scsi_cd.c revision 256216
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/9/sys/cam/scsi/scsi_cd.c 256216 2013-10-09 18:58:28Z mav $"); 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_WAITING = 0x03, 122 CD_CCB_TUR = 0x04, 123 CD_CCB_TYPE_MASK = 0x0F, 124 CD_CCB_RETRY_UA = 0x10 125} cd_ccb_state; 126 127typedef enum { 128 CHANGER_TIMEOUT_SCHED = 0x01, 129 CHANGER_SHORT_TMOUT_SCHED = 0x02, 130 CHANGER_MANUAL_CALL = 0x04, 131 CHANGER_NEED_TIMEOUT = 0x08 132} cd_changer_flags; 133 134#define ccb_state ppriv_field0 135#define ccb_bp ppriv_ptr1 136 137struct cd_tocdata { 138 struct ioc_toc_header header; 139 struct cd_toc_entry entries[100]; 140}; 141 142struct cd_toc_single { 143 struct ioc_toc_header header; 144 struct cd_toc_entry entry; 145}; 146 147typedef enum { 148 CD_STATE_PROBE, 149 CD_STATE_NORMAL 150} cd_state; 151 152struct cd_softc { 153 cam_pinfo pinfo; 154 cd_state state; 155 volatile cd_flags flags; 156 struct bio_queue_head bio_queue; 157 LIST_HEAD(, ccb_hdr) pending_ccbs; 158 struct cd_params params; 159 union ccb saved_ccb; 160 cd_quirks quirks; 161 STAILQ_ENTRY(cd_softc) changer_links; 162 struct cdchanger *changer; 163 int bufs_left; 164 struct cam_periph *periph; 165 int minimum_command_size; 166 int outstanding_cmds; 167 int tur; 168 struct task sysctl_task; 169 struct sysctl_ctx_list sysctl_ctx; 170 struct sysctl_oid *sysctl_tree; 171 STAILQ_HEAD(, cd_mode_params) mode_queue; 172 struct cd_tocdata toc; 173 struct disk *disk; 174 struct callout mediapoll_c; 175}; 176 177struct cd_page_sizes { 178 int page; 179 int page_size; 180}; 181 182static struct cd_page_sizes cd_page_size_table[] = 183{ 184 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 185}; 186 187struct cd_quirk_entry { 188 struct scsi_inquiry_pattern inq_pat; 189 cd_quirks quirks; 190}; 191 192/* 193 * The changer quirk entries aren't strictly necessary. Basically, what 194 * they do is tell cdregister() up front that a device is a changer. 195 * Otherwise, it will figure that fact out once it sees a LUN on the device 196 * that is greater than 0. If it is known up front that a device is a changer, 197 * all I/O to the device will go through the changer scheduling routines, as 198 * opposed to the "normal" CD code. 199 * 200 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 201 * your device hangs when it gets a 10 byte command. Adding a quirk just 202 * to get rid of the informative diagnostic message is not acceptable. All 203 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 204 * referenced in a comment along with the quirk) , and must be approved by 205 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 206 * be removed until the submitter can explain why they are needed. 207 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 208 * when the CAM_NEW_TRAN_CODE work is done. 209 */ 210static struct cd_quirk_entry cd_quirk_table[] = 211{ 212 { 213 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 214 /*quirks*/ CD_Q_CHANGER 215 }, 216 { 217 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 218 "*"}, /* quirks */ CD_Q_CHANGER 219 }, 220 { 221 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 222 /* quirks */ CD_Q_CHANGER 223 }, 224 { 225 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 226 /* quirks */ CD_Q_BCD_TRACKS 227 } 228}; 229 230static disk_open_t cdopen; 231static disk_close_t cdclose; 232static disk_ioctl_t cdioctl; 233static disk_strategy_t cdstrategy; 234 235static periph_init_t cdinit; 236static periph_ctor_t cdregister; 237static periph_dtor_t cdcleanup; 238static periph_start_t cdstart; 239static periph_oninv_t cdoninvalidate; 240static void cdasync(void *callback_arg, u_int32_t code, 241 struct cam_path *path, void *arg); 242static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 243static void cdshorttimeout(void *arg); 244static void cdschedule(struct cam_periph *periph, int priority); 245static void cdrunchangerqueue(void *arg); 246static void cdchangerschedule(struct cd_softc *softc); 247static int cdrunccb(union ccb *ccb, 248 int (*error_routine)(union ccb *ccb, 249 u_int32_t cam_flags, 250 u_int32_t sense_flags), 251 u_int32_t cam_flags, u_int32_t sense_flags); 252static union ccb *cdgetccb(struct cam_periph *periph, 253 u_int32_t priority); 254static void cddone(struct cam_periph *periph, 255 union ccb *start_ccb); 256static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 257static int cdgetpagesize(int page_num); 258static void cdprevent(struct cam_periph *periph, int action); 259static int cdcheckmedia(struct cam_periph *periph); 260static int cdsize(struct cam_periph *periph, u_int32_t *size); 261static int cd6byteworkaround(union ccb *ccb); 262static int cderror(union ccb *ccb, u_int32_t cam_flags, 263 u_int32_t sense_flags); 264static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 265 u_int32_t start, u_int8_t *data, 266 u_int32_t len, u_int32_t sense_flags); 267static int cdgetmode(struct cam_periph *periph, 268 struct cd_mode_params *data, u_int32_t page); 269static int cdsetmode(struct cam_periph *periph, 270 struct cd_mode_params *data); 271static int cdplay(struct cam_periph *periph, u_int32_t blk, 272 u_int32_t len); 273static int cdreadsubchannel(struct cam_periph *periph, 274 u_int32_t mode, u_int32_t format, 275 int track, 276 struct cd_sub_channel_info *data, 277 u_int32_t len); 278static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 279 u_int32_t starts, u_int32_t startf, 280 u_int32_t endm, u_int32_t ends, 281 u_int32_t endf); 282static int cdplaytracks(struct cam_periph *periph, 283 u_int32_t strack, u_int32_t sindex, 284 u_int32_t etrack, u_int32_t eindex); 285static int cdpause(struct cam_periph *periph, u_int32_t go); 286static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 287static int cdstartunit(struct cam_periph *periph, int load); 288static int cdsetspeed(struct cam_periph *periph, 289 u_int32_t rdspeed, u_int32_t wrspeed); 290static int cdreportkey(struct cam_periph *periph, 291 struct dvd_authinfo *authinfo); 292static int cdsendkey(struct cam_periph *periph, 293 struct dvd_authinfo *authinfo); 294static int cdreaddvdstructure(struct cam_periph *periph, 295 struct dvd_struct *dvdstruct); 296static timeout_t cdmediapoll; 297 298static struct periph_driver cddriver = 299{ 300 cdinit, "cd", 301 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 302}; 303 304PERIPHDRIVER_DECLARE(cd, cddriver); 305 306#ifndef CD_DEFAULT_POLL_PERIOD 307#define CD_DEFAULT_POLL_PERIOD 3 308#endif 309#ifndef CD_DEFAULT_RETRY 310#define CD_DEFAULT_RETRY 4 311#endif 312#ifndef CD_DEFAULT_TIMEOUT 313#define CD_DEFAULT_TIMEOUT 30000 314#endif 315#ifndef CHANGER_MIN_BUSY_SECONDS 316#define CHANGER_MIN_BUSY_SECONDS 5 317#endif 318#ifndef CHANGER_MAX_BUSY_SECONDS 319#define CHANGER_MAX_BUSY_SECONDS 15 320#endif 321 322static int cd_poll_period = CD_DEFAULT_POLL_PERIOD; 323static int cd_retry_count = CD_DEFAULT_RETRY; 324static int cd_timeout = CD_DEFAULT_TIMEOUT; 325static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 326static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 327 328static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 329static SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, 330 "CD Changer"); 331SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RW, 332 &cd_poll_period, 0, "Media polling period in seconds"); 333TUNABLE_INT("kern.cam.cd.poll_period", &cd_poll_period); 334SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, 335 &cd_retry_count, 0, "Normal I/O retry count"); 336TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); 337SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RW, 338 &cd_timeout, 0, "Timeout, in us, for read operations"); 339TUNABLE_INT("kern.cam.cd.timeout", &cd_timeout); 340SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 341 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 342TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 343SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 344 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 345TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 346 347struct cdchanger { 348 path_id_t path_id; 349 target_id_t target_id; 350 int num_devices; 351 struct camq devq; 352 struct timeval start_time; 353 struct cd_softc *cur_device; 354 struct callout short_handle; 355 struct callout long_handle; 356 volatile cd_changer_flags flags; 357 STAILQ_ENTRY(cdchanger) changer_links; 358 STAILQ_HEAD(chdevlist, cd_softc) chluns; 359}; 360 361static struct mtx changerq_mtx; 362static STAILQ_HEAD(changerlist, cdchanger) changerq; 363static int num_changers; 364 365static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 366 367static void 368cdinit(void) 369{ 370 cam_status status; 371 372 mtx_init(&changerq_mtx, "cdchangerq", "SCSI CD Changer List", MTX_DEF); 373 STAILQ_INIT(&changerq); 374 375 /* 376 * Install a global async callback. This callback will 377 * receive async callbacks like "new device found". 378 */ 379 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 380 381 if (status != CAM_REQ_CMP) { 382 printf("cd: Failed to attach master async callback " 383 "due to status 0x%x!\n", status); 384 } 385} 386 387/* 388 * Callback from GEOM, called when it has finished cleaning up its 389 * resources. 390 */ 391static void 392cddiskgonecb(struct disk *dp) 393{ 394 struct cam_periph *periph; 395 396 periph = (struct cam_periph *)dp->d_drv1; 397 cam_periph_release(periph); 398} 399 400static void 401cdoninvalidate(struct cam_periph *periph) 402{ 403 struct cd_softc *softc; 404 405 softc = (struct cd_softc *)periph->softc; 406 407 /* 408 * De-register any async callbacks. 409 */ 410 xpt_register_async(0, cdasync, periph, periph->path); 411 412 softc->flags |= CD_FLAG_INVALID; 413 414 /* 415 * Return all queued I/O with ENXIO. 416 * XXX Handle any transactions queued to the card 417 * with XPT_ABORT_CCB. 418 */ 419 bioq_flush(&softc->bio_queue, NULL, ENXIO); 420 421 /* 422 * If this device is part of a changer, and it was scheduled 423 * to run, remove it from the run queue since we just nuked 424 * all of its scheduled I/O. 425 */ 426 if ((softc->flags & CD_FLAG_CHANGER) 427 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 428 camq_remove(&softc->changer->devq, softc->pinfo.index); 429 430 disk_gone(softc->disk); 431 xpt_print(periph->path, "lost device, %d refs\n", periph->refcount); 432} 433 434static void 435cdcleanup(struct cam_periph *periph) 436{ 437 struct cd_softc *softc; 438 439 softc = (struct cd_softc *)periph->softc; 440 441 xpt_print(periph->path, "removing device entry\n"); 442 443 /* 444 * In the queued, non-active case, the device in question 445 * has already been removed from the changer run queue. Since this 446 * device is active, we need to de-activate it, and schedule 447 * another device to run. (if there is another one to run) 448 */ 449 if ((softc->flags & CD_FLAG_CHANGER) 450 && (softc->flags & CD_FLAG_ACTIVE)) { 451 452 /* 453 * The purpose of the short timeout is soley to determine 454 * whether the current device has finished or not. Well, 455 * since we're removing the active device, we know that it 456 * is finished. So, get rid of the short timeout. 457 * Otherwise, if we're in the time period before the short 458 * timeout fires, and there are no other devices in the 459 * queue to run, there won't be any other device put in the 460 * active slot. i.e., when we call cdrunchangerqueue() 461 * below, it won't do anything. Then, when the short 462 * timeout fires, it'll look at the "current device", which 463 * we are free below, and possibly panic the kernel on a 464 * bogus pointer reference. 465 * 466 * The long timeout doesn't really matter, since we 467 * decrement the qfrozen_cnt to indicate that there is 468 * nothing in the active slot now. Therefore, there won't 469 * be any bogus pointer references there. 470 */ 471 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 472 callout_stop(&softc->changer->short_handle); 473 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 474 } 475 softc->changer->devq.qfrozen_cnt--; 476 softc->changer->flags |= CHANGER_MANUAL_CALL; 477 cdrunchangerqueue(softc->changer); 478 } 479 480 /* 481 * If we're removing the last device on the changer, go ahead and 482 * remove the changer device structure. 483 */ 484 if ((softc->flags & CD_FLAG_CHANGER) 485 && (--softc->changer->num_devices == 0)) { 486 487 /* 488 * Theoretically, there shouldn't be any timeouts left, but 489 * I'm not completely sure that that will be the case. So, 490 * it won't hurt to check and see if there are any left. 491 */ 492 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 493 callout_stop(&softc->changer->long_handle); 494 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 495 } 496 497 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 498 callout_stop(&softc->changer->short_handle); 499 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 500 } 501 502 mtx_lock(&changerq_mtx); 503 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 504 changer_links); 505 num_changers--; 506 mtx_unlock(&changerq_mtx); 507 xpt_print(periph->path, "removing changer entry\n"); 508 free(softc->changer, M_DEVBUF); 509 } 510 cam_periph_unlock(periph); 511 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 512 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 513 xpt_print(periph->path, "can't remove sysctl context\n"); 514 } 515 516 callout_drain(&softc->mediapoll_c); 517 disk_destroy(softc->disk); 518 free(softc, M_DEVBUF); 519 cam_periph_lock(periph); 520} 521 522static void 523cdasync(void *callback_arg, u_int32_t code, 524 struct cam_path *path, void *arg) 525{ 526 struct cam_periph *periph; 527 struct cd_softc *softc; 528 529 periph = (struct cam_periph *)callback_arg; 530 switch (code) { 531 case AC_FOUND_DEVICE: 532 { 533 struct ccb_getdev *cgd; 534 cam_status status; 535 536 cgd = (struct ccb_getdev *)arg; 537 if (cgd == NULL) 538 break; 539 540 if (cgd->protocol != PROTO_SCSI) 541 break; 542 543 if (SID_TYPE(&cgd->inq_data) != T_CDROM 544 && SID_TYPE(&cgd->inq_data) != T_WORM) 545 break; 546 547 /* 548 * Allocate a peripheral instance for 549 * this device and start the probe 550 * process. 551 */ 552 status = cam_periph_alloc(cdregister, cdoninvalidate, 553 cdcleanup, cdstart, 554 "cd", CAM_PERIPH_BIO, 555 cgd->ccb_h.path, cdasync, 556 AC_FOUND_DEVICE, cgd); 557 558 if (status != CAM_REQ_CMP 559 && status != CAM_REQ_INPROG) 560 printf("cdasync: Unable to attach new device " 561 "due to status 0x%x\n", status); 562 563 break; 564 } 565 case AC_UNIT_ATTENTION: 566 { 567 union ccb *ccb; 568 int error_code, sense_key, asc, ascq; 569 570 softc = (struct cd_softc *)periph->softc; 571 ccb = (union ccb *)arg; 572 573 /* 574 * Handle all media change UNIT ATTENTIONs except 575 * our own, as they will be handled by cderror(). 576 */ 577 if (xpt_path_periph(ccb->ccb_h.path) != periph && 578 scsi_extract_sense_ccb(ccb, 579 &error_code, &sense_key, &asc, &ascq)) { 580 if (asc == 0x28 && ascq == 0x00) 581 disk_media_changed(softc->disk, M_NOWAIT); 582 } 583 cam_periph_async(periph, code, path, arg); 584 break; 585 } 586 case AC_SCSI_AEN: 587 softc = (struct cd_softc *)periph->softc; 588 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 589 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 590 softc->tur = 1; 591 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 592 } 593 } 594 /* FALLTHROUGH */ 595 case AC_SENT_BDR: 596 case AC_BUS_RESET: 597 { 598 struct ccb_hdr *ccbh; 599 600 softc = (struct cd_softc *)periph->softc; 601 /* 602 * Don't fail on the expected unit attention 603 * that will occur. 