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 * $FreeBSD$ 28 */ 29 /* 30 * Portions of this driver taken from the original FreeBSD cd driver. 31 * Written by Julian Elischer (julian@tfs.com) 32 * for TRW Financial Systems for use under the MACH(2.5) operating system. 33 * 34 * TRW Financial Systems, in accordance with their agreement with Carnegie 35 * Mellon University, makes this software available to CMU to distribute 36 * or use in any manner that they see fit as long as this message is kept with 37 * the software. For this reason TFS also grants any other persons or 38 * organisations permission to use or modify this software. 39 * 40 * TFS supplies this software to be publicly redistributed 41 * on the understanding that TFS is not responsible for the correct 42 * functioning of this software in any circumstances. 43 * 44 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 45 * 46 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 47 */ 48 49 #include "opt_cd.h" 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/buf.h> 55 #include <sys/conf.h> 56 #include <sys/disk.h> 57 #include <sys/malloc.h> 58 #include <sys/cdio.h> 59 #include <sys/devicestat.h> 60 #include <sys/sysctl.h> 61 62 #include <cam/cam.h> 63 #include <cam/cam_ccb.h> 64 #include <cam/cam_extend.h> 65 #include <cam/cam_periph.h> 66 #include <cam/cam_xpt_periph.h> 67 #include <cam/cam_queue.h> 68 69 #include <cam/scsi/scsi_message.h> 70 #include <cam/scsi/scsi_da.h> 71 #include <cam/scsi/scsi_cd.h> 72 73 #define LEADOUT 0xaa /* leadout toc entry */ 74 75 struct cd_params { 76 u_int32_t blksize; 77 u_long disksize; 78 }; 79 80 typedef enum { 81 CD_Q_NONE = 0x00, 82 CD_Q_NO_TOUCH = 0x01, 83 CD_Q_BCD_TRACKS = 0x02, 84 CD_Q_NO_CHANGER = 0x04, 85 CD_Q_CHANGER = 0x08 86 } cd_quirks; 87 88 typedef enum { 89 CD_FLAG_INVALID = 0x001, 90 CD_FLAG_NEW_DISC = 0x002, 91 CD_FLAG_DISC_LOCKED = 0x004, 92 CD_FLAG_DISC_REMOVABLE = 0x008, 93 CD_FLAG_TAGGED_QUEUING = 0x010, 94 CD_FLAG_CHANGER = 0x040, 95 CD_FLAG_ACTIVE = 0x080, 96 CD_FLAG_SCHED_ON_COMP = 0x100, 97 CD_FLAG_RETRY_UA = 0x200 98 } cd_flags; 99 100 typedef enum { 101 CD_CCB_PROBE = 0x01, 102 CD_CCB_BUFFER_IO = 0x02, 103 CD_CCB_WAITING = 0x03, 104 CD_CCB_TYPE_MASK = 0x0F, 105 CD_CCB_RETRY_UA = 0x10 106 } cd_ccb_state; 107 108 typedef enum { 109 CHANGER_TIMEOUT_SCHED = 0x01, 110 CHANGER_SHORT_TMOUT_SCHED = 0x02, 111 CHANGER_MANUAL_CALL = 0x04, 112 CHANGER_NEED_TIMEOUT = 0x08 113 } cd_changer_flags; 114 115 #define ccb_state ppriv_field0 116 #define ccb_bp ppriv_ptr1 117 118 typedef enum { 119 CD_STATE_PROBE, 120 CD_STATE_NORMAL 121 } cd_state; 122 123 struct cd_softc { 124 cam_pinfo pinfo; 125 cd_state state; 126 volatile cd_flags flags; 127 struct buf_queue_head buf_queue; 128 LIST_HEAD(, ccb_hdr) pending_ccbs; 129 struct cd_params params; 130 struct disk disk; 131 union ccb saved_ccb; 132 cd_quirks quirks; 133 struct devstat device_stats; 134 STAILQ_ENTRY(cd_softc) changer_links; 135 struct cdchanger *changer; 136 int bufs_left; 137 struct cam_periph *periph; 138 }; 139 140 struct cd_quirk_entry { 141 struct scsi_inquiry_pattern inq_pat; 142 cd_quirks quirks; 143 }; 144 145 /* 146 * These quirk entries aren't strictly necessary. Basically, what they do 147 * is tell cdregister() up front that a device is a changer. Otherwise, it 148 * will figure that fact out once it sees a LUN on the device that is 149 * greater than 0. If it is known up front that a device is a changer, all 150 * I/O to the device will go through the changer scheduling routines, as 151 * opposed to the "normal" CD code. 152 */ 153 static struct cd_quirk_entry cd_quirk_table[] = 154 { 155 { 156 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 157 /*quirks*/ CD_Q_CHANGER 158 }, 159 { 160 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM-604X", 161 "*"}, /* quirks */ CD_Q_CHANGER 162 }, 163 { 164 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 165 /* quirks */ CD_Q_BCD_TRACKS 166 } 167 }; 168 169 #ifndef MIN 170 #define MIN(x,y) ((x<y) ? x : y) 171 #endif 172 173 #define CD_CDEV_MAJOR 15 174 #define CD_BDEV_MAJOR 6 175 176 static d_open_t cdopen; 177 static d_close_t cdclose; 178 static d_ioctl_t cdioctl; 179 static d_strategy_t cdstrategy; 180 181 static periph_init_t cdinit; 182 static periph_ctor_t cdregister; 183 static periph_dtor_t cdcleanup; 184 static periph_start_t cdstart; 185 static periph_oninv_t cdoninvalidate; 186 static void cdasync(void *callback_arg, u_int32_t code, 187 struct cam_path *path, void *arg); 188 static void cdshorttimeout(void *arg); 189 static void cdschedule(struct cam_periph *periph, int priority); 190 static void cdrunchangerqueue(void *arg); 191 static void cdchangerschedule(struct cd_softc *softc); 192 static int cdrunccb(union ccb *ccb, 193 int (*error_routine)(union ccb *ccb, 194 u_int32_t cam_flags, 195 u_int32_t sense_flags), 196 u_int32_t cam_flags, u_int32_t sense_flags); 197 static union ccb *cdgetccb(struct cam_periph *periph, 198 u_int32_t priority); 199 static void cddone(struct cam_periph *periph, 200 union ccb *start_ccb); 201 