scsi_cd.c revision 260387
1/*- 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/*- 29 * Portions of this driver taken from the original FreeBSD cd driver. 30 * Written by Julian Elischer (julian@tfs.com) 31 * for TRW Financial Systems for use under the MACH(2.5) operating system. 32 * 33 * TRW Financial Systems, in accordance with their agreement with Carnegie 34 * Mellon University, makes this software available to CMU to distribute 35 * or use in any manner that they see fit as long as this message is kept with 36 * the software. For this reason TFS also grants any other persons or 37 * organisations permission to use or modify this software. 38 * 39 * TFS supplies this software to be publicly redistributed 40 * on the understanding that TFS is not responsible for the correct 41 * functioning of this software in any circumstances. 42 * 43 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 44 * 45 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 46 */ 47 48#include <sys/cdefs.h> 49__FBSDID("$FreeBSD: stable/10/sys/cam/scsi/scsi_cd.c 260387 2014-01-07 01:51:48Z scottl $"); 50 51#include "opt_cd.h" 52 53#include <sys/param.h> 54#include <sys/systm.h> 55#include <sys/kernel.h> 56#include <sys/bio.h> 57#include <sys/conf.h> 58#include <sys/disk.h> 59#include <sys/malloc.h> 60#include <sys/cdio.h> 61#include <sys/cdrio.h> 62#include <sys/dvdio.h> 63#include <sys/devicestat.h> 64#include <sys/sysctl.h> 65#include <sys/taskqueue.h> 66#include <geom/geom_disk.h> 67 68#include <cam/cam.h> 69#include <cam/cam_ccb.h> 70#include <cam/cam_periph.h> 71#include <cam/cam_xpt_periph.h> 72#include <cam/cam_queue.h> 73#include <cam/cam_sim.h> 74 75#include <cam/scsi/scsi_message.h> 76#include <cam/scsi/scsi_da.h> 77#include <cam/scsi/scsi_cd.h> 78 79#define LEADOUT 0xaa /* leadout toc entry */ 80 81struct cd_params { 82 u_int32_t blksize; 83 u_long disksize; 84}; 85 86typedef enum { 87 CD_Q_NONE = 0x00, 88 CD_Q_NO_TOUCH = 0x01, 89 CD_Q_BCD_TRACKS = 0x02, 90 CD_Q_NO_CHANGER = 0x04, 91 CD_Q_CHANGER = 0x08, 92 CD_Q_10_BYTE_ONLY = 0x10 93} cd_quirks; 94 95#define CD_Q_BIT_STRING \ 96 "\020" \ 97 "\001NO_TOUCH" \ 98 "\002BCD_TRACKS" \ 99 "\003NO_CHANGER" \ 100 "\004CHANGER" \ 101 "\00510_BYTE_ONLY" 102 103typedef enum { 104 CD_FLAG_INVALID = 0x0001, 105 CD_FLAG_NEW_DISC = 0x0002, 106 CD_FLAG_DISC_LOCKED = 0x0004, 107 CD_FLAG_DISC_REMOVABLE = 0x0008, 108 CD_FLAG_SAW_MEDIA = 0x0010, 109 CD_FLAG_CHANGER = 0x0040, 110 CD_FLAG_ACTIVE = 0x0080, 111 CD_FLAG_SCHED_ON_COMP = 0x0100, 112 CD_FLAG_RETRY_UA = 0x0200, 113 CD_FLAG_VALID_MEDIA = 0x0400, 114 CD_FLAG_VALID_TOC = 0x0800, 115 CD_FLAG_SCTX_INIT = 0x1000 116} cd_flags; 117 118typedef enum { 119 CD_CCB_PROBE = 0x01, 120 CD_CCB_BUFFER_IO = 0x02, 121 CD_CCB_TUR = 0x04, 122 CD_CCB_TYPE_MASK = 0x0F, 123 CD_CCB_RETRY_UA = 0x10 124} cd_ccb_state; 125 126typedef enum { 127 CHANGER_TIMEOUT_SCHED = 0x01, 128 CHANGER_SHORT_TMOUT_SCHED = 0x02, 129 CHANGER_MANUAL_CALL = 0x04, 130 CHANGER_NEED_TIMEOUT = 0x08 131} cd_changer_flags; 132 133#define ccb_state ppriv_field0 134#define ccb_bp ppriv_ptr1 135 136struct cd_tocdata { 137 struct ioc_toc_header header; 138 struct cd_toc_entry entries[100]; 139}; 140 141struct cd_toc_single { 142 struct ioc_toc_header header; 143 struct cd_toc_entry entry; 144}; 145 146typedef enum { 147 CD_STATE_PROBE, 148 CD_STATE_NORMAL 149} cd_state; 150 151struct cd_softc { 152 cam_pinfo pinfo; 153 cd_state state; 154 volatile cd_flags flags; 155 struct bio_queue_head bio_queue; 156 LIST_HEAD(, ccb_hdr) pending_ccbs; 157 struct cd_params params; 158 union ccb saved_ccb; 159 cd_quirks quirks; 160 STAILQ_ENTRY(cd_softc) changer_links; 161 struct cdchanger *changer; 162 int bufs_left; 163 struct cam_periph *periph; 164 int minimum_command_size; 165 int outstanding_cmds; 166 int tur; 167 struct task sysctl_task; 168 struct sysctl_ctx_list sysctl_ctx; 169 struct sysctl_oid *sysctl_tree; 170 STAILQ_HEAD(, cd_mode_params) mode_queue; 171 struct cd_tocdata toc; 172 struct disk *disk; 173 struct callout mediapoll_c; 174}; 175 176struct cd_page_sizes { 177 int page; 178 int page_size; 179}; 180 181static struct cd_page_sizes cd_page_size_table[] = 182{ 183 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 184}; 185 186struct cd_quirk_entry { 187 struct scsi_inquiry_pattern inq_pat; 188 cd_quirks quirks; 189}; 190 191/* 192 * The changer quirk entries aren't strictly necessary. Basically, what 193 * they do is tell cdregister() up front that a device is a changer. 194 * Otherwise, it will figure that fact out once it sees a LUN on the device 195 * that is greater than 0. If it is known up front that a device is a changer, 196 * all I/O to the device will go through the changer scheduling routines, as 197 * opposed to the "normal" CD code. 198 * 199 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 200 * your device hangs when it gets a 10 byte command. Adding a quirk just 201 * to get rid of the informative diagnostic message is not acceptable. All 202 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 203 * referenced in a comment along with the quirk) , and must be approved by 204 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 205 * be removed until the submitter can explain why they are needed. 206 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 207 * when the CAM_NEW_TRAN_CODE work is done. 208 */ 209static struct cd_quirk_entry cd_quirk_table[] = 210{ 211 { 212 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 213 /*quirks*/ CD_Q_CHANGER 214 }, 215 { 216 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 217 "*"}, /* quirks */ CD_Q_CHANGER 218 }, 219 { 220 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 221 /* quirks */ CD_Q_CHANGER 222 }, 223 { 224 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 225 /* quirks */ CD_Q_BCD_TRACKS 226 } 227}; 228 229static disk_open_t cdopen; 230static disk_close_t cdclose; 231static disk_ioctl_t cdioctl; 232static disk_strategy_t cdstrategy; 233 234static periph_init_t cdinit; 235static periph_ctor_t cdregister; 236static periph_dtor_t cdcleanup; 237static periph_start_t cdstart; 238static periph_oninv_t cdoninvalidate; 239static void cdasync(void *callback_arg, u_int32_t code, 240 struct cam_path *path, void *arg); 241static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 242static void cdshorttimeout(void *arg); 243static void cdschedule(struct cam_periph *periph, int priority); 244static void cdrunchangerqueue(void *arg); 245static void cdchangerschedule(struct cd_softc *softc); 246static int cdrunccb(union ccb *ccb, 247 int (*error_routine)(union ccb *ccb, 248 u_int32_t cam_flags, 249 u_int32_t sense_flags), 250 u_int32_t cam_flags, u_int32_t sense_flags); 251static union ccb *cdgetccb(struct cam_periph *periph, 252 u_int32_t priority); 253static void cddone(struct cam_periph *periph, 254 union ccb *start_ccb); 255static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 256static int cdgetpagesize(int page_num); 257static void cdprevent(struct cam_periph *periph, int action); 258static int cdcheckmedia(struct cam_periph *periph); 259static int cdsize(struct cam_periph *periph, u_int32_t *size); 260static int cd6byteworkaround(union ccb *ccb); 261static int cderror(union ccb *ccb, u_int32_t cam_flags, 262 u_int32_t sense_flags); 263static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 264 u_int32_t start, u_int8_t *data, 265 u_int32_t len, u_int32_t sense_flags); 266static int cdgetmode(struct cam_periph *periph, 267 struct cd_mode_params *data, u_int32_t page); 268static int cdsetmode(struct cam_periph *periph, 269 struct cd_mode_params *data); 270static int cdplay(struct cam_periph *periph, u_int32_t blk, 271 u_int32_t len); 272static int cdreadsubchannel(struct cam_periph *periph, 273 u_int32_t mode, u_int32_t format, 274 int track, 275 struct cd_sub_channel_info *data, 276 u_int32_t len); 277static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 278 u_int32_t starts, u_int32_t startf, 279 u_int32_t endm, u_int32_t ends, 280 u_int32_t endf); 281static int cdplaytracks(struct cam_periph *periph, 282 u_int32_t strack, u_int32_t sindex, 283 u_int32_t etrack, u_int32_t eindex); 284static int cdpause(struct cam_periph *periph, u_int32_t go); 285static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 286static int cdstartunit(struct cam_periph *periph, int load); 287static int cdsetspeed(struct cam_periph *periph, 288 u_int32_t rdspeed, u_int32_t wrspeed); 289static int cdreportkey(struct cam_periph *periph, 290 struct dvd_authinfo *authinfo); 291static int cdsendkey(struct cam_periph *periph, 292 struct dvd_authinfo *authinfo); 293static int cdreaddvdstructure(struct cam_periph *periph, 294 struct dvd_struct *dvdstruct); 295static timeout_t cdmediapoll; 296 297static struct periph_driver cddriver = 298{ 299 cdinit, "cd", 300 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 301}; 302 303PERIPHDRIVER_DECLARE(cd, cddriver); 304 305#ifndef CD_DEFAULT_POLL_PERIOD 306#define CD_DEFAULT_POLL_PERIOD 3 307#endif 308#ifndef CD_DEFAULT_RETRY 309#define CD_DEFAULT_RETRY 4 310#endif 311#ifndef CD_DEFAULT_TIMEOUT 312#define CD_DEFAULT_TIMEOUT 30000 313#endif 314#ifndef CHANGER_MIN_BUSY_SECONDS 315#define CHANGER_MIN_BUSY_SECONDS 5 316#endif 317#ifndef CHANGER_MAX_BUSY_SECONDS 318#define CHANGER_MAX_BUSY_SECONDS 15 319#endif 320 321static int cd_poll_period = CD_DEFAULT_POLL_PERIOD; 322static int cd_retry_count = CD_DEFAULT_RETRY; 323static int cd_timeout = CD_DEFAULT_TIMEOUT; 324static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 325static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 326 327static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 328static SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, 329 "CD Changer"); 330SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RW, 331 &cd_poll_period, 0, "Media polling period in seconds"); 332TUNABLE_INT("kern.cam.cd.poll_period", &cd_poll_period); 333SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, 334 &cd_retry_count, 0, "Normal I/O retry count"); 335TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); 336SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RW, 337 &cd_timeout, 0, "Timeout, in us, for read operations"); 338TUNABLE_INT("kern.cam.cd.timeout", &cd_timeout); 339SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 340 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 341TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 342SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 343 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 344TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 345 346struct cdchanger { 347 path_id_t path_id; 348 target_id_t target_id; 349 int num_devices; 350 struct camq devq; 351 struct timeval start_time; 352 struct cd_softc *cur_device; 353 struct callout short_handle; 354 struct callout long_handle; 355 volatile cd_changer_flags flags; 356 STAILQ_ENTRY(cdchanger) changer_links; 357 STAILQ_HEAD(chdevlist, cd_softc) chluns; 358}; 359 360static struct mtx changerq_mtx; 361static STAILQ_HEAD(changerlist, cdchanger) changerq; 362static int num_changers; 363 364static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 365 366static void 367cdinit(void) 368{ 369 cam_status status; 370 371 mtx_init(&changerq_mtx, "cdchangerq", "SCSI CD Changer List", MTX_DEF); 372 STAILQ_INIT(&changerq); 373 374 /* 375 * Install a global async callback. This callback will 376 * receive async callbacks like "new device found". 377 */ 378 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 379 380 if (status != CAM_REQ_CMP) { 381 printf("cd: Failed to attach master async callback " 382 "due to status 0x%x!\n", status); 383 } 384} 385 386/* 387 * Callback from GEOM, called when it has finished cleaning up its 388 * resources. 389 */ 390static void 391cddiskgonecb(struct disk *dp) 392{ 393 struct cam_periph *periph; 394 395 periph = (struct cam_periph *)dp->d_drv1; 396 cam_periph_release(periph); 397} 398 399static void 400cdoninvalidate(struct cam_periph *periph) 401{ 402 struct cd_softc *softc; 403 404 softc = (struct cd_softc *)periph->softc; 405 406 /* 407 * De-register any async callbacks. 408 */ 409 xpt_register_async(0, cdasync, periph, periph->path); 410 411 softc->flags |= CD_FLAG_INVALID; 412 413 /* 414 * Return all queued I/O with ENXIO. 415 * XXX Handle any transactions queued to the card 416 * with XPT_ABORT_CCB. 417 */ 418 bioq_flush(&softc->bio_queue, NULL, ENXIO); 419 420 /* 421 * If this device is part of a changer, and it was scheduled 422 * to run, remove it from the run queue since we just nuked 423 * all of its scheduled I/O. 424 */ 425 if ((softc->flags & CD_FLAG_CHANGER) 426 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 427 camq_remove(&softc->changer->devq, softc->pinfo.index); 428 429 disk_gone(softc->disk); 430} 431 432static void 433cdcleanup(struct cam_periph *periph) 434{ 435 struct cd_softc *softc; 436 437 softc = (struct cd_softc *)periph->softc; 438 439 /* 440 * In the queued, non-active case, the device in question 441 * has already been removed from the changer run queue. Since this 442 * device is active, we need to de-activate it, and schedule 443 * another device to run. (if there is another one to run) 444 */ 445 if ((softc->flags & CD_FLAG_CHANGER) 446 && (softc->flags & CD_FLAG_ACTIVE)) { 447 448 /* 449 * The purpose of the short timeout is soley to determine 450 * whether the current device has finished or not. Well, 451 * since we're removing the active device, we know that it 452 * is finished. So, get rid of the short timeout. 453 * Otherwise, if we're in the time period before the short 454 * timeout fires, and there are no other devices in the 455 * queue to run, there won't be any other device put in the 456 * active slot. i.e., when we call cdrunchangerqueue() 457 * below, it won't do anything. Then, when the short 458 * timeout fires, it'll look at the "current device", which 459 * we are free below, and possibly panic the kernel on a 460 * bogus pointer reference. 461 * 462 * The long timeout doesn't really matter, since we 463 * decrement the qfrozen_cnt to indicate that there is 464 * nothing in the active slot now. Therefore, there won't 465 * be any bogus pointer references there. 466 */ 467 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 468 callout_stop(&softc->changer->short_handle); 469 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 470 } 471 softc->changer->devq.qfrozen_cnt--; 472 softc->changer->flags |= CHANGER_MANUAL_CALL; 473 cdrunchangerqueue(softc->changer); 474 } 475 476 /* 477 * If we're removing the last device on the changer, go ahead and 478 * remove the changer device structure. 479 */ 480 if ((softc->flags & CD_FLAG_CHANGER) 481 && (--softc->changer->num_devices == 0)) { 482 483 /* 484 * Theoretically, there shouldn't be any timeouts left, but 485 * I'm not completely sure that that will be the case. So, 486 * it won't hurt to check and see if there are any left. 487 */ 488 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 489 callout_stop(&softc->changer->long_handle); 490 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 491 } 492 493 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 494 callout_stop(&softc->changer->short_handle); 495 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 496 } 497 498 mtx_lock(&changerq_mtx); 499 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 500 changer_links); 501 num_changers--; 502 mtx_unlock(&changerq_mtx); 503 xpt_print(periph->path, "removing changer entry\n"); 504 free(softc->changer, M_DEVBUF); 505 } 506 cam_periph_unlock(periph); 507 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 508 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 509 xpt_print(periph->path, "can't remove sysctl context\n"); 510 } 511 512 callout_drain(&softc->mediapoll_c); 513 disk_destroy(softc->disk); 514 free(softc, M_DEVBUF); 515 cam_periph_lock(periph); 516} 517 518static void 519cdasync(void *callback_arg, u_int32_t code, 520 struct cam_path *path, void *arg) 521{ 522 struct cam_periph *periph; 523 struct cd_softc *softc; 524 525 periph = (struct cam_periph *)callback_arg; 526 switch (code) { 527 case AC_FOUND_DEVICE: 528 { 529 struct ccb_getdev *cgd; 530 cam_status status; 531 532 cgd = (struct ccb_getdev *)arg; 533 if (cgd == NULL) 534 break; 535 536 if (cgd->protocol != PROTO_SCSI) 537 break; 538 539 if (SID_TYPE(&cgd->inq_data) != T_CDROM 540 && SID_TYPE(&cgd->inq_data) != T_WORM) 541 break; 542 543 /* 544 * Allocate a peripheral instance for 545 * this device and start the probe 546 * process. 