604 */ 605 softc->flags |= CD_FLAG_RETRY_UA; 606 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 607 ccbh->ccb_state |= CD_CCB_RETRY_UA; 608 /* FALLTHROUGH */ 609 } 610 default: 611 cam_periph_async(periph, code, path, arg); 612 break; 613 } 614} 615 616static void 617cdsysctlinit(void *context, int pending) 618{ 619 struct cam_periph *periph; 620 struct cd_softc *softc; 621 char tmpstr[80], tmpstr2[80]; 622 623 periph = (struct cam_periph *)context; 624 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 625 return; 626 627 softc = (struct cd_softc *)periph->softc; 628 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 629 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 630 631 sysctl_ctx_init(&softc->sysctl_ctx); 632 softc->flags |= CD_FLAG_SCTX_INIT; 633 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 634 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 635 tmpstr2, CTLFLAG_RD, 0, tmpstr); 636 637 if (softc->sysctl_tree == NULL) { 638 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 639 cam_periph_release(periph); 640 return; 641 } 642 643 /* 644 * Now register the sysctl handler, so the user can the value on 645 * the fly. 646 */ 647 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 648 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 649 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 650 "Minimum CDB size"); 651 652 cam_periph_release(periph); 653} 654 655/* 656 * We have a handler function for this so we can check the values when the 657 * user sets them, instead of every time we look at them. 658 */ 659static int 660cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 661{ 662 int error, value; 663 664 value = *(int *)arg1; 665 666 error = sysctl_handle_int(oidp, &value, 0, req); 667 668 if ((error != 0) 669 || (req->newptr == NULL)) 670 return (error); 671 672 /* 673 * The only real values we can have here are 6 or 10. I don't 674 * really forsee having 12 be an option at any time in the future. 675 * So if the user sets something less than or equal to 6, we'll set 676 * it to 6. If he sets something greater than 6, we'll set it to 10. 677 * 678 * I suppose we could just return an error here for the wrong values, 679 * but I don't think it's necessary to do so, as long as we can 680 * determine the user's intent without too much trouble. 681 */ 682 if (value < 6) 683 value = 6; 684 else if (value > 6) 685 value = 10; 686 687 *(int *)arg1 = value; 688 689 return (0); 690} 691 692static cam_status 693cdregister(struct cam_periph *periph, void *arg) 694{ 695 struct cd_softc *softc; 696 struct ccb_pathinq cpi; 697 struct ccb_getdev *cgd; 698 char tmpstr[80]; 699 caddr_t match; 700 701 cgd = (struct ccb_getdev *)arg; 702 if (cgd == NULL) { 703 printf("cdregister: no getdev CCB, can't register device\n"); 704 return(CAM_REQ_CMP_ERR); 705 } 706 707 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 708 M_NOWAIT | M_ZERO); 709 if (softc == NULL) { 710 printf("cdregister: Unable to probe new device. " 711 "Unable to allocate softc\n"); 712 return(CAM_REQ_CMP_ERR); 713 } 714 715 LIST_INIT(&softc->pending_ccbs); 716 STAILQ_INIT(&softc->mode_queue); 717 softc->state = CD_STATE_PROBE; 718 bioq_init(&softc->bio_queue); 719 if (SID_IS_REMOVABLE(&cgd->inq_data)) 720 softc->flags |= CD_FLAG_DISC_REMOVABLE; 721 722 periph->softc = softc; 723 softc->periph = periph; 724 725 /* 726 * See if this device has any quirks. 727 */ 728 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 729 (caddr_t)cd_quirk_table, 730 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 731 sizeof(*cd_quirk_table), scsi_inquiry_match); 732 733 if (match != NULL) 734 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 735 else 736 softc->quirks = CD_Q_NONE; 737 738 /* Check if the SIM does not want 6 byte commands */ 739 bzero(&cpi, sizeof(cpi)); 740 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 741 cpi.ccb_h.func_code = XPT_PATH_INQ; 742 xpt_action((union ccb *)&cpi); 743 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 744 softc->quirks |= CD_Q_10_BYTE_ONLY; 745 746 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 747 748 /* The default is 6 byte commands, unless quirked otherwise */ 749 if (softc->quirks & CD_Q_10_BYTE_ONLY) 750 softc->minimum_command_size = 10; 751 else 752 softc->minimum_command_size = 6; 753 754 /* 755 * Refcount and block open attempts until we are setup 756 * Can't block 757 */ 758 (void)cam_periph_hold(periph, PRIBIO); 759 cam_periph_unlock(periph); 760 /* 761 * Load the user's default, if any. 762 */ 763 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 764 periph->unit_number); 765 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 766 767 /* 6 and 10 are the only permissible values here. */ 768 if (softc->minimum_command_size < 6) 769 softc->minimum_command_size = 6; 770 else if (softc->minimum_command_size > 6) 771 softc->minimum_command_size = 10; 772 773 /* 774 * We need to register the statistics structure for this device, 775 * but we don't have the blocksize yet for it. So, we register 776 * the structure and indicate that we don't have the blocksize 777 * yet. Unlike other SCSI peripheral drivers, we explicitly set 778 * the device type here to be CDROM, rather than just ORing in 779 * the device type. This is because this driver can attach to either 780 * CDROM or WORM devices, and we want this peripheral driver to 781 * show up in the devstat list as a CD peripheral driver, not a 782 * WORM peripheral driver. WORM drives will also have the WORM 783 * driver attached to them. 784 */ 785 softc->disk = disk_alloc(); 786 softc->disk->d_devstat = devstat_new_entry("cd", 787 periph->unit_number, 0, 788 DEVSTAT_BS_UNAVAILABLE, 789 DEVSTAT_TYPE_CDROM | 790 XPORT_DEVSTAT_TYPE(cpi.transport), 791 DEVSTAT_PRIORITY_CD); 792 softc->disk->d_open = cdopen; 793 softc->disk->d_close = cdclose; 794 softc->disk->d_strategy = cdstrategy; 795 softc->disk->d_gone = cddiskgonecb; 796 softc->disk->d_ioctl = cdioctl; 797 softc->disk->d_name = "cd"; 798 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 799 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 800 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 801 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 802 cgd->inq_data.product, sizeof(cgd->inq_data.product), 803 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 804 softc->disk->d_unit = periph->unit_number; 805 softc->disk->d_drv1 = periph; 806 if (cpi.maxio == 0) 807 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 808 else if (cpi.maxio > MAXPHYS) 809 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 810 else 811 softc->disk->d_maxsize = cpi.maxio; 812 softc->disk->d_flags = 0; 813 softc->disk->d_hba_vendor = cpi.hba_vendor; 814 softc->disk->d_hba_device = cpi.hba_device; 815 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 816 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 817 818 /* 819 * Acquire a reference to the periph before we register with GEOM. 820 * We'll release this reference once GEOM calls us back (via 821 * dadiskgonecb()) telling us that our provider has been freed. 822 */ 823 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 824 xpt_print(periph->path, "%s: lost periph during " 825 "registration!\n", __func__); 826 cam_periph_lock(periph); 827 return (CAM_REQ_CMP_ERR); 828 } 829 830 disk_create(softc->disk, DISK_VERSION); 831 cam_periph_lock(periph); 832 833 /* 834 * Add an async callback so that we get 835 * notified if this device goes away. 836 */ 837 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 838 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 839 840 /* 841 * If the target lun is greater than 0, we most likely have a CD 842 * changer device. Check the quirk entries as well, though, just 843 * in case someone has a CD tower with one lun per drive or 844 * something like that. Also, if we know up front that a 845 * particular device is a changer, we can mark it as such starting 846 * with lun 0, instead of lun 1. It shouldn't be necessary to have 847 * a quirk entry to define something as a changer, however. 848 */ 849 if (((cgd->ccb_h.target_lun > 0) 850 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 851 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 852 struct cdchanger *nchanger; 853 struct cam_periph *nperiph; 854 struct cam_path *path; 855 cam_status status; 856 int found; 857 858 /* Set the changer flag in the current device's softc */ 859 softc->flags |= CD_FLAG_CHANGER; 860 861 /* 862 * Now, look around for an existing changer device with the 863 * same path and target ID as the current device. 864 */ 865 mtx_lock(&changerq_mtx); 866 for (found = 0, 867 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 868 nchanger != NULL; 869 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 870 if ((nchanger->path_id == cgd->ccb_h.path_id) 871 && (nchanger->target_id == cgd->ccb_h.target_id)) { 872 found = 1; 873 break; 874 } 875 } 876 mtx_unlock(&changerq_mtx); 877 878 /* 879 * If we found a matching entry, just add this device to 880 * the list of devices on this changer. 881 */ 882 if (found == 1) { 883 struct chdevlist *chlunhead; 884 885 chlunhead = &nchanger->chluns; 886 887 /* 888 * XXX KDM look at consolidating this code with the 889 * code below in a separate function. 890 */ 891 892 /* 893 * Create a path with lun id 0, and see if we can 894 * find a matching device 895 */ 896 status = xpt_create_path(&path, /*periph*/ periph, 897 cgd->ccb_h.path_id, 898 cgd->ccb_h.target_id, 0); 899 900 if ((status == CAM_REQ_CMP) 901 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 902 struct cd_softc *nsoftc; 903 904 nsoftc = (struct cd_softc *)nperiph->softc; 905 906 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 907 nsoftc->flags |= CD_FLAG_CHANGER; 908 nchanger->num_devices++; 909 if (camq_resize(&nchanger->devq, 910 nchanger->num_devices)!=CAM_REQ_CMP){ 911 printf("cdregister: " 912 "camq_resize " 913 "failed, changer " 914 "support may " 915 "be messed up\n"); 916 } 917 nsoftc->changer = nchanger; 918 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 919 920 STAILQ_INSERT_TAIL(&nchanger->chluns, 921 nsoftc,changer_links); 922 } 923 xpt_free_path(path); 924 } else if (status == CAM_REQ_CMP) 925 xpt_free_path(path); 926 else { 927 printf("cdregister: unable to allocate path\n" 928 "cdregister: changer support may be " 929 "broken\n"); 930 } 931 932 nchanger->num_devices++; 933 934 softc->changer = nchanger; 935 softc->pinfo.index = CAM_UNQUEUED_INDEX; 936 937 if (camq_resize(&nchanger->devq, 938 nchanger->num_devices) != CAM_REQ_CMP) { 939 printf("cdregister: camq_resize " 940 "failed, changer support may " 941 "be messed up\n"); 942 } 943 944 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 945 } 946 /* 947 * In this case, we don't already have an entry for this 948 * particular changer, so we need to create one, add it to 949 * the queue, and queue this device on the list for this 950 * changer. Before we queue this device, however, we need 951 * to search for lun id 0 on this target, and add it to the 952 * queue first, if it exists. (and if it hasn't already 953 * been marked as part of the changer.) 954 */ 955 else { 956 nchanger = malloc(sizeof(struct cdchanger), 957 M_DEVBUF, M_NOWAIT | M_ZERO); 958 if (nchanger == NULL) { 959 softc->flags &= ~CD_FLAG_CHANGER; 960 printf("cdregister: unable to malloc " 961 "changer structure\ncdregister: " 962 "changer support disabled\n"); 963 964 /* 965 * Yes, gotos can be gross but in this case 966 * I think it's justified.. 967 */ 968 goto cdregisterexit; 969 } 970 if (camq_init(&nchanger->devq, 1) != 0) { 971 softc->flags &= ~CD_FLAG_CHANGER; 972 printf("cdregister: changer support " 973 "disabled\n"); 974 goto cdregisterexit; 975 } 976 977 nchanger->path_id = cgd->ccb_h.path_id; 978 nchanger->target_id = cgd->ccb_h.target_id; 979 980 /* this is superfluous, but it makes things clearer */ 981 nchanger->num_devices = 0; 982 983 STAILQ_INIT(&nchanger->chluns); 984 985 callout_init_mtx(&nchanger->long_handle, 986 periph->sim->mtx, 0); 987 callout_init_mtx(&nchanger->short_handle, 988 periph->sim->mtx, 0); 989 990 mtx_lock(&changerq_mtx); 991 num_changers++; 992 STAILQ_INSERT_TAIL(&changerq, nchanger, 993 changer_links); 994 mtx_unlock(&changerq_mtx); 995 996 /* 997 * Create a path with lun id 0, and see if we can 998 * find a matching device 999 */ 1000 status = xpt_create_path(&path, /*periph*/ periph, 1001 cgd->ccb_h.path_id, 1002 cgd->ccb_h.target_id, 0); 1003 1004 /* 1005 * If we were able to allocate the path, and if we 1006 * find a matching device and it isn't already 1007 * marked as part of a changer, then we add it to 1008 * the current changer. 1009 */ 1010 if ((status == CAM_REQ_CMP) 1011 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1012 && ((((struct cd_softc *)periph->softc)->flags & 1013 CD_FLAG_CHANGER) == 0)) { 1014 struct cd_softc *nsoftc; 1015 1016 nsoftc = (struct cd_softc *)nperiph->softc; 1017 1018 nsoftc->flags |= CD_FLAG_CHANGER; 1019 nchanger->num_devices++; 1020 if (camq_resize(&nchanger->devq, 1021 nchanger->num_devices) != CAM_REQ_CMP) { 1022 printf("cdregister: camq_resize " 1023 "failed, changer support may " 1024 "be messed up\n"); 1025 } 1026 nsoftc->changer = nchanger; 1027 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1028 1029 STAILQ_INSERT_TAIL(&nchanger->chluns, 1030 nsoftc, changer_links); 1031 xpt_free_path(path); 1032 } else if (status == CAM_REQ_CMP) 1033 xpt_free_path(path); 1034 else { 1035 printf("cdregister: unable to allocate path\n" 1036 "cdregister: changer support may be " 1037 "broken\n"); 1038 } 1039 1040 softc->changer = nchanger; 1041 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1042 nchanger->num_devices++; 1043 if (camq_resize(&nchanger->devq, 1044 nchanger->num_devices) != CAM_REQ_CMP) { 1045 printf("cdregister: camq_resize " 1046 "failed, changer support may " 1047 "be messed up\n"); 1048 } 1049 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1050 changer_links); 1051 } 1052 } 1053 1054 /* 1055 * Schedule a periodic media polling events. 1056 */ 1057 callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0); 1058 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1059 (softc->flags & CD_FLAG_CHANGER) == 0 && 1060 (cgd->inq_flags & SID_AEN) == 0 && 1061 cd_poll_period != 0) 1062 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1063 cdmediapoll, periph); 1064 1065cdregisterexit: 1066 1067 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1068 xpt_schedule(periph, CAM_PRIORITY_DEV); 1069 else 1070 cdschedule(periph, CAM_PRIORITY_DEV); 1071 1072 return(CAM_REQ_CMP); 1073} 1074 1075static int 1076cdopen(struct disk *dp) 1077{ 1078 struct cam_periph *periph; 1079 struct cd_softc *softc; 1080 int error; 1081 1082 periph = (struct cam_periph *)dp->d_drv1; 1083 softc = (struct cd_softc *)periph->softc; 1084 1085 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1086 return(ENXIO); 1087 1088 cam_periph_lock(periph); 1089 1090 if (softc->flags & CD_FLAG_INVALID) { 1091 cam_periph_release_locked(periph); 1092 cam_periph_unlock(periph); 1093 return(ENXIO); 1094 } 1095 1096 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1097 cam_periph_release_locked(periph); 1098 cam_periph_unlock(periph); 1099 return (error); 1100 } 1101 1102 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1103 ("cdopen\n")); 1104 1105 /* 1106 * Check for media, and set the appropriate flags. We don't bail 1107 * if we don't have media, but then we don't allow anything but the 1108 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1109 */ 1110 cdcheckmedia(periph); 1111 1112 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1113 cam_periph_unhold(periph); 1114 1115 cam_periph_unlock(periph); 1116 1117 return (0); 1118} 1119 1120static int 1121cdclose(struct disk *dp) 1122{ 1123 struct cam_periph *periph; 1124 struct cd_softc *softc; 1125 1126 periph = (struct cam_periph *)dp->d_drv1; 1127 softc = (struct cd_softc *)periph->softc; 1128 1129 cam_periph_lock(periph); 1130 if (cam_periph_hold(periph, PRIBIO) != 0) { 1131 cam_periph_unlock(periph); 1132 cam_periph_release(periph); 1133 return (0); 1134 } 1135 1136 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1137 ("cdclose\n")); 1138 1139 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1140 cdprevent(periph, PR_ALLOW); 1141 1142 /* 1143 * Since we're closing this CD, mark the blocksize as unavailable. 