scsi_cd.c revision 42017
1/* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998 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 * $Id: scsi_cd.c,v 1.10 1998/12/04 22:54:43 archie 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/dkbad.h> 56#include <sys/disklabel.h> 57#include <sys/diskslice.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/cdio.h> 61#include <sys/devicestat.h> 62#include <sys/sysctl.h> 63 64#include <cam/cam.h> 65#include <cam/cam_ccb.h> 66#include <cam/cam_extend.h> 67#include <cam/cam_periph.h> 68#include <cam/cam_xpt_periph.h> 69#include <cam/cam_queue.h> 70 71#include <cam/scsi/scsi_message.h> 72#include <cam/scsi/scsi_da.h> 73#include <cam/scsi/scsi_cd.h> 74 75#define LEADOUT 0xaa /* leadout toc entry */ 76 77struct cd_params { 78 u_int32_t blksize; 79 u_long disksize; 80}; 81 82typedef enum { 83 CD_Q_NONE = 0x00, 84 CD_Q_NO_TOUCH = 0x01, 85 CD_Q_BCD_TRACKS = 0x02, 86 CD_Q_NO_CHANGER = 0x04, 87 CD_Q_CHANGER = 0x08 88} cd_quirks; 89 90typedef enum { 91 CD_FLAG_INVALID = 0x001, 92 CD_FLAG_NEW_DISC = 0x002, 93 CD_FLAG_DISC_LOCKED = 0x004, 94 CD_FLAG_DISC_REMOVABLE = 0x008, 95 CD_FLAG_TAGGED_QUEUING = 0x010, 96 CD_FLAG_OPEN = 0x020, 97 CD_FLAG_CHANGER = 0x040, 98 CD_FLAG_ACTIVE = 0x080, 99 CD_FLAG_SCHED_ON_COMP = 0x100, 100 CD_FLAG_RETRY_UA = 0x200 101} cd_flags; 102 103typedef enum { 104 CD_CCB_PROBE = 0x01, 105 CD_CCB_BUFFER_IO = 0x02, 106 CD_CCB_WAITING = 0x03, 107 CD_CCB_TYPE_MASK = 0x0F, 108 CD_CCB_RETRY_UA = 0x10 109} cd_ccb_state; 110 111typedef enum { 112 CHANGER_TIMEOUT_SCHED = 0x01, 113 CHANGER_SHORT_TMOUT_SCHED = 0x02, 114 CHANGER_MANUAL_CALL = 0x04, 115 CHANGER_NEED_TIMEOUT = 0x08 116} cd_changer_flags; 117 118#define ccb_state ppriv_field0 119#define ccb_bp ppriv_ptr1 120 121typedef enum { 122 CD_STATE_PROBE, 123 CD_STATE_NORMAL 124} cd_state; 125 126struct cd_softc { 127 cam_pinfo pinfo; 128 cd_state state; 129 cd_flags flags; 130 struct buf_queue_head buf_queue; 131 LIST_HEAD(, ccb_hdr) pending_ccbs; 132 struct cd_params params; 133 struct diskslices *cd_slices; 134 union ccb saved_ccb; 135 cd_quirks quirks; 136 struct devstat device_stats; 137 STAILQ_ENTRY(cd_softc) changer_links; 138 struct cdchanger *changer; 139 int bufs_left; 140 struct cam_periph *periph; 141}; 142 143struct cd_quirk_entry { 144 struct scsi_inquiry_pattern inq_pat; 145 cd_quirks quirks; 146}; 147 148/* 149 * These quirk entries aren't strictly necessary. Basically, what they do 150 * is tell cdregister() up front that a device is a changer. Otherwise, it 151 * will figure that fact out once it sees a LUN on the device that is 152 * greater than 0. If it is known up front that a device is a changer, all 153 * I/O to the device will go through the changer scheduling routines, as 154 * opposed to the "normal" CD code. 155 */ 156static struct cd_quirk_entry cd_quirk_table[] = 157{ 158 { 159 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 160 /*quirks*/ CD_Q_CHANGER 161 }, 162 { 163 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM-604X", 164 "*"}, /* quirks */ CD_Q_CHANGER 165 }, 166 { 167 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 168 /* quirks */ CD_Q_BCD_TRACKS 169 } 170}; 171 172#ifndef MIN 173#define MIN(x,y) ((x<y) ? x : y) 174#endif 175 176#define CD_CDEV_MAJOR 15 177#define CD_BDEV_MAJOR 6 178 179static d_open_t cdopen; 180static d_read_t cdread; 181static d_close_t cdclose; 182static d_ioctl_t cdioctl; 183static d_strategy_t cdstrategy; 184static d_strategy_t cdstrategy1; 185 186static periph_init_t cdinit; 187static periph_ctor_t cdregister; 188static periph_dtor_t cdcleanup; 189static periph_start_t cdstart; 190static periph_oninv_t cdoninvalidate; 191static void cdasync(void *callback_arg, u_int32_t code, 192 struct cam_path *path, void *arg); 193static void cdshorttimeout(void *arg); 194static void cdschedule(struct cam_periph *periph, int priority); 195static void cdrunchangerqueue(void *arg); 196static void cdchangerschedule(struct cd_softc *softc); 197static int cdrunccb(union ccb *ccb, 198 int (*error_routine)(union ccb *ccb, 199 u_int32_t cam_flags, 200 u_int32_t sense_flags), 201 u_int32_t cam_flags, u_int32_t sense_flags); 202union ccb *cdgetccb(struct cam_periph *periph, 203 u_int32_t priority); 204static void cddone(struct cam_periph *periph, 205 union ccb *start_ccb); 206static int cderror(union ccb *ccb, u_int32_t cam_flags, 207 u_int32_t sense_flags); 208static void cdprevent(struct cam_periph *periph, int action); 209static int cdsize(dev_t dev, u_int32_t *size); 210static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 211 u_int32_t start, struct cd_toc_entry *data, 212 u_int32_t len); 213static int cdgetmode(struct cam_periph *periph, 214 struct cd_mode_data *data, u_int32_t page); 215static int cdsetmode(struct cam_periph *periph, 216 struct cd_mode_data *data); 217static int cdplay(struct cam_periph *periph, u_int32_t blk, 218 u_int32_t len); 219static int cdreadsubchannel(struct cam_periph *periph, 220 u_int32_t mode, u_int32_t format, 221 int track, 222 struct cd_sub_channel_info *data, 223 u_int32_t len); 224static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 225 u_int32_t starts, u_int32_t startf, 226 u_int32_t endm, u_int32_t ends, 227 u_int32_t endf); 228static int cdplaytracks(struct cam_periph *periph, 229 u_int32_t strack, u_int32_t sindex, 230 u_int32_t etrack, u_int32_t eindex); 231static int cdpause(struct cam_periph *periph, u_int32_t go); 232static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 233static int cdstartunit(struct cam_periph *periph); 234 235static struct periph_driver cddriver = 236{ 237 cdinit, "cd", 238 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 239}; 240 241DATA_SET(periphdriver_set, cddriver); 242 243/* For 2.2-stable support */ 244#ifndef D_DISK 245#define D_DISK 0 246#endif 247static struct cdevsw cd_cdevsw = 248{ 249 /*d_open*/ cdopen, 250 /*d_close*/ cdclose, 251 /*d_read*/ cdread, 252 /*d_write*/ nowrite, 253 /*d_ioctl*/ cdioctl, 254 /*d_stop*/ nostop, 255 /*d_reset*/ noreset, 256 /*d_devtotty*/ nodevtotty, 257 /*d_poll*/ seltrue, 258 /*d_mmap*/ nommap, 259 /*d_strategy*/ cdstrategy, 260 /*d_name*/ "cd", 261 /*d_spare*/ NULL, 262 /*d_maj*/ -1, 263 /*d_dump*/ nodump, 264 /*d_psize*/ nopsize, 265 /*d_flags*/ D_DISK, 266 /*d_maxio*/ 0, 267 /*b_maj*/ -1 268}; 269 270static struct extend_array *cdperiphs; 271static int num_changers; 272 273#ifndef CHANGER_MIN_BUSY_SECONDS 274#define CHANGER_MIN_BUSY_SECONDS 2 275#endif 276#ifndef CHANGER_MAX_BUSY_SECONDS 277#define CHANGER_MAX_BUSY_SECONDS 10 278#endif 279 280static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 281static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 282 283/* 284 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl 285 * variables. 286 */ 287SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 288SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 289SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 290SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 291 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 292SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 293 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 294 295struct cdchanger { 296 path_id_t path_id; 297 target_id_t target_id; 298 int num_devices; 299 struct camq devq; 300 struct timeval start_time; 301 struct cd_softc *cur_device; 302 struct callout_handle short_handle; 303 struct callout_handle long_handle; 304 cd_changer_flags flags; 305 STAILQ_ENTRY(cdchanger) changer_links; 306 STAILQ_HEAD(chdevlist, cd_softc) chluns; 307}; 308 309static STAILQ_HEAD(changerlist, cdchanger) changerq; 310 311void 312cdinit(void) 313{ 314 cam_status status; 315 struct cam_path *path; 316 317 /* 318 * Create our extend array for storing the devices we attach to. 319 */ 320 cdperiphs = cam_extend_new(); 321 if (cdperiphs == NULL) { 322 printf("cd: Failed to alloc extend array!\n"); 323 return; 324 } 325 326 /* 327 * Install a global async callback. This callback will 328 * receive async callbacks like "new device found". 329 */ 330 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 331 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 332 333 if (status == CAM_REQ_CMP) { 334 struct ccb_setasync csa; 335 336 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 337 csa.ccb_h.func_code = XPT_SASYNC_CB; 338 csa.event_enable = AC_FOUND_DEVICE; 339 csa.callback = cdasync; 340 csa.callback_arg = NULL; 341 xpt_action((union ccb *)&csa); 342 status = csa.ccb_h.status; 343 xpt_free_path(path); 344 } 345 346 if (status != CAM_REQ_CMP) { 347 printf("cd: Failed to attach master async callback " 348 "due to status 0x%x!\n", status); 349 } else { 350 /* If we were successfull, register our devsw */ 351 cdevsw_add_generic(CD_BDEV_MAJOR, CD_CDEV_MAJOR, &cd_cdevsw); 352 } 353} 354 355static void 356cdoninvalidate(struct cam_periph *periph) 357{ 358 int s; 359 struct cd_softc *softc; 360 struct buf *q_bp; 361 struct ccb_setasync csa; 362 363 softc = (struct cd_softc *)periph->softc; 364 365 /* 366 * De-register any async callbacks. 367 */ 368 xpt_setup_ccb(&csa.ccb_h, periph->path, 369 /* priority */ 5); 370 csa.ccb_h.func_code = XPT_SASYNC_CB; 371 csa.event_enable = 0; 372 csa.callback = cdasync; 373 csa.callback_arg = periph; 374 xpt_action((union ccb *)&csa); 375 376 softc->flags |= CD_FLAG_INVALID; 377 378 /* 379 * Although the oninvalidate() routines are always called at 380 * splsoftcam, we need to be at splbio() here to keep the buffer 381 * queue from being modified while we traverse it. 382 */ 383 s = splbio(); 384 385 /* 386 * Return all queued I/O with ENXIO. 