547 */ 548 status = cam_periph_alloc(cdregister, cdoninvalidate, 549 cdcleanup, cdstart, 550 "cd", CAM_PERIPH_BIO, 551 path, cdasync, 552 AC_FOUND_DEVICE, cgd); 553 554 if (status != CAM_REQ_CMP 555 && status != CAM_REQ_INPROG) 556 printf("cdasync: Unable to attach new device " 557 "due to status 0x%x\n", status); 558 559 break; 560 } 561 case AC_UNIT_ATTENTION: 562 { 563 union ccb *ccb; 564 int error_code, sense_key, asc, ascq; 565 566 softc = (struct cd_softc *)periph->softc; 567 ccb = (union ccb *)arg; 568 569 /* 570 * Handle all media change UNIT ATTENTIONs except 571 * our own, as they will be handled by cderror(). 572 */ 573 if (xpt_path_periph(ccb->ccb_h.path) != periph && 574 scsi_extract_sense_ccb(ccb, 575 &error_code, &sense_key, &asc, &ascq)) { 576 if (asc == 0x28 && ascq == 0x00) 577 disk_media_changed(softc->disk, M_NOWAIT); 578 } 579 cam_periph_async(periph, code, path, arg); 580 break; 581 } 582 case AC_SCSI_AEN: 583 softc = (struct cd_softc *)periph->softc; 584 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 585 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 586 softc->tur = 1; 587 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 588 } 589 } 590 /* FALLTHROUGH */ 591 case AC_SENT_BDR: 592 case AC_BUS_RESET: 593 { 594 struct ccb_hdr *ccbh; 595 596 softc = (struct cd_softc *)periph->softc; 597 /* 598 * Don't fail on the expected unit attention 599 * that will occur. 600 */ 601 softc->flags |= CD_FLAG_RETRY_UA; 602 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 603 ccbh->ccb_state |= CD_CCB_RETRY_UA; 604 /* FALLTHROUGH */ 605 } 606 default: 607 cam_periph_async(periph, code, path, arg); 608 break; 609 } 610} 611 612static void 613cdsysctlinit(void *context, int pending) 614{ 615 struct cam_periph *periph; 616 struct cd_softc *softc; 617 char tmpstr[80], tmpstr2[80]; 618 619 periph = (struct cam_periph *)context; 620 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 621 return; 622 623 softc = (struct cd_softc *)periph->softc; 624 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 625 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 626 627 sysctl_ctx_init(&softc->sysctl_ctx); 628 softc->flags |= CD_FLAG_SCTX_INIT; 629 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 630 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 631 tmpstr2, CTLFLAG_RD, 0, tmpstr); 632 633 if (softc->sysctl_tree == NULL) { 634 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 635 cam_periph_release(periph); 636 return; 637 } 638 639 /* 640 * Now register the sysctl handler, so the user can the value on 641 * the fly. 642 */ 643 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 644 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 645 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 646 "Minimum CDB size"); 647 648 cam_periph_release(periph); 649} 650 651/* 652 * We have a handler function for this so we can check the values when the 653 * user sets them, instead of every time we look at them. 654 */ 655static int 656cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 657{ 658 int error, value; 659 660 value = *(int *)arg1; 661 662 error = sysctl_handle_int(oidp, &value, 0, req); 663 664 if ((error != 0) 665 || (req->newptr == NULL)) 666 return (error); 667 668 /* 669 * The only real values we can have here are 6 or 10. I don't 670 * really forsee having 12 be an option at any time in the future. 671 * So if the user sets something less than or equal to 6, we'll set 672 * it to 6. If he sets something greater than 6, we'll set it to 10. 673 * 674 * I suppose we could just return an error here for the wrong values, 675 * but I don't think it's necessary to do so, as long as we can 676 * determine the user's intent without too much trouble. 677 */ 678 if (value < 6) 679 value = 6; 680 else if (value > 6) 681 value = 10; 682 683 *(int *)arg1 = value; 684 685 return (0); 686} 687 688static cam_status 689cdregister(struct cam_periph *periph, void *arg) 690{ 691 struct cd_softc *softc; 692 struct ccb_pathinq cpi; 693 struct ccb_getdev *cgd; 694 char tmpstr[80]; 695 caddr_t match; 696 697 cgd = (struct ccb_getdev *)arg; 698 if (cgd == NULL) { 699 printf("cdregister: no getdev CCB, can't register device\n"); 700 return(CAM_REQ_CMP_ERR); 701 } 702 703 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 704 M_NOWAIT | M_ZERO); 705 if (softc == NULL) { 706 printf("cdregister: Unable to probe new device. " 707 "Unable to allocate softc\n"); 708 return(CAM_REQ_CMP_ERR); 709 } 710 711 LIST_INIT(&softc->pending_ccbs); 712 STAILQ_INIT(&softc->mode_queue); 713 softc->state = CD_STATE_PROBE; 714 bioq_init(&softc->bio_queue); 715 if (SID_IS_REMOVABLE(&cgd->inq_data)) 716 softc->flags |= CD_FLAG_DISC_REMOVABLE; 717 718 periph->softc = softc; 719 softc->periph = periph; 720 721 /* 722 * See if this device has any quirks. 723 */ 724 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 725 (caddr_t)cd_quirk_table, 726 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 727 sizeof(*cd_quirk_table), scsi_inquiry_match); 728 729 if (match != NULL) 730 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 731 else 732 softc->quirks = CD_Q_NONE; 733 734 /* Check if the SIM does not want 6 byte commands */ 735 bzero(&cpi, sizeof(cpi)); 736 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 737 cpi.ccb_h.func_code = XPT_PATH_INQ; 738 xpt_action((union ccb *)&cpi); 739 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 740 softc->quirks |= CD_Q_10_BYTE_ONLY; 741 742 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 743 744 /* The default is 6 byte commands, unless quirked otherwise */ 745 if (softc->quirks & CD_Q_10_BYTE_ONLY) 746 softc->minimum_command_size = 10; 747 else 748 softc->minimum_command_size = 6; 749 750 /* 751 * Refcount and block open attempts until we are setup 752 * Can't block 753 */ 754 (void)cam_periph_hold(periph, PRIBIO); 755 cam_periph_unlock(periph); 756 /* 757 * Load the user's default, if any. 758 */ 759 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 760 periph->unit_number); 761 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 762 763 /* 6 and 10 are the only permissible values here. */ 764 if (softc->minimum_command_size < 6) 765 softc->minimum_command_size = 6; 766 else if (softc->minimum_command_size > 6) 767 softc->minimum_command_size = 10; 768 769 /* 770 * We need to register the statistics structure for this device, 771 * but we don't have the blocksize yet for it. So, we register 772 * the structure and indicate that we don't have the blocksize 773 * yet. Unlike other SCSI peripheral drivers, we explicitly set 774 * the device type here to be CDROM, rather than just ORing in 775 * the device type. This is because this driver can attach to either 776 * CDROM or WORM devices, and we want this peripheral driver to 777 * show up in the devstat list as a CD peripheral driver, not a 778 * WORM peripheral driver. WORM drives will also have the WORM 779 * driver attached to them. 780 */ 781 softc->disk = disk_alloc(); 782 softc->disk->d_devstat = devstat_new_entry("cd", 783 periph->unit_number, 0, 784 DEVSTAT_BS_UNAVAILABLE, 785 DEVSTAT_TYPE_CDROM | 786 XPORT_DEVSTAT_TYPE(cpi.transport), 787 DEVSTAT_PRIORITY_CD); 788 softc->disk->d_open = cdopen; 789 softc->disk->d_close = cdclose; 790 softc->disk->d_strategy = cdstrategy; 791 softc->disk->d_gone = cddiskgonecb; 792 softc->disk->d_ioctl = cdioctl; 793 softc->disk->d_name = "cd"; 794 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 795 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 796 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 797 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 798 cgd->inq_data.product, sizeof(cgd->inq_data.product), 799 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 800 softc->disk->d_unit = periph->unit_number; 801 softc->disk->d_drv1 = periph; 802 if (cpi.maxio == 0) 803 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 804 else if (cpi.maxio > MAXPHYS) 805 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 806 else 807 softc->disk->d_maxsize = cpi.maxio; 808 softc->disk->d_flags = 0; 809 softc->disk->d_hba_vendor = cpi.hba_vendor; 810 softc->disk->d_hba_device = cpi.hba_device; 811 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 812 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 813 814 /* 815 * Acquire a reference to the periph before we register with GEOM. 816 * We'll release this reference once GEOM calls us back (via 817 * dadiskgonecb()) telling us that our provider has been freed. 818 */ 819 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 820 xpt_print(periph->path, "%s: lost periph during " 821 "registration!\n", __func__); 822 cam_periph_lock(periph); 823 return (CAM_REQ_CMP_ERR); 824 } 825 826 disk_create(softc->disk, DISK_VERSION); 827 cam_periph_lock(periph); 828 829 /* 830 * Add an async callback so that we get 831 * notified if this device goes away. 832 */ 833 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 834 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 835 836 /* 837 * If the target lun is greater than 0, we most likely have a CD 838 * changer device. Check the quirk entries as well, though, just 839 * in case someone has a CD tower with one lun per drive or 840 * something like that. Also, if we know up front that a 841 * particular device is a changer, we can mark it as such starting 842 * with lun 0, instead of lun 1. It shouldn't be necessary to have 843 * a quirk entry to define something as a changer, however. 844 */ 845 if (((cgd->ccb_h.target_lun > 0) 846 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 847 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 848 struct cdchanger *nchanger; 849 struct cam_periph *nperiph; 850 struct cam_path *path; 851 cam_status status; 852 int found; 853 854 /* Set the changer flag in the current device's softc */ 855 softc->flags |= CD_FLAG_CHANGER; 856 857 /* 858 * Now, look around for an existing changer device with the 859 * same path and target ID as the current device. 860 */ 861 mtx_lock(&changerq_mtx); 862 for (found = 0, 863 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 864 nchanger != NULL; 865 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 866 if ((nchanger->path_id == cgd->ccb_h.path_id) 867 && (nchanger->target_id == cgd->ccb_h.target_id)) { 868 found = 1; 869 break; 870 } 871 } 872 mtx_unlock(&changerq_mtx); 873 874 /* 875 * If we found a matching entry, just add this device to 876 * the list of devices on this changer. 877 */ 878 if (found == 1) { 879 struct chdevlist *chlunhead; 880 881 chlunhead = &nchanger->chluns; 882 883 /* 884 * XXX KDM look at consolidating this code with the 885 * code below in a separate function. 886 */ 887 888 /* 889 * Create a path with lun id 0, and see if we can 890 * find a matching device 891 */ 892 status = xpt_create_path(&path, /*periph*/ periph, 893 cgd->ccb_h.path_id, 894 cgd->ccb_h.target_id, 0); 895 896 if ((status == CAM_REQ_CMP) 897 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 898 struct cd_softc *nsoftc; 899 900 nsoftc = (struct cd_softc *)nperiph->softc; 901 902 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 903 nsoftc->flags |= CD_FLAG_CHANGER; 904 nchanger->num_devices++; 905 if (camq_resize(&nchanger->devq, 906 nchanger->num_devices)!=CAM_REQ_CMP){ 907 printf("cdregister: " 908 "camq_resize " 909 "failed, changer " 910 "support may " 911 "be messed up\n"); 912 } 913 nsoftc->changer = nchanger; 914 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 915 916 STAILQ_INSERT_TAIL(&nchanger->chluns, 917 nsoftc,changer_links); 918 } 919 xpt_free_path(path); 920 } else if (status == CAM_REQ_CMP) 921 xpt_free_path(path); 922 else { 923 printf("cdregister: unable to allocate path\n" 924 "cdregister: changer support may be " 925 "broken\n"); 926 } 927 928 nchanger->num_devices++; 929 930 softc->changer = nchanger; 931 softc->pinfo.index = CAM_UNQUEUED_INDEX; 932 933 if (camq_resize(&nchanger->devq, 934 nchanger->num_devices) != CAM_REQ_CMP) { 935 printf("cdregister: camq_resize " 936 "failed, changer support may " 937 "be messed up\n"); 938 } 939 940 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 941 } 942 /* 943 * In this case, we don't already have an entry for this 944 * particular changer, so we need to create one, add it to 945 * the queue, and queue this device on the list for this 946 * changer. Before we queue this device, however, we need 947 * to search for lun id 0 on this target, and add it to the 948 * queue first, if it exists. (and if it hasn't already 949 * been marked as part of the changer.) 950 */ 951 else { 952 nchanger = malloc(sizeof(struct cdchanger), 953 M_DEVBUF, M_NOWAIT | M_ZERO); 954 if (nchanger == NULL) { 955 softc->flags &= ~CD_FLAG_CHANGER; 956 printf("cdregister: unable to malloc " 957 "changer structure\ncdregister: " 958 "changer support disabled\n"); 959 960 /* 961 * Yes, gotos can be gross but in this case 962 * I think it's justified.. 963 */ 964 goto cdregisterexit; 965 } 966 if (camq_init(&nchanger->devq, 1) != 0) { 967 softc->flags &= ~CD_FLAG_CHANGER; 968 printf("cdregister: changer support " 969 "disabled\n"); 970 goto cdregisterexit; 971 } 972 973 nchanger->path_id = cgd->ccb_h.path_id; 974 nchanger->target_id = cgd->ccb_h.target_id; 975 976 /* this is superfluous, but it makes things clearer */ 977 nchanger->num_devices = 0; 978 979 STAILQ_INIT(&nchanger->chluns); 980 981 callout_init_mtx(&nchanger->long_handle, 982 cam_periph_mtx(periph), 0); 983 callout_init_mtx(&nchanger->short_handle, 984 cam_periph_mtx(periph), 0); 985 986 mtx_lock(&changerq_mtx); 987 num_changers++; 988 STAILQ_INSERT_TAIL(&changerq, nchanger, 989 changer_links); 990 mtx_unlock(&changerq_mtx); 991 992 /* 993 * Create a path with lun id 0, and see if we can 994 * find a matching device 995 */ 996 status = xpt_create_path(&path, /*periph*/ periph, 997 cgd->ccb_h.path_id, 998 cgd->ccb_h.target_id, 0); 999 1000 /* 1001 * If we were able to allocate the path, and if we 1002 * find a matching device and it isn't already 1003 * marked as part of a changer, then we add it to 1004 * the current changer. 1005 */ 1006 if ((status == CAM_REQ_CMP) 1007 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1008 && ((((struct cd_softc *)periph->softc)->flags & 1009 CD_FLAG_CHANGER) == 0)) { 1010 struct cd_softc *nsoftc; 1011 1012 nsoftc = (struct cd_softc *)nperiph->softc; 1013 1014 nsoftc->flags |= CD_FLAG_CHANGER; 1015 nchanger->num_devices++; 1016 if (camq_resize(&nchanger->devq, 1017 nchanger->num_devices) != CAM_REQ_CMP) { 1018 printf("cdregister: camq_resize " 1019 "failed, changer support may " 1020 "be messed up\n"); 1021 } 1022 nsoftc->changer = nchanger; 1023 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1024 1025 STAILQ_INSERT_TAIL(&nchanger->chluns, 1026 nsoftc, changer_links); 1027 xpt_free_path(path); 1028 } else if (status == CAM_REQ_CMP) 1029 xpt_free_path(path); 1030 else { 1031 printf("cdregister: unable to allocate path\n" 1032 "cdregister: changer support may be " 1033 "broken\n"); 1034 } 1035 1036 softc->changer = nchanger; 1037 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1038 nchanger->num_devices++; 1039 if (camq_resize(&nchanger->devq, 1040 nchanger->num_devices) != CAM_REQ_CMP) { 1041 printf("cdregister: camq_resize " 1042 "failed, changer support may " 1043 "be messed up\n"); 1044 } 1045 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1046 changer_links); 1047 } 1048 } 1049 1050 /* 1051 * Schedule a periodic media polling events. 