Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/cam/scsi/scsi_cd.c
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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: releng/6.2/sys/cam/scsi/scsi_cd.c 160697 2006-07-26 07:49:37Z delphij $"); 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 74 #include <cam/scsi/scsi_message.h> 75 #include <cam/scsi/scsi_da.h> 76 #include <cam/scsi/scsi_cd.h> 77 78 #define LEADOUT 0xaa /* leadout toc entry */ 79 80 struct cd_params { 81 u_int32_t blksize; 82 u_long disksize; 83 }; 84 85 typedef enum { 86 CD_Q_NONE = 0x00, 87 CD_Q_NO_TOUCH = 0x01, 88 CD_Q_BCD_TRACKS = 0x02, 89 CD_Q_NO_CHANGER = 0x04, 90 CD_Q_CHANGER = 0x08, 91 CD_Q_10_BYTE_ONLY = 0x10 92 } cd_quirks; 93 94 typedef enum { 95 CD_FLAG_INVALID = 0x0001, 96 CD_FLAG_NEW_DISC = 0x0002, 97 CD_FLAG_DISC_LOCKED = 0x0004, 98 CD_FLAG_DISC_REMOVABLE = 0x0008, 99 CD_FLAG_TAGGED_QUEUING = 0x0010, 100 CD_FLAG_CHANGER = 0x0040, 101 CD_FLAG_ACTIVE = 0x0080, 102 CD_FLAG_SCHED_ON_COMP = 0x0100, 103 CD_FLAG_RETRY_UA = 0x0200, 104 CD_FLAG_VALID_MEDIA = 0x0400, 105 CD_FLAG_VALID_TOC = 0x0800, 106 CD_FLAG_SCTX_INIT = 0x1000 107 } cd_flags; 108 109 typedef enum { 110 CD_CCB_PROBE = 0x01, 111 CD_CCB_BUFFER_IO = 0x02, 112 CD_CCB_WAITING = 0x03, 113 CD_CCB_TYPE_MASK = 0x0F, 114 CD_CCB_RETRY_UA = 0x10 115 } cd_ccb_state; 116 117 typedef enum { 118 CHANGER_TIMEOUT_SCHED = 0x01, 119 CHANGER_SHORT_TMOUT_SCHED = 0x02, 120 CHANGER_MANUAL_CALL = 0x04, 121 CHANGER_NEED_TIMEOUT = 0x08 122 } cd_changer_flags; 123 124 #define ccb_state ppriv_field0 125 #define ccb_bp ppriv_ptr1 126 127 struct cd_tocdata { 128 struct ioc_toc_header header; 129 struct cd_toc_entry entries[100]; 130 }; 131 132 struct cd_toc_single { 133 struct ioc_toc_header header; 134 struct cd_toc_entry entry; 135 }; 136 137 typedef enum { 138 CD_STATE_PROBE, 139 CD_STATE_NORMAL 140 } cd_state; 141 142 struct cd_softc { 143 cam_pinfo pinfo; 144 cd_state state; 145 volatile cd_flags flags; 146 struct bio_queue_head bio_queue; 147 LIST_HEAD(, ccb_hdr) pending_ccbs; 148 struct cd_params params; 149 union ccb saved_ccb; 150 cd_quirks quirks; 151 STAILQ_ENTRY(cd_softc) changer_links; 152 struct cdchanger *changer; 153 int bufs_left; 154 struct cam_periph *periph; 155 int minimum_command_size; 156 int outstanding_cmds; 157 struct task sysctl_task; 158 struct sysctl_ctx_list sysctl_ctx; 159 struct sysctl_oid *sysctl_tree; 160 STAILQ_HEAD(, cd_mode_params) mode_queue; 161 struct cd_tocdata toc; 162 struct disk *disk; 163 }; 164 165 struct cd_page_sizes { 166 int page; 167 int page_size; 168 }; 169 170 static struct cd_page_sizes cd_page_size_table[] = 171 { 172 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 173 }; 174 175 struct cd_quirk_entry { 176 struct scsi_inquiry_pattern inq_pat; 177 cd_quirks quirks; 178 }; 179 180 /* 181 * The changer quirk entries aren't strictly necessary. Basically, what 182 * they do is tell cdregister() up front that a device is a changer. 183 * Otherwise, it will figure that fact out once it sees a LUN on the device 184 * that is greater than 0. If it is known up front that a device is a changer, 185 * all I/O to the device will go through the changer scheduling routines, as 186 * opposed to the "normal" CD code. 187 * 188 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 189 * your device hangs when it gets a 10 byte command. Adding a quirk just 190 * to get rid of the informative diagnostic message is not acceptable. All 191 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 192 * referenced in a comment along with the quirk) , and must be approved by 193 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 194 * be removed until the submitter can explain why they are needed. 195 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 196 * when the CAM_NEW_TRAN_CODE work is done. 197 */ 198 static struct cd_quirk_entry cd_quirk_table[] = 199 { 200 { 201 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 202 /*quirks*/ CD_Q_CHANGER 203 }, 204 { 205 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 206 "*"}, /* quirks */ CD_Q_CHANGER 207 }, 208 { 209 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 210 /* quirks */ CD_Q_CHANGER 211 }, 212 { 213 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 214 /* quirks */ CD_Q_BCD_TRACKS 215 } 216 }; 217 218 static disk_open_t cdopen; 219 static disk_close_t cdclose; 220 static disk_ioctl_t cdioctl; 221 static disk_strategy_t cdstrategy; 222 223 static periph_init_t cdinit; 224 static periph_ctor_t cdregister; 225 static periph_dtor_t cdcleanup; 226 static periph_start_t cdstart; 227 static periph_oninv_t cdoninvalidate; 228 static void cdasync(void *callback_arg, u_int32_t code, 229 struct cam_path *path, void *arg); 230 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 231 static void cdshorttimeout(void *arg); 232 static void cdschedule(struct cam_periph *periph, int priority); 233 static void cdrunchangerqueue(void *arg); 234 static void cdchangerschedule(struct cd_softc *softc); 235 static int cdrunccb(union ccb *ccb, 236 int (*error_routine)(union ccb *ccb, 237 u_int32_t cam_flags, 238 u_int32_t sense_flags), 239 u_int32_t cam_flags, u_int32_t sense_flags); 240 static union ccb *cdgetccb(struct cam_periph *periph, 241 u_int32_t priority); 242 static void cddone(struct cam_periph *periph, 243 union ccb *start_ccb); 244 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 245 static int cdgetpagesize(int page_num); 246 static void cdprevent(struct cam_periph *periph, int action); 247 static int cdcheckmedia(struct cam_periph *periph); 248 static int cdsize(struct cam_periph *periph, u_int32_t *size); 249 static int cd6byteworkaround(union ccb *ccb); 250 static int cderror(union ccb *ccb, u_int32_t cam_flags, 251 u_int32_t sense_flags); 252 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 253 u_int32_t start, u_int8_t *data, 254 u_int32_t len, u_int32_t sense_flags); 255 static int cdgetmode(struct cam_periph *periph, 256 struct cd_mode_params *data, u_int32_t page); 257 static int cdsetmode(struct cam_periph *periph, 258 struct cd_mode_params *data); 259 static int cdplay(struct cam_periph *periph, u_int32_t blk, 260 u_int32_t len); 261 static int cdreadsubchannel(struct cam_periph *periph, 262 u_int32_t mode, u_int32_t format, 263 int track, 264 struct cd_sub_channel_info *data, 265 u_int32_t len); 266 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 267 u_int32_t starts, u_int32_t startf, 268 u_int32_t endm, u_int32_t ends, 269 u_int32_t endf); 270 static int cdplaytracks(struct cam_periph *periph, 271 u_int32_t strack, u_int32_t sindex, 272 u_int32_t etrack, u_int32_t eindex); 273 static int cdpause(struct cam_periph *periph, u_int32_t go); 274 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 275 static int cdstartunit(struct cam_periph *periph, int load); 276 static int cdsetspeed(struct cam_periph *periph, 277 u_int32_t rdspeed, u_int32_t wrspeed); 278 static int cdreportkey(struct cam_periph *periph, 279 struct dvd_authinfo *authinfo); 280 static int cdsendkey(struct cam_periph *periph, 281 struct dvd_authinfo *authinfo); 282 static int cdreaddvdstructure(struct cam_periph *periph, 283 struct dvd_struct *dvdstruct); 284 285 static struct periph_driver cddriver = 286 { 287 cdinit, "cd", 288 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 289 }; 290 291 PERIPHDRIVER_DECLARE(cd, cddriver); 292 293 294 static int num_changers; 295 296 #ifndef CHANGER_MIN_BUSY_SECONDS 297 #define CHANGER_MIN_BUSY_SECONDS 5 298 #endif 299 #ifndef CHANGER_MAX_BUSY_SECONDS 300 #define CHANGER_MAX_BUSY_SECONDS 15 301 #endif 302 303 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 304 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 305 306 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 307 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 308 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 309 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 310 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 311 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 312 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 313 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 314 315 struct cdchanger { 316 path_id_t path_id; 317 target_id_t target_id; 318 int num_devices; 319 struct camq devq; 320 struct timeval start_time; 321 struct cd_softc *cur_device; 322 struct callout_handle short_handle; 323 struct callout_handle long_handle; 324 volatile cd_changer_flags flags; 325 STAILQ_ENTRY(cdchanger) changer_links; 326 STAILQ_HEAD(chdevlist, cd_softc) chluns; 327 }; 328 329 static STAILQ_HEAD(changerlist, cdchanger) changerq; 330 331 332 static void 333 cdinit(void) 334 { 335 cam_status status; 336 struct cam_path *path; 337 338 /* 339 * Install a global async callback. This callback will 340 * receive async callbacks like "new device found". 341 */ 342 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 343 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 344 345 if (status == CAM_REQ_CMP) { 346 struct ccb_setasync csa; 347 348 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 349 csa.ccb_h.func_code = XPT_SASYNC_CB; 350 csa.event_enable = AC_FOUND_DEVICE; 351 csa.callback = cdasync; 352 csa.callback_arg = NULL; 353 xpt_action((union ccb *)&csa); 354 status = csa.ccb_h.status; 355 xpt_free_path(path); 356 } 357 358 if (status != CAM_REQ_CMP) { 359 printf("cd: Failed to attach master async callback " 360 "due to status 0x%x!\n", status); 361 } 362 } 363 364 static void 365 cdoninvalidate(struct cam_periph *periph) 366 { 367 int s; 368 struct cd_softc *softc; 369 struct ccb_setasync csa; 370 371 softc = (struct cd_softc *)periph->softc; 372 373 /* 374 * De-register any async callbacks. 375 */ 376 xpt_setup_ccb(&csa.ccb_h, periph->path, 377 /* priority */ 5); 378 csa.ccb_h.func_code = XPT_SASYNC_CB; 379 csa.event_enable = 0; 380 csa.callback = cdasync; 381 csa.callback_arg = periph; 382 xpt_action((union ccb *)&csa); 383 384 softc->flags |= CD_FLAG_INVALID; 385 386 /* 387 * Although the oninvalidate() routines are always called at 388 * splsoftcam, we need to be at splbio() here to keep the buffer 389 * queue from being modified while we traverse it. 390 */ 391 s = splbio(); 392 393 /* 394 * Return all queued I/O with ENXIO. 395 * XXX Handle any transactions queued to the card 396 * with XPT_ABORT_CCB. 397 */ 398 bioq_flush(&softc->bio_queue, NULL, ENXIO); 399 splx(s); 400 401 /* 402 * If this device is part of a changer, and it was scheduled 403 * to run, remove it from the run queue since we just nuked 404 * all of its scheduled I/O. 405 */ 406 if ((softc->flags & CD_FLAG_CHANGER) 407 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 408 camq_remove(&softc->changer->devq, softc->pinfo.index); 409 410 disk_gone(softc->disk); 411 xpt_print_path(periph->path); 412 printf("lost device\n"); 413 } 414 415 static void 416 cdcleanup(struct cam_periph *periph) 417 { 418 struct cd_softc *softc; 419 int s; 420 421 softc = (struct cd_softc *)periph->softc; 422 423 xpt_print_path(periph->path); 424 printf("removing device entry\n"); 425 426 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 427 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 428 xpt_print_path(periph->path); 429 printf("can't remove sysctl context\n"); 430 } 431 432 s = splsoftcam(); 433 /* 434 * In the queued, non-active case, the device in question 435 * has already been removed from the changer run queue. Since this 436 * device is active, we need to de-activate it, and schedule 437 * another device to run. (if there is another one to run) 438 */ 439 if ((softc->flags & CD_FLAG_CHANGER) 440 && (softc->flags & CD_FLAG_ACTIVE)) { 441 442 /* 443 * The purpose of the short timeout is soley to determine 444 * whether the current device has finished or not. Well, 445 * since we're removing the active device, we know that it 446 * is finished. So, get rid of the short timeout. 447 * Otherwise, if we're in the time period before the short 448 * timeout fires, and there are no other devices in the 449 * queue to run, there won't be any other device put in the 450 * active slot. i.e., when we call cdrunchangerqueue() 451 * below, it won't do anything. Then, when the short 452 * timeout fires, it'll look at the "current device", which 453 * we are free below, and possibly panic the kernel on a 454 * bogus pointer reference. 455 * 456 * The long timeout doesn't really matter, since we 457 * decrement the qfrozen_cnt to indicate that there is 458 * nothing in the active slot now. Therefore, there won't 459 * be any bogus pointer references there. 460 */ 461 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 462 untimeout(cdshorttimeout, softc->changer, 463 softc->changer->short_handle); 464 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 465 } 466 softc->changer->devq.qfrozen_cnt--; 467 softc->changer->flags |= CHANGER_MANUAL_CALL; 468 cdrunchangerqueue(softc->changer); 469 } 470 471 /* 472 * If we're removing the last device on the changer, go ahead and 473 * remove the changer device structure. 474 */ 475 if ((softc->flags & CD_FLAG_CHANGER) 476 && (--softc->changer->num_devices == 0)) { 477 478 /* 479 * Theoretically, there shouldn't be any timeouts left, but 480 * I'm not completely sure that that will be the case. So, 481 * it won't hurt to check and see if there are any left. 482 */ 483 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 484 untimeout(cdrunchangerqueue, softc->changer, 485 softc->changer->long_handle); 486 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 487 } 488 489 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 490 untimeout(cdshorttimeout, softc->changer, 491 softc->changer->short_handle); 492 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 493 } 494 495 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 496 changer_links); 497 xpt_print_path(periph->path); 498 printf("removing changer entry\n"); 499 free(softc->changer, M_DEVBUF); 500 num_changers--; 501 } 502 disk_destroy(softc->disk); 503 free(softc, M_DEVBUF); 504 splx(s); 505 } 506 507 static void 508 cdasync(void *callback_arg, u_int32_t code, 509 struct cam_path *path, void *arg) 510 { 511 struct cam_periph *periph; 512 513 periph = (struct cam_periph *)callback_arg; 514 switch (code) { 515 case AC_FOUND_DEVICE: 516 { 517 struct ccb_getdev *cgd; 518 cam_status status; 519 520 cgd = (struct ccb_getdev *)arg; 521 if (cgd == NULL) 522 break; 523 524 if (SID_TYPE(&cgd->inq_data) != T_CDROM 525 && SID_TYPE(&cgd->inq_data) != T_WORM) 526 break; 527 528 /* 529 * Allocate a peripheral instance for 530 * this device and start the probe 531 * process. 532 */ 533 status = cam_periph_alloc(cdregister, cdoninvalidate, 534 cdcleanup, cdstart, 535 "cd", CAM_PERIPH_BIO, 536 cgd->ccb_h.path, cdasync, 537 AC_FOUND_DEVICE, cgd); 538 539 if (status != CAM_REQ_CMP 540 && status != CAM_REQ_INPROG) 541 printf("cdasync: Unable to attach new device " 542 "due to status 0x%x\n", status); 543 544 break; 545 } 546 case AC_SENT_BDR: 547 case AC_BUS_RESET: 548 { 549 struct cd_softc *softc; 550 struct ccb_hdr *ccbh; 551 int s; 552 553 softc = (struct cd_softc *)periph->softc; 554 s = splsoftcam(); 555 /* 556 * Don't fail on the expected unit attention 557 * that will occur. 