387 * XXX Handle any transactions queued to the card 388 * with XPT_ABORT_CCB. 389 */ 390 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 391 bufq_remove(&softc->buf_queue, q_bp); 392 q_bp->b_resid = q_bp->b_bcount; 393 q_bp->b_error = ENXIO; 394 q_bp->b_flags |= B_ERROR; 395 biodone(q_bp); 396 } 397 splx(s); 398 399 /* 400 * If this device is part of a changer, and it was scheduled 401 * to run, remove it from the run queue since we just nuked 402 * all of its scheduled I/O. 403 */ 404 if ((softc->flags & CD_FLAG_CHANGER) 405 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 406 camq_remove(&softc->changer->devq, softc->pinfo.index); 407 408 xpt_print_path(periph->path); 409 printf("lost device\n"); 410} 411 412static void 413cdcleanup(struct cam_periph *periph) 414{ 415 struct cd_softc *softc; 416 int s; 417 418 softc = (struct cd_softc *)periph->softc; 419 420 xpt_print_path(periph->path); 421 printf("removing device entry\n"); 422 423 s = splsoftcam(); 424 /* 425 * In the queued, non-active case, the device in question 426 * has already been removed from the changer run queue. Since this 427 * device is active, we need to de-activate it, and schedule 428 * another device to run. (if there is another one to run) 429 */ 430 if ((softc->flags & CD_FLAG_CHANGER) 431 && (softc->flags & CD_FLAG_ACTIVE)) { 432 433 /* 434 * The purpose of the short timeout is soley to determine 435 * whether the current device has finished or not. Well, 436 * since we're removing the active device, we know that it 437 * is finished. So, get rid of the short timeout. 438 * Otherwise, if we're in the time period before the short 439 * timeout fires, and there are no other devices in the 440 * queue to run, there won't be any other device put in the 441 * active slot. i.e., when we call cdrunchangerqueue() 442 * below, it won't do anything. Then, when the short 443 * timeout fires, it'll look at the "current device", which 444 * we are free below, and possibly panic the kernel on a 445 * bogus pointer reference. 446 * 447 * The long timeout doesn't really matter, since we 448 * decrement the qfrozen_cnt to indicate that there is 449 * nothing in the active slot now. Therefore, there won't 450 * be any bogus pointer references there. 451 */ 452 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 453 untimeout(cdshorttimeout, softc->changer, 454 softc->changer->short_handle); 455 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 456 } 457 softc->changer->devq.qfrozen_cnt--; 458 softc->changer->flags |= CHANGER_MANUAL_CALL; 459 cdrunchangerqueue(softc->changer); 460 } 461 462 /* 463 * If we're removing the last device on the changer, go ahead and 464 * remove the changer device structure. 465 */ 466 if ((softc->flags & CD_FLAG_CHANGER) 467 && (--softc->changer->num_devices == 0)) { 468 469 /* 470 * Theoretically, there shouldn't be any timeouts left, but 471 * I'm not completely sure that that will be the case. So, 472 * it won't hurt to check and see if there are any left. 473 */ 474 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 475 untimeout(cdrunchangerqueue, softc->changer, 476 softc->changer->long_handle); 477 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 478 } 479 480 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 481 untimeout(cdshorttimeout, softc->changer, 482 softc->changer->short_handle); 483 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 484 } 485 486 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 487 changer_links); 488 xpt_print_path(periph->path); 489 printf("removing changer entry\n"); 490 free(softc->changer, M_DEVBUF); 491 num_changers--; 492 } 493 devstat_remove_entry(&softc->device_stats); 494 cam_extend_release(cdperiphs, periph->unit_number); 495 free(softc, M_DEVBUF); 496 splx(s); 497} 498 499static void 500cdasync(void *callback_arg, u_int32_t code, 501 struct cam_path *path, void *arg) 502{ 503 struct cam_periph *periph; 504 505 periph = (struct cam_periph *)callback_arg; 506 switch (code) { 507 case AC_FOUND_DEVICE: 508 { 509 struct ccb_getdev *cgd; 510 cam_status status; 511 512 cgd = (struct ccb_getdev *)arg; 513 514 if ((cgd->pd_type != T_CDROM) && (cgd->pd_type != T_WORM)) 515 break; 516 517 /* 518 * Allocate a peripheral instance for 519 * this device and start the probe 520 * process. 521 */ 522 status = cam_periph_alloc(cdregister, cdoninvalidate, 523 cdcleanup, cdstart, 524 "cd", CAM_PERIPH_BIO, 525 cgd->ccb_h.path, cdasync, 526 AC_FOUND_DEVICE, cgd); 527 528 if (status != CAM_REQ_CMP 529 && status != CAM_REQ_INPROG) 530 printf("cdasync: Unable to attach new device " 531 "due to status 0x%x\n", status); 532 533 break; 534 } 535 case AC_LOST_DEVICE: 536 cam_periph_invalidate(periph); 537 break; 538 case AC_SENT_BDR: 539 case AC_BUS_RESET: 540 { 541 struct cd_softc *softc; 542 struct ccb_hdr *ccbh; 543 int s; 544 545 softc = (struct cd_softc *)periph->softc; 546 s = splsoftcam(); 547 /* 548 * Don't fail on the expected unit attention 549 * that will occur. 550 */ 551 softc->flags |= CD_FLAG_RETRY_UA; 552 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 553 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 554 ccbh->ccb_state |= CD_CCB_RETRY_UA; 555 splx(s); 556 break; 557 } 558 case AC_TRANSFER_NEG: 559 case AC_SCSI_AEN: 560 case AC_UNSOL_RESEL: 561 default: 562 break; 563 } 564} 565 566static cam_status 567cdregister(struct cam_periph *periph, void *arg) 568{ 569 struct cd_softc *softc; 570 struct ccb_setasync csa; 571 struct ccb_getdev *cgd; 572 caddr_t match; 573 574 cgd = (struct ccb_getdev *)arg; 575 if (periph == NULL) { 576 printf("cdregister: periph was NULL!!\n"); 577 return(CAM_REQ_CMP_ERR); 578 } 579 if (cgd == NULL) { 580 printf("cdregister: no getdev CCB, can't register device\n"); 581 return(CAM_REQ_CMP_ERR); 582 } 583 584 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 585 586 if (softc == NULL) { 587 printf("cdregister: Unable to probe new device. " 588 "Unable to allocate softc\n"); 589 return(CAM_REQ_CMP_ERR); 590 } 591 592 bzero(softc, sizeof(*softc)); 593 LIST_INIT(&softc->pending_ccbs); 594 softc->state = CD_STATE_PROBE; 595 bufq_init(&softc->buf_queue); 596 if (SID_IS_REMOVABLE(&cgd->inq_data)) 597 softc->flags |= CD_FLAG_DISC_REMOVABLE; 598 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 599 softc->flags |= CD_FLAG_TAGGED_QUEUING; 600 601 periph->softc = softc; 602 softc->periph = periph; 603 604 cam_extend_set(cdperiphs, periph->unit_number, periph); 605 606 /* 607 * See if this device has any quirks. 608 */ 609 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 610 (caddr_t)cd_quirk_table, 611 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 612 sizeof(*cd_quirk_table), scsi_inquiry_match); 613 614 if (match != NULL) 615 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 616 else 617 softc->quirks = CD_Q_NONE; 618 619 /* 620 * We need to register the statistics structure for this device, 621 * but we don't have the blocksize yet for it. So, we register 622 * the structure and indicate that we don't have the blocksize 623 * yet. Unlike other SCSI peripheral drivers, we explicitly set 624 * the device type here to be CDROM, rather than just ORing in 625 * cgd->pd_type. This is because this driver can attach to either 626 * CDROM or WORM devices, and we want this peripheral driver to 627 * show up in the devstat list as a CD peripheral driver, not a 628 * WORM peripheral driver. WORM drives will also have the WORM 629 * driver attached to them. 630 */ 631 devstat_add_entry(&softc->device_stats, "cd", 632 periph->unit_number, 0, 633 DEVSTAT_BS_UNAVAILABLE, 634 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI); 635 636 /* 637 * Add an async callback so that we get 638 * notified if this device goes away. 639 */ 640 xpt_setup_ccb(&csa.ccb_h, periph->path, 641 /* priority */ 5); 642 csa.ccb_h.func_code = XPT_SASYNC_CB; 643 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 644 csa.callback = cdasync; 645 csa.callback_arg = periph; 646 xpt_action((union ccb *)&csa); 647 648 /* 649 * If the target lun is greater than 0, we most likely have a CD 650 * changer device. Check the quirk entries as well, though, just 651 * in case someone has a CD tower with one lun per drive or 652 * something like that. Also, if we know up front that a 653 * particular device is a changer, we can mark it as such starting 654 * with lun 0, instead of lun 1. It shouldn't be necessary to have 655 * a quirk entry to define something as a changer, however. 656 */ 657 if (((cgd->ccb_h.target_lun > 0) 658 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 659 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 660 struct cdchanger *nchanger; 661 struct cam_periph *nperiph; 662 struct cam_path *path; 663 cam_status status; 664 int found; 665 666 /* Set the changer flag in the current device's softc */ 667 softc->flags |= CD_FLAG_CHANGER; 668 669 if (num_changers == 0) 670 STAILQ_INIT(&changerq); 671 672 /* 673 * Now, look around for an existing changer device with the 674 * same path and target ID as the current device. 675 */ 676 for (found = 0, 677 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 678 nchanger != NULL; 679 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 680 if ((nchanger->path_id == cgd->ccb_h.path_id) 681 && (nchanger->target_id == cgd->ccb_h.target_id)) { 682 found = 1; 683 break; 684 } 685 } 686 687 /* 688 * If we found a matching entry, just add this device to 689 * the list of devices on this changer. 690 */ 691 if (found == 1) { 692 struct chdevlist *chlunhead; 693 694 chlunhead = &nchanger->chluns; 695 696 /* 697 * XXX KDM look at consolidating this code with the 698 * code below in a separate function. 699 */ 700 701 /* 702 * Create a path with lun id 0, and see if we can 703 * find a matching device 704 */ 705 status = xpt_create_path(&path, /*periph*/ periph, 706 cgd->ccb_h.path_id, 707 cgd->ccb_h.target_id, 0); 708 709 if ((status == CAM_REQ_CMP) 710 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 711 struct cd_softc *nsoftc; 712 713 nsoftc = (struct cd_softc *)nperiph->softc; 714 715 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 716 nsoftc->flags |= CD_FLAG_CHANGER; 717 nchanger->num_devices++; 718 if (camq_resize(&nchanger->devq, 719 nchanger->num_devices)!