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_DEV); 585 } 586 } 587 /* FALLTHROUGH */ 588 case AC_SENT_BDR: 589 case AC_BUS_RESET: 590 { 591 struct ccb_hdr *ccbh; 592 593 softc = (struct cd_softc *)periph->softc; 594 /* 595 * Don't fail on the expected unit attention 596 * that will occur. 597 */ 598 softc->flags |= CD_FLAG_RETRY_UA; 599 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 600 ccbh->ccb_state |= CD_CCB_RETRY_UA; 601 /* FALLTHROUGH */ 602 } 603 default: 604 cam_periph_async(periph, code, path, arg); 605 break; 606 } 607 } 608 609 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 (periph == NULL) { 696 printf("cdregister: periph was NULL!!\n"); 697 return(CAM_REQ_CMP_ERR); 698 } 699 if (cgd == NULL) { 700 printf("cdregister: no getdev CCB, can't register device\n"); 701 return(CAM_REQ_CMP_ERR); 702 } 703 704 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 705 M_NOWAIT | M_ZERO); 706 if (softc == NULL) { 707 printf("cdregister: Unable to probe new device. " 708 "Unable to allocate softc\n"); 709 return(CAM_REQ_CMP_ERR); 710 } 711 712 LIST_INIT(&softc->pending_ccbs); 713 STAILQ_INIT(&softc->mode_queue); 714 softc->state = CD_STATE_PROBE; 715 bioq_init(&softc->bio_queue); 716 if (SID_IS_REMOVABLE(&cgd->inq_data)) 717 softc->flags |= CD_FLAG_DISC_REMOVABLE; 718 719 periph->softc = softc; 720 softc->periph = periph; 721 722 /* 723 * See if this device has any quirks. 724 */ 725 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 726 (caddr_t)cd_quirk_table, 727 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 728 sizeof(*cd_quirk_table), scsi_inquiry_match); 729 730 if (match != NULL) 731 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 732 else 733 softc->quirks = CD_Q_NONE; 734 735 /* Check if the SIM does not want 6 byte commands */ 736 bzero(&cpi, sizeof(cpi)); 737 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 738 cpi.ccb_h.func_code = XPT_PATH_INQ; 739 xpt_action((union ccb *)&cpi); 740 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 741 softc->quirks |= CD_Q_10_BYTE_ONLY; 742 743 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 744 745 /* The default is 6 byte commands, unless quirked otherwise */ 746 if (softc->quirks & CD_Q_10_BYTE_ONLY) 747 softc->minimum_command_size = 10; 748 else 749 softc->minimum_command_size = 6; 750 751 /* 752 * Refcount and block open attempts until we are setup 753 * Can't block 754 */ 755 (void)cam_periph_hold(periph, PRIBIO); 756 cam_periph_unlock(periph); 757 /* 758 * Load the user's default, if any. 759 */ 760 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 761 periph->unit_number); 762 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 763 764 /* 6 and 10 are the only permissible values here. */ 765 if (softc->minimum_command_size < 6) 766 softc->minimum_command_size = 6; 767 else if (softc->minimum_command_size > 6) 768 softc->minimum_command_size = 10; 769 770 /* 771 * We need to register the statistics structure for this device, 772 * but we don't have the blocksize yet for it. So, we register 773 * the structure and indicate that we don't have the blocksize 774 * yet. Unlike other SCSI peripheral drivers, we explicitly set 775 * the device type here to be CDROM, rather than just ORing in 776 * the device type. This is because this driver can attach to either 777 * CDROM or WORM devices, and we want this peripheral driver to 778 * show up in the devstat list as a CD peripheral driver, not a 779 * WORM peripheral driver. WORM drives will also have the WORM 780 * driver attached to them. 781 */ 782 softc->disk = disk_alloc(); 783 softc->disk->d_devstat = devstat_new_entry("cd", 784 periph->unit_number, 0, 785 DEVSTAT_BS_UNAVAILABLE, 786 DEVSTAT_TYPE_CDROM | 787 XPORT_DEVSTAT_TYPE(cpi.transport), 788 DEVSTAT_PRIORITY_CD); 789 softc->disk->d_open = cdopen; 790 softc->disk->d_close = cdclose; 791 softc->disk->d_strategy = cdstrategy; 792 softc->disk->d_gone = cddiskgonecb; 793 softc->disk->d_ioctl = cdioctl; 794 softc->disk->d_name = "cd"; 795 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 796 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 797 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 798 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 799 cgd->inq_data.product, sizeof(cgd->inq_data.product), 800 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 801 softc->disk->d_unit = periph->unit_number; 802 softc->disk->d_drv1 = periph; 803 if (cpi.maxio == 0) 804 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 805 else if (cpi.maxio > MAXPHYS) 806 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 807 else 808 softc->disk->d_maxsize = cpi.maxio; 809 softc->disk->d_flags = 0; 810 softc->disk->d_hba_vendor = cpi.hba_vendor; 811 softc->disk->d_hba_device = cpi.hba_device; 812 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 813 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 814 815 /* 816 * Acquire a reference to the periph before we register with GEOM. 817 * We'll release this reference once GEOM calls us back (via 818 * dadiskgonecb()) telling us that our provider has been freed. 819 */ 820 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 821 xpt_print(periph->path, "%s: lost periph during " 822 "registration!\n", __func__); 823 cam_periph_lock(periph); 824 return (CAM_REQ_CMP_ERR); 825 } 826 827 disk_create(softc->disk, DISK_VERSION); 828 cam_periph_lock(periph); 829 830 /* 831 * Add an async callback so that we get 832 * notified if this device goes away. 833 */ 834 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 835 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 836 837 /* 838 * If the target lun is greater than 0, we most likely have a CD 839 * changer device. Check the quirk entries as well, though, just 840 * in case someone has a CD tower with one lun per drive or 841 * something like that. Also, if we know up front that a 842 * particular device is a changer, we can mark it as such starting 843 * with lun 0, instead of lun 1. It shouldn't be necessary to have 844 * a quirk entry to define something as a changer, however. 845 */ 846 if (((cgd->ccb_h.target_lun > 0) 847 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 848 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 849 struct cdchanger *nchanger; 850 struct cam_periph *nperiph; 851 struct cam_path *path; 852 cam_status status; 853 int found; 854 855 /* Set the changer flag in the current device's softc */ 856 softc->flags |= CD_FLAG_CHANGER; 857 858 /* 859 * Now, look around for an existing changer device with the 860 * same path and target ID as the current device. 861 */ 862 mtx_lock(&changerq_mtx); 863 for (found = 0, 864 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 865 nchanger != NULL; 866 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 867 if ((nchanger->path_id == cgd->ccb_h.path_id) 868 && (nchanger->target_id == cgd->ccb_h.target_id)) { 869 found = 1; 870 break; 871 } 872 } 873 mtx_unlock(&changerq_mtx); 874 875 /* 876 * If we found a matching entry, just add this device to 877 * the list of devices on this changer. 878 */ 879 if (found == 1) { 880 struct chdevlist *chlunhead; 881 882 chlunhead = &nchanger->chluns; 883 884 /* 885 * XXX KDM look at consolidating this code with the 886 * code below in a separate function. 887 */ 888 889 /* 890 * Create a path with lun id 0, and see if we can 891 * find a matching device 892 */ 893 status = xpt_create_path(&path, /*periph*/ periph, 894 cgd->ccb_h.path_id, 895 cgd->ccb_h.target_id, 0); 896 897 if ((status == CAM_REQ_CMP) 898 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 899 struct cd_softc *nsoftc; 900 901 nsoftc = (struct cd_softc *)nperiph->softc; 902 903 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 904 nsoftc->flags |= CD_FLAG_CHANGER; 905 nchanger->num_devices++; 906 if (camq_resize(&nchanger->devq, 907 nchanger->num_devices)!=CAM_REQ_CMP){ 908 printf("cdregister: " 909 "camq_resize " 910 "failed, changer " 911 "support may " 912 "be messed up\n"); 913 } 914 nsoftc->changer = nchanger; 915 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 916 917 STAILQ_INSERT_TAIL(&nchanger->chluns, 918 nsoftc,changer_links); 919 } 920 xpt_free_path(path); 921 } else if (status == CAM_REQ_CMP) 922 xpt_free_path(path); 923 else { 924 printf("cdregister: unable to allocate path\n" 925 "cdregister: changer support may be " 926 "broken\n"); 927 } 928 929 nchanger->num_devices++; 930 931 softc->changer = nchanger; 932 softc->pinfo.index = CAM_UNQUEUED_INDEX; 933 934 if (camq_resize(&nchanger->devq, 935 nchanger->num_devices) != CAM_REQ_CMP) { 936 printf("cdregister: camq_resize " 937 "failed, changer support may " 938 "be messed up\n"); 939 } 940 941 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 942 } 943 /* 944 * In this case, we don't already have an entry for this 945 * particular changer, so we need to create one, add it to 946 * the queue, and queue this device on the list for this 947 * changer. Before we queue this device, however, we need 948 * to search for lun id 0 on this target, and add it to the 949 * queue first, if it exists. (and if it hasn't already 950 * been marked as part of the changer.) 951 */ 952 else { 953 nchanger = malloc(sizeof(struct cdchanger), 954 M_DEVBUF, M_NOWAIT | M_ZERO); 955 if (nchanger == NULL) { 956 softc->flags &= ~CD_FLAG_CHANGER; 957 printf("cdregister: unable to malloc " 958 "changer structure\ncdregister: " 959 "changer support disabled\n"); 960 961 /* 962 * Yes, gotos can be gross but in this case 963 * I think it's justified.. 964 */ 965 goto cdregisterexit; 966 } 967 if (camq_init(&nchanger->devq, 1) != 0) { 968 softc->flags &= ~CD_FLAG_CHANGER; 969 printf("cdregister: changer support " 970 "disabled\n"); 971 goto cdregisterexit; 972 } 973 974 nchanger->path_id = cgd->ccb_h.path_id; 975 nchanger->target_id = cgd->ccb_h.target_id; 976 977 /* this is superfluous, but it makes things clearer */ 978 nchanger->num_devices = 0; 979 980 STAILQ_INIT(&nchanger->chluns); 981 982 callout_init_mtx(&nchanger->long_handle, 983 periph->sim->mtx, 0); 984 callout_init_mtx(&nchanger->short_handle, 985 periph->sim->mtx, 0); 986 987 mtx_lock(&changerq_mtx); 988 num_changers++; 989 STAILQ_INSERT_TAIL(&changerq, nchanger, 990 changer_links); 991 mtx_unlock(&changerq_mtx); 992 993 /* 994 * Create a path with lun id 0, and see if we can 995 * find a matching device 996 */ 997 status = xpt_create_path(&path, /*periph*/ periph, 998 cgd->ccb_h.path_id, 999 cgd->ccb_h.target_id, 0); 1000 1001 /* 1002 * If we were able to allocate the path, and if we 1003 * find a matching device and it isn't already 1004 * marked as part of a changer, then we add it to 1005 * the current changer. 1006 */ 1007 if ((status == CAM_REQ_CMP) 1008 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1009 && ((((struct cd_softc *)periph->softc)->flags & 1010 CD_FLAG_CHANGER) == 0)) { 1011 struct cd_softc *nsoftc; 1012 1013 nsoftc = (struct cd_softc *)nperiph->softc; 1014 1015 nsoftc->flags |= CD_FLAG_CHANGER; 1016 nchanger->num_devices++; 1017 if (camq_resize(&nchanger->devq, 1018 nchanger->num_devices) != CAM_REQ_CMP) { 1019 printf("cdregister: camq_resize " 1020 "failed, changer support may " 1021 "be messed up\n"); 1022 } 1023 nsoftc->changer = nchanger; 1024 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1025 1026 STAILQ_INSERT_TAIL(&nchanger->chluns, 1027 nsoftc, changer_links); 1028 xpt_free_path(path); 1029 } else if (status == CAM_REQ_CMP) 1030 xpt_free_path(path); 1031 else { 1032 printf("cdregister: unable to allocate path\n" 1033 "cdregister: changer support may be " 1034 "broken\n"); 1035 } 1036 1037 softc->changer = nchanger; 1038 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1039 nchanger->num_devices++; 1040 if (camq_resize(&nchanger->devq, 1041 nchanger->num_devices) != CAM_REQ_CMP) { 1042 printf("cdregister: camq_resize " 1043 "failed, changer support may " 1044 "be messed up\n"); 1045 } 1046 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1047 changer_links); 1048 } 1049 } 1050 1051 /* 1052 * Schedule a periodic media polling events. 1053 */ 1054 callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0); 1055 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1056 (softc->flags & CD_FLAG_CHANGER) == 0 && 1057 (cgd->inq_flags & SID_AEN) == 0 && 1058 cd_poll_period != 0) 1059 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1060 cdmediapoll, periph); 1061 1062 cdregisterexit: 1063 1064 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1065 xpt_schedule(periph, CAM_PRIORITY_DEV); 1066 else 1067 cdschedule(periph, CAM_PRIORITY_DEV); 1068 1069 return(CAM_REQ_CMP); 1070 } 1071 1072 static int 1073 cdopen(struct disk *dp) 1074 { 1075 struct cam_periph *periph; 1076 struct cd_softc *softc; 1077 int error; 1078 1079 periph = (struct cam_periph *)dp->d_drv1; 1080 if (periph == NULL) 1081 return (ENXIO); 1082 1083 softc = (struct cd_softc *)periph->softc; 1084 1085 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1086 return(ENXIO); 1087 1088 cam_periph_lock(periph); 1089 1090 if (softc->flags & CD_FLAG_INVALID) { 1091 cam_periph_release_locked(periph); 1092 cam_periph_unlock(periph); 1093 return(ENXIO); 1094 } 1095 1096 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1097 cam_periph_release_locked(periph); 1098 cam_periph_unlock(periph); 1099 return (error); 1100 } 1101 1102 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1103 ("cdopen\n")); 1104 1105 /* 1106 * Check for media, and set the appropriate flags. We don't bail 1107 * if we don't have media, but then we don't allow anything but the 1108 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1109 */ 1110 cdcheckmedia(periph); 1111 1112 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1113 cam_periph_unhold(periph); 1114 1115 cam_periph_unlock(periph); 1116 1117 return (0); 1118 } 1119 1120 static int 1121 cdclose(struct disk *dp) 1122 { 1123 struct cam_periph *periph; 1124 struct cd_softc *softc; 1125 1126 periph = (struct cam_periph *)dp->d_drv1; 1127 if (periph == NULL) 1128 return (ENXIO); 1129 1130 softc = (struct cd_softc *)periph->softc; 1131 1132 cam_periph_lock(periph); 1133 if (cam_periph_hold(periph, PRIBIO) != 0) { 1134 cam_periph_unlock(periph); 1135 cam_periph_release(periph); 1136 return (0); 1137 } 1138 1139 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1140 ("cdclose\n")); 1141 1142 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1143 cdprevent(periph, PR_ALLOW); 1144 1145 /* 1146 * Since we're closing this CD, mark the blocksize as unavailable. 