scsi_cd.c revision 249152
1/*- 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/*- 29 * Portions of this driver taken from the original FreeBSD cd driver. 30 * Written by Julian Elischer (julian@tfs.com) 31 * for TRW Financial Systems for use under the MACH(2.5) operating system. 32 * 33 * TRW Financial Systems, in accordance with their agreement with Carnegie 34 * Mellon University, makes this software available to CMU to distribute 35 * or use in any manner that they see fit as long as this message is kept with 36 * the software. For this reason TFS also grants any other persons or 37 * organisations permission to use or modify this software. 38 * 39 * TFS supplies this software to be publicly redistributed 40 * on the understanding that TFS is not responsible for the correct 41 * functioning of this software in any circumstances. 42 * 43 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 44 * 45 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 46 */ 47 48#include <sys/cdefs.h> 49__FBSDID("$FreeBSD: stable/9/sys/cam/scsi/scsi_cd.c 249152 2013-04-05 11:41:56Z 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 95typedef enum { 96 CD_FLAG_INVALID = 0x0001, 97 CD_FLAG_NEW_DISC = 0x0002, 98 CD_FLAG_DISC_LOCKED = 0x0004, 99 CD_FLAG_DISC_REMOVABLE = 0x0008, 100 CD_FLAG_SAW_MEDIA = 0x0010, 101 CD_FLAG_CHANGER = 0x0040, 102 CD_FLAG_ACTIVE = 0x0080, 103 CD_FLAG_SCHED_ON_COMP = 0x0100, 104 CD_FLAG_RETRY_UA = 0x0200, 105 CD_FLAG_VALID_MEDIA = 0x0400, 106 CD_FLAG_VALID_TOC = 0x0800, 107 CD_FLAG_SCTX_INIT = 0x1000 108} cd_flags; 109 110typedef enum { 111 CD_CCB_PROBE = 0x01, 112 CD_CCB_BUFFER_IO = 0x02, 113 CD_CCB_WAITING = 0x03, 114 CD_CCB_TUR = 0x04, 115 CD_CCB_TYPE_MASK = 0x0F, 116 CD_CCB_RETRY_UA = 0x10 117} cd_ccb_state; 118 119typedef enum { 120 CHANGER_TIMEOUT_SCHED = 0x01, 121 CHANGER_SHORT_TMOUT_SCHED = 0x02, 122 CHANGER_MANUAL_CALL = 0x04, 123 CHANGER_NEED_TIMEOUT = 0x08 124} cd_changer_flags; 125 126#define ccb_state ppriv_field0 127#define ccb_bp ppriv_ptr1 128 129struct cd_tocdata { 130 struct ioc_toc_header header; 131 struct cd_toc_entry entries[100]; 132}; 133 134struct cd_toc_single { 135 struct ioc_toc_header header; 136 struct cd_toc_entry entry; 137}; 138 139typedef enum { 140 CD_STATE_PROBE, 141 CD_STATE_NORMAL 142} cd_state; 143 144struct cd_softc { 145 cam_pinfo pinfo; 146 cd_state state; 147 volatile cd_flags flags; 148 struct bio_queue_head bio_queue; 149 LIST_HEAD(, ccb_hdr) pending_ccbs; 150 struct cd_params params; 151 union ccb saved_ccb; 152 cd_quirks quirks; 153 STAILQ_ENTRY(cd_softc) changer_links; 154 struct cdchanger *changer; 155 int bufs_left; 156 struct cam_periph *periph; 157 int minimum_command_size; 158 int outstanding_cmds; 159 int tur; 160 struct task sysctl_task; 161 struct sysctl_ctx_list sysctl_ctx; 162 struct sysctl_oid *sysctl_tree; 163 STAILQ_HEAD(, cd_mode_params) mode_queue; 164 struct cd_tocdata toc; 165 struct disk *disk; 166 struct callout mediapoll_c; 167}; 168 169struct cd_page_sizes { 170 int page; 171 int page_size; 172}; 173 174static struct cd_page_sizes cd_page_size_table[] = 175{ 176 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 177}; 178 179struct cd_quirk_entry { 180 struct scsi_inquiry_pattern inq_pat; 181 cd_quirks quirks; 182}; 183 184/* 185 * The changer quirk entries aren't strictly necessary. Basically, what 186 * they do is tell cdregister() up front that a device is a changer. 187 * Otherwise, it will figure that fact out once it sees a LUN on the device 188 * that is greater than 0. If it is known up front that a device is a changer, 189 * all I/O to the device will go through the changer scheduling routines, as 190 * opposed to the "normal" CD code. 191 * 192 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 193 * your device hangs when it gets a 10 byte command. Adding a quirk just 194 * to get rid of the informative diagnostic message is not acceptable. All 195 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 196 * referenced in a comment along with the quirk) , and must be approved by 197 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 198 * be removed until the submitter can explain why they are needed. 199 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 200 * when the CAM_NEW_TRAN_CODE work is done. 201 */ 202static struct cd_quirk_entry cd_quirk_table[] = 203{ 204 { 205 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 206 /*quirks*/ CD_Q_CHANGER 207 }, 208 { 209 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 210 "*"}, /* quirks */ CD_Q_CHANGER 211 }, 212 { 213 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 214 /* quirks */ CD_Q_CHANGER 215 }, 216 { 217 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 218 /* quirks */ CD_Q_BCD_TRACKS 219 } 220}; 221 222static disk_open_t cdopen; 223static disk_close_t cdclose; 224static disk_ioctl_t cdioctl; 225static disk_strategy_t cdstrategy; 226 227static periph_init_t cdinit; 228static periph_ctor_t cdregister; 229static periph_dtor_t cdcleanup; 230static periph_start_t cdstart; 231static periph_oninv_t cdoninvalidate; 232static void cdasync(void *callback_arg, u_int32_t code, 233 struct cam_path *path, void *arg); 234static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 235static void cdshorttimeout(void *arg); 236static void cdschedule(struct cam_periph *periph, int priority); 237static void cdrunchangerqueue(void *arg); 238static void cdchangerschedule(struct cd_softc *softc); 239static int cdrunccb(union ccb *ccb, 240 int (*error_routine)(union ccb *ccb, 241 u_int32_t cam_flags, 242 u_int32_t sense_flags), 243 u_int32_t cam_flags, u_int32_t sense_flags); 244static union ccb *cdgetccb(struct cam_periph *periph, 245 u_int32_t priority); 246static void cddone(struct cam_periph *periph, 247 union ccb *start_ccb); 248static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 249static int cdgetpagesize(int page_num); 250static void cdprevent(struct cam_periph *periph, int action); 251static int cdcheckmedia(struct cam_periph *periph); 252static int cdsize(struct cam_periph *periph, u_int32_t *size); 253static int cd6byteworkaround(union ccb *ccb); 254static int cderror(union ccb *ccb, u_int32_t cam_flags, 255 u_int32_t sense_flags); 256static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 257 u_int32_t start, u_int8_t *data, 258 u_int32_t len, u_int32_t sense_flags); 259static int cdgetmode(struct cam_periph *periph, 260 struct cd_mode_params *data, u_int32_t page); 261static int cdsetmode(struct cam_periph *periph, 262 struct cd_mode_params *data); 263static int cdplay(struct cam_periph *periph, u_int32_t blk, 264 u_int32_t len); 265static int cdreadsubchannel(struct cam_periph *periph, 266 u_int32_t mode, u_int32_t format, 267 int track, 268 struct cd_sub_channel_info *data, 269 u_int32_t len); 270static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 271 u_int32_t starts, u_int32_t startf, 272 u_int32_t endm, u_int32_t ends, 273 u_int32_t endf); 274static int cdplaytracks(struct cam_periph *periph, 275 u_int32_t strack, u_int32_t sindex, 276 u_int32_t etrack, u_int32_t eindex); 277static int cdpause(struct cam_periph *periph, u_int32_t go); 278static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 279static int cdstartunit(struct cam_periph *periph, int load); 280static int cdsetspeed(struct cam_periph *periph, 281 u_int32_t rdspeed, u_int32_t wrspeed); 282static int cdreportkey(struct cam_periph *periph, 283 struct dvd_authinfo *authinfo); 284static int cdsendkey(struct cam_periph *periph, 285 struct dvd_authinfo *authinfo); 286static int cdreaddvdstructure(struct cam_periph *periph, 287 struct dvd_struct *dvdstruct); 288static timeout_t cdmediapoll; 289 290static struct periph_driver cddriver = 291{ 292 cdinit, "cd", 293 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 294}; 295 296PERIPHDRIVER_DECLARE(cd, cddriver); 297 298#ifndef CD_DEFAULT_POLL_PERIOD 299#define CD_DEFAULT_POLL_PERIOD 3 300#endif 301#ifndef CD_DEFAULT_RETRY 302#define CD_DEFAULT_RETRY 4 303#endif 304#ifndef CD_DEFAULT_TIMEOUT 305#define CD_DEFAULT_TIMEOUT 30000 306#endif 307#ifndef CHANGER_MIN_BUSY_SECONDS 308#define CHANGER_MIN_BUSY_SECONDS 5 309#endif 310#ifndef CHANGER_MAX_BUSY_SECONDS 311#define CHANGER_MAX_BUSY_SECONDS 15 312#endif 313 314static int cd_poll_period = CD_DEFAULT_POLL_PERIOD; 315static int cd_retry_count = CD_DEFAULT_RETRY; 316static int cd_timeout = CD_DEFAULT_TIMEOUT; 317static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 318static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 319 320static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 321static SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, 322 "CD Changer"); 323SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RW, 324 &cd_poll_period, 0, "Media polling period in seconds"); 325TUNABLE_INT("kern.cam.cd.poll_period", &cd_poll_period); 326SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, 327 &cd_retry_count, 0, "Normal I/O retry count"); 328TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); 329SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RW, 330 &cd_timeout, 0, "Timeout, in us, for read operations"); 331TUNABLE_INT("kern.cam.cd.timeout", &cd_timeout); 332SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 333 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 334TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 335SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 336 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 337TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 338 339struct cdchanger { 340 path_id_t path_id; 341 target_id_t target_id; 342 int num_devices; 343 struct camq devq; 344 struct timeval start_time; 345 struct cd_softc *cur_device; 346 struct callout short_handle; 347 struct callout long_handle; 348 volatile cd_changer_flags flags; 349 STAILQ_ENTRY(cdchanger) changer_links; 350 STAILQ_HEAD(chdevlist, cd_softc) chluns; 351}; 352 353static struct mtx changerq_mtx; 354static STAILQ_HEAD(changerlist, cdchanger) changerq; 355static int num_changers; 356 357static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 358 359static void 360cdinit(void) 361{ 362 cam_status status; 363 364 mtx_init(&changerq_mtx, "cdchangerq", "SCSI CD Changer List", MTX_DEF); 365 STAILQ_INIT(&changerq); 366 367 /* 368 * Install a global async callback. This callback will 369 * receive async callbacks like "new device found". 370 */ 371 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 372 373 if (status != CAM_REQ_CMP) { 374 printf("cd: Failed to attach master async callback " 375 "due to status 0x%x!\n", status); 376 } 377} 378 379/* 380 * Callback from GEOM, called when it has finished cleaning up its 381 * resources. 382 */ 383static void 384cddiskgonecb(struct disk *dp) 385{ 386 struct cam_periph *periph; 387 388 periph = (struct cam_periph *)dp->d_drv1; 389 390 cam_periph_release(periph); 391} 392 393static void 394cdoninvalidate(struct cam_periph *periph) 395{ 396 struct cd_softc *softc; 397 398 softc = (struct cd_softc *)periph->softc; 399 400 /* 401 * De-register any async callbacks. 402 */ 403 xpt_register_async(0, cdasync, periph, periph->path); 404 405 softc->flags |= CD_FLAG_INVALID; 406 407 /* 408 * Return all queued I/O with ENXIO. 409 * XXX Handle any transactions queued to the card 410 * with XPT_ABORT_CCB. 411 */ 412 bioq_flush(&softc->bio_queue, NULL, ENXIO); 413 414 /* 415 * If this device is part of a changer, and it was scheduled 416 * to run, remove it from the run queue since we just nuked 417 * all of its scheduled I/O. 418 */ 419 if ((softc->flags & CD_FLAG_CHANGER) 420 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 421 camq_remove(&softc->changer->devq, softc->pinfo.index); 422 423 disk_gone(softc->disk); 424 xpt_print(periph->path, "lost device, %d refs\n", periph->refcount); 425} 426 427static void 428cdcleanup(struct cam_periph *periph) 429{ 430 struct cd_softc *softc; 431 432 softc = (struct cd_softc *)periph->softc; 433 434 xpt_print(periph->path, "removing device entry\n"); 435 436 /* 437 * In the queued, non-active case, the device in question 438 * has already been removed from the changer run queue. Since this 439 * device is active, we need to de-activate it, and schedule 440 * another device to run. (if there is another one to run) 441 */ 442 if ((softc->flags & CD_FLAG_CHANGER) 443 && (softc->flags & CD_FLAG_ACTIVE)) { 444 445 /* 446 * The purpose of the short timeout is soley to determine 447 * whether the current device has finished or not. Well, 448 * since we're removing the active device, we know that it 449 * is finished. So, get rid of the short timeout. 450 * Otherwise, if we're in the time period before the short 451 * timeout fires, and there are no other devices in the 452 * queue to run, there won't be any other device put in the 453 * active slot. i.e., when we call cdrunchangerqueue() 454 * below, it won't do anything. Then, when the short 455 * timeout fires, it'll look at the "current device", which 456 * we are free below, and possibly panic the kernel on a 457 * bogus pointer reference. 458 * 459 * The long timeout doesn't really matter, since we 460 * decrement the qfrozen_cnt to indicate that there is 461 * nothing in the active slot now. Therefore, there won't 462 * be any bogus pointer references there. 463 */ 464 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 465 callout_stop(&softc->changer->short_handle); 466 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 467 } 468 softc->changer->devq.qfrozen_cnt[0]--; 469 softc->changer->flags |= CHANGER_MANUAL_CALL; 470 cdrunchangerqueue(softc->changer); 471 } 472 473 /* 474 * If we're removing the last device on the changer, go ahead and 475 * remove the changer device structure. 476 */ 477 if ((softc->flags & CD_FLAG_CHANGER) 478 && (--softc->changer->num_devices == 0)) { 479 480 /* 481 * Theoretically, there shouldn't be any timeouts left, but 482 * I'm not completely sure that that will be the case. So, 483 * it won't hurt to check and see if there are any left. 484 */ 485 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 486 callout_stop(&softc->changer->long_handle); 487 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 488 } 489 490 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 491 callout_stop(&softc->changer->short_handle); 492 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 493 } 494 495 mtx_lock(&changerq_mtx); 496 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 497 changer_links); 498 num_changers--; 499 mtx_unlock(&changerq_mtx); 500 xpt_print(periph->path, "removing changer entry\n"); 501 free(softc->changer, M_DEVBUF); 502 } 503 cam_periph_unlock(periph); 504 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 505 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 506 xpt_print(periph->path, "can't remove sysctl context\n"); 507 } 508 509 callout_drain(&softc->mediapoll_c); 510 disk_destroy(softc->disk); 511 free(softc, M_DEVBUF); 512 cam_periph_lock(periph); 513} 514 515static void 516cdasync(void *callback_arg, u_int32_t code, 517 struct cam_path *path, void *arg) 518{ 519 struct cam_periph *periph; 520 struct cd_softc *softc; 521 522 periph = (struct cam_periph *)callback_arg; 523 switch (code) { 524 case AC_FOUND_DEVICE: 525 { 526 struct ccb_getdev *cgd; 527 cam_status status; 528 529 cgd = (struct ccb_getdev *)arg; 530 if (cgd == NULL) 531 break; 532 533 if (cgd->protocol != PROTO_SCSI) 534 break; 535 536 if (SID_TYPE(&cgd->inq_data) != T_CDROM 537 && SID_TYPE(&cgd->inq_data) != T_WORM) 538 break; 539 540 /* 541 * Allocate a peripheral instance for 542 * this device and start the probe 543 * process. 