = control; 1505 1506 return scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&scsi_cmd, 1507 sizeof(struct scsi_read_toc), (u_char *)data, len, SCSI_RETRIES, 1508 5000, NULL, SCSI_DATA_IN | SCSI_IGNORE_ILLEGAL_REQUEST); 1509} 1510 1511int 1512cd_load_toc(struct cd_softc *cd, struct cd_toc *toc, int fmt) 1513{ 1514 int n, len, error; 1515 1516 error = cd_read_toc(cd, 0, 0, toc, sizeof(toc->header), 0); 1517 1518 if (error == 0) { 1519 if (toc->header.ending_track < toc->header.starting_track) 1520 return (EIO); 1521 /* +2 to account for leading out track. */ 1522 n = toc->header.ending_track - toc->header.starting_track + 2; 1523 len = n * sizeof(struct cd_toc_entry) + sizeof(toc->header); 1524 error = cd_read_toc(cd, fmt, 0, toc, len, 0); 1525 } 1526 1527 return (error); 1528} 1529 1530 1531/* 1532 * Get the scsi driver to send a full inquiry to the device and use the 1533 * results to fill out the disk parameter structure. 1534 */ 1535int 1536cd_get_parms(struct cd_softc *cd, int flags) 1537{ 1538 /* Reasonable defaults for drives that don't support READ_CAPACITY */ 1539 cd->params.blksize = 2048; 1540 cd->params.disksize = 400000; 1541 1542 if (cd->sc_link->quirks & ADEV_NOCAPACITY) 1543 return (0); 1544 1545 cd->params.disksize = scsi_size(cd->sc_link, flags, 1546 &cd->params.blksize); 1547 1548 if ((cd->params.blksize < 512) || ((cd->params.blksize & 511) != 0)) 1549 cd->params.blksize = 2048; /* some drives lie ! */ 1550 1551 if (cd->params.disksize < 100) 1552 cd->params.disksize = 400000; 1553 1554 return (0); 1555} 1556 1557daddr64_t 1558cdsize(dev_t dev) 1559{ 1560 1561 /* CD-ROMs are read-only. */ 1562 return -1; 1563} 1564 1565int 1566cddump(dev_t dev, daddr64_t blkno, caddr_t va, size_t size) 1567{ 1568 /* Not implemented. */ 1569 return ENXIO; 1570} 1571 1572#define dvd_copy_key(dst, src) bcopy((src), (dst), DVD_KEY_SIZE) 1573#define dvd_copy_challenge(dst, src) bcopy((src), (dst), DVD_CHALLENGE_SIZE) 1574 1575int 1576dvd_auth(struct cd_softc *cd, union dvd_authinfo *a) 1577{ 1578 struct scsi_generic cmd; 1579 u_int8_t buf[20]; 1580 int error; 1581 1582 bzero(cmd.bytes, sizeof(cmd.bytes)); 1583 bzero(buf, sizeof(buf)); 1584 1585 switch (a->type) { 1586 case DVD_LU_SEND_AGID: 1587 cmd.opcode = GPCMD_REPORT_KEY; 1588 cmd.bytes[8] = 8; 1589 cmd.bytes[9] = 0 | (0 << 6); 1590 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8, 1591 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1592 if (error) 1593 return (error); 1594 a->lsa.agid = buf[7] >> 6; 1595 return (0); 1596 1597 case DVD_LU_SEND_CHALLENGE: 1598 cmd.opcode = GPCMD_REPORT_KEY; 1599 cmd.bytes[8] = 16; 1600 cmd.bytes[9] = 1 | (a->lsc.agid << 6); 1601 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16, 1602 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1603 if (error) 1604 return (error); 1605 dvd_copy_challenge(a->lsc.chal, &buf[4]); 1606 return (0); 1607 1608 case DVD_LU_SEND_KEY1: 1609 cmd.opcode = GPCMD_REPORT_KEY; 1610 cmd.bytes[8] = 12; 1611 cmd.bytes[9] = 2 | (a->lsk.agid << 6); 1612 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12, 1613 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1614 if (error) 1615 return (error); 1616 dvd_copy_key(a->lsk.key, &buf[4]); 1617 return (0); 1618 1619 case DVD_LU_SEND_TITLE_KEY: 1620 cmd.opcode = GPCMD_REPORT_KEY; 1621 _lto4b(a->lstk.lba, &cmd.bytes[1]); 1622 cmd.bytes[8] = 