1147 * It will be marked as available when the CD is opened again. 1148 */ 1149 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1150 1151 /* 1152 * We'll check the media and toc again at the next open(). 1153 */ 1154 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1155 1156 cam_periph_unhold(periph); 1157 cam_periph_release_locked(periph); 1158 cam_periph_unlock(periph); 1159 1160 return (0); 1161 } 1162 1163 static void 1164 cdshorttimeout(void *arg) 1165 { 1166 struct cdchanger *changer; 1167 1168 changer = (struct cdchanger *)arg; 1169 1170 /* Always clear the short timeout flag, since that's what we're in */ 1171 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1172 1173 /* 1174 * Check to see if there is any more pending or outstanding I/O for 1175 * this device. If not, move it out of the active slot. 1176 */ 1177 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1178 && (changer->cur_device->outstanding_cmds == 0)) { 1179 changer->flags |= CHANGER_MANUAL_CALL; 1180 cdrunchangerqueue(changer); 1181 } 1182 } 1183 1184 /* 1185 * This is a wrapper for xpt_schedule. It only applies to changers. 1186 */ 1187 static void 1188 cdschedule(struct cam_periph *periph, int priority) 1189 { 1190 struct cd_softc *softc; 1191 1192 softc = (struct cd_softc *)periph->softc; 1193 1194 /* 1195 * If this device isn't currently queued, and if it isn't 1196 * the active device, then we queue this device and run the 1197 * changer queue if there is no timeout scheduled to do it. 1198 * If this device is the active device, just schedule it 1199 * to run again. If this device is queued, there should be 1200 * a timeout in place already that will make sure it runs. 1201 */ 1202 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1203 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1204 /* 1205 * We don't do anything with the priority here. 1206 * This is strictly a fifo queue. 1207 */ 1208 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1209 softc->pinfo.generation = ++softc->changer->devq.generation; 1210 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1211 1212 /* 1213 * Since we just put a device in the changer queue, 1214 * check and see if there is a timeout scheduled for 1215 * this changer. If so, let the timeout handle 1216 * switching this device into the active slot. If 1217 * not, manually call the timeout routine to 1218 * bootstrap things. 1219 */ 1220 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1221 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1222 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1223 softc->changer->flags |= CHANGER_MANUAL_CALL; 1224 cdrunchangerqueue(softc->changer); 1225 } 1226 } else if ((softc->flags & CD_FLAG_ACTIVE) 1227 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1228 xpt_schedule(periph, priority); 1229 } 1230 1231 static void 1232 cdrunchangerqueue(void *arg) 1233 { 1234 struct cd_softc *softc; 1235 struct cdchanger *changer; 1236 int called_from_timeout; 1237 1238 changer = (struct cdchanger *)arg; 1239 1240 /* 1241 * If we have NOT been called from cdstrategy() or cddone(), and 1242 * instead from a timeout routine, go ahead and clear the 1243 * timeout flag. 1244 */ 1245 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1246 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1247 called_from_timeout = 1; 1248 } else 1249 called_from_timeout = 0; 1250 1251 /* Always clear the manual call flag */ 1252 changer->flags &= ~CHANGER_MANUAL_CALL; 1253 1254 /* nothing to do if the queue is empty */ 1255 if (changer->devq.entries <= 0) { 1256 return; 1257 } 1258 1259 /* 1260 * If the changer queue is frozen, that means we have an active 1261 * device. 1262 */ 1263 if (changer->devq.qfrozen_cnt[0] > 0) { 1264 1265 /* 1266 * We always need to reset the frozen count and clear the 1267 * active flag. 1268 */ 1269 changer->devq.qfrozen_cnt[0]--; 1270 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1271 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1272 1273 if (changer->cur_device->outstanding_cmds > 0) { 1274 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1275 changer->cur_device->bufs_left = 1276 changer->cur_device->outstanding_cmds; 1277 if (called_from_timeout) { 1278 callout_reset(&changer->long_handle, 1279 changer_max_busy_seconds * hz, 1280 cdrunchangerqueue, changer); 1281 changer->flags |= CHANGER_TIMEOUT_SCHED; 1282 } 1283 return; 1284 } 1285 1286 /* 1287 * Check to see whether the current device has any I/O left 1288 * to do. If so, requeue it at the end of the queue. If 1289 * not, there is no need to requeue it. 1290 */ 1291 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1292 1293 changer->cur_device->pinfo.generation = 1294 ++changer->devq.generation; 1295 camq_insert(&changer->devq, 1296 (cam_pinfo *)changer->cur_device); 1297 } 1298 } 1299 1300 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1301 1302 changer->cur_device = softc; 1303 1304 changer->devq.qfrozen_cnt[0]++; 1305 softc->flags |= CD_FLAG_ACTIVE; 1306 1307 /* Just in case this device is waiting */ 1308 wakeup(&softc->changer); 1309 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1310 1311 /* 1312 * Get rid of any pending timeouts, and set a flag to schedule new 1313 * ones so this device gets its full time quantum. 1314 */ 1315 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1316 callout_stop(&changer->long_handle); 1317 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1318 } 1319 1320 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1321 callout_stop(&changer->short_handle); 1322 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1323 } 1324 1325 /* 1326 * We need to schedule timeouts, but we only do this after the 1327 * first transaction has completed. This eliminates the changer 1328 * switch time. 1329 */ 1330 changer->flags |= CHANGER_NEED_TIMEOUT; 1331 } 1332 1333 static void 1334 cdchangerschedule(struct cd_softc *softc) 1335 { 1336 struct cdchanger *changer; 1337 1338 changer = softc->changer; 1339 1340 /* 1341 * If this is a changer, and this is the current device, 1342 * and this device has at least the minimum time quantum to 1343 * run, see if we can switch it out. 1344 */ 1345 if ((softc->flags & CD_FLAG_ACTIVE) 1346 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1347 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1348 /* 1349 * We try three things here. The first is that we 1350 * check to see whether the schedule on completion 1351 * flag is set. If it is, we decrement the number 1352 * of buffers left, and if it's zero, we reschedule. 1353 * Next, we check to see whether the pending buffer 1354 * queue is empty and whether there are no 1355 * outstanding transactions. If so, we reschedule. 1356 * Next, we see if the pending buffer queue is empty. 1357 * If it is, we set the number of buffers left to 1358 * the current active buffer count and set the 1359 * schedule on complete flag. 1360 */ 1361 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1362 if (--softc->bufs_left == 0) { 1363 softc->changer->flags |= 1364 CHANGER_MANUAL_CALL; 1365 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1366 cdrunchangerqueue(softc->changer); 1367 } 1368 } else if ((bioq_first(&softc->bio_queue) == NULL) 1369 && (softc->outstanding_cmds == 0)) { 1370 softc->changer->flags |= CHANGER_MANUAL_CALL; 1371 cdrunchangerqueue(softc->changer); 1372 } 1373 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1374 && (softc->flags & CD_FLAG_ACTIVE)) { 1375 1376 /* 1377 * Now that the first transaction to this 1378 * particular device has completed, we can go ahead 1379 * and schedule our timeouts. 1380 */ 1381 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1382 callout_reset(&changer->long_handle, 1383 changer_max_busy_seconds * hz, 1384 cdrunchangerqueue, changer); 1385 changer->flags |= CHANGER_TIMEOUT_SCHED; 1386 } else 1387 printf("cdchangerschedule: already have a long" 1388 " timeout!\n"); 1389 1390 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1391 callout_reset(&changer->short_handle, 1392 changer_min_busy_seconds * hz, 1393 cdshorttimeout, changer); 1394 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1395 } else 1396 printf("cdchangerschedule: already have a short " 1397 "timeout!\n"); 1398 1399 /* 1400 * We just scheduled timeouts, no need to schedule 1401 * more. 1402 */ 1403 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1404 1405 } 1406 } 1407 1408 static int 1409 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1410 u_int32_t cam_flags, 1411 u_int32_t sense_flags), 1412 u_int32_t cam_flags, u_int32_t sense_flags) 1413 { 1414 struct cd_softc *softc; 1415 struct cam_periph *periph; 1416 int error; 1417 1418 periph = xpt_path_periph(ccb->ccb_h.path); 1419 softc = (struct cd_softc *)periph->softc; 1420 1421 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1422 softc->disk->d_devstat); 1423 1424 if (softc->flags & CD_FLAG_CHANGER) 1425 cdchangerschedule(softc); 1426 1427 return(error); 1428 } 1429 1430 static union ccb * 1431 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1432 { 1433 struct cd_softc *softc; 1434 1435 softc = (struct cd_softc *)periph->softc; 1436 1437 if (softc->flags & CD_FLAG_CHANGER) { 1438 /* 1439 * This should work the first time this device is woken up, 1440 * but just in case it doesn't, we use a while loop. 1441 */ 1442 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1443 /* 1444 * If this changer isn't already queued, queue it up. 1445 */ 1446 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1447 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1448 softc->pinfo.generation = 1449 ++softc->changer->devq.generation; 1450 camq_insert(&softc->changer->devq, 1451 (cam_pinfo *)softc); 1452 } 1453 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1454 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1455 && ((softc->changer->flags 1456 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1457 softc->changer->flags |= CHANGER_MANUAL_CALL; 1458 cdrunchangerqueue(softc->changer); 1459 } else 1460 msleep(&softc->changer, periph->sim->mtx, 1461 PRIBIO, "cgticb", 0); 1462 } 1463 } 1464 return(cam_periph_getccb(periph, priority)); 1465 } 1466 1467 1468 /* 1469 * Actually translate the requested transfer into one the physical driver 1470 * can understand. The transfer is described by a buf and will include 1471 * only one physical transfer. 1472 */ 1473 static void 1474 cdstrategy(struct bio *bp) 1475 { 1476 struct cam_periph *periph; 1477 struct cd_softc *softc; 1478 1479 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1480 if (periph == NULL) { 1481 biofinish(bp, NULL, ENXIO); 1482 return; 1483 } 1484 1485 cam_periph_lock(periph); 1486 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1487 ("cdstrategy(%p)\n", bp)); 1488 1489 softc = (struct cd_softc *)periph->softc; 1490 1491 /* 1492 * If the device has been made invalid, error out 1493 */ 1494 if ((softc->flags & CD_FLAG_INVALID)) { 1495 cam_periph_unlock(periph); 1496 biofinish(bp, NULL, ENXIO); 1497 return; 1498 } 1499 1500 /* 1501 * If we don't have valid media, look for it before trying to 1502 * schedule the I/O. 1503 */ 1504 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1505 int error; 1506 1507 error = cdcheckmedia(periph); 1508 if (error != 0) { 1509 cam_periph_unlock(periph); 1510 biofinish(bp, NULL, error); 1511 return; 1512 } 1513 } 1514 1515 /* 1516 * Place it in the queue of disk activities for this disk 1517 */ 1518 bioq_disksort(&softc->bio_queue, bp); 1519 1520 /* 1521 * Schedule ourselves for performing the work. We do things 1522 * differently for changers. 