scsi_cd.c revision 257049
1/*- 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/*- 29 * Portions of this driver taken from the original FreeBSD cd driver. 30 * Written by Julian Elischer (julian@tfs.com) 31 * for TRW Financial Systems for use under the MACH(2.5) operating system. 32 * 33 * TRW Financial Systems, in accordance with their agreement with Carnegie 34 * Mellon University, makes this software available to CMU to distribute 35 * or use in any manner that they see fit as long as this message is kept with 36 * the software. For this reason TFS also grants any other persons or 37 * organisations permission to use or modify this software. 38 * 39 * TFS supplies this software to be publicly redistributed 40 * on the understanding that TFS is not responsible for the correct 41 * functioning of this software in any circumstances. 42 * 43 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 44 * 45 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 46 */ 47 48#include <sys/cdefs.h> 49__FBSDID("$FreeBSD: stable/10/sys/cam/scsi/scsi_cd.c 257049 2013-10-24 10:33:31Z 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} 432 433static void 434cdcleanup(struct cam_periph *periph) 435{ 436 struct cd_softc *softc; 437 438 softc = (struct cd_softc *)periph->softc; 439 440 /* 441 * In the queued, non-active case, the device in question 442 * has already been removed from the changer run queue. Since this 443 * device is active, we need to de-activate it, and schedule 444 * another device to run. (if there is another one to run) 445 */ 446 if ((softc->flags & CD_FLAG_CHANGER) 447 && (softc->flags & CD_FLAG_ACTIVE)) { 448 449 /* 450 * The purpose of the short timeout is soley to determine 451 * whether the current device has finished or not. Well, 452 * since we're removing the active device, we know that it 453 * is finished. So, get rid of the short timeout. 454 * Otherwise, if we're in the time period before the short 455 * timeout fires, and there are no other devices in the 456 * queue to run, there won't be any other device put in the 457 * active slot. i.e., when we call cdrunchangerqueue() 458 * below, it won't do anything. Then, when the short 459 * timeout fires, it'll look at the "current device", which 460 * we are free below, and possibly panic the kernel on a 461 * bogus pointer reference. 462 * 463 * The long timeout doesn't really matter, since we 464 * decrement the qfrozen_cnt to indicate that there is 465 * nothing in the active slot now. Therefore, there won't 466 * be any bogus pointer references there. 467 */ 468 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 469 callout_stop(&softc->changer->short_handle); 470 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 471 } 472 softc->changer->devq.qfrozen_cnt--; 473 softc->changer->flags |= CHANGER_MANUAL_CALL; 474 cdrunchangerqueue(softc->changer); 475 } 476 477 /* 478 * If we're removing the last device on the changer, go ahead and 479 * remove the changer device structure. 480 */ 481 if ((softc->flags & CD_FLAG_CHANGER) 482 && (--softc->changer->num_devices == 0)) { 483 484 /* 485 * Theoretically, there shouldn't be any timeouts left, but 486 * I'm not completely sure that that will be the case. So, 487 * it won't hurt to check and see if there are any left. 488 */ 489 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 490 callout_stop(&softc->changer->long_handle); 491 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 492 } 493 494 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 495 callout_stop(&softc->changer->short_handle); 496 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 497 } 498 499 mtx_lock(&changerq_mtx); 500 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 501 changer_links); 502 num_changers--; 503 mtx_unlock(&changerq_mtx); 504 xpt_print(periph->path, "removing changer entry\n"); 505 free(softc->changer, M_DEVBUF); 506 } 507 cam_periph_unlock(periph); 508 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 509 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 510 xpt_print(periph->path, "can't remove sysctl context\n"); 511 } 512 513 callout_drain(&softc->mediapoll_c); 514 disk_destroy(softc->disk); 515 free(softc, M_DEVBUF); 516 cam_periph_lock(periph); 517} 518 519static void 520cdasync(void *callback_arg, u_int32_t code, 521 struct cam_path *path, void *arg) 522{ 523 struct cam_periph *periph; 524 struct cd_softc *softc; 525 526 periph = (struct cam_periph *)callback_arg; 527 switch (code) { 528 case AC_FOUND_DEVICE: 529 { 530 struct ccb_getdev *cgd; 531 cam_status status; 532 533 cgd = (struct ccb_getdev *)arg; 534 if (cgd == NULL) 535 break; 536 537 if (cgd->protocol != PROTO_SCSI) 538 break; 539 540 if (SID_TYPE(&cgd->inq_data) != T_CDROM 541 && SID_TYPE(&cgd->inq_data) != T_WORM) 542 break; 543 544 /* 545 * Allocate a peripheral instance for 546 * this device and start the probe 547 * process. 548 */ 549 status = cam_periph_alloc(cdregister, cdoninvalidate, 550 cdcleanup, cdstart, 551 "cd", CAM_PERIPH_BIO, 552 cgd->ccb_h.path, cdasync, 553 AC_FOUND_DEVICE, cgd); 554 555 if (status != CAM_REQ_CMP 556 && status != CAM_REQ_INPROG) 557 printf("cdasync: Unable to attach new device " 558 "due to status 0x%x\n", status); 559 560 break; 561 } 562 case AC_UNIT_ATTENTION: 563 { 564 union ccb *ccb; 565 int error_code, sense_key, asc, ascq; 566 567 softc = (struct cd_softc *)periph->softc; 568 ccb = (union ccb *)arg; 569 570 /* 571 * Handle all media change UNIT ATTENTIONs except 572 * our own, as they will be handled by cderror(). 573 */ 574 if (xpt_path_periph(ccb->ccb_h.path) != periph && 575 scsi_extract_sense_ccb(ccb, 576 &error_code, &sense_key, &asc, &ascq)) { 577 if (asc == 0x28 && ascq == 0x00) 578 disk_media_changed(softc->disk, M_NOWAIT); 579 } 580 cam_periph_async(periph, code, path, arg); 581 break; 582 } 583 case AC_SCSI_AEN: 584 softc = (struct cd_softc *)periph->softc; 585 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 586 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 587 softc->tur = 1; 588 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 589 } 590 } 591 /* FALLTHROUGH */ 592 case AC_SENT_BDR: 593 case AC_BUS_RESET: 594 { 595 struct ccb_hdr *ccbh; 596 597 softc = (struct cd_softc *)periph->softc; 598 /* 599 * Don't fail on the expected unit attention 600 * that will occur. 601 */ 602 softc->flags |= CD_FLAG_RETRY_UA; 603 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 604 ccbh->ccb_state |= CD_CCB_RETRY_UA; 605 /* FALLTHROUGH */ 606 } 607 default: 608 cam_periph_async(periph, code, path, arg); 609 break; 610 } 611} 612 613static void 614cdsysctlinit(void *context, int pending) 615{ 616 struct cam_periph *periph; 617 struct cd_softc *softc; 618 char tmpstr[80], tmpstr2[80]; 619 620 periph = (struct cam_periph *)context; 621 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 622 return; 623 624 softc = (struct cd_softc *)periph->softc; 625 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 626 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 627 628 sysctl_ctx_init(&softc->sysctl_ctx); 629 softc->flags |= CD_FLAG_SCTX_INIT; 630 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 631 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 632 tmpstr2, CTLFLAG_RD, 0, tmpstr); 633 634 if (softc->sysctl_tree == NULL) { 635 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 636 cam_periph_release(periph); 637 return; 638 } 639 640 /* 641 * Now register the sysctl handler, so the user can the value on 642 * the fly. 643 */ 644 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 645 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 646 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 647 "Minimum CDB size"); 648 649 cam_periph_release(periph); 650} 651 652/* 653 * We have a handler function for this so we can check the values when the 654 * user sets them, instead of every time we look at them. 655 */ 656static int 657cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 658{ 659 int error, value; 660 661 value = *(int *)arg1; 662 663 error = sysctl_handle_int(oidp, &value, 0, req); 664 665 if ((error != 0) 666 || (req->newptr == NULL)) 667 return (error); 668 669 /* 670 * The only real values we can have here are 6 or 10. I don't 671 * really forsee having 12 be an option at any time in the future. 672 * So if the user sets something less than or equal to 6, we'll set 673 * it to 6. If he sets something greater than 6, we'll set it to 10. 674 * 675 * I suppose we could just return an error here for the wrong values, 676 * but I don't think it's necessary to do so, as long as we can 677 * determine the user's intent without too much trouble. 678 */ 679 if (value < 6) 680 value = 6; 681 else if (value > 6) 682 value = 10; 683 684 *(int *)arg1 = value; 685 686 return (0); 687} 688 689static cam_status 690cdregister(struct cam_periph *periph, void *arg) 691{ 692 struct cd_softc *softc; 693 struct ccb_pathinq cpi; 694 struct ccb_getdev *cgd; 695 char tmpstr[80]; 696 caddr_t match; 697 698 cgd = (struct ccb_getdev *)arg; 699 if (cgd == NULL) { 700 printf("cdregister: no getdev CCB, can't register device\n"); 701 return(CAM_REQ_CMP_ERR); 702 } 703 704 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 705 M_NOWAIT | M_ZERO); 706 if (softc == NULL) { 707 printf("cdregister: Unable to probe new device. " 708 "Unable to allocate softc\n"); 709 return(CAM_REQ_CMP_ERR); 710 } 711 712 LIST_INIT(&softc->pending_ccbs); 713 STAILQ_INIT(&softc->mode_queue); 714 softc->state = CD_STATE_PROBE; 715 bioq_init(&softc->bio_queue); 716 if (SID_IS_REMOVABLE(&cgd->inq_data)) 717 softc->flags |= CD_FLAG_DISC_REMOVABLE; 718 719 periph->softc = softc; 720 softc->periph = periph; 721 722 /* 723 * See if this device has any quirks. 724 */ 725 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 726 (caddr_t)cd_quirk_table, 727 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 728 sizeof(*cd_quirk_table), scsi_inquiry_match); 729 730 if (match != NULL) 731 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 732 else 733 softc->quirks = CD_Q_NONE; 734 735 /* Check if the SIM does not want 6 byte commands */ 736 bzero(&cpi, sizeof(cpi)); 737 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 738 cpi.ccb_h.func_code = XPT_PATH_INQ; 739 xpt_action((union ccb *)&cpi); 740 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 741 softc->quirks |= CD_Q_10_BYTE_ONLY; 742 743 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 744 745 /* The default is 6 byte commands, unless quirked otherwise */ 746 if (softc->quirks & CD_Q_10_BYTE_ONLY) 747 softc->minimum_command_size = 10; 748 else 749 softc->minimum_command_size = 6; 750 751 /* 752 * Refcount and block open attempts until we are setup 753 * Can't block 754 */ 755 (void)cam_periph_hold(periph, PRIBIO); 756 cam_periph_unlock(periph); 757 /* 758 * Load the user's default, if any. 759 */ 760 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 761 periph->unit_number); 762 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 763 764 /* 6 and 10 are the only permissible values here. */ 765 if (softc->minimum_command_size < 6) 766 softc->minimum_command_size = 6; 767 else if (softc->minimum_command_size > 6) 768 softc->minimum_command_size = 10; 769 770 /* 771 * We need to register the statistics structure for this device, 772 * but we don't have the blocksize yet for it. So, we register 773 * the structure and indicate that we don't have the blocksize 774 * yet. Unlike other SCSI peripheral drivers, we explicitly set 775 * the device type here to be CDROM, rather than just ORing in 776 * the device type. This is because this driver can attach to either 777 * CDROM or WORM devices, and we want this peripheral driver to 778 * show up in the devstat list as a CD peripheral driver, not a 779 * WORM peripheral driver. WORM drives will also have the WORM 780 * driver attached to them. 781 */ 782 softc->disk = disk_alloc(); 783 softc->disk->d_devstat = devstat_new_entry("cd", 784 periph->unit_number, 0, 785 DEVSTAT_BS_UNAVAILABLE, 786 DEVSTAT_TYPE_CDROM | 787 XPORT_DEVSTAT_TYPE(cpi.transport), 788 DEVSTAT_PRIORITY_CD); 789 softc->disk->d_open = cdopen; 790 softc->disk->d_close = cdclose; 791 softc->disk->d_strategy = cdstrategy; 792 softc->disk->d_gone = cddiskgonecb; 793 softc->disk->d_ioctl = cdioctl; 794 softc->disk->d_name = "cd"; 795 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 796 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 797 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 798 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 799 cgd->inq_data.product, sizeof(cgd->inq_data.product), 800 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 801 softc->disk->d_unit = periph->unit_number; 802 softc->disk->d_drv1 = periph; 803 if (cpi.maxio == 0) 804 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 805 else if (cpi.maxio > MAXPHYS) 806 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 807 else 808 softc->disk->d_maxsize = cpi.maxio; 809 softc->disk->d_flags = 0; 810 softc->disk->d_hba_vendor = cpi.hba_vendor; 811 softc->disk->d_hba_device = cpi.hba_device; 812 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 813 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 814 815 /* 816 * Acquire a reference to the periph before we register with GEOM. 817 * We'll release this reference once GEOM calls us back (via 818 * dadiskgonecb()) telling us that our provider has been freed. 819 */ 820 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 821 xpt_print(periph->path, "%s: lost periph during " 822 "registration!\n", __func__); 823 cam_periph_lock(periph); 824 return (CAM_REQ_CMP_ERR); 825 } 826 827 disk_create(softc->disk, DISK_VERSION); 828 cam_periph_lock(periph); 829 830 /* 831 * Add an async callback so that we get 832 * notified if this device goes away. 833 */ 834 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 835 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 836 837 /* 838 * If the target lun is greater than 0, we most likely have a CD 839 * changer device. Check the quirk entries as well, though, just 840 * in case someone has a CD tower with one lun per drive or 841 * something like that. Also, if we know up front that a 842 * particular device is a changer, we can mark it as such starting 843 * with lun 0, instead of lun 1. It shouldn't be necessary to have 844 * a quirk entry to define something as a changer, however. 