558 */ 559 softc->flags |= CD_FLAG_RETRY_UA; 560 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 561 ccbh->ccb_state |= CD_CCB_RETRY_UA; 562 splx(s); 563 /* FALLTHROUGH */ 564 } 565 default: 566 cam_periph_async(periph, code, path, arg); 567 break; 568 } 569 } 570 571 static void 572 cdsysctlinit(void *context, int pending) 573 { 574 struct cam_periph *periph; 575 struct cd_softc *softc; 576 char tmpstr[80], tmpstr2[80]; 577 578 periph = (struct cam_periph *)context; 579 softc = (struct cd_softc *)periph->softc; 580 581 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number); 582 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 583 584 mtx_lock(&Giant); 585 586 sysctl_ctx_init(&softc->sysctl_ctx); 587 softc->flags |= CD_FLAG_SCTX_INIT; 588 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 589 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 590 tmpstr2, CTLFLAG_RD, 0, tmpstr); 591 592 if (softc->sysctl_tree == NULL) { 593 printf("cdsysctlinit: unable to allocate sysctl tree\n"); 594 mtx_unlock(&Giant); 595 return; 596 } 597 598 /* 599 * Now register the sysctl handler, so the user can the value on 600 * the fly. 601 */ 602 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 603 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 604 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 605 "Minimum CDB size"); 606 607 mtx_unlock(&Giant); 608 } 609 610 /* 611 * We have a handler function for this so we can check the values when the 612 * user sets them, instead of every time we look at them. 613 */ 614 static int 615 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 616 { 617 int error, value; 618 619 value = *(int *)arg1; 620 621 error = sysctl_handle_int(oidp, &value, 0, req); 622 623 if ((error != 0) 624 || (req->newptr == NULL)) 625 return (error); 626 627 /* 628 * The only real values we can have here are 6 or 10. I don't 629 * really forsee having 12 be an option at any time in the future. 630 * So if the user sets something less than or equal to 6, we'll set 631 * it to 6. If he sets something greater than 6, we'll set it to 10. 632 * 633 * I suppose we could just return an error here for the wrong values, 634 * but I don't think it's necessary to do so, as long as we can 635 * determine the user's intent without too much trouble. 636 */ 637 if (value < 6) 638 value = 6; 639 else if (value > 6) 640 value = 10; 641 642 *(int *)arg1 = value; 643 644 return (0); 645 } 646 647 static cam_status 648 cdregister(struct cam_periph *periph, void *arg) 649 { 650 struct cd_softc *softc; 651 struct ccb_setasync csa; 652 struct ccb_pathinq cpi; 653 struct ccb_getdev *cgd; 654 char tmpstr[80]; 655 caddr_t match; 656 657 cgd = (struct ccb_getdev *)arg; 658 if (periph == NULL) { 659 printf("cdregister: periph was NULL!!\n"); 660 return(CAM_REQ_CMP_ERR); 661 } 662 if (cgd == NULL) { 663 printf("cdregister: no getdev CCB, can't register device\n"); 664 return(CAM_REQ_CMP_ERR); 665 } 666 667 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 668 669 if (softc == NULL) { 670 printf("cdregister: Unable to probe new device. " 671 "Unable to allocate softc\n"); 672 return(CAM_REQ_CMP_ERR); 673 } 674 675 bzero(softc, sizeof(*softc)); 676 LIST_INIT(&softc->pending_ccbs); 677 STAILQ_INIT(&softc->mode_queue); 678 softc->state = CD_STATE_PROBE; 679 bioq_init(&softc->bio_queue); 680 if (SID_IS_REMOVABLE(&cgd->inq_data)) 681 softc->flags |= CD_FLAG_DISC_REMOVABLE; 682 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 683 softc->flags |= CD_FLAG_TAGGED_QUEUING; 684 685 periph->softc = softc; 686 softc->periph = periph; 687 688 /* 689 * See if this device has any quirks. 690 */ 691 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 692 (caddr_t)cd_quirk_table, 693 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 694 sizeof(*cd_quirk_table), scsi_inquiry_match); 695 696 if (match != NULL) 697 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 698 else 699 softc->quirks = CD_Q_NONE; 700 701 /* Check if the SIM does not want 6 byte commands */ 702 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 703 cpi.ccb_h.func_code = XPT_PATH_INQ; 704 xpt_action((union ccb *)&cpi); 705 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 706 softc->quirks |= CD_Q_10_BYTE_ONLY; 707 708 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 709 710 /* The default is 6 byte commands, unless quirked otherwise */ 711 if (softc->quirks & CD_Q_10_BYTE_ONLY) 712 softc->minimum_command_size = 10; 713 else 714 softc->minimum_command_size = 6; 715 716 /* 717 * Load the user's default, if any. 718 */ 719 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 720 periph->unit_number); 721 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 722 723 /* 6 and 10 are the only permissible values here. */ 724 if (softc->minimum_command_size < 6) 725 softc->minimum_command_size = 6; 726 else if (softc->minimum_command_size > 6) 727 softc->minimum_command_size = 10; 728 729 /* 730 * We need to register the statistics structure for this device, 731 * but we don't have the blocksize yet for it. So, we register 732 * the structure and indicate that we don't have the blocksize 733 * yet. Unlike other SCSI peripheral drivers, we explicitly set 734 * the device type here to be CDROM, rather than just ORing in 735 * the device type. This is because this driver can attach to either 736 * CDROM or WORM devices, and we want this peripheral driver to 737 * show up in the devstat list as a CD peripheral driver, not a 738 * WORM peripheral driver. WORM drives will also have the WORM 739 * driver attached to them. 740 */ 741 softc->disk = disk_alloc(); 742 softc->disk->d_devstat = devstat_new_entry("cd", 743 periph->unit_number, 0, 744 DEVSTAT_BS_UNAVAILABLE, 745 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 746 DEVSTAT_PRIORITY_CD); 747 softc->disk->d_open = cdopen; 748 softc->disk->d_close = cdclose; 749 softc->disk->d_strategy = cdstrategy; 750 softc->disk->d_ioctl = cdioctl; 751 softc->disk->d_name = "cd"; 752 softc->disk->d_unit = periph->unit_number; 753 softc->disk->d_drv1 = periph; 754 softc->disk->d_flags = DISKFLAG_NEEDSGIANT; 755 disk_create(softc->disk, DISK_VERSION); 756 757 /* 758 * Add an async callback so that we get 759 * notified if this device goes away. 760 */ 761 xpt_setup_ccb(&csa.ccb_h, periph->path, 762 /* priority */ 5); 763 csa.ccb_h.func_code = XPT_SASYNC_CB; 764 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 765 csa.callback = cdasync; 766 csa.callback_arg = periph; 767 xpt_action((union ccb *)&csa); 768 769 /* 770 * If the target lun is greater than 0, we most likely have a CD 771 * changer device. Check the quirk entries as well, though, just 772 * in case someone has a CD tower with one lun per drive or 773 * something like that. Also, if we know up front that a 774 * particular device is a changer, we can mark it as such starting 775 * with lun 0, instead of lun 1. It shouldn't be necessary to have 776 * a quirk entry to define something as a changer, however. 777 */ 778 if (((cgd->ccb_h.target_lun > 0) 779 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 780 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 781 struct cdchanger *nchanger; 782 struct cam_periph *nperiph; 783 struct cam_path *path; 784 cam_status status; 785 int found; 786 787 /* Set the changer flag in the current device's softc */ 788 softc->flags |= CD_FLAG_CHANGER; 789 790 if (num_changers == 0) 791 STAILQ_INIT(&changerq); 792 793 /* 794 * Now, look around for an existing changer device with the 795 * same path and target ID as the current device. 796 */ 797 for (found = 0, 798 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 799 nchanger != NULL; 800 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 801 if ((nchanger->path_id == cgd->ccb_h.path_id) 802 && (nchanger->target_id == cgd->ccb_h.target_id)) { 803 found = 1; 804 break; 805 } 806 } 807 808 /* 809 * If we found a matching entry, just add this device to 810 * the list of devices on this changer. 811 */ 812 if (found == 1) { 813 struct chdevlist *chlunhead; 814 815 chlunhead = &nchanger->chluns; 816 817 /* 818 * XXX KDM look at consolidating this code with the 819 * code below in a separate function. 820 */ 821 822 /* 823 * Create a path with lun id 0, and see if we can 824 * find a matching device 825 */ 826 status = xpt_create_path(&path, /*periph*/ periph, 827 cgd->ccb_h.path_id, 828 cgd->ccb_h.target_id, 0); 829 830 if ((status == CAM_REQ_CMP) 831 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 832 struct cd_softc *nsoftc; 833 834 nsoftc = (struct cd_softc *)nperiph->softc; 835 836 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 837 nsoftc->flags |= CD_FLAG_CHANGER; 838 nchanger->num_devices++; 839 if (camq_resize(&nchanger->devq, 840 nchanger->num_devices)!=CAM_REQ_CMP){ 841 printf("cdregister: " 842 "camq_resize " 843 "failed, changer " 844 "support may " 845 "be messed up\n"); 846 } 847 nsoftc->changer = nchanger; 848 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 849 850 STAILQ_INSERT_TAIL(&nchanger->chluns, 851 nsoftc,changer_links); 852 } 853 xpt_free_path(path); 854 } else if (status == CAM_REQ_CMP) 855 xpt_free_path(path); 856 else { 857 printf("cdregister: unable to allocate path\n" 858 "cdregister: changer support may be " 859 "broken\n"); 860 } 861 862 nchanger->num_devices++; 863 864 softc->changer = nchanger; 865 softc->pinfo.index = CAM_UNQUEUED_INDEX; 866 867 if (camq_resize(&nchanger->devq, 868 nchanger->num_devices) != CAM_REQ_CMP) { 869 printf("cdregister: camq_resize " 870 "failed, changer support may " 871 "be messed up\n"); 872 } 873 874 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 875 } 876 /* 877 * In this case, we don't already have an entry for this 878 * particular changer, so we need to create one, add it to 879 * the queue, and queue this device on the list for this 880 * changer. Before we queue this device, however, we need 881 * to search for lun id 0 on this target, and add it to the 882 * queue first, if it exists. (and if it hasn't already 883 * been marked as part of the changer.) 884 */ 885 else { 886 nchanger = malloc(sizeof(struct cdchanger), 887 M_DEVBUF, M_NOWAIT); 888 889 if (nchanger == NULL) { 890 softc->flags &= ~CD_FLAG_CHANGER; 891 printf("cdregister: unable to malloc " 892 "changer structure\ncdregister: " 893 "changer support disabled\n"); 894 895 /* 896 * Yes, gotos can be gross but in this case 897 * I think it's justified.. 898 */ 899 goto cdregisterexit; 900 } 901 902 /* zero the structure */ 903 bzero(nchanger, sizeof(struct cdchanger)); 904 905 if (camq_init(&nchanger->devq, 1) != 0) { 906 softc->flags &= ~CD_FLAG_CHANGER; 907 printf("cdregister: changer support " 908 "disabled\n"); 909 goto cdregisterexit; 910 } 911 912 num_changers++; 913 914 nchanger->path_id = cgd->ccb_h.path_id; 915 nchanger->target_id = cgd->ccb_h.target_id; 916 917 /* this is superfluous, but it makes things clearer */ 918 nchanger->num_devices = 0; 919 920 STAILQ_INIT(&nchanger->chluns); 921 922 STAILQ_INSERT_TAIL(&changerq, nchanger, 923 changer_links); 924 925 /* 926 * Create a path with lun id 0, and see if we can 927 * find a matching device 928 */ 929 status = xpt_create_path(&path, /*periph*/ periph, 930 cgd->ccb_h.path_id, 931 cgd->ccb_h.target_id, 0); 932 933 /* 934 * If we were able to allocate the path, and if we 935 * find a matching device and it isn't already 936 * marked as part of a changer, then we add it to 937 * the current changer. 938 */ 939 if ((status == CAM_REQ_CMP) 940 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 941 && ((((struct cd_softc *)periph->softc)->flags & 942 CD_FLAG_CHANGER) == 0)) { 943 struct cd_softc *nsoftc; 944 945 nsoftc = (struct cd_softc *)nperiph->softc; 946 947 nsoftc->flags |= CD_FLAG_CHANGER; 948 nchanger->num_devices++; 949 if (camq_resize(&nchanger->devq, 950 nchanger->num_devices) != CAM_REQ_CMP) { 951 printf("cdregister: camq_resize " 952 "failed, changer support may " 953 "be messed up\n"); 954 } 955 nsoftc->changer = nchanger; 956 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 957 958 STAILQ_INSERT_TAIL(&nchanger->chluns, 959 nsoftc, changer_links); 960 xpt_free_path(path); 961 } else if (status == CAM_REQ_CMP) 962 xpt_free_path(path); 963 else { 964 printf("cdregister: unable to allocate path\n" 965 "cdregister: changer support may be " 966 "broken\n"); 967 } 968 969 softc->changer = nchanger; 970 softc->pinfo.index = CAM_UNQUEUED_INDEX; 971 nchanger->num_devices++; 972 if (camq_resize(&nchanger->devq, 973 nchanger->num_devices) != CAM_REQ_CMP) { 974 printf("cdregister: camq_resize " 975 "failed, changer support may " 976 "be messed up\n"); 977 } 978 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 979 changer_links); 980 } 981 } 982 983 cdregisterexit: 984 985 /* Lock this peripheral until we are setup */ 986 /* Can't block */ 987 cam_periph_lock(periph, PRIBIO); 988 989 if ((softc->flags & CD_FLAG_CHANGER) == 0) 990 xpt_schedule(periph, /*priority*/5); 991 else 992 cdschedule(periph, /*priority*/ 5); 993 994 return(CAM_REQ_CMP); 995 } 996 997 static int 998 cdopen(struct disk *dp) 999 { 1000 struct cam_periph *periph; 1001 struct cd_softc *softc; 1002 int error; 1003 int s; 1004 1005 periph = (struct cam_periph *)dp->d_drv1; 1006 if (periph == NULL) 1007 return (ENXIO); 1008 1009 softc = (struct cd_softc *)periph->softc; 1010 1011 /* 1012 * Grab splsoftcam and hold it until we lock the peripheral. 1013 */ 1014 s = splsoftcam(); 1015 if (softc->flags & CD_FLAG_INVALID) { 1016 splx(s); 1017 return(ENXIO); 1018 } 1019 1020 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 1021 splx(s); 1022 return (error); 1023 } 1024 1025 splx(s); 1026 1027 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1028 return(ENXIO); 1029 1030 /* 1031 * Check for media, and set the appropriate flags. We don't bail 1032 * if we don't have media, but then we don't allow anything but the 1033 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1034 */ 1035 cdcheckmedia(periph); 1036 1037 cam_periph_unlock(periph); 1038 1039 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1040 1041 return (error); 1042 } 1043 1044 static int 1045 cdclose(struct disk *dp) 1046 { 1047 struct cam_periph *periph; 1048 struct cd_softc *softc; 1049 int error; 1050 1051 periph = (struct cam_periph *)dp->d_drv1; 1052 if (periph == NULL) 1053 return (ENXIO); 1054 1055 softc = (struct cd_softc *)periph->softc; 1056 1057 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 1058 return (error); 1059 1060 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1061 cdprevent(periph, PR_ALLOW); 1062 1063 /* 1064 * Since we're closing this CD, mark the blocksize as unavailable. 