1523 */ 1524 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1525 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1526 else 1527 cdschedule(periph, CAM_PRIORITY_NORMAL); 1528 1529 cam_periph_unlock(periph); 1530 return; 1531 } 1532 1533 static void 1534 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1535 { 1536 struct cd_softc *softc; 1537 struct bio *bp; 1538 struct ccb_scsiio *csio; 1539 struct scsi_read_capacity_data *rcap; 1540 1541 softc = (struct cd_softc *)periph->softc; 1542 1543 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1544 1545 switch (softc->state) { 1546 case CD_STATE_NORMAL: 1547 { 1548 bp = bioq_first(&softc->bio_queue); 1549 if (periph->immediate_priority <= periph->pinfo.priority) { 1550 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1551 1552 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1553 periph_links.sle); 1554 periph->immediate_priority = CAM_PRIORITY_NONE; 1555 wakeup(&periph->ccb_list); 1556 } else if (bp == NULL) { 1557 if (softc->tur) { 1558 softc->tur = 0; 1559 csio = &start_ccb->csio; 1560 scsi_test_unit_ready(csio, 1561 /*retries*/ cd_retry_count, 1562 cddone, 1563 MSG_SIMPLE_Q_TAG, 1564 SSD_FULL_SIZE, 1565 cd_timeout); 1566 start_ccb->ccb_h.ccb_bp = NULL; 1567 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1568 xpt_action(start_ccb); 1569 } else 1570 xpt_release_ccb(start_ccb); 1571 } else { 1572 if (softc->tur) { 1573 softc->tur = 0; 1574 cam_periph_release_locked(periph); 1575 } 1576 bioq_remove(&softc->bio_queue, bp); 1577 1578 scsi_read_write(&start_ccb->csio, 1579 /*retries*/ cd_retry_count, 1580 /* cbfcnp */ cddone, 1581 MSG_SIMPLE_Q_TAG, 1582 /* read */bp->bio_cmd == BIO_READ, 1583 /* byte2 */ 0, 1584 /* minimum_cmd_size */ 10, 1585 /* lba */ bp->bio_offset / 1586 softc->params.blksize, 1587 bp->bio_bcount / softc->params.blksize, 1588 /* data_ptr */ bp->bio_data, 1589 /* dxfer_len */ bp->bio_bcount, 1590 /* sense_len */ cd_retry_count ? 1591 SSD_FULL_SIZE : SF_NO_PRINT, 1592 /* timeout */ cd_timeout); 1593 /* Use READ CD command for audio tracks. */ 1594 if (softc->params.blksize == 2352) { 1595 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1596 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1597 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1598 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1599 start_ccb->csio.cdb_len = 12; 1600 } 1601 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1602 1603 1604 LIST_INSERT_HEAD(&softc->pending_ccbs, 1605 &start_ccb->ccb_h, periph_links.le); 1606 softc->outstanding_cmds++; 1607 1608 /* We expect a unit attention from this device */ 1609 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1610 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1611 softc->flags &= ~CD_FLAG_RETRY_UA; 1612 } 1613 1614 start_ccb->ccb_h.ccb_bp = bp; 1615 bp = bioq_first(&softc->bio_queue); 1616 1617 xpt_action(start_ccb); 1618 } 1619 if (bp != NULL || softc->tur) { 1620 /* Have more work to do, so ensure we stay scheduled */ 1621 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1622 } 1623 break; 1624 } 1625 case CD_STATE_PROBE: 1626 { 1627 1628 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1629 M_SCSICD, M_NOWAIT | M_ZERO); 1630 if (rcap == NULL) { 1631 xpt_print(periph->path, 1632 "cdstart: Couldn't malloc read_capacity data\n"); 1633 /* cd_free_periph??? */ 1634 break; 1635 } 1636 csio = &start_ccb->csio; 1637 scsi_read_capacity(csio, 1638 /*retries*/ cd_retry_count, 1639 cddone, 1640 MSG_SIMPLE_Q_TAG, 1641 rcap, 1642 SSD_FULL_SIZE, 1643 /*timeout*/20000); 1644 start_ccb->ccb_h.ccb_bp = NULL; 1645 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1646 xpt_action(start_ccb); 1647 break; 1648 } 1649 } 1650 } 1651 1652 static void 1653 cddone(struct cam_periph *periph, union ccb *done_ccb) 1654 { 1655 struct cd_softc *softc; 1656 struct ccb_scsiio *csio; 1657 1658 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1659 1660 softc = (struct cd_softc *)periph->softc; 1661 csio = &done_ccb->csio; 1662 1663 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1664 case CD_CCB_BUFFER_IO: 1665 { 1666 struct bio *bp; 1667 int error; 1668 1669 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1670 error = 0; 1671 1672 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1673 int sf; 1674 1675 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1676 sf = SF_RETRY_UA; 1677 else 1678 sf = 0; 1679 1680 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1681 if (error == ERESTART) { 1682 /* 1683 * A retry was scheuled, so 1684 * just return. 1685 */ 1686 return; 1687 } 1688 } 1689 1690 if (error != 0) { 1691 xpt_print(periph->path, 1692 "cddone: got error %#x back\n", error); 1693 bioq_flush(&softc->bio_queue, NULL, EIO); 1694 bp->bio_resid = bp->bio_bcount; 1695 bp->bio_error = error; 1696 bp->bio_flags |= BIO_ERROR; 1697 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1698 cam_release_devq(done_ccb->ccb_h.path, 1699 /*relsim_flags*/0, 1700 /*reduction*/0, 1701 /*timeout*/0, 1702 /*getcount_only*/0); 1703 1704 } else { 1705 bp->bio_resid = csio->resid; 1706 bp->bio_error = 0; 1707 if (bp->bio_resid != 0) { 1708 /* 1709 * Short transfer ??? 1710 * XXX: not sure this is correct for partial 1711 * transfers at EOM 1712 */ 1713 bp->bio_flags |= BIO_ERROR; 1714 } 1715 } 1716 1717 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1718 softc->outstanding_cmds--; 1719 1720 if (softc->flags & CD_FLAG_CHANGER) 1721 cdchangerschedule(softc); 1722 1723 biofinish(bp, NULL, 0); 1724 break; 1725 } 1726 case CD_CCB_PROBE: 1727 { 1728 struct scsi_read_capacity_data *rdcap; 1729 char announce_buf[120]; /* 1730 * Currently (9/30/97) the 1731 * longest possible announce 1732 * buffer is 108 bytes, for the 1733 * first error case below. 1734 * That is 39 bytes for the 1735 * basic string, 16 bytes for the 1736 * biggest sense key (hardware 1737 * error), 52 bytes for the 1738 * text of the largest sense 1739 * qualifier valid for a CDROM, 1740 * (0x72, 0x03 or 0x04, 1741 * 0x03), and one byte for the 1742 * null terminating character. 1743 * To allow for longer strings, 1744 * the announce buffer is 120 1745 * bytes. 1746 */ 1747 struct cd_params *cdp; 1748 1749 cdp = &softc->params; 1750 1751 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1752 1753 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1754 cdp->blksize = scsi_4btoul (rdcap->length); 1755 1756 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1757 1758 snprintf(announce_buf, sizeof(announce_buf), 1759 "cd present [%lu x %lu byte records]", 1760 cdp->disksize, (u_long)cdp->blksize); 1761 1762 } else { 1763 int error; 1764 /* 1765 * Retry any UNIT ATTENTION type errors. They 1766 * are expected at boot. 1767 */ 1768 error = cderror(done_ccb, CAM_RETRY_SELTO, 1769 SF_RETRY_UA | SF_NO_PRINT); 1770 if (error == ERESTART) { 1771 /* 1772 * A retry was scheuled, so 1773 * just return. 1774 */ 1775 return; 1776 } else if (error != 0) { 1777 1778 int asc, ascq; 1779 int sense_key, error_code; 1780 int have_sense; 1781 cam_status status; 1782 struct ccb_getdev cgd; 1783 1784 /* Don't wedge this device's queue */ 1785 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1786 cam_release_devq(done_ccb->ccb_h.path, 1787 /*relsim_flags*/0, 1788 /*reduction*/0, 1789 /*timeout*/0, 1790 /*getcount_only*/0); 1791 1792 status = done_ccb->ccb_h.status; 1793 1794 xpt_setup_ccb(&cgd.ccb_h, 1795 done_ccb->ccb_h.path, 1796 CAM_PRIORITY_NORMAL); 1797 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1798 xpt_action((union ccb *)&cgd); 1799 1800 if (scsi_extract_sense_ccb(done_ccb, 1801 &error_code, &sense_key, &asc, &ascq)) 1802 have_sense = TRUE; 1803 else 1804 have_sense = FALSE; 1805 1806 /* 1807 * Attach to anything that claims to be a 1808 * CDROM or WORM device, as long as it 1809 * doesn't return a "Logical unit not 1810 * supported" (0x25) error. 1811 */ 1812 if ((have_sense) && (asc != 0x25) 1813 && (error_code == SSD_CURRENT_ERROR)) { 1814 const char *sense_key_desc; 1815 const char *asc_desc; 1816 1817 scsi_sense_desc(sense_key, asc, ascq, 1818 &cgd.inq_data, 1819 &sense_key_desc, 1820 &asc_desc); 1821 snprintf(announce_buf, 1822 sizeof(announce_buf), 1823 "Attempt to query device " 1824 "size failed: %s, %s", 1825 sense_key_desc, 1826 asc_desc); 1827 } else if ((have_sense == 0) 1828 && ((status & CAM_STATUS_MASK) == 1829 CAM_SCSI_STATUS_ERROR) 1830 && (csio->scsi_status == 1831 SCSI_STATUS_BUSY)) { 1832 snprintf(announce_buf, 1833 sizeof(announce_buf), 1834 "Attempt to query device " 1835 "size failed: SCSI Status: %s", 1836 scsi_status_string(csio)); 1837 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1838 /* 1839 * We only print out an error for 1840 * CDROM type devices. For WORM 1841 * devices, we don't print out an 1842 * error since a few WORM devices 1843 * don't support CDROM commands. 1844 * If we have sense information, go 1845 * ahead and print it out. 1846 * Otherwise, just say that we 1847 * couldn't attach. 1848 */ 1849 1850 /* 1851 * Just print out the error, not 1852 * the full probe message, when we 1853 * don't attach. 1854 */ 1855 if (have_sense) 1856 scsi_sense_print( 1857 &done_ccb->csio); 1858 else { 1859 xpt_print(periph->path, 1860 "got CAM status %#x\n", 1861 done_ccb->ccb_h.status); 1862 } 1863 xpt_print(periph->path, "fatal error, " 1864 "failed to attach to device\n"); 1865 /* 1866 * Invalidate this peripheral. 1867 */ 1868 cam_periph_invalidate(periph); 1869 1870 announce_buf[0] = '\0'; 1871 } else { 1872 1873 /* 1874 * Invalidate this peripheral. 1875 */ 1876 cam_periph_invalidate(periph); 1877 announce_buf[0] = '\0'; 1878 } 1879 } 1880 } 1881 free(rdcap, M_SCSICD); 1882 if (announce_buf[0] != '\0') { 1883 xpt_announce_periph(periph, announce_buf); 1884 if (softc->flags & CD_FLAG_CHANGER) 1885 cdchangerschedule(softc); 1886 /* 1887 * Create our sysctl variables, now that we know 1888 * we have successfully attached. 1889 */ 1890 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1891 } 1892 softc->state = CD_STATE_NORMAL; 1893 /* 1894 * Since our peripheral may be invalidated by an error 1895 * above or an external event, we must release our CCB 1896 * before releasing the probe lock on the peripheral. 1897 * The peripheral will only go away once the last lock 1898 * is removed, and we need it around for the CCB release 1899 * operation. 1900 */ 1901 xpt_release_ccb(done_ccb); 1902 cam_periph_unhold(periph); 1903 return; 1904 } 1905 case CD_CCB_WAITING: 1906 { 1907 /* Caller will release the CCB */ 1908 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1909 ("trying to wakeup ccbwait\n")); 1910 1911 wakeup(&done_ccb->ccb_h.cbfcnp); 1912 return; 1913 } 1914 case CD_CCB_TUR: 1915 { 1916 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1917 1918 if (cderror(done_ccb, CAM_RETRY_SELTO, 1919 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1920 ERESTART) 1921 return; 1922 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1923 cam_release_devq(done_ccb->ccb_h.path, 1924 /*relsim_flags*/0, 1925 /*reduction*/0, 1926 /*timeout*/0, 1927 /*getcount_only*/0); 1928 } 1929 xpt_release_ccb(done_ccb); 1930 cam_periph_release_locked(periph); 1931 return; 1932 } 1933 default: 1934 break; 1935 } 1936 xpt_release_ccb(done_ccb); 1937 } 1938 1939 static union cd_pages * 1940 cdgetpage(struct cd_mode_params *mode_params) 1941 { 1942 union cd_pages *page; 1943 1944 if (mode_params->cdb_size == 10) 1945 page = (union cd_pages *)find_mode_page_10( 1946 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1947 else 1948 page = (union cd_pages *)find_mode_page_6( 1949 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1950 1951 return (page); 1952 } 1953 1954 static int 1955 cdgetpagesize(int page_num) 1956 { 1957 int i; 1958 1959 for (i = 0; i < (sizeof(cd_page_size_table)/ 1960 sizeof(cd_page_size_table[0])); i++) { 1961 if (cd_page_size_table[i].page == page_num) 1962 return (cd_page_size_table[i].page_size); 1963 } 1964 1965 return (-1); 1966 } 1967 1968 static int 1969 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1970 { 1971 1972 struct cam_periph *periph; 1973 struct cd_softc *softc; 1974 int nocopyout, error = 0; 1975 1976 periph = (struct cam_periph *)dp->d_drv1; 1977 if (periph == NULL) 1978 return(ENXIO); 1979 1980 cam_periph_lock(periph); 1981 1982 softc = (struct cd_softc *)periph->softc; 1983 1984 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1985 ("cdioctl(%#lx)\n", cmd)); 1986 1987 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1988 cam_periph_unlock(periph); 1989 cam_periph_release(periph); 1990 return (error); 1991 } 1992 1993 /* 1994 * If we don't have media loaded, check for it. If still don't 1995 * have media loaded, we can only do a load or eject. 1996 * 1997 * We only care whether media is loaded if this is a cd-specific ioctl 1998 * (thus the IOCGROUP check below). Note that this will break if 1999 * anyone adds any ioctls into the switch statement below that don't 2000 * have their ioctl group set to 'c'. 2001 */ 2002 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 2003 && ((cmd != CDIOCCLOSE) 2004 && (cmd != CDIOCEJECT)) 2005 && (IOCGROUP(cmd) == 'c')) { 2006 error = cdcheckmedia(periph); 2007 if (error != 0) { 2008 cam_periph_unhold(periph); 2009 cam_periph_unlock(periph); 2010 return (error); 2011 } 2012 } 2013 /* 2014 * Drop the lock here so later mallocs can use WAITOK. The periph 2015 * is essentially locked still with the cam_periph_hold call above. 2016 */ 2017 cam_periph_unlock(periph); 2018 2019 nocopyout = 0; 2020 switch (cmd) { 2021 2022 case CDIOCPLAYTRACKS: 2023 { 2024 struct ioc_play_track *args 2025 = (struct ioc_play_track *) addr; 2026 struct cd_mode_params params; 2027 union cd_pages *page; 2028 2029 params.alloc_len = sizeof(union cd_mode_data_6_10); 2030 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2031 M_WAITOK | M_ZERO); 2032 2033 cam_periph_lock(periph); 2034 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2035 ("trying to do CDIOCPLAYTRACKS\n")); 2036 2037 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2038 if (error) { 2039 free(params.mode_buf, M_SCSICD); 2040 cam_periph_unlock(periph); 2041 break; 2042 } 2043 page = cdgetpage(¶ms); 2044 2045 page->audio.flags &= ~CD_PA_SOTC; 2046 page->audio.flags |= CD_PA_IMMED; 2047 error = cdsetmode(periph, ¶ms); 2048 free(params.mode_buf, M_SCSICD); 2049 if (error) { 2050 cam_periph_unlock(periph); 2051 break; 2052 } 2053 2054 /* 2055 * This was originally implemented with the PLAY 2056 * AUDIO TRACK INDEX command, but that command was 2057 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2058 * drives support it but ATAPI and ATAPI-derivative 2059 * drives don't seem to support it. So we keep a 2060 * cache of the table of contents and translate 2061 * track numbers to MSF format. 