static int cderror(union ccb *ccb, u_int32_t cam_flags, 202 u_int32_t sense_flags); 203 static void cdprevent(struct cam_periph *periph, int action); 204 static int cdsize(dev_t dev, u_int32_t *size); 205 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 206 u_int32_t start, struct cd_toc_entry *data, 207 u_int32_t len); 208 static int cdgetmode(struct cam_periph *periph, 209 struct cd_mode_data *data, u_int32_t page); 210 static int cdsetmode(struct cam_periph *periph, 211 struct cd_mode_data *data); 212 static int cdplay(struct cam_periph *periph, u_int32_t blk, 213 u_int32_t len); 214 static int cdreadsubchannel(struct cam_periph *periph, 215 u_int32_t mode, u_int32_t format, 216 int track, 217 struct cd_sub_channel_info *data, 218 u_int32_t len); 219 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 220 u_int32_t starts, u_int32_t startf, 221 u_int32_t endm, u_int32_t ends, 222 u_int32_t endf); 223 static int cdplaytracks(struct cam_periph *periph, 224 u_int32_t strack, u_int32_t sindex, 225 u_int32_t etrack, u_int32_t eindex); 226 static int cdpause(struct cam_periph *periph, u_int32_t go); 227 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 228 static int cdstartunit(struct cam_periph *periph); 229 230 static struct periph_driver cddriver = 231 { 232 cdinit, "cd", 233 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 234 }; 235 236 DATA_SET(periphdriver_set, cddriver); 237 238 /* For 2.2-stable support */ 239 #ifndef D_DISK 240 #define D_DISK 0 241 #endif 242 static struct cdevsw cd_cdevsw = { 243 /* open */ cdopen, 244 /* close */ cdclose, 245 /* read */ physread, 246 /* write */ nowrite, 247 /* ioctl */ cdioctl, 248 /* poll */ nopoll, 249 /* mmap */ nommap, 250 /* strategy */ cdstrategy, 251 /* name */ "cd", 252 /* maj */ CD_CDEV_MAJOR, 253 /* dump */ nodump, 254 /* psize */ nopsize, 255 /* flags */ D_DISK, 256 /* bmaj */ CD_BDEV_MAJOR 257 }; 258 static struct cdevsw cddisk_cdevsw; 259 260 static struct extend_array *cdperiphs; 261 static int num_changers; 262 263 #ifndef CHANGER_MIN_BUSY_SECONDS 264 #define CHANGER_MIN_BUSY_SECONDS 5 265 #endif 266 #ifndef CHANGER_MAX_BUSY_SECONDS 267 #define CHANGER_MAX_BUSY_SECONDS 15 268 #endif 269 270 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 271 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 272 273 /* 274 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl 275 * variables. 276 */ 277 SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 278 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 279 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 280 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 281 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 282 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 283 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 284 285 struct cdchanger { 286 path_id_t path_id; 287 target_id_t target_id; 288 int num_devices; 289 struct camq devq; 290 struct timeval start_time; 291 struct cd_softc *cur_device; 292 struct callout_handle short_handle; 293 struct callout_handle long_handle; 294 volatile cd_changer_flags flags; 295 STAILQ_ENTRY(cdchanger) changer_links; 296 STAILQ_HEAD(chdevlist, cd_softc) chluns; 297 }; 298 299 static STAILQ_HEAD(changerlist, cdchanger) changerq; 300 301 void 302 cdinit(void) 303 { 304 cam_status status; 305 struct cam_path *path; 306 307 /* 308 * Create our extend array for storing the devices we attach to. 309 */ 310 cdperiphs = cam_extend_new(); 311 if (cdperiphs == NULL) { 312 printf("cd: Failed to alloc extend array!\n"); 313 return; 314 } 315 316 /* 317 * Install a global async callback. This callback will 318 * receive async callbacks like "new device found". 319 */ 320 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 321 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 322 323 if (status == CAM_REQ_CMP) { 324 struct ccb_setasync csa; 325 326 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 327 csa.ccb_h.func_code = XPT_SASYNC_CB; 328 csa.event_enable = AC_FOUND_DEVICE; 329 csa.callback = cdasync; 330 csa.callback_arg = NULL; 331 xpt_action((union ccb *)&csa); 332 status = csa.ccb_h.status; 333 xpt_free_path(path); 334 } 335 336 if (status != CAM_REQ_CMP) { 337 printf("cd: Failed to attach master async callback " 338 "due to status 0x%x!\n", status); 339 } 340 } 341 342 static void 343 cdoninvalidate(struct cam_periph *periph) 344 { 345 int s; 346 struct cd_softc *softc; 347 struct buf *q_bp; 348 struct ccb_setasync csa; 349 350 softc = (struct cd_softc *)periph->softc; 351 352 /* 353 * De-register any async callbacks. 354 */ 355 xpt_setup_ccb(&csa.ccb_h, periph->path, 356 /* priority */ 5); 357 csa.ccb_h.func_code = XPT_SASYNC_CB; 358 csa.event_enable = 0; 359 csa.callback = cdasync; 360 csa.callback_arg = periph; 361 xpt_action((union ccb *)&csa); 362 363 softc->flags |= CD_FLAG_INVALID; 364 365 /* 366 * Although the oninvalidate() routines are always called at 367 * splsoftcam, we need to be at splbio() here to keep the buffer 368 * queue from being modified while we traverse it. 369 */ 370 s = splbio(); 371 372 /* 373 * Return all queued I/O with ENXIO. 