1 /* $NetBSD: cd.c,v 1.157 2001/09/02 13:11:53 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2001 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 "rnd.h" 57 58 #include <sys/types.h> 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/kernel.h> 62 #include <sys/file.h> 63 #include <sys/stat.h> 64 #include <sys/ioctl.h> 65 #include <sys/buf.h> 66 #include <sys/uio.h> 67 #include <sys/malloc.h> 68 #include <sys/errno.h> 69 #include <sys/device.h> 70 #include <sys/disklabel.h> 71 #include <sys/disk.h> 72 #include <sys/cdio.h> 73 #include <sys/dvdio.h> 74 #include <sys/scsiio.h> 75 #include <sys/proc.h> 76 #include <sys/conf.h> 77 #include <sys/vnode.h> 78 #if NRND > 0 79 #include <sys/rnd.h> 80 #endif 81 82 #include <dev/scsipi/scsipi_all.h> 83 #include <dev/scsipi/scsipi_cd.h> 84 #include <dev/scsipi/scsipi_disk.h> /* rw_big and start_stop come */ 85 /* from there */ 86 #include <dev/scsipi/scsi_disk.h> /* rw comes from there */ 87 #include <dev/scsipi/scsipiconf.h> 88 #include <dev/scsipi/cdvar.h> 89 90 #include "cd.h" /* NCD_SCSIBUS and NCD_ATAPIBUS come from here */ 91 92 #define CDUNIT(z) DISKUNIT(z) 93 #define CDPART(z) DISKPART(z) 94 #define CDMINOR(unit, part) DISKMINOR(unit, part) 95 #define MAKECDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 96 97 #define MAXTRACK 99 98 #define CD_BLOCK_OFFSET 150 99 #define CD_FRAMES 75 100 #define CD_SECS 60 101 102 struct cd_toc { 103 struct ioc_toc_header header; 104 struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */ 105 /* leadout */ 106 }; 107 108 int cdlock __P((struct cd_softc *)); 109 void cdunlock __P((struct cd_softc *)); 110 void cdstart __P((struct scsipi_periph *)); 111 void cdminphys __P((struct buf *)); 112 void cdgetdefaultlabel __P((struct cd_softc *, struct disklabel *)); 113 void cdgetdisklabel __P((struct cd_softc *)); 114 void cddone __P((struct scsipi_xfer *)); 115 void cdbounce __P((struct buf *)); 116 int cd_interpret_sense __P((struct scsipi_xfer *)); 117 u_long cd_size __P((struct cd_softc *, int)); 118 void lba2msf __P((u_long, u_char *, u_char *, u_char *)); 119 u_long msf2lba __P((u_char, u_char, u_char)); 120 int cd_play __P((struct cd_softc *, int, int)); 121 int cd_play_tracks __P((struct cd_softc *, int, int, int, int)); 122 int cd_play_msf __P((struct cd_softc *, int, int, int, int, int, int)); 123 int cd_pause __P((struct cd_softc *, int)); 124 int cd_reset __P((struct cd_softc *)); 125 int cd_read_subchannel __P((struct cd_softc *, int, int, int, 126 struct cd_sub_channel_info *, int, int)); 127 int cd_read_toc __P((struct cd_softc *, int, int, void *, int, int, int)); 128 int cd_get_parms __P((struct cd_softc *, int)); 129 int cd_load_toc __P((struct cd_softc *, struct cd_toc *, int)); 130 int dvd_auth __P((struct cd_softc *, dvd_authinfo *)); 131 int dvd_read_physical __P((struct cd_softc *, dvd_struct *)); 132 int dvd_read_copyright __P((struct cd_softc *, dvd_struct *)); 133 int dvd_read_disckey __P((struct cd_softc *, dvd_struct *)); 134 int dvd_read_bca __P((struct cd_softc *, dvd_struct *)); 135 int dvd_read_manufact __P((struct cd_softc *, dvd_struct *)); 136 int dvd_read_struct __P((struct cd_softc *, dvd_struct *)); 137 138 extern struct cfdriver cd_cd; 139 140 struct dkdriver cddkdriver = { cdstrategy }; 141 142 const struct scsipi_periphsw cd_switch = { 143 cd_interpret_sense, /* use our error handler first */ 144 cdstart, /* we have a queue, which is started by this */ 145 NULL, /* we do not have an async handler */ 146 cddone, /* deal with stats at interrupt time */ 147 }; 148 149 /* 150 * The routine called by the low level scsi routine when it discovers 151 * A device suitable for this driver 152 */ 153 void 154 cdattach(parent, cd, periph, ops) 155 struct device *parent; 156 struct cd_softc *cd; 157 struct scsipi_periph *periph; 158 const struct cd_ops *ops; 159 { 160 SC_DEBUG(periph, SCSIPI_DB2, ("cdattach: ")); 161 162 BUFQ_INIT(&cd->buf_queue); 163 164 /* 165 * Store information needed to contact our base driver 166 */ 167 cd->sc_periph = periph; 168 cd->sc_ops = ops; 169 170 periph->periph_dev = &cd->sc_dev; 171 periph->periph_switch = &cd_switch; 172 173 /* 174 * Increase our openings to the maximum-per-periph 175 * supported by the adapter. This will either be 176 * clamped down or grown by the adapter if necessary. 177 */ 178 periph->periph_openings = 179 SCSIPI_CHAN_MAX_PERIPH(periph->periph_channel); 180 periph->periph_flags |= PERIPH_GROW_OPENINGS; 181 182 /* 183 * Initialize and attach the disk structure. 184 */ 185 cd->sc_dk.dk_driver = &cddkdriver; 186 cd->sc_dk.dk_name = cd->sc_dev.dv_xname; 187 disk_attach(&cd->sc_dk); 188 189 #ifdef __BROKEN_DK_ESTABLISH 190 dk_establish(&cd->sc_dk, &cd->sc_dev); /* XXX */ 191 #endif 192 193 printf("\n"); 194 195 #if NRND > 0 196 rnd_attach_source(&cd->rnd_source, cd->sc_dev.dv_xname, 197 RND_TYPE_DISK, 0); 198 #endif 199 } 200 201 int 202 cdactivate(self, act) 203 struct device *self; 204 enum devact act; 205 { 206 int rv = 0; 207 208 switch (act) { 209 case DVACT_ACTIVATE: 210 rv = EOPNOTSUPP; 211 break; 212 213 case DVACT_DEACTIVATE: 214 /* 215 * Nothing to do; we key off the device's DVF_ACTIVE. 216 */ 217 break; 218 } 219 return (rv); 220 } 221 222 int 223 cddetach(self, flags) 224 struct device *self; 225 int flags; 226 { 227 struct cd_softc *cd = (struct cd_softc *) self; 228 struct buf *bp; 229 int s, bmaj, cmaj, i, mn; 230 231 /* locate the major number */ 232 for (bmaj = 0; bmaj <= nblkdev; bmaj++) 233 if (bdevsw[bmaj].d_open == cdopen) 234 break; 235 for (cmaj = 0; cmaj <= nchrdev; cmaj++) 236 if (cdevsw[cmaj].d_open == cdopen) 237 break; 238 239 s = splbio(); 240 241 /* Kill off any queued buffers. */ 242 while ((bp = BUFQ_FIRST(&cd->buf_queue)) != NULL) { 243 BUFQ_REMOVE(&cd->buf_queue, bp); 244 bp->b_error = EIO; 245 bp->b_flags |= B_ERROR; 246 bp->b_resid = bp->b_bcount; 247 biodone(bp); 248 } 249 250 /* Kill off any pending commands. */ 251 scsipi_kill_pending(cd->sc_periph); 252 253 splx(s); 254 255 /* Nuke the vnodes for any open instances */ 256 for (i = 0; i < MAXPARTITIONS; i++) { 257 mn = CDMINOR(self->dv_unit, i); 258 vdevgone(bmaj, mn, mn, VBLK); 259 vdevgone(cmaj, mn, mn, VCHR); 260 } 261 262 /* Detach from the disk list. */ 263 disk_detach(&cd->sc_dk); 264 265 #if 0 266 /* Get rid of the shutdown hook. */ 267 if (cd->sc_sdhook != NULL) 268 shutdownhook_disestablish(cd->sc_sdhook); 269 #endif 270 271 #if NRND > 0 272 /* Unhook the entropy source. */ 273 rnd_detach_source(&cd->rnd_source); 274 #endif 275 276 return (0); 277 } 278 279 /* 280 * Wait interruptibly for an exclusive lock. 281 * 282 * XXX 283 * Several drivers do this; it should be abstracted and made MP-safe. 284 */ 285 int 286 cdlock(cd) 287 struct cd_softc *cd; 288 { 289 int error; 290 291 while ((cd->flags & CDF_LOCKED) != 0) { 292 cd->flags |= CDF_WANTED; 293 if ((error = tsleep(cd, PRIBIO | PCATCH, "cdlck", 0)) != 0) 294 return (error); 295 } 296 cd->flags |= CDF_LOCKED; 297 return (0); 298 } 299 300 /* 301 * Unlock and wake up any waiters. 