1 /* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2003, 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 * $FreeBSD: src/sys/cam/scsi/scsi_cd.c,v 1.31.2.16 2003/10/21 22:26:11 thomas Exp $ 28 */ 29 /* 30 * Portions of this driver taken from the original FreeBSD cd driver. 31 * Written by Julian Elischer (julian@tfs.com) 32 * for TRW Financial Systems for use under the MACH(2.5) operating system. 33 * 34 * TRW Financial Systems, in accordance with their agreement with Carnegie 35 * Mellon University, makes this software available to CMU to distribute 36 * or use in any manner that they see fit as long as this message is kept with 37 * the software. For this reason TFS also grants any other persons or 38 * organisations permission to use or modify this software. 39 * 40 * TFS supplies this software to be publicly redistributed 41 * on the understanding that TFS is not responsible for the correct 42 * functioning of this software in any circumstances. 43 * 44 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 45 * 46 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 47 */ 48 49 #include "opt_cd.h" 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/buf.h> 55 #include <sys/conf.h> 56 #include <sys/disk.h> 57 #include <sys/caps.h> 58 #include <sys/dtype.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 <sys/proc.h> 67 #include <sys/camlib.h> 68 #include <sys/udev.h> 69 70 #include <sys/buf2.h> 71 72 #include "../cam.h" 73 #include "../cam_ccb.h" 74 #include "../cam_extend.h" 75 #include "../cam_periph.h" 76 #include "../cam_xpt_periph.h" 77 #include "../cam_queue.h" 78 #include "../cam_sim.h" 79 80 #include "scsi_message.h" 81 #include "scsi_da.h" 82 #include "scsi_cd.h" 83 84 #define LEADOUT 0xaa /* leadout toc entry */ 85 86 struct cd_params { 87 u_int32_t blksize; 88 u_long disksize; 89 }; 90 91 typedef enum { 92 CD_Q_NONE = 0x00, 93 CD_Q_NO_TOUCH = 0x01, 94 CD_Q_BCD_TRACKS = 0x02, 95 CD_Q_NO_CHANGER = 0x04, 96 CD_Q_CHANGER = 0x08, 97 CD_Q_10_BYTE_ONLY = 0x10 98 } cd_quirks; 99 100 typedef enum { 101 CD_FLAG_INVALID = 0x0001, 102 CD_FLAG_NEW_DISC = 0x0002, 103 CD_FLAG_DISC_LOCKED = 0x0004, 104 CD_FLAG_DISC_REMOVABLE = 0x0008, 105 CD_FLAG_TAGGED_QUEUING = 0x0010, 106 CD_FLAG_CHANGER = 0x0040, 107 CD_FLAG_ACTIVE = 0x0080, 108 CD_FLAG_SCHED_ON_COMP = 0x0100, 109 CD_FLAG_RETRY_UA = 0x0200, 110 CD_FLAG_VALID_MEDIA = 0x0400, 111 CD_FLAG_VALID_TOC = 0x0800, 112 CD_FLAG_SCTX_INIT = 0x1000, 113 CD_FLAG_OPEN = 0x2000, 114 CD_FLAG_CAP_MUTE = 0x4000 115 } cd_flags; 116 117 typedef enum { 118 CD_CCB_POLLED = 0x00, 119 CD_CCB_PROBE = 0x01, 120 CD_CCB_BUFFER_IO = 0x02, 121 CD_CCB_WAITING = 0x03, 122 CD_CCB_TYPE_MASK = 0x0F, 123 CD_CCB_RETRY_UA = 0x10 124 } cd_ccb_state; 125 126 typedef enum { 127 CHANGER_TIMEOUT_SCHED = 0x01, 128 CHANGER_SHORT_TMOUT_SCHED = 0x02, 129 CHANGER_MANUAL_CALL = 0x04, 130 CHANGER_NEED_TIMEOUT = 0x08 131 } cd_changer_flags; 132 133 #define ccb_state ppriv_field0 134 #define ccb_bio ppriv_ptr1 135 136 struct cd_tocdata { 137 struct ioc_toc_header header; 138 struct cd_toc_entry entries[100]; 139 }; 140 141 struct cd_toc_single { 142 struct ioc_toc_header header; 143 struct cd_toc_entry entry; 144 }; 145 146 typedef enum { 147 CD_STATE_PROBE, 148 CD_STATE_NORMAL 149 } cd_state; 150 151 struct cd_softc { 152 cam_pinfo pinfo; 153 cd_state state; 154 volatile cd_flags flags; 155 struct bio_queue_head bio_queue; 156 LIST_HEAD(, ccb_hdr) pending_ccbs; 157 struct cd_params params; 158 struct disk disk; 159 union ccb saved_ccb; 160 cd_quirks quirks; 161 struct devstat device_stats; 162 STAILQ_ENTRY(cd_softc) changer_links; 163 struct cdchanger *changer; 164 int bufs_left; 165 struct cam_periph *periph; 166 int minimum_command_size; 167 int outstanding_cmds; 168 struct task sysctl_task; 169 struct sysctl_ctx_list sysctl_ctx; 170 struct sysctl_oid *sysctl_tree; 171 STAILQ_HEAD(, cd_mode_params) mode_queue; 172 struct cd_tocdata toc; 173 }; 174 175 struct cd_page_sizes { 176 int page; 177 int page_size; 178 }; 179 180 static struct cd_page_sizes cd_page_size_table[] = 181 { 182 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 183 }; 184 185 struct cd_quirk_entry { 186 struct scsi_inquiry_pattern inq_pat; 187 cd_quirks quirks; 188 }; 189 190 /* 191 * The changer quirk entries aren't strictly necessary. Basically, what 192 * they do is tell cdregister() up front that a device is a changer. 193 * Otherwise, it will figure that fact out once it sees a LUN on the device 194 * that is greater than 0. If it is known up front that a device is a changer, 195 * all I/O to the device will go through the changer scheduling routines, as 196 * opposed to the "normal" CD code. 197 * 198 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 199 * your device hangs when it gets a 10 byte command. Adding a quirk just 200 * to get rid of the informative diagnostic message is not acceptable. All 201 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 202 * referenced in a comment along with the quirk) , and must be approved by 203 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 204 * be removed until the submitter can explain why they are needed. 205 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 206 * when the CAM_NEW_TRAN_CODE work is done. 207 */ 208 static struct cd_quirk_entry cd_quirk_table[] = 209 { 210 { 211 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 212 /*quirks*/ CD_Q_CHANGER 213 }, 214 { 215 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 216 "*"}, /* quirks */ CD_Q_CHANGER 217 }, 218 { 219 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 220 /* quirks */ CD_Q_CHANGER 221 }, 222 { 223 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 224 /* quirks */ CD_Q_BCD_TRACKS 225 } 226 }; 227 228 static d_open_t cdopen; 229 static d_close_t cdclose; 230 static d_ioctl_t cdioctl; 231 static d_strategy_t cdstrategy; 232 233 static periph_init_t cdinit; 234 static periph_ctor_t cdregister; 235 static periph_dtor_t cdcleanup; 236 static periph_start_t cdstart; 237 static periph_oninv_t cdoninvalidate; 238 static void cdasync(void *callback_arg, u_int32_t code, 239 struct cam_path *path, void *arg); 240 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 241 static void cdshorttimeout(void *arg); 242 static void cdschedule(struct cam_periph *periph, int priority); 243 static void cdrunchangerqueue(void *arg); 244 static void cdchangerschedule(struct cd_softc *softc); 245 static int cdrunccb(union ccb *ccb, 246 int (*error_routine)(union ccb *ccb, 247 u_int32_t cam_flags, 248 u_int32_t sense_flags), 249 u_int32_t cam_flags, u_int32_t sense_flags); 250 static union ccb *cdgetccb(struct cam_periph *periph, 251 u_int32_t priority); 252 static void cddone(struct cam_periph *periph, 253 union ccb *start_ccb); 254 static int cderror(union ccb *ccb, u_int32_t cam_flags, 255 u_int32_t sense_flags); 256 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 257 static int cdgetpagesize(int page_num); 258 static void cdprevent(struct cam_periph *periph, int action); 259 static int cdcheckmedia(struct cam_periph *periph); 260 static int cdsize(struct cam_periph *periph, u_int32_t *size); 261 static int cd6byteworkaround(union ccb *ccb); 262 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 263 u_int32_t start, u_int8_t *data, 264 u_int32_t len, u_int32_t sense_flags); 265 static int cdgetmode(struct cam_periph *periph, 266 struct cd_mode_params *data, u_int32_t page); 267 static int cdsetmode(struct cam_periph *periph, 268 struct cd_mode_params *data); 269 static int cdplay(struct cam_periph *periph, u_int32_t blk, 270 u_int32_t len); 271 static int cdreadsubchannel(struct cam_periph *periph, 272 u_int32_t mode, u_int32_t format, 273 int track, 274 struct cd_sub_channel_info *data, 275 u_int32_t len); 276 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 277 u_int32_t starts, u_int32_t startf, 278 u_int32_t endm, u_int32_t ends, 279 u_int32_t endf); 280 static int cdplaytracks(struct cam_periph *periph, 281 u_int32_t strack, u_int32_t sindex, 282 u_int32_t etrack, u_int32_t eindex); 283 static int cdpause(struct cam_periph *periph, u_int32_t go); 284 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 285 static int cdstartunit(struct cam_periph *periph, int load); 286 static int cdsetspeed(struct cam_periph *periph, 287 u_int32_t rdspeed, u_int32_t wrspeed); 288 static int cdreportkey(struct cam_periph *periph, 289 struct dvd_authinfo *authinfo); 290 static int cdsendkey(struct cam_periph *periph, 291 struct dvd_authinfo *authinfo); 292 static int cdreaddvdstructure(struct cam_periph *periph, 293 struct dvd_struct *dvdstruct); 294 295 static struct periph_driver cddriver = 296 { 297 cdinit, "cd", 298 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 299 }; 300 301 PERIPHDRIVER_DECLARE(cd, cddriver); 302 303 static struct dev_ops cd_ops = { 304 { "cd", 0, D_DISK | D_MPSAFE }, 305 .d_open = cdopen, 306 .d_close = cdclose, 307 .d_read = physread, 308 .d_write = physwrite, 309 .d_ioctl = cdioctl, 310 .d_strategy = cdstrategy 311 }; 312 313 static struct extend_array *cdperiphs; 314 315 #ifndef CHANGER_MIN_BUSY_SECONDS 316 #define CHANGER_MIN_BUSY_SECONDS 5 317 #endif 318 #ifndef CHANGER_MAX_BUSY_SECONDS 319 #define CHANGER_MAX_BUSY_SECONDS 15 320 #endif 321 322 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 323 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 324 325 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 326 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 327 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 328 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 329 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 330 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 331 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 332 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 333 334 struct cdchanger { 335 path_id_t path_id; 336 target_id_t target_id; 337 int num_devices; 338 struct camq devq; 339 struct timeval start_time; 340 struct cd_softc *cur_device; 341 struct callout short_handle; 342 struct callout long_handle; 343 volatile cd_changer_flags flags; 344 STAILQ_ENTRY(cdchanger) changer_links; 345 STAILQ_HEAD(chdevlist, cd_softc) chluns; 346 }; 347 348 static struct lock changerq_lock; 349 static STAILQ_HEAD(changerlist, cdchanger) changerq; 350 static int num_changers; 351 352 MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 353 354 static void 355 cdinit(void) 356 { 357 cam_status status; 358 359 lockinit(&changerq_lock, "cdchangerq", 0, LK_CANRECURSE); 360 STAILQ_INIT(&changerq); 361 362 /* 363 * Create our extend array for storing the devices we attach to. 364 */ 365 cdperiphs = cam_extend_new(); 366 if (cdperiphs == NULL) { 367 kprintf("cd: Failed to alloc extend array!\n"); 368 return; 369 } 370 371 /* 372 * Install a global async callback. This callback will 373 * receive async callbacks like "new device found". 374 */ 375 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 376 377 if (status != CAM_REQ_CMP) { 378 kprintf("cd: Failed to attach master async callback " 379 "due to status 0x%x!\n", status); 380 } 381 } 382 383 static void 384 cdoninvalidate(struct cam_periph *periph) 385 { 386 struct cd_softc *softc; 387 struct buf *q_bp; 388 struct bio *q_bio; 389 390 softc = (struct cd_softc *)periph->softc; 391 392 /* 393 * De-register any async callbacks. 394 */ 395 xpt_register_async(0, cdasync, periph, periph->path); 396 397 softc->flags |= CD_FLAG_INVALID; 398 399 /* 400 * Return all queued I/O with ENXIO. 401 * XXX Handle any transactions queued to the card 402 * with XPT_ABORT_CCB. 403 */ 404 while ((q_bio = bioq_takefirst(&softc->bio_queue)) != NULL) { 405 q_bp = q_bio->bio_buf; 406 q_bp->b_resid = q_bp->b_bcount; 407 q_bp->b_error = ENXIO; 408 q_bp->b_flags |= B_ERROR; 409 biodone(q_bio); 410 } 411 412 /* 413 * If this device is part of a changer, and it was scheduled 414 * to run, remove it from the run queue since we just nuked 415 * all of its scheduled I/O. 416 */ 417 if ((softc->flags & CD_FLAG_CHANGER) 418 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 419 camq_remove(&softc->changer->devq, softc->pinfo.index); 420 421 xpt_print(periph->path, "lost device\n"); 422 } 423 424 static void 425 cdcleanup(struct cam_periph *periph) 426 { 427 struct cd_softc *softc; 428 429 softc = (struct cd_softc *)periph->softc; 430 431 xpt_print(periph->path, "removing device entry\n"); 432 433 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 434 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 435 xpt_print(periph->path, "can't remove sysctl context\n"); 436 } 437 438 /* 439 * In the queued, non-active case, the device in question 440 * has already been removed from the changer run queue. Since this 441 * device is active, we need to de-activate it, and schedule 442 * another device to run. (if there is another one to run) 443 */ 444 if ((softc->flags & CD_FLAG_CHANGER) 445 && (softc->flags & CD_FLAG_ACTIVE)) { 446 447 /* 448 * The purpose of the short timeout is soley to determine 449 * whether the current device has finished or not. Well, 450 * since we're removing the active device, we know that it 451 * is finished. So, get rid of the short timeout. 452 * Otherwise, if we're in the time period before the short 453 * timeout fires, and there are no other devices in the 454 * queue to run, there won't be any other device put in the 455 * active slot. i.e., when we call cdrunchangerqueue() 456 * below, it won't do anything. Then, when the short 457 * timeout fires, it'll look at the "current device", which 458 * we are free below, and possibly panic the kernel on a 459 * bogus pointer reference. 460 * 461 * The long timeout doesn't really matter, since we 462 * decrement the qfrozen_cnt to indicate that there is 463 * nothing in the active slot now. Therefore, there won't 464 * be any bogus pointer references there. 465 */ 466 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 467 callout_stop(&softc->changer->short_handle); 468 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 469 } 470 softc->changer->devq.qfrozen_cnt--; 471 softc->changer->flags |= CHANGER_MANUAL_CALL; 472 cdrunchangerqueue(softc->changer); 473 } 474 475 /* 476 * If we're removing the last device on the changer, go ahead and 477 * remove the changer device structure. 478 */ 479 if ((softc->flags & CD_FLAG_CHANGER) 480 && (--softc->changer->num_devices == 0)) { 481 482 /* 483 * Theoretically, there shouldn't be any timeouts left, but 484 * I'm not completely sure that that will be the case. So, 485 * it won't hurt to check and see if there are any left. 486 */ 487 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 488 callout_stop(&softc->changer->long_handle); 489 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 490 } 491 492 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 493 callout_stop(&softc->changer->short_handle); 494 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 495 } 496 497 lockmgr(&changerq_lock, LK_EXCLUSIVE); 498 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 499 changer_links); 500 num_changers--; 501 lockmgr(&changerq_lock, LK_RELEASE); 502 xpt_print(periph->path, "removing changer entry\n"); 503 kfree(softc->changer, M_DEVBUF); 504 } 505 devstat_remove_entry(&softc->device_stats); 506 cam_extend_release(cdperiphs, periph->unit_number); 507 if (softc->disk.d_rawdev) { 508 cam_periph_unlock(periph); 509 disk_destroy(&softc->disk); 510 cam_periph_lock(periph); 511 } 512 kfree(softc, M_DEVBUF); 513 } 514 515 static void 516 cdasync(void *callback_arg, u_int32_t code, 517 struct cam_path *path, void *arg) 518 { 519 struct cam_periph *periph; 520 521 periph = (struct cam_periph *)callback_arg; 522 523 switch (code) { 524 case AC_FOUND_DEVICE: 525 { 526 struct ccb_getdev *cgd; 527 cam_status status; 528 529 cgd = (struct ccb_getdev *)arg; 530 if (cgd == NULL) 531 break; 532 533 if (SID_TYPE(&cgd->inq_data) != T_CDROM 534 && SID_TYPE(&cgd->inq_data) != T_WORM) 535 break; 536 537 /* 538 * Don't complain if a valid peripheral is already attached. 