544 */ 545 status = cam_periph_alloc(cdregister, cdoninvalidate, 546 cdcleanup, cdstart, 547 "cd", CAM_PERIPH_BIO, 548 cgd->ccb_h.path, cdasync, 549 AC_FOUND_DEVICE, cgd); 550 551 if (status != CAM_REQ_CMP 552 && status != CAM_REQ_INPROG) 553 printf("cdasync: Unable to attach new device " 554 "due to status 0x%x\n", status); 555 556 break; 557 } 558 case AC_UNIT_ATTENTION: 559 { 560 union ccb *ccb; 561 int error_code, sense_key, asc, ascq; 562 563 softc = (struct cd_softc *)periph->softc; 564 ccb = (union ccb *)arg; 565 566 /* 567 * Handle all media change UNIT ATTENTIONs except 568 * our own, as they will be handled by cderror(). 569 */ 570 if (xpt_path_periph(ccb->ccb_h.path) != periph && 571 scsi_extract_sense_ccb(ccb, 572 &error_code, &sense_key, &asc, &ascq)) { 573 if (asc == 0x28 && ascq == 0x00) 574 disk_media_changed(softc->disk, M_NOWAIT); 575 } 576 cam_periph_async(periph, code, path, arg); 577 break; 578 } 579 case AC_SCSI_AEN: 580 softc = (struct cd_softc *)periph->softc; 581 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 582 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 583 softc->tur = 1; 584 xpt_schedule(periph, CAM_PRIORITY_DEV); 585 } 586 } 587 /* FALLTHROUGH */ 588 case AC_SENT_BDR: 589 case AC_BUS_RESET: 590 { 591 struct ccb_hdr *ccbh; 592 593 softc = (struct cd_softc *)periph->softc; 594 /* 595 * Don't fail on the expected unit attention 596 * that will occur. 597 */ 598 softc->flags |= CD_FLAG_RETRY_UA; 599 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 600 ccbh->ccb_state |= CD_CCB_RETRY_UA; 601 /* FALLTHROUGH */ 602 } 603 default: 604 cam_periph_async(periph, code, path, arg); 605 break; 606 } 607} 608 609static void 610cdsysctlinit(void *context, int pending) 611{ 612 struct cam_periph *periph; 613 struct cd_softc *softc; 614 char tmpstr[80], tmpstr2[80]; 615 616 periph = (struct cam_periph *)context; 617 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 618 return; 619 620 softc = (struct cd_softc *)periph->softc; 621 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 622 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 623 624 sysctl_ctx_init(&softc->sysctl_ctx); 625 softc->flags |= CD_FLAG_SCTX_INIT; 626 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 627 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 628 tmpstr2, CTLFLAG_RD, 0, tmpstr); 629 630 if (softc->sysctl_tree == NULL) { 631 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 632 cam_periph_release(periph); 633 return; 634 } 635 636 /* 637 * Now register the sysctl handler, so the user can the value on 638 * the fly. 639 */ 640 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 641 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 642 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 643 "Minimum CDB size"); 644 645 cam_periph_release(periph); 646} 647 648/* 649 * We have a handler function for this so we can check the values when the 650 * user sets them, instead of every time we look at them. 651 */ 652static int 653cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 654{ 655 int error, value; 656 657 value = *(int *)arg1; 658 659 error = sysctl_handle_int(oidp, &value, 0, req); 660 661 if ((error != 0) 662 || (req->newptr == NULL)) 663 return (error); 664 665 /* 666 * The only real values we can have here are 6 or 10. I don't 667 * really forsee having 12 be an option at any time in the future. 668 * So if the user sets something less than or equal to 6, we'll set 669 * it to 6. If he sets something greater than 6, we'll set it to 10. 670 * 671 * I suppose we could just return an error here for the wrong values, 672 * but I don't think it's necessary to do so, as long as we can 673 * determine the user's intent without too much trouble. 674 */ 675 if (value < 6) 676 value = 6; 677 else if (value > 6) 678 value = 10; 679 680 *(int *)arg1 = value; 681 682 return (0); 683} 684 685static cam_status 686cdregister(struct cam_periph *periph, void *arg) 687{ 688 struct cd_softc *softc; 689 struct ccb_pathinq cpi; 690 struct ccb_getdev *cgd; 691 char tmpstr[80]; 692 caddr_t match; 693 694 cgd = (struct ccb_getdev *)arg; 695 if (cgd == NULL) { 696 printf("cdregister: no getdev CCB, can't register device\n"); 697 return(CAM_REQ_CMP_ERR); 698 } 699 700 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 701 M_NOWAIT | M_ZERO); 702 if (softc == NULL) { 703 printf("cdregister: Unable to probe new device. " 704 "Unable to allocate softc\n"); 705 return(CAM_REQ_CMP_ERR); 706 } 707 708 LIST_INIT(&softc->pending_ccbs); 709 STAILQ_INIT(&softc->mode_queue); 710 softc->state = CD_STATE_PROBE; 711 bioq_init(&softc->bio_queue); 712 if (SID_IS_REMOVABLE(&cgd->inq_data)) 713 softc->flags |= CD_FLAG_DISC_REMOVABLE; 714 715 periph->softc = softc; 716 softc->periph = periph; 717 718 /* 719 * See if this device has any quirks. 720 */ 721 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 722 (caddr_t)cd_quirk_table, 723 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 724 sizeof(*cd_quirk_table), scsi_inquiry_match); 725 726 if (match != NULL) 727 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 728 else 729 softc->quirks = CD_Q_NONE; 730 731 /* Check if the SIM does not want 6 byte commands */ 732 bzero(&cpi, sizeof(cpi)); 733 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 734 cpi.ccb_h.func_code = XPT_PATH_INQ; 735 xpt_action((union ccb *)&cpi); 736 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 737 softc->quirks |= CD_Q_10_BYTE_ONLY; 738 739 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 740 741 /* The default is 6 byte commands, unless quirked otherwise */ 742 if (softc->quirks & CD_Q_10_BYTE_ONLY) 743 softc->minimum_command_size = 10; 744 else 745 softc->minimum_command_size = 6; 746 747 /* 748 * Refcount and block open attempts until we are setup 749 * Can't block 750 */ 751 (void)cam_periph_hold(periph, PRIBIO); 752 cam_periph_unlock(periph); 753 /* 754 * Load the user's default, if any. 755 */ 756 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 757 periph->unit_number); 758 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 759 760 /* 6 and 10 are the only permissible values here. */ 761 if (softc->minimum_command_size < 6) 762 softc->minimum_command_size = 6; 763 else if (softc->minimum_command_size > 6) 764 softc->minimum_command_size = 10; 765 766 /* 767 * We need to register the statistics structure for this device, 768 * but we don't have the blocksize yet for it. So, we register 769 * the structure and indicate that we don't have the blocksize 770 * yet. Unlike other SCSI peripheral drivers, we explicitly set 771 * the device type here to be CDROM, rather than just ORing in 772 * the device type. This is because this driver can attach to either 773 * CDROM or WORM devices, and we want this peripheral driver to 774 * show up in the devstat list as a CD peripheral driver, not a 775 * WORM peripheral driver. WORM drives will also have the WORM 776 * driver attached to them. 777 */ 778 softc->disk = disk_alloc(); 779 softc->disk->d_devstat = devstat_new_entry("cd", 780 periph->unit_number, 0, 781 DEVSTAT_BS_UNAVAILABLE, 782 DEVSTAT_TYPE_CDROM | 783 XPORT_DEVSTAT_TYPE(cpi.transport), 784 DEVSTAT_PRIORITY_CD); 785 softc->disk->d_open = cdopen; 786 softc->disk->d_close = cdclose; 787 softc->disk->d_strategy = cdstrategy; 788 softc->disk->d_gone = cddiskgonecb; 789 softc->disk->d_ioctl = cdioctl; 790 softc->disk->d_name = "cd"; 791 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 792 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 793 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 794 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 795 cgd->inq_data.product, sizeof(cgd->inq_data.product), 796 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 797 softc->disk->d_unit = periph->unit_number; 798 softc->disk->d_drv1 = periph; 799 if (cpi.maxio == 0) 800 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 801 else if (cpi.maxio > MAXPHYS) 802 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 803 else 804 softc->disk->d_maxsize = cpi.maxio; 805 softc->disk->d_flags = 0; 806 softc->disk->d_hba_vendor = cpi.hba_vendor; 807 softc->disk->d_hba_device = cpi.hba_device; 808 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 809 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 810 811 /* 812 * Acquire a reference to the periph before we register with GEOM. 813 * We'll release this reference once GEOM calls us back (via 814 * dadiskgonecb()) telling us that our provider has been freed. 815 */ 816 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 817 xpt_print(periph->path, "%s: lost periph during " 818 "registration!\n", __func__); 819 cam_periph_lock(periph); 820 return (CAM_REQ_CMP_ERR); 821 } 822 823 disk_create(softc->disk, DISK_VERSION); 824 cam_periph_lock(periph); 825 826 /* 827 * Add an async callback so that we get 828 * notified if this device goes away. 829 */ 830 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 831 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 832 833 /* 834 * If the target lun is greater than 0, we most likely have a CD 835 * changer device. Check the quirk entries as well, though, just 836 * in case someone has a CD tower with one lun per drive or 837 * something like that. Also, if we know up front that a 838 * particular device is a changer, we can mark it as such starting 839 * with lun 0, instead of lun 1. It shouldn't be necessary to have 840 * a quirk entry to define something as a changer, however. 841 */ 842 if (((cgd->ccb_h.target_lun > 0) 843 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 844 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 845 struct cdchanger *nchanger; 846 struct cam_periph *nperiph; 847 struct cam_path *path; 848 cam_status status; 849 int found; 850 851 /* Set the changer flag in the current device's softc */ 852 softc->flags |= CD_FLAG_CHANGER; 853 854 /* 855 * Now, look around for an existing changer device with the 856 * same path and target ID as the current device. 857 */ 858 mtx_lock(&changerq_mtx); 859 for (found = 0, 860 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 861 nchanger != NULL; 862 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 863 if ((nchanger->path_id == cgd->ccb_h.path_id) 864 && (nchanger->target_id == cgd->ccb_h.target_id)) { 865 found = 1; 866 break; 867 } 868 } 869 mtx_unlock(&changerq_mtx); 870 871 /* 872 * If we found a matching entry, just add this device to 873 * the list of devices on this changer. 874 */ 875 if (found == 1) { 876 struct chdevlist *chlunhead; 877 878 chlunhead = &nchanger->chluns; 879 880 /* 881 * XXX KDM look at consolidating this code with the 882 * code below in a separate function. 883 */ 884 885 /* 886 * Create a path with lun id 0, and see if we can 887 * find a matching device 888 */ 889 status = xpt_create_path(&path, /*periph*/ periph, 890 cgd->ccb_h.path_id, 891 cgd->ccb_h.target_id, 0); 892 893 if ((status == CAM_REQ_CMP) 894 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 895 struct cd_softc *nsoftc; 896 897 nsoftc = (struct cd_softc *)nperiph->softc; 898 899 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 900 nsoftc->flags |= CD_FLAG_CHANGER; 901 nchanger->num_devices++; 902 if (camq_resize(&nchanger->devq, 903 nchanger->num_devices)!=CAM_REQ_CMP){ 904 printf("cdregister: " 905 "camq_resize " 906 "failed, changer " 907 "support may " 908 "be messed up\n"); 909 } 910 nsoftc->changer = nchanger; 911 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 912 913 STAILQ_INSERT_TAIL(&nchanger->chluns, 914 nsoftc,changer_links); 915 } 916 xpt_free_path(path); 917 } else if (status == CAM_REQ_CMP) 918 xpt_free_path(path); 919 else { 920 printf("cdregister: unable to allocate path\n" 921 "cdregister: changer support may be " 922 "broken\n"); 923 } 924 925 nchanger->num_devices++; 926 927 softc->changer = nchanger; 928 softc->pinfo.index = CAM_UNQUEUED_INDEX; 929 930 if (camq_resize(&nchanger->devq, 931 nchanger->num_devices) != CAM_REQ_CMP) { 932 printf("cdregister: camq_resize " 933 "failed, changer support may " 934 "be messed up\n"); 935 } 936 937 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 938 } 939 /* 940 * In this case, we don't already have an entry for this 941 * particular changer, so we need to create one, add it to 942 * the queue, and queue this device on the list for this 943 * changer. Before we queue this device, however, we need 944 * to search for lun id 0 on this target, and add it to the 945 * queue first, if it exists. (and if it hasn't already 946 * been marked as part of the changer.) 947 */ 948 else { 949 nchanger = malloc(sizeof(struct cdchanger), 950 M_DEVBUF, M_NOWAIT | M_ZERO); 951 if (nchanger == NULL) { 952 softc->flags &= ~CD_FLAG_CHANGER; 953 printf("cdregister: unable to malloc " 954 "changer structure\ncdregister: " 955 "changer support disabled\n"); 956 957 /* 958 * Yes, gotos can be gross but in this case 959 * I think it's justified.. 960 */ 961 goto cdregisterexit; 962 } 963 if (camq_init(&nchanger->devq, 1) != 0) { 964 softc->flags &= ~CD_FLAG_CHANGER; 965 printf("cdregister: changer support " 966 "disabled\n"); 967 goto cdregisterexit; 968 } 969 970 nchanger->path_id = cgd->ccb_h.path_id; 971 nchanger->target_id = cgd->ccb_h.target_id; 972 973 /* this is superfluous, but it makes things clearer */ 974 nchanger->num_devices = 0; 975 976 STAILQ_INIT(&nchanger->chluns); 977 978 callout_init_mtx(&nchanger->long_handle, 979 periph->sim->mtx, 0); 980 callout_init_mtx(&nchanger->short_handle, 981 periph->sim->mtx, 0); 982 983 mtx_lock(&changerq_mtx); 984 num_changers++; 985 STAILQ_INSERT_TAIL(&changerq, nchanger, 986 changer_links); 987 mtx_unlock(&changerq_mtx); 988 989 /* 990 * Create a path with lun id 0, and see if we can 991 * find a matching device 992 */ 993 status = xpt_create_path(&path, /*periph*/ periph, 994 cgd->ccb_h.path_id, 995 cgd->ccb_h.target_id, 0); 996 997 /* 998 * If we were able to allocate the path, and if we 999 * find a matching device and it isn't already 1000 * marked as part of a changer, then we add it to 1001 * the current changer. 1002 */ 1003 if ((status == CAM_REQ_CMP) 1004 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1005 && ((((struct cd_softc *)periph->softc)->flags & 1006 CD_FLAG_CHANGER) == 0)) { 1007 struct cd_softc *nsoftc; 1008 1009 nsoftc = (struct cd_softc *)nperiph->softc; 1010 1011 nsoftc->flags |= CD_FLAG_CHANGER; 1012 nchanger->num_devices++; 1013 if (camq_resize(&nchanger->devq, 1014 nchanger->num_devices) != CAM_REQ_CMP) { 1015 printf("cdregister: camq_resize " 1016 "failed, changer support may " 1017 "be messed up\n"); 1018 } 1019 nsoftc->changer = nchanger; 1020 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1021 1022 STAILQ_INSERT_TAIL(&nchanger->chluns, 1023 nsoftc, changer_links); 1024 xpt_free_path(path); 1025 } else if (status == CAM_REQ_CMP) 1026 xpt_free_path(path); 1027 else { 1028 printf("cdregister: unable to allocate path\n" 1029 "cdregister: changer support may be " 1030 "broken\n"); 1031 } 1032 1033 softc->changer = nchanger; 1034 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1035 nchanger->num_devices++; 1036 if (camq_resize(&nchanger->devq, 1037 nchanger->num_devices) != CAM_REQ_CMP) { 1038 printf("cdregister: camq_resize " 1039 "failed, changer support may " 1040 "be messed up\n"); 1041 } 1042 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1043 changer_links); 1044 } 1045 } 1046 1047 /* 1048 * Schedule a periodic media polling events. 