1 /* $NetBSD: cd.c,v 1.134 1999/11/03 20:50:18 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 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 CDOUTSTANDING 4 93 94 #define CDUNIT(z) DISKUNIT(z) 95 #define CDPART(z) DISKPART(z) 96 #define CDMINOR(unit, part) DISKMINOR(unit, part) 97 #define MAKECDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 98 99 #define MAXTRACK 99 100 #define CD_BLOCK_OFFSET 150 101 #define CD_FRAMES 75 102 #define CD_SECS 60 103 104 struct cd_toc { 105 struct ioc_toc_header header; 106 struct cd_toc_entry entries[MAXTRACK+1]; /* One extra for the */ 107 /* leadout */ 108 }; 109 110 int cdlock __P((struct cd_softc *)); 111 void cdunlock __P((struct cd_softc *)); 112 void cdstart __P((void *)); 113 void cdminphys __P((struct buf *)); 114 void cdgetdefaultlabel __P((struct cd_softc *, struct disklabel *)); 115 void cdgetdisklabel __P((struct cd_softc *)); 116 void cddone __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)); 127 int cd_read_toc __P((struct cd_softc *, int, int, void *, int, int)); 128 int cd_get_parms __P((struct cd_softc *, int)); 129 int cd_load_toc __P((struct cd_softc *, struct cd_toc *)); 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 struct scsipi_device cd_switch = { 143 NULL, /* use default error handler */ 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, sc_link, ops) 155 struct device *parent; 156 struct cd_softc *cd; 157 struct scsipi_link *sc_link; 158 const struct cd_ops *ops; 159 { 160 SC_DEBUG(sc_link, SDEV_DB2, ("cdattach: ")); 161 162 /* 163 * Store information needed to contact our base driver 164 */ 165 cd->sc_link = sc_link; 166 cd->sc_ops = ops; 167 sc_link->device = &cd_switch; 168 sc_link->device_softc = cd; 169 if (sc_link->openings > CDOUTSTANDING) 170 sc_link->openings = CDOUTSTANDING; 171 172 /* 173 * Initialize and attach the disk structure. 174 */ 175 cd->sc_dk.dk_driver = &cddkdriver; 176 cd->sc_dk.dk_name = cd->sc_dev.dv_xname; 177 disk_attach(&cd->sc_dk); 178 179 #if !defined(__i386__) && !defined(__vax__) 180 dk_establish(&cd->sc_dk, &cd->sc_dev); /* XXX */ 181 #endif 182 183 printf("\n"); 184 185 #if NRND > 0 186 rnd_attach_source(&cd->rnd_source, cd->sc_dev.dv_xname, 187 RND_TYPE_DISK, 0); 188 #endif 189 } 190 191 int 192 cdactivate(self, act) 193 struct device *self; 194 enum devact act; 195 { 196 int rv = 0; 197 198 switch (act) { 199 case DVACT_ACTIVATE: 200 rv = EOPNOTSUPP; 201 break; 202 203 case DVACT_DEACTIVATE: 204 /* 205 * Nothing to do; we key off the device's DVF_ACTIVE. 206 */ 207 break; 208 } 209 return (rv); 210 } 211 212 int 213 cddetach(self, flags) 214 struct device *self; 215 int flags; 216 { 217 struct cd_softc *cd = (struct cd_softc *) self; 218 struct buf *bp; 219 int s, bmaj, cmaj, mn; 220 221 /* locate the major number */ 222 for (bmaj = 0; bmaj <= nblkdev; bmaj++) 223 if (bdevsw[bmaj].d_open == cdopen) 224 break; 225 for (cmaj = 0; cmaj <= nchrdev; cmaj++) 226 if (cdevsw[cmaj].d_open == cdopen) 227 break; 228 229 s = splbio(); 230 231 /* Kill off any queued buffers. */ 232 while ((bp = cd->buf_queue.b_actf) != NULL) { 233 cd->buf_queue.b_actf = bp->b_actf; 234 bp->b_error = EIO; 235 bp->b_flags |= B_ERROR; 236 bp->b_resid = bp->b_bcount; 237 biodone(bp); 238 } 239 240 /* Kill off any pending commands. */ 241 scsipi_kill_pending(cd->sc_link); 242 243 splx(s); 244 245 /* Nuke the the vnodes for any open instances */ 246 mn = CDMINOR(self->dv_unit, 0); 247 vdevgone(bmaj, mn, mn + (MAXPARTITIONS - 1), VBLK); 248 vdevgone(cmaj, mn, mn + (MAXPARTITIONS - 1), VCHR); 249 250 /* Detach from the disk list. */ 251 disk_detach(&cd->sc_dk); 252 253 #if 0 254 /* Get rid of the shutdown hook. */ 255 if (cd->sc_sdhook != NULL) 256 shutdownhook_disestablish(cd->sc_sdhook); 257 #endif 258 259 #if NRND > 0 260 /* Unhook the entropy source. */ 261 rnd_detach_source(&cd->rnd_source); 262 #endif 263 264 return (0); 265 } 266 267 /* 268 * Wait interruptibly for an exclusive lock. 269 * 270 * XXX 271 * Several drivers do this; it should be abstracted and made MP-safe. 272 */ 273 int 274 cdlock(cd) 275 struct cd_softc *cd; 276 { 277 int error; 278 279 while ((cd->flags & CDF_LOCKED) != 0) { 280 cd->flags |= CDF_WANTED; 281 if ((error = tsleep(cd, PRIBIO | PCATCH, "cdlck", 0)) != 0) 282 return (error); 283 } 284 cd->flags |= CDF_LOCKED; 285 return (0); 286 } 287 288 /* 289 * Unlock and wake up any waiters. 290 */ 291 void 292 cdunlock(cd) 293 struct cd_softc *cd; 294 { 295 296 cd->flags &= ~CDF_LOCKED; 297 if ((cd->flags & CDF_WANTED) != 0) { 298 cd->flags &= ~CDF_WANTED; 299 wakeup(cd); 300 } 301 } 302 303 /* 304 * open the device. Make sure the partition info is a up-to-date as can be. 305 */ 306 int 307 cdopen(dev, flag, fmt, p) 308 dev_t dev; 309 int flag, fmt; 310 struct proc *p; 311 { 312 struct cd_softc *cd; 313 struct scsipi_link *sc_link; 314 int unit, part; 315 int error; 316 317 unit = CDUNIT(dev); 318 if (unit >= cd_cd.cd_ndevs) 319 return (ENXIO); 320 cd = cd_cd.cd_devs[unit]; 321 if (cd == NULL) 322 return (ENXIO); 323 324 sc_link = cd->sc_link; 325 part = CDPART(dev); 326 327 SC_DEBUG(sc_link, SDEV_DB1, 328 ("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit, 329 cd_cd.cd_ndevs, CDPART(dev))); 330 331 /* 332 * If this is the first open of this device, add a reference 333 * to the adapter. 334 */ 335 if (cd->sc_dk.dk_openmask == 0 && 336 (error = scsipi_adapter_addref(sc_link)) != 0) 337 return (error); 338 339 if ((error = cdlock(cd)) != 0) 340 goto bad4; 341 342 if ((sc_link->flags & SDEV_OPEN) != 0) { 343 /* 344 * If any partition is open, but the disk has been invalidated, 345 * disallow further opens. 