1065 * It will be marked as available when the CD is opened again. 1066 */ 1067 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 1068 1069 /* 1070 * We'll check the media and toc again at the next open(). 1071 */ 1072 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 1073 1074 cam_periph_unlock(periph); 1075 cam_periph_release(periph); 1076 1077 return (0); 1078 } 1079 1080 static void 1081 cdshorttimeout(void *arg) 1082 { 1083 struct cdchanger *changer; 1084 int s; 1085 1086 s = splsoftcam(); 1087 1088 changer = (struct cdchanger *)arg; 1089 1090 /* Always clear the short timeout flag, since that's what we're in */ 1091 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1092 1093 /* 1094 * Check to see if there is any more pending or outstanding I/O for 1095 * this device. If not, move it out of the active slot. 1096 */ 1097 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1098 && (changer->cur_device->outstanding_cmds == 0)) { 1099 changer->flags |= CHANGER_MANUAL_CALL; 1100 cdrunchangerqueue(changer); 1101 } 1102 1103 splx(s); 1104 } 1105 1106 /* 1107 * This is a wrapper for xpt_schedule. It only applies to changers. 1108 */ 1109 static void 1110 cdschedule(struct cam_periph *periph, int priority) 1111 { 1112 struct cd_softc *softc; 1113 int s; 1114 1115 s = splsoftcam(); 1116 1117 softc = (struct cd_softc *)periph->softc; 1118 1119 /* 1120 * If this device isn't currently queued, and if it isn't 1121 * the active device, then we queue this device and run the 1122 * changer queue if there is no timeout scheduled to do it. 1123 * If this device is the active device, just schedule it 1124 * to run again. If this device is queued, there should be 1125 * a timeout in place already that will make sure it runs. 1126 */ 1127 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1128 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1129 /* 1130 * We don't do anything with the priority here. 1131 * This is strictly a fifo queue. 1132 */ 1133 softc->pinfo.priority = 1; 1134 softc->pinfo.generation = ++softc->changer->devq.generation; 1135 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1136 1137 /* 1138 * Since we just put a device in the changer queue, 1139 * check and see if there is a timeout scheduled for 1140 * this changer. If so, let the timeout handle 1141 * switching this device into the active slot. If 1142 * not, manually call the timeout routine to 1143 * bootstrap things. 1144 */ 1145 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1146 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1147 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1148 softc->changer->flags |= CHANGER_MANUAL_CALL; 1149 cdrunchangerqueue(softc->changer); 1150 } 1151 } else if ((softc->flags & CD_FLAG_ACTIVE) 1152 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1153 xpt_schedule(periph, priority); 1154 1155 splx(s); 1156 1157 } 1158 1159 static void 1160 cdrunchangerqueue(void *arg) 1161 { 1162 struct cd_softc *softc; 1163 struct cdchanger *changer; 1164 int called_from_timeout; 1165 int s; 1166 1167 s = splsoftcam(); 1168 1169 changer = (struct cdchanger *)arg; 1170 1171 /* 1172 * If we have NOT been called from cdstrategy() or cddone(), and 1173 * instead from a timeout routine, go ahead and clear the 1174 * timeout flag. 1175 */ 1176 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1177 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1178 called_from_timeout = 1; 1179 } else 1180 called_from_timeout = 0; 1181 1182 /* Always clear the manual call flag */ 1183 changer->flags &= ~CHANGER_MANUAL_CALL; 1184 1185 /* nothing to do if the queue is empty */ 1186 if (changer->devq.entries <= 0) { 1187 splx(s); 1188 return; 1189 } 1190 1191 /* 1192 * If the changer queue is frozen, that means we have an active 1193 * device. 1194 */ 1195 if (changer->devq.qfrozen_cnt > 0) { 1196 1197 if (changer->cur_device->outstanding_cmds > 0) { 1198 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1199 changer->cur_device->bufs_left = 1200 changer->cur_device->outstanding_cmds; 1201 if (called_from_timeout) { 1202 changer->long_handle = 1203 timeout(cdrunchangerqueue, changer, 1204 changer_max_busy_seconds * hz); 1205 changer->flags |= CHANGER_TIMEOUT_SCHED; 1206 } 1207 splx(s); 1208 return; 1209 } 1210 1211 /* 1212 * We always need to reset the frozen count and clear the 1213 * active flag. 1214 */ 1215 changer->devq.qfrozen_cnt--; 1216 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1217 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1218 1219 /* 1220 * Check to see whether the current device has any I/O left 1221 * to do. If so, requeue it at the end of the queue. If 1222 * not, there is no need to requeue it. 1223 */ 1224 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1225 1226 changer->cur_device->pinfo.generation = 1227 ++changer->devq.generation; 1228 camq_insert(&changer->devq, 1229 (cam_pinfo *)changer->cur_device); 1230 } 1231 } 1232 1233 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1234 1235 changer->cur_device = softc; 1236 1237 changer->devq.qfrozen_cnt++; 1238 softc->flags |= CD_FLAG_ACTIVE; 1239 1240 /* Just in case this device is waiting */ 1241 wakeup(&softc->changer); 1242 xpt_schedule(softc->periph, /*priority*/ 1); 1243 1244 /* 1245 * Get rid of any pending timeouts, and set a flag to schedule new 1246 * ones so this device gets its full time quantum. 1247 */ 1248 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1249 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1250 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1251 } 1252 1253 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1254 untimeout(cdshorttimeout, changer, changer->short_handle); 1255 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1256 } 1257 1258 /* 1259 * We need to schedule timeouts, but we only do this after the 1260 * first transaction has completed. This eliminates the changer 1261 * switch time. 1262 */ 1263 changer->flags |= CHANGER_NEED_TIMEOUT; 1264 1265 splx(s); 1266 } 1267 1268 static void 1269 cdchangerschedule(struct cd_softc *softc) 1270 { 1271 struct cdchanger *changer; 1272 int s; 1273 1274 s = splsoftcam(); 1275 1276 changer = softc->changer; 1277 1278 /* 1279 * If this is a changer, and this is the current device, 1280 * and this device has at least the minimum time quantum to 1281 * run, see if we can switch it out. 1282 */ 1283 if ((softc->flags & CD_FLAG_ACTIVE) 1284 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1285 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1286 /* 1287 * We try three things here. The first is that we 1288 * check to see whether the schedule on completion 1289 * flag is set. If it is, we decrement the number 1290 * of buffers left, and if it's zero, we reschedule. 1291 * Next, we check to see whether the pending buffer 1292 * queue is empty and whether there are no 1293 * outstanding transactions. If so, we reschedule. 1294 * Next, we see if the pending buffer queue is empty. 1295 * If it is, we set the number of buffers left to 1296 * the current active buffer count and set the 1297 * schedule on complete flag. 1298 */ 1299 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1300 if (--softc->bufs_left == 0) { 1301 softc->changer->flags |= 1302 CHANGER_MANUAL_CALL; 1303 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1304 cdrunchangerqueue(softc->changer); 1305 } 1306 } else if ((bioq_first(&softc->bio_queue) == NULL) 1307 && (softc->outstanding_cmds == 0)) { 1308 softc->changer->flags |= CHANGER_MANUAL_CALL; 1309 cdrunchangerqueue(softc->changer); 1310 } 1311 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1312 && (softc->flags & CD_FLAG_ACTIVE)) { 1313 1314 /* 1315 * Now that the first transaction to this 1316 * particular device has completed, we can go ahead 1317 * and schedule our timeouts. 1318 */ 1319 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1320 changer->long_handle = 1321 timeout(cdrunchangerqueue, changer, 1322 changer_max_busy_seconds * hz); 1323 changer->flags |= CHANGER_TIMEOUT_SCHED; 1324 } else 1325 printf("cdchangerschedule: already have a long" 1326 " timeout!\n"); 1327 1328 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1329 changer->short_handle = 1330 timeout(cdshorttimeout, changer, 1331 changer_min_busy_seconds * hz); 1332 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1333 } else 1334 printf("cdchangerschedule: already have a short " 1335 "timeout!\n"); 1336 1337 /* 1338 * We just scheduled timeouts, no need to schedule 1339 * more. 1340 */ 1341 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1342 1343 } 1344 splx(s); 1345 } 1346 1347 static int 1348 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1349 u_int32_t cam_flags, 1350 u_int32_t sense_flags), 1351 u_int32_t cam_flags, u_int32_t sense_flags) 1352 { 1353 struct cd_softc *softc; 1354 struct cam_periph *periph; 1355 int error; 1356 1357 periph = xpt_path_periph(ccb->ccb_h.path); 1358 softc = (struct cd_softc *)periph->softc; 1359 1360 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1361 softc->disk->d_devstat); 1362 1363 if (softc->flags & CD_FLAG_CHANGER) 1364 cdchangerschedule(softc); 1365 1366 return(error); 1367 } 1368 1369 static union ccb * 1370 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1371 { 1372 struct cd_softc *softc; 1373 int s; 1374 1375 softc = (struct cd_softc *)periph->softc; 1376 1377 if (softc->flags & CD_FLAG_CHANGER) { 1378 1379 s = splsoftcam(); 1380 1381 /* 1382 * This should work the first time this device is woken up, 1383 * but just in case it doesn't, we use a while loop. 1384 */ 1385 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1386 /* 1387 * If this changer isn't already queued, queue it up. 1388 */ 1389 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1390 softc->pinfo.priority = 1; 1391 softc->pinfo.generation = 1392 ++softc->changer->devq.generation; 1393 camq_insert(&softc->changer->devq, 1394 (cam_pinfo *)softc); 1395 } 1396 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1397 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1398 && ((softc->changer->flags 1399 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1400 softc->changer->flags |= CHANGER_MANUAL_CALL; 1401 cdrunchangerqueue(softc->changer); 1402 } else 1403 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1404 } 1405 splx(s); 1406 } 1407 return(cam_periph_getccb(periph, priority)); 1408 } 1409 1410 1411 /* 1412 * Actually translate the requested transfer into one the physical driver 1413 * can understand. The transfer is described by a buf and will include 1414 * only one physical transfer. 1415 */ 1416 static void 1417 cdstrategy(struct bio *bp) 1418 { 1419 struct cam_periph *periph; 1420 struct cd_softc *softc; 1421 int s; 1422 1423 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 1424 if (periph == NULL) { 1425 biofinish(bp, NULL, ENXIO); 1426 return; 1427 } 1428 1429 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1430 1431 softc = (struct cd_softc *)periph->softc; 1432 1433 /* 1434 * Mask interrupts so that the pack cannot be invalidated until 1435 * after we are in the queue. Otherwise, we might not properly 1436 * clean up one of the buffers. 1437 */ 1438 s = splbio(); 1439 1440 /* 1441 * If the device has been made invalid, error out 1442 */ 1443 if ((softc->flags & CD_FLAG_INVALID)) { 1444 splx(s); 1445 biofinish(bp, NULL, ENXIO); 1446 return; 1447 } 1448 1449 /* 1450 * If we don't have valid media, look for it before trying to 1451 * schedule the I/O. 1452 */ 1453 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1454 int error; 1455 1456 error = cdcheckmedia(periph); 1457 if (error != 0) { 1458 splx(s); 1459 biofinish(bp, NULL, error); 1460 return; 1461 } 1462 } 1463 1464 /* 1465 * Place it in the queue of disk activities for this disk 1466 */ 1467 bioq_disksort(&softc->bio_queue, bp); 1468 1469 splx(s); 1470 1471 /* 1472 * Schedule ourselves for performing the work. We do things 1473 * differently for changers. 1474 */ 1475 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1476 xpt_schedule(periph, /* XXX priority */1); 1477 else 1478 cdschedule(periph, /* priority */ 1); 1479 1480 return; 1481 } 1482 1483 static void 1484 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1485 { 1486 struct cd_softc *softc; 1487 struct bio *bp; 1488 struct ccb_scsiio *csio; 1489 struct scsi_read_capacity_data *rcap; 1490 int s; 1491 1492 softc = (struct cd_softc *)periph->softc; 1493 1494 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1495 1496 switch (softc->state) { 1497 case CD_STATE_NORMAL: 1498 { 1499 int oldspl; 1500 1501 s = splbio(); 1502 bp = bioq_first(&softc->bio_queue); 1503 if (periph->immediate_priority <= periph->pinfo.priority) { 1504 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1505 1506 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1507 periph_links.sle); 1508 periph->immediate_priority = CAM_PRIORITY_NONE; 1509 splx(s); 1510 wakeup(&periph->ccb_list); 1511 } else if (bp == NULL) { 1512 splx(s); 1513 xpt_release_ccb(start_ccb); 1514 } else { 1515 bioq_remove(&softc->bio_queue, bp); 1516 1517 devstat_start_transaction_bio(softc->disk->d_devstat, bp); 1518 1519 scsi_read_write(&start_ccb->csio, 1520 /*retries*/4, 1521 /* cbfcnp */ cddone, 1522 MSG_SIMPLE_Q_TAG, 1523 /* read */bp->bio_cmd == BIO_READ, 1524 /* byte2 */ 0, 1525 /* minimum_cmd_size */ 10, 1526 /* lba */ bp->bio_offset / 1527 softc->params.blksize, 1528 bp->bio_bcount / softc->params.blksize, 1529 /* data_ptr */ bp->bio_data, 1530 /* dxfer_len */ bp->bio_bcount, 1531 /* sense_len */ SSD_FULL_SIZE, 1532 /* timeout */ 30000); 1533 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1534 1535 1536 /* 1537 * Block out any asyncronous callbacks 1538 * while we touch the pending ccb list. 1539 */ 1540 oldspl = splcam(); 1541 LIST_INSERT_HEAD(&softc->pending_ccbs, 1542 &start_ccb->ccb_h, periph_links.le); 1543 softc->outstanding_cmds++; 1544 splx(oldspl); 1545 1546 /* We expect a unit attention from this device */ 1547 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1548 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1549 softc->flags &= ~CD_FLAG_RETRY_UA; 1550 } 1551 1552 start_ccb->ccb_h.ccb_bp = bp; 1553 bp = bioq_first(&softc->bio_queue); 1554 splx(s); 1555 1556 xpt_action(start_ccb); 1557 } 1558 if (bp != NULL) { 1559 /* Have more work to do, so ensure we stay scheduled */ 1560 xpt_schedule(periph, /* XXX priority */1); 1561 } 1562 break; 1563 } 1564 case CD_STATE_PROBE: 1565 { 1566 1567 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1568 M_TEMP, 1569 M_NOWAIT); 1570 if (rcap == NULL) { 1571 xpt_print_path(periph->path); 1572 printf("cdstart: Couldn't malloc read_capacity data\n"); 1573 /* cd_free_periph??? */ 1574 break; 1575 } 1576 csio = &start_ccb->csio; 1577 scsi_read_capacity(csio, 1578 /*retries*/1, 1579 cddone, 1580 MSG_SIMPLE_Q_TAG, 1581 rcap, 1582 SSD_FULL_SIZE, 1583 /*timeout*/20000); 1584 start_ccb->ccb_h.ccb_bp = NULL; 1585 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1586 xpt_action(start_ccb); 1587 break; 1588 } 1589 } 1590 } 1591 1592 static void 1593 cddone(struct cam_periph *periph, union ccb *done_ccb) 1594 { 1595 struct cd_softc *softc; 1596 struct ccb_scsiio *csio; 1597 1598 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1599 1600 softc = (struct cd_softc *)periph->softc; 1601 csio = &done_ccb->csio; 1602 1603 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1604 case CD_CCB_BUFFER_IO: 1605 { 1606 struct bio *bp; 1607 int error; 1608 int oldspl; 1609 1610 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1611 error = 0; 1612 1613 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1614 int sf; 1615 1616 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1617 sf = SF_RETRY_UA; 1618 else 1619 sf = 0; 1620 1621 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1622 if (error == ERESTART) { 1623 /* 1624 * A retry was scheuled, so 1625 * just return. 