845 */ 846 if (((cgd->ccb_h.target_lun > 0) 847 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 848 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 849 struct cdchanger *nchanger; 850 struct cam_periph *nperiph; 851 struct cam_path *path; 852 cam_status status; 853 int found; 854 855 /* Set the changer flag in the current device's softc */ 856 softc->flags |= CD_FLAG_CHANGER; 857 858 /* 859 * Now, look around for an existing changer device with the 860 * same path and target ID as the current device. 861 */ 862 mtx_lock(&changerq_mtx); 863 for (found = 0, 864 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 865 nchanger != NULL; 866 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 867 if ((nchanger->path_id == cgd->ccb_h.path_id) 868 && (nchanger->target_id == cgd->ccb_h.target_id)) { 869 found = 1; 870 break; 871 } 872 } 873 mtx_unlock(&changerq_mtx); 874 875 /* 876 * If we found a matching entry, just add this device to 877 * the list of devices on this changer. 878 */ 879 if (found == 1) { 880 struct chdevlist *chlunhead; 881 882 chlunhead = &nchanger->chluns; 883 884 /* 885 * XXX KDM look at consolidating this code with the 886 * code below in a separate function. 887 */ 888 889 /* 890 * Create a path with lun id 0, and see if we can 891 * find a matching device 892 */ 893 status = xpt_create_path(&path, /*periph*/ periph, 894 cgd->ccb_h.path_id, 895 cgd->ccb_h.target_id, 0); 896 897 if ((status == CAM_REQ_CMP) 898 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 899 struct cd_softc *nsoftc; 900 901 nsoftc = (struct cd_softc *)nperiph->softc; 902 903 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 904 nsoftc->flags |= CD_FLAG_CHANGER; 905 nchanger->num_devices++; 906 if (camq_resize(&nchanger->devq, 907 nchanger->num_devices)!=CAM_REQ_CMP){ 908 printf("cdregister: " 909 "camq_resize " 910 "failed, changer " 911 "support may " 912 "be messed up\n"); 913 } 914 nsoftc->changer = nchanger; 915 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 916 917 STAILQ_INSERT_TAIL(&nchanger->chluns, 918 nsoftc,changer_links); 919 } 920 xpt_free_path(path); 921 } else if (status == CAM_REQ_CMP) 922 xpt_free_path(path); 923 else { 924 printf("cdregister: unable to allocate path\n" 925 "cdregister: changer support may be " 926 "broken\n"); 927 } 928 929 nchanger->num_devices++; 930 931 softc->changer = nchanger; 932 softc->pinfo.index = CAM_UNQUEUED_INDEX; 933 934 if (camq_resize(&nchanger->devq, 935 nchanger->num_devices) != CAM_REQ_CMP) { 936 printf("cdregister: camq_resize " 937 "failed, changer support may " 938 "be messed up\n"); 939 } 940 941 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 942 } 943 /* 944 * In this case, we don't already have an entry for this 945 * particular changer, so we need to create one, add it to 946 * the queue, and queue this device on the list for this 947 * changer. Before we queue this device, however, we need 948 * to search for lun id 0 on this target, and add it to the 949 * queue first, if it exists. (and if it hasn't already 950 * been marked as part of the changer.) 951 */ 952 else { 953 nchanger = malloc(sizeof(struct cdchanger), 954 M_DEVBUF, M_NOWAIT | M_ZERO); 955 if (nchanger == NULL) { 956 softc->flags &= ~CD_FLAG_CHANGER; 957 printf("cdregister: unable to malloc " 958 "changer structure\ncdregister: " 959 "changer support disabled\n"); 960 961 /* 962 * Yes, gotos can be gross but in this case 963 * I think it's justified.. 964 */ 965 goto cdregisterexit; 966 } 967 if (camq_init(&nchanger->devq, 1) != 0) { 968 softc->flags &= ~CD_FLAG_CHANGER; 969 printf("cdregister: changer support " 970 "disabled\n"); 971 goto cdregisterexit; 972 } 973 974 nchanger->path_id = cgd->ccb_h.path_id; 975 nchanger->target_id = cgd->ccb_h.target_id; 976 977 /* this is superfluous, but it makes things clearer */ 978 nchanger->num_devices = 0; 979 980 STAILQ_INIT(&nchanger->chluns); 981 982 callout_init_mtx(&nchanger->long_handle, 983 periph->sim->mtx, 0); 984 callout_init_mtx(&nchanger->short_handle, 985 periph->sim->mtx, 0); 986 987 mtx_lock(&changerq_mtx); 988 num_changers++; 989 STAILQ_INSERT_TAIL(&changerq, nchanger, 990 changer_links); 991 mtx_unlock(&changerq_mtx); 992 993 /* 994 * Create a path with lun id 0, and see if we can 995 * find a matching device 996 */ 997 status = xpt_create_path(&path, /*periph*/ periph, 998 cgd->ccb_h.path_id, 999 cgd->ccb_h.target_id, 0); 1000 1001 /* 1002 * If we were able to allocate the path, and if we 1003 * find a matching device and it isn't already 1004 * marked as part of a changer, then we add it to 1005 * the current changer. 1006 */ 1007 if ((status == CAM_REQ_CMP) 1008 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1009 && ((((struct cd_softc *)periph->softc)->flags & 1010 CD_FLAG_CHANGER) == 0)) { 1011 struct cd_softc *nsoftc; 1012 1013 nsoftc = (struct cd_softc *)nperiph->softc; 1014 1015 nsoftc->flags |= CD_FLAG_CHANGER; 1016 nchanger->num_devices++; 1017 if (camq_resize(&nchanger->devq, 1018 nchanger->num_devices) != CAM_REQ_CMP) { 1019 printf("cdregister: camq_resize " 1020 "failed, changer support may " 1021 "be messed up\n"); 1022 } 1023 nsoftc->changer = nchanger; 1024 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1025 1026 STAILQ_INSERT_TAIL(&nchanger->chluns, 1027 nsoftc, changer_links); 1028 xpt_free_path(path); 1029 } else if (status == CAM_REQ_CMP) 1030 xpt_free_path(path); 1031 else { 1032 printf("cdregister: unable to allocate path\n" 1033 "cdregister: changer support may be " 1034 "broken\n"); 1035 } 1036 1037 softc->changer = nchanger; 1038 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1039 nchanger->num_devices++; 1040 if (camq_resize(&nchanger->devq, 1041 nchanger->num_devices) != CAM_REQ_CMP) { 1042 printf("cdregister: camq_resize " 1043 "failed, changer support may " 1044 "be messed up\n"); 1045 } 1046 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1047 changer_links); 1048 } 1049 } 1050 1051 /* 1052 * Schedule a periodic media polling events. 1053 */ 1054 callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0); 1055 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1056 (softc->flags & CD_FLAG_CHANGER) == 0 && 1057 (cgd->inq_flags & SID_AEN) == 0 && 1058 cd_poll_period != 0) 1059 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1060 cdmediapoll, periph); 1061 1062cdregisterexit: 1063 1064 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1065 xpt_schedule(periph, CAM_PRIORITY_DEV); 1066 else 1067 cdschedule(periph, CAM_PRIORITY_DEV); 1068 1069 return(CAM_REQ_CMP); 1070} 1071 1072static int 1073cdopen(struct disk *dp) 1074{ 1075 struct cam_periph *periph; 1076 struct cd_softc *softc; 1077 int error; 1078 1079 periph = (struct cam_periph *)dp->d_drv1; 1080 softc = (struct cd_softc *)periph->softc; 1081 1082 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1083 return(ENXIO); 1084 1085 cam_periph_lock(periph); 1086 1087 if (softc->flags & CD_FLAG_INVALID) { 1088 cam_periph_release_locked(periph); 1089 cam_periph_unlock(periph); 1090 return(ENXIO); 1091 } 1092 1093 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1094 cam_periph_release_locked(periph); 1095 cam_periph_unlock(periph); 1096 return (error); 1097 } 1098 1099 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1100 ("cdopen\n")); 1101 1102 /* 1103 * Check for media, and set the appropriate flags. We don't bail 1104 * if we don't have media, but then we don't allow anything but the 1105 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1106 */ 1107 cdcheckmedia(periph); 1108 1109 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1110 cam_periph_unhold(periph); 1111 1112 cam_periph_unlock(periph); 1113 1114 return (0); 1115} 1116 1117static int 1118cdclose(struct disk *dp) 1119{ 1120 struct cam_periph *periph; 1121 struct cd_softc *softc; 1122 1123 periph = (struct cam_periph *)dp->d_drv1; 1124 softc = (struct cd_softc *)periph->softc; 1125 1126 cam_periph_lock(periph); 1127 if (cam_periph_hold(periph, PRIBIO) != 0) { 1128 cam_periph_unlock(periph); 1129 cam_periph_release(periph); 1130 return (0); 1131 } 1132 1133 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1134 ("cdclose\n")); 1135 1136 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1137 cdprevent(periph, PR_ALLOW); 1138 1139 /* 1140 * Since we're closing this CD, mark the blocksize as unavailable. 1141 * It will be marked as available when the CD is opened again. 1142 */ 1143 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1144 1145 /* 1146 * We'll check the media and toc again at the next open(). 1147 */ 1148 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1149 1150 cam_periph_unhold(periph); 1151 cam_periph_release_locked(periph); 1152 cam_periph_unlock(periph); 1153 1154 return (0); 1155} 1156 1157static void 1158cdshorttimeout(void *arg) 1159{ 1160 struct cdchanger *changer; 1161 1162 changer = (struct cdchanger *)arg; 1163 1164 /* Always clear the short timeout flag, since that's what we're in */ 1165 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1166 1167 /* 1168 * Check to see if there is any more pending or outstanding I/O for 1169 * this device. If not, move it out of the active slot. 1170 */ 1171 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1172 && (changer->cur_device->outstanding_cmds == 0)) { 1173 changer->flags |= CHANGER_MANUAL_CALL; 1174 cdrunchangerqueue(changer); 1175 } 1176} 1177 1178/* 1179 * This is a wrapper for xpt_schedule. It only applies to changers. 1180 */ 1181static void 1182cdschedule(struct cam_periph *periph, int priority) 1183{ 1184 struct cd_softc *softc; 1185 1186 softc = (struct cd_softc *)periph->softc; 1187 1188 /* 1189 * If this device isn't currently queued, and if it isn't 1190 * the active device, then we queue this device and run the 1191 * changer queue if there is no timeout scheduled to do it. 1192 * If this device is the active device, just schedule it 1193 * to run again. If this device is queued, there should be 1194 * a timeout in place already that will make sure it runs. 1195 */ 1196 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1197 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1198 /* 1199 * We don't do anything with the priority here. 1200 * This is strictly a fifo queue. 1201 */ 1202 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1203 softc->pinfo.generation = ++softc->changer->devq.generation; 1204 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1205 1206 /* 1207 * Since we just put a device in the changer queue, 1208 * check and see if there is a timeout scheduled for 1209 * this changer. If so, let the timeout handle 1210 * switching this device into the active slot. If 1211 * not, manually call the timeout routine to 1212 * bootstrap things. 1213 */ 1214 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1215 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1216 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1217 softc->changer->flags |= CHANGER_MANUAL_CALL; 1218 cdrunchangerqueue(softc->changer); 1219 } 1220 } else if ((softc->flags & CD_FLAG_ACTIVE) 1221 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1222 xpt_schedule(periph, priority); 1223} 1224 1225static void 1226cdrunchangerqueue(void *arg) 1227{ 1228 struct cd_softc *softc; 1229 struct cdchanger *changer; 1230 int called_from_timeout; 1231 1232 changer = (struct cdchanger *)arg; 1233 1234 /* 1235 * If we have NOT been called from cdstrategy() or cddone(), and 1236 * instead from a timeout routine, go ahead and clear the 1237 * timeout flag. 1238 */ 1239 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1240 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1241 called_from_timeout = 1; 1242 } else 1243 called_from_timeout = 0; 1244 1245 /* Always clear the manual call flag */ 1246 changer->flags &= ~CHANGER_MANUAL_CALL; 1247 1248 /* nothing to do if the queue is empty */ 1249 if (changer->devq.entries <= 0) { 1250 return; 1251 } 1252 1253 /* 1254 * If the changer queue is frozen, that means we have an active 1255 * device. 1256 */ 1257 if (changer->devq.qfrozen_cnt > 0) { 1258 1259 /* 1260 * We always need to reset the frozen count and clear the 1261 * active flag. 1262 */ 1263 changer->devq.qfrozen_cnt--; 1264 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1265 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1266 1267 if (changer->cur_device->outstanding_cmds > 0) { 1268 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1269 changer->cur_device->bufs_left = 1270 changer->cur_device->outstanding_cmds; 1271 if (called_from_timeout) { 1272 callout_reset(&changer->long_handle, 1273 changer_max_busy_seconds * hz, 1274 cdrunchangerqueue, changer); 1275 changer->flags |= CHANGER_TIMEOUT_SCHED; 1276 } 1277 return; 1278 } 1279 1280 /* 1281 * Check to see whether the current device has any I/O left 1282 * to do. If so, requeue it at the end of the queue. If 1283 * not, there is no need to requeue it. 1284 */ 1285 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1286 1287 changer->cur_device->pinfo.generation = 1288 ++changer->devq.generation; 1289 camq_insert(&changer->devq, 1290 (cam_pinfo *)changer->cur_device); 1291 } 1292 } 1293 1294 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1295 1296 changer->cur_device = softc; 1297 1298 changer->devq.qfrozen_cnt++; 1299 softc->flags |= CD_FLAG_ACTIVE; 1300 1301 /* Just in case this device is waiting */ 1302 wakeup(&softc->changer); 1303 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1304 1305 /* 1306 * Get rid of any pending timeouts, and set a flag to schedule new 1307 * ones so this device gets its full time quantum. 1308 */ 1309 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1310 callout_stop(&changer->long_handle); 1311 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1312 } 1313 1314 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1315 callout_stop(&changer->short_handle); 1316 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1317 } 1318 1319 /* 1320 * We need to schedule timeouts, but we only do this after the 1321 * first transaction has completed. This eliminates the changer 1322 * switch time. 1323 */ 1324 changer->flags |= CHANGER_NEED_TIMEOUT; 1325} 1326 1327static void 1328cdchangerschedule(struct cd_softc *softc) 1329{ 1330 struct cdchanger *changer; 1331 1332 changer = softc->changer; 1333 1334 /* 1335 * If this is a changer, and this is the current device, 1336 * and this device has at least the minimum time quantum to 1337 * run, see if we can switch it out. 1338 */ 1339 if ((softc->flags & CD_FLAG_ACTIVE) 1340 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1341 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1342 /* 1343 * We try three things here. The first is that we 1344 * check to see whether the schedule on completion 1345 * flag is set. If it is, we decrement the number 1346 * of buffers left, and if it's zero, we reschedule. 