1052 */ 1053 callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0); 1054 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1055 (softc->flags & CD_FLAG_CHANGER) == 0 && 1056 (cgd->inq_flags & SID_AEN) == 0 && 1057 cd_poll_period != 0) 1058 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1059 cdmediapoll, periph); 1060 1061cdregisterexit: 1062 1063 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1064 xpt_schedule(periph, CAM_PRIORITY_DEV); 1065 else 1066 cdschedule(periph, CAM_PRIORITY_DEV); 1067 1068 return(CAM_REQ_CMP); 1069} 1070 1071static int 1072cdopen(struct disk *dp) 1073{ 1074 struct cam_periph *periph; 1075 struct cd_softc *softc; 1076 int error; 1077 1078 periph = (struct cam_periph *)dp->d_drv1; 1079 softc = (struct cd_softc *)periph->softc; 1080 1081 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1082 return(ENXIO); 1083 1084 cam_periph_lock(periph); 1085 1086 if (softc->flags & CD_FLAG_INVALID) { 1087 cam_periph_release_locked(periph); 1088 cam_periph_unlock(periph); 1089 return(ENXIO); 1090 } 1091 1092 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1093 cam_periph_release_locked(periph); 1094 cam_periph_unlock(periph); 1095 return (error); 1096 } 1097 1098 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1099 ("cdopen\n")); 1100 1101 /* 1102 * Check for media, and set the appropriate flags. We don't bail 1103 * if we don't have media, but then we don't allow anything but the 1104 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1105 */ 1106 cdcheckmedia(periph); 1107 1108 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1109 cam_periph_unhold(periph); 1110 1111 cam_periph_unlock(periph); 1112 1113 return (0); 1114} 1115 1116static int 1117cdclose(struct disk *dp) 1118{ 1119 struct cam_periph *periph; 1120 struct cd_softc *softc; 1121 1122 periph = (struct cam_periph *)dp->d_drv1; 1123 softc = (struct cd_softc *)periph->softc; 1124 1125 cam_periph_lock(periph); 1126 if (cam_periph_hold(periph, PRIBIO) != 0) { 1127 cam_periph_unlock(periph); 1128 cam_periph_release(periph); 1129 return (0); 1130 } 1131 1132 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1133 ("cdclose\n")); 1134 1135 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1136 cdprevent(periph, PR_ALLOW); 1137 1138 /* 1139 * Since we're closing this CD, mark the blocksize as unavailable. 1140 * It will be marked as available when the CD is opened again. 1141 */ 1142 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1143 1144 /* 1145 * We'll check the media and toc again at the next open(). 1146 */ 1147 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1148 1149 cam_periph_unhold(periph); 1150 cam_periph_release_locked(periph); 1151 cam_periph_unlock(periph); 1152 1153 return (0); 1154} 1155 1156static void 1157cdshorttimeout(void *arg) 1158{ 1159 struct cdchanger *changer; 1160 1161 changer = (struct cdchanger *)arg; 1162 1163 /* Always clear the short timeout flag, since that's what we're in */ 1164 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1165 1166 /* 1167 * Check to see if there is any more pending or outstanding I/O for 1168 * this device. If not, move it out of the active slot. 1169 */ 1170 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1171 && (changer->cur_device->outstanding_cmds == 0)) { 1172 changer->flags |= CHANGER_MANUAL_CALL; 1173 cdrunchangerqueue(changer); 1174 } 1175} 1176 1177/* 1178 * This is a wrapper for xpt_schedule. It only applies to changers. 1179 */ 1180static void 1181cdschedule(struct cam_periph *periph, int priority) 1182{ 1183 struct cd_softc *softc; 1184 1185 softc = (struct cd_softc *)periph->softc; 1186 1187 /* 1188 * If this device isn't currently queued, and if it isn't 1189 * the active device, then we queue this device and run the 1190 * changer queue if there is no timeout scheduled to do it. 1191 * If this device is the active device, just schedule it 1192 * to run again. If this device is queued, there should be 1193 * a timeout in place already that will make sure it runs. 1194 */ 1195 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1196 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1197 /* 1198 * We don't do anything with the priority here. 1199 * This is strictly a fifo queue. 1200 */ 1201 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1202 softc->pinfo.generation = ++softc->changer->devq.generation; 1203 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1204 1205 /* 1206 * Since we just put a device in the changer queue, 1207 * check and see if there is a timeout scheduled for 1208 * this changer. If so, let the timeout handle 1209 * switching this device into the active slot. If 1210 * not, manually call the timeout routine to 1211 * bootstrap things. 1212 */ 1213 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1214 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1215 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1216 softc->changer->flags |= CHANGER_MANUAL_CALL; 1217 cdrunchangerqueue(softc->changer); 1218 } 1219 } else if ((softc->flags & CD_FLAG_ACTIVE) 1220 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1221 xpt_schedule(periph, priority); 1222} 1223 1224static void 1225cdrunchangerqueue(void *arg) 1226{ 1227 struct cd_softc *softc; 1228 struct cdchanger *changer; 1229 int called_from_timeout; 1230 1231 changer = (struct cdchanger *)arg; 1232 1233 /* 1234 * If we have NOT been called from cdstrategy() or cddone(), and 1235 * instead from a timeout routine, go ahead and clear the 1236 * timeout flag. 1237 */ 1238 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1239 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1240 called_from_timeout = 1; 1241 } else 1242 called_from_timeout = 0; 1243 1244 /* Always clear the manual call flag */ 1245 changer->flags &= ~CHANGER_MANUAL_CALL; 1246 1247 /* nothing to do if the queue is empty */ 1248 if (changer->devq.entries <= 0) { 1249 return; 1250 } 1251 1252 /* 1253 * If the changer queue is frozen, that means we have an active 1254 * device. 1255 */ 1256 if (changer->devq.qfrozen_cnt > 0) { 1257 1258 /* 1259 * We always need to reset the frozen count and clear the 1260 * active flag. 1261 */ 1262 changer->devq.qfrozen_cnt--; 1263 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1264 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1265 1266 if (changer->cur_device->outstanding_cmds > 0) { 1267 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1268 changer->cur_device->bufs_left = 1269 changer->cur_device->outstanding_cmds; 1270 if (called_from_timeout) { 1271 callout_reset(&changer->long_handle, 1272 changer_max_busy_seconds * hz, 1273 cdrunchangerqueue, changer); 1274 changer->flags |= CHANGER_TIMEOUT_SCHED; 1275 } 1276 return; 1277 } 1278 1279 /* 1280 * Check to see whether the current device has any I/O left 1281 * to do. If so, requeue it at the end of the queue. If 1282 * not, there is no need to requeue it. 1283 */ 1284 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1285 1286 changer->cur_device->pinfo.generation = 1287 ++changer->devq.generation; 1288 camq_insert(&changer->devq, 1289 (cam_pinfo *)changer->cur_device); 1290 } 1291 } 1292 1293 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1294 1295 changer->cur_device = softc; 1296 1297 changer->devq.qfrozen_cnt++; 1298 softc->flags |= CD_FLAG_ACTIVE; 1299 1300 /* Just in case this device is waiting */ 1301 wakeup(&softc->changer); 1302 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1303 1304 /* 1305 * Get rid of any pending timeouts, and set a flag to schedule new 1306 * ones so this device gets its full time quantum. 1307 */ 1308 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1309 callout_stop(&changer->long_handle); 1310 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1311 } 1312 1313 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1314 callout_stop(&changer->short_handle); 1315 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1316 } 1317 1318 /* 1319 * We need to schedule timeouts, but we only do this after the 1320 * first transaction has completed. This eliminates the changer 1321 * switch time. 1322 */ 1323 changer->flags |= CHANGER_NEED_TIMEOUT; 1324} 1325 1326static void 1327cdchangerschedule(struct cd_softc *softc) 1328{ 1329 struct cdchanger *changer; 1330 1331 changer = softc->changer; 1332 1333 /* 1334 * If this is a changer, and this is the current device, 1335 * and this device has at least the minimum time quantum to 1336 * run, see if we can switch it out. 1337 */ 1338 if ((softc->flags & CD_FLAG_ACTIVE) 1339 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1340 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1341 /* 1342 * We try three things here. The first is that we 1343 * check to see whether the schedule on completion 1344 * flag is set. If it is, we decrement the number 1345 * of buffers left, and if it's zero, we reschedule. 1346 * Next, we check to see whether the pending buffer 1347 * queue is empty and whether there are no 1348 * outstanding transactions. If so, we reschedule. 1349 * Next, we see if the pending buffer queue is empty. 1350 * If it is, we set the number of buffers left to 1351 * the current active buffer count and set the 1352 * schedule on complete flag. 1353 */ 1354 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1355 if (--softc->bufs_left == 0) { 1356 softc->changer->flags |= 1357 CHANGER_MANUAL_CALL; 1358 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1359 cdrunchangerqueue(softc->changer); 1360 } 1361 } else if ((bioq_first(&softc->bio_queue) == NULL) 1362 && (softc->outstanding_cmds == 0)) { 1363 softc->changer->flags |= CHANGER_MANUAL_CALL; 1364 cdrunchangerqueue(softc->changer); 1365 } 1366 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1367 && (softc->flags & CD_FLAG_ACTIVE)) { 1368 1369 /* 1370 * Now that the first transaction to this 1371 * particular device has completed, we can go ahead 1372 * and schedule our timeouts. 1373 */ 1374 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1375 callout_reset(&changer->long_handle, 1376 changer_max_busy_seconds * hz, 1377 cdrunchangerqueue, changer); 1378 changer->flags |= CHANGER_TIMEOUT_SCHED; 1379 } else 1380 printf("cdchangerschedule: already have a long" 1381 " timeout!\n"); 1382 1383 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1384 callout_reset(&changer->short_handle, 1385 changer_min_busy_seconds * hz, 1386 cdshorttimeout, changer); 1387 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1388 } else 1389 printf("cdchangerschedule: already have a short " 1390 "timeout!\n"); 1391 1392 /* 1393 * We just scheduled timeouts, no need to schedule 1394 * more. 1395 */ 1396 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1397 1398 } 1399} 1400 1401static int 1402cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1403 u_int32_t cam_flags, 1404 u_int32_t sense_flags), 1405 u_int32_t cam_flags, u_int32_t sense_flags) 1406{ 1407 struct cd_softc *softc; 1408 struct cam_periph *periph; 1409 int error; 1410 1411 periph = xpt_path_periph(ccb->ccb_h.path); 1412 softc = (struct cd_softc *)periph->softc; 1413 1414 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1415 softc->disk->d_devstat); 1416 1417 if (softc->flags & CD_FLAG_CHANGER) 1418 cdchangerschedule(softc); 1419 1420 return(error); 1421} 1422 1423static union ccb * 1424cdgetccb(struct cam_periph *periph, u_int32_t priority) 1425{ 1426 struct cd_softc *softc; 1427 1428 softc = (struct cd_softc *)periph->softc; 1429 1430 if (softc->flags & CD_FLAG_CHANGER) { 1431 /* 1432 * This should work the first time this device is woken up, 1433 * but just in case it doesn't, we use a while loop. 1434 */ 1435 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1436 /* 1437 * If this changer isn't already queued, queue it up. 1438 */ 1439 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1440 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1441 softc->pinfo.generation = 1442 ++softc->changer->devq.generation; 1443 camq_insert(&softc->changer->devq, 1444 (cam_pinfo *)softc); 1445 } 1446 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1447 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1448 && ((softc->changer->flags 1449 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1450 softc->changer->flags |= CHANGER_MANUAL_CALL; 1451 cdrunchangerqueue(softc->changer); 1452 } else 1453 cam_periph_sleep(periph, &softc->changer, 1454 PRIBIO, "cgticb", 0); 1455 } 1456 } 1457 return(cam_periph_getccb(periph, priority)); 1458} 1459 1460 1461/* 1462 * Actually translate the requested transfer into one the physical driver 1463 * can understand. The transfer is described by a buf and will include 1464 * only one physical transfer. 1465 */ 1466static void 1467cdstrategy(struct bio *bp) 1468{ 1469 struct cam_periph *periph; 1470 struct cd_softc *softc; 1471 1472 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1473 cam_periph_lock(periph); 1474 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1475 ("cdstrategy(%p)\n", bp)); 1476 1477 softc = (struct cd_softc *)periph->softc; 1478 1479 /* 1480 * If the device has been made invalid, error out 1481 */ 1482 if ((softc->flags & CD_FLAG_INVALID)) { 1483 cam_periph_unlock(periph); 1484 biofinish(bp, NULL, ENXIO); 1485 return; 1486 } 1487 1488 /* 1489 * If we don't have valid media, look for it before trying to 1490 * schedule the I/O. 1491 */ 1492 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1493 int error; 1494 1495 error = cdcheckmedia(periph); 1496 if (error != 0) { 1497 cam_periph_unlock(periph); 1498 biofinish(bp, NULL, error); 1499 return; 1500 } 1501 } 1502 1503 /* 1504 * Place it in the queue of disk activities for this disk 1505 */ 1506 bioq_disksort(&softc->bio_queue, bp); 1507 1508 /* 1509 * Schedule ourselves for performing the work. We do things 1510 * differently for changers. 1511 */ 1512 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1513 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1514 else 1515 cdschedule(periph, CAM_PRIORITY_NORMAL); 1516 1517 cam_periph_unlock(periph); 1518 return; 1519} 1520 1521static void 1522cdstart(struct cam_periph *periph, union ccb *start_ccb) 1523{ 1524 struct cd_softc *softc; 1525 struct bio *bp; 1526 struct ccb_scsiio *csio; 1527 struct scsi_read_capacity_data *rcap; 1528 1529 softc = (struct cd_softc *)periph->softc; 1530 1531 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1532 1533 switch (softc->state) { 1534 case CD_STATE_NORMAL: 1535 { 1536 bp = bioq_first(&softc->bio_queue); 1537 if (bp == NULL) { 1538 if (softc->tur) { 1539 softc->tur = 0; 1540 csio = &start_ccb->csio; 1541 scsi_test_unit_ready(csio, 1542 /*retries*/ cd_retry_count, 1543 cddone, 1544 MSG_SIMPLE_Q_TAG, 1545 SSD_FULL_SIZE, 1546 cd_timeout); 1547 start_ccb->ccb_h.ccb_bp = NULL; 1548 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1549 xpt_action(start_ccb); 1550 } else 1551 xpt_release_ccb(start_ccb); 1552 } else { 1553 if (softc->tur) { 1554 softc->tur = 0; 1555 cam_periph_release_locked(periph); 1556 } 1557 bioq_remove(&softc->bio_queue, bp); 1558 1559 scsi_read_write(&start_ccb->csio, 1560 /*retries*/ cd_retry_count, 1561 /* cbfcnp */ cddone, 1562 MSG_SIMPLE_Q_TAG, 1563 /* read */bp->bio_cmd == BIO_READ ? 1564 SCSI_RW_READ : SCSI_RW_WRITE, 1565 /* byte2 */ 0, 1566 /* minimum_cmd_size */ 10, 1567 /* lba */ bp->bio_offset / 1568 softc->params.blksize, 1569 bp->bio_bcount / softc->params.blksize, 1570 /* data_ptr */ bp->bio_data, 1571 /* dxfer_len */ bp->bio_bcount, 1572 /* sense_len */ cd_retry_count ? 