1 /*- 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /*- 29 * Portions of this driver taken from the original FreeBSD cd driver. 30 * Written by Julian Elischer (julian@tfs.com) 31 * for TRW Financial Systems for use under the MACH(2.5) operating system. 32 * 33 * TRW Financial Systems, in accordance with their agreement with Carnegie 34 * Mellon University, makes this software available to CMU to distribute 35 * or use in any manner that they see fit as long as this message is kept with 36 * the software. For this reason TFS also grants any other persons or 37 * organisations permission to use or modify this software. 38 * 39 * TFS supplies this software to be publicly redistributed 40 * on the understanding that TFS is not responsible for the correct 41 * functioning of this software in any circumstances. 42 * 43 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 44 * 45 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 46 */ 47 48 #include <sys/cdefs.h> 49 __FBSDID("$FreeBSD$"); 50 51 #include "opt_cd.h" 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/kernel.h> 56 #include <sys/bio.h> 57 #include <sys/conf.h> 58 #include <sys/disk.h> 59 #include <sys/malloc.h> 60 #include <sys/cdio.h> 61 #include <sys/cdrio.h> 62 #include <sys/dvdio.h> 63 #include <sys/devicestat.h> 64 #include <sys/sysctl.h> 65 #include <sys/taskqueue.h> 66 #include <geom/geom_disk.h> 67 68 #include <cam/cam.h> 69 #include <cam/cam_ccb.h> 70 #include <cam/cam_periph.h> 71 #include <cam/cam_xpt_periph.h> 72 #include <cam/cam_queue.h> 73 #include <cam/cam_sim.h> 74 75 #include <cam/scsi/scsi_message.h> 76 #include <cam/scsi/scsi_da.h> 77 #include <cam/scsi/scsi_cd.h> 78 79 #define LEADOUT 0xaa /* leadout toc entry */ 80 81 struct cd_params { 82 u_int32_t blksize; 83 u_long disksize; 84 }; 85 86 typedef enum { 87 CD_Q_NONE = 0x00, 88 CD_Q_NO_TOUCH = 0x01, 89 CD_Q_BCD_TRACKS = 0x02, 90 CD_Q_NO_CHANGER = 0x04, 91 CD_Q_CHANGER = 0x08, 92 CD_Q_10_BYTE_ONLY = 0x10 93 } cd_quirks; 94 95 typedef enum { 96 CD_FLAG_INVALID = 0x0001, 97 CD_FLAG_NEW_DISC = 0x0002, 98 CD_FLAG_DISC_LOCKED = 0x0004, 99 CD_FLAG_DISC_REMOVABLE = 0x0008, 100 CD_FLAG_SAW_MEDIA = 0x0010, 101 CD_FLAG_CHANGER = 0x0040, 102 CD_FLAG_ACTIVE = 0x0080, 103 CD_FLAG_SCHED_ON_COMP = 0x0100, 104 CD_FLAG_RETRY_UA = 0x0200, 105 CD_FLAG_VALID_MEDIA = 0x0400, 106 CD_FLAG_VALID_TOC = 0x0800, 107 CD_FLAG_SCTX_INIT = 0x1000 108 } cd_flags; 109 110 typedef enum { 111 CD_CCB_PROBE = 0x01, 112 CD_CCB_BUFFER_IO = 0x02, 113 CD_CCB_WAITING = 0x03, 114 CD_CCB_TUR = 0x04, 115 CD_CCB_TYPE_MASK = 0x0F, 116 CD_CCB_RETRY_UA = 0x10 117 } cd_ccb_state; 118 119 typedef enum { 120 CHANGER_TIMEOUT_SCHED = 0x01, 121 CHANGER_SHORT_TMOUT_SCHED = 0x02, 122 CHANGER_MANUAL_CALL = 0x04, 123 CHANGER_NEED_TIMEOUT = 0x08 124 } cd_changer_flags; 125 126 #define ccb_state ppriv_field0 127 #define ccb_bp ppriv_ptr1 128 129 struct cd_tocdata { 130 struct ioc_toc_header header; 131 struct cd_toc_entry entries[100]; 132 }; 133 134 struct cd_toc_single { 135 struct ioc_toc_header header; 136 struct cd_toc_entry entry; 137 }; 138 139 typedef enum { 140 CD_STATE_PROBE, 141 CD_STATE_NORMAL 142 } cd_state; 143 144 struct cd_softc { 145 cam_pinfo pinfo; 146 cd_state state; 147 volatile cd_flags flags; 148 struct bio_queue_head bio_queue; 149 LIST_HEAD(, ccb_hdr) pending_ccbs; 150 struct cd_params params; 151 union ccb saved_ccb; 152 cd_quirks quirks; 153 STAILQ_ENTRY(cd_softc) changer_links; 154 struct cdchanger *changer; 155 int bufs_left; 156 struct cam_periph *periph; 157 int minimum_command_size; 158 int outstanding_cmds; 159 int tur; 160 struct task sysctl_task; 161 struct sysctl_ctx_list sysctl_ctx; 162 struct sysctl_oid *sysctl_tree; 163 STAILQ_HEAD(, cd_mode_params) mode_queue; 164 struct cd_tocdata toc; 165 struct disk *disk; 166 struct callout mediapoll_c; 167 }; 168 169 struct cd_page_sizes { 170 int page; 171 int page_size; 172 }; 173 174 static struct cd_page_sizes cd_page_size_table[] = 175 { 176 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 177 }; 178 179 struct cd_quirk_entry { 180 struct scsi_inquiry_pattern inq_pat; 181 cd_quirks quirks; 182 }; 183 184 /* 185 * The changer quirk entries aren't strictly necessary. Basically, what 186 * they do is tell cdregister() up front that a device is a changer. 187 * Otherwise, it will figure that fact out once it sees a LUN on the device 188 * that is greater than 0. If it is known up front that a device is a changer, 189 * all I/O to the device will go through the changer scheduling routines, as 190 * opposed to the "normal" CD code. 191 * 192 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 193 * your device hangs when it gets a 10 byte command. Adding a quirk just 194 * to get rid of the informative diagnostic message is not acceptable. All 195 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 196 * referenced in a comment along with the quirk) , and must be approved by 197 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 198 * be removed until the submitter can explain why they are needed. 199 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 200 * when the CAM_NEW_TRAN_CODE work is done. 201 */ 202 static struct cd_quirk_entry cd_quirk_table[] = 203 { 204 { 205 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 206 /*quirks*/ CD_Q_CHANGER 207 }, 208 { 209 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 210 "*"}, /* quirks */ CD_Q_CHANGER 211 }, 212 { 213 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 214 /* quirks */ CD_Q_CHANGER 215 }, 216 { 217 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 218 /* quirks */ CD_Q_BCD_TRACKS 219 } 220 }; 221 222 static disk_open_t cdopen; 223 static disk_close_t cdclose; 224 static disk_ioctl_t cdioctl; 225 static disk_strategy_t cdstrategy; 226 227 static periph_init_t cdinit; 228 static periph_ctor_t cdregister; 229 static periph_dtor_t cdcleanup; 230 static periph_start_t cdstart; 231 static periph_oninv_t cdoninvalidate; 232 static void cdasync(void *callback_arg, u_int32_t code, 233 struct cam_path *path, void *arg); 234 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 235 static void cdshorttimeout(void *arg); 236 static void cdschedule(struct cam_periph *periph, int priority); 237 static void cdrunchangerqueue(void *arg); 238 static void cdchangerschedule(struct cd_softc *softc); 239 static int cdrunccb(union ccb *ccb, 240 int (*error_routine)(union ccb *ccb, 241 u_int32_t cam_flags, 242 u_int32_t sense_flags), 243 u_int32_t cam_flags, u_int32_t sense_flags); 244 static union ccb *cdgetccb(struct cam_periph *periph, 245 u_int32_t priority); 246 static void cddone(struct cam_periph *periph, 247 union ccb *start_ccb); 248 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 249 static int cdgetpagesize(int page_num); 250 static void cdprevent(struct cam_periph *periph, int action); 251 static int cdcheckmedia(struct cam_periph *periph); 252 static int cdsize(struct cam_periph *periph, u_int32_t *size); 253 static int cd6byteworkaround(union ccb *ccb); 254 static int cderror(union ccb *ccb, u_int32_t cam_flags, 255 u_int32_t sense_flags); 256 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 257 u_int32_t start, u_int8_t *data, 258 u_int32_t len, u_int32_t sense_flags); 259 static int cdgetmode(struct cam_periph *periph, 260 struct cd_mode_params *data, u_int32_t page); 261 static int cdsetmode(struct cam_periph *periph, 262 struct cd_mode_params *data); 263 static int cdplay(struct cam_periph *periph, u_int32_t blk, 264 u_int32_t len); 265 static int cdreadsubchannel(struct cam_periph *periph, 266 u_int32_t mode, u_int32_t format, 267 int track, 268 struct cd_sub_channel_info *data, 269 u_int32_t len); 270 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 271 u_int32_t starts, u_int32_t startf, 272 u_int32_t endm, u_int32_t ends, 273 u_int32_t endf); 274 static int cdplaytracks(struct cam_periph *periph, 275 u_int32_t strack, u_int32_t sindex, 276 u_int32_t etrack, u_int32_t eindex); 277 static int cdpause(struct cam_periph *periph, u_int32_t go); 278 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 279 static int cdstartunit(struct cam_periph *periph, int load); 280 static int cdsetspeed(struct cam_periph *periph, 281 u_int32_t rdspeed, u_int32_t wrspeed); 282 static int cdreportkey(struct cam_periph *periph, 283 struct dvd_authinfo *authinfo); 284 static int cdsendkey(struct cam_periph *periph, 285 struct dvd_authinfo *authinfo); 286 static int cdreaddvdstructure(struct cam_periph *periph, 287 struct dvd_struct *dvdstruct); 288 static timeout_t cdmediapoll; 289 290 static struct periph_driver cddriver = 291 { 292 cdinit, "cd", 293 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 294 }; 295 296 PERIPHDRIVER_DECLARE(cd, cddriver); 297 298 #ifndef CD_DEFAULT_POLL_PERIOD 299 #define CD_DEFAULT_POLL_PERIOD 3 300 #endif 301 #ifndef CD_DEFAULT_RETRY 302 #define CD_DEFAULT_RETRY 4 303 #endif 304 #ifndef CD_DEFAULT_TIMEOUT 305 #define CD_DEFAULT_TIMEOUT 30000 306 #endif 307 #ifndef CHANGER_MIN_BUSY_SECONDS 308 #define CHANGER_MIN_BUSY_SECONDS 5 309 #endif 310 #ifndef CHANGER_MAX_BUSY_SECONDS 311 #define CHANGER_MAX_BUSY_SECONDS 15 312 #endif 313 314 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD; 315 static int cd_retry_count = CD_DEFAULT_RETRY; 316 static int cd_timeout = CD_DEFAULT_TIMEOUT; 317 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 318 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 319 320 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 321 static SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, 322 "CD Changer"); 323 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RW, 324 &cd_poll_period, 0, "Media polling period in seconds"); 325 TUNABLE_INT("kern.cam.cd.poll_period", &cd_poll_period); 326 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, 327 &cd_retry_count, 0, "Normal I/O retry count"); 328 TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); 329 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RW, 330 &cd_timeout, 0, "Timeout, in us, for read operations"); 331 TUNABLE_INT("kern.cam.cd.timeout", &cd_timeout); 332 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 333 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 334 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 335 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 336 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 337 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 338 339 struct cdchanger { 340 path_id_t path_id; 341 target_id_t target_id; 342 int num_devices; 343 struct camq devq; 344 struct timeval start_time; 345 struct cd_softc *cur_device; 346 struct callout short_handle; 347 struct callout long_handle; 348 volatile cd_changer_flags flags; 349 STAILQ_ENTRY(cdchanger) changer_links; 350 STAILQ_HEAD(chdevlist, cd_softc) chluns; 351 }; 352 353 static struct mtx changerq_mtx; 354 static STAILQ_HEAD(changerlist, cdchanger) changerq; 355 static int num_changers; 356 357 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 358 359 static void 360 cdinit(void) 361 { 362 cam_status status; 363 364 mtx_init(&changerq_mtx, "cdchangerq", "SCSI CD Changer List", MTX_DEF); 365 STAILQ_INIT(&changerq); 366 367 /* 368 * Install a global async callback. This callback will 369 * receive async callbacks like "new device found". 370 */ 371 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 372 373 if (status != CAM_REQ_CMP) { 374 printf("cd: Failed to attach master async callback " 375 "due to status 0x%x!\n", status); 376 } 377 } 378 379 /* 380 * Callback from GEOM, called when it has finished cleaning up its 381 * resources. 382 */ 383 static void 384 cddiskgonecb(struct disk *dp) 385 { 386 struct cam_periph *periph; 387 388 periph = (struct cam_periph *)dp->d_drv1; 389 390 cam_periph_release(periph); 391 } 392 393 static void 394 cdoninvalidate(struct cam_periph *periph) 395 { 396 struct cd_softc *softc; 397 398 softc = (struct cd_softc *)periph->softc; 399 400 /* 401 * De-register any async callbacks. 402 */ 403 xpt_register_async(0, cdasync, periph, periph->path); 404 405 softc->flags |= CD_FLAG_INVALID; 406 407 /* 408 * Return all queued I/O with ENXIO. 