346 */ 347 if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0 && 348 (part != RAW_PART || fmt != S_IFCHR )) { 349 error = EIO; 350 goto bad3; 351 } 352 } else { 353 /* Check that it is still responding and ok. */ 354 error = scsipi_test_unit_ready(sc_link, 355 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 356 XS_CTL_IGNORE_NOT_READY); 357 SC_DEBUG(sc_link, SDEV_DB1, 358 ("cdopen: scsipi_test_unit_ready, error=%d\n", error)); 359 if (error) 360 goto bad3; 361 362 /* 363 * Start the pack spinning if necessary. Always allow the 364 * raw parition to be opened, for raw IOCTLs. Data transfers 365 * will check for SDEV_MEDIA_LOADED. 366 */ 367 error = scsipi_start(sc_link, SSS_START, 368 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 369 XS_CTL_SILENT); 370 SC_DEBUG(sc_link, SDEV_DB1, 371 ("cdopen: scsipi_start, error=%d\n", error)); 372 if (error) { 373 if (part != RAW_PART || fmt != S_IFCHR) 374 goto bad3; 375 else 376 goto out; 377 } 378 379 sc_link->flags |= SDEV_OPEN; 380 381 /* Lock the pack in. */ 382 error = scsipi_prevent(sc_link, PR_PREVENT, 383 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 384 SC_DEBUG(sc_link, SDEV_DB1, 385 ("cdopen: scsipi_prevent, error=%d\n", error)); 386 if (error) 387 goto bad; 388 389 if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 390 sc_link->flags |= SDEV_MEDIA_LOADED; 391 392 /* Load the physical device parameters. */ 393 if (cd_get_parms(cd, 0) != 0) { 394 error = ENXIO; 395 goto bad2; 396 } 397 SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded ")); 398 399 /* Fabricate a disk label. */ 400 cdgetdisklabel(cd); 401 SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel fabricated ")); 402 } 403 } 404 405 /* Check that the partition exists. */ 406 if (part != RAW_PART && 407 (part >= cd->sc_dk.dk_label->d_npartitions || 408 cd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 409 error = ENXIO; 410 goto bad; 411 } 412 413 out: /* Insure only one open at a time. */ 414 switch (fmt) { 415 case S_IFCHR: 416 cd->sc_dk.dk_copenmask |= (1 << part); 417 break; 418 case S_IFBLK: 419 cd->sc_dk.dk_bopenmask |= (1 << part); 420 break; 421 } 422 cd->sc_dk.dk_openmask = 423 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 424 425 SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n")); 426 cdunlock(cd); 427 return (0); 428 429 bad2: 430 sc_link->flags &= ~SDEV_MEDIA_LOADED; 431 432 bad: 433 if (cd->sc_dk.dk_openmask == 0) { 434 scsipi_prevent(sc_link, PR_ALLOW, 435 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE); 436 sc_link->flags &= ~SDEV_OPEN; 437 } 438 439 bad3: 440 cdunlock(cd); 441 bad4: 442 if (cd->sc_dk.dk_openmask == 0) 443 scsipi_adapter_delref(sc_link); 444 return (error); 445 } 446 447 /* 448 * close the device.. only called if we are the LAST 449 * occurence of an open device 450 */ 451 int 452 cdclose(dev, flag, fmt, p) 453 dev_t dev; 454 int flag, fmt; 455 struct proc *p; 456 { 457 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 458 int part = CDPART(dev); 459 int error; 460 461 if ((error = cdlock(cd)) != 0) 462 return (error); 463 464 switch (fmt) { 465 case S_IFCHR: 466 cd->sc_dk.dk_copenmask &= ~(1 << part); 467 break; 468 case S_IFBLK: 469 cd->sc_dk.dk_bopenmask &= ~(1 << part); 470 break; 471 } 472 cd->sc_dk.dk_openmask = 473 cd->sc_dk.dk_copenmask | cd->sc_dk.dk_bopenmask; 474 475 if (cd->sc_dk.dk_openmask == 0) { 476 scsipi_wait_drain(cd->sc_link); 477 478 scsipi_prevent(cd->sc_link, PR_ALLOW, 479 XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | 480 XS_CTL_IGNORE_NOT_READY); 481 cd->sc_link->flags &= ~SDEV_OPEN; 482 483 scsipi_wait_drain(cd->sc_link); 484 485 scsipi_adapter_delref(cd->sc_link); 486 } 487 488 cdunlock(cd); 489 return (0); 490 } 491 492 /* 493 * Actually translate the requested transfer into one the physical driver can 494 * understand. The transfer is described by a buf and will include only one 495 * physical transfer. 496 */ 497 void 498 cdstrategy(bp) 499 struct buf *bp; 500 { 501 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 502 int opri; 503 504 SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdstrategy ")); 505 SC_DEBUG(cd->sc_link, SDEV_DB1, 506 ("%ld bytes @ blk %d\n", bp->b_bcount, bp->b_blkno)); 507 /* 508 * If the device has been made invalid, error out 509 * maybe the media changed 510 */ 511 if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 512 if (cd->sc_link->flags & SDEV_OPEN) 513 bp->b_error = EIO; 514 else 515 bp->b_error = ENODEV; 516 goto bad; 517 } 518 /* 519 * The transfer must be a whole number of blocks, offset must not 520 * be negative. 521 */ 522 if ((bp->b_bcount % cd->sc_dk.dk_label->d_secsize) != 0 || 523 bp->b_blkno < 0 ) { 524 bp->b_error = EINVAL; 525 goto bad; 526 } 527 /* 528 * If it's a null transfer, return immediately 529 */ 530 if (bp->b_bcount == 0) 531 goto done; 532 533 /* 534 * Do bounds checking, adjust transfer. if error, process. 535 * If end of partition, just return. 