302 */ 303 void 304 cdunlock(cd) 305 struct cd_softc *cd; 306 { 307 308 cd->flags &= ~CDF_LOCKED; 309 if ((cd->flags & CDF_WANTED) != 0) { 310 cd->flags &= ~CDF_WANTED; 311 wakeup(cd); 312 } 313 } 314 315 /* 316 * open the device. Make sure the partition info is a up-to-date as can be. 317 */ 318 int 319 cdopen(dev, flag, fmt, p) 320 dev_t dev; 321 int flag, fmt; 322 struct proc *p; 323 { 324 struct cd_softc *cd; 325 struct scsipi_periph *periph; 326 struct scsipi_adapter *adapt; 327 struct cd_sub_channel_info data; 328 int unit, part; 329 int error; 330 331 unit = CDUNIT(dev); 332 if (unit >= cd_cd.cd_ndevs) 333 return (ENXIO); 334 cd = cd_cd.cd_devs[unit]; 335 if (cd == NULL) 336 return (ENXIO); 337 338 periph = cd->sc_periph; 339 adapt = periph->periph_channel->chan_adapter; 340 part = CDPART(dev); 341 342 SC_DEBUG(periph, SCSIPI_DB1, 343 ("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit, 344 cd_cd.cd_ndevs, CDPART(dev))); 345 346 /* 347 * If this is the first open of this device, add a reference 348 * to the adapter. 349 */ 350 if (cd->sc_dk.dk_openmask == 0 && 351 (error = scsipi_adapter_addref(adapt)) != 0) 352 return (error); 353 354 if ((error = cdlock(cd)) != 0) 355 goto bad4; 356 357 if ((periph->periph_flags & PERIPH_OPEN) != 0) { 358 /* 359 * If any partition is open, but the disk has been invalidated, 360 * disallow further opens. 361 */ 362 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 && 363 (part != RAW_PART || fmt != S_IFCHR )) { 364 error = EIO; 365 goto bad3; 366 } 367 } else { 368 /* Check that it is still responding and ok. */ 369 error = scsipi_test_unit_ready(periph, 370 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 371 XS_CTL_SILENT_NODEV); 372 SC_DEBUG(periph, SCSIPI_DB1, 373 ("cdopen: scsipi_test_unit_ready, error=%d\n", error)); 374 if (error) { 375 if (part != RAW_PART || fmt != S_IFCHR) 376 goto bad3; 377 else 378 goto out; 379 } 380 381 /* Don't try to start the unit if audio is playing. */ 382 error = cd_read_subchannel(cd, CD_LBA_FORMAT, 383 CD_CURRENT_POSITION, 0, &data, sizeof(data), 384 XS_CTL_DATA_ONSTACK); 385 if ((data.header.audio_status != CD_AS_PLAY_IN_PROGRESS && 386 data.header.audio_status != CD_AS_PLAY_PAUSED) || error) { 387 /* 388 * Start the pack spinning if necessary. Always 389 * allow the raw parition to be opened, for raw 390 * IOCTLs. Data transfers will check for 391 * SDEV_MEDIA_LOADED. 392 */ 393 error = scsipi_start(periph, SSS_START, 394 XS_CTL_IGNORE_ILLEGAL_REQUEST | 395 XS_CTL_IGNORE_MEDIA_CHANGE | 396 XS_CTL_SILENT); 397 SC_DEBUG(periph, SCSIPI_DB1, 398 ("cdopen: scsipi_start, error=%d\n", error)); 399 if (error) { 400 if (part != RAW_PART || fmt != S_IFCHR) 401 goto bad3; 402 else 403 goto out; 404 } 405 } 406 407 periph->periph_flags |= PERIPH_OPEN; 408 409 /* Lock the pack in. */ 410 error = scsipi_prevent(periph, PR_PREVENT, 411 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 412 SC_DEBUG(periph, SCSIPI_DB1, 413 ("cdopen: scsipi_prevent, error=%d\n", error)); 414 if (error) 415 goto bad; 416 417 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 418 periph->periph_flags |= PERIPH_MEDIA_LOADED; 419 420 /* Load the physical device parameters. */ 421 if (cd_get_parms(cd, 0) != 0) { 422 error = ENXIO; 423 goto bad2; 424 } 425 SC_DEBUG(periph, SCSIPI_DB3, ("Params loaded ")); 426 427 /* Fabricate a disk label. */ 428 cdgetdisklabel(cd); 429 SC_DEBUG(periph, SCSIPI_DB3, ("Disklabel fabricated ")); 430 } 431 } 432 433 /* Check that the partition exists. */ 434 if (part != RAW_PART && 435 (part >= cd->sc_dk.dk_label->d_npartitions || 436 cd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 437 error = ENXIO; 438 goto bad; 439 } 440 441 out: /* Insure only one open at a time. */ 442 switch (fmt) { 443 case S_IFCHR: 444 cd->sc_dk.dk_copenmask |= (1 << part); 445 break; 446 case S_IFBLK: 447 cd->sc_dk.dk_bopenmask |= (1 << part); 448 break; 449 } 450 cd->sc_dk.dk_openmask = 451 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 452 453 SC_DEBUG(periph, SCSIPI_DB3, ("open complete\n")); 454 cdunlock(cd); 455 return (0); 456 457 bad2: 458 periph->periph_flags &= ~PERIPH_MEDIA_LOADED; 459 460 bad: 461 if (cd->sc_dk.dk_openmask == 0) { 462 scsipi_prevent(periph, PR_ALLOW, 463 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 464 periph->periph_flags &= ~PERIPH_OPEN; 465 } 466 467 bad3: 468 cdunlock(cd); 469 bad4: 470 if (cd->sc_dk.dk_openmask == 0) 471 scsipi_adapter_delref(adapt); 472 return (error); 473 } 474 475 /* 476 * close the device.. only called if we are the LAST 477 * occurence of an open device 478 */ 479 int 480 cdclose(dev, flag, fmt, p) 481 dev_t dev; 482 int flag, fmt; 483 struct proc *p; 484 { 485 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 486 struct scsipi_periph *periph = cd->sc_periph; 487 struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter; 488 int part = CDPART(dev); 489 int error; 490 491 if ((error = cdlock(cd)) != 0) 492 return (error); 493 494 switch (fmt) { 495 case S_IFCHR: 496 cd->sc_dk.dk_copenmask &= ~(1 << part); 497 break; 498 case S_IFBLK: 499 cd->sc_dk.dk_bopenmask &= ~(1 << part); 500 break; 501 } 502 cd->sc_dk.dk_openmask = 503 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 504 505 if (cd->sc_dk.dk_openmask == 0) { 506 scsipi_wait_drain(periph); 507 508 scsipi_prevent(periph, PR_ALLOW, 509 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 510 XS_CTL_IGNORE_NOT_READY); 511 periph->periph_flags &= ~PERIPH_OPEN; 512 513 scsipi_wait_drain(periph); 514 515 scsipi_adapter_delref(adapt); 516 } 517 518 cdunlock(cd); 519 return (0); 520 } 521 522 /* 523 * Actually translate the requested transfer into one the physical driver can 524 * understand. The transfer is described by a buf and will include only one 525 * physical transfer. 526 */ 527 void 528 cdstrategy(bp) 529 struct buf *bp; 530 { 531 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 532 struct disklabel *lp; 533 struct scsipi_periph *periph = cd->sc_periph; 534 daddr_t blkno; 535 int s; 536 537 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdstrategy ")); 538 SC_DEBUG(cd->sc_periph, SCSIPI_DB1, 539 ("%ld bytes @ blk %d\n", bp->b_bcount, bp->b_blkno)); 540 /* 541 * If the device has been made invalid, error out 542 * maybe the media changed 543 */ 544 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 545 if (periph->periph_flags & PERIPH_OPEN) 546 bp->b_error = EIO; 547 else 548 bp->b_error = ENODEV; 549 goto bad; 550 } 551 552 lp = cd->sc_dk.dk_label; 553 554 /* 555 * The transfer must be a whole number of blocks, offset must not 556 * be negative. 557 */ 558 if ((bp->b_bcount % lp->d_secsize) != 0 || 559 bp->b_blkno < 0 ) { 560 bp->b_error = EINVAL; 561 goto bad; 562 } 563 /* 564 * If it's a null transfer, return immediately 565 */ 566 if (bp->b_bcount == 0) 567 goto done; 568 569 /* 570 * Do bounds checking, adjust transfer. if error, process. 