2062 */ 2063 if (softc->flags & CD_FLAG_VALID_TOC) { 2064 union msf_lba *sentry, *eentry; 2065 int st, et; 2066 2067 if (args->end_track < 2068 softc->toc.header.ending_track + 1) 2069 args->end_track++; 2070 if (args->end_track > 2071 softc->toc.header.ending_track + 1) 2072 args->end_track = 2073 softc->toc.header.ending_track + 1; 2074 st = args->start_track - 2075 softc->toc.header.starting_track; 2076 et = args->end_track - 2077 softc->toc.header.starting_track; 2078 if ((st < 0) 2079 || (et < 0) 2080 || (st > (softc->toc.header.ending_track - 2081 softc->toc.header.starting_track))) { 2082 error = EINVAL; 2083 break; 2084 } 2085 sentry = &softc->toc.entries[st].addr; 2086 eentry = &softc->toc.entries[et].addr; 2087 error = cdplaymsf(periph, 2088 sentry->msf.minute, 2089 sentry->msf.second, 2090 sentry->msf.frame, 2091 eentry->msf.minute, 2092 eentry->msf.second, 2093 eentry->msf.frame); 2094 } else { 2095 /* 2096 * If we don't have a valid TOC, try the 2097 * play track index command. It is part of 2098 * the SCSI-2 spec, but was removed in the 2099 * MMC specs. ATAPI and ATAPI-derived 2100 * drives don't support it. 2101 */ 2102 if (softc->quirks & CD_Q_BCD_TRACKS) { 2103 args->start_track = 2104 bin2bcd(args->start_track); 2105 args->end_track = 2106 bin2bcd(args->end_track); 2107 } 2108 error = cdplaytracks(periph, 2109 args->start_track, 2110 args->start_index, 2111 args->end_track, 2112 args->end_index); 2113 } 2114 cam_periph_unlock(periph); 2115 } 2116 break; 2117 case CDIOCPLAYMSF: 2118 { 2119 struct ioc_play_msf *args 2120 = (struct ioc_play_msf *) addr; 2121 struct cd_mode_params params; 2122 union cd_pages *page; 2123 2124 params.alloc_len = sizeof(union cd_mode_data_6_10); 2125 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2126 M_WAITOK | M_ZERO); 2127 2128 cam_periph_lock(periph); 2129 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2130 ("trying to do CDIOCPLAYMSF\n")); 2131 2132 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2133 if (error) { 2134 free(params.mode_buf, M_SCSICD); 2135 cam_periph_unlock(periph); 2136 break; 2137 } 2138 page = cdgetpage(¶ms); 2139 2140 page->audio.flags &= ~CD_PA_SOTC; 2141 page->audio.flags |= CD_PA_IMMED; 2142 error = cdsetmode(periph, ¶ms); 2143 free(params.mode_buf, M_SCSICD); 2144 if (error) { 2145 cam_periph_unlock(periph); 2146 break; 2147 } 2148 error = cdplaymsf(periph, 2149 args->start_m, 2150 args->start_s, 2151 args->start_f, 2152 args->end_m, 2153 args->end_s, 2154 args->end_f); 2155 cam_periph_unlock(periph); 2156 } 2157 break; 2158 case CDIOCPLAYBLOCKS: 2159 { 2160 struct ioc_play_blocks *args 2161 = (struct ioc_play_blocks *) addr; 2162 struct cd_mode_params params; 2163 union cd_pages *page; 2164 2165 params.alloc_len = sizeof(union cd_mode_data_6_10); 2166 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2167 M_WAITOK | M_ZERO); 2168 2169 cam_periph_lock(periph); 2170 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2171 ("trying to do CDIOCPLAYBLOCKS\n")); 2172 2173 2174 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2175 if (error) { 2176 free(params.mode_buf, M_SCSICD); 2177 cam_periph_unlock(periph); 2178 break; 2179 } 2180 page = cdgetpage(¶ms); 2181 2182 page->audio.flags &= ~CD_PA_SOTC; 2183 page->audio.flags |= CD_PA_IMMED; 2184 error = cdsetmode(periph, ¶ms); 2185 free(params.mode_buf, M_SCSICD); 2186 if (error) { 2187 cam_periph_unlock(periph); 2188 break; 2189 } 2190 error = cdplay(periph, args->blk, args->len); 2191 cam_periph_unlock(periph); 2192 } 2193 break; 2194 case CDIOCREADSUBCHANNEL_SYSSPACE: 2195 nocopyout = 1; 2196 /* Fallthrough */ 2197 case CDIOCREADSUBCHANNEL: 2198 { 2199 struct ioc_read_subchannel *args 2200 = (struct ioc_read_subchannel *) addr; 2201 struct cd_sub_channel_info *data; 2202 u_int32_t len = args->data_len; 2203 2204 data = malloc(sizeof(struct cd_sub_channel_info), 2205 M_SCSICD, M_WAITOK | M_ZERO); 2206 2207 cam_periph_lock(periph); 2208 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2209 ("trying to do CDIOCREADSUBCHANNEL\n")); 2210 2211 if ((len > sizeof(struct cd_sub_channel_info)) || 2212 (len < sizeof(struct cd_sub_channel_header))) { 2213 printf( 2214 "scsi_cd: cdioctl: " 2215 "cdioreadsubchannel: error, len=%d\n", 2216 len); 2217 error = EINVAL; 2218 free(data, M_SCSICD); 2219 cam_periph_unlock(periph); 2220 break; 2221 } 2222 2223 if (softc->quirks & CD_Q_BCD_TRACKS) 2224 args->track = bin2bcd(args->track); 2225 2226 error = cdreadsubchannel(periph, args->address_format, 2227 args->data_format, args->track, data, len); 2228 2229 if (error) { 2230 free(data, M_SCSICD); 2231 cam_periph_unlock(periph); 2232 break; 2233 } 2234 if (softc->quirks & CD_Q_BCD_TRACKS) 2235 data->what.track_info.track_number = 2236 bcd2bin(data->what.track_info.track_number); 2237 len = min(len, ((data->header.data_len[0] << 8) + 2238 data->header.data_len[1] + 2239 sizeof(struct cd_sub_channel_header))); 2240 cam_periph_unlock(periph); 2241 if (nocopyout == 0) { 2242 if (copyout(data, args->data, len) != 0) { 2243 error = EFAULT; 2244 } 2245 } else { 2246 bcopy(data, args->data, len); 2247 } 2248 free(data, M_SCSICD); 2249 } 2250 break; 2251 2252 case CDIOREADTOCHEADER: 2253 { 2254 struct ioc_toc_header *th; 2255 2256 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2257 M_WAITOK | M_ZERO); 2258 2259 cam_periph_lock(periph); 2260 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2261 ("trying to do CDIOREADTOCHEADER\n")); 2262 2263 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2264 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2265 if (error) { 2266 free(th, M_SCSICD); 2267 cam_periph_unlock(periph); 2268 break; 2269 } 2270 if (softc->quirks & CD_Q_BCD_TRACKS) { 2271 /* we are going to have to convert the BCD 2272 * encoding on the cd to what is expected 2273 */ 2274 th->starting_track = 2275 bcd2bin(th->starting_track); 2276 th->ending_track = bcd2bin(th->ending_track); 2277 } 2278 th->len = ntohs(th->len); 2279 bcopy(th, addr, sizeof(*th)); 2280 free(th, M_SCSICD); 2281 cam_periph_unlock(periph); 2282 } 2283 break; 2284 case CDIOREADTOCENTRYS: 2285 { 2286 struct cd_tocdata *data; 2287 struct cd_toc_single *lead; 2288 struct ioc_read_toc_entry *te = 2289 (struct ioc_read_toc_entry *) addr; 2290 struct ioc_toc_header *th; 2291 u_int32_t len, readlen, idx, num; 2292 u_int32_t starting_track = te->starting_track; 2293 2294 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2295 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2296 2297 cam_periph_lock(periph); 2298 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2299 ("trying to do CDIOREADTOCENTRYS\n")); 2300 2301 if (te->data_len < sizeof(struct cd_toc_entry) 2302 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2303 || (te->address_format != CD_MSF_FORMAT 2304 && te->address_format != CD_LBA_FORMAT)) { 2305 error = EINVAL; 2306 printf("scsi_cd: error in readtocentries, " 2307 "returning EINVAL\n"); 2308 free(data, M_SCSICD); 2309 free(lead, M_SCSICD); 2310 cam_periph_unlock(periph); 2311 break; 2312 } 2313 2314 th = &data->header; 2315 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2316 sizeof (*th), /*sense_flags*/0); 2317 if (error) { 2318 free(data, M_SCSICD); 2319 free(lead, M_SCSICD); 2320 cam_periph_unlock(periph); 2321 break; 2322 } 2323 2324 if (softc->quirks & CD_Q_BCD_TRACKS) { 2325 /* we are going to have to convert the BCD 2326 * encoding on the cd to what is expected 2327 */ 2328 th->starting_track = 2329 bcd2bin(th->starting_track); 2330 th->ending_track = bcd2bin(th->ending_track); 2331 } 2332 2333 if (starting_track == 0) 2334 starting_track = th->starting_track; 2335 else if (starting_track == LEADOUT) 2336 starting_track = th->ending_track + 1; 2337 else if (starting_track < th->starting_track || 2338 starting_track > th->ending_track + 1) { 2339 printf("scsi_cd: error in readtocentries, " 2340 "returning EINVAL\n"); 2341 free(data, M_SCSICD); 2342 free(lead, M_SCSICD); 2343 cam_periph_unlock(periph); 2344 error = EINVAL; 2345 break; 2346 } 2347 2348 /* calculate reading length without leadout entry */ 2349 readlen = (th->ending_track - starting_track + 1) * 2350 sizeof(struct cd_toc_entry); 2351 2352 /* and with leadout entry */ 2353 len = readlen + sizeof(struct cd_toc_entry); 2354 if (te->data_len < len) { 2355 len = te->data_len; 2356 if (readlen > len) 2357 readlen = len; 2358 } 2359 if (len > sizeof(data->entries)) { 2360 printf("scsi_cd: error in readtocentries, " 2361 "returning EINVAL\n"); 2362 error = EINVAL; 2363 free(data, M_SCSICD); 2364 free(lead, M_SCSICD); 2365 cam_periph_unlock(periph); 2366 break; 2367 } 2368 num = len / sizeof(struct cd_toc_entry); 2369 2370 if (readlen > 0) { 2371 error = cdreadtoc(periph, te->address_format, 2372 starting_track, 2373 (u_int8_t *)data, 2374 readlen + sizeof (*th), 2375 /*sense_flags*/0); 2376 if (error) { 2377 free(data, M_SCSICD); 2378 free(lead, M_SCSICD); 2379 cam_periph_unlock(periph); 2380 break; 2381 } 2382 } 2383 2384 /* make leadout entry if needed */ 2385 idx = starting_track + num - 1; 2386 if (softc->quirks & CD_Q_BCD_TRACKS) 2387 th->ending_track = bcd2bin(th->ending_track); 2388 if (idx == th->ending_track + 1) { 2389 error = cdreadtoc(periph, te->address_format, 2390 LEADOUT, (u_int8_t *)lead, 2391 sizeof(*lead), 2392 /*sense_flags*/0); 2393 if (error) { 2394 free(data, M_SCSICD); 2395 free(lead, M_SCSICD); 2396 cam_periph_unlock(periph); 2397 break; 2398 } 2399 data->entries[idx - starting_track] = 2400 lead->entry; 2401 } 2402 if (softc->quirks & CD_Q_BCD_TRACKS) { 2403 for (idx = 0; idx < num - 1; idx++) { 2404 data->entries[idx].track = 2405 bcd2bin(data->entries[idx].track); 2406 } 2407 } 2408 2409 cam_periph_unlock(periph); 2410 error = copyout(data->entries, te->data, len); 2411 free(data, M_SCSICD); 2412 free(lead, M_SCSICD); 2413 } 2414 break; 2415 case CDIOREADTOCENTRY: 2416 { 2417 struct cd_toc_single *data; 2418 struct ioc_read_toc_single_entry *te = 2419 (struct ioc_read_toc_single_entry *) addr; 2420 struct ioc_toc_header *th; 2421 u_int32_t track; 2422 2423 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2424 2425 cam_periph_lock(periph); 2426 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2427 ("trying to do CDIOREADTOCENTRY\n")); 2428 2429 if (te->address_format != CD_MSF_FORMAT 2430 && te->address_format != CD_LBA_FORMAT) { 2431 printf("error in readtocentry, " 2432 " returning EINVAL\n"); 2433 free(data, M_SCSICD); 2434 error = EINVAL; 2435 cam_periph_unlock(periph); 2436 break; 2437 } 2438 2439 th = &data->header; 2440 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2441 sizeof (*th), /*sense_flags*/0); 2442 if (error) { 2443 free(data, M_SCSICD); 2444 cam_periph_unlock(periph); 2445 break; 2446 } 2447 2448 if (softc->quirks & CD_Q_BCD_TRACKS) { 2449 /* we are going to have to convert the BCD 2450 * encoding on the cd to what is expected 2451 */ 2452 th->starting_track = 2453 bcd2bin(th->starting_track); 2454 th->ending_track = bcd2bin(th->ending_track); 2455 } 2456 track = te->track; 2457 if (track == 0) 2458 track = th->starting_track; 2459 else if (track == LEADOUT) 2460 /* OK */; 2461 else if (track < th->starting_track || 2462 track > th->ending_track + 1) { 2463 printf("error in readtocentry, " 2464 " returning EINVAL\n"); 2465 free(data, M_SCSICD); 2466 error = EINVAL; 2467 cam_periph_unlock(periph); 2468 break; 2469 } 2470 2471 error = cdreadtoc(periph, te->address_format, track, 2472 (u_int8_t *)data, sizeof(*data), 2473 /*sense_flags*/0); 2474 if (error) { 2475 free(data, M_SCSICD); 2476 cam_periph_unlock(periph); 2477 break; 2478 } 2479 2480 if (softc->quirks & CD_Q_BCD_TRACKS) 2481 data->entry.track = bcd2bin(data->entry.track); 2482 bcopy(&data->entry, &te->entry, 2483 sizeof(struct cd_toc_entry)); 2484 free(data, M_SCSICD); 2485 cam_periph_unlock(periph); 2486 } 2487 break; 2488 case CDIOCSETPATCH: 2489 { 2490 struct ioc_patch *arg = (struct ioc_patch *)addr; 2491 struct cd_mode_params params; 2492 union cd_pages *page; 2493 2494 params.alloc_len = sizeof(union cd_mode_data_6_10); 2495 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2496 M_WAITOK | M_ZERO); 2497 2498 cam_periph_lock(periph); 2499 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2500 ("trying to do CDIOCSETPATCH\n")); 2501 2502 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2503 if (error) { 2504 free(params.mode_buf, M_SCSICD); 2505 cam_periph_unlock(periph); 2506 break; 2507 } 2508 page = cdgetpage(¶ms); 2509 2510 page->audio.port[LEFT_PORT].channels = 2511 arg->patch[0]; 2512 page->audio.port[RIGHT_PORT].channels = 2513 arg->patch[1]; 2514 page->audio.port[2].channels = arg->patch[2]; 2515 page->audio.port[3].channels = arg->patch[3]; 2516 error = cdsetmode(periph, ¶ms); 2517 free(params.mode_buf, M_SCSICD); 2518 cam_periph_unlock(periph); 2519 } 2520 break; 2521 case CDIOCGETVOL: 2522 { 2523 struct ioc_vol *arg = (struct ioc_vol *) addr; 2524 struct cd_mode_params params; 2525 union cd_pages *page; 2526 2527 params.alloc_len = sizeof(union cd_mode_data_6_10); 2528 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2529 M_WAITOK | M_ZERO); 2530 2531 cam_periph_lock(periph); 2532 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2533 ("trying to do