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("$FreeBSD$"); 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 81 struct cd_params { 82 u_int32_t blksize; 83 u_long disksize; 84 }; 85 86 typedef enum { 87 CD_Q_NONE = 0x00, 88 CD_Q_NO_TOUCH = 0x01, 89 CD_Q_BCD_TRACKS = 0x02, 90 CD_Q_NO_CHANGER = 0x04, 91 CD_Q_CHANGER = 0x08, 92 CD_Q_10_BYTE_ONLY = 0x10 93 } cd_quirks; 94 95 typedef 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; 109 110 typedef 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; 118 119 typedef 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 128 129 struct cd_tocdata { 130 struct ioc_toc_header header; 131 struct cd_toc_entry entries[100]; 132 }; 133 134 struct cd_toc_single { 135 struct ioc_toc_header header; 136 struct cd_toc_entry entry; 137 }; 138 139 typedef enum { 140 CD_STATE_PROBE, 141 CD_STATE_NORMAL 142 } cd_state; 143 144 struct 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 }; 168 169 struct cd_page_sizes { 170 int page; 171 int page_size; 172 }; 173 174 static struct cd_page_sizes cd_page_size_table[] = 175 { 176 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 177 }; 178 179 struct 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 */ 202 static 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 }; 221 222 static disk_open_t cdopen; 223 static disk_close_t cdclose; 224 static disk_ioctl_t cdioctl; 225 static disk_strategy_t cdstrategy; 226 227 static periph_init_t cdinit; 228 static periph_ctor_t cdregister; 229 static periph_dtor_t cdcleanup; 230 static periph_start_t cdstart; 231 static periph_oninv_t cdoninvalidate; 232 static void cdasync(void *callback_arg, u_int32_t code, 233 struct cam_path *path, void *arg); 234 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 235 static void cdshorttimeout(void *arg); 236 static void cdschedule(struct cam_periph *periph, int priority); 237 static void cdrunchangerqueue(void *arg); 238 static void cdchangerschedule(struct cd_softc *softc); 239 static 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); 244 static union ccb *cdgetccb(struct cam_periph *periph, 245 u_int32_t priority); 246 static void cddone(struct cam_periph *periph, 247 union ccb *start_ccb); 248 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 249 static int cdgetpagesize(int page_num); 250 static void cdprevent(struct cam_periph *periph, int action); 251 static int cdcheckmedia(struct cam_periph *periph); 252 static int cdsize(struct cam_periph *periph, u_int32_t *size); 253 static int cd6byteworkaround(union ccb *ccb); 254 static int cderror(union ccb *ccb, u_int32_t cam_flags, 255 u_int32_t sense_flags); 256 static 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); 259 static int cdgetmode(struct cam_periph *periph, 260 struct cd_mode_params *data, u_int32_t page); 261 static int cdsetmode(struct cam_periph *periph, 262 struct cd_mode_params *data); 263 static int cdplay(struct cam_periph *periph, u_int32_t blk, 264 u_int32_t len); 265 static 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); 270 static 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); 274 static int cdplaytracks(struct cam_periph *periph, 275 u_int32_t strack, u_int32_t sindex, 276 u_int32_t etrack, u_int32_t eindex); 277 static int cdpause(struct cam_periph *periph, u_int32_t go); 278 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 279 static int cdstartunit(struct cam_periph *periph, int load); 280 static int cdsetspeed(struct cam_periph *periph, 281 u_int32_t rdspeed, u_int32_t wrspeed); 282 static int cdreportkey(struct cam_periph *periph, 283 struct dvd_authinfo *authinfo); 284 static int cdsendkey(struct cam_periph *periph, 285 struct dvd_authinfo *authinfo); 286 static int cdreaddvdstructure(struct cam_periph *periph, 287 struct dvd_struct *dvdstruct); 288 static timeout_t cdmediapoll; 289 290 static struct periph_driver cddriver = 291 { 292 cdinit, "cd", 293 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 294 }; 295 296 PERIPHDRIVER_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 313 314 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD; 315 static int cd_retry_count = CD_DEFAULT_RETRY; 316 static int cd_timeout = CD_DEFAULT_TIMEOUT; 317 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 318 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 319 320 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 321 static SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, 322 "CD Changer"); 323 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RW, 324 &cd_poll_period, 0, "Media polling period in seconds"); 325 TUNABLE_INT("kern.cam.cd.poll_period", &cd_poll_period); 326 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, 327 &cd_retry_count, 0, "Normal I/O retry count"); 328 TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); 329 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RW, 330 &cd_timeout, 0, "Timeout, in us, for read operations"); 331 TUNABLE_INT("kern.cam.cd.timeout", &cd_timeout); 332 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 333 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 334 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 335 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 336 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 337 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 338 339 struct 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 }; 352 353 static struct mtx changerq_mtx; 354 static STAILQ_HEAD(changerlist, cdchanger) changerq; 355 static int num_changers; 356 357 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 358 359 static void 360 cdinit(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 */ 383 static void 384 cddiskgonecb(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 } 392 393 static void 394 cdoninvalidate(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 } 426 427 static void 428 cdcleanup(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 } 514 515 static void 516 cdasync(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_NORMAL); 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 } 608 609 static void 610 cdsysctlinit(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 */ 652 static int 653 cdcmdsizesysctl(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 } 684 685 static cam_status 686 cdregister(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 1058 cdregisterexit: 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 1068 static int 1069 cdopen(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 1116 static int 1117 cdclose(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 1159 static void 1160 cdshorttimeout(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 */ 1183 static void 1184 cdschedule(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 1227 static void 1228 cdrunchangerqueue(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 1329 static void 1330 cdchangerschedule(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 1404 static int 1405 cdrunccb(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 1426 static union ccb * 1427 cdgetccb(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 */ 1469 static void 1470 cdstrategy(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 1529 static void 1530 cdstart(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 periph->immediate_priority != CAM_PRIORITY_NONE) { 1617 /* Have more work to do, so ensure we stay scheduled */ 1618 xpt_schedule(periph, min(CAM_PRIORITY_NORMAL, 1619 periph->immediate_priority)); 1620 } 1621 break; 1622 } 1623 case CD_STATE_PROBE: 1624 { 1625 1626 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1627 M_SCSICD, M_NOWAIT | M_ZERO); 1628 if (rcap == NULL) { 1629 xpt_print(periph->path, 1630 "cdstart: Couldn't malloc read_capacity data\n"); 1631 /* cd_free_periph??? */ 1632 break; 1633 } 1634 csio = &start_ccb->csio; 1635 scsi_read_capacity(csio, 1636 /*retries*/ cd_retry_count, 1637 cddone, 1638 MSG_SIMPLE_Q_TAG, 1639 rcap, 1640 SSD_FULL_SIZE, 1641 /*timeout*/20000); 1642 start_ccb->ccb_h.ccb_bp = NULL; 1643 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1644 xpt_action(start_ccb); 1645 break; 1646 } 1647 } 1648 } 1649 1650 static void 1651 cddone(struct cam_periph *periph, union ccb *done_ccb) 1652 { 1653 struct cd_softc *softc; 1654 struct ccb_scsiio *csio; 1655 1656 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1657 1658 softc = (struct cd_softc *)periph->softc; 1659 csio = &done_ccb->csio; 1660 1661 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1662 case CD_CCB_BUFFER_IO: 1663 { 1664 struct bio *bp; 1665 int error; 1666 1667 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1668 error = 0; 1669 1670 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1671 int sf; 1672 1673 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1674 sf = SF_RETRY_UA; 1675 else 1676 sf = 0; 1677 1678 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1679 if (error == ERESTART) { 1680 /* 1681 * A retry was scheuled, so 1682 * just return. 1683 */ 1684 return; 1685 } 1686 } 1687 1688 if (error != 0) { 1689 xpt_print(periph->path, 1690 "cddone: got error %#x back\n", error); 1691 bioq_flush(&softc->bio_queue, NULL, EIO); 1692 bp->bio_resid = bp->bio_bcount; 1693 bp->bio_error = error; 1694 bp->bio_flags |= BIO_ERROR; 1695 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1696 cam_release_devq(done_ccb->ccb_h.path, 1697 /*relsim_flags*/0, 1698 /*reduction*/0, 1699 /*timeout*/0, 1700 /*getcount_only*/0); 1701 1702 } else { 1703 bp->bio_resid = csio->resid; 1704 bp->bio_error = 0; 1705 if (bp->bio_resid != 0) { 1706 /* 1707 * Short transfer ??? 1708 * XXX: not sure this is correct for partial 1709 * transfers at EOM 1710 */ 1711 bp->bio_flags |= BIO_ERROR; 1712 } 1713 } 1714 1715 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1716 softc->outstanding_cmds--; 1717 1718 if (softc->flags & CD_FLAG_CHANGER) 1719 cdchangerschedule(softc); 1720 1721 biofinish(bp, NULL, 0); 1722 break; 1723 } 1724 case CD_CCB_PROBE: 1725 { 1726 struct scsi_read_capacity_data *rdcap; 1727 char announce_buf[120]; /* 1728 * Currently (9/30/97) the 1729 * longest possible announce 1730 * buffer is 108 bytes, for the 1731 * first error case below. 1732 * That is 39 bytes for the 1733 * basic string, 16 bytes for the 1734 * biggest sense key (hardware 1735 * error), 52 bytes for the 1736 * text of the largest sense 1737 * qualifier valid for a CDROM, 1738 * (0x72, 0x03 or 0x04, 1739 * 0x03), and one byte for the 1740 * null terminating character. 1741 * To allow for longer strings, 1742 * the announce buffer is 120 1743 * bytes. 