=CAM_REQ_CMP){ 720 printf("cdregister: " 721 "camq_resize " 722 "failed, changer " 723 "support may " 724 "be messed up\n"); 725 } 726 nsoftc->changer = nchanger; 727 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 728 729 STAILQ_INSERT_TAIL(&nchanger->chluns, 730 nsoftc,changer_links); 731 } 732 } else if (status == CAM_REQ_CMP) 733 xpt_free_path(path); 734 else { 735 printf("cdregister: unable to allocate path\n" 736 "cdregister: changer support may be " 737 "broken\n"); 738 } 739 740 nchanger->num_devices++; 741 742 softc->changer = nchanger; 743 softc->pinfo.index = CAM_UNQUEUED_INDEX; 744 745 if (camq_resize(&nchanger->devq, 746 nchanger->num_devices) != CAM_REQ_CMP) { 747 printf("cdregister: camq_resize " 748 "failed, changer support may " 749 "be messed up\n"); 750 } 751 752 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 753 } 754 /* 755 * In this case, we don't already have an entry for this 756 * particular changer, so we need to create one, add it to 757 * the queue, and queue this device on the list for this 758 * changer. Before we queue this device, however, we need 759 * to search for lun id 0 on this target, and add it to the 760 * queue first, if it exists. (and if it hasn't already 761 * been marked as part of the changer.) 762 */ 763 else { 764 nchanger = malloc(sizeof(struct cdchanger), 765 M_DEVBUF, M_NOWAIT); 766 767 if (nchanger == NULL) { 768 softc->flags &= ~CD_FLAG_CHANGER; 769 printf("cdregister: unable to malloc " 770 "changer structure\ncdregister: " 771 "changer support disabled\n"); 772 773 /* 774 * Yes, gotos can be gross but in this case 775 * I think it's justified.. 776 */ 777 goto cdregisterexit; 778 } 779 780 /* zero the structure */ 781 bzero(nchanger, sizeof(struct cdchanger)); 782 783 if (camq_init(&nchanger->devq, 1) != 0) { 784 softc->flags &= ~CD_FLAG_CHANGER; 785 printf("cdregister: changer support " 786 "disabled\n"); 787 goto cdregisterexit; 788 } 789 790 num_changers++; 791 792 nchanger->path_id = cgd->ccb_h.path_id; 793 nchanger->target_id = cgd->ccb_h.target_id; 794 795 /* this is superfluous, but it makes things clearer */ 796 nchanger->num_devices = 0; 797 798 STAILQ_INIT(&nchanger->chluns); 799 800 STAILQ_INSERT_TAIL(&changerq, nchanger, 801 changer_links); 802 803 /* 804 * Create a path with lun id 0, and see if we can 805 * find a matching device 806 */ 807 status = xpt_create_path(&path, /*periph*/ periph, 808 cgd->ccb_h.path_id, 809 cgd->ccb_h.target_id, 0); 810 811 /* 812 * If we were able to allocate the path, and if we 813 * find a matching device and it isn't already 814 * marked as part of a changer, then we add it to 815 * the current changer. 816 */ 817 if ((status == CAM_REQ_CMP) 818 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 819 && ((((struct cd_softc *)periph->softc)->flags & 820 CD_FLAG_CHANGER) == 0)) { 821 struct cd_softc *nsoftc; 822 823 nsoftc = (struct cd_softc *)nperiph->softc; 824 825 nsoftc->flags |= CD_FLAG_CHANGER; 826 nchanger->num_devices++; 827 if (camq_resize(&nchanger->devq, 828 nchanger->num_devices) != CAM_REQ_CMP) { 829 printf("cdregister: camq_resize " 830 "failed, changer support may " 831 "be messed up\n"); 832 } 833 nsoftc->changer = nchanger; 834 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 835 836 STAILQ_INSERT_TAIL(&nchanger->chluns, 837 nsoftc, changer_links); 838 } else if (status == CAM_REQ_CMP) 839 xpt_free_path(path); 840 else { 841 printf("cdregister: unable to allocate path\n" 842 "cdregister: changer support may be " 843 "broken\n"); 844 } 845 846 softc->changer = nchanger; 847 softc->pinfo.index = CAM_UNQUEUED_INDEX; 848 nchanger->num_devices++; 849 if (camq_resize(&nchanger->devq, 850 nchanger->num_devices) != CAM_REQ_CMP) { 851 printf("cdregister: camq_resize " 852 "failed, changer support may " 853 "be messed up\n"); 854 } 855 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 856 changer_links); 857 } 858 } 859 860cdregisterexit: 861 862 /* Lock this peripheral until we are setup */ 863 /* Can't block */ 864 cam_periph_lock(periph, PRIBIO); 865 866 if ((softc->flags & CD_FLAG_CHANGER) == 0) 867 xpt_schedule(periph, /*priority*/5); 868 else 869 cdschedule(periph, /*priority*/ 5); 870 871 return(CAM_REQ_CMP); 872} 873 874static int 875cdopen(dev_t dev, int flags, int fmt, struct proc *p) 876{ 877 struct disklabel label; 878 struct cam_periph *periph; 879 struct cd_softc *softc; 880 struct ccb_getdev cgd; 881 u_int32_t size; 882 int unit, error; 883 int s; 884 885 unit = dkunit(dev); 886 periph = cam_extend_get(cdperiphs, unit); 887 888 if (periph == NULL) 889 return (ENXIO); 890 891 softc = (struct cd_softc *)periph->softc; 892 893 /* 894 * Grab splsoftcam and hold it until we lock the peripheral. 895 */ 896 s = splsoftcam(); 897 if (softc->flags & CD_FLAG_INVALID) { 898 splx(s); 899 return(ENXIO); 900 } 901 902 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 903 splx(s); 904 return (error); 905 } 906 907 splx(s); 908 909 if ((softc->flags & CD_FLAG_OPEN) == 0) { 910 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 911 return(ENXIO); 912 softc->flags |= CD_FLAG_OPEN; 913 914 cdprevent(periph, PR_PREVENT); 915 } 916 917 /* find out the size */ 918 if ((error = cdsize(dev, &size)) != 0) { 919 if (dsisopen(softc->cd_slices) == 0) { 920 cdprevent(periph, PR_ALLOW); 921 softc->flags &= ~CD_FLAG_OPEN; 922 } 923 cam_periph_unlock(periph); 924 925 if ((softc->flags & CD_FLAG_OPEN) == 0) 926 cam_periph_release(periph); 927 928 return(error); 929 } 930 931 /* 932 * Build prototype label for whole disk. 933 * Should take information about different data tracks from the 934 * TOC and put it in the partition table. 935 */ 936 bzero(&label, sizeof(label)); 937 label.d_type = DTYPE_SCSI; 938 939 /* 940 * Grab the inquiry data to get the vendor and product names. 941 * Put them in the typename and packname for the label. 942 */ 943 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 944 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 945 xpt_action((union ccb *)&cgd); 946 947 strncpy(label.d_typename, cgd.inq_data.vendor, 948 min(SID_VENDOR_SIZE, sizeof(label.d_typename))); 949 strncpy(label.d_packname, cgd.inq_data.product, 950 min(SID_PRODUCT_SIZE, sizeof(label.d_packname))); 951 952 label.d_secsize = softc->params.blksize; 953 label.d_secperunit = softc->params.disksize; 954 label.d_flags = D_REMOVABLE; 955 /* 956 * Make partition 'a' cover the whole disk. This is a temporary 957 * compatibility hack. The 'a' partition should not exist, so 958 * the slice code won't create it. The slice code will make 959 * partition (RAW_PART + 'a') cover the whole disk and fill in 960 * some more defaults. 961 */ 962 label.d_partitions[0].p_size = label.d_secperunit; 963 label.d_partitions[0].p_fstype = FS_OTHER; 964 965 /* Initialize slice tables. */ 966 error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE, 967 &softc->cd_slices, &label, cdstrategy, 968 (ds_setgeom_t *)NULL, &cd_cdevsw); 969 970 if (error == 0) { 971 /* 972 * We unconditionally (re)set the blocksize each time the 973 * CD device is opened. This is because the CD can change, 974 * and therefore the blocksize might change. 975 * XXX problems here if some slice or partition is still 976 * open with the old size? 977 */ 978 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 979 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 980 softc->device_stats.block_size = softc->params.blksize; 981 } else { 982 if ((dsisopen(softc->cd_slices) == 0) 983 && ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)) 984 cdprevent(periph, PR_ALLOW); 985 } 986 987 cam_periph_unlock(periph); 988 989 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 990 991 return (error); 992} 993 994static int 995cdclose(dev_t dev, int flag, int fmt, struct proc *p) 996{ 997 struct cam_periph *periph; 998 struct cd_softc *softc; 999 int unit, error; 1000 1001 unit = dkunit(dev); 1002 periph = cam_extend_get(cdperiphs, unit); 1003 if (periph == NULL) 1004 return (ENXIO); 1005 1006 softc = (struct cd_softc *)periph->softc; 1007 1008 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 1009 return (error); 1010 1011 dsclose(dev, fmt, softc->cd_slices); 1012 if (dsisopen(softc->cd_slices)) { 1013 cam_periph_unlock(periph); 1014 return (0); 1015 } 1016 1017 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1018 cdprevent(periph, PR_ALLOW); 1019 1020 /* 1021 * Since we're closing this CD, mark the blocksize as unavailable. 1022 * It will be marked as available whence the CD is opened again. 1023 */ 1024 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 1025 1026 softc->flags &= ~CD_FLAG_OPEN; 1027 cam_periph_unlock(periph); 1028 cam_periph_release(periph); 1029 1030 return (0); 1031} 1032 1033static int 1034cdread(dev_t dev, struct uio *uio, int ioflag) 1035{ 1036 return(physio(cdstrategy, NULL, dev, 1, minphys, uio)); 1037} 1038 1039static void 1040cdshorttimeout(void *arg) 1041{ 1042 struct cdchanger *changer; 1043 int s; 1044 1045 s = splsoftcam(); 1046 1047 changer = (struct cdchanger *)arg; 1048 1049 /* Always clear the short timeout flag, since that's what we're in */ 1050 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1051 1052 /* 1053 * Check to see if there is any more pending or outstanding I/O for 1054 * this device. If not, move it out of the active slot. 1055 */ 1056 if ((bufq_first(&changer->cur_device->buf_queue) == NULL) 1057 && (changer->cur_device->device_stats.busy_count == 0)) { 1058 changer->flags |= CHANGER_MANUAL_CALL; 1059 cdrunchangerqueue(changer); 1060 } 1061 1062 splx(s); 1063} 1064 1065/* 1066 * This is a wrapper for xpt_schedule. It only applies to changers. 1067 */ 1068static void 1069cdschedule(struct cam_periph *periph, int priority) 1070{ 1071 struct cd_softc *softc; 1072 int s; 1073 1074 s = splsoftcam(); 1075 1076 softc = (struct cd_softc *)periph->softc; 1077 1078 /* 1079 * If this device isn't currently queued, and if it isn't 1080 * the active device, then we queue this device and run the 1081 * changer queue if there is no timeout scheduled to do it. 1082 * If this device is the active device, just schedule it 1083 * to run again. If this device is queued, there should be 1084 * a timeout in place already that will make sure it runs. 1085 */ 1086 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1087 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1088 /* 1089 * We don't do anything with the priority here. 1090 * This is strictly a fifo queue. 1091 */ 1092 softc->pinfo.priority = 1; 1093 if (softc->changer->devq.generation++ == 0) 1094 camq_regen(&softc->changer->devq); 1095 softc->pinfo.generation = 1096 softc->changer->devq.generation; 1097 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1098 1099 /* 1100 * Since we just put a device in the changer queue, 1101 * check and see if there is a timeout scheduled for 1102 * this changer. If so, let the timeout handle 1103 * switching this device into the active slot. If 1104 * not, manually call the timeout routine to 1105 * bootstrap things. 