CDIOCGETVOL\n")); 2534 2535 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2536 if (error) { 2537 free(params.mode_buf, M_SCSICD); 2538 cam_periph_unlock(periph); 2539 break; 2540 } 2541 page = cdgetpage(¶ms); 2542 2543 arg->vol[LEFT_PORT] = 2544 page->audio.port[LEFT_PORT].volume; 2545 arg->vol[RIGHT_PORT] = 2546 page->audio.port[RIGHT_PORT].volume; 2547 arg->vol[2] = page->audio.port[2].volume; 2548 arg->vol[3] = page->audio.port[3].volume; 2549 free(params.mode_buf, M_SCSICD); 2550 cam_periph_unlock(periph); 2551 } 2552 break; 2553 case CDIOCSETVOL: 2554 { 2555 struct ioc_vol *arg = (struct ioc_vol *) addr; 2556 struct cd_mode_params params; 2557 union cd_pages *page; 2558 2559 params.alloc_len = sizeof(union cd_mode_data_6_10); 2560 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2561 M_WAITOK | M_ZERO); 2562 2563 cam_periph_lock(periph); 2564 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2565 ("trying to do CDIOCSETVOL\n")); 2566 2567 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2568 if (error) { 2569 free(params.mode_buf, M_SCSICD); 2570 cam_periph_unlock(periph); 2571 break; 2572 } 2573 page = cdgetpage(¶ms); 2574 2575 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2576 page->audio.port[LEFT_PORT].volume = 2577 arg->vol[LEFT_PORT]; 2578 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2579 page->audio.port[RIGHT_PORT].volume = 2580 arg->vol[RIGHT_PORT]; 2581 page->audio.port[2].volume = arg->vol[2]; 2582 page->audio.port[3].volume = arg->vol[3]; 2583 error = cdsetmode(periph, ¶ms); 2584 cam_periph_unlock(periph); 2585 free(params.mode_buf, M_SCSICD); 2586 } 2587 break; 2588 case CDIOCSETMONO: 2589 { 2590 struct cd_mode_params params; 2591 union cd_pages *page; 2592 2593 params.alloc_len = sizeof(union cd_mode_data_6_10); 2594 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2595 M_WAITOK | M_ZERO); 2596 2597 cam_periph_lock(periph); 2598 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2599 ("trying to do CDIOCSETMONO\n")); 2600 2601 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2602 if (error) { 2603 free(params.mode_buf, M_SCSICD); 2604 cam_periph_unlock(periph); 2605 break; 2606 } 2607 page = cdgetpage(¶ms); 2608 2609 page->audio.port[LEFT_PORT].channels = 2610 LEFT_CHANNEL | RIGHT_CHANNEL; 2611 page->audio.port[RIGHT_PORT].channels = 2612 LEFT_CHANNEL | RIGHT_CHANNEL; 2613 page->audio.port[2].channels = 0; 2614 page->audio.port[3].channels = 0; 2615 error = cdsetmode(periph, ¶ms); 2616 cam_periph_unlock(periph); 2617 free(params.mode_buf, M_SCSICD); 2618 } 2619 break; 2620 case CDIOCSETSTEREO: 2621 { 2622 struct cd_mode_params params; 2623 union cd_pages *page; 2624 2625 params.alloc_len = sizeof(union cd_mode_data_6_10); 2626 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2627 M_WAITOK | M_ZERO); 2628 2629 cam_periph_lock(periph); 2630 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2631 ("trying to do CDIOCSETSTEREO\n")); 2632 2633 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2634 if (error) { 2635 free(params.mode_buf, M_SCSICD); 2636 cam_periph_unlock(periph); 2637 break; 2638 } 2639 page = cdgetpage(¶ms); 2640 2641 page->audio.port[LEFT_PORT].channels = 2642 LEFT_CHANNEL; 2643 page->audio.port[RIGHT_PORT].channels = 2644 RIGHT_CHANNEL; 2645 page->audio.port[2].channels = 0; 2646 page->audio.port[3].channels = 0; 2647 error = cdsetmode(periph, ¶ms); 2648 free(params.mode_buf, M_SCSICD); 2649 cam_periph_unlock(periph); 2650 } 2651 break; 2652 case CDIOCSETMUTE: 2653 { 2654 struct cd_mode_params params; 2655 union cd_pages *page; 2656 2657 params.alloc_len = sizeof(union cd_mode_data_6_10); 2658 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2659 M_WAITOK | M_ZERO); 2660 2661 cam_periph_lock(periph); 2662 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2663 ("trying to do CDIOCSETMUTE\n")); 2664 2665 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2666 if (error) { 2667 free(params.mode_buf, M_SCSICD); 2668 cam_periph_unlock(periph); 2669 break; 2670 } 2671 page = cdgetpage(¶ms); 2672 2673 page->audio.port[LEFT_PORT].channels = 0; 2674 page->audio.port[RIGHT_PORT].channels = 0; 2675 page->audio.port[2].channels = 0; 2676 page->audio.port[3].channels = 0; 2677 error = cdsetmode(periph, ¶ms); 2678 free(params.mode_buf, M_SCSICD); 2679 cam_periph_unlock(periph); 2680 } 2681 break; 2682 case CDIOCSETLEFT: 2683 { 2684 struct cd_mode_params params; 2685 union cd_pages *page; 2686 2687 params.alloc_len = sizeof(union cd_mode_data_6_10); 2688 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2689 M_WAITOK | M_ZERO); 2690 2691 cam_periph_lock(periph); 2692 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2693 ("trying to do CDIOCSETLEFT\n")); 2694 2695 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2696 if (error) { 2697 free(params.mode_buf, M_SCSICD); 2698 cam_periph_unlock(periph); 2699 break; 2700 } 2701 page = cdgetpage(¶ms); 2702 2703 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2704 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2705 page->audio.port[2].channels = 0; 2706 page->audio.port[3].channels = 0; 2707 error = cdsetmode(periph, ¶ms); 2708 free(params.mode_buf, M_SCSICD); 2709 cam_periph_unlock(periph); 2710 } 2711 break; 2712 case CDIOCSETRIGHT: 2713 { 2714 struct cd_mode_params params; 2715 union cd_pages *page; 2716 2717 params.alloc_len = sizeof(union cd_mode_data_6_10); 2718 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2719 M_WAITOK | M_ZERO); 2720 2721 cam_periph_lock(periph); 2722 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2723 ("trying to do CDIOCSETRIGHT\n")); 2724 2725 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2726 if (error) { 2727 free(params.mode_buf, M_SCSICD); 2728 cam_periph_unlock(periph); 2729 break; 2730 } 2731 page = cdgetpage(¶ms); 2732 2733 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2734 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2735 page->audio.port[2].channels = 0; 2736 page->audio.port[3].channels = 0; 2737 error = cdsetmode(periph, ¶ms); 2738 free(params.mode_buf, M_SCSICD); 2739 cam_periph_unlock(periph); 2740 } 2741 break; 2742 case CDIOCRESUME: 2743 cam_periph_lock(periph); 2744 error = cdpause(periph, 1); 2745 cam_periph_unlock(periph); 2746 break; 2747 case CDIOCPAUSE: 2748 cam_periph_lock(periph); 2749 error = cdpause(periph, 0); 2750 cam_periph_unlock(periph); 2751 break; 2752 case CDIOCSTART: 2753 cam_periph_lock(periph); 2754 error = cdstartunit(periph, 0); 2755 cam_periph_unlock(periph); 2756 break; 2757 case CDIOCCLOSE: 2758 cam_periph_lock(periph); 2759 error = cdstartunit(periph, 1); 2760 cam_periph_unlock(periph); 2761 break; 2762 case CDIOCSTOP: 2763 cam_periph_lock(periph); 2764 error = cdstopunit(periph, 0); 2765 cam_periph_unlock(periph); 2766 break; 2767 case CDIOCEJECT: 2768 cam_periph_lock(periph); 2769 error = cdstopunit(periph, 1); 2770 cam_periph_unlock(periph); 2771 break; 2772 case CDIOCALLOW: 2773 cam_periph_lock(periph); 2774 cdprevent(periph, PR_ALLOW); 2775 cam_periph_unlock(periph); 2776 break; 2777 case CDIOCPREVENT: 2778 cam_periph_lock(periph); 2779 cdprevent(periph, PR_PREVENT); 2780 cam_periph_unlock(periph); 2781 break; 2782 case CDIOCSETDEBUG: 2783 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2784 error = ENOTTY; 2785 break; 2786 case CDIOCCLRDEBUG: 2787 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2788 error = ENOTTY; 2789 break; 2790 case CDIOCRESET: 2791 /* return (cd_reset(periph)); */ 2792 error = ENOTTY; 2793 break; 2794 case CDRIOCREADSPEED: 2795 cam_periph_lock(periph); 2796 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2797 cam_periph_unlock(periph); 2798 break; 2799 case CDRIOCWRITESPEED: 2800 cam_periph_lock(periph); 2801 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2802 cam_periph_unlock(periph); 2803 break; 2804 case CDRIOCGETBLOCKSIZE: 2805 *(int *)addr = softc->params.blksize; 2806 break; 2807 case CDRIOCSETBLOCKSIZE: 2808 if (*(int *)addr <= 0) { 2809 error = EINVAL; 2810 break; 2811 } 2812 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2813 break; 2814 case DVDIOCSENDKEY: 2815 case DVDIOCREPORTKEY: { 2816 struct dvd_authinfo *authinfo; 2817 2818 authinfo = (struct dvd_authinfo *)addr; 2819 2820 if (cmd == DVDIOCREPORTKEY) 2821 error = cdreportkey(periph, authinfo); 2822 else 2823 error = cdsendkey(periph, authinfo); 2824 break; 2825 } 2826 case DVDIOCREADSTRUCTURE: { 2827 struct dvd_struct *dvdstruct; 2828 2829 dvdstruct = (struct dvd_struct *)addr; 2830 2831 error = cdreaddvdstructure(periph, dvdstruct); 2832 2833 break; 2834 } 2835 default: 2836 cam_periph_lock(periph); 2837 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2838 cam_periph_unlock(periph); 2839 break; 2840 } 2841 2842 cam_periph_lock(periph); 2843 cam_periph_unhold(periph); 2844 2845 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2846 if (error && bootverbose) { 2847 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2848 } 2849 cam_periph_unlock(periph); 2850 2851 return (error); 2852 } 2853 2854 static void 2855 cdprevent(struct cam_periph *periph, int action) 2856 { 2857 union ccb *ccb; 2858 struct cd_softc *softc; 2859 int error; 2860 2861 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2862 2863 softc = (struct cd_softc *)periph->softc; 2864 2865 if (((action == PR_ALLOW) 2866 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2867 || ((action == PR_PREVENT) 2868 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2869 return; 2870 } 2871 2872 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2873 2874 scsi_prevent(&ccb->csio, 2875 /*retries*/ cd_retry_count, 2876 cddone, 2877 MSG_SIMPLE_Q_TAG, 2878 action, 2879 SSD_FULL_SIZE, 2880 /* timeout */60000); 2881 2882 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2883 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2884 2885 xpt_release_ccb(ccb); 2886 2887 if (error == 0) { 2888 if (action == PR_ALLOW) 2889 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2890 else 2891 softc->flags |= CD_FLAG_DISC_LOCKED; 2892 } 2893 } 2894 2895 /* 2896 * XXX: the disk media and sector size is only really able to change 2897 * XXX: while the device is closed. 2898 */ 2899 static int 2900 cdcheckmedia(struct cam_periph *periph) 2901 { 2902 struct cd_softc *softc; 2903 struct ioc_toc_header *toch; 2904 struct cd_toc_single leadout; 2905 u_int32_t size, toclen; 2906 int error, num_entries, cdindex; 2907 2908 softc = (struct cd_softc *)periph->softc; 2909 2910 cdprevent(periph, PR_PREVENT); 2911 softc->disk->d_sectorsize = 2048; 2912 softc->disk->d_mediasize = 0; 2913 2914 /* 2915 * Get the disc size and block size. If we can't get it, we don't 2916 * have media, most likely. 2917 */ 2918 if ((error = cdsize(periph, &size)) != 0) { 2919 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2920 cdprevent(periph, PR_ALLOW); 2921 return (error); 2922 } else { 2923 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2924 softc->disk->d_sectorsize = softc->params.blksize; 2925 softc->disk->d_mediasize = 2926 (off_t)softc->params.blksize * softc->params.disksize; 2927 } 2928 2929 /* 2930 * Now we check the table of contents. This (currently) is only 2931 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2932 * things like present a separate entry in /dev for each track, 2933 * like that acd(4) driver does. 2934 */ 2935 bzero(&softc->toc, sizeof(softc->toc)); 2936 toch = &softc->toc.header; 2937 /* 2938 * We will get errors here for media that doesn't have a table of 2939 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2940 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2941 * has not been recorded (no complete session) and the Format codes 2942 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2943 * with an INVALID FIELD IN CDB. Devices that are not capable of 2944 * reading an incomplete session on DDC/CD-R/RW media shall report 2945 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2946 * 2947 * So this isn't fatal if we can't read the table of contents, it 2948 * just means that the user won't be able to issue the play tracks 2949 * ioctl, and likely lots of other stuff won't work either. They 2950 * need to burn the CD before we can do a whole lot with it. So 2951 * we don't print anything here if we get an error back. 2952 */ 2953 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2954 SF_NO_PRINT); 2955 /* 2956 * Errors in reading the table of contents aren't fatal, we just 2957 * won't have a valid table of contents cached. 2958 */ 2959 if (error != 0) { 2960 error = 0; 2961 bzero(&softc->toc, sizeof(softc->toc)); 2962 goto bailout; 2963 } 2964 2965 if (softc->quirks & CD_Q_BCD_TRACKS) { 2966 toch->starting_track = bcd2bin(toch->starting_track); 2967 toch->ending_track = bcd2bin(toch->ending_track); 2968 } 2969 2970 /* Number of TOC entries, plus leadout */ 2971 num_entries = (toch->ending_track - toch->starting_track) + 2; 2972 2973 if (num_entries <= 0) 2974 goto bailout; 2975 2976 toclen = num_entries * sizeof(struct cd_toc_entry); 2977 2978 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2979 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2980 SF_NO_PRINT); 2981 if (error != 0) { 2982 error = 0; 2983 bzero(&softc->toc, sizeof(softc->toc)); 2984 goto bailout; 2985 } 2986 2987 if (softc->quirks & CD_Q_BCD_TRACKS) { 2988 toch->starting_track = bcd2bin(toch->starting_track); 2989 toch->ending_track = bcd2bin(toch->ending_track); 2990 } 2991 /* 2992 * XXX KDM is this necessary? Probably only if the drive doesn't 2993 * return leadout information with the table of contents. 