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/dtype.h> 58 #include <sys/malloc.h> 59 #include <sys/cdio.h> 60 #include <sys/cdrio.h> 61 #include <sys/dvdio.h> 62 #include <sys/devicestat.h> 63 #include <sys/sysctl.h> 64 #include <sys/taskqueue.h> 65 #include <sys/proc.h> 66 #include <sys/camlib.h> 67 #include <sys/udev.h> 68 69 #include <sys/buf2.h> 70 71 #include "../cam.h" 72 #include "../cam_ccb.h" 73 #include "../cam_extend.h" 74 #include "../cam_periph.h" 75 #include "../cam_xpt_periph.h" 76 #include "../cam_queue.h" 77 #include "../cam_sim.h" 78 79 #include "scsi_message.h" 80 #include "scsi_da.h" 81 #include "scsi_cd.h" 82 83 #define LEADOUT 0xaa /* leadout toc entry */ 84 85 struct cd_params { 86 u_int32_t blksize; 87 u_long disksize; 88 }; 89 90 typedef enum { 91 CD_Q_NONE = 0x00, 92 CD_Q_NO_TOUCH = 0x01, 93 CD_Q_BCD_TRACKS = 0x02, 94 CD_Q_NO_CHANGER = 0x04, 95 CD_Q_CHANGER = 0x08, 96 CD_Q_10_BYTE_ONLY = 0x10 97 } cd_quirks; 98 99 typedef enum { 100 CD_FLAG_INVALID = 0x0001, 101 CD_FLAG_NEW_DISC = 0x0002, 102 CD_FLAG_DISC_LOCKED = 0x0004, 103 CD_FLAG_DISC_REMOVABLE = 0x0008, 104 CD_FLAG_TAGGED_QUEUING = 0x0010, 105 CD_FLAG_CHANGER = 0x0040, 106 CD_FLAG_ACTIVE = 0x0080, 107 CD_FLAG_SCHED_ON_COMP = 0x0100, 108 CD_FLAG_RETRY_UA = 0x0200, 109 CD_FLAG_VALID_MEDIA = 0x0400, 110 CD_FLAG_VALID_TOC = 0x0800, 111 CD_FLAG_SCTX_INIT = 0x1000, 112 CD_FLAG_OPEN = 0x2000, 113 CD_FLAG_CAP_MUTE = 0x4000 114 } cd_flags; 115 116 typedef enum { 117 CD_CCB_POLLED = 0x00, 118 CD_CCB_PROBE = 0x01, 119 CD_CCB_BUFFER_IO = 0x02, 120 CD_CCB_WAITING = 0x03, 121 CD_CCB_TYPE_MASK = 0x0F, 122 CD_CCB_RETRY_UA = 0x10 123 } cd_ccb_state; 124 125 typedef enum { 126 CHANGER_TIMEOUT_SCHED = 0x01, 127 CHANGER_SHORT_TMOUT_SCHED = 0x02, 128 CHANGER_MANUAL_CALL = 0x04, 129 CHANGER_NEED_TIMEOUT = 0x08 130 } cd_changer_flags; 131 132 #define ccb_state ppriv_field0 133 #define ccb_bio ppriv_ptr1 134 135 struct cd_tocdata { 136 struct ioc_toc_header header; 137 struct cd_toc_entry entries[100]; 138 }; 139 140 struct cd_toc_single { 141 struct ioc_toc_header header; 142 struct cd_toc_entry entry; 143 }; 144 145 typedef enum { 146 CD_STATE_PROBE, 147 CD_STATE_NORMAL 148 } cd_state; 149 150 struct cd_softc { 151 cam_pinfo pinfo; 152 cd_state state; 153 volatile cd_flags flags; 154 struct bio_queue_head bio_queue; 155 LIST_HEAD(, ccb_hdr) pending_ccbs; 156 struct cd_params params; 157 struct disk disk; 158 union ccb saved_ccb; 159 cd_quirks quirks; 160 struct devstat device_stats; 161 STAILQ_ENTRY(cd_softc) changer_links; 162 struct cdchanger *changer; 163 int bufs_left; 164 struct cam_periph *periph; 165 int minimum_command_size; 166 int outstanding_cmds; 167 struct task sysctl_task; 168 struct sysctl_ctx_list sysctl_ctx; 169 struct sysctl_oid *sysctl_tree; 170 STAILQ_HEAD(, cd_mode_params) mode_queue; 171 struct cd_tocdata toc; 172 }; 173 174 struct cd_page_sizes { 175 int page; 176 int page_size; 177 }; 178 179 static struct cd_page_sizes cd_page_size_table[] = 180 { 181 { AUDIO_PAGE, sizeof(struct cd_audio_page)} 182 }; 183 184 struct cd_quirk_entry { 185 struct scsi_inquiry_pattern inq_pat; 186 cd_quirks quirks; 187 }; 188 189 /* 190 * The changer quirk entries aren't strictly necessary. Basically, what 191 * they do is tell cdregister() up front that a device is a changer. 192 * Otherwise, it will figure that fact out once it sees a LUN on the device 193 * that is greater than 0. If it is known up front that a device is a changer, 194 * all I/O to the device will go through the changer scheduling routines, as 195 * opposed to the "normal" CD code. 196 * 197 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because 198 * your device hangs when it gets a 10 byte command. Adding a quirk just 199 * to get rid of the informative diagnostic message is not acceptable. All 200 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be 201 * referenced in a comment along with the quirk) , and must be approved by 202 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may 203 * be removed until the submitter can explain why they are needed. 204 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary) 205 * when the CAM_NEW_TRAN_CODE work is done. 206 */ 207 static struct cd_quirk_entry cd_quirk_table[] = 208 { 209 { 210 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 211 /*quirks*/ CD_Q_CHANGER 212 }, 213 { 214 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*", 215 "*"}, /* quirks */ CD_Q_CHANGER 216 }, 217 { 218 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"}, 219 /* quirks */ CD_Q_CHANGER 220 }, 221 { 222 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 223 /* quirks */ CD_Q_BCD_TRACKS 224 } 225 }; 226 227 static d_open_t cdopen; 228 static d_close_t cdclose; 229 static d_ioctl_t cdioctl; 230 static d_strategy_t cdstrategy; 231 232 static periph_init_t cdinit; 233 static periph_ctor_t cdregister; 234 static periph_dtor_t cdcleanup; 235 static periph_start_t cdstart; 236 static periph_oninv_t cdoninvalidate; 237 static void cdasync(void *callback_arg, u_int32_t code, 238 struct cam_path *path, void *arg); 239 static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS); 240 static void cdshorttimeout(void *arg); 241 static void cdschedule(struct cam_periph *periph, int priority); 242 static void cdrunchangerqueue(void *arg); 243 static void cdchangerschedule(struct cd_softc *softc); 244 static int cdrunccb(union ccb *ccb, 245 int (*error_routine)(union ccb *ccb, 246 u_int32_t cam_flags, 247 u_int32_t sense_flags), 248 u_int32_t cam_flags, u_int32_t sense_flags); 249 static union ccb *cdgetccb(struct cam_periph *periph, 250 u_int32_t priority); 251 static void cddone(struct cam_periph *periph, 252 union ccb *start_ccb); 253 static int cderror(union ccb *ccb, u_int32_t cam_flags, 254 u_int32_t sense_flags); 255 static union cd_pages *cdgetpage(struct cd_mode_params *mode_params); 256 static int cdgetpagesize(int page_num); 257 static void cdprevent(struct cam_periph *periph, int action); 258 static int cdcheckmedia(struct cam_periph *periph); 259 static int cdsize(struct cam_periph *periph, u_int32_t *size); 260 static int cd6byteworkaround(union ccb *ccb); 261 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 262 u_int32_t start, u_int8_t *data, 263 u_int32_t len, u_int32_t sense_flags); 264 static int cdgetmode(struct cam_periph *periph, 265 struct cd_mode_params *data, u_int32_t page); 266 static int cdsetmode(struct cam_periph *periph, 267 struct cd_mode_params *data); 268 static int cdplay(struct cam_periph *periph, u_int32_t blk, 269 u_int32_t len); 270 static int cdreadsubchannel(struct cam_periph *periph, 271 u_int32_t mode, u_int32_t format, 272 int track, 273 struct cd_sub_channel_info *data, 274 u_int32_t len); 275 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 276 u_int32_t starts, u_int32_t startf, 277 u_int32_t endm, u_int32_t ends, 278 u_int32_t endf); 279 static int cdplaytracks(struct cam_periph *periph, 280 u_int32_t strack, u_int32_t sindex, 281 u_int32_t etrack, u_int32_t eindex); 282 static int cdpause(struct cam_periph *periph, u_int32_t go); 283 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 284 static int cdstartunit(struct cam_periph *periph, int load); 285 static int cdsetspeed(struct cam_periph *periph, 286 u_int32_t rdspeed, u_int32_t wrspeed); 287 static int cdreportkey(struct cam_periph *periph, 288 struct dvd_authinfo *authinfo); 289 static int cdsendkey(struct cam_periph *periph, 290 struct dvd_authinfo *authinfo); 291 static int cdreaddvdstructure(struct cam_periph *periph, 292 struct dvd_struct *dvdstruct); 293 294 static struct periph_driver cddriver = 295 { 296 cdinit, "cd", 297 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 298 }; 299 300 PERIPHDRIVER_DECLARE(cd, cddriver); 301 302 static struct dev_ops cd_ops = { 303 { "cd", 0, D_DISK | D_MPSAFE }, 304 .d_open = cdopen, 305 .d_close = cdclose, 306 .d_read = physread, 307 .d_write = physwrite, 308 .d_ioctl = cdioctl, 309 .d_strategy = cdstrategy 310 }; 311 312 static struct extend_array *cdperiphs; 313 314 #ifndef CHANGER_MIN_BUSY_SECONDS 315 #define CHANGER_MIN_BUSY_SECONDS 5 316 #endif 317 #ifndef CHANGER_MAX_BUSY_SECONDS 318 #define CHANGER_MAX_BUSY_SECONDS 15 319 #endif 320 321 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 322 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 323 324 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 325 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 326 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 327 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 328 TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); 329 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 330 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 331 TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds); 332 333 struct cdchanger { 334 path_id_t path_id; 335 target_id_t target_id; 336 int num_devices; 337 struct camq devq; 338 struct timeval start_time; 339 struct cd_softc *cur_device; 340 struct callout short_handle; 341 struct callout long_handle; 342 volatile cd_changer_flags flags; 343 STAILQ_ENTRY(cdchanger) changer_links; 344 STAILQ_HEAD(chdevlist, cd_softc) chluns; 345 }; 346 347 static struct lock changerq_lock; 348 static STAILQ_HEAD(changerlist, cdchanger) changerq; 349 static int num_changers; 350 351 MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers"); 352 353 static void 354 cdinit(void) 355 { 356 cam_status status; 357 358 lockinit(&changerq_lock, "cdchangerq", 0, LK_CANRECURSE); 359 STAILQ_INIT(&changerq); 360 361 /* 362 * Create our extend array for storing the devices we attach to. 363 */ 364 cdperiphs = cam_extend_new(); 365 if (cdperiphs == NULL) { 366 kprintf("cd: Failed to alloc extend array!\n"); 367 return; 368 } 369 370 /* 371 * Install a global async callback. This callback will 372 * receive async callbacks like "new device found". 373 */ 374 status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL); 375 376 if (status != CAM_REQ_CMP) { 377 kprintf("cd: Failed to attach master async callback " 378 "due to status 0x%x!\n", status); 379 } 380 } 381 382 static void 383 cdoninvalidate(struct cam_periph *periph) 384 { 385 struct cd_softc *softc; 386 struct buf *q_bp; 387 struct bio *q_bio; 388 389 softc = (struct cd_softc *)periph->softc; 390 391 /* 392 * De-register any async callbacks. 393 */ 394 xpt_register_async(0, cdasync, periph, periph->path); 395 396 softc->flags |= CD_FLAG_INVALID; 397 398 /* 399 * Return all queued I/O with ENXIO. 400 * XXX Handle any transactions queued to the card 401 * with XPT_ABORT_CCB. 402 */ 403 while ((q_bio = bioq_takefirst(&softc->bio_queue)) != NULL) { 404 q_bp = q_bio->bio_buf; 405 q_bp->b_resid = q_bp->b_bcount; 406 q_bp->b_error = ENXIO; 407 q_bp->b_flags |= B_ERROR; 408 biodone(q_bio); 409 } 410 411 /* 412 * If this device is part of a changer, and it was scheduled 413 * to run, remove it from the run queue since we just nuked 414 * all of its scheduled I/O. 415 */ 416 if ((softc->flags & CD_FLAG_CHANGER) 417 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 418 camq_remove(&softc->changer->devq, softc->pinfo.index); 419 420 xpt_print(periph->path, "lost device\n"); 421 } 422 423 static void 424 cdcleanup(struct cam_periph *periph) 425 { 426 struct cd_softc *softc; 427 428 softc = (struct cd_softc *)periph->softc; 429 430 xpt_print(periph->path, "removing device entry\n"); 431 432 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0 433 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 434 xpt_print(periph->path, "can't remove sysctl context\n"); 435 } 436 437 /* 438 * In the queued, non-active case, the device in question 439 * has already been removed from the changer run queue. Since this 440 * device is active, we need to de-activate it, and schedule 441 * another device to run. (if there is another one to run) 442 */ 443 if ((softc->flags & CD_FLAG_CHANGER) 444 && (softc->flags & CD_FLAG_ACTIVE)) { 445 446 /* 447 * The purpose of the short timeout is soley to determine 448 * whether the current device has finished or not. Well, 449 * since we're removing the active device, we know that it 450 * is finished. So, get rid of the short timeout. 451 * Otherwise, if we're in the time period before the short 452 * timeout fires, and there are no other devices in the 453 * queue to run, there won't be any other device put in the 454 * active slot. i.e., when we call cdrunchangerqueue() 455 * below, it won't do anything. Then, when the short 456 * timeout fires, it'll look at the "current device", which 457 * we are free below, and possibly panic the kernel on a 458 * bogus pointer reference. 459 * 460 * The long timeout doesn't really matter, since we 461 * decrement the qfrozen_cnt to indicate that there is 462 * nothing in the active slot now. Therefore, there won't 463 * be any bogus pointer references there. 464 */ 465 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 466 callout_stop(&softc->changer->short_handle); 467 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 468 } 469 softc->changer->devq.qfrozen_cnt--; 470 softc->changer->flags |= CHANGER_MANUAL_CALL; 471 cdrunchangerqueue(softc->changer); 472 } 473 474 /* 475 * If we're removing the last device on the changer, go ahead and 476 * remove the changer device structure. 477 */ 478 if ((softc->flags & CD_FLAG_CHANGER) 479 && (--softc->changer->num_devices == 0)) { 480 481 /* 482 * Theoretically, there shouldn't be any timeouts left, but 483 * I'm not completely sure that that will be the case. So, 484 * it won't hurt to check and see if there are any left. 485 */ 486 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 487 callout_stop(&softc->changer->long_handle); 488 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 489 } 490 491 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 492 callout_stop(&softc->changer->short_handle); 493 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 494 } 495 496 lockmgr(&changerq_lock, LK_EXCLUSIVE); 497 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 498 changer_links); 499 num_changers--; 500 lockmgr(&changerq_lock, LK_RELEASE); 501 xpt_print(periph->path, "removing changer entry\n"); 502 kfree(softc->changer, M_DEVBUF); 503 } 504 devstat_remove_entry(&softc->device_stats); 505 cam_extend_release(cdperiphs, periph->unit_number); 506 if (softc->disk.d_rawdev) { 507 cam_periph_unlock(periph); 508 disk_destroy(&softc->disk); 509 cam_periph_lock(periph); 510 } 511 kfree(softc, M_DEVBUF); 512 } 513 514 static void 515 cdasync(void *callback_arg, u_int32_t code, 516 struct cam_path *path, void *arg) 517 { 518 struct cam_periph *periph; 519 520 periph = (struct cam_periph *)callback_arg; 521 522 switch (code) { 523 case AC_FOUND_DEVICE: 524 { 525 struct ccb_getdev *cgd; 526 cam_status status; 527 528 cgd = (struct ccb_getdev *)arg; 529 if (cgd == NULL) 530 break; 531 532 if (SID_TYPE(&cgd->inq_data) != T_CDROM 533 && SID_TYPE(&cgd->inq_data) != T_WORM) 534 break; 535 536 /* 537 * Don't complain if a valid peripheral is already attached. 538 */ 539 periph = cam_periph_find(cgd->ccb_h.path, "cd"); 540 if (periph && (periph->flags & CAM_PERIPH_INVALID) == 0) 541 break; 542 543 /* 544 * Allocate a peripheral instance for 545 * this device and start the probe 546 * process. 547 */ 548 status = cam_periph_alloc(cdregister, cdoninvalidate, 549 cdcleanup, cdstart, 550 "cd", CAM_PERIPH_BIO, 551 cgd->ccb_h.path, cdasync, 552 AC_FOUND_DEVICE, cgd); 553 554 if (status != CAM_REQ_CMP && status != CAM_REQ_INPROG) { 555 kprintf("cdasync: Unable to attach new device " 556 "due to status 0x%x\n", status); 557 } 558 break; 559 } 560 case AC_SENT_BDR: 561 case AC_BUS_RESET: 562 { 563 struct cd_softc *softc; 564 struct ccb_hdr *ccbh; 565 566 softc = (struct cd_softc *)periph->softc; 567 /* 568 * Don't fail on the expected unit attention 569 * that will occur. 