1626 */ 1627 return; 1628 } 1629 } 1630 1631 if (error != 0) { 1632 int s; 1633 1634 xpt_print_path(periph->path); 1635 printf("cddone: got error %#x back\n", error); 1636 s = splbio(); 1637 bioq_flush(&softc->bio_queue, NULL, EIO); 1638 splx(s); 1639 bp->bio_resid = bp->bio_bcount; 1640 bp->bio_error = error; 1641 bp->bio_flags |= BIO_ERROR; 1642 cam_release_devq(done_ccb->ccb_h.path, 1643 /*relsim_flags*/0, 1644 /*reduction*/0, 1645 /*timeout*/0, 1646 /*getcount_only*/0); 1647 1648 } else { 1649 bp->bio_resid = csio->resid; 1650 bp->bio_error = 0; 1651 if (bp->bio_resid != 0) { 1652 /* 1653 * Short transfer ??? 1654 * XXX: not sure this is correct for partial 1655 * transfers at EOM 1656 */ 1657 bp->bio_flags |= BIO_ERROR; 1658 } 1659 } 1660 1661 /* 1662 * Block out any asyncronous callbacks 1663 * while we touch the pending ccb list. 1664 */ 1665 oldspl = splcam(); 1666 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1667 softc->outstanding_cmds--; 1668 splx(oldspl); 1669 1670 if (softc->flags & CD_FLAG_CHANGER) 1671 cdchangerschedule(softc); 1672 1673 biofinish(bp, NULL, 0); 1674 break; 1675 } 1676 case CD_CCB_PROBE: 1677 { 1678 struct scsi_read_capacity_data *rdcap; 1679 char announce_buf[120]; /* 1680 * Currently (9/30/97) the 1681 * longest possible announce 1682 * buffer is 108 bytes, for the 1683 * first error case below. 1684 * That is 39 bytes for the 1685 * basic string, 16 bytes for the 1686 * biggest sense key (hardware 1687 * error), 52 bytes for the 1688 * text of the largest sense 1689 * qualifier valid for a CDROM, 1690 * (0x72, 0x03 or 0x04, 1691 * 0x03), and one byte for the 1692 * null terminating character. 1693 * To allow for longer strings, 1694 * the announce buffer is 120 1695 * bytes. 1696 */ 1697 struct cd_params *cdp; 1698 1699 cdp = &softc->params; 1700 1701 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1702 1703 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1704 cdp->blksize = scsi_4btoul (rdcap->length); 1705 1706 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1707 1708 snprintf(announce_buf, sizeof(announce_buf), 1709 "cd present [%lu x %lu byte records]", 1710 cdp->disksize, (u_long)cdp->blksize); 1711 1712 } else { 1713 int error; 1714 /* 1715 * Retry any UNIT ATTENTION type errors. They 1716 * are expected at boot. 1717 */ 1718 error = cderror(done_ccb, CAM_RETRY_SELTO, 1719 SF_RETRY_UA | SF_NO_PRINT); 1720 if (error == ERESTART) { 1721 /* 1722 * A retry was scheuled, so 1723 * just return. 1724 */ 1725 return; 1726 } else if (error != 0) { 1727 1728 struct scsi_sense_data *sense; 1729 int asc, ascq; 1730 int sense_key, error_code; 1731 int have_sense; 1732 cam_status status; 1733 struct ccb_getdev cgd; 1734 1735 /* Don't wedge this device's queue */ 1736 cam_release_devq(done_ccb->ccb_h.path, 1737 /*relsim_flags*/0, 1738 /*reduction*/0, 1739 /*timeout*/0, 1740 /*getcount_only*/0); 1741 1742 status = done_ccb->ccb_h.status; 1743 1744 xpt_setup_ccb(&cgd.ccb_h, 1745 done_ccb->ccb_h.path, 1746 /* priority */ 1); 1747 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1748 xpt_action((union ccb *)&cgd); 1749 1750 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1751 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1752 || ((status & CAM_AUTOSNS_VALID) == 0)) 1753 have_sense = FALSE; 1754 else 1755 have_sense = TRUE; 1756 1757 if (have_sense) { 1758 sense = &csio->sense_data; 1759 scsi_extract_sense(sense, &error_code, 1760 &sense_key, 1761 &asc, &ascq); 1762 } 1763 /* 1764 * Attach to anything that claims to be a 1765 * CDROM or WORM device, as long as it 1766 * doesn't return a "Logical unit not 1767 * supported" (0x25) error. 1768 */ 1769 if ((have_sense) && (asc != 0x25) 1770 && (error_code == SSD_CURRENT_ERROR)) { 1771 const char *sense_key_desc; 1772 const char *asc_desc; 1773 1774 scsi_sense_desc(sense_key, asc, ascq, 1775 &cgd.inq_data, 1776 &sense_key_desc, 1777 &asc_desc); 1778 snprintf(announce_buf, 1779 sizeof(announce_buf), 1780 "Attempt to query device " 1781 "size failed: %s, %s", 1782 sense_key_desc, 1783 asc_desc); 1784 } else if ((have_sense == 0) 1785 && ((status & CAM_STATUS_MASK) == 1786 CAM_SCSI_STATUS_ERROR) 1787 && (csio->scsi_status == 1788 SCSI_STATUS_BUSY)) { 1789 snprintf(announce_buf, 1790 sizeof(announce_buf), 1791 "Attempt to query device " 1792 "size failed: SCSI Status: %s", 1793 scsi_status_string(csio)); 1794 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) { 1795 /* 1796 * We only print out an error for 1797 * CDROM type devices. For WORM 1798 * devices, we don't print out an 1799 * error since a few WORM devices 1800 * don't support CDROM commands. 1801 * If we have sense information, go 1802 * ahead and print it out. 1803 * Otherwise, just say that we 1804 * couldn't attach. 1805 */ 1806 1807 /* 1808 * Just print out the error, not 1809 * the full probe message, when we 1810 * don't attach. 1811 */ 1812 if (have_sense) 1813 scsi_sense_print( 1814 &done_ccb->csio); 1815 else { 1816 xpt_print_path(periph->path); 1817 printf("got CAM status %#x\n", 1818 done_ccb->ccb_h.status); 1819 } 1820 xpt_print_path(periph->path); 1821 printf("fatal error, failed" 1822 " to attach to device\n"); 1823 1824 /* 1825 * Invalidate this peripheral. 1826 */ 1827 cam_periph_invalidate(periph); 1828 1829 announce_buf[0] = '\0'; 1830 } else { 1831 1832 /* 1833 * Invalidate this peripheral. 1834 */ 1835 cam_periph_invalidate(periph); 1836 announce_buf[0] = '\0'; 1837 } 1838 } 1839 } 1840 free(rdcap, M_TEMP); 1841 if (announce_buf[0] != '\0') { 1842 xpt_announce_periph(periph, announce_buf); 1843 if (softc->flags & CD_FLAG_CHANGER) 1844 cdchangerschedule(softc); 1845 /* 1846 * Create our sysctl variables, now that we know 1847 * we have successfully attached. 1848 */ 1849 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1850 } 1851 softc->state = CD_STATE_NORMAL; 1852 /* 1853 * Since our peripheral may be invalidated by an error 1854 * above or an external event, we must release our CCB 1855 * before releasing the probe lock on the peripheral. 1856 * The peripheral will only go away once the last lock 1857 * is removed, and we need it around for the CCB release 1858 * operation. 1859 */ 1860 xpt_release_ccb(done_ccb); 1861 cam_periph_unlock(periph); 1862 return; 1863 } 1864 case CD_CCB_WAITING: 1865 { 1866 /* Caller will release the CCB */ 1867 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1868 ("trying to wakeup ccbwait\n")); 1869 1870 wakeup(&done_ccb->ccb_h.cbfcnp); 1871 return; 1872 } 1873 default: 1874 break; 1875 } 1876 xpt_release_ccb(done_ccb); 1877 } 1878 1879 static union cd_pages * 1880 cdgetpage(struct cd_mode_params *mode_params) 1881 { 1882 union cd_pages *page; 1883 1884 if (mode_params->cdb_size == 10) 1885 page = (union cd_pages *)find_mode_page_10( 1886 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1887 else 1888 page = (union cd_pages *)find_mode_page_6( 1889 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1890 1891 return (page); 1892 } 1893 1894 static int 1895 cdgetpagesize(int page_num) 1896 { 1897 int i; 1898 1899 for (i = 0; i < (sizeof(cd_page_size_table)/ 1900 sizeof(cd_page_size_table[0])); i++) { 1901 if (cd_page_size_table[i].page == page_num) 1902 return (cd_page_size_table[i].page_size); 1903 } 1904 1905 return (-1); 1906 } 1907 1908 static int 1909 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 1910 { 1911 1912 struct cam_periph *periph; 1913 struct cd_softc *softc; 1914 int error, nocopyout; 1915 1916 periph = (struct cam_periph *)dp->d_drv1; 1917 if (periph == NULL) 1918 return(ENXIO); 1919 1920 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1921 1922 softc = (struct cd_softc *)periph->softc; 1923 1924 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1925 ("trying to do ioctl %#lx\n", cmd)); 1926 1927 error = cam_periph_lock(periph, PRIBIO | PCATCH); 1928 1929 if (error != 0) 1930 return(error); 1931 /* 1932 * If we don't have media loaded, check for it. If still don't 1933 * have media loaded, we can only do a load or eject. 1934 * 1935 * We only care whether media is loaded if this is a cd-specific ioctl 1936 * (thus the IOCGROUP check below). Note that this will break if 1937 * anyone adds any ioctls into the switch statement below that don't 1938 * have their ioctl group set to 'c'. 1939 */ 1940 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1941 && ((cmd != CDIOCCLOSE) 1942 && (cmd != CDIOCEJECT)) 1943 && (IOCGROUP(cmd) == 'c')) { 1944 error = cdcheckmedia(periph); 1945 if (error != 0) { 1946 cam_periph_unlock(periph); 1947 return (error); 1948 } 1949 } 1950 1951 nocopyout = 0; 1952 switch (cmd) { 1953 1954 case CDIOCPLAYTRACKS: 1955 { 1956 struct ioc_play_track *args 1957 = (struct ioc_play_track *) addr; 1958 struct cd_mode_params params; 1959 union cd_pages *page; 1960 1961 params.alloc_len = sizeof(union cd_mode_data_6_10); 1962 params.mode_buf = malloc(params.alloc_len, M_TEMP, 1963 M_WAITOK | M_ZERO); 1964 1965 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1966 ("trying to do CDIOCPLAYTRACKS\n")); 1967 1968 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 1969 if (error) { 1970 free(params.mode_buf, M_TEMP); 1971 break; 1972 } 1973 page = cdgetpage(¶ms); 1974 1975 page->audio.flags &= ~CD_PA_SOTC; 1976 page->audio.flags |= CD_PA_IMMED; 1977 error = cdsetmode(periph, ¶ms); 1978 free(params.mode_buf, M_TEMP); 1979 if (error) 1980 break; 1981 1982 /* 1983 * This was originally implemented with the PLAY 1984 * AUDIO TRACK INDEX command, but that command was 1985 * deprecated after SCSI-2. Most (all?) SCSI CDROM 1986 * drives support it but ATAPI and ATAPI-derivative 1987 * drives don't seem to support it. So we keep a 1988 * cache of the table of contents and translate 1989 * track numbers to MSF format. 1990 */ 1991 if (softc->flags & CD_FLAG_VALID_TOC) { 1992 union msf_lba *sentry, *eentry; 1993 int st, et; 1994 1995 if (args->end_track < 1996 softc->toc.header.ending_track + 1) 1997 args->end_track++; 1998 if (args->end_track > 1999 softc->toc.header.ending_track + 1) 2000 args->end_track = 2001 softc->toc.header.ending_track + 1; 2002 st = args->start_track - 2003 softc->toc.header.starting_track; 2004 et = args->end_track - 2005 softc->toc.header.starting_track; 2006 if ((st < 0) 2007 || (et < 0) 2008 || (st > (softc->toc.header.ending_track - 2009 softc->toc.header.starting_track))) { 2010 error = EINVAL; 2011 break; 2012 } 2013 sentry = &softc->toc.entries[st].addr; 2014 eentry = &softc->toc.entries[et].addr; 2015 error = cdplaymsf(periph, 2016 sentry->msf.minute, 2017 sentry->msf.second, 2018 sentry->msf.frame, 2019 eentry->msf.minute, 2020 eentry->msf.second, 2021 eentry->msf.frame); 2022 } else { 2023 /* 2024 * If we don't have a valid TOC, try the 2025 * play track index command. It is part of 2026 * the SCSI-2 spec, but was removed in the 2027 * MMC specs. ATAPI and ATAPI-derived 2028 * drives don't support it. 2029 */ 2030 if (softc->quirks & CD_Q_BCD_TRACKS) { 2031 args->start_track = 2032 bin2bcd(args->start_track); 2033 args->end_track = 2034 bin2bcd(args->end_track); 2035 } 2036 error = cdplaytracks(periph, 2037 args->start_track, 2038 args->start_index, 2039 args->end_track, 2040 args->end_index); 2041 } 2042 } 2043 break; 2044 case CDIOCPLAYMSF: 2045 { 2046 struct ioc_play_msf *args 2047 = (struct ioc_play_msf *) addr; 2048 struct cd_mode_params params; 2049 union cd_pages *page; 2050 2051 params.alloc_len = sizeof(union cd_mode_data_6_10); 2052 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2053 M_WAITOK | M_ZERO); 2054 2055 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2056 ("trying to do CDIOCPLAYMSF\n")); 2057 2058 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2059 if (error) { 2060 free(params.mode_buf, M_TEMP); 2061 break; 2062 } 2063 page = cdgetpage(¶ms); 2064 2065 page->audio.flags &= ~CD_PA_SOTC; 2066 page->audio.flags |= CD_PA_IMMED; 2067 error = cdsetmode(periph, ¶ms); 2068 free(params.mode_buf, M_TEMP); 2069 if (error) 2070 break; 2071 error = cdplaymsf(periph, 2072 args->start_m, 2073 args->start_s, 2074 args->start_f, 2075 args->end_m, 2076 args->end_s, 2077 args->end_f); 2078 } 2079 break; 2080 case CDIOCPLAYBLOCKS: 2081 { 2082 struct ioc_play_blocks *args 2083 = (struct ioc_play_blocks *) addr; 2084 struct cd_mode_params params; 2085 union cd_pages *page; 2086 2087 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2088 ("trying to do CDIOCPLAYBLOCKS\n")); 2089 2090 params.alloc_len = sizeof(union cd_mode_data_6_10); 2091 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2092 M_WAITOK | M_ZERO); 2093 2094 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2095 if (error) { 2096 free(params.mode_buf, M_TEMP); 2097 break; 2098 } 2099 page = cdgetpage(¶ms); 2100 2101 page->audio.flags &= ~CD_PA_SOTC; 2102 page->audio.flags |= CD_PA_IMMED; 2103 error = cdsetmode(periph, ¶ms); 2104 free(params.mode_buf, M_TEMP); 2105 if (error) 2106 break; 2107 error = cdplay(periph, args->blk, args->len); 2108 } 2109 break; 2110 case CDIOCREADSUBCHANNEL_SYSSPACE: 2111 nocopyout = 1; 2112 /* Fallthrough */ 2113 case CDIOCREADSUBCHANNEL: 2114 { 2115 struct ioc_read_subchannel *args 2116 = (struct ioc_read_subchannel *) addr; 2117 struct cd_sub_channel_info *data; 2118 u_int32_t len = args->data_len; 2119 2120 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2121 ("trying to do CDIOCREADSUBCHANNEL\n")); 2122 2123 data = malloc(sizeof(struct cd_sub_channel_info), 2124 M_TEMP, M_WAITOK); 2125 2126 if ((len > sizeof(struct cd_sub_channel_info)) || 2127 (len < sizeof(struct cd_sub_channel_header))) { 2128 printf( 2129 "scsi_cd: cdioctl: " 2130 "cdioreadsubchannel: error, len=%d\n", 2131 len); 2132 error = EINVAL; 2133 free(data, M_TEMP); 2134 break; 2135 } 2136 2137 if (softc->quirks & CD_Q_BCD_TRACKS) 2138 args->track = bin2bcd(args->track); 2139 2140 error = cdreadsubchannel(periph, args->address_format, 2141 args->data_format, args->track, data, len); 2142 2143 if (error) { 2144 