1049 */ 1050 callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0); 1051 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1052 (softc->flags & CD_FLAG_CHANGER) == 0 && 1053 (cgd->inq_flags & SID_AEN) == 0 && 1054 cd_poll_period != 0) 1055 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1056 cdmediapoll, periph); 1057 1058cdregisterexit: 1059 1060 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1061 xpt_schedule(periph, CAM_PRIORITY_DEV); 1062 else 1063 cdschedule(periph, CAM_PRIORITY_DEV); 1064 1065 return(CAM_REQ_CMP); 1066} 1067 1068static int 1069cdopen(struct disk *dp) 1070{ 1071 struct cam_periph *periph; 1072 struct cd_softc *softc; 1073 int error; 1074 1075 periph = (struct cam_periph *)dp->d_drv1; 1076 if (periph == NULL) 1077 return (ENXIO); 1078 1079 softc = (struct cd_softc *)periph->softc; 1080 1081 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1082 return(ENXIO); 1083 1084 cam_periph_lock(periph); 1085 1086 if (softc->flags & CD_FLAG_INVALID) { 1087 cam_periph_release_locked(periph); 1088 cam_periph_unlock(periph); 1089 return(ENXIO); 1090 } 1091 1092 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1093 cam_periph_release_locked(periph); 1094 cam_periph_unlock(periph); 1095 return (error); 1096 } 1097 1098 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1099 ("cdopen\n")); 1100 1101 /* 1102 * Check for media, and set the appropriate flags. We don't bail 1103 * if we don't have media, but then we don't allow anything but the 1104 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1105 */ 1106 cdcheckmedia(periph); 1107 1108 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1109 cam_periph_unhold(periph); 1110 1111 cam_periph_unlock(periph); 1112 1113 return (0); 1114} 1115 1116static int 1117cdclose(struct disk *dp) 1118{ 1119 struct cam_periph *periph; 1120 struct cd_softc *softc; 1121 1122 periph = (struct cam_periph *)dp->d_drv1; 1123 if (periph == NULL) 1124 return (ENXIO); 1125 1126 softc = (struct cd_softc *)periph->softc; 1127 1128 cam_periph_lock(periph); 1129 if (cam_periph_hold(periph, PRIBIO) != 0) { 1130 cam_periph_unlock(periph); 1131 cam_periph_release(periph); 1132 return (0); 1133 } 1134 1135 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1136 ("cdclose\n")); 1137 1138 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1139 cdprevent(periph, PR_ALLOW); 1140 1141 /* 1142 * Since we're closing this CD, mark the blocksize as unavailable. 1143 * It will be marked as available when the CD is opened again. 1144 */ 1145 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1146 1147 /* 1148 * We'll check the media and toc again at the next open(). 1149 */ 1150 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1151 1152 cam_periph_unhold(periph); 1153 cam_periph_release_locked(periph); 1154 cam_periph_unlock(periph); 1155 1156 return (0); 1157} 1158 1159static void 1160cdshorttimeout(void *arg) 1161{ 1162 struct cdchanger *changer; 1163 1164 changer = (struct cdchanger *)arg; 1165 1166 /* Always clear the short timeout flag, since that's what we're in */ 1167 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1168 1169 /* 1170 * Check to see if there is any more pending or outstanding I/O for 1171 * this device. If not, move it out of the active slot. 1172 */ 1173 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1174 && (changer->cur_device->outstanding_cmds == 0)) { 1175 changer->flags |= CHANGER_MANUAL_CALL; 1176 cdrunchangerqueue(changer); 1177 } 1178} 1179 1180/* 1181 * This is a wrapper for xpt_schedule. It only applies to changers. 1182 */ 1183static void 1184cdschedule(struct cam_periph *periph, int priority) 1185{ 1186 struct cd_softc *softc; 1187 1188 softc = (struct cd_softc *)periph->softc; 1189 1190 /* 1191 * If this device isn't currently queued, and if it isn't 1192 * the active device, then we queue this device and run the 1193 * changer queue if there is no timeout scheduled to do it. 1194 * If this device is the active device, just schedule it 1195 * to run again. If this device is queued, there should be 1196 * a timeout in place already that will make sure it runs. 1197 */ 1198 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1199 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1200 /* 1201 * We don't do anything with the priority here. 1202 * This is strictly a fifo queue. 1203 */ 1204 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1205 softc->pinfo.generation = ++softc->changer->devq.generation; 1206 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1207 1208 /* 1209 * Since we just put a device in the changer queue, 1210 * check and see if there is a timeout scheduled for 1211 * this changer. If so, let the timeout handle 1212 * switching this device into the active slot. If 1213 * not, manually call the timeout routine to 1214 * bootstrap things. 1215 */ 1216 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1217 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1218 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1219 softc->changer->flags |= CHANGER_MANUAL_CALL; 1220 cdrunchangerqueue(softc->changer); 1221 } 1222 } else if ((softc->flags & CD_FLAG_ACTIVE) 1223 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1224 xpt_schedule(periph, priority); 1225} 1226 1227static void 1228cdrunchangerqueue(void *arg) 1229{ 1230 struct cd_softc *softc; 1231 struct cdchanger *changer; 1232 int called_from_timeout; 1233 1234 changer = (struct cdchanger *)arg; 1235 1236 /* 1237 * If we have NOT been called from cdstrategy() or cddone(), and 1238 * instead from a timeout routine, go ahead and clear the 1239 * timeout flag. 1240 */ 1241 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1242 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1243 called_from_timeout = 1; 1244 } else 1245 called_from_timeout = 0; 1246 1247 /* Always clear the manual call flag */ 1248 changer->flags &= ~CHANGER_MANUAL_CALL; 1249 1250 /* nothing to do if the queue is empty */ 1251 if (changer->devq.entries <= 0) { 1252 return; 1253 } 1254 1255 /* 1256 * If the changer queue is frozen, that means we have an active 1257 * device. 1258 */ 1259 if (changer->devq.qfrozen_cnt[0] > 0) { 1260 1261 /* 1262 * We always need to reset the frozen count and clear the 1263 * active flag. 1264 */ 1265 changer->devq.qfrozen_cnt[0]--; 1266 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1267 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1268 1269 if (changer->cur_device->outstanding_cmds > 0) { 1270 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1271 changer->cur_device->bufs_left = 1272 changer->cur_device->outstanding_cmds; 1273 if (called_from_timeout) { 1274 callout_reset(&changer->long_handle, 1275 changer_max_busy_seconds * hz, 1276 cdrunchangerqueue, changer); 1277 changer->flags |= CHANGER_TIMEOUT_SCHED; 1278 } 1279 return; 1280 } 1281 1282 /* 1283 * Check to see whether the current device has any I/O left 1284 * to do. If so, requeue it at the end of the queue. If 1285 * not, there is no need to requeue it. 1286 */ 1287 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1288 1289 changer->cur_device->pinfo.generation = 1290 ++changer->devq.generation; 1291 camq_insert(&changer->devq, 1292 (cam_pinfo *)changer->cur_device); 1293 } 1294 } 1295 1296 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1297 1298 changer->cur_device = softc; 1299 1300 changer->devq.qfrozen_cnt[0]++; 1301 softc->flags |= CD_FLAG_ACTIVE; 1302 1303 /* Just in case this device is waiting */ 1304 wakeup(&softc->changer); 1305 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1306 1307 /* 1308 * Get rid of any pending timeouts, and set a flag to schedule new 1309 * ones so this device gets its full time quantum. 1310 */ 1311 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1312 callout_stop(&changer->long_handle); 1313 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1314 } 1315 1316 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1317 callout_stop(&changer->short_handle); 1318 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1319 } 1320 1321 /* 1322 * We need to schedule timeouts, but we only do this after the 1323 * first transaction has completed. This eliminates the changer 1324 * switch time. 1325 */ 1326 changer->flags |= CHANGER_NEED_TIMEOUT; 1327} 1328 1329static void 1330cdchangerschedule(struct cd_softc *softc) 1331{ 1332 struct cdchanger *changer; 1333 1334 changer = softc->changer; 1335 1336 /* 1337 * If this is a changer, and this is the current device, 1338 * and this device has at least the minimum time quantum to 1339 * run, see if we can switch it out. 1340 */ 1341 if ((softc->flags & CD_FLAG_ACTIVE) 1342 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1343 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1344 /* 1345 * We try three things here. The first is that we 1346 * check to see whether the schedule on completion 1347 * flag is set. If it is, we decrement the number 1348 * of buffers left, and if it's zero, we reschedule. 1349 * Next, we check to see whether the pending buffer 1350 * queue is empty and whether there are no 1351 * outstanding transactions. If so, we reschedule. 1352 * Next, we see if the pending buffer queue is empty. 1353 * If it is, we set the number of buffers left to 1354 * the current active buffer count and set the 1355 * schedule on complete flag. 1356 */ 1357 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1358 if (--softc->bufs_left == 0) { 1359 softc->changer->flags |= 1360 CHANGER_MANUAL_CALL; 1361 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1362 cdrunchangerqueue(softc->changer); 1363 } 1364 } else if ((bioq_first(&softc->bio_queue) == NULL) 1365 && (softc->outstanding_cmds == 0)) { 1366 softc->changer->flags |= CHANGER_MANUAL_CALL; 1367 cdrunchangerqueue(softc->changer); 1368 } 1369 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1370 && (softc->flags & CD_FLAG_ACTIVE)) { 1371 1372 /* 1373 * Now that the first transaction to this 1374 * particular device has completed, we can go ahead 1375 * and schedule our timeouts. 1376 */ 1377 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1378 callout_reset(&changer->long_handle, 1379 changer_max_busy_seconds * hz, 1380 cdrunchangerqueue, changer); 1381 changer->flags |= CHANGER_TIMEOUT_SCHED; 1382 } else 1383 printf("cdchangerschedule: already have a long" 1384 " timeout!\n"); 1385 1386 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1387 callout_reset(&changer->short_handle, 1388 changer_min_busy_seconds * hz, 1389 cdshorttimeout, changer); 1390 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1391 } else 1392 printf("cdchangerschedule: already have a short " 1393 "timeout!\n"); 1394 1395 /* 1396 * We just scheduled timeouts, no need to schedule 1397 * more. 1398 */ 1399 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1400 1401 } 1402} 1403 1404static int 1405cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1406 u_int32_t cam_flags, 1407 u_int32_t sense_flags), 1408 u_int32_t cam_flags, u_int32_t sense_flags) 1409{ 1410 struct cd_softc *softc; 1411 struct cam_periph *periph; 1412 int error; 1413 1414 periph = xpt_path_periph(ccb->ccb_h.path); 1415 softc = (struct cd_softc *)periph->softc; 1416 1417 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1418 softc->disk->d_devstat); 1419 1420 if (softc->flags & CD_FLAG_CHANGER) 1421 cdchangerschedule(softc); 1422 1423 return(error); 1424} 1425 1426static union ccb * 1427cdgetccb(struct cam_periph *periph, u_int32_t priority) 1428{ 1429 struct cd_softc *softc; 1430 1431 softc = (struct cd_softc *)periph->softc; 1432 1433 if (softc->flags & CD_FLAG_CHANGER) { 1434 /* 1435 * This should work the first time this device is woken up, 1436 * but just in case it doesn't, we use a while loop. 1437 */ 1438 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1439 /* 1440 * If this changer isn't already queued, queue it up. 1441 */ 1442 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1443 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1444 softc->pinfo.generation = 1445 ++softc->changer->devq.generation; 1446 camq_insert(&softc->changer->devq, 1447 (cam_pinfo *)softc); 1448 } 1449 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1450 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1451 && ((softc->changer->flags 1452 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1453 softc->changer->flags |= CHANGER_MANUAL_CALL; 1454 cdrunchangerqueue(softc->changer); 1455 } else 1456 msleep(&softc->changer, periph->sim->mtx, 1457 PRIBIO, "cgticb", 0); 1458 } 1459 } 1460 return(cam_periph_getccb(periph, priority)); 1461} 1462 1463 1464/* 1465 * Actually translate the requested transfer into one the physical driver 1466 * can understand. The transfer is described by a buf and will include 1467 * only one physical transfer. 1468 */ 1469static void 1470cdstrategy(struct bio *bp) 1471{ 1472 struct cam_periph *periph; 1473 struct cd_softc *softc; 1474 1475 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1476 if (periph == NULL) { 1477 biofinish(bp, NULL, ENXIO); 1478 return; 1479 } 1480 1481 cam_periph_lock(periph); 1482 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1483 ("cdstrategy(%p)\n", bp)); 1484 1485 softc = (struct cd_softc *)periph->softc; 1486 1487 /* 1488 * If the device has been made invalid, error out 1489 */ 1490 if ((softc->flags & CD_FLAG_INVALID)) { 1491 cam_periph_unlock(periph); 1492 biofinish(bp, NULL, ENXIO); 1493 return; 1494 } 1495 1496 /* 1497 * If we don't have valid media, look for it before trying to 1498 * schedule the I/O. 1499 */ 1500 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1501 int error; 1502 1503 error = cdcheckmedia(periph); 1504 if (error != 0) { 1505 cam_periph_unlock(periph); 1506 biofinish(bp, NULL, error); 1507 return; 1508 } 1509 } 1510 1511 /* 1512 * Place it in the queue of disk activities for this disk 1513 */ 1514 bioq_disksort(&softc->bio_queue, bp); 1515 1516 /* 1517 * Schedule ourselves for performing the work. We do things 1518 * differently for changers. 1519 */ 1520 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1521 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1522 else 1523 cdschedule(periph, CAM_PRIORITY_NORMAL); 1524 1525 cam_periph_unlock(periph); 1526 return; 1527} 1528 1529static void 1530cdstart(struct cam_periph *periph, union ccb *start_ccb) 1531{ 1532 struct cd_softc *softc; 1533 struct bio *bp; 1534 struct ccb_scsiio *csio; 1535 struct scsi_read_capacity_data *rcap; 1536 1537 softc = (struct cd_softc *)periph->softc; 1538 1539 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1540 1541 switch (softc->state) { 1542 case CD_STATE_NORMAL: 1543 { 1544 bp = bioq_first(&softc->bio_queue); 1545 if (periph->immediate_priority <= periph->pinfo.priority) { 1546 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1547 1548 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1549 periph_links.sle); 1550 periph->immediate_priority = CAM_PRIORITY_NONE; 1551 wakeup(&periph->ccb_list); 1552 } else if (bp == NULL) { 1553 if (softc->tur) { 1554 softc->tur = 0; 1555 csio = &start_ccb->csio; 1556 scsi_test_unit_ready(csio, 1557 /*retries*/ cd_retry_count, 1558 cddone, 1559 MSG_SIMPLE_Q_TAG, 1560 SSD_FULL_SIZE, 1561 cd_timeout); 1562 start_ccb->ccb_h.ccb_bp = NULL; 1563 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1564 xpt_action(start_ccb); 1565 } else 1566 xpt_release_ccb(start_ccb); 1567 } else { 1568 if (softc->tur) { 1569 softc->tur = 0; 1570 cam_periph_release_locked(periph); 1571 } 1572 bioq_remove(&softc->bio_queue, bp); 1573 1574 scsi_read_write(&start_ccb->csio, 1575 /*retries*/ cd_retry_count, 1576 /* cbfcnp */ cddone, 1577 MSG_SIMPLE_Q_TAG, 1578 /* read */bp->bio_cmd == BIO_READ, 1579 /* byte2 */ 0, 1580 /* minimum_cmd_size */ 10, 1581 /* lba */ bp->bio_offset / 1582 softc->params.blksize, 1583 bp->bio_bcount / softc->params.blksize, 1584 /* data_ptr */ bp->bio_data, 1585 /* dxfer_len */ bp->bio_bcount, 1586 /* sense_len */ cd_retry_count ? 