571 * If end of partition, just return. 572 */ 573 if (CDPART(bp->b_dev) != RAW_PART && 574 bounds_check_with_label(bp, lp, 575 (cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0) 576 goto done; 577 578 /* 579 * Now convert the block number to absolute and put it in 580 * terms of the device's logical block size. 581 */ 582 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 583 if (CDPART(bp->b_dev) != RAW_PART) 584 blkno += lp->d_partitions[CDPART(bp->b_dev)].p_offset; 585 586 bp->b_rawblkno = blkno; 587 588 /* 589 * If the disklabel sector size does not match the device 590 * sector size we may need to do some extra work. 591 */ 592 if (lp->d_secsize != cd->params.blksize) { 593 594 /* 595 * If the xfer is not a multiple of the device block size 596 * or it is not block aligned, we need to bounce it. 597 */ 598 if ((bp->b_bcount % cd->params.blksize) != 0 || 599 ((blkno * lp->d_secsize) % cd->params.blksize) != 0) { 600 struct buf *nbp; 601 void *bounce = NULL; 602 long count; 603 604 if ((bp->b_flags & B_READ) == 0) { 605 606 /* XXXX We don't support bouncing writes. */ 607 bp->b_error = EACCES; 608 goto bad; 609 } 610 count = ((blkno * lp->d_secsize) % cd->params.blksize); 611 /* XXX Store starting offset in bp->b_rawblkno */ 612 bp->b_rawblkno = count; 613 614 count += bp->b_bcount; 615 count = roundup(count, cd->params.blksize); 616 617 blkno = ((blkno * lp->d_secsize) / cd->params.blksize); 618 s = splbio(); 619 nbp = pool_get(&bufpool, PR_NOWAIT); 620 splx(s); 621 if (!nbp) { 622 /* No memory -- fail the iop. */ 623 bp->b_error = ENOMEM; 624 goto bad; 625 } 626 bounce = malloc(count, M_DEVBUF, M_NOWAIT); 627 if (!bounce) { 628 /* No memory -- fail the iop. */ 629 s = splbio(); 630 pool_put(&bufpool, nbp); 631 splx(s); 632 bp->b_error = ENOMEM; 633 goto bad; 634 } 635 636 /* Set up the IOP to the bounce buffer. */ 637 nbp->b_error = 0; 638 nbp->b_proc = bp->b_proc; 639 nbp->b_vp = NULLVP; 640 641 nbp->b_bcount = count; 642 nbp->b_bufsize = count; 643 nbp->b_data = bounce; 644 645 LIST_INIT(&nbp->b_dep); 646 nbp->b_rawblkno = blkno; 647 648 /* We need to do a read-modify-write operation */ 649 nbp->b_flags = bp->b_flags | B_READ | B_CALL; 650 nbp->b_iodone = cdbounce; 651 652 /* Put ptr to orig buf in b_private and use new buf */ 653 nbp->b_private = bp; 654 bp = nbp; 655 656 } else { 657 /* Xfer is aligned -- just adjust the start block */ 658 bp->b_rawblkno = (blkno * lp->d_secsize) / 659 cd->params.blksize; 660 } 661 } 662 s = splbio(); 663 664 /* 665 * Place it in the queue of disk activities for this disk. 666 * 667 * XXX Only do disksort() if the current operating mode does not 668 * XXX include tagged queueing. 669 */ 670 disksort_blkno(&cd->buf_queue, bp); 671 672 /* 673 * Tell the device to get going on the transfer if it's 674 * not doing anything, otherwise just wait for completion 675 */ 676 cdstart(cd->sc_periph); 677 678 splx(s); 679 return; 680 681 bad: 682 bp->b_flags |= B_ERROR; 683 done: 684 /* 685 * Correctly set the buf to indicate a completed xfer 686 */ 687 bp->b_resid = bp->b_bcount; 688 biodone(bp); 689 } 690 691 /* 692 * cdstart looks to see if there is a buf waiting for the device 693 * and that the device is not already busy. If both are true, 694 * It deques the buf and creates a scsi command to perform the 695 * transfer in the buf. The transfer request will call scsipi_done 696 * on completion, which will in turn call this routine again 697 * so that the next queued transfer is performed. 698 * The bufs are queued by the strategy routine (cdstrategy) 699 * 700 * This routine is also called after other non-queued requests 701 * have been made of the scsi driver, to ensure that the queue 702 * continues to be drained. 703 * 704 * must be called at the correct (highish) spl level 705 * cdstart() is called at splbio from cdstrategy and scsipi_done 706 */ 707 void 708 cdstart(periph) 709 struct scsipi_periph *periph; 710 { 711 struct cd_softc *cd = (void *)periph->periph_dev; 712 struct buf *bp = 0; 713 struct scsipi_rw_big cmd_big; 714 #if NCD_SCSIBUS > 0 715 struct scsi_rw cmd_small; 716 #endif 717 struct scsipi_generic *cmdp; 718 int flags, nblks, cmdlen, error; 719 720 SC_DEBUG(periph, SCSIPI_DB2, ("cdstart ")); 721 /* 722 * Check if the device has room for another command 723 */ 724 while (periph->periph_active < periph->periph_openings) { 725 /* 726 * there is excess capacity, but a special waits 727 * It'll need the adapter as soon as we clear out of the 728 * way and let it run (user level wait). 729 */ 730 if (periph->periph_flags & PERIPH_WAITING) { 731 periph->periph_flags &= ~PERIPH_WAITING; 732 wakeup((caddr_t)periph); 733 return; 734 } 735 736 /* 737 * See if there is a buf with work for us to do.. 738 */ 739 if ((bp = BUFQ_FIRST(&cd->buf_queue)) == NULL) 740 return; 741 BUFQ_REMOVE(&cd->buf_queue, bp); 742 743 /* 744 * If the device has become invalid, abort all the 745 * reads and writes until all files have been closed and 746 * re-opened 747 */ 748 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 749 bp->b_error = EIO; 750 bp->b_flags |= B_ERROR; 751 bp->b_resid = bp->b_bcount; 752 biodone(bp); 753 continue; 754 } 755 756 /* 757 * We have a buf, now we should make a command. 758 */ 759 760 nblks = howmany(bp->b_bcount, cd->params.blksize); 761 762 #if NCD_SCSIBUS > 0 763 /* 764 * Fill out the scsi command. If the transfer will 765 * fit in a "small" cdb, use it. 766 */ 767 if (((bp->b_rawblkno & 0x1fffff) == bp->b_rawblkno) && 768 ((nblks & 0xff) == nblks) && 769 !(periph->periph_quirks & PQUIRK_ONLYBIG) && 770 scsipi_periph_bustype(periph) == SCSIPI_BUSTYPE_SCSI) { 771 /* 772 * We can fit in a small cdb. 773 */ 774 memset(&cmd_small, 0, sizeof(cmd_small)); 775 cmd_small.opcode = (bp->b_flags & B_READ) ? 776 SCSI_READ_COMMAND : SCSI_WRITE_COMMAND; 777 _lto3b(bp->b_rawblkno, cmd_small.addr); 778 cmd_small.length = nblks & 0xff; 779 cmdlen = sizeof(cmd_small); 780 cmdp = (struct scsipi_generic *)&cmd_small; 781 } else 782 #endif 783 { 784 /* 785 * Need a large cdb. 786 */ 787 memset(&cmd_big, 0, sizeof(cmd_big)); 788 cmd_big.opcode = (bp->b_flags & B_READ) ? 789 READ_BIG : WRITE_BIG; 790 _lto4b(bp->b_rawblkno, cmd_big.addr); 791 _lto2b(nblks, cmd_big.length); 792 cmdlen = sizeof(cmd_big); 793 cmdp = (struct scsipi_generic *)&cmd_big; 794 } 795 796 /* Instrumentation. */ 797 disk_busy(&cd->sc_dk); 798 799 /* 800 * Figure out what flags to use. 801 */ 802 flags = XS_CTL_NOSLEEP|XS_CTL_ASYNC; 803 if (bp->b_flags & B_READ) 804 flags |= XS_CTL_DATA_IN; 805 else 806 flags |= XS_CTL_DATA_OUT; 807 if (bp->b_flags & B_ORDERED) 808 flags |= XS_CTL_ORDERED_TAG; 809 else 810 flags |= XS_CTL_SIMPLE_TAG; 811 812 /* 813 * Call the routine that chats with the adapter. 