free(data, M_TEMP); 2145 break; 2146 } 2147 if (softc->quirks & CD_Q_BCD_TRACKS) 2148 data->what.track_info.track_number = 2149 bcd2bin(data->what.track_info.track_number); 2150 len = min(len, ((data->header.data_len[0] << 8) + 2151 data->header.data_len[1] + 2152 sizeof(struct cd_sub_channel_header))); 2153 if (nocopyout == 0) { 2154 if (copyout(data, args->data, len) != 0) { 2155 error = EFAULT; 2156 } 2157 } else { 2158 bcopy(data, args->data, len); 2159 } 2160 free(data, M_TEMP); 2161 } 2162 break; 2163 2164 case CDIOREADTOCHEADER: 2165 { 2166 struct ioc_toc_header *th; 2167 2168 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2169 ("trying to do CDIOREADTOCHEADER\n")); 2170 2171 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 2172 M_WAITOK); 2173 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2174 sizeof (*th), /*sense_flags*/0); 2175 if (error) { 2176 free(th, M_TEMP); 2177 break; 2178 } 2179 if (softc->quirks & CD_Q_BCD_TRACKS) { 2180 /* we are going to have to convert the BCD 2181 * encoding on the cd to what is expected 2182 */ 2183 th->starting_track = 2184 bcd2bin(th->starting_track); 2185 th->ending_track = bcd2bin(th->ending_track); 2186 } 2187 th->len = ntohs(th->len); 2188 bcopy(th, addr, sizeof(*th)); 2189 free(th, M_TEMP); 2190 } 2191 break; 2192 case CDIOREADTOCENTRYS: 2193 { 2194 struct cd_tocdata *data; 2195 struct cd_toc_single *lead; 2196 struct ioc_read_toc_entry *te = 2197 (struct ioc_read_toc_entry *) addr; 2198 struct ioc_toc_header *th; 2199 u_int32_t len, readlen, idx, num; 2200 u_int32_t starting_track = te->starting_track; 2201 2202 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2203 ("trying to do CDIOREADTOCENTRYS\n")); 2204 2205 data = malloc(sizeof(*data), M_TEMP, M_WAITOK); 2206 lead = malloc(sizeof(*lead), M_TEMP, M_WAITOK); 2207 2208 if (te->data_len < sizeof(struct cd_toc_entry) 2209 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2210 || (te->address_format != CD_MSF_FORMAT 2211 && te->address_format != CD_LBA_FORMAT)) { 2212 error = EINVAL; 2213 printf("scsi_cd: error in readtocentries, " 2214 "returning EINVAL\n"); 2215 free(data, M_TEMP); 2216 free(lead, M_TEMP); 2217 break; 2218 } 2219 2220 th = &data->header; 2221 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2222 sizeof (*th), /*sense_flags*/0); 2223 if (error) { 2224 free(data, M_TEMP); 2225 free(lead, M_TEMP); 2226 break; 2227 } 2228 2229 if (softc->quirks & CD_Q_BCD_TRACKS) { 2230 /* we are going to have to convert the BCD 2231 * encoding on the cd to what is expected 2232 */ 2233 th->starting_track = 2234 bcd2bin(th->starting_track); 2235 th->ending_track = bcd2bin(th->ending_track); 2236 } 2237 2238 if (starting_track == 0) 2239 starting_track = th->starting_track; 2240 else if (starting_track == LEADOUT) 2241 starting_track = th->ending_track + 1; 2242 else if (starting_track < th->starting_track || 2243 starting_track > th->ending_track + 1) { 2244 printf("scsi_cd: error in readtocentries, " 2245 "returning EINVAL\n"); 2246 free(data, M_TEMP); 2247 free(lead, M_TEMP); 2248 error = EINVAL; 2249 break; 2250 } 2251 2252 /* calculate reading length without leadout entry */ 2253 readlen = (th->ending_track - starting_track + 1) * 2254 sizeof(struct cd_toc_entry); 2255 2256 /* and with leadout entry */ 2257 len = readlen + sizeof(struct cd_toc_entry); 2258 if (te->data_len < len) { 2259 len = te->data_len; 2260 if (readlen > len) 2261 readlen = len; 2262 } 2263 if (len > sizeof(data->entries)) { 2264 printf("scsi_cd: error in readtocentries, " 2265 "returning EINVAL\n"); 2266 error = EINVAL; 2267 free(data, M_TEMP); 2268 free(lead, M_TEMP); 2269 break; 2270 } 2271 num = len / sizeof(struct cd_toc_entry); 2272 2273 if (readlen > 0) { 2274 error = cdreadtoc(periph, te->address_format, 2275 starting_track, 2276 (u_int8_t *)data, 2277 readlen + sizeof (*th), 2278 /*sense_flags*/0); 2279 if (error) { 2280 free(data, M_TEMP); 2281 free(lead, M_TEMP); 2282 break; 2283 } 2284 } 2285 2286 /* make leadout entry if needed */ 2287 idx = starting_track + num - 1; 2288 if (softc->quirks & CD_Q_BCD_TRACKS) 2289 th->ending_track = bcd2bin(th->ending_track); 2290 if (idx == th->ending_track + 1) { 2291 error = cdreadtoc(periph, te->address_format, 2292 LEADOUT, (u_int8_t *)lead, 2293 sizeof(*lead), 2294 /*sense_flags*/0); 2295 if (error) { 2296 free(data, M_TEMP); 2297 free(lead, M_TEMP); 2298 break; 2299 } 2300 data->entries[idx - starting_track] = 2301 lead->entry; 2302 } 2303 if (softc->quirks & CD_Q_BCD_TRACKS) { 2304 for (idx = 0; idx < num - 1; idx++) { 2305 data->entries[idx].track = 2306 bcd2bin(data->entries[idx].track); 2307 } 2308 } 2309 2310 error = copyout(data->entries, te->data, len); 2311 free(data, M_TEMP); 2312 free(lead, M_TEMP); 2313 } 2314 break; 2315 case CDIOREADTOCENTRY: 2316 { 2317 struct cd_toc_single *data; 2318 struct ioc_read_toc_single_entry *te = 2319 (struct ioc_read_toc_single_entry *) addr; 2320 struct ioc_toc_header *th; 2321 u_int32_t track; 2322 2323 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2324 ("trying to do CDIOREADTOCENTRY\n")); 2325 2326 data = malloc(sizeof(*data), M_TEMP, M_WAITOK); 2327 2328 if (te->address_format != CD_MSF_FORMAT 2329 && te->address_format != CD_LBA_FORMAT) { 2330 printf("error in readtocentry, " 2331 " returning EINVAL\n"); 2332 free(data, M_TEMP); 2333 error = EINVAL; 2334 break; 2335 } 2336 2337 th = &data->header; 2338 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2339 sizeof (*th), /*sense_flags*/0); 2340 if (error) { 2341 free(data, M_TEMP); 2342 break; 2343 } 2344 2345 if (softc->quirks & CD_Q_BCD_TRACKS) { 2346 /* we are going to have to convert the BCD 2347 * encoding on the cd to what is expected 2348 */ 2349 th->starting_track = 2350 bcd2bin(th->starting_track); 2351 th->ending_track = bcd2bin(th->ending_track); 2352 } 2353 track = te->track; 2354 if (track == 0) 2355 track = th->starting_track; 2356 else if (track == LEADOUT) 2357 /* OK */; 2358 else if (track < th->starting_track || 2359 track > th->ending_track + 1) { 2360 printf("error in readtocentry, " 2361 " returning EINVAL\n"); 2362 free(data, M_TEMP); 2363 error = EINVAL; 2364 break; 2365 } 2366 2367 error = cdreadtoc(periph, te->address_format, track, 2368 (u_int8_t *)data, sizeof(*data), 2369 /*sense_flags*/0); 2370 if (error) { 2371 free(data, M_TEMP); 2372 break; 2373 } 2374 2375 if (softc->quirks & CD_Q_BCD_TRACKS) 2376 data->entry.track = bcd2bin(data->entry.track); 2377 bcopy(&data->entry, &te->entry, 2378 sizeof(struct cd_toc_entry)); 2379 free(data, M_TEMP); 2380 } 2381 break; 2382 case CDIOCSETPATCH: 2383 { 2384 struct ioc_patch *arg = (struct ioc_patch *)addr; 2385 struct cd_mode_params params; 2386 union cd_pages *page; 2387 2388 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2389 ("trying to do CDIOCSETPATCH\n")); 2390 2391 params.alloc_len = sizeof(union cd_mode_data_6_10); 2392 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2393 M_WAITOK | M_ZERO); 2394 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2395 if (error) { 2396 free(params.mode_buf, M_TEMP); 2397 break; 2398 } 2399 page = cdgetpage(¶ms); 2400 2401 page->audio.port[LEFT_PORT].channels = 2402 arg->patch[0]; 2403 page->audio.port[RIGHT_PORT].channels = 2404 arg->patch[1]; 2405 page->audio.port[2].channels = arg->patch[2]; 2406 page->audio.port[3].channels = arg->patch[3]; 2407 error = cdsetmode(periph, ¶ms); 2408 free(params.mode_buf, M_TEMP); 2409 } 2410 break; 2411 case CDIOCGETVOL: 2412 { 2413 struct ioc_vol *arg = (struct ioc_vol *) addr; 2414 struct cd_mode_params params; 2415 union cd_pages *page; 2416 2417 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2418 ("trying to do CDIOCGETVOL\n")); 2419 2420 params.alloc_len = sizeof(union cd_mode_data_6_10); 2421 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2422 M_WAITOK | M_ZERO); 2423 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2424 if (error) { 2425 free(params.mode_buf, M_TEMP); 2426 break; 2427 } 2428 page = cdgetpage(¶ms); 2429 2430 arg->vol[LEFT_PORT] = 2431 page->audio.port[LEFT_PORT].volume; 2432 arg->vol[RIGHT_PORT] = 2433 page->audio.port[RIGHT_PORT].volume; 2434 arg->vol[2] = page->audio.port[2].volume; 2435 arg->vol[3] = page->audio.port[3].volume; 2436 free(params.mode_buf, M_TEMP); 2437 } 2438 break; 2439 case CDIOCSETVOL: 2440 { 2441 struct ioc_vol *arg = (struct ioc_vol *) addr; 2442 struct cd_mode_params params; 2443 union cd_pages *page; 2444 2445 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2446 ("trying to do CDIOCSETVOL\n")); 2447 2448 params.alloc_len = sizeof(union cd_mode_data_6_10); 2449 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2450 M_WAITOK | M_ZERO); 2451 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2452 if (error) { 2453 free(params.mode_buf, M_TEMP); 2454 break; 2455 } 2456 page = cdgetpage(¶ms); 2457 2458 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2459 page->audio.port[LEFT_PORT].volume = 2460 arg->vol[LEFT_PORT]; 2461 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2462 page->audio.port[RIGHT_PORT].volume = 2463 arg->vol[RIGHT_PORT]; 2464 page->audio.port[2].volume = arg->vol[2]; 2465 page->audio.port[3].volume = arg->vol[3]; 2466 error = cdsetmode(periph, ¶ms); 2467 free(params.mode_buf, M_TEMP); 2468 } 2469 break; 2470 case CDIOCSETMONO: 2471 { 2472 struct cd_mode_params params; 2473 union cd_pages *page; 2474 2475 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2476 ("trying to do CDIOCSETMONO\n")); 2477 2478 params.alloc_len = sizeof(union cd_mode_data_6_10); 2479 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2480 M_WAITOK | M_ZERO); 2481 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2482 if (error) { 2483 free(params.mode_buf, M_TEMP); 2484 break; 2485 } 2486 page = cdgetpage(¶ms); 2487 2488 page->audio.port[LEFT_PORT].channels = 2489 LEFT_CHANNEL | RIGHT_CHANNEL; 2490 page->audio.port[RIGHT_PORT].channels = 2491 LEFT_CHANNEL | RIGHT_CHANNEL; 2492 page->audio.port[2].channels = 0; 2493 page->audio.port[3].channels = 0; 2494 error = cdsetmode(periph, ¶ms); 2495 free(params.mode_buf, M_TEMP); 2496 } 2497 break; 2498 case CDIOCSETSTEREO: 2499 { 2500 struct cd_mode_params params; 2501 union cd_pages *page; 2502 2503 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2504 ("trying to do CDIOCSETSTEREO\n")); 2505 2506 params.alloc_len = sizeof(union cd_mode_data_6_10); 2507 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2508 M_WAITOK | M_ZERO); 2509 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2510 if (error) { 2511 free(params.mode_buf, M_TEMP); 2512 break; 2513 } 2514 page = cdgetpage(¶ms); 2515 2516 page->audio.port[LEFT_PORT].channels = 2517 LEFT_CHANNEL; 2518 page->audio.port[RIGHT_PORT].channels = 2519 RIGHT_CHANNEL; 2520 page->audio.port[2].channels = 0; 2521 page->audio.port[3].channels = 0; 2522 error = cdsetmode(periph, ¶ms); 2523 free(params.mode_buf, M_TEMP); 2524 } 2525 break; 2526 case CDIOCSETMUTE: 2527 { 2528 struct cd_mode_params params; 2529 union cd_pages *page; 2530 2531 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2532 ("trying to do CDIOCSETMUTE\n")); 2533 2534 params.alloc_len = sizeof(union cd_mode_data_6_10); 2535 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2536 M_WAITOK | M_ZERO); 2537 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2538 if (error) { 2539 free(¶ms, M_TEMP); 2540 break; 2541 } 2542 page = cdgetpage(¶ms); 2543 2544 page->audio.port[LEFT_PORT].channels = 0; 2545 page->audio.port[RIGHT_PORT].channels = 0; 2546 page->audio.port[2].channels = 0; 2547 page->audio.port[3].channels = 0; 2548 error = cdsetmode(periph, ¶ms); 2549 free(params.mode_buf, M_TEMP); 2550 } 2551 break; 2552 case CDIOCSETLEFT: 2553 { 2554 struct cd_mode_params params; 2555 union cd_pages *page; 2556 2557 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2558 ("trying to do CDIOCSETLEFT\n")); 2559 2560 params.alloc_len = sizeof(union cd_mode_data_6_10); 2561 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2562 M_WAITOK | M_ZERO); 2563 2564 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2565 if (error) { 2566 free(params.mode_buf, M_TEMP); 2567 break; 2568 } 2569 page = cdgetpage(¶ms); 2570 2571 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2572 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2573 page->audio.port[2].channels = 0; 2574 page->audio.port[3].channels = 0; 2575 error = cdsetmode(periph, ¶ms); 2576 free(params.mode_buf, M_TEMP); 2577 } 2578 break; 2579 case CDIOCSETRIGHT: 2580 { 2581 struct cd_mode_params params; 2582 union cd_pages *page; 2583 2584 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2585 ("trying to do CDIOCSETRIGHT\n")); 2586 2587 params.alloc_len = sizeof(union cd_mode_data_6_10); 2588 params.mode_buf = malloc(params.alloc_len, M_TEMP, 2589 M_WAITOK | M_ZERO); 2590 2591 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2592 if (error) { 2593 free(params.mode_buf, M_TEMP); 2594 break; 2595 } 2596 page = cdgetpage(¶ms); 2597 2598 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2599 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2600 page->audio.port[2].channels = 0; 2601 page->audio.port[3].channels = 0; 2602 error = cdsetmode(periph, ¶ms); 2603 free(params.mode_buf, M_TEMP); 2604 } 2605 break; 2606 case CDIOCRESUME: 2607 error = cdpause(periph, 1); 2608 break; 2609 case CDIOCPAUSE: 2610 error = cdpause(periph, 0); 2611 break; 2612 case CDIOCSTART: 2613 error = cdstartunit(periph, 0); 2614 break; 2615 case CDIOCCLOSE: 2616 error = cdstartunit(periph, 1); 2617 break; 2618 case CDIOCSTOP: 2619 error = cdstopunit(periph, 0); 2620 break; 2621 case CDIOCEJECT: 2622 error = cdstopunit(periph, 1); 2623 break; 2624 case CDIOCALLOW: 2625 cdprevent(periph, PR_ALLOW); 2626 break; 2627 case CDIOCPREVENT: 2628 cdprevent(periph, PR_PREVENT); 2629 break; 2630 case CDIOCSETDEBUG: 2631 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2632 error = ENOTTY; 2633 break; 2634 case CDIOCCLRDEBUG: 2635 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2636 error = ENOTTY; 2637 break; 2638 case CDIOCRESET: 2639 /* return (cd_reset(periph)); */ 2640 error = ENOTTY; 2641 break; 2642 case CDRIOCREADSPEED: 2643 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2644 break; 2645 case CDRIOCWRITESPEED: 2646 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2647 break; 2648 case DVDIOCSENDKEY: 2649 case DVDIOCREPORTKEY: { 2650 struct dvd_authinfo *authinfo; 2651 2652 authinfo = (struct dvd_authinfo *)addr; 2653 2654 if (cmd == DVDIOCREPORTKEY) 2655 error = cdreportkey(periph, authinfo); 2656 else 2657 error = cdsendkey(periph, authinfo); 2658 break; 2659 } 2660 case DVDIOCREADSTRUCTURE: { 2661 struct dvd_struct *dvdstruct; 2662 2663 dvdstruct = (struct dvd_struct *)addr; 2664 2665 error = cdreaddvdstructure(periph, dvdstruct); 2666 2667 break; 2668 } 2669 default: 2670 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2671 break; 2672 } 2673 2674 cam_periph_unlock(periph); 2675 2676 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2677 if (error && bootverbose) { 2678 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error); 2679 } 2680 2681 return (error); 2682 } 2683 2684 static void 2685 cdprevent(struct cam_periph *periph, int action) 2686 { 2687 union ccb *ccb; 2688 struct cd_softc *softc; 2689 int error; 2690 2691 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2692 2693 softc = (struct cd_softc *)periph->softc; 2694 2695 if (((action == PR_ALLOW) 2696 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2697 || ((action == PR_PREVENT) 2698 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2699 return; 2700 } 2701 2702 ccb = cdgetccb(periph, /* priority */ 1); 2703 2704 scsi_prevent(&ccb->csio, 2705 /*retries*/ 1, 2706 cddone, 2707 MSG_SIMPLE_Q_TAG, 2708 action, 2709 SSD_FULL_SIZE, 2710 /* timeout */60000); 2711 2712 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2713 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2714 2715 xpt_release_ccb(ccb); 2716 2717 if (error == 0) { 2718 if (action == PR_ALLOW) 2719 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2720 else 2721 softc->flags |= CD_FLAG_DISC_LOCKED; 2722 } 2723 } 2724 2725 /* 2726 * XXX: the disk media and sector size is only really able to change 2727 * XXX: while the device is closed. 