1744 */ 1745 struct cd_params *cdp; 1746 int error; 1747 1748 cdp = &softc->params; 1749 1750 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1751 1752 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1753 cdp->blksize = scsi_4btoul (rdcap->length); 1754 1755 /* 1756 * Retry any UNIT ATTENTION type errors. They 1757 * are expected at boot. 1758 */ 1759 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1760 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1761 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1762 1763 snprintf(announce_buf, sizeof(announce_buf), 1764 "cd present [%lu x %lu byte records]", 1765 cdp->disksize, (u_long)cdp->blksize); 1766 1767 } else { 1768 if (error == ERESTART) { 1769 /* 1770 * A retry was scheuled, so 1771 * just return. 1772 */ 1773 return; 1774 } else { 1775 int asc, ascq; 1776 int sense_key, error_code; 1777 int have_sense; 1778 cam_status status; 1779 struct ccb_getdev cgd; 1780 1781 /* Don't wedge this device's queue */ 1782 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1783 cam_release_devq(done_ccb->ccb_h.path, 1784 /*relsim_flags*/0, 1785 /*reduction*/0, 1786 /*timeout*/0, 1787 /*getcount_only*/0); 1788 1789 status = done_ccb->ccb_h.status; 1790 1791 xpt_setup_ccb(&cgd.ccb_h, 1792 done_ccb->ccb_h.path, 1793 CAM_PRIORITY_NORMAL); 1794 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1795 xpt_action((union ccb *)&cgd); 1796 1797 if (scsi_extract_sense_ccb(done_ccb, 1798 &error_code, &sense_key, &asc, &ascq)) 1799 have_sense = TRUE; 1800 else 1801 have_sense = FALSE; 1802 1803 /* 1804 * Attach to anything that claims to be a 1805 * CDROM or WORM device, as long as it 1806 * doesn't return a "Logical unit not 1807 * supported" (0x25) error. 1808 */ 1809 if ((have_sense) && (asc != 0x25) 1810 && (error_code == SSD_CURRENT_ERROR)) { 1811 const char *sense_key_desc; 1812 const char *asc_desc; 1813 1814 scsi_sense_desc(sense_key, asc, ascq, 1815 &cgd.inq_data, 1816 &sense_key_desc, 1817 &asc_desc); 1818 snprintf(announce_buf, 1819 sizeof(announce_buf), 1820 "Attempt to query device " 1821 "size failed: %s, %s", 1822 sense_key_desc, 1823 asc_desc); 1824 } else if ((have_sense == 0) 1825 && ((status & CAM_STATUS_MASK) == 1826 CAM_SCSI_STATUS_ERROR) 1827 && (csio->scsi_status == 1828 SCSI_STATUS_BUSY)) { 1829 snprintf(announce_buf, 1830 sizeof(announce_buf), 1831 "Attempt to query device " 1832 "size failed: SCSI Status: %s", 1833 scsi_status_string(csio)); 1834 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1835 /* 1836 * We only print out an error for 1837 * CDROM type devices. For WORM 1838 * devices, we don't print out an 1839 * error since a few WORM devices 1840 * don't support CDROM commands. 1841 * If we have sense information, go 1842 * ahead and print it out. 1843 * Otherwise, just say that we 1844 * couldn't attach. 1845 */ 1846 1847 /* 1848 * Just print out the error, not 1849 * the full probe message, when we 1850 * don't attach. 1851 */ 1852 if (have_sense) 1853 scsi_sense_print( 1854 &done_ccb->csio); 1855 else { 1856 xpt_print(periph->path, 1857 "got CAM status %#x\n", 1858 done_ccb->ccb_h.status); 1859 } 1860 xpt_print(periph->path, "fatal error, " 1861 "failed to attach to device\n"); 1862 /* 1863 * Invalidate this peripheral. 1864 */ 1865 cam_periph_invalidate(periph); 1866 1867 announce_buf[0] = '\0'; 1868 } else { 1869 1870 /* 1871 * Invalidate this peripheral. 1872 */ 1873 cam_periph_invalidate(periph); 1874 announce_buf[0] = '\0'; 1875 } 1876 } 1877 } 1878 free(rdcap, M_SCSICD); 1879 if (announce_buf[0] != '\0') { 1880 xpt_announce_periph(periph, announce_buf); 1881 if (softc->flags & CD_FLAG_CHANGER) 1882 cdchangerschedule(softc); 1883 /* 1884 * Create our sysctl variables, now that we know 1885 * we have successfully attached. 1886 */ 1887 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1888 } 1889 softc->state = CD_STATE_NORMAL; 1890 /* 1891 * Since our peripheral may be invalidated by an error 1892 * above or an external event, we must release our CCB 1893 * before releasing the probe lock on the peripheral. 1894 * The peripheral will only go away once the last lock 1895 * is removed, and we need it around for the CCB release 1896 * operation. 1897 */ 1898 xpt_release_ccb(done_ccb); 1899 cam_periph_unhold(periph); 1900 return; 1901 } 1902 case CD_CCB_WAITING: 1903 { 1904 /* Caller will release the CCB */ 1905 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1906 ("trying to wakeup ccbwait\n")); 1907 1908 wakeup(&done_ccb->ccb_h.cbfcnp); 1909 return; 1910 } 1911 case CD_CCB_TUR: 1912 { 1913 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1914 1915 if (cderror(done_ccb, CAM_RETRY_SELTO, 1916 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1917 ERESTART) 1918 return; 1919 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1920 cam_release_devq(done_ccb->ccb_h.path, 1921 /*relsim_flags*/0, 1922 /*reduction*/0, 1923 /*timeout*/0, 1924 /*getcount_only*/0); 1925 } 1926 xpt_release_ccb(done_ccb); 1927 cam_periph_release_locked(periph); 1928 return; 1929 } 1930 default: 1931 break; 1932 } 1933 xpt_release_ccb(done_ccb); 1934 } 1935 1936 static union cd_pages * 1937 cdgetpage(struct cd_mode_params *mode_params) 1938 { 1939 union cd_pages *page; 1940 1941 if (mode_params->cdb_size == 10) 1942 page = (union cd_pages *)find_mode_page_10( 1943 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1944 else 1945 page = (union cd_pages *)find_mode_page_6( 1946 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1947 1948 return (page); 1949 } 1950 1951 static int 1952 cdgetpagesize(int page_num) 1953 { 1954 int i; 1955 1956 for (i = 0; i < (sizeof(cd_page_size_table)/ 1957 sizeof(cd_page_size_table[0])); i++) { 1958 if (cd_page_size_table[i].page == page_num) 1959 return (cd_page_size_table[i].page_size); 1960 } 1961 1962 return (-1); 1963 } 1964 1965 static int 1966 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1967 { 1968 1969 struct cam_periph *periph; 1970 struct cd_softc *softc; 1971 int nocopyout, error = 0; 1972 1973 periph = (struct cam_periph *)dp->d_drv1; 1974 if (periph == NULL) 1975 return(ENXIO); 1976 1977 cam_periph_lock(periph); 1978 1979 softc = (struct cd_softc *)periph->softc; 1980 1981 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1982 ("cdioctl(%#lx)\n", cmd)); 1983 1984 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1985 cam_periph_unlock(periph); 1986 cam_periph_release(periph); 1987 return (error); 1988 } 1989 1990 /* 1991 * If we don't have media loaded, check for it. If still don't 1992 * have media loaded, we can only do a load or eject. 1993 * 1994 * We only care whether media is loaded if this is a cd-specific ioctl 1995 * (thus the IOCGROUP check below). Note that this will break if 1996 * anyone adds any ioctls into the switch statement below that don't 1997 * have their ioctl group set to 'c'. 1998 */ 1999 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 2000 && ((cmd != CDIOCCLOSE) 2001 && (cmd != CDIOCEJECT)) 2002 && (IOCGROUP(cmd) == 'c')) { 2003 error = cdcheckmedia(periph); 2004 if (error != 0) { 2005 cam_periph_unhold(periph); 2006 cam_periph_unlock(periph); 2007 return (error); 2008 } 2009 } 2010 /* 2011 * Drop the lock here so later mallocs can use WAITOK. The periph 2012 * is essentially locked still with the cam_periph_hold call above. 2013 */ 2014 cam_periph_unlock(periph); 2015 2016 nocopyout = 0; 2017 switch (cmd) { 2018 2019 case CDIOCPLAYTRACKS: 2020 { 2021 struct ioc_play_track *args 2022 = (struct ioc_play_track *) addr; 2023 struct cd_mode_params params; 2024 union cd_pages *page; 2025 2026 params.alloc_len = sizeof(union cd_mode_data_6_10); 2027 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2028 M_WAITOK | M_ZERO); 2029 2030 cam_periph_lock(periph); 2031 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2032 ("trying to do CDIOCPLAYTRACKS\n")); 2033 2034 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2035 if (error) { 2036 free(params.mode_buf, M_SCSICD); 2037 cam_periph_unlock(periph); 2038 break; 2039 } 2040 page = cdgetpage(¶ms); 2041 2042 page->audio.flags &= ~CD_PA_SOTC; 2043 page->audio.flags |= CD_PA_IMMED; 2044 error = cdsetmode(periph, ¶ms); 2045 free(params.mode_buf, M_SCSICD); 2046 if (error) { 2047 cam_periph_unlock(periph); 2048 break; 2049 } 2050 2051 /* 2052 * This was originally implemented with the PLAY 2053 * AUDIO TRACK INDEX command, but that command was 2054 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2055 * drives support it but ATAPI and ATAPI-derivative 2056 * drives don't seem to support it. So we keep a 2057 * cache of the table of contents and translate 2058 * track numbers to MSF format. 2059 */ 2060 if (softc->flags & CD_FLAG_VALID_TOC) { 2061 union msf_lba *sentry, *eentry; 2062 int st, et; 2063 2064 if (args->end_track < 2065 softc->toc.header.ending_track + 1) 2066 args->end_track++; 2067 if (args->end_track > 2068 softc->toc.header.ending_track + 1) 2069 args->end_track = 2070 softc->toc.header.ending_track + 1; 2071 st = args->start_track - 2072 softc->toc.header.starting_track; 2073 et = args->end_track - 2074 softc->toc.header.starting_track; 2075 if ((st < 0) 2076 || (et < 0) 2077 || (st > (softc->toc.header.ending_track - 2078 softc->toc.header.starting_track))) { 2079 error = EINVAL; 2080 cam_periph_unlock(periph); 2081 break; 2082 } 2083 sentry = &softc->toc.entries[st].addr; 2084 eentry = &softc->toc.entries[et].addr; 2085 error = cdplaymsf(periph, 2086 sentry->msf.minute, 2087 sentry->msf.second, 2088 sentry->msf.frame, 2089 eentry->msf.minute, 2090 eentry->msf.second, 2091 eentry->msf.frame); 2092 } else { 2093 /* 2094 * If we don't have a valid TOC, try the 2095 * play track index command. It is part of 2096 * the SCSI-2 spec, but was removed in the 2097 * MMC specs. ATAPI and ATAPI-derived 2098 * drives don't support it. 2099 */ 2100 if (softc->quirks & CD_Q_BCD_TRACKS) { 2101 args->start_track = 2102 bin2bcd(args->start_track); 2103 args->end_track = 2104 bin2bcd(args->end_track); 2105 } 2106 error = cdplaytracks(periph, 2107 args->start_track, 2108 args->start_index, 2109 args->end_track, 2110 args->end_index); 2111 } 2112 cam_periph_unlock(periph); 2113 } 2114 break; 2115 case CDIOCPLAYMSF: 2116 { 2117 struct ioc_play_msf *args 2118 = (struct ioc_play_msf *) addr; 2119 struct cd_mode_params params; 2120 union cd_pages *page; 2121 2122 params.alloc_len = sizeof(union cd_mode_data_6_10); 2123 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2124 M_WAITOK | M_ZERO); 2125 2126 cam_periph_lock(periph); 2127 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2128 ("trying to do CDIOCPLAYMSF\n")); 2129 2130 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2131 if (error) { 2132 free(params.mode_buf, M_SCSICD); 2133 cam_periph_unlock(periph); 2134 break; 2135 } 2136 page = cdgetpage(¶ms); 2137 2138 page->audio.flags &= ~CD_PA_SOTC; 2139 page->audio.flags |= CD_PA_IMMED; 2140 error = cdsetmode(periph, ¶ms); 2141 free(params.mode_buf, M_SCSICD); 2142 if (error) { 2143 cam_periph_unlock(periph); 2144 break; 2145 } 2146 error = cdplaymsf(periph, 2147 args->start_m, 2148 args->start_s, 2149 args->start_f, 2150 args->end_m, 2151 args->end_s, 2152 args->end_f); 2153 cam_periph_unlock(periph); 2154 } 2155 break; 2156 case CDIOCPLAYBLOCKS: 2157 { 2158 struct ioc_play_blocks *args 2159 = (struct ioc_play_blocks *) addr; 2160 struct cd_mode_params params; 2161 union cd_pages *page; 2162 2163 params.alloc_len = sizeof(union cd_mode_data_6_10); 2164 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2165 M_WAITOK | M_ZERO); 2166 2167 cam_periph_lock(periph); 2168 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2169 ("trying to do CDIOCPLAYBLOCKS\n")); 2170 2171 2172 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2173 if (error) { 2174 free(params.mode_buf, M_SCSICD); 2175 cam_periph_unlock(periph); 2176 break; 2177 } 2178 page = cdgetpage(¶ms); 2179 2180 page->audio.flags &= ~CD_PA_SOTC; 2181 page->audio.flags |= CD_PA_IMMED; 2182 error = cdsetmode(periph, ¶ms); 2183 free(params.mode_buf, M_SCSICD); 2184 if (error) { 2185 cam_periph_unlock(periph); 2186 break; 2187 } 2188 error = cdplay(periph, args->blk, args->len); 2189 cam_periph_unlock(periph); 2190 } 2191 break; 2192 case CDIOCREADSUBCHANNEL_SYSSPACE: 2193 nocopyout = 1; 2194 /* Fallthrough */ 2195 case CDIOCREADSUBCHANNEL: 2196 { 2197 struct ioc_read_subchannel *args 2198 = (struct ioc_read_subchannel *) addr; 2199 struct cd_sub_channel_info *data; 2200 u_int32_t len = args->data_len; 2201 2202 data = malloc(sizeof(struct cd_sub_channel_info), 2203 M_SCSICD, M_WAITOK | M_ZERO); 2204 2205 cam_periph_lock(periph); 2206 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2207 ("trying to do CDIOCREADSUBCHANNEL\n")); 2208 2209 if ((len > sizeof(struct cd_sub_channel_info)) || 2210 (len < sizeof(struct cd_sub_channel_header))) { 2211 printf( 2212 "scsi_cd: cdioctl: " 2213 "cdioreadsubchannel: error, len=%d\n", 2214 len); 2215 error = EINVAL; 2216 free(data, M_SCSICD); 2217 cam_periph_unlock(periph); 2218 break; 2219 } 2220 2221 if (softc->quirks & CD_Q_BCD_TRACKS) 2222 args->track = bin2bcd(args->track); 2223 2224 error = cdreadsubchannel(periph, args->address_format, 2225 args->data_format, args->track, data, len); 2226 2227 if (error) { 2228 free(data, M_SCSICD); 2229 cam_periph_unlock(periph); 2230 break; 2231 } 2232 if (softc->quirks & CD_Q_BCD_TRACKS) 2233 data->what.track_info.track_number = 2234 bcd2bin(data->what.track_info.track_number); 2235 len = min(len, ((data->header.data_len[0] << 8) + 2236 data->header.data_len[1] + 2237 sizeof(struct cd_sub_channel_header))); 2238 cam_periph_unlock(periph); 2239 if (nocopyout == 0) { 2240 if (copyout(data, args->data, len) != 0) { 2241 error = EFAULT; 2242 } 2243 } else { 2244 bcopy(data, args->data, len); 2245 } 2246 free(data, M_SCSICD); 2247 } 2248 break; 2249 2250 case CDIOREADTOCHEADER: 2251 { 2252 struct ioc_toc_header *th; 2253 2254 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2255 M_WAITOK | M_ZERO); 2256 2257 cam_periph_lock(periph); 2258 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2259 ("trying to do CDIOREADTOCHEADER\n")); 2260 2261 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2262 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2263 if (error) { 2264 free(th, M_SCSICD); 2265 cam_periph_unlock(periph); 2266 break; 2267 } 2268 if (softc->quirks & CD_Q_BCD_TRACKS) { 2269 /* we are going to have to convert the BCD 2270 * encoding on the cd to what is expected 2271 */ 2272 th->starting_track = 2273 bcd2bin(th->starting_track); 2274 th->ending_track = bcd2bin(th->ending_track); 2275 } 2276 th->len = ntohs(th->len); 2277 bcopy(th, addr, sizeof(*th)); 2278 free(th, M_SCSICD); 2279 cam_periph_unlock(periph); 2280 } 2281 break; 2282 case CDIOREADTOCENTRYS: 2283 { 2284 struct cd_tocdata *data; 2285 struct cd_toc_single *lead; 2286 struct ioc_read_toc_entry *te = 2287 (struct ioc_read_toc_entry *) addr; 2288 struct ioc_toc_header *th; 2289 u_int32_t len, readlen, idx, num; 2290 u_int32_t starting_track = te->starting_track; 2291 2292 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2293 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2294 2295 cam_periph_lock(periph); 2296 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2297 ("trying to do CDIOREADTOCENTRYS\n")); 2298 2299 if (te->data_len < sizeof(struct cd_toc_entry) 2300 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2301 || (te->address_format != CD_MSF_FORMAT 2302 && te->address_format != CD_LBA_FORMAT)) { 2303 error = EINVAL; 2304 printf("scsi_cd: error in readtocentries, " 2305 "returning EINVAL\n"); 2306 free(data, M_SCSICD); 2307 free(lead, M_SCSICD); 2308 cam_periph_unlock(periph); 2309 break; 2310 } 2311 2312 th = &data->header; 2313 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2314 sizeof (*th), /*sense_flags*/0); 2315 if (error) { 2316 free(data, M_SCSICD); 2317 free(lead, M_SCSICD); 2318 cam_periph_unlock(periph); 2319 break; 2320 } 2321 2322 if (softc->quirks & CD_Q_BCD_TRACKS) { 2323 /* we are going to have to convert the BCD 2324 * encoding on the cd to what is expected 2325 */ 2326 th->starting_track = 2327 bcd2bin(th->starting_track); 2328 th->ending_track = bcd2bin(th->ending_track); 2329 } 2330 2331 if (starting_track == 0) 2332 starting_track = th->starting_track; 2333 else if (starting_track == LEADOUT) 2334 starting_track = th->ending_track + 1; 2335 else if (starting_track < th->starting_track || 2336 starting_track > th->ending_track + 1) { 2337 printf("scsi_cd: error in readtocentries, " 2338 "returning EINVAL\n"); 2339 free(data, M_SCSICD); 2340 free(lead, M_SCSICD); 2341 cam_periph_unlock(periph); 2342 error = EINVAL; 2343 break; 2344 } 2345 2346 /* calculate reading length without leadout entry */ 2347 readlen = (th->ending_track - starting_track + 1) * 2348 sizeof(struct cd_toc_entry); 2349 2350 /* and with leadout entry */ 2351 len = readlen + sizeof(struct cd_toc_entry); 2352 if (te->data_len < len) { 2353 len = te->data_len; 2354 if (readlen > len) 2355 readlen = len; 2356 } 2357 if (len > sizeof(data->entries)) { 2358 printf("scsi_cd: error in readtocentries, " 2359 "returning EINVAL\n"); 2360 error = EINVAL; 2361 free(data, M_SCSICD); 2362 free(lead, M_SCSICD); 2363 cam_periph_unlock(periph); 2364 break; 2365 } 2366 num = len / sizeof(struct cd_toc_entry); 2367 2368 if (readlen > 0) { 2369 error = cdreadtoc(periph, te->address_format, 2370 starting_track, 2371 (u_int8_t *)data, 2372 readlen + sizeof (*th), 2373 /*sense_flags*/0); 2374 if (error) { 2375 free(data, M_SCSICD); 2376 free(lead, M_SCSICD); 2377 cam_periph_unlock(periph); 2378 break; 2379 } 2380 } 2381 2382 /* make leadout entry if needed */ 2383 idx = starting_track + num - 1; 2384 if (softc->quirks & CD_Q_BCD_TRACKS) 2385 th->ending_track = bcd2bin(th->ending_track); 2386 if (idx == th->ending_track + 1) { 2387 error = cdreadtoc(periph, te->address_format, 2388 LEADOUT, (u_int8_t *)lead, 2389 sizeof(*lead), 2390 /*sense_flags*/0); 2391 if (error) { 2392 free(data, M_SCSICD); 2393 free(lead, M_SCSICD); 2394 cam_periph_unlock(periph); 2395 break; 2396 } 2397 data->entries[idx - starting_track] = 2398 lead->entry; 2399 } 2400 if (softc->quirks & CD_Q_BCD_TRACKS) { 2401 for (idx = 0; idx < num - 1; idx++) { 2402 data->entries[idx].track = 2403 bcd2bin(data->entries[idx].track); 2404 } 2405 } 2406 2407 cam_periph_unlock(periph); 2408 error = copyout(data->entries, te->data, len); 2409 free(data, M_SCSICD); 2410 free(lead, M_SCSICD); 2411 } 2412 break; 2413 case CDIOREADTOCENTRY: 2414 { 2415 struct cd_toc_single *data; 2416 struct ioc_read_toc_single_entry *te = 2417 (struct ioc_read_toc_single_entry *) addr; 2418 struct ioc_toc_header *th; 2419 u_int32_t track; 2420 2421 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2422 2423 cam_periph_lock(periph); 2424 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2425 ("trying to do CDIOREADTOCENTRY\n")); 2426 2427 if (te->address_format != CD_MSF_FORMAT 2428 && te->address_format != CD_LBA_FORMAT) { 2429 printf("error in readtocentry, " 2430 " returning EINVAL\n"); 2431 free(data, M_SCSICD); 2432 error = EINVAL; 2433 cam_periph_unlock(periph); 2434 break; 2435 } 2436 2437 th = &data->header; 2438 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2439 sizeof (*th), /*sense_flags*/0); 2440 if (error) { 2441 free(data, M_SCSICD); 2442 cam_periph_unlock(periph); 2443 break; 2444 } 2445 2446 if (softc->quirks & CD_Q_BCD_TRACKS) { 2447 /* we are going to have to convert the BCD 2448 * encoding on the cd to what is expected 2449 */ 2450 th->starting_track = 2451 bcd2bin(th->starting_track); 2452 th->ending_track = bcd2bin(th->ending_track); 2453 } 2454 track = te->track; 2455 if (track == 0) 2456 track = th->starting_track; 2457 else if (track == LEADOUT) 2458 /* OK */; 2459 else if (track < th->starting_track || 2460 track > th->ending_track + 1) { 2461 printf("error in readtocentry, " 2462 " returning EINVAL\n"); 2463 free(data, M_SCSICD); 2464 error = EINVAL; 2465 cam_periph_unlock(periph); 2466 break; 2467 } 2468 2469 error = cdreadtoc(periph, te->address_format, track, 2470 (u_int8_t *)data, sizeof(*data), 2471 /*sense_flags*/0); 2472 if (error) { 2473 free(data, M_SCSICD); 2474 cam_periph_unlock(periph); 2475 break; 2476 } 2477 2478 if (softc->quirks & CD_Q_BCD_TRACKS) 2479 data->entry.track = bcd2bin(data->entry.track); 2480 bcopy(&data->entry, &te->entry, 2481 sizeof(struct cd_toc_entry)); 2482 free(data, M_SCSICD); 2483 cam_periph_unlock(periph); 2484 } 2485 break; 2486 case CDIOCSETPATCH: 2487 { 2488 struct ioc_patch *arg = (struct ioc_patch *)addr; 2489 struct cd_mode_params params; 2490 union cd_pages *page; 2491 2492 params.alloc_len = sizeof(union cd_mode_data_6_10); 2493 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2494 M_WAITOK | M_ZERO); 2495 2496 cam_periph_lock(periph); 2497 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2498 ("trying to do CDIOCSETPATCH\n")); 2499 2500 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2501 if (error) { 2502 free(params.mode_buf, M_SCSICD); 2503 cam_periph_unlock(periph); 2504 break; 2505 } 2506 page = cdgetpage(¶ms); 2507 2508 page->audio.port[LEFT_PORT].channels = 2509 arg->patch[0]; 2510 page->audio.port[RIGHT_PORT].channels = 2511 arg->patch[1]; 2512 page->audio.port[2].channels = arg->patch[2]; 2513 page->audio.port[3].channels = arg->patch[3]; 2514 error = cdsetmode(periph, ¶ms); 2515 free(params.mode_buf, M_SCSICD); 2516 cam_periph_unlock(periph); 2517 } 2518 break; 2519 case CDIOCGETVOL: 2520 { 2521 struct ioc_vol *arg = (struct ioc_vol *) addr; 2522 struct cd_mode_params params; 2523 union cd_pages *page; 2524 2525 params.alloc_len = sizeof(union cd_mode_data_6_10); 2526 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2527 M_WAITOK | M_ZERO); 2528 2529 cam_periph_lock(periph); 2530 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2531 ("trying to