1144 * It will be marked as available when the CD is opened again. 1145 */ 1146 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1147 1148 /* 1149 * We'll check the media and toc again at the next open(). 1150 */ 1151 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1152 1153 cam_periph_unhold(periph); 1154 cam_periph_release_locked(periph); 1155 cam_periph_unlock(periph); 1156 1157 return (0); 1158} 1159 1160static void 1161cdshorttimeout(void *arg) 1162{ 1163 struct cdchanger *changer; 1164 1165 changer = (struct cdchanger *)arg; 1166 1167 /* Always clear the short timeout flag, since that's what we're in */ 1168 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1169 1170 /* 1171 * Check to see if there is any more pending or outstanding I/O for 1172 * this device. If not, move it out of the active slot. 1173 */ 1174 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1175 && (changer->cur_device->outstanding_cmds == 0)) { 1176 changer->flags |= CHANGER_MANUAL_CALL; 1177 cdrunchangerqueue(changer); 1178 } 1179} 1180 1181/* 1182 * This is a wrapper for xpt_schedule. It only applies to changers. 1183 */ 1184static void 1185cdschedule(struct cam_periph *periph, int priority) 1186{ 1187 struct cd_softc *softc; 1188 1189 softc = (struct cd_softc *)periph->softc; 1190 1191 /* 1192 * If this device isn't currently queued, and if it isn't 1193 * the active device, then we queue this device and run the 1194 * changer queue if there is no timeout scheduled to do it. 1195 * If this device is the active device, just schedule it 1196 * to run again. If this device is queued, there should be 1197 * a timeout in place already that will make sure it runs. 1198 */ 1199 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1200 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1201 /* 1202 * We don't do anything with the priority here. 1203 * This is strictly a fifo queue. 1204 */ 1205 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1206 softc->pinfo.generation = ++softc->changer->devq.generation; 1207 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1208 1209 /* 1210 * Since we just put a device in the changer queue, 1211 * check and see if there is a timeout scheduled for 1212 * this changer. If so, let the timeout handle 1213 * switching this device into the active slot. If 1214 * not, manually call the timeout routine to 1215 * bootstrap things. 1216 */ 1217 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1218 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1219 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1220 softc->changer->flags |= CHANGER_MANUAL_CALL; 1221 cdrunchangerqueue(softc->changer); 1222 } 1223 } else if ((softc->flags & CD_FLAG_ACTIVE) 1224 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1225 xpt_schedule(periph, priority); 1226} 1227 1228static void 1229cdrunchangerqueue(void *arg) 1230{ 1231 struct cd_softc *softc; 1232 struct cdchanger *changer; 1233 int called_from_timeout; 1234 1235 changer = (struct cdchanger *)arg; 1236 1237 /* 1238 * If we have NOT been called from cdstrategy() or cddone(), and 1239 * instead from a timeout routine, go ahead and clear the 1240 * timeout flag. 1241 */ 1242 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1243 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1244 called_from_timeout = 1; 1245 } else 1246 called_from_timeout = 0; 1247 1248 /* Always clear the manual call flag */ 1249 changer->flags &= ~CHANGER_MANUAL_CALL; 1250 1251 /* nothing to do if the queue is empty */ 1252 if (changer->devq.entries <= 0) { 1253 return; 1254 } 1255 1256 /* 1257 * If the changer queue is frozen, that means we have an active 1258 * device. 1259 */ 1260 if (changer->devq.qfrozen_cnt > 0) { 1261 1262 /* 1263 * We always need to reset the frozen count and clear the 1264 * active flag. 1265 */ 1266 changer->devq.qfrozen_cnt--; 1267 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1268 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1269 1270 if (changer->cur_device->outstanding_cmds > 0) { 1271 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1272 changer->cur_device->bufs_left = 1273 changer->cur_device->outstanding_cmds; 1274 if (called_from_timeout) { 1275 callout_reset(&changer->long_handle, 1276 changer_max_busy_seconds * hz, 1277 cdrunchangerqueue, changer); 1278 changer->flags |= CHANGER_TIMEOUT_SCHED; 1279 } 1280 return; 1281 } 1282 1283 /* 1284 * Check to see whether the current device has any I/O left 1285 * to do. If so, requeue it at the end of the queue. If 1286 * not, there is no need to requeue it. 1287 */ 1288 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1289 1290 changer->cur_device->pinfo.generation = 1291 ++changer->devq.generation; 1292 camq_insert(&changer->devq, 1293 (cam_pinfo *)changer->cur_device); 1294 } 1295 } 1296 1297 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1298 1299 changer->cur_device = softc; 1300 1301 changer->devq.qfrozen_cnt++; 1302 softc->flags |= CD_FLAG_ACTIVE; 1303 1304 /* Just in case this device is waiting */ 1305 wakeup(&softc->changer); 1306 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1307 1308 /* 1309 * Get rid of any pending timeouts, and set a flag to schedule new 1310 * ones so this device gets its full time quantum. 1311 */ 1312 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1313 callout_stop(&changer->long_handle); 1314 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1315 } 1316 1317 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1318 callout_stop(&changer->short_handle); 1319 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1320 } 1321 1322 /* 1323 * We need to schedule timeouts, but we only do this after the 1324 * first transaction has completed. This eliminates the changer 1325 * switch time. 1326 */ 1327 changer->flags |= CHANGER_NEED_TIMEOUT; 1328} 1329 1330static void 1331cdchangerschedule(struct cd_softc *softc) 1332{ 1333 struct cdchanger *changer; 1334 1335 changer = softc->changer; 1336 1337 /* 1338 * If this is a changer, and this is the current device, 1339 * and this device has at least the minimum time quantum to 1340 * run, see if we can switch it out. 1341 */ 1342 if ((softc->flags & CD_FLAG_ACTIVE) 1343 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1344 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1345 /* 1346 * We try three things here. The first is that we 1347 * check to see whether the schedule on completion 1348 * flag is set. If it is, we decrement the number 1349 * of buffers left, and if it's zero, we reschedule. 1350 * Next, we check to see whether the pending buffer 1351 * queue is empty and whether there are no 1352 * outstanding transactions. If so, we reschedule. 1353 * Next, we see if the pending buffer queue is empty. 1354 * If it is, we set the number of buffers left to 1355 * the current active buffer count and set the 1356 * schedule on complete flag. 1357 */ 1358 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1359 if (--softc->bufs_left == 0) { 1360 softc->changer->flags |= 1361 CHANGER_MANUAL_CALL; 1362 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1363 cdrunchangerqueue(softc->changer); 1364 } 1365 } else if ((bioq_first(&softc->bio_queue) == NULL) 1366 && (softc->outstanding_cmds == 0)) { 1367 softc->changer->flags |= CHANGER_MANUAL_CALL; 1368 cdrunchangerqueue(softc->changer); 1369 } 1370 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1371 && (softc->flags & CD_FLAG_ACTIVE)) { 1372 1373 /* 1374 * Now that the first transaction to this 1375 * particular device has completed, we can go ahead 1376 * and schedule our timeouts. 1377 */ 1378 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1379 callout_reset(&changer->long_handle, 1380 changer_max_busy_seconds * hz, 1381 cdrunchangerqueue, changer); 1382 changer->flags |= CHANGER_TIMEOUT_SCHED; 1383 } else 1384 printf("cdchangerschedule: already have a long" 1385 " timeout!\n"); 1386 1387 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1388 callout_reset(&changer->short_handle, 1389 changer_min_busy_seconds * hz, 1390 cdshorttimeout, changer); 1391 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1392 } else 1393 printf("cdchangerschedule: already have a short " 1394 "timeout!\n"); 1395 1396 /* 1397 * We just scheduled timeouts, no need to schedule 1398 * more. 1399 */ 1400 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1401 1402 } 1403} 1404 1405static int 1406cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1407 u_int32_t cam_flags, 1408 u_int32_t sense_flags), 1409 u_int32_t cam_flags, u_int32_t sense_flags) 1410{ 1411 struct cd_softc *softc; 1412 struct cam_periph *periph; 1413 int error; 1414 1415 periph = xpt_path_periph(ccb->ccb_h.path); 1416 softc = (struct cd_softc *)periph->softc; 1417 1418 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1419 softc->disk->d_devstat); 1420 1421 if (softc->flags & CD_FLAG_CHANGER) 1422 cdchangerschedule(softc); 1423 1424 return(error); 1425} 1426 1427static union ccb * 1428cdgetccb(struct cam_periph *periph, u_int32_t priority) 1429{ 1430 struct cd_softc *softc; 1431 1432 softc = (struct cd_softc *)periph->softc; 1433 1434 if (softc->flags & CD_FLAG_CHANGER) { 1435 /* 1436 * This should work the first time this device is woken up, 1437 * but just in case it doesn't, we use a while loop. 1438 */ 1439 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1440 /* 1441 * If this changer isn't already queued, queue it up. 1442 */ 1443 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1444 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1445 softc->pinfo.generation = 1446 ++softc->changer->devq.generation; 1447 camq_insert(&softc->changer->devq, 1448 (cam_pinfo *)softc); 1449 } 1450 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1451 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1452 && ((softc->changer->flags 1453 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1454 softc->changer->flags |= CHANGER_MANUAL_CALL; 1455 cdrunchangerqueue(softc->changer); 1456 } else 1457 cam_periph_sleep(periph, &softc->changer, 1458 PRIBIO, "cgticb", 0); 1459 } 1460 } 1461 return(cam_periph_getccb(periph, priority)); 1462} 1463 1464 1465/* 1466 * Actually translate the requested transfer into one the physical driver 1467 * can understand. The transfer is described by a buf and will include 1468 * only one physical transfer. 1469 */ 1470static void 1471cdstrategy(struct bio *bp) 1472{ 1473 struct cam_periph *periph; 1474 struct cd_softc *softc; 1475 1476 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1477 cam_periph_lock(periph); 1478 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1479 ("cdstrategy(%p)\n", bp)); 1480 1481 softc = (struct cd_softc *)periph->softc; 1482 1483 /* 1484 * If the device has been made invalid, error out 1485 */ 1486 if ((softc->flags & CD_FLAG_INVALID)) { 1487 cam_periph_unlock(periph); 1488 biofinish(bp, NULL, ENXIO); 1489 return; 1490 } 1491 1492 /* 1493 * If we don't have valid media, look for it before trying to 1494 * schedule the I/O. 1495 */ 1496 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1497 int error; 1498 1499 error = cdcheckmedia(periph); 1500 if (error != 0) { 1501 cam_periph_unlock(periph); 1502 biofinish(bp, NULL, error); 1503 return; 1504 } 1505 } 1506 1507 /* 1508 * Place it in the queue of disk activities for this disk 1509 */ 1510 bioq_disksort(&softc->bio_queue, bp); 1511 1512 /* 1513 * Schedule ourselves for performing the work. We do things 1514 * differently for changers. 1515 */ 1516 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1517 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1518 else 1519 cdschedule(periph, CAM_PRIORITY_NORMAL); 1520 1521 cam_periph_unlock(periph); 1522 return; 1523} 1524 1525static void 1526cdstart(struct cam_periph *periph, union ccb *start_ccb) 1527{ 1528 struct cd_softc *softc; 1529 struct bio *bp; 1530 struct ccb_scsiio *csio; 1531 struct scsi_read_capacity_data *rcap; 1532 1533 softc = (struct cd_softc *)periph->softc; 1534 1535 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1536 1537 switch (softc->state) { 1538 case CD_STATE_NORMAL: 1539 { 1540 bp = bioq_first(&softc->bio_queue); 1541 if (periph->immediate_priority <= periph->pinfo.priority) { 1542 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1543 1544 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1545 periph_links.sle); 1546 periph->immediate_priority = CAM_PRIORITY_NONE; 1547 wakeup(&periph->ccb_list); 1548 } else if (bp == NULL) { 1549 if (softc->tur) { 1550 softc->tur = 0; 1551 csio = &start_ccb->csio; 1552 scsi_test_unit_ready(csio, 1553 /*retries*/ cd_retry_count, 1554 cddone, 1555 MSG_SIMPLE_Q_TAG, 1556 SSD_FULL_SIZE, 1557 cd_timeout); 1558 start_ccb->ccb_h.ccb_bp = NULL; 1559 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1560 xpt_action(start_ccb); 1561 } else 1562 xpt_release_ccb(start_ccb); 1563 } else { 1564 if (softc->tur) { 1565 softc->tur = 0; 1566 cam_periph_release_locked(periph); 1567 } 1568 bioq_remove(&softc->bio_queue, bp); 1569 1570 scsi_read_write(&start_ccb->csio, 1571 /*retries*/ cd_retry_count, 1572 /* cbfcnp */ cddone, 1573 MSG_SIMPLE_Q_TAG, 1574 /* read */bp->bio_cmd == BIO_READ ? 1575 SCSI_RW_READ : SCSI_RW_WRITE, 1576 /* byte2 */ 0, 1577 /* minimum_cmd_size */ 10, 1578 /* lba */ bp->bio_offset / 1579 softc->params.blksize, 1580 bp->bio_bcount / softc->params.blksize, 1581 /* data_ptr */ bp->bio_data, 1582 /* dxfer_len */ bp->bio_bcount, 1583 /* sense_len */ cd_retry_count ? 1584 SSD_FULL_SIZE : SF_NO_PRINT, 1585 /* timeout */ cd_timeout); 1586 /* Use READ CD command for audio tracks. */ 1587 if (softc->params.blksize == 2352) { 1588 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1589 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1590 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1591 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1592 start_ccb->csio.cdb_len = 12; 1593 } 1594 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1595 1596 1597 LIST_INSERT_HEAD(&softc->pending_ccbs, 1598 &start_ccb->ccb_h, periph_links.le); 1599 softc->outstanding_cmds++; 1600 1601 /* We expect a unit attention from this device */ 1602 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1603 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1604 softc->flags &= ~CD_FLAG_RETRY_UA; 1605 } 1606 1607 start_ccb->ccb_h.ccb_bp = bp; 1608 bp = bioq_first(&softc->bio_queue); 1609 1610 xpt_action(start_ccb); 1611 } 1612 if (bp != NULL || softc->tur || 1613 periph->immediate_priority != CAM_PRIORITY_NONE) { 1614 /* Have more work to do, so ensure we stay scheduled */ 1615 xpt_schedule(periph, min(CAM_PRIORITY_NORMAL, 1616 periph->immediate_priority)); 1617 } 1618 break; 1619 } 1620 case CD_STATE_PROBE: 1621 { 1622 1623 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1624 M_SCSICD, M_NOWAIT | M_ZERO); 1625 if (rcap == NULL) { 1626 xpt_print(periph->path, 1627 "cdstart: Couldn't malloc read_capacity data\n"); 1628 /* cd_free_periph??? */ 1629 break; 1630 } 1631 csio = &start_ccb->csio; 1632 scsi_read_capacity(csio, 1633 /*retries*/ cd_retry_count, 1634 cddone, 1635 MSG_SIMPLE_Q_TAG, 1636 rcap, 1637 SSD_FULL_SIZE, 1638 /*timeout*/20000); 1639 start_ccb->ccb_h.ccb_bp = NULL; 1640 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1641 xpt_action(start_ccb); 1642 break; 1643 } 1644 } 1645} 1646 1647static void 1648cddone(struct cam_periph *periph, union ccb *done_ccb) 1649{ 1650 struct cd_softc *softc; 1651 struct ccb_scsiio *csio; 1652 1653 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1654 1655 softc = (struct cd_softc *)periph->softc; 1656 csio = &done_ccb->csio; 1657 1658 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1659 case CD_CCB_BUFFER_IO: 1660 { 1661 struct bio *bp; 1662 int error; 1663 1664 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1665 error = 0; 1666 1667 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1668 int sf; 1669 1670 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1671 sf = SF_RETRY_UA; 1672 else 1673 sf = 0; 1674 1675 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1676 if (error == ERESTART) { 1677 /* 1678 * A retry was scheuled, so 1679 * just return. 