374 * XXX Handle any transactions queued to the card 375 * with XPT_ABORT_CCB. 376 */ 377 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 378 bufq_remove(&softc->buf_queue, q_bp); 379 q_bp->b_resid = q_bp->b_bcount; 380 q_bp->b_error = ENXIO; 381 q_bp->b_flags |= B_ERROR; 382 biodone(q_bp); 383 } 384 splx(s); 385 386 /* 387 * If this device is part of a changer, and it was scheduled 388 * to run, remove it from the run queue since we just nuked 389 * all of its scheduled I/O. 390 */ 391 if ((softc->flags & CD_FLAG_CHANGER) 392 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 393 camq_remove(&softc->changer->devq, softc->pinfo.index); 394 395 xpt_print_path(periph->path); 396 printf("lost device\n"); 397 } 398 399 static void 400 cdcleanup(struct cam_periph *periph) 401 { 402 struct cd_softc *softc; 403 int s; 404 405 softc = (struct cd_softc *)periph->softc; 406 407 xpt_print_path(periph->path); 408 printf("removing device entry\n"); 409 410 s = splsoftcam(); 411 /* 412 * In the queued, non-active case, the device in question 413 * has already been removed from the changer run queue. Since this 414 * device is active, we need to de-activate it, and schedule 415 * another device to run. (if there is another one to run) 416 */ 417 if ((softc->flags & CD_FLAG_CHANGER) 418 && (softc->flags & CD_FLAG_ACTIVE)) { 419 420 /* 421 * The purpose of the short timeout is soley to determine 422 * whether the current device has finished or not. Well, 423 * since we're removing the active device, we know that it 424 * is finished. So, get rid of the short timeout. 425 * Otherwise, if we're in the time period before the short 426 * timeout fires, and there are no other devices in the 427 * queue to run, there won't be any other device put in the 428 * active slot. i.e., when we call cdrunchangerqueue() 429 * below, it won't do anything. Then, when the short 430 * timeout fires, it'll look at the "current device", which 431 * we are free below, and possibly panic the kernel on a 432 * bogus pointer reference. 433 * 434 * The long timeout doesn't really matter, since we 435 * decrement the qfrozen_cnt to indicate that there is 436 * nothing in the active slot now. Therefore, there won't 437 * be any bogus pointer references there. 438 */ 439 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 440 untimeout(cdshorttimeout, softc->changer, 441 softc->changer->short_handle); 442 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 443 } 444 softc->changer->devq.qfrozen_cnt--; 445 softc->changer->flags |= CHANGER_MANUAL_CALL; 446 cdrunchangerqueue(softc->changer); 447 } 448 449 /* 450 * If we're removing the last device on the changer, go ahead and 451 * remove the changer device structure. 452 */ 453 if ((softc->flags & CD_FLAG_CHANGER) 454 && (--softc->changer->num_devices == 0)) { 455 456 /* 457 * Theoretically, there shouldn't be any timeouts left, but 458 * I'm not completely sure that that will be the case. So, 459 * it won't hurt to check and see if there are any left. 460 */ 461 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 462 untimeout(cdrunchangerqueue, softc->changer, 463 softc->changer->long_handle); 464 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 465 } 466 467 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 468 untimeout(cdshorttimeout, softc->changer, 469 softc->changer->short_handle); 470 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 471 } 472 473 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 474 changer_links); 475 xpt_print_path(periph->path); 476 printf("removing changer entry\n"); 477 free(softc->changer, M_DEVBUF); 478 num_changers--; 479 } 480 devstat_remove_entry(&softc->device_stats); 481 cam_extend_release(cdperiphs, periph->unit_number); 482 free(softc, M_DEVBUF); 483 splx(s); 484 } 485 486 static void 487 cdasync(void *callback_arg, u_int32_t code, 488 struct cam_path *path, void *arg) 489 { 490 struct cam_periph *periph; 491 492 periph = (struct cam_periph *)callback_arg; 493 switch (code) { 494 case AC_FOUND_DEVICE: 495 { 496 struct ccb_getdev *cgd; 497 cam_status status; 498 499 cgd = (struct ccb_getdev *)arg; 500 501 if ((cgd->pd_type != T_CDROM) && (cgd->pd_type != T_WORM)) 502 break; 503 504 /* 505 * Allocate a peripheral instance for 506 * this device and start the probe 507 * process. 508 */ 509 status = cam_periph_alloc(cdregister, cdoninvalidate, 510 cdcleanup, cdstart, 511 "cd", CAM_PERIPH_BIO, 512 cgd->ccb_h.path, cdasync, 513 AC_FOUND_DEVICE, cgd); 514 515 if (status != CAM_REQ_CMP 516 && status != CAM_REQ_INPROG) 517 printf("cdasync: Unable to attach new device " 518 "due to status 0x%x\n", status); 519 520 break; 521 } 522 case AC_SENT_BDR: 523 case AC_BUS_RESET: 524 { 525 struct cd_softc *softc; 526 struct ccb_hdr *ccbh; 527 int s; 528 529 softc = (struct cd_softc *)periph->softc; 530 s = splsoftcam(); 531 /* 532 * Don't fail on the expected unit attention 533 * that will occur. 