1106 */ 1107 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1108 &&((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)){ 1109 softc->changer->flags |= CHANGER_MANUAL_CALL; 1110 cdrunchangerqueue(softc->changer); 1111 } 1112 } else if ((softc->flags & CD_FLAG_ACTIVE) 1113 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1114 xpt_schedule(periph, priority); 1115 1116 splx(s); 1117 1118} 1119 1120static void 1121cdrunchangerqueue(void *arg) 1122{ 1123 struct cd_softc *softc; 1124 struct cdchanger *changer; 1125 int called_from_timeout; 1126 int s; 1127 1128 s = splsoftcam(); 1129 1130 changer = (struct cdchanger *)arg; 1131 1132 /* 1133 * If we have NOT been called from cdstrategy() or cddone(), and 1134 * instead from a timeout routine, go ahead and clear the 1135 * timeout flag. 1136 */ 1137 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1138 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1139 called_from_timeout = 1; 1140 } else 1141 called_from_timeout = 0; 1142 1143 /* Always clear the manual call flag */ 1144 changer->flags &= ~CHANGER_MANUAL_CALL; 1145 1146 /* nothing to do if the queue is empty */ 1147 if (changer->devq.entries <= 0) { 1148 splx(s); 1149 return; 1150 } 1151 1152 /* 1153 * If the changer queue is frozen, that means we have an active 1154 * device. 1155 */ 1156 if (changer->devq.qfrozen_cnt > 0) { 1157 1158 if (changer->cur_device->device_stats.busy_count > 0) { 1159 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1160 changer->cur_device->bufs_left = 1161 changer->cur_device->device_stats.busy_count; 1162 if (called_from_timeout) { 1163 changer->long_handle = 1164 timeout(cdrunchangerqueue, changer, 1165 changer_max_busy_seconds * hz); 1166 changer->flags |= CHANGER_TIMEOUT_SCHED; 1167 } 1168 splx(s); 1169 return; 1170 } 1171 1172 /* 1173 * We always need to reset the frozen count and clear the 1174 * active flag. 1175 */ 1176 changer->devq.qfrozen_cnt--; 1177 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1178 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1179 1180 /* 1181 * Check to see whether the current device has any I/O left 1182 * to do. If so, requeue it at the end of the queue. If 1183 * not, there is no need to requeue it. 1184 */ 1185 if (bufq_first(&changer->cur_device->buf_queue) != NULL) { 1186 1187 if (changer->devq.generation++ == 0) 1188 camq_regen(&changer->devq); 1189 1190 changer->cur_device->pinfo.generation = 1191 changer->devq.generation; 1192 camq_insert(&changer->devq, 1193 (cam_pinfo *)changer->cur_device); 1194 } 1195 } 1196 1197 softc = (struct cd_softc *)camq_remove(&changer->devq, 0); 1198 1199 changer->cur_device = softc; 1200 1201 changer->devq.qfrozen_cnt++; 1202 softc->flags |= CD_FLAG_ACTIVE; 1203 1204 /* Just in case this device is waiting */ 1205 wakeup(&softc->changer); 1206 xpt_schedule(softc->periph, /*priority*/ 1); 1207 1208 /* 1209 * Get rid of any pending timeouts, and set a flag to schedule new 1210 * ones so this device gets its full time quantum. 1211 */ 1212 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1213 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1214 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1215 } 1216 1217 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1218 untimeout(cdshorttimeout, changer, changer->short_handle); 1219 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1220 } 1221 1222 /* 1223 * We need to schedule timeouts, but we only do this after the 1224 * first transaction has completed. This eliminates the changer 1225 * switch time. 1226 */ 1227 changer->flags |= CHANGER_NEED_TIMEOUT; 1228 1229 splx(s); 1230} 1231 1232static void 1233cdchangerschedule(struct cd_softc *softc) 1234{ 1235 struct cdchanger *changer; 1236 int s; 1237 1238 s = splsoftcam(); 1239 1240 changer = softc->changer; 1241 1242 /* 1243 * If this is a changer, and this is the current device, 1244 * and this device has at least the minimum time quantum to 1245 * run, see if we can switch it out. 1246 */ 1247 if ((softc->flags & CD_FLAG_ACTIVE) 1248 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1249 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1250 /* 1251 * We try three things here. The first is that we 1252 * check to see whether the schedule on completion 1253 * flag is set. If it is, we decrement the number 1254 * of buffers left, and if it's zero, we reschedule. 1255 * Next, we check to see whether the pending buffer 1256 * queue is empty and whether there are no 1257 * outstanding transactions. If so, we reschedule. 1258 * Next, we see if the pending buffer queue is empty. 1259 * If it is, we set the number of buffers left to 1260 * the current active buffer count and set the 1261 * schedule on complete flag. 1262 */ 1263 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1264 if (--softc->bufs_left == 0) { 1265 softc->changer->flags |= 1266 CHANGER_MANUAL_CALL; 1267 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1268 cdrunchangerqueue(softc->changer); 1269 } 1270 } else if ((bufq_first(&softc->buf_queue) == NULL) 1271 && (softc->device_stats.busy_count == 0)) { 1272 softc->changer->flags |= CHANGER_MANUAL_CALL; 1273 cdrunchangerqueue(softc->changer); 1274 } 1275 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1276 && (softc->flags & CD_FLAG_ACTIVE)) { 1277 1278 /* 1279 * Now that the first transaction to this 1280 * particular device has completed, we can go ahead 1281 * and schedule our timeouts. 1282 */ 1283 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1284 changer->long_handle = 1285 timeout(cdrunchangerqueue, changer, 1286 changer_max_busy_seconds * hz); 1287 changer->flags |= CHANGER_TIMEOUT_SCHED; 1288 } else 1289 printf("cdchangerschedule: already have a long" 1290 " timeout!\n"); 1291 1292 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1293 changer->short_handle = 1294 timeout(cdshorttimeout, changer, 1295 changer_min_busy_seconds * hz); 1296 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1297 } else 1298 printf("cdchangerschedule: already have a short " 1299 "timeout!\n"); 1300 1301 /* 1302 * We just scheduled timeouts, no need to schedule 1303 * more. 1304 */ 1305 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1306 1307 } 1308 splx(s); 1309} 1310 1311static int 1312cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1313 u_int32_t cam_flags, 1314 u_int32_t sense_flags), 1315 u_int32_t cam_flags, u_int32_t sense_flags) 1316{ 1317 struct cd_softc *softc; 1318 struct cam_periph *periph; 1319 int error; 1320 1321 periph = xpt_path_periph(ccb->ccb_h.path); 1322 softc = (struct cd_softc *)periph->softc; 1323 1324 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1325 &softc->device_stats); 1326 1327 if (softc->flags & CD_FLAG_CHANGER) 1328 cdchangerschedule(softc); 1329 1330 return(error); 1331} 1332 1333static union ccb * 1334cdgetccb(struct cam_periph *periph, u_int32_t priority) 1335{ 1336 struct cd_softc *softc; 1337 int s; 1338 1339 softc = (struct cd_softc *)periph->softc; 1340 1341 if (softc->flags & CD_FLAG_CHANGER) { 1342 1343 s = splsoftcam(); 1344 1345 /* 1346 * This should work the first time this device is woken up, 1347 * but just in case it doesn't, we use a while loop. 1348 */ 1349 while ((((volatile cd_flags)softc->flags) & CD_FLAG_ACTIVE)==0){ 1350 /* 1351 * If this changer isn't already queued, queue it up. 1352 */ 1353 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1354 softc->pinfo.priority = 1; 1355 if (softc->changer->devq.generation++ == 0) 1356 camq_regen(&softc->changer->devq); 1357 softc->pinfo.generation = 1358 softc->changer->devq.generation; 1359 camq_insert(&softc->changer->devq, 1360 (cam_pinfo *)softc); 1361 } 1362 if (((((volatile cd_changer_flags)softc->changer->flags) 1363 & CHANGER_TIMEOUT_SCHED)==0) 1364 &&((((volatile cd_changer_flags)softc->changer->flags) 1365 & CHANGER_NEED_TIMEOUT)==0)){ 1366 softc->changer->flags |= CHANGER_MANUAL_CALL; 1367 cdrunchangerqueue(softc->changer); 1368 } else 1369 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1370 } 1371 splx(s); 1372 } 1373 return(cam_periph_getccb(periph, priority)); 1374} 1375 1376 1377/* 1378 * Actually translate the requested transfer into one the physical driver 1379 * can understand. The transfer is described by a buf and will include 1380 * only one physical transfer. 1381 */ 1382static void 1383cdstrategy(struct buf *bp) 1384{ 1385 struct cam_periph *periph; 1386 struct cd_softc *softc; 1387 u_int unit, part; 1388 int s; 1389 1390 unit = dkunit(bp->b_dev); 1391 part = dkpart(bp->b_dev); 1392 periph = cam_extend_get(cdperiphs, unit); 1393 if (periph == NULL) { 1394 bp->b_error = ENXIO; 1395 goto bad; 1396 } 1397 1398 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1399 1400 softc = (struct cd_softc *)periph->softc; 1401 1402 /* 1403 * Do bounds checking, adjust transfer, and set b_pbklno. 1404 */ 1405 if (dscheck(bp, softc->cd_slices) <= 0) 1406 goto done; 1407 1408 /* 1409 * Mask interrupts so that the pack cannot be invalidated until 1410 * after we are in the queue. Otherwise, we might not properly 1411 * clean up one of the buffers. 1412 */ 1413 s = splbio(); 1414 1415 /* 1416 * If the device has been made invalid, error out 1417 */ 1418 if ((softc->flags & CD_FLAG_INVALID)) { 1419 splx(s); 1420 bp->b_error = ENXIO; 1421 goto bad; 1422 } 1423 1424 /* 1425 * Place it in the queue of disk activities for this disk 1426 */ 1427 bufqdisksort(&softc->buf_queue, bp); 1428 1429 splx(s); 1430 1431 /* 1432 * Schedule ourselves for performing the work. We do things 1433 * differently for changers. 1434 */ 1435 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1436 xpt_schedule(periph, /* XXX priority */1); 1437 else 1438 cdschedule(periph, /* priority */ 1); 1439 1440 return; 1441bad: 1442 bp->b_flags |= B_ERROR; 1443done: 1444 /* 1445 * Correctly set the buf to indicate a completed xfer 1446 */ 1447 bp->b_resid = bp->b_bcount; 1448 biodone(bp); 1449 return; 1450} 1451 1452static void 1453cdstrategy1(struct buf *bp) 1454{ 1455 /* 1456 * XXX - do something to make cdstrategy() but not this block while 1457 * we're doing dsopen() and dsioctl(). 