539 */ 540 periph = cam_periph_find(cgd->ccb_h.path, "cd"); 541 if (periph && (periph->flags & CAM_PERIPH_INVALID) == 0) 542 break; 543 544 /* 545 * Allocate a peripheral instance for 546 * this device and start the probe 547 * process. 548 */ 549 status = cam_periph_alloc(cdregister, cdoninvalidate, 550 cdcleanup, cdstart, 551 "cd", CAM_PERIPH_BIO, 552 cgd->ccb_h.path, cdasync, 553 AC_FOUND_DEVICE, cgd); 554 555 if (status != CAM_REQ_CMP && status != CAM_REQ_INPROG) { 556 kprintf("cdasync: Unable to attach new device " 557 "due to status 0x%x\n", status); 558 } 559 break; 560 } 561 case AC_SENT_BDR: 562 case AC_BUS_RESET: 563 { 564 struct cd_softc *softc; 565 struct ccb_hdr *ccbh; 566 567 softc = (struct cd_softc *)periph->softc; 568 /* 569 * Don't fail on the expected unit attention 570 * that will occur. 571 */ 572 softc->flags |= CD_FLAG_RETRY_UA; 573 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 574 ccbh->ccb_state |= CD_CCB_RETRY_UA; 575 /* FALLTHROUGH */ 576 } 577 default: 578 cam_periph_async(periph, code, path, arg); 579 break; 580 } 581 } 582 583 static void 584 cdsysctlinit(void *context, int pending) 585 { 586 struct cam_periph *periph; 587 struct cd_softc *softc; 588 char tmpstr[80], tmpstr2[80]; 589 590 periph = (struct cam_periph *)context; 591 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 592 return; 593 } 594 595 softc = (struct cd_softc *)periph->softc; 596 ksnprintf(tmpstr, sizeof(tmpstr), 597 "CAM CD unit %d", periph->unit_number); 598 ksnprintf(tmpstr2, sizeof(tmpstr2), 599 "%d", periph->unit_number); 600 601 sysctl_ctx_free(&softc->sysctl_ctx); 602 sysctl_ctx_init(&softc->sysctl_ctx); 603 softc->flags |= CD_FLAG_SCTX_INIT; 604 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 605 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 606 tmpstr2, CTLFLAG_RD, 0, tmpstr); 607 608 if (softc->sysctl_tree == NULL) { 609 kprintf("cdsysctlinit: unable to allocate sysctl tree\n"); 610 cam_periph_release(periph); 611 return; 612 } 613 614 /* 615 * Now register the sysctl handler, so the user can the value on 616 * the fly. 617 */ 618 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 619 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 620 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 621 "Minimum CDB size"); 622 623 cam_periph_release(periph); 624 } 625 626 /* 627 * We have a handler function for this so we can check the values when the 628 * user sets them, instead of every time we look at them. 629 */ 630 static int 631 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 632 { 633 int error, value; 634 635 value = *(int *)arg1; 636 637 error = sysctl_handle_int(oidp, &value, 0, req); 638 639 if ((error != 0) || (req->newptr == NULL)) 640 return (error); 641 642 /* 643 * The only real values we can have here are 6 or 10. I don't 644 * really forsee having 12 be an option at any time in the future. 645 * So if the user sets something less than or equal to 6, we'll set 646 * it to 6. If he sets something greater than 6, we'll set it to 10. 647 * 648 * I suppose we could just return an error here for the wrong values, 649 * but I don't think it's necessary to do so, as long as we can 650 * determine the user's intent without too much trouble. 651 */ 652 if (value < 6) 653 value = 6; 654 else if (value > 6) 655 value = 10; 656 657 *(int *)arg1 = value; 658 659 return (0); 660 } 661 662 663 static cam_status 664 cdregister(struct cam_periph *periph, void *arg) 665 { 666 struct cd_softc *softc; 667 struct ccb_pathinq *cpi; 668 struct ccb_getdev *cgd; 669 char tmpstr[80]; 670 caddr_t match; 671 672 cgd = (struct ccb_getdev *)arg; 673 if (periph == NULL) { 674 kprintf("cdregister: periph was NULL!!\n"); 675 return(CAM_REQ_CMP_ERR); 676 } 677 if (cgd == NULL) { 678 kprintf("cdregister: no getdev CCB, can't register device\n"); 679 return(CAM_REQ_CMP_ERR); 680 } 681 682 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 683 sysctl_ctx_init(&softc->sysctl_ctx); 684 LIST_INIT(&softc->pending_ccbs); 685 STAILQ_INIT(&softc->mode_queue); 686 softc->state = CD_STATE_PROBE; 687 bioq_init(&softc->bio_queue); 688 if (SID_IS_REMOVABLE(&cgd->inq_data)) 689 softc->flags |= CD_FLAG_DISC_REMOVABLE; 690 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 691 softc->flags |= CD_FLAG_TAGGED_QUEUING; 692 693 periph->softc = softc; 694 softc->periph = periph; 695 696 cam_extend_set(cdperiphs, periph->unit_number, periph); 697 698 /* 699 * See if this device has any quirks. 700 */ 701 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 702 (caddr_t)cd_quirk_table, 703 NELEM(cd_quirk_table), 704 sizeof(*cd_quirk_table), scsi_inquiry_match); 705 706 if (match != NULL) 707 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 708 else 709 softc->quirks = CD_Q_NONE; 710 711 /* Check if the SIM does not want 6 byte commands */ 712 cpi = &xpt_alloc_ccb()->cpi; 713 xpt_setup_ccb(&cpi->ccb_h, periph->path, /*priority*/1); 714 cpi->ccb_h.func_code = XPT_PATH_INQ; 715 xpt_action((union ccb *)cpi); 716 if (cpi->ccb_h.status == CAM_REQ_CMP && (cpi->hba_misc & PIM_NO_6_BYTE)) 717 softc->quirks |= CD_Q_10_BYTE_ONLY; 718 xpt_free_ccb(&cpi->ccb_h); 719 720 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 721 722 /* The default is 6 byte commands, unless quirked otherwise */ 723 if (softc->quirks & CD_Q_10_BYTE_ONLY) 724 softc->minimum_command_size = 10; 725 else 726 softc->minimum_command_size = 6; 727 728 /* 729 * Load the user's default, if any. 730 */ 731 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 732 periph->unit_number); 733 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 734 735 /* 6 and 10 are the only permissible values here. */ 736 if (softc->minimum_command_size < 6) 737 softc->minimum_command_size = 6; 738 else if (softc->minimum_command_size > 6) 739 softc->minimum_command_size = 10; 740 741 /* 742 * We need to register the statistics structure for this device, 743 * but we don't have the blocksize yet for it. So, we register 744 * the structure and indicate that we don't have the blocksize 745 * yet. Unlike other SCSI peripheral drivers, we explicitly set 746 * the device type here to be CDROM, rather than just ORing in 747 * the device type. This is because this driver can attach to either 748 * CDROM or WORM devices, and we want this peripheral driver to 749 * show up in the devstat list as a CD peripheral driver, not a 750 * WORM peripheral driver. WORM drives will also have the WORM 751 * driver attached to them. 752 */ 753 cam_periph_unlock(periph); 754 devstat_add_entry(&softc->device_stats, "cd", 755 periph->unit_number, 0, 756 DEVSTAT_BS_UNAVAILABLE, 757 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 758 DEVSTAT_PRIORITY_CD); 759 disk_create(periph->unit_number, &softc->disk, &cd_ops); 760 disk_setdisktype(&softc->disk, "optical"); 761 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 762 softc->disk.d_info.d_dsflags = DSO_ONESLICE | DSO_COMPATLABEL | 763 DSO_COMPATPARTA; 764 cam_periph_lock(periph); 765 766 /* 767 * Add an async callback so that we get 768 * notified if this device goes away. 769 */ 770 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 771 cdasync, periph, periph->path); 772 773 /* 774 * If the target lun is greater than 0, we most likely have a CD 775 * changer device. Check the quirk entries as well, though, just 776 * in case someone has a CD tower with one lun per drive or 777 * something like that. Also, if we know up front that a 778 * particular device is a changer, we can mark it as such starting 779 * with lun 0, instead of lun 1. It shouldn't be necessary to have 780 * a quirk entry to define something as a changer, however. 781 */ 782 if (((cgd->ccb_h.target_lun > 0) 783 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 784 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 785 struct cdchanger *nchanger; 786 struct cam_periph *nperiph; 787 struct cam_path *path; 788 cam_status status; 789 int found; 790 791 /* Set the changer flag in the current device's softc */ 792 softc->flags |= CD_FLAG_CHANGER; 793 794 /* 795 * Now, look around for an existing changer device with the 796 * same path and target ID as the current device. 797 */ 798 lockmgr(&changerq_lock, LK_EXCLUSIVE); 799 for (found = 0, 800 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 801 nchanger != NULL; 802 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 803 if ((nchanger->path_id == cgd->ccb_h.path_id) 804 && (nchanger->target_id == cgd->ccb_h.target_id)) { 805 found = 1; 806 break; 807 } 808 } 809 lockmgr(&changerq_lock, LK_RELEASE); 810 811 /* 812 * If we found a matching entry, just add this device to 813 * the list of devices on this changer. 814 */ 815 if (found == 1) { 816 struct chdevlist *chlunhead; 817 818 chlunhead = &nchanger->chluns; 819 820 /* 821 * XXX KDM look at consolidating this code with the 822 * code below in a separate function. 823 */ 824 825 /* 826 * Create a path with lun id 0, and see if we can 827 * find a matching device 828 */ 829 status = xpt_create_path(&path, /*periph*/ periph, 830 cgd->ccb_h.path_id, 831 cgd->ccb_h.target_id, 0); 832 833 if ((status == CAM_REQ_CMP) 834 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 835 struct cd_softc *nsoftc; 836 837 nsoftc = (struct cd_softc *)nperiph->softc; 838 839 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 840 nsoftc->flags |= CD_FLAG_CHANGER; 841 nchanger->num_devices++; 842 if (camq_resize(&nchanger->devq, 843 nchanger->num_devices)!=CAM_REQ_CMP){ 844 kprintf("cdregister: " 845 "camq_resize " 846 "failed, changer " 847 "support may " 848 "be messed up\n"); 849 } 850 nsoftc->changer = nchanger; 851 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 852 853 STAILQ_INSERT_TAIL(&nchanger->chluns, 854 nsoftc,changer_links); 855 } 856 xpt_free_path(path); 857 } else if (status == CAM_REQ_CMP) 858 xpt_free_path(path); 859 else { 860 kprintf("cdregister: unable to allocate path\n" 861 "cdregister: changer support may be " 862 "broken\n"); 863 } 864 865 nchanger->num_devices++; 866 867 softc->changer = nchanger; 868 softc->pinfo.index = CAM_UNQUEUED_INDEX; 869 870 if (camq_resize(&nchanger->devq, 871 nchanger->num_devices) != CAM_REQ_CMP) { 872 kprintf("cdregister: camq_resize " 873 "failed, changer support may " 874 "be messed up\n"); 875 } 876 877 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 878 } 879 /* 880 * In this case, we don't already have an entry for this 881 * particular changer, so we need to create one, add it to 882 * the queue, and queue this device on the list for this 883 * changer. Before we queue this device, however, we need 884 * to search for lun id 0 on this target, and add it to the 885 * queue first, if it exists. (and if it hasn't already 886 * been marked as part of the changer.) 887 */ 888 else { 889 nchanger = kmalloc(sizeof(struct cdchanger), 890 M_DEVBUF, M_INTWAIT | M_ZERO); 891 callout_init_lk(&nchanger->short_handle, 892 periph->sim->lock); 893 callout_init_lk(&nchanger->long_handle, 894 periph->sim->lock); 895 if (camq_init(&nchanger->devq, 1) != 0) { 896 softc->flags &= ~CD_FLAG_CHANGER; 897 kprintf("cdregister: changer support " 898 "disabled\n"); 899 goto cdregisterexit; 900 } 901 902 nchanger->path_id = cgd->ccb_h.path_id; 903 nchanger->target_id = cgd->ccb_h.target_id; 904 905 /* this is superfluous, but it makes things clearer */ 906 nchanger->num_devices = 0; 907 908 STAILQ_INIT(&nchanger->chluns); 909 910 callout_init_lk(&nchanger->long_handle, 911 periph->sim->lock); 912 callout_init_lk(&nchanger->short_handle, 913 periph->sim->lock); 914 915 lockmgr(&changerq_lock, LK_EXCLUSIVE); 916 num_changers++; 917 STAILQ_INSERT_TAIL(&changerq, nchanger, 918 changer_links); 919 lockmgr(&changerq_lock, LK_RELEASE); 920 921 /* 922 * Create a path with lun id 0, and see if we can 923 * find a matching device 924 */ 925 status = xpt_create_path(&path, /*periph*/ periph, 926 cgd->ccb_h.path_id, 927 cgd->ccb_h.target_id, 0); 928 929 /* 930 * If we were able to allocate the path, and if we 931 * find a matching device and it isn't already 932 * marked as part of a changer, then we add it to 933 * the current changer. 934 */ 935 if ((status == CAM_REQ_CMP) 936 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 937 && ((((struct cd_softc *)periph->softc)->flags & 938 CD_FLAG_CHANGER) == 0)) { 939 struct cd_softc *nsoftc; 940 941 nsoftc = (struct cd_softc *)nperiph->softc; 942 943 nsoftc->flags |= CD_FLAG_CHANGER; 944 nchanger->num_devices++; 945 if (camq_resize(&nchanger->devq, 946 nchanger->num_devices) != CAM_REQ_CMP) { 947 kprintf("cdregister: camq_resize " 948 "failed, changer support may " 949 "be messed up\n"); 950 } 951 nsoftc->changer = nchanger; 952 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 953 954 STAILQ_INSERT_TAIL(&nchanger->chluns, 955 nsoftc, changer_links); 956 xpt_free_path(path); 957 } else if (status == CAM_REQ_CMP) 958 xpt_free_path(path); 959 else { 960 kprintf("cdregister: unable to allocate path\n" 961 "cdregister: changer support may be " 962 "broken\n"); 963 } 964 965 softc->changer = nchanger; 966 softc->pinfo.index = CAM_UNQUEUED_INDEX; 967 nchanger->num_devices++; 968 if (camq_resize(&nchanger->devq, 969 nchanger->num_devices) != CAM_REQ_CMP) { 970 kprintf("cdregister: camq_resize " 971 "failed, changer support may " 972 "be messed up\n"); 973 } 974 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 975 changer_links); 976 } 977 } 978 979 cdregisterexit: 980 981 /* 982 * Refcount and block open attempts until we are setup 983 * Can't block 984 */ 985 cam_periph_hold(periph, 0); 986 987 if ((softc->flags & CD_FLAG_CHANGER) == 0) 988 xpt_schedule(periph, /*priority*/5); 989 else 990 cdschedule(periph, /*priority*/ 5); 991 992 return(CAM_REQ_CMP); 993 } 994 995 static int 996 cdopen(struct dev_open_args *ap) 997 { 998 cdev_t dev = ap->a_head.a_dev; 999 struct cam_periph *periph; 1000 struct cd_softc *softc; 1001 int unit, error; 1002 1003 /* 1004 * Disallow CAM access if RESTRICTEDROOT 1005 */ 1006 if (caps_priv_check_self(SYSCAP_RESTRICTEDROOT)) 1007 return (EPERM); 1008 1009 unit = dkunit(dev); 1010 periph = cam_extend_get(cdperiphs, unit); 1011 1012 if (periph == NULL) 1013 return (ENXIO); 1014 1015 softc = (struct cd_softc *)periph->softc; 1016 1017 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1018 return(ENXIO); 1019 1020 cam_periph_lock(periph); 1021 1022 if (softc->flags & CD_FLAG_INVALID) { 1023 cam_periph_unlock(periph); 1024 cam_periph_release(periph); 1025 return(ENXIO); 1026 } 1027 1028 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 1029 cam_periph_unlock(periph); 1030 cam_periph_release(periph); 1031 return (error); 1032 } 1033 1034 /* Closes aren't symmetrical with opens, so fix up the refcounting. */ 1035 if (softc->flags & CD_FLAG_OPEN) 1036 cam_periph_release(periph); 1037 else 1038 softc->flags |= CD_FLAG_OPEN; 1039 1040 /* 1041 * Check for media, and set the appropriate flags. We don't bail 1042 * if we don't have media, but then we don't allow anything but the 1043 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1044 * 1045 * XXX KDM for now, we do fail the open if we don't have media. We 1046 * can change this once we've figured out how to make the slice 1047 * code work well with media changing underneath it. 1048 */ 1049 error = cdcheckmedia(periph); 1050 1051 if (error) { 1052 softc->flags |= CD_FLAG_CAP_MUTE; 1053 } else { 1054 softc->flags &= ~CD_FLAG_CAP_MUTE; 1055 } 1056 1057 cdprevent(periph, PR_PREVENT); 1058 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1059 cam_periph_unhold(periph, 1); 1060 /* stays acquired */ 1061 1062 return (0); 1063 } 1064 1065 static int 1066 cdclose(struct dev_close_args *ap) 1067 { 1068 cdev_t dev = ap->a_head.a_dev; 1069 struct cam_periph *periph; 1070 struct cd_softc *softc; 1071 struct disk_info *info; 1072 int unit; 1073 1074 unit = dkunit(dev); 1075 periph = cam_extend_get(cdperiphs, unit); 1076 if (periph == NULL) 1077 return (ENXIO); 1078 1079 softc = (struct cd_softc *)periph->softc; 1080 1081 cam_periph_lock(periph); 1082 cam_periph_hold(periph, 0); 1083 1084 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1085 cdprevent(periph, PR_ALLOW); 1086 1087 /* 1088 * Unconditionally set the dsopen() flags back to their default 1089 * state. 