570 */ 571 softc->flags |= CD_FLAG_RETRY_UA; 572 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 573 ccbh->ccb_state |= CD_CCB_RETRY_UA; 574 /* FALLTHROUGH */ 575 } 576 default: 577 cam_periph_async(periph, code, path, arg); 578 break; 579 } 580 } 581 582 static void 583 cdsysctlinit(void *context, int pending) 584 { 585 struct cam_periph *periph; 586 struct cd_softc *softc; 587 char tmpstr[80], tmpstr2[80]; 588 589 periph = (struct cam_periph *)context; 590 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 591 return; 592 } 593 594 softc = (struct cd_softc *)periph->softc; 595 ksnprintf(tmpstr, sizeof(tmpstr), 596 "CAM CD unit %d", periph->unit_number); 597 ksnprintf(tmpstr2, sizeof(tmpstr2), 598 "%d", periph->unit_number); 599 600 sysctl_ctx_free(&softc->sysctl_ctx); 601 sysctl_ctx_init(&softc->sysctl_ctx); 602 softc->flags |= CD_FLAG_SCTX_INIT; 603 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 604 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO, 605 tmpstr2, CTLFLAG_RD, 0, tmpstr); 606 607 if (softc->sysctl_tree == NULL) { 608 kprintf("cdsysctlinit: unable to allocate sysctl tree\n"); 609 cam_periph_release(periph); 610 return; 611 } 612 613 /* 614 * Now register the sysctl handler, so the user can the value on 615 * the fly. 616 */ 617 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 618 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 619 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I", 620 "Minimum CDB size"); 621 622 cam_periph_release(periph); 623 } 624 625 /* 626 * We have a handler function for this so we can check the values when the 627 * user sets them, instead of every time we look at them. 628 */ 629 static int 630 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS) 631 { 632 int error, value; 633 634 value = *(int *)arg1; 635 636 error = sysctl_handle_int(oidp, &value, 0, req); 637 638 if ((error != 0) || (req->newptr == NULL)) 639 return (error); 640 641 /* 642 * The only real values we can have here are 6 or 10. I don't 643 * really forsee having 12 be an option at any time in the future. 644 * So if the user sets something less than or equal to 6, we'll set 645 * it to 6. If he sets something greater than 6, we'll set it to 10. 646 * 647 * I suppose we could just return an error here for the wrong values, 648 * but I don't think it's necessary to do so, as long as we can 649 * determine the user's intent without too much trouble. 650 */ 651 if (value < 6) 652 value = 6; 653 else if (value > 6) 654 value = 10; 655 656 *(int *)arg1 = value; 657 658 return (0); 659 } 660 661 662 static cam_status 663 cdregister(struct cam_periph *periph, void *arg) 664 { 665 struct cd_softc *softc; 666 struct ccb_pathinq *cpi; 667 struct ccb_getdev *cgd; 668 char tmpstr[80]; 669 caddr_t match; 670 671 cgd = (struct ccb_getdev *)arg; 672 if (periph == NULL) { 673 kprintf("cdregister: periph was NULL!!\n"); 674 return(CAM_REQ_CMP_ERR); 675 } 676 if (cgd == NULL) { 677 kprintf("cdregister: no getdev CCB, can't register device\n"); 678 return(CAM_REQ_CMP_ERR); 679 } 680 681 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 682 sysctl_ctx_init(&softc->sysctl_ctx); 683 LIST_INIT(&softc->pending_ccbs); 684 STAILQ_INIT(&softc->mode_queue); 685 softc->state = CD_STATE_PROBE; 686 bioq_init(&softc->bio_queue); 687 if (SID_IS_REMOVABLE(&cgd->inq_data)) 688 softc->flags |= CD_FLAG_DISC_REMOVABLE; 689 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 690 softc->flags |= CD_FLAG_TAGGED_QUEUING; 691 692 periph->softc = softc; 693 softc->periph = periph; 694 695 cam_extend_set(cdperiphs, periph->unit_number, periph); 696 697 /* 698 * See if this device has any quirks. 699 */ 700 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 701 (caddr_t)cd_quirk_table, 702 NELEM(cd_quirk_table), 703 sizeof(*cd_quirk_table), scsi_inquiry_match); 704 705 if (match != NULL) 706 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 707 else 708 softc->quirks = CD_Q_NONE; 709 710 /* Check if the SIM does not want 6 byte commands */ 711 cpi = &xpt_alloc_ccb()->cpi; 712 xpt_setup_ccb(&cpi->ccb_h, periph->path, /*priority*/1); 713 cpi->ccb_h.func_code = XPT_PATH_INQ; 714 xpt_action((union ccb *)cpi); 715 if (cpi->ccb_h.status == CAM_REQ_CMP && (cpi->hba_misc & PIM_NO_6_BYTE)) 716 softc->quirks |= CD_Q_10_BYTE_ONLY; 717 xpt_free_ccb(&cpi->ccb_h); 718 719 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph); 720 721 /* The default is 6 byte commands, unless quirked otherwise */ 722 if (softc->quirks & CD_Q_10_BYTE_ONLY) 723 softc->minimum_command_size = 10; 724 else 725 softc->minimum_command_size = 6; 726 727 /* 728 * Load the user's default, if any. 729 */ 730 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size", 731 periph->unit_number); 732 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size); 733 734 /* 6 and 10 are the only permissible values here. */ 735 if (softc->minimum_command_size < 6) 736 softc->minimum_command_size = 6; 737 else if (softc->minimum_command_size > 6) 738 softc->minimum_command_size = 10; 739 740 /* 741 * We need to register the statistics structure for this device, 742 * but we don't have the blocksize yet for it. So, we register 743 * the structure and indicate that we don't have the blocksize 744 * yet. Unlike other SCSI peripheral drivers, we explicitly set 745 * the device type here to be CDROM, rather than just ORing in 746 * the device type. This is because this driver can attach to either 747 * CDROM or WORM devices, and we want this peripheral driver to 748 * show up in the devstat list as a CD peripheral driver, not a 749 * WORM peripheral driver. WORM drives will also have the WORM 750 * driver attached to them. 751 */ 752 cam_periph_unlock(periph); 753 devstat_add_entry(&softc->device_stats, "cd", 754 periph->unit_number, 0, 755 DEVSTAT_BS_UNAVAILABLE, 756 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 757 DEVSTAT_PRIORITY_CD); 758 disk_create(periph->unit_number, &softc->disk, &cd_ops); 759 disk_setdisktype(&softc->disk, "optical"); 760 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 761 softc->disk.d_info.d_dsflags = DSO_ONESLICE | DSO_COMPATLABEL | 762 DSO_COMPATPARTA; 763 cam_periph_lock(periph); 764 765 /* 766 * Add an async callback so that we get 767 * notified if this device goes away. 768 */ 769 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 770 cdasync, periph, periph->path); 771 772 /* 773 * If the target lun is greater than 0, we most likely have a CD 774 * changer device. Check the quirk entries as well, though, just 775 * in case someone has a CD tower with one lun per drive or 776 * something like that. Also, if we know up front that a 777 * particular device is a changer, we can mark it as such starting 778 * with lun 0, instead of lun 1. It shouldn't be necessary to have 779 * a quirk entry to define something as a changer, however. 780 */ 781 if (((cgd->ccb_h.target_lun > 0) 782 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 783 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 784 struct cdchanger *nchanger; 785 struct cam_periph *nperiph; 786 struct cam_path *path; 787 cam_status status; 788 int found; 789 790 /* Set the changer flag in the current device's softc */ 791 softc->flags |= CD_FLAG_CHANGER; 792 793 /* 794 * Now, look around for an existing changer device with the 795 * same path and target ID as the current device. 796 */ 797 lockmgr(&changerq_lock, LK_EXCLUSIVE); 798 for (found = 0, 799 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 800 nchanger != NULL; 801 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 802 if ((nchanger->path_id == cgd->ccb_h.path_id) 803 && (nchanger->target_id == cgd->ccb_h.target_id)) { 804 found = 1; 805 break; 806 } 807 } 808 lockmgr(&changerq_lock, LK_RELEASE); 809 810 /* 811 * If we found a matching entry, just add this device to 812 * the list of devices on this changer. 813 */ 814 if (found == 1) { 815 struct chdevlist *chlunhead; 816 817 chlunhead = &nchanger->chluns; 818 819 /* 820 * XXX KDM look at consolidating this code with the 821 * code below in a separate function. 822 */ 823 824 /* 825 * Create a path with lun id 0, and see if we can 826 * find a matching device 827 */ 828 status = xpt_create_path(&path, /*periph*/ periph, 829 cgd->ccb_h.path_id, 830 cgd->ccb_h.target_id, 0); 831 832 if ((status == CAM_REQ_CMP) 833 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 834 struct cd_softc *nsoftc; 835 836 nsoftc = (struct cd_softc *)nperiph->softc; 837 838 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 839 nsoftc->flags |= CD_FLAG_CHANGER; 840 nchanger->num_devices++; 841 if (camq_resize(&nchanger->devq, 842 nchanger->num_devices)!=CAM_REQ_CMP){ 843 kprintf("cdregister: " 844 "camq_resize " 845 "failed, changer " 846 "support may " 847 "be messed up\n"); 848 } 849 nsoftc->changer = nchanger; 850 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 851 852 STAILQ_INSERT_TAIL(&nchanger->chluns, 853 nsoftc,changer_links); 854 } 855 xpt_free_path(path); 856 } else if (status == CAM_REQ_CMP) 857 xpt_free_path(path); 858 else { 859 kprintf("cdregister: unable to allocate path\n" 860 "cdregister: changer support may be " 861 "broken\n"); 862 } 863 864 nchanger->num_devices++; 865 866 softc->changer = nchanger; 867 softc->pinfo.index = CAM_UNQUEUED_INDEX; 868 869 if (camq_resize(&nchanger->devq, 870 nchanger->num_devices) != CAM_REQ_CMP) { 871 kprintf("cdregister: camq_resize " 872 "failed, changer support may " 873 "be messed up\n"); 874 } 875 876 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 877 } 878 /* 879 * In this case, we don't already have an entry for this 880 * particular changer, so we need to create one, add it to 881 * the queue, and queue this device on the list for this 882 * changer. Before we queue this device, however, we need 883 * to search for lun id 0 on this target, and add it to the 884 * queue first, if it exists. (and if it hasn't already 885 * been marked as part of the changer.) 886 */ 887 else { 888 nchanger = kmalloc(sizeof(struct cdchanger), 889 M_DEVBUF, M_INTWAIT | M_ZERO); 890 callout_init(&nchanger->short_handle); 891 callout_init(&nchanger->long_handle); 892 if (camq_init(&nchanger->devq, 1) != 0) { 893 softc->flags &= ~CD_FLAG_CHANGER; 894 kprintf("cdregister: changer support " 895 "disabled\n"); 896 goto cdregisterexit; 897 } 898 899 nchanger->path_id = cgd->ccb_h.path_id; 900 nchanger->target_id = cgd->ccb_h.target_id; 901 902 /* this is superfluous, but it makes things clearer */ 903 nchanger->num_devices = 0; 904 905 STAILQ_INIT(&nchanger->chluns); 906 907 callout_init(&nchanger->long_handle); 908 callout_init(&nchanger->short_handle); 909 910 lockmgr(&changerq_lock, LK_EXCLUSIVE); 911 num_changers++; 912 STAILQ_INSERT_TAIL(&changerq, nchanger, 913 changer_links); 914 lockmgr(&changerq_lock, LK_RELEASE); 915 916 /* 917 * Create a path with lun id 0, and see if we can 918 * find a matching device 919 */ 920 status = xpt_create_path(&path, /*periph*/ periph, 921 cgd->ccb_h.path_id, 922 cgd->ccb_h.target_id, 0); 923 924 /* 925 * If we were able to allocate the path, and if we 926 * find a matching device and it isn't already 927 * marked as part of a changer, then we add it to 928 * the current changer. 929 */ 930 if ((status == CAM_REQ_CMP) 931 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 932 && ((((struct cd_softc *)periph->softc)->flags & 933 CD_FLAG_CHANGER) == 0)) { 934 struct cd_softc *nsoftc; 935 936 nsoftc = (struct cd_softc *)nperiph->softc; 937 938 nsoftc->flags |= CD_FLAG_CHANGER; 939 nchanger->num_devices++; 940 if (camq_resize(&nchanger->devq, 941 nchanger->num_devices) != CAM_REQ_CMP) { 942 kprintf("cdregister: camq_resize " 943 "failed, changer support may " 944 "be messed up\n"); 945 } 946 nsoftc->changer = nchanger; 947 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 948 949 STAILQ_INSERT_TAIL(&nchanger->chluns, 950 nsoftc, changer_links); 951 xpt_free_path(path); 952 } else if (status == CAM_REQ_CMP) 953 xpt_free_path(path); 954 else { 955 kprintf("cdregister: unable to allocate path\n" 956 "cdregister: changer support may be " 957 "broken\n"); 958 } 959 960 softc->changer = nchanger; 961 softc->pinfo.index = CAM_UNQUEUED_INDEX; 962 nchanger->num_devices++; 963 if (camq_resize(&nchanger->devq, 964 nchanger->num_devices) != CAM_REQ_CMP) { 965 kprintf("cdregister: camq_resize " 966 "failed, changer support may " 967 "be messed up\n"); 968 } 969 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 970 changer_links); 971 } 972 } 973 974 cdregisterexit: 975 976 /* 977 * Refcount and block open attempts until we are setup 978 * Can't block 979 */ 980 cam_periph_hold(periph, 0); 981 982 if ((softc->flags & CD_FLAG_CHANGER) == 0) 983 xpt_schedule(periph, /*priority*/5); 984 else 985 cdschedule(periph, /*priority*/ 5); 986 987 return(CAM_REQ_CMP); 988 } 989 990 static int 991 cdopen(struct dev_open_args *ap) 992 { 993 cdev_t dev = ap->a_head.a_dev; 994 struct cam_periph *periph; 995 struct cd_softc *softc; 996 int unit, error; 997 998 unit = dkunit(dev); 999 periph = cam_extend_get(cdperiphs, unit); 1000 1001 if (periph == NULL) 1002 return (ENXIO); 1003 1004 softc = (struct cd_softc *)periph->softc; 1005 1006 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1007 return(ENXIO); 1008 1009 cam_periph_lock(periph); 1010 1011 if (softc->flags & CD_FLAG_INVALID) { 1012 cam_periph_unlock(periph); 1013 cam_periph_release(periph); 1014 return(ENXIO); 1015 } 1016 1017 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 1018 cam_periph_unlock(periph); 1019 cam_periph_release(periph); 1020 return (error); 1021 } 1022 1023 /* Closes aren't symmetrical with opens, so fix up the refcounting. */ 1024 if (softc->flags & CD_FLAG_OPEN) 1025 cam_periph_release(periph); 1026 else 1027 softc->flags |= CD_FLAG_OPEN; 1028 1029 /* 1030 * Check for media, and set the appropriate flags. We don't bail 1031 * if we don't have media, but then we don't allow anything but the 1032 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media. 1033 * 1034 * XXX KDM for now, we do fail the open if we don't have media. We 1035 * can change this once we've figured out how to make the slice 1036 * code work well with media changing underneath it. 1037 */ 1038 error = cdcheckmedia(periph); 1039 1040 if (error) { 1041 softc->flags |= CD_FLAG_CAP_MUTE; 1042 } else { 1043 softc->flags &= ~CD_FLAG_CAP_MUTE; 1044 } 1045 1046 cdprevent(periph, PR_PREVENT); 1047 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 1048 cam_periph_unhold(periph, 1); 1049 /* stays acquired */ 1050 1051 return (0); 1052 } 1053 1054 static int 1055 cdclose(struct dev_close_args *ap) 1056 { 1057 cdev_t dev = ap->a_head.a_dev; 1058 struct cam_periph *periph; 1059 struct cd_softc *softc; 1060 struct disk_info *info; 1061 int unit; 1062 1063 unit = dkunit(dev); 1064 periph = cam_extend_get(cdperiphs, unit); 1065 if (periph == NULL) 1066 return (ENXIO); 1067 1068 softc = (struct cd_softc *)periph->softc; 1069 1070 cam_periph_lock(periph); 1071 cam_periph_hold(periph, 0); 1072 1073 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1074 cdprevent(periph, PR_ALLOW); 1075 1076 /* 1077 * Unconditionally set the dsopen() flags back to their default 1078 * state. 1079 */ 1080 info = &softc->disk.d_info; 1081 info->d_dsflags &= ~DSO_NOLABELS; 1082 info->d_dsflags |= DSO_COMPATLABEL; 1083 1084 /* 1085 * Since we're closing this CD, mark the blocksize as unavailable. 1086 * It will be marked as available when the CD is opened again. 1087 */ 1088 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 1089 1090 /* 1091 * We'll check the media and toc again at the next open(). 