409 * XXX Handle any transactions queued to the card 410 * with XPT_ABORT_CCB. 411 */ 412 bioq_flush(&softc->bio_queue, NULL, ENXIO); 413 414 /* 415 * If this device is part of a changer, and it was scheduled 416 * to run, remove it from the run queue since we just nuked 417 * all of its scheduled I/O. 418 */ 419 if ((softc->flags & CD_FLAG_CHANGER) 420 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 421 camq_remove(&softc->changer->devq, softc->pinfo.index); 422 423 disk_gone(softc->disk); 424 xpt_print(periph->path, "lost device, %d refs\n", periph->refcount); 425 } 426 427 static void 428 cdcleanup(struct cam_periph *periph) 429 { 430 struct cd_softc *softc; 431 432 softc = (struct cd_softc *)periph->softc; 433 434 xpt_print(periph->path, "removing device entry\n"); 435 436 /* 437 * In the queued, non-active case, the device in question 438 * has already been removed from the changer run queue. Since this 439 * device is active, we need to de-activate it, and schedule 440 * another device to run. (if there is another one to run) 441 */ 442 if ((softc->flags & CD_FLAG_CHANGER) 443 && (softc->flags & CD_FLAG_ACTIVE)) { 444 445 /* 446 * The purpose of the short timeout is soley to determine 447 * whether the current device has finished or not. Well, 448 * since we're removing the active device, we know that it 449 * is finished. So, get rid of the short timeout. 450 * Otherwise, if we're in the time period before the short 451 * timeout fires, and there are no other devices in the 452 * queue to run, there won't be any other device put in the 453 * active slot. i.e., when we call cdrunchangerqueue() 454 * below, it won't do anything. Then, when the short 455 * timeout fires, it'll look at the "current device", which 456 * we are free below, and possibly panic the kernel on a 457 * bogus pointer reference. 458 * 459 * The long timeout doesn't really matter, since we 460 * decrement the qfrozen_cnt to indicate that there is 461 * nothing in the active slot now. Therefore, there won't 462 * be any bogus pointer references there. 463 */ 464 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 465 callout_stop(&softc->changer->short_handle); 466 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 467 } 468 softc->changer->devq.qfrozen_cnt[0]--; 469 softc->changer->flags |= CHANGER_MANUAL_CALL; 470 cdrunchangerqueue(softc->changer); 471 } 472 473 /* 474 * If we're removing the last device on the changer, go ahead and 475 * remove the changer device structure. 476 */ 477 if ((softc->flags & CD_FLAG_CHANGER) 478 && (--softc->changer->num_devices == 0)) { 479 480 /* 481 * Theoretically, there shouldn't be any timeouts left, but 482 * I'm not completely sure that that will be the case. So, 483 * it won't hurt to check and see if there are any left. 484 */ 485 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 486 callout_stop(&softc->changer->long_handle); 487 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 488 } 489 490 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 491 callout_stop(&softc->changer->short_handle); 492 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 493 } 494 495 mtx_lock(&changerq_mtx); 496 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 497 changer_links); 498 num_changers--; 499 mtx_unlock(&changerq_mtx); 500 xpt_print(periph->path, "removing changer entry\n"); 501 free(softc->changer, M_DEVBUF); 502 } 503 cam_periph_unlock(periph); 504 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 505 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 506 xpt_print(periph->path, "can't remove sysctl context\n"); 507 } 508 509 callout_drain(&softc->mediapoll_c); 510 disk_destroy(softc->disk); 511 free(softc, M_DEVBUF); 512 cam_periph_lock(periph); 513 } 514 515 static void 516 cdasync(void *callback_arg, u_int32_t code, 517 struct cam_path *path, void *arg) 518 { 519 struct cam_periph *periph; 520 struct cd_softc *softc; 521 522 periph = (struct cam_periph *)callback_arg; 523 switch (code) { 524 case AC_FOUND_DEVICE: 525 { 526 struct ccb_getdev *cgd; 527 cam_status status; 528 529 cgd = (struct ccb_getdev *)arg; 530 if (cgd == NULL) 531 break; 532 533 if (cgd->protocol != PROTO_SCSI) 534 break; 535 536 if (SID_TYPE(&cgd->inq_data) != T_CDROM 537 && SID_TYPE(&cgd->inq_data) != T_WORM) 538 break; 539 540 /* 541 * Allocate a peripheral instance for 542 * this device and start the probe 543 * process. 544 */ 545 status = cam_periph_alloc(cdregister, cdoninvalidate, 546 cdcleanup, cdstart, 547 "cd", CAM_PERIPH_BIO, 548 cgd->ccb_h.path, cdasync, 549 AC_FOUND_DEVICE, cgd); 550 551 if (status != CAM_REQ_CMP 552 && status != CAM_REQ_INPROG) 553 printf("cdasync: Unable to attach new device " 554 "due to status 0x%x\n", status); 555 556 break; 557 } 558 case AC_UNIT_ATTENTION: 559 { 560 union ccb *ccb; 561 int error_code, sense_key, asc, ascq; 562 563 softc = (struct cd_softc *)periph->softc; 564 ccb = (union ccb *)arg; 565 566 /* 567 * Handle all media change UNIT ATTENTIONs except 568 * our own, as they will be handled by cderror(). 569 */ 570 if (xpt_path_periph(ccb->ccb_h.path) != periph && 571 scsi_extract_sense_ccb(ccb, 572 &error_code, &sense_key, &asc, &ascq)) { 573 if (asc == 0x28 && ascq == 0x00) 574 disk_media_changed(softc->disk, M_NOWAIT); 575 } 576 cam_periph_async(periph, code, path, arg); 577 break; 578 } 579 case AC_SCSI_AEN: 580 softc = (struct cd_softc *)periph->softc; 581 if (softc->state == CD_STATE_NORMAL && !softc->tur) { 582 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 583 softc->tur = 1; 584 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 585 } 586 } 587 /* FALLTHROUGH */ 588 case AC_SENT_BDR: 589 case AC_BUS_RESET: 590 { 591 struct ccb_hdr *ccbh; 592 593 softc = (struct cd_softc *)periph->softc; 594 /* 595 * Don't fail on the expected unit attention 596 * that will occur. 597 */ 598 softc->flags |= CD_FLAG_RETRY_UA; 599 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 600 ccbh->ccb_state |= CD_CCB_RETRY_UA; 601 /* FALLTHROUGH */ 602 } 603 default: 604 cam_periph_async(periph, code, path, arg); 605 break; 606 } 607 } 608 609 static void 610 cdsysctlinit(void *context, int pending) 611 { 612 struct cam_periph *periph; 613 struct cd_softc *softc; 614 char tmpstr[80], tmpstr2[80]; 615 616 periph = (struct cam_periph *)context; 617 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 618 return; 619 620 softc = (struct cd_softc *)periph->softc; 621 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 622 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 623 624 sysctl_ctx_init(&softc->sysctl_ctx); 625 softc->flags |= CD_FLAG_SCTX_INIT; 626 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 627 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 628 tmpstr2, CTLFLAG_RD, 0, tmpstr); 629 630 if (softc->sysctl_tree == NULL) { 631 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 632 cam_periph_release(periph); 633 return; 634 } 635 636 /* 637 * Now register the sysctl handler, so the user can the value on 638 * the fly. 639 */ 640 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 641 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 642 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 643 "Minimum CDB size"); 644 645 cam_periph_release(periph); 646 } 647 648 /* 649 * We have a handler function for this so we can check the values when the 650 * user sets them, instead of every time we look at them. 651 */ 652 static int 653 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 654 { 655 int error, value; 656 657 value = *(int *)arg1; 658 659 error = sysctl_handle_int(oidp, &value, 0, req); 660 661 if ((error != 0) 662 || (req->newptr == NULL)) 663 return (error); 664 665 /* 666 * The only real values we can have here are 6 or 10. I don't 667 * really forsee having 12 be an option at any time in the future. 668 * So if the user sets something less than or equal to 6, we'll set 669 * it to 6. If he sets something greater than 6, we'll set it to 10. 670 * 671 * I suppose we could just return an error here for the wrong values, 672 * but I don't think it's necessary to do so, as long as we can 673 * determine the user's intent without too much trouble. 674 */ 675 if (value < 6) 676 value = 6; 677 else if (value > 6) 678 value = 10; 679 680 *(int *)arg1 = value; 681 682 return (0); 683 } 684 685 static cam_status 686 cdregister(struct cam_periph *periph, void *arg) 687 { 688 struct cd_softc *softc; 689 struct ccb_pathinq cpi; 690 struct ccb_getdev *cgd; 691 char tmpstr[80]; 692 caddr_t match; 693 694 cgd = (struct ccb_getdev *)arg; 695 if (cgd == NULL) { 696 printf("cdregister: no getdev CCB, can't register device\n"); 697 return(CAM_REQ_CMP_ERR); 698 } 699 700 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF, 701 M_NOWAIT | M_ZERO); 702 if (softc == NULL) { 703 printf("cdregister: Unable to probe new device. " 704 "Unable to allocate softc\n"); 705 return(CAM_REQ_CMP_ERR); 706 } 707 708 LIST_INIT(&softc->pending_ccbs); 709 STAILQ_INIT(&softc->mode_queue); 710 softc->state = CD_STATE_PROBE; 711 bioq_init(&softc->bio_queue); 712 if (SID_IS_REMOVABLE(&cgd->inq_data)) 713 softc->flags |= CD_FLAG_DISC_REMOVABLE; 714 715 periph->softc = softc; 716 softc->periph = periph; 717 718 /* 719 * See if this device has any quirks. 720 */ 721 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 722 (caddr_t)cd_quirk_table, 723 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 724 sizeof(*cd_quirk_table), scsi_inquiry_match); 725 726 if (match != NULL) 727 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 728 else 729 softc->quirks = CD_Q_NONE; 730 731 /* Check if the SIM does not want 6 byte commands */ 732 bzero(&cpi, sizeof(cpi)); 733 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 734 cpi.ccb_h.func_code = XPT_PATH_INQ; 735 xpt_action((union ccb *)&cpi); 736 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 737 softc->quirks |= CD_Q_10_BYTE_ONLY; 738 739 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 740 741 /* The default is 6 byte commands, unless quirked otherwise */ 742 if (softc->quirks & CD_Q_10_BYTE_ONLY) 743 softc->minimum_command_size = 10; 744 else 745 softc->minimum_command_size = 6; 746 747 /* 748 * Refcount and block open attempts until we are setup 749 * Can't block 750 */ 751 (void)cam_periph_hold(periph, PRIBIO); 752 cam_periph_unlock(periph); 753 /* 754 * Load the user's default, if any. 755 */ 756 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 757 periph->unit_number); 758 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 759 760 /* 6 and 10 are the only permissible values here. */ 761 if (softc->minimum_command_size < 6) 762 softc->minimum_command_size = 6; 763 else if (softc->minimum_command_size > 6) 764 softc->minimum_command_size = 10; 765 766 /* 767 * We need to register the statistics structure for this device, 768 * but we don't have the blocksize yet for it. So, we register 769 * the structure and indicate that we don't have the blocksize 770 * yet. Unlike other SCSI peripheral drivers, we explicitly set 771 * the device type here to be CDROM, rather than just ORing in 772 * the device type. This is because this driver can attach to either 773 * CDROM or WORM devices, and we want this peripheral driver to 774 * show up in the devstat list as a CD peripheral driver, not a 775 * WORM peripheral driver. WORM drives will also have the WORM 776 * driver attached to them. 777 */ 778 softc->disk = disk_alloc(); 779 softc->disk->d_devstat = devstat_new_entry("cd", 780 periph->unit_number, 0, 781 DEVSTAT_BS_UNAVAILABLE, 782 DEVSTAT_TYPE_CDROM | 783 XPORT_DEVSTAT_TYPE(cpi.transport), 784 DEVSTAT_PRIORITY_CD); 785 softc->disk->d_open = cdopen; 786 softc->disk->d_close = cdclose; 787 softc->disk->d_strategy = cdstrategy; 788 softc->disk->d_gone = cddiskgonecb; 789 softc->disk->d_ioctl = cdioctl; 790 softc->disk->d_name = "cd"; 791 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 792 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 793 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 794 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 795 cgd->inq_data.product, sizeof(cgd->inq_data.product), 796 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 797 softc->disk->d_unit = periph->unit_number; 798 softc->disk->d_drv1 = periph; 799 if (cpi.maxio == 0) 800 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 801 else if (cpi.maxio > MAXPHYS) 802 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 803 else 804 softc->disk->d_maxsize = cpi.maxio; 805 softc->disk->d_flags = 0; 806 softc->disk->d_hba_vendor = cpi.hba_vendor; 807 softc->disk->d_hba_device = cpi.hba_device; 808 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 809 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 810 811 /* 812 * Acquire a reference to the periph before we register with GEOM. 813 * We'll release this reference once GEOM calls us back (via 814 * dadiskgonecb()) telling us that our provider has been freed. 