12; 1623 cmd.bytes[9] = 4 | (a->lstk.agid << 6); 1624 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12, 1625 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1626 if (error) 1627 return (error); 1628 a->lstk.cpm = (buf[4] >> 7) & 1; 1629 a->lstk.cp_sec = (buf[4] >> 6) & 1; 1630 a->lstk.cgms = (buf[4] >> 4) & 3; 1631 dvd_copy_key(a->lstk.title_key, &buf[5]); 1632 return (0); 1633 1634 case DVD_LU_SEND_ASF: 1635 cmd.opcode = GPCMD_REPORT_KEY; 1636 cmd.bytes[8] = 8; 1637 cmd.bytes[9] = 5 | (a->lsasf.agid << 6); 1638 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8, 1639 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1640 if (error) 1641 return (error); 1642 a->lsasf.asf = buf[7] & 1; 1643 return (0); 1644 1645 case DVD_HOST_SEND_CHALLENGE: 1646 cmd.opcode = GPCMD_SEND_KEY; 1647 cmd.bytes[8] = 16; 1648 cmd.bytes[9] = 1 | (a->hsc.agid << 6); 1649 buf[1] = 14; 1650 dvd_copy_challenge(&buf[4], a->hsc.chal); 1651 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16, 1652 SCSI_RETRIES, 30000, NULL, SCSI_DATA_OUT); 1653 if (error) 1654 return (error); 1655 a->type = DVD_LU_SEND_KEY1; 1656 return (0); 1657 1658 case DVD_HOST_SEND_KEY2: 1659 cmd.opcode = GPCMD_SEND_KEY; 1660 cmd.bytes[8] = 12; 1661 cmd.bytes[9] = 3 | (a->hsk.agid << 6); 1662 buf[1] = 10; 1663 dvd_copy_key(&buf[4], a->hsk.key); 1664 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 12, 1665 SCSI_RETRIES, 30000, NULL, SCSI_DATA_OUT); 1666 if (error) { 1667 a->type = DVD_AUTH_FAILURE; 1668 return (error); 1669 } 1670 a->type = DVD_AUTH_ESTABLISHED; 1671 return (0); 1672 1673 case DVD_INVALIDATE_AGID: 1674 cmd.opcode = GPCMD_REPORT_KEY; 1675 cmd.bytes[9] = 0x3f | (a->lsa.agid << 6); 1676 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 16, 1677 SCSI_RETRIES, 30000, NULL, 0); 1678 if (error) 1679 return (error); 1680 return (0); 1681 1682 case DVD_LU_SEND_RPC_STATE: 1683 cmd.opcode = GPCMD_REPORT_KEY; 1684 cmd.bytes[8] = 8; 1685 cmd.bytes[9] = 8 | (0 << 6); 1686 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8, 1687 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1688 if (error) 1689 return (error); 1690 a->lrpcs.type = (buf[4] >> 6) & 3; 1691 a->lrpcs.vra = (buf[4] >> 3) & 7; 1692 a->lrpcs.ucca = (buf[4]) & 7; 1693 a->lrpcs.region_mask = buf[5]; 1694 a->lrpcs.rpc_scheme = buf[6]; 1695 return (0); 1696 1697 case DVD_HOST_SEND_RPC_STATE: 1698 cmd.opcode = GPCMD_SEND_KEY; 1699 cmd.bytes[8] = 8; 1700 cmd.bytes[9] = 6 | (0 << 6); 1701 buf[1] = 6; 1702 buf[4] = a->hrpcs.pdrc; 1703 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, 8, 1704 SCSI_RETRIES, 30000, NULL, SCSI_DATA_OUT); 1705 if (error) 1706 return (error); 1707 return (0); 1708 1709 default: 1710 return (ENOTTY); 1711 } 1712} 1713 1714int 1715dvd_read_physical(cd, s) 1716 struct cd_softc *cd; 1717 union dvd_struct *s; 1718{ 1719 struct scsi_generic cmd; 1720 u_int8_t buf[4 + 4 * 20], *bufp; 1721 int error; 1722 struct dvd_layer *layer; 1723 int i; 1724 1725 bzero(cmd.bytes, sizeof(cmd.bytes)); 1726 bzero(buf, sizeof(buf)); 1727 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1728 cmd.bytes[6] = s->type; 1729 _lto2b(sizeof(buf), &cmd.bytes[7]); 1730 1731 cmd.bytes[5] = s->physical.layer_num; 1732 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf), 1733 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1734 if (error) 1735 return (error); 