1458 */ 1459 cdstrategy(bp); 1460} 1461 1462static void 1463cdstart(struct cam_periph *periph, union ccb *start_ccb) 1464{ 1465 struct cd_softc *softc; 1466 struct buf *bp; 1467 struct ccb_scsiio *csio; 1468 struct scsi_read_capacity_data *rcap; 1469 int s; 1470 1471 softc = (struct cd_softc *)periph->softc; 1472 1473 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1474 1475 switch (softc->state) { 1476 case CD_STATE_NORMAL: 1477 { 1478 int oldspl; 1479 1480 s = splbio(); 1481 bp = bufq_first(&softc->buf_queue); 1482 if (periph->immediate_priority <= periph->pinfo.priority) { 1483 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1484 1485 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1486 periph_links.sle); 1487 periph->immediate_priority = CAM_PRIORITY_NONE; 1488 splx(s); 1489 wakeup(&periph->ccb_list); 1490 } else if (bp == NULL) { 1491 splx(s); 1492 xpt_release_ccb(start_ccb); 1493 } else { 1494 bufq_remove(&softc->buf_queue, bp); 1495 1496 devstat_start_transaction(&softc->device_stats); 1497 1498 scsi_read_write(&start_ccb->csio, 1499 /*retries*/4, 1500 /* cbfcnp */ cddone, 1501 (bp->b_flags & B_ORDERED) != 0 ? 1502 MSG_ORDERED_Q_TAG : 1503 MSG_SIMPLE_Q_TAG, 1504 /* read */bp->b_flags & B_READ, 1505 /* byte2 */ 0, 1506 /* minimum_cmd_size */ 10, 1507 /* lba */ bp->b_pblkno, 1508 bp->b_bcount / softc->params.blksize, 1509 /* data_ptr */ bp->b_data, 1510 /* dxfer_len */ bp->b_bcount, 1511 /* sense_len */ SSD_FULL_SIZE, 1512 /* timeout */ 30000); 1513 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1514 1515 1516 /* 1517 * Block out any asyncronous callbacks 1518 * while we touch the pending ccb list. 1519 */ 1520 oldspl = splcam(); 1521 LIST_INSERT_HEAD(&softc->pending_ccbs, 1522 &start_ccb->ccb_h, periph_links.le); 1523 splx(oldspl); 1524 1525 /* We expect a unit attention from this device */ 1526 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1527 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1528 softc->flags &= ~CD_FLAG_RETRY_UA; 1529 } 1530 1531 start_ccb->ccb_h.ccb_bp = bp; 1532 bp = bufq_first(&softc->buf_queue); 1533 splx(s); 1534 1535 xpt_action(start_ccb); 1536 } 1537 if (bp != NULL) { 1538 /* Have more work to do, so ensure we stay scheduled */ 1539 xpt_schedule(periph, /* XXX priority */1); 1540 } 1541 break; 1542 } 1543 case CD_STATE_PROBE: 1544 { 1545 1546 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1547 M_TEMP, 1548 M_NOWAIT); 1549 if (rcap == NULL) { 1550 xpt_print_path(periph->path); 1551 printf("cdstart: Couldn't malloc read_capacity data\n"); 1552 /* cd_free_periph??? */ 1553 break; 1554 } 1555 csio = &start_ccb->csio; 1556 scsi_read_capacity(csio, 1557 /*retries*/1, 1558 cddone, 1559 MSG_SIMPLE_Q_TAG, 1560 rcap, 1561 SSD_FULL_SIZE, 1562 /*timeout*/20000); 1563 start_ccb->ccb_h.ccb_bp = NULL; 1564 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1565 xpt_action(start_ccb); 1566 break; 1567 } 1568 } 1569} 1570 1571static void 1572cddone(struct cam_periph *periph, union ccb *done_ccb) 1573{ 1574 struct cd_softc *softc; 1575 struct ccb_scsiio *csio; 1576 1577 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1578 1579 softc = (struct cd_softc *)periph->softc; 1580 csio = &done_ccb->csio; 1581 1582 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1583 case CD_CCB_BUFFER_IO: 1584 { 1585 struct buf *bp; 1586 int error; 1587 int oldspl; 1588 1589 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1590 error = 0; 1591 1592 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1593 int sf; 1594 1595 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1596 sf = SF_RETRY_UA; 1597 else 1598 sf = 0; 1599 1600 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) { 1601 /* 1602 * A retry was scheuled, so 1603 * just return. 1604 */ 1605 return; 1606 } 1607 } 1608 1609 if (error != 0) { 1610 int s; 1611 struct buf *q_bp; 1612 1613 xpt_print_path(periph->path); 1614 printf("cddone: got error %#x back\n", error); 1615 s = splbio(); 1616 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { 1617 bufq_remove(&softc->buf_queue, q_bp); 1618 q_bp->b_resid = q_bp->b_bcount; 1619 q_bp->b_error = EIO; 1620 q_bp->b_flags |= B_ERROR; 1621 biodone(q_bp); 1622 } 1623 splx(s); 1624 bp->b_resid = bp->b_bcount; 1625 bp->b_error = error; 1626 bp->b_flags |= B_ERROR; 1627 cam_release_devq(done_ccb->ccb_h.path, 1628 /*relsim_flags*/0, 1629 /*reduction*/0, 1630 /*timeout*/0, 1631 /*getcount_only*/0); 1632 1633 } else { 1634 bp->b_resid = csio->resid; 1635 bp->b_error = 0; 1636 if (bp->b_resid != 0) { 1637 /* Short transfer ??? */ 1638 bp->b_flags |= B_ERROR; 1639 } 1640 } 1641 1642 /* 1643 * Block out any asyncronous callbacks 1644 * while we touch the pending ccb list. 1645 */ 1646 oldspl = splcam(); 1647 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1648 splx(oldspl); 1649 1650 devstat_end_transaction(&softc->device_stats, 1651 bp->b_bcount - bp->b_resid, 1652 done_ccb->csio.tag_action & 0xf, 1653 (bp->b_flags & B_READ) ? DEVSTAT_READ 1654 : DEVSTAT_WRITE); 1655 1656 if (softc->flags & CD_FLAG_CHANGER) 1657 cdchangerschedule(softc); 1658 1659 biodone(bp); 1660 break; 1661 } 1662 case CD_CCB_PROBE: 1663 { 1664 struct scsi_read_capacity_data *rdcap; 1665 char announce_buf[120]; /* 1666 * Currently (9/30/97) the 1667 * longest possible announce 1668 * buffer is 108 bytes, for the 1669 * first error case below. 1670 * That is 39 bytes for the 1671 * basic string, 16 bytes for the 1672 * biggest sense key (hardware 1673 * error), 52 bytes for the 1674 * text of the largest sense 1675 * qualifier valid for a CDROM, 1676 * (0x72, 0x03 or 0x04, 1677 * 0x03), and one byte for the 1678 * null terminating character. 1679 * To allow for longer strings, 1680 * the announce buffer is 120 1681 * bytes. 1682 */ 1683 struct cd_params *cdp; 1684 1685 cdp = &softc->params; 1686 1687 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1688 1689 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1690 cdp->blksize = scsi_4btoul (rdcap->length); 1691 1692 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1693 1694 snprintf(announce_buf, sizeof(announce_buf), 1695 "cd present [%lu x %lu byte records]", 1696 cdp->disksize, (u_long)cdp->blksize); 1697 1698 } else { 1699 int error; 1700 /* 1701 * Retry any UNIT ATTENTION type errors. They 1702 * are expected at boot. 1703 */ 1704 error = cderror(done_ccb, 0, SF_RETRY_UA|SF_NO_PRINT); 1705 if (error == ERESTART) { 1706 /* 1707 * A retry was scheuled, so 1708 * just return. 1709 */ 1710 return; 1711 } else if (error != 0) { 1712 1713 struct scsi_sense_data *sense; 1714 int asc, ascq; 1715 int sense_key, error_code; 1716 int have_sense; 1717 cam_status status; 1718 struct ccb_getdev cgd; 1719 1720 /* Don't wedge this device's queue */ 1721 cam_release_devq(done_ccb->ccb_h.path, 1722 /*relsim_flags*/0, 1723 /*reduction*/0, 1724 /*timeout*/0, 1725 /*getcount_only*/0); 1726 1727 status = done_ccb->ccb_h.status; 1728 1729 xpt_setup_ccb(&cgd.ccb_h, 1730 done_ccb->ccb_h.path, 1731 /* priority */ 1); 1732 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1733 xpt_action((union ccb *)&cgd); 1734 1735 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1736 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1737 || ((status & CAM_AUTOSNS_VALID) == 0)) 1738 have_sense = FALSE; 1739 else 1740 have_sense = TRUE; 1741 1742 if (have_sense) { 1743 sense = &csio->sense_data; 1744 scsi_extract_sense(sense, &error_code, 1745 &sense_key, 1746 &asc, &ascq); 1747 } 1748 /* 1749 * With CDROM devices, we expect 0x3a 1750 * (Medium not present) errors, since not 1751 * everyone leaves a CD in the drive. Some 1752 * broken Philips and HP WORM drives return 1753 * 0x04,0x00 (logical unit not ready, cause 1754 * not reportable), so we accept any "not 1755 * ready" type errors as well. If the error 1756 * is anything else, though, we shouldn't 1757 * attach. 1758 */ 1759 if ((have_sense) 1760 && ((asc == 0x3a) || (asc == 0x04)) 1761 && (error_code == SSD_CURRENT_ERROR)) 1762 snprintf(announce_buf, 1763 sizeof(announce_buf), 1764 "Attempt to query device " 1765 "size failed: %s, %s", 1766 scsi_sense_key_text[sense_key], 1767 scsi_sense_desc(asc,ascq, 1768 &cgd.inq_data)); 1769 else if (cgd.pd_type == T_CDROM) { 1770 /* 1771 * We only print out an error for 1772 * CDROM type devices. For WORM 1773 * devices, we don't print out an 1774 * error since a few WORM devices 1775 * don't support CDROM commands. 1776 * If we have sense information, go 1777 * ahead and print it out. 1778 * Otherwise, just say that we 1779 * couldn't attach. 1780 */ 1781 1782 /* 1783 * Just print out the error, not 1784 * the full probe message, when we 1785 * don't attach. 1786 */ 1787 if (have_sense) 1788 scsi_sense_print( 1789 &done_ccb->csio); 1790 else { 1791 xpt_print_path(periph->path); 1792 printf("got CAM status %#x\n", 1793 done_ccb->ccb_h.status); 1794 } 1795 xpt_print_path(periph->path); 1796 printf("fatal error, failed" 1797 " to attach to device\n"); 1798 1799 /* 1800 * Invalidate this peripheral. 1801 */ 1802 cam_periph_invalidate(periph); 1803 1804 announce_buf[0] = '\0'; 1805 } else { 1806 1807 /* 1808 * Invalidate this peripheral. 