815 */ 816 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 817 xpt_print(periph->path, "%s: lost periph during " 818 "registration!\n", __func__); 819 cam_periph_lock(periph); 820 return (CAM_REQ_CMP_ERR); 821 } 822 823 disk_create(softc->disk, DISK_VERSION); 824 cam_periph_lock(periph); 825 826 /* 827 * Add an async callback so that we get 828 * notified if this device goes away. 829 */ 830 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 831 AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path); 832 833 /* 834 * If the target lun is greater than 0, we most likely have a CD 835 * changer device. Check the quirk entries as well, though, just 836 * in case someone has a CD tower with one lun per drive or 837 * something like that. Also, if we know up front that a 838 * particular device is a changer, we can mark it as such starting 839 * with lun 0, instead of lun 1. It shouldn't be necessary to have 840 * a quirk entry to define something as a changer, however. 841 */ 842 if (((cgd->ccb_h.target_lun > 0) 843 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 844 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 845 struct cdchanger *nchanger; 846 struct cam_periph *nperiph; 847 struct cam_path *path; 848 cam_status status; 849 int found; 850 851 /* Set the changer flag in the current device's softc */ 852 softc->flags |= CD_FLAG_CHANGER; 853 854 /* 855 * Now, look around for an existing changer device with the 856 * same path and target ID as the current device. 857 */ 858 mtx_lock(&changerq_mtx); 859 for (found = 0, 860 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 861 nchanger != NULL; 862 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 863 if ((nchanger->path_id == cgd->ccb_h.path_id) 864 && (nchanger->target_id == cgd->ccb_h.target_id)) { 865 found = 1; 866 break; 867 } 868 } 869 mtx_unlock(&changerq_mtx); 870 871 /* 872 * If we found a matching entry, just add this device to 873 * the list of devices on this changer. 874 */ 875 if (found == 1) { 876 struct chdevlist *chlunhead; 877 878 chlunhead = &nchanger->chluns; 879 880 /* 881 * XXX KDM look at consolidating this code with the 882 * code below in a separate function. 883 */ 884 885 /* 886 * Create a path with lun id 0, and see if we can 887 * find a matching device 888 */ 889 status = xpt_create_path(&path, /*periph*/ periph, 890 cgd->ccb_h.path_id, 891 cgd->ccb_h.target_id, 0); 892 893 if ((status == CAM_REQ_CMP) 894 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 895 struct cd_softc *nsoftc; 896 897 nsoftc = (struct cd_softc *)nperiph->softc; 898 899 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 900 nsoftc->flags |= CD_FLAG_CHANGER; 901 nchanger->num_devices++; 902 if (camq_resize(&nchanger->devq, 903 nchanger->num_devices)!=CAM_REQ_CMP){ 904 printf("cdregister: " 905 "camq_resize " 906 "failed, changer " 907 "support may " 908 "be messed up\n"); 909 } 910 nsoftc->changer = nchanger; 911 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 912 913 STAILQ_INSERT_TAIL(&nchanger->chluns, 914 nsoftc,changer_links); 915 } 916 xpt_free_path(path); 917 } else if (status == CAM_REQ_CMP) 918 xpt_free_path(path); 919 else { 920 printf("cdregister: unable to allocate path\n" 921 "cdregister: changer support may be " 922 "broken\n"); 923 } 924 925 nchanger->num_devices++; 926 927 softc->changer = nchanger; 928 softc->pinfo.index = CAM_UNQUEUED_INDEX; 929 930 if (camq_resize(&nchanger->devq, 931 nchanger->num_devices) != CAM_REQ_CMP) { 932 printf("cdregister: camq_resize " 933 "failed, changer support may " 934 "be messed up\n"); 935 } 936 937 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 938 } 939 /* 940 * In this case, we don't already have an entry for this 941 * particular changer, so we need to create one, add it to 942 * the queue, and queue this device on the list for this 943 * changer. Before we queue this device, however, we need 944 * to search for lun id 0 on this target, and add it to the 945 * queue first, if it exists. (and if it hasn't already 946 * been marked as part of the changer.) 947 */ 948 else { 949 nchanger = malloc(sizeof(struct cdchanger), 950 M_DEVBUF, M_NOWAIT | M_ZERO); 951 if (nchanger == NULL) { 952 softc->flags &= ~CD_FLAG_CHANGER; 953 printf("cdregister: unable to malloc " 954 "changer structure\ncdregister: " 955 "changer support disabled\n"); 956 957 /* 958 * Yes, gotos can be gross but in this case 959 * I think it's justified.. 960 */ 961 goto cdregisterexit; 962 } 963 if (camq_init(&nchanger->devq, 1) != 0) { 964 softc->flags &= ~CD_FLAG_CHANGER; 965 printf("cdregister: changer support " 966 "disabled\n"); 967 goto cdregisterexit; 968 } 969 970 nchanger->path_id = cgd->ccb_h.path_id; 971 nchanger->target_id = cgd->ccb_h.target_id; 972 973 /* this is superfluous, but it makes things clearer */ 974 nchanger->num_devices = 0; 975 976 STAILQ_INIT(&nchanger->chluns); 977 978 callout_init_mtx(&nchanger->long_handle, 979 periph->sim->mtx, 0); 980 callout_init_mtx(&nchanger->short_handle, 981 periph->sim->mtx, 0); 982 983 mtx_lock(&changerq_mtx); 984 num_changers++; 985 STAILQ_INSERT_TAIL(&changerq, nchanger, 986 changer_links); 987 mtx_unlock(&changerq_mtx); 988 989 /* 990 * Create a path with lun id 0, and see if we can 991 * find a matching device 992 */ 993 status = xpt_create_path(&path, /*periph*/ periph, 994 cgd->ccb_h.path_id, 995 cgd->ccb_h.target_id, 0); 996 997 /* 998 * If we were able to allocate the path, and if we 999 * find a matching device and it isn't already 1000 * marked as part of a changer, then we add it to 1001 * the current changer. 1002 */ 1003 if ((status == CAM_REQ_CMP) 1004 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 1005 && ((((struct cd_softc *)periph->softc)->flags & 1006 CD_FLAG_CHANGER) == 0)) { 1007 struct cd_softc *nsoftc; 1008 1009 nsoftc = (struct cd_softc *)nperiph->softc; 1010 1011 nsoftc->flags |= CD_FLAG_CHANGER; 1012 nchanger->num_devices++; 1013 if (camq_resize(&nchanger->devq, 1014 nchanger->num_devices) != CAM_REQ_CMP) { 1015 printf("cdregister: camq_resize " 1016 "failed, changer support may " 1017 "be messed up\n"); 1018 } 1019 nsoftc->changer = nchanger; 1020 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 1021 1022 STAILQ_INSERT_TAIL(&nchanger->chluns, 1023 nsoftc, changer_links); 1024 xpt_free_path(path); 1025 } else if (status == CAM_REQ_CMP) 1026 xpt_free_path(path); 1027 else { 1028 printf("cdregister: unable to allocate path\n" 1029 "cdregister: changer support may be " 1030 "broken\n"); 1031 } 1032 1033 softc->changer = nchanger; 1034 softc->pinfo.index = CAM_UNQUEUED_INDEX; 1035 nchanger->num_devices++; 1036 if (camq_resize(&nchanger->devq, 1037 nchanger->num_devices) != CAM_REQ_CMP) { 1038 printf("cdregister: camq_resize " 1039 "failed, changer support may " 1040 "be messed up\n"); 1041 } 1042 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 1043 changer_links); 1044 } 1045 } 1046 1047 /* 1048 * Schedule a periodic media polling events. 1049 */ 1050 callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0); 1051 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) && 1052 (softc->flags & CD_FLAG_CHANGER) == 0 && 1053 (cgd->inq_flags & SID_AEN) == 0 && 1054 cd_poll_period != 0) 1055 callout_reset(&softc->mediapoll_c, cd_poll_period * hz, 1056 cdmediapoll, periph); 1057 1058 cdregisterexit: 1059 1060 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1061 xpt_schedule(periph, CAM_PRIORITY_DEV); 1062 else 1063 cdschedule(periph, CAM_PRIORITY_DEV); 1064 1065 return(CAM_REQ_CMP); 1066 } 1067 1068 static int 1069 cdopen(struct disk *dp) 1070 { 1071 struct cam_periph *periph; 1072 struct cd_softc *softc; 1073 int error; 1074 1075 periph = (struct cam_periph *)dp->d_drv1; 1076 if (periph == NULL) 1077 return (ENXIO); 1078 1079 softc = (struct cd_softc *)periph->softc; 1080 1081 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1082 return(ENXIO); 1083 1084 cam_periph_lock(periph); 1085 1086 if (softc->flags & CD_FLAG_INVALID) { 1087 cam_periph_release_locked(periph); 1088 cam_periph_unlock(periph); 1089 return(ENXIO); 1090 } 1091 1092 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1093 cam_periph_release_locked(periph); 1094 cam_periph_unlock(periph); 1095 return (error); 1096 } 1097 1098 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1099 ("cdopen\n")); 1100 1101 /* 1102 * Check for media, and set the appropriate flags. We don't bail 1103 * if we don't have media, but then we don't allow anything but the 1104 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1105 */ 1106 cdcheckmedia(periph); 1107 1108 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1109 cam_periph_unhold(periph); 1110 1111 cam_periph_unlock(periph); 1112 1113 return (0); 1114 } 1115 1116 static int 1117 cdclose(struct disk *dp) 1118 { 1119 struct cam_periph *periph; 1120 struct cd_softc *softc; 1121 1122 periph = (struct cam_periph *)dp->d_drv1; 1123 if (periph == NULL) 1124 return (ENXIO); 1125 1126 softc = (struct cd_softc *)periph->softc; 1127 1128 cam_periph_lock(periph); 1129 if (cam_periph_hold(periph, PRIBIO) != 0) { 1130 cam_periph_unlock(periph); 1131 cam_periph_release(periph); 1132 return (0); 1133 } 1134 1135 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 1136 ("cdclose\n")); 1137 1138 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1139 cdprevent(periph, PR_ALLOW); 1140 1141 /* 1142 * Since we're closing this CD, mark the blocksize as unavailable. 1143 * It will be marked as available when the CD is opened again. 1144 */ 1145 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1146 1147 /* 1148 * We'll check the media and toc again at the next open(). 1149 */ 1150 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1151 1152 cam_periph_unhold(periph); 1153 cam_periph_release_locked(periph); 1154 cam_periph_unlock(periph); 1155 1156 return (0); 1157 } 1158 1159 static void 1160 cdshorttimeout(void *arg) 1161 { 1162 struct cdchanger *changer; 1163 1164 changer = (struct cdchanger *)arg; 1165 1166 /* Always clear the short timeout flag, since that's what we're in */ 1167 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1168 1169 /* 1170 * Check to see if there is any more pending or outstanding I/O for 1171 * this device. If not, move it out of the active slot. 1172 */ 1173 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1174 && (changer->cur_device->outstanding_cmds == 0)) { 1175 changer->flags |= CHANGER_MANUAL_CALL; 1176 cdrunchangerqueue(changer); 1177 } 1178 } 1179 1180 /* 1181 * This is a wrapper for xpt_schedule. It only applies to changers. 1182 */ 1183 static void 1184 cdschedule(struct cam_periph *periph, int priority) 1185 { 1186 struct cd_softc *softc; 1187 1188 softc = (struct cd_softc *)periph->softc; 1189 1190 /* 1191 * If this device isn't currently queued, and if it isn't 1192 * the active device, then we queue this device and run the 1193 * changer queue if there is no timeout scheduled to do it. 1194 * If this device is the active device, just schedule it 1195 * to run again. If this device is queued, there should be 1196 * a timeout in place already that will make sure it runs. 1197 */ 1198 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1199 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1200 /* 1201 * We don't do anything with the priority here. 1202 * This is strictly a fifo queue. 