536 */ 537 if (CDPART(bp->b_dev) != RAW_PART && 538 bounds_check_with_label(bp, cd->sc_dk.dk_label, 539 (cd->flags & (CDF_WLABEL|CDF_LABELLING)) != 0) <= 0) 540 goto done; 541 542 opri = splbio(); 543 544 /* 545 * Place it in the queue of disk activities for this disk 546 */ 547 disksort(&cd->buf_queue, bp); 548 549 /* 550 * Tell the device to get going on the transfer if it's 551 * not doing anything, otherwise just wait for completion 552 */ 553 cdstart(cd); 554 555 splx(opri); 556 return; 557 558 bad: 559 bp->b_flags |= B_ERROR; 560 done: 561 /* 562 * Correctly set the buf to indicate a completed xfer 563 */ 564 bp->b_resid = bp->b_bcount; 565 biodone(bp); 566 } 567 568 /* 569 * cdstart looks to see if there is a buf waiting for the device 570 * and that the device is not already busy. If both are true, 571 * It deques the buf and creates a scsi command to perform the 572 * transfer in the buf. The transfer request will call scsipi_done 573 * on completion, which will in turn call this routine again 574 * so that the next queued transfer is performed. 575 * The bufs are queued by the strategy routine (cdstrategy) 576 * 577 * This routine is also called after other non-queued requests 578 * have been made of the scsi driver, to ensure that the queue 579 * continues to be drained. 580 * 581 * must be called at the correct (highish) spl level 582 * cdstart() is called at splbio from cdstrategy and scsipi_done 583 */ 584 void 585 cdstart(v) 586 register void *v; 587 { 588 register struct cd_softc *cd = v; 589 register struct scsipi_link *sc_link = cd->sc_link; 590 struct disklabel *lp = cd->sc_dk.dk_label; 591 struct buf *bp = 0; 592 struct buf *dp; 593 struct scsipi_rw_big cmd_big; 594 #if NCD_SCSIBUS > 0 595 struct scsi_rw cmd_small; 596 #endif 597 struct scsipi_generic *cmdp; 598 int blkno, nblks, cmdlen, error; 599 struct partition *p; 600 601 SC_DEBUG(sc_link, SDEV_DB2, ("cdstart ")); 602 /* 603 * Check if the device has room for another command 604 */ 605 while (sc_link->active < sc_link->openings) { 606 /* 607 * there is excess capacity, but a special waits 608 * It'll need the adapter as soon as we clear out of the 609 * way and let it run (user level wait). 610 */ 611 if (sc_link->flags & SDEV_WAITING) { 612 sc_link->flags &= ~SDEV_WAITING; 613 wakeup((caddr_t)sc_link); 614 return; 615 } 616 617 /* 618 * See if there is a buf with work for us to do.. 619 */ 620 dp = &cd->buf_queue; 621 if ((bp = dp->b_actf) == NULL) /* yes, an assign */ 622 return; 623 dp->b_actf = bp->b_actf; 624 625 /* 626 * If the device has become invalid, abort all the 627 * reads and writes until all files have been closed and 628 * re-opened 629 */ 630 if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 631 bp->b_error = EIO; 632 bp->b_flags |= B_ERROR; 633 bp->b_resid = bp->b_bcount; 634 biodone(bp); 635 continue; 636 } 637 638 /* 639 * We have a buf, now we should make a command 640 * 641 * First, translate the block to absolute and put it in terms 642 * of the logical blocksize of the device. 643 */ 644 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 645 if (CDPART(bp->b_dev) != RAW_PART) { 646 p = &lp->d_partitions[CDPART(bp->b_dev)]; 647 blkno += p->p_offset; 648 } 649 nblks = howmany(bp->b_bcount, lp->d_secsize); 650 651 #if NCD_SCSIBUS > 0 652 /* 653 * Fill out the scsi command. If the transfer will 654 * fit in a "small" cdb, use it. 655 */ 656 if (((blkno & 0x1fffff) == blkno) && 657 ((nblks & 0xff) == nblks) && sc_link->type == BUS_SCSI) { 658 /* 659 * We can fit in a small cdb. 660 */ 661 bzero(&cmd_small, sizeof(cmd_small)); 662 cmd_small.opcode = (bp->b_flags & B_READ) ? 663 SCSI_READ_COMMAND : SCSI_WRITE_COMMAND; 664 _lto3b(blkno, cmd_small.addr); 665 cmd_small.length = nblks & 0xff; 666 cmdlen = sizeof(cmd_small); 667 cmdp = (struct scsipi_generic *)&cmd_small; 668 } else 669 #endif 670 { 671 /* 672 * Need a large cdb. 673 */ 674 bzero(&cmd_big, sizeof(cmd_big)); 675 cmd_big.opcode = (bp->b_flags & B_READ) ? 676 READ_BIG : WRITE_BIG; 677 _lto4b(blkno, cmd_big.addr); 678 _lto2b(nblks, cmd_big.length); 679 cmdlen = sizeof(cmd_big); 680 cmdp = (struct scsipi_generic *)&cmd_big; 681 } 682 683 /* Instrumentation. */ 684 disk_busy(&cd->sc_dk); 685 686 /* 687 * Call the routine that chats with the adapter. 688 * Note: we cannot sleep as we may be an interrupt 689 * XXX NOSLEEP really needed? 690 */ 691 error = scsipi_command(sc_link, cmdp, cmdlen, 692 (u_char *)bp->b_data, bp->b_bcount, 693 CDRETRIES, 30000, bp, XS_CTL_NOSLEEP | XS_CTL_ASYNC | 694 ((bp->b_flags & B_READ) ? 695 XS_CTL_DATA_IN : XS_CTL_DATA_OUT)); 696 if (error) { 697 disk_unbusy(&cd->sc_dk, 0); 698 printf("%s: not queued, error %d\n", 699 cd->sc_dev.dv_xname, error); 700 } 701 } 702 } 703 704 void 705 cddone(xs) 706 struct scsipi_xfer *xs; 707 { 708 struct cd_softc *cd = xs->sc_link->device_softc; 709 710 if (xs->bp != NULL) { 711 disk_unbusy(&cd->sc_dk, xs->bp->b_bcount - xs->bp->b_resid); 712 #if NRND > 0 713 rnd_add_uint32(&cd->rnd_source, xs->bp->b_blkno); 714 #endif 715 } 716 } 717 718 void 719 cdminphys(bp) 720 struct buf *bp; 721 { 722 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(bp->b_dev)]; 723 long max; 724 725 /* 726 * If the device is ancient, we want to make sure that 727 * the transfer fits into a 6-byte cdb. 728 * 729 * XXX Note that the SCSI-I spec says that 256-block transfers 730 * are allowed in a 6-byte read/write, and are specified 731 * by settng the "length" to 0. However, we're conservative 732 * here, allowing only 255-block transfers in case an 733 * ancient device gets confused by length == 0. A length of 0 734 * in a 10-byte read/write actually means 0 blocks. 