814 * Note: we cannot sleep as we may be an interrupt 815 */ 816 error = scsipi_command(periph, cmdp, cmdlen, 817 (u_char *)bp->b_data, bp->b_bcount, 818 CDRETRIES, 30000, bp, flags); 819 if (error) { 820 disk_unbusy(&cd->sc_dk, 0); 821 printf("%s: not queued, error %d\n", 822 cd->sc_dev.dv_xname, error); 823 } 824 } 825 } 826 827 void 828 cddone(xs) 829 struct scsipi_xfer *xs; 830 { 831 struct cd_softc *cd = (void *)xs->xs_periph->periph_dev; 832 833 if (xs->bp != NULL) { 834 disk_unbusy(&cd->sc_dk, xs->bp->b_bcount - xs->bp->b_resid); 835 #if NRND > 0 836 rnd_add_uint32(&cd->rnd_source, xs->bp->b_rawblkno); 837 #endif 838 } 839 } 840 841 void 842 cdbounce(bp) 843 struct buf *bp; 844 { 845 struct buf *obp = (struct buf *)bp->b_private; 846 847 if (bp->b_flags & B_ERROR) { 848 /* EEK propagate the error and free the memory */ 849 goto done; 850 } 851 if (obp->b_flags & B_READ) { 852 /* Copy data to the final destination and free the buf. */ 853 memcpy(obp->b_data, bp->b_data+obp->b_rawblkno, 854 obp->b_bcount); 855 } else { 856 /* 857 * XXXX This is a CD-ROM -- READ ONLY -- why do we bother with 858 * XXXX any of this write stuff? 859 */ 860 if (bp->b_flags & B_READ) { 861 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 862 struct buf *nbp; 863 int s; 864 865 /* Read part of RMW complete. */ 866 memcpy(bp->b_data+obp->b_rawblkno, obp->b_data, 867 obp->b_bcount); 868 869 s = splbio(); 870 871 /* We need to alloc a new buf. */ 872 nbp = pool_get(&bufpool, PR_NOWAIT); 873 if (!nbp) { 874 splx(s); 875 /* No buf available. */ 876 bp->b_flags |= B_ERROR; 877 bp->b_error = ENOMEM; 878 bp->b_resid = bp->b_bcount; 879 } 880 881 /* Set up the IOP to the bounce buffer. */ 882 nbp->b_error = 0; 883 nbp->b_proc = bp->b_proc; 884 nbp->b_vp = NULLVP; 885 886 nbp->b_bcount = bp->b_bcount; 887 nbp->b_bufsize = bp->b_bufsize; 888 nbp->b_data = bp->b_data; 889 890 LIST_INIT(&nbp->b_dep); 891 nbp->b_rawblkno = bp->b_rawblkno; 892 893 /* We need to do a read-modify-write operation */ 894 nbp->b_flags = obp->b_flags | B_CALL; 895 nbp->b_iodone = cdbounce; 896 897 /* Put ptr to orig buf in b_private and use new buf */ 898 nbp->b_private = obp; 899 900 /* 901 * Place it in the queue of disk activities for this 902 * disk. 903 * 904 * XXX Only do disksort() if the current operating mode 905 * XXX does not include tagged queueing. 906 */ 907 disksort_blkno(&cd->buf_queue, nbp); 908 909 /* 910 * Tell the device to get going on the transfer if it's 911 * not doing anything, otherwise just wait for 912 * completion 913 */ 914 cdstart(cd->sc_periph); 915 916 splx(s); 917 return; 918 919 } 920 } 921 done: 922 obp->b_flags |= (bp->b_flags&(B_EINTR|B_ERROR)); 923 obp->b_error = bp->b_error; 924 obp->b_resid = bp->b_resid; 925 free(bp->b_data, M_DEVBUF); 926 biodone(obp); 927 } 928 929 int cd_interpret_sense(xs) 930 struct scsipi_xfer *xs; 931 { 932 struct scsipi_periph *periph = xs->xs_periph; 933 struct scsipi_sense_data *sense = &xs->sense.scsi_sense; 934 int retval = EJUSTRETURN; 935 936 /* 937 * If it isn't a extended or extended/deferred error, let 938 * the generic code handle it. 939 */ 940 if ((sense->error_code & SSD_ERRCODE) != 0x70 && 941 (sense->error_code & SSD_ERRCODE) != 0x71) { /* DEFERRED */ 942 return (retval); 943 } 944 945 /* 946 * If we got a "Unit not ready" (SKEY_NOT_READY) and "Logical Unit 947 * Is In The Process of Becoming Ready" (Sense code 0x04,0x01), then 948 * wait a bit for the drive to spin up 949 */ 950 951 if ((sense->flags & SSD_KEY) == SKEY_NOT_READY && 952 sense->add_sense_code == 0x4 && 953 sense->add_sense_code_qual == 0x01) { 954 /* 955 * Sleep for 5 seconds to wait for the drive to spin up 956 */ 957 958 SC_DEBUG(periph, SCSIPI_DB1, ("Waiting 5 sec for CD " 959 "spinup\n")); 960 scsipi_periph_freeze(periph, 1); 961 callout_reset(&periph->periph_callout, 962 5 * hz, scsipi_periph_timed_thaw, periph); 963 retval = ERESTART; 964 } 965 return (retval); 966 } 967 968 void 969 cdminphys(bp) 970 struct buf *bp; 971 { 972 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 973 long max; 974 975 /* 976 * If the device is ancient, we want to make sure that 977 * the transfer fits into a 6-byte cdb. 978 * 979 * XXX Note that the SCSI-I spec says that 256-block transfers 980 * are allowed in a 6-byte read/write, and are specified 981 * by settng the "length" to 0. However, we're conservative 982 * here, allowing only 255-block transfers in case an 983 * ancient device gets confused by length == 0. A length of 0 984 * in a 10-byte read/write actually means 0 blocks. 985 */ 986 if (cd->flags & CDF_ANCIENT) { 987 max = cd->sc_dk.dk_label->d_secsize * 0xff; 988 989 if (bp->b_bcount > max) 990 bp->b_bcount = max; 991 } 992 993 (*cd->sc_periph->periph_channel->chan_adapter->adapt_minphys)(bp); 994 } 995 996 int 997 cdread(dev, uio, ioflag) 998 dev_t dev; 999 struct uio *uio; 1000 int ioflag; 1001 { 1002 1003 return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio)); 1004 } 1005 1006 int 1007 cdwrite(dev, uio, ioflag) 1008 dev_t dev; 1009 struct uio *uio; 1010 int ioflag; 1011 { 1012 1013 return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio)); 1014 } 1015 1016 /* 1017 * conversion between minute-seconde-frame and logical block adress 1018 * adresses format 1019 */ 1020 void 1021 lba2msf (lba, m, s, f) 1022 u_long lba; 1023 u_char *m, *s, *f; 1024 { 1025 u_long tmp; 1026 1027 tmp = lba + CD_BLOCK_OFFSET; /* offset of first logical frame */ 1028 tmp &= 0xffffff; /* negative lbas use only 24 bits */ 1029 *m = tmp / (CD_SECS * CD_FRAMES); 1030 tmp %= (CD_SECS * CD_FRAMES); 1031 *s = tmp / CD_FRAMES; 1032 *f = tmp % CD_FRAMES; 1033 } 1034 1035 u_long 1036 msf2lba (m, s, f) 1037 u_char m, s, f; 1038 { 1039 1040 return ((((m * CD_SECS) + s) * CD_FRAMES + f) - CD_BLOCK_OFFSET); 1041 } 1042 1043 1044 /* 1045 * Perform special action on behalf of the user. 1046 * Knows about the internals of this device 1047 */ 1048 int 1049 cdioctl(dev, cmd, addr, flag, p) 1050 dev_t dev; 1051 u_long cmd; 1052 caddr_t addr; 1053 int flag; 1054 struct proc *p; 1055 { 1056 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 1057 struct scsipi_periph *periph = cd->sc_periph; 1058 int part = CDPART(dev); 1059 int error; 1060 #ifdef __HAVE_OLD_DISKLABEL 1061 struct disklabel newlabel; 1062 #endif 1063 1064 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, ("cdioctl 0x%lx ", cmd)); 1065 1066 /* 1067 * If the device is not valid, some IOCTLs can still be 1068 * handled on the raw partition. Check this here. 1069 */ 1070 if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { 1071 switch (cmd) { 1072 case DIOCWLABEL: 1073 case DIOCLOCK: 1074 case ODIOCEJECT: 1075 case DIOCEJECT: 1076 case SCIOCIDENTIFY: 1077 case OSCIOCIDENTIFY: 1078 case SCIOCCOMMAND: 1079 case SCIOCDEBUG: 1080 case CDIOCGETVOL: 1081 case CDIOCSETVOL: 1082 case CDIOCSETMONO: 1083 case CDIOCSETSTEREO: 1084 case CDIOCSETMUTE: 1085 case CDIOCSETLEFT: 1086 case CDIOCSETRIGHT: 1087 case CDIOCCLOSE: 1088 case CDIOCEJECT: 1089 case CDIOCALLOW: 1090 case CDIOCPREVENT: 1091 