1203 */ 1204 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1205 softc->pinfo.generation = ++softc->changer->devq.generation; 1206 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1207 1208 /* 1209 * Since we just put a device in the changer queue, 1210 * check and see if there is a timeout scheduled for 1211 * this changer. If so, let the timeout handle 1212 * switching this device into the active slot. If 1213 * not, manually call the timeout routine to 1214 * bootstrap things. 1215 */ 1216 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1217 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1218 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1219 softc->changer->flags |= CHANGER_MANUAL_CALL; 1220 cdrunchangerqueue(softc->changer); 1221 } 1222 } else if ((softc->flags & CD_FLAG_ACTIVE) 1223 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1224 xpt_schedule(periph, priority); 1225 } 1226 1227 static void 1228 cdrunchangerqueue(void *arg) 1229 { 1230 struct cd_softc *softc; 1231 struct cdchanger *changer; 1232 int called_from_timeout; 1233 1234 changer = (struct cdchanger *)arg; 1235 1236 /* 1237 * If we have NOT been called from cdstrategy() or cddone(), and 1238 * instead from a timeout routine, go ahead and clear the 1239 * timeout flag. 1240 */ 1241 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1242 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1243 called_from_timeout = 1; 1244 } else 1245 called_from_timeout = 0; 1246 1247 /* Always clear the manual call flag */ 1248 changer->flags &= ~CHANGER_MANUAL_CALL; 1249 1250 /* nothing to do if the queue is empty */ 1251 if (changer->devq.entries <= 0) { 1252 return; 1253 } 1254 1255 /* 1256 * If the changer queue is frozen, that means we have an active 1257 * device. 1258 */ 1259 if (changer->devq.qfrozen_cnt[0] > 0) { 1260 1261 /* 1262 * We always need to reset the frozen count and clear the 1263 * active flag. 1264 */ 1265 changer->devq.qfrozen_cnt[0]--; 1266 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1267 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1268 1269 if (changer->cur_device->outstanding_cmds > 0) { 1270 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1271 changer->cur_device->bufs_left = 1272 changer->cur_device->outstanding_cmds; 1273 if (called_from_timeout) { 1274 callout_reset(&changer->long_handle, 1275 changer_max_busy_seconds * hz, 1276 cdrunchangerqueue, changer); 1277 changer->flags |= CHANGER_TIMEOUT_SCHED; 1278 } 1279 return; 1280 } 1281 1282 /* 1283 * Check to see whether the current device has any I/O left 1284 * to do. If so, requeue it at the end of the queue. If 1285 * not, there is no need to requeue it. 1286 */ 1287 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1288 1289 changer->cur_device->pinfo.generation = 1290 ++changer->devq.generation; 1291 camq_insert(&changer->devq, 1292 (cam_pinfo *)changer->cur_device); 1293 } 1294 } 1295 1296 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1297 1298 changer->cur_device = softc; 1299 1300 changer->devq.qfrozen_cnt[0]++; 1301 softc->flags |= CD_FLAG_ACTIVE; 1302 1303 /* Just in case this device is waiting */ 1304 wakeup(&softc->changer); 1305 xpt_schedule(softc->periph, CAM_PRIORITY_NORMAL); 1306 1307 /* 1308 * Get rid of any pending timeouts, and set a flag to schedule new 1309 * ones so this device gets its full time quantum. 1310 */ 1311 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1312 callout_stop(&changer->long_handle); 1313 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1314 } 1315 1316 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1317 callout_stop(&changer->short_handle); 1318 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1319 } 1320 1321 /* 1322 * We need to schedule timeouts, but we only do this after the 1323 * first transaction has completed. This eliminates the changer 1324 * switch time. 1325 */ 1326 changer->flags |= CHANGER_NEED_TIMEOUT; 1327 } 1328 1329 static void 1330 cdchangerschedule(struct cd_softc *softc) 1331 { 1332 struct cdchanger *changer; 1333 1334 changer = softc->changer; 1335 1336 /* 1337 * If this is a changer, and this is the current device, 1338 * and this device has at least the minimum time quantum to 1339 * run, see if we can switch it out. 1340 */ 1341 if ((softc->flags & CD_FLAG_ACTIVE) 1342 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1343 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1344 /* 1345 * We try three things here. The first is that we 1346 * check to see whether the schedule on completion 1347 * flag is set. If it is, we decrement the number 1348 * of buffers left, and if it's zero, we reschedule. 1349 * Next, we check to see whether the pending buffer 1350 * queue is empty and whether there are no 1351 * outstanding transactions. If so, we reschedule. 1352 * Next, we see if the pending buffer queue is empty. 1353 * If it is, we set the number of buffers left to 1354 * the current active buffer count and set the 1355 * schedule on complete flag. 1356 */ 1357 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1358 if (--softc->bufs_left == 0) { 1359 softc->changer->flags |= 1360 CHANGER_MANUAL_CALL; 1361 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1362 cdrunchangerqueue(softc->changer); 1363 } 1364 } else if ((bioq_first(&softc->bio_queue) == NULL) 1365 && (softc->outstanding_cmds == 0)) { 1366 softc->changer->flags |= CHANGER_MANUAL_CALL; 1367 cdrunchangerqueue(softc->changer); 1368 } 1369 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1370 && (softc->flags & CD_FLAG_ACTIVE)) { 1371 1372 /* 1373 * Now that the first transaction to this 1374 * particular device has completed, we can go ahead 1375 * and schedule our timeouts. 1376 */ 1377 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1378 callout_reset(&changer->long_handle, 1379 changer_max_busy_seconds * hz, 1380 cdrunchangerqueue, changer); 1381 changer->flags |= CHANGER_TIMEOUT_SCHED; 1382 } else 1383 printf("cdchangerschedule: already have a long" 1384 " timeout!\n"); 1385 1386 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1387 callout_reset(&changer->short_handle, 1388 changer_min_busy_seconds * hz, 1389 cdshorttimeout, changer); 1390 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1391 } else 1392 printf("cdchangerschedule: already have a short " 1393 "timeout!\n"); 1394 1395 /* 1396 * We just scheduled timeouts, no need to schedule 1397 * more. 1398 */ 1399 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1400 1401 } 1402 } 1403 1404 static int 1405 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1406 u_int32_t cam_flags, 1407 u_int32_t sense_flags), 1408 u_int32_t cam_flags, u_int32_t sense_flags) 1409 { 1410 struct cd_softc *softc; 1411 struct cam_periph *periph; 1412 int error; 1413 1414 periph = xpt_path_periph(ccb->ccb_h.path); 1415 softc = (struct cd_softc *)periph->softc; 1416 1417 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1418 softc->disk->d_devstat); 1419 1420 if (softc->flags & CD_FLAG_CHANGER) 1421 cdchangerschedule(softc); 1422 1423 return(error); 1424 } 1425 1426 static union ccb * 1427 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1428 { 1429 struct cd_softc *softc; 1430 1431 softc = (struct cd_softc *)periph->softc; 1432 1433 if (softc->flags & CD_FLAG_CHANGER) { 1434 /* 1435 * This should work the first time this device is woken up, 1436 * but just in case it doesn't, we use a while loop. 1437 */ 1438 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1439 /* 1440 * If this changer isn't already queued, queue it up. 1441 */ 1442 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1443 softc->pinfo.priority = CAM_PRIORITY_NORMAL; 1444 softc->pinfo.generation = 1445 ++softc->changer->devq.generation; 1446 camq_insert(&softc->changer->devq, 1447 (cam_pinfo *)softc); 1448 } 1449 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1450 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1451 && ((softc->changer->flags 1452 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1453 softc->changer->flags |= CHANGER_MANUAL_CALL; 1454 cdrunchangerqueue(softc->changer); 1455 } else 1456 msleep(&softc->changer, periph->sim->mtx, 1457 PRIBIO, "cgticb", 0); 1458 } 1459 } 1460 return(cam_periph_getccb(periph, priority)); 1461 } 1462 1463 1464 /* 1465 * Actually translate the requested transfer into one the physical driver 1466 * can understand. The transfer is described by a buf and will include 1467 * only one physical transfer. 1468 */ 1469 static void 1470 cdstrategy(struct bio *bp) 1471 { 1472 struct cam_periph *periph; 1473 struct cd_softc *softc; 1474 1475 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1476 if (periph == NULL) { 1477 biofinish(bp, NULL, ENXIO); 1478 return; 1479 } 1480 1481 cam_periph_lock(periph); 1482 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1483 ("cdstrategy(%p)\n", bp)); 1484 1485 softc = (struct cd_softc *)periph->softc; 1486 1487 /* 1488 * If the device has been made invalid, error out 1489 */ 1490 if ((softc->flags & CD_FLAG_INVALID)) { 1491 cam_periph_unlock(periph); 1492 biofinish(bp, NULL, ENXIO); 1493 return; 1494 } 1495 1496 /* 1497 * If we don't have valid media, look for it before trying to 1498 * schedule the I/O. 1499 */ 1500 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1501 int error; 1502 1503 error = cdcheckmedia(periph); 1504 if (error != 0) { 1505 cam_periph_unlock(periph); 1506 biofinish(bp, NULL, error); 1507 return; 1508 } 1509 } 1510 1511 /* 1512 * Place it in the queue of disk activities for this disk 1513 */ 1514 bioq_disksort(&softc->bio_queue, bp); 1515 1516 /* 1517 * Schedule ourselves for performing the work. We do things 1518 * differently for changers. 1519 */ 1520 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1521 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1522 else 1523 cdschedule(periph, CAM_PRIORITY_NORMAL); 1524 1525 cam_periph_unlock(periph); 1526 return; 1527 } 1528 1529 static void 1530 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1531 { 1532 struct cd_softc *softc; 1533 struct bio *bp; 1534 struct ccb_scsiio *csio; 1535 struct scsi_read_capacity_data *rcap; 1536 1537 softc = (struct cd_softc *)periph->softc; 1538 1539 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1540 1541 switch (softc->state) { 1542 case CD_STATE_NORMAL: 1543 { 1544 bp = bioq_first(&softc->bio_queue); 1545 if (periph->immediate_priority <= periph->pinfo.priority) { 1546 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1547 1548 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1549 periph_links.sle); 1550 periph->immediate_priority = CAM_PRIORITY_NONE; 1551 wakeup(&periph->ccb_list); 1552 } else if (bp == NULL) { 1553 if (softc->tur) { 1554 softc->tur = 0; 1555 csio = &start_ccb->csio; 1556 scsi_test_unit_ready(csio, 1557 /*retries*/ cd_retry_count, 1558 cddone, 1559 MSG_SIMPLE_Q_TAG, 1560 SSD_FULL_SIZE, 1561 cd_timeout); 1562 start_ccb->ccb_h.ccb_bp = NULL; 1563 start_ccb->ccb_h.ccb_state = CD_CCB_TUR; 1564 xpt_action(start_ccb); 1565 } else 1566 xpt_release_ccb(start_ccb); 1567 } else { 1568 if (softc->tur) { 1569 softc->tur = 0; 1570 cam_periph_release_locked(periph); 1571 } 1572 bioq_remove(&softc->bio_queue, bp); 1573 1574 scsi_read_write(&start_ccb->csio, 1575 /*retries*/ cd_retry_count, 1576 /* cbfcnp */ cddone, 1577 MSG_SIMPLE_Q_TAG, 1578 /* read */bp->bio_cmd == BIO_READ ? 1579 SCSI_RW_READ : SCSI_RW_WRITE, 1580 /* byte2 */ 0, 1581 /* minimum_cmd_size */ 10, 1582 /* lba */ bp->bio_offset / 1583 softc->params.blksize, 1584 bp->bio_bcount / softc->params.blksize, 1585 /* data_ptr */ bp->bio_data, 1586 /* dxfer_len */ bp->bio_bcount, 1587 /* sense_len */ cd_retry_count ? 