735 */ 736 if (cd->flags & CDF_ANCIENT) { 737 max = cd->sc_dk.dk_label->d_secsize * 0xff; 738 739 if (bp->b_bcount > max) 740 bp->b_bcount = max; 741 } 742 743 (*cd->sc_link->adapter->scsipi_minphys)(bp); 744 } 745 746 int 747 cdread(dev, uio, ioflag) 748 dev_t dev; 749 struct uio *uio; 750 int ioflag; 751 { 752 753 return (physio(cdstrategy, NULL, dev, B_READ, cdminphys, uio)); 754 } 755 756 int 757 cdwrite(dev, uio, ioflag) 758 dev_t dev; 759 struct uio *uio; 760 int ioflag; 761 { 762 763 return (physio(cdstrategy, NULL, dev, B_WRITE, cdminphys, uio)); 764 } 765 766 /* 767 * conversion between minute-seconde-frame and logical block adress 768 * adresses format 769 */ 770 void 771 lba2msf (lba, m, s, f) 772 u_long lba; 773 u_char *m, *s, *f; 774 { 775 u_long tmp; 776 777 tmp = lba + CD_BLOCK_OFFSET; /* offset of first logical frame */ 778 tmp &= 0xffffff; /* negative lbas use only 24 bits */ 779 *m = tmp / (CD_SECS * CD_FRAMES); 780 tmp %= (CD_SECS * CD_FRAMES); 781 *s = tmp / CD_FRAMES; 782 *f = tmp % CD_FRAMES; 783 } 784 785 u_long 786 msf2lba (m, s, f) 787 u_char m, s, f; 788 { 789 790 return ((((m * CD_SECS) + s) * CD_FRAMES + f) - CD_BLOCK_OFFSET); 791 } 792 793 794 /* 795 * Perform special action on behalf of the user. 796 * Knows about the internals of this device 797 */ 798 int 799 cdioctl(dev, cmd, addr, flag, p) 800 dev_t dev; 801 u_long cmd; 802 caddr_t addr; 803 int flag; 804 struct proc *p; 805 { 806 struct cd_softc *cd = cd_cd.cd_devs[CDUNIT(dev)]; 807 int part = CDPART(dev); 808 int error; 809 810 SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdioctl 0x%lx ", cmd)); 811 812 /* 813 * If the device is not valid, some IOCTLs can still be 814 * handled on the raw partition. Check this here. 815 */ 816 if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) { 817 switch (cmd) { 818 case DIOCWLABEL: 819 case DIOCLOCK: 820 case ODIOCEJECT: 821 case DIOCEJECT: 822 case SCIOCIDENTIFY: 823 case OSCIOCIDENTIFY: 824 case SCIOCCOMMAND: 825 case SCIOCDEBUG: 826 case CDIOCGETVOL: 827 case CDIOCSETVOL: 828 case CDIOCSETMONO: 829 case CDIOCSETSTEREO: 830 case CDIOCSETMUTE: 831 case CDIOCSETLEFT: 832 case CDIOCSETRIGHT: 833 case CDIOCCLOSE: 834 case CDIOCEJECT: 835 case CDIOCALLOW: 836 case CDIOCPREVENT: 837 case CDIOCSETDEBUG: 838 case CDIOCCLRDEBUG: 839 case CDIOCRESET: 840 case SCIOCRESET: 841 case CDIOCLOADUNLOAD: 842 case DVD_AUTH: 843 case DVD_READ_STRUCT: 844 if (part == RAW_PART) 845 break; 846 /* FALLTHROUGH */ 847 default: 848 if ((cd->sc_link->flags & SDEV_OPEN) == 0) 849 return (ENODEV); 850 else 851 return (EIO); 852 } 853 } 854 855 switch (cmd) { 856 case DIOCGDINFO: 857 *(struct disklabel *)addr = *(cd->sc_dk.dk_label); 858 return (0); 859 860 case DIOCGPART: 861 ((struct partinfo *)addr)->disklab = cd->sc_dk.dk_label; 862 ((struct partinfo *)addr)->part = 863 &cd->sc_dk.dk_label->d_partitions[part]; 864 return (0); 865 866 case DIOCWDINFO: 867 case DIOCSDINFO: 868 if ((flag & FWRITE) == 0) 869 return (EBADF); 870 871 if ((error = cdlock(cd)) != 0) 872 return (error); 873 cd->flags |= CDF_LABELLING; 874 875 error = setdisklabel(cd->sc_dk.dk_label, 876 (struct disklabel *)addr, /*cd->sc_dk.dk_openmask : */0, 877 cd->sc_dk.dk_cpulabel); 878 if (error == 0) { 879 /* XXX ? */ 880 } 881 882 cd->flags &= ~CDF_LABELLING; 883 cdunlock(cd); 884 return (error); 885 886 case DIOCWLABEL: 887 return (EBADF); 888 889 case DIOCGDEFLABEL: 890 cdgetdefaultlabel(cd, (struct disklabel *)addr); 891 return (0); 892 893 case CDIOCPLAYTRACKS: { 894 struct ioc_play_track *args = (struct ioc_play_track *)addr; 895 896 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 897 return (error); 898 return (cd_play_tracks(cd, args->start_track, 899 args->start_index, args->end_track, args->end_index)); 900 } 901 case CDIOCPLAYMSF: { 902 struct ioc_play_msf *args = (struct ioc_play_msf *)addr; 903 904 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 905 return (error); 906 return (cd_play_msf(cd, args->start_m, args->start_s, 907 args->start_f, args->end_m, args->end_s, args->end_f)); 908 } 909 case CDIOCPLAYBLOCKS: { 910 struct ioc_play_blocks *args = (struct ioc_play_blocks *)addr; 911 912 if ((error = (*cd->sc_ops->cdo_set_pa_immed)(cd, 0)) != 0) 913 return (error); 914 return (cd_play(cd, args->blk, args->len)); 915 } 916 case CDIOCREADSUBCHANNEL: { 917 struct ioc_read_subchannel *args = 918 (struct ioc_read_subchannel *)addr; 919 struct cd_sub_channel_info data; 920 int len = args->data_len; 921 922 if (len > sizeof(data) || 923 len < sizeof(struct cd_sub_channel_header)) 924 return (EINVAL); 925 error = cd_read_subchannel(cd, args->address_format, 926 args->data_format, args->track, &data, len); 927 if (error) 928 return (error); 929 len = min(len, _2btol(data.header.data_len) + 930 sizeof(struct cd_sub_channel_header)); 931 return (copyout(&data, args->data, len)); 932 } 933 case CDIOREADTOCHEADER: { 934 struct ioc_toc_header th; 935 936 if ((error = cd_read_toc(cd, 0, 0, &th, sizeof(th), 0)) != 0) 937 return (error); 938 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 939 #if BYTE_ORDER == BIG_ENDIAN 940 bswap((u_int8_t *)&th.len, sizeof(th.len)); 941 #endif 942 } else 943 th.len = ntohs(th.len); 944 bcopy(&th, addr, sizeof(th)); 945 return (0); 946 } 947 case CDIOREADTOCENTRYS: { 948 struct cd_toc toc; 949 struct ioc_read_toc_entry *te = 950 (struct ioc_read_toc_entry *)addr; 951 struct ioc_toc_header *th; 952 struct cd_toc_entry *cte; 953 int len = te->data_len; 954 int ntracks; 955 956 th = &toc.header; 957 958 if (len > sizeof(toc.entries) || 959 len < sizeof(struct cd_toc_entry)) 960 return (EINVAL); 961 error = cd_read_toc(cd, te->address_format, te->starting_track, 962 &toc, len + sizeof(struct ioc_toc_header), 0); 963 if (error) 964 return (error); 965 if (te->address_format == CD_LBA_FORMAT) 966 for (ntracks = 967 th->ending_track - th->starting_track + 1; 968 ntracks >= 0; ntracks--) { 969 cte = &toc.entries[ntracks]; 970 cte->addr_type = CD_LBA_FORMAT; 971 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 972 #if BYTE_ORDER == BIG_ENDIAN 973 bswap((u_int8_t*)&cte->addr, 974 sizeof(cte->addr)); 975 #endif 976 } else 977 cte->addr.lba = ntohl(cte->addr.lba); 978 } 979 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 980 #if BYTE_ORDER == BIG_ENDIAN 981 bswap((u_int8_t*)&th->len, sizeof(th->len)); 982 #endif 983 } else 984 th->len = ntohs(th->len); 985 len = min(len, th->len - (sizeof(th->starting_track) + 986 sizeof(th->ending_track))); 987 return (copyout(toc.entries, te->data, len)); 988 } 989 case CDIOREADMSADDR: { 990 struct cd_toc toc; 991 int sessno = *(int*)addr; 992 struct cd_toc_entry *cte; 993 994 if (sessno != 0) 995 return (EINVAL); 996 997 error = cd_read_toc(cd, 0, 0, &toc, 998 sizeof(struct ioc_toc_header) + sizeof(struct cd_toc_entry), 999 0x40 /* control word for "get MS info" */); 1000 1001 if (error) 1002 return (error); 1003 1004 cte = &toc.entries[0]; 1005 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 1006 #if BYTE_ORDER == BIG_ENDIAN 1007 bswap((u_int8_t*)&cte->addr, sizeof(cte->addr)); 1008 #endif 1009 } else 1010 cte->addr.lba = ntohl(cte->addr.lba); 1011 if (cd->sc_link->quirks & ADEV_LITTLETOC) { 1012 #if BYTE_ORDER == BIG_ENDIAN 1013 bswap((u_int8_t*)&toc.header.len, sizeof(toc.header.len)); 1014 #endif 1015 } else 1016 toc.header.len = ntohs(toc.header.len); 1017 1018 *(int*)addr = (toc.header.len >= 10 && cte->track > 1) ? 1019 cte->addr.lba : 0; 1020 return 0; 1021 } 1022 case CDIOCSETPATCH: { 1023 struct ioc_patch *arg = (struct ioc_patch *)addr; 1024 1025 return ((*cd->sc_ops->cdo_setchan)(cd, arg->patch[0], 1026 arg->patch[1], arg->patch[2], arg->patch[3], 0)); 1027 } 1028 case CDIOCGETVOL: { 1029 struct ioc_vol *arg = (struct ioc_vol *)addr; 1030 1031 return ((*cd->sc_ops->cdo_getvol)(cd, arg, 0)); 1032 } 1033 case CDIOCSETVOL: { 1034 struct ioc_vol *arg = (struct ioc_vol *)addr; 1035 1036 return ((*cd->sc_ops->cdo_setvol)(cd, arg, 0)); 1037 } 1038 1039 case CDIOCSETMONO: 1040 return ((*cd->sc_ops->cdo_setchan)(cd, BOTH_CHANNEL, 1041 BOTH_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1042 1043 case CDIOCSETSTEREO: 1044 return ((*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL, 1045 RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1046 1047 case CDIOCSETMUTE: 1048 return ((*cd->sc_ops->cdo_setchan)(cd, MUTE_CHANNEL, 1049 MUTE_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1050 1051 case CDIOCSETLEFT: 1052 return ((*cd->sc_ops->cdo_setchan)(cd, LEFT_CHANNEL, 1053 LEFT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1054 1055 case CDIOCSETRIGHT: 1056 return ((*cd->sc_ops->cdo_setchan)(cd, RIGHT_CHANNEL, 1057 RIGHT_CHANNEL, MUTE_CHANNEL, MUTE_CHANNEL, 0)); 1058 1059 case CDIOCRESUME: 1060 return (cd_pause(cd, PA_RESUME)); 1061 case CDIOCPAUSE: 1062 return (cd_pause(cd, PA_PAUSE)); 1063 case CDIOCSTART: 1064 return (scsipi_start(cd->sc_link, SSS_START, 0)); 1065 case CDIOCSTOP: 1066 return (scsipi_start(cd->sc_link, SSS_STOP, 0)); 1067 case CDIOCCLOSE: 1068 return (scsipi_start(cd->sc_link, SSS_START|SSS_LOEJ, 1069 XS_CTL_IGNORE_NOT_READY | XS_CTL_IGNORE_MEDIA_CHANGE)); 1070 case DIOCEJECT: 1071 if (*(int *)addr == 0) { 1072 /* 1073 * Don't force eject: check that we are the only 1074 * partition open. If so, unlock it. 1075 */ 1076 if ((cd->sc_dk.dk_openmask & ~(1 << part)) == 0 && 1077 cd->sc_dk.dk_bopenmask + cd->sc_dk.dk_copenmask == 1078 cd->sc_dk.dk_openmask) { 1079 error = scsipi_prevent(cd->sc_link, PR_ALLOW, 1080 XS_CTL_IGNORE_NOT_READY); 1081 if (error) 1082 return (error); 1083 } else { 1084 return (EBUSY); 1085 } 1086 } 1087 /* FALLTHROUGH */ 1088 case CDIOCEJECT: /* FALLTHROUGH */ 1089 case ODIOCEJECT: 1090 return (scsipi_start(cd->sc_link, SSS_STOP|SSS_LOEJ, 0)); 1091 case CDIOCALLOW: 1092 return (scsipi_prevent(cd->sc_link, PR_ALLOW, 0)); 1093 case CDIOCPREVENT: 1094 return (scsipi_prevent(cd->sc_link, PR_PREVENT, 0)); 1095 case DIOCLOCK: 1096 return (scsipi_prevent(cd->sc_link, 1097 (*(int *)addr) ? PR_PREVENT : PR_ALLOW, 0)); 1098 case CDIOCSETDEBUG: 1099 cd->sc_link->flags |= (SDEV_DB1 | SDEV_DB2); 1100 return (0); 1101 case CDIOCCLRDEBUG: 1102 cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); 1103 return (0); 1104 case CDIOCRESET: 1105 case SCIOCRESET: 1106 return (cd_reset(cd)); 1107 case CDIOCLOADUNLOAD: { 1108 struct ioc_load_unload *args = (struct ioc_load_unload *)addr; 1109 1110 return ((*cd->sc_ops->cdo_load_unload)(cd, args->options, 1111 args->slot)); 1112 case DVD_AUTH: 1113 return (dvd_auth(cd, (dvd_authinfo *)addr)); 1114 case DVD_READ_STRUCT: 1115 return (dvd_read_struct(cd, (dvd_struct *)addr)); 1116 } 1117 1118 default: 1119 if (part != RAW_PART) 1120 return (ENOTTY); 1121 return (scsipi_do_ioctl(cd->sc_link, dev, cmd, addr, flag, p)); 1122 } 1123 1124 #ifdef DIAGNOSTIC 1125 panic("cdioctl: impossible"); 1126 #endif 1127 } 1128 1129 void 1130 cdgetdefaultlabel(cd, lp) 1131 struct cd_softc *cd; 1132 struct disklabel *lp; 1133 { 1134 1135 bzero(lp, sizeof(struct disklabel)); 1136 1137 lp->d_secsize = cd->params.blksize; 1138 lp->d_ntracks = 1; 1139 lp->d_nsectors = 100; 1140 lp->d_ncylinders = (cd->params.disksize / 100) + 1; 1141 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1142 1143 switch (cd->sc_link->type) { 1144 #if NCD_SCSIBUS > 0 1145 case BUS_SCSI: 1146 lp->d_type = DTYPE_SCSI; 1147 break; 1148 #endif 1149 #if NCD_ATAPIBUS > 0 1150 case BUS_ATAPI: 1151 lp->d_type = DTYPE_ATAPI; 1152 break; 1153 #endif 1154 } 1155 