case CDIOCSETDEBUG: 1092 case CDIOCCLRDEBUG: 1093 case CDIOCRESET: 1094 case SCIOCRESET: 1095 case CDIOCLOADUNLOAD: 1096 case DVD_AUTH: 1097 case DVD_READ_STRUCT: 1098 if (part == RAW_PART) 1099 break; 1100 /* FALLTHROUGH */ 1101 default: 1102 if ((periph->periph_flags & PERIPH_OPEN) == 0) 1103 return (ENODEV); 1104 else 1105 return (EIO); 1106 } 1107 } 1108 1109 switch (cmd) { 1110 case DIOCGDINFO: 1111 *(struct disklabel *)addr = *(cd->sc_dk.dk_label); 1112 return (0); 1113 #ifdef __HAVE_OLD_DISKLABEL 1114 case ODIOCGDINFO: 1115 newlabel = *(cd->sc_dk.dk_label); 1116 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 1117 return ENOTTY; 1118 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1119 return (0); 1120 #endif 1121 1122 case DIOCGPART: 1123 ((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label; 1124 ((struct partinfo *)addr)->part = 1125 &cd->sc_dk.dk_label->d_partitions[part]; 1126 return (0); 1127 1128 case DIOCWDINFO: 1129 case DIOCSDINFO: 1130 #ifdef __HAVE_OLD_DISKLABEL 1131 case ODIOCWDINFO: 1132 case ODIOCSDINFO: 1133 #endif 1134 { 1135 struct disklabel *lp; 1136 1137 #ifdef __HAVE_OLD_DISKLABEL 1138 if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { 1139 memset(&newlabel, 0, sizeof newlabel); 1140 memcpy(&newlabel, addr, sizeof (struct olddisklabel)); 1141 lp = &newlabel; 1142 } else 1143 #endif 1144 lp = (struct disklabel *)addr; 1145 1146 if ((flag & FWRITE) == 0) 1147 return (EBADF); 1148 1149 if ((error = cdlock(cd)) != 0) 1150 return (error); 1151 cd->flags |= CDF_LABELLING; 1152 1153 error = setdisklabel(cd->sc_dk.dk_label, 1154 lp, /*cd->sc_dk.dk_openmask : */0, 1155 cd->sc_dk.dk_cpulabel); 1156 if (error == 0) { 1157 /* XXX ? */ 1158 } 1159 1160 cd->flags &= ~CDF_LABELLING; 1161 cdunlock(cd); 1162 return (error); 1163 } 1164 1165 case DIOCWLABEL: 1166 return (EBADF); 1167 1168 case DIOCGDEFLABEL: 1169 cdgetdefaultlabel(cd, (struct disklabel *)addr); 1170 return (0); 1171 1172 #ifdef __HAVE_OLD_DISKLABEL 1173 case ODIOCGDEFLABEL: 1174 cdgetdefaultlabel(cd, &newlabel); 1175 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 1176 return ENOTTY; 1177 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1178 return (0); 1179 #endif 1180 1181 case CDIOCPLAYTRACKS: { 1182 struct ioc_play_track *args = (struct ioc_play_track *)addr; 1183 1184 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 1185 return (error); 1186 return (cd_play_tracks(cd, args->start_track, 1187 args->start_index, args->end_track, args->end_index)); 1188 } 1189 case CDIOCPLAYMSF: { 1190 struct ioc_play_msf *args = (struct ioc_play_msf *)addr; 1191 1192 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 1193 return (error); 1194 return (cd_play_msf(cd, args->start_m, args->start_s, 1195 args->start_f, args->end_m, args->end_s, args->end_f)); 1196 } 1197 case CDIOCPLAYBLOCKS: { 1198 struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr; 1199 1200 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 1201 return (error); 1202 return (cd_play(cd, args->blk, args->len)); 1203 } 1204 case CDIOCREADSUBCHANNEL: { 1205 struct ioc_read_subchannel *args = 1206 (struct ioc_read_subchannel *)addr; 1207 struct cd_sub_channel_info data; 1208 int len = args->data_len; 1209 1210 if (len > sizeof(data) || 1211 len < sizeof(struct cd_sub_channel_header)) 1212 return (EINVAL); 1213 error = cd_read_subchannel(cd, args->address_format, 1214 args->data_format, args->track, &data, len, 1215 XS_CTL_DATA_ONSTACK); 1216 if (error) 1217 return (error); 1218 len = min(len, _2btol(data.header.data_len) + 1219 sizeof(struct cd_sub_channel_header)); 1220 return (copyout(&data, args->data, len)); 1221 } 1222 case CDIOREADTOCHEADER: { 1223 struct ioc_toc_header th; 1224 1225 if ((error = cd_read_toc(cd, 0, 0, &th, sizeof(th), 1226 XS_CTL_DATA_ONSTACK, 0)) != 0) 1227 return (error); 1228 if (cd->sc_periph->periph_quirks & PQUIRK_LITTLETOC) 1229 th.len = le16toh(th.len); 1230 else 1231 th.len = be16toh(th.len); 1232 memcpy(addr, &th, sizeof(th)); 1233 return (0); 1234 } 1235 case CDIOREADTOCENTRYS: { 1236 struct cd_toc toc; 1237 struct ioc_read_toc_entry *te = 1238 (struct ioc_read_toc_entry *)addr; 1239 struct ioc_toc_header *th; 1240 struct cd_toc_entry *cte; 1241 int len = te->data_len; 1242 int ntracks; 1243 1244 th = &toc.header; 1245 1246 if (len > sizeof(toc.entries) || 1247 len < sizeof(struct cd_toc_entry)) 1248 return (EINVAL); 1249 error = cd_read_toc(cd, te->address_format, te->starting_track, 1250 &toc, len + sizeof(struct ioc_toc_header), 1251 XS_CTL_DATA_ONSTACK, 0); 1252 if (error) 1253 return (error); 1254 if (te->address_format == CD_LBA_FORMAT) 1255 for (ntracks = 1256 th->ending_track - th->starting_track + 1; 1257 ntracks >= 0; ntracks--) { 1258 cte = &toc.entries[ntracks]; 1259 cte->addr_type = CD_LBA_FORMAT; 1260 if (periph->periph_quirks & PQUIRK_LITTLETOC) 1261 cte->addr.lba = le32toh(cte->addr.lba); 1262 else 1263 cte->addr.lba = be32toh(cte->addr.lba); 1264 } 1265 if (periph->periph_quirks & PQUIRK_LITTLETOC) 1266 th->len = le16toh(th->len); 1267 else 1268 th->len = be16toh(th->len); 1269 len = min(len, th->len - (sizeof(th->starting_track) + 1270 sizeof(th->ending_track))); 1271 return (copyout(toc.entries, te->data, len)); 1272 } 1273 case CDIOREADMSADDR: { 1274 struct cd_toc toc; 1275 int sessno = *(int*)addr; 1276 struct cd_toc_entry *cte; 1277 1278 if (sessno != 0) 1279 return (EINVAL); 1280 1281 error = cd_read_toc(cd, 0, 0, &toc, 1282 sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry), 1283 XS_CTL_DATA_ONSTACK, 1284 0x40 /* control word for "get MS info" */); 1285 1286 if (error) 1287 return (error); 1288 1289 cte = &toc.entries[0]; 1290 if (periph->periph_quirks & PQUIRK_LITTLETOC) { 1291 cte->addr.lba = le32toh(cte->addr.lba); 1292 toc.header.len = le16toh(toc.header.len); 1293 } else { 1294 cte->addr.lba = be32toh(cte->addr.lba); 1295 toc.header.len = be16toh(toc.header.len); 1296 } 1297 1298 *(int*)addr = (toc.header.len >= 10 && cte->track > 1) ? 