1587 SSD_FULL_SIZE : SF_NO_PRINT, 1588 /* timeout */ cd_timeout); 1589 /* Use READ CD command for audio tracks. */ 1590 if (softc->params.blksize == 2352) { 1591 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1592 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1593 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1594 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1595 start_ccb->csio.cdb_len = 12; 1596 } 1597 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1598 1599 1600 LIST_INSERT_HEAD(&softc->pending_ccbs, 1601 &start_ccb->ccb_h, periph_links.le); 1602 softc->outstanding_cmds++; 1603 1604 /* We expect a unit attention from this device */ 1605 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1606 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1607 softc->flags &= ~CD_FLAG_RETRY_UA; 1608 } 1609 1610 start_ccb->ccb_h.ccb_bp = bp; 1611 bp = bioq_first(&softc->bio_queue); 1612 1613 xpt_action(start_ccb); 1614 } 1615 if (bp != NULL || softc->tur) { 1616 /* Have more work to do, so ensure we stay scheduled */ 1617 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1618 } 1619 break; 1620 } 1621 case CD_STATE_PROBE: 1622 { 1623 1624 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1625 M_SCSICD, M_NOWAIT | M_ZERO); 1626 if (rcap == NULL) { 1627 xpt_print(periph->path, 1628 "cdstart: Couldn't malloc read_capacity data\n"); 1629 /* cd_free_periph??? */ 1630 break; 1631 } 1632 csio = &start_ccb->csio; 1633 scsi_read_capacity(csio, 1634 /*retries*/ cd_retry_count, 1635 cddone, 1636 MSG_SIMPLE_Q_TAG, 1637 rcap, 1638 SSD_FULL_SIZE, 1639 /*timeout*/20000); 1640 start_ccb->ccb_h.ccb_bp = NULL; 1641 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1642 xpt_action(start_ccb); 1643 break; 1644 } 1645 } 1646} 1647 1648static void 1649cddone(struct cam_periph *periph, union ccb *done_ccb) 1650{ 1651 struct cd_softc *softc; 1652 struct ccb_scsiio *csio; 1653 1654 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1655 1656 softc = (struct cd_softc *)periph->softc; 1657 csio = &done_ccb->csio; 1658 1659 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1660 case CD_CCB_BUFFER_IO: 1661 { 1662 struct bio *bp; 1663 int error; 1664 1665 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1666 error = 0; 1667 1668 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1669 int sf; 1670 1671 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1672 sf = SF_RETRY_UA; 1673 else 1674 sf = 0; 1675 1676 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1677 if (error == ERESTART) { 1678 /* 1679 * A retry was scheuled, so 1680 * just return. 1681 */ 1682 return; 1683 } 1684 } 1685 1686 if (error != 0) { 1687 xpt_print(periph->path, 1688 "cddone: got error %#x back\n", error); 1689 bioq_flush(&softc->bio_queue, NULL, EIO); 1690 bp->bio_resid = bp->bio_bcount; 1691 bp->bio_error = error; 1692 bp->bio_flags |= BIO_ERROR; 1693 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1694 cam_release_devq(done_ccb->ccb_h.path, 1695 /*relsim_flags*/0, 1696 /*reduction*/0, 1697 /*timeout*/0, 1698 /*getcount_only*/0); 1699 1700 } else { 1701 bp->bio_resid = csio->resid; 1702 bp->bio_error = 0; 1703 if (bp->bio_resid != 0) { 1704 /* 1705 * Short transfer ??? 1706 * XXX: not sure this is correct for partial 1707 * transfers at EOM 1708 */ 1709 bp->bio_flags |= BIO_ERROR; 1710 } 1711 } 1712 1713 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1714 softc->outstanding_cmds--; 1715 1716 if (softc->flags & CD_FLAG_CHANGER) 1717 cdchangerschedule(softc); 1718 1719 biofinish(bp, NULL, 0); 1720 break; 1721 } 1722 case CD_CCB_PROBE: 1723 { 1724 struct scsi_read_capacity_data *rdcap; 1725 char announce_buf[120]; /* 1726 * Currently (9/30/97) the 1727 * longest possible announce 1728 * buffer is 108 bytes, for the 1729 * first error case below. 1730 * That is 39 bytes for the 1731 * basic string, 16 bytes for the 1732 * biggest sense key (hardware 1733 * error), 52 bytes for the 1734 * text of the largest sense 1735 * qualifier valid for a CDROM, 1736 * (0x72, 0x03 or 0x04, 1737 * 0x03), and one byte for the 1738 * null terminating character. 1739 * To allow for longer strings, 1740 * the announce buffer is 120 1741 * bytes. 1742 */ 1743 struct cd_params *cdp; 1744 int error; 1745 1746 cdp = &softc->params; 1747 1748 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1749 1750 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1751 cdp->blksize = scsi_4btoul (rdcap->length); 1752 1753 /* 1754 * Retry any UNIT ATTENTION type errors. They 1755 * are expected at boot. 1756 */ 1757 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1758 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1759 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1760 1761 snprintf(announce_buf, sizeof(announce_buf), 1762 "cd present [%lu x %lu byte records]", 1763 cdp->disksize, (u_long)cdp->blksize); 1764 1765 } else { 1766 if (error == ERESTART) { 1767 /* 1768 * A retry was scheuled, so 1769 * just return. 1770 */ 1771 return; 1772 } else { 1773 int asc, ascq; 1774 int sense_key, error_code; 1775 int have_sense; 1776 cam_status status; 1777 struct ccb_getdev cgd; 1778 1779 /* Don't wedge this device's queue */ 1780 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1781 cam_release_devq(done_ccb->ccb_h.path, 1782 /*relsim_flags*/0, 1783 /*reduction*/0, 1784 /*timeout*/0, 1785 /*getcount_only*/0); 1786 1787 status = done_ccb->ccb_h.status; 1788 1789 xpt_setup_ccb(&cgd.ccb_h, 1790 done_ccb->ccb_h.path, 1791 CAM_PRIORITY_NORMAL); 1792 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1793 xpt_action((union ccb *)&cgd); 1794 1795 if (scsi_extract_sense_ccb(done_ccb, 1796 &error_code, &sense_key, &asc, &ascq)) 1797 have_sense = TRUE; 1798 else 1799 have_sense = FALSE; 1800 1801 /* 1802 * Attach to anything that claims to be a 1803 * CDROM or WORM device, as long as it 1804 * doesn't return a "Logical unit not 1805 * supported" (0x25) error. 1806 */ 1807 if ((have_sense) && (asc != 0x25) 1808 && (error_code == SSD_CURRENT_ERROR)) { 1809 const char *sense_key_desc; 1810 const char *asc_desc; 1811 1812 scsi_sense_desc(sense_key, asc, ascq, 1813 &cgd.inq_data, 1814 &sense_key_desc, 1815 &asc_desc); 1816 snprintf(announce_buf, 1817 sizeof(announce_buf), 1818 "Attempt to query device " 1819 "size failed: %s, %s", 1820 sense_key_desc, 1821 asc_desc); 1822 } else if ((have_sense == 0) 1823 && ((status & CAM_STATUS_MASK) == 1824 CAM_SCSI_STATUS_ERROR) 1825 && (csio->scsi_status == 1826 SCSI_STATUS_BUSY)) { 1827 snprintf(announce_buf, 1828 sizeof(announce_buf), 1829 "Attempt to query device " 1830 "size failed: SCSI Status: %s", 1831 scsi_status_string(csio)); 1832 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1833 /* 1834 * We only print out an error for 1835 * CDROM type devices. For WORM 1836 * devices, we don't print out an 1837 * error since a few WORM devices 1838 * don't support CDROM commands. 1839 * If we have sense information, go 1840 * ahead and print it out. 1841 * Otherwise, just say that we 1842 * couldn't attach. 1843 */ 1844 1845 /* 1846 * Just print out the error, not 1847 * the full probe message, when we 1848 * don't attach. 1849 */ 1850 if (have_sense) 1851 scsi_sense_print( 1852 &done_ccb->csio); 1853 else { 1854 xpt_print(periph->path, 1855 "got CAM status %#x\n", 1856 done_ccb->ccb_h.status); 1857 } 1858 xpt_print(periph->path, "fatal error, " 1859 "failed to attach to device\n"); 1860 /* 1861 * Invalidate this peripheral. 1862 */ 1863 cam_periph_invalidate(periph); 1864 1865 announce_buf[0] = '\0'; 1866 } else { 1867 1868 /* 1869 * Invalidate this peripheral. 1870 */ 1871 cam_periph_invalidate(periph); 1872 announce_buf[0] = '\0'; 1873 } 1874 } 1875 } 1876 free(rdcap, M_SCSICD); 1877 if (announce_buf[0] != '\0') { 1878 xpt_announce_periph(periph, announce_buf); 1879 if (softc->flags & CD_FLAG_CHANGER) 1880 cdchangerschedule(softc); 1881 /* 1882 * Create our sysctl variables, now that we know 1883 * we have successfully attached. 1884 */ 1885 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1886 } 1887 softc->state = CD_STATE_NORMAL; 1888 /* 1889 * Since our peripheral may be invalidated by an error 1890 * above or an external event, we must release our CCB 1891 * before releasing the probe lock on the peripheral. 1892 * The peripheral will only go away once the last lock 1893 * is removed, and we need it around for the CCB release 1894 * operation. 1895 */ 1896 xpt_release_ccb(done_ccb); 1897 cam_periph_unhold(periph); 1898 return; 1899 } 1900 case CD_CCB_WAITING: 1901 { 1902 /* Caller will release the CCB */ 1903 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1904 ("trying to wakeup ccbwait\n")); 1905 1906 wakeup(&done_ccb->ccb_h.cbfcnp); 1907 return; 1908 } 1909 case CD_CCB_TUR: 1910 { 1911 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1912 1913 if (cderror(done_ccb, CAM_RETRY_SELTO, 1914 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1915 ERESTART) 1916 return; 1917 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1918 cam_release_devq(done_ccb->ccb_h.path, 1919 /*relsim_flags*/0, 1920 /*reduction*/0, 1921 /*timeout*/0, 1922 /*getcount_only*/0); 1923 } 1924 xpt_release_ccb(done_ccb); 1925 cam_periph_release_locked(periph); 1926 return; 1927 } 1928 default: 1929 break; 1930 } 1931 xpt_release_ccb(done_ccb); 1932} 1933 1934static union cd_pages * 1935cdgetpage(struct cd_mode_params *mode_params) 1936{ 1937 union cd_pages *page; 1938 1939 if (mode_params->cdb_size == 10) 1940 page = (union cd_pages *)find_mode_page_10( 1941 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1942 else 1943 page = (union cd_pages *)find_mode_page_6( 1944 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1945 1946 return (page); 1947} 1948 1949static int 1950cdgetpagesize(int page_num) 1951{ 1952 int i; 1953 1954 for (i = 0; i < (sizeof(cd_page_size_table)/ 1955 sizeof(cd_page_size_table[0])); i++) { 1956 if (cd_page_size_table[i].page == page_num) 1957 return (cd_page_size_table[i].page_size); 1958 } 1959 1960 return (-1); 1961} 1962 1963static int 1964cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1965{ 1966 1967 struct cam_periph *periph; 1968 struct cd_softc *softc; 1969 int nocopyout, error = 0; 1970 1971 periph = (struct cam_periph *)dp->d_drv1; 1972 if (periph == NULL) 1973 return(ENXIO); 1974 1975 cam_periph_lock(periph); 1976 1977 softc = (struct cd_softc *)periph->softc; 1978 1979 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1980 ("cdioctl(%#lx)\n", cmd)); 1981 1982 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1983 cam_periph_unlock(periph); 1984 cam_periph_release(periph); 1985 return (error); 1986 } 1987 1988 /* 1989 * If we don't have media loaded, check for it. If still don't 1990 * have media loaded, we can only do a load or eject. 1991 * 1992 * We only care whether media is loaded if this is a cd-specific ioctl 1993 * (thus the IOCGROUP check below). Note that this will break if 1994 * anyone adds any ioctls into the switch statement below that don't 1995 * have their ioctl group set to 'c'. 1996 */ 1997 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1998 && ((cmd != CDIOCCLOSE) 1999 && (cmd != CDIOCEJECT)) 2000 && (IOCGROUP(cmd) == 'c')) { 2001 error = cdcheckmedia(periph); 2002 if (error != 0) { 2003 cam_periph_unhold(periph); 2004 cam_periph_unlock(periph); 2005 return (error); 2006 } 2007 } 2008 /* 2009 * Drop the lock here so later mallocs can use WAITOK. The periph 2010 * is essentially locked still with the cam_periph_hold call above. 2011 */ 2012 cam_periph_unlock(periph); 2013 2014 nocopyout = 0; 2015 switch (cmd) { 2016 2017 case CDIOCPLAYTRACKS: 2018 { 2019 struct ioc_play_track *args 2020 = (struct ioc_play_track *) addr; 2021 struct cd_mode_params params; 2022 union cd_pages *page; 2023 2024 params.alloc_len = sizeof(union cd_mode_data_6_10); 2025 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2026 M_WAITOK | M_ZERO); 2027 2028 cam_periph_lock(periph); 2029 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2030 ("trying to do CDIOCPLAYTRACKS\n")); 2031 2032 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2033 if (error) { 2034 free(params.mode_buf, M_SCSICD); 2035 cam_periph_unlock(periph); 2036 break; 2037 } 2038 page = cdgetpage(¶ms); 2039 2040 page->audio.flags &= ~CD_PA_SOTC; 2041 page->audio.flags |= CD_PA_IMMED; 2042 error = cdsetmode(periph, ¶ms); 2043 free(params.mode_buf, M_SCSICD); 2044 if (error) { 2045 cam_periph_unlock(periph); 2046 break; 2047 } 2048 2049 /* 2050 * This was originally implemented with the PLAY 2051 * AUDIO TRACK INDEX command, but that command was 2052 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2053 * drives support it but ATAPI and ATAPI-derivative 2054 * drives don't seem to support it. So we keep a 2055 * cache of the table of contents and translate 2056 * track numbers to MSF format. 2057 */ 2058 if (softc->flags & CD_FLAG_VALID_TOC) { 2059 union msf_lba *sentry, *eentry; 2060 int st, et; 2061 2062 if (args->end_track < 2063 softc->toc.header.ending_track + 1) 2064 args->end_track++; 2065 if (args->end_track > 2066 softc->toc.header.ending_track + 1) 2067 args->end_track = 2068 softc->toc.header.ending_track + 1; 2069 st = args->start_track - 2070 softc->toc.header.starting_track; 2071 et = args->end_track - 2072 softc->toc.header.starting_track; 2073 if ((st < 0) 2074 || (et < 0) 2075 || (st > (softc->toc.header.ending_track - 2076 softc->toc.header.starting_track))) { 2077 error = EINVAL; 2078 cam_periph_unlock(periph); 2079 break; 2080 } 2081 sentry = &softc->toc.entries[st].addr; 2082 eentry = &softc->toc.entries[et].addr; 2083 error = cdplaymsf(periph, 2084 sentry->msf.minute, 2085 sentry->msf.second, 2086 sentry->msf.frame, 2087 eentry->msf.minute, 2088 eentry->msf.second, 2089 eentry->msf.frame); 2090 } else { 2091 /* 2092 * If we don't have a valid TOC, try the 2093 * play track index command. It is part of 2094 * the SCSI-2 spec, but was removed in the 2095 * MMC specs. ATAPI and ATAPI-derived 2096 * drives don't support it. 2097 */ 2098 if (softc->quirks & CD_Q_BCD_TRACKS) { 2099 args->start_track = 2100 bin2bcd(args->start_track); 2101 args->end_track = 2102 bin2bcd(args->end_track); 2103 } 2104 error = cdplaytracks(periph, 2105 args->start_track, 2106 args->start_index, 2107 args->end_track, 2108 args->end_index); 2109 } 2110 cam_periph_unlock(periph); 2111 } 2112 break; 2113 case CDIOCPLAYMSF: 2114 { 2115 struct ioc_play_msf *args 2116 = (struct ioc_play_msf *) addr; 2117 struct cd_mode_params params; 2118 union cd_pages *page; 2119 2120 params.alloc_len = sizeof(union cd_mode_data_6_10); 2121 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2122 M_WAITOK | M_ZERO); 2123 2124 cam_periph_lock(periph); 2125 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2126 ("trying to do CDIOCPLAYMSF\n")); 2127 2128 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2129 if (error) { 2130 free(params.mode_buf, M_SCSICD); 2131 cam_periph_unlock(periph); 2132 break; 2133 } 2134 page = cdgetpage(¶ms); 2135 2136 page->audio.flags &= ~CD_PA_SOTC; 2137 page->audio.flags |= CD_PA_IMMED; 2138 error = cdsetmode(periph, ¶ms); 2139 free(params.mode_buf, M_SCSICD); 2140 if (error) { 2141 cam_periph_unlock(periph); 2142 break; 2143 } 2144 error = cdplaymsf(periph, 2145 args->start_m, 2146 args->start_s, 2147 args->start_f, 2148 args->end_m, 2149 args->end_s, 2150 args->end_f); 2151 cam_periph_unlock(periph); 2152 } 2153 break; 2154 case CDIOCPLAYBLOCKS: 2155 { 2156 struct ioc_play_blocks *args 2157 = (struct ioc_play_blocks *) addr; 2158 struct cd_mode_params params; 2159 union cd_pages *page; 2160 2161 params.alloc_len = sizeof(union cd_mode_data_6_10); 2162 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2163 M_WAITOK | M_ZERO); 2164 2165 cam_periph_lock(periph); 2166 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2167 ("trying to do CDIOCPLAYBLOCKS\n")); 2168 2169 2170 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2171 if (error) { 2172 free(params.mode_buf, M_SCSICD); 2173 cam_periph_unlock(periph); 2174 break; 2175 } 2176 page = cdgetpage(¶ms); 2177 2178 page->audio.flags &= ~CD_PA_SOTC; 2179 page->audio.flags |= CD_PA_IMMED; 2180 error = cdsetmode(periph, ¶ms); 2181 free(params.mode_buf, M_SCSICD); 2182 if (error) { 2183 cam_periph_unlock(periph); 2184 break; 2185 } 2186 error = cdplay(periph, args->blk, args->len); 2187 cam_periph_unlock(periph); 2188 } 2189 break; 2190 case CDIOCREADSUBCHANNEL_SYSSPACE: 2191 nocopyout = 1; 2192 /* Fallthrough */ 2193 case CDIOCREADSUBCHANNEL: 2194 { 2195 struct ioc_read_subchannel *args 2196 = (struct ioc_read_subchannel *) addr; 2197 struct cd_sub_channel_info *data; 2198 u_int32_t len = args->data_len; 2199 2200 data = malloc(sizeof(struct cd_sub_channel_info), 2201 M_SCSICD, M_WAITOK | M_ZERO); 2202 2203 cam_periph_lock(periph); 2204 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2205 ("trying to do CDIOCREADSUBCHANNEL\n")); 2206 2207 if ((len > sizeof(struct cd_sub_channel_info)) || 2208 (len < sizeof(struct cd_sub_channel_header))) { 2209 printf( 2210 "scsi_cd: cdioctl: " 2211 "cdioreadsubchannel: error, len=%d\n", 2212 len); 2213 error = EINVAL; 2214 free(data, M_SCSICD); 2215 cam_periph_unlock(periph); 2216 break; 2217 } 2218 2219 if (softc->quirks & CD_Q_BCD_TRACKS) 2220 args->track = bin2bcd(args->track); 2221 2222 error = cdreadsubchannel(periph, args->address_format, 2223 args->data_format, args->track, data, len); 2224 2225 if (error) { 2226 free(data, M_SCSICD); 2227 cam_periph_unlock(periph); 2228 break; 2229 } 2230 if (softc->quirks & CD_Q_BCD_TRACKS) 2231 data->what.track_info.track_number = 2232 bcd2bin(data->what.track_info.track_number); 2233 len = min(len, ((data->header.data_len[0] << 8) + 2234 data->header.data_len[1] + 2235 sizeof(struct cd_sub_channel_header))); 2236 cam_periph_unlock(periph); 2237 if (nocopyout == 0) { 2238 if (copyout(data, args->data, len) != 0) { 2239 error = EFAULT; 2240 } 2241 } else { 2242 bcopy(data, args->data, len); 2243 } 2244 free(data, M_SCSICD); 2245 } 2246 break; 2247 2248 case CDIOREADTOCHEADER: 2249 { 2250 struct ioc_toc_header *th; 2251 2252 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2253 M_WAITOK | M_ZERO); 2254 2255 cam_periph_lock(periph); 2256 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2257 ("trying to do CDIOREADTOCHEADER\n")); 2258 2259 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2260 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2261 if (error) { 2262 free(th, M_SCSICD); 2263 cam_periph_unlock(periph); 2264 break; 2265 } 2266 if (softc->quirks & CD_Q_BCD_TRACKS) { 2267 /* we are going to have to convert the BCD 2268 * encoding on the cd to what is expected 2269 */ 2270 th->starting_track = 2271 bcd2bin(th->starting_track); 2272 th->ending_track = bcd2bin(th->ending_track); 2273 } 2274 th->len = ntohs(th->len); 2275 bcopy(th, addr, sizeof(*th)); 2276 free(th, M_SCSICD); 2277 cam_periph_unlock(periph); 2278 } 2279 break; 2280 case CDIOREADTOCENTRYS: 2281 { 2282 struct cd_tocdata *data; 2283 struct cd_toc_single *lead; 2284 struct ioc_read_toc_entry *te = 2285 (struct ioc_read_toc_entry *) addr; 2286 struct ioc_toc_header *th; 2287 u_int32_t len, readlen, idx, num; 2288 u_int32_t starting_track = te->starting_track; 2289 2290 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2291 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2292 2293 cam_periph_lock(periph); 2294 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2295 ("trying to do CDIOREADTOCENTRYS\n")); 2296 2297 if (te->data_len < sizeof(struct cd_toc_entry) 2298 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2299 || (te->address_format != CD_MSF_FORMAT 2300 && te->address_format != CD_LBA_FORMAT)) { 2301 error = EINVAL; 2302 printf("scsi_cd: error in readtocentries, " 2303 "returning EINVAL\n"); 2304 free(data, M_SCSICD); 2305 free(lead, M_SCSICD); 2306 cam_periph_unlock(periph); 2307 break; 2308 } 2309 2310 th = &data->header; 2311 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2312 sizeof (*th), /*sense_flags*/0); 2313 if (error) { 2314 free(data, M_SCSICD); 2315 free(lead, M_SCSICD); 2316 cam_periph_unlock(periph); 2317 break; 2318 } 2319 2320 if (softc->quirks & CD_Q_BCD_TRACKS) { 2321 /* we are going to have to convert the BCD 2322 * encoding on the cd to what is expected 2323 */ 2324 th->starting_track = 2325 bcd2bin(th->starting_track); 2326 th->ending_track = bcd2bin(th->ending_track); 2327 } 2328 2329 if (starting_track == 0) 2330 starting_track = th->starting_track; 2331 else if (starting_track == LEADOUT) 2332 starting_track = th->ending_track + 1; 2333 else if (starting_track < th->starting_track || 2334 starting_track > th->ending_track + 1) { 2335 printf("scsi_cd: error in readtocentries, " 2336 "returning EINVAL\n"); 2337 free(data, M_SCSICD); 2338 free(lead, M_SCSICD); 2339 cam_periph_unlock(periph); 2340 error = EINVAL; 2341 break; 2342 } 2343 2344 /* calculate reading length without leadout entry */ 2345 readlen = (th->ending_track - starting_track + 1) * 2346 sizeof(struct cd_toc_entry); 2347 2348 /* and with leadout entry */ 2349 len = readlen + sizeof(struct cd_toc_entry); 2350 if (te->data_len < len) { 2351 len = te->data_len; 2352 if (readlen > len) 2353 readlen = len; 2354 } 2355 if (len > sizeof(data->entries)) { 2356 printf("scsi_cd: error in readtocentries, " 2357 "returning EINVAL\n"); 2358 error = EINVAL; 2359 free(data, M_SCSICD); 2360 free(lead, M_SCSICD); 2361 cam_periph_unlock(periph); 2362 break; 2363 } 2364 num = len / sizeof(struct cd_toc_entry); 2365 2366 if (readlen > 0) { 2367 error = cdreadtoc(periph, te->address_format, 2368 starting_track, 2369 (u_int8_t *)data, 2370 readlen + sizeof (*th), 2371 /*sense_flags*/0); 2372 if (error) { 2373 free(data, M_SCSICD); 2374 free(lead, M_SCSICD); 2375 cam_periph_unlock(periph); 2376 break; 2377 } 2378 } 2379 2380 /* make leadout entry if needed */ 2381 idx = starting_track + num - 1; 2382 if (softc->quirks & CD_Q_BCD_TRACKS) 2383 th->ending_track = bcd2bin(th->ending_track); 2384 if (idx == th->ending_track + 1) { 2385 error = cdreadtoc(periph, te->address_format, 2386 LEADOUT, (u_int8_t *)lead, 2387 sizeof(*lead), 2388 /*sense_flags*/0); 2389 if (error) { 2390 free(data, M_SCSICD); 2391 free(lead, M_SCSICD); 2392 cam_periph_unlock(periph); 2393 break; 2394 } 2395 data->entries[idx - starting_track] = 2396 lead->entry; 2397 } 2398 if (softc->quirks & CD_Q_BCD_TRACKS) { 2399 for (idx = 0; idx < num - 1; idx++) { 2400 data->entries[idx].track = 2401 bcd2bin(data->entries[idx].track); 2402 } 2403 } 2404 2405 cam_periph_unlock(periph); 2406 error = copyout(data->entries, te->data, len); 2407 free(data, M_SCSICD); 2408 free(lead, M_SCSICD); 2409 } 2410 break; 2411 case CDIOREADTOCENTRY: 2412 { 2413 struct cd_toc_single *data; 2414 struct ioc_read_toc_single_entry *te = 2415 (struct ioc_read_toc_single_entry *) addr; 2416 struct ioc_toc_header *th; 2417 u_int32_t track; 2418 2419 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2420 2421 cam_periph_lock(periph); 2422 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2423 ("trying to do CDIOREADTOCENTRY\n")); 2424 2425 if (te->address_format != CD_MSF_FORMAT 2426 && te->address_format != CD_LBA_FORMAT) { 2427 printf("error in readtocentry, " 2428 " returning EINVAL\n"); 2429 free(data, M_SCSICD); 2430 error = EINVAL; 2431 cam_periph_unlock(periph); 2432 break; 2433 } 2434 2435 th = &data->header; 2436 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2437 sizeof (*th), /*sense_flags*/0); 2438 if (error) { 2439 free(data, M_SCSICD); 2440 cam_periph_unlock(periph); 2441 break; 2442 } 2443 2444 if (softc->quirks & CD_Q_BCD_TRACKS) { 2445 /* we are going to have to convert the BCD 2446 * encoding on the cd to what is expected 2447 */ 2448 th->starting_track = 2449 bcd2bin(th->starting_track); 2450 th->ending_track = bcd2bin(th->ending_track); 2451 } 2452 track = te->track; 2453 if (track == 0) 2454 track = th->starting_track; 2455 else if (track == LEADOUT) 2456 /* OK */; 2457 else if (track < th->starting_track || 2458 track > th->ending_track + 1) { 2459 printf("error in readtocentry, " 2460 " returning EINVAL\n"); 2461 free(data, M_SCSICD); 2462 error = EINVAL; 2463 cam_periph_unlock(periph); 2464 break; 2465 } 2466 2467 error = cdreadtoc(periph, te->address_format, track, 2468 (u_int8_t *)data, sizeof(*data), 2469 /*sense_flags*/0); 2470 if (error) { 2471 free(data, M_SCSICD); 2472 cam_periph_unlock(periph); 2473 break; 2474 } 2475 2476 if (softc->quirks & CD_Q_BCD_TRACKS) 2477 data->entry.track = bcd2bin(data->entry.track); 2478 bcopy(&data->entry, &te->entry, 2479 sizeof(struct cd_toc_entry)); 2480 free(data, M_SCSICD); 2481 cam_periph_unlock(periph); 2482 } 2483 break; 2484 case CDIOCSETPATCH: 2485 { 2486 struct ioc_patch *arg = (struct ioc_patch *)addr; 2487 struct cd_mode_params params; 2488 union cd_pages *page; 2489 2490 params.alloc_len = sizeof(union cd_mode_data_6_10); 2491 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2492 M_WAITOK | M_ZERO); 2493 2494 cam_periph_lock(periph); 2495 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2496 ("trying to do CDIOCSETPATCH\n")); 2497 2498 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2499 if (error) { 2500 free(params.mode_buf, M_SCSICD); 2501 cam_periph_unlock(periph); 2502 break; 2503 } 2504 page = cdgetpage(¶ms); 2505 2506 page->audio.port[LEFT_PORT].channels = 2507 arg->patch[0]; 2508 page->audio.port[RIGHT_PORT].channels = 2509 arg->patch[1]; 2510 page->audio.port[2].channels = arg->patch[2]; 2511 page->audio.port[3].channels = arg->patch[3]; 2512 error = cdsetmode(periph, ¶ms); 2513 free(params.mode_buf, M_SCSICD); 2514 cam_periph_unlock(periph); 2515 } 2516 break; 2517 case CDIOCGETVOL: 2518 { 2519 struct ioc_vol *arg = (struct ioc_vol *) addr; 2520 struct cd_mode_params params; 2521 union cd_pages *page; 2522 2523 params.alloc_len = sizeof(union cd_mode_data_6_10); 2524 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2525 M_WAITOK | M_ZERO); 2526 2527 cam_periph_lock(periph); 2528 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2529 ("trying to do CDIOCGETVOL\n")); 2530 2531 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2532 if (error) { 2533 free(params.mode_buf, M_SCSICD); 2534 cam_periph_unlock(periph); 2535 break; 2536 } 2537 page = cdgetpage(¶ms); 2538 2539 arg->vol[LEFT_PORT] = 2540 page->audio.port[LEFT_PORT].volume; 2541 arg->vol[RIGHT_PORT] = 2542 page->audio.port[RIGHT_PORT].volume; 2543 arg->vol[2] = page->audio.port[2].volume; 2544 arg->vol[3] = page->audio.port[3].volume; 2545 free(params.mode_buf, M_SCSICD); 2546 cam_periph_unlock(periph); 2547 } 2548 break; 2549 case CDIOCSETVOL: 2550 { 2551 struct ioc_vol *arg = (struct ioc_vol *) addr; 2552 struct cd_mode_params params; 2553 union cd_pages *page; 2554 2555 params.alloc_len = sizeof(union cd_mode_data_6_10); 2556 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2557 M_WAITOK | M_ZERO); 2558 2559 cam_periph_lock(periph); 2560 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2561 ("trying to do CDIOCSETVOL\n")); 2562 2563 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2564 if (error) { 2565 free(params.mode_buf, M_SCSICD); 2566 cam_periph_unlock(periph); 2567 break; 2568 } 2569 page = cdgetpage(¶ms); 2570 2571 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2572 page->audio.port[LEFT_PORT].volume = 2573 arg->vol[LEFT_PORT]; 2574 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2575 page->audio.port[RIGHT_PORT].volume = 2576 arg->vol[RIGHT_PORT]; 2577 page->audio.port[2].volume = arg->vol[2]; 2578 page->audio.port[3].volume = arg->vol[3]; 2579 error = cdsetmode(periph, ¶ms); 2580 cam_periph_unlock(periph); 2581 free(params.mode_buf, M_SCSICD); 2582 } 2583 break; 2584 case CDIOCSETMONO: 2585 { 2586 struct cd_mode_params params; 2587 union cd_pages *page; 2588 2589 params.alloc_len = sizeof(union cd_mode_data_6_10); 2590 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2591 M_WAITOK | M_ZERO); 2592 2593 cam_periph_lock(periph); 2594 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2595 ("trying to do CDIOCSETMONO\n")); 2596 2597 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2598 if (error) { 2599 free(params.mode_buf, M_SCSICD); 2600 cam_periph_unlock(periph); 2601 break; 2602 } 2603 page = cdgetpage(¶ms); 2604 2605 page->audio.port[LEFT_PORT].channels = 2606 LEFT_CHANNEL | RIGHT_CHANNEL; 2607 page->audio.port[RIGHT_PORT].channels = 2608 LEFT_CHANNEL | RIGHT_CHANNEL; 2609 page->audio.port[2].channels = 0; 2610 page->audio.port[3].channels = 0; 2611 error = cdsetmode(periph, ¶ms); 2612 cam_periph_unlock(periph); 2613 free(params.mode_buf, M_SCSICD); 2614 } 2615 break; 2616 case CDIOCSETSTEREO: 2617 { 2618 struct cd_mode_params params; 2619 union cd_pages *page; 2620 2621 params.alloc_len = sizeof(union cd_mode_data_6_10); 2622 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2623 M_WAITOK | M_ZERO); 2624 2625 cam_periph_lock(periph); 2626 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2627 ("trying to do CDIOCSETSTEREO\n")); 2628 2629 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2630 if (error) { 2631 free(params.mode_buf, M_SCSICD); 2632 cam_periph_unlock(periph); 2633 break; 2634 } 2635 page = cdgetpage(¶ms); 2636 2637 page->audio.port[LEFT_PORT].channels = 2638 LEFT_CHANNEL; 2639 page->audio.port[RIGHT_PORT].channels = 2640 RIGHT_CHANNEL; 2641 page->audio.port[2].channels = 0; 2642 page->audio.port[3].channels = 0; 2643 error = cdsetmode(periph, ¶ms); 2644 free(params.mode_buf, M_SCSICD); 2645 cam_periph_unlock(periph); 2646 } 2647 break; 2648 case CDIOCSETMUTE: 2649 { 2650 struct cd_mode_params params; 2651 union cd_pages *page; 2652 2653 params.alloc_len = sizeof(union cd_mode_data_6_10); 2654 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2655 M_WAITOK | M_ZERO); 2656 2657 cam_periph_lock(periph); 2658 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2659 ("trying to do CDIOCSETMUTE\n")); 2660 2661 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2662 if (error) { 2663 free(params.mode_buf, M_SCSICD); 2664 cam_periph_unlock(periph); 2665 break; 2666 } 2667 page = cdgetpage(¶ms); 2668 2669 page->audio.port[LEFT_PORT].channels = 0; 2670 page->audio.port[RIGHT_PORT].channels = 0; 2671 page->audio.port[2].channels = 0; 2672 page->audio.port[3].channels = 0; 2673 error = cdsetmode(periph, ¶ms); 2674 free(params.mode_buf, M_SCSICD); 2675 cam_periph_unlock(periph); 2676 } 2677 break; 2678 case CDIOCSETLEFT: 2679 { 2680 struct cd_mode_params params; 2681 union cd_pages *page; 2682 2683 params.alloc_len = sizeof(union cd_mode_data_6_10); 2684 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2685 M_WAITOK | M_ZERO); 2686 2687 cam_periph_lock(periph); 2688 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2689 ("trying to do CDIOCSETLEFT\n")); 2690 2691 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2692 if (error) { 2693 free(params.mode_buf, M_SCSICD); 2694 cam_periph_unlock(periph); 2695 break; 2696 } 2697 page = cdgetpage(¶ms); 2698 2699 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2700 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2701 page->audio.port[2].channels = 0; 2702 page->audio.port[3].channels = 0; 2703 error = cdsetmode(periph, ¶ms); 2704 free(params.mode_buf, M_SCSICD); 2705 cam_periph_unlock(periph); 2706 } 2707 break; 2708 case CDIOCSETRIGHT: 2709 { 2710 struct cd_mode_params params; 2711 union cd_pages *page; 2712 2713 params.alloc_len = sizeof(union cd_mode_data_6_10); 2714 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2715 M_WAITOK | M_ZERO); 2716 2717 cam_periph_lock(periph); 2718 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2719 ("trying to do CDIOCSETRIGHT\n")); 2720 2721 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2722 if (error) { 2723 free(params.mode_buf, M_SCSICD); 2724 cam_periph_unlock(periph); 2725 break; 2726 } 2727 page = cdgetpage(¶ms); 2728 2729 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2730 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2731 page->audio.port[2].channels = 0; 2732 page->audio.port[3].channels = 0; 2733 error = cdsetmode(periph, ¶ms); 2734 free(params.mode_buf, M_SCSICD); 2735 cam_periph_unlock(periph); 2736 } 2737 break; 2738 case CDIOCRESUME: 2739 cam_periph_lock(periph); 2740 error = cdpause(periph, 1); 2741 cam_periph_unlock(periph); 2742 break; 2743 case CDIOCPAUSE: 2744 cam_periph_lock(periph); 2745 error = cdpause(periph, 0); 2746 