1573 SSD_FULL_SIZE : SF_NO_PRINT, 1574 /* timeout */ cd_timeout); 1575 /* Use READ CD command for audio tracks. */ 1576 if (softc->params.blksize == 2352) { 1577 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1578 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1579 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1580 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1581 start_ccb->csio.cdb_len = 12; 1582 } 1583 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1584 1585 1586 LIST_INSERT_HEAD(&softc->pending_ccbs, 1587 &start_ccb->ccb_h, periph_links.le); 1588 softc->outstanding_cmds++; 1589 1590 /* We expect a unit attention from this device */ 1591 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1592 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1593 softc->flags &= ~CD_FLAG_RETRY_UA; 1594 } 1595 1596 start_ccb->ccb_h.ccb_bp = bp; 1597 bp = bioq_first(&softc->bio_queue); 1598 1599 xpt_action(start_ccb); 1600 } 1601 if (bp != NULL || softc->tur) { 1602 /* Have more work to do, so ensure we stay scheduled */ 1603 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1604 } 1605 break; 1606 } 1607 case CD_STATE_PROBE: 1608 { 1609 1610 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1611 M_SCSICD, M_NOWAIT | M_ZERO); 1612 if (rcap == NULL) { 1613 xpt_print(periph->path, 1614 "cdstart: Couldn't malloc read_capacity data\n"); 1615 /* cd_free_periph??? */ 1616 break; 1617 } 1618 csio = &start_ccb->csio; 1619 scsi_read_capacity(csio, 1620 /*retries*/ cd_retry_count, 1621 cddone, 1622 MSG_SIMPLE_Q_TAG, 1623 rcap, 1624 SSD_FULL_SIZE, 1625 /*timeout*/20000); 1626 start_ccb->ccb_h.ccb_bp = NULL; 1627 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1628 xpt_action(start_ccb); 1629 break; 1630 } 1631 } 1632} 1633 1634static void 1635cddone(struct cam_periph *periph, union ccb *done_ccb) 1636{ 1637 struct cd_softc *softc; 1638 struct ccb_scsiio *csio; 1639 1640 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1641 1642 softc = (struct cd_softc *)periph->softc; 1643 csio = &done_ccb->csio; 1644 1645 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1646 case CD_CCB_BUFFER_IO: 1647 { 1648 struct bio *bp; 1649 int error; 1650 1651 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1652 error = 0; 1653 1654 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1655 int sf; 1656 1657 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1658 sf = SF_RETRY_UA; 1659 else 1660 sf = 0; 1661 1662 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1663 if (error == ERESTART) { 1664 /* 1665 * A retry was scheuled, so 1666 * just return. 1667 */ 1668 return; 1669 } 1670 } 1671 1672 if (error != 0) { 1673 xpt_print(periph->path, 1674 "cddone: got error %#x back\n", error); 1675 bioq_flush(&softc->bio_queue, NULL, EIO); 1676 bp->bio_resid = bp->bio_bcount; 1677 bp->bio_error = error; 1678 bp->bio_flags |= BIO_ERROR; 1679 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1680 cam_release_devq(done_ccb->ccb_h.path, 1681 /*relsim_flags*/0, 1682 /*reduction*/0, 1683 /*timeout*/0, 1684 /*getcount_only*/0); 1685 1686 } else { 1687 bp->bio_resid = csio->resid; 1688 bp->bio_error = 0; 1689 if (bp->bio_resid != 0) { 1690 /* 1691 * Short transfer ??? 1692 * XXX: not sure this is correct for partial 1693 * transfers at EOM 1694 */ 1695 bp->bio_flags |= BIO_ERROR; 1696 } 1697 } 1698 1699 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1700 softc->outstanding_cmds--; 1701 1702 if (softc->flags & CD_FLAG_CHANGER) 1703 cdchangerschedule(softc); 1704 1705 biofinish(bp, NULL, 0); 1706 break; 1707 } 1708 case CD_CCB_PROBE: 1709 { 1710 struct scsi_read_capacity_data *rdcap; 1711 char announce_buf[120]; /* 1712 * Currently (9/30/97) the 1713 * longest possible announce 1714 * buffer is 108 bytes, for the 1715 * first error case below. 1716 * That is 39 bytes for the 1717 * basic string, 16 bytes for the 1718 * biggest sense key (hardware 1719 * error), 52 bytes for the 1720 * text of the largest sense 1721 * qualifier valid for a CDROM, 1722 * (0x72, 0x03 or 0x04, 1723 * 0x03), and one byte for the 1724 * null terminating character. 1725 * To allow for longer strings, 1726 * the announce buffer is 120 1727 * bytes. 1728 */ 1729 struct cd_params *cdp; 1730 int error; 1731 1732 cdp = &softc->params; 1733 1734 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1735 1736 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1737 cdp->blksize = scsi_4btoul (rdcap->length); 1738 1739 /* 1740 * Retry any UNIT ATTENTION type errors. They 1741 * are expected at boot. 1742 */ 1743 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1744 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1745 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1746 1747 snprintf(announce_buf, sizeof(announce_buf), 1748 "cd present [%lu x %lu byte records]", 1749 cdp->disksize, (u_long)cdp->blksize); 1750 1751 } else { 1752 if (error == ERESTART) { 1753 /* 1754 * A retry was scheuled, so 1755 * just return. 1756 */ 1757 return; 1758 } else { 1759 int asc, ascq; 1760 int sense_key, error_code; 1761 int have_sense; 1762 cam_status status; 1763 struct ccb_getdev cgd; 1764 1765 /* Don't wedge this device's queue */ 1766 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1767 cam_release_devq(done_ccb->ccb_h.path, 1768 /*relsim_flags*/0, 1769 /*reduction*/0, 1770 /*timeout*/0, 1771 /*getcount_only*/0); 1772 1773 status = done_ccb->ccb_h.status; 1774 1775 xpt_setup_ccb(&cgd.ccb_h, 1776 done_ccb->ccb_h.path, 1777 CAM_PRIORITY_NORMAL); 1778 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1779 xpt_action((union ccb *)&cgd); 1780 1781 if (scsi_extract_sense_ccb(done_ccb, 1782 &error_code, &sense_key, &asc, &ascq)) 1783 have_sense = TRUE; 1784 else 1785 have_sense = FALSE; 1786 1787 /* 1788 * Attach to anything that claims to be a 1789 * CDROM or WORM device, as long as it 1790 * doesn't return a "Logical unit not 1791 * supported" (0x25) error. 1792 */ 1793 if ((have_sense) && (asc != 0x25) 1794 && (error_code == SSD_CURRENT_ERROR)) { 1795 const char *sense_key_desc; 1796 const char *asc_desc; 1797 1798 scsi_sense_desc(sense_key, asc, ascq, 1799 &cgd.inq_data, 1800 &sense_key_desc, 1801 &asc_desc); 1802 snprintf(announce_buf, 1803 sizeof(announce_buf), 1804 "Attempt to query device " 1805 "size failed: %s, %s", 1806 sense_key_desc, 1807 asc_desc); 1808 } else if ((have_sense == 0) 1809 && ((status & CAM_STATUS_MASK) == 1810 CAM_SCSI_STATUS_ERROR) 1811 && (csio->scsi_status == 1812 SCSI_STATUS_BUSY)) { 1813 snprintf(announce_buf, 1814 sizeof(announce_buf), 1815 "Attempt to query device " 1816 "size failed: SCSI Status: %s", 1817 scsi_status_string(csio)); 1818 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1819 /* 1820 * We only print out an error for 1821 * CDROM type devices. For WORM 1822 * devices, we don't print out an 1823 * error since a few WORM devices 1824 * don't support CDROM commands. 1825 * If we have sense information, go 1826 * ahead and print it out. 1827 * Otherwise, just say that we 1828 * couldn't attach. 1829 */ 1830 1831 /* 1832 * Just print out the error, not 1833 * the full probe message, when we 1834 * don't attach. 1835 */ 1836 if (have_sense) 1837 scsi_sense_print( 1838 &done_ccb->csio); 1839 else { 1840 xpt_print(periph->path, 1841 "got CAM status %#x\n", 1842 done_ccb->ccb_h.status); 1843 } 1844 xpt_print(periph->path, "fatal error, " 1845 "failed to attach to device\n"); 1846 /* 1847 * Invalidate this peripheral. 1848 */ 1849 cam_periph_invalidate(periph); 1850 1851 announce_buf[0] = '\0'; 1852 } else { 1853 1854 /* 1855 * Invalidate this peripheral. 1856 */ 1857 cam_periph_invalidate(periph); 1858 announce_buf[0] = '\0'; 1859 } 1860 } 1861 } 1862 free(rdcap, M_SCSICD); 1863 if (announce_buf[0] != '\0') { 1864 xpt_announce_periph(periph, announce_buf); 1865 xpt_announce_quirks(periph, softc->quirks, 1866 CD_Q_BIT_STRING); 1867 if (softc->flags & CD_FLAG_CHANGER) 1868 cdchangerschedule(softc); 1869 /* 1870 * Create our sysctl variables, now that we know 1871 * we have successfully attached. 1872 */ 1873 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1874 } 1875 softc->state = CD_STATE_NORMAL; 1876 /* 1877 * Since our peripheral may be invalidated by an error 1878 * above or an external event, we must release our CCB 1879 * before releasing the probe lock on the peripheral. 1880 * The peripheral will only go away once the last lock 1881 * is removed, and we need it around for the CCB release 1882 * operation. 1883 */ 1884 xpt_release_ccb(done_ccb); 1885 cam_periph_unhold(periph); 1886 return; 1887 } 1888 case CD_CCB_TUR: 1889 { 1890 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1891 1892 if (cderror(done_ccb, CAM_RETRY_SELTO, 1893 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1894 ERESTART) 1895 return; 1896 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1897 cam_release_devq(done_ccb->ccb_h.path, 1898 /*relsim_flags*/0, 1899 /*reduction*/0, 1900 /*timeout*/0, 1901 /*getcount_only*/0); 1902 } 1903 xpt_release_ccb(done_ccb); 1904 cam_periph_release_locked(periph); 1905 return; 1906 } 1907 default: 1908 break; 1909 } 1910 xpt_release_ccb(done_ccb); 1911} 1912 1913static union cd_pages * 1914cdgetpage(struct cd_mode_params *mode_params) 1915{ 1916 union cd_pages *page; 1917 1918 if (mode_params->cdb_size == 10) 1919 page = (union cd_pages *)find_mode_page_10( 1920 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1921 else 1922 page = (union cd_pages *)find_mode_page_6( 1923 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1924 1925 return (page); 1926} 1927 1928static int 1929cdgetpagesize(int page_num) 1930{ 1931 int i; 1932 1933 for (i = 0; i < (sizeof(cd_page_size_table)/ 1934 sizeof(cd_page_size_table[0])); i++) { 1935 if (cd_page_size_table[i].page == page_num) 1936 return (cd_page_size_table[i].page_size); 1937 } 1938 1939 return (-1); 1940} 1941 1942static int 1943cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1944{ 1945 1946 struct cam_periph *periph; 1947 struct cd_softc *softc; 1948 int nocopyout, error = 0; 1949 1950 periph = (struct cam_periph *)dp->d_drv1; 1951 cam_periph_lock(periph); 1952 1953 softc = (struct cd_softc *)periph->softc; 1954 1955 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1956 ("cdioctl(%#lx)\n", cmd)); 1957 1958 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1959 cam_periph_unlock(periph); 1960 cam_periph_release(periph); 1961 return (error); 1962 } 1963 1964 /* 1965 * If we don't have media loaded, check for it. If still don't 1966 * have media loaded, we can only do a load or eject. 1967 * 1968 * We only care whether media is loaded if this is a cd-specific ioctl 1969 * (thus the IOCGROUP check below). Note that this will break if 1970 * anyone adds any ioctls into the switch statement below that don't 1971 * have their ioctl group set to 'c'. 1972 */ 1973 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1974 && ((cmd != CDIOCCLOSE) 1975 && (cmd != CDIOCEJECT)) 1976 && (IOCGROUP(cmd) == 'c')) { 1977 error = cdcheckmedia(periph); 1978 if (error != 0) { 1979 cam_periph_unhold(periph); 1980 cam_periph_unlock(periph); 1981 return (error); 1982 } 1983 } 1984 /* 1985 * Drop the lock here so later mallocs can use WAITOK. The periph 1986 * is essentially locked still with the cam_periph_hold call above. 1987 */ 1988 cam_periph_unlock(periph); 1989 1990 nocopyout = 0; 1991 switch (cmd) { 1992 1993 case CDIOCPLAYTRACKS: 1994 { 1995 struct ioc_play_track *args 1996 = (struct ioc_play_track *) addr; 1997 struct cd_mode_params params; 1998 union cd_pages *page; 1999 2000 params.alloc_len = sizeof(union cd_mode_data_6_10); 2001 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2002 M_WAITOK | M_ZERO); 2003 2004 cam_periph_lock(periph); 2005 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2006 ("trying to do CDIOCPLAYTRACKS\n")); 2007 2008 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2009 if (error) { 2010 free(params.mode_buf, M_SCSICD); 2011 cam_periph_unlock(periph); 2012 break; 2013 } 2014 page = cdgetpage(¶ms); 2015 2016 page->audio.flags &= ~CD_PA_SOTC; 2017 page->audio.flags |= CD_PA_IMMED; 2018 error = cdsetmode(periph, ¶ms); 2019 free(params.mode_buf, M_SCSICD); 2020 if (error) { 2021 cam_periph_unlock(periph); 2022 break; 2023 } 2024 2025 /* 2026 * This was originally implemented with the PLAY 2027 * AUDIO TRACK INDEX command, but that command was 2028 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2029 * drives support it but ATAPI and ATAPI-derivative 2030 * drives don't seem to support it. So we keep a 2031 * cache of the table of contents and translate 2032 * track numbers to MSF format. 2033 */ 2034 if (softc->flags & CD_FLAG_VALID_TOC) { 2035 union msf_lba *sentry, *eentry; 2036 int st, et; 2037 2038 if (args->end_track < 2039 softc->toc.header.ending_track + 1) 2040 args->end_track++; 2041 if (args->end_track > 2042 softc->toc.header.ending_track + 1) 2043 args->end_track = 2044 softc->toc.header.ending_track + 1; 2045 st = args->start_track - 2046 softc->toc.header.starting_track; 2047 et = args->end_track - 2048 softc->toc.header.starting_track; 2049 if ((st < 0) 2050 || (et < 0) 2051 || (st > (softc->toc.header.ending_track - 2052 softc->toc.header.starting_track))) { 2053 error = EINVAL; 2054 cam_periph_unlock(periph); 2055 break; 2056 } 2057 sentry = &softc->toc.entries[st].addr; 2058 eentry = &softc->toc.entries[et].addr; 2059 error = cdplaymsf(periph, 2060 sentry->msf.minute, 2061 sentry->msf.second, 2062 sentry->msf.frame, 2063 eentry->msf.minute, 2064 eentry->msf.second, 2065 eentry->msf.frame); 2066 } else { 2067 /* 2068 * If we don't have a valid TOC, try the 2069 * play track index command. It is part of 2070 * the SCSI-2 spec, but was removed in the 2071 * MMC specs. ATAPI and ATAPI-derived 2072 * drives don't support it. 2073 */ 2074 if (softc->quirks & CD_Q_BCD_TRACKS) { 2075 args->start_track = 2076 bin2bcd(args->start_track); 2077 args->end_track = 2078 bin2bcd(args->end_track); 2079 } 2080 error = cdplaytracks(periph, 2081 args->start_track, 2082 args->start_index, 2083 args->end_track, 2084 args->end_index); 2085 } 2086 cam_periph_unlock(periph); 2087 } 2088 break; 2089 case CDIOCPLAYMSF: 2090 { 2091 struct ioc_play_msf *args 2092 = (struct ioc_play_msf *) addr; 2093 struct cd_mode_params params; 2094 union cd_pages *page; 2095 2096 params.alloc_len = sizeof(union cd_mode_data_6_10); 2097 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2098 M_WAITOK | M_ZERO); 2099 2100 cam_periph_lock(periph); 2101 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2102 ("trying to do CDIOCPLAYMSF\n")); 2103 2104 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2105 if (error) { 2106 free(params.mode_buf, M_SCSICD); 2107 cam_periph_unlock(periph); 2108 break; 2109 } 2110 page = cdgetpage(¶ms); 2111 2112 page->audio.flags &= ~CD_PA_SOTC; 2113 page->audio.flags |= CD_PA_IMMED; 2114 error = cdsetmode(periph, ¶ms); 2115 free(params.mode_buf, M_SCSICD); 2116 if (error) { 2117 cam_periph_unlock(periph); 2118 break; 2119 } 2120 error = cdplaymsf(periph, 2121 args->start_m, 2122 args->start_s, 2123 args->start_f, 2124 args->end_m, 2125 args->end_s, 2126 args->end_f); 2127 cam_periph_unlock(periph); 2128 } 2129 break; 2130 case CDIOCPLAYBLOCKS: 2131 { 2132 struct ioc_play_blocks *args 2133 = (struct ioc_play_blocks *) addr; 2134 struct cd_mode_params params; 2135 union cd_pages *page; 2136 2137 params.alloc_len = sizeof(union cd_mode_data_6_10); 2138 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2139 M_WAITOK | M_ZERO); 2140 2141 cam_periph_lock(periph); 2142 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2143 ("trying to do CDIOCPLAYBLOCKS\n")); 2144 2145 2146 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2147 if (error) { 2148 free(params.mode_buf, M_SCSICD); 2149 cam_periph_unlock(periph); 2150 break; 2151 } 2152 page = cdgetpage(¶ms); 2153 2154 page->audio.flags &= ~CD_PA_SOTC; 2155 page->audio.flags |= CD_PA_IMMED; 2156 error = cdsetmode(periph, ¶ms); 2157 free(params.mode_buf, M_SCSICD); 2158 if (error) { 2159 cam_periph_unlock(periph); 2160 break; 2161 } 2162 error = cdplay(periph, args->blk, args->len); 2163 cam_periph_unlock(periph); 2164 } 2165 break; 2166 case