1588 SSD_FULL_SIZE : SF_NO_PRINT, 1589 /* timeout */ cd_timeout); 1590 /* Use READ CD command for audio tracks. */ 1591 if (softc->params.blksize == 2352) { 1592 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD; 1593 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8; 1594 start_ccb->csio.cdb_io.cdb_bytes[10] = 0; 1595 start_ccb->csio.cdb_io.cdb_bytes[11] = 0; 1596 start_ccb->csio.cdb_len = 12; 1597 } 1598 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1599 1600 1601 LIST_INSERT_HEAD(&softc->pending_ccbs, 1602 &start_ccb->ccb_h, periph_links.le); 1603 softc->outstanding_cmds++; 1604 1605 /* We expect a unit attention from this device */ 1606 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1607 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1608 softc->flags &= ~CD_FLAG_RETRY_UA; 1609 } 1610 1611 start_ccb->ccb_h.ccb_bp = bp; 1612 bp = bioq_first(&softc->bio_queue); 1613 1614 xpt_action(start_ccb); 1615 } 1616 if (bp != NULL || softc->tur || 1617 periph->immediate_priority != CAM_PRIORITY_NONE) { 1618 /* Have more work to do, so ensure we stay scheduled */ 1619 xpt_schedule(periph, min(CAM_PRIORITY_NORMAL, 1620 periph->immediate_priority)); 1621 } 1622 break; 1623 } 1624 case CD_STATE_PROBE: 1625 { 1626 1627 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1628 M_SCSICD, M_NOWAIT | M_ZERO); 1629 if (rcap == NULL) { 1630 xpt_print(periph->path, 1631 "cdstart: Couldn't malloc read_capacity data\n"); 1632 /* cd_free_periph??? */ 1633 break; 1634 } 1635 csio = &start_ccb->csio; 1636 scsi_read_capacity(csio, 1637 /*retries*/ cd_retry_count, 1638 cddone, 1639 MSG_SIMPLE_Q_TAG, 1640 rcap, 1641 SSD_FULL_SIZE, 1642 /*timeout*/20000); 1643 start_ccb->ccb_h.ccb_bp = NULL; 1644 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1645 xpt_action(start_ccb); 1646 break; 1647 } 1648 } 1649 } 1650 1651 static void 1652 cddone(struct cam_periph *periph, union ccb *done_ccb) 1653 { 1654 struct cd_softc *softc; 1655 struct ccb_scsiio *csio; 1656 1657 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1658 1659 softc = (struct cd_softc *)periph->softc; 1660 csio = &done_ccb->csio; 1661 1662 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1663 case CD_CCB_BUFFER_IO: 1664 { 1665 struct bio *bp; 1666 int error; 1667 1668 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1669 error = 0; 1670 1671 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1672 int sf; 1673 1674 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1675 sf = SF_RETRY_UA; 1676 else 1677 sf = 0; 1678 1679 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1680 if (error == ERESTART) { 1681 /* 1682 * A retry was scheuled, so 1683 * just return. 1684 */ 1685 return; 1686 } 1687 } 1688 1689 if (error != 0) { 1690 xpt_print(periph->path, 1691 "cddone: got error %#x back\n", error); 1692 bioq_flush(&softc->bio_queue, NULL, EIO); 1693 bp->bio_resid = bp->bio_bcount; 1694 bp->bio_error = error; 1695 bp->bio_flags |= BIO_ERROR; 1696 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1697 cam_release_devq(done_ccb->ccb_h.path, 1698 /*relsim_flags*/0, 1699 /*reduction*/0, 1700 /*timeout*/0, 1701 /*getcount_only*/0); 1702 1703 } else { 1704 bp->bio_resid = csio->resid; 1705 bp->bio_error = 0; 1706 if (bp->bio_resid != 0) { 1707 /* 1708 * Short transfer ??? 1709 * XXX: not sure this is correct for partial 1710 * transfers at EOM 1711 */ 1712 bp->bio_flags |= BIO_ERROR; 1713 } 1714 } 1715 1716 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1717 softc->outstanding_cmds--; 1718 1719 if (softc->flags & CD_FLAG_CHANGER) 1720 cdchangerschedule(softc); 1721 1722 biofinish(bp, NULL, 0); 1723 break; 1724 } 1725 case CD_CCB_PROBE: 1726 { 1727 struct scsi_read_capacity_data *rdcap; 1728 char announce_buf[120]; /* 1729 * Currently (9/30/97) the 1730 * longest possible announce 1731 * buffer is 108 bytes, for the 1732 * first error case below. 1733 * That is 39 bytes for the 1734 * basic string, 16 bytes for the 1735 * biggest sense key (hardware 1736 * error), 52 bytes for the 1737 * text of the largest sense 1738 * qualifier valid for a CDROM, 1739 * (0x72, 0x03 or 0x04, 1740 * 0x03), and one byte for the 1741 * null terminating character. 1742 * To allow for longer strings, 1743 * the announce buffer is 120 1744 * bytes. 1745 */ 1746 struct cd_params *cdp; 1747 int error; 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 /* 1757 * Retry any UNIT ATTENTION type errors. They 1758 * are expected at boot. 1759 */ 1760 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP || 1761 (error = cderror(done_ccb, CAM_RETRY_SELTO, 1762 SF_RETRY_UA | SF_NO_PRINT)) == 0) { 1763 1764 snprintf(announce_buf, sizeof(announce_buf), 1765 "cd present [%lu x %lu byte records]", 1766 cdp->disksize, (u_long)cdp->blksize); 1767 1768 } else { 1769 if (error == ERESTART) { 1770 /* 1771 * A retry was scheuled, so 1772 * just return. 1773 */ 1774 return; 1775 } else { 1776 int asc, ascq; 1777 int sense_key, error_code; 1778 int have_sense; 1779 cam_status status; 1780 struct ccb_getdev cgd; 1781 1782 /* Don't wedge this device's queue */ 1783 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1784 cam_release_devq(done_ccb->ccb_h.path, 1785 /*relsim_flags*/0, 1786 /*reduction*/0, 1787 /*timeout*/0, 1788 /*getcount_only*/0); 1789 1790 status = done_ccb->ccb_h.status; 1791 1792 xpt_setup_ccb(&cgd.ccb_h, 1793 done_ccb->ccb_h.path, 1794 CAM_PRIORITY_NORMAL); 1795 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1796 xpt_action((union ccb *)&cgd); 1797 1798 if (scsi_extract_sense_ccb(done_ccb, 1799 &error_code, &sense_key, &asc, &ascq)) 1800 have_sense = TRUE; 1801 else 1802 have_sense = FALSE; 1803 1804 /* 1805 * Attach to anything that claims to be a 1806 * CDROM or WORM device, as long as it 1807 * doesn't return a "Logical unit not 1808 * supported" (0x25) error. 1809 */ 1810 if ((have_sense) && (asc != 0x25) 1811 && (error_code == SSD_CURRENT_ERROR)) { 1812 const char *sense_key_desc; 1813 const char *asc_desc; 1814 1815 scsi_sense_desc(sense_key, asc, ascq, 1816 &cgd.inq_data, 1817 &sense_key_desc, 1818 &asc_desc); 1819 snprintf(announce_buf, 1820 sizeof(announce_buf), 1821 "Attempt to query device " 1822 "size failed: %s, %s", 1823 sense_key_desc, 1824 asc_desc); 1825 } else if ((have_sense == 0) 1826 && ((status & CAM_STATUS_MASK) == 1827 CAM_SCSI_STATUS_ERROR) 1828 && (csio->scsi_status == 1829 SCSI_STATUS_BUSY)) { 1830 snprintf(announce_buf, 1831 sizeof(announce_buf), 1832 "Attempt to query device " 1833 "size failed: SCSI Status: %s", 1834 scsi_status_string(csio)); 1835 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1836 /* 1837 * We only print out an error for 1838 * CDROM type devices. For WORM 1839 * devices, we don't print out an 1840 * error since a few WORM devices 1841 * don't support CDROM commands. 1842 * If we have sense information, go 1843 * ahead and print it out. 1844 * Otherwise, just say that we 1845 * couldn't attach. 1846 */ 1847 1848 /* 1849 * Just print out the error, not 1850 * the full probe message, when we 1851 * don't attach. 1852 */ 1853 if (have_sense) 1854 scsi_sense_print( 1855 &done_ccb->csio); 1856 else { 1857 xpt_print(periph->path, 1858 "got CAM status %#x\n", 1859 done_ccb->ccb_h.status); 1860 } 1861 xpt_print(periph->path, "fatal error, " 1862 "failed to attach to device\n"); 1863 /* 1864 * Invalidate this peripheral. 1865 */ 1866 cam_periph_invalidate(periph); 1867 1868 announce_buf[0] = '\0'; 1869 } else { 1870 1871 /* 1872 * Invalidate this peripheral. 1873 */ 1874 cam_periph_invalidate(periph); 1875 announce_buf[0] = '\0'; 1876 } 1877 } 1878 } 1879 free(rdcap, M_SCSICD); 1880 if (announce_buf[0] != '\0') { 1881 xpt_announce_periph(periph, announce_buf); 1882 if (softc->flags & CD_FLAG_CHANGER) 1883 cdchangerschedule(softc); 1884 /* 1885 * Create our sysctl variables, now that we know 1886 * we have successfully attached. 1887 */ 1888 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1889 } 1890 softc->state = CD_STATE_NORMAL; 1891 /* 1892 * Since our peripheral may be invalidated by an error 1893 * above or an external event, we must release our CCB 1894 * before releasing the probe lock on the peripheral. 1895 * The peripheral will only go away once the last lock 1896 * is removed, and we need it around for the CCB release 1897 * operation. 1898 */ 1899 xpt_release_ccb(done_ccb); 1900 cam_periph_unhold(periph); 1901 return; 1902 } 1903 case CD_CCB_WAITING: 1904 { 1905 /* Caller will release the CCB */ 1906 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1907 ("trying to wakeup ccbwait\n")); 1908 1909 wakeup(&done_ccb->ccb_h.cbfcnp); 1910 return; 1911 } 1912 case CD_CCB_TUR: 1913 { 1914 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1915 1916 if (cderror(done_ccb, CAM_RETRY_SELTO, 1917 SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) == 1918 ERESTART) 1919 return; 1920 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1921 cam_release_devq(done_ccb->ccb_h.path, 1922 /*relsim_flags*/0, 1923 /*reduction*/0, 1924 /*timeout*/0, 1925 /*getcount_only*/0); 1926 } 1927 xpt_release_ccb(done_ccb); 1928 cam_periph_release_locked(periph); 1929 return; 1930 } 1931 default: 1932 break; 1933 } 1934 xpt_release_ccb(done_ccb); 1935 } 1936 1937 static union cd_pages * 1938 cdgetpage(struct cd_mode_params *mode_params) 1939 { 1940 union cd_pages *page; 1941 1942 if (mode_params->cdb_size == 10) 1943 page = (union cd_pages *)find_mode_page_10( 1944 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1945 else 1946 page = (union cd_pages *)find_mode_page_6( 1947 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1948 1949 return (page); 1950 } 1951 1952 static int 1953 cdgetpagesize(int page_num) 1954 { 1955 int i; 1956 1957 for (i = 0; i < (sizeof(cd_page_size_table)/ 1958 sizeof(cd_page_size_table[0])); i++) { 1959 if (cd_page_size_table[i].page == page_num) 1960 return (cd_page_size_table[i].page_size); 1961 } 1962 1963 return (-1); 1964 } 1965 1966 static int 1967 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1968 { 1969 1970 struct cam_periph *periph; 1971 struct cd_softc *softc; 1972 int nocopyout, error = 0; 1973 1974 periph = (struct cam_periph *)dp->d_drv1; 1975 if (periph == NULL) 1976 return(ENXIO); 1977 1978 cam_periph_lock(periph); 1979 1980 softc = (struct cd_softc *)periph->softc; 1981 1982 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1983 ("cdioctl(%#lx)\n", cmd)); 1984 1985 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 1986 cam_periph_unlock(periph); 1987 cam_periph_release(periph); 1988 return (error); 1989 } 1990 1991 /* 1992 * If we don't have media loaded, check for it. If still don't 1993 * have media loaded, we can only do a load or eject. 1994 * 1995 * We only care whether media is loaded if this is a cd-specific ioctl 1996 * (thus the IOCGROUP check below). Note that this will break if 1997 * anyone adds any ioctls into the switch statement below that don't 1998 * have their ioctl group set to 'c'. 1999 */ 2000 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 2001 && ((cmd != CDIOCCLOSE) 2002 && (cmd != CDIOCEJECT)) 2003 && (IOCGROUP(cmd) == 'c')) { 2004 error = cdcheckmedia(periph); 2005 if (error != 0) { 2006 cam_periph_unhold(periph); 2007 cam_periph_unlock(periph); 2008 return (error); 2009 } 2010 } 2011 /* 2012 * Drop the lock here so later mallocs can use WAITOK. The periph 2013 * is essentially locked still with the cam_periph_hold call above. 2014 */ 2015 cam_periph_unlock(periph); 2016 2017 nocopyout = 0; 2018 switch (cmd) { 2019 2020 case CDIOCPLAYTRACKS: 2021 { 2022 struct ioc_play_track *args 2023 = (struct ioc_play_track *) addr; 2024 struct cd_mode_params params; 2025 union cd_pages *page; 2026 2027 params.alloc_len = sizeof(union cd_mode_data_6_10); 2028 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2029 M_WAITOK | M_ZERO); 2030 2031 cam_periph_lock(periph); 2032 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2033 ("trying to do CDIOCPLAYTRACKS\n")); 2034 2035 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2036 if (error) { 2037 free(params.mode_buf, M_SCSICD); 2038 cam_periph_unlock(periph); 2039 break; 2040 } 2041 page = cdgetpage(¶ms); 2042 2043 page->audio.flags &= ~CD_PA_SOTC; 2044 page->audio.flags |= CD_PA_IMMED; 2045 error = cdsetmode(periph, ¶ms); 2046 free(params.mode_buf, M_SCSICD); 2047 if (error) { 2048 cam_periph_unlock(periph); 2049 break; 2050 } 2051 2052 /* 2053 * This was originally implemented with the PLAY 2054 * AUDIO TRACK INDEX command, but that command was 2055 * deprecated after SCSI-2. Most (all?) SCSI CDROM 2056 * drives support it but ATAPI and ATAPI-derivative 2057 * drives don't seem to support it. So we keep a 2058 * cache of the table of contents and translate 2059 * track numbers to MSF format. 