cam_periph_unlock(periph); 2747 break; 2748 case CDIOCSTART: 2749 cam_periph_lock(periph); 2750 error = cdstartunit(periph, 0); 2751 cam_periph_unlock(periph); 2752 break; 2753 case CDIOCCLOSE: 2754 cam_periph_lock(periph); 2755 error = cdstartunit(periph, 1); 2756 cam_periph_unlock(periph); 2757 break; 2758 case CDIOCSTOP: 2759 cam_periph_lock(periph); 2760 error = cdstopunit(periph, 0); 2761 cam_periph_unlock(periph); 2762 break; 2763 case CDIOCEJECT: 2764 cam_periph_lock(periph); 2765 error = cdstopunit(periph, 1); 2766 cam_periph_unlock(periph); 2767 break; 2768 case CDIOCALLOW: 2769 cam_periph_lock(periph); 2770 cdprevent(periph, PR_ALLOW); 2771 cam_periph_unlock(periph); 2772 break; 2773 case CDIOCPREVENT: 2774 cam_periph_lock(periph); 2775 cdprevent(periph, PR_PREVENT); 2776 cam_periph_unlock(periph); 2777 break; 2778 case CDIOCSETDEBUG: 2779 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2780 error = ENOTTY; 2781 break; 2782 case CDIOCCLRDEBUG: 2783 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2784 error = ENOTTY; 2785 break; 2786 case CDIOCRESET: 2787 /* return (cd_reset(periph)); */ 2788 error = ENOTTY; 2789 break; 2790 case CDRIOCREADSPEED: 2791 cam_periph_lock(periph); 2792 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2793 cam_periph_unlock(periph); 2794 break; 2795 case CDRIOCWRITESPEED: 2796 cam_periph_lock(periph); 2797 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2798 cam_periph_unlock(periph); 2799 break; 2800 case CDRIOCGETBLOCKSIZE: 2801 *(int *)addr = softc->params.blksize; 2802 break; 2803 case CDRIOCSETBLOCKSIZE: 2804 if (*(int *)addr <= 0) { 2805 error = EINVAL; 2806 break; 2807 } 2808 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2809 break; 2810 case DVDIOCSENDKEY: 2811 case DVDIOCREPORTKEY: { 2812 struct dvd_authinfo *authinfo; 2813 2814 authinfo = (struct dvd_authinfo *)addr; 2815 2816 if (cmd == DVDIOCREPORTKEY) 2817 error = cdreportkey(periph, authinfo); 2818 else 2819 error = cdsendkey(periph, authinfo); 2820 break; 2821 } 2822 case DVDIOCREADSTRUCTURE: { 2823 struct dvd_struct *dvdstruct; 2824 2825 dvdstruct = (struct dvd_struct *)addr; 2826 2827 error = cdreaddvdstructure(periph, dvdstruct); 2828 2829 break; 2830 } 2831 default: 2832 cam_periph_lock(periph); 2833 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2834 cam_periph_unlock(periph); 2835 break; 2836 } 2837 2838 cam_periph_lock(periph); 2839 cam_periph_unhold(periph); 2840 2841 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2842 if (error && bootverbose) { 2843 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2844 } 2845 cam_periph_unlock(periph); 2846 2847 return (error); 2848} 2849 2850static void 2851cdprevent(struct cam_periph *periph, int action) 2852{ 2853 union ccb *ccb; 2854 struct cd_softc *softc; 2855 int error; 2856 2857 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2858 2859 softc = (struct cd_softc *)periph->softc; 2860 2861 if (((action == PR_ALLOW) 2862 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2863 || ((action == PR_PREVENT) 2864 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2865 return; 2866 } 2867 2868 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2869 2870 scsi_prevent(&ccb->csio, 2871 /*retries*/ cd_retry_count, 2872 cddone, 2873 MSG_SIMPLE_Q_TAG, 2874 action, 2875 SSD_FULL_SIZE, 2876 /* timeout */60000); 2877 2878 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2879 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2880 2881 xpt_release_ccb(ccb); 2882 2883 if (error == 0) { 2884 if (action == PR_ALLOW) 2885 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2886 else 2887 softc->flags |= CD_FLAG_DISC_LOCKED; 2888 } 2889} 2890 2891/* 2892 * XXX: the disk media and sector size is only really able to change 2893 * XXX: while the device is closed. 2894 */ 2895static int 2896cdcheckmedia(struct cam_periph *periph) 2897{ 2898 struct cd_softc *softc; 2899 struct ioc_toc_header *toch; 2900 struct cd_toc_single leadout; 2901 u_int32_t size, toclen; 2902 int error, num_entries, cdindex; 2903 2904 softc = (struct cd_softc *)periph->softc; 2905 2906 cdprevent(periph, PR_PREVENT); 2907 softc->disk->d_sectorsize = 2048; 2908 softc->disk->d_mediasize = 0; 2909 2910 /* 2911 * Get the disc size and block size. If we can't get it, we don't 2912 * have media, most likely. 2913 */ 2914 if ((error = cdsize(periph, &size)) != 0) { 2915 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2916 cdprevent(periph, PR_ALLOW); 2917 return (error); 2918 } else { 2919 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2920 softc->disk->d_sectorsize = softc->params.blksize; 2921 softc->disk->d_mediasize = 2922 (off_t)softc->params.blksize * softc->params.disksize; 2923 } 2924 2925 /* 2926 * Now we check the table of contents. This (currently) is only 2927 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2928 * things like present a separate entry in /dev for each track, 2929 * like that acd(4) driver does. 2930 */ 2931 bzero(&softc->toc, sizeof(softc->toc)); 2932 toch = &softc->toc.header; 2933 /* 2934 * We will get errors here for media that doesn't have a table of 2935 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2936 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2937 * has not been recorded (no complete session) and the Format codes 2938 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2939 * with an INVALID FIELD IN CDB. Devices that are not capable of 2940 * reading an incomplete session on DDC/CD-R/RW media shall report 2941 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2942 * 2943 * So this isn't fatal if we can't read the table of contents, it 2944 * just means that the user won't be able to issue the play tracks 2945 * ioctl, and likely lots of other stuff won't work either. They 2946 * need to burn the CD before we can do a whole lot with it. So 2947 * we don't print anything here if we get an error back. 2948 */ 2949 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2950 SF_NO_PRINT); 2951 /* 2952 * Errors in reading the table of contents aren't fatal, we just 2953 * won't have a valid table of contents cached. 2954 */ 2955 if (error != 0) { 2956 error = 0; 2957 bzero(&softc->toc, sizeof(softc->toc)); 2958 goto bailout; 2959 } 2960 2961 if (softc->quirks & CD_Q_BCD_TRACKS) { 2962 toch->starting_track = bcd2bin(toch->starting_track); 2963 toch->ending_track = bcd2bin(toch->ending_track); 2964 } 2965 2966 /* Number of TOC entries, plus leadout */ 2967 num_entries = (toch->ending_track - toch->starting_track) + 2; 2968 2969 if (num_entries <= 0) 2970 goto bailout; 2971 2972 toclen = num_entries * sizeof(struct cd_toc_entry); 2973 2974 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2975 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2976 SF_NO_PRINT); 2977 if (error != 0) { 2978 error = 0; 2979 bzero(&softc->toc, sizeof(softc->toc)); 2980 goto bailout; 2981 } 2982 2983 if (softc->quirks & CD_Q_BCD_TRACKS) { 2984 toch->starting_track = bcd2bin(toch->starting_track); 2985 toch->ending_track = bcd2bin(toch->ending_track); 2986 } 2987 /* 2988 * XXX KDM is this necessary? Probably only if the drive doesn't 2989 * return leadout information with the table of contents. 2990 */ 2991 cdindex = toch->starting_track + num_entries -1; 2992 if (cdindex == toch->ending_track + 1) { 2993 2994 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2995 (u_int8_t *)&leadout, sizeof(leadout), 2996 SF_NO_PRINT); 2997 if (error != 0) { 2998 error = 0; 2999 goto bailout; 3000 } 3001 softc->toc.entries[cdindex - toch->starting_track] = 3002 leadout.entry; 3003 } 3004 if (softc->quirks & CD_Q_BCD_TRACKS) { 3005 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3006 softc->toc.entries[cdindex].track = 3007 bcd2bin(softc->toc.entries[cdindex].track); 3008 } 3009 } 3010 3011 softc->flags |= CD_FLAG_VALID_TOC; 3012 3013 /* If the first track is audio, correct sector size. */ 3014 if ((softc->toc.entries[0].control & 4) == 0) { 3015 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3016 softc->disk->d_mediasize = 3017 (off_t)softc->params.blksize * softc->params.disksize; 3018 } 3019 3020bailout: 3021 3022 /* 3023 * We unconditionally (re)set the blocksize each time the 3024 * CD device is opened. This is because the CD can change, 3025 * and therefore the blocksize might change. 3026 * XXX problems here if some slice or partition is still 3027 * open with the old size? 3028 */ 3029 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3030 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3031 softc->disk->d_devstat->block_size = softc->params.blksize; 3032 3033 return (error); 3034} 3035 3036static int 3037cdsize(struct cam_periph *periph, u_int32_t *size) 3038{ 3039 struct cd_softc *softc; 3040 union ccb *ccb; 3041 struct scsi_read_capacity_data *rcap_buf; 3042 int error; 3043 3044 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3045 3046 softc = (struct cd_softc *)periph->softc; 3047 3048 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3049 3050 /* XXX Should be M_WAITOK */ 3051 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3052 M_SCSICD, M_NOWAIT | M_ZERO); 3053 if (rcap_buf == NULL) 3054 return (ENOMEM); 3055 3056 scsi_read_capacity(&ccb->csio, 3057 /*retries*/ cd_retry_count, 3058 cddone, 3059 MSG_SIMPLE_Q_TAG, 3060 rcap_buf, 3061 SSD_FULL_SIZE, 3062 /* timeout */20000); 3063 3064 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3065 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3066 3067 xpt_release_ccb(ccb); 3068 3069 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3070 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3071 /* Make sure we got at least some block size. */ 3072 if (error == 0 && softc->params.blksize == 0) 3073 error = EIO; 3074 /* 3075 * SCSI-3 mandates that the reported blocksize shall be 2048. 3076 * Older drives sometimes report funny values, trim it down to 3077 * 2048, or other parts of the kernel will get confused. 3078 * 3079 * XXX we leave drives alone that might report 512 bytes, as 3080 * well as drives reporting more weird sizes like perhaps 4K. 3081 */ 3082 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3083 softc->params.blksize = 2048; 3084 3085 free(rcap_buf, M_SCSICD); 3086 *size = softc->params.disksize; 3087 3088 return (error); 3089 3090} 3091 3092static int 3093cd6byteworkaround(union ccb *ccb) 3094{ 3095 u_int8_t *cdb; 3096 struct cam_periph *periph; 3097 struct cd_softc *softc; 3098 struct cd_mode_params *params; 3099 int frozen, found; 3100 3101 periph = xpt_path_periph(ccb->ccb_h.path); 3102 softc = (struct cd_softc *)periph->softc; 3103 3104 cdb = ccb->csio.cdb_io.cdb_bytes; 3105 3106 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3107 || ((cdb[0] != MODE_SENSE_6) 3108 && (cdb[0] != MODE_SELECT_6))) 3109 return (0); 3110 3111 /* 3112 * Because there is no convenient place to stash the overall 3113 * cd_mode_params structure pointer, we have to grab it like this. 3114 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3115 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3116 * 3117 * XXX It would be nice if, at some point, we could increase the 3118 * number of available peripheral private pointers. Both pointers 3119 * are currently used in most every peripheral driver. 3120 */ 3121 found = 0; 3122 3123 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3124 if (params->mode_buf == ccb->csio.data_ptr) { 3125 found = 1; 3126 break; 3127 } 3128 } 3129 3130 /* 3131 * This shouldn't happen. All mode sense and mode select 3132 * operations in the cd(4) driver MUST go through cdgetmode() and 3133 * cdsetmode()! 3134 */ 3135 if (found == 0) { 3136 xpt_print(periph->path, 3137 "mode buffer not found in mode queue!\n"); 3138 return (0); 3139 } 3140 3141 params->cdb_size = 10; 3142 softc->minimum_command_size = 10; 3143 xpt_print(ccb->ccb_h.path, 3144 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3145 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3146 3147 if (cdb[0] == MODE_SENSE_6) { 3148 struct scsi_mode_sense_10 ms10; 3149 struct scsi_mode_sense_6 *ms6; 3150 int len; 3151 3152 ms6 = (struct scsi_mode_sense_6 *)cdb; 3153 3154 bzero(&ms10, sizeof(ms10)); 3155 ms10.opcode = MODE_SENSE_10; 3156 ms10.byte2 = ms6->byte2; 3157 ms10.page = ms6->page; 3158 3159 /* 3160 * 10 byte mode header, block descriptor, 3161 * sizeof(union cd_pages) 3162 */ 3163 len = sizeof(struct cd_mode_data_10); 3164 ccb->csio.dxfer_len = len; 3165 3166 scsi_ulto2b(len, ms10.length); 3167 ms10.control = ms6->control; 3168 bcopy(&ms10, cdb, 10); 3169 ccb->csio.cdb_len = 10; 3170 } else { 3171 struct scsi_mode_select_10 ms10; 3172 struct scsi_mode_select_6 *ms6; 3173 struct scsi_mode_header_6 *header6; 3174 struct scsi_mode_header_10 *header10; 3175 struct scsi_mode_page_header *page_header; 3176 int blk_desc_len, page_num, page_size, len; 3177 3178 ms6 = (struct scsi_mode_select_6 *)cdb; 3179 3180 bzero(&ms10, sizeof(ms10)); 3181 ms10.opcode = MODE_SELECT_10; 3182 ms10.byte2 = ms6->byte2; 3183 3184 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3185 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3186 3187 page_header = find_mode_page_6(header6); 3188 page_num = page_header->page_code; 3189 3190 blk_desc_len = header6->blk_desc_len; 3191 3192 page_size = cdgetpagesize(page_num); 3193 3194 if (page_size != (page_header->page_length + 3195 sizeof(*page_header))) 3196 page_size = page_header->page_length + 3197 sizeof(*page_header); 3198 3199 len = sizeof(*header10) + blk_desc_len + page_size; 3200 3201 len = min(params->alloc_len, len); 3202 3203 /* 3204 * Since the 6 byte parameter header is shorter than the 10 3205 * byte parameter header, we need to copy the actual mode 3206 * page data, and the block descriptor, if any, so things wind 3207 * up in the right place. The regions will overlap, but 3208 * bcopy() does the right thing. 3209 */ 3210 bcopy(params->mode_buf + sizeof(*header6), 3211 params->mode_buf + sizeof(*header10), 3212 len - sizeof(*header10)); 3213 3214 /* Make sure these fields are set correctly. */ 3215 scsi_ulto2b(0, header10->data_length); 3216 header10->medium_type = 0; 3217 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3218 3219 ccb->csio.dxfer_len = len; 3220 3221 scsi_ulto2b(len, ms10.length); 3222 ms10.control = ms6->control; 3223 bcopy(&ms10, cdb, 10); 3224 ccb->csio.cdb_len = 10; 3225 } 3226 3227 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3228 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3229 xpt_action(ccb); 3230 if (frozen) { 3231 cam_release_devq(ccb->ccb_h.path, 3232 /*relsim_flags*/0, 3233 /*openings*/0, 3234 /*timeout*/0, 3235 /*getcount_only*/0); 3236 } 3237 3238 return (ERESTART); 3239} 3240 3241static int 3242cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3243{ 3244 struct cd_softc *softc; 3245 struct cam_periph *periph; 3246 int error, error_code, sense_key, asc, ascq; 3247 3248 periph = xpt_path_periph(ccb->ccb_h.path); 3249 softc = (struct cd_softc *)periph->softc; 3250 3251 error = 0; 3252 3253 /* 3254 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3255 * CDB comes back with this particular error, try transforming it 3256 * into the 10 byte version. 3257 */ 3258 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3259 error = cd6byteworkaround(ccb); 3260 } else if (scsi_extract_sense_ccb(ccb, 3261 &error_code, &sense_key, &asc, &ascq)) { 3262 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3263 error = cd6byteworkaround(ccb); 3264 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3265 asc == 0x28 && ascq == 0x00) 3266 disk_media_changed(softc->disk, M_NOWAIT); 3267 else if (sense_key == SSD_KEY_NOT_READY && 3268 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3269 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3270 disk_media_gone(softc->disk, M_NOWAIT); 3271 } 3272 } 3273 3274 if (error == ERESTART) 3275 return (error); 3276 3277 /* 3278 * XXX 3279 * Until we have a better way of doing pack validation, 3280 * don't treat UAs as errors. 