CDIOCREADSUBCHANNEL_SYSSPACE: 2167 nocopyout = 1; 2168 /* Fallthrough */ 2169 case CDIOCREADSUBCHANNEL: 2170 { 2171 struct ioc_read_subchannel *args 2172 = (struct ioc_read_subchannel *) addr; 2173 struct cd_sub_channel_info *data; 2174 u_int32_t len = args->data_len; 2175 2176 data = malloc(sizeof(struct cd_sub_channel_info), 2177 M_SCSICD, M_WAITOK | M_ZERO); 2178 2179 cam_periph_lock(periph); 2180 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2181 ("trying to do CDIOCREADSUBCHANNEL\n")); 2182 2183 if ((len > sizeof(struct cd_sub_channel_info)) || 2184 (len < sizeof(struct cd_sub_channel_header))) { 2185 printf( 2186 "scsi_cd: cdioctl: " 2187 "cdioreadsubchannel: error, len=%d\n", 2188 len); 2189 error = EINVAL; 2190 free(data, M_SCSICD); 2191 cam_periph_unlock(periph); 2192 break; 2193 } 2194 2195 if (softc->quirks & CD_Q_BCD_TRACKS) 2196 args->track = bin2bcd(args->track); 2197 2198 error = cdreadsubchannel(periph, args->address_format, 2199 args->data_format, args->track, data, len); 2200 2201 if (error) { 2202 free(data, M_SCSICD); 2203 cam_periph_unlock(periph); 2204 break; 2205 } 2206 if (softc->quirks & CD_Q_BCD_TRACKS) 2207 data->what.track_info.track_number = 2208 bcd2bin(data->what.track_info.track_number); 2209 len = min(len, ((data->header.data_len[0] << 8) + 2210 data->header.data_len[1] + 2211 sizeof(struct cd_sub_channel_header))); 2212 cam_periph_unlock(periph); 2213 if (nocopyout == 0) { 2214 if (copyout(data, args->data, len) != 0) { 2215 error = EFAULT; 2216 } 2217 } else { 2218 bcopy(data, args->data, len); 2219 } 2220 free(data, M_SCSICD); 2221 } 2222 break; 2223 2224 case CDIOREADTOCHEADER: 2225 { 2226 struct ioc_toc_header *th; 2227 2228 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2229 M_WAITOK | M_ZERO); 2230 2231 cam_periph_lock(periph); 2232 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2233 ("trying to do CDIOREADTOCHEADER\n")); 2234 2235 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2236 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2237 if (error) { 2238 free(th, M_SCSICD); 2239 cam_periph_unlock(periph); 2240 break; 2241 } 2242 if (softc->quirks & CD_Q_BCD_TRACKS) { 2243 /* we are going to have to convert the BCD 2244 * encoding on the cd to what is expected 2245 */ 2246 th->starting_track = 2247 bcd2bin(th->starting_track); 2248 th->ending_track = bcd2bin(th->ending_track); 2249 } 2250 th->len = ntohs(th->len); 2251 bcopy(th, addr, sizeof(*th)); 2252 free(th, M_SCSICD); 2253 cam_periph_unlock(periph); 2254 } 2255 break; 2256 case CDIOREADTOCENTRYS: 2257 { 2258 struct cd_tocdata *data; 2259 struct cd_toc_single *lead; 2260 struct ioc_read_toc_entry *te = 2261 (struct ioc_read_toc_entry *) addr; 2262 struct ioc_toc_header *th; 2263 u_int32_t len, readlen, idx, num; 2264 u_int32_t starting_track = te->starting_track; 2265 2266 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2267 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2268 2269 cam_periph_lock(periph); 2270 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2271 ("trying to do CDIOREADTOCENTRYS\n")); 2272 2273 if (te->data_len < sizeof(struct cd_toc_entry) 2274 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2275 || (te->address_format != CD_MSF_FORMAT 2276 && te->address_format != CD_LBA_FORMAT)) { 2277 error = EINVAL; 2278 printf("scsi_cd: error in readtocentries, " 2279 "returning EINVAL\n"); 2280 free(data, M_SCSICD); 2281 free(lead, M_SCSICD); 2282 cam_periph_unlock(periph); 2283 break; 2284 } 2285 2286 th = &data->header; 2287 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2288 sizeof (*th), /*sense_flags*/0); 2289 if (error) { 2290 free(data, M_SCSICD); 2291 free(lead, M_SCSICD); 2292 cam_periph_unlock(periph); 2293 break; 2294 } 2295 2296 if (softc->quirks & CD_Q_BCD_TRACKS) { 2297 /* we are going to have to convert the BCD 2298 * encoding on the cd to what is expected 2299 */ 2300 th->starting_track = 2301 bcd2bin(th->starting_track); 2302 th->ending_track = bcd2bin(th->ending_track); 2303 } 2304 2305 if (starting_track == 0) 2306 starting_track = th->starting_track; 2307 else if (starting_track == LEADOUT) 2308 starting_track = th->ending_track + 1; 2309 else if (starting_track < th->starting_track || 2310 starting_track > th->ending_track + 1) { 2311 printf("scsi_cd: error in readtocentries, " 2312 "returning EINVAL\n"); 2313 free(data, M_SCSICD); 2314 free(lead, M_SCSICD); 2315 cam_periph_unlock(periph); 2316 error = EINVAL; 2317 break; 2318 } 2319 2320 /* calculate reading length without leadout entry */ 2321 readlen = (th->ending_track - starting_track + 1) * 2322 sizeof(struct cd_toc_entry); 2323 2324 /* and with leadout entry */ 2325 len = readlen + sizeof(struct cd_toc_entry); 2326 if (te->data_len < len) { 2327 len = te->data_len; 2328 if (readlen > len) 2329 readlen = len; 2330 } 2331 if (len > sizeof(data->entries)) { 2332 printf("scsi_cd: error in readtocentries, " 2333 "returning EINVAL\n"); 2334 error = EINVAL; 2335 free(data, M_SCSICD); 2336 free(lead, M_SCSICD); 2337 cam_periph_unlock(periph); 2338 break; 2339 } 2340 num = len / sizeof(struct cd_toc_entry); 2341 2342 if (readlen > 0) { 2343 error = cdreadtoc(periph, te->address_format, 2344 starting_track, 2345 (u_int8_t *)data, 2346 readlen + sizeof (*th), 2347 /*sense_flags*/0); 2348 if (error) { 2349 free(data, M_SCSICD); 2350 free(lead, M_SCSICD); 2351 cam_periph_unlock(periph); 2352 break; 2353 } 2354 } 2355 2356 /* make leadout entry if needed */ 2357 idx = starting_track + num - 1; 2358 if (softc->quirks & CD_Q_BCD_TRACKS) 2359 th->ending_track = bcd2bin(th->ending_track); 2360 if (idx == th->ending_track + 1) { 2361 error = cdreadtoc(periph, te->address_format, 2362 LEADOUT, (u_int8_t *)lead, 2363 sizeof(*lead), 2364 /*sense_flags*/0); 2365 if (error) { 2366 free(data, M_SCSICD); 2367 free(lead, M_SCSICD); 2368 cam_periph_unlock(periph); 2369 break; 2370 } 2371 data->entries[idx - starting_track] = 2372 lead->entry; 2373 } 2374 if (softc->quirks & CD_Q_BCD_TRACKS) { 2375 for (idx = 0; idx < num - 1; idx++) { 2376 data->entries[idx].track = 2377 bcd2bin(data->entries[idx].track); 2378 } 2379 } 2380 2381 cam_periph_unlock(periph); 2382 error = copyout(data->entries, te->data, len); 2383 free(data, M_SCSICD); 2384 free(lead, M_SCSICD); 2385 } 2386 break; 2387 case CDIOREADTOCENTRY: 2388 { 2389 struct cd_toc_single *data; 2390 struct ioc_read_toc_single_entry *te = 2391 (struct ioc_read_toc_single_entry *) addr; 2392 struct ioc_toc_header *th; 2393 u_int32_t track; 2394 2395 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2396 2397 cam_periph_lock(periph); 2398 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2399 ("trying to do CDIOREADTOCENTRY\n")); 2400 2401 if (te->address_format != CD_MSF_FORMAT 2402 && te->address_format != CD_LBA_FORMAT) { 2403 printf("error in readtocentry, " 2404 " returning EINVAL\n"); 2405 free(data, M_SCSICD); 2406 error = EINVAL; 2407 cam_periph_unlock(periph); 2408 break; 2409 } 2410 2411 th = &data->header; 2412 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2413 sizeof (*th), /*sense_flags*/0); 2414 if (error) { 2415 free(data, M_SCSICD); 2416 cam_periph_unlock(periph); 2417 break; 2418 } 2419 2420 if (softc->quirks & CD_Q_BCD_TRACKS) { 2421 /* we are going to have to convert the BCD 2422 * encoding on the cd to what is expected 2423 */ 2424 th->starting_track = 2425 bcd2bin(th->starting_track); 2426 th->ending_track = bcd2bin(th->ending_track); 2427 } 2428 track = te->track; 2429 if (track == 0) 2430 track = th->starting_track; 2431 else if (track == LEADOUT) 2432 /* OK */; 2433 else if (track < th->starting_track || 2434 track > th->ending_track + 1) { 2435 printf("error in readtocentry, " 2436 " returning EINVAL\n"); 2437 free(data, M_SCSICD); 2438 error = EINVAL; 2439 cam_periph_unlock(periph); 2440 break; 2441 } 2442 2443 error = cdreadtoc(periph, te->address_format, track, 2444 (u_int8_t *)data, sizeof(*data), 2445 /*sense_flags*/0); 2446 if (error) { 2447 free(data, M_SCSICD); 2448 cam_periph_unlock(periph); 2449 break; 2450 } 2451 2452 if (softc->quirks & CD_Q_BCD_TRACKS) 2453 data->entry.track = bcd2bin(data->entry.track); 2454 bcopy(&data->entry, &te->entry, 2455 sizeof(struct cd_toc_entry)); 2456 free(data, M_SCSICD); 2457 cam_periph_unlock(periph); 2458 } 2459 break; 2460 case CDIOCSETPATCH: 2461 { 2462 struct ioc_patch *arg = (struct ioc_patch *)addr; 2463 struct cd_mode_params params; 2464 union cd_pages *page; 2465 2466 params.alloc_len = sizeof(union cd_mode_data_6_10); 2467 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2468 M_WAITOK | M_ZERO); 2469 2470 cam_periph_lock(periph); 2471 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2472 ("trying to do CDIOCSETPATCH\n")); 2473 2474 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2475 if (error) { 2476 free(params.mode_buf, M_SCSICD); 2477 cam_periph_unlock(periph); 2478 break; 2479 } 2480 page = cdgetpage(¶ms); 2481 2482 page->audio.port[LEFT_PORT].channels = 2483 arg->patch[0]; 2484 page->audio.port[RIGHT_PORT].channels = 2485 arg->patch[1]; 2486 page->audio.port[2].channels = arg->patch[2]; 2487 page->audio.port[3].channels = arg->patch[3]; 2488 error = cdsetmode(periph, ¶ms); 2489 free(params.mode_buf, M_SCSICD); 2490 cam_periph_unlock(periph); 2491 } 2492 break; 2493 case CDIOCGETVOL: 2494 { 2495 struct ioc_vol *arg = (struct ioc_vol *) addr; 2496 struct cd_mode_params params; 2497 union cd_pages *page; 2498 2499 params.alloc_len = sizeof(union cd_mode_data_6_10); 2500 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2501 M_WAITOK | M_ZERO); 2502 2503 cam_periph_lock(periph); 2504 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2505 ("trying to do CDIOCGETVOL\n")); 2506 2507 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2508 if (error) { 2509 free(params.mode_buf, M_SCSICD); 2510 cam_periph_unlock(periph); 2511 break; 2512 } 2513 page = cdgetpage(¶ms); 2514 2515 arg->vol[LEFT_PORT] = 2516 page->audio.port[LEFT_PORT].volume; 2517 arg->vol[RIGHT_PORT] = 2518 page->audio.port[RIGHT_PORT].volume; 2519 arg->vol[2] = page->audio.port[2].volume; 2520 arg->vol[3] = page->audio.port[3].volume; 2521 free(params.mode_buf, M_SCSICD); 2522 cam_periph_unlock(periph); 2523 } 2524 break; 2525 case CDIOCSETVOL: 2526 { 2527 struct ioc_vol *arg = (struct ioc_vol *) addr; 2528 struct cd_mode_params params; 2529 union cd_pages *page; 2530 2531 params.alloc_len = sizeof(union cd_mode_data_6_10); 2532 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2533 M_WAITOK | M_ZERO); 2534 2535 cam_periph_lock(periph); 2536 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2537 ("trying to do CDIOCSETVOL\n")); 2538 2539 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2540 if (error) { 2541 free(params.mode_buf, M_SCSICD); 2542 cam_periph_unlock(periph); 2543 break; 2544 } 2545 page = cdgetpage(¶ms); 2546 2547 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2548 page->audio.port[LEFT_PORT].volume = 2549 arg->vol[LEFT_PORT]; 2550 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2551 page->audio.port[RIGHT_PORT].volume = 2552 arg->vol[RIGHT_PORT]; 2553 page->audio.port[2].volume = arg->vol[2]; 2554 page->audio.port[3].volume = arg->vol[3]; 2555 error = cdsetmode(periph, ¶ms); 2556 cam_periph_unlock(periph); 2557 free(params.mode_buf, M_SCSICD); 2558 } 2559 break; 2560 case CDIOCSETMONO: 2561 { 2562 struct cd_mode_params params; 2563 union cd_pages *page; 2564 2565 params.alloc_len = sizeof(union cd_mode_data_6_10); 2566 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2567 M_WAITOK | M_ZERO); 2568 2569 cam_periph_lock(periph); 2570 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2571 ("trying to do CDIOCSETMONO\n")); 2572 2573 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2574 if (error) { 2575 free(params.mode_buf, M_SCSICD); 2576 cam_periph_unlock(periph); 2577 break; 2578 } 2579 page = cdgetpage(¶ms); 2580 2581 page->audio.port[LEFT_PORT].channels = 2582 LEFT_CHANNEL | RIGHT_CHANNEL; 2583 page->audio.port[RIGHT_PORT].channels = 2584 LEFT_CHANNEL | RIGHT_CHANNEL; 2585 page->audio.port[2].channels = 0; 2586 page->audio.port[3].channels = 0; 2587 error = cdsetmode(periph, ¶ms); 2588 cam_periph_unlock(periph); 2589 free(params.mode_buf, M_SCSICD); 2590 } 2591 break; 2592 case CDIOCSETSTEREO: 2593 { 2594 struct cd_mode_params params; 2595 union cd_pages *page; 2596 2597 params.alloc_len = sizeof(union cd_mode_data_6_10); 2598 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2599 M_WAITOK | M_ZERO); 2600 2601 cam_periph_lock(periph); 2602 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2603 ("trying to do CDIOCSETSTEREO\n")); 2604 2605 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2606 if (error) { 2607 free(params.mode_buf, M_SCSICD); 2608 cam_periph_unlock(periph); 2609 break; 2610 } 2611 page = cdgetpage(¶ms); 2612 2613 page->audio.port[LEFT_PORT].channels = 2614 LEFT_CHANNEL; 2615 page->audio.port[RIGHT_PORT].channels = 2616 RIGHT_CHANNEL; 2617 page->audio.port[2].channels = 0; 2618 page->audio.port[3].channels = 0; 2619 error = cdsetmode(periph, ¶ms); 2620 free(params.mode_buf, M_SCSICD); 2621 cam_periph_unlock(periph); 2622 } 2623 break; 2624 case CDIOCSETMUTE: 2625 { 2626 struct cd_mode_params params; 2627 union cd_pages *page; 2628 2629 params.alloc_len = sizeof(union cd_mode_data_6_10); 2630 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2631 M_WAITOK | M_ZERO); 2632 2633 cam_periph_lock(periph); 2634 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2635 ("trying to do CDIOCSETMUTE\n")); 2636 2637 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2638 if (error) { 2639 free(params.mode_buf, M_SCSICD); 2640 cam_periph_unlock(periph); 2641 break; 2642 } 2643 page = cdgetpage(¶ms); 2644 2645 page->audio.port[LEFT_PORT].channels = 0; 2646 page->audio.port[RIGHT_PORT].channels = 0; 2647 page->audio.port[2].channels = 0; 2648 page->audio.port[3].channels = 0; 2649 error = cdsetmode(periph, ¶ms); 2650 free(params.mode_buf, M_SCSICD); 2651 cam_periph_unlock(periph); 2652 } 2653 break; 2654 case CDIOCSETLEFT: 2655 { 2656 struct cd_mode_params params; 2657 union cd_pages *page; 2658 2659 params.alloc_len = sizeof(union cd_mode_data_6_10); 2660 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2661 M_WAITOK | M_ZERO); 2662 2663 cam_periph_lock(periph); 2664 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2665 ("trying to do CDIOCSETLEFT\n")); 2666 2667 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2668 if (error) { 2669 free(params.mode_buf, M_SCSICD); 2670 cam_periph_unlock(periph); 2671 break; 2672 } 2673 page = cdgetpage(¶ms); 2674 2675 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2676 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2677 page->audio.port[2].channels = 0; 2678 page->audio.port[3].channels = 0; 2679 error = cdsetmode(periph, ¶ms); 2680 free(params.mode_buf, M_SCSICD); 2681 cam_periph_unlock(periph); 2682 } 2683 break; 2684 case CDIOCSETRIGHT: 2685 { 2686 struct cd_mode_params params; 2687 union cd_pages *page; 2688 2689 params.alloc_len = sizeof(union cd_mode_data_6_10); 2690 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2691 M_WAITOK | M_ZERO); 2692 2693 cam_periph_lock(periph); 2694 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2695 ("trying to do CDIOCSETRIGHT\n")); 2696 2697 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2698 if (error) { 2699 free(params.mode_buf, M_SCSICD); 2700 cam_periph_unlock(periph); 2701 break; 2702 } 2703 page = cdgetpage(¶ms); 2704 2705 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2706 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2707 page->audio.port[2].channels = 0; 2708 page->audio.port[3].channels = 0; 2709 error = cdsetmode(periph, ¶ms); 2710 free(params.mode_buf, M_SCSICD); 2711 cam_periph_unlock(periph); 2712 } 2713 break; 2714 case CDIOCRESUME: 2715 cam_periph_lock(periph); 2716 error = cdpause(periph, 1); 2717 cam_periph_unlock(periph); 2718 break; 2719 case CDIOCPAUSE: 2720 