1 /* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999 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 1.22 1999/05/30 16:51:00 phk 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 77 struct cd_params { 78 u_int32_t blksize; 79 u_long disksize; 80 }; 81 82 typedef 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 90 typedef 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; 102 103 typedef 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; 110 111 typedef 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 120 121 typedef enum { 122 CD_STATE_PROBE, 123 CD_STATE_NORMAL 124 } cd_state; 125 126 struct cd_softc { 127 cam_pinfo pinfo; 128 cd_state state; 129 volatile 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 }; 142 143 struct 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 */ 156 static 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 6 178 179 static d_open_t cdopen; 180 static d_close_t cdclose; 181 static d_ioctl_t cdioctl; 182 static d_strategy_t cdstrategy; 183 static d_strategy_t cdstrategy1; 184 185 static periph_init_t cdinit; 186 static periph_ctor_t cdregister; 187 static periph_dtor_t cdcleanup; 188 static periph_start_t cdstart; 189 static periph_oninv_t cdoninvalidate; 190 static void cdasync(void *callback_arg, u_int32_t code, 191 struct cam_path *path, void *arg); 192 static void cdshorttimeout(void *arg); 193 static void cdschedule(struct cam_periph *periph, int priority); 194 static void cdrunchangerqueue(void *arg); 195 static void cdchangerschedule(struct cd_softc *softc); 196 static int cdrunccb(union ccb *ccb, 197 int (*error_routine)(union ccb *ccb, 198 u_int32_t cam_flags, 199 u_int32_t sense_flags), 200 u_int32_t cam_flags, u_int32_t sense_flags); 201 static union ccb *cdgetccb(struct cam_periph *periph, 202 u_int32_t priority); 203 static void cddone(struct cam_periph *periph, 204 union ccb *start_ccb); 205 static int cderror(union ccb *ccb, u_int32_t cam_flags, 206 u_int32_t sense_flags); 207 static void cdprevent(struct cam_periph *periph, int action); 208 static int cdsize(dev_t dev, u_int32_t *size); 209 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 210 u_int32_t start, struct cd_toc_entry *data, 211 u_int32_t len); 212 static int cdgetmode(struct cam_periph *periph, 213 struct cd_mode_data *data, u_int32_t page); 214 static int cdsetmode(struct cam_periph *periph, 215 struct cd_mode_data *data); 216 static int cdplay(struct cam_periph *periph, u_int32_t blk, 217 u_int32_t len); 218 static int cdreadsubchannel(struct cam_periph *periph, 219 u_int32_t mode, u_int32_t format, 220 int track, 221 struct cd_sub_channel_info *data, 222 u_int32_t len); 223 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 224 u_int32_t starts, u_int32_t startf, 225 u_int32_t endm, u_int32_t ends, 226 u_int32_t endf); 227 static int cdplaytracks(struct cam_periph *periph, 228 u_int32_t strack, u_int32_t sindex, 229 u_int32_t etrack, u_int32_t eindex); 230 static int cdpause(struct cam_periph *periph, u_int32_t go); 231 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 232 static int cdstartunit(struct cam_periph *periph); 233 234 static struct periph_driver cddriver = 235 { 236 cdinit, "cd", 237 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 238 }; 239 240 DATA_SET(periphdriver_set, cddriver); 241 242 /* For 2.2-stable support */ 243 #ifndef D_DISK 244 #define D_DISK 0 245 #endif 246 static struct cdevsw cd_cdevsw = { 247 /* open */ cdopen, 248 /* close */ cdclose, 249 /* read */ physread, 250 /* write */ nowrite, 251 /* ioctl */ cdioctl, 252 /* stop */ nostop, 253 /* reset */ noreset, 254 /* devtotty */ nodevtotty, 255 /* poll */ nopoll, 256 /* mmap */ nommap, 257 /* strategy */ cdstrategy, 258 /* name */ "cd", 259 /* parms */ noparms, 260 /* maj */ CD_CDEV_MAJOR, 261 /* dump */ nodump, 262 /* psize */ nopsize, 263 /* flags */ D_DISK, 264 /* maxio */ 0, 265 /* bmaj */ CD_BDEV_MAJOR 266 }; 267 268 static struct extend_array *cdperiphs; 269 static int num_changers; 270 271 #ifndef CHANGER_MIN_BUSY_SECONDS 272 #define CHANGER_MIN_BUSY_SECONDS 5 273 #endif 274 #ifndef CHANGER_MAX_BUSY_SECONDS 275 #define CHANGER_MAX_BUSY_SECONDS 15 276 #endif 277 278 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 279 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 280 281 /* 282 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl 283 * variables. 284 */ 285 SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 286 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 287 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 288 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 289 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 290 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 291 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 292 293 struct cdchanger { 294 path_id_t path_id; 295 target_id_t target_id; 296 int num_devices; 297 struct camq devq; 298 struct timeval start_time; 299 struct cd_softc *cur_device; 300 struct callout_handle short_handle; 301 struct callout_handle long_handle; 302 volatile cd_changer_flags flags; 303 STAILQ_ENTRY(cdchanger) changer_links; 304 STAILQ_HEAD(chdevlist, cd_softc) chluns; 305 }; 306 307 static STAILQ_HEAD(changerlist, cdchanger) changerq; 308 309 void 310 cdinit(void) 311 { 312 cam_status status; 313 struct cam_path *path; 314 315 /* 316 * Create our extend array for storing the devices we attach to. 317 */ 318 cdperiphs = cam_extend_new(); 319 if (cdperiphs == NULL) { 320 printf("cd: Failed to alloc extend array!\n"); 321 return; 322 } 323 324 /* 325 * Install a global async callback. This callback will 326 * receive async callbacks like "new device found". 327 */ 328 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 329 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 330 331 if (status == CAM_REQ_CMP) { 332 struct ccb_setasync csa; 333 334 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 335 csa.ccb_h.func_code = XPT_SASYNC_CB; 336 csa.event_enable = AC_FOUND_DEVICE; 337 csa.callback = cdasync; 338 csa.callback_arg = NULL; 339 xpt_action((union ccb *)&csa); 340 status = csa.ccb_h.status; 341 xpt_free_path(path); 342 } 343 344 if (status != CAM_REQ_CMP) { 345 printf("cd: Failed to attach master async callback " 346 "due to status 0x%x!\n", status); 347 } else { 348 /* If we were successfull, register our devsw */ 349 cdevsw_add(&cd_cdevsw); 350 } 351 } 352 353 static void 354 cdoninvalidate(struct cam_periph *periph) 355 { 356 int s; 357 struct cd_softc *softc; 358 struct buf *q_bp; 359 struct ccb_setasync csa; 360 361 softc = (struct cd_softc *)periph->softc; 362 363 /* 364 * De-register any async callbacks. 365 */ 366 xpt_setup_ccb(&csa.ccb_h, periph->path, 367 /* priority */ 5); 368 csa.ccb_h.func_code = XPT_SASYNC_CB; 369 csa.event_enable = 0; 370 csa.callback = cdasync; 371 csa.callback_arg = periph; 372 xpt_action((union ccb *)&csa); 373 374 softc->flags |= CD_FLAG_INVALID; 375 376 /* 377 * Although the oninvalidate() routines are always called at 378 * splsoftcam, we need to be at splbio() here to keep the buffer 379 * queue from being modified while we traverse it. 380 */ 381 s = splbio(); 382 383 /* 384 * Return all queued I/O with ENXIO. 385 * XXX Handle any transactions queued to the card 386 * with XPT_ABORT_CCB. 387 */ 388 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 389 bufq_remove(&softc->buf_queue, q_bp); 390 q_bp->b_resid = q_bp->b_bcount; 391 q_bp->b_error = ENXIO; 392 q_bp->b_flags |= B_ERROR; 393 biodone(q_bp); 394 } 395 splx(s); 396 397 /* 398 * If this device is part of a changer, and it was scheduled 399 * to run, remove it from the run queue since we just nuked 400 * all of its scheduled I/O. 401 */ 402 if ((softc->flags & CD_FLAG_CHANGER) 403 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 404 camq_remove(&softc->changer->devq, softc->pinfo.index); 405 406 xpt_print_path(periph->path); 407 printf("lost device\n"); 408 } 409 410 static void 411 cdcleanup(struct cam_periph *periph) 412 { 413 struct cd_softc *softc; 414 int s; 415 416 softc = (struct cd_softc *)periph->softc; 417 418 xpt_print_path(periph->path); 419 printf("removing device entry\n"); 420 421 s = splsoftcam(); 422 /* 423 * In the queued, non-active case, the device in question 424 * has already been removed from the changer run queue. Since this 425 * device is active, we need to de-activate it, and schedule 426 * another device to run. (if there is another one to run) 427 */ 428 if ((softc->flags & CD_FLAG_CHANGER) 429 && (softc->flags & CD_FLAG_ACTIVE)) { 430 431 /* 432 * The purpose of the short timeout is soley to determine 433 * whether the current device has finished or not. Well, 434 * since we're removing the active device, we know that it 435 * is finished. So, get rid of the short timeout. 436 * Otherwise, if we're in the time period before the short 437 * timeout fires, and there are no other devices in the 438 * queue to run, there won't be any other device put in the 439 * active slot. i.e., when we call cdrunchangerqueue() 440 * below, it won't do anything. Then, when the short 441 * timeout fires, it'll look at the "current device", which 442 * we are free below, and possibly panic the kernel on a 443 * bogus pointer reference. 444 * 445 * The long timeout doesn't really matter, since we 446 * decrement the qfrozen_cnt to indicate that there is 447 * nothing in the active slot now. Therefore, there won't 448 * be any bogus pointer references there. 449 */ 450 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 451 untimeout(cdshorttimeout, softc->changer, 452 softc->changer->short_handle); 453 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 454 } 455 softc->changer->devq.qfrozen_cnt--; 456 softc->changer->flags |= CHANGER_MANUAL_CALL; 457 cdrunchangerqueue(softc->changer); 458 } 459 460 /* 461 * If we're removing the last device on the changer, go ahead and 462 * remove the changer device structure. 