1680 */ 1681 return; 1682 } 1683 } 1684 1685 if (error != 0) { 1686 xpt_print(periph->path, 1687 "cddone: got error %#x back\n", error); 1688 bioq_flush(&softc->bio_queue, NULL, EIO); 1689 bp->bio_resid = bp->bio_bcount; 1690 bp->bio_error = error; 1691 bp->bio_flags |= BIO_ERROR; 1692 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1693 cam_release_devq(done_ccb->ccb_h.path, 1694 /*relsim_flags*/0, 1695 /*reduction*/0, 1696 /*timeout*/0, 1697 /*getcount_only*/0); 1698 1699 } else { 1700 bp->bio_resid = csio->resid; 1701 bp->bio_error = 0; 1702 if (bp->bio_resid != 0) { 1703 /* 1704 * Short transfer ??? 1705 * XXX: not sure this is correct for partial 1706 * transfers at EOM 1707 */ 1708 bp->bio_flags |= BIO_ERROR; 1709 } 1710 } 1711 1712 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1713 softc->outstanding_cmds--; 1714 1715 if (softc->flags & CD_FLAG_CHANGER) 1716 cdchangerschedule(softc); 1717 1718 biofinish(bp, NULL, 0); 1719 break; 1720 } 1721 case CD_CCB_PROBE: 1722 { 1723 struct scsi_read_capacity_data *rdcap; 1724 char announce_buf[120]; /* 1725 * Currently (9/30/97) the 1726 * longest possible announce 1727 * buffer is 108 bytes, for the 1728 * first error case below. 1729 * That is 39 bytes for the 1730 * basic string, 16 bytes for the 1731 * biggest sense key (hardware 1732 * error), 52 bytes for the 1733 * text of the largest sense 1734 * qualifier valid for a CDROM, 1735 * (0x72, 0x03 or 0x04, 1736 * 0x03), and one byte for the 1737 * null terminating character. 1738 * To allow for longer strings, 1739 * the announce buffer is 120 1740 * bytes. 1741 */ 1742 struct cd_params *cdp; 1743 int error; 1744 1745 cdp = &softc->params; 1746 1747 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1748 1749 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1750 cdp->blksize = scsi_4btoul (rdcap->length); 1751 1752 /* 1753 * Retry any UNIT ATTENTION type errors. They 1754 * are expected at boot. 1755 */ 1756 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1757 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1758 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1759 1760 snprintf(announce_buf, sizeof(announce_buf), 1761 "cd present [%lu x %lu byte records]", 1762 cdp->disksize, (u_long)cdp->blksize); 1763 1764 } else { 1765 if (error == ERESTART) { 1766 /* 1767 * A retry was scheuled, so 1768 * just return. 1769 */ 1770 return; 1771 } else { 1772 int asc, ascq; 1773 int sense_key, error_code; 1774 int have_sense; 1775 cam_status status; 1776 struct ccb_getdev cgd; 1777 1778 /* Don't wedge this device's queue */ 1779 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1780 cam_release_devq(done_ccb->ccb_h.path, 1781 /*relsim_flags*/0, 1782 /*reduction*/0, 1783 /*timeout*/0, 1784 /*getcount_only*/0); 1785 1786 status = done_ccb->ccb_h.status; 1787 1788 xpt_setup_ccb(&cgd.ccb_h, 1789 done_ccb->ccb_h.path, 1790 CAM_PRIORITY_NORMAL); 1791 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1792 xpt_action((union ccb *)&cgd); 1793 1794 if (scsi_extract_sense_ccb(done_ccb, 1795 &error_code, &sense_key, &asc, &ascq)) 1796 have_sense = TRUE; 1797 else 1798 have_sense = FALSE; 1799 1800 /* 1801 * Attach to anything that claims to be a 1802 * CDROM or WORM device, as long as it 1803 * doesn't return a "Logical unit not 1804 * supported" (0x25) error. 1805 */ 1806 if ((have_sense) && (asc != 0x25) 1807 && (error_code == SSD_CURRENT_ERROR)) { 1808 const char *sense_key_desc; 1809 const char *asc_desc; 1810 1811 scsi_sense_desc(sense_key, asc, ascq, 1812 &cgd.inq_data, 1813 &sense_key_desc, 1814 &asc_desc); 1815 snprintf(announce_buf, 1816 sizeof(announce_buf), 1817 "Attempt to query device " 1818 "size failed: %s, %s", 1819 sense_key_desc, 1820 asc_desc); 1821 } else if ((have_sense == 0) 1822 && ((status & CAM_STATUS_MASK) == 1823 CAM_SCSI_STATUS_ERROR) 1824 && (csio->scsi_status == 1825 SCSI_STATUS_BUSY)) { 1826 snprintf(announce_buf, 1827 sizeof(announce_buf), 1828 "Attempt to query device " 1829 "size failed: SCSI Status: %s", 1830 scsi_status_string(csio)); 1831 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1832 /* 1833 * We only print out an error for 1834 * CDROM type devices. For WORM 1835 * devices, we don't print out an 1836 * error since a few WORM devices 1837 * don't support CDROM commands. 1838 * If we have sense information, go 1839 * ahead and print it out. 1840 * Otherwise, just say that we 1841 * couldn't attach. 1842 */ 1843 1844 /* 1845 * Just print out the error, not 1846 * the full probe message, when we 1847 * don't attach. 1848 */ 1849 if (have_sense) 1850 scsi_sense_print( 1851 &done_ccb->csio); 1852 else { 1853 xpt_print(periph->path, 1854 "got CAM status %#x\n", 1855 done_ccb->ccb_h.status); 1856 } 1857 xpt_print(periph->path, "fatal error, " 1858 "failed to attach to device\n"); 1859 /* 1860 * Invalidate this peripheral. 1861 */ 1862 cam_periph_invalidate(periph); 1863 1864 announce_buf[0] = '\0'; 1865 } else { 1866 1867 /* 1868 * Invalidate this peripheral. 1869 */ 1870 cam_periph_invalidate(periph); 1871 announce_buf[0] = '\0'; 1872 } 1873 } 1874 } 1875 free(rdcap, M_SCSICD); 1876 if (announce_buf[0] != '\0') { 1877 xpt_announce_periph(periph, announce_buf); 1878 xpt_announce_quirks(periph, softc->quirks, 1879 CD_Q_BIT_STRING); 1880 if (softc->flags & CD_FLAG_CHANGER) 1881 cdchangerschedule(softc); 1882 /* 1883 * Create our sysctl variables, now that we know 1884 * we have successfully attached. 1885 */ 1886 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1887 } 1888 softc->state = CD_STATE_NORMAL; 1889 /* 1890 * Since our peripheral may be invalidated by an error 1891 * above or an external event, we must release our CCB 1892 * before releasing the probe lock on the peripheral. 1893 * The peripheral will only go away once the last lock 1894 * is removed, and we need it around for the CCB release 1895 * operation. 1896 */ 1897 xpt_release_ccb(done_ccb); 1898 cam_periph_unhold(periph); 1899 return; 1900 } 1901 case CD_CCB_WAITING: 1902 { 1903 /* Caller will release the CCB */ 1904 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1905 ("trying to wakeup ccbwait\n")); 1906 1907 wakeup(&done_ccb->ccb_h.cbfcnp); 1908 return; 1909 } 1910 case CD_CCB_TUR: 1911 { 1912 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1913 1914 if (cderror(done_ccb, CAM_RETRY_SELTO, 1915 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1916 ERESTART) 1917 return; 1918 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1919 cam_release_devq(done_ccb->ccb_h.path, 1920 /*relsim_flags*/0, 1921 /*reduction*/0, 1922 /*timeout*/0, 1923 /*getcount_only*/0); 1924 } 1925 xpt_release_ccb(done_ccb); 1926 cam_periph_release_locked(periph); 1927 return; 1928 } 1929 default: 1930 break; 1931 } 1932 xpt_release_ccb(done_ccb); 1933} 1934 1935static union cd_pages * 1936cdgetpage(struct cd_mode_params *mode_params) 1937{ 1938 union cd_pages *page; 1939 1940 if (mode_params->cdb_size == 10) 1941 page = (union cd_pages *)find_mode_page_10( 1942 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1943 else 1944 page = (union cd_pages *)find_mode_page_6( 1945 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1946 1947 return (page); 1948} 1949 1950static int 1951cdgetpagesize(int page_num) 1952{ 1953 int i; 1954 1955 for (i = 0; i < (sizeof(cd_page_size_table)/ 1956 sizeof(cd_page_size_table[0])); i++) { 1957 if (cd_page_size_table[i].page == page_num) 1958 return (cd_page_size_table[i].page_size); 1959 } 1960 1961 return (-1); 1962} 1963 1964static int 1965cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1966{ 1967 1968 struct cam_periph *periph; 1969 struct cd_softc *softc; 1970 int nocopyout, error = 0; 1971 1972 periph = (struct cam_periph *)dp->d_drv1; 1973 cam_periph_lock(periph); 1974 1975 softc = (struct cd_softc *)periph->softc; 1976 1977 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1978 ("cdioctl(%#lx)\n", cmd)); 1979 1980 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1981 cam_periph_unlock(periph); 1982 cam_periph_release(periph); 1983 return (error); 1984 } 1985 1986 /* 1987 * If we don't have media loaded, check for it. If still don't 1988 * have media loaded, we can only do a load or eject. 1989 * 1990 * We only care whether media is loaded if this is a cd-specific ioctl 1991 * (thus the IOCGROUP check below). Note that this will break if 1992 * anyone adds any ioctls into the switch statement below that don't 1993 * have their ioctl group set to 'c'. 1994 */ 1995 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1996 && ((cmd != CDIOCCLOSE) 1997 && (cmd != CDIOCEJECT)) 1998 && (IOCGROUP(cmd) == 'c')) { 1999 error = cdcheckmedia(periph); 2000 if (error != 0) { 2001 cam_periph_unhold(periph); 2002 cam_periph_unlock(periph); 2003 return (error); 2004 } 2005 } 2006 /* 2007 * Drop the lock here so later mallocs can use WAITOK. The periph 2008 * is essentially locked still with the cam_periph_hold call above. 2009 */ 2010 cam_periph_unlock(periph); 2011 2012 nocopyout = 0; 2013 switch (cmd) { 2014 2015 case CDIOCPLAYTRACKS: 2016 { 2017 struct ioc_play_track *args 2018 = (struct ioc_play_track *) addr; 2019 struct cd_mode_params params; 2020 union cd_pages *page; 2021 2022 params.alloc_len = sizeof(union cd_mode_data_6_10); 2023 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2024 M_WAITOK | M_ZERO); 2025 2026 cam_periph_lock(periph); 2027 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2028 ("trying to do CDIOCPLAYTRACKS\n")); 2029 2030 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2031 if (error) { 2032 free(params.mode_buf, M_SCSICD); 2033 cam_periph_unlock(periph); 2034 break; 2035 } 2036 page = cdgetpage(¶ms); 2037 2038 page->audio.flags &= ~CD_PA_SOTC; 2039 page->audio.flags |= CD_PA_IMMED; 2040 error = cdsetmode(periph, ¶ms); 2041 free(params.mode_buf, M_SCSICD); 2042 if (error) { 2043 cam_periph_unlock(periph); 2044 break; 2045 } 2046 2047 /* 2048 * This was originally implemented with the PLAY 2049 * AUDIO TRACK INDEX command, but that command was 2050 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2051 * drives support it but ATAPI and ATAPI-derivative 2052 * drives don't seem to support it. So we keep a 2053 * cache of the table of contents and translate 2054 * track numbers to MSF format. 2055 */ 2056 if (softc->flags & CD_FLAG_VALID_TOC) { 2057 union msf_lba *sentry, *eentry; 2058 int st, et; 2059 2060 if (args->end_track < 2061 softc->toc.header.ending_track + 1) 2062 args->end_track++; 2063 if (args->end_track > 2064 softc->toc.header.ending_track + 1) 2065 args->end_track = 2066 softc->toc.header.ending_track + 1; 2067 st = args->start_track - 2068 softc->toc.header.starting_track; 2069 et = args->end_track - 2070 softc->toc.header.starting_track; 2071 if ((st < 0) 2072 || (et < 0) 2073 || (st > (softc->toc.header.ending_track - 2074 softc->toc.header.starting_track))) { 2075 error = EINVAL; 2076 cam_periph_unlock(periph); 2077 break; 2078 } 2079 sentry = &softc->toc.entries[st].addr; 2080 eentry = &softc->toc.entries[et].addr; 2081 error = cdplaymsf(periph, 2082 sentry->msf.minute, 2083 sentry->msf.second, 2084 sentry->msf.frame, 2085 eentry->msf.minute, 2086 eentry->msf.second, 2087 eentry->msf.frame); 2088 } else { 2089 /* 2090 * If we don't have a valid TOC, try the 2091 * play track index command. It is part of 2092 * the SCSI-2 spec, but was removed in the 2093 * MMC specs. ATAPI and ATAPI-derived 2094 * drives don't support it. 2095 */ 2096 if (softc->quirks & CD_Q_BCD_TRACKS) { 2097 args->start_track = 2098 bin2bcd(args->start_track); 2099 args->end_track = 2100 bin2bcd(args->end_track); 2101 } 2102 error = cdplaytracks(periph, 2103 args->start_track, 2104 args->start_index, 2105 args->end_track, 2106 args->end_index); 2107 } 2108 cam_periph_unlock(periph); 2109 } 2110 break; 2111 case CDIOCPLAYMSF: 2112 { 2113 struct ioc_play_msf *args 2114 = (struct ioc_play_msf *) addr; 2115 struct cd_mode_params params; 2116 union cd_pages *page; 2117 2118 params.alloc_len = sizeof(union cd_mode_data_6_10); 2119 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2120 M_WAITOK | M_ZERO); 2121 2122 cam_periph_lock(periph); 2123 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2124 ("trying to do CDIOCPLAYMSF\n")); 2125 2126 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2127 if (error) { 2128 free(params.mode_buf, M_SCSICD); 2129 cam_periph_unlock(periph); 2130 break; 2131 } 2132 page = cdgetpage(¶ms); 2133 2134 page->audio.flags &= ~CD_PA_SOTC; 2135 page->audio.flags |= CD_PA_IMMED; 2136 error = cdsetmode(periph, ¶ms); 2137 free(params.mode_buf, M_SCSICD); 2138 if (error) { 2139 cam_periph_unlock(periph); 2140 break; 2141 } 2142 error = cdplaymsf(periph, 2143 args->start_m, 2144 args->start_s, 2145 args->start_f, 2146 args->end_m, 2147 args->end_s, 2148 args->end_f); 2149 cam_periph_unlock(periph); 2150 } 2151 break; 2152 case CDIOCPLAYBLOCKS: 2153 { 2154 struct ioc_play_blocks *args 2155 = (struct ioc_play_blocks *) addr; 2156 struct cd_mode_params params; 2157 union cd_pages *page; 2158 2159 params.alloc_len = sizeof(union cd_mode_data_6_10); 2160 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2161 M_WAITOK | M_ZERO); 2162 2163 cam_periph_lock(periph); 2164 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2165 ("trying to do CDIOCPLAYBLOCKS\n")); 2166 2167 2168 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2169 if (error) { 2170 free(params.mode_buf, M_SCSICD); 2171 cam_periph_unlock(periph); 2172 break; 2173 } 2174 page = cdgetpage(¶ms); 2175 2176 page->audio.flags &= ~CD_PA_SOTC; 2177 page->audio.flags |= CD_PA_IMMED; 2178 error = cdsetmode(periph, ¶ms); 2179 free(params.mode_buf, M_SCSICD); 2180 if (error) { 2181 cam_periph_unlock(periph); 2182 break; 2183 } 2184 error = cdplay(periph, args->blk, args->len); 2185 cam_periph_unlock(periph); 2186 } 2187 break; 2188 case CDIOCREADSUBCHANNEL_SYSSPACE: 2189 nocopyout = 1; 2190 /* Fallthrough */ 2191 case CDIOCREADSUBCHANNEL: 2192 { 2193 struct ioc_read_subchannel *args 2194 = (struct ioc_read_subchannel *) addr; 2195 struct cd_sub_channel_info *data; 2196 u_int32_t len = args->data_len; 2197 2198 data = malloc(sizeof(struct cd_sub_channel_info), 2199 M_SCSICD, M_WAITOK | M_ZERO); 2200 2201 cam_periph_lock(periph); 2202 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2203 ("trying to do CDIOCREADSUBCHANNEL\n")); 2204 2205 if ((len > sizeof(struct cd_sub_channel_info)) || 2206 (len < sizeof(struct cd_sub_channel_header))) { 2207 printf( 2208 "scsi_cd: cdioctl: " 2209 "cdioreadsubchannel: error, len=%d\n", 2210 len); 2211 error = EINVAL; 2212 free(data, M_SCSICD); 2213 