2728 */ 2729 static int 2730 cdcheckmedia(struct cam_periph *periph) 2731 { 2732 struct cd_softc *softc; 2733 struct ioc_toc_header *toch; 2734 struct cd_toc_single leadout; 2735 u_int32_t size, toclen; 2736 int error, num_entries, cdindex; 2737 2738 softc = (struct cd_softc *)periph->softc; 2739 2740 cdprevent(periph, PR_PREVENT); 2741 softc->disk->d_maxsize = DFLTPHYS; 2742 softc->disk->d_sectorsize = 2048; 2743 softc->disk->d_mediasize = 0; 2744 2745 /* 2746 * Get the disc size and block size. If we can't get it, we don't 2747 * have media, most likely. 2748 */ 2749 if ((error = cdsize(periph, &size)) != 0) { 2750 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2751 cdprevent(periph, PR_ALLOW); 2752 return (error); 2753 } else 2754 softc->flags |= CD_FLAG_VALID_MEDIA; 2755 2756 /* 2757 * Now we check the table of contents. This (currently) is only 2758 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2759 * things like present a separate entry in /dev for each track, 2760 * like that acd(4) driver does. 2761 */ 2762 bzero(&softc->toc, sizeof(softc->toc)); 2763 toch = &softc->toc.header; 2764 /* 2765 * We will get errors here for media that doesn't have a table of 2766 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2767 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2768 * has not been recorded (no complete session) and the Format codes 2769 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2770 * with an INVALID FIELD IN CDB. Devices that are not capable of 2771 * reading an incomplete session on DDC/CD-R/RW media shall report 2772 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2773 * 2774 * So this isn't fatal if we can't read the table of contents, it 2775 * just means that the user won't be able to issue the play tracks 2776 * ioctl, and likely lots of other stuff won't work either. They 2777 * need to burn the CD before we can do a whole lot with it. So 2778 * we don't print anything here if we get an error back. 2779 */ 2780 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2781 SF_NO_PRINT); 2782 /* 2783 * Errors in reading the table of contents aren't fatal, we just 2784 * won't have a valid table of contents cached. 2785 */ 2786 if (error != 0) { 2787 error = 0; 2788 bzero(&softc->toc, sizeof(softc->toc)); 2789 goto bailout; 2790 } 2791 2792 if (softc->quirks & CD_Q_BCD_TRACKS) { 2793 toch->starting_track = bcd2bin(toch->starting_track); 2794 toch->ending_track = bcd2bin(toch->ending_track); 2795 } 2796 2797 /* Number of TOC entries, plus leadout */ 2798 num_entries = (toch->ending_track - toch->starting_track) + 2; 2799 2800 if (num_entries <= 0) 2801 goto bailout; 2802 2803 toclen = num_entries * sizeof(struct cd_toc_entry); 2804 2805 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2806 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2807 SF_NO_PRINT); 2808 if (error != 0) { 2809 error = 0; 2810 bzero(&softc->toc, sizeof(softc->toc)); 2811 goto bailout; 2812 } 2813 2814 if (softc->quirks & CD_Q_BCD_TRACKS) { 2815 toch->starting_track = bcd2bin(toch->starting_track); 2816 toch->ending_track = bcd2bin(toch->ending_track); 2817 } 2818 /* 2819 * XXX KDM is this necessary? Probably only if the drive doesn't 2820 * return leadout information with the table of contents. 2821 */ 2822 cdindex = toch->starting_track + num_entries -1; 2823 if (cdindex == toch->ending_track + 1) { 2824 2825 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2826 (u_int8_t *)&leadout, sizeof(leadout), 2827 SF_NO_PRINT); 2828 if (error != 0) { 2829 error = 0; 2830 goto bailout; 2831 } 2832 softc->toc.entries[cdindex - toch->starting_track] = 2833 leadout.entry; 2834 } 2835 if (softc->quirks & CD_Q_BCD_TRACKS) { 2836 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) { 2837 softc->toc.entries[cdindex].track = 2838 bcd2bin(softc->toc.entries[cdindex].track); 2839 } 2840 } 2841 2842 softc->flags |= CD_FLAG_VALID_TOC; 2843 softc->disk->d_maxsize = DFLTPHYS; 2844 softc->disk->d_sectorsize = softc->params.blksize; 2845 softc->disk->d_mediasize = 2846 (off_t)softc->params.blksize * softc->params.disksize; 2847 2848 bailout: 2849 2850 /* 2851 * We unconditionally (re)set the blocksize each time the 2852 * CD device is opened. This is because the CD can change, 2853 * and therefore the blocksize might change. 2854 * XXX problems here if some slice or partition is still 2855 * open with the old size? 2856 */ 2857 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0) 2858 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 2859 softc->disk->d_devstat->block_size = softc->params.blksize; 2860 2861 return (error); 2862 } 2863 2864 static int 2865 cdsize(struct cam_periph *periph, u_int32_t *size) 2866 { 2867 struct cd_softc *softc; 2868 union ccb *ccb; 2869 struct scsi_read_capacity_data *rcap_buf; 2870 int error; 2871 2872 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2873 2874 softc = (struct cd_softc *)periph->softc; 2875 2876 ccb = cdgetccb(periph, /* priority */ 1); 2877 2878 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2879 M_TEMP, M_WAITOK); 2880 2881 scsi_read_capacity(&ccb->csio, 2882 /*retries*/ 1, 2883 cddone, 2884 MSG_SIMPLE_Q_TAG, 2885 rcap_buf, 2886 SSD_FULL_SIZE, 2887 /* timeout */20000); 2888 2889 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2890 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2891 2892 xpt_release_ccb(ccb); 2893 2894 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2895 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2896 /* 2897 * SCSI-3 mandates that the reported blocksize shall be 2048. 2898 * Older drives sometimes report funny values, trim it down to 2899 * 2048, or other parts of the kernel will get confused. 2900 * 2901 * XXX we leave drives alone that might report 512 bytes, as 2902 * well as drives reporting more weird sizes like perhaps 4K. 2903 */ 2904 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 2905 softc->params.blksize = 2048; 2906 2907 free(rcap_buf, M_TEMP); 2908 *size = softc->params.disksize; 2909 2910 return (error); 2911 2912 } 2913 2914 static int 2915 cd6byteworkaround(union ccb *ccb) 2916 { 2917 u_int8_t *cdb; 2918 struct cam_periph *periph; 2919 struct cd_softc *softc; 2920 struct cd_mode_params *params; 2921 int frozen, found; 2922 2923 periph = xpt_path_periph(ccb->ccb_h.path); 2924 softc = (struct cd_softc *)periph->softc; 2925 2926 cdb = ccb->csio.cdb_io.cdb_bytes; 2927 2928 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 2929 || ((cdb[0] != MODE_SENSE_6) 2930 && (cdb[0] != MODE_SELECT_6))) 2931 return (0); 2932 2933 /* 2934 * Because there is no convenient place to stash the overall 2935 * cd_mode_params structure pointer, we have to grab it like this. 2936 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 2937 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 2938 * 2939 * XXX It would be nice if, at some point, we could increase the 2940 * number of available peripheral private pointers. Both pointers 2941 * are currently used in most every peripheral driver. 2942 */ 2943 found = 0; 2944 2945 STAILQ_FOREACH(params, &softc->mode_queue, links) { 2946 if (params->mode_buf == ccb->csio.data_ptr) { 2947 found = 1; 2948 break; 2949 } 2950 } 2951 2952 /* 2953 * This shouldn't happen. All mode sense and mode select 2954 * operations in the cd(4) driver MUST go through cdgetmode() and 2955 * cdsetmode()! 2956 */ 2957 if (found == 0) { 2958 xpt_print_path(periph->path); 2959 printf("mode buffer not found in mode queue!\n"); 2960 return (0); 2961 } 2962 2963 params->cdb_size = 10; 2964 softc->minimum_command_size = 10; 2965 xpt_print_path(ccb->ccb_h.path); 2966 printf("%s(6) failed, increasing minimum CDB size to 10 bytes\n", 2967 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 2968 2969 if (cdb[0] == MODE_SENSE_6) { 2970 struct scsi_mode_sense_10 ms10; 2971 struct scsi_mode_sense_6 *ms6; 2972 int len; 2973 2974 ms6 = (struct scsi_mode_sense_6 *)cdb; 2975 2976 bzero(&ms10, sizeof(ms10)); 2977 ms10.opcode = MODE_SENSE_10; 2978 ms10.byte2 = ms6->byte2; 2979 ms10.page = ms6->page; 2980 2981 /* 2982 * 10 byte mode header, block descriptor, 2983 * sizeof(union cd_pages) 2984 */ 2985 len = sizeof(struct cd_mode_data_10); 2986 ccb->csio.dxfer_len = len; 2987 2988 scsi_ulto2b(len, ms10.length); 2989 ms10.control = ms6->control; 2990 bcopy(&ms10, cdb, 10); 2991 ccb->csio.cdb_len = 10; 2992 } else { 2993 struct scsi_mode_select_10 ms10; 2994 struct scsi_mode_select_6 *ms6; 2995 struct scsi_mode_header_6 *header6; 2996 struct scsi_mode_header_10 *header10; 2997 struct scsi_mode_page_header *page_header; 2998 int blk_desc_len, page_num, page_size, len; 2999 3000 ms6 = (struct scsi_mode_select_6 *)cdb; 3001 3002 bzero(&ms10, sizeof(ms10)); 3003 ms10.opcode = MODE_SELECT_10; 3004 ms10.byte2 = ms6->byte2; 3005 3006 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3007 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3008 3009 page_header = find_mode_page_6(header6); 3010 page_num = page_header->page_code; 3011 3012 blk_desc_len = header6->blk_desc_len; 3013 3014 page_size = cdgetpagesize(page_num); 3015 3016 if (page_size != (page_header->page_length + 3017 sizeof(*page_header))) 3018 page_size = page_header->page_length + 3019 sizeof(*page_header); 3020 3021 len = sizeof(*header10) + blk_desc_len + page_size; 3022 3023 len = min(params->alloc_len, len); 3024 3025 /* 3026 * Since the 6 byte parameter header is shorter than the 10 3027 * byte parameter header, we need to copy the actual mode 3028 * page data, and the block descriptor, if any, so things wind 3029 * up in the right place. The regions will overlap, but 3030 * bcopy() does the right thing. 3031 */ 3032 bcopy(params->mode_buf + sizeof(*header6), 3033 params->mode_buf + sizeof(*header10), 3034 len - sizeof(*header10)); 3035 3036 /* Make sure these fields are set correctly. */ 3037 scsi_ulto2b(0, header10->data_length); 3038 header10->medium_type = 0; 3039 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3040 3041 ccb->csio.dxfer_len = len; 3042 3043 scsi_ulto2b(len, ms10.length); 3044 ms10.control = ms6->control; 3045 bcopy(&ms10, cdb, 10); 3046 ccb->csio.cdb_len = 10; 3047 } 3048 3049 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3050 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3051 xpt_action(ccb); 3052 if (frozen) { 3053 cam_release_devq(ccb->ccb_h.path, 3054 /*relsim_flags*/0, 3055 /*openings*/0, 3056 /*timeout*/0, 3057 /*getcount_only*/0); 3058 } 3059 3060 return (ERESTART); 3061 } 3062 3063 static int 3064 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3065 { 3066 struct cd_softc *softc; 3067 struct cam_periph *periph; 3068 int error; 3069 3070 periph = xpt_path_periph(ccb->ccb_h.path); 3071 softc = (struct cd_softc *)periph->softc; 3072 3073 error = 0; 3074 3075 /* 3076 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3077 * CDB comes back with this particular error, try transforming it 3078 * into the 10 byte version. 3079 */ 3080 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3081 error = cd6byteworkaround(ccb); 3082 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 3083 CAM_SCSI_STATUS_ERROR) 3084 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 3085 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 3086 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 3087 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 3088 int sense_key, error_code, asc, ascq; 3089 3090 scsi_extract_sense(&ccb->csio.sense_data, 3091 &error_code, &sense_key, &asc, &ascq); 3092 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3093 error = cd6byteworkaround(ccb); 3094 } 3095 3096 if (error == ERESTART) 3097 return (error); 3098 3099 /* 3100 * XXX 3101 * Until we have a better way of doing pack validation, 3102 * don't treat UAs as errors. 3103 */ 3104 sense_flags |= SF_RETRY_UA; 3105 return (cam_periph_error(ccb, cam_flags, sense_flags, 3106 &softc->saved_ccb)); 3107 } 3108 3109 /* 3110 * Read table of contents 3111 */ 3112 static int 3113 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3114 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3115 { 3116 struct scsi_read_toc *scsi_cmd; 3117 u_int32_t ntoc; 3118 struct ccb_scsiio *csio; 3119 union ccb *ccb; 3120 int error; 3121 3122 ntoc = len; 3123 error = 0; 3124 3125 ccb = cdgetccb(periph, /* priority */ 1); 3126 3127 csio = &ccb->csio; 3128 3129 cam_fill_csio(csio, 3130 /* retries */ 1, 3131 /* cbfcnp */ cddone, 3132 /* flags */ CAM_DIR_IN, 3133 /* tag_action */ MSG_SIMPLE_Q_TAG, 3134 /* data_ptr */ data, 3135 /* dxfer_len */ len, 3136 /* sense_len */ SSD_FULL_SIZE, 3137 sizeof(struct scsi_read_toc), 3138 /* timeout */ 50000); 3139 3140 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3141 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3142 3143 if (mode == CD_MSF_FORMAT) 3144 scsi_cmd->byte2 |= CD_MSF; 3145 scsi_cmd->from_track = start; 3146 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3147 scsi_cmd->data_len[0] = (ntoc) >> 8; 3148 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3149 3150 scsi_cmd->op_code = READ_TOC; 3151 3152 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3153 /*sense_flags*/SF_RETRY_UA | sense_flags); 3154 3155 xpt_release_ccb(ccb); 3156 3157 return(error); 3158 } 3159 3160 static int 3161 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3162 u_int32_t format, int track, 3163 struct cd_sub_channel_info *data, u_int32_t len) 3164 { 3165 struct scsi_read_subchannel *scsi_cmd; 3166 struct ccb_scsiio *csio; 3167 union ccb *ccb; 3168 int error; 3169 3170 error = 0; 3171 3172 ccb = cdgetccb(periph, /* priority */ 1); 3173 3174 csio = &ccb->csio; 3175 3176 cam_fill_csio(csio, 3177 /* retries */ 1, 3178 /* cbfcnp */ cddone, 3179 /* flags */ CAM_DIR_IN, 3180 /* tag_action */ MSG_SIMPLE_Q_TAG, 3181 /* data_ptr */ (u_int8_t *)data, 3182 /* dxfer_len */ len, 3183 /* sense_len */ SSD_FULL_SIZE, 3184 sizeof(struct scsi_read_subchannel), 3185 /* timeout */ 50000); 3186 3187 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3188 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3189 3190 scsi_cmd->op_code = READ_SUBCHANNEL; 3191 if (mode == CD_MSF_FORMAT) 3192 scsi_cmd->byte1 |= CD_MSF; 3193 scsi_cmd->byte2 = SRS_SUBQ; 3194 scsi_cmd->subchan_format = format; 3195 scsi_cmd->track = track; 3196 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3197 scsi_cmd->control = 0; 3198 3199 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3200 /*sense_flags*/SF_RETRY_UA); 3201 3202 xpt_release_ccb(ccb); 3203 3204 return(error); 3205 } 3206 3207 3208 /* 3209 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3210 * routine. See comments in cd6byteworkaround() for details. 