strncpy(lp->d_typename, cd->name, 16); 1156 strncpy(lp->d_packname, "fictitious", 16); 1157 lp->d_secperunit = cd->params.disksize; 1158 lp->d_rpm = 300; 1159 lp->d_interleave = 1; 1160 lp->d_flags = D_REMOVABLE; 1161 1162 lp->d_partitions[0].p_offset = 0; 1163 lp->d_partitions[0].p_size = 1164 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1165 lp->d_partitions[0].p_fstype = FS_ISO9660; 1166 lp->d_partitions[RAW_PART].p_offset = 0; 1167 lp->d_partitions[RAW_PART].p_size = 1168 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1169 lp->d_partitions[RAW_PART].p_fstype = FS_ISO9660; 1170 lp->d_npartitions = RAW_PART + 1; 1171 1172 lp->d_magic = DISKMAGIC; 1173 lp->d_magic2 = DISKMAGIC; 1174 lp->d_checksum = dkcksum(lp); 1175 } 1176 1177 /* 1178 * Load the label information on the named device 1179 * Actually fabricate a disklabel 1180 * 1181 * EVENTUALLY take information about different 1182 * data tracks from the TOC and put it in the disklabel 1183 */ 1184 void 1185 cdgetdisklabel(cd) 1186 struct cd_softc *cd; 1187 { 1188 struct disklabel *lp = cd->sc_dk.dk_label; 1189 1190 bzero(cd->sc_dk.dk_cpulabel, sizeof(struct cpu_disklabel)); 1191 1192 cdgetdefaultlabel(cd, lp); 1193 } 1194 1195 /* 1196 * Find out from the device what it's capacity is 1197 */ 1198 u_long 1199 cd_size(cd, flags) 1200 struct cd_softc *cd; 1201 int flags; 1202 { 1203 struct scsipi_read_cd_cap_data rdcap; 1204 struct scsipi_read_cd_capacity scsipi_cmd; 1205 int blksize; 1206 u_long size; 1207 1208 if (cd->sc_link->quirks & ADEV_NOCAPACITY) { 1209 /* 1210 * the drive doesn't support the READ_CD_CAPACITY command 1211 * use a fake size 1212 */ 1213 cd->params.blksize = 2048; 1214 cd->params.disksize = 400000; 1215 return (400000); 1216 } 1217 1218 /* 1219 * make up a scsi command and ask the scsi driver to do 1220 * it for you. 1221 */ 1222 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1223 scsipi_cmd.opcode = READ_CD_CAPACITY; 1224 1225 /* 1226 * If the command works, interpret the result as a 4 byte 1227 * number of blocks and a blocksize 1228 */ 1229 if (scsipi_command(cd->sc_link, 1230 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1231 (u_char *)&rdcap, sizeof(rdcap), CDRETRIES, 30000, NULL, 1232 flags | XS_CTL_DATA_IN) != 0) 1233 return (0); 1234 1235 blksize = _4btol(rdcap.length); 1236 if ((blksize < 512) || ((blksize & 511) != 0)) 1237 blksize = 2048; /* some drives lie ! */ 1238 cd->params.blksize = blksize; 1239 1240 size = _4btol(rdcap.addr) + 1; 1241 if (size < 100) 1242 size = 400000; /* ditto */ 1243 cd->params.disksize = size; 1244 1245 SC_DEBUG(cd->sc_link, SDEV_DB2, ("cd_size: %d %ld\n", blksize, size)); 1246 return (size); 1247 } 1248 1249 /* 1250 * Get scsi driver to send a "start playing" command 1251 */ 1252 int 1253 cd_play(cd, blkno, nblks) 1254 struct cd_softc *cd; 1255 int blkno, nblks; 1256 { 1257 struct scsipi_play scsipi_cmd; 1258 1259 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1260 scsipi_cmd.opcode = PLAY; 1261 _lto4b(blkno, scsipi_cmd.blk_addr); 1262 _lto2b(nblks, scsipi_cmd.xfer_len); 1263 return (scsipi_command(cd->sc_link, 1264 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1265 0, 0, CDRETRIES, 30000, NULL, 0)); 1266 } 1267 1268 /* 1269 * Get scsi driver to send a "start playing" command 1270 */ 1271 int 1272 cd_play_tracks(cd, strack, sindex, etrack, eindex) 1273 struct cd_softc *cd; 1274 int strack, sindex, etrack, eindex; 1275 { 1276 struct cd_toc toc; 1277 int error; 1278 1279 if (!etrack) 1280 return (EIO); 1281 if (strack > etrack) 1282 return (EINVAL); 1283 1284 if ((error = cd_load_toc(cd, &toc)) != 0) 1285 return (error); 1286 1287 if (++etrack > (toc.header.ending_track+1)) 1288 etrack = toc.header.ending_track+1; 1289 1290 strack -= toc.header.starting_track; 1291 etrack -= toc.header.starting_track; 1292 if (strack < 0) 1293 return (EINVAL); 1294 1295 return (cd_play_msf(cd, toc.entries[strack].addr.msf.minute, 1296 toc.entries[strack].addr.msf.second, 1297 toc.entries[strack].addr.msf.frame, 1298 toc.entries[etrack].addr.msf.minute, 1299 toc.entries[etrack].addr.msf.second, 1300 toc.entries[etrack].addr.msf.frame)); 1301 } 1302 1303 /* 1304 * Get scsi driver to send a "play msf" command 1305 */ 1306 int 1307 cd_play_msf(cd, startm, starts, startf, endm, ends, endf) 1308 struct cd_softc *cd; 1309 int startm, starts, startf, endm, ends, endf; 1310 { 1311 struct scsipi_play_msf scsipi_cmd; 1312 1313 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1314 scsipi_cmd.opcode = PLAY_MSF; 1315 scsipi_cmd.start_m = startm; 1316 scsipi_cmd.start_s = starts; 1317 scsipi_cmd.start_f = startf; 1318 scsipi_cmd.end_m = endm; 1319 scsipi_cmd.end_s = ends; 1320 scsipi_cmd.end_f = endf; 1321 return (scsipi_command(cd->sc_link, 1322 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1323 0, 0, CDRETRIES, 30000, NULL, 0)); 1324 } 1325 1326 /* 1327 * Get scsi driver to send a "start up" command 1328 */ 1329 int 1330 cd_pause(cd, go) 1331 struct cd_softc *cd; 1332 int go; 1333 { 1334 struct scsipi_pause scsipi_cmd; 1335 1336 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1337 scsipi_cmd.opcode = PAUSE; 1338 scsipi_cmd.resume = go & 0xff; 1339 return (scsipi_command(cd->sc_link, 1340 (struct scsipi_generic *)&scsipi_cmd, sizeof(scsipi_cmd), 1341 0, 0, CDRETRIES, 30000, NULL, 0)); 1342 } 1343 1344 /* 1345 * Get scsi driver to send a "RESET" command 1346 */ 1347 int 1348 cd_reset(cd) 1349 struct cd_softc *cd; 1350 { 1351 1352 return (scsipi_command(cd->sc_link, 0, 0, 0, 0, 1353 CDRETRIES, 30000, NULL, XS_CTL_RESET)); 