1090 */ 1091 info = &softc->disk.d_info; 1092 info->d_dsflags &= ~DSO_NOLABELS; 1093 info->d_dsflags |= DSO_COMPATLABEL; 1094 1095 /* 1096 * Since we're closing this CD, mark the blocksize as unavailable. 1097 * It will be marked as available when the CD is opened again. 1098 */ 1099 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 1100 1101 /* 1102 * We'll check the media and toc again at the next open(). 1103 */ 1104 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC|CD_FLAG_OPEN); 1105 1106 cam_periph_unhold(periph, 1); 1107 cam_periph_release(periph); 1108 1109 return (0); 1110 } 1111 1112 static void 1113 cdshorttimeout(void *arg) 1114 { 1115 struct cdchanger *changer; 1116 1117 changer = (struct cdchanger *)arg; 1118 1119 /* Always clear the short timeout flag, since that's what we're in */ 1120 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1121 1122 /* 1123 * Check to see if there is any more pending or outstanding I/O for 1124 * this device. If not, move it out of the active slot. 1125 */ 1126 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1127 && (changer->cur_device->outstanding_cmds == 0)) { 1128 changer->flags |= CHANGER_MANUAL_CALL; 1129 cdrunchangerqueue(changer); 1130 } 1131 } 1132 1133 /* 1134 * This is a wrapper for xpt_schedule. It only applies to changers. 1135 */ 1136 static void 1137 cdschedule(struct cam_periph *periph, int priority) 1138 { 1139 struct cd_softc *softc; 1140 1141 softc = (struct cd_softc *)periph->softc; 1142 1143 /* 1144 * If this device isn't currently queued, and if it isn't 1145 * the active device, then we queue this device and run the 1146 * changer queue if there is no timeout scheduled to do it. 1147 * If this device is the active device, just schedule it 1148 * to run again. If this device is queued, there should be 1149 * a timeout in place already that will make sure it runs. 1150 */ 1151 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1152 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1153 /* 1154 * We don't do anything with the priority here. 1155 * This is strictly a fifo queue. 1156 */ 1157 softc->pinfo.priority = 1; 1158 softc->pinfo.generation = ++softc->changer->devq.generation; 1159 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1160 1161 /* 1162 * Since we just put a device in the changer queue, 1163 * check and see if there is a timeout scheduled for 1164 * this changer. If so, let the timeout handle 1165 * switching this device into the active slot. If 1166 * not, manually call the timeout routine to 1167 * bootstrap things. 1168 */ 1169 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1170 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1171 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1172 softc->changer->flags |= CHANGER_MANUAL_CALL; 1173 cdrunchangerqueue(softc->changer); 1174 } 1175 } else if ((softc->flags & CD_FLAG_ACTIVE) 1176 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) { 1177 xpt_schedule(periph, priority); 1178 } 1179 } 1180 1181 static void 1182 cdrunchangerqueue(void *arg) 1183 { 1184 struct cd_softc *softc; 1185 struct cdchanger *changer; 1186 int called_from_timeout; 1187 1188 changer = (struct cdchanger *)arg; 1189 1190 /* 1191 * If we have NOT been called from cdstrategy() or cddone(), and 1192 * instead from a timeout routine, go ahead and clear the 1193 * timeout flag. 1194 */ 1195 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1196 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1197 called_from_timeout = 1; 1198 } else 1199 called_from_timeout = 0; 1200 1201 /* Always clear the manual call flag */ 1202 changer->flags &= ~CHANGER_MANUAL_CALL; 1203 1204 /* nothing to do if the queue is empty */ 1205 if (changer->devq.entries <= 0) { 1206 return; 1207 } 1208 1209 /* 1210 * If the changer queue is frozen, that means we have an active 1211 * device. 1212 */ 1213 if (changer->devq.qfrozen_cnt > 0) { 1214 1215 /* 1216 * We always need to reset the frozen count and clear the 1217 * active flag. 1218 */ 1219 changer->devq.qfrozen_cnt--; 1220 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1221 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1222 1223 if (changer->cur_device->outstanding_cmds > 0) { 1224 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1225 changer->cur_device->bufs_left = 1226 changer->cur_device->outstanding_cmds; 1227 if (called_from_timeout) { 1228 callout_reset(&changer->long_handle, 1229 changer_max_busy_seconds * hz, 1230 cdrunchangerqueue, changer); 1231 changer->flags |= CHANGER_TIMEOUT_SCHED; 1232 } 1233 return; 1234 } 1235 1236 /* 1237 * Check to see whether the current device has any I/O left 1238 * to do. If so, requeue it at the end of the queue. If 1239 * not, there is no need to requeue it. 1240 */ 1241 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1242 1243 changer->cur_device->pinfo.generation = 1244 ++changer->devq.generation; 1245 camq_insert(&changer->devq, 1246 (cam_pinfo *)changer->cur_device); 1247 } 1248 } 1249 1250 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1251 1252 changer->cur_device = softc; 1253 1254 changer->devq.qfrozen_cnt++; 1255 softc->flags |= CD_FLAG_ACTIVE; 1256 1257 /* Just in case this device is waiting */ 1258 wakeup(&softc->changer); 1259 xpt_schedule(softc->periph, /*priority*/ 1); 1260 1261 /* 1262 * Get rid of any pending timeouts, and set a flag to schedule new 1263 * ones so this device gets its full time quantum. 1264 */ 1265 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1266 callout_stop(&changer->long_handle); 1267 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1268 } 1269 1270 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1271 callout_stop(&changer->short_handle); 1272 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1273 } 1274 1275 /* 1276 * We need to schedule timeouts, but we only do this after the 1277 * first transaction has completed. This eliminates the changer 1278 * switch time. 1279 */ 1280 changer->flags |= CHANGER_NEED_TIMEOUT; 1281 } 1282 1283 static void 1284 cdchangerschedule(struct cd_softc *softc) 1285 { 1286 struct cdchanger *changer; 1287 1288 changer = softc->changer; 1289 1290 /* 1291 * If this is a changer, and this is the current device, 1292 * and this device has at least the minimum time quantum to 1293 * run, see if we can switch it out. 1294 */ 1295 if ((softc->flags & CD_FLAG_ACTIVE) 1296 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1297 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1298 /* 1299 * We try three things here. The first is that we 1300 * check to see whether the schedule on completion 1301 * flag is set. If it is, we decrement the number 1302 * of buffers left, and if it's zero, we reschedule. 1303 * Next, we check to see whether the pending buffer 1304 * queue is empty and whether there are no 1305 * outstanding transactions. If so, we reschedule. 1306 * Next, we see if the pending buffer queue is empty. 1307 * If it is, we set the number of buffers left to 1308 * the current active buffer count and set the 1309 * schedule on complete flag. 1310 */ 1311 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1312 if (--softc->bufs_left == 0) { 1313 softc->changer->flags |= 1314 CHANGER_MANUAL_CALL; 1315 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1316 cdrunchangerqueue(softc->changer); 1317 } 1318 } else if ((bioq_first(&softc->bio_queue) == NULL) 1319 && (softc->outstanding_cmds == 0)) { 1320 softc->changer->flags |= CHANGER_MANUAL_CALL; 1321 cdrunchangerqueue(softc->changer); 1322 } 1323 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1324 && (softc->flags & CD_FLAG_ACTIVE)) { 1325 1326 /* 1327 * Now that the first transaction to this 1328 * particular device has completed, we can go ahead 1329 * and schedule our timeouts. 1330 */ 1331 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1332 callout_reset(&changer->long_handle, 1333 changer_max_busy_seconds * hz, 1334 cdrunchangerqueue, changer); 1335 changer->flags |= CHANGER_TIMEOUT_SCHED; 1336 } else 1337 kprintf("cdchangerschedule: already have a long" 1338 " timeout!\n"); 1339 1340 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1341 callout_reset(&changer->short_handle, 1342 changer_min_busy_seconds * hz, 1343 cdshorttimeout, changer); 1344 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1345 } else 1346 kprintf("cdchangerschedule: already have a short " 1347 "timeout!\n"); 1348 1349 /* 1350 * We just scheduled timeouts, no need to schedule 1351 * more. 1352 */ 1353 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1354 1355 } 1356 } 1357 1358 static int 1359 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1360 u_int32_t cam_flags, 1361 u_int32_t sense_flags), 1362 u_int32_t cam_flags, u_int32_t sense_flags) 1363 { 1364 struct cd_softc *softc; 1365 struct cam_periph *periph; 1366 int error; 1367 1368 periph = xpt_path_periph(ccb->ccb_h.path); 1369 softc = (struct cd_softc *)periph->softc; 1370 1371 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1372 &softc->device_stats); 1373 1374 if (softc->flags & CD_FLAG_CHANGER) 1375 cdchangerschedule(softc); 1376 1377 return(error); 1378 } 1379 1380 static union ccb * 1381 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1382 { 1383 struct cd_softc *softc; 1384 static union ccb *ccb; 1385 1386 softc = (struct cd_softc *)periph->softc; 1387 1388 if (softc->flags & CD_FLAG_CHANGER) { 1389 /* 1390 * This should work the first time this device is woken up, 1391 * but just in case it doesn't, we use a while loop. 1392 */ 1393 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1394 /* 1395 * If this changer isn't already queued, queue it up. 1396 */ 1397 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1398 softc->pinfo.priority = 1; 1399 softc->pinfo.generation = 1400 ++softc->changer->devq.generation; 1401 camq_insert(&softc->changer->devq, 1402 (cam_pinfo *)softc); 1403 } 1404 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1405 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1406 && ((softc->changer->flags 1407 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1408 softc->changer->flags |= CHANGER_MANUAL_CALL; 1409 cdrunchangerqueue(softc->changer); 1410 } else 1411 sim_lock_sleep(&softc->changer, 0, "cgticb", 0, 1412 periph->sim->lock); 1413 } 1414 } 1415 ccb = cam_periph_getccb(periph, priority); 1416 ccb->ccb_h.ccb_state = CD_CCB_POLLED; 1417 1418 return ccb; 1419 } 1420 1421 /* 1422 * Actually translate the requested transfer into one the physical driver 1423 * can understand. The transfer is described by a buf and will include 1424 * only one physical transfer. 1425 */ 1426 static int 1427 cdstrategy(struct dev_strategy_args *ap) 1428 { 1429 cdev_t dev = ap->a_head.a_dev; 1430 struct bio *bio = ap->a_bio; 1431 struct buf *bp = bio->bio_buf; 1432 struct cam_periph *periph; 1433 struct cd_softc *softc; 1434 u_int unit; 1435 1436 unit = dkunit(dev); 1437 periph = cam_extend_get(cdperiphs, unit); 1438 if (periph == NULL) { 1439 bp->b_error = ENXIO; 1440 goto bad; 1441 } 1442 1443 cam_periph_lock(periph); 1444 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1445 1446 softc = (struct cd_softc *)periph->softc; 1447 1448 /* 1449 * If the device has been made invalid, error out 1450 */ 1451 if ((softc->flags & CD_FLAG_INVALID)) { 1452 cam_periph_unlock(periph); 1453 bp->b_error = ENXIO; 1454 goto bad; 1455 } 1456 1457 /* 1458 * If we don't have valid media, look for it before trying to 1459 * schedule the I/O. 1460 */ 1461 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1462 int error; 1463 1464 error = cdcheckmedia(periph); 1465 if (error != 0) { 1466 cam_periph_unlock(periph); 1467 bp->b_error = error; 1468 goto bad; 1469 } 1470 } 1471 1472 /* 1473 * Place it in the queue of disk activities for this disk 1474 */ 1475 bioqdisksort(&softc->bio_queue, bio); 1476 1477 /* 1478 * Schedule ourselves for performing the work. We do things 1479 * differently for changers. 1480 */ 1481 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1482 xpt_schedule(periph, /* XXX priority */1); 1483 else 1484 cdschedule(periph, /* priority */ 1); 1485 1486 cam_periph_unlock(periph); 1487 return(0); 1488 bad: 1489 bp->b_flags |= B_ERROR; 1490 /* 1491 * Correctly set the buf to indicate a completed xfer 1492 */ 1493 bp->b_resid = bp->b_bcount; 1494 biodone(bio); 1495 return(0); 1496 } 1497 1498 static void 1499 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1500 { 1501 struct cd_softc *softc; 1502 struct bio *bio; 1503 struct buf *bp; 1504 struct ccb_scsiio *csio; 1505 struct scsi_read_capacity_data *rcap; 1506 1507 softc = (struct cd_softc *)periph->softc; 1508 1509 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1510 1511 switch (softc->state) { 1512 case CD_STATE_NORMAL: 1513 { 1514 bio = bioq_first(&softc->bio_queue); 1515 if (periph->immediate_priority <= periph->pinfo.priority) { 1516 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1517 1518 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1519 periph_links.sle); 1520 periph->immediate_priority = CAM_PRIORITY_NONE; 1521 wakeup(&periph->ccb_list); 1522 } else if (bio == NULL) { 1523 xpt_release_ccb(start_ccb); 1524 } else { 1525 bp = bio->bio_buf; 1526 bioq_remove(&softc->bio_queue, bio); 1527 1528 devstat_start_transaction(&softc->device_stats); 1529 1530 KKASSERT(bio->bio_offset % softc->params.blksize == 0); 1531 1532 scsi_read_write(&start_ccb->csio, 1533 /*retries*/4, 1534 /* cbfcnp */ cddone, 1535 MSG_SIMPLE_Q_TAG, 1536 /* read */(bp->b_cmd == BUF_CMD_READ), 1537 /* byte2 */ 0, 1538 /* minimum_cmd_size */ 10, 1539 /* lba */ 1540 bio->bio_offset / softc->params.blksize, 1541 bp->b_bcount / softc->params.blksize, 1542 /* data_ptr */ bp->b_data, 1543 /* dxfer_len */ bp->b_bcount, 1544 /* sense_len */ SSD_FULL_SIZE, 1545 /* timeout */ 30000); 1546 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1547 1548 1549 LIST_INSERT_HEAD(&softc->pending_ccbs, 1550 &start_ccb->ccb_h, periph_links.le); 1551 1552 softc->outstanding_cmds++; 1553 /* We expect a unit attention from this device */ 1554 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1555 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1556 softc->flags &= ~CD_FLAG_RETRY_UA; 1557 } 1558 1559 start_ccb->ccb_h.ccb_bio = bio; 1560 bio = bioq_first(&softc->bio_queue); 1561 1562 xpt_action(start_ccb); 1563 } 1564 if (bio != NULL) { 1565 /* Have more work to do, so ensure we stay scheduled */ 1566 xpt_schedule(periph, /* XXX priority */1); 1567 } 1568 break; 1569 } 1570 case CD_STATE_PROBE: 1571 { 1572 1573 rcap = kmalloc(sizeof(*rcap), M_SCSICD, M_INTWAIT); 1574 csio = &start_ccb->csio; 1575 scsi_read_capacity(csio, 1576 /*retries*/1, 1577 cddone, 1578 MSG_SIMPLE_Q_TAG, 1579 rcap, 1580 SSD_FULL_SIZE, 1581 /*timeout*/20000); 1582 start_ccb->ccb_h.ccb_bio = NULL; 1583 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1584 xpt_action(start_ccb); 1585 break; 1586 } 1587 } 1588 } 1589 1590 static void 1591 cddone(struct cam_periph *periph, union ccb *done_ccb) 1592 { 1593 struct cd_softc *softc; 1594 struct ccb_scsiio *csio; 1595 1596 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1597 1598 softc = (struct cd_softc *)periph->softc; 1599 csio = &done_ccb->csio; 1600 1601 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1602 case CD_CCB_BUFFER_IO: 1603 { 1604 struct buf *bp; 1605 struct bio *bio; 1606 int error; 1607 1608 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1609 bp = bio->bio_buf; 1610 error = 0; 1611 1612 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1613 int sf; 1614 1615 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1616 sf = SF_RETRY_UA; 1617 else 1618 sf = 0; 1619 1620 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1621 if (error == ERESTART) { 1622 /* 1623 * A retry was scheuled, so 1624 * just return. 