2060 */ 2061 if (softc->flags & CD_FLAG_VALID_TOC) { 2062 union msf_lba *sentry, *eentry; 2063 int st, et; 2064 2065 if (args->end_track < 2066 softc->toc.header.ending_track + 1) 2067 args->end_track++; 2068 if (args->end_track > 2069 softc->toc.header.ending_track + 1) 2070 args->end_track = 2071 softc->toc.header.ending_track + 1; 2072 st = args->start_track - 2073 softc->toc.header.starting_track; 2074 et = args->end_track - 2075 softc->toc.header.starting_track; 2076 if ((st < 0) 2077 || (et < 0) 2078 || (st > (softc->toc.header.ending_track - 2079 softc->toc.header.starting_track))) { 2080 error = EINVAL; 2081 cam_periph_unlock(periph); 2082 break; 2083 } 2084 sentry = &softc->toc.entries[st].addr; 2085 eentry = &softc->toc.entries[et].addr; 2086 error = cdplaymsf(periph, 2087 sentry->msf.minute, 2088 sentry->msf.second, 2089 sentry->msf.frame, 2090 eentry->msf.minute, 2091 eentry->msf.second, 2092 eentry->msf.frame); 2093 } else { 2094 /* 2095 * If we don't have a valid TOC, try the 2096 * play track index command. It is part of 2097 * the SCSI-2 spec, but was removed in the 2098 * MMC specs. ATAPI and ATAPI-derived 2099 * drives don't support it. 2100 */ 2101 if (softc->quirks & CD_Q_BCD_TRACKS) { 2102 args->start_track = 2103 bin2bcd(args->start_track); 2104 args->end_track = 2105 bin2bcd(args->end_track); 2106 } 2107 error = cdplaytracks(periph, 2108 args->start_track, 2109 args->start_index, 2110 args->end_track, 2111 args->end_index); 2112 } 2113 cam_periph_unlock(periph); 2114 } 2115 break; 2116 case CDIOCPLAYMSF: 2117 { 2118 struct ioc_play_msf *args 2119 = (struct ioc_play_msf *) addr; 2120 struct cd_mode_params params; 2121 union cd_pages *page; 2122 2123 params.alloc_len = sizeof(union cd_mode_data_6_10); 2124 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2125 M_WAITOK | M_ZERO); 2126 2127 cam_periph_lock(periph); 2128 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2129 ("trying to do CDIOCPLAYMSF\n")); 2130 2131 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2132 if (error) { 2133 free(params.mode_buf, M_SCSICD); 2134 cam_periph_unlock(periph); 2135 break; 2136 } 2137 page = cdgetpage(¶ms); 2138 2139 page->audio.flags &= ~CD_PA_SOTC; 2140 page->audio.flags |= CD_PA_IMMED; 2141 error = cdsetmode(periph, ¶ms); 2142 free(params.mode_buf, M_SCSICD); 2143 if (error) { 2144 cam_periph_unlock(periph); 2145 break; 2146 } 2147 error = cdplaymsf(periph, 2148 args->start_m, 2149 args->start_s, 2150 args->start_f, 2151 args->end_m, 2152 args->end_s, 2153 args->end_f); 2154 cam_periph_unlock(periph); 2155 } 2156 break; 2157 case CDIOCPLAYBLOCKS: 2158 { 2159 struct ioc_play_blocks *args 2160 = (struct ioc_play_blocks *) addr; 2161 struct cd_mode_params params; 2162 union cd_pages *page; 2163 2164 params.alloc_len = sizeof(union cd_mode_data_6_10); 2165 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2166 M_WAITOK | M_ZERO); 2167 2168 cam_periph_lock(periph); 2169 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2170 ("trying to do CDIOCPLAYBLOCKS\n")); 2171 2172 2173 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2174 if (error) { 2175 free(params.mode_buf, M_SCSICD); 2176 cam_periph_unlock(periph); 2177 break; 2178 } 2179 page = cdgetpage(¶ms); 2180 2181 page->audio.flags &= ~CD_PA_SOTC; 2182 page->audio.flags |= CD_PA_IMMED; 2183 error = cdsetmode(periph, ¶ms); 2184 free(params.mode_buf, M_SCSICD); 2185 if (error) { 2186 cam_periph_unlock(periph); 2187 break; 2188 } 2189 error = cdplay(periph, args->blk, args->len); 2190 cam_periph_unlock(periph); 2191 } 2192 break; 2193 case CDIOCREADSUBCHANNEL_SYSSPACE: 2194 nocopyout = 1; 2195 /* Fallthrough */ 2196 case CDIOCREADSUBCHANNEL: 2197 { 2198 struct ioc_read_subchannel *args 2199 = (struct ioc_read_subchannel *) addr; 2200 struct cd_sub_channel_info *data; 2201 u_int32_t len = args->data_len; 2202 2203 data = malloc(sizeof(struct cd_sub_channel_info), 2204 M_SCSICD, M_WAITOK | M_ZERO); 2205 2206 cam_periph_lock(periph); 2207 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2208 ("trying to do CDIOCREADSUBCHANNEL\n")); 2209 2210 if ((len > sizeof(struct cd_sub_channel_info)) || 2211 (len < sizeof(struct cd_sub_channel_header))) { 2212 printf( 2213 "scsi_cd: cdioctl: " 2214 "cdioreadsubchannel: error, len=%d\n", 2215 len); 2216 error = EINVAL; 2217 free(data, M_SCSICD); 2218 cam_periph_unlock(periph); 2219 break; 2220 } 2221 2222 if (softc->quirks & CD_Q_BCD_TRACKS) 2223 args->track = bin2bcd(args->track); 2224 2225 error = cdreadsubchannel(periph, args->address_format, 2226 args->data_format, args->track, data, len); 2227 2228 if (error) { 2229 free(data, M_SCSICD); 2230 cam_periph_unlock(periph); 2231 break; 2232 } 2233 if (softc->quirks & CD_Q_BCD_TRACKS) 2234 data->what.track_info.track_number = 2235 bcd2bin(data->what.track_info.track_number); 2236 len = min(len, ((data->header.data_len[0] << 8) + 2237 data->header.data_len[1] + 2238 sizeof(struct cd_sub_channel_header))); 2239 cam_periph_unlock(periph); 2240 if (nocopyout == 0) { 2241 if (copyout(data, args->data, len) != 0) { 2242 error = EFAULT; 2243 } 2244 } else { 2245 bcopy(data, args->data, len); 2246 } 2247 free(data, M_SCSICD); 2248 } 2249 break; 2250 2251 case CDIOREADTOCHEADER: 2252 { 2253 struct ioc_toc_header *th; 2254 2255 th = malloc(sizeof(struct ioc_toc_header), M_SCSICD, 2256 M_WAITOK | M_ZERO); 2257 2258 cam_periph_lock(periph); 2259 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2260 ("trying to do CDIOREADTOCHEADER\n")); 2261 2262 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2263 sizeof (*th), /*sense_flags*/SF_NO_PRINT); 2264 if (error) { 2265 free(th, M_SCSICD); 2266 cam_periph_unlock(periph); 2267 break; 2268 } 2269 if (softc->quirks & CD_Q_BCD_TRACKS) { 2270 /* we are going to have to convert the BCD 2271 * encoding on the cd to what is expected 2272 */ 2273 th->starting_track = 2274 bcd2bin(th->starting_track); 2275 th->ending_track = bcd2bin(th->ending_track); 2276 } 2277 th->len = ntohs(th->len); 2278 bcopy(th, addr, sizeof(*th)); 2279 free(th, M_SCSICD); 2280 cam_periph_unlock(periph); 2281 } 2282 break; 2283 case CDIOREADTOCENTRYS: 2284 { 2285 struct cd_tocdata *data; 2286 struct cd_toc_single *lead; 2287 struct ioc_read_toc_entry *te = 2288 (struct ioc_read_toc_entry *) addr; 2289 struct ioc_toc_header *th; 2290 u_int32_t len, readlen, idx, num; 2291 u_int32_t starting_track = te->starting_track; 2292 2293 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2294 lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO); 2295 2296 cam_periph_lock(periph); 2297 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2298 ("trying to do CDIOREADTOCENTRYS\n")); 2299 2300 if (te->data_len < sizeof(struct cd_toc_entry) 2301 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2302 || (te->address_format != CD_MSF_FORMAT 2303 && te->address_format != CD_LBA_FORMAT)) { 2304 error = EINVAL; 2305 printf("scsi_cd: error in readtocentries, " 2306 "returning EINVAL\n"); 2307 free(data, M_SCSICD); 2308 free(lead, M_SCSICD); 2309 cam_periph_unlock(periph); 2310 break; 2311 } 2312 2313 th = &data->header; 2314 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2315 sizeof (*th), /*sense_flags*/0); 2316 if (error) { 2317 free(data, M_SCSICD); 2318 free(lead, M_SCSICD); 2319 cam_periph_unlock(periph); 2320 break; 2321 } 2322 2323 if (softc->quirks & CD_Q_BCD_TRACKS) { 2324 /* we are going to have to convert the BCD 2325 * encoding on the cd to what is expected 2326 */ 2327 th->starting_track = 2328 bcd2bin(th->starting_track); 2329 th->ending_track = bcd2bin(th->ending_track); 2330 } 2331 2332 if (starting_track == 0) 2333 starting_track = th->starting_track; 2334 else if (starting_track == LEADOUT) 2335 starting_track = th->ending_track + 1; 2336 else if (starting_track < th->starting_track || 2337 starting_track > th->ending_track + 1) { 2338 printf("scsi_cd: error in readtocentries, " 2339 "returning EINVAL\n"); 2340 free(data, M_SCSICD); 2341 free(lead, M_SCSICD); 2342 cam_periph_unlock(periph); 2343 error = EINVAL; 2344 break; 2345 } 2346 2347 /* calculate reading length without leadout entry */ 2348 readlen = (th->ending_track - starting_track + 1) * 2349 sizeof(struct cd_toc_entry); 2350 2351 /* and with leadout entry */ 2352 len = readlen + sizeof(struct cd_toc_entry); 2353 if (te->data_len < len) { 2354 len = te->data_len; 2355 if (readlen > len) 2356 readlen = len; 2357 } 2358 if (len > sizeof(data->entries)) { 2359 printf("scsi_cd: error in readtocentries, " 2360 "returning EINVAL\n"); 2361 error = EINVAL; 2362 free(data, M_SCSICD); 2363 free(lead, M_SCSICD); 2364 cam_periph_unlock(periph); 2365 break; 2366 } 2367 num = len / sizeof(struct cd_toc_entry); 2368 2369 if (readlen > 0) { 2370 error = cdreadtoc(periph, te->address_format, 2371 starting_track, 2372 (u_int8_t *)data, 2373 readlen + sizeof (*th), 2374 /*sense_flags*/0); 2375 if (error) { 2376 free(data, M_SCSICD); 2377 free(lead, M_SCSICD); 2378 cam_periph_unlock(periph); 2379 break; 2380 } 2381 } 2382 2383 /* make leadout entry if needed */ 2384 idx = starting_track + num - 1; 2385 if (softc->quirks & CD_Q_BCD_TRACKS) 2386 th->ending_track = bcd2bin(th->ending_track); 2387 if (idx == th->ending_track + 1) { 2388 error = cdreadtoc(periph, te->address_format, 2389 LEADOUT, (u_int8_t *)lead, 2390 sizeof(*lead), 2391 /*sense_flags*/0); 2392 if (error) { 2393 free(data, M_SCSICD); 2394 free(lead, M_SCSICD); 2395 cam_periph_unlock(periph); 2396 break; 2397 } 2398 data->entries[idx - starting_track] = 2399 lead->entry; 2400 } 2401 if (softc->quirks & CD_Q_BCD_TRACKS) { 2402 for (idx = 0; idx < num - 1; idx++) { 2403 data->entries[idx].track = 2404 bcd2bin(data->entries[idx].track); 2405 } 2406 } 2407 2408 cam_periph_unlock(periph); 2409 error = copyout(data->entries, te->data, len); 2410 free(data, M_SCSICD); 2411 free(lead, M_SCSICD); 2412 } 2413 break; 2414 case CDIOREADTOCENTRY: 2415 { 2416 struct cd_toc_single *data; 2417 struct ioc_read_toc_single_entry *te = 2418 (struct ioc_read_toc_single_entry *) addr; 2419 struct ioc_toc_header *th; 2420 u_int32_t track; 2421 2422 data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO); 2423 2424 cam_periph_lock(periph); 2425 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2426 ("trying to do CDIOREADTOCENTRY\n")); 2427 2428 if (te->address_format != CD_MSF_FORMAT 2429 && te->address_format != CD_LBA_FORMAT) { 2430 printf("error in readtocentry, " 2431 " returning EINVAL\n"); 2432 free(data, M_SCSICD); 2433 error = EINVAL; 2434 cam_periph_unlock(periph); 2435 break; 2436 } 2437 2438 th = &data->header; 2439 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2440 sizeof (*th), /*sense_flags*/0); 2441 if (error) { 2442 free(data, M_SCSICD); 2443 cam_periph_unlock(periph); 2444 break; 2445 } 2446 2447 if (softc->quirks & CD_Q_BCD_TRACKS) { 2448 /* we are going to have to convert the BCD 2449 * encoding on the cd to what is expected 2450 */ 2451 th->starting_track = 2452 bcd2bin(th->starting_track); 2453 th->ending_track = bcd2bin(th->ending_track); 2454 } 2455 track = te->track; 2456 if (track == 0) 2457 track = th->starting_track; 2458 else if (track == LEADOUT) 2459 /* OK */; 2460 else if (track < th->starting_track || 2461 track > th->ending_track + 1) { 2462 printf("error in readtocentry, " 2463 " returning EINVAL\n"); 2464 free(data, M_SCSICD); 2465 error = EINVAL; 2466 cam_periph_unlock(periph); 2467 break; 2468 } 2469 2470 error = cdreadtoc(periph, te->address_format, track, 2471 (u_int8_t *)data, sizeof(*data), 2472 /*sense_flags*/0); 2473 if (error) { 2474 free(data, M_SCSICD); 2475 cam_periph_unlock(periph); 2476 break; 2477 } 2478 2479 if (softc->quirks & CD_Q_BCD_TRACKS) 2480 data->entry.track = bcd2bin(data->entry.track); 2481 bcopy(&data->entry, &te->entry, 2482 sizeof(struct cd_toc_entry)); 2483 free(data, M_SCSICD); 2484 cam_periph_unlock(periph); 2485 } 2486 break; 2487 case CDIOCSETPATCH: 2488 { 2489 struct ioc_patch *arg = (struct ioc_patch *)addr; 2490 struct cd_mode_params params; 2491 union cd_pages *page; 2492 2493 params.alloc_len = sizeof(union cd_mode_data_6_10); 2494 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2495 M_WAITOK | M_ZERO); 2496 2497 cam_periph_lock(periph); 2498 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2499 ("trying to do CDIOCSETPATCH\n")); 2500 2501 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2502 if (error) { 2503 free(params.mode_buf, M_SCSICD); 2504 cam_periph_unlock(periph); 2505 break; 2506 } 2507 page = cdgetpage(¶ms); 2508 2509 page->audio.port[LEFT_PORT].channels = 2510 arg->patch[0]; 2511 page->audio.port[RIGHT_PORT].channels = 2512 arg->patch[1]; 2513 page->audio.port[2].channels = arg->patch[2]; 2514 page->audio.port[3].channels = arg->patch[3]; 2515 error = cdsetmode(periph, ¶ms); 2516 free(params.mode_buf, M_SCSICD); 2517 cam_periph_unlock(periph); 2518 } 2519 break; 2520 case CDIOCGETVOL: 2521 { 2522 struct ioc_vol *arg = (struct ioc_vol *) addr; 2523 struct cd_mode_params params; 2524 union cd_pages *page; 2525 2526 params.alloc_len = sizeof(union cd_mode_data_6_10); 2527 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2528 M_WAITOK | M_ZERO); 2529 2530 cam_periph_lock(periph); 2531 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2532 ("trying to do CDIOCGETVOL\n")); 2533 2534 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2535 if (error) { 2536 free(params.mode_buf, M_SCSICD); 2537 cam_periph_unlock(periph); 2538 break; 2539 } 2540 page = cdgetpage(¶ms); 2541 2542 arg->vol[LEFT_PORT] = 2543 page->audio.port[LEFT_PORT].volume; 2544 arg->vol[RIGHT_PORT] = 2545 page->audio.port[RIGHT_PORT].volume; 2546 arg->vol[2] = page->audio.port[2].volume; 2547 arg->vol[3] = page->audio.port[3].volume; 2548 free(params.mode_buf, M_SCSICD); 2549 cam_periph_unlock(periph); 2550 } 2551 break; 2552 case CDIOCSETVOL: 2553 { 2554 struct ioc_vol *arg = (struct ioc_vol *) addr; 2555 struct cd_mode_params params; 2556 union cd_pages *page; 2557 2558 params.alloc_len = sizeof(union cd_mode_data_6_10); 2559 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2560 M_WAITOK | M_ZERO); 2561 2562 cam_periph_lock(periph); 2563 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2564 ("trying to do CDIOCSETVOL\n")); 2565 2566 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2567 if (error) { 2568 free(params.mode_buf, M_SCSICD); 2569 cam_periph_unlock(periph); 2570 break; 2571 } 2572 page = cdgetpage(¶ms); 2573 2574 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2575 page->audio.port[LEFT_PORT].volume = 2576 arg->vol[LEFT_PORT]; 2577 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2578 page->audio.port[RIGHT_PORT].volume = 2579 arg->vol[RIGHT_PORT]; 2580 page->audio.port[2].volume = arg->vol[2]; 2581 page->audio.port[3].volume = arg->vol[3]; 2582 error = cdsetmode(periph, ¶ms); 2583 cam_periph_unlock(periph); 2584 free(params.mode_buf, M_SCSICD); 2585 } 2586 break; 2587 case CDIOCSETMONO: 2588 { 2589 struct cd_mode_params params; 2590 union cd_pages *page; 2591 2592 params.alloc_len = sizeof(union cd_mode_data_6_10); 2593 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2594 M_WAITOK | M_ZERO); 2595 2596 cam_periph_lock(periph); 2597 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2598 ("trying to do CDIOCSETMONO\n")); 2599 2600 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2601 if (error) { 2602 free(params.mode_buf, M_SCSICD); 2603 cam_periph_unlock(periph); 2604 break; 2605 } 2606 page = cdgetpage(¶ms); 2607 2608 page->audio.port[LEFT_PORT].channels = 2609 LEFT_CHANNEL | RIGHT_CHANNEL; 2610 page->audio.port[RIGHT_PORT].channels = 2611 LEFT_CHANNEL | RIGHT_CHANNEL; 2612 page->audio.port[2].channels = 0; 2613 page->audio.port[3].channels = 0; 2614 error = cdsetmode(periph, ¶ms); 2615 cam_periph_unlock(periph); 2616 free(params.mode_buf, M_SCSICD); 2617 } 2618 break; 2619 case CDIOCSETSTEREO: 2620 { 2621 struct cd_mode_params params; 2622 union cd_pages *page; 2623 2624 params.alloc_len = sizeof(union cd_mode_data_6_10); 2625 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2626 M_WAITOK | M_ZERO); 2627 2628 cam_periph_lock(periph); 2629 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2630 ("trying to do CDIOCSETSTEREO\n")); 2631 2632 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2633 if (error) { 2634 free(params.mode_buf, M_SCSICD); 2635 cam_periph_unlock(periph); 2636 break; 2637 } 2638 page = cdgetpage(¶ms); 2639 2640 page->audio.port[LEFT_PORT].channels = 2641 LEFT_CHANNEL; 2642 page->audio.port[RIGHT_PORT].channels = 2643 RIGHT_CHANNEL; 2644 page->audio.port[2].channels = 0; 2645 page->audio.port[3].channels = 0; 2646 error = cdsetmode(periph, ¶ms); 2647 free(params.mode_buf, M_SCSICD); 2648 cam_periph_unlock(periph); 2649 } 2650 break; 2651 case CDIOCSETMUTE: 2652 { 2653 struct cd_mode_params params; 2654 union cd_pages *page; 2655 2656 params.alloc_len = sizeof(union cd_mode_data_6_10); 2657 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2658 M_WAITOK | M_ZERO); 2659 2660 cam_periph_lock(periph); 2661 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2662 ("trying to do CDIOCSETMUTE\n")); 2663 2664 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2665 if (error) { 2666 free(params.mode_buf, M_SCSICD); 2667 cam_periph_unlock(periph); 2668 break; 2669 } 2670 page = cdgetpage(¶ms); 2671 2672 page->audio.port[LEFT_PORT].channels = 0; 2673 page->audio.port[RIGHT_PORT].channels = 0; 2674 page->audio.port[2].channels = 0; 2675 page->audio.port[3].channels = 0; 2676 error = cdsetmode(periph, ¶ms); 2677 free(params.mode_buf, M_SCSICD); 2678 cam_periph_unlock(periph); 2679 } 2680 break; 2681 case CDIOCSETLEFT: 2682 { 2683 struct cd_mode_params params; 2684 union cd_pages *page; 2685 2686 params.alloc_len = sizeof(union cd_mode_data_6_10); 2687 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2688 M_WAITOK | M_ZERO); 2689 2690 cam_periph_lock(periph); 2691 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2692 ("trying to do CDIOCSETLEFT\n")); 2693 2694 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2695 if (error) { 2696 free(params.mode_buf, M_SCSICD); 2697 cam_periph_unlock(periph); 2698 break; 2699 } 2700 page = cdgetpage(¶ms); 2701 2702 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2703 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2704 page->audio.port[2].channels = 0; 2705 page->audio.port[3].channels = 0; 2706 error = cdsetmode(periph, ¶ms); 2707 free(params.mode_buf, M_SCSICD); 2708 cam_periph_unlock(periph); 2709 } 2710 break; 2711 case CDIOCSETRIGHT: 2712 { 2713 struct cd_mode_params params; 2714 union cd_pages *page; 2715 2716 params.alloc_len = sizeof(union cd_mode_data_6_10); 2717 params.mode_buf = malloc(params.alloc_len, M_SCSICD, 2718 M_WAITOK | M_ZERO); 2719 2720 cam_periph_lock(periph); 2721 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2722 ("trying to do CDIOCSETRIGHT\n")); 2723 2724 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2725 if (error) { 2726 free(params.mode_buf, M_SCSICD); 2727 cam_periph_unlock(periph); 2728 break; 2729 } 2730 page = cdgetpage(¶ms); 2731 2732 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2733 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2734 page->audio.port[2].channels = 0; 2735 page->audio.port[3].channels = 0; 2736 error = cdsetmode(periph, ¶ms); 2737 free(params.mode_buf, M_SCSICD); 2738 cam_periph_unlock(periph); 2739 } 2740 break; 2741 case CDIOCRESUME: 2742 cam_periph_lock(periph); 2743 error = cdpause(periph, 1); 2744 cam_periph_unlock(periph); 2745 break; 2746 case CDIOCPAUSE: 2747 cam_periph_lock(periph); 2748 error = cdpause(periph, 0); 2749 cam_periph_unlock(periph); 2750 break; 2751 case CDIOCSTART: 2752 cam_periph_lock(periph); 2753 error = cdstartunit(periph, 0); 2754 cam_periph_unlock(periph); 2755 break; 2756 case CDIOCCLOSE: 2757 cam_periph_lock(periph); 2758 error = cdstartunit(periph, 1); 2759 cam_periph_unlock(periph); 2760 break; 2761 case CDIOCSTOP: 2762 cam_periph_lock(periph); 2763 error = cdstopunit(periph, 0); 2764 cam_periph_unlock(periph); 2765 break; 2766 case CDIOCEJECT: 2767 cam_periph_lock(periph); 2768 error = cdstopunit(periph, 1); 2769 cam_periph_unlock(periph); 2770 break; 2771 case CDIOCALLOW: 2772 cam_periph_lock(periph); 2773 cdprevent(periph, PR_ALLOW); 2774 cam_periph_unlock(periph); 2775 break; 2776 case CDIOCPREVENT: 2777 cam_periph_lock(periph); 2778 cdprevent(periph, PR_PREVENT); 2779 cam_periph_unlock(periph); 2780 break; 2781 case CDIOCSETDEBUG: 2782 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2783 error = ENOTTY; 2784 break; 2785 case CDIOCCLRDEBUG: 2786 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2787 error = ENOTTY; 2788 break; 2789 case CDIOCRESET: 2790 /* return (cd_reset(periph)); */ 2791 error = ENOTTY; 2792 break; 2793 case CDRIOCREADSPEED: 2794 cam_periph_lock(periph); 2795 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2796 cam_periph_unlock(periph); 2797 break; 2798 case CDRIOCWRITESPEED: 2799 cam_periph_lock(periph); 2800 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2801 cam_periph_unlock(periph); 2802 break; 2803 case CDRIOCGETBLOCKSIZE: 2804 *(int *)addr = softc->params.blksize; 2805 break; 2806 case CDRIOCSETBLOCKSIZE: 2807 if (*(int *)addr <= 0) { 2808 error = EINVAL; 2809 break; 2810 } 2811 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr; 2812 break; 2813 case DVDIOCSENDKEY: 2814 case DVDIOCREPORTKEY: { 2815 struct dvd_authinfo *authinfo; 2816 2817 authinfo = (struct dvd_authinfo *)addr; 2818 2819 if (cmd == DVDIOCREPORTKEY) 2820 error = cdreportkey(periph, authinfo); 2821 else 2822 error = cdsendkey(periph, authinfo); 2823 break; 2824 } 2825 case DVDIOCREADSTRUCTURE: { 2826 struct dvd_struct *dvdstruct; 2827 2828 dvdstruct = (struct dvd_struct *)addr; 2829 2830 error = cdreaddvdstructure(periph, dvdstruct); 2831 2832 break; 2833 } 2834 default: 2835 cam_periph_lock(periph); 2836 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2837 cam_periph_unlock(periph); 2838 break; 2839 } 2840 2841 cam_periph_lock(periph); 2842 cam_periph_unhold(periph); 2843 2844 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2845 if (error && bootverbose) { 2846 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2847 } 2848 cam_periph_unlock(periph); 2849 2850 return (error); 2851 } 2852 2853 static void 2854 cdprevent(struct cam_periph *periph, int action) 2855 { 2856 union ccb *ccb; 2857 struct cd_softc *softc; 2858 int error; 2859 2860 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2861 2862 softc = (struct cd_softc *)periph->softc; 2863 2864 if (((action == PR_ALLOW) 2865 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2866 || ((action == PR_PREVENT) 2867 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2868 return; 2869 } 2870 2871 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 2872 2873 scsi_prevent(&ccb->csio, 2874 /*retries*/ cd_retry_count, 2875 cddone, 2876 MSG_SIMPLE_Q_TAG, 2877 action, 2878 SSD_FULL_SIZE, 2879 /* timeout */60000); 2880 2881 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2882 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2883 2884 xpt_release_ccb(ccb); 2885 2886 if (error == 0) { 2887 if (action == PR_ALLOW) 2888 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2889 else 2890 softc->flags |= CD_FLAG_DISC_LOCKED; 2891 } 2892 } 2893 2894 /* 2895 * XXX: the disk media and sector size is only really able to change 2896 * XXX: while the device is closed. 2897 */ 2898 static int 2899 cdcheckmedia(struct cam_periph *periph) 2900 { 2901 struct cd_softc *softc; 2902 struct ioc_toc_header *toch; 2903 struct cd_toc_single leadout; 2904 u_int32_t size, toclen; 2905 int error, num_entries, cdindex; 2906 2907 softc = (struct cd_softc *)periph->softc; 2908 2909 cdprevent(periph, PR_PREVENT); 2910 softc->disk->d_sectorsize = 2048; 2911 softc->disk->d_mediasize = 0; 2912 2913 /* 2914 * Get the disc size and block size. If we can't get it, we don't 2915 * have media, most likely. 