463 */ 464 if ((softc->flags & CD_FLAG_CHANGER) 465 && (--softc->changer->num_devices == 0)) { 466 467 /* 468 * Theoretically, there shouldn't be any timeouts left, but 469 * I'm not completely sure that that will be the case. So, 470 * it won't hurt to check and see if there are any left. 471 */ 472 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 473 untimeout(cdrunchangerqueue, softc->changer, 474 softc->changer->long_handle); 475 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 476 } 477 478 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 479 untimeout(cdshorttimeout, softc->changer, 480 softc->changer->short_handle); 481 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 482 } 483 484 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 485 changer_links); 486 xpt_print_path(periph->path); 487 printf("removing changer entry\n"); 488 free(softc->changer, M_DEVBUF); 489 num_changers--; 490 } 491 devstat_remove_entry(&softc->device_stats); 492 cam_extend_release(cdperiphs, periph->unit_number); 493 free(softc, M_DEVBUF); 494 splx(s); 495 } 496 497 static void 498 cdasync(void *callback_arg, u_int32_t code, 499 struct cam_path *path, void *arg) 500 { 501 struct cam_periph *periph; 502 503 periph = (struct cam_periph *)callback_arg; 504 switch (code) { 505 case AC_FOUND_DEVICE: 506 { 507 struct ccb_getdev *cgd; 508 cam_status status; 509 510 cgd = (struct ccb_getdev *)arg; 511 512 if ((cgd->pd_type != T_CDROM) && (cgd->pd_type != T_WORM)) 513 break; 514 515 /* 516 * Allocate a peripheral instance for 517 * this device and start the probe 518 * process. 519 */ 520 status = cam_periph_alloc(cdregister, cdoninvalidate, 521 cdcleanup, cdstart, 522 "cd", CAM_PERIPH_BIO, 523 cgd->ccb_h.path, cdasync, 524 AC_FOUND_DEVICE, cgd); 525 526 if (status != CAM_REQ_CMP 527 && status != CAM_REQ_INPROG) 528 printf("cdasync: Unable to attach new device " 529 "due to status 0x%x\n", status); 530 531 break; 532 } 533 case AC_SENT_BDR: 534 case AC_BUS_RESET: 535 { 536 struct cd_softc *softc; 537 struct ccb_hdr *ccbh; 538 int s; 539 540 softc = (struct cd_softc *)periph->softc; 541 s = splsoftcam(); 542 /* 543 * Don't fail on the expected unit attention 544 * that will occur. 545 */ 546 softc->flags |= CD_FLAG_RETRY_UA; 547 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 548 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 549 ccbh->ccb_state |= CD_CCB_RETRY_UA; 550 splx(s); 551 /* FALLTHROUGH */ 552 } 553 default: 554 cam_periph_async(periph, code, path, arg); 555 break; 556 } 557 } 558 559 static cam_status 560 cdregister(struct cam_periph *periph, void *arg) 561 { 562 struct cd_softc *softc; 563 struct ccb_setasync csa; 564 struct ccb_getdev *cgd; 565 caddr_t match; 566 567 cgd = (struct ccb_getdev *)arg; 568 if (periph == NULL) { 569 printf("cdregister: periph was NULL!!\n"); 570 return(CAM_REQ_CMP_ERR); 571 } 572 if (cgd == NULL) { 573 printf("cdregister: no getdev CCB, can't register device\n"); 574 return(CAM_REQ_CMP_ERR); 575 } 576 577 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 578 579 if (softc == NULL) { 580 printf("cdregister: Unable to probe new device. " 581 "Unable to allocate softc\n"); 582 return(CAM_REQ_CMP_ERR); 583 } 584 585 bzero(softc, sizeof(*softc)); 586 LIST_INIT(&softc->pending_ccbs); 587 softc->state = CD_STATE_PROBE; 588 bufq_init(&softc->buf_queue); 589 if (SID_IS_REMOVABLE(&cgd->inq_data)) 590 softc->flags |= CD_FLAG_DISC_REMOVABLE; 591 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 592 softc->flags |= CD_FLAG_TAGGED_QUEUING; 593 594 periph->softc = softc; 595 softc->periph = periph; 596 597 cam_extend_set(cdperiphs, periph->unit_number, periph); 598 599 /* 600 * See if this device has any quirks. 601 */ 602 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 603 (caddr_t)cd_quirk_table, 604 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 605 sizeof(*cd_quirk_table), scsi_inquiry_match); 606 607 if (match != NULL) 608 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 609 else 610 softc->quirks = CD_Q_NONE; 611 612 /* 613 * We need to register the statistics structure for this device, 614 * but we don't have the blocksize yet for it. So, we register 615 * the structure and indicate that we don't have the blocksize 616 * yet. Unlike other SCSI peripheral drivers, we explicitly set 617 * the device type here to be CDROM, rather than just ORing in 618 * cgd->pd_type. This is because this driver can attach to either 619 * CDROM or WORM devices, and we want this peripheral driver to 620 * show up in the devstat list as a CD peripheral driver, not a 621 * WORM peripheral driver. WORM drives will also have the WORM 622 * driver attached to them. 623 */ 624 devstat_add_entry(&softc->device_stats, "cd", 625 periph->unit_number, 0, 626 DEVSTAT_BS_UNAVAILABLE, 627 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 628 DEVSTAT_PRIORITY_CD); 629 630 /* 631 * Add an async callback so that we get 632 * notified if this device goes away. 633 */ 634 xpt_setup_ccb(&csa.ccb_h, periph->path, 635 /* priority */ 5); 636 csa.ccb_h.func_code = XPT_SASYNC_CB; 637 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 638 csa.callback = cdasync; 639 csa.callback_arg = periph; 640 xpt_action((union ccb *)&csa); 641 642 /* 643 * If the target lun is greater than 0, we most likely have a CD 644 * changer device. Check the quirk entries as well, though, just 645 * in case someone has a CD tower with one lun per drive or 646 * something like that. Also, if we know up front that a 647 * particular device is a changer, we can mark it as such starting 648 * with lun 0, instead of lun 1. It shouldn't be necessary to have 649 * a quirk entry to define something as a changer, however. 650 */ 651 if (((cgd->ccb_h.target_lun > 0) 652 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 653 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 654 struct cdchanger *nchanger; 655 struct cam_periph *nperiph; 656 struct cam_path *path; 657 cam_status status; 658 int found; 659 660 /* Set the changer flag in the current device's softc */ 661 softc->flags |= CD_FLAG_CHANGER; 662 663 if (num_changers == 0) 664 STAILQ_INIT(&changerq); 665 666 /* 667 * Now, look around for an existing changer device with the 668 * same path and target ID as the current device. 669 */ 670 for (found = 0, 671 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 672 nchanger != NULL; 673 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 674 if ((nchanger->path_id == cgd->ccb_h.path_id) 675 && (nchanger->target_id == cgd->ccb_h.target_id)) { 676 found = 1; 677 break; 678 } 679 } 680 681 /* 682 * If we found a matching entry, just add this device to 683 * the list of devices on this changer. 684 */ 685 if (found == 1) { 686 struct chdevlist *chlunhead; 687 688 chlunhead = &nchanger->chluns; 689 690 /* 691 * XXX KDM look at consolidating this code with the 692 * code below in a separate function. 693 */ 694 695 /* 696 * Create a path with lun id 0, and see if we can 697 * find a matching device 698 */ 699 status = xpt_create_path(&path, /*periph*/ periph, 700 cgd->ccb_h.path_id, 701 cgd->ccb_h.target_id, 0); 702 703 if ((status == CAM_REQ_CMP) 704 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 705 struct cd_softc *nsoftc; 706 707 nsoftc = (struct cd_softc *)nperiph->softc; 708 709 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 710 nsoftc->flags |= CD_FLAG_CHANGER; 711 nchanger->num_devices++; 712 if (camq_resize(&nchanger->devq, 713 nchanger->num_devices)!=CAM_REQ_CMP){ 714 printf("cdregister: " 715 "camq_resize " 716 "failed, changer " 717 "support may " 718 "be messed up\n"); 719 } 720 nsoftc->changer = nchanger; 721 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 722 723 STAILQ_INSERT_TAIL(&nchanger->chluns, 724 nsoftc,changer_links); 725 } 726 } else if (status == CAM_REQ_CMP) 727 xpt_free_path(path); 728 else { 729 printf("cdregister: unable to allocate path\n" 730 "cdregister: changer support may be " 731 "broken\n"); 732 } 733 734 nchanger->num_devices++; 735 736 softc->changer = nchanger; 737 softc->pinfo.index = CAM_UNQUEUED_INDEX; 738 739 if (camq_resize(&nchanger->devq, 740 nchanger->num_devices) != CAM_REQ_CMP) { 741 printf("cdregister: camq_resize " 742 "failed, changer support may " 743 "be messed up\n"); 744 } 745 746 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 747 } 748 /* 749 * In this case, we don't already have an entry for this 750 * particular changer, so we need to create one, add it to 751 * the queue, and queue this device on the list for this 752 * changer. Before we queue this device, however, we need 753 * to search for lun id 0 on this target, and add it to the 754 * queue first, if it exists. (and if it hasn't already 755 * been marked as part of the changer.) 756 */ 757 else { 758 nchanger = malloc(sizeof(struct cdchanger), 759 M_DEVBUF, M_NOWAIT); 760 761 if (nchanger == NULL) { 762 softc->flags &= ~CD_FLAG_CHANGER; 763 printf("cdregister: unable to malloc " 764 "changer structure\ncdregister: " 765 "changer support disabled\n"); 766 767 /* 768 * Yes, gotos can be gross but in this case 769 * I think it's justified.. 770 */ 771 goto cdregisterexit; 772 } 773 774 /* zero the structure */ 775 bzero(nchanger, sizeof(struct cdchanger)); 776 777 if (camq_init(&nchanger->devq, 1) != 0) { 778 softc->flags &= ~CD_FLAG_CHANGER; 779 printf("cdregister: changer support " 780 "disabled\n"); 781 goto cdregisterexit; 782 } 783 784 num_changers++; 785 786 nchanger->path_id = cgd->ccb_h.path_id; 787 nchanger->target_id = cgd->ccb_h.target_id; 788 789 /* this is superfluous, but it makes things clearer */ 790 nchanger->num_devices = 0; 791 792 STAILQ_INIT(&nchanger->chluns); 793 794 STAILQ_INSERT_TAIL(&changerq, nchanger, 795 changer_links); 796 797 /* 798 * Create a path with lun id 0, and see if we can 799 * find a matching device 800 */ 801 status = xpt_create_path(&path, /*periph*/ periph, 802 cgd->ccb_h.path_id, 803 cgd->ccb_h.target_id, 0); 804 805 /* 806 * If we were able to allocate the path, and if we 807 * find a matching device and it isn't already 808 * marked as part of a changer, then we add it to 809 * the current changer. 