1347 * Next, we check to see whether the pending buffer 1348 * queue is empty and whether there are no 1349 * outstanding transactions. If so, we reschedule. 1350 * Next, we see if the pending buffer queue is empty. 1351 * If it is, we set the number of buffers left to 1352 * the current active buffer count and set the 1353 * schedule on complete flag. 1354 */ 1355 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1356 if (--softc->bufs_left == 0) { 1357 softc->changer->flags |= 1358 CHANGER_MANUAL_CALL; 1359 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1360 cdrunchangerqueue(softc->changer); 1361 } 1362 } else if ((bioq_first(&softc->bio_queue) == NULL) 1363 && (softc->outstanding_cmds == 0)) { 1364 softc->changer->flags |= CHANGER_MANUAL_CALL; 1365 cdrunchangerqueue(softc->changer); 1366 } 1367 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1368 && (softc->flags & CD_FLAG_ACTIVE)) { 1369 1370 /* 1371 * Now that the first transaction to this 1372 * particular device has completed, we can go ahead 1373 * and schedule our timeouts. 1374 */ 1375 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1376 callout_reset(&changer->long_handle, 1377 changer_max_busy_seconds * hz, 1378 cdrunchangerqueue, changer); 1379 changer->flags |= CHANGER_TIMEOUT_SCHED; 1380 } else 1381 printf("cdchangerschedule: already have a long" 1382 " timeout!\n"); 1383 1384 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1385 callout_reset(&changer->short_handle, 1386 changer_min_busy_seconds * hz, 1387 cdshorttimeout, changer); 1388 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1389 } else 1390 printf("cdchangerschedule: already have a short " 1391 "timeout!\n"); 1392 1393 /* 1394 * We just scheduled timeouts, no need to schedule 1395 * more. 1396 */ 1397 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1398 1399 } 1400} 1401 1402static int 1403cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1404 u_int32_t cam_flags, 1405 u_int32_t sense_flags), 1406 u_int32_t cam_flags, u_int32_t sense_flags) 1407{ 1408 struct cd_softc *softc; 1409 struct cam_periph *periph; 1410 int error; 1411 1412 periph = xpt_path_periph(ccb->ccb_h.path); 1413 softc = (struct cd_softc *)periph->softc; 1414 1415 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1416 softc->disk->d_devstat); 1417 1418 if (softc->flags & CD_FLAG_CHANGER) 1419 cdchangerschedule(softc); 1420 1421 return(error); 1422} 1423 1424static union ccb * 1425cdgetccb(struct cam_periph *periph, u_int32_t priority) 1426{ 1427 struct cd_softc *softc; 1428 1429 softc = (struct cd_softc *)periph->softc; 1430 1431 if (softc->flags & CD_FLAG_CHANGER) { 1432 /* 1433 * This should work the first time this device is woken up, 1434 * but just in case it doesn't, we use a while loop. 1435 */ 1436 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1437 /* 1438 * If this changer isn't already queued, queue it up. 1439 */ 1440 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1441 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1442 softc->pinfo.generation = 1443 ++softc->changer->devq.generation; 1444 camq_insert(&softc->changer->devq, 1445 (cam_pinfo *)softc); 1446 } 1447 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1448 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1449 && ((softc->changer->flags 1450 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1451 softc->changer->flags |= CHANGER_MANUAL_CALL; 1452 cdrunchangerqueue(softc->changer); 1453 } else 1454 cam_periph_sleep(periph, &softc->changer, 1455 PRIBIO, "cgticb", 0); 1456 } 1457 } 1458 return(cam_periph_getccb(periph, priority)); 1459} 1460 1461 1462/* 1463 * Actually translate the requested transfer into one the physical driver 1464 * can understand. The transfer is described by a buf and will include 1465 * only one physical transfer. 1466 */ 1467static void 1468cdstrategy(struct bio *bp) 1469{ 1470 struct cam_periph *periph; 1471 struct cd_softc *softc; 1472 1473 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1474 cam_periph_lock(periph); 1475 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1476 ("cdstrategy(%p)\n", bp)); 1477 1478 softc = (struct cd_softc *)periph->softc; 1479 1480 /* 1481 * If the device has been made invalid, error out 1482 */ 1483 if ((softc->flags & CD_FLAG_INVALID)) { 1484 cam_periph_unlock(periph); 1485 biofinish(bp, NULL, ENXIO); 1486 return; 1487 } 1488 1489 /* 1490 * If we don't have valid media, look for it before trying to 1491 * schedule the I/O. 1492 */ 1493 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1494 int error; 1495 1496 error = cdcheckmedia(periph); 1497 if (error != 0) { 1498 cam_periph_unlock(periph); 1499 biofinish(bp, NULL, error); 1500 return; 1501 } 1502 } 1503 1504 /* 1505 * Place it in the queue of disk activities for this disk 1506 */ 1507 bioq_disksort(&softc->bio_queue, bp); 1508 1509 /* 1510 * Schedule ourselves for performing the work. We do things 1511 * differently for changers. 1512 */ 1513 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1514 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1515 else 1516 cdschedule(periph, CAM_PRIORITY_NORMAL); 1517 1518 cam_periph_unlock(periph); 1519 return; 1520} 1521 1522static void 1523cdstart(struct cam_periph *periph, union ccb *start_ccb) 1524{ 1525 struct cd_softc *softc; 1526 struct bio *bp; 1527 struct ccb_scsiio *csio; 1528 struct scsi_read_capacity_data *rcap; 1529 1530 softc = (struct cd_softc *)periph->softc; 1531 1532 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1533 1534 switch (softc->state) { 1535 case CD_STATE_NORMAL: 1536 { 1537 bp = bioq_first(&softc->bio_queue); 1538 if (periph->immediate_priority <= periph->pinfo.priority) { 1539 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1540 1541 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1542 periph_links.sle); 1543 periph->immediate_priority = CAM_PRIORITY_NONE; 1544 wakeup(&periph->ccb_list); 1545 } else if (bp == NULL) { 1546 if (softc->tur) { 1547 softc->tur = 0; 1548 csio = &start_ccb->csio; 1549 scsi_test_unit_ready(csio, 1550 /*retries*/ cd_retry_count, 1551 cddone, 1552 MSG_SIMPLE_Q_TAG, 1553 SSD_FULL_SIZE, 1554 cd_timeout); 1555 start_ccb->ccb_h.ccb_bp = NULL; 1556 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1557 xpt_action(start_ccb); 1558 } else 1559 xpt_release_ccb(start_ccb); 1560 } else { 1561 if (softc->tur) { 1562 softc->tur = 0; 1563 cam_periph_release_locked(periph); 1564 } 1565 bioq_remove(&softc->bio_queue, bp); 1566 1567 scsi_read_write(&start_ccb->csio, 1568 /*retries*/ cd_retry_count, 1569 /* cbfcnp */ cddone, 1570 MSG_SIMPLE_Q_TAG, 1571 /* read */bp->bio_cmd == BIO_READ ? 1572 SCSI_RW_READ : SCSI_RW_WRITE, 1573 /* byte2 */ 0, 1574 /* minimum_cmd_size */ 10, 1575 /* lba */ bp->bio_offset / 1576 softc->params.blksize, 1577 bp->bio_bcount / softc->params.blksize, 1578 /* data_ptr */ bp->bio_data, 1579 /* dxfer_len */ bp->bio_bcount, 1580 /* sense_len */ cd_retry_count ? 1581 SSD_FULL_SIZE : SF_NO_PRINT, 1582 /* timeout */ cd_timeout); 1583 /* Use READ CD command for audio tracks. */ 1584 if (softc->params.blksize == 2352) { 1585 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1586 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1587 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1588 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1589 start_ccb->csio.cdb_len = 12; 1590 } 1591 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1592 1593 1594 LIST_INSERT_HEAD(&softc->pending_ccbs, 1595 &start_ccb->ccb_h, periph_links.le); 1596 softc->outstanding_cmds++; 1597 1598 /* We expect a unit attention from this device */ 1599 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1600 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1601 softc->flags &= ~CD_FLAG_RETRY_UA; 1602 } 1603 1604 start_ccb->ccb_h.ccb_bp = bp; 1605 bp = bioq_first(&softc->bio_queue); 1606 1607 xpt_action(start_ccb); 1608 } 1609 if (bp != NULL || softc->tur || 1610 periph->immediate_priority != CAM_PRIORITY_NONE) { 1611 /* Have more work to do, so ensure we stay scheduled */ 1612 xpt_schedule(periph, min(CAM_PRIORITY_NORMAL, 1613 periph->immediate_priority)); 1614 } 1615 break; 1616 } 1617 case CD_STATE_PROBE: 1618 { 1619 1620 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1621 M_SCSICD, M_NOWAIT | M_ZERO); 1622 if (rcap == NULL) { 1623 xpt_print(periph->path, 1624 "cdstart: Couldn't malloc read_capacity data\n"); 1625 /* cd_free_periph??? */ 1626 break; 1627 } 1628 csio = &start_ccb->csio; 1629 scsi_read_capacity(csio, 1630 /*retries*/ cd_retry_count, 1631 cddone, 1632 MSG_SIMPLE_Q_TAG, 1633 rcap, 1634 SSD_FULL_SIZE, 1635 /*timeout*/20000); 1636 start_ccb->ccb_h.ccb_bp = NULL; 1637 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1638 xpt_action(start_ccb); 1639 break; 1640 } 1641 } 1642} 1643 1644static void 1645cddone(struct cam_periph *periph, union ccb *done_ccb) 1646{ 1647 struct cd_softc *softc; 1648 struct ccb_scsiio *csio; 1649 1650 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1651 1652 softc = (struct cd_softc *)periph->softc; 1653 csio = &done_ccb->csio; 1654 1655 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1656 case CD_CCB_BUFFER_IO: 1657 { 1658 struct bio *bp; 1659 int error; 1660 1661 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1662 error = 0; 1663 1664 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1665 int sf; 1666 1667 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1668 sf = SF_RETRY_UA; 1669 else 1670 sf = 0; 1671 1672 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1673 if (error == ERESTART) { 1674 /* 1675 * A retry was scheuled, so 1676 * just return. 1677 */ 1678 return; 1679 } 1680 } 1681 1682 if (error != 0) { 1683 xpt_print(periph->path, 1684 "cddone: got error %#x back\n", error); 1685 bioq_flush(&softc->bio_queue, NULL, EIO); 1686 bp->bio_resid = bp->bio_bcount; 1687 bp->bio_error = error; 1688 bp->bio_flags |= BIO_ERROR; 1689 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1690 cam_release_devq(done_ccb->ccb_h.path, 1691 /*relsim_flags*/0, 1692 /*reduction*/0, 1693 /*timeout*/0, 1694 /*getcount_only*/0); 1695 1696 } else { 1697 bp->bio_resid = csio->resid; 1698 bp->bio_error = 0; 1699 if (bp->bio_resid != 0) { 1700 /* 1701 * Short transfer ??? 1702 * XXX: not sure this is correct for partial 1703 * transfers at EOM 1704 */ 1705 bp->bio_flags |= BIO_ERROR; 1706 } 1707 } 1708 1709 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1710 softc->outstanding_cmds--; 1711 1712 if (softc->flags & CD_FLAG_CHANGER) 1713 cdchangerschedule(softc); 1714 1715 biofinish(bp, NULL, 0); 1716 break; 1717 } 1718 case CD_CCB_PROBE: 1719 { 1720 struct scsi_read_capacity_data *rdcap; 1721 char announce_buf[120]; /* 1722 * Currently (9/30/97) the 1723 * longest possible announce 1724 * buffer is 108 bytes, for the 1725 * first error case below. 1726 * That is 39 bytes for the 1727 * basic string, 16 bytes for the 1728 * biggest sense key (hardware 1729 * error), 52 bytes for the 1730 * text of the largest sense 1731 * qualifier valid for a CDROM, 1732 * (0x72, 0x03 or 0x04, 1733 * 0x03), and one byte for the 1734 * null terminating character. 1735 * To allow for longer strings, 1736 * the announce buffer is 120 1737 * bytes. 1738 */ 1739 struct cd_params *cdp; 1740 int error; 1741 1742 cdp = &softc->params; 1743 1744 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1745 1746 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1747 cdp->blksize = scsi_4btoul (rdcap->length); 1748 1749 /* 1750 * Retry any UNIT ATTENTION type errors. They 1751 * are expected at boot. 1752 */ 1753 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1754 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1755 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1756 1757 snprintf(announce_buf, sizeof(announce_buf), 1758 "cd present [%lu x %lu byte records]", 1759 cdp->disksize, (u_long)cdp->blksize); 1760 1761 } else { 1762 if (error == ERESTART) { 1763 /* 1764 * A retry was scheuled, so 1765 * just return. 1766 */ 1767 return; 1768 } else { 1769 int asc, ascq; 1770 int sense_key, error_code; 1771 int have_sense; 1772 cam_status status; 1773 struct ccb_getdev cgd; 1774 1775 /* Don't wedge this device's queue */ 1776 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1777 cam_release_devq(done_ccb->ccb_h.path, 1778 /*relsim_flags*/0, 1779 /*reduction*/0, 1780 /*timeout*/0, 1781 /*getcount_only*/0); 1782 1783 status = done_ccb->ccb_h.status; 1784 1785 xpt_setup_ccb(&cgd.ccb_h, 1786 done_ccb->ccb_h.path, 1787 CAM_PRIORITY_NORMAL); 1788 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1789 xpt_action((union ccb *)&cgd); 1790 1791 if (scsi_extract_sense_ccb(done_ccb, 1792 &error_code, &sense_key, &asc, &ascq)) 1793 have_sense = TRUE; 1794 else 1795 have_sense = FALSE; 1796 1797 /* 1798 * Attach to anything that claims to be a 1799 * CDROM or WORM device, as long as it 1800 * doesn't return a "Logical unit not 1801 * supported" (0x25) error. 1802 */ 1803 if ((have_sense) && (asc != 0x25) 1804 && (error_code == SSD_CURRENT_ERROR)) { 1805 const char *sense_key_desc; 1806 const char *asc_desc; 1807 1808 scsi_sense_desc(sense_key, asc, ascq, 1809 &cgd.inq_data, 1810 &sense_key_desc, 1811 &asc_desc); 1812 snprintf(announce_buf, 1813 sizeof(announce_buf), 1814 "Attempt to query device " 1815 "size failed: %s, %s", 1816 sense_key_desc, 1817 asc_desc); 1818 } else if ((have_sense == 0) 1819 && ((status & CAM_STATUS_MASK) == 1820 CAM_SCSI_STATUS_ERROR) 1821 && (csio->scsi_status == 1822 SCSI_STATUS_BUSY)) { 1823 snprintf(announce_buf, 1824 sizeof(announce_buf), 1825 "Attempt to query device " 1826 "size failed: SCSI Status: %s", 1827 scsi_status_string(csio)); 1828 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1829 /* 1830 * We only print out an error for 1831 * CDROM type devices. For WORM 1832 * devices, we don't print out an 1833 * error since a few WORM devices 1834 * don't support CDROM commands. 1835 * If we have sense information, go 1836 * ahead and print it out. 1837 * Otherwise, just say that we 1838 * couldn't attach. 1839 */ 1840 1841 /* 1842 * Just print out the error, not 1843 * the full probe message, when we 1844 * don't attach. 1845 */ 1846 if (have_sense) 1847 scsi_sense_print( 1848 &done_ccb->csio); 1849 else { 1850 xpt_print(periph->path, 1851 "got CAM status %#x\n", 1852 done_ccb->ccb_h.status); 1853 } 1854 xpt_print(periph->path, "fatal error, " 1855 "failed to attach to device\n"); 1856 /* 1857 * Invalidate this peripheral. 