do CDIOCGETVOL\n")); 2532 2533 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2534 if (error) { 2535 free(params.mode_buf, M_SCSICD); 2536 cam_periph_unlock(periph); 2537 break; 2538 } 2539 page = cdgetpage(¶ms); 2540 2541 arg->vol[LEFT_PORT] = 2542 page->audio.port[LEFT_PORT].volume; 2543 arg->vol[RIGHT_PORT] = 2544 page->audio.port[RIGHT_PORT].volume; 2545 arg->vol[2] = page->audio.port[2].volume; 2546 arg->vol[3] = page->audio.port[3].volume; 2547 free(params.mode_buf, M_SCSICD); 2548 cam_periph_unlock(periph); 2549 } 2550 break; 2551 case CDIOCSETVOL: 2552 { 2553 struct ioc_vol *arg = (struct ioc_vol *) addr; 2554 struct cd_mode_params params; 2555 union cd_pages *page; 2556 2557 params.alloc_len = sizeof(union cd_mode_data_6_10); 2558 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2559 M_WAITOK | M_ZERO); 2560 2561 cam_periph_lock(periph); 2562 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2563 ("trying to do CDIOCSETVOL\n")); 2564 2565 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2566 if (error) { 2567 free(params.mode_buf, M_SCSICD); 2568 cam_periph_unlock(periph); 2569 break; 2570 } 2571 page = cdgetpage(¶ms); 2572 2573 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2574 page->audio.port[LEFT_PORT].volume = 2575 arg->vol[LEFT_PORT]; 2576 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2577 page->audio.port[RIGHT_PORT].volume = 2578 arg->vol[RIGHT_PORT]; 2579 page->audio.port[2].volume = arg->vol[2]; 2580 page->audio.port[3].volume = arg->vol[3]; 2581 error = cdsetmode(periph, ¶ms); 2582 cam_periph_unlock(periph); 2583 free(params.mode_buf, M_SCSICD); 2584 } 2585 break; 2586 case CDIOCSETMONO: 2587 { 2588 struct cd_mode_params params; 2589 union cd_pages *page; 2590 2591 params.alloc_len = sizeof(union cd_mode_data_6_10); 2592 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2593 M_WAITOK | M_ZERO); 2594 2595 cam_periph_lock(periph); 2596 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2597 ("trying to do CDIOCSETMONO\n")); 2598 2599 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2600 if (error) { 2601 free(params.mode_buf, M_SCSICD); 2602 cam_periph_unlock(periph); 2603 break; 2604 } 2605 page = cdgetpage(¶ms); 2606 2607 page->audio.port[LEFT_PORT].channels = 2608 LEFT_CHANNEL | RIGHT_CHANNEL; 2609 page->audio.port[RIGHT_PORT].channels = 2610 LEFT_CHANNEL | RIGHT_CHANNEL; 2611 page->audio.port[2].channels = 0; 2612 page->audio.port[3].channels = 0; 2613 error = cdsetmode(periph, ¶ms); 2614 cam_periph_unlock(periph); 2615 free(params.mode_buf, M_SCSICD); 2616 } 2617 break; 2618 case CDIOCSETSTEREO: 2619 { 2620 struct cd_mode_params params; 2621 union cd_pages *page; 2622 2623 params.alloc_len = sizeof(union cd_mode_data_6_10); 2624 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2625 M_WAITOK | M_ZERO); 2626 2627 cam_periph_lock(periph); 2628 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2629 ("trying to do CDIOCSETSTEREO\n")); 2630 2631 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2632 if (error) { 2633 free(params.mode_buf, M_SCSICD); 2634 cam_periph_unlock(periph); 2635 break; 2636 } 2637 page = cdgetpage(¶ms); 2638 2639 page->audio.port[LEFT_PORT].channels = 2640 LEFT_CHANNEL; 2641 page->audio.port[RIGHT_PORT].channels = 2642 RIGHT_CHANNEL; 2643 page->audio.port[2].channels = 0; 2644 page->audio.port[3].channels = 0; 2645 error = cdsetmode(periph, ¶ms); 2646 free(params.mode_buf, M_SCSICD); 2647 cam_periph_unlock(periph); 2648 } 2649 break; 2650 case CDIOCSETMUTE: 2651 { 2652 struct cd_mode_params params; 2653 union cd_pages *page; 2654 2655 params.alloc_len = sizeof(union cd_mode_data_6_10); 2656 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2657 M_WAITOK | M_ZERO); 2658 2659 cam_periph_lock(periph); 2660 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2661 ("trying to do CDIOCSETMUTE\n")); 2662 2663 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2664 if (error) { 2665 free(params.mode_buf, M_SCSICD); 2666 cam_periph_unlock(periph); 2667 break; 2668 } 2669 page = cdgetpage(¶ms); 2670 2671 page->audio.port[LEFT_PORT].channels = 0; 2672 page->audio.port[RIGHT_PORT].channels = 0; 2673 page->audio.port[2].channels = 0; 2674 page->audio.port[3].channels = 0; 2675 error = cdsetmode(periph, ¶ms); 2676 free(params.mode_buf, M_SCSICD); 2677 cam_periph_unlock(periph); 2678 } 2679 break; 2680 case CDIOCSETLEFT: 2681 { 2682 struct cd_mode_params params; 2683 union cd_pages *page; 2684 2685 params.alloc_len = sizeof(union cd_mode_data_6_10); 2686 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2687 M_WAITOK | M_ZERO); 2688 2689 cam_periph_lock(periph); 2690 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2691 ("trying to do CDIOCSETLEFT\n")); 2692 2693 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2694 if (error) { 2695 free(params.mode_buf, M_SCSICD); 2696 cam_periph_unlock(periph); 2697 break; 2698 } 2699 page = cdgetpage(¶ms); 2700 2701 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2702 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2703 page->audio.port[2].channels = 0; 2704 page->audio.port[3].channels = 0; 2705 error = cdsetmode(periph, ¶ms); 2706 free(params.mode_buf, M_SCSICD); 2707 cam_periph_unlock(periph); 2708 } 2709 break; 2710 case CDIOCSETRIGHT: 2711 { 2712 struct cd_mode_params params; 2713 union cd_pages *page; 2714 2715 params.alloc_len = sizeof(union cd_mode_data_6_10); 2716 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2717 M_WAITOK | M_ZERO); 2718 2719 cam_periph_lock(periph); 2720 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2721 ("trying to do CDIOCSETRIGHT\n")); 2722 2723 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2724 if (error) { 2725 free(params.mode_buf, M_SCSICD); 2726 cam_periph_unlock(periph); 2727 break; 2728 } 2729 page = cdgetpage(¶ms); 2730 2731 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2732 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2733 page->audio.port[2].channels = 0; 2734 page->audio.port[3].channels = 0; 2735 error = cdsetmode(periph, ¶ms); 2736 free(params.mode_buf, M_SCSICD); 2737 cam_periph_unlock(periph); 2738 } 2739 break; 2740 case CDIOCRESUME: 2741 cam_periph_lock(periph); 2742 error = cdpause(periph, 1); 2743 cam_periph_unlock(periph); 2744 break; 2745 case CDIOCPAUSE: 2746 cam_periph_lock(periph); 2747 error = cdpause(periph, 0); 2748 cam_periph_unlock(periph); 2749 break; 2750 case CDIOCSTART: 2751 cam_periph_lock(periph); 2752 error = cdstartunit(periph, 0); 2753 cam_periph_unlock(periph); 2754 break; 2755 case CDIOCCLOSE: 2756 cam_periph_lock(periph); 2757 error = cdstartunit(periph, 1); 2758 cam_periph_unlock(periph); 2759 break; 2760 case CDIOCSTOP: 2761 cam_periph_lock(periph); 2762 error = cdstopunit(periph, 0); 2763 cam_periph_unlock(periph); 2764 break; 2765 case CDIOCEJECT: 2766 cam_periph_lock(periph); 2767 error = cdstopunit(periph, 1); 2768 cam_periph_unlock(periph); 2769 break; 2770 case CDIOCALLOW: 2771 cam_periph_lock(periph); 2772 cdprevent(periph, PR_ALLOW); 2773 cam_periph_unlock(periph); 2774 break; 2775 case CDIOCPREVENT: 2776 cam_periph_lock(periph); 2777 cdprevent(periph, PR_PREVENT); 2778 cam_periph_unlock(periph); 2779 break; 2780 case CDIOCSETDEBUG: 2781 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2782 error = ENOTTY; 2783 break; 2784 case CDIOCCLRDEBUG: 2785 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2786 error = ENOTTY; 2787 break; 2788 case CDIOCRESET: 2789 /* return (cd_reset(periph)); */ 2790 error = ENOTTY; 2791 break; 2792 case CDRIOCREADSPEED: 2793 cam_periph_lock(periph); 2794 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2795 cam_periph_unlock(periph); 2796 break; 2797 case CDRIOCWRITESPEED: 2798 cam_periph_lock(periph); 2799 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2800 cam_periph_unlock(periph); 2801 break; 2802 case CDRIOCGETBLOCKSIZE: 2803 *(int *)addr = softc->params.blksize; 2804 break; 2805 case CDRIOCSETBLOCKSIZE: 2806 if (*(int *)addr <= 0) { 2807 error = EINVAL; 2808 break; 2809 } 2810 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2811 break; 2812 case DVDIOCSENDKEY: 2813 case DVDIOCREPORTKEY: { 2814 struct dvd_authinfo *authinfo; 2815 2816 authinfo = (struct dvd_authinfo *)addr; 2817 2818 if (cmd == DVDIOCREPORTKEY) 2819 error = cdreportkey(periph, authinfo); 2820 else 2821 error = cdsendkey(periph, authinfo); 2822 break; 2823 } 2824 case DVDIOCREADSTRUCTURE: { 2825 struct dvd_struct *dvdstruct; 2826 2827 dvdstruct = (struct dvd_struct *)addr; 2828 2829 error = cdreaddvdstructure(periph, dvdstruct); 2830 2831 break; 2832 } 2833 default: 2834 cam_periph_lock(periph); 2835 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2836 cam_periph_unlock(periph); 2837 break; 2838 } 2839 2840 cam_periph_lock(periph); 2841 cam_periph_unhold(periph); 2842 2843 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2844 if (error && bootverbose) { 2845 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2846 } 2847 cam_periph_unlock(periph); 2848 2849 return (error); 2850 } 2851 2852 static void 2853 cdprevent(struct cam_periph *periph, int action) 2854 { 2855 union ccb *ccb; 2856 struct cd_softc *softc; 2857 int error; 2858 2859 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2860 2861 softc = (struct cd_softc *)periph->softc; 2862 2863 if (((action == PR_ALLOW) 2864 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2865 || ((action == PR_PREVENT) 2866 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2867 return; 2868 } 2869 2870 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2871 2872 scsi_prevent(&ccb->csio, 2873 /*retries*/ cd_retry_count, 2874 cddone, 2875 MSG_SIMPLE_Q_TAG, 2876 action, 2877 SSD_FULL_SIZE, 2878 /* timeout */60000); 2879 2880 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2881 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2882 2883 xpt_release_ccb(ccb); 2884 2885 if (error == 0) { 2886 if (action == PR_ALLOW) 2887 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2888 else 2889 softc->flags |= CD_FLAG_DISC_LOCKED; 2890 } 2891 } 2892 2893 /* 2894 * XXX: the disk media and sector size is only really able to change 2895 * XXX: while the device is closed. 2896 */ 2897 static int 2898 cdcheckmedia(struct cam_periph *periph) 2899 { 2900 struct cd_softc *softc; 2901 struct ioc_toc_header *toch; 2902 struct cd_toc_single leadout; 2903 u_int32_t size, toclen; 2904 int error, num_entries, cdindex; 2905 2906 softc = (struct cd_softc *)periph->softc; 2907 2908 cdprevent(periph, PR_PREVENT); 2909 softc->disk->d_sectorsize = 2048; 2910 softc->disk->d_mediasize = 0; 2911 2912 /* 2913 * Get the disc size and block size. If we can't get it, we don't 2914 * have media, most likely. 