810 */ 811 if ((status == CAM_REQ_CMP) 812 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 813 && ((((struct cd_softc *)periph->softc)->flags & 814 CD_FLAG_CHANGER) == 0)) { 815 struct cd_softc *nsoftc; 816 817 nsoftc = (struct cd_softc *)nperiph->softc; 818 819 nsoftc->flags |= CD_FLAG_CHANGER; 820 nchanger->num_devices++; 821 if (camq_resize(&nchanger->devq, 822 nchanger->num_devices) != CAM_REQ_CMP) { 823 printf("cdregister: camq_resize " 824 "failed, changer support may " 825 "be messed up\n"); 826 } 827 nsoftc->changer = nchanger; 828 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 829 830 STAILQ_INSERT_TAIL(&nchanger->chluns, 831 nsoftc, changer_links); 832 } else if (status == CAM_REQ_CMP) 833 xpt_free_path(path); 834 else { 835 printf("cdregister: unable to allocate path\n" 836 "cdregister: changer support may be " 837 "broken\n"); 838 } 839 840 softc->changer = nchanger; 841 softc->pinfo.index = CAM_UNQUEUED_INDEX; 842 nchanger->num_devices++; 843 if (camq_resize(&nchanger->devq, 844 nchanger->num_devices) != CAM_REQ_CMP) { 845 printf("cdregister: camq_resize " 846 "failed, changer support may " 847 "be messed up\n"); 848 } 849 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 850 changer_links); 851 } 852 } 853 854 cdregisterexit: 855 856 /* Lock this peripheral until we are setup */ 857 /* Can't block */ 858 cam_periph_lock(periph, PRIBIO); 859 860 if ((softc->flags & CD_FLAG_CHANGER) == 0) 861 xpt_schedule(periph, /*priority*/5); 862 else 863 cdschedule(periph, /*priority*/ 5); 864 865 return(CAM_REQ_CMP); 866 } 867 868 static int 869 cdopen(dev_t dev, int flags, int fmt, struct proc *p) 870 { 871 struct disklabel label; 872 struct cam_periph *periph; 873 struct cd_softc *softc; 874 struct ccb_getdev cgd; 875 u_int32_t size; 876 int unit, error; 877 int s; 878 879 unit = dkunit(dev); 880 periph = cam_extend_get(cdperiphs, unit); 881 882 if (periph == NULL) 883 return (ENXIO); 884 885 softc = (struct cd_softc *)periph->softc; 886 887 /* 888 * Grab splsoftcam and hold it until we lock the peripheral. 889 */ 890 s = splsoftcam(); 891 if (softc->flags & CD_FLAG_INVALID) { 892 splx(s); 893 return(ENXIO); 894 } 895 896 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 897 splx(s); 898 return (error); 899 } 900 901 splx(s); 902 903 if ((softc->flags & CD_FLAG_OPEN) == 0) { 904 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 905 return(ENXIO); 906 softc->flags |= CD_FLAG_OPEN; 907 908 cdprevent(periph, PR_PREVENT); 909 } 910 911 /* find out the size */ 912 if ((error = cdsize(dev, &size)) != 0) { 913 if (dsisopen(softc->cd_slices) == 0) { 914 cdprevent(periph, PR_ALLOW); 915 softc->flags &= ~CD_FLAG_OPEN; 916 } 917 cam_periph_unlock(periph); 918 919 if ((softc->flags & CD_FLAG_OPEN) == 0) 920 cam_periph_release(periph); 921 922 return(error); 923 } 924 925 /* 926 * Build prototype label for whole disk. 927 * Should take information about different data tracks from the 928 * TOC and put it in the partition table. 929 */ 930 bzero(&label, sizeof(label)); 931 label.d_type = DTYPE_SCSI; 932 933 /* 934 * Grab the inquiry data to get the vendor and product names. 935 * Put them in the typename and packname for the label. 936 */ 937 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 938 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 939 xpt_action((union ccb *)&cgd); 940 941 strncpy(label.d_typename, cgd.inq_data.vendor, 942 min(SID_VENDOR_SIZE, sizeof(label.d_typename))); 943 strncpy(label.d_packname, cgd.inq_data.product, 944 min(SID_PRODUCT_SIZE, sizeof(label.d_packname))); 945 946 label.d_secsize = softc->params.blksize; 947 label.d_secperunit = softc->params.disksize; 948 label.d_flags = D_REMOVABLE; 949 /* 950 * Make partition 'a' cover the whole disk. This is a temporary 951 * compatibility hack. The 'a' partition should not exist, so 952 * the slice code won't create it. The slice code will make 953 * partition (RAW_PART + 'a') cover the whole disk and fill in 954 * some more defaults. 955 */ 956 label.d_partitions[0].p_size = label.d_secperunit; 957 label.d_partitions[0].p_fstype = FS_OTHER; 958 959 /* Initialize slice tables. */ 960 error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE, 961 &softc->cd_slices, &label, cdstrategy1, 962 (ds_setgeom_t *)NULL, &cd_cdevsw); 963 964 if (error == 0) { 965 /* 966 * We unconditionally (re)set the blocksize each time the 967 * CD device is opened. This is because the CD can change, 968 * and therefore the blocksize might change. 969 * XXX problems here if some slice or partition is still 970 * open with the old size? 971 */ 972 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 973 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 974 softc->device_stats.block_size = softc->params.blksize; 975 } else { 976 if ((dsisopen(softc->cd_slices) == 0) 977 && ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)) 978 cdprevent(periph, PR_ALLOW); 979 } 980 981 cam_periph_unlock(periph); 982 983 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 984 985 return (error); 986 } 987 988 static int 989 cdclose(dev_t dev, int flag, int fmt, struct proc *p) 990 { 991 struct cam_periph *periph; 992 struct cd_softc *softc; 993 int unit, error; 994 995 unit = dkunit(dev); 996 periph = cam_extend_get(cdperiphs, unit); 997 if (periph == NULL) 998 return (ENXIO); 999 1000 softc = (struct cd_softc *)periph->softc; 1001 1002 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 1003 return (error); 1004 1005 dsclose(dev, fmt, softc->cd_slices); 1006 if (dsisopen(softc->cd_slices)) { 1007 cam_periph_unlock(periph); 1008 return (0); 1009 } 1010 1011 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1012 cdprevent(periph, PR_ALLOW); 1013 1014 /* 1015 * Since we're closing this CD, mark the blocksize as unavailable. 1016 * It will be marked as available whence the CD is opened again. 1017 */ 1018 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 1019 1020 softc->flags &= ~CD_FLAG_OPEN; 1021 cam_periph_unlock(periph); 1022 cam_periph_release(periph); 1023 1024 return (0); 1025 } 1026 1027 static void 1028 cdshorttimeout(void *arg) 1029 { 1030 struct cdchanger *changer; 1031 int s; 1032 1033 s = splsoftcam(); 1034 1035 changer = (struct cdchanger *)arg; 1036 1037 /* Always clear the short timeout flag, since that's what we're in */ 1038 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1039 1040 /* 1041 * Check to see if there is any more pending or outstanding I/O for 1042 * this device. If not, move it out of the active slot. 1043 */ 1044 if ((bufq_first(&changer->cur_device->buf_queue) == NULL) 1045 && (changer->cur_device->device_stats.busy_count == 0)) { 1046 changer->flags |= CHANGER_MANUAL_CALL; 1047 cdrunchangerqueue(changer); 1048 } 1049 1050 splx(s); 1051 } 1052 1053 /* 1054 * This is a wrapper for xpt_schedule. It only applies to changers. 1055 */ 1056 static void 1057 cdschedule(struct cam_periph *periph, int priority) 1058 { 1059 struct cd_softc *softc; 1060 int s; 1061 1062 s = splsoftcam(); 1063 1064 softc = (struct cd_softc *)periph->softc; 1065 1066 /* 1067 * If this device isn't currently queued, and if it isn't 1068 * the active device, then we queue this device and run the 1069 * changer queue if there is no timeout scheduled to do it. 1070 * If this device is the active device, just schedule it 1071 * to run again. If this device is queued, there should be 1072 * a timeout in place already that will make sure it runs. 1073 */ 1074 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1075 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1076 /* 1077 * We don't do anything with the priority here. 1078 * This is strictly a fifo queue. 1079 */ 1080 softc->pinfo.priority = 1; 1081 softc->pinfo.generation = ++softc->changer->devq.generation; 1082 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1083 1084 /* 1085 * Since we just put a device in the changer queue, 1086 * check and see if there is a timeout scheduled for 1087 * this changer. If so, let the timeout handle 1088 * switching this device into the active slot. If 1089 * not, manually call the timeout routine to 1090 * bootstrap things. 1091 */ 1092 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1093 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1094 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1095 softc->changer->flags |= CHANGER_MANUAL_CALL; 1096 cdrunchangerqueue(softc->changer); 1097 } 1098 } else if ((softc->flags & CD_FLAG_ACTIVE) 1099 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1100 xpt_schedule(periph, priority); 1101 1102 splx(s); 1103 1104 } 1105 1106 static void 1107 cdrunchangerqueue(void *arg) 1108 { 1109 struct cd_softc *softc; 1110 struct cdchanger *changer; 1111 int called_from_timeout; 1112 int s; 1113 1114 s = splsoftcam(); 1115 1116 changer = (struct cdchanger *)arg; 1117 1118 /* 1119 * If we have NOT been called from cdstrategy() or cddone(), and 1120 * instead from a timeout routine, go ahead and clear the 1121 * timeout flag. 1122 */ 1123 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1124 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1125 called_from_timeout = 1; 1126 } else 1127 called_from_timeout = 0; 1128 1129 /* Always clear the manual call flag */ 1130 changer->flags &= ~CHANGER_MANUAL_CALL; 1131 1132 /* nothing to do if the queue is empty */ 1133 if (changer->devq.entries <= 0) { 1134 splx(s); 1135 return; 1136 } 1137 1138 /* 1139 * If the changer queue is frozen, that means we have an active 1140 * device. 