3211 */ 3212 static int 3213 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3214 u_int32_t page) 3215 { 3216 struct ccb_scsiio *csio; 3217 struct cd_softc *softc; 3218 union ccb *ccb; 3219 int param_len; 3220 int error; 3221 3222 softc = (struct cd_softc *)periph->softc; 3223 3224 ccb = cdgetccb(periph, /* priority */ 1); 3225 3226 csio = &ccb->csio; 3227 3228 data->cdb_size = softc->minimum_command_size; 3229 if (data->cdb_size < 10) 3230 param_len = sizeof(struct cd_mode_data); 3231 else 3232 param_len = sizeof(struct cd_mode_data_10); 3233 3234 /* Don't say we've got more room than we actually allocated */ 3235 param_len = min(param_len, data->alloc_len); 3236 3237 scsi_mode_sense_len(csio, 3238 /* retries */ 1, 3239 /* cbfcnp */ cddone, 3240 /* tag_action */ MSG_SIMPLE_Q_TAG, 3241 /* dbd */ 0, 3242 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3243 /* page */ page, 3244 /* param_buf */ data->mode_buf, 3245 /* param_len */ param_len, 3246 /* minimum_cmd_size */ softc->minimum_command_size, 3247 /* sense_len */ SSD_FULL_SIZE, 3248 /* timeout */ 50000); 3249 3250 /* 3251 * It would be nice not to have to do this, but there's no 3252 * available pointer in the CCB that would allow us to stuff the 3253 * mode params structure in there and retrieve it in 3254 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3255 * lets the caller know what CDB size we ended up using, so they 3256 * can find the actual mode page offset. 3257 */ 3258 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3259 3260 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3261 /*sense_flags*/SF_RETRY_UA); 3262 3263 xpt_release_ccb(ccb); 3264 3265 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3266 3267 /* 3268 * This is a bit of belt-and-suspenders checking, but if we run 3269 * into a situation where the target sends back multiple block 3270 * descriptors, we might not have enough space in the buffer to 3271 * see the whole mode page. Better to return an error than 3272 * potentially access memory beyond our malloced region. 3273 */ 3274 if (error == 0) { 3275 u_int32_t data_len; 3276 3277 if (data->cdb_size == 10) { 3278 struct scsi_mode_header_10 *hdr10; 3279 3280 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3281 data_len = scsi_2btoul(hdr10->data_length); 3282 data_len += sizeof(hdr10->data_length); 3283 } else { 3284 struct scsi_mode_header_6 *hdr6; 3285 3286 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3287 data_len = hdr6->data_length; 3288 data_len += sizeof(hdr6->data_length); 3289 } 3290 3291 /* 3292 * Complain if there is more mode data available than we 3293 * allocated space for. This could potentially happen if 3294 * we miscalculated the page length for some reason, if the 3295 * drive returns multiple block descriptors, or if it sets 3296 * the data length incorrectly. 3297 */ 3298 if (data_len > data->alloc_len) { 3299 xpt_print_path(periph->path); 3300 printf("allocated modepage %d length %d < returned " 3301 "length %d\n", page, data->alloc_len, data_len); 3302 3303 error = ENOSPC; 3304 } 3305 } 3306 return (error); 3307 } 3308 3309 /* 3310 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3311 * routine. See comments in cd6byteworkaround() for details. 3312 */ 3313 static int 3314 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3315 { 3316 struct ccb_scsiio *csio; 3317 struct cd_softc *softc; 3318 union ccb *ccb; 3319 int cdb_size, param_len; 3320 int error; 3321 3322 softc = (struct cd_softc *)periph->softc; 3323 3324 ccb = cdgetccb(periph, /* priority */ 1); 3325 3326 csio = &ccb->csio; 3327 3328 error = 0; 3329 3330 /* 3331 * If the data is formatted for the 10 byte version of the mode 3332 * select parameter list, we need to use the 10 byte CDB. 3333 * Otherwise, we use whatever the stored minimum command size. 3334 */ 3335 if (data->cdb_size == 10) 3336 cdb_size = data->cdb_size; 3337 else 3338 cdb_size = softc->minimum_command_size; 3339 3340 if (cdb_size >= 10) { 3341 struct scsi_mode_header_10 *mode_header; 3342 u_int32_t data_len; 3343 3344 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3345 3346 data_len = scsi_2btoul(mode_header->data_length); 3347 3348 scsi_ulto2b(0, mode_header->data_length); 3349 /* 3350 * SONY drives do not allow a mode select with a medium_type 3351 * value that has just been returned by a mode sense; use a 3352 * medium_type of 0 (Default) instead. 3353 */ 3354 mode_header->medium_type = 0; 3355 3356 /* 3357 * Pass back whatever the drive passed to us, plus the size 3358 * of the data length field. 3359 */ 3360 param_len = data_len + sizeof(mode_header->data_length); 3361 3362 } else { 3363 struct scsi_mode_header_6 *mode_header; 3364 3365 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3366 3367 param_len = mode_header->data_length + 1; 3368 3369 mode_header->data_length = 0; 3370 /* 3371 * SONY drives do not allow a mode select with a medium_type 3372 * value that has just been returned by a mode sense; use a 3373 * medium_type of 0 (Default) instead. 3374 */ 3375 mode_header->medium_type = 0; 3376 } 3377 3378 /* Don't say we've got more room than we actually allocated */ 3379 param_len = min(param_len, data->alloc_len); 3380 3381 scsi_mode_select_len(csio, 3382 /* retries */ 1, 3383 /* cbfcnp */ cddone, 3384 /* tag_action */ MSG_SIMPLE_Q_TAG, 3385 /* scsi_page_fmt */ 1, 3386 /* save_pages */ 0, 3387 /* param_buf */ data->mode_buf, 3388 /* param_len */ param_len, 3389 /* minimum_cmd_size */ cdb_size, 3390 /* sense_len */ SSD_FULL_SIZE, 3391 /* timeout */ 50000); 3392 3393 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3394 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3395 3396 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3397 /*sense_flags*/SF_RETRY_UA); 3398 3399 xpt_release_ccb(ccb); 3400 3401 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3402 3403 return (error); 3404 } 3405 3406 3407 static int 3408 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3409 { 3410 struct ccb_scsiio *csio; 3411 union ccb *ccb; 3412 int error; 3413 u_int8_t cdb_len; 3414 3415 error = 0; 3416 ccb = cdgetccb(periph, /* priority */ 1); 3417 csio = &ccb->csio; 3418 /* 3419 * Use the smallest possible command to perform the operation. 3420 */ 3421 if ((len & 0xffff0000) == 0) { 3422 /* 3423 * We can fit in a 10 byte cdb. 3424 */ 3425 struct scsi_play_10 *scsi_cmd; 3426 3427 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3428 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3429 scsi_cmd->op_code = PLAY_10; 3430 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3431 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3432 cdb_len = sizeof(*scsi_cmd); 3433 } else { 3434 struct scsi_play_12 *scsi_cmd; 3435 3436 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3437 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3438 scsi_cmd->op_code = PLAY_12; 3439 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3440 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3441 cdb_len = sizeof(*scsi_cmd); 3442 } 3443 cam_fill_csio(csio, 3444 /*retries*/2, 3445 cddone, 3446 /*flags*/CAM_DIR_NONE, 3447 MSG_SIMPLE_Q_TAG, 3448 /*dataptr*/NULL, 3449 /*datalen*/0, 3450 /*sense_len*/SSD_FULL_SIZE, 3451 cdb_len, 3452 /*timeout*/50 * 1000); 3453 3454 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3455 /*sense_flags*/SF_RETRY_UA); 3456 3457 xpt_release_ccb(ccb); 3458 3459 return(error); 3460 } 3461 3462 static int 3463 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3464 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3465 { 3466 struct scsi_play_msf *scsi_cmd; 3467 struct ccb_scsiio *csio; 3468 union ccb *ccb; 3469 int error; 3470 3471 error = 0; 3472 3473 ccb = cdgetccb(periph, /* priority */ 1); 3474 3475 csio = &ccb->csio; 3476 3477 cam_fill_csio(csio, 3478 /* retries */ 1, 3479 /* cbfcnp */ cddone, 3480 /* flags */ CAM_DIR_NONE, 3481 /* tag_action */ MSG_SIMPLE_Q_TAG, 3482 /* data_ptr */ NULL, 3483 /* dxfer_len */ 0, 3484 /* sense_len */ SSD_FULL_SIZE, 3485 sizeof(struct scsi_play_msf), 3486 /* timeout */ 50000); 3487 3488 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3489 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3490 3491 scsi_cmd->op_code = PLAY_MSF; 3492 scsi_cmd->start_m = startm; 3493 scsi_cmd->start_s = starts; 3494 scsi_cmd->start_f = startf; 3495 scsi_cmd->end_m = endm; 3496 scsi_cmd->end_s = ends; 3497 scsi_cmd->end_f = endf; 3498 3499 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3500 /*sense_flags*/SF_RETRY_UA); 3501 3502 xpt_release_ccb(ccb); 3503 3504 return(error); 3505 } 3506 3507 3508 static int 3509 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3510 u_int32_t etrack, u_int32_t eindex) 3511 { 3512 struct scsi_play_track *scsi_cmd; 3513 struct ccb_scsiio *csio; 3514 union ccb *ccb; 3515 int error; 3516 3517 error = 0; 3518 3519 ccb = cdgetccb(periph, /* priority */ 1); 3520 3521 csio = &ccb->csio; 3522 3523 cam_fill_csio(csio, 3524 /* retries */ 1, 3525 /* cbfcnp */ cddone, 3526 /* flags */ CAM_DIR_NONE, 3527 /* tag_action */ MSG_SIMPLE_Q_TAG, 3528 /* data_ptr */ NULL, 3529 /* dxfer_len */ 0, 3530 /* sense_len */ SSD_FULL_SIZE, 3531 sizeof(struct scsi_play_track), 3532 /* timeout */ 50000); 3533 3534 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3535 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3536 3537 scsi_cmd->op_code = PLAY_TRACK; 3538 scsi_cmd->start_track = strack; 3539 scsi_cmd->start_index = sindex; 3540 scsi_cmd->end_track = etrack; 3541 scsi_cmd->end_index = eindex; 3542 3543 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3544 /*sense_flags*/SF_RETRY_UA); 3545 3546 xpt_release_ccb(ccb); 3547 3548 return(error); 3549 } 3550 3551 static int 3552 cdpause(struct cam_periph *periph, u_int32_t go) 3553 { 3554 struct scsi_pause *scsi_cmd; 3555 struct ccb_scsiio *csio; 3556 union ccb *ccb; 3557 int error; 3558 3559 error = 0; 3560 3561 ccb = cdgetccb(periph, /* priority */ 1); 3562 3563 csio = &ccb->csio; 3564 3565 cam_fill_csio(csio, 3566 /* retries */ 1, 3567 /* cbfcnp */ cddone, 3568 /* flags */ CAM_DIR_NONE, 3569 /* tag_action */ MSG_SIMPLE_Q_TAG, 3570 /* data_ptr */ NULL, 3571 /* dxfer_len */ 0, 3572 /* sense_len */ SSD_FULL_SIZE, 3573 sizeof(struct scsi_pause), 3574 /* timeout */ 50000); 3575 3576 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3577 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3578 3579 scsi_cmd->op_code = PAUSE; 3580 scsi_cmd->resume = go; 3581 3582 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3583 /*sense_flags*/SF_RETRY_UA); 3584 3585 xpt_release_ccb(ccb); 3586 3587 return(error); 3588 } 3589 3590 static int 3591 cdstartunit(struct cam_periph *periph, int load) 3592 { 3593 union ccb *ccb; 3594 int error; 3595 3596 error = 0; 3597 3598 ccb = cdgetccb(periph, /* priority */ 1); 3599 3600 scsi_start_stop(&ccb->csio, 3601 /* retries */ 1, 3602 /* cbfcnp */ cddone, 3603 /* tag_action */ MSG_SIMPLE_Q_TAG, 3604 /* start */ TRUE, 3605 /* load_eject */ load, 3606 /* immediate */ FALSE, 3607 /* sense_len */ SSD_FULL_SIZE, 3608 /* timeout */ 50000); 3609 3610 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3611 /*sense_flags*/SF_RETRY_UA); 3612 3613 xpt_release_ccb(ccb); 3614 3615 return(error); 3616 } 3617 3618 static int 3619 cdstopunit(struct cam_periph *periph, u_int32_t eject) 3620 { 3621 union ccb *ccb; 3622 int error; 3623 3624 error = 0; 3625 3626 ccb = cdgetccb(periph, /* priority */ 1); 3627 3628 scsi_start_stop(&ccb->csio, 3629 /* retries */ 1, 3630 /* cbfcnp */ cddone, 3631 /* tag_action */ MSG_SIMPLE_Q_TAG, 3632 /* start */ FALSE, 3633 /* load_eject */ eject, 3634 /* immediate */ FALSE, 3635 /* sense_len */ SSD_FULL_SIZE, 3636 /* timeout */ 50000); 3637 3638 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3639 /*sense_flags*/SF_RETRY_UA); 3640 3641 xpt_release_ccb(ccb); 3642 3643 return(error); 3644 } 3645 3646 static int 3647 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3648 { 3649 struct scsi_set_speed *scsi_cmd; 3650 struct ccb_scsiio *csio; 3651 union ccb *ccb; 3652 int error; 3653 3654 error = 0; 3655 ccb = cdgetccb(periph, /* priority */ 1); 3656 csio = &ccb->csio; 3657 3658 /* Preserve old behavior: units in multiples of CDROM speed */ 3659 if (rdspeed < 177) 3660 rdspeed *= 177; 3661 if (wrspeed < 177) 3662 wrspeed *= 177; 3663 3664 cam_fill_csio(csio, 3665 /* retries */ 1, 3666 /* cbfcnp */ cddone, 3667 /* flags */ CAM_DIR_NONE, 3668 /* tag_action */ MSG_SIMPLE_Q_TAG, 3669 /* data_ptr */ NULL, 3670 /* dxfer_len */ 0, 3671 /* sense_len */ SSD_FULL_SIZE, 3672 sizeof(struct scsi_set_speed), 3673 /* timeout */ 50000); 3674 3675 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3676 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3677 3678 scsi_cmd->opcode = SET_CD_SPEED; 3679 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3680 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3681 3682 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3683 /*sense_flags*/SF_RETRY_UA); 3684 3685 xpt_release_ccb(ccb); 3686 3687 return(error); 3688 } 3689 3690 static int 3691 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3692 { 3693 union ccb *ccb; 3694 u_int8_t *databuf; 3695 u_int32_t lba; 3696 int error; 3697 int length; 3698 3699 error = 0; 3700 databuf = NULL; 3701 lba = 0; 3702 3703 ccb = cdgetccb(periph, /* priority */ 1); 3704 3705 switch (authinfo->format) { 3706 case DVD_REPORT_AGID: 3707 length = sizeof(struct scsi_report_key_data_agid); 3708 break; 3709 case DVD_REPORT_CHALLENGE: 3710 length = sizeof(struct scsi_report_key_data_challenge); 3711 break; 3712 case DVD_REPORT_KEY1: 3713 length = sizeof(struct scsi_report_key_data_key1_key2); 3714 break; 3715 case DVD_REPORT_TITLE_KEY: 3716 length = sizeof(struct scsi_report_key_data_title); 3717 /* The lba field is only set for the title key */ 3718 lba = authinfo->lba; 3719 break; 3720 case DVD_REPORT_ASF: 3721 length = sizeof(struct scsi_report_key_data_asf); 3722 break; 3723 case DVD_REPORT_RPC: 3724 