cam_periph_lock(periph); 2721 error = cdpause(periph, 0); 2722 cam_periph_unlock(periph); 2723 break; 2724 case CDIOCSTART: 2725 cam_periph_lock(periph); 2726 error = cdstartunit(periph, 0); 2727 cam_periph_unlock(periph); 2728 break; 2729 case CDIOCCLOSE: 2730 cam_periph_lock(periph); 2731 error = cdstartunit(periph, 1); 2732 cam_periph_unlock(periph); 2733 break; 2734 case CDIOCSTOP: 2735 cam_periph_lock(periph); 2736 error = cdstopunit(periph, 0); 2737 cam_periph_unlock(periph); 2738 break; 2739 case CDIOCEJECT: 2740 cam_periph_lock(periph); 2741 error = cdstopunit(periph, 1); 2742 cam_periph_unlock(periph); 2743 break; 2744 case CDIOCALLOW: 2745 cam_periph_lock(periph); 2746 cdprevent(periph, PR_ALLOW); 2747 cam_periph_unlock(periph); 2748 break; 2749 case CDIOCPREVENT: 2750 cam_periph_lock(periph); 2751 cdprevent(periph, PR_PREVENT); 2752 cam_periph_unlock(periph); 2753 break; 2754 case CDIOCSETDEBUG: 2755 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2756 error = ENOTTY; 2757 break; 2758 case CDIOCCLRDEBUG: 2759 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2760 error = ENOTTY; 2761 break; 2762 case CDIOCRESET: 2763 /* return (cd_reset(periph)); */ 2764 error = ENOTTY; 2765 break; 2766 case CDRIOCREADSPEED: 2767 cam_periph_lock(periph); 2768 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2769 cam_periph_unlock(periph); 2770 break; 2771 case CDRIOCWRITESPEED: 2772 cam_periph_lock(periph); 2773 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2774 cam_periph_unlock(periph); 2775 break; 2776 case CDRIOCGETBLOCKSIZE: 2777 *(int *)addr = softc->params.blksize; 2778 break; 2779 case CDRIOCSETBLOCKSIZE: 2780 if (*(int *)addr <= 0) { 2781 error = EINVAL; 2782 break; 2783 } 2784 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2785 break; 2786 case DVDIOCSENDKEY: 2787 case DVDIOCREPORTKEY: { 2788 struct dvd_authinfo *authinfo; 2789 2790 authinfo = (struct dvd_authinfo *)addr; 2791 2792 if (cmd == DVDIOCREPORTKEY) 2793 error = cdreportkey(periph, authinfo); 2794 else 2795 error = cdsendkey(periph, authinfo); 2796 break; 2797 } 2798 case DVDIOCREADSTRUCTURE: { 2799 struct dvd_struct *dvdstruct; 2800 2801 dvdstruct = (struct dvd_struct *)addr; 2802 2803 error = cdreaddvdstructure(periph, dvdstruct); 2804 2805 break; 2806 } 2807 default: 2808 cam_periph_lock(periph); 2809 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2810 cam_periph_unlock(periph); 2811 break; 2812 } 2813 2814 cam_periph_lock(periph); 2815 cam_periph_unhold(periph); 2816 2817 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2818 if (error && bootverbose) { 2819 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2820 } 2821 cam_periph_unlock(periph); 2822 2823 return (error); 2824} 2825 2826static void 2827cdprevent(struct cam_periph *periph, int action) 2828{ 2829 union ccb *ccb; 2830 struct cd_softc *softc; 2831 int error; 2832 2833 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2834 2835 softc = (struct cd_softc *)periph->softc; 2836 2837 if (((action == PR_ALLOW) 2838 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2839 || ((action == PR_PREVENT) 2840 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2841 return; 2842 } 2843 2844 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2845 2846 scsi_prevent(&ccb->csio, 2847 /*retries*/ cd_retry_count, 2848 cddone, 2849 MSG_SIMPLE_Q_TAG, 2850 action, 2851 SSD_FULL_SIZE, 2852 /* timeout */60000); 2853 2854 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2855 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2856 2857 xpt_release_ccb(ccb); 2858 2859 if (error == 0) { 2860 if (action == PR_ALLOW) 2861 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2862 else 2863 softc->flags |= CD_FLAG_DISC_LOCKED; 2864 } 2865} 2866 2867/* 2868 * XXX: the disk media and sector size is only really able to change 2869 * XXX: while the device is closed. 2870 */ 2871static int 2872cdcheckmedia(struct cam_periph *periph) 2873{ 2874 struct cd_softc *softc; 2875 struct ioc_toc_header *toch; 2876 struct cd_toc_single leadout; 2877 u_int32_t size, toclen; 2878 int error, num_entries, cdindex; 2879 2880 softc = (struct cd_softc *)periph->softc; 2881 2882 cdprevent(periph, PR_PREVENT); 2883 softc->disk->d_sectorsize = 2048; 2884 softc->disk->d_mediasize = 0; 2885 2886 /* 2887 * Get the disc size and block size. If we can't get it, we don't 2888 * have media, most likely. 2889 */ 2890 if ((error = cdsize(periph, &size)) != 0) { 2891 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2892 cdprevent(periph, PR_ALLOW); 2893 return (error); 2894 } else { 2895 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2896 softc->disk->d_sectorsize = softc->params.blksize; 2897 softc->disk->d_mediasize = 2898 (off_t)softc->params.blksize * softc->params.disksize; 2899 } 2900 2901 /* 2902 * Now we check the table of contents. This (currently) is only 2903 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2904 * things like present a separate entry in /dev for each track, 2905 * like that acd(4) driver does. 2906 */ 2907 bzero(&softc->toc, sizeof(softc->toc)); 2908 toch = &softc->toc.header; 2909 /* 2910 * We will get errors here for media that doesn't have a table of 2911 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2912 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2913 * has not been recorded (no complete session) and the Format codes 2914 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2915 * with an INVALID FIELD IN CDB. Devices that are not capable of 2916 * reading an incomplete session on DDC/CD-R/RW media shall report 2917 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2918 * 2919 * So this isn't fatal if we can't read the table of contents, it 2920 * just means that the user won't be able to issue the play tracks 2921 * ioctl, and likely lots of other stuff won't work either. They 2922 * need to burn the CD before we can do a whole lot with it. So 2923 * we don't print anything here if we get an error back. 2924 */ 2925 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2926 SF_NO_PRINT); 2927 /* 2928 * Errors in reading the table of contents aren't fatal, we just 2929 * won't have a valid table of contents cached. 2930 */ 2931 if (error != 0) { 2932 error = 0; 2933 bzero(&softc->toc, sizeof(softc->toc)); 2934 goto bailout; 2935 } 2936 2937 if (softc->quirks & CD_Q_BCD_TRACKS) { 2938 toch->starting_track = bcd2bin(toch->starting_track); 2939 toch->ending_track = bcd2bin(toch->ending_track); 2940 } 2941 2942 /* Number of TOC entries, plus leadout */ 2943 num_entries = (toch->ending_track - toch->starting_track) + 2; 2944 2945 if (num_entries <= 0) 2946 goto bailout; 2947 2948 toclen = num_entries * sizeof(struct cd_toc_entry); 2949 2950 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2951 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2952 SF_NO_PRINT); 2953 if (error != 0) { 2954 error = 0; 2955 bzero(&softc->toc, sizeof(softc->toc)); 2956 goto bailout; 2957 } 2958 2959 if (softc->quirks & CD_Q_BCD_TRACKS) { 2960 toch->starting_track = bcd2bin(toch->starting_track); 2961 toch->ending_track = bcd2bin(toch->ending_track); 2962 } 2963 /* 2964 * XXX KDM is this necessary? Probably only if the drive doesn't 2965 * return leadout information with the table of contents. 2966 */ 2967 cdindex = toch->starting_track + num_entries -1; 2968 if (cdindex == toch->ending_track + 1) { 2969 2970 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2971 (u_int8_t *)&leadout, sizeof(leadout), 2972 SF_NO_PRINT); 2973 if (error != 0) { 2974 error = 0; 2975 goto bailout; 2976 } 2977 softc->toc.entries[cdindex - toch->starting_track] = 2978 leadout.entry; 2979 } 2980 if (softc->quirks & CD_Q_BCD_TRACKS) { 2981 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 2982 softc->toc.entries[cdindex].track = 2983 bcd2bin(softc->toc.entries[cdindex].track); 2984 } 2985 } 2986 2987 softc->flags |= CD_FLAG_VALID_TOC; 2988 2989 /* If the first track is audio, correct sector size. */ 2990 if ((softc->toc.entries[0].control & 4) == 0) { 2991 softc->disk->d_sectorsize = softc->params.blksize = 2352; 2992 softc->disk->d_mediasize = 2993 (off_t)softc->params.blksize * softc->params.disksize; 2994 } 2995 2996bailout: 2997 2998 /* 2999 * We unconditionally (re)set the blocksize each time the 3000 * CD device is opened. This is because the CD can change, 3001 * and therefore the blocksize might change. 3002 * XXX problems here if some slice or partition is still 3003 * open with the old size? 3004 */ 3005 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3006 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3007 softc->disk->d_devstat->block_size = softc->params.blksize; 3008 3009 return (error); 3010} 3011 3012static int 3013cdsize(struct cam_periph *periph, u_int32_t *size) 3014{ 3015 struct cd_softc *softc; 3016 union ccb *ccb; 3017 struct scsi_read_capacity_data *rcap_buf; 3018 int error; 3019 3020 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3021 3022 softc = (struct cd_softc *)periph->softc; 3023 3024 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3025 3026 /* XXX Should be M_WAITOK */ 3027 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3028 M_SCSICD, M_NOWAIT | M_ZERO); 3029 if (rcap_buf == NULL) 3030 return (ENOMEM); 3031 3032 scsi_read_capacity(&ccb->csio, 3033 /*retries*/ cd_retry_count, 3034 cddone, 3035 MSG_SIMPLE_Q_TAG, 3036 rcap_buf, 3037 SSD_FULL_SIZE, 3038 /* timeout */20000); 3039 3040 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3041 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3042 3043 xpt_release_ccb(ccb); 3044 3045 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3046 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3047 /* Make sure we got at least some block size. */ 3048 if (error == 0 && softc->params.blksize == 0) 3049 error = EIO; 3050 /* 3051 * SCSI-3 mandates that the reported blocksize shall be 2048. 3052 * Older drives sometimes report funny values, trim it down to 3053 * 2048, or other parts of the kernel will get confused. 3054 * 3055 * XXX we leave drives alone that might report 512 bytes, as 3056 * well as drives reporting more weird sizes like perhaps 4K. 3057 */ 3058 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3059 softc->params.blksize = 2048; 3060 3061 free(rcap_buf, M_SCSICD); 3062 *size = softc->params.disksize; 3063 3064 return (error); 3065 3066} 3067 3068static int 3069cd6byteworkaround(union ccb *ccb) 3070{ 3071 u_int8_t *cdb; 3072 struct cam_periph *periph; 3073 struct cd_softc *softc; 3074 struct cd_mode_params *params; 3075 int frozen, found; 3076 3077 periph = xpt_path_periph(ccb->ccb_h.path); 3078 softc = (struct cd_softc *)periph->softc; 3079 3080 cdb = ccb->csio.cdb_io.cdb_bytes; 3081 3082 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3083 || ((cdb[0] != MODE_SENSE_6) 3084 && (cdb[0] != MODE_SELECT_6))) 3085 return (0); 3086 3087 /* 3088 * Because there is no convenient place to stash the overall 3089 * cd_mode_params structure pointer, we have to grab it like this. 3090 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3091 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3092 * 3093 * XXX It would be nice if, at some point, we could increase the 3094 * number of available peripheral private pointers. Both pointers 3095 * are currently used in most every peripheral driver. 3096 */ 3097 found = 0; 3098 3099 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3100 if (params->mode_buf == ccb->csio.data_ptr) { 3101 found = 1; 3102 break; 3103 } 3104 } 3105 3106 /* 3107 * This shouldn't happen. All mode sense and mode select 3108 * operations in the cd(4) driver MUST go through cdgetmode() and 3109 * cdsetmode()! 3110 */ 3111 if (found == 0) { 3112 xpt_print(periph->path, 3113 "mode buffer not found in mode queue!\n"); 3114 return (0); 3115 } 3116 3117 params->cdb_size = 10; 3118 softc->minimum_command_size = 10; 3119 xpt_print(ccb->ccb_h.path, 3120 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3121 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3122 3123 if (cdb[0] == MODE_SENSE_6) { 3124 struct scsi_mode_sense_10 ms10; 3125 struct scsi_mode_sense_6 *ms6; 3126 int len; 3127 3128 ms6 = (struct scsi_mode_sense_6 *)cdb; 3129 3130 bzero(&ms10, sizeof(ms10)); 3131 ms10.opcode = MODE_SENSE_10; 3132 ms10.byte2 = ms6->byte2; 3133 ms10.page = ms6->page; 3134 3135 /* 3136 * 10 byte mode header, block descriptor, 3137 * sizeof(union cd_pages) 3138 */ 3139 len = sizeof(struct cd_mode_data_10); 3140 ccb->csio.dxfer_len = len; 3141 3142 scsi_ulto2b(len, ms10.length); 3143 ms10.control = ms6->control; 3144 bcopy(&ms10, cdb, 10); 3145 ccb->csio.cdb_len = 10; 3146 } else { 3147 struct scsi_mode_select_10 ms10; 3148 struct scsi_mode_select_6 *ms6; 3149 struct scsi_mode_header_6 *header6; 3150 struct scsi_mode_header_10 *header10; 3151 struct scsi_mode_page_header *page_header; 3152 int blk_desc_len, page_num, page_size, len; 3153 3154 ms6 = (struct scsi_mode_select_6 *)cdb; 3155 3156 bzero(&ms10, sizeof(ms10)); 3157 ms10.opcode = MODE_SELECT_10; 3158 ms10.byte2 = ms6->byte2; 3159 3160 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3161 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3162 3163 page_header = find_mode_page_6(header6); 3164 page_num = page_header->page_code; 3165 3166 blk_desc_len = header6->blk_desc_len; 3167 3168 page_size = cdgetpagesize(page_num); 3169 3170 if (page_size != (page_header->page_length + 3171 sizeof(*page_header))) 3172 page_size = page_header->page_length + 3173 sizeof(*page_header); 3174 3175 len = sizeof(*header10) + blk_desc_len + page_size; 3176 3177 len = min(params->alloc_len, len); 3178 3179 /* 3180 * Since the 6 byte parameter header is shorter than the 10 3181 * byte parameter header, we need to copy the actual mode 3182 * page data, and the block descriptor, if any, so things wind 3183 * up in the right place. The regions will overlap, but 3184 * bcopy() does the right thing. 3185 */ 3186 bcopy(params->mode_buf + sizeof(*header6), 3187 params->mode_buf + sizeof(*header10), 3188 len - sizeof(*header10)); 3189 3190 /* Make sure these fields are set correctly. */ 3191 scsi_ulto2b(0, header10->data_length); 3192 header10->medium_type = 0; 3193 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3194 3195 ccb->csio.dxfer_len = len; 3196 3197 scsi_ulto2b(len, ms10.length); 3198 ms10.control = ms6->control; 3199 bcopy(&ms10, cdb, 10); 3200 ccb->csio.cdb_len = 10; 3201 } 3202 3203 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3204 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3205 xpt_action(ccb); 3206 if (frozen) { 3207 cam_release_devq(ccb->ccb_h.path, 3208 /*relsim_flags*/0, 3209 /*openings*/0, 3210 /*timeout*/0, 3211 /*getcount_only*/0); 3212 } 3213 3214 return (ERESTART); 3215} 3216 3217static int 3218cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3219{ 3220 struct cd_softc *softc; 3221 struct cam_periph *periph; 3222 int error, error_code, sense_key, asc, ascq; 3223 3224 periph = xpt_path_periph(ccb->ccb_h.path); 3225 softc = (struct cd_softc *)periph->softc; 3226 3227 error = 0; 3228 3229 /* 3230 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3231 * CDB comes back with this particular error, try transforming it 3232 * into the 10 byte version. 3233 */ 3234 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3235 error = cd6byteworkaround(ccb); 3236 } else if (scsi_extract_sense_ccb(ccb, 3237 &error_code, &sense_key, &asc, &ascq)) { 3238 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3239 error = cd6byteworkaround(ccb); 3240 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3241 asc == 0x28 && ascq == 0x00) 3242 disk_media_changed(softc->disk, M_NOWAIT); 3243 else if (sense_key == SSD_KEY_NOT_READY && 3244 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3245 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3246 disk_media_gone(softc->disk, M_NOWAIT); 3247 } 3248 } 3249 3250 if (error == ERESTART) 3251 return (error); 3252 3253 /* 3254 * XXX 3255 * Until we have a better way of doing pack validation, 3256 * don't treat UAs as errors. 