1299 cte->addr.lba : 0; 1300 return 0; 1301 } 1302 case CDIOCSETPATCH: { 1303 struct ioc_patch *arg = (struct ioc_patch *)addr; 1304 1305 return ((*cd->sc_ops->cdo_setchan)(cd, arg->patch[0], 1306 arg->patch[1], arg->patch[2], arg->patch[3], 0)); 1307 } 1308 case CDIOCGETVOL: { 1309 struct ioc_vol *arg = (struct ioc_vol *)addr; 1310 1311 return ((*cd->sc_ops->cdo_getvol)(cd, arg, 0)); 1312 } 1313 case CDIOCSETVOL: { 1314 struct ioc_vol *arg = (struct ioc_vol *)addr; 1315 1316 return ((*cd->sc_ops->cdo_setvol)(cd, arg, 0)); 1317 } 1318 1319 case CDIOCSETMONO: 1320 return ((*cd->sc_ops->cdo_setchan)(cd, BOTH_CHANNEL, 1321 BOTH_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1322 1323 case CDIOCSETSTEREO: 1324 return ((*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL, 1325 RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1326 1327 case CDIOCSETMUTE: 1328 return ((*cd->sc_ops->cdo_setchan)(cd, MUTE_CHANNEL, 1329 MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1330 1331 case CDIOCSETLEFT: 1332 return ((*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL, 1333 LEFT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1334 1335 case CDIOCSETRIGHT: 1336 return ((*cd->sc_ops->cdo_setchan)(cd, RIGHT_CHANNEL, 1337 RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1338 1339 case CDIOCRESUME: 1340 return (cd_pause(cd, PA_RESUME)); 1341 case CDIOCPAUSE: 1342 return (cd_pause(cd, PA_PAUSE)); 1343 case CDIOCSTART: 1344 return (scsipi_start(periph, SSS_START, 0)); 1345 case CDIOCSTOP: 1346 return (scsipi_start(periph, SSS_STOP, 0)); 1347 case CDIOCCLOSE: 1348 return (scsipi_start(periph, SSS_START|SSS_LOEJ, 1349 XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE)); 1350 case DIOCEJECT: 1351 if (*(int *)addr == 0) { 1352 /* 1353 * Don't force eject: check that we are the only 1354 * partition open. If so, unlock it. 1355 */ 1356 if ((cd->sc_dk.dk_openmask & ~(1 << part)) == 0 && 1357 cd->sc_dk.dk_bopenmask + cd->sc_dk.dk_copenmask == 1358 cd->sc_dk.dk_openmask) { 1359 error = scsipi_prevent(periph, PR_ALLOW, 1360 XS_CTL_IGNORE_NOT_READY); 1361 if (error) 1362 return (error); 1363 } else { 1364 return (EBUSY); 1365 } 1366 } 1367 /* FALLTHROUGH */ 1368 case CDIOCEJECT: /* FALLTHROUGH */ 1369 case ODIOCEJECT: 1370 return (scsipi_start(periph, SSS_STOP|SSS_LOEJ, 0)); 1371 case CDIOCALLOW: 1372 return (scsipi_prevent(periph, PR_ALLOW, 0)); 1373 case CDIOCPREVENT: 1374 return (scsipi_prevent(periph, PR_PREVENT, 0)); 1375 case DIOCLOCK: 1376 return (scsipi_prevent(periph, 1377 (*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0)); 1378 case CDIOCSETDEBUG: 1379 cd->sc_periph->periph_dbflags |= (SCSIPI_DB1 | SCSIPI_DB2); 1380 return (0); 1381 case CDIOCCLRDEBUG: 1382 cd->sc_periph->periph_dbflags &= ~(SCSIPI_DB1 | SCSIPI_DB2); 1383 return (0); 1384 case CDIOCRESET: 1385 case SCIOCRESET: 1386 return (cd_reset(cd)); 1387 case CDIOCLOADUNLOAD: { 1388 struct ioc_load_unload *args = (struct ioc_load_unload *)addr; 1389 1390 return ((*cd->sc_ops->cdo_load_unload)(cd, args->options, 1391 args->slot)); 1392 case DVD_AUTH: 1393 return (dvd_auth(cd, (dvd_authinfo *)addr)); 1394 case DVD_READ_STRUCT: 1395 return (dvd_read_struct(cd, (dvd_struct *)addr)); 1396 } 1397 1398 default: 1399 if (part != RAW_PART) 1400 return (ENOTTY); 1401 return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, p)); 1402 } 1403 1404 #ifdef DIAGNOSTIC 1405 panic("cdioctl: impossible"); 1406 #endif 1407 } 1408 1409 void 1410 cdgetdefaultlabel(cd, lp) 1411 struct cd_softc *cd; 1412 struct disklabel *lp; 1413 { 1414 1415 memset(lp, 0, sizeof(struct disklabel)); 1416 1417 lp->d_secsize = cd->params.blksize; 1418 lp->d_ntracks = 1; 1419 lp->d_nsectors = 100; 1420 lp->d_ncylinders = (cd->params.disksize / 100) + 1; 1421 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1422 1423 switch (scsipi_periph_bustype(cd->sc_periph)) { 1424 #if NCD_SCSIBUS > 0 1425 case SCSIPI_BUSTYPE_SCSI: 1426 lp->d_type = DTYPE_SCSI; 1427 break; 1428 #endif 1429 #if NCD_ATAPIBUS > 0 1430 case SCSIPI_BUSTYPE_ATAPI: 1431 lp->d_type = DTYPE_ATAPI; 1432 break; 1433 #endif 1434 } 1435 strncpy(lp->d_typename, cd->name, 16); 1436 strncpy(lp->d_packname, "fictitious", 16); 1437 lp->d_secperunit = cd->params.disksize; 1438 lp->d_rpm = 300; 1439 lp->d_interleave = 1; 1440 lp->d_flags = D_REMOVABLE; 1441 1442 lp->d_partitions[0].p_offset = 0; 1443 lp->d_partitions[0].p_size = 1444 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1445 lp->d_partitions[0].p_fstype = FS_ISO9660; 1446 lp->d_partitions[RAW_PART].p_offset = 0; 1447 lp->d_partitions[RAW_PART].p_size = 1448 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1449 lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660; 1450 lp->d_npartitions = RAW_PART + 1; 1451 1452 lp->d_magic = DISKMAGIC; 1453 lp->d_magic2 = DISKMAGIC; 1454 lp->d_checksum = dkcksum(lp); 1455 } 1456 1457 /* 1458 * Load the label information on the named device 1459 * Actually fabricate a disklabel 1460 * 1461 * EVENTUALLY take information about different 1462 * data tracks from the TOC and put it in the disklabel 1463 */ 1464 void 1465 cdgetdisklabel(cd) 1466 struct cd_softc *cd; 1467 { 1468 struct disklabel *lp = cd->sc_dk.dk_label; 1469 char *errstring; 1470 1471 memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1472 1473 cdgetdefaultlabel(cd, lp); 1474 1475 /* 1476 * Call the generic disklabel extraction routine 1477 */ 1478 errstring = readdisklabel(MAKECDDEV(0, cd->sc_dev.dv_unit, RAW_PART), 1479 cdstrategy, lp, cd->sc_dk.dk_cpulabel); 1480 if (errstring) { 1481 printf("%s: %s\n", cd->sc_dev.dv_xname, errstring); 1482 goto error; 1483 } 1484 return; 1485 1486 error: 1487 /* Reset to default label -- should print a warning */ 1488 memset(cd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1489 1490 cdgetdefaultlabel(cd, lp); 1491 } 1492 1493 /* 1494 * Find out from the device what it's capacity is 1495 */ 1496 u_long 1497 cd_size(cd, flags) 1498 struct cd_softc *cd; 1499 int flags; 1500 { 1501 struct scsipi_read_cd_cap_data rdcap; 1502 struct scsipi_read_cd_capacity scsipi_cmd; 1503 int blksize; 1504 u_long size; 1505 1506 if (cd->sc_periph->periph_quirks & PQUIRK_NOCAPACITY) { 1507 /* 1508 * the drive doesn't support the READ_CD_CAPACITY command 1509 * use a fake size 1510 */ 1511 cd->params.blksize = 2048; 1512 cd->params.disksize = 400000; 1513 return (400000); 1514 } 1515 1516 /* 1517 * make up a scsi command and ask the scsi driver to do 1518 * it for you. 1519 */ 1520 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1521 scsipi_cmd.opcode = READ_CD_CAPACITY; 1522 1523 /* 1524 * If the command works, interpret the result as a 4 byte 1525 * number of blocks and a blocksize 1526 */ 1527 if (scsipi_command(cd->sc_periph, 1528 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1529 (u_char *)&rdcap, sizeof(rdcap), CDRETRIES, 30000, NULL, 1530 flags | XS_CTL_DATA_IN | XS_CTL_DATA_IN) != 0) 1531 return (0); 1532 1533 blksize = _4btol(rdcap.length); 1534 if ((blksize < 512) || ((blksize & 511) != 0)) 1535 blksize = 2048; /* some drives lie ! */ 1536 cd->params.blksize = blksize; 1537 1538 size = _4btol(rdcap.addr) + 1; 1539 if (size < 100) 1540 size = 400000; /* ditto */ 1541 cd->params.disksize = size; 1542 1543 SC_DEBUG(cd->sc_periph, SCSIPI_DB2, 1544 ("cd_size: %d %ld\n", blksize, size)); 1545 return (size); 1546 } 1547 1548 /* 1549 * Get scsi driver to send a "start playing" command 1550 */ 1551 int 1552 cd_play(cd, blkno, nblks) 1553 struct cd_softc *cd; 1554 int blkno, nblks; 1555 { 1556 struct scsipi_play scsipi_cmd; 1557 1558 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1559 scsipi_cmd.opcode = PLAY; 1560 _lto4b(blkno, scsipi_cmd.blk_addr); 1561 _lto2b(nblks, scsipi_cmd.xfer_len); 1562 return (scsipi_command(cd->sc_periph, 1563 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1564 0, 0, CDRETRIES, 30000, NULL, 