534 */ 535 softc->flags |= CD_FLAG_RETRY_UA; 536 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 537 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 538 ccbh->ccb_state |= CD_CCB_RETRY_UA; 539 splx(s); 540 /* FALLTHROUGH */ 541 } 542 default: 543 cam_periph_async(periph, code, path, arg); 544 break; 545 } 546 } 547 548 static cam_status 549 cdregister(struct cam_periph *periph, void *arg) 550 { 551 struct cd_softc *softc; 552 struct ccb_setasync csa; 553 struct ccb_getdev *cgd; 554 caddr_t match; 555 556 cgd = (struct ccb_getdev *)arg; 557 if (periph == NULL) { 558 printf("cdregister: periph was NULL!!\n"); 559 return(CAM_REQ_CMP_ERR); 560 } 561 if (cgd == NULL) { 562 printf("cdregister: no getdev CCB, can't register device\n"); 563 return(CAM_REQ_CMP_ERR); 564 } 565 566 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 567 568 if (softc == NULL) { 569 printf("cdregister: Unable to probe new device. " 570 "Unable to allocate softc\n"); 571 return(CAM_REQ_CMP_ERR); 572 } 573 574 bzero(softc, sizeof(*softc)); 575 LIST_INIT(&softc->pending_ccbs); 576 softc->state = CD_STATE_PROBE; 577 bufq_init(&softc->buf_queue); 578 if (SID_IS_REMOVABLE(&cgd->inq_data)) 579 softc->flags |= CD_FLAG_DISC_REMOVABLE; 580 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 581 softc->flags |= CD_FLAG_TAGGED_QUEUING; 582 583 periph->softc = softc; 584 softc->periph = periph; 585 586 cam_extend_set(cdperiphs, periph->unit_number, periph); 587 588 /* 589 * See if this device has any quirks. 590 */ 591 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 592 (caddr_t)cd_quirk_table, 593 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 594 sizeof(*cd_quirk_table), scsi_inquiry_match); 595 596 if (match != NULL) 597 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 598 else 599 softc->quirks = CD_Q_NONE; 600 601 /* 602 * We need to register the statistics structure for this device, 603 * but we don't have the blocksize yet for it. So, we register 604 * the structure and indicate that we don't have the blocksize 605 * yet. Unlike other SCSI peripheral drivers, we explicitly set 606 * the device type here to be CDROM, rather than just ORing in 607 * cgd->pd_type. This is because this driver can attach to either 608 * CDROM or WORM devices, and we want this peripheral driver to 609 * show up in the devstat list as a CD peripheral driver, not a 610 * WORM peripheral driver. WORM drives will also have the WORM 611 * driver attached to them. 612 */ 613 devstat_add_entry(&softc->device_stats, "cd", 614 periph->unit_number, 0, 615 DEVSTAT_BS_UNAVAILABLE, 616 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 617 DEVSTAT_PRIORITY_CD); 618 disk_create(periph->unit_number, &softc->disk, 619 DSO_NOLABELS | DSO_ONESLICE, 620 &cd_cdevsw, &cddisk_cdevsw); 621 622 /* 623 * Add an async callback so that we get 624 * notified if this device goes away. 625 */ 626 xpt_setup_ccb(&csa.ccb_h, periph->path, 627 /* priority */ 5); 628 csa.ccb_h.func_code = XPT_SASYNC_CB; 629 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 630 csa.callback = cdasync; 631 csa.callback_arg = periph; 632 xpt_action((union ccb *)&csa); 633 634 /* 635 * If the target lun is greater than 0, we most likely have a CD 636 * changer device. Check the quirk entries as well, though, just 637 * in case someone has a CD tower with one lun per drive or 638 * something like that. Also, if we know up front that a 639 * particular device is a changer, we can mark it as such starting 640 * with lun 0, instead of lun 1. It shouldn't be necessary to have 641 * a quirk entry to define something as a changer, however. 642 */ 643 if (((cgd->ccb_h.target_lun > 0) 644 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 645 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 646 struct cdchanger *nchanger; 647 struct cam_periph *nperiph; 648 struct cam_path *path; 649 cam_status status; 650 int found; 651 652 /* Set the changer flag in the current device's softc */ 653 softc->flags |= CD_FLAG_CHANGER; 654 655 if (num_changers == 0) 656 STAILQ_INIT(&changerq); 657 658 /* 659 * Now, look around for an existing changer device with the 660 * same path and target ID as the current device. 661 */ 662 for (found = 0, 663 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 664 nchanger != NULL; 665 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 666 if ((nchanger->path_id == cgd->ccb_h.path_id) 667 && (nchanger->target_id == cgd->ccb_h.target_id)) { 668 found = 1; 669 break; 670 } 671 } 672 673 /* 674 * If we found a matching entry, just add this device to 675 * the list of devices on this changer. 676 */ 677 if (found == 1) { 678 struct chdevlist *chlunhead; 679 680 chlunhead = &nchanger->chluns; 681 682 /* 683 * XXX KDM look at consolidating this code with the 684 * code below in a separate function. 685 */ 686 687 /* 688 * Create a path with lun id 0, and see if we can 689 * find a matching device 690 */ 691 status = xpt_create_path(&path, /*periph*/ periph, 692 cgd->ccb_h.path_id, 693 cgd->ccb_h.target_id, 0); 694 695 if ((status == CAM_REQ_CMP) 696 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 697 struct cd_softc *nsoftc; 698 699 nsoftc = (struct cd_softc *)nperiph->softc; 700 701 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 702 nsoftc->flags |= CD_FLAG_CHANGER; 703 nchanger->num_devices++; 704 if (camq_resize(&nchanger->devq, 705 nchanger->num_devices)!