3281 */ 3282 sense_flags |= SF_RETRY_UA; 3283 return (cam_periph_error(ccb, cam_flags, sense_flags, 3284 &softc->saved_ccb)); 3285} 3286 3287static void 3288cdmediapoll(void *arg) 3289{ 3290 struct cam_periph *periph = arg; 3291 struct cd_softc *softc = periph->softc; 3292 3293 if (softc->flags & CD_FLAG_CHANGER) 3294 return; 3295 3296 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 3297 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3298 softc->tur = 1; 3299 xpt_schedule(periph, CAM_PRIORITY_DEV); 3300 } 3301 } 3302 /* Queue us up again */ 3303 if (cd_poll_period != 0) 3304 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3305} 3306 3307/* 3308 * Read table of contents 3309 */ 3310static int 3311cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3312 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3313{ 3314 struct scsi_read_toc *scsi_cmd; 3315 u_int32_t ntoc; 3316 struct ccb_scsiio *csio; 3317 union ccb *ccb; 3318 int error; 3319 3320 ntoc = len; 3321 error = 0; 3322 3323 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3324 3325 csio = &ccb->csio; 3326 3327 cam_fill_csio(csio, 3328 /* retries */ cd_retry_count, 3329 /* cbfcnp */ cddone, 3330 /* flags */ CAM_DIR_IN, 3331 /* tag_action */ MSG_SIMPLE_Q_TAG, 3332 /* data_ptr */ data, 3333 /* dxfer_len */ len, 3334 /* sense_len */ SSD_FULL_SIZE, 3335 sizeof(struct scsi_read_toc), 3336 /* timeout */ 50000); 3337 3338 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3339 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3340 3341 if (mode == CD_MSF_FORMAT) 3342 scsi_cmd->byte2 |= CD_MSF; 3343 scsi_cmd->from_track = start; 3344 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3345 scsi_cmd->data_len[0] = (ntoc) >> 8; 3346 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3347 3348 scsi_cmd->op_code = READ_TOC; 3349 3350 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3351 /*sense_flags*/SF_RETRY_UA | sense_flags); 3352 3353 xpt_release_ccb(ccb); 3354 3355 return(error); 3356} 3357 3358static int 3359cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3360 u_int32_t format, int track, 3361 struct cd_sub_channel_info *data, u_int32_t len) 3362{ 3363 struct scsi_read_subchannel *scsi_cmd; 3364 struct ccb_scsiio *csio; 3365 union ccb *ccb; 3366 int error; 3367 3368 error = 0; 3369 3370 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3371 3372 csio = &ccb->csio; 3373 3374 cam_fill_csio(csio, 3375 /* retries */ cd_retry_count, 3376 /* cbfcnp */ cddone, 3377 /* flags */ CAM_DIR_IN, 3378 /* tag_action */ MSG_SIMPLE_Q_TAG, 3379 /* data_ptr */ (u_int8_t *)data, 3380 /* dxfer_len */ len, 3381 /* sense_len */ SSD_FULL_SIZE, 3382 sizeof(struct scsi_read_subchannel), 3383 /* timeout */ 50000); 3384 3385 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3386 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3387 3388 scsi_cmd->op_code = READ_SUBCHANNEL; 3389 if (mode == CD_MSF_FORMAT) 3390 scsi_cmd->byte1 |= CD_MSF; 3391 scsi_cmd->byte2 = SRS_SUBQ; 3392 scsi_cmd->subchan_format = format; 3393 scsi_cmd->track = track; 3394 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3395 scsi_cmd->control = 0; 3396 3397 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3398 /*sense_flags*/SF_RETRY_UA); 3399 3400 xpt_release_ccb(ccb); 3401 3402 return(error); 3403} 3404 3405 3406/* 3407 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3408 * routine. See comments in cd6byteworkaround() for details. 3409 */ 3410static int 3411cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3412 u_int32_t page) 3413{ 3414 struct ccb_scsiio *csio; 3415 struct cd_softc *softc; 3416 union ccb *ccb; 3417 int param_len; 3418 int error; 3419 3420 softc = (struct cd_softc *)periph->softc; 3421 3422 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3423 3424 csio = &ccb->csio; 3425 3426 data->cdb_size = softc->minimum_command_size; 3427 if (data->cdb_size < 10) 3428 param_len = sizeof(struct cd_mode_data); 3429 else 3430 param_len = sizeof(struct cd_mode_data_10); 3431 3432 /* Don't say we've got more room than we actually allocated */ 3433 param_len = min(param_len, data->alloc_len); 3434 3435 scsi_mode_sense_len(csio, 3436 /* retries */ cd_retry_count, 3437 /* cbfcnp */ cddone, 3438 /* tag_action */ MSG_SIMPLE_Q_TAG, 3439 /* dbd */ 0, 3440 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3441 /* page */ page, 3442 /* param_buf */ data->mode_buf, 3443 /* param_len */ param_len, 3444 /* minimum_cmd_size */ softc->minimum_command_size, 3445 /* sense_len */ SSD_FULL_SIZE, 3446 /* timeout */ 50000); 3447 3448 /* 3449 * It would be nice not to have to do this, but there's no 3450 * available pointer in the CCB that would allow us to stuff the 3451 * mode params structure in there and retrieve it in 3452 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3453 * lets the caller know what CDB size we ended up using, so they 3454 * can find the actual mode page offset. 3455 */ 3456 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3457 3458 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3459 /*sense_flags*/SF_RETRY_UA); 3460 3461 xpt_release_ccb(ccb); 3462 3463 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3464 3465 /* 3466 * This is a bit of belt-and-suspenders checking, but if we run 3467 * into a situation where the target sends back multiple block 3468 * descriptors, we might not have enough space in the buffer to 3469 * see the whole mode page. Better to return an error than 3470 * potentially access memory beyond our malloced region. 3471 */ 3472 if (error == 0) { 3473 u_int32_t data_len; 3474 3475 if (data->cdb_size == 10) { 3476 struct scsi_mode_header_10 *hdr10; 3477 3478 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3479 data_len = scsi_2btoul(hdr10->data_length); 3480 data_len += sizeof(hdr10->data_length); 3481 } else { 3482 struct scsi_mode_header_6 *hdr6; 3483 3484 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3485 data_len = hdr6->data_length; 3486 data_len += sizeof(hdr6->data_length); 3487 } 3488 3489 /* 3490 * Complain if there is more mode data available than we 3491 * allocated space for. This could potentially happen if 3492 * we miscalculated the page length for some reason, if the 3493 * drive returns multiple block descriptors, or if it sets 3494 * the data length incorrectly. 3495 */ 3496 if (data_len > data->alloc_len) { 3497 xpt_print(periph->path, "allocated modepage %d length " 3498 "%d < returned length %d\n", page, data->alloc_len, 3499 data_len); 3500 error = ENOSPC; 3501 } 3502 } 3503 return (error); 3504} 3505 3506/* 3507 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3508 * routine. See comments in cd6byteworkaround() for details. 3509 */ 3510static int 3511cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3512{ 3513 struct ccb_scsiio *csio; 3514 struct cd_softc *softc; 3515 union ccb *ccb; 3516 int cdb_size, param_len; 3517 int error; 3518 3519 softc = (struct cd_softc *)periph->softc; 3520 3521 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3522 3523 csio = &ccb->csio; 3524 3525 error = 0; 3526 3527 /* 3528 * If the data is formatted for the 10 byte version of the mode 3529 * select parameter list, we need to use the 10 byte CDB. 3530 * Otherwise, we use whatever the stored minimum command size. 3531 */ 3532 if (data->cdb_size == 10) 3533 cdb_size = data->cdb_size; 3534 else 3535 cdb_size = softc->minimum_command_size; 3536 3537 if (cdb_size >= 10) { 3538 struct scsi_mode_header_10 *mode_header; 3539 u_int32_t data_len; 3540 3541 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3542 3543 data_len = scsi_2btoul(mode_header->data_length); 3544 3545 scsi_ulto2b(0, mode_header->data_length); 3546 /* 3547 * SONY drives do not allow a mode select with a medium_type 3548 * value that has just been returned by a mode sense; use a 3549 * medium_type of 0 (Default) instead. 3550 */ 3551 mode_header->medium_type = 0; 3552 3553 /* 3554 * Pass back whatever the drive passed to us, plus the size 3555 * of the data length field. 3556 */ 3557 param_len = data_len + sizeof(mode_header->data_length); 3558 3559 } else { 3560 struct scsi_mode_header_6 *mode_header; 3561 3562 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3563 3564 param_len = mode_header->data_length + 1; 3565 3566 mode_header->data_length = 0; 3567 /* 3568 * SONY drives do not allow a mode select with a medium_type 3569 * value that has just been returned by a mode sense; use a 3570 * medium_type of 0 (Default) instead. 3571 */ 3572 mode_header->medium_type = 0; 3573 } 3574 3575 /* Don't say we've got more room than we actually allocated */ 3576 param_len = min(param_len, data->alloc_len); 3577 3578 scsi_mode_select_len(csio, 3579 /* retries */ cd_retry_count, 3580 /* cbfcnp */ cddone, 3581 /* tag_action */ MSG_SIMPLE_Q_TAG, 3582 /* scsi_page_fmt */ 1, 3583 /* save_pages */ 0, 3584 /* param_buf */ data->mode_buf, 3585 /* param_len */ param_len, 3586 /* minimum_cmd_size */ cdb_size, 3587 /* sense_len */ SSD_FULL_SIZE, 3588 /* timeout */ 50000); 3589 3590 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3591 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3592 3593 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3594 /*sense_flags*/SF_RETRY_UA); 3595 3596 xpt_release_ccb(ccb); 3597 3598 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3599 3600 return (error); 3601} 3602 3603 3604static int 3605cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3606{ 3607 struct ccb_scsiio *csio; 3608 union ccb *ccb; 3609 int error; 3610 u_int8_t cdb_len; 3611 3612 error = 0; 3613 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3614 csio = &ccb->csio; 3615 /* 3616 * Use the smallest possible command to perform the operation. 3617 */ 3618 if ((len & 0xffff0000) == 0) { 3619 /* 3620 * We can fit in a 10 byte cdb. 3621 */ 3622 struct scsi_play_10 *scsi_cmd; 3623 3624 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3625 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3626 scsi_cmd->op_code = PLAY_10; 3627 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3628 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3629 cdb_len = sizeof(*scsi_cmd); 3630 } else { 3631 struct scsi_play_12 *scsi_cmd; 3632 3633 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3634 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3635 scsi_cmd->op_code = PLAY_12; 3636 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3637 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3638 cdb_len = sizeof(*scsi_cmd); 3639 } 3640 cam_fill_csio(csio, 3641 /*retries*/ cd_retry_count, 3642 cddone, 3643 /*flags*/CAM_DIR_NONE, 3644 MSG_SIMPLE_Q_TAG, 3645 /*dataptr*/NULL, 3646 /*datalen*/0, 3647 /*sense_len*/SSD_FULL_SIZE, 3648 cdb_len, 3649 /*timeout*/50 * 1000); 3650 3651 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3652 /*sense_flags*/SF_RETRY_UA); 3653 3654 xpt_release_ccb(ccb); 3655 3656 return(error); 3657} 3658 3659static int 3660cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3661 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3662{ 3663 struct scsi_play_msf *scsi_cmd; 3664 struct ccb_scsiio *csio; 3665 union ccb *ccb; 3666 int error; 3667 3668 error = 0; 3669 3670 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3671 3672 csio = &ccb->csio; 3673 3674 cam_fill_csio(csio, 3675 /* retries */ cd_retry_count, 3676 /* cbfcnp */ cddone, 3677 /* flags */ CAM_DIR_NONE, 3678 /* tag_action */ MSG_SIMPLE_Q_TAG, 3679 /* data_ptr */ NULL, 3680 /* dxfer_len */ 0, 3681 /* sense_len */ SSD_FULL_SIZE, 3682 sizeof(struct scsi_play_msf), 3683 /* timeout */ 50000); 3684 3685 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3686 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3687 3688 scsi_cmd->op_code = PLAY_MSF; 3689 scsi_cmd->start_m = startm; 3690 scsi_cmd->start_s = starts; 3691 scsi_cmd->start_f = startf; 3692 scsi_cmd->end_m = endm; 3693 scsi_cmd->end_s = ends; 3694 scsi_cmd->end_f = endf; 3695 3696 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3697 /*sense_flags*/SF_RETRY_UA); 3698 3699 xpt_release_ccb(ccb); 3700 3701 return(error); 3702} 3703 3704 3705static int 3706cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3707 u_int32_t etrack, u_int32_t eindex) 3708{ 3709 struct scsi_play_track *scsi_cmd; 3710 struct ccb_scsiio *csio; 3711 union ccb *ccb; 3712 int error; 3713 3714 error = 0; 3715 3716 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3717 3718 csio = &ccb->csio; 3719 3720 cam_fill_csio(csio, 3721 /* retries */ cd_retry_count, 3722 /* cbfcnp */ cddone, 3723 /* flags */ CAM_DIR_NONE, 3724 /* tag_action */ MSG_SIMPLE_Q_TAG, 3725 /* data_ptr */ NULL, 3726 /* dxfer_len */ 0, 3727 /* sense_len */ SSD_FULL_SIZE, 3728 sizeof(struct scsi_play_track), 3729 /* timeout */ 50000); 3730 3731 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3732 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3733 3734 scsi_cmd->op_code = PLAY_TRACK; 3735 scsi_cmd->start_track = strack; 3736 scsi_cmd->start_index = sindex; 3737 scsi_cmd->end_track = etrack; 3738 scsi_cmd->end_index = eindex; 3739 3740 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3741 /*sense_flags*/SF_RETRY_UA); 3742 3743 xpt_release_ccb(ccb); 3744 3745 return(error); 3746} 3747 3748static int 3749cdpause(struct cam_periph *periph, u_int32_t go) 3750{ 3751 struct scsi_pause *scsi_cmd; 3752 struct ccb_scsiio *csio; 3753 union ccb *ccb; 3754 int error; 3755 3756 error = 0; 3757 3758 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3759 3760 csio = &ccb->csio; 3761 3762 cam_fill_csio(csio, 3763 /* retries */ cd_retry_count, 3764 /* cbfcnp */ cddone, 3765 /* flags */ CAM_DIR_NONE, 3766 /* tag_action */ MSG_SIMPLE_Q_TAG, 3767 /* data_ptr */ NULL, 3768 /* dxfer_len */ 0, 3769 /* sense_len */ SSD_FULL_SIZE, 3770 sizeof(struct scsi_pause), 3771 /* timeout */ 50000); 3772 3773 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3774 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3775 3776 scsi_cmd->op_code = PAUSE; 3777 scsi_cmd->resume = go; 3778 3779 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3780 /*sense_flags*/SF_RETRY_UA); 3781 3782 xpt_release_ccb(ccb); 3783 3784 return(error); 3785} 3786 3787static int 3788cdstartunit(struct cam_periph *periph, int load) 3789{ 3790 union ccb *ccb; 3791 int error; 3792 3793 error = 0; 3794 3795 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3796 3797 scsi_start_stop(&ccb->csio, 3798 /* retries */ cd_retry_count, 3799 /* cbfcnp */ cddone, 3800 /* tag_action */ MSG_SIMPLE_Q_TAG, 3801 /* start */ TRUE, 3802 /* load_eject */ load, 3803 /* immediate */ FALSE, 3804 /* sense_len */ SSD_FULL_SIZE, 3805 /* timeout */ 50000); 3806 3807 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3808 /*sense_flags*/SF_RETRY_UA); 3809 3810 xpt_release_ccb(ccb); 3811 3812 return(error); 3813} 3814 3815static int 3816cdstopunit(struct cam_periph *periph, u_int32_t eject) 3817{ 3818 union ccb *ccb; 3819 int error; 3820 3821 error = 0; 3822 3823 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3824 3825 scsi_start_stop(&ccb->csio, 3826 /* retries */ cd_retry_count, 3827 /* cbfcnp */ cddone, 3828 /* tag_action */ MSG_SIMPLE_Q_TAG, 3829 /* start */ FALSE, 3830 /* load_eject */ eject, 3831 /* immediate */ FALSE, 3832 /* sense_len */ SSD_FULL_SIZE, 3833 /* timeout */ 50000); 3834 3835 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3836 /*sense_flags*/SF_RETRY_UA); 3837 3838 xpt_release_ccb(ccb); 3839 3840 return(error); 3841} 3842 3843static int 3844cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3845{ 3846 struct scsi_set_speed *scsi_cmd; 3847 struct ccb_scsiio *csio; 3848 union ccb *ccb; 3849 int error; 3850 3851 error = 0; 3852 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3853 csio = &ccb->csio; 3854 3855 /* Preserve old behavior: units in multiples of CDROM speed */ 3856 if (rdspeed < 177) 3857 rdspeed *= 177; 3858 