2915 */ 2916 if ((error = cdsize(periph, &size)) != 0) { 2917 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2918 cdprevent(periph, PR_ALLOW); 2919 return (error); 2920 } else { 2921 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2922 softc->disk->d_sectorsize = softc->params.blksize; 2923 softc->disk->d_mediasize = 2924 (off_t)softc->params.blksize * softc->params.disksize; 2925 } 2926 2927 /* 2928 * Now we check the table of contents. This (currently) is only 2929 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2930 * things like present a separate entry in /dev for each track, 2931 * like that acd(4) driver does. 2932 */ 2933 bzero(&softc->toc, sizeof(softc->toc)); 2934 toch = &softc->toc.header; 2935 /* 2936 * We will get errors here for media that doesn't have a table of 2937 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2938 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2939 * has not been recorded (no complete session) and the Format codes 2940 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2941 * with an INVALID FIELD IN CDB. Devices that are not capable of 2942 * reading an incomplete session on DDC/CD-R/RW media shall report 2943 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2944 * 2945 * So this isn't fatal if we can't read the table of contents, it 2946 * just means that the user won't be able to issue the play tracks 2947 * ioctl, and likely lots of other stuff won't work either. They 2948 * need to burn the CD before we can do a whole lot with it. So 2949 * we don't print anything here if we get an error back. 2950 */ 2951 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2952 SF_NO_PRINT); 2953 /* 2954 * Errors in reading the table of contents aren't fatal, we just 2955 * won't have a valid table of contents cached. 2956 */ 2957 if (error != 0) { 2958 error = 0; 2959 bzero(&softc->toc, sizeof(softc->toc)); 2960 goto bailout; 2961 } 2962 2963 if (softc->quirks & CD_Q_BCD_TRACKS) { 2964 toch->starting_track = bcd2bin(toch->starting_track); 2965 toch->ending_track = bcd2bin(toch->ending_track); 2966 } 2967 2968 /* Number of TOC entries, plus leadout */ 2969 num_entries = (toch->ending_track - toch->starting_track) + 2; 2970 2971 if (num_entries <= 0) 2972 goto bailout; 2973 2974 toclen = num_entries * sizeof(struct cd_toc_entry); 2975 2976 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2977 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2978 SF_NO_PRINT); 2979 if (error != 0) { 2980 error = 0; 2981 bzero(&softc->toc, sizeof(softc->toc)); 2982 goto bailout; 2983 } 2984 2985 if (softc->quirks & CD_Q_BCD_TRACKS) { 2986 toch->starting_track = bcd2bin(toch->starting_track); 2987 toch->ending_track = bcd2bin(toch->ending_track); 2988 } 2989 /* 2990 * XXX KDM is this necessary? Probably only if the drive doesn't 2991 * return leadout information with the table of contents. 2992 */ 2993 cdindex = toch->starting_track + num_entries -1; 2994 if (cdindex == toch->ending_track + 1) { 2995 2996 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2997 (u_int8_t *)&leadout, sizeof(leadout), 2998 SF_NO_PRINT); 2999 if (error != 0) { 3000 error = 0; 3001 goto bailout; 3002 } 3003 softc->toc.entries[cdindex - toch->starting_track] = 3004 leadout.entry; 3005 } 3006 if (softc->quirks & CD_Q_BCD_TRACKS) { 3007 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3008 softc->toc.entries[cdindex].track = 3009 bcd2bin(softc->toc.entries[cdindex].track); 3010 } 3011 } 3012 3013 softc->flags |= CD_FLAG_VALID_TOC; 3014 3015 /* If the first track is audio, correct sector size. */ 3016 if ((softc->toc.entries[0].control & 4) == 0) { 3017 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3018 softc->disk->d_mediasize = 3019 (off_t)softc->params.blksize * softc->params.disksize; 3020 } 3021 3022 bailout: 3023 3024 /* 3025 * We unconditionally (re)set the blocksize each time the 3026 * CD device is opened. This is because the CD can change, 3027 * and therefore the blocksize might change. 3028 * XXX problems here if some slice or partition is still 3029 * open with the old size? 3030 */ 3031 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3032 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3033 softc->disk->d_devstat->block_size = softc->params.blksize; 3034 3035 return (error); 3036 } 3037 3038 static int 3039 cdsize(struct cam_periph *periph, u_int32_t *size) 3040 { 3041 struct cd_softc *softc; 3042 union ccb *ccb; 3043 struct scsi_read_capacity_data *rcap_buf; 3044 int error; 3045 3046 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3047 3048 softc = (struct cd_softc *)periph->softc; 3049 3050 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3051 3052 /* XXX Should be M_WAITOK */ 3053 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3054 M_SCSICD, M_NOWAIT | M_ZERO); 3055 if (rcap_buf == NULL) 3056 return (ENOMEM); 3057 3058 scsi_read_capacity(&ccb->csio, 3059 /*retries*/ cd_retry_count, 3060 cddone, 3061 MSG_SIMPLE_Q_TAG, 3062 rcap_buf, 3063 SSD_FULL_SIZE, 3064 /* timeout */20000); 3065 3066 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3067 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3068 3069 xpt_release_ccb(ccb); 3070 3071 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3072 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3073 /* Make sure we got at least some block size. */ 3074 if (error == 0 && softc->params.blksize == 0) 3075 error = EIO; 3076 /* 3077 * SCSI-3 mandates that the reported blocksize shall be 2048. 3078 * Older drives sometimes report funny values, trim it down to 3079 * 2048, or other parts of the kernel will get confused. 3080 * 3081 * XXX we leave drives alone that might report 512 bytes, as 3082 * well as drives reporting more weird sizes like perhaps 4K. 3083 */ 3084 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3085 softc->params.blksize = 2048; 3086 3087 free(rcap_buf, M_SCSICD); 3088 *size = softc->params.disksize; 3089 3090 return (error); 3091 3092 } 3093 3094 static int 3095 cd6byteworkaround(union ccb *ccb) 3096 { 3097 u_int8_t *cdb; 3098 struct cam_periph *periph; 3099 struct cd_softc *softc; 3100 struct cd_mode_params *params; 3101 int frozen, found; 3102 3103 periph = xpt_path_periph(ccb->ccb_h.path); 3104 softc = (struct cd_softc *)periph->softc; 3105 3106 cdb = ccb->csio.cdb_io.cdb_bytes; 3107 3108 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3109 || ((cdb[0] != MODE_SENSE_6) 3110 && (cdb[0] != MODE_SELECT_6))) 3111 return (0); 3112 3113 /* 3114 * Because there is no convenient place to stash the overall 3115 * cd_mode_params structure pointer, we have to grab it like this. 3116 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3117 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3118 * 3119 * XXX It would be nice if, at some point, we could increase the 3120 * number of available peripheral private pointers. Both pointers 3121 * are currently used in most every peripheral driver. 3122 */ 3123 found = 0; 3124 3125 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3126 if (params->mode_buf == ccb->csio.data_ptr) { 3127 found = 1; 3128 break; 3129 } 3130 } 3131 3132 /* 3133 * This shouldn't happen. All mode sense and mode select 3134 * operations in the cd(4) driver MUST go through cdgetmode() and 3135 * cdsetmode()! 3136 */ 3137 if (found == 0) { 3138 xpt_print(periph->path, 3139 "mode buffer not found in mode queue!\n"); 3140 return (0); 3141 } 3142 3143 params->cdb_size = 10; 3144 softc->minimum_command_size = 10; 3145 xpt_print(ccb->ccb_h.path, 3146 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3147 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3148 3149 if (cdb[0] == MODE_SENSE_6) { 3150 struct scsi_mode_sense_10 ms10; 3151 struct scsi_mode_sense_6 *ms6; 3152 int len; 3153 3154 ms6 = (struct scsi_mode_sense_6 *)cdb; 3155 3156 bzero(&ms10, sizeof(ms10)); 3157 ms10.opcode = MODE_SENSE_10; 3158 ms10.byte2 = ms6->byte2; 3159 ms10.page = ms6->page; 3160 3161 /* 3162 * 10 byte mode header, block descriptor, 3163 * sizeof(union cd_pages) 3164 */ 3165 len = sizeof(struct cd_mode_data_10); 3166 ccb->csio.dxfer_len = len; 3167 3168 scsi_ulto2b(len, ms10.length); 3169 ms10.control = ms6->control; 3170 bcopy(&ms10, cdb, 10); 3171 ccb->csio.cdb_len = 10; 3172 } else { 3173 struct scsi_mode_select_10 ms10; 3174 struct scsi_mode_select_6 *ms6; 3175 struct scsi_mode_header_6 *header6; 3176 struct scsi_mode_header_10 *header10; 3177 struct scsi_mode_page_header *page_header; 3178 int blk_desc_len, page_num, page_size, len; 3179 3180 ms6 = (struct scsi_mode_select_6 *)cdb; 3181 3182 bzero(&ms10, sizeof(ms10)); 3183 ms10.opcode = MODE_SELECT_10; 3184 ms10.byte2 = ms6->byte2; 3185 3186 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3187 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3188 3189 page_header = find_mode_page_6(header6); 3190 page_num = page_header->page_code; 3191 3192 blk_desc_len = header6->blk_desc_len; 3193 3194 page_size = cdgetpagesize(page_num); 3195 3196 if (page_size != (page_header->page_length + 3197 sizeof(*page_header))) 3198 page_size = page_header->page_length + 3199 sizeof(*page_header); 3200 3201 len = sizeof(*header10) + blk_desc_len + page_size; 3202 3203 len = min(params->alloc_len, len); 3204 3205 /* 3206 * Since the 6 byte parameter header is shorter than the 10 3207 * byte parameter header, we need to copy the actual mode 3208 * page data, and the block descriptor, if any, so things wind 3209 * up in the right place. The regions will overlap, but 3210 * bcopy() does the right thing. 3211 */ 3212 bcopy(params->mode_buf + sizeof(*header6), 3213 params->mode_buf + sizeof(*header10), 3214 len - sizeof(*header10)); 3215 3216 /* Make sure these fields are set correctly. */ 3217 scsi_ulto2b(0, header10->data_length); 3218 header10->medium_type = 0; 3219 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3220 3221 ccb->csio.dxfer_len = len; 3222 3223 scsi_ulto2b(len, ms10.length); 3224 ms10.control = ms6->control; 3225 bcopy(&ms10, cdb, 10); 3226 ccb->csio.cdb_len = 10; 3227 } 3228 3229 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3230 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3231 xpt_action(ccb); 3232 if (frozen) { 3233 cam_release_devq(ccb->ccb_h.path, 3234 /*relsim_flags*/0, 3235 /*openings*/0, 3236 /*timeout*/0, 3237 /*getcount_only*/0); 3238 } 3239 3240 return (ERESTART); 3241 } 3242 3243 static int 3244 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3245 { 3246 struct cd_softc *softc; 3247 struct cam_periph *periph; 3248 int error, error_code, sense_key, asc, ascq; 3249 3250 periph = xpt_path_periph(ccb->ccb_h.path); 3251 softc = (struct cd_softc *)periph->softc; 3252 3253 error = 0; 3254 3255 /* 3256 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3257 * CDB comes back with this particular error, try transforming it 3258 * into the 10 byte version. 