1092 */ 1093 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC|CD_FLAG_OPEN); 1094 1095 cam_periph_unhold(periph, 1); 1096 cam_periph_release(periph); 1097 1098 return (0); 1099 } 1100 1101 static void 1102 cdshorttimeout(void *arg) 1103 { 1104 struct cdchanger *changer; 1105 1106 changer = (struct cdchanger *)arg; 1107 1108 /* Always clear the short timeout flag, since that's what we're in */ 1109 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1110 1111 /* 1112 * Check to see if there is any more pending or outstanding I/O for 1113 * this device. If not, move it out of the active slot. 1114 */ 1115 if ((bioq_first(&changer->cur_device->bio_queue) == NULL) 1116 && (changer->cur_device->outstanding_cmds == 0)) { 1117 changer->flags |= CHANGER_MANUAL_CALL; 1118 cdrunchangerqueue(changer); 1119 } 1120 } 1121 1122 /* 1123 * This is a wrapper for xpt_schedule. It only applies to changers. 1124 */ 1125 static void 1126 cdschedule(struct cam_periph *periph, int priority) 1127 { 1128 struct cd_softc *softc; 1129 1130 softc = (struct cd_softc *)periph->softc; 1131 1132 /* 1133 * If this device isn't currently queued, and if it isn't 1134 * the active device, then we queue this device and run the 1135 * changer queue if there is no timeout scheduled to do it. 1136 * If this device is the active device, just schedule it 1137 * to run again. If this device is queued, there should be 1138 * a timeout in place already that will make sure it runs. 1139 */ 1140 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1141 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1142 /* 1143 * We don't do anything with the priority here. 1144 * This is strictly a fifo queue. 1145 */ 1146 softc->pinfo.priority = 1; 1147 softc->pinfo.generation = ++softc->changer->devq.generation; 1148 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1149 1150 /* 1151 * Since we just put a device in the changer queue, 1152 * check and see if there is a timeout scheduled for 1153 * this changer. If so, let the timeout handle 1154 * switching this device into the active slot. If 1155 * not, manually call the timeout routine to 1156 * bootstrap things. 1157 */ 1158 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1159 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1160 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1161 softc->changer->flags |= CHANGER_MANUAL_CALL; 1162 cdrunchangerqueue(softc->changer); 1163 } 1164 } else if ((softc->flags & CD_FLAG_ACTIVE) 1165 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) { 1166 xpt_schedule(periph, priority); 1167 } 1168 } 1169 1170 static void 1171 cdrunchangerqueue(void *arg) 1172 { 1173 struct cd_softc *softc; 1174 struct cdchanger *changer; 1175 int called_from_timeout; 1176 1177 changer = (struct cdchanger *)arg; 1178 1179 /* 1180 * If we have NOT been called from cdstrategy() or cddone(), and 1181 * instead from a timeout routine, go ahead and clear the 1182 * timeout flag. 1183 */ 1184 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1185 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1186 called_from_timeout = 1; 1187 } else 1188 called_from_timeout = 0; 1189 1190 /* Always clear the manual call flag */ 1191 changer->flags &= ~CHANGER_MANUAL_CALL; 1192 1193 /* nothing to do if the queue is empty */ 1194 if (changer->devq.entries <= 0) { 1195 return; 1196 } 1197 1198 /* 1199 * If the changer queue is frozen, that means we have an active 1200 * device. 1201 */ 1202 if (changer->devq.qfrozen_cnt > 0) { 1203 1204 /* 1205 * We always need to reset the frozen count and clear the 1206 * active flag. 1207 */ 1208 changer->devq.qfrozen_cnt--; 1209 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1210 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1211 1212 if (changer->cur_device->outstanding_cmds > 0) { 1213 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1214 changer->cur_device->bufs_left = 1215 changer->cur_device->outstanding_cmds; 1216 if (called_from_timeout) { 1217 callout_reset(&changer->long_handle, 1218 changer_max_busy_seconds * hz, 1219 cdrunchangerqueue, changer); 1220 changer->flags |= CHANGER_TIMEOUT_SCHED; 1221 } 1222 return; 1223 } 1224 1225 /* 1226 * Check to see whether the current device has any I/O left 1227 * to do. If so, requeue it at the end of the queue. If 1228 * not, there is no need to requeue it. 1229 */ 1230 if (bioq_first(&changer->cur_device->bio_queue) != NULL) { 1231 1232 changer->cur_device->pinfo.generation = 1233 ++changer->devq.generation; 1234 camq_insert(&changer->devq, 1235 (cam_pinfo *)changer->cur_device); 1236 } 1237 } 1238 1239 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1240 1241 changer->cur_device = softc; 1242 1243 changer->devq.qfrozen_cnt++; 1244 softc->flags |= CD_FLAG_ACTIVE; 1245 1246 /* Just in case this device is waiting */ 1247 wakeup(&softc->changer); 1248 xpt_schedule(softc->periph, /*priority*/ 1); 1249 1250 /* 1251 * Get rid of any pending timeouts, and set a flag to schedule new 1252 * ones so this device gets its full time quantum. 1253 */ 1254 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1255 callout_stop(&changer->long_handle); 1256 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1257 } 1258 1259 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1260 callout_stop(&changer->short_handle); 1261 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1262 } 1263 1264 /* 1265 * We need to schedule timeouts, but we only do this after the 1266 * first transaction has completed. This eliminates the changer 1267 * switch time. 1268 */ 1269 changer->flags |= CHANGER_NEED_TIMEOUT; 1270 } 1271 1272 static void 1273 cdchangerschedule(struct cd_softc *softc) 1274 { 1275 struct cdchanger *changer; 1276 1277 changer = softc->changer; 1278 1279 /* 1280 * If this is a changer, and this is the current device, 1281 * and this device has at least the minimum time quantum to 1282 * run, see if we can switch it out. 1283 */ 1284 if ((softc->flags & CD_FLAG_ACTIVE) 1285 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1286 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1287 /* 1288 * We try three things here. The first is that we 1289 * check to see whether the schedule on completion 1290 * flag is set. If it is, we decrement the number 1291 * of buffers left, and if it's zero, we reschedule. 1292 * Next, we check to see whether the pending buffer 1293 * queue is empty and whether there are no 1294 * outstanding transactions. If so, we reschedule. 1295 * Next, we see if the pending buffer queue is empty. 1296 * If it is, we set the number of buffers left to 1297 * the current active buffer count and set the 1298 * schedule on complete flag. 1299 */ 1300 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1301 if (--softc->bufs_left == 0) { 1302 softc->changer->flags |= 1303 CHANGER_MANUAL_CALL; 1304 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1305 cdrunchangerqueue(softc->changer); 1306 } 1307 } else if ((bioq_first(&softc->bio_queue) == NULL) 1308 && (softc->outstanding_cmds == 0)) { 1309 softc->changer->flags |= CHANGER_MANUAL_CALL; 1310 cdrunchangerqueue(softc->changer); 1311 } 1312 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1313 && (softc->flags & CD_FLAG_ACTIVE)) { 1314 1315 /* 1316 * Now that the first transaction to this 1317 * particular device has completed, we can go ahead 1318 * and schedule our timeouts. 1319 */ 1320 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1321 callout_reset(&changer->long_handle, 1322 changer_max_busy_seconds * hz, 1323 cdrunchangerqueue, changer); 1324 changer->flags |= CHANGER_TIMEOUT_SCHED; 1325 } else 1326 kprintf("cdchangerschedule: already have a long" 1327 " timeout!\n"); 1328 1329 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1330 callout_reset(&changer->short_handle, 1331 changer_min_busy_seconds * hz, 1332 cdshorttimeout, changer); 1333 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1334 } else 1335 kprintf("cdchangerschedule: already have a short " 1336 "timeout!\n"); 1337 1338 /* 1339 * We just scheduled timeouts, no need to schedule 1340 * more. 1341 */ 1342 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1343 1344 } 1345 } 1346 1347 static int 1348 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1349 u_int32_t cam_flags, 1350 u_int32_t sense_flags), 1351 u_int32_t cam_flags, u_int32_t sense_flags) 1352 { 1353 struct cd_softc *softc; 1354 struct cam_periph *periph; 1355 int error; 1356 1357 periph = xpt_path_periph(ccb->ccb_h.path); 1358 softc = (struct cd_softc *)periph->softc; 1359 1360 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1361 &softc->device_stats); 1362 1363 if (softc->flags & CD_FLAG_CHANGER) 1364 cdchangerschedule(softc); 1365 1366 return(error); 1367 } 1368 1369 static union ccb * 1370 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1371 { 1372 struct cd_softc *softc; 1373 static union ccb *ccb; 1374 1375 softc = (struct cd_softc *)periph->softc; 1376 1377 if (softc->flags & CD_FLAG_CHANGER) { 1378 /* 1379 * This should work the first time this device is woken up, 1380 * but just in case it doesn't, we use a while loop. 1381 */ 1382 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1383 /* 1384 * If this changer isn't already queued, queue it up. 1385 */ 1386 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1387 softc->pinfo.priority = 1; 1388 softc->pinfo.generation = 1389 ++softc->changer->devq.generation; 1390 camq_insert(&softc->changer->devq, 1391 (cam_pinfo *)softc); 1392 } 1393 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1394 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1395 && ((softc->changer->flags 1396 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1397 softc->changer->flags |= CHANGER_MANUAL_CALL; 1398 cdrunchangerqueue(softc->changer); 1399 } else 1400 sim_lock_sleep(&softc->changer, 0, "cgticb", 0, 1401 periph->sim->lock); 1402 } 1403 } 1404 ccb = cam_periph_getccb(periph, priority); 1405 ccb->ccb_h.ccb_state = CD_CCB_POLLED; 1406 1407 return ccb; 1408 } 1409 1410 /* 1411 * Actually translate the requested transfer into one the physical driver 1412 * can understand. The transfer is described by a buf and will include 1413 * only one physical transfer. 1414 */ 1415 static int 1416 cdstrategy(struct dev_strategy_args *ap) 1417 { 1418 cdev_t dev = ap->a_head.a_dev; 1419 struct bio *bio = ap->a_bio; 1420 struct buf *bp = bio->bio_buf; 1421 struct cam_periph *periph; 1422 struct cd_softc *softc; 1423 u_int unit; 1424 1425 unit = dkunit(dev); 1426 periph = cam_extend_get(cdperiphs, unit); 1427 if (periph == NULL) { 1428 bp->b_error = ENXIO; 1429 goto bad; 1430 } 1431 1432 cam_periph_lock(periph); 1433 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1434 1435 softc = (struct cd_softc *)periph->softc; 1436 1437 /* 1438 * If the device has been made invalid, error out 1439 */ 1440 if ((softc->flags & CD_FLAG_INVALID)) { 1441 cam_periph_unlock(periph); 1442 bp->b_error = ENXIO; 1443 goto bad; 1444 } 1445 1446 /* 1447 * If we don't have valid media, look for it before trying to 1448 * schedule the I/O. 1449 */ 1450 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) { 1451 int error; 1452 1453 error = cdcheckmedia(periph); 1454 if (error != 0) { 1455 cam_periph_unlock(periph); 1456 bp->b_error = error; 1457 goto bad; 1458 } 1459 } 1460 1461 /* 1462 * Place it in the queue of disk activities for this disk 1463 */ 1464 bioqdisksort(&softc->bio_queue, bio); 1465 1466 /* 1467 * Schedule ourselves for performing the work. We do things 1468 * differently for changers. 1469 */ 1470 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1471 xpt_schedule(periph, /* XXX priority */1); 1472 else 1473 cdschedule(periph, /* priority */ 1); 1474 1475 cam_periph_unlock(periph); 1476 return(0); 1477 bad: 1478 bp->b_flags |= B_ERROR; 1479 /* 1480 * Correctly set the buf to indicate a completed xfer 1481 */ 1482 bp->b_resid = bp->b_bcount; 1483 biodone(bio); 1484 return(0); 1485 } 1486 1487 static void 1488 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1489 { 1490 struct cd_softc *softc; 1491 struct bio *bio; 1492 struct buf *bp; 1493 struct ccb_scsiio *csio; 1494 struct scsi_read_capacity_data *rcap; 1495 1496 softc = (struct cd_softc *)periph->softc; 1497 1498 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1499 1500 switch (softc->state) { 1501 case CD_STATE_NORMAL: 1502 { 1503 bio = bioq_first(&softc->bio_queue); 1504 if (periph->immediate_priority <= periph->pinfo.priority) { 1505 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1506 1507 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1508 periph_links.sle); 1509 periph->immediate_priority = CAM_PRIORITY_NONE; 1510 wakeup(&periph->ccb_list); 1511 } else if (bio == NULL) { 1512 xpt_release_ccb(start_ccb); 1513 } else { 1514 bp = bio->bio_buf; 1515 bioq_remove(&softc->bio_queue, bio); 1516 1517 devstat_start_transaction(&softc->device_stats); 1518 1519 KKASSERT(bio->bio_offset % softc->params.blksize == 0); 1520 1521 scsi_read_write(&start_ccb->csio, 1522 /*retries*/4, 1523 /* cbfcnp */ cddone, 1524 MSG_SIMPLE_Q_TAG, 1525 /* read */(bp->b_cmd == BUF_CMD_READ), 1526 /* byte2 */ 0, 1527 /* minimum_cmd_size */ 10, 1528 /* lba */ 1529 bio->bio_offset / softc->params.blksize, 1530 bp->b_bcount / softc->params.blksize, 1531 /* data_ptr */ bp->b_data, 1532 /* dxfer_len */ bp->b_bcount, 1533 /* sense_len */ SSD_FULL_SIZE, 1534 /* timeout */ 30000); 1535 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1536 1537 1538 LIST_INSERT_HEAD(&softc->pending_ccbs, 1539 &start_ccb->ccb_h, periph_links.le); 1540 1541 softc->outstanding_cmds++; 1542 /* We expect a unit attention from this device */ 1543 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1544 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1545 softc->flags &= ~CD_FLAG_RETRY_UA; 1546 } 1547 1548 start_ccb->ccb_h.ccb_bio = bio; 1549 bio = bioq_first(&softc->bio_queue); 1550 1551 xpt_action(start_ccb); 1552 } 1553 if (bio != NULL) { 1554 /* Have more work to do, so ensure we stay scheduled */ 1555 xpt_schedule(periph, /* XXX priority */1); 1556 } 1557 break; 1558 } 1559 case CD_STATE_PROBE: 1560 { 1561 1562 rcap = kmalloc(sizeof(*rcap), M_SCSICD, M_INTWAIT); 1563 csio = &start_ccb->csio; 1564 scsi_read_capacity(csio, 1565 /*retries*/1, 1566 cddone, 1567 MSG_SIMPLE_Q_TAG, 1568 rcap, 1569 SSD_FULL_SIZE, 1570 /*timeout*/20000); 1571 start_ccb->ccb_h.ccb_bio = NULL; 1572 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1573 xpt_action(start_ccb); 1574 break; 1575 } 1576 } 1577 } 1578 1579 static void 1580 cddone(struct cam_periph *periph, union ccb *done_ccb) 1581 { 1582 struct cd_softc *softc; 1583 struct ccb_scsiio *csio; 1584 1585 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1586 1587 softc = (struct cd_softc *)periph->softc; 1588 csio = &done_ccb->csio; 1589 1590 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1591 case CD_CCB_BUFFER_IO: 1592 { 1593 struct buf *bp; 1594 struct bio *bio; 1595 int error; 1596 1597 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1598 bp = bio->bio_buf; 1599 error = 0; 1600 1601 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1602 int sf; 1603 1604 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1605 sf = SF_RETRY_UA; 1606 else 1607 sf = 0; 1608 1609 error = cderror(done_ccb, CAM_RETRY_SELTO, sf); 1610 if (error == ERESTART) { 1611 /* 1612 * A retry was scheuled, so 1613 * just return. 