cam_periph_unlock(periph); 2214 break; 2215 } 2216 2217 if (softc->quirks & CD_Q_BCD_TRACKS) 2218 args->track = bin2bcd(args->track); 2219 2220 error = cdreadsubchannel(periph, args->address_format, 2221 args->data_format, args->track, data, len); 2222 2223 if (error) { 2224 free(data, M_SCSICD); 2225 cam_periph_unlock(periph); 2226 break; 2227 } 2228 if (softc->quirks & CD_Q_BCD_TRACKS) 2229 data->what.track_info.track_number = 2230 bcd2bin(data->what.track_info.track_number); 2231 len = min(len, ((data->header.data_len[0] << 8) + 2232 data->header.data_len[1] + 2233 sizeof(struct cd_sub_channel_header))); 2234 cam_periph_unlock(periph); 2235 if (nocopyout == 0) { 2236 if (copyout(data, args->data, len) != 0) { 2237 error = EFAULT; 2238 } 2239 } else { 2240 bcopy(data, args->data, len); 2241 } 2242 free(data, M_SCSICD); 2243 } 2244 break; 2245 2246 case CDIOREADTOCHEADER: 2247 { 2248 struct ioc_toc_header *th; 2249 2250 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2251 M_WAITOK | M_ZERO); 2252 2253 cam_periph_lock(periph); 2254 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2255 ("trying to do CDIOREADTOCHEADER\n")); 2256 2257 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2258 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2259 if (error) { 2260 free(th, M_SCSICD); 2261 cam_periph_unlock(periph); 2262 break; 2263 } 2264 if (softc->quirks & CD_Q_BCD_TRACKS) { 2265 /* we are going to have to convert the BCD 2266 * encoding on the cd to what is expected 2267 */ 2268 th->starting_track = 2269 bcd2bin(th->starting_track); 2270 th->ending_track = bcd2bin(th->ending_track); 2271 } 2272 th->len = ntohs(th->len); 2273 bcopy(th, addr, sizeof(*th)); 2274 free(th, M_SCSICD); 2275 cam_periph_unlock(periph); 2276 } 2277 break; 2278 case CDIOREADTOCENTRYS: 2279 { 2280 struct cd_tocdata *data; 2281 struct cd_toc_single *lead; 2282 struct ioc_read_toc_entry *te = 2283 (struct ioc_read_toc_entry *) addr; 2284 struct ioc_toc_header *th; 2285 u_int32_t len, readlen, idx, num; 2286 u_int32_t starting_track = te->starting_track; 2287 2288 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2289 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2290 2291 cam_periph_lock(periph); 2292 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2293 ("trying to do CDIOREADTOCENTRYS\n")); 2294 2295 if (te->data_len < sizeof(struct cd_toc_entry) 2296 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2297 || (te->address_format != CD_MSF_FORMAT 2298 && te->address_format != CD_LBA_FORMAT)) { 2299 error = EINVAL; 2300 printf("scsi_cd: error in readtocentries, " 2301 "returning EINVAL\n"); 2302 free(data, M_SCSICD); 2303 free(lead, M_SCSICD); 2304 cam_periph_unlock(periph); 2305 break; 2306 } 2307 2308 th = &data->header; 2309 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2310 sizeof (*th), /*sense_flags*/0); 2311 if (error) { 2312 free(data, M_SCSICD); 2313 free(lead, M_SCSICD); 2314 cam_periph_unlock(periph); 2315 break; 2316 } 2317 2318 if (softc->quirks & CD_Q_BCD_TRACKS) { 2319 /* we are going to have to convert the BCD 2320 * encoding on the cd to what is expected 2321 */ 2322 th->starting_track = 2323 bcd2bin(th->starting_track); 2324 th->ending_track = bcd2bin(th->ending_track); 2325 } 2326 2327 if (starting_track == 0) 2328 starting_track = th->starting_track; 2329 else if (starting_track == LEADOUT) 2330 starting_track = th->ending_track + 1; 2331 else if (starting_track < th->starting_track || 2332 starting_track > th->ending_track + 1) { 2333 printf("scsi_cd: error in readtocentries, " 2334 "returning EINVAL\n"); 2335 free(data, M_SCSICD); 2336 free(lead, M_SCSICD); 2337 cam_periph_unlock(periph); 2338 error = EINVAL; 2339 break; 2340 } 2341 2342 /* calculate reading length without leadout entry */ 2343 readlen = (th->ending_track - starting_track + 1) * 2344 sizeof(struct cd_toc_entry); 2345 2346 /* and with leadout entry */ 2347 len = readlen + sizeof(struct cd_toc_entry); 2348 if (te->data_len < len) { 2349 len = te->data_len; 2350 if (readlen > len) 2351 readlen = len; 2352 } 2353 if (len > sizeof(data->entries)) { 2354 printf("scsi_cd: error in readtocentries, " 2355 "returning EINVAL\n"); 2356 error = EINVAL; 2357 free(data, M_SCSICD); 2358 free(lead, M_SCSICD); 2359 cam_periph_unlock(periph); 2360 break; 2361 } 2362 num = len / sizeof(struct cd_toc_entry); 2363 2364 if (readlen > 0) { 2365 error = cdreadtoc(periph, te->address_format, 2366 starting_track, 2367 (u_int8_t *)data, 2368 readlen + sizeof (*th), 2369 /*sense_flags*/0); 2370 if (error) { 2371 free(data, M_SCSICD); 2372 free(lead, M_SCSICD); 2373 cam_periph_unlock(periph); 2374 break; 2375 } 2376 } 2377 2378 /* make leadout entry if needed */ 2379 idx = starting_track + num - 1; 2380 if (softc->quirks & CD_Q_BCD_TRACKS) 2381 th->ending_track = bcd2bin(th->ending_track); 2382 if (idx == th->ending_track + 1) { 2383 error = cdreadtoc(periph, te->address_format, 2384 LEADOUT, (u_int8_t *)lead, 2385 sizeof(*lead), 2386 /*sense_flags*/0); 2387 if (error) { 2388 free(data, M_SCSICD); 2389 free(lead, M_SCSICD); 2390 cam_periph_unlock(periph); 2391 break; 2392 } 2393 data->entries[idx - starting_track] = 2394 lead->entry; 2395 } 2396 if (softc->quirks & CD_Q_BCD_TRACKS) { 2397 for (idx = 0; idx < num - 1; idx++) { 2398 data->entries[idx].track = 2399 bcd2bin(data->entries[idx].track); 2400 } 2401 } 2402 2403 cam_periph_unlock(periph); 2404 error = copyout(data->entries, te->data, len); 2405 free(data, M_SCSICD); 2406 free(lead, M_SCSICD); 2407 } 2408 break; 2409 case CDIOREADTOCENTRY: 2410 { 2411 struct cd_toc_single *data; 2412 struct ioc_read_toc_single_entry *te = 2413 (struct ioc_read_toc_single_entry *) addr; 2414 struct ioc_toc_header *th; 2415 u_int32_t track; 2416 2417 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2418 2419 cam_periph_lock(periph); 2420 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2421 ("trying to do CDIOREADTOCENTRY\n")); 2422 2423 if (te->address_format != CD_MSF_FORMAT 2424 && te->address_format != CD_LBA_FORMAT) { 2425 printf("error in readtocentry, " 2426 " returning EINVAL\n"); 2427 free(data, M_SCSICD); 2428 error = EINVAL; 2429 cam_periph_unlock(periph); 2430 break; 2431 } 2432 2433 th = &data->header; 2434 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2435 sizeof (*th), /*sense_flags*/0); 2436 if (error) { 2437 free(data, M_SCSICD); 2438 cam_periph_unlock(periph); 2439 break; 2440 } 2441 2442 if (softc->quirks & CD_Q_BCD_TRACKS) { 2443 /* we are going to have to convert the BCD 2444 * encoding on the cd to what is expected 2445 */ 2446 th->starting_track = 2447 bcd2bin(th->starting_track); 2448 th->ending_track = bcd2bin(th->ending_track); 2449 } 2450 track = te->track; 2451 if (track == 0) 2452 track = th->starting_track; 2453 else if (track == LEADOUT) 2454 /* OK */; 2455 else if (track < th->starting_track || 2456 track > th->ending_track + 1) { 2457 printf("error in readtocentry, " 2458 " returning EINVAL\n"); 2459 free(data, M_SCSICD); 2460 error = EINVAL; 2461 cam_periph_unlock(periph); 2462 break; 2463 } 2464 2465 error = cdreadtoc(periph, te->address_format, track, 2466 (u_int8_t *)data, sizeof(*data), 2467 /*sense_flags*/0); 2468 if (error) { 2469 free(data, M_SCSICD); 2470 cam_periph_unlock(periph); 2471 break; 2472 } 2473 2474 if (softc->quirks & CD_Q_BCD_TRACKS) 2475 data->entry.track = bcd2bin(data->entry.track); 2476 bcopy(&data->entry, &te->entry, 2477 sizeof(struct cd_toc_entry)); 2478 free(data, M_SCSICD); 2479 cam_periph_unlock(periph); 2480 } 2481 break; 2482 case CDIOCSETPATCH: 2483 { 2484 struct ioc_patch *arg = (struct ioc_patch *)addr; 2485 struct cd_mode_params params; 2486 union cd_pages *page; 2487 2488 params.alloc_len = sizeof(union cd_mode_data_6_10); 2489 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2490 M_WAITOK | M_ZERO); 2491 2492 cam_periph_lock(periph); 2493 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2494 ("trying to do CDIOCSETPATCH\n")); 2495 2496 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2497 if (error) { 2498 free(params.mode_buf, M_SCSICD); 2499 cam_periph_unlock(periph); 2500 break; 2501 } 2502 page = cdgetpage(¶ms); 2503 2504 page->audio.port[LEFT_PORT].channels = 2505 arg->patch[0]; 2506 page->audio.port[RIGHT_PORT].channels = 2507 arg->patch[1]; 2508 page->audio.port[2].channels = arg->patch[2]; 2509 page->audio.port[3].channels = arg->patch[3]; 2510 error = cdsetmode(periph, ¶ms); 2511 free(params.mode_buf, M_SCSICD); 2512 cam_periph_unlock(periph); 2513 } 2514 break; 2515 case CDIOCGETVOL: 2516 { 2517 struct ioc_vol *arg = (struct ioc_vol *) addr; 2518 struct cd_mode_params params; 2519 union cd_pages *page; 2520 2521 params.alloc_len = sizeof(union cd_mode_data_6_10); 2522 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2523 M_WAITOK | M_ZERO); 2524 2525 cam_periph_lock(periph); 2526 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2527 ("trying to do CDIOCGETVOL\n")); 2528 2529 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2530 if (error) { 2531 free(params.mode_buf, M_SCSICD); 2532 cam_periph_unlock(periph); 2533 break; 2534 } 2535 page = cdgetpage(¶ms); 2536 2537 arg->vol[LEFT_PORT] = 2538 page->audio.port[LEFT_PORT].volume; 2539 arg->vol[RIGHT_PORT] = 2540 page->audio.port[RIGHT_PORT].volume; 2541 arg->vol[2] = page->audio.port[2].volume; 2542 arg->vol[3] = page->audio.port[3].volume; 2543 free(params.mode_buf, M_SCSICD); 2544 cam_periph_unlock(periph); 2545 } 2546 break; 2547 case CDIOCSETVOL: 2548 { 2549 struct ioc_vol *arg = (struct ioc_vol *) addr; 2550 struct cd_mode_params params; 2551 union cd_pages *page; 2552 2553 params.alloc_len = sizeof(union cd_mode_data_6_10); 2554 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2555 M_WAITOK | M_ZERO); 2556 2557 cam_periph_lock(periph); 2558 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2559 ("trying to do CDIOCSETVOL\n")); 2560 2561 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2562 if (error) { 2563 free(params.mode_buf, M_SCSICD); 2564 cam_periph_unlock(periph); 2565 break; 2566 } 2567 page = cdgetpage(¶ms); 2568 2569 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2570 page->audio.port[LEFT_PORT].volume = 2571 arg->vol[LEFT_PORT]; 2572 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2573 page->audio.port[RIGHT_PORT].volume = 2574 arg->vol[RIGHT_PORT]; 2575 page->audio.port[2].volume = arg->vol[2]; 2576 page->audio.port[3].volume = arg->vol[3]; 2577 error = cdsetmode(periph, ¶ms); 2578 cam_periph_unlock(periph); 2579 free(params.mode_buf, M_SCSICD); 2580 } 2581 break; 2582 case CDIOCSETMONO: 2583 { 2584 struct cd_mode_params params; 2585 union cd_pages *page; 2586 2587 params.alloc_len = sizeof(union cd_mode_data_6_10); 2588 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2589 M_WAITOK | M_ZERO); 2590 2591 cam_periph_lock(periph); 2592 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2593 ("trying to do CDIOCSETMONO\n")); 2594 2595 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2596 if (error) { 2597 free(params.mode_buf, M_SCSICD); 2598 cam_periph_unlock(periph); 2599 break; 2600 } 2601 page = cdgetpage(¶ms); 2602 2603 page->audio.port[LEFT_PORT].channels = 2604 LEFT_CHANNEL | RIGHT_CHANNEL; 2605 page->audio.port[RIGHT_PORT].channels = 2606 LEFT_CHANNEL | RIGHT_CHANNEL; 2607 page->audio.port[2].channels = 0; 2608 page->audio.port[3].channels = 0; 2609 error = cdsetmode(periph, ¶ms); 2610 cam_periph_unlock(periph); 2611 free(params.mode_buf, M_SCSICD); 2612 } 2613 break; 2614 case CDIOCSETSTEREO: 2615 { 2616 struct cd_mode_params params; 2617 union cd_pages *page; 2618 2619 params.alloc_len = sizeof(union cd_mode_data_6_10); 2620 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2621 M_WAITOK | M_ZERO); 2622 2623 cam_periph_lock(periph); 2624 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2625 ("trying to do CDIOCSETSTEREO\n")); 2626 2627 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2628 if (error) { 2629 free(params.mode_buf, M_SCSICD); 2630 cam_periph_unlock(periph); 2631 break; 2632 } 2633 page = cdgetpage(¶ms); 2634 2635 page->audio.port[LEFT_PORT].channels = 2636 LEFT_CHANNEL; 2637 page->audio.port[RIGHT_PORT].channels = 2638 RIGHT_CHANNEL; 2639 page->audio.port[2].channels = 0; 2640 page->audio.port[3].channels = 0; 2641 error = cdsetmode(periph, ¶ms); 2642 free(params.mode_buf, M_SCSICD); 2643 cam_periph_unlock(periph); 2644 } 2645 break; 2646 case CDIOCSETMUTE: 2647 { 2648 struct cd_mode_params params; 2649 union cd_pages *page; 2650 2651 params.alloc_len = sizeof(union cd_mode_data_6_10); 2652 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2653 M_WAITOK | M_ZERO); 2654 2655 cam_periph_lock(periph); 2656 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2657 ("trying to do CDIOCSETMUTE\n")); 2658 2659 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2660 if (error) { 2661 free(params.mode_buf, M_SCSICD); 2662 cam_periph_unlock(periph); 2663 break; 2664 } 2665 page = cdgetpage(¶ms); 2666 2667 page->audio.port[LEFT_PORT].channels = 0; 2668 page->audio.port[RIGHT_PORT].channels = 0; 2669 page->audio.port[2].channels = 0; 2670 page->audio.port[3].channels = 0; 2671 error = cdsetmode(periph, ¶ms); 2672 free(params.mode_buf, M_SCSICD); 2673 cam_periph_unlock(periph); 2674 } 2675 break; 2676 case CDIOCSETLEFT: 2677 { 2678 struct cd_mode_params params; 2679 union cd_pages *page; 2680 2681 params.alloc_len = sizeof(union cd_mode_data_6_10); 2682 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2683 M_WAITOK | M_ZERO); 2684 2685 cam_periph_lock(periph); 2686 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2687 ("trying to do CDIOCSETLEFT\n")); 2688 2689 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2690 if (error) { 2691 free(params.mode_buf, M_SCSICD); 2692 cam_periph_unlock(periph); 2693 break; 2694 } 2695 page = cdgetpage(¶ms); 2696 2697 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2698 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2699 page->audio.port[2].channels = 0; 2700 page->audio.port[3].channels = 0; 2701 error = cdsetmode(periph, ¶ms); 2702 free(params.mode_buf, M_SCSICD); 2703 cam_periph_unlock(periph); 2704 } 2705 break; 2706 case CDIOCSETRIGHT: 2707 { 2708 struct cd_mode_params params; 2709 union cd_pages *page; 2710 2711 params.alloc_len = sizeof(union cd_mode_data_6_10); 2712 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2713 M_WAITOK | M_ZERO); 2714 2715 cam_periph_lock(periph); 2716 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2717 ("trying to do CDIOCSETRIGHT\n")); 2718 2719 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2720 if (error) { 2721 free(params.mode_buf, M_SCSICD); 2722 cam_periph_unlock(periph); 2723 break; 2724 } 2725 page = cdgetpage(¶ms); 2726 2727 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2728 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2729 page->audio.port[2].channels = 0; 2730 page->audio.port[3].channels = 0; 2731 error = cdsetmode(periph, ¶ms); 2732 free(params.mode_buf, M_SCSICD); 2733 cam_periph_unlock(periph); 2734 } 2735 break; 2736 case CDIOCRESUME: 2737 cam_periph_lock(periph); 2738 error = cdpause(periph, 1); 2739 cam_periph_unlock(periph); 2740 break; 2741 case CDIOCPAUSE: 2742 cam_periph_lock(periph); 2743 error = cdpause(periph, 0); 2744 cam_periph_unlock(periph); 2745 break; 2746 case CDIOCSTART: 2747 cam_periph_lock(periph); 2748 error = cdstartunit(periph, 0); 2749 cam_periph_unlock(periph); 2750 break; 2751 case CDIOCCLOSE: 2752 cam_periph_lock(periph); 2753 error = cdstartunit(periph, 1); 2754 cam_periph_unlock(periph); 2755 break; 2756 case CDIOCSTOP: 2757 cam_periph_lock(periph); 2758 error = cdstopunit(periph, 0); 2759 cam_periph_unlock(periph); 2760 break; 2761 case