1858 */ 1859 cam_periph_invalidate(periph); 1860 1861 announce_buf[0] = '\0'; 1862 } else { 1863 1864 /* 1865 * Invalidate this peripheral. 1866 */ 1867 cam_periph_invalidate(periph); 1868 announce_buf[0] = '\0'; 1869 } 1870 } 1871 } 1872 free(rdcap, M_SCSICD); 1873 if (announce_buf[0] != '\0') { 1874 xpt_announce_periph(periph, announce_buf); 1875 xpt_announce_quirks(periph, softc->quirks, 1876 CD_Q_BIT_STRING); 1877 if (softc->flags & CD_FLAG_CHANGER) 1878 cdchangerschedule(softc); 1879 /* 1880 * Create our sysctl variables, now that we know 1881 * we have successfully attached. 1882 */ 1883 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1884 } 1885 softc->state = CD_STATE_NORMAL; 1886 /* 1887 * Since our peripheral may be invalidated by an error 1888 * above or an external event, we must release our CCB 1889 * before releasing the probe lock on the peripheral. 1890 * The peripheral will only go away once the last lock 1891 * is removed, and we need it around for the CCB release 1892 * operation. 1893 */ 1894 xpt_release_ccb(done_ccb); 1895 cam_periph_unhold(periph); 1896 return; 1897 } 1898 case CD_CCB_WAITING: 1899 { 1900 /* Caller will release the CCB */ 1901 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1902 ("trying to wakeup ccbwait\n")); 1903 1904 wakeup(&done_ccb->ccb_h.cbfcnp); 1905 return; 1906 } 1907 case CD_CCB_TUR: 1908 { 1909 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1910 1911 if (cderror(done_ccb, CAM_RETRY_SELTO, 1912 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1913 ERESTART) 1914 return; 1915 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1916 cam_release_devq(done_ccb->ccb_h.path, 1917 /*relsim_flags*/0, 1918 /*reduction*/0, 1919 /*timeout*/0, 1920 /*getcount_only*/0); 1921 } 1922 xpt_release_ccb(done_ccb); 1923 cam_periph_release_locked(periph); 1924 return; 1925 } 1926 default: 1927 break; 1928 } 1929 xpt_release_ccb(done_ccb); 1930} 1931 1932static union cd_pages * 1933cdgetpage(struct cd_mode_params *mode_params) 1934{ 1935 union cd_pages *page; 1936 1937 if (mode_params->cdb_size == 10) 1938 page = (union cd_pages *)find_mode_page_10( 1939 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1940 else 1941 page = (union cd_pages *)find_mode_page_6( 1942 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1943 1944 return (page); 1945} 1946 1947static int 1948cdgetpagesize(int page_num) 1949{ 1950 int i; 1951 1952 for (i = 0; i < (sizeof(cd_page_size_table)/ 1953 sizeof(cd_page_size_table[0])); i++) { 1954 if (cd_page_size_table[i].page == page_num) 1955 return (cd_page_size_table[i].page_size); 1956 } 1957 1958 return (-1); 1959} 1960 1961static int 1962cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1963{ 1964 1965 struct cam_periph *periph; 1966 struct cd_softc *softc; 1967 int nocopyout, error = 0; 1968 1969 periph = (struct cam_periph *)dp->d_drv1; 1970 cam_periph_lock(periph); 1971 1972 softc = (struct cd_softc *)periph->softc; 1973 1974 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1975 ("cdioctl(%#lx)\n", cmd)); 1976 1977 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1978 cam_periph_unlock(periph); 1979 cam_periph_release(periph); 1980 return (error); 1981 } 1982 1983 /* 1984 * If we don't have media loaded, check for it. If still don't 1985 * have media loaded, we can only do a load or eject. 1986 * 1987 * We only care whether media is loaded if this is a cd-specific ioctl 1988 * (thus the IOCGROUP check below). Note that this will break if 1989 * anyone adds any ioctls into the switch statement below that don't 1990 * have their ioctl group set to 'c'. 1991 */ 1992 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1993 && ((cmd != CDIOCCLOSE) 1994 && (cmd != CDIOCEJECT)) 1995 && (IOCGROUP(cmd) == 'c')) { 1996 error = cdcheckmedia(periph); 1997 if (error != 0) { 1998 cam_periph_unhold(periph); 1999 cam_periph_unlock(periph); 2000 return (error); 2001 } 2002 } 2003 /* 2004 * Drop the lock here so later mallocs can use WAITOK. The periph 2005 * is essentially locked still with the cam_periph_hold call above. 2006 */ 2007 cam_periph_unlock(periph); 2008 2009 nocopyout = 0; 2010 switch (cmd) { 2011 2012 case CDIOCPLAYTRACKS: 2013 { 2014 struct ioc_play_track *args 2015 = (struct ioc_play_track *) addr; 2016 struct cd_mode_params params; 2017 union cd_pages *page; 2018 2019 params.alloc_len = sizeof(union cd_mode_data_6_10); 2020 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2021 M_WAITOK | M_ZERO); 2022 2023 cam_periph_lock(periph); 2024 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2025 ("trying to do CDIOCPLAYTRACKS\n")); 2026 2027 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2028 if (error) { 2029 free(params.mode_buf, M_SCSICD); 2030 cam_periph_unlock(periph); 2031 break; 2032 } 2033 page = cdgetpage(¶ms); 2034 2035 page->audio.flags &= ~CD_PA_SOTC; 2036 page->audio.flags |= CD_PA_IMMED; 2037 error = cdsetmode(periph, ¶ms); 2038 free(params.mode_buf, M_SCSICD); 2039 if (error) { 2040 cam_periph_unlock(periph); 2041 break; 2042 } 2043 2044 /* 2045 * This was originally implemented with the PLAY 2046 * AUDIO TRACK INDEX command, but that command was 2047 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2048 * drives support it but ATAPI and ATAPI-derivative 2049 * drives don't seem to support it. So we keep a 2050 * cache of the table of contents and translate 2051 * track numbers to MSF format. 2052 */ 2053 if (softc->flags & CD_FLAG_VALID_TOC) { 2054 union msf_lba *sentry, *eentry; 2055 int st, et; 2056 2057 if (args->end_track < 2058 softc->toc.header.ending_track + 1) 2059 args->end_track++; 2060 if (args->end_track > 2061 softc->toc.header.ending_track + 1) 2062 args->end_track = 2063 softc->toc.header.ending_track + 1; 2064 st = args->start_track - 2065 softc->toc.header.starting_track; 2066 et = args->end_track - 2067 softc->toc.header.starting_track; 2068 if ((st < 0) 2069 || (et < 0) 2070 || (st > (softc->toc.header.ending_track - 2071 softc->toc.header.starting_track))) { 2072 error = EINVAL; 2073 cam_periph_unlock(periph); 2074 break; 2075 } 2076 sentry = &softc->toc.entries[st].addr; 2077 eentry = &softc->toc.entries[et].addr; 2078 error = cdplaymsf(periph, 2079 sentry->msf.minute, 2080 sentry->msf.second, 2081 sentry->msf.frame, 2082 eentry->msf.minute, 2083 eentry->msf.second, 2084 eentry->msf.frame); 2085 } else { 2086 /* 2087 * If we don't have a valid TOC, try the 2088 * play track index command. It is part of 2089 * the SCSI-2 spec, but was removed in the 2090 * MMC specs. ATAPI and ATAPI-derived 2091 * drives don't support it. 2092 */ 2093 if (softc->quirks & CD_Q_BCD_TRACKS) { 2094 args->start_track = 2095 bin2bcd(args->start_track); 2096 args->end_track = 2097 bin2bcd(args->end_track); 2098 } 2099 error = cdplaytracks(periph, 2100 args->start_track, 2101 args->start_index, 2102 args->end_track, 2103 args->end_index); 2104 } 2105 cam_periph_unlock(periph); 2106 } 2107 break; 2108 case CDIOCPLAYMSF: 2109 { 2110 struct ioc_play_msf *args 2111 = (struct ioc_play_msf *) addr; 2112 struct cd_mode_params params; 2113 union cd_pages *page; 2114 2115 params.alloc_len = sizeof(union cd_mode_data_6_10); 2116 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2117 M_WAITOK | M_ZERO); 2118 2119 cam_periph_lock(periph); 2120 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2121 ("trying to do CDIOCPLAYMSF\n")); 2122 2123 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2124 if (error) { 2125 free(params.mode_buf, M_SCSICD); 2126 cam_periph_unlock(periph); 2127 break; 2128 } 2129 page = cdgetpage(¶ms); 2130 2131 page->audio.flags &= ~CD_PA_SOTC; 2132 page->audio.flags |= CD_PA_IMMED; 2133 error = cdsetmode(periph, ¶ms); 2134 free(params.mode_buf, M_SCSICD); 2135 if (error) { 2136 cam_periph_unlock(periph); 2137 break; 2138 } 2139 error = cdplaymsf(periph, 2140 args->start_m, 2141 args->start_s, 2142 args->start_f, 2143 args->end_m, 2144 args->end_s, 2145 args->end_f); 2146 cam_periph_unlock(periph); 2147 } 2148 break; 2149 case CDIOCPLAYBLOCKS: 2150 { 2151 struct ioc_play_blocks *args 2152 = (struct ioc_play_blocks *) addr; 2153 struct cd_mode_params params; 2154 union cd_pages *page; 2155 2156 params.alloc_len = sizeof(union cd_mode_data_6_10); 2157 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2158 M_WAITOK | M_ZERO); 2159 2160 cam_periph_lock(periph); 2161 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2162 ("trying to do CDIOCPLAYBLOCKS\n")); 2163 2164 2165 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2166 if (error) { 2167 free(params.mode_buf, M_SCSICD); 2168 cam_periph_unlock(periph); 2169 break; 2170 } 2171 page = cdgetpage(¶ms); 2172 2173 page->audio.flags &= ~CD_PA_SOTC; 2174 page->audio.flags |= CD_PA_IMMED; 2175 error = cdsetmode(periph, ¶ms); 2176 free(params.mode_buf, M_SCSICD); 2177 if (error) { 2178 cam_periph_unlock(periph); 2179 break; 2180 } 2181 error = cdplay(periph, args->blk, args->len); 2182 cam_periph_unlock(periph); 2183 } 2184 break; 2185 case CDIOCREADSUBCHANNEL_SYSSPACE: 2186 nocopyout = 1; 2187 /* Fallthrough */ 2188 case CDIOCREADSUBCHANNEL: 2189 { 2190 struct ioc_read_subchannel *args 2191 = (struct ioc_read_subchannel *) addr; 2192 struct cd_sub_channel_info *data; 2193 u_int32_t len = args->data_len; 2194 2195 data = malloc(sizeof(struct cd_sub_channel_info), 2196 M_SCSICD, M_WAITOK | M_ZERO); 2197 2198 cam_periph_lock(periph); 2199 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2200 ("trying to do CDIOCREADSUBCHANNEL\n")); 2201 2202 if ((len > sizeof(struct cd_sub_channel_info)) || 2203 (len < sizeof(struct cd_sub_channel_header))) { 2204 printf( 2205 "scsi_cd: cdioctl: " 2206 "cdioreadsubchannel: error, len=%d\n", 2207 len); 2208 error = EINVAL; 2209 free(data, M_SCSICD); 2210 cam_periph_unlock(periph); 2211 break; 2212 } 2213 2214 if (softc->quirks & CD_Q_BCD_TRACKS) 2215 args->track = bin2bcd(args->track); 2216 2217 error = cdreadsubchannel(periph, args->address_format, 2218 args->data_format, args->track, data, len); 2219 2220 if (error) { 2221 free(data, M_SCSICD); 2222 cam_periph_unlock(periph); 2223 break; 2224 } 2225 if (softc->quirks & CD_Q_BCD_TRACKS) 2226 data->what.track_info.track_number = 2227 bcd2bin(data->what.track_info.track_number); 2228 len = min(len, ((data->header.data_len[0] << 8) + 2229 data->header.data_len[1] + 2230 sizeof(struct cd_sub_channel_header))); 2231 cam_periph_unlock(periph); 2232 if (nocopyout == 0) { 2233 if (copyout(data, args->data, len) != 0) { 2234 error = EFAULT; 2235 } 2236 } else { 2237 bcopy(data, args->data, len); 2238 } 2239 free(data, M_SCSICD); 2240 } 2241 break; 2242 2243 case CDIOREADTOCHEADER: 2244 { 2245 struct ioc_toc_header *th; 2246 2247 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2248 M_WAITOK | M_ZERO); 2249 2250 cam_periph_lock(periph); 2251 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2252 ("trying to do CDIOREADTOCHEADER\n")); 2253 2254 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2255 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2256 if (error) { 2257 free(th, M_SCSICD); 2258 cam_periph_unlock(periph); 2259 break; 2260 } 2261 if (softc->quirks & CD_Q_BCD_TRACKS) { 2262 /* we are going to have to convert the BCD 2263 * encoding on the cd to what is expected 2264 */ 2265 th->starting_track = 2266 bcd2bin(th->starting_track); 2267 th->ending_track = bcd2bin(th->ending_track); 2268 } 2269 th->len = ntohs(th->len); 2270 bcopy(th, addr, sizeof(*th)); 2271 free(th, M_SCSICD); 2272 cam_periph_unlock(periph); 2273 } 2274 break; 2275 case CDIOREADTOCENTRYS: 2276 { 2277 struct cd_tocdata *data; 2278 struct cd_toc_single *lead; 2279 struct ioc_read_toc_entry *te = 2280 (struct ioc_read_toc_entry *) addr; 2281 struct ioc_toc_header *th; 2282 u_int32_t len, readlen, idx, num; 2283 u_int32_t starting_track = te->starting_track; 2284 2285 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2286 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2287 2288 cam_periph_lock(periph); 2289 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2290 ("trying to do CDIOREADTOCENTRYS\n")); 2291 2292 if (te->data_len < sizeof(struct cd_toc_entry) 2293 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2294 || (te->address_format != CD_MSF_FORMAT 2295 && te->address_format != CD_LBA_FORMAT)) { 2296 error = EINVAL; 2297 printf("scsi_cd: error in readtocentries, " 2298 "returning EINVAL\n"); 2299 free(data, M_SCSICD); 2300 free(lead, M_SCSICD); 2301 cam_periph_unlock(periph); 2302 break; 2303 } 2304 2305 th = &data->header; 2306 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2307 sizeof (*th), /*sense_flags*/0); 2308 if (error) { 2309 free(data, M_SCSICD); 2310 free(lead, M_SCSICD); 2311 cam_periph_unlock(periph); 2312 break; 2313 } 2314 2315 if (softc->quirks & CD_Q_BCD_TRACKS) { 2316 /* we are going to have to convert the BCD 2317 * encoding on the cd to what is expected 2318 */ 2319 th->starting_track = 2320 bcd2bin(th->starting_track); 2321 th->ending_track = bcd2bin(th->ending_track); 2322 } 2323 2324 if (starting_track == 0) 2325 starting_track = th->starting_track; 2326 else if (starting_track == LEADOUT) 2327 starting_track = th->ending_track + 1; 2328 else if (starting_track < th->starting_track || 2329 starting_track > th->ending_track + 1) { 2330 printf("scsi_cd: error in readtocentries, " 2331 "returning EINVAL\n"); 2332 free(data, M_SCSICD); 2333 free(lead, M_SCSICD); 2334 cam_periph_unlock(periph); 2335 error = EINVAL; 2336 break; 2337 } 2338 2339 /* calculate reading length without leadout entry */ 2340 readlen = (th->ending_track - starting_track + 1) * 2341 sizeof(struct cd_toc_entry); 2342 2343 /* and with leadout entry */ 2344 len = readlen + sizeof(struct cd_toc_entry); 2345 if (te->data_len < len) { 2346 len = te->data_len; 2347 if (readlen > len) 2348 readlen = len; 2349 } 2350 if (len > sizeof(data->entries)) { 2351 printf("scsi_cd: error in readtocentries, " 2352 "returning EINVAL\n"); 2353 error = EINVAL; 2354 free(data, M_SCSICD); 2355 free(lead, M_SCSICD); 2356 cam_periph_unlock(periph); 2357 break; 2358 } 2359 num = len / sizeof(struct cd_toc_entry); 2360 2361 if (readlen > 0) { 2362 error = cdreadtoc(periph, te->address_format, 2363 starting_track, 2364 (u_int8_t *)data, 2365 readlen + sizeof (*th), 2366 /*sense_flags*/0); 2367 if (error) { 2368 free(data, M_SCSICD); 2369 free(lead, M_SCSICD); 2370 cam_periph_unlock(periph); 2371 break; 2372 } 2373 } 2374 2375 /* make leadout entry if needed */ 2376 idx = starting_track + num - 1; 2377 if (softc->quirks & CD_Q_BCD_TRACKS) 2378 th->ending_track = bcd2bin(th->ending_track); 2379 if (idx == th->ending_track + 1) { 2380 error = cdreadtoc(periph, te->address_format, 2381 LEADOUT, (u_int8_t *)lead, 2382 sizeof(*lead), 2383 /*sense_flags*/0); 2384 if (error) { 2385 free(data, M_SCSICD); 2386 free(lead, M_SCSICD); 2387 cam_periph_unlock(periph); 2388 break; 2389 } 2390 data->entries[idx - starting_track] = 2391 lead->entry; 2392 } 2393 if (softc->quirks & CD_Q_BCD_TRACKS) { 2394 for (idx = 0; idx < num - 1; idx++) { 2395 data->entries[idx].track = 2396 bcd2bin(data->entries[idx].track); 2397 } 2398 } 2399 2400 cam_periph_unlock(periph); 2401 error = copyout(data->entries, te->data, len); 2402 free(data, M_SCSICD); 2403 free(lead, M_SCSICD); 2404 } 2405 break; 2406 case CDIOREADTOCENTRY: 2407 { 2408 struct cd_toc_single *data; 2409 struct ioc_read_toc_single_entry *te = 2410 (struct ioc_read_toc_single_entry *) addr; 2411 struct ioc_toc_header *th; 2412 u_int32_t track; 2413 2414 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2415 2416 cam_periph_lock(periph); 2417 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2418 ("trying to do CDIOREADTOCENTRY\n")); 2419 2420 if (te->address_format != CD_MSF_FORMAT 2421 && te->address_format != CD_LBA_FORMAT) { 2422 printf("error in readtocentry, " 2423 " returning EINVAL\n"); 2424 free(data, M_SCSICD); 2425 error = EINVAL; 2426 cam_periph_unlock(periph); 2427 break; 2428 } 2429 2430 th = &data->header; 2431 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2432 sizeof (*th), /*sense_flags*/0); 2433 if (error) { 2434 free(data, M_SCSICD); 2435 cam_periph_unlock(periph); 2436 break; 2437 } 2438 2439 if (softc->quirks & CD_Q_BCD_TRACKS) { 2440 /* we are going to have to convert the BCD 2441 * encoding on the cd to what is expected 2442 */ 2443 th->starting_track = 2444 bcd2bin(th->starting_track); 2445 th->ending_track = bcd2bin(th->ending_track); 2446 } 2447 track = te->track; 2448 if (track == 0) 2449 track = th->starting_track; 2450 else if (track == LEADOUT) 2451 /* OK */; 2452 else if (track < th->starting_track || 2453 track > th->ending_track + 1) { 2454 printf("error in readtocentry, " 2455 " returning EINVAL\n"); 2456 free(data, M_SCSICD); 2457 error = EINVAL; 2458 cam_periph_unlock(periph); 2459 break; 2460 } 2461 2462 error = cdreadtoc(periph, te->address_format, track, 2463 (u_int8_t *)data, sizeof(*data), 2464 /*sense_flags*/0); 2465 if (error) { 2466 free(data, M_SCSICD); 2467 cam_periph_unlock(periph); 2468 break; 2469 } 2470 2471 if (softc->quirks & CD_Q_BCD_TRACKS) 2472 data->entry.track = bcd2bin(data->entry.track); 2473 bcopy(&data->entry, &te->entry, 2474 sizeof(struct cd_toc_entry)); 2475 free(data, M_SCSICD); 2476 cam_periph_unlock(periph); 2477 } 2478 break; 2479 case CDIOCSETPATCH: 2480 { 2481 struct ioc_patch *arg = (struct ioc_patch *)addr; 2482 struct cd_mode_params params; 2483 union cd_pages *page; 2484 2485 params.alloc_len = sizeof(union cd_mode_data_6_10); 2486 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2487 M_WAITOK | M_ZERO); 2488 2489 cam_periph_lock(periph); 2490 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2491 ("trying to do CDIOCSETPATCH\n")); 2492 2493 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2494 if (error) { 2495 free(params.mode_buf, M_SCSICD); 2496 cam_periph_unlock(periph); 2497 break; 2498 } 2499 page = cdgetpage(¶ms); 2500 2501 page->audio.port[LEFT_PORT].channels = 2502 arg->patch[0]; 2503 page->audio.port[RIGHT_PORT].channels = 2504 arg->patch[1]; 2505 page->audio.port[2].channels = arg->patch[2]; 2506 page->audio.port[3].channels = arg->patch[3]; 2507 error = cdsetmode(periph, ¶ms); 2508 free(params.mode_buf, M_SCSICD); 2509 cam_periph_unlock(periph); 2510 } 2511 break; 2512 case CDIOCGETVOL: 2513 { 2514 struct ioc_vol *arg = (struct ioc_vol *) addr; 2515 struct cd_mode_params params; 2516 union cd_pages *page; 2517 2518 params.alloc_len = sizeof(union cd_mode_data_6_10); 2519 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2520 M_WAITOK | M_ZERO); 2521 2522 cam_periph_lock(periph); 2523 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2524 ("trying to do CDIOCGETVOL\n")); 2525 2526 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2527 if (error) { 2528 free(params.mode_buf, M_SCSICD); 2529 cam_periph_unlock(periph); 2530 break; 2531 } 2532 page = cdgetpage(¶ms); 2533 2534 arg->vol[LEFT_PORT] = 2535 page->audio.port[LEFT_PORT].volume; 2536 arg->vol[RIGHT_PORT] = 2537 page->audio.port[RIGHT_PORT].volume; 2538 arg->vol[2] = page->audio.port[2].volume; 2539 arg->vol[3] = page->audio.port[3].volume; 2540 free(params.mode_buf, M_SCSICD); 2541 cam_periph_unlock(periph); 2542 } 2543 break; 2544 case CDIOCSETVOL: 2545 { 2546 struct ioc_vol *arg = (struct ioc_vol *) addr; 2547 struct cd_mode_params params; 2548 union cd_pages *page; 2549 2550 params.alloc_len = sizeof(union cd_mode_data_6_10); 2551 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2552 M_WAITOK | M_ZERO); 2553 2554 cam_periph_lock(periph); 2555 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2556 ("trying to do CDIOCSETVOL\n")); 2557 2558 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2559 if (error) { 2560 free(params.mode_buf, M_SCSICD); 2561 cam_periph_unlock(periph); 2562 break; 2563 } 2564 page = cdgetpage(¶ms); 2565 2566 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2567 page->audio.port[LEFT_PORT].volume = 2568 arg->vol[LEFT_PORT]; 2569 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2570 page->audio.port[RIGHT_PORT].volume = 2571 arg->vol[RIGHT_PORT]; 2572 page->audio.port[2].volume = arg->vol[2]; 2573 page->audio.port[3].volume = arg->vol[3]; 2574 error = cdsetmode(periph, ¶ms); 2575 cam_periph_unlock(periph); 2576 free(params.mode_buf, M_SCSICD); 2577 } 2578 break; 2579 case CDIOCSETMONO: 2580 { 2581 struct cd_mode_params params; 2582 union cd_pages *page; 2583 2584 params.alloc_len = sizeof(union cd_mode_data_6_10); 2585 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2586 M_WAITOK | M_ZERO); 2587 2588 cam_periph_lock(periph); 2589 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2590 ("trying to do CDIOCSETMONO\n")); 2591 2592 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2593 if (error) { 2594 free(params.mode_buf, M_SCSICD); 2595 cam_periph_unlock(periph); 2596 break; 2597 } 2598 page = cdgetpage(¶ms); 2599 2600 page->audio.port[LEFT_PORT].channels = 2601 LEFT_CHANNEL | RIGHT_CHANNEL; 2602 page->audio.port[RIGHT_PORT].channels = 2603 LEFT_CHANNEL | RIGHT_CHANNEL; 2604 page->audio.port[2].channels = 0; 2605 page->audio.port[3].channels = 0; 2606 error = cdsetmode(periph, ¶ms); 2607 cam_periph_unlock(periph); 2608 free(params.mode_buf, M_SCSICD); 2609 } 2610 break; 2611 case CDIOCSETSTEREO: 2612 { 2613 struct cd_mode_params params; 2614 union cd_pages *page; 2615 2616 params.alloc_len = sizeof(union cd_mode_data_6_10); 2617 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2618 M_WAITOK | M_ZERO); 2619 2620 cam_periph_lock(periph); 2621 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2622 ("trying to do CDIOCSETSTEREO\n")); 2623 2624 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2625 if (error) { 2626 free(params.mode_buf, M_SCSICD); 2627 cam_periph_unlock(periph); 2628 break; 2629 } 2630 page = cdgetpage(¶ms); 2631 2632 page->audio.port[LEFT_PORT].channels = 2633 LEFT_CHANNEL; 2634 page->audio.port[RIGHT_PORT].channels = 2635 RIGHT_CHANNEL; 2636 page->audio.port[2].channels = 0; 2637 page->audio.port[3].channels = 0; 2638 error = cdsetmode(periph, ¶ms); 2639 free(params.mode_buf, M_SCSICD); 2640 cam_periph_unlock(periph); 2641 } 2642 break; 2643 case CDIOCSETMUTE: 2644 { 2645 struct cd_mode_params params; 2646 union cd_pages *page; 2647 2648 params.alloc_len = sizeof(union cd_mode_data_6_10); 2649 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2650 M_WAITOK | M_ZERO); 2651 2652 cam_periph_lock(periph); 2653 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2654 ("trying to do CDIOCSETMUTE\n")); 2655 2656 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2657 if (error) { 2658 free(params.mode_buf, M_SCSICD); 2659 cam_periph_unlock(periph); 2660 break; 2661 } 2662 page = cdgetpage(¶ms); 2663 2664 page->audio.port[LEFT_PORT].channels = 0; 2665 page->audio.port[RIGHT_PORT].channels = 0; 2666 page->audio.port[2].channels = 0; 2667 page->audio.port[3].channels = 0; 2668 error = cdsetmode(periph, ¶ms); 2669 free(params.mode_buf, M_SCSICD); 2670 cam_periph_unlock(periph); 2671 } 2672 break; 2673 case CDIOCSETLEFT: 2674 { 2675 struct cd_mode_params params; 2676 union cd_pages *page; 2677 2678 params.alloc_len = sizeof(union cd_mode_data_6_10); 2679 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2680 M_WAITOK | M_ZERO); 2681 2682 cam_periph_lock(periph); 2683 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2684 ("trying to do CDIOCSETLEFT\n")); 2685 2686 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2687 if (error) { 2688 free(params.mode_buf, M_SCSICD); 2689 cam_periph_unlock(periph); 2690 break; 2691 } 2692 page = cdgetpage(¶ms); 2693 2694 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2695 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2696 page->audio.port[2].channels = 0; 2697 page->audio.port[3].channels = 0; 2698 error = cdsetmode(periph, ¶ms); 2699 free(params.mode_buf, M_SCSICD); 2700 cam_periph_unlock(periph); 2701 } 2702 break; 2703 case CDIOCSETRIGHT: 2704 { 2705 struct cd_mode_params params; 2706 union cd_pages *page; 2707 2708 params.alloc_len = sizeof(union cd_mode_data_6_10); 2709 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2710 M_WAITOK | M_ZERO); 2711 2712 cam_periph_lock(periph); 2713 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2714 ("trying to do CDIOCSETRIGHT\n")); 2715 2716 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2717 if (error) { 2718 free(params.mode_buf, M_SCSICD); 2719 cam_periph_unlock(periph); 2720 break; 2721 } 2722 page = cdgetpage(¶ms); 2723 2724 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2725 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2726 page->audio.port[2].channels = 0; 2727 page->audio.port[3].channels = 0; 2728 error = cdsetmode(periph, ¶ms); 2729 free(params.mode_buf, M_SCSICD); 2730 cam_periph_unlock(periph); 2731 } 2732 break; 2733 case CDIOCRESUME: 2734 cam_periph_lock(periph); 2735 error = cdpause(periph, 1); 2736 cam_periph_unlock(periph); 2737 break; 2738 case CDIOCPAUSE: 2739 cam_periph_lock(periph); 2740 error = cdpause(periph, 0); 2741 cam_periph_unlock(periph); 2742 break; 2743 case CDIOCSTART: 2744 cam_periph_lock(periph); 2745 error = cdstartunit(periph, 0); 2746 cam_periph_unlock(periph); 2747 break; 2748 case CDIOCCLOSE: 2749 cam_periph_lock(periph); 2750 error = cdstartunit(periph, 1); 2751 cam_periph_unlock(periph); 2752 break; 2753 case CDIOCSTOP: 2754 cam_periph_lock(periph); 2755 error = cdstopunit(periph, 0); 2756 cam_periph_unlock(periph); 2757 break; 2758 case CDIOCEJECT: 2759 cam_periph_lock(periph); 2760 error = cdstopunit(periph, 1); 2761 cam_periph_unlock(periph); 2762 break; 2763 case CDIOCALLOW: 2764 cam_periph_lock(periph); 2765 cdprevent(periph, PR_ALLOW); 2766 cam_periph_unlock(periph); 2767 break; 2768 case CDIOCPREVENT: 2769 cam_periph_lock(periph); 2770 cdprevent(periph, PR_PREVENT); 2771 cam_periph_unlock(periph); 2772 break; 2773 case CDIOCSETDEBUG: 2774 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2775 error = ENOTTY; 2776 break; 2777 case CDIOCCLRDEBUG: 2778 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2779 error = ENOTTY; 2780 break; 2781 case CDIOCRESET: 2782 /* return (cd_reset(periph)); */ 2783 error = ENOTTY; 2784 break; 2785 case CDRIOCREADSPEED: 2786 cam_periph_lock(periph); 2787 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2788 cam_periph_unlock(periph); 2789 break; 2790 case CDRIOCWRITESPEED: 2791 cam_periph_lock(periph); 2792 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2793 cam_periph_unlock(periph); 2794 break; 2795 case CDRIOCGETBLOCKSIZE: 2796 *(int *)addr = softc->params.blksize; 2797 break; 2798 case CDRIOCSETBLOCKSIZE: 2799 if (*(int *)addr <= 0) { 2800 error = EINVAL; 2801 break; 2802 } 2803 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2804 break; 2805 case DVDIOCSENDKEY: 2806 case DVDIOCREPORTKEY: { 2807 struct dvd_authinfo *authinfo; 2808 2809 authinfo = (struct dvd_authinfo *)addr; 2810 2811 if (cmd == DVDIOCREPORTKEY) 2812 error = cdreportkey(periph, authinfo); 2813 else 2814 error = cdsendkey(periph, authinfo); 2815 break; 2816 } 2817 case DVDIOCREADSTRUCTURE: { 2818 struct dvd_struct *dvdstruct; 2819 2820 dvdstruct = (struct dvd_struct *)addr; 2821 2822 error = cdreaddvdstructure(periph, dvdstruct); 2823 2824 break; 2825 } 2826 default: 2827 cam_periph_lock(periph); 2828 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2829 cam_periph_unlock(periph); 2830 break; 2831 } 2832 2833 cam_periph_lock(periph); 2834 cam_periph_unhold(periph); 2835 2836 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2837 if (error && bootverbose) { 2838 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2839 } 2840 cam_periph_unlock(periph); 2841 2842 return (error); 2843} 2844 2845static void 2846cdprevent(struct cam_periph *periph, int action) 2847{ 2848 union ccb *ccb; 2849 struct cd_softc *softc; 2850 int error; 2851 2852 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2853 2854 softc = (struct cd_softc *)periph->softc; 2855 2856 if (((action == PR_ALLOW) 2857 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2858 || ((action == PR_PREVENT) 2859 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2860 return; 2861 } 2862 2863 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2864 2865 scsi_prevent(&ccb->csio, 2866 /*retries*/ cd_retry_count, 2867 cddone, 2868 MSG_SIMPLE_Q_TAG, 2869 action, 2870 SSD_FULL_SIZE, 2871 /* timeout */60000); 2872 2873 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2874 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2875 2876 xpt_release_ccb(ccb); 2877 2878 if (error == 0) { 2879 if (action == PR_ALLOW) 2880 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2881 else 2882 softc->flags |= CD_FLAG_DISC_LOCKED; 2883 } 2884} 2885 2886/* 2887 * XXX: the disk media and sector size is only really able to change 2888 * XXX: while the device is closed. 2889 */ 2890static int 2891cdcheckmedia(struct cam_periph *periph) 2892{ 2893 struct cd_softc *softc; 2894 struct ioc_toc_header *toch; 2895 struct cd_toc_single leadout; 2896 u_int32_t size, toclen; 2897 int error, num_entries, cdindex; 2898 2899 softc = (struct cd_softc *)periph->softc; 2900 2901 cdprevent(periph, PR_PREVENT); 2902 softc->disk->d_sectorsize = 2048; 2903 softc->disk->d_mediasize = 0; 2904 2905 /* 2906 * Get the disc size and block size. If we can't get it, we don't 2907 * have media, most likely. 