1614 */ 1615 return; 1616 } 1617 } 1618 1619 if (error != 0) { 1620 struct bio *q_bio; 1621 struct buf *q_bp; 1622 1623 xpt_print(periph->path, 1624 "cddone: got error %#x back\n", error); 1625 while ((q_bio = bioq_takefirst(&softc->bio_queue)) != NULL) { 1626 q_bp = q_bio->bio_buf; 1627 q_bp->b_resid = q_bp->b_bcount; 1628 q_bp->b_error = EIO; 1629 q_bp->b_flags |= B_ERROR; 1630 biodone(q_bio); 1631 } 1632 bp->b_resid = bp->b_bcount; 1633 bp->b_error = error; 1634 bp->b_flags |= B_ERROR; 1635 cam_release_devq(done_ccb->ccb_h.path, 1636 /*relsim_flags*/0, 1637 /*reduction*/0, 1638 /*timeout*/0, 1639 /*getcount_only*/0); 1640 1641 } else { 1642 bp->b_resid = csio->resid; 1643 bp->b_error = 0; 1644 if (bp->b_resid != 0) { 1645 /* Short transfer ??? */ 1646 bp->b_flags |= B_ERROR; 1647 } 1648 } 1649 1650 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1651 softc->outstanding_cmds--; 1652 1653 if (softc->flags & CD_FLAG_CHANGER) 1654 cdchangerschedule(softc); 1655 1656 devstat_end_transaction_buf(&softc->device_stats, bp); 1657 biodone(bio); 1658 break; 1659 } 1660 case CD_CCB_PROBE: 1661 { 1662 /* 1663 * Currently (9/30/97) the longest possible announce 1664 * buffer is 108 bytes, for the first error case below. 1665 * That is 39 bytes for the basic string, 16 bytes for the 1666 * biggest sense key (hardware error), 52 bytes for the 1667 * text of the largest sense qualifier valid for a CDROM, 1668 * (0x72, 0x03 or 0x04, 0x03), and one byte for the 1669 * null terminating character. To allow for longer strings, 1670 * the announce buffer is 120 bytes. 1671 * 1672 * We need to call disk_setdiskinfo() before the disk 1673 * subsystem will allow any opens. Because additional 1674 * probe code is in cdopen() we do this now whether a CD 1675 * is present or not. 1676 */ 1677 struct scsi_read_capacity_data *rdcap; 1678 struct disk_info info; 1679 char announce_buf[120]; 1680 struct cd_params *cdp; 1681 int doinfo = 0; 1682 1683 cdp = &softc->params; 1684 bzero(&info, sizeof(info)); 1685 info.d_type = DTYPE_SCSI; 1686 info.d_dsflags &= ~DSO_COMPATLABEL; 1687 info.d_dsflags |= DSO_NOLABELS | DSO_COMPATPARTA; 1688 info.d_serialno = xpt_path_serialno(periph->path); 1689 1690 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1691 1692 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1693 cdp->blksize = scsi_4btoul (rdcap->length); 1694 1695 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1696 ksnprintf(announce_buf, sizeof(announce_buf), 1697 "cd present [%lu x %lu byte records]", 1698 cdp->disksize, (u_long)cdp->blksize); 1699 info.d_media_blksize = cdp->blksize; 1700 info.d_media_blocks = cdp->disksize; 1701 doinfo = 1; 1702 } else { 1703 int error; 1704 1705 /* 1706 * Retry any UNIT ATTENTION type errors. They 1707 * are expected at boot. 1708 */ 1709 error = cderror(done_ccb, CAM_RETRY_SELTO, 1710 SF_RETRY_UA | SF_NO_PRINT); 1711 if (error == ERESTART) { 1712 /* 1713 * A retry was scheuled, so 1714 * just return. 1715 */ 1716 return; 1717 } else if (error != 0) { 1718 struct scsi_sense_data *sense; 1719 int asc, ascq; 1720 int sense_key, error_code; 1721 int have_sense; 1722 cam_status status; 1723 struct ccb_getdev *cgd; 1724 1725 /* Don't wedge this device's queue */ 1726 cam_release_devq(done_ccb->ccb_h.path, 1727 /*relsim_flags*/0, 1728 /*reduction*/0, 1729 /*timeout*/0, 1730 /*getcount_only*/0); 1731 1732 status = done_ccb->ccb_h.status; 1733 1734 cgd = &xpt_alloc_ccb()->cgd; 1735 xpt_setup_ccb(&cgd->ccb_h, 1736 done_ccb->ccb_h.path, 1737 /* priority */ 1); 1738 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 1739 xpt_action((union ccb *)cgd); 1740 1741 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1742 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1743 || ((status & CAM_AUTOSNS_VALID) == 0)) 1744 have_sense = FALSE; 1745 else 1746 have_sense = TRUE; 1747 1748 if (have_sense) { 1749 sense = &csio->sense_data; 1750 scsi_extract_sense(sense, &error_code, 1751 &sense_key, 1752 &asc, &ascq); 1753 } 1754 /* 1755 * Attach to anything that claims to be a 1756 * CDROM or WORM device, as long as it 1757 * doesn't return a "Logical unit not 1758 * supported" (0x25) error. 1759 */ 1760 if ((have_sense) && (asc != 0x25) 1761 && (error_code == SSD_CURRENT_ERROR)) { 1762 const char *sense_key_desc; 1763 const char *asc_desc; 1764 1765 scsi_sense_desc(sense_key, asc, ascq, 1766 &cgd->inq_data, 1767 &sense_key_desc, 1768 &asc_desc); 1769 ksnprintf(announce_buf, 1770 sizeof(announce_buf), 1771 "Attempt to query device " 1772 "size failed: %s, %s", 1773 sense_key_desc, 1774 asc_desc); 1775 info.d_media_blksize = 2048; 1776 doinfo = 1; 1777 } else if (SID_TYPE(&cgd->inq_data) == T_CDROM) { 1778 /* 1779 * We only print out an error for 1780 * CDROM type devices. For WORM 1781 * devices, we don't print out an 1782 * error since a few WORM devices 1783 * don't support CDROM commands. 1784 * If we have sense information, go 1785 * ahead and print it out. 1786 * Otherwise, just say that we 1787 * couldn't attach. 1788 */ 1789 1790 /* 1791 * Just print out the error, not 1792 * the full probe message, when we 1793 * don't attach. 1794 */ 1795 if (have_sense) 1796 scsi_sense_print( 1797 &done_ccb->csio); 1798 else { 1799 xpt_print(periph->path, 1800 "got CAM status %#x\n", 1801 done_ccb->ccb_h.status); 1802 } 1803 xpt_print(periph->path, "fatal error, " 1804 "failed to attach to device\n"); 1805 /* 1806 * Invalidate this peripheral. 1807 */ 1808 cam_periph_invalidate(periph); 1809 1810 announce_buf[0] = '\0'; 1811 } else { 1812 1813 /* 1814 * Invalidate this peripheral. 1815 */ 1816 cam_periph_invalidate(periph); 1817 announce_buf[0] = '\0'; 1818 } 1819 xpt_free_ccb(&cgd->ccb_h); 1820 } 1821 } 1822 kfree(rdcap, M_SCSICD); 1823 if (announce_buf[0] != '\0') { 1824 xpt_announce_periph(periph, announce_buf); 1825 if (softc->flags & CD_FLAG_CHANGER) 1826 cdchangerschedule(softc); 1827 /* 1828 * Create our sysctl variables, now that we know 1829 * we have successfully attached. 1830 */ 1831 taskqueue_enqueue(taskqueue_thread[mycpuid], 1832 &softc->sysctl_task); 1833 } 1834 softc->state = CD_STATE_NORMAL; 1835 /* 1836 * Since our peripheral may be invalidated by an error 1837 * above or an external event, we must release our CCB 1838 * before releasing the probe lock on the peripheral. 1839 * The peripheral will only go away once the last lock 1840 * is removed, and we need it around for the CCB release 1841 * operation. 1842 */ 1843 xpt_release_ccb(done_ccb); 1844 cam_periph_unhold(periph, 0); 1845 if (doinfo) { 1846 disk_setdiskinfo(&softc->disk, &info); 1847 } 1848 return; 1849 } 1850 case CD_CCB_WAITING: 1851 { 1852 /* Caller will release the CCB */ 1853 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1854 ("trying to wakeup ccbwait\n")); 1855 1856 wakeup(&done_ccb->ccb_h.cbfcnp); 1857 return; 1858 } 1859 case CD_CCB_POLLED: 1860 /* Caller releases CCB */ 1861 wakeup(&done_ccb->ccb_h.cbfcnp); 1862 return; 1863 default: 1864 break; 1865 } 1866 xpt_release_ccb(done_ccb); 1867 } 1868 1869 static union cd_pages * 1870 cdgetpage(struct cd_mode_params *mode_params) 1871 { 1872 union cd_pages *page; 1873 1874 if (mode_params->cdb_size == 10) 1875 page = (union cd_pages *)find_mode_page_10( 1876 (struct scsi_mode_header_10 *)mode_params->mode_buf); 1877 else 1878 page = (union cd_pages *)find_mode_page_6( 1879 (struct scsi_mode_header_6 *)mode_params->mode_buf); 1880 1881 return (page); 1882 } 1883 1884 static int 1885 cdgetpagesize(int page_num) 1886 { 1887 int i; 1888 1889 for (i = 0; i < NELEM(cd_page_size_table); i++) { 1890 if (cd_page_size_table[i].page == page_num) 1891 return (cd_page_size_table[i].page_size); 1892 } 1893 return (-1); 1894 } 1895 1896 static int 1897 cdioctl(struct dev_ioctl_args *ap) 1898 { 1899 cdev_t dev = ap->a_head.a_dev; 1900 caddr_t addr = ap->a_data; 1901 struct cam_periph *periph; 1902 struct cd_softc *softc; 1903 int unit, error = 0; 1904 1905 unit = dkunit(dev); 1906 1907 periph = cam_extend_get(cdperiphs, unit); 1908 if (periph == NULL) 1909 return(ENXIO); 1910 1911 cam_periph_lock(periph); 1912 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1913 1914 softc = (struct cd_softc *)periph->softc; 1915 1916 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1917 ("trying to do ioctl %#lx\n", ap->a_cmd)); 1918 1919 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 1920 cam_periph_unlock(periph); 1921 cam_periph_release(periph); 1922 return (error); 1923 } 1924 1925 /* 1926 * If we don't have media loaded, check for it. If still don't 1927 * have media loaded, we can only do a load or eject. 1928 * 1929 * We only care whether media is loaded if this is a cd-specific ioctl 1930 * (thus the IOCGROUP check below). Note that this will break if 1931 * anyone adds any ioctls into the switch statement below that don't 1932 * have their ioctl group set to 'c'. 1933 */ 1934 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0) 1935 && ((ap->a_cmd != CDIOCCLOSE) 1936 && (ap->a_cmd != CDIOCEJECT)) 1937 && (IOCGROUP(ap->a_cmd) == 'c')) { 1938 error = cdcheckmedia(periph); 1939 if (error != 0) { 1940 cam_periph_unhold(periph, 1); 1941 return (error); 1942 } 1943 } 1944 /* 1945 * Drop the lock here so later mallocs can use WAITOK. The periph 1946 * is essentially locked still with the cam_periph_hold call above. 1947 */ 1948 cam_periph_unlock(periph); 1949 1950 switch (ap->a_cmd) { 1951 1952 case CDIOCPLAYTRACKS: 1953 { 1954 struct ioc_play_track *args 1955 = (struct ioc_play_track *)addr; 1956 struct cd_mode_params params; 1957 union cd_pages *page; 1958 1959 params.alloc_len = sizeof(union cd_mode_data_6_10); 1960 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 1961 M_WAITOK | M_ZERO); 1962 1963 cam_periph_lock(periph); 1964 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1965 ("trying to do CDIOCPLAYTRACKS\n")); 1966 1967 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 1968 if (error) { 1969 kfree(params.mode_buf, M_SCSICD); 1970 cam_periph_unlock(periph); 1971 break; 1972 } 1973 page = cdgetpage(¶ms); 1974 1975 page->audio.flags &= ~CD_PA_SOTC; 1976 page->audio.flags |= CD_PA_IMMED; 1977 error = cdsetmode(periph, ¶ms); 1978 kfree(params.mode_buf, M_SCSICD); 1979 if (error) { 1980 cam_periph_unlock(periph); 1981 break; 1982 } 1983 1984 /* 1985 * This was originally implemented with the PLAY 1986 * AUDIO TRACK INDEX command, but that command was 1987 * deprecated after SCSI-2. Most (all?) SCSI CDROM 1988 * drives support it but ATAPI and ATAPI-derivative 1989 * drives don't seem to support it. So we keep a 1990 * cache of the table of contents and translate 1991 * track numbers to MSF format. 1992 */ 1993 if (softc->flags & CD_FLAG_VALID_TOC) { 1994 union msf_lba *sentry, *eentry; 1995 int st, et; 1996 1997 if (args->end_track < 1998 softc->toc.header.ending_track + 1) 1999 args->end_track++; 2000 if (args->end_track > 2001 softc->toc.header.ending_track + 1) 2002 args->end_track = 2003 softc->toc.header.ending_track + 1; 2004 st = args->start_track - 2005 softc->toc.header.starting_track; 2006 et = args->end_track - 2007 softc->toc.header.starting_track; 2008 if ((st < 0) 2009 || (et < 0) 2010 || (st > (softc->toc.header.ending_track - 2011 softc->toc.header.starting_track))) { 2012 error = EINVAL; 2013 break; 2014 } 2015 sentry = &softc->toc.entries[st].addr; 2016 eentry = &softc->toc.entries[et].addr; 2017 error = cdplaymsf(periph, 2018 sentry->msf.minute, 2019 sentry->msf.second, 2020 sentry->msf.frame, 2021 eentry->msf.minute, 2022 eentry->msf.second, 2023 eentry->msf.frame); 2024 } else { 2025 /* 2026 * If we don't have a valid TOC, try the 2027 * play track index command. It is part of 2028 * the SCSI-2 spec, but was removed in the 2029 * MMC specs. ATAPI and ATAPI-derived 2030 * drives don't support it. 2031 */ 2032 if (softc->quirks & CD_Q_BCD_TRACKS) { 2033 args->start_track = 2034 bin2bcd(args->start_track); 2035 args->end_track = 2036 bin2bcd(args->end_track); 2037 } 2038 error = cdplaytracks(periph, 2039 args->start_track, 2040 args->start_index, 2041 args->end_track, 2042 args->end_index); 2043 } 2044 cam_periph_unlock(periph); 2045 } 2046 break; 2047 case CDIOCPLAYMSF: 2048 { 2049 struct ioc_play_msf *args 2050 = (struct ioc_play_msf *) addr; 2051 struct cd_mode_params params; 2052 union cd_pages *page; 2053 2054 params.alloc_len = sizeof(union cd_mode_data_6_10); 2055 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2056 M_WAITOK | M_ZERO); 2057 2058 cam_periph_lock(periph); 2059 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2060 ("trying to do CDIOCPLAYMSF\n")); 2061 2062 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2063 if (error) { 2064 kfree(params.mode_buf, M_SCSICD); 2065 cam_periph_unlock(periph); 2066 break; 2067 } 2068 page = cdgetpage(¶ms); 2069 2070 page->audio.flags &= ~CD_PA_SOTC; 2071 page->audio.flags |= CD_PA_IMMED; 2072 error = cdsetmode(periph, ¶ms); 2073 kfree(params.mode_buf, M_SCSICD); 2074 if (error) { 2075 cam_periph_unlock(periph); 2076 break; 2077 } 2078 error = cdplaymsf(periph, 2079 args->start_m, 2080 args->start_s, 2081 args->start_f, 2082 args->end_m, 2083 args->end_s, 2084 args->end_f); 2085 cam_periph_unlock(periph); 2086 } 2087 break; 2088 case CDIOCPLAYBLOCKS: 2089 { 2090 struct ioc_play_blocks *args 2091 = (struct ioc_play_blocks *) addr; 2092 struct cd_mode_params params; 2093 union cd_pages *page; 2094 2095 params.alloc_len = sizeof(union cd_mode_data_6_10); 2096 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2097 M_WAITOK | M_ZERO); 2098 cam_periph_lock(periph); 2099 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2100 ("trying to do CDIOCPLAYBLOCKS\n")); 2101 2102 2103 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2104 if (error) { 2105 kfree(params.mode_buf, M_SCSICD); 2106 cam_periph_unlock(periph); 2107 break; 2108 } 2109 page = cdgetpage(¶ms); 2110 2111 page->audio.flags &= ~CD_PA_SOTC; 2112 page->audio.flags |= CD_PA_IMMED; 2113 error = cdsetmode(periph, ¶ms); 2114 kfree(params.mode_buf, M_SCSICD); 2115 if (error) { 2116 cam_periph_unlock(periph); 2117 break; 2118 } 2119 error = cdplay(periph, args->blk, args->len); 2120 cam_periph_unlock(periph); 2121 } 2122 break; 2123 case CDIOCREADSUBCHANNEL: 2124 { 2125 struct ioc_read_subchannel *args 2126 = (struct ioc_read_subchannel *) addr; 2127 struct cd_sub_channel_info *data; 2128 u_int32_t len = args->data_len; 2129 2130 data = kmalloc(sizeof(struct cd_sub_channel_info), 2131 M_SCSICD, M_WAITOK); 2132 2133 cam_periph_lock(periph); 2134 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2135 ("trying to do CDIOCREADSUBCHANNEL\n")); 2136 2137 if ((len > sizeof(struct cd_sub_channel_info)) || 2138 (len < sizeof(struct cd_sub_channel_header))) { 2139 kprintf( 2140 "scsi_cd: cdioctl: " 2141 "cdioreadsubchannel: error, len=%d\n", 2142 len); 2143 error = EINVAL; 2144 kfree(data, M_SCSICD); 2145 cam_periph_unlock(periph); 2146 break; 2147 } 2148 2149 if (softc->quirks & CD_Q_BCD_TRACKS) 2150 args->track = bin2bcd(args->track); 2151 2152 error = cdreadsubchannel(periph, args->address_format, 2153 args->data_format, args->track, data, len); 2154 2155 if (error) { 2156 kfree(data, M_SCSICD); 2157 cam_periph_unlock(periph); 2158 break; 2159 } 2160 if (softc->quirks & CD_Q_BCD_TRACKS) 2161 data->what.track_info.track_number = 2162 bcd2bin(data->what.track_info.track_number); 2163 len = min(len, ((data->header.data_len[0] << 8) + 2164 data->header.data_len[1] + 2165 sizeof(struct cd_sub_channel_header))); 2166 cam_periph_unlock(periph); 2167 if (copyout(data, args->data, len) != 0) { 2168 error = EFAULT; 2169 } 2170 kfree(data, M_SCSICD); 2171 } 2172 break; 2173 2174 case CDIOREADTOCHEADER: 2175 { 2176 struct ioc_toc_header *th; 2177 2178 th = kmalloc(sizeof(struct ioc_toc_header), M_SCSICD, 2179 M_WAITOK); 2180 2181 cam_periph_lock(periph); 2182 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2183 ("trying to do CDIOREADTOCHEADER\n")); 2184 2185 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2186 sizeof (*th), /*sense_flags*/0); 2187 if (error) { 2188 kfree(th, M_SCSICD); 2189 cam_periph_unlock(periph); 2190 break; 2191 } 2192 if (softc->quirks & CD_Q_BCD_TRACKS) { 2193 /* we are going to have to convert the BCD 2194 * encoding on the cd to what is expected 2195 */ 2196 th->starting_track = 2197 bcd2bin(th->starting_track); 2198 th->ending_track = bcd2bin(th->ending_track); 2199 } 2200 th->len = ntohs(th->len); 2201 bcopy(th, addr, sizeof(*th)); 2202 kfree(th, M_SCSICD); 2203 cam_periph_unlock(periph); 2204 } 2205 break; 2206 case CDIOREADTOCENTRYS: 2207 { 2208 struct cd_tocdata *data; 2209 struct cd_toc_single *lead; 2210 struct ioc_read_toc_entry *te = 2211 (struct ioc_read_toc_entry *) addr; 2212 struct ioc_toc_header *th; 2213 u_int32_t len, readlen, idx, num; 2214 u_int32_t starting_track = te->starting_track; 2215 2216 data = kmalloc(sizeof(*data), M_SCSICD, M_WAITOK); 2217 lead = kmalloc(sizeof(*lead), M_SCSICD, M_WAITOK); 2218 2219 cam_periph_lock(periph); 2220 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2221 ("trying to do CDIOREADTOCENTRYS\n")); 2222 2223 if (te->data_len < sizeof(struct cd_toc_entry) 2224 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2225 || (te->address_format != CD_MSF_FORMAT 2226 && te->address_format != CD_LBA_FORMAT)) { 2227 error = EINVAL; 2228 kprintf("scsi_cd: error in readtocentries, " 2229 "returning EINVAL\n"); 2230 kfree(data, M_SCSICD); 2231 kfree(lead, M_SCSICD); 2232 cam_periph_unlock(periph); 2233 break; 2234 } 2235 2236 th = &data->header; 2237 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2238 sizeof (*th), /*sense_flags*/0); 2239 if (error) { 2240 kfree(data, M_SCSICD); 2241 kfree(lead, M_SCSICD); 2242 cam_periph_unlock(periph); 2243 break; 2244 } 2245 2246 if (softc->quirks & CD_Q_BCD_TRACKS) { 2247 /* we are going to have to convert the BCD 2248 * encoding on the cd to what is expected 2249 */ 2250 th->starting_track = 2251 bcd2bin(th->starting_track); 2252 th->ending_track = bcd2bin(th->ending_track); 2253 } 2254 2255 if (starting_track == 0) 2256 starting_track = th->starting_track; 2257 else if (starting_track == LEADOUT) 2258 starting_track = th->ending_track + 1; 2259 else if (starting_track < th->starting_track || 2260 starting_track > th->ending_track + 1) { 2261 kprintf("scsi_cd: error in readtocentries, " 2262 "returning EINVAL\n"); 2263 kfree(data, M_SCSICD); 2264 kfree(lead, M_SCSICD); 2265 cam_periph_unlock(periph); 2266 error = EINVAL; 2267 break; 2268 } 2269 2270 /* calculate reading length without leadout entry */ 2271 readlen = (th->ending_track - starting_track + 1) * 2272 sizeof(struct cd_toc_entry); 2273 2274 /* and with leadout entry */ 2275 len = readlen + sizeof(struct cd_toc_entry); 2276 if (te->data_len < len) { 2277 len = te->data_len; 2278 if (readlen > len) 2279 readlen = len; 2280 } 2281 if (len > sizeof(data->entries)) { 2282 kprintf("scsi_cd: error in readtocentries, " 2283 "returning EINVAL\n"); 2284 error = EINVAL; 2285 kfree(data, M_SCSICD); 2286 kfree(lead, M_SCSICD); 2287 cam_periph_unlock(periph); 2288 break; 2289 } 2290 num = len / sizeof(struct cd_toc_entry); 2291 2292 if (readlen > 0) { 2293 error = cdreadtoc(periph, te->address_format, 2294 starting_track, 2295 (u_int8_t *)data, 2296 readlen + sizeof (*th), 2297 /*sense_flags*/0); 2298 if (error) { 2299 kfree(data, M_SCSICD); 2300 kfree(lead, M_SCSICD); 2301 cam_periph_unlock(periph); 2302 break; 2303 } 2304 } 2305 2306 /* make leadout entry if needed */ 2307 idx = starting_track + num - 1; 2308 if (softc->quirks & CD_Q_BCD_TRACKS) 2309 th->ending_track = bcd2bin(th->ending_track); 2310 if (idx == th->ending_track + 1) { 2311 error = cdreadtoc(periph, te->address_format, 2312 LEADOUT, (u_int8_t *)lead, 2313 sizeof(*lead), 2314 /*sense_flags*/0); 2315 if (error) { 2316 kfree(data, M_SCSICD); 2317 kfree(lead, M_SCSICD); 2318 cam_periph_unlock(periph); 2319 break; 2320 } 2321 data->entries[idx - starting_track] = 2322 lead->entry; 2323 } 2324 if (softc->quirks & CD_Q_BCD_TRACKS) { 2325 for (idx = 0; idx < num - 1; idx++) { 2326 data->entries[idx].track = 2327 bcd2bin(data->entries[idx].track); 2328 } 2329 } 2330 2331 cam_periph_unlock(periph); 2332 error = copyout(data->entries, te->data, len); 2333 kfree(data, M_SCSICD); 2334 kfree(lead, M_SCSICD); 2335 } 2336 break; 2337 case CDIOREADTOCENTRY: 2338 { 2339 struct cd_toc_single *data; 2340 struct ioc_read_toc_single_entry *te = 2341 (struct ioc_read_toc_single_entry *) addr; 2342 struct ioc_toc_header *th; 2343 u_int32_t track; 2344 2345 data = kmalloc(sizeof(*data), M_SCSICD, M_WAITOK); 2346 2347 cam_periph_lock(periph); 2348 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2349 ("trying to do CDIOREADTOCENTRY\n")); 2350 2351 if (te->address_format != CD_MSF_FORMAT 2352 && te->address_format != CD_LBA_FORMAT) { 2353 kprintf("error in readtocentry, " 2354 " returning EINVAL\n"); 2355 kfree(data, M_SCSICD); 2356 error = EINVAL; 2357 cam_periph_unlock(periph); 2358 break; 2359 } 2360 2361 th = &data->header; 2362 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th, 2363 sizeof (*th), /*sense_flags*/0); 2364 if (error) { 2365 kfree(data, M_SCSICD); 2366 cam_periph_unlock(periph); 2367 break; 2368 } 2369 2370 if (softc->quirks & CD_Q_BCD_TRACKS) { 2371 /* we are going to have to convert the BCD 2372 * encoding on the cd to what is expected 2373 */ 2374 th->starting_track = 2375 bcd2bin(th->starting_track); 2376 th->ending_track = bcd2bin(th->ending_track); 2377 } 2378 track = te->track; 2379 if (track == 0) 2380 track = th->starting_track; 2381 else if (track == LEADOUT) 2382 /* OK */; 2383 else if (track < th->starting_track || 2384 track > th->ending_track + 1) { 2385 kprintf("error in readtocentry, " 2386 " returning EINVAL\n"); 2387 kfree(data, M_SCSICD); 2388 error = EINVAL; 2389 cam_periph_unlock(periph); 2390 break; 2391 } 2392 2393 error = cdreadtoc(periph, te->address_format, track, 2394 (u_int8_t *)data, sizeof(*data), 2395 /*sense_flags*/0); 2396 if (error) { 2397 kfree(data, M_SCSICD); 2398 cam_periph_unlock(periph); 2399 break; 2400 } 2401 2402 if (softc->quirks & CD_Q_BCD_TRACKS) 2403 data->entry.track = bcd2bin(data->entry.track); 2404 bcopy(&data->entry, &te->entry, 2405 sizeof(struct cd_toc_entry)); 2406 kfree(data, M_SCSICD); 2407 cam_periph_unlock(periph); 2408 } 2409 break; 2410 case CDIOCSETPATCH: 2411 { 2412 struct ioc_patch *arg = (struct ioc_patch *)addr; 2413 struct cd_mode_params params; 2414 union cd_pages *page; 2415 2416 params.alloc_len = sizeof(union cd_mode_data_6_10); 2417 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2418 M_WAITOK | M_ZERO); 2419 2420 cam_periph_lock(periph); 2421 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2422 ("trying to do CDIOCSETPATCH\n")); 2423 2424 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2425 if (error) { 2426 kfree(params.mode_buf, M_SCSICD); 2427 cam_periph_unlock(periph); 2428 break; 2429 } 2430 page = cdgetpage(¶ms); 2431 2432 page->audio.port[LEFT_PORT].channels = 2433 arg->patch[0]; 2434 page->audio.port[RIGHT_PORT].channels = 2435 arg->patch[1]; 2436 page->audio.port[2].channels = arg->patch[2]; 2437 page->audio.port[3].channels = arg->patch[3]; 2438 error = cdsetmode(periph, ¶ms); 2439 kfree(params.mode_buf, M_SCSICD); 2440 cam_periph_unlock(periph); 2441 } 2442 break; 2443 case CDIOCGETVOL: 2444 { 2445 struct ioc_vol *arg = (struct ioc_vol *) addr; 2446 struct cd_mode_params params; 2447 union cd_pages *page; 2448 2449 params.alloc_len = sizeof(union cd_mode_data_6_10); 2450 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2451 M_WAITOK | M_ZERO); 2452 2453 cam_periph_lock(periph); 2454 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2455 ("trying to do CDIOCGETVOL\n")); 2456 2457 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2458 if (error) { 2459 kfree(params.mode_buf, M_SCSICD); 2460 cam_periph_unlock(periph); 2461 break; 2462 } 2463 page = cdgetpage(¶ms); 2464 2465 arg->vol[LEFT_PORT] = 2466 page->audio.port[LEFT_PORT].volume; 2467 arg->vol[RIGHT_PORT] = 2468 page->audio.port[RIGHT_PORT].volume; 2469 arg->vol[2] = page->audio.port[2].volume; 2470 arg->vol[3] = page->audio.port[3].volume; 2471 kfree(params.mode_buf, M_SCSICD); 2472 cam_periph_unlock(periph); 2473 } 2474 break; 2475 case CDIOCSETVOL: 2476 { 2477 struct ioc_vol *arg = (struct ioc_vol *) addr; 2478 struct cd_mode_params params; 2479 union cd_pages *page; 2480 2481 params.alloc_len = sizeof(union cd_mode_data_6_10); 2482 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2483 M_WAITOK | M_ZERO); 2484 2485 cam_periph_lock(periph); 2486 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2487 ("trying to do CDIOCSETVOL\n")); 2488 2489 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2490 if (error) { 2491 kfree(params.mode_buf, M_SCSICD); 2492 cam_periph_unlock(periph); 2493 break; 2494 } 2495 page = cdgetpage(¶ms); 2496 2497 page->audio.port[LEFT_PORT].channels = CHANNEL_0; 2498 page->audio.port[LEFT_PORT].volume = 2499 arg->vol[LEFT_PORT]; 2500 page->audio.port[RIGHT_PORT].channels = CHANNEL_1; 2501 page->audio.port[RIGHT_PORT].volume = 2502 arg->vol[RIGHT_PORT]; 2503 page->audio.port[2].volume = arg->vol[2]; 2504 page->audio.port[3].volume = arg->vol[3]; 2505 error = cdsetmode(periph, ¶ms); 2506 cam_periph_unlock(periph); 2507 kfree(params.mode_buf, M_SCSICD); 2508 } 2509 break; 2510 case CDIOCSETMONO: 2511 { 2512 struct cd_mode_params params; 2513 union cd_pages *page; 2514 2515 params.alloc_len = sizeof(union cd_mode_data_6_10); 2516 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2517 M_WAITOK | M_ZERO); 2518 2519 cam_periph_lock(periph); 2520 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2521 ("trying to do CDIOCSETMONO\n")); 2522 2523 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2524 if (error) { 2525 kfree(params.mode_buf, M_SCSICD); 2526 cam_periph_unlock(periph); 2527 break; 2528 } 2529 page = cdgetpage(¶ms); 2530 2531 page->audio.port[LEFT_PORT].channels = 2532 LEFT_CHANNEL | RIGHT_CHANNEL; 2533 page->audio.port[RIGHT_PORT].channels = 2534 LEFT_CHANNEL | RIGHT_CHANNEL; 2535 page->audio.port[2].channels = 0; 2536 page->audio.port[3].channels = 0; 2537 error = cdsetmode(periph, ¶ms); 2538 cam_periph_unlock(periph); 2539 kfree(params.mode_buf, M_SCSICD); 2540 } 2541 break; 2542 case CDIOCSETSTEREO: 2543 { 2544 struct cd_mode_params params; 2545 union cd_pages *page; 2546 2547 params.alloc_len = sizeof(union cd_mode_data_6_10); 2548 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2549 M_WAITOK | M_ZERO); 2550 2551 cam_periph_lock(periph); 2552 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2553 ("trying to do CDIOCSETSTEREO\n")); 2554 2555 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2556 if (error) { 2557 kfree(params.mode_buf, M_SCSICD); 2558 cam_periph_unlock(periph); 2559 break; 2560 } 2561 page = cdgetpage(¶ms); 2562 2563 page->audio.port[LEFT_PORT].channels = 2564 LEFT_CHANNEL; 2565 page->audio.port[RIGHT_PORT].channels = 2566 RIGHT_CHANNEL; 2567 page->audio.port[2].channels = 0; 2568 page->audio.port[3].channels = 0; 2569 error = cdsetmode(periph, ¶ms); 2570 kfree(params.mode_buf, M_SCSICD); 2571 cam_periph_unlock(periph); 2572 } 2573 break; 2574 case CDIOCSETMUTE: 2575 { 2576 struct cd_mode_params params; 2577 union cd_pages *page; 2578 2579 params.alloc_len = sizeof(union cd_mode_data_6_10); 2580 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2581 M_WAITOK | M_ZERO); 2582 2583 cam_periph_lock(periph); 2584 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2585 ("trying to do CDIOCSETMUTE\n")); 2586 2587 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2588 if (error) { 2589 kfree(¶ms, M_SCSICD); 2590 cam_periph_unlock(periph); 2591 break; 2592 } 2593 page = cdgetpage(¶ms); 2594 2595 page->audio.port[LEFT_PORT].channels = 0; 2596 page->audio.port[RIGHT_PORT].channels = 0; 2597 page->audio.port[2].channels = 0; 2598 page->audio.port[3].channels = 0; 2599 error = cdsetmode(periph, ¶ms); 2600 kfree(params.mode_buf, M_SCSICD); 2601 cam_periph_unlock(periph); 2602 } 2603 break; 2604 case CDIOCSETLEFT: 2605 { 2606 struct cd_mode_params params; 2607 union cd_pages *page; 2608 2609 params.alloc_len = sizeof(union cd_mode_data_6_10); 2610 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2611 M_WAITOK | M_ZERO); 2612 2613 cam_periph_lock(periph); 2614 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2615 ("trying to do CDIOCSETLEFT\n")); 2616 2617 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2618 if (error) { 2619 kfree(params.mode_buf, M_SCSICD); 2620 cam_periph_unlock(periph); 2621 break; 2622 } 2623 page = cdgetpage(¶ms); 2624 2625 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL; 2626 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; 2627 page->audio.port[2].channels = 0; 2628 page->audio.port[3].channels = 0; 2629 error = cdsetmode(periph, ¶ms); 2630 kfree(params.mode_buf, M_SCSICD); 2631 cam_periph_unlock(periph); 2632 } 2633 break; 2634 case CDIOCSETRIGHT: 2635 { 2636 struct cd_mode_params params; 2637 union cd_pages *page; 2638 2639 params.alloc_len = sizeof(union cd_mode_data_6_10); 2640 params.mode_buf = kmalloc(params.alloc_len, M_SCSICD, 2641 M_WAITOK | M_ZERO); 2642 2643 cam_periph_lock(periph); 2644 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2645 ("trying to do CDIOCSETRIGHT\n")); 2646 2647 error = cdgetmode(periph, ¶ms, AUDIO_PAGE); 2648 if (error) { 2649 kfree(params.mode_buf, M_SCSICD); 2650 cam_periph_unlock(periph); 2651 break; 2652 } 2653 page = cdgetpage(¶ms); 2654 2655 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; 2656 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; 2657 page->audio.port[2].channels = 0; 2658 page->audio.port[3].channels = 0; 2659 error = cdsetmode(periph, ¶ms); 2660 kfree(params.mode_buf, M_SCSICD); 2661 cam_periph_unlock(periph); 2662 } 2663 break; 2664 case CDIOCRESUME: 2665 cam_periph_lock(periph); 2666 error = cdpause(periph, 1); 2667 cam_periph_unlock(periph); 2668 break; 2669 case CDIOCPAUSE: 2670 cam_periph_lock(periph); 2671 error = cdpause(periph, 0); 2672 cam_periph_unlock(periph); 2673 break; 2674 case CDIOCSTART: 2675 cam_periph_lock(periph); 2676 error = cdstartunit(periph, 0); 2677 cam_periph_unlock(periph); 2678 break; 2679 case CDIOCCLOSE: 2680 cam_periph_lock(periph); 2681 error = cdstartunit(periph, 1); 2682 cam_periph_unlock(periph); 2683 break; 2684 case CDIOCSTOP: 2685 cam_periph_lock(periph); 2686 error = cdstopunit(periph, 0); 2687 cam_periph_unlock(periph); 2688 break; 2689 case CDIOCEJECT: 2690 cam_periph_lock(periph); 2691 error = cdstopunit(periph, 1); 2692 cam_periph_unlock(periph); 2693 break; 2694 case CDIOCALLOW: 2695 cam_periph_lock(periph); 2696 cdprevent(periph, PR_ALLOW); 2697 cam_periph_unlock(periph); 2698 break; 2699 case CDIOCPREVENT: 2700 cam_periph_lock(periph); 2701 cdprevent(periph, PR_PREVENT); 2702 cam_periph_unlock(periph); 2703 break; 2704 case CDIOCSETDEBUG: 2705 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2706 error = ENOTTY; 2707 break; 2708 case CDIOCCLRDEBUG: 2709 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2710 error = ENOTTY; 2711 break; 2712 case CDIOCRESET: 2713 /* return (cd_reset(periph)); */ 2714 error = ENOTTY; 2715 break; 2716 case CDRIOCREADSPEED: 2717 cam_periph_lock(periph); 2718 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED); 2719 cam_periph_unlock(periph); 2720 break; 2721 case CDRIOCWRITESPEED: 2722 cam_periph_lock(periph); 2723 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr); 2724 cam_periph_unlock(periph); 2725 break; 2726 case DVDIOCSENDKEY: 2727 case DVDIOCREPORTKEY: { 2728 struct dvd_authinfo *authinfo; 2729 2730 authinfo = (struct dvd_authinfo *)addr; 2731 2732 cam_periph_lock(periph); 2733 if (ap->a_cmd == DVDIOCREPORTKEY) 2734 error = cdreportkey(periph, authinfo); 2735 else 2736 error = cdsendkey(periph, authinfo); 2737 cam_periph_unlock(periph); 2738 break; 2739 } 2740 case DVDIOCREADSTRUCTURE: { 2741 struct dvd_struct *dvdstruct; 2742 2743 dvdstruct = (struct dvd_struct *)addr; 2744 2745 cam_periph_lock(periph); 2746 error = cdreaddvdstructure(periph, dvdstruct); 2747 cam_periph_unlock(periph); 2748 2749 break; 2750 } 2751 default: 2752 cam_periph_lock(periph); 2753 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cderror); 2754 cam_periph_unlock(periph); 2755 break; 2756 } 2757 2758 cam_periph_lock(periph); 2759 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2760 cam_periph_unhold(periph, 1); 2761 2762 return (error); 2763 } 2764 2765 static void 2766 cdprevent(struct cam_periph *periph, int action) 2767 { 2768 union ccb *ccb; 2769 struct cd_softc *softc; 2770 int error; 2771 2772 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2773 2774 softc = (struct cd_softc *)periph->softc; 2775 2776 if (((action == PR_ALLOW) 2777 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2778 || ((action == PR_PREVENT) 2779 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2780 return; 2781 } 2782 2783 ccb = cdgetccb(periph, /* priority */ 1); 2784 2785 scsi_prevent(&ccb->csio, 2786 /*retries*/ 1, 2787 cddone, 2788 MSG_SIMPLE_Q_TAG, 2789 action, 2790 SSD_FULL_SIZE, 2791 /* timeout */60000); 2792 2793 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 2794 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2795 2796 xpt_release_ccb(ccb); 2797 2798 if (error == 0) { 2799 if (action == PR_ALLOW) 2800 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2801 else 2802 softc->flags |= CD_FLAG_DISC_LOCKED; 2803 } 2804 } 2805 2806 static int 2807 cdcheckmedia(struct cam_periph *periph) 2808 { 2809 struct cd_softc *softc; 2810 struct ioc_toc_header *toch; 2811 struct cd_toc_single leadout; 2812 struct ccb_getdev *cgd; 2813 u_int32_t size, toclen; 2814 int error, num_entries, cdindex; 2815 int first_track_audio; 2816 struct disk_info info; 2817 2818 softc = (struct cd_softc *)periph->softc; 2819 2820 first_track_audio = -1; 2821 error = 0; 2822 2823 /* 2824 * Set up disk info fields and tell the disk subsystem to reset 2825 * its internal copy of the label. 