=CAM_REQ_CMP){ 706 printf("cdregister: " 707 "camq_resize " 708 "failed, changer " 709 "support may " 710 "be messed up\n"); 711 } 712 nsoftc->changer = nchanger; 713 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 714 715 STAILQ_INSERT_TAIL(&nchanger->chluns, 716 nsoftc,changer_links); 717 } 718 } else if (status == CAM_REQ_CMP) 719 xpt_free_path(path); 720 else { 721 printf("cdregister: unable to allocate path\n" 722 "cdregister: changer support may be " 723 "broken\n"); 724 } 725 726 nchanger->num_devices++; 727 728 softc->changer = nchanger; 729 softc->pinfo.index = CAM_UNQUEUED_INDEX; 730 731 if (camq_resize(&nchanger->devq, 732 nchanger->num_devices) != CAM_REQ_CMP) { 733 printf("cdregister: camq_resize " 734 "failed, changer support may " 735 "be messed up\n"); 736 } 737 738 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 739 } 740 /* 741 * In this case, we don't already have an entry for this 742 * particular changer, so we need to create one, add it to 743 * the queue, and queue this device on the list for this 744 * changer. Before we queue this device, however, we need 745 * to search for lun id 0 on this target, and add it to the 746 * queue first, if it exists. (and if it hasn't already 747 * been marked as part of the changer.) 748 */ 749 else { 750 nchanger = malloc(sizeof(struct cdchanger), 751 M_DEVBUF, M_NOWAIT); 752 753 if (nchanger == NULL) { 754 softc->flags &= ~CD_FLAG_CHANGER; 755 printf("cdregister: unable to malloc " 756 "changer structure\ncdregister: " 757 "changer support disabled\n"); 758 759 /* 760 * Yes, gotos can be gross but in this case 761 * I think it's justified.. 762 */ 763 goto cdregisterexit; 764 } 765 766 /* zero the structure */ 767 bzero(nchanger, sizeof(struct cdchanger)); 768 769 if (camq_init(&nchanger->devq, 1) != 0) { 770 softc->flags &= ~CD_FLAG_CHANGER; 771 printf("cdregister: changer support " 772 "disabled\n"); 773 goto cdregisterexit; 774 } 775 776 num_changers++; 777 778 nchanger->path_id = cgd->ccb_h.path_id; 779 nchanger->target_id = cgd->ccb_h.target_id; 780 781 /* this is superfluous, but it makes things clearer */ 782 nchanger->num_devices = 0; 783 784 STAILQ_INIT(&nchanger->chluns); 785 786 STAILQ_INSERT_TAIL(&changerq, nchanger, 787 changer_links); 788 789 /* 790 * Create a path with lun id 0, and see if we can 791 * find a matching device 792 */ 793 status = xpt_create_path(&path, /*periph*/ periph, 794 cgd->ccb_h.path_id, 795 cgd->ccb_h.target_id, 0); 796 797 /* 798 * If we were able to allocate the path, and if we 799 * find a matching device and it isn't already 800 * marked as part of a changer, then we add it to 801 * the current changer. 802 */ 803 if ((status == CAM_REQ_CMP) 804 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 805 && ((((struct cd_softc *)periph->softc)->flags & 806 CD_FLAG_CHANGER) == 0)) { 807 struct cd_softc *nsoftc; 808 809 nsoftc = (struct cd_softc *)nperiph->softc; 810 811 nsoftc->flags |= CD_FLAG_CHANGER; 812 nchanger->num_devices++; 813 if (camq_resize(&nchanger->devq, 814 nchanger->num_devices) != CAM_REQ_CMP) { 815 printf("cdregister: camq_resize " 816 "failed, changer support may " 817 "be messed up\n"); 818 } 819 nsoftc->changer = nchanger; 820 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 821 822 STAILQ_INSERT_TAIL(&nchanger->chluns, 823 nsoftc, changer_links); 824 } else if (status == CAM_REQ_CMP) 825 xpt_free_path(path); 826 else { 827 printf("cdregister: unable to allocate path\n" 828 "cdregister: changer support may be " 829 "broken\n"); 830 } 831 832 softc->changer = nchanger; 833 softc->pinfo.index = CAM_UNQUEUED_INDEX; 834 nchanger->num_devices++; 835 if (camq_resize(&nchanger->devq, 836 nchanger->num_devices) != CAM_REQ_CMP) { 837 printf("cdregister: camq_resize " 838 "failed, changer support may " 839 "be messed up\n"); 840 } 841 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 842 changer_links); 843 } 844 } 845 846 cdregisterexit: 847 848 /* Lock this peripheral until we are setup */ 849 /* Can't block */ 850 cam_periph_lock(periph, PRIBIO); 851 852 if ((softc->flags & CD_FLAG_CHANGER) == 0) 853 xpt_schedule(periph, /*priority*/5); 854 else 855 cdschedule(periph, /*priority*/ 5); 856 857 return(CAM_REQ_CMP); 858 } 859 860 static int 861 cdopen(dev_t dev, int flags, int fmt, struct proc *p) 862 { 863 struct disklabel *label; 864 struct cam_periph *periph; 865 struct cd_softc *softc; 866 struct ccb_getdev cgd; 867 u_int32_t size; 868 int unit, error; 869 int s; 870 871 unit = dkunit(dev); 872 periph = cam_extend_get(cdperiphs, unit); 873 874 if (periph == NULL) 875 return (ENXIO); 876 877 softc = (struct cd_softc *)periph->softc; 878 879 /* 880 * Grab splsoftcam and hold it until we lock the peripheral. 