3259 */ 3260 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3261 error = cd6byteworkaround(ccb); 3262 } else if (scsi_extract_sense_ccb(ccb, 3263 &error_code, &sense_key, &asc, &ascq)) { 3264 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3265 error = cd6byteworkaround(ccb); 3266 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3267 asc == 0x28 && ascq == 0x00) 3268 disk_media_changed(softc->disk, M_NOWAIT); 3269 else if (sense_key == SSD_KEY_NOT_READY && 3270 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3271 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3272 disk_media_gone(softc->disk, M_NOWAIT); 3273 } 3274 } 3275 3276 if (error == ERESTART) 3277 return (error); 3278 3279 /* 3280 * XXX 3281 * Until we have a better way of doing pack validation, 3282 * don't treat UAs as errors. 3283 */ 3284 sense_flags |= SF_RETRY_UA; 3285 return (cam_periph_error(ccb, cam_flags, sense_flags, 3286 &softc->saved_ccb)); 3287 } 3288 3289 static void 3290 cdmediapoll(void *arg) 3291 { 3292 struct cam_periph *periph = arg; 3293 struct cd_softc *softc = periph->softc; 3294 3295 if (softc->flags & CD_FLAG_CHANGER) 3296 return; 3297 3298 if (softc->state == CD_STATE_NORMAL && !softc->tur && 3299 softc->outstanding_cmds == 0) { 3300 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3301 softc->tur = 1; 3302 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 3303 } 3304 } 3305 /* Queue us up again */ 3306 if (cd_poll_period != 0) 3307 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3308 } 3309 3310 /* 3311 * Read table of contents 3312 */ 3313 static int 3314 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3315 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3316 { 3317 struct scsi_read_toc *scsi_cmd; 3318 u_int32_t ntoc; 3319 struct ccb_scsiio *csio; 3320 union ccb *ccb; 3321 int error; 3322 3323 ntoc = len; 3324 error = 0; 3325 3326 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3327 3328 csio = &ccb->csio; 3329 3330 cam_fill_csio(csio, 3331 /* retries */ cd_retry_count, 3332 /* cbfcnp */ cddone, 3333 /* flags */ CAM_DIR_IN, 3334 /* tag_action */ MSG_SIMPLE_Q_TAG, 3335 /* data_ptr */ data, 3336 /* dxfer_len */ len, 3337 /* sense_len */ SSD_FULL_SIZE, 3338 sizeof(struct scsi_read_toc), 3339 /* timeout */ 50000); 3340 3341 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3342 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3343 3344 if (mode == CD_MSF_FORMAT) 3345 scsi_cmd->byte2 |= CD_MSF; 3346 scsi_cmd->from_track = start; 3347 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3348 scsi_cmd->data_len[0] = (ntoc) >> 8; 3349 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3350 3351 scsi_cmd->op_code = READ_TOC; 3352 3353 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3354 /*sense_flags*/SF_RETRY_UA | sense_flags); 3355 3356 xpt_release_ccb(ccb); 3357 3358 return(error); 3359 } 3360 3361 static int 3362 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3363 u_int32_t format, int track, 3364 struct cd_sub_channel_info *data, u_int32_t len) 3365 { 3366 struct scsi_read_subchannel *scsi_cmd; 3367 struct ccb_scsiio *csio; 3368 union ccb *ccb; 3369 int error; 3370 3371 error = 0; 3372 3373 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3374 3375 csio = &ccb->csio; 3376 3377 cam_fill_csio(csio, 3378 /* retries */ cd_retry_count, 3379 /* cbfcnp */ cddone, 3380 /* flags */ CAM_DIR_IN, 3381 /* tag_action */ MSG_SIMPLE_Q_TAG, 3382 /* data_ptr */ (u_int8_t *)data, 3383 /* dxfer_len */ len, 3384 /* sense_len */ SSD_FULL_SIZE, 3385 sizeof(struct scsi_read_subchannel), 3386 /* timeout */ 50000); 3387 3388 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3389 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3390 3391 scsi_cmd->op_code = READ_SUBCHANNEL; 3392 if (mode == CD_MSF_FORMAT) 3393 scsi_cmd->byte1 |= CD_MSF; 3394 scsi_cmd->byte2 = SRS_SUBQ; 3395 scsi_cmd->subchan_format = format; 3396 scsi_cmd->track = track; 3397 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3398 scsi_cmd->control = 0; 3399 3400 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3401 /*sense_flags*/SF_RETRY_UA); 3402 3403 xpt_release_ccb(ccb); 3404 3405 return(error); 3406 } 3407 3408 3409 /* 3410 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3411 * routine. See comments in cd6byteworkaround() for details. 3412 */ 3413 static int 3414 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3415 u_int32_t page) 3416 { 3417 struct ccb_scsiio *csio; 3418 struct cd_softc *softc; 3419 union ccb *ccb; 3420 int param_len; 3421 int error; 3422 3423 softc = (struct cd_softc *)periph->softc; 3424 3425 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3426 3427 csio = &ccb->csio; 3428 3429 data->cdb_size = softc->minimum_command_size; 3430 if (data->cdb_size < 10) 3431 param_len = sizeof(struct cd_mode_data); 3432 else 3433 param_len = sizeof(struct cd_mode_data_10); 3434 3435 /* Don't say we've got more room than we actually allocated */ 3436 param_len = min(param_len, data->alloc_len); 3437 3438 scsi_mode_sense_len(csio, 3439 /* retries */ cd_retry_count, 3440 /* cbfcnp */ cddone, 3441 /* tag_action */ MSG_SIMPLE_Q_TAG, 3442 /* dbd */ 0, 3443 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3444 /* page */ page, 3445 /* param_buf */ data->mode_buf, 3446 /* param_len */ param_len, 3447 /* minimum_cmd_size */ softc->minimum_command_size, 3448 /* sense_len */ SSD_FULL_SIZE, 3449 /* timeout */ 50000); 3450 3451 /* 3452 * It would be nice not to have to do this, but there's no 3453 * available pointer in the CCB that would allow us to stuff the 3454 * mode params structure in there and retrieve it in 3455 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3456 * lets the caller know what CDB size we ended up using, so they 3457 * can find the actual mode page offset. 3458 */ 3459 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3460 3461 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3462 /*sense_flags*/SF_RETRY_UA); 3463 3464 xpt_release_ccb(ccb); 3465 3466 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3467 3468 /* 3469 * This is a bit of belt-and-suspenders checking, but if we run 3470 * into a situation where the target sends back multiple block 3471 * descriptors, we might not have enough space in the buffer to 3472 * see the whole mode page. Better to return an error than 3473 * potentially access memory beyond our malloced region. 3474 */ 3475 if (error == 0) { 3476 u_int32_t data_len; 3477 3478 if (data->cdb_size == 10) { 3479 struct scsi_mode_header_10 *hdr10; 3480 3481 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3482 data_len = scsi_2btoul(hdr10->data_length); 3483 data_len += sizeof(hdr10->data_length); 3484 } else { 3485 struct scsi_mode_header_6 *hdr6; 3486 3487 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3488 data_len = hdr6->data_length; 3489 data_len += sizeof(hdr6->data_length); 3490 } 3491 3492 /* 3493 * Complain if there is more mode data available than we 3494 * allocated space for. This could potentially happen if 3495 * we miscalculated the page length for some reason, if the 3496 * drive returns multiple block descriptors, or if it sets 3497 * the data length incorrectly. 3498 */ 3499 if (data_len > data->alloc_len) { 3500 xpt_print(periph->path, "allocated modepage %d length " 3501 "%d < returned length %d\n", page, data->alloc_len, 3502 data_len); 3503 error = ENOSPC; 3504 } 3505 } 3506 return (error); 3507 } 3508 3509 /* 3510 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3511 * routine. See comments in cd6byteworkaround() for details. 3512 */ 3513 static int 3514 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3515 { 3516 struct ccb_scsiio *csio; 3517 struct cd_softc *softc; 3518 union ccb *ccb; 3519 int cdb_size, param_len; 3520 int error; 3521 3522 softc = (struct cd_softc *)periph->softc; 3523 3524 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3525 3526 csio = &ccb->csio; 3527 3528 error = 0; 3529 3530 /* 3531 * If the data is formatted for the 10 byte version of the mode 3532 * select parameter list, we need to use the 10 byte CDB. 3533 * Otherwise, we use whatever the stored minimum command size. 3534 */ 3535 if (data->cdb_size == 10) 3536 cdb_size = data->cdb_size; 3537 else 3538 cdb_size = softc->minimum_command_size; 3539 3540 if (cdb_size >= 10) { 3541 struct scsi_mode_header_10 *mode_header; 3542 u_int32_t data_len; 3543 3544 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3545 3546 data_len = scsi_2btoul(mode_header->data_length); 3547 3548 scsi_ulto2b(0, mode_header->data_length); 3549 /* 3550 * SONY drives do not allow a mode select with a medium_type 3551 * value that has just been returned by a mode sense; use a 3552 * medium_type of 0 (Default) instead. 3553 */ 3554 mode_header->medium_type = 0; 3555 3556 /* 3557 * Pass back whatever the drive passed to us, plus the size 3558 * of the data length field. 3559 */ 3560 param_len = data_len + sizeof(mode_header->data_length); 3561 3562 } else { 3563 struct scsi_mode_header_6 *mode_header; 3564 3565 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3566 3567 param_len = mode_header->data_length + 1; 3568 3569 mode_header->data_length = 0; 3570 /* 3571 * SONY drives do not allow a mode select with a medium_type 3572 * value that has just been returned by a mode sense; use a 3573 * medium_type of 0 (Default) instead. 3574 */ 3575 mode_header->medium_type = 0; 3576 } 3577 3578 /* Don't say we've got more room than we actually allocated */ 3579 param_len = min(param_len, data->alloc_len); 3580 3581 scsi_mode_select_len(csio, 3582 /* retries */ cd_retry_count, 3583 /* cbfcnp */ cddone, 3584 /* tag_action */ MSG_SIMPLE_Q_TAG, 3585 /* scsi_page_fmt */ 1, 3586 /* save_pages */ 0, 3587 /* param_buf */ data->mode_buf, 3588 /* param_len */ param_len, 3589 /* minimum_cmd_size */ cdb_size, 3590 /* sense_len */ SSD_FULL_SIZE, 3591 /* timeout */ 50000); 3592 3593 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3594 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3595 3596 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3597 /*sense_flags*/SF_RETRY_UA); 3598 3599 xpt_release_ccb(ccb); 3600 3601 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3602 3603 return (error); 3604 } 3605 3606 3607 static int 3608 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3609 { 3610 struct ccb_scsiio *csio; 3611 union ccb *ccb; 3612 int error; 3613 u_int8_t cdb_len; 3614 3615 error = 0; 3616 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3617 csio = &ccb->csio; 3618 /* 3619 * Use the smallest possible command to perform the operation. 