2826 */ 2827 bzero(&info, sizeof(info)); 2828 info.d_type = DTYPE_SCSI; 2829 info.d_dsflags &= ~DSO_COMPATLABEL; 2830 info.d_dsflags |= DSO_NOLABELS | DSO_COMPATPARTA; 2831 info.d_serialno = xpt_path_serialno(periph->path); 2832 2833 /* 2834 * Grab the inquiry data to get the vendor and product names. 2835 * Put them in the typename and packname for the label. 2836 */ 2837 cgd = &xpt_alloc_ccb()->cgd; 2838 xpt_setup_ccb(&cgd->ccb_h, periph->path, /*priority*/ 1); 2839 cgd->ccb_h.func_code = XPT_GDEV_TYPE; 2840 xpt_action((union ccb *)cgd); 2841 2842 #if 0 2843 strncpy(label->d_typename, cgd->inq_data.vendor, 2844 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 2845 strncpy(label->d_packname, cgd->inq_data.product, 2846 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 2847 #endif 2848 xpt_free_ccb(&cgd->ccb_h); 2849 2850 /* 2851 * Clear the valid media and TOC flags until we've verified that we 2852 * have both. 2853 */ 2854 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC); 2855 2856 /* 2857 * Get the disc size and block size. If we can't get it, we don't 2858 * have media, most likely. 2859 */ 2860 if ((error = cdsize(periph, &size)) != 0) { 2861 /* 2862 * Set a bogus sector size, so the slice code won't try to 2863 * divide by 0 and panic the kernel. 2864 */ 2865 info.d_media_blksize = 2048; 2866 disk_setdiskinfo(&softc->disk, &info); 2867 2868 /* 2869 * Tell devstat(9) we don't have a blocksize. 2870 */ 2871 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 2872 2873 return (error); 2874 } else { 2875 info.d_media_blksize = softc->params.blksize; 2876 info.d_media_blocks = softc->params.disksize; 2877 disk_setdiskinfo(&softc->disk, &info); 2878 2879 /* 2880 * We unconditionally (re)set the blocksize each time the 2881 * CD device is opened. This is because the CD can change, 2882 * and therefore the blocksize might change. 2883 * XXX problems here if some slice or partition is still 2884 * open with the old size? 2885 */ 2886 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 2887 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 2888 softc->device_stats.block_size = softc->params.blksize; 2889 2890 softc->flags |= CD_FLAG_VALID_MEDIA; 2891 } 2892 2893 /* 2894 * Now we check the table of contents. This (currently) is only 2895 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do 2896 * things like present a separate entry in /dev for each track, 2897 * like that acd(4) driver does. 2898 */ 2899 bzero(&softc->toc, sizeof(softc->toc)); 2900 toch = &softc->toc.header; 2901 2902 /* 2903 * We will get errors here for media that doesn't have a table of 2904 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP 2905 * command is presented for a DDCD/CD-R/RW media, where the first TOC 2906 * has not been recorded (no complete session) and the Format codes 2907 * 0000b, 0001b, or 0010b are specified, this command shall be rejected 2908 * with an INVALID FIELD IN CDB. Devices that are not capable of 2909 * reading an incomplete session on DDC/CD-R/RW media shall report 2910 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT." 2911 * 2912 * So this isn't fatal if we can't read the table of contents, it 2913 * just means that the user won't be able to issue the play tracks 2914 * ioctl, and likely lots of other stuff won't work either. They 2915 * need to burn the CD before we can do a whole lot with it. So 2916 * we don't print anything here if we get an error back. 2917 */ 2918 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch), 2919 SF_NO_PRINT); 2920 /* 2921 * Errors in reading the table of contents aren't fatal, we just 2922 * won't have a valid table of contents cached. 2923 */ 2924 if (error != 0) { 2925 error = 0; 2926 bzero(&softc->toc, sizeof(softc->toc)); 2927 goto bailout; 2928 } 2929 2930 if (softc->quirks & CD_Q_BCD_TRACKS) { 2931 toch->starting_track = bcd2bin(toch->starting_track); 2932 toch->ending_track = bcd2bin(toch->ending_track); 2933 } 2934 2935 /* Number of TOC entries, plus leadout */ 2936 num_entries = (toch->ending_track - toch->starting_track) + 2; 2937 2938 if (num_entries <= 0) 2939 goto bailout; 2940 2941 toclen = num_entries * sizeof(struct cd_toc_entry); 2942 2943 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track, 2944 (u_int8_t *)&softc->toc, toclen + sizeof(*toch), 2945 SF_NO_PRINT); 2946 if (error != 0) { 2947 error = 0; 2948 bzero(&softc->toc, sizeof(softc->toc)); 2949 goto bailout; 2950 } 2951 2952 if (softc->quirks & CD_Q_BCD_TRACKS) { 2953 toch->starting_track = bcd2bin(toch->starting_track); 2954 toch->ending_track = bcd2bin(toch->ending_track); 2955 } 2956 toch->len = scsi_2btoul((uint8_t *)&toch->len); 2957 2958 /* 2959 * XXX KDM is this necessary? Probably only if the drive doesn't 2960 * return leadout information with the table of contents. 2961 */ 2962 cdindex = toch->starting_track + num_entries -1; 2963 if (cdindex == toch->ending_track + 1) { 2964 2965 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT, 2966 (u_int8_t *)&leadout, sizeof(leadout), 2967 SF_NO_PRINT); 2968 if (error != 0) { 2969 error = 0; 2970 goto bailout; 2971 } 2972 softc->toc.entries[cdindex - toch->starting_track] = 2973 leadout.entry; 2974 } 2975 if (softc->quirks & CD_Q_BCD_TRACKS) { 2976 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) { 2977 softc->toc.entries[cdindex].track = 2978 bcd2bin(softc->toc.entries[cdindex].track); 2979 } 2980 } 2981 2982 /* 2983 * Run through the TOC entries, find the first entry and determine 2984 * whether it is an audio or data track. 2985 */ 2986 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) { 2987 if (softc->toc.entries[cdindex].track == toch->starting_track) { 2988 if (softc->toc.entries[cdindex].control & 0x04) 2989 first_track_audio = 0; 2990 else 2991 first_track_audio = 1; 2992 break; 2993 } 2994 } 2995 2996 /* 2997 * If first_track_audio is non-zero, we either have an error (e.g. 2998 * couldn't find the starting track) or the first track is an audio 2999 * track. If first_track_audio is 0, the first track is a data 3000 * track that could have a disklabel. Attempt to read the 3001 * disklabel off the media, just in case the user put one there. 3002 */ 3003 if (first_track_audio == 0) { 3004 info.d_dsflags |= DSO_COMPATLABEL; 3005 info.d_dsflags &= ~DSO_NOLABELS; 3006 disk_setdiskinfo(&softc->disk, &info); 3007 } 3008 softc->flags |= CD_FLAG_VALID_TOC; 3009 3010 bailout: 3011 return (error); 3012 } 3013 3014 static int 3015 cdsize(struct cam_periph *periph, u_int32_t *size) 3016 { 3017 struct cd_softc *softc; 3018 union ccb *ccb; 3019 struct scsi_read_capacity_data *rcap_buf; 3020 int error; 3021 3022 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 3023 3024 softc = (struct cd_softc *)periph->softc; 3025 3026 ccb = cdgetccb(periph, /* priority */ 1); 3027 3028 rcap_buf = kmalloc(sizeof(struct scsi_read_capacity_data), 3029 M_SCSICD, M_INTWAIT | M_ZERO); 3030 3031 scsi_read_capacity(&ccb->csio, 3032 /*retries*/ 1, 3033 cddone, 3034 MSG_SIMPLE_Q_TAG, 3035 rcap_buf, 3036 SSD_FULL_SIZE, 3037 /* timeout */20000); 3038 3039 if (softc->flags & CD_FLAG_CAP_MUTE) 3040 ccb->ccb_h.flags |= CAM_QUIET; 3041 3042 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3043 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 3044 3045 xpt_release_ccb(ccb); 3046 3047 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 3048 softc->params.blksize = scsi_4btoul(rcap_buf->length); 3049 /* 3050 * SCSI-3 mandates that the reported blocksize shall be 2048. 3051 * Older drives sometimes report funny values, trim it down to 3052 * 2048, or other parts of the kernel will get confused. 3053 * 3054 * XXX we leave drives alone that might report 512 bytes, as 3055 * well as drives reporting more weird sizes like perhaps 4K. 3056 */ 3057 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352) 3058 softc->params.blksize = 2048; 3059 3060 kfree(rcap_buf, M_SCSICD); 3061 *size = softc->params.disksize; 3062 3063 return (error); 3064 3065 } 3066 3067 static int 3068 cd6byteworkaround(union ccb *ccb) 3069 { 3070 u_int8_t *cdb; 3071 struct cam_periph *periph; 3072 struct cd_softc *softc; 3073 struct cd_mode_params *params; 3074 int frozen, found; 3075 3076 periph = xpt_path_periph(ccb->ccb_h.path); 3077 softc = (struct cd_softc *)periph->softc; 3078 3079 cdb = ccb->csio.cdb_io.cdb_bytes; 3080 3081 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) 3082 || ((cdb[0] != MODE_SENSE_6) 3083 && (cdb[0] != MODE_SELECT_6))) 3084 return (0); 3085 3086 /* 3087 * Because there is no convenient place to stash the overall 3088 * cd_mode_params structure pointer, we have to grab it like this. 3089 * This means that ALL MODE_SENSE and MODE_SELECT requests in the 3090 * cd(4) driver MUST go through cdgetmode() and cdsetmode()! 3091 * 3092 * XXX It would be nice if, at some point, we could increase the 3093 * number of available peripheral private pointers. Both pointers 3094 * are currently used in most every peripheral driver. 3095 */ 3096 found = 0; 3097 3098 STAILQ_FOREACH(params, &softc->mode_queue, links) { 3099 if (params->mode_buf == ccb->csio.data_ptr) { 3100 found = 1; 3101 break; 3102 } 3103 } 3104 3105 /* 3106 * This shouldn't happen. All mode sense and mode select 3107 * operations in the cd(4) driver MUST go through cdgetmode() and 3108 * cdsetmode()! 3109 */ 3110 if (found == 0) { 3111 xpt_print(periph->path, 3112 "mode buffer not found in mode queue!\n"); 3113 return (0); 3114 } 3115 3116 params->cdb_size = 10; 3117 softc->minimum_command_size = 10; 3118 xpt_print(ccb->ccb_h.path, 3119 "%s(6) failed, increasing minimum CDB size to 10 bytes\n", 3120 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT"); 3121 3122 if (cdb[0] == MODE_SENSE_6) { 3123 struct scsi_mode_sense_10 ms10; 3124 struct scsi_mode_sense_6 *ms6; 3125 int len; 3126 3127 ms6 = (struct scsi_mode_sense_6 *)cdb; 3128 3129 bzero(&ms10, sizeof(ms10)); 3130 ms10.opcode = MODE_SENSE_10; 3131 ms10.byte2 = ms6->byte2; 3132 ms10.page = ms6->page; 3133 3134 /* 3135 * 10 byte mode header, block descriptor, 3136 * sizeof(union cd_pages) 3137 */ 3138 len = sizeof(struct cd_mode_data_10); 3139 ccb->csio.dxfer_len = len; 3140 3141 scsi_ulto2b(len, ms10.length); 3142 ms10.control = ms6->control; 3143 bcopy(&ms10, cdb, 10); 3144 ccb->csio.cdb_len = 10; 3145 } else { 3146 struct scsi_mode_select_10 ms10; 3147 struct scsi_mode_select_6 *ms6; 3148 struct scsi_mode_header_6 *header6; 3149 struct scsi_mode_header_10 *header10; 3150 struct scsi_mode_page_header *page_header; 3151 int blk_desc_len, page_num, page_size, len; 3152 3153 ms6 = (struct scsi_mode_select_6 *)cdb; 3154 3155 bzero(&ms10, sizeof(ms10)); 3156 ms10.opcode = MODE_SELECT_10; 3157 ms10.byte2 = ms6->byte2; 3158 3159 header6 = (struct scsi_mode_header_6 *)params->mode_buf; 3160 header10 = (struct scsi_mode_header_10 *)params->mode_buf; 3161 3162 page_header = find_mode_page_6(header6); 3163 page_num = page_header->page_code; 3164 3165 blk_desc_len = header6->blk_desc_len; 3166 3167 page_size = cdgetpagesize(page_num); 3168 3169 if (page_size != (page_header->page_length + 3170 sizeof(*page_header))) 3171 page_size = page_header->page_length + 3172 sizeof(*page_header); 3173 3174 len = sizeof(*header10) + blk_desc_len + page_size; 3175 3176 len = min(params->alloc_len, len); 3177 3178 /* 3179 * Since the 6 byte parameter header is shorter than the 10 3180 * byte parameter header, we need to copy the actual mode 3181 * page data, and the block descriptor, if any, so things wind 3182 * up in the right place. The regions will overlap, but 3183 * bcopy() does the right thing. 3184 */ 3185 bcopy(params->mode_buf + sizeof(*header6), 3186 params->mode_buf + sizeof(*header10), 3187 len - sizeof(*header10)); 3188 3189 /* Make sure these fields are set correctly. */ 3190 scsi_ulto2b(0, header10->data_length); 3191 header10->medium_type = 0; 3192 scsi_ulto2b(blk_desc_len, header10->blk_desc_len); 3193 3194 ccb->csio.dxfer_len = len; 3195 3196 scsi_ulto2b(len, ms10.length); 3197 ms10.control = ms6->control; 3198 bcopy(&ms10, cdb, 10); 3199 ccb->csio.cdb_len = 10; 3200 } 3201 3202 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 3203 ccb->ccb_h.status = CAM_REQUEUE_REQ; 3204 xpt_action(ccb); 3205 if (frozen) { 3206 cam_release_devq(ccb->ccb_h.path, 3207 /*relsim_flags*/0, 3208 /*openings*/0, 3209 /*timeout*/0, 3210 /*getcount_only*/0); 3211 } 3212 3213 return (ERESTART); 3214 } 3215 3216 static int 3217 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 3218 { 3219 struct cd_softc *softc; 3220 struct cam_periph *periph; 3221 int error; 3222 3223 periph = xpt_path_periph(ccb->ccb_h.path); 3224 softc = (struct cd_softc *)periph->softc; 3225 3226 error = 0; 3227 3228 /* 3229 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte 3230 * CDB comes back with this particular error, try transforming it 3231 * into the 10 byte version. 3232 */ 3233 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 3234 error = cd6byteworkaround(ccb); 3235 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 3236 CAM_SCSI_STATUS_ERROR) 3237 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 3238 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 3239 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 3240 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 3241 int sense_key, error_code, asc, ascq; 3242 3243 scsi_extract_sense(&ccb->csio.sense_data, 3244 &error_code, &sense_key, &asc, &ascq); 3245 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 3246 error = cd6byteworkaround(ccb); 3247 } 3248 3249 if (error == ERESTART) 3250 return (error); 3251 3252 /* 3253 * XXX 3254 * Until we have a better way of doing pack validation, 3255 * don't treat UAs as errors. 