1809 */ 1810 cam_periph_invalidate(periph); 1811 announce_buf[0] = '\0'; 1812 } 1813 } 1814 } 1815 free(rdcap, M_TEMP); 1816 if (announce_buf[0] != '\0') 1817 xpt_announce_periph(periph, announce_buf); 1818 softc->state = CD_STATE_NORMAL; 1819 if (softc->flags & CD_FLAG_CHANGER) 1820 cdchangerschedule(softc); 1821 cam_periph_unlock(periph); 1822 1823 break; 1824 } 1825 case CD_CCB_WAITING: 1826 { 1827 /* Caller will release the CCB */ 1828 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1829 ("trying to wakeup ccbwait\n")); 1830 1831 wakeup(&done_ccb->ccb_h.cbfcnp); 1832 return; 1833 } 1834 } 1835 xpt_release_ccb(done_ccb); 1836} 1837 1838static int 1839cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1840{ 1841 1842 struct cam_periph *periph; 1843 struct cd_softc *softc; 1844 int error, unit; 1845 1846 unit = dkunit(dev); 1847 1848 periph = cam_extend_get(cdperiphs, unit); 1849 if (periph == NULL) 1850 return(ENXIO); 1851 1852 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1853 1854 softc = (struct cd_softc *)periph->softc; 1855 1856 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1857 ("trying to do ioctl %#lx\n", cmd)); 1858 1859 error = cam_periph_lock(periph, PRIBIO | PCATCH); 1860 1861 if (error != 0) 1862 return(error); 1863 1864 switch (cmd) { 1865 1866 case CDIOCPLAYTRACKS: 1867 { 1868 struct ioc_play_track *args 1869 = (struct ioc_play_track *) addr; 1870 struct cd_mode_data *data; 1871 1872 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1873 M_WAITOK); 1874 1875 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1876 ("trying to do CDIOCPLAYTRACKS\n")); 1877 1878 error = cdgetmode(periph, data, AUDIO_PAGE); 1879 if (error) { 1880 free(data, M_TEMP); 1881 break; 1882 } 1883 data->page.audio.flags &= ~CD_PA_SOTC; 1884 data->page.audio.flags |= CD_PA_IMMED; 1885 error = cdsetmode(periph, data); 1886 free(data, M_TEMP); 1887 if (error) 1888 break; 1889 if (softc->quirks & CD_Q_BCD_TRACKS) { 1890 args->start_track = bin2bcd(args->start_track); 1891 args->end_track = bin2bcd(args->end_track); 1892 } 1893 error = cdplaytracks(periph, 1894 args->start_track, 1895 args->start_index, 1896 args->end_track, 1897 args->end_index); 1898 } 1899 break; 1900 case CDIOCPLAYMSF: 1901 { 1902 struct ioc_play_msf *args 1903 = (struct ioc_play_msf *) addr; 1904 struct cd_mode_data *data; 1905 1906 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1907 M_WAITOK); 1908 1909 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1910 ("trying to do CDIOCPLAYMSF\n")); 1911 1912 error = cdgetmode(periph, data, AUDIO_PAGE); 1913 if (error) { 1914 free(data, M_TEMP); 1915 break; 1916 } 1917 data->page.audio.flags &= ~CD_PA_SOTC; 1918 data->page.audio.flags |= CD_PA_IMMED; 1919 error = cdsetmode(periph, data); 1920 free(data, M_TEMP); 1921 if (error) 1922 break; 1923 error = cdplaymsf(periph, 1924 args->start_m, 1925 args->start_s, 1926 args->start_f, 1927 args->end_m, 1928 args->end_s, 1929 args->end_f); 1930 } 1931 break; 1932 case CDIOCPLAYBLOCKS: 1933 { 1934 struct ioc_play_blocks *args 1935 = (struct ioc_play_blocks *) addr; 1936 struct cd_mode_data *data; 1937 1938 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1939 ("trying to do CDIOCPLAYBLOCKS\n")); 1940 1941 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1942 M_WAITOK); 1943 1944 error = cdgetmode(periph, data, AUDIO_PAGE); 1945 if (error) { 1946 free(data, M_TEMP); 1947 break; 1948 } 1949 data->page.audio.flags &= ~CD_PA_SOTC; 1950 data->page.audio.flags |= CD_PA_IMMED; 1951 error = cdsetmode(periph, data); 1952 free(data, M_TEMP); 1953 if (error) 1954 break; 1955 error = cdplay(periph, args->blk, args->len); 1956 } 1957 break; 1958 case CDIOCREADSUBCHANNEL: 1959 { 1960 struct ioc_read_subchannel *args 1961 = (struct ioc_read_subchannel *) addr; 1962 struct cd_sub_channel_info *data; 1963 u_int32_t len = args->data_len; 1964 1965 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1966 ("trying to do CDIOCREADSUBCHANNEL\n")); 1967 1968 data = malloc(sizeof(struct cd_sub_channel_info), 1969 M_TEMP, M_WAITOK); 1970 1971 if ((len > sizeof(struct cd_sub_channel_info)) || 1972 (len < sizeof(struct cd_sub_channel_header))) { 1973 printf( 1974 "scsi_cd: cdioctl: " 1975 "cdioreadsubchannel: error, len=%d\n", 1976 len); 1977 error = EINVAL; 1978 free(data, M_TEMP); 1979 break; 1980 } 1981 1982 if (softc->quirks & CD_Q_BCD_TRACKS) 1983 args->track = bin2bcd(args->track); 1984 1985 error = cdreadsubchannel(periph, args->address_format, 1986 args->data_format, args->track, data, len); 1987 1988 if (error) { 1989 free(data, M_TEMP); 1990 break; 1991 } 1992 if (softc->quirks & CD_Q_BCD_TRACKS) 1993 data->what.track_info.track_number = 1994 bcd2bin(data->what.track_info.track_number); 1995 len = min(len, ((data->header.data_len[0] << 8) + 1996 data->header.data_len[1] + 1997 sizeof(struct cd_sub_channel_header))); 1998 if (copyout(data, args->data, len) != 0) { 1999 error = EFAULT; 2000 } 2001 free(data, M_TEMP); 2002 } 2003 break; 2004 2005 case CDIOREADTOCHEADER: 2006 { 2007 struct ioc_toc_header *th; 2008 2009 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2010 ("trying to do CDIOREADTOCHEADER\n")); 2011 2012 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 2013 M_WAITOK); 2014 error = cdreadtoc(periph, 0, 0, 2015 (struct cd_toc_entry *)th, 2016 sizeof (*th)); 2017 if (error) { 2018 free(th, M_TEMP); 2019 break; 2020 } 2021 if (softc->quirks & CD_Q_BCD_TRACKS) { 2022 /* we are going to have to convert the BCD 2023 * encoding on the cd to what is expected 2024 */ 2025 th->starting_track = 2026 bcd2bin(th->starting_track); 2027 th->ending_track = bcd2bin(th->ending_track); 2028 } 2029 NTOHS(th->len); 2030 bcopy(th, addr, sizeof(*th)); 2031 free(th, M_TEMP); 2032 } 2033 break; 2034 case CDIOREADTOCENTRYS: 2035 { 2036 typedef struct { 2037 struct ioc_toc_header header; 2038 struct cd_toc_entry entries[100]; 2039 } data_t; 2040 typedef struct { 2041 struct ioc_toc_header header; 2042 struct cd_toc_entry entry; 2043 } lead_t; 2044 2045 data_t *data; 2046 lead_t *lead; 2047 struct ioc_read_toc_entry *te = 2048 (struct ioc_read_toc_entry *) addr; 2049 struct ioc_toc_header *th; 2050 u_int32_t len, readlen, idx, num; 2051 u_int32_t starting_track = te->starting_track; 2052 2053 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2054 ("trying to do CDIOREADTOCENTRYS\n")); 2055 2056 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2057 lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK); 2058 2059 if (te->data_len < sizeof(struct cd_toc_entry) 2060 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2061 || (te->address_format != CD_MSF_FORMAT 2062 && te->address_format != CD_LBA_FORMAT)) { 2063 error = EINVAL; 2064 printf("scsi_cd: error in readtocentries, " 2065 "returning EINVAL\n"); 2066 free(data, M_TEMP); 2067 free(lead, M_TEMP); 2068 break; 2069 } 2070 2071 th = &data->header; 2072 error = cdreadtoc(periph, 0, 0, 2073 (struct cd_toc_entry *)th, 2074 sizeof (*th)); 2075 if (error) { 2076 free(data, M_TEMP); 2077 free(lead, M_TEMP); 2078 break; 2079 } 2080 2081 if (softc->quirks & CD_Q_BCD_TRACKS) { 2082 /* we are going to have to convert the BCD 2083 * encoding on the cd to what is expected 2084 */ 2085 th->starting_track = 2086 bcd2bin(th->starting_track); 2087 th->ending_track = bcd2bin(th->ending_track); 2088 } 2089 2090 if (starting_track == 0) 2091 starting_track = th->starting_track; 2092 else if (starting_track == LEADOUT) 2093 starting_track = th->ending_track + 1; 2094 else if (starting_track < th->starting_track || 2095 starting_track > th->ending_track + 1) { 2096 printf("scsi_cd: error in readtocentries, " 2097 "returning EINVAL\n"); 2098 free(data, M_TEMP); 2099 free(lead, M_TEMP); 2100 error = EINVAL; 2101 break; 2102 } 2103 2104 /* calculate reading length without leadout entry */ 2105 readlen = (th->ending_track - starting_track + 1) * 2106 sizeof(struct cd_toc_entry); 2107 2108 /* and with leadout entry */ 2109 len = readlen + sizeof(struct cd_toc_entry); 2110 if (te->data_len < len) { 2111 len = te->data_len; 2112 if (readlen > len) 2113 readlen = len; 2114 } 2115 if (len > sizeof(data->entries)) { 2116 printf("scsi_cd: error in readtocentries, " 2117 "returning EINVAL\n"); 2118 error = EINVAL; 2119 free(data, M_TEMP); 2120 free(lead, M_TEMP); 2121 break; 2122 } 2123 num = len / sizeof(struct cd_toc_entry); 2124 2125 if (readlen > 0) { 2126 error = cdreadtoc(periph, te->address_format, 2127 starting_track, 2128 (struct cd_toc_entry *)data, 2129 readlen + sizeof (*th)); 2130 if (error) { 2131 free(data, M_TEMP); 2132 free(lead, M_TEMP); 2133 break; 2134 } 2135 } 2136 2137 /* make leadout entry if needed */ 2138 idx = starting_track + num - 1; 2139 if (softc->quirks & CD_Q_BCD_TRACKS) 2140 th->ending_track = bcd2bin(th->ending_track); 2141 if (idx == th->ending_track + 1) { 2142 error = cdreadtoc(periph, te->address_format, 2143 LEADOUT, 2144 (struct cd_toc_entry *)lead, 2145 sizeof(*lead)); 2146 if (error) { 2147 free(data, M_TEMP); 2148 free(lead, M_TEMP); 2149 break; 2150 } 2151 data->entries[idx - starting_track] = 2152 lead->entry; 2153 } 2154 if (softc->quirks & CD_Q_BCD_TRACKS) { 2155 for (idx = 0; idx < num - 1; idx++) { 2156 data->entries[idx].track = 2157 bcd2bin(data->entries[idx].track); 2158 } 2159 } 2160 2161 error = copyout(data->entries, te->data, len); 2162 free(data, M_TEMP); 2163 free(lead, M_TEMP); 2164 } 2165 break; 2166 case CDIOREADTOCENTRY: 2167 { 2168 /* yeah yeah, this is ugly */ 2169 typedef struct { 2170 struct ioc_toc_header header; 2171 struct cd_toc_entry entry; 2172 } data_t; 2173 2174 data_t *data; 2175 struct ioc_read_toc_single_entry *te = 2176 (struct ioc_read_toc_single_entry *) addr; 2177 struct ioc_toc_header *th; 2178 u_int32_t track; 2179 2180 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2181 ("trying to do CDIOREADTOCENTRY\n")); 2182 2183 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2184 2185 if (te->address_format != CD_MSF_FORMAT 2186 && te->address_format != CD_LBA_FORMAT) { 2187 printf("error in readtocentry, " 2188 " returning EINVAL\n"); 2189 free(data, M_TEMP); 2190 error = EINVAL; 2191 break; 2192 } 2193 2194 th = &data->header; 2195 error = cdreadtoc(periph, 0, 0, 2196 (struct cd_toc_entry *)th, 2197 sizeof (*th)); 2198 if (error) { 2199 free(data, M_TEMP); 2200 break; 2201 } 2202 2203 if (softc->quirks & CD_Q_BCD_TRACKS) { 2204 /* we are going to have to convert the BCD 2205 * encoding on the cd to what is expected 2206 */ 2207 th->starting_track = 2208 bcd2bin(th->starting_track); 2209 th->ending_track = bcd2bin(th->ending_track); 2210 } 2211 track = te->track; 2212 if (track == 0) 2213 track = th->starting_track; 2214 else if (track == LEADOUT) 2215 /* OK */; 2216 else if (track < th->starting_track || 2217 track > th->ending_track + 1) { 2218 printf("error in readtocentry, " 2219 " returning EINVAL\n"); 2220 free(data, M_TEMP); 2221 error = EINVAL; 2222 break; 2223 } 2224 2225 error = cdreadtoc(periph, te->address_format, track, 2226 (struct cd_toc_entry *)data, 2227 sizeof(data_t)); 2228 if (error) { 2229 free(data, M_TEMP); 2230 break; 2231 } 2232 2233 if (softc->quirks & CD_Q_BCD_TRACKS) 2234 data->entry.track = bcd2bin(data->entry.track); 2235 bcopy(&data->entry, &te->entry, 2236 sizeof(struct cd_toc_entry)); 2237 free(data, M_TEMP); 2238 } 2239 