1625 */ 1626 return; 1627 } 1628 } 1629 1630 if (error != 0) { 1631 struct bio *q_bio; 1632 struct buf *q_bp; 1633 1634 xpt_print(periph->path, 1635 "cddone: got error %#x back\n", error); 1636 while ((q_bio = bioq_takefirst(&softc->bio_queue)) != NULL) { 1637 q_bp = q_bio->bio_buf; 1638 q_bp->b_resid = q_bp->b_bcount; 1639 q_bp->b_error = EIO; 1640 q_bp->b_flags |= B_ERROR; 1641 biodone(q_bio); 1642 } 1643 bp->b_resid = bp->b_bcount; 1644 bp->b_error = error; 1645 bp->b_flags |= B_ERROR; 1646 cam_release_devq(done_ccb->ccb_h.path, 1647 /*relsim_flags*/0, 1648 /*reduction*/0, 1649 /*timeout*/0, 1650 /*getcount_only*/0); 1651 1652 } else { 1653 bp->b_resid = csio->resid; 1654 bp->b_error = 0; 1655 if (bp->b_resid != 0) { 1656 /* Short transfer ??? */ 1657 bp->b_flags |= B_ERROR; 1658 } 1659 } 1660 1661 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1662 softc->outstanding_cmds--; 1663 1664 if (softc->flags & CD_FLAG_CHANGER) 1665 cdchangerschedule(softc); 1666 1667 devstat_end_transaction_buf(&softc->device_stats, bp); 1668 biodone(bio); 1669 break; 1670 } 1671 case CD_CCB_PROBE: 1672 { 1673 /* 1674 * Currently (9/30/97) the longest possible announce 1675 * buffer is 108 bytes, for the first error case below. 1676 * That is 39 bytes for the basic string, 16 bytes for the 1677 * biggest sense key (hardware error), 52 bytes for the 1678 * text of the largest sense qualifier valid for a CDROM, 1679 * (0x72, 0x03 or 0x04, 0x03), and one byte for the 1680 * null terminating character. To allow for longer strings, 1681 * the announce buffer is 120 bytes. 1682 * 1683 * We need to call disk_setdiskinfo() before the disk 1684 * subsystem will allow any opens. Because additional 1685 * probe code is in cdopen() we do this now whether a CD 1686 * is present or not. 1687 */ 1688 struct scsi_read_capacity_data *rdcap; 1689 struct disk_info info; 1690 char announce_buf[120]; 1691 struct cd_params *cdp; 1692 int doinfo = 0; 1693 1694 cdp = &softc->params; 1695 bzero(&info, sizeof(info)); 1696 info.d_type = DTYPE_SCSI; 1697 info.d_dsflags &= ~DSO_COMPATLABEL; 1698 info.d_dsflags |= DSO_NOLABELS | DSO_COMPATPARTA; 1699 info.d_serialno = xpt_path_serialno(periph->path); 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 ksnprintf(announce_buf, sizeof(announce_buf), 1708 "cd present [%lu x %lu byte records]", 1709 cdp->disksize, (u_long)cdp->blksize); 1710 info.d_media_blksize = cdp->blksize; 1711 info.d_media_blocks = cdp->disksize; 1712 doinfo = 1; 1713 } else { 1714 int error; 1715 1716 /* 1717 * Retry any UNIT ATTENTION type errors. They 1718 * are expected at boot. 1719 */ 1720 error = cderror(done_ccb, CAM_RETRY_SELTO, 1721 SF_RETRY_UA | SF_NO_PRINT); 1722 if (error == ERESTART) { 1723 /* 1724 * A retry was scheuled, so 1725 * just return. 1726 */ 1727 return; 1728 } else if (error != 0) { 1729 struct scsi_sense_data *sense; 1730 int asc, ascq; 1731 int sense_key, error_code; 1732 int have_sense; 1733 cam_status status; 1734 struct ccb_getdev *cgd; 1735 1736 /* Don't wedge this device's queue */ 1737 cam_release_devq(done_ccb->ccb_h.path, 1738 /*relsim_flags*/0, 1739 /*reduction*/0, 1740 /*timeout*/0, 1741 /*getcount_only*/0); 1742 1743 status = done_ccb->ccb_h.status; 1744 1745 cgd = &xpt_alloc_ccb()->cgd; 1746 xpt_setup_ccb(&cgd->ccb_h, 1747 done_ccb->ccb_h.path, 1748 /* priority */ 1); 1749 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1750 xpt_action((union ccb *)cgd); 1751 1752 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1753 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1754 || ((status & CAM_AUTOSNS_VALID) == 0)) 1755 have_sense = FALSE; 1756 else 1757 have_sense = TRUE; 1758 1759 if (have_sense) { 1760 sense = &csio->sense_data; 1761 scsi_extract_sense(sense, &error_code, 1762 &sense_key, 1763 &asc, &ascq); 1764 } 1765 /* 1766 * Attach to anything that claims to be a 1767 * CDROM or WORM device, as long as it 1768 * doesn't return a "Logical unit not 1769 * supported" (0x25) error. 1770 */ 1771 if ((have_sense) && (asc != 0x25) 1772 && (error_code == SSD_CURRENT_ERROR)) { 1773 const char *sense_key_desc; 1774 const char *asc_desc; 1775 1776 scsi_sense_desc(sense_key, asc, ascq, 1777 &cgd->inq_data, 1778 &sense_key_desc, 1779 &asc_desc); 1780 ksnprintf(announce_buf, 1781 sizeof(announce_buf), 1782 "Attempt to query device " 1783 "size failed: %s, %s", 1784 sense_key_desc, 1785 asc_desc); 1786 info.d_media_blksize = 2048; 1787 doinfo = 1; 1788 } else if (SID_TYPE(&cgd->inq_data) == T_CDROM) { 1789 /* 1790 * We only print out an error for 1791 * CDROM type devices. For WORM 1792 * devices, we don't print out an 1793 * error since a few WORM devices 1794 * don't support CDROM commands. 1795 * If we have sense information, go 1796 * ahead and print it out. 1797 * Otherwise, just say that we 1798 * couldn't attach. 1799 */ 1800 1801 /* 1802 * Just print out the error, not 1803 * the full probe message, when we 1804 * don't attach. 1805 */ 1806 if (have_sense) 1807 scsi_sense_print( 1808 &done_ccb->csio); 1809 else { 1810 xpt_print(periph->path, 1811 "got CAM status %#x\n", 1812 done_ccb->ccb_h.status); 1813 } 1814 xpt_print(periph->path, "fatal error, " 1815 "failed to attach to device\n"); 1816 /* 1817 * Invalidate this peripheral. 1818 */ 1819 cam_periph_invalidate(periph); 1820 1821 announce_buf[0] = '\0'; 1822 } else { 1823 1824 /* 1825 * Invalidate this peripheral. 1826 */ 1827 cam_periph_invalidate(periph); 1828 announce_buf[0] = '\0'; 1829 } 1830 xpt_free_ccb(&cgd->ccb_h); 1831 } 1832 } 1833 kfree(rdcap, M_SCSICD); 1834 if (announce_buf[0] != '\0') { 1835 xpt_announce_periph(periph, announce_buf); 1836 if (softc->flags & CD_FLAG_CHANGER) 1837 cdchangerschedule(softc); 1838 /* 1839 * Create our sysctl variables, now that we know 1840 * we have successfully attached. 1841 */ 1842 taskqueue_enqueue(taskqueue_thread[mycpuid], 1843 &softc->sysctl_task); 1844 } 1845 softc->state = CD_STATE_NORMAL; 1846 /* 1847 * Since our peripheral may be invalidated by an error 1848 * above or an external event, we must release our CCB 1849 * before releasing the probe lock on the peripheral. 1850 * The peripheral will only go away once the last lock 1851 * is removed, and we need it around for the CCB release 1852 * operation. 1853 */ 1854 xpt_release_ccb(done_ccb); 1855 cam_periph_unhold(periph, 0); 1856 if (doinfo) { 1857 disk_setdiskinfo(&softc->disk, &info); 1858 } 1859 return; 1860 } 1861 case CD_CCB_WAITING: 1862 { 1863 /* Caller will release the CCB */ 1864 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1865 ("trying to wakeup ccbwait\n")); 1866 1867 wakeup(&done_ccb->ccb_h.cbfcnp); 1868 return; 1869 } 1870 case CD_CCB_POLLED: 1871 /* Caller releases CCB */ 1872 wakeup(&done_ccb->ccb_h.cbfcnp); 1873 return; 1874 default: 1875 break; 1876 } 1877 xpt_release_ccb(done_ccb); 1878 } 1879 1880 static union cd_pages * 1881 cdgetpage(struct cd_mode_params *mode_params) 1882 { 1883 union cd_pages *page; 1884 1885 if (mode_params->cdb_size == 10) 1886 page = (union cd_pages *)find_mode_page_10( 1887 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1888 else 1889 page = (union cd_pages *)find_mode_page_6( 1890 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1891 1892 return (page); 1893 } 1894 1895 static int 1896 cdgetpagesize(int page_num) 1897 { 1898 int i; 1899 1900 for (i = 0; i < NELEM(cd_page_size_table); i++) { 1901 if (cd_page_size_table[i].page == page_num) 1902 return (cd_page_size_table[i].page_size); 1903 } 1904 return (-1); 1905 } 1906 1907 static int 1908 cdioctl(struct dev_ioctl_args *ap) 1909 { 1910 cdev_t dev = ap->a_head.a_dev; 1911 caddr_t addr = ap->a_data; 1912 struct cam_periph *periph; 1913 struct cd_softc *softc; 1914 int unit, error = 0; 1915 1916 unit = dkunit(dev); 1917 1918 periph = cam_extend_get(cdperiphs, unit); 1919 if (periph == NULL) 1920 return(ENXIO); 1921 1922 cam_periph_lock(periph); 1923 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1924 1925 softc = (struct cd_softc *)periph->softc; 1926 1927 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1928 ("trying to do ioctl %#lx\n", ap->a_cmd)); 1929 1930 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 1931 cam_periph_unlock(periph); 1932 cam_periph_release(periph); 1933 return (error); 1934 } 1935 1936 /* 1937 * If we don't have media loaded, check for it. If still don't 1938 * have media loaded, we can only do a load or eject. 1939 * 1940 * We only care whether media is loaded if this is a cd-specific ioctl 1941 * (thus the IOCGROUP check below). Note that this will break if 1942 * anyone adds any ioctls into the switch statement below that don't 1943 * have their ioctl group set to 'c'. 1944 */ 1945 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1946 && ((ap->a_cmd != CDIOCCLOSE) 1947 && (ap->a_cmd != CDIOCEJECT)) 1948 && (IOCGROUP(ap->a_cmd) == 'c')) { 1949 error = cdcheckmedia(periph); 1950 if (error != 0) { 1951 cam_periph_unhold(periph, 1); 1952 return (error); 1953 } 1954 } 1955 /* 1956 * Drop the lock here so later mallocs can use WAITOK. The periph 1957 * is essentially locked still with the cam_periph_hold call above. 1958 */ 1959 cam_periph_unlock(periph); 1960 1961 switch (ap->a_cmd) { 1962 1963 case CDIOCPLAYTRACKS: 1964 { 1965 struct ioc_play_track *args 1966 = (struct ioc_play_track *)addr; 1967 struct cd_mode_params params; 1968 union cd_pages *page; 1969 1970 params.alloc_len = sizeof(union cd_mode_data_6_10); 1971 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 1972 M_WAITOK | M_ZERO); 1973 1974 cam_periph_lock(periph); 1975 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1976 ("trying to do CDIOCPLAYTRACKS\n")); 1977 1978 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 1979 if (error) { 1980 kfree(params.mode_buf, M_SCSICD); 1981 cam_periph_unlock(periph); 1982 break; 1983 } 1984 page = cdgetpage(¶ms); 1985 1986 page->audio.flags &= ~CD_PA_SOTC; 1987 page->audio.flags |= CD_PA_IMMED; 1988 error = cdsetmode(periph, ¶ms); 1989 kfree(params.mode_buf, M_SCSICD); 1990 if (error) { 1991 cam_periph_unlock(periph); 1992 break; 1993 } 1994 1995 /* 1996 * This was originally implemented with the PLAY 1997 * AUDIO TRACK INDEX command, but that command was 1998 * deprecated after SCSI-2. Most (all?) SCSI CDROM 1999 * drives support it but ATAPI and ATAPI-derivative 2000 * drives don't seem to support it. So we keep a 2001 * cache of the table of contents and translate 2002 * track numbers to MSF format. 2003 */ 2004 if (softc->flags & CD_FLAG_VALID_TOC) { 2005 union msf_lba *sentry, *eentry; 2006 int st, et; 2007 2008 if (args->end_track < 2009 softc->toc.header.ending_track + 1) 2010 args->end_track++; 2011 if (args->end_track > 2012 softc->toc.header.ending_track + 1) 2013 args->end_track = 2014 softc->toc.header.ending_track + 1; 2015 st = args->start_track - 2016 softc->toc.header.starting_track; 2017 et = args->end_track - 2018 softc->toc.header.starting_track; 2019 if ((st < 0) 2020 || (et < 0) 2021 || (st > (softc->toc.header.ending_track - 2022 softc->toc.header.starting_track))) { 2023 error = EINVAL; 2024 break; 2025 } 2026 sentry = &softc->toc.entries[st].addr; 2027 eentry = &softc->toc.entries[et].addr; 2028 error = cdplaymsf(periph, 2029 sentry->msf.minute, 2030 sentry->msf.second, 2031 sentry->msf.frame, 2032 eentry->msf.minute, 2033 eentry->msf.second, 2034 eentry->msf.frame); 2035 } else { 2036 /* 2037 * If we don't have a valid TOC, try the 2038 * play track index command. It is part of 2039 * the SCSI-2 spec, but was removed in the 2040 * MMC specs. ATAPI and ATAPI-derived 2041 * drives don't support it. 2042 */ 2043 if (softc->quirks & CD_Q_BCD_TRACKS) { 2044 args->start_track = 2045 bin2bcd(args->start_track); 2046 args->end_track = 2047 bin2bcd(args->end_track); 2048 } 2049 error = cdplaytracks(periph, 2050 args->start_track, 2051 args->start_index, 2052 args->end_track, 2053 args->end_index); 2054 } 2055 cam_periph_unlock(periph); 2056 } 2057 break; 2058 case CDIOCPLAYMSF: 2059 { 2060 struct ioc_play_msf *args 2061 = (struct ioc_play_msf *) addr; 2062 struct cd_mode_params params; 2063 union cd_pages *page; 2064 2065 params.alloc_len = sizeof(union cd_mode_data_6_10); 2066 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2067 M_WAITOK | M_ZERO); 2068 2069 cam_periph_lock(periph); 2070 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2071 ("trying to do CDIOCPLAYMSF\n")); 2072 2073 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2074 if (error) { 2075 kfree(params.mode_buf, M_SCSICD); 2076 cam_periph_unlock(periph); 2077 break; 2078 } 2079 page = cdgetpage(¶ms); 2080 2081 page->audio.flags &= ~CD_PA_SOTC; 2082 page->audio.flags |= CD_PA_IMMED; 2083 error = cdsetmode(periph, ¶ms); 2084 kfree(params.mode_buf, M_SCSICD); 2085 if (error) { 2086 cam_periph_unlock(periph); 2087 break; 2088 } 2089 error = cdplaymsf(periph, 2090 args->start_m, 2091 args->start_s, 2092 args->start_f, 2093 args->end_m, 2094 args->end_s, 2095 args->end_f); 2096 cam_periph_unlock(periph); 2097 } 2098 break; 2099 case CDIOCPLAYBLOCKS: 2100 { 2101 struct ioc_play_blocks *args 2102 = (struct ioc_play_blocks *) addr; 2103 struct cd_mode_params params; 2104 union cd_pages *page; 2105 2106 params.alloc_len = sizeof(union cd_mode_data_6_10); 2107 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2108 M_WAITOK | M_ZERO); 2109 cam_periph_lock(periph); 2110 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2111 ("trying to do CDIOCPLAYBLOCKS\n")); 2112 2113 2114 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2115 if (error) { 2116 kfree(params.mode_buf, M_SCSICD); 2117 cam_periph_unlock(periph); 2118 break; 2119 } 2120 page = cdgetpage(¶ms); 2121 2122 page->audio.flags &= ~CD_PA_SOTC; 2123 page->audio.flags |= CD_PA_IMMED; 2124 error = cdsetmode(periph, ¶ms); 2125 kfree(params.mode_buf, M_SCSICD); 2126 if (error) { 2127 cam_periph_unlock(periph); 2128 break; 2129 } 2130 error = cdplay(periph, args->blk, args->len); 2131 cam_periph_unlock(periph); 2132 } 2133 break; 2134 case CDIOCREADSUBCHANNEL: 2135 { 2136 struct ioc_read_subchannel *args 2137 = (struct ioc_read_subchannel *) addr; 2138 struct cd_sub_channel_info *data; 2139 u_int32_t len = args->data_len; 2140 2141 data = kmalloc(sizeof(struct cd_sub_channel_info), 2142 M_SCSICD, M_WAITOK); 2143 2144 cam_periph_lock(periph); 2145 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2146 ("trying to do CDIOCREADSUBCHANNEL\n")); 2147 2148 if ((len > sizeof(struct cd_sub_channel_info)) || 2149 (len < sizeof(struct cd_sub_channel_header))) { 2150 kprintf( 2151 "scsi_cd: cdioctl: " 2152 "cdioreadsubchannel: error, len=%d\n", 2153 len); 2154 error = EINVAL; 2155 kfree(data, M_SCSICD); 2156 cam_periph_unlock(periph); 2157 break; 2158 } 2159 2160 if (softc->quirks & CD_Q_BCD_TRACKS) 2161 args->track = bin2bcd(args->track); 2162 2163 error = cdreadsubchannel(periph, args->address_format, 2164 args->data_format, args->track, data, len); 2165 2166 if (error) { 2167 kfree(data, M_SCSICD); 2168 cam_periph_unlock(periph); 2169 break; 2170 } 2171 if (softc->quirks & CD_Q_BCD_TRACKS) 2172 data->what.track_info.track_number = 2173 bcd2bin(data->what.track_info.track_number); 2174 len = min(len, ((data->header.data_len[0] << 8) + 2175 data->header.data_len[1] + 2176 sizeof(struct cd_sub_channel_header))); 2177 cam_periph_unlock(periph); 2178 if (copyout(data, args->data, len) != 0) { 2179 error = EFAULT; 2180 } 2181 kfree(data, M_SCSICD); 2182 } 2183 break; 2184 2185 case CDIOREADTOCHEADER: 2186 { 2187 struct ioc_toc_header *th; 