881 */ 882 s = splsoftcam(); 883 if (softc->flags & CD_FLAG_INVALID) { 884 splx(s); 885 return(ENXIO); 886 } 887 888 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 889 splx(s); 890 return (error); 891 } 892 893 splx(s); 894 895 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 896 return(ENXIO); 897 898 cdprevent(periph, PR_PREVENT); 899 900 /* find out the size */ 901 if ((error = cdsize(dev, &size)) != 0) { 902 cdprevent(periph, PR_ALLOW); 903 cam_periph_unlock(periph); 904 cam_periph_release(periph); 905 return(error); 906 } 907 908 /* 909 * Build prototype label for whole disk. 910 * Should take information about different data tracks from the 911 * TOC and put it in the partition table. 912 */ 913 label = &softc->disk.d_label; 914 bzero(label, sizeof(*label)); 915 label->d_type = DTYPE_SCSI; 916 917 /* 918 * Grab the inquiry data to get the vendor and product names. 919 * Put them in the typename and packname for the label. 920 */ 921 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 922 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 923 xpt_action((union ccb *)&cgd); 924 925 strncpy(label->d_typename, cgd.inq_data.vendor, 926 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 927 strncpy(label->d_packname, cgd.inq_data.product, 928 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 929 930 label->d_secsize = softc->params.blksize; 931 label->d_secperunit = softc->params.disksize; 932 label->d_flags = D_REMOVABLE; 933 /* 934 * Make partition 'a' cover the whole disk. This is a temporary 935 * compatibility hack. The 'a' partition should not exist, so 936 * the slice code won't create it. The slice code will make 937 * partition (RAW_PART + 'a') cover the whole disk and fill in 938 * some more defaults. 939 */ 940 label->d_partitions[0].p_size = label->d_secperunit; 941 label->d_partitions[0].p_fstype = FS_OTHER; 942 943 /* 944 * We unconditionally (re)set the blocksize each time the 945 * CD device is opened. This is because the CD can change, 946 * and therefore the blocksize might change. 947 * XXX problems here if some slice or partition is still 948 * open with the old size? 949 */ 950 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 951 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 952 softc->device_stats.block_size = softc->params.blksize; 953 954 cam_periph_unlock(periph); 955 956 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 957 958 return (error); 959 } 960 961 static int 962 cdclose(dev_t dev, int flag, int fmt, struct proc *p) 963 { 964 struct cam_periph *periph; 965 struct cd_softc *softc; 966 int unit, error; 967 968 unit = dkunit(dev); 969 periph = cam_extend_get(cdperiphs, unit); 970 if (periph == NULL) 971 return (ENXIO); 972 973 softc = (struct cd_softc *)periph->softc; 974 975 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 976 return (error); 977 978 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 979 cdprevent(periph, PR_ALLOW); 980 981 /* 982 * Since we're closing this CD, mark the blocksize as unavailable. 983 * It will be marked as available whence the CD is opened again. 984 */ 985 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 986 987 cam_periph_unlock(periph); 988 cam_periph_release(periph); 989 990 return (0); 991 } 992 993 static void 994 cdshorttimeout(void *arg) 995 { 996 struct cdchanger *changer; 997 int s; 998 999 s = splsoftcam(); 1000 1001 changer = (struct cdchanger *)arg; 1002 1003 /* Always clear the short timeout flag, since that's what we're in */ 1004 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1005 1006 /* 1007 * Check to see if there is any more pending or outstanding I/O for 1008 * this device. If not, move it out of the active slot. 1009 */ 1010 if ((bufq_first(&changer->cur_device->buf_queue) == NULL) 1011 && (changer->cur_device->device_stats.busy_count == 0)) { 1012 changer->flags |= CHANGER_MANUAL_CALL; 1013 cdrunchangerqueue(changer); 1014 } 1015 1016 splx(s); 1017 } 1018 1019 /* 1020 * This is a wrapper for xpt_schedule. It only applies to changers. 1021 */ 1022 static void 1023 cdschedule(struct cam_periph *periph, int priority) 1024 { 1025 struct cd_softc *softc; 1026 int s; 1027 1028 s = splsoftcam(); 1029 1030 softc = (struct cd_softc *)periph->softc; 1031 1032 /* 1033 * If this device isn't currently queued, and if it isn't 1034 * the active device, then we queue this device and run the 1035 * changer queue if there is no timeout scheduled to do it. 1036 * If this device is the active device, just schedule it 1037 * to run again. If this device is queued, there should be 1038 * a timeout in place already that will make sure it runs. 1039 */ 1040 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1041 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1042 /* 1043 * We don't do anything with the priority here. 1044 * This is strictly a fifo queue. 1045 */ 1046 softc->pinfo.priority = 1; 1047 softc->pinfo.generation = ++softc->changer->devq.generation; 1048 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1049 1050 /* 1051 * Since we just put a device in the changer queue, 1052 * check and see if there is a timeout scheduled for 1053 * this changer. If so, let the timeout handle 1054 * switching this device into the active slot. If 1055 * not, manually call the timeout routine to 1056 * bootstrap things. 