3257 */ 3258 sense_flags |= SF_RETRY_UA; 3259 return (cam_periph_error(ccb, cam_flags, sense_flags, 3260 &softc->saved_ccb)); 3261} 3262 3263static void 3264cdmediapoll(void *arg) 3265{ 3266 struct cam_periph *periph = arg; 3267 struct cd_softc *softc = periph->softc; 3268 3269 if (softc->flags & CD_FLAG_CHANGER) 3270 return; 3271 3272 if (softc->state == CD_STATE_NORMAL && !softc->tur && 3273 softc->outstanding_cmds == 0) { 3274 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3275 softc->tur = 1; 3276 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 3277 } 3278 } 3279 /* Queue us up again */ 3280 if (cd_poll_period != 0) 3281 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3282} 3283 3284/* 3285 * Read table of contents 3286 */ 3287static int 3288cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3289 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3290{ 3291 struct scsi_read_toc *scsi_cmd; 3292 u_int32_t ntoc; 3293 struct ccb_scsiio *csio; 3294 union ccb *ccb; 3295 int error; 3296 3297 ntoc = len; 3298 error = 0; 3299 3300 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3301 3302 csio = &ccb->csio; 3303 3304 cam_fill_csio(csio, 3305 /* retries */ cd_retry_count, 3306 /* cbfcnp */ cddone, 3307 /* flags */ CAM_DIR_IN, 3308 /* tag_action */ MSG_SIMPLE_Q_TAG, 3309 /* data_ptr */ data, 3310 /* dxfer_len */ len, 3311 /* sense_len */ SSD_FULL_SIZE, 3312 sizeof(struct scsi_read_toc), 3313 /* timeout */ 50000); 3314 3315 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3316 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3317 3318 if (mode == CD_MSF_FORMAT) 3319 scsi_cmd->byte2 |= CD_MSF; 3320 scsi_cmd->from_track = start; 3321 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3322 scsi_cmd->data_len[0] = (ntoc) >> 8; 3323 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3324 3325 scsi_cmd->op_code = READ_TOC; 3326 3327 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3328 /*sense_flags*/SF_RETRY_UA | sense_flags); 3329 3330 xpt_release_ccb(ccb); 3331 3332 return(error); 3333} 3334 3335static int 3336cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3337 u_int32_t format, int track, 3338 struct cd_sub_channel_info *data, u_int32_t len) 3339{ 3340 struct scsi_read_subchannel *scsi_cmd; 3341 struct ccb_scsiio *csio; 3342 union ccb *ccb; 3343 int error; 3344 3345 error = 0; 3346 3347 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3348 3349 csio = &ccb->csio; 3350 3351 cam_fill_csio(csio, 3352 /* retries */ cd_retry_count, 3353 /* cbfcnp */ cddone, 3354 /* flags */ CAM_DIR_IN, 3355 /* tag_action */ MSG_SIMPLE_Q_TAG, 3356 /* data_ptr */ (u_int8_t *)data, 3357 /* dxfer_len */ len, 3358 /* sense_len */ SSD_FULL_SIZE, 3359 sizeof(struct scsi_read_subchannel), 3360 /* timeout */ 50000); 3361 3362 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3363 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3364 3365 scsi_cmd->op_code = READ_SUBCHANNEL; 3366 if (mode == CD_MSF_FORMAT) 3367 scsi_cmd->byte1 |= CD_MSF; 3368 scsi_cmd->byte2 = SRS_SUBQ; 3369 scsi_cmd->subchan_format = format; 3370 scsi_cmd->track = track; 3371 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3372 scsi_cmd->control = 0; 3373 3374 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3375 /*sense_flags*/SF_RETRY_UA); 3376 3377 xpt_release_ccb(ccb); 3378 3379 return(error); 3380} 3381 3382 3383/* 3384 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3385 * routine. See comments in cd6byteworkaround() for details. 3386 */ 3387static int 3388cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3389 u_int32_t page) 3390{ 3391 struct ccb_scsiio *csio; 3392 struct cd_softc *softc; 3393 union ccb *ccb; 3394 int param_len; 3395 int error; 3396 3397 softc = (struct cd_softc *)periph->softc; 3398 3399 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3400 3401 csio = &ccb->csio; 3402 3403 data->cdb_size = softc->minimum_command_size; 3404 if (data->cdb_size < 10) 3405 param_len = sizeof(struct cd_mode_data); 3406 else 3407 param_len = sizeof(struct cd_mode_data_10); 3408 3409 /* Don't say we've got more room than we actually allocated */ 3410 param_len = min(param_len, data->alloc_len); 3411 3412 scsi_mode_sense_len(csio, 3413 /* retries */ cd_retry_count, 3414 /* cbfcnp */ cddone, 3415 /* tag_action */ MSG_SIMPLE_Q_TAG, 3416 /* dbd */ 0, 3417 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3418 /* page */ page, 3419 /* param_buf */ data->mode_buf, 3420 /* param_len */ param_len, 3421 /* minimum_cmd_size */ softc->minimum_command_size, 3422 /* sense_len */ SSD_FULL_SIZE, 3423 /* timeout */ 50000); 3424 3425 /* 3426 * It would be nice not to have to do this, but there's no 3427 * available pointer in the CCB that would allow us to stuff the 3428 * mode params structure in there and retrieve it in 3429 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3430 * lets the caller know what CDB size we ended up using, so they 3431 * can find the actual mode page offset. 3432 */ 3433 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3434 3435 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3436 /*sense_flags*/SF_RETRY_UA); 3437 3438 xpt_release_ccb(ccb); 3439 3440 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3441 3442 /* 3443 * This is a bit of belt-and-suspenders checking, but if we run 3444 * into a situation where the target sends back multiple block 3445 * descriptors, we might not have enough space in the buffer to 3446 * see the whole mode page. Better to return an error than 3447 * potentially access memory beyond our malloced region. 3448 */ 3449 if (error == 0) { 3450 u_int32_t data_len; 3451 3452 if (data->cdb_size == 10) { 3453 struct scsi_mode_header_10 *hdr10; 3454 3455 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3456 data_len = scsi_2btoul(hdr10->data_length); 3457 data_len += sizeof(hdr10->data_length); 3458 } else { 3459 struct scsi_mode_header_6 *hdr6; 3460 3461 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3462 data_len = hdr6->data_length; 3463 data_len += sizeof(hdr6->data_length); 3464 } 3465 3466 /* 3467 * Complain if there is more mode data available than we 3468 * allocated space for. This could potentially happen if 3469 * we miscalculated the page length for some reason, if the 3470 * drive returns multiple block descriptors, or if it sets 3471 * the data length incorrectly. 3472 */ 3473 if (data_len > data->alloc_len) { 3474 xpt_print(periph->path, "allocated modepage %d length " 3475 "%d < returned length %d\n", page, data->alloc_len, 3476 data_len); 3477 error = ENOSPC; 3478 } 3479 } 3480 return (error); 3481} 3482 3483/* 3484 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3485 * routine. See comments in cd6byteworkaround() for details. 3486 */ 3487static int 3488cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3489{ 3490 struct ccb_scsiio *csio; 3491 struct cd_softc *softc; 3492 union ccb *ccb; 3493 int cdb_size, param_len; 3494 int error; 3495 3496 softc = (struct cd_softc *)periph->softc; 3497 3498 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3499 3500 csio = &ccb->csio; 3501 3502 error = 0; 3503 3504 /* 3505 * If the data is formatted for the 10 byte version of the mode 3506 * select parameter list, we need to use the 10 byte CDB. 3507 * Otherwise, we use whatever the stored minimum command size. 3508 */ 3509 if (data->cdb_size == 10) 3510 cdb_size = data->cdb_size; 3511 else 3512 cdb_size = softc->minimum_command_size; 3513 3514 if (cdb_size >= 10) { 3515 struct scsi_mode_header_10 *mode_header; 3516 u_int32_t data_len; 3517 3518 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3519 3520 data_len = scsi_2btoul(mode_header->data_length); 3521 3522 scsi_ulto2b(0, mode_header->data_length); 3523 /* 3524 * SONY drives do not allow a mode select with a medium_type 3525 * value that has just been returned by a mode sense; use a 3526 * medium_type of 0 (Default) instead. 3527 */ 3528 mode_header->medium_type = 0; 3529 3530 /* 3531 * Pass back whatever the drive passed to us, plus the size 3532 * of the data length field. 3533 */ 3534 param_len = data_len + sizeof(mode_header->data_length); 3535 3536 } else { 3537 struct scsi_mode_header_6 *mode_header; 3538 3539 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3540 3541 param_len = mode_header->data_length + 1; 3542 3543 mode_header->data_length = 0; 3544 /* 3545 * SONY drives do not allow a mode select with a medium_type 3546 * value that has just been returned by a mode sense; use a 3547 * medium_type of 0 (Default) instead. 3548 */ 3549 mode_header->medium_type = 0; 3550 } 3551 3552 /* Don't say we've got more room than we actually allocated */ 3553 param_len = min(param_len, data->alloc_len); 3554 3555 scsi_mode_select_len(csio, 3556 /* retries */ cd_retry_count, 3557 /* cbfcnp */ cddone, 3558 /* tag_action */ MSG_SIMPLE_Q_TAG, 3559 /* scsi_page_fmt */ 1, 3560 /* save_pages */ 0, 3561 /* param_buf */ data->mode_buf, 3562 /* param_len */ param_len, 3563 /* minimum_cmd_size */ cdb_size, 3564 /* sense_len */ SSD_FULL_SIZE, 3565 /* timeout */ 50000); 3566 3567 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3568 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3569 3570 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3571 /*sense_flags*/SF_RETRY_UA); 3572 3573 xpt_release_ccb(ccb); 3574 3575 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3576 3577 return (error); 3578} 3579 3580 3581static int 3582cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3583{ 3584 struct ccb_scsiio *csio; 3585 union ccb *ccb; 3586 int error; 3587 u_int8_t cdb_len; 3588 3589 error = 0; 3590 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3591 csio = &ccb->csio; 3592 /* 3593 * Use the smallest possible command to perform the operation. 3594 */ 3595 if ((len & 0xffff0000) == 0) { 3596 /* 3597 * We can fit in a 10 byte cdb. 3598 */ 3599 struct scsi_play_10 *scsi_cmd; 3600 3601 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3602 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3603 scsi_cmd->op_code = PLAY_10; 3604 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3605 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3606 cdb_len = sizeof(*scsi_cmd); 3607 } else { 3608 struct scsi_play_12 *scsi_cmd; 3609 3610 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3611 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3612 scsi_cmd->op_code = PLAY_12; 3613 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3614 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3615 cdb_len = sizeof(*scsi_cmd); 3616 } 3617 cam_fill_csio(csio, 3618 /*retries*/ cd_retry_count, 3619 cddone, 3620 /*flags*/CAM_DIR_NONE, 3621 MSG_SIMPLE_Q_TAG, 3622 /*dataptr*/NULL, 3623 /*datalen*/0, 3624 /*sense_len*/SSD_FULL_SIZE, 3625 cdb_len, 3626 /*timeout*/50 * 1000); 3627 3628 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3629 /*sense_flags*/SF_RETRY_UA); 3630 3631 xpt_release_ccb(ccb); 3632 3633 return(error); 3634} 3635 3636static int 3637cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3638 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3639{ 3640 struct scsi_play_msf *scsi_cmd; 3641 struct ccb_scsiio *csio; 3642 union ccb *ccb; 3643 int error; 3644 3645 error = 0; 3646 3647 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3648 3649 csio = &ccb->csio; 3650 3651 cam_fill_csio(csio, 3652 /* retries */ cd_retry_count, 3653 /* cbfcnp */ cddone, 3654 /* flags */ CAM_DIR_NONE, 3655 /* tag_action */ MSG_SIMPLE_Q_TAG, 3656 /* data_ptr */ NULL, 3657 /* dxfer_len */ 0, 3658 /* sense_len */ SSD_FULL_SIZE, 3659 sizeof(struct scsi_play_msf), 3660 /* timeout */ 50000); 3661 3662 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3663 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3664 3665 scsi_cmd->op_code = PLAY_MSF; 3666 scsi_cmd->start_m = startm; 3667 scsi_cmd->start_s = starts; 3668 scsi_cmd->start_f = startf; 3669 scsi_cmd->end_m = endm; 3670 scsi_cmd->end_s = ends; 3671 scsi_cmd->end_f = endf; 3672 3673 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3674 /*sense_flags*/SF_RETRY_UA); 3675 3676 xpt_release_ccb(ccb); 3677 3678 return(error); 3679} 3680 3681 3682static int 3683cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3684 u_int32_t etrack, u_int32_t eindex) 3685{ 3686 struct scsi_play_track *scsi_cmd; 3687 struct ccb_scsiio *csio; 3688 union ccb *ccb; 3689 int error; 3690 3691 error = 0; 3692 3693 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3694 3695 csio = &ccb->csio; 3696 3697 cam_fill_csio(csio, 3698 /* retries */ cd_retry_count, 3699 /* cbfcnp */ cddone, 3700 /* flags */ CAM_DIR_NONE, 3701 /* tag_action */ MSG_SIMPLE_Q_TAG, 3702 /* data_ptr */ NULL, 3703 /* dxfer_len */ 0, 3704 /* sense_len */ SSD_FULL_SIZE, 3705 sizeof(struct scsi_play_track), 3706 /* timeout */ 50000); 3707 3708 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3709 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3710 3711 scsi_cmd->op_code = PLAY_TRACK; 3712 scsi_cmd->start_track = strack; 3713 scsi_cmd->start_index = sindex; 3714 scsi_cmd->end_track = etrack; 3715 scsi_cmd->end_index = eindex; 3716 3717 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3718 /*sense_flags*/SF_RETRY_UA); 3719 3720 xpt_release_ccb(ccb); 3721 3722 return(error); 3723} 3724 3725static int 3726cdpause(struct cam_periph *periph, u_int32_t go) 3727{ 3728 struct scsi_pause *scsi_cmd; 3729 struct ccb_scsiio *csio; 3730 union ccb *ccb; 3731 int error; 3732 3733 error = 0; 3734 3735 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3736 3737 csio = &ccb->csio; 3738 3739 cam_fill_csio(csio, 3740 /* retries */ cd_retry_count, 3741 /* cbfcnp */ cddone, 3742 /* flags */ CAM_DIR_NONE, 3743 /* tag_action */ MSG_SIMPLE_Q_TAG, 3744 /* data_ptr */ NULL, 3745 /* dxfer_len */ 0, 3746 /* sense_len */ SSD_FULL_SIZE, 3747 sizeof(struct scsi_pause), 3748 /* timeout */ 50000); 3749 3750 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3751 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3752 3753 scsi_cmd->op_code = PAUSE; 3754 scsi_cmd->resume = go; 3755 3756 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3757 /*sense_flags*/SF_RETRY_UA); 3758 3759 xpt_release_ccb(ccb); 3760 3761 return(error); 3762} 3763 3764static int 3765cdstartunit(struct cam_periph *periph, int load) 3766{ 3767 union ccb *ccb; 3768 int error; 3769 3770 error = 0; 3771 3772 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3773 3774 scsi_start_stop(&ccb->csio, 3775 /* retries */ cd_retry_count, 3776 /* cbfcnp */ cddone, 3777 /* tag_action */ MSG_SIMPLE_Q_TAG, 3778 /* start */ TRUE, 3779 /* load_eject */ load, 3780 /* immediate */ FALSE, 3781 /* sense_len */ SSD_FULL_SIZE, 3782 /* timeout */ 50000); 3783 3784 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3785 /*sense_flags*/SF_RETRY_UA); 3786 3787 xpt_release_ccb(ccb); 3788 3789 return(error); 3790} 3791 3792static int 3793cdstopunit(struct cam_periph *periph, u_int32_t eject) 3794{ 3795 union ccb *ccb; 3796 int error; 3797 3798 error = 0; 3799 3800 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3801 3802 scsi_start_stop(&ccb->csio, 3803 /* retries */ cd_retry_count, 3804 /* cbfcnp */ cddone, 3805 /* tag_action */ MSG_SIMPLE_Q_TAG, 3806 /* start */ FALSE, 3807 /* load_eject */ eject, 3808 /* immediate */ FALSE, 3809 /* sense_len */ SSD_FULL_SIZE, 3810 /* timeout */ 50000); 3811 3812 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3813 /*sense_flags*/SF_RETRY_UA); 3814 3815 xpt_release_ccb(ccb); 3816 3817 return(error); 3818} 3819 3820static int 3821cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3822{ 3823 struct scsi_set_speed *scsi_cmd; 3824 struct ccb_scsiio *csio; 3825 union ccb *ccb; 3826 int error; 3827 3828 error = 0; 3829 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3830 csio = &ccb->csio; 3831 3832 /* Preserve old behavior: units in multiples of CDROM speed */ 3833 if (rdspeed < 177) 3834 rdspeed *= 177; 3835 if (wrspeed < 177) 3836 wrspeed *= 177; 3837 3838 cam_fill_csio(csio, 3839 /* retries */ cd_retry_count, 3840 /* cbfcnp */ cddone, 3841 /* flags */ CAM_DIR_NONE, 3842 /* tag_action */ MSG_SIMPLE_Q_TAG, 3843 /* data_ptr */ NULL, 3844 /* dxfer_len */ 0, 3845 /* sense_len */ SSD_FULL_SIZE, 3846 sizeof(struct scsi_set_speed), 3847 /* timeout */ 50000); 3848 3849 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3850 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3851 3852 scsi_cmd->opcode = SET_CD_SPEED; 3853 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3854 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3855 3856 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3857 /*sense_flags*/SF_RETRY_UA); 3858 3859 xpt_release_ccb(ccb); 3860 3861 return(error); 3862} 3863 3864static int 3865cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3866{ 3867 union ccb *ccb; 3868 u_int8_t *databuf; 3869 u_int32_t lba; 3870 int error; 3871 int length; 3872 3873 error = 0; 3874 databuf = NULL; 3875 lba = 0; 3876 3877 switch (authinfo->format) { 3878 case DVD_REPORT_AGID: 3879 length = sizeof(struct scsi_report_key_data_agid); 3880 break; 3881 case DVD_REPORT_CHALLENGE: 3882 length = sizeof(struct scsi_report_key_data_challenge); 3883 break; 3884 case DVD_REPORT_KEY1: 3885 length = sizeof(struct scsi_report_key_data_key1_key2); 3886 break; 3887 case DVD_REPORT_TITLE_KEY: 3888 length = sizeof(struct scsi_report_key_data_title); 3889 /* The lba field is only set for the title key */ 3890 lba = authinfo->lba; 3891 break; 3892 case DVD_REPORT_ASF: 3893 length = sizeof(struct scsi_report_key_data_asf); 3894 break; 3895 case DVD_REPORT_RPC: 3896 length = sizeof(struct scsi_report_key_data_rpc); 3897 break; 3898 case DVD_INVALIDATE_AGID: 3899 length = 0; 3900 break; 3901 default: 3902 return (EINVAL); 3903 } 3904 3905 if (length != 0) { 3906 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3907 } else 3908 databuf = NULL; 3909 3910 cam_periph_lock(periph); 3911 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3912 3913 scsi_report_key(&ccb->csio, 3914 /* retries */ cd_retry_count, 3915 /* cbfcnp */ cddone, 3916 /* tag_action */ MSG_SIMPLE_Q_TAG, 3917 /* lba */ lba, 3918 /* agid */ authinfo->agid, 3919 /* key_format */ authinfo->format, 3920 /* data_ptr */ databuf, 3921 /* dxfer_len */ length, 3922 /* sense_len */ SSD_FULL_SIZE, 3923 /* timeout */ 50000); 3924 3925 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3926 /*sense_flags*/SF_RETRY_UA); 3927 3928 if (error != 0) 3929 goto bailout; 3930 3931 if (ccb->csio.resid != 0) { 3932 xpt_print(periph->path, "warning, residual for report key " 3933 "command is %d\n", ccb->csio.resid); 3934 } 3935 3936 switch(authinfo->format) { 3937 case DVD_REPORT_AGID: { 3938 struct scsi_report_key_data_agid *agid_data; 3939 3940 agid_data = (struct scsi_report_key_data_agid *)databuf; 3941 3942 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3943 RKD_AGID_SHIFT; 3944 break; 3945 } 3946 case DVD_REPORT_CHALLENGE: { 3947 struct scsi_report_key_data_challenge *chal_data; 3948 3949 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3950 3951 bcopy(chal_data->challenge_key, authinfo->keychal, 3952 min(sizeof(chal_data->challenge_key), 3953 sizeof(authinfo->keychal))); 3954 break; 3955 } 3956 case DVD_REPORT_KEY1: { 3957 struct scsi_report_key_data_key1_key2 *key1_data; 3958 3959 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3960 3961 bcopy(key1_data->key1, authinfo->keychal, 3962 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3963 break; 3964 } 3965 case DVD_REPORT_TITLE_KEY: { 3966 struct scsi_report_key_data_title *title_data; 3967 3968 title_data = (struct scsi_report_key_data_title *)databuf; 3969 3970 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3971 RKD_TITLE_CPM_SHIFT; 3972 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3973 RKD_TITLE_CP_SEC_SHIFT; 3974 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3975 RKD_TITLE_CMGS_SHIFT; 3976 bcopy(title_data->title_key, authinfo->keychal, 3977 min(sizeof(title_data->title_key), 3978 sizeof(authinfo->keychal))); 3979 break; 3980 } 3981 case DVD_REPORT_ASF: { 3982 struct scsi_report_key_data_asf *asf_data; 3983 3984 asf_data = (struct scsi_report_key_data_asf *)databuf; 3985 3986 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 3987 break; 3988 } 3989 case DVD_REPORT_RPC: { 3990 struct scsi_report_key_data_rpc *rpc_data; 3991 3992 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 3993 3994 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 3995 RKD_RPC_TYPE_SHIFT; 3996 authinfo->vend_rsts = 3997 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 3998 RKD_RPC_VENDOR_RESET_SHIFT; 3999 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4000 authinfo->region = rpc_data->region_mask; 4001 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4002 break; 4003 } 4004 case DVD_INVALIDATE_AGID: 4005 break; 4006 default: 4007 /* This should be impossible, since we checked above */ 4008 error = EINVAL; 4009 goto bailout; 4010 break; /* NOTREACHED */ 4011 } 4012 4013bailout: 4014 xpt_release_ccb(ccb); 4015 cam_periph_unlock(periph); 4016 4017 if (databuf != NULL) 4018 free(databuf, M_DEVBUF); 4019 4020 return(error); 4021} 4022 4023static int 4024cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4025{ 4026 union ccb *ccb; 4027 u_int8_t *databuf; 4028 int length; 4029 int error; 4030 4031 error = 0; 4032 databuf = NULL; 4033 4034 switch(authinfo->format) { 4035 case DVD_SEND_CHALLENGE: { 4036 struct scsi_report_key_data_challenge *challenge_data; 4037 4038 length = sizeof(*challenge_data); 4039 4040 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4041 4042 databuf = (u_int8_t *)challenge_data; 4043 4044 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4045 challenge_data->data_len); 4046 4047 bcopy(authinfo->keychal, challenge_data->challenge_key, 4048 min(sizeof(authinfo->keychal), 4049 sizeof(challenge_data->challenge_key))); 4050 break; 4051 } 4052 case DVD_SEND_KEY2: { 4053 struct scsi_report_key_data_key1_key2 *key2_data; 4054 4055 length = sizeof(*key2_data); 4056 4057 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4058 4059 databuf = (u_int8_t *)key2_data; 4060 4061 scsi_ulto2b(length - sizeof(key2_data->data_len), 4062 key2_data->data_len); 4063 4064 bcopy(authinfo->keychal, key2_data->key1, 4065 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4066 4067 break; 4068 } 4069 case DVD_SEND_RPC: { 4070 struct scsi_send_key_data_rpc *rpc_data; 4071 4072 length = sizeof(*rpc_data); 4073 4074 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4075 4076 databuf = (u_int8_t *)rpc_data; 4077 4078 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4079 rpc_data->data_len); 4080 4081 rpc_data->region_code = authinfo->region; 4082 break; 4083 } 4084 default: 4085 return (EINVAL); 4086 } 4087 4088 cam_periph_lock(periph); 4089 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4090 4091 scsi_send_key(&ccb->csio, 4092 /* retries */ cd_retry_count, 4093 /* cbfcnp */ cddone, 4094 /* tag_action */ MSG_SIMPLE_Q_TAG, 4095 /* agid */ authinfo->agid, 4096 /* key_format */ authinfo->format, 4097 /* data_ptr */ databuf, 4098 /* dxfer_len */ length, 4099 /* sense_len */ SSD_FULL_SIZE, 4100 /* timeout */ 50000); 4101 4102 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4103 /*sense_flags*/SF_RETRY_UA); 4104 4105 xpt_release_ccb(ccb); 4106 cam_periph_unlock(periph); 4107 4108 if (databuf != NULL) 4109 free(databuf, M_DEVBUF); 4110 4111 return(error); 4112} 4113 4114static int 4115cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4116{ 4117 union ccb *ccb; 4118 u_int8_t *databuf; 4119 u_int32_t address; 4120 int error; 4121 int length; 4122 4123 error = 0; 4124 databuf = NULL; 4125 /* The address is reserved for many of the formats */ 4126 address = 0; 4127 4128 switch(dvdstruct->format) { 4129 case DVD_STRUCT_PHYSICAL: 4130 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4131 break; 4132 case DVD_STRUCT_COPYRIGHT: 4133 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4134 break; 4135 case DVD_STRUCT_DISCKEY: 4136 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4137 break; 4138 case DVD_STRUCT_BCA: 4139 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4140 break; 4141 case DVD_STRUCT_MANUFACT: 4142 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4143 break; 4144 case DVD_STRUCT_CMI: 4145 return (ENODEV); 4146 case DVD_STRUCT_PROTDISCID: 4147 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4148 break; 4149 case DVD_STRUCT_DISCKEYBLOCK: 4150 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4151 break; 4152 case DVD_STRUCT_DDS: 4153 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4154 break; 4155 case DVD_STRUCT_MEDIUM_STAT: 4156 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4157 break; 4158 case DVD_STRUCT_SPARE_AREA: 4159 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4160 break; 4161 case DVD_STRUCT_RMD_LAST: 4162 return (ENODEV); 4163 case DVD_STRUCT_RMD_RMA: 4164 return (ENODEV); 4165 case DVD_STRUCT_PRERECORDED: 4166 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4167 break; 4168 case DVD_STRUCT_UNIQUEID: 4169 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4170 break; 4171 case DVD_STRUCT_DCB: 4172 return (ENODEV); 4173 case DVD_STRUCT_LIST: 4174 /* 4175 * This is the maximum allocation length for the READ DVD 4176 * STRUCTURE command. There's nothing in the MMC3 spec 4177 * that indicates a limit in the amount of data that can 4178 * be returned from this call, other than the limits 4179 * imposed by the 2-byte length variables. 4180 */ 4181 length = 65535; 4182 break; 4183 default: 4184 return (EINVAL); 4185 } 4186 4187 if (length != 0) { 4188 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4189 } else 4190 databuf = NULL; 4191 4192 cam_periph_lock(periph); 4193 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4194 4195 scsi_read_dvd_structure(&ccb->csio, 4196 /* retries */ cd_retry_count, 4197 /* cbfcnp */ cddone, 4198 /* tag_action */ MSG_SIMPLE_Q_TAG, 4199 /* lba */ address, 4200 /* layer_number */ dvdstruct->layer_num, 4201 /* key_format */ dvdstruct->format, 4202 /* agid */ dvdstruct->agid, 4203 /* data_ptr */ databuf, 4204 /* dxfer_len */ length, 4205 /* sense_len */ SSD_FULL_SIZE, 4206 /* timeout */ 50000); 4207 4208 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4209 /*sense_flags*/SF_RETRY_UA); 4210 4211 if (error != 0) 4212 goto bailout; 4213 4214 switch(dvdstruct->format) { 4215 case DVD_STRUCT_PHYSICAL: { 4216 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4217 struct dvd_layer *outlayer; 4218 struct scsi_read_dvd_struct_data_physical *phys_data; 4219 4220 phys_data = 4221 (struct scsi_read_dvd_struct_data_physical *)databuf; 4222 inlayer = &phys_data->layer_desc; 4223 outlayer = (struct dvd_layer *)&dvdstruct->data; 4224 4225 dvdstruct->length = sizeof(*inlayer); 4226 4227 outlayer->book_type = (inlayer->book_type_version & 4228 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4229 outlayer->book_version = (inlayer->book_type_version & 4230 RDSD_BOOK_VERSION_MASK); 4231 outlayer->disc_size = (inlayer->disc_size_max_rate & 4232 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4233 outlayer->max_rate = (inlayer->disc_size_max_rate & 4234 RDSD_MAX_RATE_MASK); 4235 outlayer->nlayers = (inlayer->layer_info & 4236 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4237 outlayer->track_path = (inlayer->layer_info & 4238 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4239 outlayer->layer_type = (inlayer->layer_info & 4240 RDSD_LAYER_TYPE_MASK); 4241 outlayer->linear_density = (inlayer->density & 4242 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4243 outlayer->track_density = (inlayer->density & 4244 RDSD_TRACK_DENSITY_MASK); 4245 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4246 RDSD_BCA_SHIFT; 4247 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4248 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4249 outlayer->end_sector_l0 = 4250 scsi_3btoul(inlayer->end_sector_layer0); 4251 break; 4252 } 4253 case DVD_STRUCT_COPYRIGHT: { 4254 struct scsi_read_dvd_struct_data_copyright *copy_data; 4255 4256 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4257 databuf; 4258 4259 dvdstruct->cpst = copy_data->cps_type; 4260 dvdstruct->rmi = copy_data->region_info; 4261 dvdstruct->length = 0; 4262 4263 break; 4264 } 4265 default: 4266 /* 4267 * Tell the user what the overall length is, no matter 4268 * what we can actually fit in the data buffer. 4269 */ 4270 dvdstruct->length = length - ccb->csio.resid - 4271 sizeof(struct scsi_read_dvd_struct_data_header); 4272 4273 /* 4274 * But only actually copy out the smaller of what we read 4275 * in or what the structure can take. 4276 */ 4277 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4278 dvdstruct->data, 4279 min(sizeof(dvdstruct->data), dvdstruct->length)); 4280 break; 4281 } 4282 4283bailout: 4284 xpt_release_ccb(ccb); 4285 cam_periph_unlock(periph); 4286 4287 if (databuf != NULL) 4288 free(databuf, M_DEVBUF); 4289 4290 return(error); 4291} 4292 4293void 4294scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4295 void (*cbfcnp)(struct cam_periph *, union ccb *), 4296 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4297 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4298 u_int8_t sense_len, u_int32_t timeout) 4299{ 4300 struct scsi_report_key *scsi_cmd; 4301 4302 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4303 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4304 scsi_cmd->opcode = REPORT_KEY; 4305 scsi_ulto4b(lba, scsi_cmd->lba); 4306 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4307 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4308 (key_format & RK_KF_KEYFORMAT_MASK); 4309 4310 cam_fill_csio(csio, 4311 retries, 4312 cbfcnp, 4313 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4314 tag_action, 4315 /*data_ptr*/ data_ptr, 4316 /*dxfer_len*/ dxfer_len, 4317 sense_len, 4318 sizeof(*scsi_cmd), 4319 timeout); 4320} 4321 4322void 4323scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4324 void (*cbfcnp)(struct cam_periph *, union ccb *), 4325 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4326 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4327 u_int32_t timeout) 4328{ 4329 struct scsi_send_key *scsi_cmd; 4330 4331 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4332 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4333 scsi_cmd->opcode = SEND_KEY; 4334 4335 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4336 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4337 (key_format & RK_KF_KEYFORMAT_MASK); 4338 4339 cam_fill_csio(csio, 4340 retries, 4341 cbfcnp, 4342 /*flags*/ CAM_DIR_OUT, 4343 tag_action, 4344 /*data_ptr*/ data_ptr, 4345 /*dxfer_len*/ dxfer_len, 4346 sense_len, 4347 sizeof(*scsi_cmd), 4348 timeout); 4349} 4350 4351 4352void 4353scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4354 void (*cbfcnp)(struct cam_periph *, union ccb *), 4355 u_int8_t tag_action, u_int32_t address, 4356 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4357 u_int8_t *data_ptr, u_int32_t dxfer_len, 4358 u_int8_t sense_len, u_int32_t timeout) 4359{ 4360 struct scsi_read_dvd_structure *scsi_cmd; 4361 4362 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4363 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4364 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4365 4366 scsi_ulto4b(address, scsi_cmd->address); 4367 scsi_cmd->layer_number = layer_number; 4368 scsi_cmd->format = format; 4369 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4370 /* The AGID is the top two bits of this byte */ 4371 scsi_cmd->agid = agid << 6; 4372 4373 cam_fill_csio(csio, 4374 retries, 4375 cbfcnp, 4376 /*flags*/ CAM_DIR_IN, 4377 tag_action, 4378 /*data_ptr*/ data_ptr, 4379 /*dxfer_len*/ dxfer_len, 4380 sense_len, 4381 sizeof(*scsi_cmd), 4382 timeout); 4383} 4384