1141 */ 1142 if (changer->devq.qfrozen_cnt > 0) { 1143 1144 if (changer->cur_device->device_stats.busy_count > 0) { 1145 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1146 changer->cur_device->bufs_left = 1147 changer->cur_device->device_stats.busy_count; 1148 if (called_from_timeout) { 1149 changer->long_handle = 1150 timeout(cdrunchangerqueue, changer, 1151 changer_max_busy_seconds * hz); 1152 changer->flags |= CHANGER_TIMEOUT_SCHED; 1153 } 1154 splx(s); 1155 return; 1156 } 1157 1158 /* 1159 * We always need to reset the frozen count and clear the 1160 * active flag. 1161 */ 1162 changer->devq.qfrozen_cnt--; 1163 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1164 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1165 1166 /* 1167 * Check to see whether the current device has any I/O left 1168 * to do. If so, requeue it at the end of the queue. If 1169 * not, there is no need to requeue it. 1170 */ 1171 if (bufq_first(&changer->cur_device->buf_queue) != NULL) { 1172 1173 changer->cur_device->pinfo.generation = 1174 ++changer->devq.generation; 1175 camq_insert(&changer->devq, 1176 (cam_pinfo *)changer->cur_device); 1177 } 1178 } 1179 1180 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1181 1182 changer->cur_device = softc; 1183 1184 changer->devq.qfrozen_cnt++; 1185 softc->flags |= CD_FLAG_ACTIVE; 1186 1187 /* Just in case this device is waiting */ 1188 wakeup(&softc->changer); 1189 xpt_schedule(softc->periph, /*priority*/ 1); 1190 1191 /* 1192 * Get rid of any pending timeouts, and set a flag to schedule new 1193 * ones so this device gets its full time quantum. 1194 */ 1195 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1196 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1197 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1198 } 1199 1200 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1201 untimeout(cdshorttimeout, changer, changer->short_handle); 1202 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1203 } 1204 1205 /* 1206 * We need to schedule timeouts, but we only do this after the 1207 * first transaction has completed. This eliminates the changer 1208 * switch time. 1209 */ 1210 changer->flags |= CHANGER_NEED_TIMEOUT; 1211 1212 splx(s); 1213 } 1214 1215 static void 1216 cdchangerschedule(struct cd_softc *softc) 1217 { 1218 struct cdchanger *changer; 1219 int s; 1220 1221 s = splsoftcam(); 1222 1223 changer = softc->changer; 1224 1225 /* 1226 * If this is a changer, and this is the current device, 1227 * and this device has at least the minimum time quantum to 1228 * run, see if we can switch it out. 1229 */ 1230 if ((softc->flags & CD_FLAG_ACTIVE) 1231 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1232 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1233 /* 1234 * We try three things here. The first is that we 1235 * check to see whether the schedule on completion 1236 * flag is set. If it is, we decrement the number 1237 * of buffers left, and if it's zero, we reschedule. 1238 * Next, we check to see whether the pending buffer 1239 * queue is empty and whether there are no 1240 * outstanding transactions. If so, we reschedule. 1241 * Next, we see if the pending buffer queue is empty. 1242 * If it is, we set the number of buffers left to 1243 * the current active buffer count and set the 1244 * schedule on complete flag. 1245 */ 1246 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1247 if (--softc->bufs_left == 0) { 1248 softc->changer->flags |= 1249 CHANGER_MANUAL_CALL; 1250 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1251 cdrunchangerqueue(softc->changer); 1252 } 1253 } else if ((bufq_first(&softc->buf_queue) == NULL) 1254 && (softc->device_stats.busy_count == 0)) { 1255 softc->changer->flags |= CHANGER_MANUAL_CALL; 1256 cdrunchangerqueue(softc->changer); 1257 } 1258 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1259 && (softc->flags & CD_FLAG_ACTIVE)) { 1260 1261 /* 1262 * Now that the first transaction to this 1263 * particular device has completed, we can go ahead 1264 * and schedule our timeouts. 1265 */ 1266 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1267 changer->long_handle = 1268 timeout(cdrunchangerqueue, changer, 1269 changer_max_busy_seconds * hz); 1270 changer->flags |= CHANGER_TIMEOUT_SCHED; 1271 } else 1272 printf("cdchangerschedule: already have a long" 1273 " timeout!\n"); 1274 1275 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1276 changer->short_handle = 1277 timeout(cdshorttimeout, changer, 1278 changer_min_busy_seconds * hz); 1279 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1280 } else 1281 printf("cdchangerschedule: already have a short " 1282 "timeout!\n"); 1283 1284 /* 1285 * We just scheduled timeouts, no need to schedule 1286 * more. 1287 */ 1288 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1289 1290 } 1291 splx(s); 1292 } 1293 1294 static int 1295 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1296 u_int32_t cam_flags, 1297 u_int32_t sense_flags), 1298 u_int32_t cam_flags, u_int32_t sense_flags) 1299 { 1300 struct cd_softc *softc; 1301 struct cam_periph *periph; 1302 int error; 1303 1304 periph = xpt_path_periph(ccb->ccb_h.path); 1305 softc = (struct cd_softc *)periph->softc; 1306 1307 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1308 &softc->device_stats); 1309 1310 if (softc->flags & CD_FLAG_CHANGER) 1311 cdchangerschedule(softc); 1312 1313 return(error); 1314 } 1315 1316 static union ccb * 1317 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1318 { 1319 struct cd_softc *softc; 1320 int s; 1321 1322 softc = (struct cd_softc *)periph->softc; 1323 1324 if (softc->flags & CD_FLAG_CHANGER) { 1325 1326 s = splsoftcam(); 1327 1328 /* 1329 * This should work the first time this device is woken up, 1330 * but just in case it doesn't, we use a while loop. 1331 */ 1332 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1333 /* 1334 * If this changer isn't already queued, queue it up. 1335 */ 1336 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1337 softc->pinfo.priority = 1; 1338 softc->pinfo.generation = 1339 ++softc->changer->devq.generation; 1340 camq_insert(&softc->changer->devq, 1341 (cam_pinfo *)softc); 1342 } 1343 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1344 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1345 && ((softc->changer->flags 1346 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1347 softc->changer->flags |= CHANGER_MANUAL_CALL; 1348 cdrunchangerqueue(softc->changer); 1349 } else 1350 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1351 } 1352 splx(s); 1353 } 1354 return(cam_periph_getccb(periph, priority)); 1355 } 1356 1357 1358 /* 1359 * Actually translate the requested transfer into one the physical driver 1360 * can understand. The transfer is described by a buf and will include 1361 * only one physical transfer. 1362 */ 1363 static void 1364 cdstrategy(struct buf *bp) 1365 { 1366 struct cam_periph *periph; 1367 struct cd_softc *softc; 1368 u_int unit, part; 1369 int s; 1370 1371 unit = dkunit(bp->b_dev); 1372 part = dkpart(bp->b_dev); 1373 periph = cam_extend_get(cdperiphs, unit); 1374 if (periph == NULL) { 1375 bp->b_error = ENXIO; 1376 goto bad; 1377 } 1378 1379 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1380 1381 softc = (struct cd_softc *)periph->softc; 1382 1383 /* 1384 * Do bounds checking, adjust transfer, and set b_pbklno. 1385 */ 1386 if (dscheck(bp, softc->cd_slices) <= 0) 1387 goto done; 1388 1389 /* 1390 * Mask interrupts so that the pack cannot be invalidated until 1391 * after we are in the queue. Otherwise, we might not properly 1392 * clean up one of the buffers. 1393 */ 1394 s = splbio(); 1395 1396 /* 1397 * If the device has been made invalid, error out 1398 */ 1399 if ((softc->flags & CD_FLAG_INVALID)) { 1400 splx(s); 1401 bp->b_error = ENXIO; 1402 goto bad; 1403 } 1404 1405 /* 1406 * Place it in the queue of disk activities for this disk 1407 */ 1408 bufqdisksort(&softc->buf_queue, bp); 1409 1410 splx(s); 1411 1412 /* 1413 * Schedule ourselves for performing the work. We do things 1414 * differently for changers. 1415 */ 1416 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1417 xpt_schedule(periph, /* XXX priority */1); 1418 else 1419 cdschedule(periph, /* priority */ 1); 1420 1421 return; 1422 bad: 1423 bp->b_flags |= B_ERROR; 1424 done: 1425 /* 1426 * Correctly set the buf to indicate a completed xfer 1427 */ 1428 bp->b_resid = bp->b_bcount; 1429 biodone(bp); 1430 return; 1431 } 1432 1433 static void 1434 cdstrategy1(struct buf *bp) 1435 { 1436 /* 1437 * XXX - do something to make cdstrategy() but not this block while 1438 * we're doing dsopen() and dsioctl(). 1439 */ 1440 cdstrategy(bp); 1441 } 1442 1443 static void 1444 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1445 { 1446 struct cd_softc *softc; 1447 struct buf *bp; 1448 struct ccb_scsiio *csio; 1449 struct scsi_read_capacity_data *rcap; 1450 int s; 1451 1452 softc = (struct cd_softc *)periph->softc; 1453 1454 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1455 1456 switch (softc->state) { 1457 case CD_STATE_NORMAL: 1458 { 1459 int oldspl; 1460 1461 s = splbio(); 1462 bp = bufq_first(&softc->buf_queue); 1463 if (periph->immediate_priority <= periph->pinfo.priority) { 1464 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1465 1466 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1467 periph_links.sle); 1468 periph->immediate_priority = CAM_PRIORITY_NONE; 1469 splx(s); 1470 wakeup(&periph->ccb_list); 1471 } else if (bp == NULL) { 1472 splx(s); 1473 xpt_release_ccb(start_ccb); 1474 } else { 1475 bufq_remove(&softc->buf_queue, bp); 1476 1477 devstat_start_transaction(&softc->device_stats); 1478 1479 scsi_read_write(&start_ccb->csio, 1480 /*retries*/4, 1481 /* cbfcnp */ cddone, 1482 (bp->b_flags & B_ORDERED) != 0 ? 