1354 } 1355 1356 /* 1357 * Read subchannel 1358 */ 1359 int 1360 cd_read_subchannel(cd, mode, format, track, data, len) 1361 struct cd_softc *cd; 1362 int mode, format, track, len; 1363 struct cd_sub_channel_info *data; 1364 { 1365 struct scsipi_read_subchannel scsipi_cmd; 1366 1367 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1368 scsipi_cmd.opcode = READ_SUBCHANNEL; 1369 if (mode == CD_MSF_FORMAT) 1370 scsipi_cmd.byte2 |= CD_MSF; 1371 scsipi_cmd.byte3 = SRS_SUBQ; 1372 scsipi_cmd.subchan_format = format; 1373 scsipi_cmd.track = track; 1374 _lto2b(len, scsipi_cmd.data_len); 1375 return (scsipi_command(cd->sc_link, 1376 (struct scsipi_generic *)&scsipi_cmd, 1377 sizeof(struct scsipi_read_subchannel), (u_char *)data, len, 1378 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN|XS_CTL_SILENT)); 1379 } 1380 1381 /* 1382 * Read table of contents 1383 */ 1384 int 1385 cd_read_toc(cd, mode, start, data, len, control) 1386 struct cd_softc *cd; 1387 int mode, start, len, control; 1388 void *data; 1389 { 1390 struct scsipi_read_toc scsipi_cmd; 1391 int ntoc; 1392 1393 bzero(&scsipi_cmd, sizeof(scsipi_cmd)); 1394 #if 0 1395 if (len != sizeof(struct ioc_toc_header)) 1396 ntoc = ((len) - sizeof(struct ioc_toc_header)) / 1397 sizeof(struct cd_toc_entry); 1398 else 1399 #endif 1400 ntoc = len; 1401 scsipi_cmd.opcode = READ_TOC; 1402 if (mode == CD_MSF_FORMAT) 1403 scsipi_cmd.byte2 |= CD_MSF; 1404 scsipi_cmd.from_track = start; 1405 _lto2b(ntoc, scsipi_cmd.data_len); 1406 scsipi_cmd.control = control; 1407 return (scsipi_command(cd->sc_link, 1408 (struct scsipi_generic *)&scsipi_cmd, 1409 sizeof(struct scsipi_read_toc), (u_char *)data, len, CDRETRIES, 1410 30000, NULL, XS_CTL_DATA_IN)); 1411 } 1412 1413 int 1414 cd_load_toc(cd, toc) 1415 struct cd_softc *cd; 1416 struct cd_toc *toc; 1417 { 1418 int ntracks, len, error; 1419 1420 if ((error = cd_read_toc(cd, 0, 0, toc, sizeof(toc->header), 0)) != 0) 1421 return (error); 1422 1423 ntracks = toc->header.ending_track - toc->header.starting_track + 1; 1424 len = (ntracks + 1) * sizeof(struct cd_toc_entry) + 1425 sizeof(toc->header); 1426 if ((error = cd_read_toc(cd, CD_MSF_FORMAT, 0, toc, len, 0)) != 0) 1427 return (error); 1428 return (0); 1429 } 1430 1431 /* 1432 * Get the scsi driver to send a full inquiry to the device and use the 1433 * results to fill out the disk parameter structure. 1434 */ 1435 int 1436 cd_get_parms(cd, flags) 1437 struct cd_softc *cd; 1438 int flags; 1439 { 1440 1441 /* 1442 * give a number of sectors so that sec * trks * cyls 1443 * is <= disk_size 1444 */ 1445 if (cd_size(cd, flags) == 0) 1446 return (ENXIO); 1447 return (0); 1448 } 1449 1450 int 1451 cdsize(dev) 1452 dev_t dev; 1453 { 1454 1455 /* CD-ROMs are read-only. */ 1456 return (-1); 1457 } 1458 1459 int 1460 cddump(dev, blkno, va, size) 1461 dev_t dev; 1462 daddr_t blkno; 1463 caddr_t va; 1464 size_t size; 1465 { 1466 1467 /* Not implemented. */ 1468 return (ENXIO); 1469 } 1470 1471 #define dvd_copy_key(dst, src) memcpy((dst), (src), sizeof(dvd_key)) 1472 #define dvd_copy_challenge(dst, src) memcpy((dst), (src), sizeof(dvd_challenge)) 1473 1474 int 1475 dvd_auth(cd, a) 1476 struct cd_softc *cd; 1477 dvd_authinfo *a; 1478 { 1479 struct scsipi_generic cmd; 1480 u_int8_t buf[20]; 1481 int error; 1482 1483 memset(cmd.bytes, 0, 15); 1484 memset(buf, 0, sizeof(buf)); 1485 1486 switch (a->type) { 1487 case DVD_LU_SEND_AGID: 1488 cmd.opcode = GPCMD_REPORT_KEY; 1489 cmd.bytes[8] = 8; 1490 cmd.bytes[9] = 0 | (0 << 6); 1491 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 8, 1492 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1493 if (error) 1494 return (error); 1495 a->lsa.agid = buf[7] >> 6; 1496 return (0); 1497 1498 case DVD_LU_SEND_CHALLENGE: 1499 cmd.opcode = GPCMD_REPORT_KEY; 1500 cmd.bytes[8] = 16; 1501 cmd.bytes[9] = 1 | (a->lsc.agid << 6); 1502 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 16, 1503 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1504 if (error) 1505 return (error); 1506 dvd_copy_challenge(a->lsc.chal, &buf[4]); 1507 return (0); 1508 1509 case DVD_LU_SEND_KEY1: 1510 cmd.opcode = GPCMD_REPORT_KEY; 1511 cmd.bytes[8] = 12; 1512 cmd.bytes[9] = 2 | (a->lsk.agid << 6); 1513 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 12, 1514 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1515 if (error) 1516 return (error); 1517 dvd_copy_key(a->lsk.key, &buf[4]); 1518 return (0); 1519 1520 case DVD_LU_SEND_TITLE_KEY: 1521 cmd.opcode = GPCMD_REPORT_KEY; 1522 _lto4b(a->lstk.lba, &cmd.bytes[1]); 1523 cmd.bytes[8] = 12; 1524 cmd.bytes[9] = 4 | (a->lstk.agid << 6); 1525 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 12, 1526 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1527 if (error) 1528 return (error); 1529 a->lstk.cpm = (buf[4] >> 7) & 1; 1530 a->lstk.cp_sec = (buf[4] >> 6) & 1; 1531 a->lstk.cgms = (buf[4] >> 4) & 3; 1532 dvd_copy_key(a->lstk.title_key, &buf[5]); 1533 return (0); 1534 1535 case DVD_LU_SEND_ASF: 1536 cmd.opcode = GPCMD_REPORT_KEY; 1537 cmd.bytes[8] = 8; 1538 cmd.bytes[9] = 5 | (a->lsasf.agid << 6); 1539 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 8, 1540 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1541 if (error) 1542 return (error); 1543 a->lsasf.asf = buf[7] & 1; 1544 return (0); 1545 1546 case DVD_HOST_SEND_CHALLENGE: 1547 cmd.opcode = GPCMD_SEND_KEY; 1548 cmd.bytes[8] = 16; 1549 cmd.bytes[9] = 1 | (a->hsc.agid << 6); 1550 buf[1] = 14; 1551 dvd_copy_challenge(&buf[4], a->hsc.chal); 1552 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 