length = sizeof(struct scsi_report_key_data_rpc); 3725 break; 3726 case DVD_INVALIDATE_AGID: 3727 length = 0; 3728 break; 3729 default: 3730 error = EINVAL; 3731 goto bailout; 3732 break; /* NOTREACHED */ 3733 } 3734 3735 if (length != 0) { 3736 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3737 } else 3738 databuf = NULL; 3739 3740 3741 scsi_report_key(&ccb->csio, 3742 /* retries */ 1, 3743 /* cbfcnp */ cddone, 3744 /* tag_action */ MSG_SIMPLE_Q_TAG, 3745 /* lba */ lba, 3746 /* agid */ authinfo->agid, 3747 /* key_format */ authinfo->format, 3748 /* data_ptr */ databuf, 3749 /* dxfer_len */ length, 3750 /* sense_len */ SSD_FULL_SIZE, 3751 /* timeout */ 50000); 3752 3753 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3754 /*sense_flags*/SF_RETRY_UA); 3755 3756 if (error != 0) 3757 goto bailout; 3758 3759 if (ccb->csio.resid != 0) { 3760 xpt_print_path(periph->path); 3761 printf("warning, residual for report key command is %d\n", 3762 ccb->csio.resid); 3763 } 3764 3765 switch(authinfo->format) { 3766 case DVD_REPORT_AGID: { 3767 struct scsi_report_key_data_agid *agid_data; 3768 3769 agid_data = (struct scsi_report_key_data_agid *)databuf; 3770 3771 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3772 RKD_AGID_SHIFT; 3773 break; 3774 } 3775 case DVD_REPORT_CHALLENGE: { 3776 struct scsi_report_key_data_challenge *chal_data; 3777 3778 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3779 3780 bcopy(chal_data->challenge_key, authinfo->keychal, 3781 min(sizeof(chal_data->challenge_key), 3782 sizeof(authinfo->keychal))); 3783 break; 3784 } 3785 case DVD_REPORT_KEY1: { 3786 struct scsi_report_key_data_key1_key2 *key1_data; 3787 3788 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3789 3790 bcopy(key1_data->key1, authinfo->keychal, 3791 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3792 break; 3793 } 3794 case DVD_REPORT_TITLE_KEY: { 3795 struct scsi_report_key_data_title *title_data; 3796 3797 title_data = (struct scsi_report_key_data_title *)databuf; 3798 3799 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3800 RKD_TITLE_CPM_SHIFT; 3801 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3802 RKD_TITLE_CP_SEC_SHIFT; 3803 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3804 RKD_TITLE_CMGS_SHIFT; 3805 bcopy(title_data->title_key, authinfo->keychal, 3806 min(sizeof(title_data->title_key), 3807 sizeof(authinfo->keychal))); 3808 break; 3809 } 3810 case DVD_REPORT_ASF: { 3811 struct scsi_report_key_data_asf *asf_data; 3812 3813 asf_data = (struct scsi_report_key_data_asf *)databuf; 3814 3815 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 3816 break; 3817 } 3818 case DVD_REPORT_RPC: { 3819 struct scsi_report_key_data_rpc *rpc_data; 3820 3821 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 3822 3823 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 3824 RKD_RPC_TYPE_SHIFT; 3825 authinfo->vend_rsts = 3826 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 3827 RKD_RPC_VENDOR_RESET_SHIFT; 3828 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 3829 authinfo->region = rpc_data->region_mask; 3830 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 3831 break; 3832 } 3833 case DVD_INVALIDATE_AGID: 3834 break; 3835 default: 3836 /* This should be impossible, since we checked above */ 3837 error = EINVAL; 3838 goto bailout; 3839 break; /* NOTREACHED */ 3840 } 3841 bailout: 3842 if (databuf != NULL) 3843 free(databuf, M_DEVBUF); 3844 3845 xpt_release_ccb(ccb); 3846 3847 return(error); 3848 } 3849 3850 static int 3851 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3852 { 3853 union ccb *ccb; 3854 u_int8_t *databuf; 3855 int length; 3856 int error; 3857 3858 error = 0; 3859 databuf = NULL; 3860 3861 ccb = cdgetccb(periph, /* priority */ 1); 3862 3863 switch(authinfo->format) { 3864 case DVD_SEND_CHALLENGE: { 3865 struct scsi_report_key_data_challenge *challenge_data; 3866 3867 length = sizeof(*challenge_data); 3868 3869 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3870 3871 databuf = (u_int8_t *)challenge_data; 3872 3873 scsi_ulto2b(length - sizeof(challenge_data->data_len), 3874 challenge_data->data_len); 3875 3876 bcopy(authinfo->keychal, challenge_data->challenge_key, 3877 min(sizeof(authinfo->keychal), 3878 sizeof(challenge_data->challenge_key))); 3879 break; 3880 } 3881 case DVD_SEND_KEY2: { 3882 struct scsi_report_key_data_key1_key2 *key2_data; 3883 3884 length = sizeof(*key2_data); 3885 3886 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3887 3888 databuf = (u_int8_t *)key2_data; 3889 3890 scsi_ulto2b(length - sizeof(key2_data->data_len), 3891 key2_data->data_len); 3892 3893 bcopy(authinfo->keychal, key2_data->key1, 3894 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 3895 3896 break; 3897 } 3898 case DVD_SEND_RPC: { 3899 struct scsi_send_key_data_rpc *rpc_data; 3900 3901 length = sizeof(*rpc_data); 3902 3903 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 3904 3905 databuf = (u_int8_t *)rpc_data; 3906 3907 scsi_ulto2b(length - sizeof(rpc_data->data_len), 3908 rpc_data->data_len); 3909 3910 rpc_data->region_code = authinfo->region; 3911 break; 3912 } 3913 default: 3914 error = EINVAL; 3915 goto bailout; 3916 break; /* NOTREACHED */ 3917 } 3918 3919 scsi_send_key(&ccb->csio, 3920 /* retries */ 1, 3921 /* cbfcnp */ cddone, 3922 /* tag_action */ MSG_SIMPLE_Q_TAG, 3923 /* agid */ authinfo->agid, 3924 /* key_format */ authinfo->format, 3925 /* data_ptr */ databuf, 3926 /* dxfer_len */ length, 3927 /* sense_len */ SSD_FULL_SIZE, 3928 /* timeout */ 50000); 3929 3930 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3931 /*sense_flags*/SF_RETRY_UA); 3932 3933 bailout: 3934 3935 if (databuf != NULL) 3936 free(databuf, M_DEVBUF); 3937 3938 xpt_release_ccb(ccb); 3939 3940 return(error); 3941 } 3942 3943 static int 3944 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 3945 { 3946 union ccb *ccb; 3947 u_int8_t *databuf; 3948 u_int32_t address; 3949 int error; 3950 int length; 3951 3952 error = 0; 3953 databuf = NULL; 3954 /* The address is reserved for many of the formats */ 3955 address = 0; 3956 3957 ccb = cdgetccb(periph, /* priority */ 1); 3958 3959 switch(dvdstruct->format) { 3960 case DVD_STRUCT_PHYSICAL: 3961 length = sizeof(struct scsi_read_dvd_struct_data_physical); 3962 break; 3963 case DVD_STRUCT_COPYRIGHT: 3964 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 3965 break; 3966 case DVD_STRUCT_DISCKEY: 3967 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 3968 break; 3969 case DVD_STRUCT_BCA: 3970 length = sizeof(struct scsi_read_dvd_struct_data_bca); 3971 break; 3972 case DVD_STRUCT_MANUFACT: 3973 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 3974 break; 3975 case DVD_STRUCT_CMI: 3976 error = ENODEV; 3977 goto bailout; 3978 #ifdef notyet 3979 length = sizeof(struct scsi_read_dvd_struct_data_copy_manage); 3980 address = dvdstruct->address; 3981 #endif 3982 break; /* NOTREACHED */ 3983 case DVD_STRUCT_PROTDISCID: 3984 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 3985 break; 3986 case DVD_STRUCT_DISCKEYBLOCK: 3987 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 3988 break; 3989 case DVD_STRUCT_DDS: 3990 length = sizeof(struct scsi_read_dvd_struct_data_dds); 3991 break; 3992 case DVD_STRUCT_MEDIUM_STAT: 3993 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 3994 break; 3995 case DVD_STRUCT_SPARE_AREA: 3996 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 3997 break; 3998 case DVD_STRUCT_RMD_LAST: 3999 error = ENODEV; 4000 goto bailout; 4001 #ifdef notyet 4002 length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout); 4003 address = dvdstruct->address; 4004 #endif 4005 break; /* NOTREACHED */ 4006 case DVD_STRUCT_RMD_RMA: 4007 error = ENODEV; 4008 goto bailout; 4009 #ifdef notyet 4010 length = sizeof(struct scsi_read_dvd_struct_data_rmd); 4011 address = dvdstruct->address; 4012 #endif 4013 break; /* NOTREACHED */ 4014 case DVD_STRUCT_PRERECORDED: 4015 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4016 break; 4017 case DVD_STRUCT_UNIQUEID: 4018 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4019 break; 4020 case DVD_STRUCT_DCB: 4021 error = ENODEV; 4022 goto bailout; 4023 #ifdef notyet 4024 length = sizeof(struct scsi_read_dvd_struct_data_dcb); 4025 address = dvdstruct->address; 4026 #endif 4027 break; /* NOTREACHED */ 4028 case DVD_STRUCT_LIST: 4029 /* 4030 * This is the maximum allocation length for the READ DVD 4031 * STRUCTURE command. There's nothing in the MMC3 spec 4032 * that indicates a limit in the amount of data that can 4033 * be returned from this call, other than the limits 4034 * imposed by the 2-byte length variables. 4035 */ 4036 length = 65535; 4037 break; 4038 default: 4039 error = EINVAL; 4040 goto bailout; 4041 break; /* NOTREACHED */ 4042 } 4043 4044 if (length != 0) { 4045 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO); 4046 } else 4047 databuf = NULL; 4048 4049 scsi_read_dvd_structure(&ccb->csio, 4050 /* retries */ 1, 4051 /* cbfcnp */ cddone, 4052 /* tag_action */ MSG_SIMPLE_Q_TAG, 4053 /* lba */ address, 4054 /* layer_number */ dvdstruct->layer_num, 4055 /* key_format */ dvdstruct->format, 4056 /* agid */ dvdstruct->agid, 4057 /* data_ptr */ databuf, 4058 /* dxfer_len */ length, 4059 /* sense_len */ SSD_FULL_SIZE, 4060 /* timeout */ 50000); 4061 4062 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4063 /*sense_flags*/SF_RETRY_UA); 4064 4065 if (error != 0) 4066 goto bailout; 4067 4068 switch(dvdstruct->format) { 4069 case DVD_STRUCT_PHYSICAL: { 4070 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4071 struct dvd_layer *outlayer; 4072 struct scsi_read_dvd_struct_data_physical *phys_data; 4073 4074 phys_data = 4075 (struct scsi_read_dvd_struct_data_physical *)databuf; 4076 inlayer = &phys_data->layer_desc; 4077 outlayer = (struct dvd_layer *)&dvdstruct->data; 4078 4079 dvdstruct->length = sizeof(*inlayer); 4080 4081 outlayer->book_type = (inlayer->book_type_version & 4082 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4083 outlayer->book_version = (inlayer->book_type_version & 4084 RDSD_BOOK_VERSION_MASK); 4085 outlayer->disc_size = (inlayer->disc_size_max_rate & 4086 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4087 outlayer->max_rate = (inlayer->disc_size_max_rate & 4088 RDSD_MAX_RATE_MASK); 4089 outlayer->nlayers = (inlayer->layer_info & 4090 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4091 outlayer->track_path = (inlayer->layer_info & 4092 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4093 outlayer->layer_type = (inlayer->layer_info & 4094 RDSD_LAYER_TYPE_MASK); 4095 outlayer->linear_density = (inlayer->density & 4096 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4097 outlayer->track_density = (inlayer->density & 4098 RDSD_TRACK_DENSITY_MASK); 4099 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4100 RDSD_BCA_SHIFT; 4101 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4102 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4103 outlayer->end_sector_l0 = 4104 scsi_3btoul(inlayer->end_sector_layer0); 4105 break; 4106 } 4107 case DVD_STRUCT_COPYRIGHT: { 4108 struct scsi_read_dvd_struct_data_copyright *copy_data; 4109 4110 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4111 databuf; 4112 4113 dvdstruct->cpst = copy_data->cps_type; 4114 dvdstruct->rmi = copy_data->region_info; 4115 dvdstruct->length = 0; 4116 4117 break; 4118 } 4119 default: 4120 /* 4121 * Tell the user what the overall length is, no matter 4122 * what we can actually fit in the data buffer. 4123 */ 4124 dvdstruct->length = length - ccb->csio.resid - 4125 sizeof(struct scsi_read_dvd_struct_data_header); 4126 4127 /* 4128 * But only actually copy out the smaller of what we read 4129 * in or what the structure can take. 4130 */ 4131 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4132 dvdstruct->data, 4133 min(sizeof(dvdstruct->data), dvdstruct->length)); 4134 break; 4135 } 4136 bailout: 4137 4138 if (databuf != NULL) 4139 free(databuf, M_DEVBUF); 4140 4141 xpt_release_ccb(ccb); 4142 4143 return(error); 4144 } 4145 4146 void 4147 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4148 void (*cbfcnp)(struct cam_periph *, union ccb *), 4149 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4150 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4151 u_int8_t sense_len, u_int32_t timeout) 4152 { 4153 struct scsi_report_key *scsi_cmd; 4154 4155 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4156 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4157 scsi_cmd->opcode = REPORT_KEY; 4158 scsi_ulto4b(lba, scsi_cmd->lba); 4159 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4160 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4161 (key_format & RK_KF_KEYFORMAT_MASK); 4162 4163 cam_fill_csio(csio, 4164 retries, 4165 cbfcnp, 4166 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4167 tag_action, 4168 /*data_ptr*/ data_ptr, 4169 /*dxfer_len*/ dxfer_len, 4170 sense_len, 4171 sizeof(*scsi_cmd), 4172 timeout); 4173 } 4174 4175 void 4176 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4177 void (*cbfcnp)(struct cam_periph *, union ccb *), 4178 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4179 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4180 u_int32_t timeout) 4181 { 4182 struct scsi_send_key *scsi_cmd; 4183 4184 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4185 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4186 scsi_cmd->opcode = SEND_KEY; 4187 4188 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4189 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4190 (key_format & RK_KF_KEYFORMAT_MASK); 4191 4192 cam_fill_csio(csio, 4193 retries, 4194 cbfcnp, 4195 /*flags*/ CAM_DIR_OUT, 4196 tag_action, 4197 /*data_ptr*/ data_ptr, 4198 /*dxfer_len*/ dxfer_len, 4199 sense_len, 4200 sizeof(*scsi_cmd), 4201 timeout); 4202 } 4203 4204 4205 void 4206 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4207 void (*cbfcnp)(struct cam_periph *, union ccb *), 4208 u_int8_t tag_action, u_int32_t address, 4209 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4210 u_int8_t *data_ptr, u_int32_t dxfer_len, 4211 u_int8_t sense_len, u_int32_t timeout) 4212 { 4213 struct scsi_read_dvd_structure *scsi_cmd; 4214 4215 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4216 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4217 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4218 4219 scsi_ulto4b(address, scsi_cmd->address); 4220 scsi_cmd->layer_number = layer_number; 4221 scsi_cmd->format = format; 4222 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4223 /* The AGID is the top two bits of this byte */ 4224 scsi_cmd->agid = agid << 6; 4225 4226 cam_fill_csio(csio, 4227 retries, 4228 cbfcnp, 4229 /*flags*/ CAM_DIR_IN, 4230 tag_action, 4231 /*data_ptr*/ data_ptr, 4232 /*dxfer_len*/ dxfer_len, 4233 sense_len, 4234 sizeof(*scsi_cmd), 4235 timeout); 4236 }
Cache object: 1942912d3452365039ed6a19923e71c9
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