CDIOCEJECT: 2762 cam_periph_lock(periph); 2763 error = cdstopunit(periph, 1); 2764 cam_periph_unlock(periph); 2765 break; 2766 case CDIOCALLOW: 2767 cam_periph_lock(periph); 2768 cdprevent(periph, PR_ALLOW); 2769 cam_periph_unlock(periph); 2770 break; 2771 case CDIOCPREVENT: 2772 cam_periph_lock(periph); 2773 cdprevent(periph, PR_PREVENT); 2774 cam_periph_unlock(periph); 2775 break; 2776 case CDIOCSETDEBUG: 2777 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2778 error = ENOTTY; 2779 break; 2780 case CDIOCCLRDEBUG: 2781 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2782 error = ENOTTY; 2783 break; 2784 case CDIOCRESET: 2785 /* return (cd_reset(periph)); */ 2786 error = ENOTTY; 2787 break; 2788 case CDRIOCREADSPEED: 2789 cam_periph_lock(periph); 2790 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2791 cam_periph_unlock(periph); 2792 break; 2793 case CDRIOCWRITESPEED: 2794 cam_periph_lock(periph); 2795 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2796 cam_periph_unlock(periph); 2797 break; 2798 case CDRIOCGETBLOCKSIZE: 2799 *(int *)addr = softc->params.blksize; 2800 break; 2801 case CDRIOCSETBLOCKSIZE: 2802 if (*(int *)addr <= 0) { 2803 error = EINVAL; 2804 break; 2805 } 2806 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2807 break; 2808 case DVDIOCSENDKEY: 2809 case DVDIOCREPORTKEY: { 2810 struct dvd_authinfo *authinfo; 2811 2812 authinfo = (struct dvd_authinfo *)addr; 2813 2814 if (cmd == DVDIOCREPORTKEY) 2815 error = cdreportkey(periph, authinfo); 2816 else 2817 error = cdsendkey(periph, authinfo); 2818 break; 2819 } 2820 case DVDIOCREADSTRUCTURE: { 2821 struct dvd_struct *dvdstruct; 2822 2823 dvdstruct = (struct dvd_struct *)addr; 2824 2825 error = cdreaddvdstructure(periph, dvdstruct); 2826 2827 break; 2828 } 2829 default: 2830 cam_periph_lock(periph); 2831 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2832 cam_periph_unlock(periph); 2833 break; 2834 } 2835 2836 cam_periph_lock(periph); 2837 cam_periph_unhold(periph); 2838 2839 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2840 if (error && bootverbose) { 2841 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2842 } 2843 cam_periph_unlock(periph); 2844 2845 return (error); 2846} 2847 2848static void 2849cdprevent(struct cam_periph *periph, int action) 2850{ 2851 union ccb *ccb; 2852 struct cd_softc *softc; 2853 int error; 2854 2855 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2856 2857 softc = (struct cd_softc *)periph->softc; 2858 2859 if (((action == PR_ALLOW) 2860 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2861 || ((action == PR_PREVENT) 2862 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2863 return; 2864 } 2865 2866 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2867 2868 scsi_prevent(&ccb->csio, 2869 /*retries*/ cd_retry_count, 2870 cddone, 2871 MSG_SIMPLE_Q_TAG, 2872 action, 2873 SSD_FULL_SIZE, 2874 /* timeout */60000); 2875 2876 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2877 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2878 2879 xpt_release_ccb(ccb); 2880 2881 if (error == 0) { 2882 if (action == PR_ALLOW) 2883 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2884 else 2885 softc->flags |= CD_FLAG_DISC_LOCKED; 2886 } 2887} 2888 2889/* 2890 * XXX: the disk media and sector size is only really able to change 2891 * XXX: while the device is closed. 2892 */ 2893static int 2894cdcheckmedia(struct cam_periph *periph) 2895{ 2896 struct cd_softc *softc; 2897 struct ioc_toc_header *toch; 2898 struct cd_toc_single leadout; 2899 u_int32_t size, toclen; 2900 int error, num_entries, cdindex; 2901 2902 softc = (struct cd_softc *)periph->softc; 2903 2904 cdprevent(periph, PR_PREVENT); 2905 softc->disk->d_sectorsize = 2048; 2906 softc->disk->d_mediasize = 0; 2907 2908 /* 2909 * Get the disc size and block size. If we can't get it, we don't 2910 * have media, most likely. 2911 */ 2912 if ((error = cdsize(periph, &size)) != 0) { 2913 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2914 cdprevent(periph, PR_ALLOW); 2915 return (error); 2916 } else { 2917 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2918 softc->disk->d_sectorsize = softc->params.blksize; 2919 softc->disk->d_mediasize = 2920 (off_t)softc->params.blksize * softc->params.disksize; 2921 } 2922 2923 /* 2924 * Now we check the table of contents. This (currently) is only 2925 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2926 * things like present a separate entry in /dev for each track, 2927 * like that acd(4) driver does. 2928 */ 2929 bzero(&softc->toc, sizeof(softc->toc)); 2930 toch = &softc->toc.header; 2931 /* 2932 * We will get errors here for media that doesn't have a table of 2933 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2934 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2935 * has not been recorded (no complete session) and the Format codes 2936 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2937 * with an INVALID FIELD IN CDB. Devices that are not capable of 2938 * reading an incomplete session on DDC/CD-R/RW media shall report 2939 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2940 * 2941 * So this isn't fatal if we can't read the table of contents, it 2942 * just means that the user won't be able to issue the play tracks 2943 * ioctl, and likely lots of other stuff won't work either. They 2944 * need to burn the CD before we can do a whole lot with it. So 2945 * we don't print anything here if we get an error back. 2946 */ 2947 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2948 SF_NO_PRINT); 2949 /* 2950 * Errors in reading the table of contents aren't fatal, we just 2951 * won't have a valid table of contents cached. 2952 */ 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 /* Number of TOC entries, plus leadout */ 2965 num_entries = (toch->ending_track - toch->starting_track) + 2; 2966 2967 if (num_entries <= 0) 2968 goto bailout; 2969 2970 toclen = num_entries * sizeof(struct cd_toc_entry); 2971 2972 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2973 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2974 SF_NO_PRINT); 2975 if (error != 0) { 2976 error = 0; 2977 bzero(&softc->toc, sizeof(softc->toc)); 2978 goto bailout; 2979 } 2980 2981 if (softc->quirks & CD_Q_BCD_TRACKS) { 2982 toch->starting_track = bcd2bin(toch->starting_track); 2983 toch->ending_track = bcd2bin(toch->ending_track); 2984 } 2985 /* 2986 * XXX KDM is this necessary? Probably only if the drive doesn't 2987 * return leadout information with the table of contents. 2988 */ 2989 cdindex = toch->starting_track + num_entries -1; 2990 if (cdindex == toch->ending_track + 1) { 2991 2992 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2993 (u_int8_t *)&leadout, sizeof(leadout), 2994 SF_NO_PRINT); 2995 if (error != 0) { 2996 error = 0; 2997 goto bailout; 2998 } 2999 softc->toc.entries[cdindex - toch->starting_track] = 3000 leadout.entry; 3001 } 3002 if (softc->quirks & CD_Q_BCD_TRACKS) { 3003 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3004 softc->toc.entries[cdindex].track = 3005 bcd2bin(softc->toc.entries[cdindex].track); 3006 } 3007 } 3008 3009 softc->flags |= CD_FLAG_VALID_TOC; 3010 3011 /* If the first track is audio, correct sector size. */ 3012 if ((softc->toc.entries[0].control & 4) == 0) { 3013 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3014 softc->disk->d_mediasize = 3015 (off_t)softc->params.blksize * softc->params.disksize; 3016 } 3017 3018bailout: 3019 3020 /* 3021 * We unconditionally (re)set the blocksize each time the 3022 * CD device is opened. This is because the CD can change, 3023 * and therefore the blocksize might change. 3024 * XXX problems here if some slice or partition is still 3025 * open with the old size? 3026 */ 3027 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3028 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3029 softc->disk->d_devstat->block_size = softc->params.blksize; 3030 3031 return (error); 3032} 3033 3034static int 3035cdsize(struct cam_periph *periph, u_int32_t *size) 3036{ 3037 struct cd_softc *softc; 3038 union ccb *ccb; 3039 struct scsi_read_capacity_data *rcap_buf; 3040 int error; 3041 3042 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3043 3044 softc = (struct cd_softc *)periph->softc; 3045 3046 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3047 3048 /* XXX Should be M_WAITOK */ 3049 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3050 M_SCSICD, M_NOWAIT | M_ZERO); 3051 if (rcap_buf == NULL) 3052 return (ENOMEM); 3053 3054 scsi_read_capacity(&ccb->csio, 3055 /*retries*/ cd_retry_count, 3056 cddone, 3057 MSG_SIMPLE_Q_TAG, 3058 rcap_buf, 3059 SSD_FULL_SIZE, 3060 /* timeout */20000); 3061 3062 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3063 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3064 3065 xpt_release_ccb(ccb); 3066 3067 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3068 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3069 /* Make sure we got at least some block size. */ 3070 if (error == 0 && softc->params.blksize == 0) 3071 error = EIO; 3072 /* 3073 * SCSI-3 mandates that the reported blocksize shall be 2048. 3074 * Older drives sometimes report funny values, trim it down to 3075 * 2048, or other parts of the kernel will get confused. 3076 * 3077 * XXX we leave drives alone that might report 512 bytes, as 3078 * well as drives reporting more weird sizes like perhaps 4K. 3079 */ 3080 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3081 softc->params.blksize = 2048; 3082 3083 free(rcap_buf, M_SCSICD); 3084 *size = softc->params.disksize; 3085 3086 return (error); 3087 3088} 3089 3090static int 3091cd6byteworkaround(union ccb *ccb) 3092{ 3093 u_int8_t *cdb; 3094 struct cam_periph *periph; 3095 struct cd_softc *softc; 3096 struct cd_mode_params *params; 3097 int frozen, found; 3098 3099 periph = xpt_path_periph(ccb->ccb_h.path); 3100 softc = (struct cd_softc *)periph->softc; 3101 3102 cdb = ccb->csio.cdb_io.cdb_bytes; 3103 3104 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3105 || ((cdb[0] != MODE_SENSE_6) 3106 && (cdb[0] != MODE_SELECT_6))) 3107 return (0); 3108 3109 /* 3110 * Because there is no convenient place to stash the overall 3111 * cd_mode_params structure pointer, we have to grab it like this. 3112 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3113 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3114 * 3115 * XXX It would be nice if, at some point, we could increase the 3116 * number of available peripheral private pointers. Both pointers 3117 * are currently used in most every peripheral driver. 3118 */ 3119 found = 0; 3120 3121 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3122 if (params->mode_buf == ccb->csio.data_ptr) { 3123 found = 1; 3124 break; 3125 } 3126 } 3127 3128 /* 3129 * This shouldn't happen. All mode sense and mode select 3130 * operations in the cd(4) driver MUST go through cdgetmode() and 3131 * cdsetmode()! 3132 */ 3133 if (found == 0) { 3134 xpt_print(periph->path, 3135 "mode buffer not found in mode queue!\n"); 3136 return (0); 3137 } 3138 3139 params->cdb_size = 10; 3140 softc->minimum_command_size = 10; 3141 xpt_print(ccb->ccb_h.path, 3142 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3143 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3144 3145 if (cdb[0] == MODE_SENSE_6) { 3146 struct scsi_mode_sense_10 ms10; 3147 struct scsi_mode_sense_6 *ms6; 3148 int len; 3149 3150 ms6 = (struct scsi_mode_sense_6 *)cdb; 3151 3152 bzero(&ms10, sizeof(ms10)); 3153 ms10.opcode = MODE_SENSE_10; 3154 ms10.byte2 = ms6->byte2; 3155 ms10.page = ms6->page; 3156 3157 /* 3158 * 10 byte mode header, block descriptor, 3159 * sizeof(union cd_pages) 3160 */ 3161 len = sizeof(struct cd_mode_data_10); 3162 ccb->csio.dxfer_len = len; 3163 3164 scsi_ulto2b(len, ms10.length); 3165 ms10.control = ms6->control; 3166 bcopy(&ms10, cdb, 10); 3167 ccb->csio.cdb_len = 10; 3168 } else { 3169 struct scsi_mode_select_10 ms10; 3170 struct scsi_mode_select_6 *ms6; 3171 struct scsi_mode_header_6 *header6; 3172 struct scsi_mode_header_10 *header10; 3173 struct scsi_mode_page_header *page_header; 3174 int blk_desc_len, page_num, page_size, len; 3175 3176 ms6 = (struct scsi_mode_select_6 *)cdb; 3177 3178 bzero(&ms10, sizeof(ms10)); 3179 ms10.opcode = MODE_SELECT_10; 3180 ms10.byte2 = ms6->byte2; 3181 3182 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3183 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3184 3185 page_header = find_mode_page_6(header6); 3186 page_num = page_header->page_code; 3187 3188 blk_desc_len = header6->blk_desc_len; 3189 3190 page_size = cdgetpagesize(page_num); 3191 3192 if (page_size != (page_header->page_length + 3193 sizeof(*page_header))) 3194 page_size = page_header->page_length + 3195 sizeof(*page_header); 3196 3197 len = sizeof(*header10) + blk_desc_len + page_size; 3198 3199 len = min(params->alloc_len, len); 3200 3201 /* 3202 * Since the 6 byte parameter header is shorter than the 10 3203 * byte parameter header, we need to copy the actual mode 3204 * page data, and the block descriptor, if any, so things wind 3205 * up in the right place. The regions will overlap, but 3206 * bcopy() does the right thing. 3207 */ 3208 bcopy(params->mode_buf + sizeof(*header6), 3209 params->mode_buf + sizeof(*header10), 3210 len - sizeof(*header10)); 3211 3212 /* Make sure these fields are set correctly. */ 3213 scsi_ulto2b(0, header10->data_length); 3214 header10->medium_type = 0; 3215 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3216 3217 ccb->csio.dxfer_len = len; 3218 3219 scsi_ulto2b(len, ms10.length); 3220 ms10.control = ms6->control; 3221 bcopy(&ms10, cdb, 10); 3222 ccb->csio.cdb_len = 10; 3223 } 3224 3225 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3226 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3227 xpt_action(ccb); 3228 if (frozen) { 3229 cam_release_devq(ccb->ccb_h.path, 3230 /*relsim_flags*/0, 3231 /*openings*/0, 3232 /*timeout*/0, 3233 /*getcount_only*/0); 3234 } 3235 3236 return (ERESTART); 3237} 3238 3239static int 3240cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3241{ 3242 struct cd_softc *softc; 3243 struct cam_periph *periph; 3244 int error, error_code, sense_key, asc, ascq; 3245 3246 periph = xpt_path_periph(ccb->ccb_h.path); 3247 softc = (struct cd_softc *)periph->softc; 3248 3249 error = 0; 3250 3251 /* 3252 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3253 * CDB comes back with this particular error, try transforming it 3254 * into the 10 byte version. 3255 */ 3256 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3257 error = cd6byteworkaround(ccb); 3258 } else if (scsi_extract_sense_ccb(ccb, 3259 &error_code, &sense_key, &asc, &ascq)) { 3260 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3261 error = cd6byteworkaround(ccb); 3262 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3263 asc == 0x28 && ascq == 0x00) 3264 disk_media_changed(softc->disk, M_NOWAIT); 3265 else if (sense_key == SSD_KEY_NOT_READY && 3266 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3267 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3268 disk_media_gone(softc->disk, M_NOWAIT); 3269 } 3270 } 3271 3272 if (error == ERESTART) 3273 return (error); 3274 3275 /* 3276 * XXX 3277 * Until we have a better way of doing pack validation, 3278 * don't treat UAs as errors. 