2994 */ 2995 cdindex = toch->starting_track + num_entries -1; 2996 if (cdindex == toch->ending_track + 1) { 2997 2998 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2999 (u_int8_t *)&leadout, sizeof(leadout), 3000 SF_NO_PRINT); 3001 if (error != 0) { 3002 error = 0; 3003 goto bailout; 3004 } 3005 softc->toc.entries[cdindex - toch->starting_track] = 3006 leadout.entry; 3007 } 3008 if (softc->quirks & CD_Q_BCD_TRACKS) { 3009 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3010 softc->toc.entries[cdindex].track = 3011 bcd2bin(softc->toc.entries[cdindex].track); 3012 } 3013 } 3014 3015 softc->flags |= CD_FLAG_VALID_TOC; 3016 3017 /* If the first track is audio, correct sector size. */ 3018 if ((softc->toc.entries[0].control & 4) == 0) { 3019 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3020 softc->disk->d_mediasize = 3021 (off_t)softc->params.blksize * softc->params.disksize; 3022 } 3023 3024 bailout: 3025 3026 /* 3027 * We unconditionally (re)set the blocksize each time the 3028 * CD device is opened. This is because the CD can change, 3029 * and therefore the blocksize might change. 3030 * XXX problems here if some slice or partition is still 3031 * open with the old size? 3032 */ 3033 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3034 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3035 softc->disk->d_devstat->block_size = softc->params.blksize; 3036 3037 return (error); 3038 } 3039 3040 static int 3041 cdsize(struct cam_periph *periph, u_int32_t *size) 3042 { 3043 struct cd_softc *softc; 3044 union ccb *ccb; 3045 struct scsi_read_capacity_data *rcap_buf; 3046 int error; 3047 3048 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3049 3050 softc = (struct cd_softc *)periph->softc; 3051 3052 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3053 3054 /* XXX Should be M_WAITOK */ 3055 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3056 M_SCSICD, M_NOWAIT | M_ZERO); 3057 if (rcap_buf == NULL) 3058 return (ENOMEM); 3059 3060 scsi_read_capacity(&ccb->csio, 3061 /*retries*/ cd_retry_count, 3062 cddone, 3063 MSG_SIMPLE_Q_TAG, 3064 rcap_buf, 3065 SSD_FULL_SIZE, 3066 /* timeout */20000); 3067 3068 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3069 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3070 3071 xpt_release_ccb(ccb); 3072 3073 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3074 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3075 /* Make sure we got at least some block size. */ 3076 if (error == 0 && softc->params.blksize == 0) 3077 error = EIO; 3078 /* 3079 * SCSI-3 mandates that the reported blocksize shall be 2048. 3080 * Older drives sometimes report funny values, trim it down to 3081 * 2048, or other parts of the kernel will get confused. 3082 * 3083 * XXX we leave drives alone that might report 512 bytes, as 3084 * well as drives reporting more weird sizes like perhaps 4K. 3085 */ 3086 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3087 softc->params.blksize = 2048; 3088 3089 free(rcap_buf, M_SCSICD); 3090 *size = softc->params.disksize; 3091 3092 return (error); 3093 3094 } 3095 3096 static int 3097 cd6byteworkaround(union ccb *ccb) 3098 { 3099 u_int8_t *cdb; 3100 struct cam_periph *periph; 3101 struct cd_softc *softc; 3102 struct cd_mode_params *params; 3103 int frozen, found; 3104 3105 periph = xpt_path_periph(ccb->ccb_h.path); 3106 softc = (struct cd_softc *)periph->softc; 3107 3108 cdb = ccb->csio.cdb_io.cdb_bytes; 3109 3110 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3111 || ((cdb[0] != MODE_SENSE_6) 3112 && (cdb[0] != MODE_SELECT_6))) 3113 return (0); 3114 3115 /* 3116 * Because there is no convenient place to stash the overall 3117 * cd_mode_params structure pointer, we have to grab it like this. 3118 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3119 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3120 * 3121 * XXX It would be nice if, at some point, we could increase the 3122 * number of available peripheral private pointers. Both pointers 3123 * are currently used in most every peripheral driver. 3124 */ 3125 found = 0; 3126 3127 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3128 if (params->mode_buf == ccb->csio.data_ptr) { 3129 found = 1; 3130 break; 3131 } 3132 } 3133 3134 /* 3135 * This shouldn't happen. All mode sense and mode select 3136 * operations in the cd(4) driver MUST go through cdgetmode() and 3137 * cdsetmode()! 3138 */ 3139 if (found == 0) { 3140 xpt_print(periph->path, 3141 "mode buffer not found in mode queue!\n"); 3142 return (0); 3143 } 3144 3145 params->cdb_size = 10; 3146 softc->minimum_command_size = 10; 3147 xpt_print(ccb->ccb_h.path, 3148 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3149 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3150 3151 if (cdb[0] == MODE_SENSE_6) { 3152 struct scsi_mode_sense_10 ms10; 3153 struct scsi_mode_sense_6 *ms6; 3154 int len; 3155 3156 ms6 = (struct scsi_mode_sense_6 *)cdb; 3157 3158 bzero(&ms10, sizeof(ms10)); 3159 ms10.opcode = MODE_SENSE_10; 3160 ms10.byte2 = ms6->byte2; 3161 ms10.page = ms6->page; 3162 3163 /* 3164 * 10 byte mode header, block descriptor, 3165 * sizeof(union cd_pages) 3166 */ 3167 len = sizeof(struct cd_mode_data_10); 3168 ccb->csio.dxfer_len = len; 3169 3170 scsi_ulto2b(len, ms10.length); 3171 ms10.control = ms6->control; 3172 bcopy(&ms10, cdb, 10); 3173 ccb->csio.cdb_len = 10; 3174 } else { 3175 struct scsi_mode_select_10 ms10; 3176 struct scsi_mode_select_6 *ms6; 3177 struct scsi_mode_header_6 *header6; 3178 struct scsi_mode_header_10 *header10; 3179 struct scsi_mode_page_header *page_header; 3180 int blk_desc_len, page_num, page_size, len; 3181 3182 ms6 = (struct scsi_mode_select_6 *)cdb; 3183 3184 bzero(&ms10, sizeof(ms10)); 3185 ms10.opcode = MODE_SELECT_10; 3186 ms10.byte2 = ms6->byte2; 3187 3188 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3189 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3190 3191 page_header = find_mode_page_6(header6); 3192 page_num = page_header->page_code; 3193 3194 blk_desc_len = header6->blk_desc_len; 3195 3196 page_size = cdgetpagesize(page_num); 3197 3198 if (page_size != (page_header->page_length + 3199 sizeof(*page_header))) 3200 page_size = page_header->page_length + 3201 sizeof(*page_header); 3202 3203 len = sizeof(*header10) + blk_desc_len + page_size; 3204 3205 len = min(params->alloc_len, len); 3206 3207 /* 3208 * Since the 6 byte parameter header is shorter than the 10 3209 * byte parameter header, we need to copy the actual mode 3210 * page data, and the block descriptor, if any, so things wind 3211 * up in the right place. The regions will overlap, but 3212 * bcopy() does the right thing. 3213 */ 3214 bcopy(params->mode_buf + sizeof(*header6), 3215 params->mode_buf + sizeof(*header10), 3216 len - sizeof(*header10)); 3217 3218 /* Make sure these fields are set correctly. */ 3219 scsi_ulto2b(0, header10->data_length); 3220 header10->medium_type = 0; 3221 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3222 3223 ccb->csio.dxfer_len = len; 3224 3225 scsi_ulto2b(len, ms10.length); 3226 ms10.control = ms6->control; 3227 bcopy(&ms10, cdb, 10); 3228 ccb->csio.cdb_len = 10; 3229 } 3230 3231 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3232 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3233 xpt_action(ccb); 3234 if (frozen) { 3235 cam_release_devq(ccb->ccb_h.path, 3236 /*relsim_flags*/0, 3237 /*openings*/0, 3238 /*timeout*/0, 3239 /*getcount_only*/0); 3240 } 3241 3242 return (ERESTART); 3243 } 3244 3245 static int 3246 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3247 { 3248 struct cd_softc *softc; 3249 struct cam_periph *periph; 3250 int error, error_code, sense_key, asc, ascq; 3251 3252 periph = xpt_path_periph(ccb->ccb_h.path); 3253 softc = (struct cd_softc *)periph->softc; 3254 3255 error = 0; 3256 3257 /* 3258 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3259 * CDB comes back with this particular error, try transforming it 3260 * into the 10 byte version. 3261 */ 3262 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3263 error = cd6byteworkaround(ccb); 3264 } else if (scsi_extract_sense_ccb(ccb, 3265 &error_code, &sense_key, &asc, &ascq)) { 3266 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3267 error = cd6byteworkaround(ccb); 3268 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3269 asc == 0x28 && ascq == 0x00) 3270 disk_media_changed(softc->disk, M_NOWAIT); 3271 else if (sense_key == SSD_KEY_NOT_READY && 3272 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3273 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3274 disk_media_gone(softc->disk, M_NOWAIT); 3275 } 3276 } 3277 3278 if (error == ERESTART) 3279 return (error); 3280 3281 /* 3282 * XXX 3283 * Until we have a better way of doing pack validation, 3284 * don't treat UAs as errors. 3285 */ 3286 sense_flags |= SF_RETRY_UA; 3287 return (cam_periph_error(ccb, cam_flags, sense_flags, 3288 &softc->saved_ccb)); 3289 } 3290 3291 static void 3292 cdmediapoll(void *arg) 3293 { 3294 struct cam_periph *periph = arg; 3295 struct cd_softc *softc = periph->softc; 3296 3297 if (softc->flags & CD_FLAG_CHANGER) 3298 return; 3299 3300 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 3301 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3302 softc->tur = 1; 3303 xpt_schedule(periph, CAM_PRIORITY_DEV); 3304 } 3305 } 3306 /* Queue us up again */ 3307 if (cd_poll_period != 0) 3308 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz); 3309 } 3310 3311 /* 3312 * Read table of contents 3313 */ 3314 static int 3315 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3316 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3317 { 3318 struct scsi_read_toc *scsi_cmd; 3319 u_int32_t ntoc; 3320 struct ccb_scsiio *csio; 3321 union ccb *ccb; 3322 int error; 3323 3324 ntoc = len; 3325 error = 0; 3326 3327 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3328 3329 csio = &ccb->csio; 3330 3331 cam_fill_csio(csio, 3332 /* retries */ cd_retry_count, 3333 /* cbfcnp */ cddone, 3334 /* flags */ CAM_DIR_IN, 3335 /* tag_action */ MSG_SIMPLE_Q_TAG, 3336 /* data_ptr */ data, 3337 /* dxfer_len */ len, 3338 /* sense_len */ SSD_FULL_SIZE, 3339 sizeof(struct scsi_read_toc), 3340 /* timeout */ 50000); 3341 3342 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3343 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3344 3345 if (mode == CD_MSF_FORMAT) 3346 scsi_cmd->byte2 |= CD_MSF; 3347 scsi_cmd->from_track = start; 3348 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3349 scsi_cmd->data_len[0] = (ntoc) >> 8; 3350 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3351 3352 scsi_cmd->op_code = READ_TOC; 3353 3354 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3355 /*sense_flags*/SF_RETRY_UA | sense_flags); 3356 3357 xpt_release_ccb(ccb); 3358 3359 return(error); 3360 } 3361 3362 static int 3363 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3364 u_int32_t format, int track, 3365 struct cd_sub_channel_info *data, u_int32_t len) 3366 { 3367 struct scsi_read_subchannel *scsi_cmd; 3368 struct ccb_scsiio *csio; 3369 union ccb *ccb; 3370 int error; 3371 3372 error = 0; 3373 3374 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3375 3376 csio = &ccb->csio; 3377 3378 cam_fill_csio(csio, 3379 /* retries */ cd_retry_count, 3380 /* cbfcnp */ cddone, 3381 /* flags */ CAM_DIR_IN, 3382 /* tag_action */ MSG_SIMPLE_Q_TAG, 3383 /* data_ptr */ (u_int8_t *)data, 3384 /* dxfer_len */ len, 3385 /* sense_len */ SSD_FULL_SIZE, 3386 sizeof(struct scsi_read_subchannel), 3387 /* timeout */ 50000); 3388 3389 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3390 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3391 3392 scsi_cmd->op_code = READ_SUBCHANNEL; 3393 if (mode == CD_MSF_FORMAT) 3394 scsi_cmd->byte1 |= CD_MSF; 3395 scsi_cmd->byte2 = SRS_SUBQ; 3396 scsi_cmd->subchan_format = format; 3397 scsi_cmd->track = track; 3398 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3399 scsi_cmd->control = 0; 3400 3401 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3402 /*sense_flags*/SF_RETRY_UA); 3403 3404 xpt_release_ccb(ccb); 3405 3406 return(error); 3407 } 3408 3409 3410 /* 3411 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3412 * routine. See comments in cd6byteworkaround() for details. 3413 */ 3414 static int 3415 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3416 u_int32_t page) 3417 { 3418 struct ccb_scsiio *csio; 3419 struct cd_softc *softc; 3420 union ccb *ccb; 3421 int param_len; 3422 int error; 3423 3424 softc = (struct cd_softc *)periph->softc; 3425 3426 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3427 3428 csio = &ccb->csio; 3429 3430 data->cdb_size = softc->minimum_command_size; 3431 if (data->cdb_size < 10) 3432 param_len = sizeof(struct cd_mode_data); 3433 else 3434 param_len = sizeof(struct cd_mode_data_10); 3435 3436 /* Don't say we've got more room than we actually allocated */ 3437 param_len = min(param_len, data->alloc_len); 3438 3439 scsi_mode_sense_len(csio, 3440 /* retries */ cd_retry_count, 3441 /* cbfcnp */ cddone, 3442 /* tag_action */ MSG_SIMPLE_Q_TAG, 3443 /* dbd */ 0, 3444 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3445 /* page */ page, 3446 /* param_buf */ data->mode_buf, 3447 /* param_len */ param_len, 3448 /* minimum_cmd_size */ softc->minimum_command_size, 3449 /* sense_len */ SSD_FULL_SIZE, 3450 /* timeout */ 50000); 3451 3452 /* 3453 * It would be nice not to have to do this, but there's no 3454 * available pointer in the CCB that would allow us to stuff the 3455 * mode params structure in there and retrieve it in 3456 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3457 * lets the caller know what CDB size we ended up using, so they 3458 * can find the actual mode page offset. 