1057 */ 1058 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1059 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1060 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){ 1061 softc->changer->flags |= CHANGER_MANUAL_CALL; 1062 cdrunchangerqueue(softc->changer); 1063 } 1064 } else if ((softc->flags & CD_FLAG_ACTIVE) 1065 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1066 xpt_schedule(periph, priority); 1067 1068 splx(s); 1069 1070 } 1071 1072 static void 1073 cdrunchangerqueue(void *arg) 1074 { 1075 struct cd_softc *softc; 1076 struct cdchanger *changer; 1077 int called_from_timeout; 1078 int s; 1079 1080 s = splsoftcam(); 1081 1082 changer = (struct cdchanger *)arg; 1083 1084 /* 1085 * If we have NOT been called from cdstrategy() or cddone(), and 1086 * instead from a timeout routine, go ahead and clear the 1087 * timeout flag. 1088 */ 1089 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1090 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1091 called_from_timeout = 1; 1092 } else 1093 called_from_timeout = 0; 1094 1095 /* Always clear the manual call flag */ 1096 changer->flags &= ~CHANGER_MANUAL_CALL; 1097 1098 /* nothing to do if the queue is empty */ 1099 if (changer->devq.entries <= 0) { 1100 splx(s); 1101 return; 1102 } 1103 1104 /* 1105 * If the changer queue is frozen, that means we have an active 1106 * device. 1107 */ 1108 if (changer->devq.qfrozen_cnt > 0) { 1109 1110 if (changer->cur_device->device_stats.busy_count > 0) { 1111 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1112 changer->cur_device->bufs_left = 1113 changer->cur_device->device_stats.busy_count; 1114 if (called_from_timeout) { 1115 changer->long_handle = 1116 timeout(cdrunchangerqueue, changer, 1117 changer_max_busy_seconds * hz); 1118 changer->flags |= CHANGER_TIMEOUT_SCHED; 1119 } 1120 splx(s); 1121 return; 1122 } 1123 1124 /* 1125 * We always need to reset the frozen count and clear the 1126 * active flag. 1127 */ 1128 changer->devq.qfrozen_cnt--; 1129 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1130 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1131 1132 /* 1133 * Check to see whether the current device has any I/O left 1134 * to do. If so, requeue it at the end of the queue. If 1135 * not, there is no need to requeue it. 1136 */ 1137 if (bufq_first(&changer->cur_device->buf_queue) != NULL) { 1138 1139 changer->cur_device->pinfo.generation = 1140 ++changer->devq.generation; 1141 camq_insert(&changer->devq, 1142 (cam_pinfo *)changer->cur_device); 1143 } 1144 } 1145 1146 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1147 1148 changer->cur_device = softc; 1149 1150 changer->devq.qfrozen_cnt++; 1151 softc->flags |= CD_FLAG_ACTIVE; 1152 1153 /* Just in case this device is waiting */ 1154 wakeup(&softc->changer); 1155 xpt_schedule(softc->periph, /*priority*/ 1); 1156 1157 /* 1158 * Get rid of any pending timeouts, and set a flag to schedule new 1159 * ones so this device gets its full time quantum. 1160 */ 1161 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1162 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1163 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1164 } 1165 1166 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1167 untimeout(cdshorttimeout, changer, changer->short_handle); 1168 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1169 } 1170 1171 /* 1172 * We need to schedule timeouts, but we only do this after the 1173 * first transaction has completed. This eliminates the changer 1174 * switch time. 1175 */ 1176 changer->flags |= CHANGER_NEED_TIMEOUT; 1177 1178 splx(s); 1179 } 1180 1181 static void 1182 cdchangerschedule(struct cd_softc *softc) 1183 { 1184 struct cdchanger *changer; 1185 int s; 1186 1187 s = splsoftcam(); 1188 1189 changer = softc->changer; 1190 1191 /* 1192 * If this is a changer, and this is the current device, 1193 * and this device has at least the minimum time quantum to 1194 * run, see if we can switch it out. 1195 */ 1196 if ((softc->flags & CD_FLAG_ACTIVE) 1197 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1198 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1199 /* 1200 * We try three things here. The first is that we 1201 * check to see whether the schedule on completion 1202 * flag is set. If it is, we decrement the number 1203 * of buffers left, and if it's zero, we reschedule. 1204 * Next, we check to see whether the pending buffer 1205 * queue is empty and whether there are no 1206 * outstanding transactions. If so, we reschedule. 1207 * Next, we see if the pending buffer queue is empty. 