2188 2189 th = kmalloc(sizeof(struct ioc_toc_header), M_SCSICD, 2190 M_WAITOK); 2191 2192 cam_periph_lock(periph); 2193 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2194 ("trying to do CDIOREADTOCHEADER\n")); 2195 2196 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2197 sizeof (*th), /*sense_flags*/0); 2198 if (error) { 2199 kfree(th, M_SCSICD); 2200 cam_periph_unlock(periph); 2201 break; 2202 } 2203 if (softc->quirks & CD_Q_BCD_TRACKS) { 2204 /* we are going to have to convert the BCD 2205 * encoding on the cd to what is expected 2206 */ 2207 th->starting_track = 2208 bcd2bin(th->starting_track); 2209 th->ending_track = bcd2bin(th->ending_track); 2210 } 2211 th->len = ntohs(th->len); 2212 bcopy(th, addr, sizeof(*th)); 2213 kfree(th, M_SCSICD); 2214 cam_periph_unlock(periph); 2215 } 2216 break; 2217 case CDIOREADTOCENTRYS: 2218 { 2219 struct cd_tocdata *data; 2220 struct cd_toc_single *lead; 2221 struct ioc_read_toc_entry *te = 2222 (struct ioc_read_toc_entry *) addr; 2223 struct ioc_toc_header *th; 2224 u_int32_t len, readlen, idx, num; 2225 u_int32_t starting_track = te->starting_track; 2226 2227 data = kmalloc(sizeof(*data), M_SCSICD, M_WAITOK); 2228 lead = kmalloc(sizeof(*lead), M_SCSICD, M_WAITOK); 2229 2230 cam_periph_lock(periph); 2231 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2232 ("trying to do CDIOREADTOCENTRYS\n")); 2233 2234 if (te->data_len < sizeof(struct cd_toc_entry) 2235 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2236 || (te->address_format != CD_MSF_FORMAT 2237 && te->address_format != CD_LBA_FORMAT)) { 2238 error = EINVAL; 2239 kprintf("scsi_cd: error in readtocentries, " 2240 "returning EINVAL\n"); 2241 kfree(data, M_SCSICD); 2242 kfree(lead, M_SCSICD); 2243 cam_periph_unlock(periph); 2244 break; 2245 } 2246 2247 th = &data->header; 2248 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2249 sizeof (*th), /*sense_flags*/0); 2250 if (error) { 2251 kfree(data, M_SCSICD); 2252 kfree(lead, M_SCSICD); 2253 cam_periph_unlock(periph); 2254 break; 2255 } 2256 2257 if (softc->quirks & CD_Q_BCD_TRACKS) { 2258 /* we are going to have to convert the BCD 2259 * encoding on the cd to what is expected 2260 */ 2261 th->starting_track = 2262 bcd2bin(th->starting_track); 2263 th->ending_track = bcd2bin(th->ending_track); 2264 } 2265 2266 if (starting_track == 0) 2267 starting_track = th->starting_track; 2268 else if (starting_track == LEADOUT) 2269 starting_track = th->ending_track + 1; 2270 else if (starting_track < th->starting_track || 2271 starting_track > th->ending_track + 1) { 2272 kprintf("scsi_cd: error in readtocentries, " 2273 "returning EINVAL\n"); 2274 kfree(data, M_SCSICD); 2275 kfree(lead, M_SCSICD); 2276 cam_periph_unlock(periph); 2277 error = EINVAL; 2278 break; 2279 } 2280 2281 /* calculate reading length without leadout entry */ 2282 readlen = (th->ending_track - starting_track + 1) * 2283 sizeof(struct cd_toc_entry); 2284 2285 /* and with leadout entry */ 2286 len = readlen + sizeof(struct cd_toc_entry); 2287 if (te->data_len < len) { 2288 len = te->data_len; 2289 if (readlen > len) 2290 readlen = len; 2291 } 2292 if (len > sizeof(data->entries)) { 2293 kprintf("scsi_cd: error in readtocentries, " 2294 "returning EINVAL\n"); 2295 error = EINVAL; 2296 kfree(data, M_SCSICD); 2297 kfree(lead, M_SCSICD); 2298 cam_periph_unlock(periph); 2299 break; 2300 } 2301 num = len / sizeof(struct cd_toc_entry); 2302 2303 if (readlen > 0) { 2304 error = cdreadtoc(periph, te->address_format, 2305 starting_track, 2306 (u_int8_t *)data, 2307 readlen + sizeof (*th), 2308 /*sense_flags*/0); 2309 if (error) { 2310 kfree(data, M_SCSICD); 2311 kfree(lead, M_SCSICD); 2312 cam_periph_unlock(periph); 2313 break; 2314 } 2315 } 2316 2317 /* make leadout entry if needed */ 2318 idx = starting_track + num - 1; 2319 if (softc->quirks & CD_Q_BCD_TRACKS) 2320 th->ending_track = bcd2bin(th->ending_track); 2321 if (idx == th->ending_track + 1) { 2322 error = cdreadtoc(periph, te->address_format, 2323 LEADOUT, (u_int8_t *)lead, 2324 sizeof(*lead), 2325 /*sense_flags*/0); 2326 if (error) { 2327 kfree(data, M_SCSICD); 2328 kfree(lead, M_SCSICD); 2329 cam_periph_unlock(periph); 2330 break; 2331 } 2332 data->entries[idx - starting_track] = 2333 lead->entry; 2334 } 2335 if (softc->quirks & CD_Q_BCD_TRACKS) { 2336 for (idx = 0; idx < num - 1; idx++) { 2337 data->entries[idx].track = 2338 bcd2bin(data->entries[idx].track); 2339 } 2340 } 2341 2342 cam_periph_unlock(periph); 2343 error = copyout(data->entries, te->data, len); 2344 kfree(data, M_SCSICD); 2345 kfree(lead, M_SCSICD); 2346 } 2347 break; 2348 case CDIOREADTOCENTRY: 2349 { 2350 struct cd_toc_single *data; 2351 struct ioc_read_toc_single_entry *te = 2352 (struct ioc_read_toc_single_entry *) addr; 2353 struct ioc_toc_header *th; 2354 u_int32_t track; 2355 2356 data = kmalloc(sizeof(*data), M_SCSICD, M_WAITOK); 2357 2358 cam_periph_lock(periph); 2359 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2360 ("trying to do CDIOREADTOCENTRY\n")); 2361 2362 if (te->address_format != CD_MSF_FORMAT 2363 && te->address_format != CD_LBA_FORMAT) { 2364 kprintf("error in readtocentry, " 2365 " returning EINVAL\n"); 2366 kfree(data, M_SCSICD); 2367 error = EINVAL; 2368 cam_periph_unlock(periph); 2369 break; 2370 } 2371 2372 th = &data->header; 2373 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2374 sizeof (*th), /*sense_flags*/0); 2375 if (error) { 2376 kfree(data, M_SCSICD); 2377 cam_periph_unlock(periph); 2378 break; 2379 } 2380 2381 if (softc->quirks & CD_Q_BCD_TRACKS) { 2382 /* we are going to have to convert the BCD 2383 * encoding on the cd to what is expected 2384 */ 2385 th->starting_track = 2386 bcd2bin(th->starting_track); 2387 th->ending_track = bcd2bin(th->ending_track); 2388 } 2389 track = te->track; 2390 if (track == 0) 2391 track = th->starting_track; 2392 else if (track == LEADOUT) 2393 /* OK */; 2394 else if (track < th->starting_track || 2395 track > th->ending_track + 1) { 2396 kprintf("error in readtocentry, " 2397 " returning EINVAL\n"); 2398 kfree(data, M_SCSICD); 2399 error = EINVAL; 2400 cam_periph_unlock(periph); 2401 break; 2402 } 2403 2404 error = cdreadtoc(periph, te->address_format, track, 2405 (u_int8_t *)data, sizeof(*data), 2406 /*sense_flags*/0); 2407 if (error) { 2408 kfree(data, M_SCSICD); 2409 cam_periph_unlock(periph); 2410 break; 2411 } 2412 2413 if (softc->quirks & CD_Q_BCD_TRACKS) 2414 data->entry.track = bcd2bin(data->entry.track); 2415 bcopy(&data->entry, &te->entry, 2416 sizeof(struct cd_toc_entry)); 2417 kfree(data, M_SCSICD); 2418 cam_periph_unlock(periph); 2419 } 2420 break; 2421 case CDIOCSETPATCH: 2422 { 2423 struct ioc_patch *arg = (struct ioc_patch *)addr; 2424 struct cd_mode_params params; 2425 union cd_pages *page; 2426 2427 params.alloc_len = sizeof(union cd_mode_data_6_10); 2428 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2429 M_WAITOK | M_ZERO); 2430 2431 cam_periph_lock(periph); 2432 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2433 ("trying to do CDIOCSETPATCH\n")); 2434 2435 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2436 if (error) { 2437 kfree(params.mode_buf, M_SCSICD); 2438 cam_periph_unlock(periph); 2439 break; 2440 } 2441 page = cdgetpage(¶ms); 2442 2443 page->audio.port[LEFT_PORT].channels = 2444 arg->patch[0]; 2445 page->audio.port[RIGHT_PORT].channels = 2446 arg->patch[1]; 2447 page->audio.port[2].channels = arg->patch[2]; 2448 page->audio.port[3].channels = arg->patch[3]; 2449 error = cdsetmode(periph, ¶ms); 2450 kfree(params.mode_buf, M_SCSICD); 2451 cam_periph_unlock(periph); 2452 } 2453 break; 2454 case CDIOCGETVOL: 2455 { 2456 struct ioc_vol *arg = (struct ioc_vol *) addr; 2457 struct cd_mode_params params; 2458 union cd_pages *page; 2459 2460 params.alloc_len = sizeof(union cd_mode_data_6_10); 2461 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2462 M_WAITOK | M_ZERO); 2463 2464 cam_periph_lock(periph); 2465 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2466 ("trying to do CDIOCGETVOL\n")); 2467 2468 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2469 if (error) { 2470 kfree(params.mode_buf, M_SCSICD); 2471 cam_periph_unlock(periph); 2472 break; 2473 } 2474 page = cdgetpage(¶ms); 2475 2476 arg->vol[LEFT_PORT] = 2477 page->audio.port[LEFT_PORT].volume; 2478 arg->vol[RIGHT_PORT] = 2479 page->audio.port[RIGHT_PORT].volume; 2480 arg->vol[2] = page->audio.port[2].volume; 2481 arg->vol[3] = page->audio.port[3].volume; 2482 kfree(params.mode_buf, M_SCSICD); 2483 cam_periph_unlock(periph); 2484 } 2485 break; 2486 case CDIOCSETVOL: 2487 { 2488 struct ioc_vol *arg = (struct ioc_vol *) addr; 2489 struct cd_mode_params params; 2490 union cd_pages *page; 2491 2492 params.alloc_len = sizeof(union cd_mode_data_6_10); 2493 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2494 M_WAITOK | M_ZERO); 2495 2496 cam_periph_lock(periph); 2497 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2498 ("trying to do CDIOCSETVOL\n")); 2499 2500 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2501 if (error) { 2502 kfree(params.mode_buf, M_SCSICD); 2503 cam_periph_unlock(periph); 2504 break; 2505 } 2506 page = cdgetpage(¶ms); 2507 2508 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2509 page->audio.port[LEFT_PORT].volume = 2510 arg->vol[LEFT_PORT]; 2511 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2512 page->audio.port[RIGHT_PORT].volume = 2513 arg->vol[RIGHT_PORT]; 2514 page->audio.port[2].volume = arg->vol[2]; 2515 page->audio.port[3].volume = arg->vol[3]; 2516 error = cdsetmode(periph, ¶ms); 2517 cam_periph_unlock(periph); 2518 kfree(params.mode_buf, M_SCSICD); 2519 } 2520 break; 2521 case CDIOCSETMONO: 2522 { 2523 struct cd_mode_params params; 2524 union cd_pages *page; 2525 2526 params.alloc_len = sizeof(union cd_mode_data_6_10); 2527 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2528 M_WAITOK | M_ZERO); 2529 2530 cam_periph_lock(periph); 2531 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2532 ("trying to do CDIOCSETMONO\n")); 2533 2534 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2535 if (error) { 2536 kfree(params.mode_buf, M_SCSICD); 2537 cam_periph_unlock(periph); 2538 break; 2539 } 2540 page = cdgetpage(¶ms); 2541 2542 page->audio.port[LEFT_PORT].channels = 2543 LEFT_CHANNEL | RIGHT_CHANNEL; 2544 page->audio.port[RIGHT_PORT].channels = 2545 LEFT_CHANNEL | RIGHT_CHANNEL; 2546 page->audio.port[2].channels = 0; 2547 page->audio.port[3].channels = 0; 2548 error = cdsetmode(periph, ¶ms); 2549 cam_periph_unlock(periph); 2550 kfree(params.mode_buf, M_SCSICD); 2551 } 2552 break; 2553 case CDIOCSETSTEREO: 2554 { 2555 struct cd_mode_params params; 2556 union cd_pages *page; 2557 2558 params.alloc_len = sizeof(union cd_mode_data_6_10); 2559 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2560 M_WAITOK | M_ZERO); 2561 2562 cam_periph_lock(periph); 2563 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2564 ("trying to do CDIOCSETSTEREO\n")); 2565 2566 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2567 if (error) { 2568 kfree(params.mode_buf, M_SCSICD); 2569 cam_periph_unlock(periph); 2570 break; 2571 } 2572 page = cdgetpage(¶ms); 2573 2574 page->audio.port[LEFT_PORT].channels = 2575 LEFT_CHANNEL; 2576 page->audio.port[RIGHT_PORT].channels = 2577 RIGHT_CHANNEL; 2578 page->audio.port[2].channels = 0; 2579 page->audio.port[3].channels = 0; 2580 error = cdsetmode(periph, ¶ms); 2581 kfree(params.mode_buf, M_SCSICD); 2582 cam_periph_unlock(periph); 2583 } 2584 break; 2585 case CDIOCSETMUTE: 2586 { 2587 struct cd_mode_params params; 2588 union cd_pages *page; 2589 2590 params.alloc_len = sizeof(union cd_mode_data_6_10); 2591 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2592 M_WAITOK | M_ZERO); 2593 2594 cam_periph_lock(periph); 2595 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2596 ("trying to do CDIOCSETMUTE\n")); 2597 2598 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2599 if (error) { 2600 kfree(¶ms, M_SCSICD); 2601 cam_periph_unlock(periph); 2602 break; 2603 } 2604 page = cdgetpage(¶ms); 2605 2606 page->audio.port[LEFT_PORT].channels = 0; 2607 page->audio.port[RIGHT_PORT].channels = 0; 2608 page->audio.port[2].channels = 0; 2609 page->audio.port[3].channels = 0; 2610 error = cdsetmode(periph, ¶ms); 2611 kfree(params.mode_buf, M_SCSICD); 2612 cam_periph_unlock(periph); 2613 } 2614 break; 2615 case CDIOCSETLEFT: 2616 { 2617 struct cd_mode_params params; 2618 union cd_pages *page; 2619 2620 params.alloc_len = sizeof(union cd_mode_data_6_10); 2621 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2622 M_WAITOK | M_ZERO); 2623 2624 cam_periph_lock(periph); 2625 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2626 ("trying to do CDIOCSETLEFT\n")); 2627 2628 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2629 if (error) { 2630 kfree(params.mode_buf, M_SCSICD); 2631 cam_periph_unlock(periph); 2632 break; 2633 } 2634 page = cdgetpage(¶ms); 2635 2636 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2637 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2638 page->audio.port[2].channels = 0; 2639 page->audio.port[3].channels = 0; 2640 error = cdsetmode(periph, ¶ms); 2641 kfree(params.mode_buf, M_SCSICD); 2642 cam_periph_unlock(periph); 2643 } 2644 break; 2645 case CDIOCSETRIGHT: 2646 { 2647 struct cd_mode_params params; 2648 union cd_pages *page; 2649 2650 params.alloc_len = sizeof(union cd_mode_data_6_10); 2651 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2652 M_WAITOK | M_ZERO); 2653 2654 cam_periph_lock(periph); 2655 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2656 ("trying to do CDIOCSETRIGHT\n")); 2657 2658 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2659 if (error) { 2660 kfree(params.mode_buf, M_SCSICD); 2661 cam_periph_unlock(periph); 2662 break; 2663 } 2664 page = cdgetpage(¶ms); 2665 2666 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2667 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2668 page->audio.port[2].channels = 0; 2669 page->audio.port[3].channels = 0; 2670 error = cdsetmode(periph, ¶ms); 2671 kfree(params.mode_buf, M_SCSICD); 2672 cam_periph_unlock(periph); 2673 } 2674 break; 2675 case CDIOCRESUME: 2676 cam_periph_lock(periph); 2677 error = cdpause(periph, 1); 2678 cam_periph_unlock(periph); 2679 break; 2680 case CDIOCPAUSE: 2681 cam_periph_lock(periph); 2682 error = cdpause(periph, 0); 2683 cam_periph_unlock(periph); 2684 break; 2685 case CDIOCSTART: 2686 cam_periph_lock(periph); 2687 error = cdstartunit(periph, 0); 2688 cam_periph_unlock(periph); 2689 break; 2690 case CDIOCCLOSE: 2691 cam_periph_lock(periph); 2692 error = cdstartunit(periph, 1); 2693 cam_periph_unlock(periph); 2694 break; 2695 case CDIOCSTOP: 2696 cam_periph_lock(periph); 2697 error = cdstopunit(periph, 0); 2698 cam_periph_unlock(periph); 2699 break; 2700 case CDIOCEJECT: 2701 cam_periph_lock(periph); 2702 error = cdstopunit(periph, 1); 2703 cam_periph_unlock(periph); 2704 break; 2705 case CDIOCALLOW: 2706 cam_periph_lock(periph); 2707 cdprevent(periph, PR_ALLOW); 2708 cam_periph_unlock(periph); 2709 break; 2710 case CDIOCPREVENT: 2711 cam_periph_lock(periph); 2712 cdprevent(periph, PR_PREVENT); 2713 cam_periph_unlock(periph); 2714 break; 2715 case CDIOCSETDEBUG: 2716 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2717 error = ENOTTY; 2718 break; 2719 case CDIOCCLRDEBUG: 2720 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2721 error = ENOTTY; 2722 break; 2723 case CDIOCRESET: 2724 /* return (cd_reset(periph)); */ 2725 error = ENOTTY; 2726 break; 2727 case CDRIOCREADSPEED: 2728 cam_periph_lock(periph); 2729 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2730 cam_periph_unlock(periph); 2731 break; 2732 case CDRIOCWRITESPEED: 2733 cam_periph_lock(periph); 2734 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2735 cam_periph_unlock(periph); 2736 break; 2737 case DVDIOCSENDKEY: 2738 case DVDIOCREPORTKEY: { 2739 struct dvd_authinfo *authinfo; 