3459 */ 3460 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3461 3462 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3463 /*sense_flags*/SF_RETRY_UA); 3464 3465 xpt_release_ccb(ccb); 3466 3467 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3468 3469 /* 3470 * This is a bit of belt-and-suspenders checking, but if we run 3471 * into a situation where the target sends back multiple block 3472 * descriptors, we might not have enough space in the buffer to 3473 * see the whole mode page. Better to return an error than 3474 * potentially access memory beyond our malloced region. 3475 */ 3476 if (error == 0) { 3477 u_int32_t data_len; 3478 3479 if (data->cdb_size == 10) { 3480 struct scsi_mode_header_10 *hdr10; 3481 3482 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3483 data_len = scsi_2btoul(hdr10->data_length); 3484 data_len += sizeof(hdr10->data_length); 3485 } else { 3486 struct scsi_mode_header_6 *hdr6; 3487 3488 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3489 data_len = hdr6->data_length; 3490 data_len += sizeof(hdr6->data_length); 3491 } 3492 3493 /* 3494 * Complain if there is more mode data available than we 3495 * allocated space for. This could potentially happen if 3496 * we miscalculated the page length for some reason, if the 3497 * drive returns multiple block descriptors, or if it sets 3498 * the data length incorrectly. 3499 */ 3500 if (data_len > data->alloc_len) { 3501 xpt_print(periph->path, "allocated modepage %d length " 3502 "%d < returned length %d\n", page, data->alloc_len, 3503 data_len); 3504 error = ENOSPC; 3505 } 3506 } 3507 return (error); 3508 } 3509 3510 /* 3511 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3512 * routine. See comments in cd6byteworkaround() for details. 3513 */ 3514 static int 3515 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3516 { 3517 struct ccb_scsiio *csio; 3518 struct cd_softc *softc; 3519 union ccb *ccb; 3520 int cdb_size, param_len; 3521 int error; 3522 3523 softc = (struct cd_softc *)periph->softc; 3524 3525 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3526 3527 csio = &ccb->csio; 3528 3529 error = 0; 3530 3531 /* 3532 * If the data is formatted for the 10 byte version of the mode 3533 * select parameter list, we need to use the 10 byte CDB. 3534 * Otherwise, we use whatever the stored minimum command size. 3535 */ 3536 if (data->cdb_size == 10) 3537 cdb_size = data->cdb_size; 3538 else 3539 cdb_size = softc->minimum_command_size; 3540 3541 if (cdb_size >= 10) { 3542 struct scsi_mode_header_10 *mode_header; 3543 u_int32_t data_len; 3544 3545 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3546 3547 data_len = scsi_2btoul(mode_header->data_length); 3548 3549 scsi_ulto2b(0, mode_header->data_length); 3550 /* 3551 * SONY drives do not allow a mode select with a medium_type 3552 * value that has just been returned by a mode sense; use a 3553 * medium_type of 0 (Default) instead. 3554 */ 3555 mode_header->medium_type = 0; 3556 3557 /* 3558 * Pass back whatever the drive passed to us, plus the size 3559 * of the data length field. 3560 */ 3561 param_len = data_len + sizeof(mode_header->data_length); 3562 3563 } else { 3564 struct scsi_mode_header_6 *mode_header; 3565 3566 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3567 3568 param_len = mode_header->data_length + 1; 3569 3570 mode_header->data_length = 0; 3571 /* 3572 * SONY drives do not allow a mode select with a medium_type 3573 * value that has just been returned by a mode sense; use a 3574 * medium_type of 0 (Default) instead. 3575 */ 3576 mode_header->medium_type = 0; 3577 } 3578 3579 /* Don't say we've got more room than we actually allocated */ 3580 param_len = min(param_len, data->alloc_len); 3581 3582 scsi_mode_select_len(csio, 3583 /* retries */ cd_retry_count, 3584 /* cbfcnp */ cddone, 3585 /* tag_action */ MSG_SIMPLE_Q_TAG, 3586 /* scsi_page_fmt */ 1, 3587 /* save_pages */ 0, 3588 /* param_buf */ data->mode_buf, 3589 /* param_len */ param_len, 3590 /* minimum_cmd_size */ cdb_size, 3591 /* sense_len */ SSD_FULL_SIZE, 3592 /* timeout */ 50000); 3593 3594 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3595 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3596 3597 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3598 /*sense_flags*/SF_RETRY_UA); 3599 3600 xpt_release_ccb(ccb); 3601 3602 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3603 3604 return (error); 3605 } 3606 3607 3608 static int 3609 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3610 { 3611 struct ccb_scsiio *csio; 3612 union ccb *ccb; 3613 int error; 3614 u_int8_t cdb_len; 3615 3616 error = 0; 3617 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3618 csio = &ccb->csio; 3619 /* 3620 * Use the smallest possible command to perform the operation. 3621 */ 3622 if ((len & 0xffff0000) == 0) { 3623 /* 3624 * We can fit in a 10 byte cdb. 3625 */ 3626 struct scsi_play_10 *scsi_cmd; 3627 3628 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3629 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3630 scsi_cmd->op_code = PLAY_10; 3631 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3632 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3633 cdb_len = sizeof(*scsi_cmd); 3634 } else { 3635 struct scsi_play_12 *scsi_cmd; 3636 3637 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3638 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3639 scsi_cmd->op_code = PLAY_12; 3640 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3641 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3642 cdb_len = sizeof(*scsi_cmd); 3643 } 3644 cam_fill_csio(csio, 3645 /*retries*/ cd_retry_count, 3646 cddone, 3647 /*flags*/CAM_DIR_NONE, 3648 MSG_SIMPLE_Q_TAG, 3649 /*dataptr*/NULL, 3650 /*datalen*/0, 3651 /*sense_len*/SSD_FULL_SIZE, 3652 cdb_len, 3653 /*timeout*/50 * 1000); 3654 3655 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3656 /*sense_flags*/SF_RETRY_UA); 3657 3658 xpt_release_ccb(ccb); 3659 3660 return(error); 3661 } 3662 3663 static int 3664 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3665 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3666 { 3667 struct scsi_play_msf *scsi_cmd; 3668 struct ccb_scsiio *csio; 3669 union ccb *ccb; 3670 int error; 3671 3672 error = 0; 3673 3674 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3675 3676 csio = &ccb->csio; 3677 3678 cam_fill_csio(csio, 3679 /* retries */ cd_retry_count, 3680 /* cbfcnp */ cddone, 3681 /* flags */ CAM_DIR_NONE, 3682 /* tag_action */ MSG_SIMPLE_Q_TAG, 3683 /* data_ptr */ NULL, 3684 /* dxfer_len */ 0, 3685 /* sense_len */ SSD_FULL_SIZE, 3686 sizeof(struct scsi_play_msf), 3687 /* timeout */ 50000); 3688 3689 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3690 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3691 3692 scsi_cmd->op_code = PLAY_MSF; 3693 scsi_cmd->start_m = startm; 3694 scsi_cmd->start_s = starts; 3695 scsi_cmd->start_f = startf; 3696 scsi_cmd->end_m = endm; 3697 scsi_cmd->end_s = ends; 3698 scsi_cmd->end_f = endf; 3699 3700 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3701 /*sense_flags*/SF_RETRY_UA); 3702 3703 xpt_release_ccb(ccb); 3704 3705 return(error); 3706 } 3707 3708 3709 static int 3710 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3711 u_int32_t etrack, u_int32_t eindex) 3712 { 3713 struct scsi_play_track *scsi_cmd; 3714 struct ccb_scsiio *csio; 3715 union ccb *ccb; 3716 int error; 3717 3718 error = 0; 3719 3720 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3721 3722 csio = &ccb->csio; 3723 3724 cam_fill_csio(csio, 3725 /* retries */ cd_retry_count, 3726 /* cbfcnp */ cddone, 3727 /* flags */ CAM_DIR_NONE, 3728 /* tag_action */ MSG_SIMPLE_Q_TAG, 3729 /* data_ptr */ NULL, 3730 /* dxfer_len */ 0, 3731 /* sense_len */ SSD_FULL_SIZE, 3732 sizeof(struct scsi_play_track), 3733 /* timeout */ 50000); 3734 3735 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3736 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3737 3738 scsi_cmd->op_code = PLAY_TRACK; 3739 scsi_cmd->start_track = strack; 3740 scsi_cmd->start_index = sindex; 3741 scsi_cmd->end_track = etrack; 3742 scsi_cmd->end_index = eindex; 3743 3744 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3745 /*sense_flags*/SF_RETRY_UA); 3746 3747 xpt_release_ccb(ccb); 3748 3749 return(error); 3750 } 3751 3752 static int 3753 cdpause(struct cam_periph *periph, u_int32_t go) 3754 { 3755 struct scsi_pause *scsi_cmd; 3756 struct ccb_scsiio *csio; 3757 union ccb *ccb; 3758 int error; 3759 3760 error = 0; 3761 3762 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3763 3764 csio = &ccb->csio; 3765 3766 cam_fill_csio(csio, 3767 /* retries */ cd_retry_count, 3768 /* cbfcnp */ cddone, 3769 /* flags */ CAM_DIR_NONE, 3770 /* tag_action */ MSG_SIMPLE_Q_TAG, 3771 /* data_ptr */ NULL, 3772 /* dxfer_len */ 0, 3773 /* sense_len */ SSD_FULL_SIZE, 3774 sizeof(struct scsi_pause), 3775 /* timeout */ 50000); 3776 3777 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3778 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3779 3780 scsi_cmd->op_code = PAUSE; 3781 scsi_cmd->resume = go; 3782 3783 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3784 /*sense_flags*/SF_RETRY_UA); 3785 3786 xpt_release_ccb(ccb); 3787 3788 return(error); 3789 } 3790 3791 static int 3792 cdstartunit(struct cam_periph *periph, int load) 3793 { 3794 union ccb *ccb; 3795 int error; 3796 3797 error = 0; 3798 3799 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3800 3801 scsi_start_stop(&ccb->csio, 3802 /* retries */ cd_retry_count, 3803 /* cbfcnp */ cddone, 3804 /* tag_action */ MSG_SIMPLE_Q_TAG, 3805 /* start */ TRUE, 3806 /* load_eject */ load, 3807 /* immediate */ FALSE, 3808 /* sense_len */ SSD_FULL_SIZE, 3809 /* timeout */ 50000); 3810 3811 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3812 /*sense_flags*/SF_RETRY_UA); 3813 3814 xpt_release_ccb(ccb); 3815 3816 return(error); 3817 } 3818 3819 static int 3820 cdstopunit(struct cam_periph *periph, u_int32_t eject) 3821 { 3822 union ccb *ccb; 3823 int error; 3824 3825 error = 0; 3826 3827 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3828 3829 scsi_start_stop(&ccb->csio, 3830 /* retries */ cd_retry_count, 3831 /* cbfcnp */ cddone, 3832 /* tag_action */ MSG_SIMPLE_Q_TAG, 3833 /* start */ FALSE, 3834 /* load_eject */ eject, 3835 /* immediate */ FALSE, 3836 /* sense_len */ SSD_FULL_SIZE, 3837 /* timeout */ 50000); 3838 3839 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3840 /*sense_flags*/SF_RETRY_UA); 3841 3842 xpt_release_ccb(ccb); 3843 3844 return(error); 3845 } 3846 3847 static int 3848 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3849 { 3850 struct scsi_set_speed *scsi_cmd; 3851 struct ccb_scsiio *csio; 3852 union ccb *ccb; 3853 int error; 3854 3855 error = 0; 3856 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3857 csio = &ccb->csio; 3858 3859 /* Preserve old behavior: units in multiples of CDROM speed */ 3860 if (rdspeed < 177) 3861 rdspeed *= 177; 3862 if (wrspeed < 177) 3863 wrspeed *= 177; 3864 3865 cam_fill_csio(csio, 3866 /* retries */ cd_retry_count, 3867 /* cbfcnp */ cddone, 3868 /* flags */ CAM_DIR_NONE, 3869 /* tag_action */ MSG_SIMPLE_Q_TAG, 3870 /* data_ptr */ NULL, 3871 /* dxfer_len */ 0, 3872 /* sense_len */ SSD_FULL_SIZE, 3873 sizeof(struct scsi_set_speed), 3874 /* timeout */ 50000); 3875 3876 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3877 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3878 3879 scsi_cmd->opcode = SET_CD_SPEED; 3880 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3881 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3882 3883 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3884 /*sense_flags*/SF_RETRY_UA); 3885 3886 xpt_release_ccb(ccb); 3887 3888 return(error); 3889 } 3890 3891 static int 3892 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3893 { 3894 union ccb *ccb; 3895 u_int8_t *databuf; 3896 u_int32_t lba; 3897 int error; 3898 int length; 3899 3900 error = 0; 3901 databuf = NULL; 3902 lba = 0; 3903 3904 switch (authinfo->format) { 3905 case DVD_REPORT_AGID: 3906 length = sizeof(struct scsi_report_key_data_agid); 3907 break; 3908 case DVD_REPORT_CHALLENGE: 3909 length = sizeof(struct scsi_report_key_data_challenge); 3910 break; 3911 case DVD_REPORT_KEY1: 3912 length = sizeof(struct scsi_report_key_data_key1_key2); 3913 break; 3914 case DVD_REPORT_TITLE_KEY: 3915 length = sizeof(struct scsi_report_key_data_title); 3916 /* The lba field is only set for the title key */ 3917 lba = authinfo->lba; 3918 break; 3919 case DVD_REPORT_ASF: 3920 length = sizeof(struct scsi_report_key_data_asf); 3921 break; 3922 case DVD_REPORT_RPC: 3923 length = sizeof(struct scsi_report_key_data_rpc); 3924 break; 3925 case DVD_INVALIDATE_AGID: 3926 length = 0; 3927 break; 3928 default: 3929 return (EINVAL); 3930 } 3931 3932 if (length != 0) { 3933 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3934 } else 3935 databuf = NULL; 3936 3937 cam_periph_lock(periph); 3938 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3939 3940 scsi_report_key(&ccb->csio, 3941 /* retries */ cd_retry_count, 3942 /* cbfcnp */ cddone, 3943 /* tag_action */ MSG_SIMPLE_Q_TAG, 3944 /* lba */ lba, 3945 /* agid */ authinfo->agid, 3946 /* key_format */ authinfo->format, 3947 /* data_ptr */ databuf, 3948 /* dxfer_len */ length, 3949 /* sense_len */ SSD_FULL_SIZE, 3950 /* timeout */ 