0)); 1565 } 1566 1567 /* 1568 * Get scsi driver to send a "start playing" command 1569 */ 1570 int 1571 cd_play_tracks(cd, strack, sindex, etrack, eindex) 1572 struct cd_softc *cd; 1573 int strack, sindex, etrack, eindex; 1574 { 1575 struct cd_toc toc; 1576 int error; 1577 1578 if (!etrack) 1579 return (EIO); 1580 if (strack > etrack) 1581 return (EINVAL); 1582 1583 if ((error = cd_load_toc(cd, &toc, XS_CTL_DATA_ONSTACK)) != 0) 1584 return (error); 1585 1586 if (++etrack > (toc.header.ending_track+1)) 1587 etrack = toc.header.ending_track+1; 1588 1589 strack -= toc.header.starting_track; 1590 etrack -= toc.header.starting_track; 1591 if (strack < 0) 1592 return (EINVAL); 1593 1594 return (cd_play_msf(cd, toc.entries[strack].addr.msf.minute, 1595 toc.entries[strack].addr.msf.second, 1596 toc.entries[strack].addr.msf.frame, 1597 toc.entries[etrack].addr.msf.minute, 1598 toc.entries[etrack].addr.msf.second, 1599 toc.entries[etrack].addr.msf.frame)); 1600 } 1601 1602 /* 1603 * Get scsi driver to send a "play msf" command 1604 */ 1605 int 1606 cd_play_msf(cd, startm, starts, startf, endm, ends, endf) 1607 struct cd_softc *cd; 1608 int startm, starts, startf, endm, ends, endf; 1609 { 1610 struct scsipi_play_msf scsipi_cmd; 1611 1612 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1613 scsipi_cmd.opcode = PLAY_MSF; 1614 scsipi_cmd.start_m = startm; 1615 scsipi_cmd.start_s = starts; 1616 scsipi_cmd.start_f = startf; 1617 scsipi_cmd.end_m = endm; 1618 scsipi_cmd.end_s = ends; 1619 scsipi_cmd.end_f = endf; 1620 return (scsipi_command(cd->sc_periph, 1621 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1622 0, 0, CDRETRIES, 30000, NULL, 0)); 1623 } 1624 1625 /* 1626 * Get scsi driver to send a "start up" command 1627 */ 1628 int 1629 cd_pause(cd, go) 1630 struct cd_softc *cd; 1631 int go; 1632 { 1633 struct scsipi_pause scsipi_cmd; 1634 1635 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1636 scsipi_cmd.opcode = PAUSE; 1637 scsipi_cmd.resume = go & 0xff; 1638 return (scsipi_command(cd->sc_periph, 1639 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1640 0, 0, CDRETRIES, 30000, NULL, 0)); 1641 } 1642 1643 /* 1644 * Get scsi driver to send a "RESET" command 1645 */ 1646 int 1647 cd_reset(cd) 1648 struct cd_softc *cd; 1649 { 1650 1651 return (scsipi_command(cd->sc_periph, 0, 0, 0, 0, 1652 CDRETRIES, 30000, NULL, XS_CTL_RESET)); 1653 } 1654 1655 /* 1656 * Read subchannel 1657 */ 1658 int 1659 cd_read_subchannel(cd, mode, format, track, data, len, flags) 1660 struct cd_softc *cd; 1661 int mode, format, track, len; 1662 struct cd_sub_channel_info *data; 1663 int flags; 1664 { 1665 struct scsipi_read_subchannel scsipi_cmd; 1666 1667 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1668 scsipi_cmd.opcode = READ_SUBCHANNEL; 1669 if (mode == CD_MSF_FORMAT) 1670 scsipi_cmd.byte2 |= CD_MSF; 1671 scsipi_cmd.byte3 = SRS_SUBQ; 1672 scsipi_cmd.subchan_format = format; 1673 scsipi_cmd.track = track; 1674 _lto2b(len, scsipi_cmd.data_len); 1675 return (scsipi_command(cd->sc_periph, 1676 (struct scsipi_generic *)&scsipi_cmd, 1677 sizeof(struct scsipi_read_subchannel), (u_char *)data, len, 1678 CDRETRIES, 30000, NULL, flags | XS_CTL_DATA_IN | XS_CTL_SILENT)); 1679 } 1680 1681 /* 1682 * Read table of contents 1683 */ 1684 int 1685 cd_read_toc(cd, mode, start, data, len, flags, control) 1686 struct cd_softc *cd; 1687 int mode, start, len, control; 1688 void *data; 1689 int flags; 1690 { 1691 struct scsipi_read_toc scsipi_cmd; 1692 int ntoc; 1693 1694 memset(&scsipi_cmd, 0, sizeof(scsipi_cmd)); 1695 #if 0 1696 if (len != sizeof(struct ioc_toc_header)) 1697 ntoc = ((len) - sizeof(struct ioc_toc_header)) / 1698 sizeof(struct cd_toc_entry); 1699 else 1700 #endif 1701 ntoc = len; 1702 scsipi_cmd.opcode = READ_TOC; 1703 if (mode == CD_MSF_FORMAT) 1704 scsipi_cmd.byte2 |= CD_MSF; 1705 scsipi_cmd.from_track = start; 1706 _lto2b(ntoc, scsipi_cmd.data_len); 1707 scsipi_cmd.control = control; 1708 return (scsipi_command(cd->sc_periph, 1709 (struct scsipi_generic *)&scsipi_cmd, 1710 sizeof(struct scsipi_read_toc), (u_char *)data, len, CDRETRIES, 1711 30000, NULL, flags | XS_CTL_DATA_IN)); 1712 } 1713 1714 int 1715 cd_load_toc(cd, toc, flags) 1716 struct cd_softc *cd; 1717 struct cd_toc *toc; 1718 int flags; 1719 { 1720 int ntracks, len, error; 1721 1722 if ((error = cd_read_toc(cd, 0, 0, toc, sizeof(toc->header), 1723 flags, 0)) != 0) 1724 return (error); 1725 1726 ntracks = toc->header.ending_track - toc->header.starting_track + 1; 1727 len = (ntracks + 1) * sizeof(struct cd_toc_entry) + 1728 sizeof(toc->header); 1729 if ((error = cd_read_toc(cd, CD_MSF_FORMAT, 0, toc, len, 1730 flags, 0)) != 0) 1731 return (error); 1732 return (0); 1733 } 1734 1735 /* 1736 * Get the scsi driver to send a full inquiry to the device and use the 1737 * results to fill out the disk parameter structure. 1738 */ 1739 int 1740 cd_get_parms(cd, flags) 1741 struct cd_softc *cd; 1742 int flags; 1743 { 1744 1745 /* 1746 * give a number of sectors so that sec * trks * cyls 1747 * is <= disk_size 1748 */ 1749 if (cd_size(cd, flags) == 0) 1750 return (ENXIO); 1751 return (0); 1752 } 1753 1754 int 1755 cdsize(dev) 1756 dev_t dev; 1757 { 1758 1759 /* CD-ROMs are read-only. */ 1760 return (-1); 1761 } 1762 1763 int 1764 cddump(dev, blkno, va, size) 1765 dev_t dev; 1766 daddr_t blkno; 1767 caddr_t va; 1768 size_t size; 1769 { 1770 1771 /* Not implemented. */ 1772 return (ENXIO); 1773 } 1774 1775 #define dvd_copy_key(dst, src) memcpy((dst), (src), sizeof(dvd_key)) 1776 #define dvd_copy_challenge(dst, src) memcpy((dst), (src), sizeof(dvd_challenge)) 1777 1778 int 1779 dvd_auth(cd, a) 1780 struct cd_softc *cd; 1781 dvd_authinfo *a; 1782 { 1783 struct scsipi_generic cmd; 1784 u_int8_t buf[20]; 1785 int error; 1786 1787 memset(cmd.bytes, 0, 15); 1788 memset(buf, 0, sizeof(buf)); 1789 1790 switch (a->type) { 1791 case DVD_LU_SEND_AGID: 1792 cmd.opcode = GPCMD_REPORT_KEY; 1793 cmd.bytes[8] = 8; 1794 cmd.bytes[9] = 0 | (0 << 6); 1795 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 8, 1796 CDRETRIES, 30000, NULL, 1797 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1798 if (error) 1799 return (error); 1800 a->lsa.agid = buf[7] >> 6; 1801 return (0); 1802 1803 case DVD_LU_SEND_CHALLENGE: 1804 cmd.opcode = GPCMD_REPORT_KEY; 1805 cmd.bytes[8] = 16; 1806 cmd.bytes[9] = 1 | (a->lsc.agid << 6); 1807 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 16, 1808 CDRETRIES, 30000, NULL, 1809 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1810 if (error) 1811 return (error); 1812 dvd_copy_challenge(a->lsc.chal, &buf[4]); 1813 return (0); 1814 1815 case DVD_LU_SEND_KEY1: 1816 cmd.opcode = GPCMD_REPORT_KEY; 1817 cmd.bytes[8] = 12; 1818 cmd.bytes[9] = 2 | (a->lsk.agid << 6); 1819 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 12, 1820 CDRETRIES, 30000, NULL, 1821 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1822 if (error) 1823 return (error); 