3256 */ 3257 sense_flags |= SF_RETRY_UA; 3258 return (cam_periph_error(ccb, cam_flags, sense_flags, 3259 &softc->saved_ccb)); 3260 } 3261 3262 /* 3263 * Read table of contents 3264 */ 3265 static int 3266 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 3267 u_int8_t *data, u_int32_t len, u_int32_t sense_flags) 3268 { 3269 struct scsi_read_toc *scsi_cmd; 3270 u_int32_t ntoc; 3271 struct ccb_scsiio *csio; 3272 union ccb *ccb; 3273 int error; 3274 3275 ntoc = len; 3276 error = 0; 3277 3278 ccb = cdgetccb(periph, /* priority */ 1); 3279 3280 csio = &ccb->csio; 3281 3282 cam_fill_csio(csio, 3283 /* retries */ 1, 3284 /* cbfcnp */ cddone, 3285 /* flags */ CAM_DIR_IN, 3286 /* tag_action */ MSG_SIMPLE_Q_TAG, 3287 /* data_ptr */ data, 3288 /* dxfer_len */ len, 3289 /* sense_len */ SSD_FULL_SIZE, 3290 sizeof(struct scsi_read_toc), 3291 /* timeout */ 50000); 3292 3293 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 3294 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3295 3296 if (mode == CD_MSF_FORMAT) 3297 scsi_cmd->byte2 |= CD_MSF; 3298 scsi_cmd->from_track = start; 3299 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 3300 scsi_cmd->data_len[0] = (ntoc) >> 8; 3301 scsi_cmd->data_len[1] = (ntoc) & 0xff; 3302 3303 scsi_cmd->op_code = READ_TOC; 3304 3305 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3306 /*sense_flags*/SF_RETRY_UA | sense_flags); 3307 3308 xpt_release_ccb(ccb); 3309 3310 return(error); 3311 } 3312 3313 static int 3314 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 3315 u_int32_t format, int track, 3316 struct cd_sub_channel_info *data, u_int32_t len) 3317 { 3318 struct scsi_read_subchannel *scsi_cmd; 3319 struct ccb_scsiio *csio; 3320 union ccb *ccb; 3321 int error; 3322 3323 error = 0; 3324 3325 ccb = cdgetccb(periph, /* priority */ 1); 3326 3327 csio = &ccb->csio; 3328 3329 cam_fill_csio(csio, 3330 /* retries */ 1, 3331 /* cbfcnp */ cddone, 3332 /* flags */ CAM_DIR_IN, 3333 /* tag_action */ MSG_SIMPLE_Q_TAG, 3334 /* data_ptr */ (u_int8_t *)data, 3335 /* dxfer_len */ len, 3336 /* sense_len */ SSD_FULL_SIZE, 3337 sizeof(struct scsi_read_subchannel), 3338 /* timeout */ 50000); 3339 3340 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 3341 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3342 3343 scsi_cmd->op_code = READ_SUBCHANNEL; 3344 if (mode == CD_MSF_FORMAT) 3345 scsi_cmd->byte1 |= CD_MSF; 3346 scsi_cmd->byte2 = SRS_SUBQ; 3347 scsi_cmd->subchan_format = format; 3348 scsi_cmd->track = track; 3349 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 3350 scsi_cmd->control = 0; 3351 3352 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3353 /*sense_flags*/SF_RETRY_UA); 3354 3355 xpt_release_ccb(ccb); 3356 3357 return(error); 3358 } 3359 3360 /* 3361 * All MODE_SENSE requests in the cd(4) driver MUST go through this 3362 * routine. See comments in cd6byteworkaround() for details. 3363 */ 3364 static int 3365 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data, 3366 u_int32_t page) 3367 { 3368 struct ccb_scsiio *csio; 3369 struct cd_softc *softc; 3370 union ccb *ccb; 3371 int param_len; 3372 int error; 3373 3374 softc = (struct cd_softc *)periph->softc; 3375 3376 ccb = cdgetccb(periph, /* priority */ 1); 3377 3378 csio = &ccb->csio; 3379 3380 data->cdb_size = softc->minimum_command_size; 3381 if (data->cdb_size < 10) 3382 param_len = sizeof(struct cd_mode_data); 3383 else 3384 param_len = sizeof(struct cd_mode_data_10); 3385 3386 /* Don't say we've got more room than we actually allocated */ 3387 param_len = min(param_len, data->alloc_len); 3388 3389 scsi_mode_sense_len(csio, 3390 /* retries */ 1, 3391 /* cbfcnp */ cddone, 3392 /* tag_action */ MSG_SIMPLE_Q_TAG, 3393 /* dbd */ 0, 3394 /* page_code */ SMS_PAGE_CTRL_CURRENT, 3395 /* page */ page, 3396 /* param_buf */ data->mode_buf, 3397 /* param_len */ param_len, 3398 /* minimum_cmd_size */ softc->minimum_command_size, 3399 /* sense_len */ SSD_FULL_SIZE, 3400 /* timeout */ 50000); 3401 3402 /* 3403 * It would be nice not to have to do this, but there's no 3404 * available pointer in the CCB that would allow us to stuff the 3405 * mode params structure in there and retrieve it in 3406 * cd6byteworkaround(), so we can set the cdb size. The cdb size 3407 * lets the caller know what CDB size we ended up using, so they 3408 * can find the actual mode page offset. 3409 */ 3410 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3411 3412 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3413 /*sense_flags*/SF_RETRY_UA); 3414 3415 xpt_release_ccb(ccb); 3416 3417 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3418 3419 /* 3420 * This is a bit of belt-and-suspenders checking, but if we run 3421 * into a situation where the target sends back multiple block 3422 * descriptors, we might not have enough space in the buffer to 3423 * see the whole mode page. Better to return an error than 3424 * potentially access memory beyond our malloced region. 3425 */ 3426 if (error == 0) { 3427 u_int32_t data_len; 3428 3429 if (data->cdb_size == 10) { 3430 struct scsi_mode_header_10 *hdr10; 3431 3432 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf; 3433 data_len = scsi_2btoul(hdr10->data_length); 3434 data_len += sizeof(hdr10->data_length); 3435 } else { 3436 struct scsi_mode_header_6 *hdr6; 3437 3438 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf; 3439 data_len = hdr6->data_length; 3440 data_len += sizeof(hdr6->data_length); 3441 } 3442 3443 /* 3444 * Complain if there is more mode data available than we 3445 * allocated space for. This could potentially happen if 3446 * we miscalculated the page length for some reason, if the 3447 * drive returns multiple block descriptors, or if it sets 3448 * the data length incorrectly. 3449 */ 3450 if (data_len > data->alloc_len) { 3451 xpt_print(periph->path, "allocated modepage %d length " 3452 "%d < returned length %d\n", page, data->alloc_len, 3453 data_len); 3454 error = ENOSPC; 3455 } 3456 } 3457 return (error); 3458 } 3459 3460 /* 3461 * All MODE_SELECT requests in the cd(4) driver MUST go through this 3462 * routine. See comments in cd6byteworkaround() for details. 3463 */ 3464 static int 3465 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data) 3466 { 3467 struct ccb_scsiio *csio; 3468 struct cd_softc *softc; 3469 union ccb *ccb; 3470 int cdb_size, param_len; 3471 int error; 3472 3473 softc = (struct cd_softc *)periph->softc; 3474 3475 ccb = cdgetccb(periph, /* priority */ 1); 3476 3477 csio = &ccb->csio; 3478 3479 error = 0; 3480 3481 /* 3482 * If the data is formatted for the 10 byte version of the mode 3483 * select parameter list, we need to use the 10 byte CDB. 3484 * Otherwise, we use whatever the stored minimum command size. 3485 */ 3486 if (data->cdb_size == 10) 3487 cdb_size = data->cdb_size; 3488 else 3489 cdb_size = softc->minimum_command_size; 3490 3491 if (cdb_size >= 10) { 3492 struct scsi_mode_header_10 *mode_header; 3493 u_int32_t data_len; 3494 3495 mode_header = (struct scsi_mode_header_10 *)data->mode_buf; 3496 3497 data_len = scsi_2btoul(mode_header->data_length); 3498 3499 scsi_ulto2b(0, mode_header->data_length); 3500 /* 3501 * SONY drives do not allow a mode select with a medium_type 3502 * value that has just been returned by a mode sense; use a 3503 * medium_type of 0 (Default) instead. 3504 */ 3505 mode_header->medium_type = 0; 3506 3507 /* 3508 * Pass back whatever the drive passed to us, plus the size 3509 * of the data length field. 3510 */ 3511 param_len = data_len + sizeof(mode_header->data_length); 3512 3513 } else { 3514 struct scsi_mode_header_6 *mode_header; 3515 3516 mode_header = (struct scsi_mode_header_6 *)data->mode_buf; 3517 3518 param_len = mode_header->data_length + 1; 3519 3520 mode_header->data_length = 0; 3521 /* 3522 * SONY drives do not allow a mode select with a medium_type 3523 * value that has just been returned by a mode sense; use a 3524 * medium_type of 0 (Default) instead. 3525 */ 3526 mode_header->medium_type = 0; 3527 } 3528 3529 /* Don't say we've got more room than we actually allocated */ 3530 param_len = min(param_len, data->alloc_len); 3531 3532 scsi_mode_select_len(csio, 3533 /* retries */ 1, 3534 /* cbfcnp */ cddone, 3535 /* tag_action */ MSG_SIMPLE_Q_TAG, 3536 /* scsi_page_fmt */ 1, 3537 /* save_pages */ 0, 3538 /* param_buf */ data->mode_buf, 3539 /* param_len */ param_len, 3540 /* minimum_cmd_size */ cdb_size, 3541 /* sense_len */ SSD_FULL_SIZE, 3542 /* timeout */ 50000); 3543 3544 /* See comments in cdgetmode() and cd6byteworkaround(). */ 3545 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links); 3546 3547 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3548 /*sense_flags*/SF_RETRY_UA); 3549 3550 xpt_release_ccb(ccb); 3551 3552 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links); 3553 3554 return (error); 3555 } 3556 3557 3558 3559 static int 3560 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 3561 { 3562 struct ccb_scsiio *csio; 3563 union ccb *ccb; 3564 int error; 3565 u_int8_t cdb_len; 3566 3567 error = 0; 3568 ccb = cdgetccb(periph, /* priority */ 1); 3569 csio = &ccb->csio; 3570 /* 3571 * Use the smallest possible command to perform the operation. 3572 */ 3573 if ((len & 0xffff0000) == 0) { 3574 /* 3575 * We can fit in a 10 byte cdb. 3576 */ 3577 struct scsi_play_10 *scsi_cmd; 3578 3579 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 3580 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3581 scsi_cmd->op_code = PLAY_10; 3582 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3583 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 3584 cdb_len = sizeof(*scsi_cmd); 3585 } else { 3586 struct scsi_play_12 *scsi_cmd; 3587 3588 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 3589 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3590 scsi_cmd->op_code = PLAY_12; 3591 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 3592 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 3593 cdb_len = sizeof(*scsi_cmd); 3594 } 3595 cam_fill_csio(csio, 3596 /*retries*/2, 3597 cddone, 3598 /*flags*/CAM_DIR_NONE, 3599 MSG_SIMPLE_Q_TAG, 3600 /*dataptr*/NULL, 3601 /*datalen*/0, 3602 /*sense_len*/SSD_FULL_SIZE, 3603 cdb_len, 3604 /*timeout*/50 * 1000); 3605 3606 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3607 /*sense_flags*/SF_RETRY_UA); 3608 3609 xpt_release_ccb(ccb); 3610 3611 return(error); 3612 } 3613 3614 static int 3615 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 3616 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 3617 { 3618 struct scsi_play_msf *scsi_cmd; 3619 struct ccb_scsiio *csio; 3620 union ccb *ccb; 3621 int error; 3622 3623 error = 0; 3624 3625 ccb = cdgetccb(periph, /* priority */ 1); 3626 3627 csio = &ccb->csio; 3628 3629 cam_fill_csio(csio, 3630 /* retries */ 1, 3631 /* cbfcnp */ cddone, 3632 /* flags */ CAM_DIR_NONE, 3633 /* tag_action */ MSG_SIMPLE_Q_TAG, 3634 /* data_ptr */ NULL, 3635 /* dxfer_len */ 0, 3636 /* sense_len */ SSD_FULL_SIZE, 3637 sizeof(struct scsi_play_msf), 3638 /* timeout */ 50000); 3639 3640 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 3641 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3642 3643 scsi_cmd->op_code = PLAY_MSF; 3644 scsi_cmd->start_m = startm; 3645 scsi_cmd->start_s = starts; 3646 scsi_cmd->start_f = startf; 3647 scsi_cmd->end_m = endm; 3648 scsi_cmd->end_s = ends; 3649 scsi_cmd->end_f = endf; 3650 3651 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3652 /*sense_flags*/SF_RETRY_UA); 3653 3654 xpt_release_ccb(ccb); 3655 3656 return(error); 3657 } 3658 3659 3660 static int 3661 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 3662 u_int32_t etrack, u_int32_t eindex) 3663 { 3664 struct scsi_play_track *scsi_cmd; 3665 struct ccb_scsiio *csio; 3666 union ccb *ccb; 3667 int error; 3668 3669 error = 0; 3670 3671 ccb = cdgetccb(periph, /* priority */ 1); 3672 3673 csio = &ccb->csio; 3674 3675 cam_fill_csio(csio, 3676 /* retries */ 1, 3677 /* cbfcnp */ cddone, 3678 /* flags */ CAM_DIR_NONE, 3679 /* tag_action */ MSG_SIMPLE_Q_TAG, 3680 /* data_ptr */ NULL, 3681 /* dxfer_len */ 0, 3682 /* sense_len */ SSD_FULL_SIZE, 3683 sizeof(struct scsi_play_track), 3684 /* timeout */ 50000); 3685 3686 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 3687 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3688 3689 scsi_cmd->op_code = PLAY_TRACK; 3690 scsi_cmd->start_track = strack; 3691 scsi_cmd->start_index = sindex; 3692 scsi_cmd->end_track = etrack; 3693 scsi_cmd->end_index = eindex; 3694 3695 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3696 /*sense_flags*/SF_RETRY_UA); 3697 3698 xpt_release_ccb(ccb); 3699 3700 return(error); 3701 } 3702 3703 static int 3704 cdpause(struct cam_periph *periph, u_int32_t go) 3705 { 3706 struct scsi_pause *scsi_cmd; 3707 struct ccb_scsiio *csio; 3708 union ccb *ccb; 3709 int error; 3710 3711 error = 0; 3712 3713 ccb = cdgetccb(periph, /* priority */ 1); 3714 3715 csio = &ccb->csio; 3716 3717 cam_fill_csio(csio, 3718 /* retries */ 1, 3719 /* cbfcnp */ cddone, 3720 /* flags */ CAM_DIR_NONE, 3721 /* tag_action */ MSG_SIMPLE_Q_TAG, 3722 /* data_ptr */ NULL, 3723 /* dxfer_len */ 0, 3724 /* sense_len */ SSD_FULL_SIZE, 3725 sizeof(struct scsi_pause), 3726 /* timeout */ 50000); 3727 3728 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 3729 bzero (scsi_cmd, sizeof(*scsi_cmd)); 3730 3731 scsi_cmd->op_code = PAUSE; 3732 scsi_cmd->resume = go; 3733 3734 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3735 /*sense_flags*/SF_RETRY_UA); 3736 3737 xpt_release_ccb(ccb); 3738 3739 return(error); 3740 } 3741 3742 static int 3743 cdstartunit(struct cam_periph *periph, int load) 3744 { 3745 union ccb *ccb; 3746 int error; 3747 3748 error = 0; 3749 3750 ccb = cdgetccb(periph, /* priority */ 1); 3751 3752 scsi_start_stop(&ccb->csio, 3753 /* retries */ 1, 3754 /* cbfcnp */ cddone, 3755 /* tag_action */ MSG_SIMPLE_Q_TAG, 3756 /* start */ TRUE, 3757 /* load_eject */ load, 3758 /* immediate */ FALSE, 3759 /* sense_len */ SSD_FULL_SIZE, 3760 /* timeout */ 50000); 3761 3762 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3763 /*sense_flags*/SF_RETRY_UA); 3764 3765 xpt_release_ccb(ccb); 3766 3767 return(error); 3768 } 3769 3770 static int 3771 cdstopunit(struct cam_periph *periph, u_int32_t eject) 3772 { 3773 union ccb *ccb; 3774 int error; 3775 3776 error = 0; 3777 3778 ccb = cdgetccb(periph, /* priority */ 1); 3779 3780 scsi_start_stop(&ccb->csio, 3781 /* retries */ 1, 3782 /* cbfcnp */ cddone, 3783 /* tag_action */ MSG_SIMPLE_Q_TAG, 3784 /* start */ FALSE, 3785 /* load_eject */ eject, 3786 /* immediate */ FALSE, 3787 /* sense_len */ SSD_FULL_SIZE, 3788 /* timeout */ 50000); 3789 3790 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3791 /*sense_flags*/SF_RETRY_UA); 3792 3793 xpt_release_ccb(ccb); 3794 3795 return(error); 3796 } 3797 3798 static int 3799 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed) 3800 { 3801 struct scsi_set_speed *scsi_cmd; 3802 struct ccb_scsiio *csio; 3803 union ccb *ccb; 3804 int error; 3805 3806 error = 0; 3807 ccb = cdgetccb(periph, /* priority */ 1); 3808 csio = &ccb->csio; 3809 3810 /* Preserve old behavior: units in multiples of CDROM speed */ 3811 if (rdspeed < 177) 3812 rdspeed *= 177; 3813 if (wrspeed < 177) 3814 wrspeed *= 177; 3815 3816 cam_fill_csio(csio, 3817 /* retries */ 1, 3818 /* cbfcnp */ cddone, 3819 /* flags */ CAM_DIR_NONE, 3820 /* tag_action */ MSG_SIMPLE_Q_TAG, 3821 /* data_ptr */ NULL, 3822 /* dxfer_len */ 0, 3823 /* sense_len */ SSD_FULL_SIZE, 3824 sizeof(struct scsi_set_speed), 3825 /* timeout */ 50000); 3826 3827 scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes; 3828 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3829 3830 scsi_cmd->opcode = SET_CD_SPEED; 3831 scsi_ulto2b(rdspeed, scsi_cmd->readspeed); 3832 scsi_ulto2b(wrspeed, scsi_cmd->writespeed); 3833 3834 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3835 /*sense_flags*/SF_RETRY_UA); 3836 3837 xpt_release_ccb(ccb); 3838 3839 return(error); 3840 } 3841 3842 static int 3843 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 3844 { 3845 union ccb *ccb; 3846 u_int8_t *databuf; 3847 u_int32_t lba; 3848 int error; 3849 int length; 3850 3851 error = 0; 3852 databuf = NULL; 3853 lba = 0; 3854 3855 ccb = cdgetccb(periph, /* priority */ 1); 3856 3857 switch (authinfo->format) { 3858 case DVD_REPORT_AGID: 3859 length = sizeof(struct scsi_report_key_data_agid); 3860 break; 3861 case DVD_REPORT_CHALLENGE: 3862 length = sizeof(struct scsi_report_key_data_challenge); 3863 break; 3864 case DVD_REPORT_KEY1: 3865 length = sizeof(struct scsi_report_key_data_key1_key2); 3866 break; 3867 case DVD_REPORT_TITLE_KEY: 3868 length = sizeof(struct scsi_report_key_data_title); 3869 /* The lba field is only set for the title key */ 3870 lba = authinfo->lba; 3871 break; 3872 case DVD_REPORT_ASF: 3873 length = sizeof(struct scsi_report_key_data_asf); 3874 break; 3875 case DVD_REPORT_RPC: 3876 length = sizeof(struct scsi_report_key_data_rpc); 3877 break; 3878 case DVD_INVALIDATE_AGID: 3879 length = 0; 3880 break; 3881 default: 3882 error = EINVAL; 3883 goto bailout; 3884 break; /* NOTREACHED */ 3885 } 3886 3887 if (length != 0) { 3888 databuf = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 3889 } else { 3890 databuf = NULL; 3891 } 3892 3893 3894 scsi_report_key(&ccb->csio, 3895 /* retries */ 1, 3896 /* cbfcnp */ cddone, 3897 /* tag_action */ MSG_SIMPLE_Q_TAG, 3898 /* lba */ lba, 3899 /* agid */ authinfo->agid, 3900 /* key_format */ authinfo->format, 3901 /* data_ptr */ databuf, 3902 /* dxfer_len */ length, 3903 /* sense_len */ SSD_FULL_SIZE, 3904 /* timeout */ 50000); 3905 3906 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 3907 /*sense_flags*/SF_RETRY_UA); 3908 3909 if (error != 0) 3910 goto bailout; 3911 3912 if (ccb->csio.resid != 0) { 3913 xpt_print(periph->path, "warning, residual for report key " 3914 "command is %d\n", ccb->csio.resid); 3915 } 3916 3917 switch(authinfo->format) { 3918 case DVD_REPORT_AGID: { 3919 struct scsi_report_key_data_agid *agid_data; 3920 3921 agid_data = (struct scsi_report_key_data_agid *)databuf; 3922 3923 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >> 3924 RKD_AGID_SHIFT; 3925 break; 3926 } 3927 case DVD_REPORT_CHALLENGE: { 3928 struct scsi_report_key_data_challenge *chal_data; 3929 3930 chal_data = (struct scsi_report_key_data_challenge *)databuf; 3931 3932 bcopy(chal_data->challenge_key, authinfo->keychal, 3933 min(sizeof(chal_data->challenge_key), 3934 sizeof(authinfo->keychal))); 3935 break; 3936 } 3937 case DVD_REPORT_KEY1: { 3938 struct scsi_report_key_data_key1_key2 *key1_data; 3939 3940 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf; 3941 3942 bcopy(key1_data->key1, authinfo->keychal, 3943 min(sizeof(key1_data->key1), sizeof(authinfo->keychal))); 3944 break; 3945 } 3946 case DVD_REPORT_TITLE_KEY: { 3947 struct scsi_report_key_data_title *title_data; 3948 3949 title_data = (struct scsi_report_key_data_title *)databuf; 3950 3951 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >> 3952 RKD_TITLE_CPM_SHIFT; 3953 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >> 3954 RKD_TITLE_CP_SEC_SHIFT; 3955 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >> 3956 RKD_TITLE_CMGS_SHIFT; 3957 bcopy(title_data->title_key, authinfo->keychal, 3958 min(sizeof(title_data->title_key), 3959 sizeof(authinfo->keychal))); 3960 break; 3961 } 3962 case DVD_REPORT_ASF: { 3963 struct scsi_report_key_data_asf *asf_data; 3964 3965 asf_data = (struct scsi_report_key_data_asf *)databuf; 3966 3967 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS; 3968 break; 3969 } 3970 case DVD_REPORT_RPC: { 3971 struct scsi_report_key_data_rpc *rpc_data; 3972 3973 rpc_data = (struct scsi_report_key_data_rpc *)databuf; 3974 3975 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >> 3976 RKD_RPC_TYPE_SHIFT; 3977 authinfo->vend_rsts = 3978 (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >> 3979 RKD_RPC_VENDOR_RESET_SHIFT; 3980 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK; 3981 authinfo->region = rpc_data->region_mask; 3982 authinfo->rpc_scheme = rpc_data->rpc_scheme1; 3983 break; 3984 } 3985 case DVD_INVALIDATE_AGID: 3986 break; 3987 default: 3988 /* This should be impossible, since we checked above */ 3989 error = EINVAL; 3990 goto bailout; 3991 break; /* NOTREACHED */ 3992 } 3993 bailout: 3994 if (databuf != NULL) 3995 kfree(databuf, M_DEVBUF); 3996 3997 xpt_release_ccb(ccb); 3998 3999 return(error); 4000 } 4001 4002 static int 4003 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo) 4004 { 4005 union ccb *ccb; 4006 u_int8_t *databuf; 4007 int length; 4008 int error; 4009 4010 error = 0; 4011 databuf = NULL; 4012 4013 ccb = cdgetccb(periph, /* priority */ 1); 4014 4015 switch(authinfo->format) { 4016 case DVD_SEND_CHALLENGE: { 4017 struct scsi_report_key_data_challenge *challenge_data; 4018 4019 length = sizeof(*challenge_data); 4020 4021 challenge_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4022 4023 databuf = (u_int8_t *)challenge_data; 4024 4025 scsi_ulto2b(length - sizeof(challenge_data->data_len), 4026 challenge_data->data_len); 4027 4028 bcopy(authinfo->keychal, challenge_data->challenge_key, 4029 min(sizeof(authinfo->keychal), 4030 sizeof(challenge_data->challenge_key))); 4031 break; 4032 } 4033 case DVD_SEND_KEY2: { 4034 struct scsi_report_key_data_key1_key2 *key2_data; 4035 4036 length = sizeof(*key2_data); 4037 4038 key2_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4039 4040 databuf = (u_int8_t *)key2_data; 4041 4042 scsi_ulto2b(length - sizeof(key2_data->data_len), 4043 key2_data->data_len); 4044 4045 bcopy(authinfo->keychal, key2_data->key1, 4046 min(sizeof(authinfo->keychal), sizeof(key2_data->key1))); 4047 4048 break; 4049 } 4050 case DVD_SEND_RPC: { 4051 struct scsi_send_key_data_rpc *rpc_data; 4052 4053 length = sizeof(*rpc_data); 4054 4055 rpc_data = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4056 4057 databuf = (u_int8_t *)rpc_data; 4058 4059 scsi_ulto2b(length - sizeof(rpc_data->data_len), 4060 rpc_data->data_len); 4061 4062 rpc_data->region_code = authinfo->region; 4063 break; 4064 } 4065 default: 4066 error = EINVAL; 4067 goto bailout; 4068 break; /* NOTREACHED */ 4069 } 4070 4071 scsi_send_key(&ccb->csio, 4072 /* retries */ 1, 4073 /* cbfcnp */ cddone, 4074 /* tag_action */ MSG_SIMPLE_Q_TAG, 4075 /* agid */ authinfo->agid, 4076 /* key_format */ authinfo->format, 4077 /* data_ptr */ databuf, 4078 /* dxfer_len */ length, 4079 /* sense_len */ SSD_FULL_SIZE, 4080 /* timeout */ 50000); 4081 4082 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4083 /*sense_flags*/SF_RETRY_UA); 4084 4085 bailout: 4086 4087 if (databuf != NULL) 4088 kfree(databuf, M_DEVBUF); 4089 4090 xpt_release_ccb(ccb); 4091 4092 return(error); 4093 } 4094 4095 static int 4096 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct) 4097 { 4098 union ccb *ccb; 4099 u_int8_t *databuf; 4100 u_int32_t address; 4101 int error; 4102 int length; 4103 4104 error = 0; 4105 databuf = NULL; 4106 /* The address is reserved for many of the formats */ 4107 address = 0; 4108 4109 ccb = cdgetccb(periph, /* priority */ 1); 4110 4111 switch(dvdstruct->format) { 4112 case DVD_STRUCT_PHYSICAL: 4113 length = sizeof(struct scsi_read_dvd_struct_data_physical); 4114 break; 4115 case DVD_STRUCT_COPYRIGHT: 4116 length = sizeof(struct scsi_read_dvd_struct_data_copyright); 4117 break; 4118 case DVD_STRUCT_DISCKEY: 4119 length = sizeof(struct scsi_read_dvd_struct_data_disc_key); 4120 break; 4121 case DVD_STRUCT_BCA: 4122 length = sizeof(struct scsi_read_dvd_struct_data_bca); 4123 break; 4124 case DVD_STRUCT_MANUFACT: 4125 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer); 4126 break; 4127 case DVD_STRUCT_CMI: 4128 error = ENODEV; 4129 goto bailout; 4130 #ifdef notyet 4131 length = sizeof(struct scsi_read_dvd_struct_data_copy_manage); 4132 address = dvdstruct->address; 4133 #endif 4134 break; /* NOTREACHED */ 4135 case DVD_STRUCT_PROTDISCID: 4136 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid); 4137 break; 4138 case DVD_STRUCT_DISCKEYBLOCK: 4139 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk); 4140 break; 4141 case DVD_STRUCT_DDS: 4142 length = sizeof(struct scsi_read_dvd_struct_data_dds); 4143 break; 4144 case DVD_STRUCT_MEDIUM_STAT: 4145 length = sizeof(struct scsi_read_dvd_struct_data_medium_status); 4146 break; 4147 case DVD_STRUCT_SPARE_AREA: 4148 length = sizeof(struct scsi_read_dvd_struct_data_spare_area); 4149 break; 4150 case DVD_STRUCT_RMD_LAST: 4151 error = ENODEV; 4152 goto bailout; 4153 #ifdef notyet 4154 length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout); 4155 address = dvdstruct->address; 4156 #endif 4157 break; /* NOTREACHED */ 4158 case DVD_STRUCT_RMD_RMA: 4159 error = ENODEV; 4160 goto bailout; 4161 #ifdef notyet 4162 length = sizeof(struct scsi_read_dvd_struct_data_rmd); 4163 address = dvdstruct->address; 4164 #endif 4165 break; /* NOTREACHED */ 4166 case DVD_STRUCT_PRERECORDED: 4167 length = sizeof(struct scsi_read_dvd_struct_data_leadin); 4168 break; 4169 case DVD_STRUCT_UNIQUEID: 4170 length = sizeof(struct scsi_read_dvd_struct_data_disc_id); 4171 break; 4172 case DVD_STRUCT_DCB: 4173 error = ENODEV; 4174 goto bailout; 4175 #ifdef notyet 4176 length = sizeof(struct scsi_read_dvd_struct_data_dcb); 4177 address = dvdstruct->address; 4178 #endif 4179 break; /* NOTREACHED */ 4180 case DVD_STRUCT_LIST: 4181 /* 4182 * This is the maximum allocation length for the READ DVD 4183 * STRUCTURE command. There's nothing in the MMC3 spec 4184 * that indicates a limit in the amount of data that can 4185 * be returned from this call, other than the limits 4186 * imposed by the 2-byte length variables. 4187 */ 4188 length = 65535; 4189 break; 4190 default: 4191 error = EINVAL; 4192 goto bailout; 4193 break; /* NOTREACHED */ 4194 } 4195 4196 if (length != 0) { 4197 databuf = kmalloc(length, M_DEVBUF, M_INTWAIT | M_ZERO); 4198 } else { 4199 databuf = NULL; 4200 } 4201 4202 scsi_read_dvd_structure(&ccb->csio, 4203 /* retries */ 1, 4204 /* cbfcnp */ cddone, 4205 /* tag_action */ MSG_SIMPLE_Q_TAG, 4206 /* lba */ address, 4207 /* layer_number */ dvdstruct->layer_num, 4208 /* key_format */ dvdstruct->format, 4209 /* agid */ dvdstruct->agid, 4210 /* data_ptr */ databuf, 4211 /* dxfer_len */ length, 4212 /* sense_len */ SSD_FULL_SIZE, 4213 /* timeout */ 50000); 4214 4215 error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO, 4216 /*sense_flags*/SF_RETRY_UA); 4217 4218 if (error != 0) 4219 goto bailout; 4220 4221 switch(dvdstruct->format) { 4222 case DVD_STRUCT_PHYSICAL: { 4223 struct scsi_read_dvd_struct_data_layer_desc *inlayer; 4224 struct dvd_layer *outlayer; 4225 struct scsi_read_dvd_struct_data_physical *phys_data; 4226 4227 phys_data = 4228 (struct scsi_read_dvd_struct_data_physical *)databuf; 4229 inlayer = &phys_data->layer_desc; 4230 outlayer = (struct dvd_layer *)&dvdstruct->data; 4231 4232 dvdstruct->length = sizeof(*inlayer); 4233 4234 outlayer->book_type = (inlayer->book_type_version & 4235 RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT; 4236 outlayer->book_version = (inlayer->book_type_version & 4237 RDSD_BOOK_VERSION_MASK); 4238 outlayer->disc_size = (inlayer->disc_size_max_rate & 4239 RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT; 4240 outlayer->max_rate = (inlayer->disc_size_max_rate & 4241 RDSD_MAX_RATE_MASK); 4242 outlayer->nlayers = (inlayer->layer_info & 4243 RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT; 4244 outlayer->track_path = (inlayer->layer_info & 4245 RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT; 4246 outlayer->layer_type = (inlayer->layer_info & 4247 RDSD_LAYER_TYPE_MASK); 4248 outlayer->linear_density = (inlayer->density & 4249 RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT; 4250 outlayer->track_density = (inlayer->density & 4251 RDSD_TRACK_DENSITY_MASK); 4252 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >> 4253 RDSD_BCA_SHIFT; 4254 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start); 4255 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end); 4256 outlayer->end_sector_l0 = 4257 scsi_3btoul(inlayer->end_sector_layer0); 4258 break; 4259 } 4260 case DVD_STRUCT_COPYRIGHT: { 4261 struct scsi_read_dvd_struct_data_copyright *copy_data; 4262 4263 copy_data = (struct scsi_read_dvd_struct_data_copyright *) 4264 databuf; 4265 4266 dvdstruct->cpst = copy_data->cps_type; 4267 dvdstruct->rmi = copy_data->region_info; 4268 dvdstruct->length = 0; 4269 4270 break; 4271 } 4272 default: 4273 /* 4274 * Tell the user what the overall length is, no matter 4275 * what we can actually fit in the data buffer. 4276 */ 4277 dvdstruct->length = length - ccb->csio.resid - 4278 sizeof(struct scsi_read_dvd_struct_data_header); 4279 4280 /* 4281 * But only actually copy out the smaller of what we read 4282 * in or what the structure can take. 4283 */ 4284 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header), 4285 dvdstruct->data, 4286 min(sizeof(dvdstruct->data), dvdstruct->length)); 4287 break; 4288 } 4289 bailout: 4290 4291 if (databuf != NULL) 4292 kfree(databuf, M_DEVBUF); 4293 4294 xpt_release_ccb(ccb); 4295 4296 return(error); 4297 } 4298 4299 void 4300 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries, 4301 void (*cbfcnp)(struct cam_periph *, union ccb *), 4302 u_int8_t tag_action, u_int32_t lba, u_int8_t agid, 4303 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len, 4304 u_int8_t sense_len, u_int32_t timeout) 4305 { 4306 struct scsi_report_key *scsi_cmd; 4307 4308 scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes; 4309 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4310 scsi_cmd->opcode = REPORT_KEY; 4311 scsi_ulto4b(lba, scsi_cmd->lba); 4312 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4313 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4314 (key_format & RK_KF_KEYFORMAT_MASK); 4315 4316 cam_fill_csio(csio, 4317 retries, 4318 cbfcnp, 4319 /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN, 4320 tag_action, 4321 /*data_ptr*/ data_ptr, 4322 /*dxfer_len*/ dxfer_len, 4323 sense_len, 4324 sizeof(*scsi_cmd), 4325 timeout); 4326 } 4327 4328 void 4329 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries, 4330 void (*cbfcnp)(struct cam_periph *, union ccb *), 4331 u_int8_t tag_action, u_int8_t agid, u_int8_t key_format, 4332 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 4333 u_int32_t timeout) 4334 { 4335 struct scsi_send_key *scsi_cmd; 4336 4337 scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes; 4338 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4339 scsi_cmd->opcode = SEND_KEY; 4340 4341 scsi_ulto2b(dxfer_len, scsi_cmd->param_len); 4342 scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) | 4343 (key_format & RK_KF_KEYFORMAT_MASK); 4344 4345 cam_fill_csio(csio, 4346 retries, 4347 cbfcnp, 4348 /*flags*/ CAM_DIR_OUT, 4349 tag_action, 4350 /*data_ptr*/ data_ptr, 4351 /*dxfer_len*/ dxfer_len, 4352 sense_len, 4353 sizeof(*scsi_cmd), 4354 timeout); 4355 } 4356 4357 4358 void 4359 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries, 4360 void (*cbfcnp)(struct cam_periph *, union ccb *), 4361 u_int8_t tag_action, u_int32_t address, 4362 u_int8_t layer_number, u_int8_t format, u_int8_t agid, 4363 u_int8_t *data_ptr, u_int32_t dxfer_len, 4364 u_int8_t sense_len, u_int32_t timeout) 4365 { 4366 struct scsi_read_dvd_structure *scsi_cmd; 4367 4368 scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes; 4369 bzero(scsi_cmd, sizeof(*scsi_cmd)); 4370 scsi_cmd->opcode = READ_DVD_STRUCTURE; 4371 4372 scsi_ulto4b(address, scsi_cmd->address); 4373 scsi_cmd->layer_number = layer_number; 4374 scsi_cmd->format = format; 4375 scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len); 4376 /* The AGID is the top two bits of this byte */ 4377 scsi_cmd->agid = agid << 6; 4378 4379 cam_fill_csio(csio, 4380 retries, 4381 cbfcnp, 4382 /*flags*/ CAM_DIR_IN, 4383 tag_action, 4384 /*data_ptr*/ data_ptr, 4385 /*dxfer_len*/ dxfer_len, 4386 sense_len, 4387 sizeof(*scsi_cmd), 4388 timeout); 4389 } 4390