2740 2741 authinfo = (struct dvd_authinfo *)addr; 2742 2743 cam_periph_lock(periph); 2744 if (ap->a_cmd == DVDIOCREPORTKEY) 2745 error = cdreportkey(periph, authinfo); 2746 else 2747 error = cdsendkey(periph, authinfo); 2748 cam_periph_unlock(periph); 2749 break; 2750 } 2751 case DVDIOCREADSTRUCTURE: { 2752 struct dvd_struct *dvdstruct; 2753 2754 dvdstruct = (struct dvd_struct *)addr; 2755 2756 cam_periph_lock(periph); 2757 error = cdreaddvdstructure(periph, dvdstruct); 2758 cam_periph_unlock(periph); 2759 2760 break; 2761 } 2762 default: 2763 cam_periph_lock(periph); 2764 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cderror); 2765 cam_periph_unlock(periph); 2766 break; 2767 } 2768 2769 cam_periph_lock(periph); 2770 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2771 cam_periph_unhold(periph, 1); 2772 2773 return (error); 2774 } 2775 2776 static void 2777 cdprevent(struct cam_periph *periph, int action) 2778 { 2779 union ccb *ccb; 2780 struct cd_softc *softc; 2781 int error; 2782 2783 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2784 2785 softc = (struct cd_softc *)periph->softc; 2786 2787 if (((action == PR_ALLOW) 2788 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2789 || ((action == PR_PREVENT) 2790 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2791 return; 2792 } 2793 2794 ccb = cdgetccb(periph, /* priority */ 1); 2795 2796 scsi_prevent(&ccb->csio, 2797 /*retries*/ 1, 2798 cddone, 2799 MSG_SIMPLE_Q_TAG, 2800 action, 2801 SSD_FULL_SIZE, 2802 /* timeout */60000); 2803 2804 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2805 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2806 2807 xpt_release_ccb(ccb); 2808 2809 if (error == 0) { 2810 if (action == PR_ALLOW) 2811 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2812 else 2813 softc->flags |= CD_FLAG_DISC_LOCKED; 2814 } 2815 } 2816 2817 static int 2818 cdcheckmedia(struct cam_periph *periph) 2819 { 2820 struct cd_softc *softc; 2821 struct ioc_toc_header *toch; 2822 struct cd_toc_single leadout; 2823 struct ccb_getdev *cgd; 2824 u_int32_t size, toclen; 2825 int error, num_entries, cdindex; 2826 int first_track_audio; 2827 struct disk_info info; 2828 2829 softc = (struct cd_softc *)periph->softc; 2830 2831 first_track_audio = -1; 2832 error = 0; 2833 2834 /* 2835 * Set up disk info fields and tell the disk subsystem to reset 2836 * its internal copy of the label. 2837 */ 2838 bzero(&info, sizeof(info)); 2839 info.d_type = DTYPE_SCSI; 2840 info.d_dsflags &= ~DSO_COMPATLABEL; 2841 info.d_dsflags |= DSO_NOLABELS | DSO_COMPATPARTA; 2842 info.d_serialno = xpt_path_serialno(periph->path); 2843 2844 /* 2845 * Grab the inquiry data to get the vendor and product names. 2846 * Put them in the typename and packname for the label. 2847 */ 2848 cgd = &xpt_alloc_ccb()->cgd; 2849 xpt_setup_ccb(&cgd->ccb_h, periph->path, /*priority*/ 1); 2850 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 2851 xpt_action((union ccb *)cgd); 2852 2853 #if 0 2854 strncpy(label->d_typename, cgd->inq_data.vendor, 2855 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 2856 strncpy(label->d_packname, cgd->inq_data.product, 2857 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 2858 #endif 2859 xpt_free_ccb(&cgd->ccb_h); 2860 2861 /* 2862 * Clear the valid media and TOC flags until we've verified that we 2863 * have both. 2864 */ 2865 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2866 2867 /* 2868 * Get the disc size and block size. If we can't get it, we don't 2869 * have media, most likely. 2870 */ 2871 if ((error = cdsize(periph, &size)) != 0) { 2872 /* 2873 * Set a bogus sector size, so the slice code won't try to 2874 * divide by 0 and panic the kernel. 2875 */ 2876 info.d_media_blksize = 2048; 2877 disk_setdiskinfo(&softc->disk, &info); 2878 2879 /* 2880 * Tell devstat(9) we don't have a blocksize. 2881 */ 2882 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 2883 2884 return (error); 2885 } else { 2886 info.d_media_blksize = softc->params.blksize; 2887 info.d_media_blocks = softc->params.disksize; 2888 disk_setdiskinfo(&softc->disk, &info); 2889 2890 /* 2891 * We unconditionally (re)set the blocksize each time the 2892 * CD device is opened. This is because the CD can change, 2893 * and therefore the blocksize might change. 2894 * XXX problems here if some slice or partition is still 2895 * open with the old size? 2896 */ 2897 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 2898 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 2899 softc->device_stats.block_size = softc->params.blksize; 2900 2901 softc->flags |= CD_FLAG_VALID_MEDIA; 2902 } 2903 2904 /* 2905 * Now we check the table of contents. This (currently) is only 2906 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2907 * things like present a separate entry in /dev for each track, 2908 * like that acd(4) driver does. 2909 */ 2910 bzero(&softc->toc, sizeof(softc->toc)); 2911 toch = &softc->toc.header; 2912 2913 /* 2914 * We will get errors here for media that doesn't have a table of 2915 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2916 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2917 * has not been recorded (no complete session) and the Format codes 2918 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2919 * with an INVALID FIELD IN CDB. Devices that are not capable of 2920 * reading an incomplete session on DDC/CD-R/RW media shall report 2921 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2922 * 2923 * So this isn't fatal if we can't read the table of contents, it 2924 * just means that the user won't be able to issue the play tracks 2925 * ioctl, and likely lots of other stuff won't work either. They 2926 * need to burn the CD before we can do a whole lot with it. So 2927 * we don't print anything here if we get an error back. 2928 */ 2929 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2930 SF_NO_PRINT); 2931 /* 2932 * Errors in reading the table of contents aren't fatal, we just 2933 * won't have a valid table of contents cached. 2934 */ 2935 if (error != 0) { 2936 error = 0; 2937 bzero(&softc->toc, sizeof(softc->toc)); 2938 goto bailout; 2939 } 2940 2941 if (softc->quirks & CD_Q_BCD_TRACKS) { 2942 toch->starting_track = bcd2bin(toch->starting_track); 2943 toch->ending_track = bcd2bin(toch->ending_track); 2944 } 2945 2946 /* Number of TOC entries, plus leadout */ 2947 num_entries = (toch->ending_track - toch->starting_track) + 2; 2948 2949 if (num_entries <= 0) 2950 goto bailout; 2951 2952 toclen = num_entries * sizeof(struct cd_toc_entry); 2953 2954 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2955 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2956 SF_NO_PRINT); 2957 if (error != 0) { 2958 error = 0; 2959 bzero(&softc->toc, sizeof(softc->toc)); 2960 goto bailout; 2961 } 2962 2963 if (softc->quirks & CD_Q_BCD_TRACKS) { 2964 toch->starting_track = bcd2bin(toch->starting_track); 2965 toch->ending_track = bcd2bin(toch->ending_track); 2966 } 2967 toch->len = scsi_2btoul((uint8_t *)&toch->len); 2968 2969 /* 2970 * XXX KDM is this necessary? Probably only if the drive doesn't 2971 * return leadout information with the table of contents. 2972 */ 2973 cdindex = toch->starting_track + num_entries -1; 2974 if (cdindex == toch->ending_track + 1) { 2975 2976 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2977 (u_int8_t *)&leadout, sizeof(leadout), 2978 SF_NO_PRINT); 2979 if (error != 0) { 2980 error = 0; 2981 goto bailout; 2982 } 2983 softc->toc.entries[cdindex - toch->starting_track] = 2984 leadout.entry; 2985 } 2986 if (softc->quirks & CD_Q_BCD_TRACKS) { 2987 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) { 2988 softc->toc.entries[cdindex].track = 2989 bcd2bin(softc->toc.entries[cdindex].track); 2990 } 2991 } 2992 2993 /* 2994 * Run through the TOC entries, find the first entry and determine 2995 * whether it is an audio or data track. 2996 */ 2997 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) { 2998 if (softc->toc.entries[cdindex].track == toch->starting_track) { 2999 if (softc->toc.entries[cdindex].control & 0x04) 3000 first_track_audio = 0; 3001 else 3002 first_track_audio = 1; 3003 break; 3004 } 3005 } 3006 3007 /* 3008 * If first_track_audio is non-zero, we either have an error (e.g. 3009 * couldn't find the starting track) or the first track is an audio 3010 * track. If first_track_audio is 0, the first track is a data 3011 * track that could have a disklabel. Attempt to read the 3012 * disklabel off the media, just in case the user put one there. 3013 */ 3014 if (first_track_audio == 0) { 3015 info.d_dsflags |= DSO_COMPATLABEL; 3016 info.d_dsflags &= ~DSO_NOLABELS; 3017 disk_setdiskinfo(&softc->disk, &info); 3018 } 3019 softc->flags |= CD_FLAG_VALID_TOC; 3020 3021 bailout: 3022 return (error); 3023 } 3024 3025 static int 3026 cdsize(struct cam_periph *periph, u_int32_t *size) 3027 { 3028 struct cd_softc *softc; 3029 union ccb *ccb; 3030 struct scsi_read_capacity_data *rcap_buf; 3031 int error; 3032 3033 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3034 3035 softc = (struct cd_softc *)periph->softc; 3036 3037 ccb = cdgetccb(periph, /* priority */ 1); 3038 3039 rcap_buf = kmalloc(sizeof(struct scsi_read_capacity_data), 3040 M_SCSICD, M_INTWAIT | M_ZERO); 3041 3042 scsi_read_capacity(&ccb->csio, 3043 /*retries*/ 1, 3044 cddone, 3045 MSG_SIMPLE_Q_TAG, 3046 rcap_buf, 3047 SSD_FULL_SIZE, 3048 /* timeout */20000); 3049 3050 if (softc->flags & CD_FLAG_CAP_MUTE) 3051 ccb->ccb_h.flags |= CAM_QUIET; 3052 3053 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3054 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3055 3056 xpt_release_ccb(ccb); 3057 3058 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3059 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3060 /* 3061 * SCSI-3 mandates that the reported blocksize shall be 2048. 3062 * Older drives sometimes report funny values, trim it down to 3063 * 2048, or other parts of the kernel will get confused. 3064 * 3065 * XXX we leave drives alone that might report 512 bytes, as 3066 * well as drives reporting more weird sizes like perhaps 4K. 3067 */ 3068 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3069 softc->params.blksize = 2048; 3070 3071 kfree(rcap_buf, M_SCSICD); 3072 *size = softc->params.disksize; 3073 3074 return (error); 3075 3076 } 3077 3078 static int 3079 cd6byteworkaround(union ccb *ccb) 3080 { 3081 u_int8_t *cdb; 3082 struct cam_periph *periph; 3083 struct cd_softc *softc; 3084 struct cd_mode_params *params; 3085 int frozen, found; 3086 3087 periph = xpt_path_periph(ccb->ccb_h.path); 3088 softc = (struct cd_softc *)periph->softc; 3089 3090 cdb = ccb->csio.cdb_io.cdb_bytes; 3091 3092 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3093 || ((cdb[0] != MODE_SENSE_6) 3094 && (cdb[0] != MODE_SELECT_6))) 3095 return (0); 3096 3097 /* 3098 * Because there is no convenient place to stash the overall 3099 * cd_mode_params structure pointer, we have to grab it like this. 3100 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3101 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3102 * 3103 * XXX It would be nice if, at some point, we could increase the 3104 * number of available peripheral private pointers. Both pointers 3105 * are currently used in most every peripheral driver. 3106 */ 3107 found = 0; 3108 3109 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3110 if (params->mode_buf == ccb->csio.data_ptr) { 3111 found = 1; 3112 break; 3113 } 3114 } 3115 3116 /* 3117 * This shouldn't happen. All mode sense and mode select 3118 * operations in the cd(4) driver MUST go through cdgetmode() and 3119 * cdsetmode()! 3120 */ 3121 if (found == 0) { 3122 xpt_print(periph->path, 3123 "mode buffer not found in mode queue!\n"); 3124 return (0); 3125 } 3126 3127 params->cdb_size = 10; 3128 softc->minimum_command_size = 10; 3129 xpt_print(ccb->ccb_h.path, 3130 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3131 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3132 3133 if (cdb[0] == MODE_SENSE_6) { 3134 struct scsi_mode_sense_10 ms10; 3135 struct scsi_mode_sense_6 *ms6; 3136 int len; 3137 3138 ms6 = (struct scsi_mode_sense_6 *)cdb; 3139 3140 bzero(&ms10, sizeof(ms10)); 3141 ms10.opcode = MODE_SENSE_10; 3142 ms10.byte2 = ms6->byte2; 3143 ms10.page = ms6->page; 3144 3145 /* 3146 * 10 byte mode header, block descriptor, 3147 * sizeof(union cd_pages) 3148 */ 3149 len = sizeof(struct cd_mode_data_10); 3150 ccb->csio.dxfer_len = len; 3151 3152 scsi_ulto2b(len, ms10.length); 3153 ms10.control = ms6->control; 3154 bcopy(&ms10, cdb, 10); 3155 ccb->csio.cdb_len = 10; 3156 } else { 3157 struct scsi_mode_select_10 ms10; 3158 struct scsi_mode_select_6 *ms6; 3159 struct scsi_mode_header_6 *header6; 3160 struct scsi_mode_header_10 *header10; 3161 struct scsi_mode_page_header *page_header; 3162 int blk_desc_len, page_num, page_size, len; 3163 3164 ms6 = (struct scsi_mode_select_6 *)cdb; 3165 3166 bzero(&ms10, sizeof(ms10)); 3167 ms10.opcode = MODE_SELECT_10; 3168 ms10.byte2 = ms6->byte2; 3169 3170 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3171 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3172 3173 page_header = find_mode_page_6(header6); 3174 page_num = page_header->page_code; 3175 3176 blk_desc_len = header6->blk_desc_len; 3177 3178 page_size = cdgetpagesize(page_num); 3179 3180 if (page_size != (page_header->page_length + 3181 sizeof(*page_header))) 3182 page_size = page_header->page_length + 3183 sizeof(*page_header); 3184 3185 len = sizeof(*header10) + blk_desc_len + page_size; 3186 3187 len = min(params->alloc_len, len); 3188 3189 /* 3190 * Since the 6 byte parameter header is shorter than the 10 3191 * byte parameter header, we need to copy the actual mode 3192 * page data, and the block descriptor, if any, so things wind 3193 * up in the right place. The regions will overlap, but 3194 * bcopy() does the right thing. 3195 */ 3196 bcopy(params->mode_buf + sizeof(*header6), 3197 params->mode_buf + sizeof(*header10), 3198 len - sizeof(*header10)); 3199 3200 /* Make sure these fields are set correctly. */ 3201 scsi_ulto2b(0, header10->data_length); 3202 header10->medium_type = 0; 3203 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3204 3205 ccb->csio.dxfer_len = len; 3206 3207 scsi_ulto2b(len, ms10.length); 3208 ms10.control = ms6->control; 3209 bcopy(&ms10, cdb, 10); 3210 ccb->csio.cdb_len = 10; 3211 } 3212 3213 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3214 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3215 xpt_action(ccb); 3216 if (frozen) { 3217 cam_release_devq(ccb->ccb_h.path, 3218 /*relsim_flags*/0, 3219 /*openings*/0, 3220 /*timeout*/0, 3221 /*getcount_only*/0); 3222 } 3223 3224 return (ERESTART); 3225 } 3226 3227 static int 3228 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3229 { 3230 struct cd_softc *softc; 3231 struct cam_periph *periph; 3232 int error; 3233 3234 periph = xpt_path_periph(ccb->ccb_h.path); 3235 softc = (struct cd_softc *)periph->softc; 3236 3237 error = 0; 3238 3239 /* 3240 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3241 * CDB comes back with this particular error, try transforming it 3242 * into the 10 byte version. 3243 */ 3244 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3245 error = cd6byteworkaround(ccb); 3246 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 3247 CAM_SCSI_STATUS_ERROR) 3248 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 3249 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 3250 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 3251 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 3252 int sense_key, error_code, asc, ascq; 3253 3254 scsi_extract_sense(&ccb->csio.sense_data, 3255 &error_code, &sense_key, &asc, &ascq); 3256 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3257 error = cd6byteworkaround(ccb); 3258 } 3259 3260 if (error == ERESTART) 3261 return (error); 3262 3263 /* 3264 * XXX 3265 * Until we have a better way of doing pack validation, 3266 * don't treat UAs as errors. 