2908 */ 2909 if ((error = cdsize(periph, &size)) != 0) { 2910 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2911 cdprevent(periph, PR_ALLOW); 2912 return (error); 2913 } else { 2914 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2915 softc->disk->d_sectorsize = softc->params.blksize; 2916 softc->disk->d_mediasize = 2917 (off_t)softc->params.blksize * softc->params.disksize; 2918 } 2919 2920 /* 2921 * Now we check the table of contents. This (currently) is only 2922 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2923 * things like present a separate entry in /dev for each track, 2924 * like that acd(4) driver does. 2925 */ 2926 bzero(&softc->toc, sizeof(softc->toc)); 2927 toch = &softc->toc.header; 2928 /* 2929 * We will get errors here for media that doesn't have a table of 2930 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2931 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2932 * has not been recorded (no complete session) and the Format codes 2933 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2934 * with an INVALID FIELD IN CDB. Devices that are not capable of 2935 * reading an incomplete session on DDC/CD-R/RW media shall report 2936 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2937 * 2938 * So this isn't fatal if we can't read the table of contents, it 2939 * just means that the user won't be able to issue the play tracks 2940 * ioctl, and likely lots of other stuff won't work either. They 2941 * need to burn the CD before we can do a whole lot with it. So 2942 * we don't print anything here if we get an error back. 2943 */ 2944 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2945 SF_NO_PRINT); 2946 /* 2947 * Errors in reading the table of contents aren't fatal, we just 2948 * won't have a valid table of contents cached. 2949 */ 2950 if (error != 0) { 2951 error = 0; 2952 bzero(&softc->toc, sizeof(softc->toc)); 2953 goto bailout; 2954 } 2955 2956 if (softc->quirks & CD_Q_BCD_TRACKS) { 2957 toch->starting_track = bcd2bin(toch->starting_track); 2958 toch->ending_track = bcd2bin(toch->ending_track); 2959 } 2960 2961 /* Number of TOC entries, plus leadout */ 2962 num_entries = (toch->ending_track - toch->starting_track) + 2; 2963 2964 if (num_entries <= 0) 2965 goto bailout; 2966 2967 toclen = num_entries * sizeof(struct cd_toc_entry); 2968 2969 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2970 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2971 SF_NO_PRINT); 2972 if (error != 0) { 2973 error = 0; 2974 bzero(&softc->toc, sizeof(softc->toc)); 2975 goto bailout; 2976 } 2977 2978 if (softc->quirks & CD_Q_BCD_TRACKS) { 2979 toch->starting_track = bcd2bin(toch->starting_track); 2980 toch->ending_track = bcd2bin(toch->ending_track); 2981 } 2982 /* 2983 * XXX KDM is this necessary? Probably only if the drive doesn't 2984 * return leadout information with the table of contents. 2985 */ 2986 cdindex = toch->starting_track + num_entries -1; 2987 if (cdindex == toch->ending_track + 1) { 2988 2989 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2990 (u_int8_t *)&leadout, sizeof(leadout), 2991 SF_NO_PRINT); 2992 if (error != 0) { 2993 error = 0; 2994 goto bailout; 2995 } 2996 softc->toc.entries[cdindex - toch->starting_track] = 2997 leadout.entry; 2998 } 2999 if (softc->quirks & CD_Q_BCD_TRACKS) { 3000 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3001 softc->toc.entries[cdindex].track = 3002 bcd2bin(softc->toc.entries[cdindex].track); 3003 } 3004 } 3005 3006 softc->flags |= CD_FLAG_VALID_TOC; 3007 3008 /* If the first track is audio, correct sector size. */ 3009 if ((softc->toc.entries[0].control & 4) == 0) { 3010 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3011 softc->disk->d_mediasize = 3012 (off_t)softc->params.blksize * softc->params.disksize; 3013 } 3014 3015bailout: 3016 3017 /* 3018 * We unconditionally (re)set the blocksize each time the 3019 * CD device is opened. This is because the CD can change, 3020 * and therefore the blocksize might change. 3021 * XXX problems here if some slice or partition is still 3022 * open with the old size? 3023 */ 3024 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3025 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3026 softc->disk->d_devstat->block_size = softc->params.blksize; 3027 3028 return (error); 3029} 3030 3031static int 3032cdsize(struct cam_periph *periph, u_int32_t *size) 3033{ 3034 struct cd_softc *softc; 3035 union ccb *ccb; 3036 struct scsi_read_capacity_data *rcap_buf; 3037 int error; 3038 3039 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3040 3041 softc = (struct cd_softc *)periph->softc; 3042 3043 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3044 3045 /* XXX Should be M_WAITOK */ 3046 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3047 M_SCSICD, M_NOWAIT | M_ZERO); 3048 if (rcap_buf == NULL) 3049 return (ENOMEM); 3050 3051 scsi_read_capacity(&ccb->csio, 3052 /*retries*/ cd_retry_count, 3053 cddone, 3054 MSG_SIMPLE_Q_TAG, 3055 rcap_buf, 3056 SSD_FULL_SIZE, 3057 /* timeout */20000); 3058 3059 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3060 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3061 3062 xpt_release_ccb(ccb); 3063 3064 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3065 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3066 /* Make sure we got at least some block size. */ 3067 if (error == 0 && softc->params.blksize == 0) 3068 error = EIO; 3069 /* 3070 * SCSI-3 mandates that the reported blocksize shall be 2048. 3071 * Older drives sometimes report funny values, trim it down to 3072 * 2048, or other parts of the kernel will get confused. 3073 * 3074 * XXX we leave drives alone that might report 512 bytes, as 3075 * well as drives reporting more weird sizes like perhaps 4K. 3076 */ 3077 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3078 softc->params.blksize = 2048; 3079 3080 free(rcap_buf, M_SCSICD); 3081 *size = softc->params.disksize; 3082 3083 return (error); 3084 3085} 3086 3087static int 3088cd6byteworkaround(union ccb *ccb) 3089{ 3090 u_int8_t *cdb; 3091 struct cam_periph *periph; 3092 struct cd_softc *softc; 3093 struct cd_mode_params *params; 3094 int frozen, found; 3095 3096 periph = xpt_path_periph(ccb->ccb_h.path); 3097 softc = (struct cd_softc *)periph->softc; 3098 3099 cdb = ccb->csio.cdb_io.cdb_bytes; 3100 3101 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3102 || ((cdb[0] != MODE_SENSE_6) 3103 && (cdb[0] != MODE_SELECT_6))) 3104 return (0); 3105 3106 /* 3107 * Because there is no convenient place to stash the overall 3108 * cd_mode_params structure pointer, we have to grab it like this. 3109 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3110 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3111 * 3112 * XXX It would be nice if, at some point, we could increase the 3113 * number of available peripheral private pointers. Both pointers 3114 * are currently used in most every peripheral driver. 3115 */ 3116 found = 0; 3117 3118 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3119 if (params->mode_buf == ccb->csio.data_ptr) { 3120 found = 1; 3121 break; 3122 } 3123 } 3124 3125 /* 3126 * This shouldn't happen. All mode sense and mode select 3127 * operations in the cd(4) driver MUST go through cdgetmode() and 3128 * cdsetmode()! 3129 */ 3130 if (found == 0) { 3131 xpt_print(periph->path, 3132 "mode buffer not found in mode queue!\n"); 3133 return (0); 3134 } 3135 3136 params->cdb_size = 10; 3137 softc->minimum_command_size = 10; 3138 xpt_print(ccb->ccb_h.path, 3139 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3140 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3141 3142 if (cdb[0] == MODE_SENSE_6) { 3143 struct scsi_mode_sense_10 ms10; 3144 struct scsi_mode_sense_6 *ms6; 3145 int len; 3146 3147 ms6 = (struct scsi_mode_sense_6 *)cdb; 3148 3149 bzero(&ms10, sizeof(ms10)); 3150 ms10.opcode = MODE_SENSE_10; 3151 ms10.byte2 = ms6->byte2; 3152 ms10.page = ms6->page; 3153 3154 /* 3155 * 10 byte mode header, block descriptor, 3156 * sizeof(union cd_pages) 3157 */ 3158 len = sizeof(struct cd_mode_data_10); 3159 ccb->csio.dxfer_len = len; 3160 3161 scsi_ulto2b(len, ms10.length); 3162 ms10.control = ms6->control; 3163 bcopy(&ms10, cdb, 10); 3164 ccb->csio.cdb_len = 10; 3165 } else { 3166 struct scsi_mode_select_10 ms10; 3167 struct scsi_mode_select_6 *ms6; 3168 struct scsi_mode_header_6 *header6; 3169 struct scsi_mode_header_10 *header10; 3170 struct scsi_mode_page_header *page_header; 3171 int blk_desc_len, page_num, page_size, len; 3172 3173 ms6 = (struct scsi_mode_select_6 *)cdb; 3174 3175 bzero(&ms10, sizeof(ms10)); 3176 ms10.opcode = MODE_SELECT_10; 3177 ms10.byte2 = ms6->byte2; 3178 3179 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3180 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3181 3182 page_header = find_mode_page_6(header6); 3183 page_num = page_header->page_code; 3184 3185 blk_desc_len = header6->blk_desc_len; 3186 3187 page_size = cdgetpagesize(page_num); 3188 3189 if (page_size != (page_header->page_length + 3190 sizeof(*page_header))) 3191 page_size = page_header->page_length + 3192 sizeof(*page_header); 3193 3194 len = sizeof(*header10) + blk_desc_len + page_size; 3195 3196 len = min(params->alloc_len, len); 3197 3198 /* 3199 * Since the 6 byte parameter header is shorter than the 10 3200 * byte parameter header, we need to copy the actual mode 3201 * page data, and the block descriptor, if any, so things wind 3202 * up in the right place. The regions will overlap, but 3203 * bcopy() does the right thing. 3204 */ 3205 bcopy(params->mode_buf + sizeof(*header6), 3206 params->mode_buf + sizeof(*header10), 3207 len - sizeof(*header10)); 3208 3209 /* Make sure these fields are set correctly. */ 3210 scsi_ulto2b(0, header10->data_length); 3211 header10->medium_type = 0; 3212 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3213 3214 ccb->csio.dxfer_len = len; 3215 3216 scsi_ulto2b(len, ms10.length); 3217 ms10.control = ms6->control; 3218 bcopy(&ms10, cdb, 10); 3219 ccb->csio.cdb_len = 10; 3220 } 3221 3222 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3223 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3224 xpt_action(ccb); 3225 if (frozen) { 3226 cam_release_devq(ccb->ccb_h.path, 3227 /*relsim_flags*/0, 3228 /*openings*/0, 3229 /*timeout*/0, 3230 /*getcount_only*/0); 3231 } 3232 3233 return (ERESTART); 3234} 3235 3236static int 3237cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3238{ 3239 struct cd_softc *softc; 3240 struct cam_periph *periph; 3241 int error, error_code, sense_key, asc, ascq; 3242 3243 periph = xpt_path_periph(ccb->ccb_h.path); 3244 softc = (struct cd_softc *)periph->softc; 3245 3246 error = 0; 3247 3248 /* 3249 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3250 * CDB comes back with this particular error, try transforming it 3251 * into the 10 byte version. 3252 */ 3253 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3254 error = cd6byteworkaround(ccb); 3255 } else if (scsi_extract_sense_ccb(ccb, 3256 &error_code, &sense_key, &asc, &ascq)) { 3257 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3258 error = cd6byteworkaround(ccb); 3259 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3260 asc == 0x28 && ascq == 0x00) 3261 disk_media_changed(softc->disk, M_NOWAIT); 3262 else if (sense_key == SSD_KEY_NOT_READY && 3263 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3264 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3265 disk_media_gone(softc->disk, M_NOWAIT); 3266 } 3267 } 3268 3269 if (error == ERESTART) 3270 return (error); 3271 3272 /* 3273 * XXX 3274 * Until we have a better way of doing pack validation, 3275 * don't treat UAs as errors. 3276 */ 3277 sense_flags |= SF_RETRY_UA; 3278 return (cam_periph_error(ccb, cam_flags, sense_flags, 3279 &softc->saved_ccb)); 3280} 3281 3282static void 3283cdmediapoll(void *arg) 3284{ 3285 struct cam_periph *periph = arg; 3286 struct cd_softc *softc = periph->softc; 3287 3288 if (softc->flags & CD_FLAG_CHANGER) 3289 return; 3290 3291 if (softc->state == CD_STATE_NORMAL && !softc->tur && 3292 softc->outstanding_cmds == 0) { 3293 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3294 softc->tur = 1; 3295 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 3296 } 3297 } 3298 /* Queue us up again */ 3299 if (cd_poll_period != 0) 3300 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3301} 3302 3303/* 3304 * Read table of contents 3305 */ 3306static int 3307cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3308 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3309{ 3310 struct scsi_read_toc *scsi_cmd; 3311 u_int32_t ntoc; 3312 struct ccb_scsiio *csio; 3313 union ccb *ccb; 3314 int error; 3315 3316 ntoc = len; 3317 error = 0; 3318 3319 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3320 3321 csio = &ccb->csio; 3322 3323 cam_fill_csio(csio, 3324 /* retries */ cd_retry_count, 3325 /* cbfcnp */ cddone, 3326 /* flags */ CAM_DIR_IN, 3327 /* tag_action */ MSG_SIMPLE_Q_TAG, 3328 /* data_ptr */ data, 3329 /* dxfer_len */ len, 3330 /* sense_len */ SSD_FULL_SIZE, 3331 sizeof(struct scsi_read_toc), 3332 /* timeout */ 50000); 3333 3334 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3335 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3336 3337 if (mode == CD_MSF_FORMAT) 3338 scsi_cmd->byte2 |= CD_MSF; 3339 scsi_cmd->from_track = start; 3340 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3341 scsi_cmd->data_len[0] = (ntoc) >> 8; 3342 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3343 3344 scsi_cmd->op_code = READ_TOC; 3345 3346 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3347 /*sense_flags*/SF_RETRY_UA | sense_flags); 3348 3349 xpt_release_ccb(ccb); 3350 3351 return(error); 3352} 3353 3354static int 3355cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3356 u_int32_t format, int track, 3357 struct cd_sub_channel_info *data, u_int32_t len) 3358{ 3359 struct scsi_read_subchannel *scsi_cmd; 3360 struct ccb_scsiio *csio; 3361 union ccb *ccb; 3362 int error; 3363 3364 error = 0; 3365 3366 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3367 3368 csio = &ccb->csio; 3369 3370 cam_fill_csio(csio, 3371 /* retries */ cd_retry_count, 3372 /* cbfcnp */ cddone, 3373 /* flags */ CAM_DIR_IN, 3374 /* tag_action */ MSG_SIMPLE_Q_TAG, 3375 /* data_ptr */ (u_int8_t *)data, 3376 /* dxfer_len */ len, 3377 /* sense_len */ SSD_FULL_SIZE, 3378 sizeof(struct scsi_read_subchannel), 3379 /* timeout */ 50000); 3380 3381 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3382 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3383 3384 scsi_cmd->op_code = READ_SUBCHANNEL; 3385 if (mode == CD_MSF_FORMAT) 3386 scsi_cmd->byte1 |= CD_MSF; 3387 scsi_cmd->byte2 = SRS_SUBQ; 3388 scsi_cmd->subchan_format = format; 3389 scsi_cmd->track = track; 3390 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3391 scsi_cmd->control = 0; 3392 3393 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3394 /*sense_flags*/SF_RETRY_UA); 3395 3396 xpt_release_ccb(ccb); 3397 3398 return(error); 3399} 3400 3401 3402/* 3403 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3404 * routine. See comments in cd6byteworkaround() for details. 