3620 */ 3621 if ((len & 0xffff0000) == 0) { 3622 /* 3623 * We can fit in a 10 byte cdb. 3624 */ 3625 struct scsi_play_10 *scsi_cmd; 3626 3627 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3628 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3629 scsi_cmd->op_code = PLAY_10; 3630 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3631 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3632 cdb_len = sizeof(*scsi_cmd); 3633 } else { 3634 struct scsi_play_12 *scsi_cmd; 3635 3636 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3637 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3638 scsi_cmd->op_code = PLAY_12; 3639 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3640 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3641 cdb_len = sizeof(*scsi_cmd); 3642 } 3643 cam_fill_csio(csio, 3644 /*retries*/ cd_retry_count, 3645 cddone, 3646 /*flags*/CAM_DIR_NONE, 3647 MSG_SIMPLE_Q_TAG, 3648 /*dataptr*/NULL, 3649 /*datalen*/0, 3650 /*sense_len*/SSD_FULL_SIZE, 3651 cdb_len, 3652 /*timeout*/50 * 1000); 3653 3654 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3655 /*sense_flags*/SF_RETRY_UA); 3656 3657 xpt_release_ccb(ccb); 3658 3659 return(error); 3660 } 3661 3662 static int 3663 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3664 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3665 { 3666 struct scsi_play_msf *scsi_cmd; 3667 struct ccb_scsiio *csio; 3668 union ccb *ccb; 3669 int error; 3670 3671 error = 0; 3672 3673 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3674 3675 csio = &ccb->csio; 3676 3677 cam_fill_csio(csio, 3678 /* retries */ cd_retry_count, 3679 /* cbfcnp */ cddone, 3680 /* flags */ CAM_DIR_NONE, 3681 /* tag_action */ MSG_SIMPLE_Q_TAG, 3682 /* data_ptr */ NULL, 3683 /* dxfer_len */ 0, 3684 /* sense_len */ SSD_FULL_SIZE, 3685 sizeof(struct scsi_play_msf), 3686 /* timeout */ 50000); 3687 3688 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3689 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3690 3691 scsi_cmd->op_code = PLAY_MSF; 3692 scsi_cmd->start_m = startm; 3693 scsi_cmd->start_s = starts; 3694 scsi_cmd->start_f = startf; 3695 scsi_cmd->end_m = endm; 3696 scsi_cmd->end_s = ends; 3697 scsi_cmd->end_f = endf; 3698 3699 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3700 /*sense_flags*/SF_RETRY_UA); 3701 3702 xpt_release_ccb(ccb); 3703 3704 return(error); 3705 } 3706 3707 3708 static int 3709 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3710 u_int32_t etrack, u_int32_t eindex) 3711 { 3712 struct scsi_play_track *scsi_cmd; 3713 struct ccb_scsiio *csio; 3714 union ccb *ccb; 3715 int error; 3716 3717 error = 0; 3718 3719 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3720 3721 csio = &ccb->csio; 3722 3723 cam_fill_csio(csio, 3724 /* retries */ cd_retry_count, 3725 /* cbfcnp */ cddone, 3726 /* flags */ CAM_DIR_NONE, 3727 /* tag_action */ MSG_SIMPLE_Q_TAG, 3728 /* data_ptr */ NULL, 3729 /* dxfer_len */ 0, 3730 /* sense_len */ SSD_FULL_SIZE, 3731 sizeof(struct scsi_play_track), 3732 /* timeout */ 50000); 3733 3734 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3735 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3736 3737 scsi_cmd->op_code = PLAY_TRACK; 3738 scsi_cmd->start_track = strack; 3739 scsi_cmd->start_index = sindex; 3740 scsi_cmd->end_track = etrack; 3741 scsi_cmd->end_index = eindex; 3742 3743 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3744 /*sense_flags*/SF_RETRY_UA); 3745 3746 xpt_release_ccb(ccb); 3747 3748 return(error); 3749 } 3750 3751 static int 3752 cdpause(struct cam_periph *periph, u_int32_t go) 3753 { 3754 struct scsi_pause *scsi_cmd; 3755 struct ccb_scsiio *csio; 3756 union ccb *ccb; 3757 int error; 3758 3759 error = 0; 3760 3761 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3762 3763 csio = &ccb->csio; 3764 3765 cam_fill_csio(csio, 3766 /* retries */ cd_retry_count, 3767 /* cbfcnp */ cddone, 3768 /* flags */ CAM_DIR_NONE, 3769 /* tag_action */ MSG_SIMPLE_Q_TAG, 3770 /* data_ptr */ NULL, 3771 /* dxfer_len */ 0, 3772 /* sense_len */ SSD_FULL_SIZE, 3773 sizeof(struct scsi_pause), 3774 /* timeout */ 50000); 3775 3776 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3777 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3778 3779 scsi_cmd->op_code = PAUSE; 3780 scsi_cmd->resume = go; 3781 3782 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3783 /*sense_flags*/SF_RETRY_UA); 3784 3785 xpt_release_ccb(ccb); 3786 3787 return(error); 3788 } 3789 3790 static int 3791 cdstartunit(struct cam_periph *periph, int load) 3792 { 3793 union ccb *ccb; 3794 int error; 3795 3796 error = 0; 3797 3798 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3799 3800 scsi_start_stop(&ccb->csio, 3801 /* retries */ cd_retry_count, 3802 /* cbfcnp */ cddone, 3803 /* tag_action */ MSG_SIMPLE_Q_TAG, 3804 /* start */ TRUE, 3805 /* load_eject */ load, 3806 /* immediate */ FALSE, 3807 /* sense_len */ SSD_FULL_SIZE, 3808 /* timeout */ 50000); 3809 3810 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3811 /*sense_flags*/SF_RETRY_UA); 3812 3813 xpt_release_ccb(ccb); 3814 3815 return(error); 3816 } 3817 3818 static int 3819 cdstopunit(struct cam_periph *periph, u_int32_t eject) 3820 { 3821 union ccb *ccb; 3822 int error; 3823 3824 error = 0; 3825 3826 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3827 3828 scsi_start_stop(&ccb->csio, 3829 /* retries */ cd_retry_count, 3830 /* cbfcnp */ cddone, 3831 /* tag_action */ MSG_SIMPLE_Q_TAG, 3832 /* start */ FALSE, 3833 /* load_eject */ eject, 3834 /* immediate */ FALSE, 3835 /* sense_len */ SSD_FULL_SIZE, 3836 /* timeout */ 50000); 3837 3838 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3839 /*sense_flags*/SF_RETRY_UA); 3840 3841 xpt_release_ccb(ccb); 3842 3843 return(error); 3844 } 3845 3846 static int 3847 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3848 { 3849 struct scsi_set_speed *scsi_cmd; 3850 struct ccb_scsiio *csio; 3851 union ccb *ccb; 3852 int error; 3853 3854 error = 0; 3855 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3856 csio = &ccb->csio; 3857 3858 /* Preserve old behavior: units in multiples of CDROM speed */ 3859 if (rdspeed < 177) 3860 rdspeed *= 177; 3861 if (wrspeed < 177) 3862 wrspeed *= 177; 3863 3864 cam_fill_csio(csio, 3865 /* retries */ cd_retry_count, 3866 /* cbfcnp */ cddone, 3867 /* flags */ CAM_DIR_NONE, 3868 /* tag_action */ MSG_SIMPLE_Q_TAG, 3869 /* data_ptr */ NULL, 3870 /* dxfer_len */ 0, 3871 /* sense_len */ SSD_FULL_SIZE, 3872 sizeof(struct scsi_set_speed), 3873 /* timeout */ 50000); 3874 3875 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3876 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3877 3878 scsi_cmd->opcode = SET_CD_SPEED; 3879 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3880 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3881 3882 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3883 /*sense_flags*/SF_RETRY_UA); 3884 3885 xpt_release_ccb(ccb); 3886 3887 return(error); 3888 } 3889 3890 static int 3891 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3892 { 3893 union ccb *ccb; 3894 u_int8_t *databuf; 3895 u_int32_t lba; 3896 int error; 3897 int length; 3898 3899 error = 0; 3900 databuf = NULL; 3901 lba = 0; 3902 3903 switch (authinfo->format) { 3904 case DVD_REPORT_AGID: 3905 length = sizeof(struct scsi_report_key_data_agid); 3906 break; 3907 case DVD_REPORT_CHALLENGE: 3908 length = sizeof(struct scsi_report_key_data_challenge); 3909 break; 3910 case DVD_REPORT_KEY1: 3911 length = sizeof(struct scsi_report_key_data_key1_key2); 3912 break; 3913 case DVD_REPORT_TITLE_KEY: 3914 length = sizeof(struct scsi_report_key_data_title); 3915 /* The lba field is only set for the title key */ 3916 lba = authinfo->lba; 3917 break; 3918 case DVD_REPORT_ASF: 3919 length = sizeof(struct scsi_report_key_data_asf); 3920 break; 3921 case DVD_REPORT_RPC: 3922 length = sizeof(struct scsi_report_key_data_rpc); 3923 break; 3924 case DVD_INVALIDATE_AGID: 3925 length = 0; 3926 break; 3927 default: 3928 return (EINVAL); 3929 } 3930 3931 if (length != 0) { 3932 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3933 } else 3934 databuf = NULL; 3935 3936 cam_periph_lock(periph); 3937 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3938 3939 scsi_report_key(&ccb->csio, 3940 /* retries */ cd_retry_count, 3941 /* cbfcnp */ cddone, 3942 /* tag_action */ MSG_SIMPLE_Q_TAG, 3943 /* lba */ lba, 3944 /* agid */ authinfo->agid, 3945 /* key_format */ authinfo->format, 3946 /* data_ptr */ databuf, 3947 /* dxfer_len */ length, 3948 /* sense_len */ SSD_FULL_SIZE, 3949 /* timeout */ 50000); 3950 3951 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3952 /*sense_flags*/SF_RETRY_UA); 3953 3954 if (error != 0) 3955 goto bailout; 3956 3957 if (ccb->csio.resid != 0) { 3958 xpt_print(periph->path, "warning, residual for report key " 3959 "command is %d\n", ccb->csio.resid); 3960 } 3961 3962 switch(authinfo->format) { 3963 case DVD_REPORT_AGID: { 3964 struct scsi_report_key_data_agid *agid_data; 3965 3966 agid_data = (struct scsi_report_key_data_agid *)databuf; 3967 3968 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3969 RKD_AGID_SHIFT; 3970 break; 3971 } 3972 case DVD_REPORT_CHALLENGE: { 3973 struct scsi_report_key_data_challenge *chal_data; 3974 3975 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3976 3977 bcopy(chal_data->challenge_key, authinfo->keychal, 3978 min(sizeof(chal_data->challenge_key), 3979 sizeof(authinfo->keychal))); 3980 break; 3981 } 3982 case DVD_REPORT_KEY1: { 3983 struct scsi_report_key_data_key1_key2 *key1_data; 3984 3985 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3986 3987 bcopy(key1_data->key1, authinfo->keychal, 3988 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3989 break; 3990 } 3991 case DVD_REPORT_TITLE_KEY: { 3992 struct scsi_report_key_data_title *title_data; 3993 3994 title_data = (struct scsi_report_key_data_title *)databuf; 3995 3996 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3997 RKD_TITLE_CPM_SHIFT; 3998 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3999 RKD_TITLE_CP_SEC_SHIFT; 4000 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 4001 RKD_TITLE_CMGS_SHIFT; 4002 bcopy(title_data->title_key, authinfo->keychal, 4003 min(sizeof(title_data->title_key), 4004 sizeof(authinfo->keychal))); 4005 break; 4006 } 4007 case DVD_REPORT_ASF: { 4008 struct scsi_report_key_data_asf *asf_data; 4009 4010 asf_data = (struct scsi_report_key_data_asf *)databuf; 4011 4012 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 4013 break; 4014 } 4015 case DVD_REPORT_RPC: { 4016 struct scsi_report_key_data_rpc *rpc_data; 4017 4018 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 4019 4020 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 4021 RKD_RPC_TYPE_SHIFT; 4022 authinfo->vend_rsts = 4023 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 4024 RKD_RPC_VENDOR_RESET_SHIFT; 4025 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4026 authinfo->region = rpc_data->region_mask; 4027 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4028 break; 4029 } 4030 case DVD_INVALIDATE_AGID: 4031 break; 4032 default: 4033 /* This should be impossible, since we checked above */ 4034 error = EINVAL; 4035 goto bailout; 4036 break; /* NOTREACHED */ 4037 } 4038 4039 bailout: 