if (wrspeed < 177) 3859 wrspeed *= 177; 3860 3861 cam_fill_csio(csio, 3862 /* retries */ cd_retry_count, 3863 /* cbfcnp */ cddone, 3864 /* flags */ CAM_DIR_NONE, 3865 /* tag_action */ MSG_SIMPLE_Q_TAG, 3866 /* data_ptr */ NULL, 3867 /* dxfer_len */ 0, 3868 /* sense_len */ SSD_FULL_SIZE, 3869 sizeof(struct scsi_set_speed), 3870 /* timeout */ 50000); 3871 3872 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3873 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3874 3875 scsi_cmd->opcode = SET_CD_SPEED; 3876 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3877 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3878 3879 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3880 /*sense_flags*/SF_RETRY_UA); 3881 3882 xpt_release_ccb(ccb); 3883 3884 return(error); 3885} 3886 3887static int 3888cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3889{ 3890 union ccb *ccb; 3891 u_int8_t *databuf; 3892 u_int32_t lba; 3893 int error; 3894 int length; 3895 3896 error = 0; 3897 databuf = NULL; 3898 lba = 0; 3899 3900 switch (authinfo->format) { 3901 case DVD_REPORT_AGID: 3902 length = sizeof(struct scsi_report_key_data_agid); 3903 break; 3904 case DVD_REPORT_CHALLENGE: 3905 length = sizeof(struct scsi_report_key_data_challenge); 3906 break; 3907 case DVD_REPORT_KEY1: 3908 length = sizeof(struct scsi_report_key_data_key1_key2); 3909 break; 3910 case DVD_REPORT_TITLE_KEY: 3911 length = sizeof(struct scsi_report_key_data_title); 3912 /* The lba field is only set for the title key */ 3913 lba = authinfo->lba; 3914 break; 3915 case DVD_REPORT_ASF: 3916 length = sizeof(struct scsi_report_key_data_asf); 3917 break; 3918 case DVD_REPORT_RPC: 3919 length = sizeof(struct scsi_report_key_data_rpc); 3920 break; 3921 case DVD_INVALIDATE_AGID: 3922 length = 0; 3923 break; 3924 default: 3925 return (EINVAL); 3926 } 3927 3928 if (length != 0) { 3929 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3930 } else 3931 databuf = NULL; 3932 3933 cam_periph_lock(periph); 3934 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3935 3936 scsi_report_key(&ccb->csio, 3937 /* retries */ cd_retry_count, 3938 /* cbfcnp */ cddone, 3939 /* tag_action */ MSG_SIMPLE_Q_TAG, 3940 /* lba */ lba, 3941 /* agid */ authinfo->agid, 3942 /* key_format */ authinfo->format, 3943 /* data_ptr */ databuf, 3944 /* dxfer_len */ length, 3945 /* sense_len */ SSD_FULL_SIZE, 3946 /* timeout */ 50000); 3947 3948 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3949 /*sense_flags*/SF_RETRY_UA); 3950 3951 if (error != 0) 3952 goto bailout; 3953 3954 if (ccb->csio.resid != 0) { 3955 xpt_print(periph->path, "warning, residual for report key " 3956 "command is %d\n", ccb->csio.resid); 3957 } 3958 3959 switch(authinfo->format) { 3960 case DVD_REPORT_AGID: { 3961 struct scsi_report_key_data_agid *agid_data; 3962 3963 agid_data = (struct scsi_report_key_data_agid *)databuf; 3964 3965 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3966 RKD_AGID_SHIFT; 3967 break; 3968 } 3969 case DVD_REPORT_CHALLENGE: { 3970 struct scsi_report_key_data_challenge *chal_data; 3971 3972 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3973 3974 bcopy(chal_data->challenge_key, authinfo->keychal, 3975 min(sizeof(chal_data->challenge_key), 3976 sizeof(authinfo->keychal))); 3977 break; 3978 } 3979 case DVD_REPORT_KEY1: { 3980 struct scsi_report_key_data_key1_key2 *key1_data; 3981 3982 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3983 3984 bcopy(key1_data->key1, authinfo->keychal, 3985 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3986 break; 3987 } 3988 case DVD_REPORT_TITLE_KEY: { 3989 struct scsi_report_key_data_title *title_data; 3990 3991 title_data = (struct scsi_report_key_data_title *)databuf; 3992 3993 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3994 RKD_TITLE_CPM_SHIFT; 3995 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3996 RKD_TITLE_CP_SEC_SHIFT; 3997 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3998 RKD_TITLE_CMGS_SHIFT; 3999 bcopy(title_data->title_key, authinfo->keychal, 4000 min(sizeof(title_data->title_key), 4001 sizeof(authinfo->keychal))); 4002 break; 4003 } 4004 case DVD_REPORT_ASF: { 4005 struct scsi_report_key_data_asf *asf_data; 4006 4007 asf_data = (struct scsi_report_key_data_asf *)databuf; 4008 4009 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 4010 break; 4011 } 4012 case DVD_REPORT_RPC: { 4013 struct scsi_report_key_data_rpc *rpc_data; 4014 4015 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 4016 4017 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 4018 RKD_RPC_TYPE_SHIFT; 4019 authinfo->vend_rsts = 4020 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 4021 RKD_RPC_VENDOR_RESET_SHIFT; 4022 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4023 authinfo->region = rpc_data->region_mask; 4024 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4025 break; 4026 } 4027 case DVD_INVALIDATE_AGID: 4028 break; 4029 default: 4030 /* This should be impossible, since we checked above */ 4031 error = EINVAL; 4032 goto bailout; 4033 break; /* NOTREACHED */ 4034 } 4035 4036bailout: 4037 xpt_release_ccb(ccb); 4038 cam_periph_unlock(periph); 4039 4040 if (databuf != NULL) 4041 free(databuf, M_DEVBUF); 4042 4043 return(error); 4044} 4045 4046static int 4047cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4048{ 4049 union ccb *ccb; 4050 u_int8_t *databuf; 4051 int length; 4052 int error; 4053 4054 error = 0; 4055 databuf = NULL; 4056 4057 switch(authinfo->format) { 4058 case DVD_SEND_CHALLENGE: { 4059 struct scsi_report_key_data_challenge *challenge_data; 4060 4061 length = sizeof(*challenge_data); 4062 4063 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4064 4065 databuf = (u_int8_t *)challenge_data; 4066 4067 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4068 challenge_data->data_len); 4069 4070 bcopy(authinfo->keychal, challenge_data->challenge_key, 4071 min(sizeof(authinfo->keychal), 4072 sizeof(challenge_data->challenge_key))); 4073 break; 4074 } 4075 case DVD_SEND_KEY2: { 4076 struct scsi_report_key_data_key1_key2 *key2_data; 4077 4078 length = sizeof(*key2_data); 4079 4080 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4081 4082 databuf = (u_int8_t *)key2_data; 4083 4084 scsi_ulto2b(length - sizeof(key2_data->data_len), 4085 key2_data->data_len); 4086 4087 bcopy(authinfo->keychal, key2_data->key1, 4088 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4089 4090 break; 4091 } 4092 case DVD_SEND_RPC: { 4093 struct scsi_send_key_data_rpc *rpc_data; 4094 4095 length = sizeof(*rpc_data); 4096 4097 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4098 4099 databuf = (u_int8_t *)rpc_data; 4100 4101 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4102 rpc_data->data_len); 4103 4104 rpc_data->region_code = authinfo->region; 4105 break; 4106 } 4107 default: 4108 return (EINVAL); 4109 } 4110 4111 cam_periph_lock(periph); 4112 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4113 4114 scsi_send_key(&ccb->csio, 4115 /* retries */ cd_retry_count, 4116 /* cbfcnp */ cddone, 4117 /* tag_action */ MSG_SIMPLE_Q_TAG, 4118 /* agid */ authinfo->agid, 4119 /* key_format */ authinfo->format, 4120 /* data_ptr */ databuf, 4121 /* dxfer_len */ length, 4122 /* sense_len */ SSD_FULL_SIZE, 4123 /* timeout */ 50000); 4124 4125 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4126 /*sense_flags*/SF_RETRY_UA); 4127 4128 xpt_release_ccb(ccb); 4129 cam_periph_unlock(periph); 4130 4131 if (databuf != NULL) 4132 free(databuf, M_DEVBUF); 4133 4134 return(error); 4135} 4136 4137static int 4138cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4139{ 4140 union ccb *ccb; 4141 u_int8_t *databuf; 4142 u_int32_t address; 4143 int error; 4144 int length; 4145 4146 error = 0; 4147 databuf = NULL; 4148 /* The address is reserved for many of the formats */ 4149 address = 0; 4150 4151 switch(dvdstruct->format) { 4152 case DVD_STRUCT_PHYSICAL: 4153 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4154 break; 4155 case DVD_STRUCT_COPYRIGHT: 4156 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4157 break; 4158 case DVD_STRUCT_DISCKEY: 4159 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4160 break; 4161 case DVD_STRUCT_BCA: 4162 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4163 break; 4164 case DVD_STRUCT_MANUFACT: 4165 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4166 break; 4167 case DVD_STRUCT_CMI: 4168 return (ENODEV); 4169 case DVD_STRUCT_PROTDISCID: 4170 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4171 break; 4172 case DVD_STRUCT_DISCKEYBLOCK: 4173 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4174 break; 4175 case DVD_STRUCT_DDS: 4176 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4177 break; 4178 case DVD_STRUCT_MEDIUM_STAT: 4179 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4180 break; 4181 case DVD_STRUCT_SPARE_AREA: 4182 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4183 break; 4184 case DVD_STRUCT_RMD_LAST: 4185 return (ENODEV); 4186 case DVD_STRUCT_RMD_RMA: 4187 return (ENODEV); 4188 case DVD_STRUCT_PRERECORDED: 4189 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4190 break; 4191 case DVD_STRUCT_UNIQUEID: 4192 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4193 break; 4194 case DVD_STRUCT_DCB: 4195 return (ENODEV); 4196 case DVD_STRUCT_LIST: 4197 /* 4198 * This is the maximum allocation length for the READ DVD 4199 * STRUCTURE command. There's nothing in the MMC3 spec 4200 * that indicates a limit in the amount of data that can 4201 * be returned from this call, other than the limits 4202 * imposed by the 2-byte length variables. 4203 */ 4204 length = 65535; 4205 break; 4206 default: 4207 return (EINVAL); 4208 } 4209 4210 if (length != 0) { 4211 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4212 } else 4213 databuf = NULL; 4214 4215 cam_periph_lock(periph); 4216 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4217 4218 scsi_read_dvd_structure(&ccb->csio, 4219 /* retries */ cd_retry_count, 4220 /* cbfcnp */ cddone, 4221 /* tag_action */ MSG_SIMPLE_Q_TAG, 4222 /* lba */ address, 4223 /* layer_number */ dvdstruct->layer_num, 4224 /* key_format */ dvdstruct->format, 4225 /* agid */ dvdstruct->agid, 4226 /* data_ptr */ databuf, 4227 /* dxfer_len */ length, 4228 /* sense_len */ SSD_FULL_SIZE, 4229 /* timeout */ 50000); 4230 4231 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4232 /*sense_flags*/SF_RETRY_UA); 4233 4234 if (error != 0) 4235 goto bailout; 4236 4237 switch(dvdstruct->format) { 4238 case DVD_STRUCT_PHYSICAL: { 4239 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4240 struct dvd_layer *outlayer; 4241 struct scsi_read_dvd_struct_data_physical *phys_data; 4242 4243 phys_data = 4244 (struct scsi_read_dvd_struct_data_physical *)databuf; 4245 inlayer = &phys_data->layer_desc; 4246 outlayer = (struct dvd_layer *)&dvdstruct->data; 4247 4248 dvdstruct->length = sizeof(*inlayer); 4249 4250 outlayer->book_type = (inlayer->book_type_version & 4251 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4252 outlayer->book_version = (inlayer->book_type_version & 4253 RDSD_BOOK_VERSION_MASK); 4254 outlayer->disc_size = (inlayer->disc_size_max_rate & 4255 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4256 outlayer->max_rate = (inlayer->disc_size_max_rate & 4257 RDSD_MAX_RATE_MASK); 4258 outlayer->nlayers = (inlayer->layer_info & 4259 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4260 outlayer->track_path = (inlayer->layer_info & 4261 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4262 outlayer->layer_type = (inlayer->layer_info & 4263 RDSD_LAYER_TYPE_MASK); 4264 outlayer->linear_density = (inlayer->density & 4265 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4266 outlayer->track_density = (inlayer->density & 4267 RDSD_TRACK_DENSITY_MASK); 4268 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4269 RDSD_BCA_SHIFT; 4270 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4271 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4272 outlayer->end_sector_l0 = 4273 scsi_3btoul(inlayer->end_sector_layer0); 4274 break; 4275 } 4276 case DVD_STRUCT_COPYRIGHT: { 4277 struct scsi_read_dvd_struct_data_copyright *copy_data; 4278 4279 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4280 databuf; 4281 4282 dvdstruct->cpst = copy_data->cps_type; 4283 dvdstruct->rmi = copy_data->region_info; 4284 dvdstruct->length = 0; 4285 4286 break; 4287 } 4288 default: 4289 /* 4290 * Tell the user what the overall length is, no matter 4291 * what we can actually fit in the data buffer. 4292 */ 4293 dvdstruct->length = length - ccb->csio.resid - 4294 sizeof(struct scsi_read_dvd_struct_data_header); 4295 4296 /* 4297 * But only actually copy out the smaller of what we read 4298 * in or what the structure can take. 4299 */ 4300 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4301 dvdstruct->data, 4302 min(sizeof(dvdstruct->data), dvdstruct->length)); 4303 break; 4304 } 4305 4306bailout: 4307 xpt_release_ccb(ccb); 4308 cam_periph_unlock(periph); 4309 4310 if (databuf != NULL) 4311 free(databuf, M_DEVBUF); 4312 4313 return(error); 4314} 4315 4316void 4317scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4318 void (*cbfcnp)(struct cam_periph *, union ccb *), 4319 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4320 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4321 u_int8_t sense_len, u_int32_t timeout) 4322{ 4323 struct scsi_report_key *scsi_cmd; 4324 4325 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4326 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4327 scsi_cmd->opcode = REPORT_KEY; 4328 scsi_ulto4b(lba, scsi_cmd->lba); 4329 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4330 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4331 (key_format & RK_KF_KEYFORMAT_MASK); 4332 4333 cam_fill_csio(csio, 4334 retries, 4335 cbfcnp, 4336 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4337 tag_action, 4338 /*data_ptr*/ data_ptr, 4339 /*dxfer_len*/ dxfer_len, 4340 sense_len, 4341 sizeof(*scsi_cmd), 4342 timeout); 4343} 4344 4345void 4346scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4347 void (*cbfcnp)(struct cam_periph *, union ccb *), 4348 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4349 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4350 u_int32_t timeout) 4351{ 4352 struct scsi_send_key *scsi_cmd; 4353 4354 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4355 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4356 scsi_cmd->opcode = SEND_KEY; 4357 4358 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4359 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4360 (key_format & RK_KF_KEYFORMAT_MASK); 4361 4362 cam_fill_csio(csio, 4363 retries, 4364 cbfcnp, 4365 /*flags*/ CAM_DIR_OUT, 4366 tag_action, 4367 /*data_ptr*/ data_ptr, 4368 /*dxfer_len*/ dxfer_len, 4369 sense_len, 4370 sizeof(*scsi_cmd), 4371 timeout); 4372} 4373 4374 4375void 4376scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4377 void (*cbfcnp)(struct cam_periph *, union ccb *), 4378 u_int8_t tag_action, u_int32_t address, 4379 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4380 u_int8_t *data_ptr, u_int32_t dxfer_len, 4381 u_int8_t sense_len, u_int32_t timeout) 4382{ 4383 struct scsi_read_dvd_structure *scsi_cmd; 4384 4385 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4386 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4387 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4388 4389 scsi_ulto4b(address, scsi_cmd->address); 4390 scsi_cmd->layer_number = layer_number; 4391 scsi_cmd->format = format; 4392 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4393 /* The AGID is the top two bits of this byte */ 4394 scsi_cmd->agid = agid << 6; 4395 4396 cam_fill_csio(csio, 4397 retries, 4398 cbfcnp, 4399 /*flags*/ CAM_DIR_IN, 4400 tag_action, 4401 /*data_ptr*/ data_ptr, 4402 /*dxfer_len*/ dxfer_len, 4403 sense_len, 4404 sizeof(*scsi_cmd), 4405 timeout); 4406} 4407