50000); 3951 3952 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3953 /*sense_flags*/SF_RETRY_UA); 3954 3955 if (error != 0) 3956 goto bailout; 3957 3958 if (ccb->csio.resid != 0) { 3959 xpt_print(periph->path, "warning, residual for report key " 3960 "command is %d\n", ccb->csio.resid); 3961 } 3962 3963 switch(authinfo->format) { 3964 case DVD_REPORT_AGID: { 3965 struct scsi_report_key_data_agid *agid_data; 3966 3967 agid_data = (struct scsi_report_key_data_agid *)databuf; 3968 3969 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3970 RKD_AGID_SHIFT; 3971 break; 3972 } 3973 case DVD_REPORT_CHALLENGE: { 3974 struct scsi_report_key_data_challenge *chal_data; 3975 3976 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3977 3978 bcopy(chal_data->challenge_key, authinfo->keychal, 3979 min(sizeof(chal_data->challenge_key), 3980 sizeof(authinfo->keychal))); 3981 break; 3982 } 3983 case DVD_REPORT_KEY1: { 3984 struct scsi_report_key_data_key1_key2 *key1_data; 3985 3986 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3987 3988 bcopy(key1_data->key1, authinfo->keychal, 3989 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3990 break; 3991 } 3992 case DVD_REPORT_TITLE_KEY: { 3993 struct scsi_report_key_data_title *title_data; 3994 3995 title_data = (struct scsi_report_key_data_title *)databuf; 3996 3997 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3998 RKD_TITLE_CPM_SHIFT; 3999 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 4000 RKD_TITLE_CP_SEC_SHIFT; 4001 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 4002 RKD_TITLE_CMGS_SHIFT; 4003 bcopy(title_data->title_key, authinfo->keychal, 4004 min(sizeof(title_data->title_key), 4005 sizeof(authinfo->keychal))); 4006 break; 4007 } 4008 case DVD_REPORT_ASF: { 4009 struct scsi_report_key_data_asf *asf_data; 4010 4011 asf_data = (struct scsi_report_key_data_asf *)databuf; 4012 4013 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 4014 break; 4015 } 4016 case DVD_REPORT_RPC: { 4017 struct scsi_report_key_data_rpc *rpc_data; 4018 4019 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 4020 4021 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 4022 RKD_RPC_TYPE_SHIFT; 4023 authinfo->vend_rsts = 4024 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 4025 RKD_RPC_VENDOR_RESET_SHIFT; 4026 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 4027 authinfo->region = rpc_data->region_mask; 4028 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 4029 break; 4030 } 4031 case DVD_INVALIDATE_AGID: 4032 break; 4033 default: 4034 /* This should be impossible, since we checked above */ 4035 error = EINVAL; 4036 goto bailout; 4037 break; /* NOTREACHED */ 4038 } 4039 4040 bailout: 4041 xpt_release_ccb(ccb); 4042 cam_periph_unlock(periph); 4043 4044 if (databuf != NULL) 4045 free(databuf, M_DEVBUF); 4046 4047 return(error); 4048 } 4049 4050 static int 4051 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4052 { 4053 union ccb *ccb; 4054 u_int8_t *databuf; 4055 int length; 4056 int error; 4057 4058 error = 0; 4059 databuf = NULL; 4060 4061 switch(authinfo->format) { 4062 case DVD_SEND_CHALLENGE: { 4063 struct scsi_report_key_data_challenge *challenge_data; 4064 4065 length = sizeof(*challenge_data); 4066 4067 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4068 4069 databuf = (u_int8_t *)challenge_data; 4070 4071 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4072 challenge_data->data_len); 4073 4074 bcopy(authinfo->keychal, challenge_data->challenge_key, 4075 min(sizeof(authinfo->keychal), 4076 sizeof(challenge_data->challenge_key))); 4077 break; 4078 } 4079 case DVD_SEND_KEY2: { 4080 struct scsi_report_key_data_key1_key2 *key2_data; 4081 4082 length = sizeof(*key2_data); 4083 4084 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4085 4086 databuf = (u_int8_t *)key2_data; 4087 4088 scsi_ulto2b(length - sizeof(key2_data->data_len), 4089 key2_data->data_len); 4090 4091 bcopy(authinfo->keychal, key2_data->key1, 4092 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4093 4094 break; 4095 } 4096 case DVD_SEND_RPC: { 4097 struct scsi_send_key_data_rpc *rpc_data; 4098 4099 length = sizeof(*rpc_data); 4100 4101 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4102 4103 databuf = (u_int8_t *)rpc_data; 4104 4105 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4106 rpc_data->data_len); 4107 4108 rpc_data->region_code = authinfo->region; 4109 break; 4110 } 4111 default: 4112 return (EINVAL); 4113 } 4114 4115 cam_periph_lock(periph); 4116 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4117 4118 scsi_send_key(&ccb->csio, 4119 /* retries */ cd_retry_count, 4120 /* cbfcnp */ cddone, 4121 /* tag_action */ MSG_SIMPLE_Q_TAG, 4122 /* agid */ authinfo->agid, 4123 /* key_format */ authinfo->format, 4124 /* data_ptr */ databuf, 4125 /* dxfer_len */ length, 4126 /* sense_len */ SSD_FULL_SIZE, 4127 /* timeout */ 50000); 4128 4129 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4130 /*sense_flags*/SF_RETRY_UA); 4131 4132 xpt_release_ccb(ccb); 4133 cam_periph_unlock(periph); 4134 4135 if (databuf != NULL) 4136 free(databuf, M_DEVBUF); 4137 4138 return(error); 4139 } 4140 4141 static int 4142 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4143 { 4144 union ccb *ccb; 4145 u_int8_t *databuf; 4146 u_int32_t address; 4147 int error; 4148 int length; 4149 4150 error = 0; 4151 databuf = NULL; 4152 /* The address is reserved for many of the formats */ 4153 address = 0; 4154 4155 switch(dvdstruct->format) { 4156 case DVD_STRUCT_PHYSICAL: 4157 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4158 break; 4159 case DVD_STRUCT_COPYRIGHT: 4160 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4161 break; 4162 case DVD_STRUCT_DISCKEY: 4163 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4164 break; 4165 case DVD_STRUCT_BCA: 4166 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4167 break; 4168 case DVD_STRUCT_MANUFACT: 4169 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4170 break; 4171 case DVD_STRUCT_CMI: 4172 return (ENODEV); 4173 case DVD_STRUCT_PROTDISCID: 4174 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4175 break; 4176 case DVD_STRUCT_DISCKEYBLOCK: 4177 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4178 break; 4179 case DVD_STRUCT_DDS: 4180 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4181 break; 4182 case DVD_STRUCT_MEDIUM_STAT: 4183 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4184 break; 4185 case DVD_STRUCT_SPARE_AREA: 4186 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4187 break; 4188 case DVD_STRUCT_RMD_LAST: 4189 return (ENODEV); 4190 case DVD_STRUCT_RMD_RMA: 4191 return (ENODEV); 4192 case DVD_STRUCT_PRERECORDED: 4193 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4194 break; 4195 case DVD_STRUCT_UNIQUEID: 4196 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4197 break; 4198 case DVD_STRUCT_DCB: 4199 return (ENODEV); 4200 case DVD_STRUCT_LIST: 4201 /* 4202 * This is the maximum allocation length for the READ DVD 4203 * STRUCTURE command. There's nothing in the MMC3 spec 4204 * that indicates a limit in the amount of data that can 4205 * be returned from this call, other than the limits 4206 * imposed by the 2-byte length variables. 4207 */ 4208 length = 65535; 4209 break; 4210 default: 4211 return (EINVAL); 4212 } 4213 4214 if (length != 0) { 4215 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4216 } else 4217 databuf = NULL; 4218 4219 cam_periph_lock(periph); 4220 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 4221 4222 scsi_read_dvd_structure(&ccb->csio, 4223 /* retries */ cd_retry_count, 4224 /* cbfcnp */ cddone, 4225 /* tag_action */ MSG_SIMPLE_Q_TAG, 4226 /* lba */ address, 4227 /* layer_number */ dvdstruct->layer_num, 4228 /* key_format */ dvdstruct->format, 4229 /* agid */ dvdstruct->agid, 4230 /* data_ptr */ databuf, 4231 /* dxfer_len */ length, 4232 /* sense_len */ SSD_FULL_SIZE, 4233 /* timeout */ 50000); 4234 4235 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4236 /*sense_flags*/SF_RETRY_UA); 4237 4238 if (error != 0) 4239 goto bailout; 4240 4241 switch(dvdstruct->format) { 4242 case DVD_STRUCT_PHYSICAL: { 4243 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4244 struct dvd_layer *outlayer; 4245 struct scsi_read_dvd_struct_data_physical *phys_data; 4246 4247 phys_data = 4248 (struct scsi_read_dvd_struct_data_physical *)databuf; 4249 inlayer = &phys_data->layer_desc; 4250 outlayer = (struct dvd_layer *)&dvdstruct->data; 4251 4252 dvdstruct->length = sizeof(*inlayer); 4253 4254 outlayer->book_type = (inlayer->book_type_version & 4255 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4256 outlayer->book_version = (inlayer->book_type_version & 4257 RDSD_BOOK_VERSION_MASK); 4258 outlayer->disc_size = (inlayer->disc_size_max_rate & 4259 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4260 outlayer->max_rate = (inlayer->disc_size_max_rate & 4261 RDSD_MAX_RATE_MASK); 4262 outlayer->nlayers = (inlayer->layer_info & 4263 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4264 outlayer->track_path = (inlayer->layer_info & 4265 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4266 outlayer->layer_type = (inlayer->layer_info & 4267 RDSD_LAYER_TYPE_MASK); 4268 outlayer->linear_density = (inlayer->density & 4269 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4270 outlayer->track_density = (inlayer->density & 4271 RDSD_TRACK_DENSITY_MASK); 4272 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4273 RDSD_BCA_SHIFT; 4274 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4275 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4276 outlayer->end_sector_l0 = 4277 scsi_3btoul(inlayer->end_sector_layer0); 4278 break; 4279 } 4280 case DVD_STRUCT_COPYRIGHT: { 4281 struct scsi_read_dvd_struct_data_copyright *copy_data; 4282 4283 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4284 databuf; 4285 4286 dvdstruct->cpst = copy_data->cps_type; 4287 dvdstruct->rmi = copy_data->region_info; 4288 dvdstruct->length = 0; 4289 4290 break; 4291 } 4292 default: 4293 /* 4294 * Tell the user what the overall length is, no matter 4295 * what we can actually fit in the data buffer. 4296 */ 4297 dvdstruct->length = length - ccb->csio.resid - 4298 sizeof(struct scsi_read_dvd_struct_data_header); 4299 4300 /* 4301 * But only actually copy out the smaller of what we read 4302 * in or what the structure can take. 4303 */ 4304 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4305 dvdstruct->data, 4306 min(sizeof(dvdstruct->data), dvdstruct->length)); 4307 break; 4308 } 4309 4310 bailout: 4311 xpt_release_ccb(ccb); 4312 cam_periph_unlock(periph); 4313 4314 if (databuf != NULL) 4315 free(databuf, M_DEVBUF); 4316 4317 return(error); 4318 } 4319 4320 void 4321 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4322 void (*cbfcnp)(struct cam_periph *, union ccb *), 4323 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4324 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4325 u_int8_t sense_len, u_int32_t timeout) 4326 { 4327 struct scsi_report_key *scsi_cmd; 4328 4329 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4330 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4331 scsi_cmd->opcode = REPORT_KEY; 4332 scsi_ulto4b(lba, scsi_cmd->lba); 4333 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4334 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4335 (key_format & RK_KF_KEYFORMAT_MASK); 4336 4337 cam_fill_csio(csio, 4338 retries, 4339 cbfcnp, 4340 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4341 tag_action, 4342 /*data_ptr*/ data_ptr, 4343 /*dxfer_len*/ dxfer_len, 4344 sense_len, 4345 sizeof(*scsi_cmd), 4346 timeout); 4347 } 4348 4349 void 4350 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4351 void (*cbfcnp)(struct cam_periph *, union ccb *), 4352 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4353 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4354 u_int32_t timeout) 4355 { 4356 struct scsi_send_key *scsi_cmd; 4357 4358 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4359 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4360 scsi_cmd->opcode = SEND_KEY; 4361 4362 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4363 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4364 (key_format & RK_KF_KEYFORMAT_MASK); 4365 4366 cam_fill_csio(csio, 4367 retries, 4368 cbfcnp, 4369 /*flags*/ CAM_DIR_OUT, 4370 tag_action, 4371 /*data_ptr*/ data_ptr, 4372 /*dxfer_len*/ dxfer_len, 4373 sense_len, 4374 sizeof(*scsi_cmd), 4375 timeout); 4376 } 4377 4378 4379 void 4380 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4381 void (*cbfcnp)(struct cam_periph *, union ccb *), 4382 u_int8_t tag_action, u_int32_t address, 4383 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4384 u_int8_t *data_ptr, u_int32_t dxfer_len, 4385 u_int8_t sense_len, u_int32_t timeout) 4386 { 4387 struct scsi_read_dvd_structure *scsi_cmd; 4388 4389 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4390 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4391 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4392 4393 scsi_ulto4b(address, scsi_cmd->address); 4394 scsi_cmd->layer_number = layer_number; 4395 scsi_cmd->format = format; 4396 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4397 /* The AGID is the top two bits of this byte */ 4398 scsi_cmd->agid = agid << 6; 4399 4400 cam_fill_csio(csio, 4401 retries, 4402 cbfcnp, 4403 /*flags*/ CAM_DIR_IN, 4404 tag_action, 4405 /*data_ptr*/ data_ptr, 4406 /*dxfer_len*/ dxfer_len, 4407 sense_len, 4408 sizeof(*scsi_cmd), 4409 timeout); 4410 } 4411