1483 MSG_ORDERED_Q_TAG : 1484 MSG_SIMPLE_Q_TAG, 1485 /* read */bp->b_flags & B_READ, 1486 /* byte2 */ 0, 1487 /* minimum_cmd_size */ 10, 1488 /* lba */ bp->b_pblkno, 1489 bp->b_bcount / softc->params.blksize, 1490 /* data_ptr */ bp->b_data, 1491 /* dxfer_len */ bp->b_bcount, 1492 /* sense_len */ SSD_FULL_SIZE, 1493 /* timeout */ 30000); 1494 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1495 1496 1497 /* 1498 * Block out any asyncronous callbacks 1499 * while we touch the pending ccb list. 1500 */ 1501 oldspl = splcam(); 1502 LIST_INSERT_HEAD(&softc->pending_ccbs, 1503 &start_ccb->ccb_h, periph_links.le); 1504 splx(oldspl); 1505 1506 /* We expect a unit attention from this device */ 1507 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1508 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1509 softc->flags &= ~CD_FLAG_RETRY_UA; 1510 } 1511 1512 start_ccb->ccb_h.ccb_bp = bp; 1513 bp = bufq_first(&softc->buf_queue); 1514 splx(s); 1515 1516 xpt_action(start_ccb); 1517 } 1518 if (bp != NULL) { 1519 /* Have more work to do, so ensure we stay scheduled */ 1520 xpt_schedule(periph, /* XXX priority */1); 1521 } 1522 break; 1523 } 1524 case CD_STATE_PROBE: 1525 { 1526 1527 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1528 M_TEMP, 1529 M_NOWAIT); 1530 if (rcap == NULL) { 1531 xpt_print_path(periph->path); 1532 printf("cdstart: Couldn't malloc read_capacity data\n"); 1533 /* cd_free_periph??? */ 1534 break; 1535 } 1536 csio = &start_ccb->csio; 1537 scsi_read_capacity(csio, 1538 /*retries*/1, 1539 cddone, 1540 MSG_SIMPLE_Q_TAG, 1541 rcap, 1542 SSD_FULL_SIZE, 1543 /*timeout*/20000); 1544 start_ccb->ccb_h.ccb_bp = NULL; 1545 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1546 xpt_action(start_ccb); 1547 break; 1548 } 1549 } 1550 } 1551 1552 static void 1553 cddone(struct cam_periph *periph, union ccb *done_ccb) 1554 { 1555 struct cd_softc *softc; 1556 struct ccb_scsiio *csio; 1557 1558 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1559 1560 softc = (struct cd_softc *)periph->softc; 1561 csio = &done_ccb->csio; 1562 1563 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1564 case CD_CCB_BUFFER_IO: 1565 { 1566 struct buf *bp; 1567 int error; 1568 int oldspl; 1569 1570 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1571 error = 0; 1572 1573 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1574 int sf; 1575 1576 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1577 sf = SF_RETRY_UA; 1578 else 1579 sf = 0; 1580 1581 /* Retry selection timeouts */ 1582 sf |= SF_RETRY_SELTO; 1583 1584 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) { 1585 /* 1586 * A retry was scheuled, so 1587 * just return. 1588 */ 1589 return; 1590 } 1591 } 1592 1593 if (error != 0) { 1594 int s; 1595 struct buf *q_bp; 1596 1597 xpt_print_path(periph->path); 1598 printf("cddone: got error %#x back\n", error); 1599 s = splbio(); 1600 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { 1601 bufq_remove(&softc->buf_queue, q_bp); 1602 q_bp->b_resid = q_bp->b_bcount; 1603 q_bp->b_error = EIO; 1604 q_bp->b_flags |= B_ERROR; 1605 biodone(q_bp); 1606 } 1607 splx(s); 1608 bp->b_resid = bp->b_bcount; 1609 bp->b_error = error; 1610 bp->b_flags |= B_ERROR; 1611 cam_release_devq(done_ccb->ccb_h.path, 1612 /*relsim_flags*/0, 1613 /*reduction*/0, 1614 /*timeout*/0, 1615 /*getcount_only*/0); 1616 1617 } else { 1618 bp->b_resid = csio->resid; 1619 bp->b_error = 0; 1620 if (bp->b_resid != 0) { 1621 /* Short transfer ??? */ 1622 bp->b_flags |= B_ERROR; 1623 } 1624 } 1625 1626 /* 1627 * Block out any asyncronous callbacks 1628 * while we touch the pending ccb list. 1629 */ 1630 oldspl = splcam(); 1631 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1632 splx(oldspl); 1633 1634 devstat_end_transaction(&softc->device_stats, 1635 bp->b_bcount - bp->b_resid, 1636 done_ccb->csio.tag_action & 0xf, 1637 (bp->b_flags & B_READ) ? DEVSTAT_READ 1638 : DEVSTAT_WRITE); 1639 1640 if (softc->flags & CD_FLAG_CHANGER) 1641 cdchangerschedule(softc); 1642 1643 biodone(bp); 1644 break; 1645 } 1646 case CD_CCB_PROBE: 1647 { 1648 struct scsi_read_capacity_data *rdcap; 1649 char announce_buf[120]; /* 1650 * Currently (9/30/97) the 1651 * longest possible announce 1652 * buffer is 108 bytes, for the 1653 * first error case below. 1654 * That is 39 bytes for the 1655 * basic string, 16 bytes for the 1656 * biggest sense key (hardware 1657 * error), 52 bytes for the 1658 * text of the largest sense 1659 * qualifier valid for a CDROM, 1660 * (0x72, 0x03 or 0x04, 1661 * 0x03), and one byte for the 1662 * null terminating character. 1663 * To allow for longer strings, 1664 * the announce buffer is 120 1665 * bytes. 1666 */ 1667 struct cd_params *cdp; 1668 1669 cdp = &softc->params; 1670 1671 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1672 1673 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1674 cdp->blksize = scsi_4btoul (rdcap->length); 1675 1676 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1677 1678 snprintf(announce_buf, sizeof(announce_buf), 1679 "cd present [%lu x %lu byte records]", 1680 cdp->disksize, (u_long)cdp->blksize); 1681 1682 } else { 1683 int error; 1684 /* 1685 * Retry any UNIT ATTENTION type errors. They 1686 * are expected at boot. 1687 */ 1688 error = cderror(done_ccb, 0, SF_RETRY_UA | 1689 SF_NO_PRINT | SF_RETRY_SELTO); 1690 if (error == ERESTART) { 1691 /* 1692 * A retry was scheuled, so 1693 * just return. 1694 */ 1695 return; 1696 } else if (error != 0) { 1697 1698 struct scsi_sense_data *sense; 1699 int asc, ascq; 1700 int sense_key, error_code; 1701 int have_sense; 1702 cam_status status; 1703 struct ccb_getdev cgd; 1704 1705 /* Don't wedge this device's queue */ 1706 cam_release_devq(done_ccb->ccb_h.path, 1707 /*relsim_flags*/0, 1708 /*reduction*/0, 1709 /*timeout*/0, 1710 /*getcount_only*/0); 1711 1712 status = done_ccb->ccb_h.status; 1713 1714 xpt_setup_ccb(&cgd.ccb_h, 1715 done_ccb->ccb_h.path, 1716 /* priority */ 1); 1717 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1718 xpt_action((union ccb *)&cgd); 1719 1720 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1721 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1722 || ((status & CAM_AUTOSNS_VALID) == 0)) 1723 have_sense = FALSE; 1724 else 1725 have_sense = TRUE; 1726 1727 if (have_sense) { 1728 sense = &csio->sense_data; 1729 scsi_extract_sense(sense, &error_code, 1730 &sense_key, 1731 &asc, &ascq); 1732 } 1733 /* 1734 * Attach to anything that claims to be a 1735 * CDROM or WORM device, as long as it 1736 * doesn't return a "Logical unit not 1737 * supported" (0x25) error. 1738 */ 1739 if ((have_sense) && (asc != 0x25) 1740 && (error_code == SSD_CURRENT_ERROR)) 1741 snprintf(announce_buf, 1742 sizeof(announce_buf), 1743 "Attempt to query device " 1744 "size failed: %s, %s", 1745 scsi_sense_key_text[sense_key], 1746 scsi_sense_desc(asc,ascq, 1747 &cgd.inq_data)); 1748 else if (cgd.pd_type == T_CDROM) { 1749 /* 1750 * We only print out an error for 1751 * CDROM type devices. For WORM 1752 * devices, we don't print out an 1753 * error since a few WORM devices 1754 * don't support CDROM commands. 1755 * If we have sense information, go 1756 * ahead and print it out. 1757 * Otherwise, just say that we 1758 * couldn't attach. 1759 */ 1760 1761 /* 1762 * Just print out the error, not 1763 * the full probe message, when we 1764 * don't attach. 1765 */ 1766 if (have_sense) 1767 scsi_sense_print( 1768 &done_ccb->csio); 1769 else { 1770 xpt_print_path(periph->path); 1771 printf("got CAM status %#x\n", 1772 done_ccb->ccb_h.status); 1773 } 1774 xpt_print_path(periph->path); 1775 printf("fatal error, failed" 1776 " to attach to device\n"); 1777 1778 /* 1779 * Invalidate this peripheral. 1780 */ 1781 cam_periph_invalidate(periph); 1782 1783 announce_buf[0] = '\0'; 1784 } else { 1785 1786 /* 1787 * Invalidate this peripheral. 1788 */ 1789 cam_periph_invalidate(periph); 1790 announce_buf[0] = '\0'; 1791 } 1792 } 1793 } 1794 free(rdcap, M_TEMP); 1795 if (announce_buf[0] != '\0') { 1796 xpt_announce_periph(periph, announce_buf); 1797 if (softc->flags & CD_FLAG_CHANGER) 1798 cdchangerschedule(softc); 1799 } 1800 softc->state = CD_STATE_NORMAL; 1801 /* 1802 * Since our peripheral may be invalidated by an error 1803 * above or an external event, we must release our CCB 1804 * before releasing the probe lock on the peripheral. 1805 * The peripheral will only go away once the last lock 1806 * is removed, and we need it around for the CCB release 1807 * operation. 1808 */ 1809 xpt_release_ccb(done_ccb); 1810 cam_periph_unlock(periph); 1811 return; 1812 } 1813 case CD_CCB_WAITING: 1814 { 1815 /* Caller will release the CCB */ 1816 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1817 ("trying to wakeup ccbwait\n")); 1818 1819 wakeup(&done_ccb->ccb_h.cbfcnp); 1820 return; 1821 } 1822 default: 1823 break; 1824 } 1825 xpt_release_ccb(done_ccb); 1826 } 1827 1828 static int 1829 cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1830 { 1831 1832 struct cam_periph *periph; 1833 struct cd_softc *softc; 1834 int error, unit; 1835 1836 unit = dkunit(dev); 1837 1838 periph = cam_extend_get(cdperiphs, unit); 1839 if (periph == NULL) 1840 return(ENXIO); 1841 1842 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1843 1844 softc = (struct cd_softc *)periph->softc; 1845 1846 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1847 ("trying to do ioctl %#lx\n", cmd)); 1848 1849 error = cam_periph_lock(periph, PRIBIO | PCATCH); 1850 1851 if (error != 0) 1852 return(error); 1853 1854 switch (cmd) { 1855 1856 case CDIOCPLAYTRACKS: 1857 { 1858 struct ioc_play_track *args 1859 = (struct ioc_play_track *) addr; 1860 struct cd_mode_data *data; 1861 1862 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1863 M_WAITOK); 1864 1865 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1866 ("trying to do CDIOCPLAYTRACKS\n")); 1867 1868 error = cdgetmode(periph, data, AUDIO_PAGE); 1869 if (error) { 1870 free(data, M_TEMP); 1871 break; 1872 } 1873 data->page.audio.flags &= ~CD_PA_SOTC; 1874 data->page.audio.flags |= CD_PA_IMMED; 1875 error = cdsetmode(periph, data); 1876 free(data, M_TEMP); 1877 if (error) 1878 break; 1879 if (softc->quirks & CD_Q_BCD_TRACKS) { 1880 args->start_track = bin2bcd(args->start_track); 1881 args->end_track = bin2bcd(args->end_track); 1882 } 1883 error = cdplaytracks(periph, 1884 args->start_track, 1885 args->start_index, 1886 args->end_track, 1887 args->end_index); 1888 } 1889 break; 1890 case CDIOCPLAYMSF: 1891 { 1892 struct ioc_play_msf *args 1893 = (struct ioc_play_msf *) addr; 1894 struct cd_mode_data *data; 1895 1896 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1897 M_WAITOK); 1898 1899 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1900 ("trying to do CDIOCPLAYMSF\n")); 1901 1902 error = cdgetmode(periph, data, AUDIO_PAGE); 1903 if (error) { 1904 free(data, M_TEMP); 1905 break; 1906 } 1907 data->page.audio.flags &= ~CD_PA_SOTC; 1908 data->page.audio.flags |= CD_PA_IMMED; 1909 error = cdsetmode(periph, data); 1910 free(data, M_TEMP); 1911 if (error) 1912 break; 1913 error = cdplaymsf(periph, 1914 args->start_m, 1915 args->start_s, 1916 args->start_f, 1917 args->end_m, 1918 args->end_s, 1919 args->end_f); 1920 } 1921 break; 1922 case CDIOCPLAYBLOCKS: 1923 { 1924 struct ioc_play_blocks *args 1925 = (struct ioc_play_blocks *) addr; 1926 struct cd_mode_data *data; 1927 1928 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1929 ("trying to do CDIOCPLAYBLOCKS\n")); 1930 1931 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1932 M_WAITOK); 1933 1934 error = cdgetmode(periph, data, AUDIO_PAGE); 1935 if (error) { 1936 free(data, M_TEMP); 1937 break; 1938 } 1939 data->page.audio.flags &= ~CD_PA_SOTC; 1940 data->page.audio.flags |= CD_PA_IMMED; 1941 error = cdsetmode(periph, data); 1942 free(data, M_TEMP); 1943 if (error) 1944 break; 1945 error = cdplay(periph, args->blk, args->len); 1946 } 1947 break; 1948 case CDIOCREADSUBCHANNEL: 1949 { 1950 struct ioc_read_subchannel *args 1951 = (struct ioc_read_subchannel *) addr; 1952 struct cd_sub_channel_info *data; 1953 u_int32_t len = args->data_len; 1954 1955 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1956 ("trying to do CDIOCREADSUBCHANNEL\n")); 1957 1958 data = malloc(sizeof(struct cd_sub_channel_info), 1959 M_TEMP, M_WAITOK); 1960 1961 if ((len > sizeof(struct cd_sub_channel_info)) || 1962 (len < sizeof(struct cd_sub_channel_header))) { 1963 printf( 1964 "scsi_cd: cdioctl: " 1965 "cdioreadsubchannel: error, len=%d\n", 1966 len); 1967 error = EINVAL; 1968 free(data, M_TEMP); 1969 break; 1970 } 1971 1972 if (softc->quirks & CD_Q_BCD_TRACKS) 1973 args->track = bin2bcd(args->track); 1974 1975 error = cdreadsubchannel(periph, args->address_format, 1976 args->data_format, args->track, data, len); 1977 1978 if (error) { 1979 free(data, M_TEMP); 1980 break; 1981 } 1982 if (softc->quirks & CD_Q_BCD_TRACKS) 1983 data->what.track_info.track_number = 1984 bcd2bin(data->what.track_info.track_number); 1985 len = min(len, ((data->header.data_len[0] << 8) + 1986 data->header.data_len[1] + 1987 sizeof(struct cd_sub_channel_header))); 1988 if (copyout(data, args->data, len) != 0) { 1989 error = EFAULT; 1990 } 1991 free(data, M_TEMP); 1992 } 1993 break; 1994 1995 case CDIOREADTOCHEADER: 1996 { 1997 struct ioc_toc_header *th; 1998 1999 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2000 ("trying to do CDIOREADTOCHEADER\n")); 2001 2002 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 2003 M_WAITOK); 2004 error = cdreadtoc(periph, 0, 0, 2005 (struct cd_toc_entry *)th, 2006 sizeof (*th)); 2007 if (error) { 2008 free(th, M_TEMP); 2009 break; 2010 } 2011 if (softc->quirks & CD_Q_BCD_TRACKS) { 2012 /* we are going to have to convert the BCD 2013 * encoding on the cd to what is expected 2014 */ 2015 th->starting_track = 2016 bcd2bin(th->starting_track); 2017 th->ending_track = bcd2bin(th->ending_track); 2018 } 2019 NTOHS(th->len); 2020 bcopy(th, addr, sizeof(*th)); 2021 free(th, M_TEMP); 2022 } 2023 break; 2024 case CDIOREADTOCENTRYS: 2025 { 2026 typedef struct { 2027 struct ioc_toc_header header; 2028 struct cd_toc_entry entries[100]; 2029 } data_t; 2030 typedef struct { 2031 struct ioc_toc_header header; 2032 struct cd_toc_entry entry; 2033 } lead_t; 2034 2035 data_t *data; 2036 lead_t *lead; 2037 struct ioc_read_toc_entry *te = 2038 (struct ioc_read_toc_entry *) addr; 2039 struct ioc_toc_header *th; 2040 u_int32_t len, readlen, idx, num; 2041 u_int32_t starting_track = te->starting_track; 2042 2043 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2044 ("trying to do CDIOREADTOCENTRYS\n")); 2045 2046 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2047 lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK); 2048 2049 if (te->data_len < sizeof(struct cd_toc_entry) 2050 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2051 || (te->address_format != CD_MSF_FORMAT 2052 && te->address_format != CD_LBA_FORMAT)) { 2053 error = EINVAL; 2054 printf("scsi_cd: error in readtocentries, " 2055 "returning EINVAL\n"); 2056 free(data, M_TEMP); 2057 free(lead, M_TEMP); 2058 break; 2059 } 2060 2061 th = &data->header; 2062 error = cdreadtoc(periph, 0, 0, 2063 (struct cd_toc_entry *)th, 2064 sizeof (*th)); 2065 if (error) { 2066 free(data, M_TEMP); 2067 free(lead, M_TEMP); 2068 break; 2069 } 2070 2071 if (softc->quirks & CD_Q_BCD_TRACKS) { 2072 /* we are going to have to convert the BCD 2073 * encoding on the cd to what is expected 2074 */ 2075 th->starting_track = 2076 bcd2bin(th->starting_track); 2077 th->ending_track = bcd2bin(th->ending_track); 2078 } 2079 2080 if (starting_track == 0) 2081 starting_track = th->starting_track; 2082 else if (starting_track == LEADOUT) 2083 starting_track = th->ending_track + 1; 2084 else if (starting_track < th->starting_track || 2085 starting_track > th->ending_track + 1) { 2086 printf("scsi_cd: error in readtocentries, " 2087 "returning EINVAL\n"); 2088 free(data, M_TEMP); 2089 free(lead, M_TEMP); 2090 error = EINVAL; 2091 break; 2092 } 2093 2094 /* calculate reading length without leadout entry */ 2095 readlen = (th->ending_track - starting_track + 1) * 2096 sizeof(struct cd_toc_entry); 2097 2098 /* and with leadout entry */ 2099 len = readlen + sizeof(struct cd_toc_entry); 2100 if (te->data_len < len) { 2101 len = te->data_len; 2102 if (readlen > len) 2103 readlen = len; 2104 } 2105 if (len > sizeof(data->entries)) { 2106 printf("scsi_cd: error in readtocentries, " 2107 "returning EINVAL\n"); 2108 error = EINVAL; 2109 free(data, M_TEMP); 2110 free(lead, M_TEMP); 2111 break; 2112 } 2113 num = len / sizeof(struct cd_toc_entry); 2114 2115 if (readlen > 0) { 2116 error = cdreadtoc(periph, te->address_format, 2117 starting_track, 2118 (struct cd_toc_entry *)data, 2119 readlen + sizeof (*th)); 2120 if (error) { 2121 free(data, M_TEMP); 2122 free(lead, M_TEMP); 2123 break; 2124 } 2125 } 2126 2127 /* make leadout entry if needed */ 2128 idx = starting_track + num - 1; 2129 if (softc->quirks & CD_Q_BCD_TRACKS) 2130 th->ending_track = bcd2bin(th->ending_track); 2131 if (idx == th->ending_track + 1) { 2132 error = cdreadtoc(periph, te->address_format, 2133 LEADOUT, 2134 (struct cd_toc_entry *)lead, 2135 sizeof(*lead)); 2136 if (error) { 2137 free(data, M_TEMP); 2138 free(lead, M_TEMP); 2139 break; 2140 } 2141 data->entries[idx - starting_track] = 2142 lead->entry; 2143 } 2144 if (softc->quirks & CD_Q_BCD_TRACKS) { 2145 for (idx = 0; idx < num - 1; idx++) { 2146 data->entries[idx].track = 2147 bcd2bin(data->entries[idx].track); 2148 } 2149 } 2150 2151 error = copyout(data->entries, te->data, len); 2152 free(data, M_TEMP); 2153 free(lead, M_TEMP); 2154 } 2155 break; 2156 case CDIOREADTOCENTRY: 2157 { 2158 /* yeah yeah, this is ugly */ 2159 typedef struct { 2160 struct ioc_toc_header header; 2161 struct cd_toc_entry entry; 2162 } data_t; 2163 2164 data_t *data; 2165 struct ioc_read_toc_single_entry *te = 2166 (struct ioc_read_toc_single_entry *) addr; 2167 struct ioc_toc_header *th; 2168 u_int32_t track; 2169 2170 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2171 ("trying to do CDIOREADTOCENTRY\n")); 2172 2173 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2174 2175 if (te->address_format != CD_MSF_FORMAT 2176 && te->address_format != CD_LBA_FORMAT) { 2177 printf("error in readtocentry, " 2178 " returning EINVAL\n"); 2179 free(data, M_TEMP); 2180 error = EINVAL; 2181 break; 2182 } 2183 2184 th = &data->header; 2185 error = cdreadtoc(periph, 0, 0, 2186 (struct cd_toc_entry *)th, 2187 sizeof (*th)); 2188 if (error) { 2189 free(data, M_TEMP); 2190 break; 2191 } 2192 2193 if (softc->quirks & CD_Q_BCD_TRACKS) { 2194 /* we are going to have to convert the BCD 2195 * encoding on the cd to what is expected 2196 */ 2197 th->starting_track = 2198 bcd2bin(th->starting_track); 2199 th->ending_track = bcd2bin(th->ending_track); 2200 } 2201 track = te->track; 2202 if (track == 0) 2203 track = th->starting_track; 2204 else if (track == LEADOUT) 2205 /* OK */; 2206 else if (track < th->starting_track || 2207 track > th->ending_track + 1) { 2208 printf("error in readtocentry, " 2209 " returning EINVAL\n"); 2210 free(data, M_TEMP); 2211 error = EINVAL; 2212 break; 2213 } 2214 2215 error = cdreadtoc(periph, te->address_format, track, 2216 (struct cd_toc_entry *)data, 2217 sizeof(data_t)); 2218 if (error) { 2219 free(data, M_TEMP); 2220 break; 2221 } 2222 2223 if (softc->quirks & CD_Q_BCD_TRACKS) 2224 data->entry.track = bcd2bin(data->entry.track); 2225 bcopy(&data->entry, &te->entry, 2226 sizeof(struct cd_toc_entry)); 2227 free(data, M_TEMP); 2228 } 2229 break; 2230 case CDIOCSETPATCH: 2231 { 2232 struct ioc_patch *arg = (struct ioc_patch *) addr; 2233 struct cd_mode_data *data; 2234 2235 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2236 ("trying to do CDIOCSETPATCH\n")); 2237 2238 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2239 M_WAITOK); 2240 error = cdgetmode(periph, data, AUDIO_PAGE); 2241 if (error) { 2242 free(data, M_TEMP); 2243 break; 2244 } 2245 data->page.audio.port[LEFT_PORT].channels = 2246 arg->patch[0]; 2247 data->page.audio.port[RIGHT_PORT].channels = 2248 arg->patch[1]; 2249 data->page.audio.port[2].channels = arg->patch[2]; 2250 data->page.audio.port[3].channels = arg->patch[3]; 2251 error = cdsetmode(periph, data); 2252 free(data, M_TEMP); 2253 } 2254 break; 2255 case CDIOCGETVOL: 2256 { 2257 struct ioc_vol *arg = (struct ioc_vol *) addr; 2258 struct