1824 dvd_copy_key(a->lsk.key, &buf[4]); 1825 return (0); 1826 1827 case DVD_LU_SEND_TITLE_KEY: 1828 cmd.opcode = GPCMD_REPORT_KEY; 1829 _lto4b(a->lstk.lba, &cmd.bytes[1]); 1830 cmd.bytes[8] = 12; 1831 cmd.bytes[9] = 4 | (a->lstk.agid << 6); 1832 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 12, 1833 CDRETRIES, 30000, NULL, 1834 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1835 if (error) 1836 return (error); 1837 a->lstk.cpm = (buf[4] >> 7) & 1; 1838 a->lstk.cp_sec = (buf[4] >> 6) & 1; 1839 a->lstk.cgms = (buf[4] >> 4) & 3; 1840 dvd_copy_key(a->lstk.title_key, &buf[5]); 1841 return (0); 1842 1843 case DVD_LU_SEND_ASF: 1844 cmd.opcode = GPCMD_REPORT_KEY; 1845 cmd.bytes[8] = 8; 1846 cmd.bytes[9] = 5 | (a->lsasf.agid << 6); 1847 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 8, 1848 CDRETRIES, 30000, NULL, 1849 XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1850 if (error) 1851 return (error); 1852 a->lsasf.asf = buf[7] & 1; 1853 return (0); 1854 1855 case DVD_HOST_SEND_CHALLENGE: 1856 cmd.opcode = GPCMD_SEND_KEY; 1857 cmd.bytes[8] = 16; 1858 cmd.bytes[9] = 1 | (a->hsc.agid << 6); 1859 buf[1] = 14; 1860 dvd_copy_challenge(&buf[4], a->hsc.chal); 1861 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 16, 1862 CDRETRIES, 30000, NULL, 1863 XS_CTL_DATA_OUT|XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1864 if (error) 1865 return (error); 1866 a->type = DVD_LU_SEND_KEY1; 1867 return (0); 1868 1869 case DVD_HOST_SEND_KEY2: 1870 cmd.opcode = GPCMD_SEND_KEY; 1871 cmd.bytes[8] = 12; 1872 cmd.bytes[9] = 3 | (a->hsk.agid << 6); 1873 buf[1] = 10; 1874 dvd_copy_key(&buf[4], a->hsk.key); 1875 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 12, 1876 CDRETRIES, 30000, NULL, 1877 XS_CTL_DATA_OUT|XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1878 if (error) { 1879 a->type = DVD_AUTH_FAILURE; 1880 return (error); 1881 } 1882 a->type = DVD_AUTH_ESTABLISHED; 1883 return (0); 1884 1885 case DVD_INVALIDATE_AGID: 1886 cmd.opcode = GPCMD_REPORT_KEY; 1887 cmd.bytes[9] = 0x3f | (a->lsa.agid << 6); 1888 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, 16, 1889 CDRETRIES, 30000, NULL, 0); 1890 if (error) 1891 return (error); 1892 return (0); 1893 1894 default: 1895 return (ENOTTY); 1896 } 1897 } 1898 1899 int 1900 dvd_read_physical(cd, s) 1901 struct cd_softc *cd; 1902 dvd_struct *s; 1903 { 1904 struct scsipi_generic cmd; 1905 u_int8_t buf[4 + 4 * 20], *bufp; 1906 int error; 1907 struct dvd_layer *layer; 1908 int i; 1909 1910 memset(cmd.bytes, 0, 15); 1911 memset(buf, 0, sizeof(buf)); 1912 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1913 cmd.bytes[6] = s->type; 1914 _lto2b(sizeof(buf), &cmd.bytes[7]); 1915 1916 cmd.bytes[5] = s->physical.layer_num; 1917 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, sizeof(buf), 1918 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1919 if (error) 1920 return (error); 1921 for (i = 0, bufp = &buf[4], layer = &s->physical.layer[0]; i < 4; 1922 i++, bufp += 20, layer++) { 1923 memset(layer, 0, sizeof(*layer)); 1924 layer->book_version = bufp[0] & 0xf; 1925 layer->book_type = bufp[0] >> 4; 1926 layer->min_rate = bufp[1] & 0xf; 1927 layer->disc_size = bufp[1] >> 4; 1928 layer->layer_type = bufp[2] & 0xf; 1929 layer->track_path = (bufp[2] >> 4) & 1; 1930 layer->nlayers = (bufp[2] >> 5) & 3; 1931 layer->track_density = bufp[3] & 0xf; 1932 layer->linear_density = bufp[3] >> 4; 1933 layer->start_sector = _4btol(&bufp[4]); 1934 layer->end_sector = _4btol(&bufp[8]); 1935 layer->end_sector_l0 = _4btol(&bufp[12]); 1936 layer->bca = bufp[16] >> 7; 1937 } 1938 return (0); 1939 } 1940 1941 int 1942 dvd_read_copyright(cd, s) 1943 struct cd_softc *cd; 1944 dvd_struct *s; 1945 { 1946 struct scsipi_generic cmd; 1947 u_int8_t buf[8]; 1948 int error; 1949 1950 memset(cmd.bytes, 0, 15); 1951 memset(buf, 0, sizeof(buf)); 1952 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1953 cmd.bytes[6] = s->type; 1954 _lto2b(sizeof(buf), &cmd.bytes[7]); 1955 1956 cmd.bytes[5] = s->copyright.layer_num; 1957 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, sizeof(buf), 1958 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1959 if (error) 1960 return (error); 1961 s->copyright.cpst = buf[4]; 1962 s->copyright.rmi = buf[5]; 1963 return (0); 1964 } 1965 1966 int 1967 dvd_read_disckey(cd, s) 1968 struct cd_softc *cd; 1969 dvd_struct *s; 1970 { 1971 struct scsipi_generic cmd; 1972 u_int8_t buf[4 + 2048]; 1973 int error; 1974 1975 memset(cmd.bytes, 0, 15); 1976 memset(buf, 0, sizeof(buf)); 1977 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1978 cmd.bytes[6] = s->type; 1979 _lto2b(sizeof(buf), &cmd.bytes[7]); 1980 1981 cmd.bytes[9] = s->disckey.agid << 6; 1982 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, sizeof(buf), 1983 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 1984 if (error) 1985 return (error); 1986 memcpy(s->disckey.value, &buf[4], 2048); 1987 return (0); 1988 } 1989 1990 int 1991 dvd_read_bca(cd, s) 1992 struct cd_softc *cd; 1993 dvd_struct *s; 1994 { 1995 struct scsipi_generic cmd; 1996 u_int8_t buf[4 + 188]; 1997 int error; 1998 1999 memset(cmd.bytes, 0, 15); 2000 memset(buf, 0, sizeof(buf)); 2001 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2002 cmd.bytes[6] = s->type; 2003 _lto2b(sizeof(buf), &cmd.bytes[7]); 2004 2005 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, sizeof(buf), 2006 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2007 if (error) 2008 return (error); 2009 s->bca.len = _2btol(&buf[0]); 2010 if (s->bca.len < 12 || s->bca.len > 188) 2011 return (EIO); 2012 memcpy(s->bca.value, &buf[4], s->bca.len); 2013 return (0); 2014 } 2015 2016 int 2017 dvd_read_manufact(cd, s) 2018 struct cd_softc *cd; 2019 dvd_struct *s; 2020 { 2021 struct scsipi_generic cmd; 2022 u_int8_t buf[4 + 2048]; 2023 int error; 2024 2025 memset(cmd.bytes, 0, 15); 2026 memset(buf, 0, sizeof(buf)); 2027 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 2028 cmd.bytes[6] = s->type; 2029 _lto2b(sizeof(buf), &cmd.bytes[7]); 2030 2031 error = scsipi_command(cd->sc_periph, &cmd, 12, buf, sizeof(buf), 2032 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_DATA_ONSTACK); 2033 if (error) 2034 return (error); 2035 s->manufact.len = _2btol(&buf[0]); 2036 if (s->manufact.len < 0 || s->manufact.len > 2048) 2037 return (EIO); 2038 memcpy(s->manufact.value, &buf[4], s->manufact.len); 2039 return (0); 2040 } 2041 2042 int 2043 dvd_read_struct(cd, s) 2044 struct cd_softc *cd; 2045 dvd_struct *s; 2046 { 2047 2048 switch (s->type) { 2049 case DVD_STRUCT_PHYSICAL: 2050 return (dvd_read_physical(cd, s)); 2051 case DVD_STRUCT_COPYRIGHT: 2052 return (dvd_read_copyright(cd, s)); 2053 case DVD_STRUCT_DISCKEY: 2054 return (dvd_read_disckey(cd, s)); 2055 case DVD_STRUCT_BCA: 2056 return (dvd_read_bca(cd, s)); 2057 case DVD_STRUCT_MANUFACT: 2058 return (dvd_read_manufact(cd, s)); 2059 default: 2060 return (EINVAL); 2061 } 2062 } 2063