3279 */ 3280 sense_flags |= SF_RETRY_UA; 3281 return (cam_periph_error(ccb, cam_flags, sense_flags, 3282 &softc->saved_ccb)); 3283} 3284 3285static void 3286cdmediapoll(void *arg) 3287{ 3288 struct cam_periph *periph = arg; 3289 struct cd_softc *softc = periph->softc; 3290 3291 if (softc->flags & CD_FLAG_CHANGER) 3292 return; 3293 3294 if (softc->state == CD_STATE_NORMAL && !softc->tur && 3295 softc->outstanding_cmds == 0) { 3296 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3297 softc->tur = 1; 3298 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 3299 } 3300 } 3301 /* Queue us up again */ 3302 if (cd_poll_period != 0) 3303 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3304} 3305 3306/* 3307 * Read table of contents 3308 */ 3309static int 3310cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3311 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3312{ 3313 struct scsi_read_toc *scsi_cmd; 3314 u_int32_t ntoc; 3315 struct ccb_scsiio *csio; 3316 union ccb *ccb; 3317 int error; 3318 3319 ntoc = len; 3320 error = 0; 3321 3322 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3323 3324 csio = &ccb->csio; 3325 3326 cam_fill_csio(csio, 3327 /* retries */ cd_retry_count, 3328 /* cbfcnp */ cddone, 3329 /* flags */ CAM_DIR_IN, 3330 /* tag_action */ MSG_SIMPLE_Q_TAG, 3331 /* data_ptr */ data, 3332 /* dxfer_len */ len, 3333 /* sense_len */ SSD_FULL_SIZE, 3334 sizeof(struct scsi_read_toc), 3335 /* timeout */ 50000); 3336 3337 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3338 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3339 3340 if (mode == CD_MSF_FORMAT) 3341 scsi_cmd->byte2 |= CD_MSF; 3342 scsi_cmd->from_track = start; 3343 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3344 scsi_cmd->data_len[0] = (ntoc) >> 8; 3345 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3346 3347 scsi_cmd->op_code = READ_TOC; 3348 3349 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3350 /*sense_flags*/SF_RETRY_UA | sense_flags); 3351 3352 xpt_release_ccb(ccb); 3353 3354 return(error); 3355} 3356 3357static int 3358cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3359 u_int32_t format, int track, 3360 struct cd_sub_channel_info *data, u_int32_t len) 3361{ 3362 struct scsi_read_subchannel *scsi_cmd; 3363 struct ccb_scsiio *csio; 3364 union ccb *ccb; 3365 int error; 3366 3367 error = 0; 3368 3369 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3370 3371 csio = &ccb->csio; 3372 3373 cam_fill_csio(csio, 3374 /* retries */ cd_retry_count, 3375 /* cbfcnp */ cddone, 3376 /* flags */ CAM_DIR_IN, 3377 /* tag_action */ MSG_SIMPLE_Q_TAG, 3378 /* data_ptr */ (u_int8_t *)data, 3379 /* dxfer_len */ len, 3380 /* sense_len */ SSD_FULL_SIZE, 3381 sizeof(struct scsi_read_subchannel), 3382 /* timeout */ 50000); 3383 3384 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3385 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3386 3387 scsi_cmd->op_code = READ_SUBCHANNEL; 3388 if (mode == CD_MSF_FORMAT) 3389 scsi_cmd->byte1 |= CD_MSF; 3390 scsi_cmd->byte2 = SRS_SUBQ; 3391 scsi_cmd->subchan_format = format; 3392 scsi_cmd->track = track; 3393 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3394 scsi_cmd->control = 0; 3395 3396 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3397 /*sense_flags*/SF_RETRY_UA); 3398 3399 xpt_release_ccb(ccb); 3400 3401 return(error); 3402} 3403 3404 3405/* 3406 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3407 * routine. See comments in cd6byteworkaround() for details. 3408 */ 3409static int 3410cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3411 u_int32_t page) 3412{ 3413 struct ccb_scsiio *csio; 3414 struct cd_softc *softc; 3415 union ccb *ccb; 3416 int param_len; 3417 int error; 3418 3419 softc = (struct cd_softc *)periph->softc; 3420 3421 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3422 3423 csio = &ccb->csio; 3424 3425 data->cdb_size = softc->minimum_command_size; 3426 if (data->cdb_size < 10) 3427 param_len = sizeof(struct cd_mode_data); 3428 else 3429 param_len = sizeof(struct cd_mode_data_10); 3430 3431 /* Don't say we've got more room than we actually allocated */ 3432 param_len = min(param_len, data->alloc_len); 3433 3434 scsi_mode_sense_len(csio, 3435 /* retries */ cd_retry_count, 3436 /* cbfcnp */ cddone, 3437 /* tag_action */ MSG_SIMPLE_Q_TAG, 3438 /* dbd */ 0, 3439 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3440 /* page */ page, 3441 /* param_buf */ data->mode_buf, 3442 /* param_len */ param_len, 3443 /* minimum_cmd_size */ softc->minimum_command_size, 3444 /* sense_len */ SSD_FULL_SIZE, 3445 /* timeout */ 50000); 3446 3447 /* 3448 * It would be nice not to have to do this, but there's no 3449 * available pointer in the CCB that would allow us to stuff the 3450 * mode params structure in there and retrieve it in 3451 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3452 * lets the caller know what CDB size we ended up using, so they 3453 * can find the actual mode page offset. 3454 */ 3455 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3456 3457 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3458 /*sense_flags*/SF_RETRY_UA); 3459 3460 xpt_release_ccb(ccb); 3461 3462 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3463 3464 /* 3465 * This is a bit of belt-and-suspenders checking, but if we run 3466 * into a situation where the target sends back multiple block 3467 * descriptors, we might not have enough space in the buffer to 3468 * see the whole mode page. Better to return an error than 3469 * potentially access memory beyond our malloced region. 3470 */ 3471 if (error == 0) { 3472 u_int32_t data_len; 3473 3474 if (data->cdb_size == 10) { 3475 struct scsi_mode_header_10 *hdr10; 3476 3477 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3478 data_len = scsi_2btoul(hdr10->data_length); 3479 data_len += sizeof(hdr10->data_length); 3480 } else { 3481 struct scsi_mode_header_6 *hdr6; 3482 3483 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3484 data_len = hdr6->data_length; 3485 data_len += sizeof(hdr6->data_length); 3486 } 3487 3488 /* 3489 * Complain if there is more mode data available than we 3490 * allocated space for. This could potentially happen if 3491 * we miscalculated the page length for some reason, if the 3492 * drive returns multiple block descriptors, or if it sets 3493 * the data length incorrectly. 3494 */ 3495 if (data_len > data->alloc_len) { 3496 xpt_print(periph->path, "allocated modepage %d length " 3497 "%d < returned length %d\n", page, data->alloc_len, 3498 data_len); 3499 error = ENOSPC; 3500 } 3501 } 3502 return (error); 3503} 3504 3505/* 3506 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3507 * routine. See comments in cd6byteworkaround() for details. 3508 */ 3509static int 3510cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3511{ 3512 struct ccb_scsiio *csio; 3513 struct cd_softc *softc; 3514 union ccb *ccb; 3515 int cdb_size, param_len; 3516 int error; 3517 3518 softc = (struct cd_softc *)periph->softc; 3519 3520 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3521 3522 csio = &ccb->csio; 3523 3524 error = 0; 3525 3526 /* 3527 * If the data is formatted for the 10 byte version of the mode 3528 * select parameter list, we need to use the 10 byte CDB. 3529 * Otherwise, we use whatever the stored minimum command size. 3530 */ 3531 if (data->cdb_size == 10) 3532 cdb_size = data->cdb_size; 3533 else 3534 cdb_size = softc->minimum_command_size; 3535 3536 if (cdb_size >= 10) { 3537 struct scsi_mode_header_10 *mode_header; 3538 u_int32_t data_len; 3539 3540 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3541 3542 data_len = scsi_2btoul(mode_header->data_length); 3543 3544 scsi_ulto2b(0, mode_header->data_length); 3545 /* 3546 * SONY drives do not allow a mode select with a medium_type 3547 * value that has just been returned by a mode sense; use a 3548 * medium_type of 0 (Default) instead. 3549 */ 3550 mode_header->medium_type = 0; 3551 3552 /* 3553 * Pass back whatever the drive passed to us, plus the size 3554 * of the data length field. 3555 */ 3556 param_len = data_len + sizeof(mode_header->data_length); 3557 3558 } else { 3559 struct scsi_mode_header_6 *mode_header; 3560 3561 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3562 3563 param_len = mode_header->data_length + 1; 3564 3565 mode_header->data_length = 0; 3566 /* 3567 * SONY drives do not allow a mode select with a medium_type 3568 * value that has just been returned by a mode sense; use a 3569 * medium_type of 0 (Default) instead. 3570 */ 3571 mode_header->medium_type = 0; 3572 } 3573 3574 /* Don't say we've got more room than we actually allocated */ 3575 param_len = min(param_len, data->alloc_len); 3576 3577 scsi_mode_select_len(csio, 3578 /* retries */ cd_retry_count, 3579 /* cbfcnp */ cddone, 3580 /* tag_action */ MSG_SIMPLE_Q_TAG, 3581 /* scsi_page_fmt */ 1, 3582 /* save_pages */ 0, 3583 /* param_buf */ data->mode_buf, 3584 /* param_len */ param_len, 3585 /* minimum_cmd_size */ cdb_size, 3586 /* sense_len */ SSD_FULL_SIZE, 3587 /* timeout */ 50000); 3588 3589 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3590 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3591 3592 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3593 /*sense_flags*/SF_RETRY_UA); 3594 3595 xpt_release_ccb(ccb); 3596 3597 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3598 3599 return (error); 3600} 3601 3602 3603static int 3604cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3605{ 3606 struct ccb_scsiio *csio; 3607 union ccb *ccb; 3608 int error; 3609 u_int8_t cdb_len; 3610 3611 error = 0; 3612 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3613 csio = &ccb->csio; 3614 /* 3615 * Use the smallest possible command to perform the operation. 3616 */ 3617 if ((len & 0xffff0000) == 0) { 3618 /* 3619 * We can fit in a 10 byte cdb. 3620 */ 3621 struct scsi_play_10 *scsi_cmd; 3622 3623 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3624 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3625 scsi_cmd->op_code = PLAY_10; 3626 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3627 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3628 cdb_len = sizeof(*scsi_cmd); 3629 } else { 3630 struct scsi_play_12 *scsi_cmd; 3631 3632 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3633 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3634 scsi_cmd->op_code = PLAY_12; 3635 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3636 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3637 cdb_len = sizeof(*scsi_cmd); 3638 } 3639 cam_fill_csio(csio, 3640 /*retries*/ cd_retry_count, 3641 cddone, 3642 /*flags*/CAM_DIR_NONE, 3643 MSG_SIMPLE_Q_TAG, 3644 /*dataptr*/NULL, 3645 /*datalen*/0, 3646 /*sense_len*/SSD_FULL_SIZE, 3647 cdb_len, 3648 /*timeout*/50 * 1000); 3649 3650 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3651 /*sense_flags*/SF_RETRY_UA); 3652 3653 xpt_release_ccb(ccb); 3654 3655 return(error); 3656} 3657 3658static int 3659cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3660 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3661{ 3662 struct scsi_play_msf *scsi_cmd; 3663 struct ccb_scsiio *csio; 3664 union ccb *ccb; 3665 int error; 3666 3667 error = 0; 3668 3669 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3670 3671 csio = &ccb->csio; 3672 3673 cam_fill_csio(csio, 3674 /* retries */ cd_retry_count, 3675 /* cbfcnp */ cddone, 3676 /* flags */ CAM_DIR_NONE, 3677 /* tag_action */ MSG_SIMPLE_Q_TAG, 3678 /* data_ptr */ NULL, 3679 /* dxfer_len */ 0, 3680 /* sense_len */ SSD_FULL_SIZE, 3681 sizeof(struct scsi_play_msf), 3682 /* timeout */ 50000); 3683 3684 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3685 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3686 3687 scsi_cmd->op_code = PLAY_MSF; 3688 scsi_cmd->start_m = startm; 3689 scsi_cmd->start_s = starts; 3690 scsi_cmd->start_f = startf; 3691 scsi_cmd->end_m = endm; 3692 scsi_cmd->end_s = ends; 3693 scsi_cmd->end_f = endf; 3694 3695 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3696 /*sense_flags*/SF_RETRY_UA); 3697 3698 xpt_release_ccb(ccb); 3699 3700 return(error); 3701} 3702 3703 3704static int 3705cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3706 u_int32_t etrack, u_int32_t eindex) 3707{ 3708 struct scsi_play_track *scsi_cmd; 3709 struct ccb_scsiio *csio; 3710 union ccb *ccb; 3711 int error; 3712 3713 error = 0; 3714 3715 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3716 3717 csio = &ccb->csio; 3718 3719 cam_fill_csio(csio, 3720 /* retries */ cd_retry_count, 3721 /* cbfcnp */ cddone, 3722 /* flags */ CAM_DIR_NONE, 3723 /* tag_action */ MSG_SIMPLE_Q_TAG, 3724 /* data_ptr */ NULL, 3725 /* dxfer_len */ 0, 3726 /* sense_len */ SSD_FULL_SIZE, 3727 sizeof(struct scsi_play_track), 3728 /* timeout */ 50000); 3729 3730 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3731 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3732 3733 scsi_cmd->op_code = PLAY_TRACK; 3734 scsi_cmd->start_track = strack; 3735 scsi_cmd->start_index = sindex; 3736 scsi_cmd->end_track = etrack; 3737 scsi_cmd->end_index = eindex; 3738 3739 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3740 /*sense_flags*/SF_RETRY_UA); 3741 3742 xpt_release_ccb(ccb); 3743 3744 return(error); 3745} 3746 3747static int 3748cdpause(struct cam_periph *periph, u_int32_t go) 3749{ 3750 struct scsi_pause *scsi_cmd; 3751 struct ccb_scsiio *csio; 3752 union ccb *ccb; 3753 int error; 3754 3755 error = 0; 3756 3757 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3758 3759 csio = &ccb->csio; 3760 3761 cam_fill_csio(csio, 3762 /* retries */ cd_retry_count, 3763 /* cbfcnp */ cddone, 3764 /* flags */ CAM_DIR_NONE, 3765 /* tag_action */ MSG_SIMPLE_Q_TAG, 3766 /* data_ptr */ NULL, 3767 /* dxfer_len */ 0, 3768 /* sense_len */ SSD_FULL_SIZE, 3769 sizeof(struct scsi_pause), 3770 /* timeout */ 50000); 3771 3772 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3773 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3774 3775 scsi_cmd->op_code = PAUSE; 3776 scsi_cmd->resume = go; 3777 3778 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3779 /*sense_flags*/SF_RETRY_UA); 3780 3781 xpt_release_ccb(ccb); 3782 3783 return(error); 3784} 3785 3786static int 3787cdstartunit(struct cam_periph *periph, int load) 3788{ 3789 union ccb *ccb; 3790 int error; 3791 3792 error = 0; 3793 3794 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3795 3796 scsi_start_stop(&ccb->csio, 3797 /* retries */ cd_retry_count, 3798 /* cbfcnp */ cddone, 3799 /* tag_action */ MSG_SIMPLE_Q_TAG, 3800 /* start */ TRUE, 3801 /* load_eject */ load, 3802 /* immediate */ FALSE, 3803 /* sense_len */ SSD_FULL_SIZE, 3804 /* timeout */ 50000); 3805 3806 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3807 /*sense_flags*/SF_RETRY_UA); 3808 3809 xpt_release_ccb(ccb); 3810 3811 return(error); 3812} 3813 3814static int 3815cdstopunit(struct cam_periph *periph, u_int32_t eject) 3816{ 3817 union ccb *ccb; 3818 int error; 3819 3820 error = 0; 3821 3822 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3823 3824 scsi_start_stop(&ccb->csio, 3825 /* retries */ cd_retry_count, 3826 /* cbfcnp */ cddone, 3827 /* tag_action */ MSG_SIMPLE_Q_TAG, 3828 /* start */ FALSE, 3829 /* load_eject */ eject, 3830 /* immediate */ FALSE, 3831 /* sense_len */ SSD_FULL_SIZE, 3832 /* timeout */ 50000); 3833 3834 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3835 /*sense_flags*/SF_RETRY_UA); 3836 3837 xpt_release_ccb(ccb); 3838 3839 return(error); 3840} 3841 3842static int 3843cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3844{ 3845 struct scsi_set_speed *scsi_cmd; 3846 struct ccb_scsiio *csio; 3847 union ccb *ccb; 3848 int error; 3849 3850 error = 0; 3851 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3852 csio = &ccb->csio; 3853 3854 /* Preserve old behavior: units in multiples of CDROM speed */ 3855 if (rdspeed < 177) 3856 rdspeed *= 177; 3857 if (wrspeed < 177) 3858 wrspeed *= 177; 3859 3860 cam_fill_csio(csio, 3861 /* retries */ cd_retry_count, 3862 /* cbfcnp */ cddone, 3863 /* flags */ CAM_DIR_NONE, 3864 /* tag_action */ MSG_SIMPLE_Q_TAG, 3865 /* data_ptr */ NULL, 3866 /* dxfer_len */ 0, 3867 /* sense_len */ SSD_FULL_SIZE, 3868 sizeof(struct scsi_set_speed), 3869 /* timeout */ 50000); 3870 3871 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3872 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3873 3874 scsi_cmd->opcode = SET_CD_SPEED; 3875 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3876 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3877 3878 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3879 /*sense_flags*/SF_RETRY_UA); 3880 3881 xpt_release_ccb(ccb); 3882 3883 return(error); 3884} 3885 3886static int 3887cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3888{ 3889 union ccb *ccb; 3890 u_int8_t *databuf; 3891 u_int32_t lba; 3892 int error; 3893 int length; 3894 3895 error = 0; 3896 databuf = NULL; 3897 lba = 0; 3898 3899 switch (authinfo->format) { 3900 case DVD_REPORT_AGID: 3901 length = sizeof(struct scsi_report_key_data_agid); 3902 break; 3903 case DVD_REPORT_CHALLENGE: 3904 length = sizeof(struct scsi_report_key_data_challenge); 3905 break; 3906 case DVD_REPORT_KEY1: 3907 length = sizeof(struct scsi_report_key_data_key1_key2); 3908 break; 3909 case DVD_REPORT_TITLE_KEY: 3910 length = sizeof(struct scsi_report_key_data_title); 3911 /* The lba field is only set for the title key */ 3912 lba = authinfo->lba; 3913 break; 3914 case DVD_REPORT_ASF: 3915 length = sizeof(struct scsi_report_key_data_asf); 3916 break; 3917 case DVD_REPORT_RPC: 3918 length = sizeof(struct scsi_report_key_data_rpc); 3919 break; 3920 case DVD_INVALIDATE_AGID: 3921 length = 0; 3922 break; 3923 default: 3924 return (EINVAL); 3925 } 3926 3927 if (length != 0) { 3928 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3929 } else 3930 databuf = NULL; 3931 3932 cam_periph_lock(periph); 3933 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3934 3935 scsi_report_key(&ccb->csio, 3936 /* retries */ cd_retry_count, 3937 /* cbfcnp */ cddone, 3938 /* tag_action */ MSG_SIMPLE_Q_TAG, 3939 /* lba */ lba, 3940 /* agid */ authinfo->agid, 3941 /* key_format */ authinfo->format, 3942 /* data_ptr */ databuf, 3943 /* dxfer_len */ length, 3944 /* sense_len */ SSD_FULL_SIZE, 3945 /* timeout */ 50000); 3946 3947 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3948 /*sense_flags*/SF_RETRY_UA); 3949 3950 if (error != 0) 3951 goto bailout; 3952 3953 if (ccb->csio.resid != 0) { 3954 xpt_print(periph->path, "warning, residual for report key " 3955 "command is %d\n", ccb->csio.resid); 3956 } 3957 3958 switch(authinfo->format) { 3959 case DVD_REPORT_AGID: { 3960 struct scsi_report_key_data_agid *agid_data; 3961 3962 agid_data = (struct scsi_report_key_data_agid *)databuf; 3963 3964 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3965 RKD_AGID_SHIFT; 3966 break; 3967 } 3968 case DVD_REPORT_CHALLENGE: { 3969 struct scsi_report_key_data_challenge *chal_data; 3970 3971 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3972 3973 bcopy(chal_data->challenge_key, authinfo->keychal, 3974 min(sizeof(chal_data->challenge_key), 3975 sizeof(authinfo->keychal))); 3976 break; 3977 } 3978 case DVD_REPORT_KEY1: { 3979 struct scsi_report_key_data_key1_key2 *key1_data; 3980 3981 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3982 3983 bcopy(key1_data->key1, authinfo->keychal, 3984 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3985 break; 3986 } 3987 case DVD_REPORT_TITLE_KEY: { 3988 struct scsi_report_key_data_title *title_data; 3989 3990 title_data = (struct scsi_report_key_data_title *)databuf; 3991 3992 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3993 RKD_TITLE_CPM_SHIFT; 3994 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3995 RKD_TITLE_CP_SEC_SHIFT; 3996 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3997 RKD_TITLE_CMGS_SHIFT; 3998 bcopy(title_data->title_key, authinfo->keychal, 3999 min(sizeof(title_data->title_key), 4000 sizeof(authinfo->keychal))); 4001 break; 4002 } 4003 case DVD_REPORT_ASF: { 4004 struct scsi_report_key_data_asf *asf_data; 4005 4006 asf_data = (struct scsi_report_key_data_asf *)databuf; 4007 4008 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 4009 break; 4010 } 4011 case DVD_REPORT_RPC: { 4012 struct scsi_report_key_data_rpc *rpc_data; 4013 4014 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 4015 4016 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 4017 RKD_RPC_TYPE_SHIFT; 4018 authinfo->vend_rsts = 4019 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 4020 RKD_RPC_VENDOR_RESET_SHIFT; 4021 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4022 authinfo->region = rpc_data->region_mask; 4023 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4024 break; 4025 } 4026 case DVD_INVALIDATE_AGID: 4027 break; 4028 default: 4029 /* This should be impossible, since we checked above */ 4030 error = EINVAL; 4031 goto bailout; 4032 break; /* NOTREACHED */ 4033 } 4034 4035bailout: 4036 xpt_release_ccb(ccb); 4037 cam_periph_unlock(periph); 4038 4039 if (databuf != NULL) 4040 free(databuf, M_DEVBUF); 4041 4042 return(error); 4043} 4044 4045static int 4046cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4047{ 4048 union ccb *ccb; 4049 u_int8_t *databuf; 4050 int length; 4051 int error; 4052 4053 error = 0; 4054 databuf = NULL; 4055 4056 switch(authinfo->format) { 4057 case DVD_SEND_CHALLENGE: { 4058 struct scsi_report_key_data_challenge *challenge_data; 4059 4060 length = sizeof(*challenge_data); 4061 4062 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4063 4064 databuf = (u_int8_t *)challenge_data; 4065 4066 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4067 challenge_data->data_len); 4068 4069 bcopy(authinfo->keychal, challenge_data->challenge_key, 4070 min(sizeof(authinfo->keychal), 4071 sizeof(challenge_data->challenge_key))); 4072 break; 4073 } 4074 case DVD_SEND_KEY2: { 4075 struct scsi_report_key_data_key1_key2 *key2_data; 4076 4077 length = sizeof(*key2_data); 4078 4079 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4080 4081 databuf = (u_int8_t *)key2_data; 4082 4083 scsi_ulto2b(length - sizeof(key2_data->data_len), 4084 key2_data->data_len); 4085 4086 bcopy(authinfo->keychal, key2_data->key1, 4087 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4088 4089 break; 4090 } 4091 case DVD_SEND_RPC: { 4092 struct scsi_send_key_data_rpc *rpc_data; 4093 4094 length = sizeof(*rpc_data); 4095 4096 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4097 4098 databuf = (u_int8_t *)rpc_data; 4099 4100 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4101 rpc_data->data_len); 4102 4103 rpc_data->region_code = authinfo->region; 4104 break; 4105 } 4106 default: 4107 return (EINVAL); 4108 } 4109 4110 cam_periph_lock(periph); 4111 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4112 4113 scsi_send_key(&ccb->csio, 4114 /* retries */ cd_retry_count, 4115 /* cbfcnp */ cddone, 4116 /* tag_action */ MSG_SIMPLE_Q_TAG, 4117 /* agid */ authinfo->agid, 4118 /* key_format */ authinfo->format, 4119 /* data_ptr */ databuf, 4120 /* dxfer_len */ length, 4121 /* sense_len */ SSD_FULL_SIZE, 4122 /* timeout */ 50000); 4123 4124 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4125 /*sense_flags*/SF_RETRY_UA); 4126 4127 xpt_release_ccb(ccb); 4128 cam_periph_unlock(periph); 4129 4130 if (databuf != NULL) 4131 free(databuf, M_DEVBUF); 4132 4133 return(error); 4134} 4135 4136static int 4137cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4138{ 4139 union ccb *ccb; 4140 u_int8_t *databuf; 4141 u_int32_t address; 4142 int error; 4143 int length; 4144 4145 error = 0; 4146 databuf = NULL; 4147 /* The address is reserved for many of the formats */ 4148 address = 0; 4149 4150 switch(dvdstruct->format) { 4151 case DVD_STRUCT_PHYSICAL: 4152 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4153 break; 4154 case DVD_STRUCT_COPYRIGHT: 4155 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4156 break; 4157 case DVD_STRUCT_DISCKEY: 4158 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4159 break; 4160 case DVD_STRUCT_BCA: 4161 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4162 break; 4163 case DVD_STRUCT_MANUFACT: 4164 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4165 break; 4166 case DVD_STRUCT_CMI: 4167 return (ENODEV); 4168 case DVD_STRUCT_PROTDISCID: 4169 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4170 break; 4171 case DVD_STRUCT_DISCKEYBLOCK: 4172 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4173 break; 4174 case DVD_STRUCT_DDS: 4175 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4176 break; 4177 case DVD_STRUCT_MEDIUM_STAT: 4178 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4179 break; 4180 case DVD_STRUCT_SPARE_AREA: 4181 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4182 break; 4183 case DVD_STRUCT_RMD_LAST: 4184 return (ENODEV); 4185 case DVD_STRUCT_RMD_RMA: 4186 return (ENODEV); 4187 case DVD_STRUCT_PRERECORDED: 4188 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4189 break; 4190 case DVD_STRUCT_UNIQUEID: 4191 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4192 break; 4193 case DVD_STRUCT_DCB: 4194 return (ENODEV); 4195 case DVD_STRUCT_LIST: 4196 /* 4197 * This is the maximum allocation length for the READ DVD 4198 * STRUCTURE command. There's nothing in the MMC3 spec 4199 * that indicates a limit in the amount of data that can 4200 * be returned from this call, other than the limits 4201 * imposed by the 2-byte length variables. 4202 */ 4203 length = 65535; 4204 break; 4205 default: 4206 return (EINVAL); 4207 } 4208 4209 if (length != 0) { 4210 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4211 } else 4212 databuf = NULL; 4213 4214 cam_periph_lock(periph); 4215 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4216 4217 scsi_read_dvd_structure(&ccb->csio, 4218 /* retries */ cd_retry_count, 4219 /* cbfcnp */ cddone, 4220 /* tag_action */ MSG_SIMPLE_Q_TAG, 4221 /* lba */ address, 4222 /* layer_number */ dvdstruct->layer_num, 4223 /* key_format */ dvdstruct->format, 4224 /* agid */ dvdstruct->agid, 4225 /* data_ptr */ databuf, 4226 /* dxfer_len */ length, 4227 /* sense_len */ SSD_FULL_SIZE, 4228 /* timeout */ 50000); 4229 4230 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4231 /*sense_flags*/SF_RETRY_UA); 4232 4233 if (error != 0) 4234 goto bailout; 4235 4236 switch(dvdstruct->format) { 4237 case DVD_STRUCT_PHYSICAL: { 4238 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4239 struct dvd_layer *outlayer; 4240 struct scsi_read_dvd_struct_data_physical *phys_data; 4241 4242 phys_data = 4243 (struct scsi_read_dvd_struct_data_physical *)databuf; 4244 inlayer = &phys_data->layer_desc; 4245 outlayer = (struct dvd_layer *)&dvdstruct->data; 4246 4247 dvdstruct->length = sizeof(*inlayer); 4248 4249 outlayer->book_type = (inlayer->book_type_version & 4250 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4251 outlayer->book_version = (inlayer->book_type_version & 4252 RDSD_BOOK_VERSION_MASK); 4253 outlayer->disc_size = (inlayer->disc_size_max_rate & 4254 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4255 outlayer->max_rate = (inlayer->disc_size_max_rate & 4256 RDSD_MAX_RATE_MASK); 4257 outlayer->nlayers = (inlayer->layer_info & 4258 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4259 outlayer->track_path = (inlayer->layer_info & 4260 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4261 outlayer->layer_type = (inlayer->layer_info & 4262 RDSD_LAYER_TYPE_MASK); 4263 outlayer->linear_density = (inlayer->density & 4264 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4265 outlayer->track_density = (inlayer->density & 4266 RDSD_TRACK_DENSITY_MASK); 4267 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4268 RDSD_BCA_SHIFT; 4269 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4270 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4271 outlayer->end_sector_l0 = 4272 scsi_3btoul(inlayer->end_sector_layer0); 4273 break; 4274 } 4275 case DVD_STRUCT_COPYRIGHT: { 4276 struct scsi_read_dvd_struct_data_copyright *copy_data; 4277 4278 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4279 databuf; 4280 4281 dvdstruct->cpst = copy_data->cps_type; 4282 dvdstruct->rmi = copy_data->region_info; 4283 dvdstruct->length = 0; 4284 4285 break; 4286 } 4287 default: 4288 /* 4289 * Tell the user what the overall length is, no matter 4290 * what we can actually fit in the data buffer. 4291 */ 4292 dvdstruct->length = length - ccb->csio.resid - 4293 sizeof(struct scsi_read_dvd_struct_data_header); 4294 4295 /* 4296 * But only actually copy out the smaller of what we read 4297 * in or what the structure can take. 4298 */ 4299 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4300 dvdstruct->data, 4301 min(sizeof(dvdstruct->data), dvdstruct->length)); 4302 break; 4303 } 4304 4305bailout: 4306 xpt_release_ccb(ccb); 4307 cam_periph_unlock(periph); 4308 4309 if (databuf != NULL) 4310 free(databuf, M_DEVBUF); 4311 4312 return(error); 4313} 4314 4315void 4316scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4317 void (*cbfcnp)(struct cam_periph *, union ccb *), 4318 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4319 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4320 u_int8_t sense_len, u_int32_t timeout) 4321{ 4322 struct scsi_report_key *scsi_cmd; 4323 4324 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4325 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4326 scsi_cmd->opcode = REPORT_KEY; 4327 scsi_ulto4b(lba, scsi_cmd->lba); 4328 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4329 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4330 (key_format & RK_KF_KEYFORMAT_MASK); 4331 4332 cam_fill_csio(csio, 4333 retries, 4334 cbfcnp, 4335 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4336 tag_action, 4337 /*data_ptr*/ data_ptr, 4338 /*dxfer_len*/ dxfer_len, 4339 sense_len, 4340 sizeof(*scsi_cmd), 4341 timeout); 4342} 4343 4344void 4345scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4346 void (*cbfcnp)(struct cam_periph *, union ccb *), 4347 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4348 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4349 u_int32_t timeout) 4350{ 4351 struct scsi_send_key *scsi_cmd; 4352 4353 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4354 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4355 scsi_cmd->opcode = SEND_KEY; 4356 4357 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4358 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4359 (key_format & RK_KF_KEYFORMAT_MASK); 4360 4361 cam_fill_csio(csio, 4362 retries, 4363 cbfcnp, 4364 /*flags*/ CAM_DIR_OUT, 4365 tag_action, 4366 /*data_ptr*/ data_ptr, 4367 /*dxfer_len*/ dxfer_len, 4368 sense_len, 4369 sizeof(*scsi_cmd), 4370 timeout); 4371} 4372 4373 4374void 4375scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4376 void (*cbfcnp)(struct cam_periph *, union ccb *), 4377 u_int8_t tag_action, u_int32_t address, 4378 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4379 u_int8_t *data_ptr, u_int32_t dxfer_len, 4380 u_int8_t sense_len, u_int32_t timeout) 4381{ 4382 struct scsi_read_dvd_structure *scsi_cmd; 4383 4384 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4385 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4386 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4387 4388 scsi_ulto4b(address, scsi_cmd->address); 4389 scsi_cmd->layer_number = layer_number; 4390 scsi_cmd->format = format; 4391 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4392 /* The AGID is the top two bits of this byte */ 4393 scsi_cmd->agid = agid << 6; 4394 4395 cam_fill_csio(csio, 4396 retries, 4397 cbfcnp, 4398 /*flags*/ CAM_DIR_IN, 4399 tag_action, 4400 /*data_ptr*/ data_ptr, 4401 /*dxfer_len*/ dxfer_len, 4402 sense_len, 4403 sizeof(*scsi_cmd), 4404 timeout); 4405} 4406