16, 1553 CDRETRIES, 30000, NULL, XS_CTL_DATA_OUT|XS_CTL_DATA_IN); 1554 if (error) 1555 return (error); 1556 a->type = DVD_LU_SEND_KEY1; 1557 return (0); 1558 1559 case DVD_HOST_SEND_KEY2: 1560 cmd.opcode = GPCMD_SEND_KEY; 1561 cmd.bytes[8] = 12; 1562 cmd.bytes[9] = 3 | (a->hsk.agid << 6); 1563 buf[1] = 10; 1564 dvd_copy_key(&buf[4], a->hsk.key); 1565 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 12, 1566 CDRETRIES, 30000, NULL, XS_CTL_DATA_OUT|XS_CTL_DATA_IN); 1567 if (error) { 1568 a->type = DVD_AUTH_FAILURE; 1569 return (error); 1570 } 1571 a->type = DVD_AUTH_ESTABLISHED; 1572 return (0); 1573 1574 case DVD_INVALIDATE_AGID: 1575 cmd.opcode = GPCMD_REPORT_KEY; 1576 cmd.bytes[9] = 0x3f | (a->lsa.agid << 6); 1577 error = scsipi_command(cd->sc_link, &cmd, 16, buf, 16, 1578 CDRETRIES, 30000, NULL, 0); 1579 if (error) 1580 return (error); 1581 return (0); 1582 1583 default: 1584 return (ENOTTY); 1585 } 1586 } 1587 1588 int 1589 dvd_read_physical(cd, s) 1590 struct cd_softc *cd; 1591 dvd_struct *s; 1592 { 1593 struct scsipi_generic cmd; 1594 u_int8_t buf[4 + 4 * 20], *bufp; 1595 int error; 1596 struct dvd_layer *layer; 1597 int i; 1598 1599 memset(cmd.bytes, 0, 15); 1600 memset(buf, 0, sizeof(buf)); 1601 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1602 cmd.bytes[6] = s->type; 1603 _lto2b(sizeof(buf), &cmd.bytes[7]); 1604 1605 cmd.bytes[5] = s->physical.layer_num; 1606 error = scsipi_command(cd->sc_link, &cmd, 16, buf, sizeof(buf), 1607 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1608 if (error) 1609 return (error); 1610 for (i = 0, bufp = &buf[4], layer = &s->physical.layer[0]; i < 4; 1611 i++, bufp += 20, layer++) { 1612 memset(layer, 0, sizeof(*layer)); 1613 layer->book_version = bufp[0] & 0xf; 1614 layer->book_type = bufp[0] >> 4; 1615 layer->min_rate = bufp[1] & 0xf; 1616 layer->disc_size = bufp[1] >> 4; 1617 layer->layer_type = bufp[2] & 0xf; 1618 layer->track_path = (bufp[2] >> 4) & 1; 1619 layer->nlayers = (bufp[2] >> 5) & 3; 1620 layer->track_density = bufp[3] & 0xf; 1621 layer->linear_density = bufp[3] >> 4; 1622 layer->start_sector = _4btol(&bufp[4]); 1623 layer->end_sector = _4btol(&bufp[8]); 1624 layer->end_sector_l0 = _4btol(&bufp[12]); 1625 layer->bca = bufp[16] >> 7; 1626 } 1627 return (0); 1628 } 1629 1630 int 1631 dvd_read_copyright(cd, s) 1632 struct cd_softc *cd; 1633 dvd_struct *s; 1634 { 1635 struct scsipi_generic cmd; 1636 u_int8_t buf[8]; 1637 int error; 1638 1639 memset(cmd.bytes, 0, 15); 1640 memset(buf, 0, sizeof(buf)); 1641 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1642 cmd.bytes[6] = s->type; 1643 _lto2b(sizeof(buf), &cmd.bytes[7]); 1644 1645 cmd.bytes[5] = s->copyright.layer_num; 1646 error = scsipi_command(cd->sc_link, &cmd, 16, buf, sizeof(buf), 1647 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1648 if (error) 1649 return (error); 1650 s->copyright.cpst = buf[4]; 1651 s->copyright.rmi = buf[5]; 1652 return (0); 1653 } 1654 1655 int 1656 dvd_read_disckey(cd, s) 1657 struct cd_softc *cd; 1658 dvd_struct *s; 1659 { 1660 struct scsipi_generic cmd; 1661 u_int8_t buf[4 + 2048]; 1662 int error; 1663 1664 memset(cmd.bytes, 0, 15); 1665 memset(buf, 0, sizeof(buf)); 1666 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1667 cmd.bytes[6] = s->type; 1668 _lto2b(sizeof(buf), &cmd.bytes[7]); 1669 1670 cmd.bytes[9] = s->disckey.agid << 6; 1671 error = scsipi_command(cd->sc_link, &cmd, 16, buf, sizeof(buf), 1672 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1673 if (error) 1674 return (error); 1675 memcpy(s->disckey.value, &buf[4], 2048); 1676 return (0); 1677 } 1678 1679 int 1680 dvd_read_bca(cd, s) 1681 struct cd_softc *cd; 1682 dvd_struct *s; 1683 { 1684 struct scsipi_generic cmd; 1685 u_int8_t buf[4 + 188]; 1686 int error; 1687 1688 memset(cmd.bytes, 0, 15); 1689 memset(buf, 0, sizeof(buf)); 1690 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1691 cmd.bytes[6] = s->type; 1692 _lto2b(sizeof(buf), &cmd.bytes[7]); 1693 1694 error = scsipi_command(cd->sc_link, &cmd, 16, buf, sizeof(buf), 1695 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1696 if (error) 1697 return (error); 1698 s->bca.len = _2btol(&buf[0]); 1699 if (s->bca.len < 12 || s->bca.len > 188) 1700 return (EIO); 1701 memcpy(s->bca.value, &buf[4], s->bca.len); 1702 return (0); 1703 } 1704 1705 int 1706 dvd_read_manufact(cd, s) 1707 struct cd_softc *cd; 1708 dvd_struct *s; 1709 { 1710 struct scsipi_generic cmd; 1711 u_int8_t buf[4 + 2048]; 1712 int error; 1713 1714 memset(cmd.bytes, 0, 15); 1715 memset(buf, 0, sizeof(buf)); 1716 cmd.opcode = GPCMD_READ_DVD_STRUCTURE; 1717 cmd.bytes[6] = s->type; 1718 _lto2b(sizeof(buf), &cmd.bytes[7]); 1719 1720 error = scsipi_command(cd->sc_link, &cmd, 16, buf, sizeof(buf), 1721 CDRETRIES, 30000, NULL, XS_CTL_DATA_IN); 1722 if (error) 1723 return (error); 1724 s->manufact.len = _2btol(&buf[0]); 1725 if (s->manufact.len < 0 || s->manufact.len > 2048) 1726 return (EIO); 1727 memcpy(s->manufact.value, &buf[4], s->manufact.len); 1728 return (0); 1729 } 1730 1731 int 1732 dvd_read_struct(cd, s) 1733 struct cd_softc *cd; 1734 dvd_struct *s; 1735 { 1736 1737 switch (s->type) { 1738 case DVD_STRUCT_PHYSICAL: 1739 return (dvd_read_physical(cd, s)); 1740 case DVD_STRUCT_COPYRIGHT: 1741 return (dvd_read_copyright(cd, s)); 1742 case DVD_STRUCT_DISCKEY: 1743 return (dvd_read_disckey(cd, s)); 1744 case DVD_STRUCT_BCA: 1745 return (dvd_read_bca(cd, s)); 1746 case DVD_STRUCT_MANUFACT: 1747 return (dvd_read_manufact(cd, s)); 1748 default: 1749 return (EINVAL); 1750 } 1751 } 1752