break; 2240 case CDIOCSETPATCH: 2241 { 2242 struct ioc_patch *arg = (struct ioc_patch *) addr; 2243 struct cd_mode_data *data; 2244 2245 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2246 ("trying to do CDIOCSETPATCH\n")); 2247 2248 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2249 M_WAITOK); 2250 error = cdgetmode(periph, data, AUDIO_PAGE); 2251 if (error) { 2252 free(data, M_TEMP); 2253 break; 2254 } 2255 data->page.audio.port[LEFT_PORT].channels = 2256 arg->patch[0]; 2257 data->page.audio.port[RIGHT_PORT].channels = 2258 arg->patch[1]; 2259 data->page.audio.port[2].channels = arg->patch[2]; 2260 data->page.audio.port[3].channels = arg->patch[3]; 2261 error = cdsetmode(periph, data); 2262 free(data, M_TEMP); 2263 } 2264 break; 2265 case CDIOCGETVOL: 2266 { 2267 struct ioc_vol *arg = (struct ioc_vol *) addr; 2268 struct cd_mode_data *data; 2269 2270 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2271 ("trying to do CDIOCGETVOL\n")); 2272 2273 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2274 M_WAITOK); 2275 error = cdgetmode(periph, data, AUDIO_PAGE); 2276 if (error) { 2277 free(data, M_TEMP); 2278 break; 2279 } 2280 arg->vol[LEFT_PORT] = 2281 data->page.audio.port[LEFT_PORT].volume; 2282 arg->vol[RIGHT_PORT] = 2283 data->page.audio.port[RIGHT_PORT].volume; 2284 arg->vol[2] = data->page.audio.port[2].volume; 2285 arg->vol[3] = data->page.audio.port[3].volume; 2286 free(data, M_TEMP); 2287 } 2288 break; 2289 case CDIOCSETVOL: 2290 { 2291 struct ioc_vol *arg = (struct ioc_vol *) addr; 2292 struct cd_mode_data *data; 2293 2294 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2295 ("trying to do CDIOCSETVOL\n")); 2296 2297 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2298 M_WAITOK); 2299 error = cdgetmode(periph, data, AUDIO_PAGE); 2300 if (error) { 2301 free(data, M_TEMP); 2302 break; 2303 } 2304 data->page.audio.port[LEFT_PORT].channels = CHANNEL_0; 2305 data->page.audio.port[LEFT_PORT].volume = 2306 arg->vol[LEFT_PORT]; 2307 data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1; 2308 data->page.audio.port[RIGHT_PORT].volume = 2309 arg->vol[RIGHT_PORT]; 2310 data->page.audio.port[2].volume = arg->vol[2]; 2311 data->page.audio.port[3].volume = arg->vol[3]; 2312 error = cdsetmode(periph, data); 2313 free(data, M_TEMP); 2314 } 2315 break; 2316 case CDIOCSETMONO: 2317 { 2318 struct cd_mode_data *data; 2319 2320 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2321 ("trying to do CDIOCSETMONO\n")); 2322 2323 data = malloc(sizeof(struct cd_mode_data), 2324 M_TEMP, M_WAITOK); 2325 error = cdgetmode(periph, data, AUDIO_PAGE); 2326 if (error) { 2327 free(data, M_TEMP); 2328 break; 2329 } 2330 data->page.audio.port[LEFT_PORT].channels = 2331 LEFT_CHANNEL | RIGHT_CHANNEL; 2332 data->page.audio.port[RIGHT_PORT].channels = 2333 LEFT_CHANNEL | RIGHT_CHANNEL; 2334 data->page.audio.port[2].channels = 0; 2335 data->page.audio.port[3].channels = 0; 2336 error = cdsetmode(periph, data); 2337 free(data, M_TEMP); 2338 } 2339 break; 2340 case CDIOCSETSTEREO: 2341 { 2342 struct cd_mode_data *data; 2343 2344 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2345 ("trying to do CDIOCSETSTEREO\n")); 2346 2347 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2348 M_WAITOK); 2349 error = cdgetmode(periph, data, AUDIO_PAGE); 2350 if (error) { 2351 free(data, M_TEMP); 2352 break; 2353 } 2354 data->page.audio.port[LEFT_PORT].channels = 2355 LEFT_CHANNEL; 2356 data->page.audio.port[RIGHT_PORT].channels = 2357 RIGHT_CHANNEL; 2358 data->page.audio.port[2].channels = 0; 2359 data->page.audio.port[3].channels = 0; 2360 error = cdsetmode(periph, data); 2361 free(data, M_TEMP); 2362 } 2363 break; 2364 case CDIOCSETMUTE: 2365 { 2366 struct cd_mode_data *data; 2367 2368 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2369 ("trying to do CDIOCSETMUTE\n")); 2370 2371 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2372 M_WAITOK); 2373 error = cdgetmode(periph, data, AUDIO_PAGE); 2374 if (error) { 2375 free(data, M_TEMP); 2376 break; 2377 } 2378 data->page.audio.port[LEFT_PORT].channels = 0; 2379 data->page.audio.port[RIGHT_PORT].channels = 0; 2380 data->page.audio.port[2].channels = 0; 2381 data->page.audio.port[3].channels = 0; 2382 error = cdsetmode(periph, data); 2383 free(data, M_TEMP); 2384 } 2385 break; 2386 case CDIOCSETLEFT: 2387 { 2388 struct cd_mode_data *data; 2389 2390 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2391 ("trying to do CDIOCSETLEFT\n")); 2392 2393 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2394 M_WAITOK); 2395 error = cdgetmode(periph, data, AUDIO_PAGE); 2396 if (error) { 2397 free(data, M_TEMP); 2398 break; 2399 } 2400 data->page.audio.port[LEFT_PORT].channels = 2401 LEFT_CHANNEL; 2402 data->page.audio.port[RIGHT_PORT].channels = 2403 LEFT_CHANNEL; 2404 data->page.audio.port[2].channels = 0; 2405 data->page.audio.port[3].channels = 0; 2406 error = cdsetmode(periph, data); 2407 free(data, M_TEMP); 2408 } 2409 break; 2410 case CDIOCSETRIGHT: 2411 { 2412 struct cd_mode_data *data; 2413 2414 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2415 ("trying to do CDIOCSETRIGHT\n")); 2416 2417 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2418 M_WAITOK); 2419 error = cdgetmode(periph, data, AUDIO_PAGE); 2420 if (error) { 2421 free(data, M_TEMP); 2422 break; 2423 } 2424 data->page.audio.port[LEFT_PORT].channels = 2425 RIGHT_CHANNEL; 2426 data->page.audio.port[RIGHT_PORT].channels = 2427 RIGHT_CHANNEL; 2428 data->page.audio.port[2].channels = 0; 2429 data->page.audio.port[3].channels = 0; 2430 error = cdsetmode(periph, data); 2431 free(data, M_TEMP); 2432 } 2433 break; 2434 case CDIOCRESUME: 2435 error = cdpause(periph, 1); 2436 break; 2437 case CDIOCPAUSE: 2438 error = cdpause(periph, 0); 2439 break; 2440 case CDIOCSTART: 2441 error = cdstartunit(periph); 2442 break; 2443 case CDIOCSTOP: 2444 error = cdstopunit(periph, 0); 2445 break; 2446 case CDIOCEJECT: 2447 error = cdstopunit(periph, 1); 2448 break; 2449 case CDIOCALLOW: 2450 cdprevent(periph, PR_ALLOW); 2451 break; 2452 case CDIOCPREVENT: 2453 cdprevent(periph, PR_PREVENT); 2454 break; 2455 case CDIOCSETDEBUG: 2456 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2457 error = ENOTTY; 2458 break; 2459 case CDIOCCLRDEBUG: 2460 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2461 error = ENOTTY; 2462 break; 2463 case CDIOCRESET: 2464 /* return (cd_reset(periph)); */ 2465 error = ENOTTY; 2466 break; 2467 default: 2468 if (cmd == DIOCSBAD) { 2469 error = EINVAL; /* XXX */ 2470 break; 2471 } 2472 2473 /* 2474 * Check to see whether we've got a disk-type ioctl. If we 2475 * don't, dsioctl will pass back an error code of ENOIOCTL. 2476 */ 2477 error = dsioctl("cd", dev, cmd, addr, flag, &softc->cd_slices, 2478 cdstrategy, (ds_setgeom_t *)NULL); 2479 2480 if (error != ENOIOCTL) 2481 break; 2482 2483 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2484 break; 2485 } 2486 2487 cam_periph_unlock(periph); 2488 2489 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2490 2491 return (error); 2492} 2493 2494static void 2495cdprevent(struct cam_periph *periph, int action) 2496{ 2497 union ccb *ccb; 2498 struct cd_softc *softc; 2499 int error; 2500 2501 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2502 2503 softc = (struct cd_softc *)periph->softc; 2504 2505 if (((action == PR_ALLOW) 2506 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2507 || ((action == PR_PREVENT) 2508 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2509 return; 2510 } 2511 2512 ccb = cdgetccb(periph, /* priority */ 1); 2513 2514 scsi_prevent(&ccb->csio, 2515 /*retries*/ 1, 2516 cddone, 2517 MSG_SIMPLE_Q_TAG, 2518 action, 2519 SSD_FULL_SIZE, 2520 /* timeout */60000); 2521 2522 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2523 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2524 2525 xpt_release_ccb(ccb); 2526 2527 if (error == 0) { 2528 if (action == PR_ALLOW) 2529 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2530 else 2531 softc->flags |= CD_FLAG_DISC_LOCKED; 2532 } 2533} 2534 2535static int 2536cdsize(dev_t dev, u_int32_t *size) 2537{ 2538 struct cam_periph *periph; 2539 struct cd_softc *softc; 2540 union ccb *ccb; 2541 struct scsi_read_capacity_data *rcap_buf; 2542 int error; 2543 2544 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2545 2546 if (periph == NULL) 2547 return (ENXIO); 2548 2549 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2550 2551 softc = (struct cd_softc *)periph->softc; 2552 2553 ccb = cdgetccb(periph, /* priority */ 1); 2554 2555 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2556 M_TEMP, M_WAITOK); 2557 2558 scsi_read_capacity(&ccb->csio, 2559 /*retries*/ 1, 2560 cddone, 2561 MSG_SIMPLE_Q_TAG, 2562 rcap_buf, 2563 SSD_FULL_SIZE, 2564 /* timeout */20000); 2565 2566 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2567 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2568 2569 xpt_release_ccb(ccb); 2570 2571 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2572 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2573 2574 free(rcap_buf, M_TEMP); 2575 *size = softc->params.disksize; 2576 2577 return (error); 2578 2579} 2580 2581static int 2582cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2583{ 2584 struct cd_softc *softc; 2585 struct cam_periph *periph; 2586 2587 periph = xpt_path_periph(ccb->ccb_h.path); 2588 softc = (struct cd_softc *)periph->softc; 2589 2590 /* 2591 * XXX 2592 * Until we have a better way of doing pack validation, 2593 * don't treat UAs as errors. 