1736 for (i = 0, bufp = &buf[4], layer = &s->physical.layer[0]; i < 4; 1737 i++, bufp += 20, layer++) { 1738 bzero(layer, sizeof(*layer)); 1739 layer->book_version = bufp[0] & 0xf; 1740 layer->book_type = bufp[0] >> 4; 1741 layer->min_rate = bufp[1] & 0xf; 1742 layer->disc_size = bufp[1] >> 4; 1743 layer->layer_type = bufp[2] & 0xf; 1744 layer->track_path = (bufp[2] >> 4) & 1; 1745 layer->nlayers = (bufp[2] >> 5) & 3; 1746 layer->track_density = bufp[3] & 0xf; 1747 layer->linear_density = bufp[3] >> 4; 1748 layer->start_sector = _4btol(&bufp[4]); 1749 layer->end_sector = _4btol(&bufp[8]); 1750 layer->end_sector_l0 = _4btol(&bufp[12]); 1751 layer->bca = bufp[16] >> 7; 1752 } 1753 return (0); 1754} 1755 1756int 1757dvd_read_copyright(cd, s) 1758 struct cd_softc *cd; 1759 union dvd_struct *s; 1760{ 1761 struct scsi_generic cmd; 1762 u_int8_t buf[8]; 1763 int error; 1764 1765 bzero(cmd.bytes, sizeof(cmd.bytes)); 1766 bzero(buf, sizeof(buf)); 1767 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1768 cmd.bytes[6] = s->type; 1769 _lto2b(sizeof(buf), &cmd.bytes[7]); 1770 1771 cmd.bytes[5] = s->copyright.layer_num; 1772 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf), 1773 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1774 if (error) 1775 return (error); 1776 s->copyright.cpst = buf[4]; 1777 s->copyright.rmi = buf[5]; 1778 return (0); 1779} 1780 1781int 1782dvd_read_disckey(cd, s) 1783 struct cd_softc *cd; 1784 union dvd_struct *s; 1785{ 1786 struct scsi_read_dvd_structure cmd; 1787 struct scsi_read_dvd_structure_data *buf; 1788 int error; 1789 1790 buf = malloc(sizeof(*buf), M_TEMP, M_WAITOK | M_ZERO); 1791 if (buf == NULL) 1792 return (ENOMEM); 1793 1794 bzero(&cmd, sizeof(cmd)); 1795 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1796 cmd.format = s->type; 1797 cmd.agid = s->disckey.agid << 6; 1798 _lto2b(sizeof(*buf), cmd.length); 1799 1800 error = scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&cmd, 1801 sizeof(cmd), (u_char *)buf, sizeof(*buf), SCSI_RETRIES, 30000, NULL, 1802 SCSI_DATA_IN); 1803 if (error == 0) 1804 bcopy(buf->data, s->disckey.value, sizeof(s->disckey.value)); 1805 1806 free(buf, M_TEMP); 1807 return (error); 1808} 1809 1810int 1811dvd_read_bca(cd, s) 1812 struct cd_softc *cd; 1813 union dvd_struct *s; 1814{ 1815 struct scsi_generic cmd; 1816 u_int8_t buf[4 + 188]; 1817 int error; 1818 1819 bzero(cmd.bytes, sizeof(cmd.bytes)); 1820 bzero(buf, sizeof(buf)); 1821 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1822 cmd.bytes[6] = s->type; 1823 _lto2b(sizeof(buf), &cmd.bytes[7]); 1824 1825 error = scsi_scsi_cmd(cd->sc_link, &cmd, sizeof(cmd), buf, sizeof(buf), 1826 SCSI_RETRIES, 30000, NULL, SCSI_DATA_IN); 1827 if (error) 1828 return (error); 1829 s->bca.len = _2btol(&buf[0]); 1830 if (s->bca.len < 12 || s->bca.len > 188) 1831 return (EIO); 1832 bcopy(&buf[4], s->bca.value, s->bca.len); 1833 return (0); 1834} 1835 1836int 1837dvd_read_manufact(cd, s) 1838 struct cd_softc *cd; 1839 union dvd_struct *s; 1840{ 1841 struct scsi_read_dvd_structure cmd; 1842 struct scsi_read_dvd_structure_data *buf; 1843 int error; 1844 1845 buf = malloc(sizeof(*buf), M_TEMP, M_WAITOK | M_ZERO); 1846 if (buf == NULL) 1847 return (ENOMEM); 1848 1849 bzero(&cmd, sizeof(cmd)); 1850 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1851 cmd.format = s->type; 1852 _lto2b(sizeof(*buf), cmd.length); 