cd_mode_data *data; 2259 2260 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2261 ("trying to do CDIOCGETVOL\n")); 2262 2263 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2264 M_WAITOK); 2265 error = cdgetmode(periph, data, AUDIO_PAGE); 2266 if (error) { 2267 free(data, M_TEMP); 2268 break; 2269 } 2270 arg->vol[LEFT_PORT] = 2271 data->page.audio.port[LEFT_PORT].volume; 2272 arg->vol[RIGHT_PORT] = 2273 data->page.audio.port[RIGHT_PORT].volume; 2274 arg->vol[2] = data->page.audio.port[2].volume; 2275 arg->vol[3] = data->page.audio.port[3].volume; 2276 free(data, M_TEMP); 2277 } 2278 break; 2279 case CDIOCSETVOL: 2280 { 2281 struct ioc_vol *arg = (struct ioc_vol *) addr; 2282 struct cd_mode_data *data; 2283 2284 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2285 ("trying to do CDIOCSETVOL\n")); 2286 2287 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2288 M_WAITOK); 2289 error = cdgetmode(periph, data, AUDIO_PAGE); 2290 if (error) { 2291 free(data, M_TEMP); 2292 break; 2293 } 2294 data->page.audio.port[LEFT_PORT].channels = CHANNEL_0; 2295 data->page.audio.port[LEFT_PORT].volume = 2296 arg->vol[LEFT_PORT]; 2297 data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1; 2298 data->page.audio.port[RIGHT_PORT].volume = 2299 arg->vol[RIGHT_PORT]; 2300 data->page.audio.port[2].volume = arg->vol[2]; 2301 data->page.audio.port[3].volume = arg->vol[3]; 2302 error = cdsetmode(periph, data); 2303 free(data, M_TEMP); 2304 } 2305 break; 2306 case CDIOCSETMONO: 2307 { 2308 struct cd_mode_data *data; 2309 2310 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2311 ("trying to do CDIOCSETMONO\n")); 2312 2313 data = malloc(sizeof(struct cd_mode_data), 2314 M_TEMP, M_WAITOK); 2315 error = cdgetmode(periph, data, AUDIO_PAGE); 2316 if (error) { 2317 free(data, M_TEMP); 2318 break; 2319 } 2320 data->page.audio.port[LEFT_PORT].channels = 2321 LEFT_CHANNEL | RIGHT_CHANNEL; 2322 data->page.audio.port[RIGHT_PORT].channels = 2323 LEFT_CHANNEL | RIGHT_CHANNEL; 2324 data->page.audio.port[2].channels = 0; 2325 data->page.audio.port[3].channels = 0; 2326 error = cdsetmode(periph, data); 2327 free(data, M_TEMP); 2328 } 2329 break; 2330 case CDIOCSETSTEREO: 2331 { 2332 struct cd_mode_data *data; 2333 2334 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2335 ("trying to do CDIOCSETSTEREO\n")); 2336 2337 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2338 M_WAITOK); 2339 error = cdgetmode(periph, data, AUDIO_PAGE); 2340 if (error) { 2341 free(data, M_TEMP); 2342 break; 2343 } 2344 data->page.audio.port[LEFT_PORT].channels = 2345 LEFT_CHANNEL; 2346 data->page.audio.port[RIGHT_PORT].channels = 2347 RIGHT_CHANNEL; 2348 data->page.audio.port[2].channels = 0; 2349 data->page.audio.port[3].channels = 0; 2350 error = cdsetmode(periph, data); 2351 free(data, M_TEMP); 2352 } 2353 break; 2354 case CDIOCSETMUTE: 2355 { 2356 struct cd_mode_data *data; 2357 2358 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2359 ("trying to do CDIOCSETMUTE\n")); 2360 2361 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2362 M_WAITOK); 2363 error = cdgetmode(periph, data, AUDIO_PAGE); 2364 if (error) { 2365 free(data, M_TEMP); 2366 break; 2367 } 2368 data->page.audio.port[LEFT_PORT].channels = 0; 2369 data->page.audio.port[RIGHT_PORT].channels = 0; 2370 data->page.audio.port[2].channels = 0; 2371 data->page.audio.port[3].channels = 0; 2372 error = cdsetmode(periph, data); 2373 free(data, M_TEMP); 2374 } 2375 break; 2376 case CDIOCSETLEFT: 2377 { 2378 struct cd_mode_data *data; 2379 2380 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2381 ("trying to do CDIOCSETLEFT\n")); 2382 2383 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2384 M_WAITOK); 2385 error = cdgetmode(periph, data, AUDIO_PAGE); 2386 if (error) { 2387 free(data, M_TEMP); 2388 break; 2389 } 2390 data->page.audio.port[LEFT_PORT].channels = 2391 LEFT_CHANNEL; 2392 data->page.audio.port[RIGHT_PORT].channels = 2393 LEFT_CHANNEL; 2394 data->page.audio.port[2].channels = 0; 2395 data->page.audio.port[3].channels = 0; 2396 error = cdsetmode(periph, data); 2397 free(data, M_TEMP); 2398 } 2399 break; 2400 case CDIOCSETRIGHT: 2401 { 2402 struct cd_mode_data *data; 2403 2404 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2405 ("trying to do CDIOCSETRIGHT\n")); 2406 2407 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2408 M_WAITOK); 2409 error = cdgetmode(periph, data, AUDIO_PAGE); 2410 if (error) { 2411 free(data, M_TEMP); 2412 break; 2413 } 2414 data->page.audio.port[LEFT_PORT].channels = 2415 RIGHT_CHANNEL; 2416 data->page.audio.port[RIGHT_PORT].channels = 2417 RIGHT_CHANNEL; 2418 data->page.audio.port[2].channels = 0; 2419 data->page.audio.port[3].channels = 0; 2420 error = cdsetmode(periph, data); 2421 free(data, M_TEMP); 2422 } 2423 break; 2424 case CDIOCRESUME: 2425 error = cdpause(periph, 1); 2426 break; 2427 case CDIOCPAUSE: 2428 error = cdpause(periph, 0); 2429 break; 2430 case CDIOCSTART: 2431 error = cdstartunit(periph); 2432 break; 2433 case CDIOCSTOP: 2434 error = cdstopunit(periph, 0); 2435 break; 2436 case CDIOCEJECT: 2437 error = cdstopunit(periph, 1); 2438 break; 2439 case CDIOCALLOW: 2440 cdprevent(periph, PR_ALLOW); 2441 break; 2442 case CDIOCPREVENT: 2443 cdprevent(periph, PR_PREVENT); 2444 break; 2445 case CDIOCSETDEBUG: 2446 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2447 error = ENOTTY; 2448 break; 2449 case CDIOCCLRDEBUG: 2450 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2451 error = ENOTTY; 2452 break; 2453 case CDIOCRESET: 2454 /* return (cd_reset(periph)); */ 2455 error = ENOTTY; 2456 break; 2457 default: 2458 if (cmd == DIOCSBAD) { 2459 error = EINVAL; /* XXX */ 2460 break; 2461 } 2462 2463 /* 2464 * Check to see whether we've got a disk-type ioctl. If we 2465 * don't, dsioctl will pass back an error code of ENOIOCTL. 2466 */ 2467 error = dsioctl("cd", dev, cmd, addr, flag, &softc->cd_slices, 2468 cdstrategy1, (ds_setgeom_t *)NULL); 2469 2470 if (error != ENOIOCTL) 2471 break; 2472 2473 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2474 break; 2475 } 2476 2477 cam_periph_unlock(periph); 2478 2479 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2480 2481 return (error); 2482 } 2483 2484 static void 2485 cdprevent(struct cam_periph *periph, int action) 2486 { 2487 union ccb *ccb; 2488 struct cd_softc *softc; 2489 int error; 2490 2491 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2492 2493 softc = (struct cd_softc *)periph->softc; 2494 2495 if (((action == PR_ALLOW) 2496 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2497 || ((action == PR_PREVENT) 2498 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2499 return; 2500 } 2501 2502 ccb = cdgetccb(periph, /* priority */ 1); 2503 2504 scsi_prevent(&ccb->csio, 2505 /*retries*/ 1, 2506 cddone, 2507 MSG_SIMPLE_Q_TAG, 2508 action, 2509 SSD_FULL_SIZE, 2510 /* timeout */60000); 2511 2512 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2513 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO); 2514 2515 xpt_release_ccb(ccb); 2516 2517 if (error == 0) { 2518 if (action == PR_ALLOW) 2519 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2520 else 2521 softc->flags |= CD_FLAG_DISC_LOCKED; 2522 } 2523 } 2524 2525 static int 2526 cdsize(dev_t dev, u_int32_t *size) 2527 { 2528 struct cam_periph *periph; 2529 struct cd_softc *softc; 2530 union ccb *ccb; 2531 struct scsi_read_capacity_data *rcap_buf; 2532 int error; 2533 2534 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2535 2536 if (periph == NULL) 2537 return (ENXIO); 2538 2539 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2540 2541 softc = (struct cd_softc *)periph->softc; 2542 2543 ccb = cdgetccb(periph, /* priority */ 1); 2544 2545 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2546 M_TEMP, M_WAITOK); 2547 2548 scsi_read_capacity(&ccb->csio, 2549 /*retries*/ 1, 2550 cddone, 2551 MSG_SIMPLE_Q_TAG, 2552 rcap_buf, 2553 SSD_FULL_SIZE, 2554 /* timeout */20000); 2555 2556 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2557 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO); 2558 2559 xpt_release_ccb(ccb); 2560 2561 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2562 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2563 2564 free(rcap_buf, M_TEMP); 2565 *size = softc->params.disksize; 2566 2567 return (error); 2568 2569 } 2570 2571 static int 2572 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2573 { 2574 struct cd_softc *softc; 2575 struct cam_periph *periph; 2576 2577 periph = xpt_path_periph(ccb->ccb_h.path); 2578 softc = (struct cd_softc *)periph->softc; 2579 2580 /* 2581 * XXX 2582 * Until we have a better way of doing pack validation, 2583 * don't treat UAs as errors. 