3405 */ 3406static int 3407cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3408 u_int32_t page) 3409{ 3410 struct ccb_scsiio *csio; 3411 struct cd_softc *softc; 3412 union ccb *ccb; 3413 int param_len; 3414 int error; 3415 3416 softc = (struct cd_softc *)periph->softc; 3417 3418 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3419 3420 csio = &ccb->csio; 3421 3422 data->cdb_size = softc->minimum_command_size; 3423 if (data->cdb_size < 10) 3424 param_len = sizeof(struct cd_mode_data); 3425 else 3426 param_len = sizeof(struct cd_mode_data_10); 3427 3428 /* Don't say we've got more room than we actually allocated */ 3429 param_len = min(param_len, data->alloc_len); 3430 3431 scsi_mode_sense_len(csio, 3432 /* retries */ cd_retry_count, 3433 /* cbfcnp */ cddone, 3434 /* tag_action */ MSG_SIMPLE_Q_TAG, 3435 /* dbd */ 0, 3436 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3437 /* page */ page, 3438 /* param_buf */ data->mode_buf, 3439 /* param_len */ param_len, 3440 /* minimum_cmd_size */ softc->minimum_command_size, 3441 /* sense_len */ SSD_FULL_SIZE, 3442 /* timeout */ 50000); 3443 3444 /* 3445 * It would be nice not to have to do this, but there's no 3446 * available pointer in the CCB that would allow us to stuff the 3447 * mode params structure in there and retrieve it in 3448 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3449 * lets the caller know what CDB size we ended up using, so they 3450 * can find the actual mode page offset. 3451 */ 3452 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3453 3454 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3455 /*sense_flags*/SF_RETRY_UA); 3456 3457 xpt_release_ccb(ccb); 3458 3459 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3460 3461 /* 3462 * This is a bit of belt-and-suspenders checking, but if we run 3463 * into a situation where the target sends back multiple block 3464 * descriptors, we might not have enough space in the buffer to 3465 * see the whole mode page. Better to return an error than 3466 * potentially access memory beyond our malloced region. 3467 */ 3468 if (error == 0) { 3469 u_int32_t data_len; 3470 3471 if (data->cdb_size == 10) { 3472 struct scsi_mode_header_10 *hdr10; 3473 3474 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3475 data_len = scsi_2btoul(hdr10->data_length); 3476 data_len += sizeof(hdr10->data_length); 3477 } else { 3478 struct scsi_mode_header_6 *hdr6; 3479 3480 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3481 data_len = hdr6->data_length; 3482 data_len += sizeof(hdr6->data_length); 3483 } 3484 3485 /* 3486 * Complain if there is more mode data available than we 3487 * allocated space for. This could potentially happen if 3488 * we miscalculated the page length for some reason, if the 3489 * drive returns multiple block descriptors, or if it sets 3490 * the data length incorrectly. 3491 */ 3492 if (data_len > data->alloc_len) { 3493 xpt_print(periph->path, "allocated modepage %d length " 3494 "%d < returned length %d\n", page, data->alloc_len, 3495 data_len); 3496 error = ENOSPC; 3497 } 3498 } 3499 return (error); 3500} 3501 3502/* 3503 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3504 * routine. See comments in cd6byteworkaround() for details. 3505 */ 3506static int 3507cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3508{ 3509 struct ccb_scsiio *csio; 3510 struct cd_softc *softc; 3511 union ccb *ccb; 3512 int cdb_size, param_len; 3513 int error; 3514 3515 softc = (struct cd_softc *)periph->softc; 3516 3517 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3518 3519 csio = &ccb->csio; 3520 3521 error = 0; 3522 3523 /* 3524 * If the data is formatted for the 10 byte version of the mode 3525 * select parameter list, we need to use the 10 byte CDB. 3526 * Otherwise, we use whatever the stored minimum command size. 3527 */ 3528 if (data->cdb_size == 10) 3529 cdb_size = data->cdb_size; 3530 else 3531 cdb_size = softc->minimum_command_size; 3532 3533 if (cdb_size >= 10) { 3534 struct scsi_mode_header_10 *mode_header; 3535 u_int32_t data_len; 3536 3537 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3538 3539 data_len = scsi_2btoul(mode_header->data_length); 3540 3541 scsi_ulto2b(0, mode_header->data_length); 3542 /* 3543 * SONY drives do not allow a mode select with a medium_type 3544 * value that has just been returned by a mode sense; use a 3545 * medium_type of 0 (Default) instead. 3546 */ 3547 mode_header->medium_type = 0; 3548 3549 /* 3550 * Pass back whatever the drive passed to us, plus the size 3551 * of the data length field. 3552 */ 3553 param_len = data_len + sizeof(mode_header->data_length); 3554 3555 } else { 3556 struct scsi_mode_header_6 *mode_header; 3557 3558 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3559 3560 param_len = mode_header->data_length + 1; 3561 3562 mode_header->data_length = 0; 3563 /* 3564 * SONY drives do not allow a mode select with a medium_type 3565 * value that has just been returned by a mode sense; use a 3566 * medium_type of 0 (Default) instead. 3567 */ 3568 mode_header->medium_type = 0; 3569 } 3570 3571 /* Don't say we've got more room than we actually allocated */ 3572 param_len = min(param_len, data->alloc_len); 3573 3574 scsi_mode_select_len(csio, 3575 /* retries */ cd_retry_count, 3576 /* cbfcnp */ cddone, 3577 /* tag_action */ MSG_SIMPLE_Q_TAG, 3578 /* scsi_page_fmt */ 1, 3579 /* save_pages */ 0, 3580 /* param_buf */ data->mode_buf, 3581 /* param_len */ param_len, 3582 /* minimum_cmd_size */ cdb_size, 3583 /* sense_len */ SSD_FULL_SIZE, 3584 /* timeout */ 50000); 3585 3586 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3587 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3588 3589 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3590 /*sense_flags*/SF_RETRY_UA); 3591 3592 xpt_release_ccb(ccb); 3593 3594 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3595 3596 return (error); 3597} 3598 3599 3600static int 3601cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3602{ 3603 struct ccb_scsiio *csio; 3604 union ccb *ccb; 3605 int error; 3606 u_int8_t cdb_len; 3607 3608 error = 0; 3609 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3610 csio = &ccb->csio; 3611 /* 3612 * Use the smallest possible command to perform the operation. 3613 */ 3614 if ((len & 0xffff0000) == 0) { 3615 /* 3616 * We can fit in a 10 byte cdb. 3617 */ 3618 struct scsi_play_10 *scsi_cmd; 3619 3620 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3621 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3622 scsi_cmd->op_code = PLAY_10; 3623 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3624 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3625 cdb_len = sizeof(*scsi_cmd); 3626 } else { 3627 struct scsi_play_12 *scsi_cmd; 3628 3629 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3630 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3631 scsi_cmd->op_code = PLAY_12; 3632 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3633 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3634 cdb_len = sizeof(*scsi_cmd); 3635 } 3636 cam_fill_csio(csio, 3637 /*retries*/ cd_retry_count, 3638 cddone, 3639 /*flags*/CAM_DIR_NONE, 3640 MSG_SIMPLE_Q_TAG, 3641 /*dataptr*/NULL, 3642 /*datalen*/0, 3643 /*sense_len*/SSD_FULL_SIZE, 3644 cdb_len, 3645 /*timeout*/50 * 1000); 3646 3647 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3648 /*sense_flags*/SF_RETRY_UA); 3649 3650 xpt_release_ccb(ccb); 3651 3652 return(error); 3653} 3654 3655static int 3656cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3657 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3658{ 3659 struct scsi_play_msf *scsi_cmd; 3660 struct ccb_scsiio *csio; 3661 union ccb *ccb; 3662 int error; 3663 3664 error = 0; 3665 3666 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3667 3668 csio = &ccb->csio; 3669 3670 cam_fill_csio(csio, 3671 /* retries */ cd_retry_count, 3672 /* cbfcnp */ cddone, 3673 /* flags */ CAM_DIR_NONE, 3674 /* tag_action */ MSG_SIMPLE_Q_TAG, 3675 /* data_ptr */ NULL, 3676 /* dxfer_len */ 0, 3677 /* sense_len */ SSD_FULL_SIZE, 3678 sizeof(struct scsi_play_msf), 3679 /* timeout */ 50000); 3680 3681 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3682 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3683 3684 scsi_cmd->op_code = PLAY_MSF; 3685 scsi_cmd->start_m = startm; 3686 scsi_cmd->start_s = starts; 3687 scsi_cmd->start_f = startf; 3688 scsi_cmd->end_m = endm; 3689 scsi_cmd->end_s = ends; 3690 scsi_cmd->end_f = endf; 3691 3692 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3693 /*sense_flags*/SF_RETRY_UA); 3694 3695 xpt_release_ccb(ccb); 3696 3697 return(error); 3698} 3699 3700 3701static int 3702cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3703 u_int32_t etrack, u_int32_t eindex) 3704{ 3705 struct scsi_play_track *scsi_cmd; 3706 struct ccb_scsiio *csio; 3707 union ccb *ccb; 3708 int error; 3709 3710 error = 0; 3711 3712 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3713 3714 csio = &ccb->csio; 3715 3716 cam_fill_csio(csio, 3717 /* retries */ cd_retry_count, 3718 /* cbfcnp */ cddone, 3719 /* flags */ CAM_DIR_NONE, 3720 /* tag_action */ MSG_SIMPLE_Q_TAG, 3721 /* data_ptr */ NULL, 3722 /* dxfer_len */ 0, 3723 /* sense_len */ SSD_FULL_SIZE, 3724 sizeof(struct scsi_play_track), 3725 /* timeout */ 50000); 3726 3727 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3728 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3729 3730 scsi_cmd->op_code = PLAY_TRACK; 3731 scsi_cmd->start_track = strack; 3732 scsi_cmd->start_index = sindex; 3733 scsi_cmd->end_track = etrack; 3734 scsi_cmd->end_index = eindex; 3735 3736 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3737 /*sense_flags*/SF_RETRY_UA); 3738 3739 xpt_release_ccb(ccb); 3740 3741 return(error); 3742} 3743 3744static int 3745cdpause(struct cam_periph *periph, u_int32_t go) 3746{ 3747 struct scsi_pause *scsi_cmd; 3748 struct ccb_scsiio *csio; 3749 union ccb *ccb; 3750 int error; 3751 3752 error = 0; 3753 3754 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3755 3756 csio = &ccb->csio; 3757 3758 cam_fill_csio(csio, 3759 /* retries */ cd_retry_count, 3760 /* cbfcnp */ cddone, 3761 /* flags */ CAM_DIR_NONE, 3762 /* tag_action */ MSG_SIMPLE_Q_TAG, 3763 /* data_ptr */ NULL, 3764 /* dxfer_len */ 0, 3765 /* sense_len */ SSD_FULL_SIZE, 3766 sizeof(struct scsi_pause), 3767 /* timeout */ 50000); 3768 3769 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3770 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3771 3772 scsi_cmd->op_code = PAUSE; 3773 scsi_cmd->resume = go; 3774 3775 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3776 /*sense_flags*/SF_RETRY_UA); 3777 3778 xpt_release_ccb(ccb); 3779 3780 return(error); 3781} 3782 3783static int 3784cdstartunit(struct cam_periph *periph, int load) 3785{ 3786 union ccb *ccb; 3787 int error; 3788 3789 error = 0; 3790 3791 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3792 3793 scsi_start_stop(&ccb->csio, 3794 /* retries */ cd_retry_count, 3795 /* cbfcnp */ cddone, 3796 /* tag_action */ MSG_SIMPLE_Q_TAG, 3797 /* start */ TRUE, 3798 /* load_eject */ load, 3799 /* immediate */ FALSE, 3800 /* sense_len */ SSD_FULL_SIZE, 3801 /* timeout */ 50000); 3802 3803 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3804 /*sense_flags*/SF_RETRY_UA); 3805 3806 xpt_release_ccb(ccb); 3807 3808 return(error); 3809} 3810 3811static int 3812cdstopunit(struct cam_periph *periph, u_int32_t eject) 3813{ 3814 union ccb *ccb; 3815 int error; 3816 3817 error = 0; 3818 3819 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3820 3821 scsi_start_stop(&ccb->csio, 3822 /* retries */ cd_retry_count, 3823 /* cbfcnp */ cddone, 3824 /* tag_action */ MSG_SIMPLE_Q_TAG, 3825 /* start */ FALSE, 3826 /* load_eject */ eject, 3827 /* immediate */ FALSE, 3828 /* sense_len */ SSD_FULL_SIZE, 3829 /* timeout */ 50000); 3830 3831 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3832 /*sense_flags*/SF_RETRY_UA); 3833 3834 xpt_release_ccb(ccb); 3835 3836 return(error); 3837} 3838 3839static int 3840cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3841{ 3842 struct scsi_set_speed *scsi_cmd; 3843 struct ccb_scsiio *csio; 3844 union ccb *ccb; 3845 int error; 3846 3847 error = 0; 3848 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3849 csio = &ccb->csio; 3850 3851 /* Preserve old behavior: units in multiples of CDROM speed */ 3852 if (rdspeed < 177) 3853 rdspeed *= 177; 3854 if (wrspeed < 177) 3855 wrspeed *= 177; 3856 3857 cam_fill_csio(csio, 3858 /* retries */ cd_retry_count, 3859 /* cbfcnp */ cddone, 3860 /* flags */ CAM_DIR_NONE, 3861 /* tag_action */ MSG_SIMPLE_Q_TAG, 3862 /* data_ptr */ NULL, 3863 /* dxfer_len */ 0, 3864 /* sense_len */ SSD_FULL_SIZE, 3865 sizeof(struct scsi_set_speed), 3866 /* timeout */ 50000); 3867 3868 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3869 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3870 3871 scsi_cmd->opcode = SET_CD_SPEED; 3872 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3873 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3874 3875 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3876 /*sense_flags*/SF_RETRY_UA); 3877 3878 xpt_release_ccb(ccb); 3879 3880 return(error); 3881} 3882 3883static int 3884cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3885{ 3886 union ccb *ccb; 3887 u_int8_t *databuf; 3888 u_int32_t lba; 3889 int error; 3890 int length; 3891 3892 error = 0; 3893 databuf = NULL; 3894 lba = 0; 3895 3896 switch (authinfo->format) { 3897 case DVD_REPORT_AGID: 3898 length = sizeof(struct scsi_report_key_data_agid); 3899 break; 3900 case DVD_REPORT_CHALLENGE: 3901 length = sizeof(struct scsi_report_key_data_challenge); 3902 break; 3903 case DVD_REPORT_KEY1: 3904 length = sizeof(struct scsi_report_key_data_key1_key2); 