1853 1854 error = scsi_scsi_cmd(cd->sc_link, (struct scsi_generic *)&cmd, 1855 sizeof(cmd), (u_char *)buf, sizeof(*buf), SCSI_RETRIES, 30000, NULL, 1856 SCSI_DATA_IN); 1857 if (error == 0) { 1858 s->manufact.len = _2btol(buf->len); 1859 if (s->manufact.len >= 0 && s->manufact.len <= 2048) 1860 bcopy(buf->data, s->manufact.value, s->manufact.len); 1861 else 1862 error = EIO; 1863 } 1864 1865 free(buf, M_TEMP); 1866 return (error); 1867} 1868 1869int 1870dvd_read_struct(cd, s) 1871 struct cd_softc *cd; 1872 union dvd_struct *s; 1873{ 1874 1875 switch (s->type) { 1876 case DVD_STRUCT_PHYSICAL: 1877 return (dvd_read_physical(cd, s)); 1878 case DVD_STRUCT_COPYRIGHT: 1879 return (dvd_read_copyright(cd, s)); 1880 case DVD_STRUCT_DISCKEY: 1881 return (dvd_read_disckey(cd, s)); 1882 case DVD_STRUCT_BCA: 1883 return (dvd_read_bca(cd, s)); 1884 case DVD_STRUCT_MANUFACT: 1885 return (dvd_read_manufact(cd, s)); 1886 default: 1887 return (EINVAL); 1888 } 1889} 1890 1891void 1892cd_powerhook(int why, void *arg) 1893{ 1894 struct cd_softc *cd = arg; 1895 1896 /* 1897 * When resuming, hardware may have forgotten we locked it. So if 1898 * there are any open partitions, lock the CD. 1899 */ 1900 if (why == PWR_RESUME && cd->sc_dk.dk_openmask != 0) 1901 scsi_prevent(cd->sc_link, PR_PREVENT, 1902 SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE); 1903} 1904 1905int 1906cd_interpret_sense(struct scsi_xfer *xs) 1907{ 1908 struct scsi_sense_data *sense = &xs->sense; 1909 struct scsi_link *sc_link = xs->sc_link; 1910 u_int8_t skey = sense->flags & SSD_KEY; 1911 u_int8_t serr = sense->error_code & SSD_ERRCODE; 1912 1913 if (((sc_link->flags & SDEV_OPEN) == 0) || 1914 (serr != SSD_ERRCODE_CURRENT && serr != SSD_ERRCODE_DEFERRED)) 1915 return (EJUSTRETURN); /* let the generic code handle it */ 1916 1917 /* 1918 * We do custom processing in cd for the unit becoming ready 1919 * case. We do not allow xs->retries to be decremented on the 1920 * "Unit Becoming Ready" case. This is because CD drives 1921 * report "Unit Becoming Ready" when loading media and can 1922 * take a long time. Rather than having a massive timeout for 1923 * all operations (which would cause other problems), we allow 1924 * operations to wait (but be interruptable with Ctrl-C) 1925 * forever as long as the drive is reporting that it is 1926 * becoming ready. All other cases of not being ready are 1927 * handled by the default handler. 1928 */ 1929 switch(skey) { 1930 case SKEY_NOT_READY: 1931 if ((xs->flags & SCSI_IGNORE_NOT_READY) != 0) 1932 return (0); 1933 if (ASC_ASCQ(sense) == SENSE_NOT_READY_BECOMING_READY) { 1934 SC_DEBUG(sc_link, SDEV_DB1, ("not ready: busy (%#x)\n", 1935 sense->add_sense_code_qual)); 1936 /* don't count this as a retry */ 1937 xs->retries++; 1938 return (scsi_delay(xs, 1)); 1939 } 1940 break; 1941 /* XXX more to come here for a few other cases */ 1942 default: 1943 break; 1944 } 1945 return (EJUSTRETURN); /* use generic handler in scsi_base */ 1946} 1947 1948/* 1949 * Remove unprocessed buffers from queue. 1950 */ 1951void 1952cd_kill_buffers(struct cd_softc *cd) 1953{ 1954 struct buf *dp, *bp; 1955 int s; 1956 1957 s = splbio(); 1958 for (dp = &cd->buf_queue; (bp = dp->b_actf) != NULL; ) { 1959 dp->b_actf = bp->b_actf; 1960 1961 bp->b_error = ENXIO; 1962 bp->b_flags |= B_ERROR; 1963 biodone(bp); 1964 } 1965 splx(s); 1966} 1967