2584 */ 2585 sense_flags |= SF_RETRY_UA; 2586 return (cam_periph_error(ccb, cam_flags, sense_flags, 2587 &softc->saved_ccb)); 2588 } 2589 2590 /* 2591 * Read table of contents 2592 */ 2593 static int 2594 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 2595 struct cd_toc_entry *data, u_int32_t len) 2596 { 2597 struct scsi_read_toc *scsi_cmd; 2598 u_int32_t ntoc; 2599 struct ccb_scsiio *csio; 2600 union ccb *ccb; 2601 int error; 2602 2603 ntoc = len; 2604 error = 0; 2605 2606 ccb = cdgetccb(periph, /* priority */ 1); 2607 2608 csio = &ccb->csio; 2609 2610 cam_fill_csio(csio, 2611 /* retries */ 1, 2612 /* cbfcnp */ cddone, 2613 /* flags */ CAM_DIR_IN, 2614 /* tag_action */ MSG_SIMPLE_Q_TAG, 2615 /* data_ptr */ (u_int8_t *)data, 2616 /* dxfer_len */ len, 2617 /* sense_len */ SSD_FULL_SIZE, 2618 sizeof(struct scsi_read_toc), 2619 /* timeout */ 50000); 2620 2621 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 2622 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2623 2624 if (mode == CD_MSF_FORMAT) 2625 scsi_cmd->byte2 |= CD_MSF; 2626 scsi_cmd->from_track = start; 2627 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 2628 scsi_cmd->data_len[0] = (ntoc) >> 8; 2629 scsi_cmd->data_len[1] = (ntoc) & 0xff; 2630 2631 scsi_cmd->op_code = READ_TOC; 2632 2633 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2634 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2635 2636 xpt_release_ccb(ccb); 2637 2638 return(error); 2639 } 2640 2641 static int 2642 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 2643 u_int32_t format, int track, 2644 struct cd_sub_channel_info *data, u_int32_t len) 2645 { 2646 struct scsi_read_subchannel *scsi_cmd; 2647 struct ccb_scsiio *csio; 2648 union ccb *ccb; 2649 int error; 2650 2651 error = 0; 2652 2653 ccb = cdgetccb(periph, /* priority */ 1); 2654 2655 csio = &ccb->csio; 2656 2657 cam_fill_csio(csio, 2658 /* retries */ 1, 2659 /* cbfcnp */ cddone, 2660 /* flags */ CAM_DIR_IN, 2661 /* tag_action */ MSG_SIMPLE_Q_TAG, 2662 /* data_ptr */ (u_int8_t *)data, 2663 /* dxfer_len */ len, 2664 /* sense_len */ SSD_FULL_SIZE, 2665 sizeof(struct scsi_read_subchannel), 2666 /* timeout */ 50000); 2667 2668 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 2669 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2670 2671 scsi_cmd->op_code = READ_SUBCHANNEL; 2672 if (mode == CD_MSF_FORMAT) 2673 scsi_cmd->byte1 |= CD_MSF; 2674 scsi_cmd->byte2 = SRS_SUBQ; 2675 scsi_cmd->subchan_format = format; 2676 scsi_cmd->track = track; 2677 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 2678 scsi_cmd->control = 0; 2679 2680 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2681 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2682 2683 xpt_release_ccb(ccb); 2684 2685 return(error); 2686 } 2687 2688 2689 static int 2690 cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page) 2691 { 2692 struct scsi_mode_sense_6 *scsi_cmd; 2693 struct ccb_scsiio *csio; 2694 union ccb *ccb; 2695 int error; 2696 2697 ccb = cdgetccb(periph, /* priority */ 1); 2698 2699 csio = &ccb->csio; 2700 2701 bzero(data, sizeof(*data)); 2702 cam_fill_csio(csio, 2703 /* retries */ 1, 2704 /* cbfcnp */ cddone, 2705 /* flags */ CAM_DIR_IN, 2706 /* tag_action */ MSG_SIMPLE_Q_TAG, 2707 /* data_ptr */ (u_int8_t *)data, 2708 /* dxfer_len */ sizeof(*data), 2709 /* sense_len */ SSD_FULL_SIZE, 2710 sizeof(struct scsi_mode_sense_6), 2711 /* timeout */ 50000); 2712 2713 scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes; 2714 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2715 2716 scsi_cmd->page = page; 2717 scsi_cmd->length = sizeof(*data) & 0xff; 2718 scsi_cmd->opcode = MODE_SENSE; 2719 2720 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2721 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2722 2723 xpt_release_ccb(ccb); 2724 2725 return(error); 2726 } 2727 2728 static int 2729 cdsetmode(struct cam_periph *periph, struct cd_mode_data *data) 2730 { 2731 struct scsi_mode_select_6 *scsi_cmd; 2732 struct ccb_scsiio *csio; 2733 union ccb *ccb; 2734 int error; 2735 2736 ccb = cdgetccb(periph, /* priority */ 1); 2737 2738 csio = &ccb->csio; 2739 2740 error = 0; 2741 2742 cam_fill_csio(csio, 2743 /* retries */ 1, 2744 /* cbfcnp */ cddone, 2745 /* flags */ CAM_DIR_OUT, 2746 /* tag_action */ MSG_SIMPLE_Q_TAG, 2747 /* data_ptr */ (u_int8_t *)data, 2748 /* dxfer_len */ sizeof(*data), 2749 /* sense_len */ SSD_FULL_SIZE, 2750 sizeof(struct scsi_mode_select_6), 2751 /* timeout */ 50000); 2752 2753 scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes; 2754 2755 bzero(scsi_cmd, sizeof(*scsi_cmd)); 2756 scsi_cmd->opcode = MODE_SELECT; 2757 scsi_cmd->byte2 |= SMS_PF; 2758 scsi_cmd->length = sizeof(*data) & 0xff; 2759 data->header.data_length = 0; 2760 /* 2761 * SONY drives do not allow a mode select with a medium_type 2762 * value that has just been returned by a mode sense; use a 2763 * medium_type of 0 (Default) instead. 2764 */ 2765 data->header.medium_type = 0; 2766 2767 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2768 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2769 2770 xpt_release_ccb(ccb); 2771 2772 return(error); 2773 } 2774 2775 2776 static int 2777 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 2778 { 2779 struct ccb_scsiio *csio; 2780 union ccb *ccb; 2781 int error; 2782 u_int8_t cdb_len; 2783 2784 error = 0; 2785 ccb = cdgetccb(periph, /* priority */ 1); 2786 csio = &ccb->csio; 2787 /* 2788 * Use the smallest possible command to perform the operation. 2789 */ 2790 if ((len & 0xffff0000) == 0) { 2791 /* 2792 * We can fit in a 10 byte cdb. 2793 */ 2794 struct scsi_play_10 *scsi_cmd; 2795 2796 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 2797 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2798 scsi_cmd->op_code = PLAY_10; 2799 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2800 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 2801 cdb_len = sizeof(*scsi_cmd); 2802 } else { 2803 struct scsi_play_12 *scsi_cmd; 2804 2805 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 2806 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2807 scsi_cmd->op_code = PLAY_12; 2808 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2809 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 2810 cdb_len = sizeof(*scsi_cmd); 2811 } 2812 cam_fill_csio(csio, 2813 /*retries*/2, 2814 cddone, 2815 /*flags*/CAM_DIR_NONE, 2816 MSG_SIMPLE_Q_TAG, 2817 /*dataptr*/NULL, 2818 /*datalen*/0, 2819 /*sense_len*/SSD_FULL_SIZE, 2820 cdb_len, 2821 /*timeout*/50 * 1000); 2822 2823 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2824 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2825 2826 xpt_release_ccb(ccb); 2827 2828 return(error); 2829 } 2830 2831 static int 2832 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 2833 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 2834 { 2835 struct scsi_play_msf *scsi_cmd; 2836 struct ccb_scsiio *csio; 2837 union ccb *ccb; 2838 int error; 2839 2840 error = 0; 2841 2842 ccb = cdgetccb(periph, /* priority */ 1); 2843 2844 csio = &ccb->csio; 2845 2846 cam_fill_csio(csio, 2847 /* retries */ 1, 2848 /* cbfcnp */ cddone, 2849 /* flags */ CAM_DIR_NONE, 2850 /* tag_action */ MSG_SIMPLE_Q_TAG, 2851 /* data_ptr */ NULL, 2852 /* dxfer_len */ 0, 2853 /* sense_len */ SSD_FULL_SIZE, 2854 sizeof(struct scsi_play_msf), 2855 /* timeout */ 50000); 2856 2857 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 2858 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2859 2860 scsi_cmd->op_code = PLAY_MSF; 2861 scsi_cmd->start_m = startm; 2862 scsi_cmd->start_s = starts; 2863 scsi_cmd->start_f = startf; 2864 scsi_cmd->end_m = endm; 2865 scsi_cmd->end_s = ends; 2866 scsi_cmd->end_f = endf; 2867 2868 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2869 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2870 2871 xpt_release_ccb(ccb); 2872 2873 return(error); 2874 } 2875 2876 2877 static int 2878 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 2879 u_int32_t etrack, u_int32_t eindex) 2880 { 2881 struct scsi_play_track *scsi_cmd; 2882 struct ccb_scsiio *csio; 2883 union ccb *ccb; 2884 int error; 2885 2886 error = 0; 2887 2888 ccb = cdgetccb(periph, /* priority */ 1); 2889 2890 csio = &ccb->csio; 2891 2892 cam_fill_csio(csio, 2893 /* retries */ 1, 2894 /* cbfcnp */ cddone, 2895 /* flags */ CAM_DIR_NONE, 2896 /* tag_action */ MSG_SIMPLE_Q_TAG, 2897 /* data_ptr */ NULL, 2898 /* dxfer_len */ 0, 2899 /* sense_len */ SSD_FULL_SIZE, 2900 sizeof(struct scsi_play_track), 2901 /* timeout */ 50000); 2902 2903 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 2904 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2905 2906 scsi_cmd->op_code = PLAY_TRACK; 2907 scsi_cmd->start_track = strack; 2908 scsi_cmd->start_index = sindex; 2909 scsi_cmd->end_track = etrack; 2910 scsi_cmd->end_index = eindex; 2911 2912 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2913 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2914 2915 xpt_release_ccb(ccb); 2916 2917 return(error); 2918 } 2919 2920 static int 2921 cdpause(struct cam_periph *periph, u_int32_t go) 2922 { 2923 struct scsi_pause *scsi_cmd; 2924 struct ccb_scsiio *csio; 2925 union ccb *ccb; 2926 int error; 2927 2928 error = 0; 2929 2930 ccb = cdgetccb(periph, /* priority */ 1); 2931 2932 csio = &ccb->csio; 2933 2934 cam_fill_csio(csio, 2935 /* retries */ 1, 2936 /* cbfcnp */ cddone, 2937 /* flags */ CAM_DIR_NONE, 2938 /* tag_action */ MSG_SIMPLE_Q_TAG, 2939 /* data_ptr */ NULL, 2940 /* dxfer_len */ 0, 2941 /* sense_len */ SSD_FULL_SIZE, 2942 sizeof(struct scsi_pause), 2943 /* timeout */ 50000); 2944 2945 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 2946 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2947 2948 scsi_cmd->op_code = PAUSE; 2949 scsi_cmd->resume = go; 2950 2951 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2952 /*sense_flags*/SF_RETRY_UA |SF_RETRY_SELTO); 2953 2954 xpt_release_ccb(ccb); 2955 2956 return(error); 2957 } 2958 2959 static int 2960 cdstartunit(struct cam_periph *periph) 2961 { 2962 union ccb *ccb; 2963 int error; 2964 2965 error = 0; 2966 2967 ccb = cdgetccb(periph, /* priority */ 1); 2968 2969 scsi_start_stop(&ccb->csio, 2970 /* retries */ 1, 2971 /* cbfcnp */ cddone, 2972 /* tag_action */ MSG_SIMPLE_Q_TAG, 2973 /* start */ TRUE, 2974 /* load_eject */ TRUE, 2975 /* immediate */ FALSE, 2976 /* sense_len */ SSD_FULL_SIZE, 2977 /* timeout */ 50000); 2978 2979 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2980 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2981 2982 xpt_release_ccb(ccb); 2983 2984 return(error); 2985 } 2986 2987 static int 2988 cdstopunit(struct cam_periph *periph, u_int32_t eject) 2989 { 2990 union ccb *ccb; 2991 int error; 2992 2993 error = 0; 2994 2995 ccb = cdgetccb(periph, /* priority */ 1); 2996 2997 scsi_start_stop(&ccb->csio, 2998 /* retries */ 1, 2999 /* cbfcnp */ cddone, 3000 /* tag_action */ MSG_SIMPLE_Q_TAG, 3001 /* start */ FALSE, 3002 /* load_eject */ eject, 3003 /* immediate */ FALSE, 3004 /* sense_len */ SSD_FULL_SIZE, 3005 /* timeout */ 50000); 3006 3007 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 3008 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 3009 3010 xpt_release_ccb(ccb); 3011 3012 return(error); 3013 } 3014