2594 */ 2595 sense_flags |= SF_RETRY_UA; 2596 return (cam_periph_error(ccb, cam_flags, sense_flags, 2597 &softc->saved_ccb)); 2598} 2599 2600/* 2601 * Read table of contents 2602 */ 2603static int 2604cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 2605 struct cd_toc_entry *data, u_int32_t len) 2606{ 2607 struct scsi_read_toc *scsi_cmd; 2608 u_int32_t ntoc; 2609 struct ccb_scsiio *csio; 2610 union ccb *ccb; 2611 int error; 2612 2613 ntoc = len; 2614 error = 0; 2615 2616 ccb = cdgetccb(periph, /* priority */ 1); 2617 2618 csio = &ccb->csio; 2619 2620 cam_fill_csio(csio, 2621 /* retries */ 1, 2622 /* cbfcnp */ cddone, 2623 /* flags */ CAM_DIR_IN, 2624 /* tag_action */ MSG_SIMPLE_Q_TAG, 2625 /* data_ptr */ (u_int8_t *)data, 2626 /* dxfer_len */ len, 2627 /* sense_len */ SSD_FULL_SIZE, 2628 sizeof(struct scsi_read_toc), 2629 /* timeout */ 50000); 2630 2631 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 2632 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2633 2634 if (mode == CD_MSF_FORMAT) 2635 scsi_cmd->byte2 |= CD_MSF; 2636 scsi_cmd->from_track = start; 2637 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 2638 scsi_cmd->data_len[0] = (ntoc) >> 8; 2639 scsi_cmd->data_len[1] = (ntoc) & 0xff; 2640 2641 scsi_cmd->op_code = READ_TOC; 2642 2643 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2644 /*sense_flags*/SF_RETRY_UA); 2645 2646 xpt_release_ccb(ccb); 2647 2648 return(error); 2649} 2650 2651static int 2652cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 2653 u_int32_t format, int track, 2654 struct cd_sub_channel_info *data, u_int32_t len) 2655{ 2656 struct scsi_read_subchannel *scsi_cmd; 2657 struct ccb_scsiio *csio; 2658 union ccb *ccb; 2659 int error; 2660 2661 error = 0; 2662 2663 ccb = cdgetccb(periph, /* priority */ 1); 2664 2665 csio = &ccb->csio; 2666 2667 cam_fill_csio(csio, 2668 /* retries */ 1, 2669 /* cbfcnp */ cddone, 2670 /* flags */ CAM_DIR_IN, 2671 /* tag_action */ MSG_SIMPLE_Q_TAG, 2672 /* data_ptr */ (u_int8_t *)data, 2673 /* dxfer_len */ len, 2674 /* sense_len */ SSD_FULL_SIZE, 2675 sizeof(struct scsi_read_subchannel), 2676 /* timeout */ 50000); 2677 2678 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 2679 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2680 2681 scsi_cmd->op_code = READ_SUBCHANNEL; 2682 if (mode == CD_MSF_FORMAT) 2683 scsi_cmd->byte1 |= CD_MSF; 2684 scsi_cmd->byte2 = SRS_SUBQ; 2685 scsi_cmd->subchan_format = format; 2686 scsi_cmd->track = track; 2687 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 2688 scsi_cmd->control = 0; 2689 2690 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2691 /*sense_flags*/SF_RETRY_UA); 2692 2693 xpt_release_ccb(ccb); 2694 2695 return(error); 2696} 2697 2698 2699static int 2700cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page) 2701{ 2702 struct scsi_mode_sense_6 *scsi_cmd; 2703 struct ccb_scsiio *csio; 2704 union ccb *ccb; 2705 int error; 2706 2707 ccb = cdgetccb(periph, /* priority */ 1); 2708 2709 csio = &ccb->csio; 2710 2711 bzero(data, sizeof(*data)); 2712 cam_fill_csio(csio, 2713 /* retries */ 1, 2714 /* cbfcnp */ cddone, 2715 /* flags */ CAM_DIR_IN, 2716 /* tag_action */ MSG_SIMPLE_Q_TAG, 2717 /* data_ptr */ (u_int8_t *)data, 2718 /* dxfer_len */ sizeof(*data), 2719 /* sense_len */ SSD_FULL_SIZE, 2720 sizeof(struct scsi_mode_sense_6), 2721 /* timeout */ 50000); 2722 2723 scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes; 2724 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2725 2726 scsi_cmd->page = page; 2727 scsi_cmd->length = sizeof(*data) & 0xff; 2728 scsi_cmd->opcode = MODE_SENSE; 2729 2730 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2731 /*sense_flags*/SF_RETRY_UA); 2732 2733 xpt_release_ccb(ccb); 2734 2735 return(error); 2736} 2737 2738static int 2739cdsetmode(struct cam_periph *periph, struct cd_mode_data *data) 2740{ 2741 struct scsi_mode_select_6 *scsi_cmd; 2742 struct ccb_scsiio *csio; 2743 union ccb *ccb; 2744 int error; 2745 2746 ccb = cdgetccb(periph, /* priority */ 1); 2747 2748 csio = &ccb->csio; 2749 2750 error = 0; 2751 2752 cam_fill_csio(csio, 2753 /* retries */ 1, 2754 /* cbfcnp */ cddone, 2755 /* flags */ CAM_DIR_OUT, 2756 /* tag_action */ MSG_SIMPLE_Q_TAG, 2757 /* data_ptr */ (u_int8_t *)data, 2758 /* dxfer_len */ sizeof(*data), 2759 /* sense_len */ SSD_FULL_SIZE, 2760 sizeof(struct scsi_mode_select_6), 2761 /* timeout */ 50000); 2762 2763 scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes; 2764 2765 bzero(scsi_cmd, sizeof(*scsi_cmd)); 2766 scsi_cmd->opcode = MODE_SELECT; 2767 scsi_cmd->byte2 |= SMS_PF; 2768 scsi_cmd->length = sizeof(*data) & 0xff; 2769 data->header.data_length = 0; 2770 /* 2771 * SONY drives do not allow a mode select with a medium_type 2772 * value that has just been returned by a mode sense; use a 2773 * medium_type of 0 (Default) instead. 2774 */ 2775 data->header.medium_type = 0; 2776 2777 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2778 /*sense_flags*/SF_RETRY_UA); 2779 2780 xpt_release_ccb(ccb); 2781 2782 return(error); 2783} 2784 2785 2786static int 2787cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 2788{ 2789 struct ccb_scsiio *csio; 2790 union ccb *ccb; 2791 int error; 2792 u_int8_t cdb_len; 2793 2794 error = 0; 2795 ccb = cdgetccb(periph, /* priority */ 1); 2796 csio = &ccb->csio; 2797 /* 2798 * Use the smallest possible command to perform the operation. 2799 */ 2800 if ((len & 0xffff0000) == 0) { 2801 /* 2802 * We can fit in a 10 byte cdb. 2803 */ 2804 struct scsi_play_10 *scsi_cmd; 2805 2806 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 2807 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2808 scsi_cmd->op_code = PLAY_10; 2809 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2810 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 2811 cdb_len = sizeof(*scsi_cmd); 2812 } else { 2813 struct scsi_play_12 *scsi_cmd; 2814 2815 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 2816 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2817 scsi_cmd->op_code = PLAY_12; 2818 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2819 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 2820 cdb_len = sizeof(*scsi_cmd); 2821 } 2822 cam_fill_csio(csio, 2823 /*retries*/2, 2824 cddone, 2825 /*flags*/CAM_DIR_NONE, 2826 MSG_SIMPLE_Q_TAG, 2827 /*dataptr*/NULL, 2828 /*datalen*/0, 2829 /*sense_len*/SSD_FULL_SIZE, 2830 cdb_len, 2831 /*timeout*/50 * 1000); 2832 2833 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2834 /*sense_flags*/SF_RETRY_UA); 2835 2836 xpt_release_ccb(ccb); 2837 2838 return(error); 2839} 2840 2841static int 2842cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 2843 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 2844{ 2845 struct scsi_play_msf *scsi_cmd; 2846 struct ccb_scsiio *csio; 2847 union ccb *ccb; 2848 int error; 2849 2850 error = 0; 2851 2852 ccb = cdgetccb(periph, /* priority */ 1); 2853 2854 csio = &ccb->csio; 2855 2856 cam_fill_csio(csio, 2857 /* retries */ 1, 2858 /* cbfcnp */ cddone, 2859 /* flags */ CAM_DIR_NONE, 2860 /* tag_action */ MSG_SIMPLE_Q_TAG, 2861 /* data_ptr */ NULL, 2862 /* dxfer_len */ 0, 2863 /* sense_len */ SSD_FULL_SIZE, 2864 sizeof(struct scsi_play_msf), 2865 /* timeout */ 50000); 2866 2867 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 2868 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2869 2870 scsi_cmd->op_code = PLAY_MSF; 2871 scsi_cmd->start_m = startm; 2872 scsi_cmd->start_s = starts; 2873 scsi_cmd->start_f = startf; 2874 scsi_cmd->end_m = endm; 2875 scsi_cmd->end_s = ends; 2876 scsi_cmd->end_f = endf; 2877 2878 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2879 /*sense_flags*/SF_RETRY_UA); 2880 2881 xpt_release_ccb(ccb); 2882 2883 return(error); 2884} 2885 2886 2887static int 2888cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 2889 u_int32_t etrack, u_int32_t eindex) 2890{ 2891 struct scsi_play_track *scsi_cmd; 2892 struct ccb_scsiio *csio; 2893 union ccb *ccb; 2894 int error; 2895 2896 error = 0; 2897 2898 ccb = cdgetccb(periph, /* priority */ 1); 2899 2900 csio = &ccb->csio; 2901 2902 cam_fill_csio(csio, 2903 /* retries */ 1, 2904 /* cbfcnp */ cddone, 2905 /* flags */ CAM_DIR_NONE, 2906 /* tag_action */ MSG_SIMPLE_Q_TAG, 2907 /* data_ptr */ NULL, 2908 /* dxfer_len */ 0, 2909 /* sense_len */ SSD_FULL_SIZE, 2910 sizeof(struct scsi_play_track), 2911 /* timeout */ 50000); 2912 2913 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 2914 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2915 2916 scsi_cmd->op_code = PLAY_TRACK; 2917 scsi_cmd->start_track = strack; 2918 scsi_cmd->start_index = sindex; 2919 scsi_cmd->end_track = etrack; 2920 scsi_cmd->end_index = eindex; 2921 2922 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2923 /*sense_flags*/SF_RETRY_UA); 2924 2925 xpt_release_ccb(ccb); 2926 2927 return(error); 2928} 2929 2930static int 2931cdpause(struct cam_periph *periph, u_int32_t go) 2932{ 2933 struct scsi_pause *scsi_cmd; 2934 struct ccb_scsiio *csio; 2935 union ccb *ccb; 2936 int error; 2937 2938 error = 0; 2939 2940 ccb = cdgetccb(periph, /* priority */ 1); 2941 2942 csio = &ccb->csio; 2943 2944 cam_fill_csio(csio, 2945 /* retries */ 1, 2946 /* cbfcnp */ cddone, 2947 /* flags */ CAM_DIR_NONE, 2948 /* tag_action */ MSG_SIMPLE_Q_TAG, 2949 /* data_ptr */ NULL, 2950 /* dxfer_len */ 0, 2951 /* sense_len */ SSD_FULL_SIZE, 2952 sizeof(struct scsi_pause), 2953 /* timeout */ 50000); 2954 2955 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 2956 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2957 2958 scsi_cmd->op_code = PAUSE; 2959 scsi_cmd->resume = go; 2960 2961 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2962 /*sense_flags*/SF_RETRY_UA); 2963 2964 xpt_release_ccb(ccb); 2965 2966 return(error); 2967} 2968 2969static int 2970cdstartunit(struct cam_periph *periph) 2971{ 2972 union ccb *ccb; 2973 int error; 2974 2975 error = 0; 2976 2977 ccb = cdgetccb(periph, /* priority */ 1); 2978 2979 scsi_start_stop(&ccb->csio, 2980 /* retries */ 1, 2981 /* cbfcnp */ cddone, 2982 /* tag_action */ MSG_SIMPLE_Q_TAG, 2983 /* start */ TRUE, 2984 /* load_eject */ TRUE, 2985 /* immediate */ FALSE, 2986 /* sense_len */ SSD_FULL_SIZE, 2987 /* timeout */ 50000); 2988 2989 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2990 /*sense_flags*/SF_RETRY_UA); 2991 2992 xpt_release_ccb(ccb); 2993 2994 return(error); 2995} 2996 2997static int 2998cdstopunit(struct cam_periph *periph, u_int32_t eject) 2999{ 3000 union ccb *ccb; 3001 int error; 3002 3003 error = 0; 3004 3005 ccb = cdgetccb(periph, /* priority */ 1); 3006 3007 scsi_start_stop(&ccb->csio, 3008 /* retries */ 1, 3009 /* cbfcnp */ cddone, 3010 /* tag_action */ MSG_SIMPLE_Q_TAG, 3011 /* start */ FALSE, 3012 /* load_eject */ eject, 3013 /* immediate */ FALSE, 3014 /* sense_len */ SSD_FULL_SIZE, 3015 /* timeout */ 50000); 3016 3017 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 3018 /*sense_flags*/SF_RETRY_UA); 3019 3020 xpt_release_ccb(ccb); 3021 3022 return(error); 3023} 3024