2916 */ 2917 if ((error = cdsize(periph, &size)) != 0) { 2918 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2919 cdprevent(periph, PR_ALLOW); 2920 return (error); 2921 } else { 2922 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA; 2923 softc->disk->d_sectorsize = softc->params.blksize; 2924 softc->disk->d_mediasize = 2925 (off_t)softc->params.blksize * softc->params.disksize; 2926 } 2927 2928 /* 2929 * Now we check the table of contents. This (currently) is only 2930 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2931 * things like present a separate entry in /dev for each track, 2932 * like that acd(4) driver does. 2933 */ 2934 bzero(&softc->toc, sizeof(softc->toc)); 2935 toch = &softc->toc.header; 2936 /* 2937 * We will get errors here for media that doesn't have a table of 2938 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2939 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2940 * has not been recorded (no complete session) and the Format codes 2941 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2942 * with an INVALID FIELD IN CDB. Devices that are not capable of 2943 * reading an incomplete session on DDC/CD-R/RW media shall report 2944 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2945 * 2946 * So this isn't fatal if we can't read the table of contents, it 2947 * just means that the user won't be able to issue the play tracks 2948 * ioctl, and likely lots of other stuff won't work either. They 2949 * need to burn the CD before we can do a whole lot with it. So 2950 * we don't print anything here if we get an error back. 2951 */ 2952 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2953 SF_NO_PRINT); 2954 /* 2955 * Errors in reading the table of contents aren't fatal, we just 2956 * won't have a valid table of contents cached. 2957 */ 2958 if (error != 0) { 2959 error = 0; 2960 bzero(&softc->toc, sizeof(softc->toc)); 2961 goto bailout; 2962 } 2963 2964 if (softc->quirks & CD_Q_BCD_TRACKS) { 2965 toch->starting_track = bcd2bin(toch->starting_track); 2966 toch->ending_track = bcd2bin(toch->ending_track); 2967 } 2968 2969 /* Number of TOC entries, plus leadout */ 2970 num_entries = (toch->ending_track - toch->starting_track) + 2; 2971 2972 if (num_entries <= 0) 2973 goto bailout; 2974 2975 toclen = num_entries * sizeof(struct cd_toc_entry); 2976 2977 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2978 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2979 SF_NO_PRINT); 2980 if (error != 0) { 2981 error = 0; 2982 bzero(&softc->toc, sizeof(softc->toc)); 2983 goto bailout; 2984 } 2985 2986 if (softc->quirks & CD_Q_BCD_TRACKS) { 2987 toch->starting_track = bcd2bin(toch->starting_track); 2988 toch->ending_track = bcd2bin(toch->ending_track); 2989 } 2990 /* 2991 * XXX KDM is this necessary? Probably only if the drive doesn't 2992 * return leadout information with the table of contents. 2993 */ 2994 cdindex = toch->starting_track + num_entries -1; 2995 if (cdindex == toch->ending_track + 1) { 2996 2997 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2998 (u_int8_t *)&leadout, sizeof(leadout), 2999 SF_NO_PRINT); 3000 if (error != 0) { 3001 error = 0; 3002 goto bailout; 3003 } 3004 softc->toc.entries[cdindex - toch->starting_track] = 3005 leadout.entry; 3006 } 3007 if (softc->quirks & CD_Q_BCD_TRACKS) { 3008 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 3009 softc->toc.entries[cdindex].track = 3010 bcd2bin(softc->toc.entries[cdindex].track); 3011 } 3012 } 3013 3014 softc->flags |= CD_FLAG_VALID_TOC; 3015 3016 /* If the first track is audio, correct sector size. */ 3017 if ((softc->toc.entries[0].control & 4) == 0) { 3018 softc->disk->d_sectorsize = softc->params.blksize = 2352; 3019 softc->disk->d_mediasize = 3020 (off_t)softc->params.blksize * softc->params.disksize; 3021 } 3022 3023 bailout: 3024 3025 /* 3026 * We unconditionally (re)set the blocksize each time the 3027 * CD device is opened. This is because the CD can change, 3028 * and therefore the blocksize might change. 3029 * XXX problems here if some slice or partition is still 3030 * open with the old size? 3031 */ 3032 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 3033 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 3034 softc->disk->d_devstat->block_size = softc->params.blksize; 3035 3036 return (error); 3037 } 3038 3039 static int 3040 cdsize(struct cam_periph *periph, u_int32_t *size) 3041 { 3042 struct cd_softc *softc; 3043 union ccb *ccb; 3044 struct scsi_read_capacity_data *rcap_buf; 3045 int error; 3046 3047 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3048 3049 softc = (struct cd_softc *)periph->softc; 3050 3051 ccb = cdgetccb(periph, CAM_PRIORITY_NORMAL); 3052 3053 /* XXX Should be M_WAITOK */ 3054 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 3055 M_SCSICD, M_NOWAIT | M_ZERO); 3056 if (rcap_buf == NULL) 3057 return (ENOMEM); 3058 3059 scsi_read_capacity(&ccb->csio, 3060 /*retries*/ cd_retry_count, 3061 cddone, 3062 MSG_SIMPLE_Q_TAG, 3063 rcap_buf, 3064 SSD_FULL_SIZE, 3065 /* timeout */20000); 3066 3067 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3068 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3069 3070 xpt_release_ccb(ccb); 3071 3072 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3073 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3074 /* Make sure we got at least some block size. */ 3075 if (error == 0 && softc->params.blksize == 0) 3076 error = EIO; 3077 /* 3078 * SCSI-3 mandates that the reported blocksize shall be 2048. 3079 * Older drives sometimes report funny values, trim it down to 3080 * 2048, or other parts of the kernel will get confused. 3081 * 3082 * XXX we leave drives alone that might report 512 bytes, as 3083 * well as drives reporting more weird sizes like perhaps 4K. 3084 */ 3085 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3086 softc->params.blksize = 2048; 3087 3088 free(rcap_buf, M_SCSICD); 3089 *size = softc->params.disksize; 3090 3091 return (error); 3092 3093 } 3094 3095 static int 3096 cd6byteworkaround(union ccb *ccb) 3097 { 3098 u_int8_t *cdb; 3099 struct cam_periph *periph; 3100 struct cd_softc *softc; 3101 struct cd_mode_params *params; 3102 int frozen, found; 3103 3104 periph = xpt_path_periph(ccb->ccb_h.path); 3105 softc = (struct cd_softc *)periph->softc; 3106 3107 cdb = ccb->csio.cdb_io.cdb_bytes; 3108 3109 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3110 || ((cdb[0] != MODE_SENSE_6) 3111 && (cdb[0] != MODE_SELECT_6))) 3112 return (0); 3113 3114 /* 3115 * Because there is no convenient place to stash the overall 3116 * cd_mode_params structure pointer, we have to grab it like this. 3117 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3118 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3119 * 3120 * XXX It would be nice if, at some point, we could increase the 3121 * number of available peripheral private pointers. Both pointers 3122 * are currently used in most every peripheral driver. 3123 */ 3124 found = 0; 3125 3126 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3127 if (params->mode_buf == ccb->csio.data_ptr) { 3128 found = 1; 3129 break; 3130 } 3131 } 3132 3133 /* 3134 * This shouldn't happen. All mode sense and mode select 3135 * operations in the cd(4) driver MUST go through cdgetmode() and 3136 * cdsetmode()! 3137 */ 3138 if (found == 0) { 3139 xpt_print(periph->path, 3140 "mode buffer not found in mode queue!\n"); 3141 return (0); 3142 } 3143 3144 params->cdb_size = 10; 3145 softc->minimum_command_size = 10; 3146 xpt_print(ccb->ccb_h.path, 3147 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3148 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3149 3150 if (cdb[0] == MODE_SENSE_6) { 3151 struct scsi_mode_sense_10 ms10; 3152 struct scsi_mode_sense_6 *ms6; 3153 int len; 3154 3155 ms6 = (struct scsi_mode_sense_6 *)cdb; 3156 3157 bzero(&ms10, sizeof(ms10)); 3158 ms10.opcode = MODE_SENSE_10; 3159 ms10.byte2 = ms6->byte2; 3160 ms10.page = ms6->page; 3161 3162 /* 3163 * 10 byte mode header, block descriptor, 3164 * sizeof(union cd_pages) 3165 */ 3166 len = sizeof(struct cd_mode_data_10); 3167 ccb->csio.dxfer_len = len; 3168 3169 scsi_ulto2b(len, ms10.length); 3170 ms10.control = ms6->control; 3171 bcopy(&ms10, cdb, 10); 3172 ccb->csio.cdb_len = 10; 3173 } else { 3174 struct scsi_mode_select_10 ms10; 3175 struct scsi_mode_select_6 *ms6; 3176 struct scsi_mode_header_6 *header6; 3177 struct scsi_mode_header_10 *header10; 3178 struct scsi_mode_page_header *page_header; 3179 int blk_desc_len, page_num, page_size, len; 3180 3181 ms6 = (struct scsi_mode_select_6 *)cdb; 3182 3183 bzero(&ms10, sizeof(ms10)); 3184 ms10.opcode = MODE_SELECT_10; 3185 ms10.byte2 = ms6->byte2; 3186 3187 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3188 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3189 3190 page_header = find_mode_page_6(header6); 3191 page_num = page_header->page_code; 3192 3193 blk_desc_len = header6->blk_desc_len; 3194 3195 page_size = cdgetpagesize(page_num); 3196 3197 if (page_size != (page_header->page_length + 3198 sizeof(*page_header))) 3199 page_size = page_header->page_length + 3200 sizeof(*page_header); 3201 3202 len = sizeof(*header10) + blk_desc_len + page_size; 3203 3204 len = min(params->alloc_len, len); 3205 3206 /* 3207 * Since the 6 byte parameter header is shorter than the 10 3208 * byte parameter header, we need to copy the actual mode 3209 * page data, and the block descriptor, if any, so things wind 3210 * up in the right place. The regions will overlap, but 3211 * bcopy() does the right thing. 3212 */ 3213 bcopy(params->mode_buf + sizeof(*header6), 3214 params->mode_buf + sizeof(*header10), 3215 len - sizeof(*header10)); 3216 3217 /* Make sure these fields are set correctly. */ 3218 scsi_ulto2b(0, header10->data_length); 3219 header10->medium_type = 0; 3220 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3221 3222 ccb->csio.dxfer_len = len; 3223 3224 scsi_ulto2b(len, ms10.length); 3225 ms10.control = ms6->control; 3226 bcopy(&ms10, cdb, 10); 3227 ccb->csio.cdb_len = 10; 3228 } 3229 3230 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3231 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3232 xpt_action(ccb); 3233 if (frozen) { 3234 cam_release_devq(ccb->ccb_h.path, 3235 /*relsim_flags*/0, 3236 /*openings*/0, 3237 /*timeout*/0, 3238 /*getcount_only*/0); 3239 } 3240 3241 return (ERESTART); 3242 } 3243 3244 static int 3245 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3246 { 3247 struct cd_softc *softc; 3248 struct cam_periph *periph; 3249 int error, error_code, sense_key, asc, ascq; 3250 3251 periph = xpt_path_periph(ccb->ccb_h.path); 3252 softc = (struct cd_softc *)periph->softc; 3253 3254 error = 0; 3255 3256 /* 3257 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3258 * CDB comes back with this particular error, try transforming it 3259 * into the 10 byte version. 3260 */ 3261 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3262 error = cd6byteworkaround(ccb); 3263 } else if (scsi_extract_sense_ccb(ccb, 3264 &error_code, &sense_key, &asc, &ascq)) { 3265 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3266 error = cd6byteworkaround(ccb); 3267 else if (sense_key == SSD_KEY_UNIT_ATTENTION && 3268 asc == 0x28 && ascq == 0x00) 3269 disk_media_changed(softc->disk, M_NOWAIT); 3270 else if (sense_key == SSD_KEY_NOT_READY && 3271 asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) { 3272 softc->flags &= ~CD_FLAG_SAW_MEDIA; 3273 disk_media_gone(softc->disk, M_NOWAIT); 3274 } 3275 } 3276 3277 if (error == ERESTART) 3278 return (error); 3279 3280 /* 3281 * XXX 3282 * Until we have a better way of doing pack validation, 3283 * don't treat UAs as errors. 3284 */ 3285 sense_flags |= SF_RETRY_UA; 3286 return (cam_periph_error(ccb, cam_flags, sense_flags, 3287 &softc->saved_ccb)); 3288 } 3289 3290 static void 3291 cdmediapoll(void *arg) 3292 { 3293 struct cam_periph *periph = arg; 3294 struct cd_softc *softc = periph->softc; 3295 3296 if (softc->flags & CD_FLAG_CHANGER) 3297 return; 3298 3299 if (softc->state == CD_STATE_NORMAL && !softc->tur && 3300 softc->outstanding_cmds == 0) { 3301 if (cam_periph_acquire(periph) == CAM_REQ_CMP) { 3302 softc->tur = 1; 3303 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 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