3905 break; 3906 case DVD_REPORT_TITLE_KEY: 3907 length = sizeof(struct scsi_report_key_data_title); 3908 /* The lba field is only set for the title key */ 3909 lba = authinfo->lba; 3910 break; 3911 case DVD_REPORT_ASF: 3912 length = sizeof(struct scsi_report_key_data_asf); 3913 break; 3914 case DVD_REPORT_RPC: 3915 length = sizeof(struct scsi_report_key_data_rpc); 3916 break; 3917 case DVD_INVALIDATE_AGID: 3918 length = 0; 3919 break; 3920 default: 3921 return (EINVAL); 3922 } 3923 3924 if (length != 0) { 3925 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3926 } else 3927 databuf = NULL; 3928 3929 cam_periph_lock(periph); 3930 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3931 3932 scsi_report_key(&ccb->csio, 3933 /* retries */ cd_retry_count, 3934 /* cbfcnp */ cddone, 3935 /* tag_action */ MSG_SIMPLE_Q_TAG, 3936 /* lba */ lba, 3937 /* agid */ authinfo->agid, 3938 /* key_format */ authinfo->format, 3939 /* data_ptr */ databuf, 3940 /* dxfer_len */ length, 3941 /* sense_len */ SSD_FULL_SIZE, 3942 /* timeout */ 50000); 3943 3944 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3945 /*sense_flags*/SF_RETRY_UA); 3946 3947 if (error != 0) 3948 goto bailout; 3949 3950 if (ccb->csio.resid != 0) { 3951 xpt_print(periph->path, "warning, residual for report key " 3952 "command is %d\n", ccb->csio.resid); 3953 } 3954 3955 switch(authinfo->format) { 3956 case DVD_REPORT_AGID: { 3957 struct scsi_report_key_data_agid *agid_data; 3958 3959 agid_data = (struct scsi_report_key_data_agid *)databuf; 3960 3961 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3962 RKD_AGID_SHIFT; 3963 break; 3964 } 3965 case DVD_REPORT_CHALLENGE: { 3966 struct scsi_report_key_data_challenge *chal_data; 3967 3968 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3969 3970 bcopy(chal_data->challenge_key, authinfo->keychal, 3971 min(sizeof(chal_data->challenge_key), 3972 sizeof(authinfo->keychal))); 3973 break; 3974 } 3975 case DVD_REPORT_KEY1: { 3976 struct scsi_report_key_data_key1_key2 *key1_data; 3977 3978 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3979 3980 bcopy(key1_data->key1, authinfo->keychal, 3981 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3982 break; 3983 } 3984 case DVD_REPORT_TITLE_KEY: { 3985 struct scsi_report_key_data_title *title_data; 3986 3987 title_data = (struct scsi_report_key_data_title *)databuf; 3988 3989 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3990 RKD_TITLE_CPM_SHIFT; 3991 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3992 RKD_TITLE_CP_SEC_SHIFT; 3993 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3994 RKD_TITLE_CMGS_SHIFT; 3995 bcopy(title_data->title_key, authinfo->keychal, 3996 min(sizeof(title_data->title_key), 3997 sizeof(authinfo->keychal))); 3998 break; 3999 } 4000 case DVD_REPORT_ASF: { 4001 struct scsi_report_key_data_asf *asf_data; 4002 4003 asf_data = (struct scsi_report_key_data_asf *)databuf; 4004 4005 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 4006 break; 4007 } 4008 case DVD_REPORT_RPC: { 4009 struct scsi_report_key_data_rpc *rpc_data; 4010 4011 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 4012 4013 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 4014 RKD_RPC_TYPE_SHIFT; 4015 authinfo->vend_rsts = 4016 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 4017 RKD_RPC_VENDOR_RESET_SHIFT; 4018 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4019 authinfo->region = rpc_data->region_mask; 4020 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4021 break; 4022 } 4023 case DVD_INVALIDATE_AGID: 4024 break; 4025 default: 4026 /* This should be impossible, since we checked above */ 4027 error = EINVAL; 4028 goto bailout; 4029 break; /* NOTREACHED */ 4030 } 4031 4032bailout: 4033 xpt_release_ccb(ccb); 4034 cam_periph_unlock(periph); 4035 4036 if (databuf != NULL) 4037 free(databuf, M_DEVBUF); 4038 4039 return(error); 4040} 4041 4042static int 4043cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4044{ 4045 union ccb *ccb; 4046 u_int8_t *databuf; 4047 int length; 4048 int error; 4049 4050 error = 0; 4051 databuf = NULL; 4052 4053 switch(authinfo->format) { 4054 case DVD_SEND_CHALLENGE: { 4055 struct scsi_report_key_data_challenge *challenge_data; 4056 4057 length = sizeof(*challenge_data); 4058 4059 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4060 4061 databuf = (u_int8_t *)challenge_data; 4062 4063 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4064 challenge_data->data_len); 4065 4066 bcopy(authinfo->keychal, challenge_data->challenge_key, 4067 min(sizeof(authinfo->keychal), 4068 sizeof(challenge_data->challenge_key))); 4069 break; 4070 } 4071 case DVD_SEND_KEY2: { 4072 struct scsi_report_key_data_key1_key2 *key2_data; 4073 4074 length = sizeof(*key2_data); 4075 4076 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4077 4078 databuf = (u_int8_t *)key2_data; 4079 4080 scsi_ulto2b(length - sizeof(key2_data->data_len), 4081 key2_data->data_len); 4082 4083 bcopy(authinfo->keychal, key2_data->key1, 4084 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4085 4086 break; 4087 } 4088 case DVD_SEND_RPC: { 4089 struct scsi_send_key_data_rpc *rpc_data; 4090 4091 length = sizeof(*rpc_data); 4092 4093 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4094 4095 databuf = (u_int8_t *)rpc_data; 4096 4097 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4098 rpc_data->data_len); 4099 4100 rpc_data->region_code = authinfo->region; 4101 break; 4102 } 4103 default: 4104 return (EINVAL); 4105 } 4106 4107 cam_periph_lock(periph); 4108 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4109 4110 scsi_send_key(&ccb->csio, 4111 /* retries */ cd_retry_count, 4112 /* cbfcnp */ cddone, 4113 /* tag_action */ MSG_SIMPLE_Q_TAG, 4114 /* agid */ authinfo->agid, 4115 /* key_format */ authinfo->format, 4116 /* data_ptr */ databuf, 4117 /* dxfer_len */ length, 4118 /* sense_len */ SSD_FULL_SIZE, 4119 /* timeout */ 50000); 4120 4121 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4122 /*sense_flags*/SF_RETRY_UA); 4123 4124 xpt_release_ccb(ccb); 4125 cam_periph_unlock(periph); 4126 4127 if (databuf != NULL) 4128 free(databuf, M_DEVBUF); 4129 4130 return(error); 4131} 4132 4133static int 4134cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4135{ 4136 union ccb *ccb; 4137 u_int8_t *databuf; 4138 u_int32_t address; 4139 int error; 4140 int length; 4141 4142 error = 0; 4143 databuf = NULL; 4144 /* The address is reserved for many of the formats */ 4145 address = 0; 4146 4147 switch(dvdstruct->format) { 4148 case DVD_STRUCT_PHYSICAL: 4149 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4150 break; 4151 case DVD_STRUCT_COPYRIGHT: 4152 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4153 break; 4154 case DVD_STRUCT_DISCKEY: 4155 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4156 break; 4157 case DVD_STRUCT_BCA: 4158 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4159 break; 4160 case DVD_STRUCT_MANUFACT: 4161 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4162 break; 4163 case DVD_STRUCT_CMI: 4164 return (ENODEV); 4165 case DVD_STRUCT_PROTDISCID: 4166 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4167 break; 4168 case DVD_STRUCT_DISCKEYBLOCK: 4169 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4170 break; 4171 case DVD_STRUCT_DDS: 4172 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4173 break; 4174 case DVD_STRUCT_MEDIUM_STAT: 4175 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4176 break; 4177 case DVD_STRUCT_SPARE_AREA: 4178 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4179 break; 4180 case DVD_STRUCT_RMD_LAST: 4181 return (ENODEV); 4182 case DVD_STRUCT_RMD_RMA: 4183 return (ENODEV); 4184 case DVD_STRUCT_PRERECORDED: 4185 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4186 break; 4187 case DVD_STRUCT_UNIQUEID: 4188 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4189 break; 4190 case DVD_STRUCT_DCB: 4191 return (ENODEV); 4192 case DVD_STRUCT_LIST: 4193 /* 4194 * This is the maximum allocation length for the READ DVD 4195 * STRUCTURE command. There's nothing in the MMC3 spec 4196 * that indicates a limit in the amount of data that can 4197 * be returned from this call, other than the limits 4198 * imposed by the 2-byte length variables. 4199 */ 4200 length = 65535; 4201 break; 4202 default: 4203 return (EINVAL); 4204 } 4205 4206 if (length != 0) { 4207 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4208 } else 4209 databuf = NULL; 4210 4211 cam_periph_lock(periph); 4212 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4213 4214 scsi_read_dvd_structure(&ccb->csio, 4215 /* retries */ cd_retry_count, 4216 /* cbfcnp */ cddone, 4217 /* tag_action */ MSG_SIMPLE_Q_TAG, 4218 /* lba */ address, 4219 /* layer_number */ dvdstruct->layer_num, 4220 /* key_format */ dvdstruct->format, 4221 /* agid */ dvdstruct->agid, 4222 /* data_ptr */ databuf, 4223 /* dxfer_len */ length, 4224 /* sense_len */ SSD_FULL_SIZE, 4225 /* timeout */ 50000); 4226 4227 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4228 /*sense_flags*/SF_RETRY_UA); 4229 4230 if (error != 0) 4231 goto bailout; 4232 4233 switch(dvdstruct->format) { 4234 case DVD_STRUCT_PHYSICAL: { 4235 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4236 struct dvd_layer *outlayer; 4237 struct scsi_read_dvd_struct_data_physical *phys_data; 4238 4239 phys_data = 4240 (struct scsi_read_dvd_struct_data_physical *)databuf; 4241 inlayer = &phys_data->layer_desc; 4242 outlayer = (struct dvd_layer *)&dvdstruct->data; 4243 4244 dvdstruct->length = sizeof(*inlayer); 4245 4246 outlayer->book_type = (inlayer->book_type_version & 4247 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4248 outlayer->book_version = (inlayer->book_type_version & 4249 RDSD_BOOK_VERSION_MASK); 4250 outlayer->disc_size = (inlayer->disc_size_max_rate & 4251 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4252 outlayer->max_rate = (inlayer->disc_size_max_rate & 4253 RDSD_MAX_RATE_MASK); 4254 outlayer->nlayers = (inlayer->layer_info & 4255 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4256 outlayer->track_path = (inlayer->layer_info & 4257 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4258 outlayer->layer_type = (inlayer->layer_info & 4259 RDSD_LAYER_TYPE_MASK); 4260 outlayer->linear_density = (inlayer->density & 4261 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4262 outlayer->track_density = (inlayer->density & 4263 RDSD_TRACK_DENSITY_MASK); 4264 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4265 RDSD_BCA_SHIFT; 4266 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4267 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4268 outlayer->end_sector_l0 = 4269 scsi_3btoul(inlayer->end_sector_layer0); 4270 break; 4271 } 4272 case DVD_STRUCT_COPYRIGHT: { 4273 struct scsi_read_dvd_struct_data_copyright *copy_data; 4274 4275 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4276 databuf; 4277 4278 dvdstruct->cpst = copy_data->cps_type; 4279 dvdstruct->rmi = copy_data->region_info; 4280 dvdstruct->length = 0; 4281 4282 break; 4283 } 4284 default: 4285 /* 4286 * Tell the user what the overall length is, no matter 4287 * what we can actually fit in the data buffer. 4288 */ 4289 dvdstruct->length = length - ccb->csio.resid - 4290 sizeof(struct scsi_read_dvd_struct_data_header); 4291 4292 /* 4293 * But only actually copy out the smaller of what we read 4294 * in or what the structure can take. 4295 */ 4296 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4297 dvdstruct->data, 4298 min(sizeof(dvdstruct->data), dvdstruct->length)); 4299 break; 4300 } 4301 4302bailout: 4303 xpt_release_ccb(ccb); 4304 cam_periph_unlock(periph); 4305 4306 if (databuf != NULL) 4307 free(databuf, M_DEVBUF); 4308 4309 return(error); 4310} 4311 4312void 4313scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4314 void (*cbfcnp)(struct cam_periph *, union ccb *), 4315 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4316 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4317 u_int8_t sense_len, u_int32_t timeout) 4318{ 4319 struct scsi_report_key *scsi_cmd; 4320 4321 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4322 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4323 scsi_cmd->opcode = REPORT_KEY; 4324 scsi_ulto4b(lba, scsi_cmd->lba); 4325 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4326 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4327 (key_format & RK_KF_KEYFORMAT_MASK); 4328 4329 cam_fill_csio(csio, 4330 retries, 4331 cbfcnp, 4332 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4333 tag_action, 4334 /*data_ptr*/ data_ptr, 4335 /*dxfer_len*/ dxfer_len, 4336 sense_len, 4337 sizeof(*scsi_cmd), 4338 timeout); 4339} 4340 4341void 4342scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4343 void (*cbfcnp)(struct cam_periph *, union ccb *), 4344 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4345 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4346 u_int32_t timeout) 4347{ 4348 struct scsi_send_key *scsi_cmd; 4349 4350 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4351 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4352 scsi_cmd->opcode = SEND_KEY; 4353 4354 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4355 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4356 (key_format & RK_KF_KEYFORMAT_MASK); 4357 4358 cam_fill_csio(csio, 4359 retries, 4360 cbfcnp, 4361 /*flags*/ CAM_DIR_OUT, 4362 tag_action, 4363 /*data_ptr*/ data_ptr, 4364 /*dxfer_len*/ dxfer_len, 4365 sense_len, 4366 sizeof(*scsi_cmd), 4367 timeout); 4368} 4369 4370 4371void 4372scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4373 void (*cbfcnp)(struct cam_periph *, union ccb *), 4374 u_int8_t tag_action, u_int32_t address, 4375 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4376 u_int8_t *data_ptr, u_int32_t dxfer_len, 4377 u_int8_t sense_len, u_int32_t timeout) 4378{ 4379 struct scsi_read_dvd_structure *scsi_cmd; 4380 4381 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4382 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4383 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4384 4385 scsi_ulto4b(address, scsi_cmd->address); 4386 scsi_cmd->layer_number = layer_number; 4387 scsi_cmd->format = format; 4388 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4389 /* The AGID is the top two bits of this byte */ 4390 scsi_cmd->agid = agid << 6; 4391 4392 cam_fill_csio(csio, 4393 retries, 4394 cbfcnp, 4395 /*flags*/ CAM_DIR_IN, 4396 tag_action, 4397 /*data_ptr*/ data_ptr, 4398 /*dxfer_len*/ dxfer_len, 4399 sense_len, 4400 sizeof(*scsi_cmd), 4401 timeout); 4402} 4403