3267 */ 3268 sense_flags |= SF_RETRY_UA; 3269 return (cam_periph_error(ccb, cam_flags, sense_flags, 3270 &softc->saved_ccb)); 3271 } 3272 3273 /* 3274 * Read table of contents 3275 */ 3276 static int 3277 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3278 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3279 { 3280 struct scsi_read_toc *scsi_cmd; 3281 u_int32_t ntoc; 3282 struct ccb_scsiio *csio; 3283 union ccb *ccb; 3284 int error; 3285 3286 ntoc = len; 3287 error = 0; 3288 3289 ccb = cdgetccb(periph, /* priority */ 1); 3290 3291 csio = &ccb->csio; 3292 3293 cam_fill_csio(csio, 3294 /* retries */ 1, 3295 /* cbfcnp */ cddone, 3296 /* flags */ CAM_DIR_IN, 3297 /* tag_action */ MSG_SIMPLE_Q_TAG, 3298 /* data_ptr */ data, 3299 /* dxfer_len */ len, 3300 /* sense_len */ SSD_FULL_SIZE, 3301 sizeof(struct scsi_read_toc), 3302 /* timeout */ 50000); 3303 3304 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3305 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3306 3307 if (mode == CD_MSF_FORMAT) 3308 scsi_cmd->byte2 |= CD_MSF; 3309 scsi_cmd->from_track = start; 3310 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3311 scsi_cmd->data_len[0] = (ntoc) >> 8; 3312 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3313 3314 scsi_cmd->op_code = READ_TOC; 3315 3316 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3317 /*sense_flags*/SF_RETRY_UA | sense_flags); 3318 3319 xpt_release_ccb(ccb); 3320 3321 return(error); 3322 } 3323 3324 static int 3325 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3326 u_int32_t format, int track, 3327 struct cd_sub_channel_info *data, u_int32_t len) 3328 { 3329 struct scsi_read_subchannel *scsi_cmd; 3330 struct ccb_scsiio *csio; 3331 union ccb *ccb; 3332 int error; 3333 3334 error = 0; 3335 3336 ccb = cdgetccb(periph, /* priority */ 1); 3337 3338 csio = &ccb->csio; 3339 3340 cam_fill_csio(csio, 3341 /* retries */ 1, 3342 /* cbfcnp */ cddone, 3343 /* flags */ CAM_DIR_IN, 3344 /* tag_action */ MSG_SIMPLE_Q_TAG, 3345 /* data_ptr */ (u_int8_t *)data, 3346 /* dxfer_len */ len, 3347 /* sense_len */ SSD_FULL_SIZE, 3348 sizeof(struct scsi_read_subchannel), 3349 /* timeout */ 50000); 3350 3351 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3352 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3353 3354 scsi_cmd->op_code = READ_SUBCHANNEL; 3355 if (mode == CD_MSF_FORMAT) 3356 scsi_cmd->byte1 |= CD_MSF; 3357 scsi_cmd->byte2 = SRS_SUBQ; 3358 scsi_cmd->subchan_format = format; 3359 scsi_cmd->track = track; 3360 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3361 scsi_cmd->control = 0; 3362 3363 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3364 /*sense_flags*/SF_RETRY_UA); 3365 3366 xpt_release_ccb(ccb); 3367 3368 return(error); 3369 } 3370 3371 /* 3372 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3373 * routine. See comments in cd6byteworkaround() for details. 3374 */ 3375 static int 3376 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3377 u_int32_t page) 3378 { 3379 struct ccb_scsiio *csio; 3380 struct cd_softc *softc; 3381 union ccb *ccb; 3382 int param_len; 3383 int error; 3384 3385 softc = (struct cd_softc *)periph->softc; 3386 3387 ccb = cdgetccb(periph, /* priority */ 1); 3388 3389 csio = &ccb->csio; 3390 3391 data->cdb_size = softc->minimum_command_size; 3392 if (data->cdb_size < 10) 3393 param_len = sizeof(struct cd_mode_data); 3394 else 3395 param_len = sizeof(struct cd_mode_data_10); 3396 3397 /* Don't say we've got more room than we actually allocated */ 3398 param_len = min(param_len, data->alloc_len); 3399 3400 scsi_mode_sense_len(csio, 3401 /* retries */ 1, 3402 /* cbfcnp */ cddone, 3403 /* tag_action */ MSG_SIMPLE_Q_TAG, 3404 /* dbd */ 0, 3405 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3406 /* page */ page, 3407 /* param_buf */ data->mode_buf, 3408 /* param_len */ param_len, 3409 /* minimum_cmd_size */ softc->minimum_command_size, 3410 /* sense_len */ SSD_FULL_SIZE, 3411 /* timeout */ 50000); 3412 3413 /* 3414 * It would be nice not to have to do this, but there's no 3415 * available pointer in the CCB that would allow us to stuff the 3416 * mode params structure in there and retrieve it in 3417 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3418 * lets the caller know what CDB size we ended up using, so they 3419 * can find the actual mode page offset. 3420 */ 3421 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3422 3423 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3424 /*sense_flags*/SF_RETRY_UA); 3425 3426 xpt_release_ccb(ccb); 3427 3428 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3429 3430 /* 3431 * This is a bit of belt-and-suspenders checking, but if we run 3432 * into a situation where the target sends back multiple block 3433 * descriptors, we might not have enough space in the buffer to 3434 * see the whole mode page. Better to return an error than 3435 * potentially access memory beyond our malloced region. 3436 */ 3437 if (error == 0) { 3438 u_int32_t data_len; 3439 3440 if (data->cdb_size == 10) { 3441 struct scsi_mode_header_10 *hdr10; 3442 3443 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3444 data_len = scsi_2btoul(hdr10->data_length); 3445 data_len += sizeof(hdr10->data_length); 3446 } else { 3447 struct scsi_mode_header_6 *hdr6; 3448 3449 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3450 data_len = hdr6->data_length; 3451 data_len += sizeof(hdr6->data_length); 3452 } 3453 3454 /* 3455 * Complain if there is more mode data available than we 3456 * allocated space for. This could potentially happen if 3457 * we miscalculated the page length for some reason, if the 3458 * drive returns multiple block descriptors, or if it sets 3459 * the data length incorrectly. 3460 */ 3461 if (data_len > data->alloc_len) { 3462 xpt_print(periph->path, "allocated modepage %d length " 3463 "%d < returned length %d\n", page, data->alloc_len, 3464 data_len); 3465 error = ENOSPC; 3466 } 3467 } 3468 return (error); 3469 } 3470 3471 /* 3472 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3473 * routine. See comments in cd6byteworkaround() for details. 3474 */ 3475 static int 3476 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3477 { 3478 struct ccb_scsiio *csio; 3479 struct cd_softc *softc; 3480 union ccb *ccb; 3481 int cdb_size, param_len; 3482 int error; 3483 3484 softc = (struct cd_softc *)periph->softc; 3485 3486 ccb = cdgetccb(periph, /* priority */ 1); 3487 3488 csio = &ccb->csio; 3489 3490 error = 0; 3491 3492 /* 3493 * If the data is formatted for the 10 byte version of the mode 3494 * select parameter list, we need to use the 10 byte CDB. 3495 * Otherwise, we use whatever the stored minimum command size. 3496 */ 3497 if (data->cdb_size == 10) 3498 cdb_size = data->cdb_size; 3499 else 3500 cdb_size = softc->minimum_command_size; 3501 3502 if (cdb_size >= 10) { 3503 struct scsi_mode_header_10 *mode_header; 3504 u_int32_t data_len; 3505 3506 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3507 3508 data_len = scsi_2btoul(mode_header->data_length); 3509 3510 scsi_ulto2b(0, mode_header->data_length); 3511 /* 3512 * SONY drives do not allow a mode select with a medium_type 3513 * value that has just been returned by a mode sense; use a 3514 * medium_type of 0 (Default) instead. 3515 */ 3516 mode_header->medium_type = 0; 3517 3518 /* 3519 * Pass back whatever the drive passed to us, plus the size 3520 * of the data length field. 3521 */ 3522 param_len = data_len + sizeof(mode_header->data_length); 3523 3524 } else { 3525 struct scsi_mode_header_6 *mode_header; 3526 3527 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3528 3529 param_len = mode_header->data_length + 1; 3530 3531 mode_header->data_length = 0; 3532 /* 3533 * SONY drives do not allow a mode select with a medium_type 3534 * value that has just been returned by a mode sense; use a 3535 * medium_type of 0 (Default) instead. 3536 */ 3537 mode_header->medium_type = 0; 3538 } 3539 3540 /* Don't say we've got more room than we actually allocated */ 3541 param_len = min(param_len, data->alloc_len); 3542 3543 scsi_mode_select_len(csio, 3544 /* retries */ 1, 3545 /* cbfcnp */ cddone, 3546 /* tag_action */ MSG_SIMPLE_Q_TAG, 3547 /* scsi_page_fmt */ 1, 3548 /* save_pages */ 0, 3549 /* param_buf */ data->mode_buf, 3550 /* param_len */ param_len, 3551 /* minimum_cmd_size */ cdb_size, 3552 /* sense_len */ SSD_FULL_SIZE, 3553 /* timeout */ 50000); 3554 3555 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3556 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3557 3558 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3559 /*sense_flags*/SF_RETRY_UA); 3560 3561 xpt_release_ccb(ccb); 3562 3563 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3564 3565 return (error); 3566 } 3567 3568 3569 3570 static int 3571 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3572 { 3573 struct ccb_scsiio *csio; 3574 union ccb *ccb; 3575 int error; 3576 u_int8_t cdb_len; 3577 3578 error = 0; 3579 ccb = cdgetccb(periph, /* priority */ 1); 3580 csio = &ccb->csio; 3581 /* 3582 * Use the smallest possible command to perform the operation. 3583 */ 3584 if ((len & 0xffff0000) == 0) { 3585 /* 3586 * We can fit in a 10 byte cdb. 3587 */ 3588 struct scsi_play_10 *scsi_cmd; 3589 3590 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3591 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3592 scsi_cmd->op_code = PLAY_10; 3593 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3594 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3595 cdb_len = sizeof(*scsi_cmd); 3596 } else { 3597 struct scsi_play_12 *scsi_cmd; 3598 3599 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3600 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3601 scsi_cmd->op_code = PLAY_12; 3602 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3603 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3604 cdb_len = sizeof(*scsi_cmd); 3605 } 3606 cam_fill_csio(csio, 3607 /*retries*/2, 3608 cddone, 3609 /*flags*/CAM_DIR_NONE, 3610 MSG_SIMPLE_Q_TAG, 3611 /*dataptr*/NULL, 3612 /*datalen*/0, 3613 /*sense_len*/SSD_FULL_SIZE, 3614 cdb_len, 3615 /*timeout*/50 * 1000); 3616 3617 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3618 /*sense_flags*/SF_RETRY_UA); 3619 3620 xpt_release_ccb(ccb); 3621 3622 return(error); 3623 } 3624 3625 static int 3626 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3627 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3628 { 3629 struct scsi_play_msf *scsi_cmd; 3630 struct ccb_scsiio *csio; 3631 union ccb *ccb; 3632 int error; 3633 3634 error = 0; 3635 3636 ccb = cdgetccb(periph, /* priority */ 1); 3637 3638 csio = &ccb->csio; 3639 3640 cam_fill_csio(csio, 3641 /* retries */ 1, 3642 /* cbfcnp */ cddone, 3643 /* flags */ CAM_DIR_NONE, 3644 /* tag_action */ MSG_SIMPLE_Q_TAG, 3645 /* data_ptr */ NULL, 3646 /* dxfer_len */ 0, 3647 /* sense_len */ SSD_FULL_SIZE, 3648 sizeof(struct scsi_play_msf), 3649 /* timeout */ 50000); 3650 3651 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3652 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3653 3654 scsi_cmd->op_code = PLAY_MSF; 3655 scsi_cmd->start_m = startm; 3656 scsi_cmd->start_s = starts; 3657 scsi_cmd->start_f = startf; 3658 scsi_cmd->end_m = endm; 3659 scsi_cmd->end_s = ends; 3660 scsi_cmd->end_f = endf; 3661 3662 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3663 /*sense_flags*/SF_RETRY_UA); 3664 3665 xpt_release_ccb(ccb); 3666 3667 return(error); 3668 } 3669 3670 3671 static int 3672 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3673 u_int32_t etrack, u_int32_t eindex) 3674 { 3675 struct scsi_play_track *scsi_cmd; 3676 struct ccb_scsiio *csio; 3677 union ccb *ccb; 3678 int error; 3679 3680 error = 0; 3681 3682 ccb = cdgetccb(periph, /* priority */ 1); 3683 3684 csio = &ccb->csio; 3685 3686 cam_fill_csio(csio, 3687 /* retries */ 1, 3688 /* cbfcnp */ cddone, 3689 /* flags */ CAM_DIR_NONE, 3690 /* tag_action */ MSG_SIMPLE_Q_TAG, 3691 /* data_ptr */ NULL, 3692 /* dxfer_len */ 0, 3693 /* sense_len */ SSD_FULL_SIZE, 3694 sizeof(struct scsi_play_track), 3695 /* timeout */ 50000); 3696 3697 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3698 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3699 3700 scsi_cmd->op_code = PLAY_TRACK; 3701 scsi_cmd->start_track = strack; 3702 scsi_cmd->start_index = sindex; 3703 scsi_cmd->end_track = etrack; 3704 scsi_cmd->end_index = eindex; 3705 3706 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3707 /*sense_flags*/SF_RETRY_UA); 3708 3709 xpt_release_ccb(ccb); 3710 3711 return(error); 3712 } 3713 3714 static int 3715 cdpause(struct cam_periph *periph, u_int32_t go) 3716 { 3717 struct scsi_pause *scsi_cmd; 3718 struct ccb_scsiio *csio; 3719 union ccb *ccb; 3720 int error; 3721 3722 error = 0; 3723 3724 ccb = cdgetccb(periph, /* priority */ 1); 3725 3726 csio = &ccb->csio; 3727 3728 cam_fill_csio(csio, 3729 /* retries */ 1, 3730 /* cbfcnp */ cddone, 3731 /* flags */ CAM_DIR_NONE, 3732 /* tag_action */ MSG_SIMPLE_Q_TAG, 3733 /* data_ptr */ NULL, 3734 /* dxfer_len */ 0, 3735 /* sense_len */ SSD_FULL_SIZE, 3736 sizeof(struct scsi_pause), 3737 /* timeout */ 50000); 3738 3739 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3740 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3741 3742 scsi_cmd->op_code = PAUSE; 3743 scsi_cmd->resume = go; 3744 3745 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3746 /*sense_flags*/SF_RETRY_UA); 3747 3748 xpt_release_ccb(ccb); 3749 3750 return(error); 3751 } 3752 3753 static int 3754 cdstartunit(struct cam_periph *periph, int load) 3755 { 3756 union ccb *ccb; 3757 int error; 3758 3759 error = 0; 3760 3761 ccb = cdgetccb(periph, /* priority */ 1); 3762 3763 scsi_start_stop(&ccb->csio, 3764 /* retries */ 1, 3765 /* cbfcnp */ cddone, 3766 /* tag_action */ MSG_SIMPLE_Q_TAG, 3767 /* start */ TRUE, 3768 /* load_eject */ load, 3769 /* immediate */ FALSE, 3770 /* sense_len */ SSD_FULL_SIZE, 3771 /* timeout */ 50000); 3772 3773 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3774 /*sense_flags*/SF_RETRY_UA); 3775 3776 xpt_release_ccb(ccb); 3777 3778 return(error); 3779 } 3780 3781 static int 3782 cdstopunit(struct cam_periph *periph, u_int32_t eject) 3783 { 3784 union ccb *ccb; 3785 int error; 3786 3787 error = 0; 3788 3789 ccb = cdgetccb(periph, /* priority */ 1); 3790 3791 scsi_start_stop(&ccb->csio, 3792 /* retries */ 1, 3793 /* cbfcnp */ cddone, 3794 /* tag_action */ MSG_SIMPLE_Q_TAG, 3795 /* start */ FALSE, 3796 /* load_eject */ eject, 3797 /* immediate */ FALSE, 3798 /* sense_len */ SSD_FULL_SIZE, 3799 /* timeout */ 50000); 3800 3801 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3802 /*sense_flags*/SF_RETRY_UA); 3803 3804 xpt_release_ccb(ccb); 3805 3806 return(error); 3807 } 3808 3809 static int 3810 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3811 { 3812 struct scsi_set_speed *scsi_cmd; 3813 struct ccb_scsiio *csio; 3814 union ccb *ccb; 3815 int error; 3816 3817 error = 0; 3818 ccb = cdgetccb(periph, /* priority */ 1); 3819 csio = &ccb->csio; 3820 3821 /* Preserve old behavior: units in multiples of CDROM speed */ 3822 if (rdspeed < 177) 3823 rdspeed *= 177; 3824 if (wrspeed < 177) 3825 wrspeed *= 177; 3826 3827 cam_fill_csio(csio, 3828 /* retries */ 1, 3829 /* cbfcnp */ cddone, 3830 /* flags */ CAM_DIR_NONE, 3831 /* tag_action */ MSG_SIMPLE_Q_TAG, 3832 /* data_ptr */ NULL, 3833 /* dxfer_len */ 0, 3834 /* sense_len */ SSD_FULL_SIZE, 3835 sizeof(struct scsi_set_speed), 3836 /* timeout */ 50000); 3837 3838 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3839 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3840 3841 scsi_cmd->opcode = SET_CD_SPEED; 3842 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3843 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3844 3845 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3846 /*sense_flags*/SF_RETRY_UA); 3847 3848 xpt_release_ccb(ccb); 3849 3850 return(error); 3851 } 3852 3853 static int 3854 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3855 { 3856 union ccb *ccb; 3857 u_int8_t *databuf; 3858 u_int32_t lba; 3859 int error; 3860 int length; 3861 3862 error = 0; 3863 databuf = NULL; 3864 lba = 0; 3865 3866 ccb = cdgetccb(periph, /* priority */ 1); 3867 3868 switch (authinfo->format) { 3869 case DVD_REPORT_AGID: 3870 length = sizeof(struct scsi_report_key_data_agid); 3871 break; 3872 case DVD_REPORT_CHALLENGE: 3873 length = sizeof(struct scsi_report_key_data_challenge); 3874 break; 3875 case DVD_REPORT_KEY1: 3876 length = sizeof(struct scsi_report_key_data_key1_key2); 3877 break; 3878 case DVD_REPORT_TITLE_KEY: 3879 length = sizeof(struct scsi_report_key_data_title); 3880 /* The lba field is only set for the title key */ 3881 lba = authinfo->lba; 3882 break; 3883 case DVD_REPORT_ASF: 3884 length = sizeof(struct scsi_report_key_data_asf); 3885 break; 3886 case DVD_REPORT_RPC: 3887 length = sizeof(struct scsi_report_key_data_rpc); 3888 break; 3889 case DVD_INVALIDATE_AGID: 3890 length = 0; 3891 break; 3892 default: 3893 error = EINVAL; 3894 goto bailout; 3895 break; /* NOTREACHED */ 3896 } 3897 3898 if (length != 0) { 3899 databuf = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 3900 } else { 3901 databuf = NULL; 3902 } 3903 3904 3905 scsi_report_key(&ccb->csio, 3906 /* retries */ 1, 3907 /* cbfcnp */ cddone, 3908 /* tag_action */ MSG_SIMPLE_Q_TAG, 3909 /* lba */ lba, 3910 /* agid */ authinfo->agid, 3911 /* key_format */ authinfo->format, 3912 /* data_ptr */ databuf, 3913 /* dxfer_len */ length, 3914 /* sense_len */ SSD_FULL_SIZE, 3915 /* timeout */ 50000); 3916 3917 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3918 /*sense_flags*/SF_RETRY_UA); 3919 3920 if (error != 0) 3921 goto bailout; 3922 3923 if (ccb->csio.resid != 0) { 3924 xpt_print(periph->path, "warning, residual for report key " 3925 "command is %d\n", ccb->csio.resid); 3926 } 3927 3928 switch(authinfo->format) { 3929 case DVD_REPORT_AGID: { 3930 struct scsi_report_key_data_agid *agid_data; 3931 3932 agid_data = (struct scsi_report_key_data_agid *)databuf; 3933 3934 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3935 RKD_AGID_SHIFT; 3936 break; 3937 } 3938 case DVD_REPORT_CHALLENGE: { 3939 struct scsi_report_key_data_challenge *chal_data; 3940 3941 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3942 3943 bcopy(chal_data->challenge_key, authinfo->keychal, 3944 min(sizeof(chal_data->challenge_key), 3945 sizeof(authinfo->keychal))); 3946 break; 3947 } 3948 case DVD_REPORT_KEY1: { 3949 struct scsi_report_key_data_key1_key2 *key1_data; 3950 3951 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3952 3953 bcopy(key1_data->key1, authinfo->keychal, 3954 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3955 break; 3956 } 3957 case DVD_REPORT_TITLE_KEY: { 3958 struct scsi_report_key_data_title *title_data; 3959 3960 title_data = (struct scsi_report_key_data_title *)databuf; 3961 3962 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3963 RKD_TITLE_CPM_SHIFT; 3964 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3965 RKD_TITLE_CP_SEC_SHIFT; 3966 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3967 RKD_TITLE_CMGS_SHIFT; 3968 bcopy(title_data->title_key, authinfo->keychal, 3969 min(sizeof(title_data->title_key), 3970 sizeof(authinfo->keychal))); 3971 break; 3972 } 3973 case DVD_REPORT_ASF: { 3974 struct scsi_report_key_data_asf *asf_data; 3975 3976 asf_data = (struct scsi_report_key_data_asf *)databuf; 3977 3978 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 3979 break; 3980 } 3981 case DVD_REPORT_RPC: { 3982 struct scsi_report_key_data_rpc *rpc_data; 3983 3984 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 3985 3986 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 3987 RKD_RPC_TYPE_SHIFT; 3988 authinfo->vend_rsts = 3989 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 3990 RKD_RPC_VENDOR_RESET_SHIFT; 3991 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 3992 authinfo->region = rpc_data->region_mask; 3993 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 3994 break; 3995 } 3996 case DVD_INVALIDATE_AGID: 3997 break; 3998 default: 3999 /* This should be impossible, since we checked above */ 4000 error = EINVAL; 4001 goto bailout; 4002 break; /* NOTREACHED */ 4003 } 4004 bailout: 4005 if (databuf != NULL) 4006 kfree(databuf, M_DEVBUF); 4007 4008 xpt_release_ccb(ccb); 4009 4010 return(error); 4011 } 4012 4013 static int 4014 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4015 { 4016 union ccb *ccb; 4017 u_int8_t *databuf; 4018 int length; 4019 int error; 4020 4021 error = 0; 4022 databuf = NULL; 4023 4024 ccb = cdgetccb(periph, /* priority */ 1); 4025 4026 switch(authinfo->format) { 4027 case DVD_SEND_CHALLENGE: { 4028 struct scsi_report_key_data_challenge *challenge_data; 4029 4030 length = sizeof(*challenge_data); 4031 4032 challenge_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4033 4034 databuf = (u_int8_t *)challenge_data; 4035 4036 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4037 challenge_data->data_len); 4038 4039 bcopy(authinfo->keychal, challenge_data->challenge_key, 4040 min(sizeof(authinfo->keychal), 4041 sizeof(challenge_data->challenge_key))); 4042 break; 4043 } 4044 case DVD_SEND_KEY2: { 4045 struct scsi_report_key_data_key1_key2 *key2_data; 4046 4047 length = sizeof(*key2_data); 4048 4049 key2_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4050 4051 databuf = (u_int8_t *)key2_data; 4052 4053 scsi_ulto2b(length - sizeof(key2_data->data_len), 4054 key2_data->data_len); 4055 4056 bcopy(authinfo->keychal, key2_data->key1, 4057 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4058 4059 break; 4060 } 4061 case DVD_SEND_RPC: { 4062 struct scsi_send_key_data_rpc *rpc_data; 4063 4064 length = sizeof(*rpc_data); 4065 4066 rpc_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4067 4068 databuf = (u_int8_t *)rpc_data; 4069 4070 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4071 rpc_data->data_len); 4072 4073 rpc_data->region_code = authinfo->region; 4074 break; 4075 } 4076 default: 4077 error = EINVAL; 4078 goto bailout; 4079 break; /* NOTREACHED */ 4080 } 4081 4082 scsi_send_key(&ccb->csio, 4083 /* retries */ 1, 4084 /* cbfcnp */ cddone, 4085 /* tag_action */ MSG_SIMPLE_Q_TAG, 4086 /* agid */ authinfo->agid, 4087 /* key_format */ authinfo->format, 4088 /* data_ptr */ databuf, 4089 /* dxfer_len */ length, 4090 /* sense_len */ SSD_FULL_SIZE, 4091 /* timeout */ 50000); 4092 4093 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4094 /*sense_flags*/SF_RETRY_UA); 4095 4096 bailout: 4097 4098 if (databuf != NULL) 4099 kfree(databuf, M_DEVBUF); 4100 4101 xpt_release_ccb(ccb); 4102 4103 return(error); 4104 } 4105 4106 static int 4107 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4108 { 4109 union ccb *ccb; 4110 u_int8_t *databuf; 4111 u_int32_t address; 4112 int error; 4113 int length; 4114 4115 error = 0; 4116 databuf = NULL; 4117 /* The address is reserved for many of the formats */ 4118 address = 0; 4119 4120 ccb = cdgetccb(periph, /* priority */ 1); 4121 4122 switch(dvdstruct->format) { 4123 case DVD_STRUCT_PHYSICAL: 4124 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4125 break; 4126 case DVD_STRUCT_COPYRIGHT: 4127 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4128 break; 4129 case DVD_STRUCT_DISCKEY: 4130 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4131 break; 4132 case DVD_STRUCT_BCA: 4133 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4134 break; 4135 case DVD_STRUCT_MANUFACT: 4136 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4137 break; 4138 case DVD_STRUCT_CMI: 4139 error = ENODEV; 4140 goto bailout; 4141 #ifdef notyet 4142 length = sizeof(struct scsi_read_dvd_struct_data_copy_manage); 4143 address = dvdstruct->address; 4144 #endif 4145 break; /* NOTREACHED */ 4146 case DVD_STRUCT_PROTDISCID: 4147 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4148 break; 4149 case DVD_STRUCT_DISCKEYBLOCK: 4150 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4151 break; 4152 case DVD_STRUCT_DDS: 4153 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4154 break; 4155 case DVD_STRUCT_MEDIUM_STAT: 4156 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4157 break; 4158 case DVD_STRUCT_SPARE_AREA: 4159 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4160 break; 4161 case DVD_STRUCT_RMD_LAST: 4162 error = ENODEV; 4163 goto bailout; 4164 #ifdef notyet 4165 length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout); 4166 address = dvdstruct->address; 4167 #endif 4168 break; /* NOTREACHED */ 4169 case DVD_STRUCT_RMD_RMA: 4170 error = ENODEV; 4171 goto bailout; 4172 #ifdef notyet 4173 length = sizeof(struct scsi_read_dvd_struct_data_rmd); 4174 address = dvdstruct->address; 4175 #endif 4176 break; /* NOTREACHED */ 4177 case DVD_STRUCT_PRERECORDED: 4178 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4179 break; 4180 case DVD_STRUCT_UNIQUEID: 4181 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4182 break; 4183 case DVD_STRUCT_DCB: 4184 error = ENODEV; 4185 goto bailout; 4186 #ifdef notyet 4187 length = sizeof(struct scsi_read_dvd_struct_data_dcb); 4188 address = dvdstruct->address; 4189 #endif 4190 break; /* NOTREACHED */ 4191 case DVD_STRUCT_LIST: 4192 /* 4193 * This is the maximum allocation length for the READ DVD 4194 * STRUCTURE command. There's nothing in the MMC3 spec 4195 * that indicates a limit in the amount of data that can 4196 * be returned from this call, other than the limits 4197 * imposed by the 2-byte length variables. 4198 */ 4199 length = 65535; 4200 break; 4201 default: 4202 error = EINVAL; 4203 goto bailout; 4204 break; /* NOTREACHED */ 4205 } 4206 4207 if (length != 0) { 4208 databuf = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4209 } else { 4210 databuf = NULL; 4211 } 4212 4213 scsi_read_dvd_structure(&ccb->csio, 4214 /* retries */ 1, 4215 /* cbfcnp */ cddone, 4216 /* tag_action */ MSG_SIMPLE_Q_TAG, 4217 /* lba */ address, 4218 /* layer_number */ dvdstruct->layer_num, 4219 /* key_format */ dvdstruct->format, 4220 /* agid */ dvdstruct->agid, 4221 /* data_ptr */ databuf, 4222 /* dxfer_len */ length, 4223 /* sense_len */ SSD_FULL_SIZE, 4224 /* timeout */ 50000); 4225 4226 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4227 /*sense_flags*/SF_RETRY_UA); 4228 4229 if (error != 0) 4230 goto bailout; 4231 4232 switch(dvdstruct->format) { 4233 case DVD_STRUCT_PHYSICAL: { 4234 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4235 struct dvd_layer *outlayer; 4236 struct scsi_read_dvd_struct_data_physical *phys_data; 4237 4238 phys_data = 4239 (struct scsi_read_dvd_struct_data_physical *)databuf; 4240 inlayer = &phys_data->layer_desc; 4241 outlayer = (struct dvd_layer *)&dvdstruct->data; 4242 4243 dvdstruct->length = sizeof(*inlayer); 4244 4245 outlayer->book_type = (inlayer->book_type_version & 4246 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4247 outlayer->book_version = (inlayer->book_type_version & 4248 RDSD_BOOK_VERSION_MASK); 4249 outlayer->disc_size = (inlayer->disc_size_max_rate & 4250 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4251 outlayer->max_rate = (inlayer->disc_size_max_rate & 4252 RDSD_MAX_RATE_MASK); 4253 outlayer->nlayers = (inlayer->layer_info & 4254 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4255 outlayer->track_path = (inlayer->layer_info & 4256 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4257 outlayer->layer_type = (inlayer->layer_info & 4258 RDSD_LAYER_TYPE_MASK); 4259 outlayer->linear_density = (inlayer->density & 4260 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4261 outlayer->track_density = (inlayer->density & 4262 RDSD_TRACK_DENSITY_MASK); 4263 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4264 RDSD_BCA_SHIFT; 4265 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4266 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4267 outlayer->end_sector_l0 = 4268 scsi_3btoul(inlayer->end_sector_layer0); 4269 break; 4270 } 4271 case DVD_STRUCT_COPYRIGHT: { 4272 struct scsi_read_dvd_struct_data_copyright *copy_data; 4273 4274 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4275 databuf; 4276 4277 dvdstruct->cpst = copy_data->cps_type; 4278 dvdstruct->rmi = copy_data->region_info; 4279 dvdstruct->length = 0; 4280 4281 break; 4282 } 4283 default: 4284 /* 4285 * Tell the user what the overall length is, no matter 4286 * what we can actually fit in the data buffer. 4287 */ 4288 dvdstruct->length = length - ccb->csio.resid - 4289 sizeof(struct scsi_read_dvd_struct_data_header); 4290 4291 /* 4292 * But only actually copy out the smaller of what we read 4293 * in or what the structure can take. 4294 */ 4295 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4296 dvdstruct->data, 4297 min(sizeof(dvdstruct->data), dvdstruct->length)); 4298 break; 4299 } 4300 bailout: 4301 4302 if (databuf != NULL) 4303 kfree(databuf, M_DEVBUF); 4304 4305 xpt_release_ccb(ccb); 4306 4307 return(error); 4308 } 4309 4310 void 4311 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4312 void (*cbfcnp)(struct cam_periph *, union ccb *), 4313 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4314 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4315 u_int8_t sense_len, u_int32_t timeout) 4316 { 4317 struct scsi_report_key *scsi_cmd; 4318 4319 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4320 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4321 scsi_cmd->opcode = REPORT_KEY; 4322 scsi_ulto4b(lba, scsi_cmd->lba); 4323 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4324 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4325 (key_format & RK_KF_KEYFORMAT_MASK); 4326 4327 cam_fill_csio(csio, 4328 retries, 4329 cbfcnp, 4330 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4331 tag_action, 4332 /*data_ptr*/ data_ptr, 4333 /*dxfer_len*/ dxfer_len, 4334 sense_len, 4335 sizeof(*scsi_cmd), 4336 timeout); 4337 } 4338 4339 void 4340 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4341 void (*cbfcnp)(struct cam_periph *, union ccb *), 4342 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4343 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4344 u_int32_t timeout) 4345 { 4346 struct scsi_send_key *scsi_cmd; 4347 4348 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4349 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4350 scsi_cmd->opcode = SEND_KEY; 4351 4352 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4353 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4354 (key_format & RK_KF_KEYFORMAT_MASK); 4355 4356 cam_fill_csio(csio, 4357 retries, 4358 cbfcnp, 4359 /*flags*/ CAM_DIR_OUT, 4360 tag_action, 4361 /*data_ptr*/ data_ptr, 4362 /*dxfer_len*/ dxfer_len, 4363 sense_len, 4364 sizeof(*scsi_cmd), 4365 timeout); 4366 } 4367 4368 4369 void 4370 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4371 void (*cbfcnp)(struct cam_periph *, union ccb *), 4372 u_int8_t tag_action, u_int32_t address, 4373 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4374 u_int8_t *data_ptr, u_int32_t dxfer_len, 4375 u_int8_t sense_len, u_int32_t timeout) 4376 { 4377 struct scsi_read_dvd_structure *scsi_cmd; 4378 4379 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4380 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4381 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4382 4383 scsi_ulto4b(address, scsi_cmd->address); 4384 scsi_cmd->layer_number = layer_number; 4385 scsi_cmd->format = format; 4386 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4387 /* The AGID is the top two bits of this byte */ 4388 scsi_cmd->agid = agid << 6; 4389 4390 cam_fill_csio(csio, 4391 retries, 4392 cbfcnp, 4393 /*flags*/ CAM_DIR_IN, 4394 tag_action, 4395 /*data_ptr*/ data_ptr, 4396 /*dxfer_len*/ dxfer_len, 4397 sense_len, 4398 sizeof(*scsi_cmd), 4399 timeout); 4400 } 4401