4040 xpt_release_ccb(ccb); 4041 cam_periph_unlock(periph); 4042 4043 if (databuf != NULL) 4044 free(databuf, M_DEVBUF); 4045 4046 return(error); 4047 } 4048 4049 static int 4050 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4051 { 4052 union ccb *ccb; 4053 u_int8_t *databuf; 4054 int length; 4055 int error; 4056 4057 error = 0; 4058 databuf = NULL; 4059 4060 switch(authinfo->format) { 4061 case DVD_SEND_CHALLENGE: { 4062 struct scsi_report_key_data_challenge *challenge_data; 4063 4064 length = sizeof(*challenge_data); 4065 4066 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4067 4068 databuf = (u_int8_t *)challenge_data; 4069 4070 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4071 challenge_data->data_len); 4072 4073 bcopy(authinfo->keychal, challenge_data->challenge_key, 4074 min(sizeof(authinfo->keychal), 4075 sizeof(challenge_data->challenge_key))); 4076 break; 4077 } 4078 case DVD_SEND_KEY2: { 4079 struct scsi_report_key_data_key1_key2 *key2_data; 4080 4081 length = sizeof(*key2_data); 4082 4083 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4084 4085 databuf = (u_int8_t *)key2_data; 4086 4087 scsi_ulto2b(length - sizeof(key2_data->data_len), 4088 key2_data->data_len); 4089 4090 bcopy(authinfo->keychal, key2_data->key1, 4091 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4092 4093 break; 4094 } 4095 case DVD_SEND_RPC: { 4096 struct scsi_send_key_data_rpc *rpc_data; 4097 4098 length = sizeof(*rpc_data); 4099 4100 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4101 4102 databuf = (u_int8_t *)rpc_data; 4103 4104 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4105 rpc_data->data_len); 4106 4107 rpc_data->region_code = authinfo->region; 4108 break; 4109 } 4110 default: 4111 return (EINVAL); 4112 } 4113 4114 cam_periph_lock(periph); 4115 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4116 4117 scsi_send_key(&ccb->csio, 4118 /* retries */ cd_retry_count, 4119 /* cbfcnp */ cddone, 4120 /* tag_action */ MSG_SIMPLE_Q_TAG, 4121 /* agid */ authinfo->agid, 4122 /* key_format */ authinfo->format, 4123 /* data_ptr */ databuf, 4124 /* dxfer_len */ length, 4125 /* sense_len */ SSD_FULL_SIZE, 4126 /* timeout */ 50000); 4127 4128 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4129 /*sense_flags*/SF_RETRY_UA); 4130 4131 xpt_release_ccb(ccb); 4132 cam_periph_unlock(periph); 4133 4134 if (databuf != NULL) 4135 free(databuf, M_DEVBUF); 4136 4137 return(error); 4138 } 4139 4140 static int 4141 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4142 { 4143 union ccb *ccb; 4144 u_int8_t *databuf; 4145 u_int32_t address; 4146 int error; 4147 int length; 4148 4149 error = 0; 4150 databuf = NULL; 4151 /* The address is reserved for many of the formats */ 4152 address = 0; 4153 4154 switch(dvdstruct->format) { 4155 case DVD_STRUCT_PHYSICAL: 4156 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4157 break; 4158 case DVD_STRUCT_COPYRIGHT: 4159 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4160 break; 4161 case DVD_STRUCT_DISCKEY: 4162 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4163 break; 4164 case DVD_STRUCT_BCA: 4165 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4166 break; 4167 case DVD_STRUCT_MANUFACT: 4168 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4169 break; 4170 case DVD_STRUCT_CMI: 4171 return (ENODEV); 4172 case DVD_STRUCT_PROTDISCID: 4173 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4174 break; 4175 case DVD_STRUCT_DISCKEYBLOCK: 4176 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4177 break; 4178 case DVD_STRUCT_DDS: 4179 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4180 break; 4181 case DVD_STRUCT_MEDIUM_STAT: 4182 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4183 break; 4184 case DVD_STRUCT_SPARE_AREA: 4185 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4186 break; 4187 case DVD_STRUCT_RMD_LAST: 4188 return (ENODEV); 4189 case DVD_STRUCT_RMD_RMA: 4190 return (ENODEV); 4191 case DVD_STRUCT_PRERECORDED: 4192 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4193 break; 4194 case DVD_STRUCT_UNIQUEID: 4195 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4196 break; 4197 case DVD_STRUCT_DCB: 4198 return (ENODEV); 4199 case DVD_STRUCT_LIST: 4200 /* 4201 * This is the maximum allocation length for the READ DVD 4202 * STRUCTURE command. There's nothing in the MMC3 spec 4203 * that indicates a limit in the amount of data that can 4204 * be returned from this call, other than the limits 4205 * imposed by the 2-byte length variables. 4206 */ 4207 length = 65535; 4208 break; 4209 default: 4210 return (EINVAL); 4211 } 4212 4213 if (length != 0) { 4214 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4215 } else 4216 databuf = NULL; 4217 4218 cam_periph_lock(periph); 4219 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4220 4221 scsi_read_dvd_structure(&ccb->csio, 4222 /* retries */ cd_retry_count, 4223 /* cbfcnp */ cddone, 4224 /* tag_action */ MSG_SIMPLE_Q_TAG, 4225 /* lba */ address, 4226 /* layer_number */ dvdstruct->layer_num, 4227 /* key_format */ dvdstruct->format, 4228 /* agid */ dvdstruct->agid, 4229 /* data_ptr */ databuf, 4230 /* dxfer_len */ length, 4231 /* sense_len */ SSD_FULL_SIZE, 4232 /* timeout */ 50000); 4233 4234 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4235 /*sense_flags*/SF_RETRY_UA); 4236 4237 if (error != 0) 4238 goto bailout; 4239 4240 switch(dvdstruct->format) { 4241 case DVD_STRUCT_PHYSICAL: { 4242 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4243 struct dvd_layer *outlayer; 4244 struct scsi_read_dvd_struct_data_physical *phys_data; 4245 4246 phys_data = 4247 (struct scsi_read_dvd_struct_data_physical *)databuf; 4248 inlayer = &phys_data->layer_desc; 4249 outlayer = (struct dvd_layer *)&dvdstruct->data; 4250 4251 dvdstruct->length = sizeof(*inlayer); 4252 4253 outlayer->book_type = (inlayer->book_type_version & 4254 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4255 outlayer->book_version = (inlayer->book_type_version & 4256 RDSD_BOOK_VERSION_MASK); 4257 outlayer->disc_size = (inlayer->disc_size_max_rate & 4258 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4259 outlayer->max_rate = (inlayer->disc_size_max_rate & 4260 RDSD_MAX_RATE_MASK); 4261 outlayer->nlayers = (inlayer->layer_info & 4262 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4263 outlayer->track_path = (inlayer->layer_info & 4264 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4265 outlayer->layer_type = (inlayer->layer_info & 4266 RDSD_LAYER_TYPE_MASK); 4267 outlayer->linear_density = (inlayer->density & 4268 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4269 outlayer->track_density = (inlayer->density & 4270 RDSD_TRACK_DENSITY_MASK); 4271 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4272 RDSD_BCA_SHIFT; 4273 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4274 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4275 outlayer->end_sector_l0 = 4276 scsi_3btoul(inlayer->end_sector_layer0); 4277 break; 4278 } 4279 case DVD_STRUCT_COPYRIGHT: { 4280 struct scsi_read_dvd_struct_data_copyright *copy_data; 4281 4282 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4283 databuf; 4284 4285 dvdstruct->cpst = copy_data->cps_type; 4286 dvdstruct->rmi = copy_data->region_info; 4287 dvdstruct->length = 0; 4288 4289 break; 4290 } 4291 default: 4292 /* 4293 * Tell the user what the overall length is, no matter 4294 * what we can actually fit in the data buffer. 4295 */ 4296 dvdstruct->length = length - ccb->csio.resid - 4297 sizeof(struct scsi_read_dvd_struct_data_header); 4298 4299 /* 4300 * But only actually copy out the smaller of what we read 4301 * in or what the structure can take. 4302 */ 4303 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4304 dvdstruct->data, 4305 min(sizeof(dvdstruct->data), dvdstruct->length)); 4306 break; 4307 } 4308 4309 bailout: 4310 xpt_release_ccb(ccb); 4311 cam_periph_unlock(periph); 4312 4313 if (databuf != NULL) 4314 free(databuf, M_DEVBUF); 4315 4316 return(error); 4317 } 4318 4319 void 4320 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4321 void (*cbfcnp)(struct cam_periph *, union ccb *), 4322 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4323 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4324 u_int8_t sense_len, u_int32_t timeout) 4325 { 4326 struct scsi_report_key *scsi_cmd; 4327 4328 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4329 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4330 scsi_cmd->opcode = REPORT_KEY; 4331 scsi_ulto4b(lba, scsi_cmd->lba); 4332 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4333 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4334 (key_format & RK_KF_KEYFORMAT_MASK); 4335 4336 cam_fill_csio(csio, 4337 retries, 4338 cbfcnp, 4339 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4340 tag_action, 4341 /*data_ptr*/ data_ptr, 4342 /*dxfer_len*/ dxfer_len, 4343 sense_len, 4344 sizeof(*scsi_cmd), 4345 timeout); 4346 } 4347 4348 void 4349 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4350 void (*cbfcnp)(struct cam_periph *, union ccb *), 4351 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4352 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4353 u_int32_t timeout) 4354 { 4355 struct scsi_send_key *scsi_cmd; 4356 4357 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4358 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4359 scsi_cmd->opcode = SEND_KEY; 4360 4361 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4362 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4363 (key_format & RK_KF_KEYFORMAT_MASK); 4364 4365 cam_fill_csio(csio, 4366 retries, 4367 cbfcnp, 4368 /*flags*/ CAM_DIR_OUT, 4369 tag_action, 4370 /*data_ptr*/ data_ptr, 4371 /*dxfer_len*/ dxfer_len, 4372 sense_len, 4373 sizeof(*scsi_cmd), 4374 timeout); 4375 } 4376 4377 4378 void 4379 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4380 void (*cbfcnp)(struct cam_periph *, union ccb *), 4381 u_int8_t tag_action, u_int32_t address, 4382 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4383 u_int8_t *data_ptr, u_int32_t dxfer_len, 4384 u_int8_t sense_len, u_int32_t timeout) 4385 { 4386 struct scsi_read_dvd_structure *scsi_cmd; 4387 4388 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4389 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4390 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4391 4392 scsi_ulto4b(address, scsi_cmd->address); 4393 scsi_cmd->layer_number = layer_number; 4394 scsi_cmd->format = format; 4395 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4396 /* The AGID is the top two bits of this byte */ 4397 scsi_cmd->agid = agid << 6; 4398 4399 cam_fill_csio(csio, 4400 retries, 4401 cbfcnp, 4402 /*flags*/ CAM_DIR_IN, 4403 tag_action, 4404 /*data_ptr*/ data_ptr, 4405 /*dxfer_len*/ dxfer_len, 4406 sense_len, 4407 sizeof(*scsi_cmd), 4408 timeout); 4409 } 4410