1208 * If it is, we set the number of buffers left to 1209 * the current active buffer count and set the 1210 * schedule on complete flag. 1211 */ 1212 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1213 if (--softc->bufs_left == 0) { 1214 softc->changer->flags |= 1215 CHANGER_MANUAL_CALL; 1216 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1217 cdrunchangerqueue(softc->changer); 1218 } 1219 } else if ((bufq_first(&softc->buf_queue) == NULL) 1220 && (softc->device_stats.busy_count == 0)) { 1221 softc->changer->flags |= CHANGER_MANUAL_CALL; 1222 cdrunchangerqueue(softc->changer); 1223 } 1224 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1225 && (softc->flags & CD_FLAG_ACTIVE)) { 1226 1227 /* 1228 * Now that the first transaction to this 1229 * particular device has completed, we can go ahead 1230 * and schedule our timeouts. 1231 */ 1232 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1233 changer->long_handle = 1234 timeout(cdrunchangerqueue, changer, 1235 changer_max_busy_seconds * hz); 1236 changer->flags |= CHANGER_TIMEOUT_SCHED; 1237 } else 1238 printf("cdchangerschedule: already have a long" 1239 " timeout!\n"); 1240 1241 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1242 changer->short_handle = 1243 timeout(cdshorttimeout, changer, 1244 changer_min_busy_seconds * hz); 1245 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1246 } else 1247 printf("cdchangerschedule: already have a short " 1248 "timeout!\n"); 1249 1250 /* 1251 * We just scheduled timeouts, no need to schedule 1252 * more. 1253 */ 1254 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1255 1256 } 1257 splx(s); 1258 } 1259 1260 static int 1261 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1262 u_int32_t cam_flags, 1263 u_int32_t sense_flags), 1264 u_int32_t cam_flags, u_int32_t sense_flags) 1265 { 1266 struct cd_softc *softc; 1267 struct cam_periph *periph; 1268 int error; 1269 1270 periph = xpt_path_periph(ccb->ccb_h.path); 1271 softc = (struct cd_softc *)periph->softc; 1272 1273 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1274 &softc->device_stats); 1275 1276 if (softc->flags & CD_FLAG_CHANGER) 1277 cdchangerschedule(softc); 1278 1279 return(error); 1280 } 1281 1282 static union ccb * 1283 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1284 { 1285 struct cd_softc *softc; 1286 int s; 1287 1288 softc = (struct cd_softc *)periph->softc; 1289 1290 if (softc->flags & CD_FLAG_CHANGER) { 1291 1292 s = splsoftcam(); 1293 1294 /* 1295 * This should work the first time this device is woken up, 1296 * but just in case it doesn't, we use a while loop. 1297 */ 1298 while ((softc->flags & CD_FLAG_ACTIVE) == 0) { 1299 /* 1300 * If this changer isn't already queued, queue it up. 1301 */ 1302 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1303 softc->pinfo.priority = 1; 1304 softc->pinfo.generation = 1305 ++softc->changer->devq.generation; 1306 camq_insert(&softc->changer->devq, 1307 (cam_pinfo *)softc); 1308 } 1309 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1310 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0) 1311 && ((softc->changer->flags 1312 & CHANGER_SHORT_TMOUT_SCHED)==0)) { 1313 softc->changer->flags |= CHANGER_MANUAL_CALL; 1314 cdrunchangerqueue(softc->changer); 1315 } else 1316 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1317 } 1318 splx(s); 1319 } 1320 return(cam_periph_getccb(periph, priority)); 1321 } 1322 1323 1324 /* 1325 * Actually translate the requested transfer into one the physical driver 1326 * can understand. The transfer is described by a buf and will include 1327 * only one physical transfer. 1328 */ 1329 static void 1330 cdstrategy(struct buf *bp) 1331 { 1332 struct cam_periph *periph; 1333 struct cd_softc *softc; 1334 u_int unit, part; 1335 int s; 1336 1337 unit = dkunit(bp->b_dev); 1338 part = dkpart(bp->b_dev); 1339 periph = cam_extend_get(cdperiphs, unit); 1340 if (periph == NULL) { 1341 bp->b_error = ENXIO; 1342 goto bad; 1343 } 1344 1345 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1346 1347 softc = (struct cd_softc *)periph->softc; 1348 1349 /* 1350 * Mask interrupts so that the pack cannot be invalidated until 1351 * after we are in the queue. Otherwise, we might not properly 1352 * clean up one of the buffers. 1353 */ 1354 s = splbio(); 1355 1356 /* 1357 * If the device has been made invalid, error out 1358 */ 1359 if ((softc->flags & CD_FLAG_INVALID)) { 1360 splx(s); 1361 bp->b_error = ENXIO; 1362 goto bad; 1363 } 1364 1365 /* 1366 * Place it in the queue of disk activities for this disk 1367 */ 1368 bufqdisksort(&softc->buf_queue, bp); 1369 1370 splx(s); 1371 1372 /* 1373 * Schedule ourselves for performing the work. We do things 1374 * differently for changers. 1375 */ 1376 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1377 xpt_schedule(periph, /* XXX priority */1); 1378 else 1379 cdschedule(periph, /* priority */ 1); 1380 1381 return; 1382 bad: 1383 bp->b_flags |= B_ERROR; 1384 /* 1385 * Correctly set the buf to indicate a completed xfer 1386 */ 1387 bp->b_resid = bp->b_bcount; 1388 biodone(bp); 1389 return; 1390 } 1391 1392 static void 1393 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1394 { 1395 struct cd_softc *softc; 1396 struct buf *bp; 1397 struct ccb_scsiio *csio; 1398 struct scsi_read_capacity_data *rcap; 1399 int s; 1400 1401 softc = (struct cd_softc *)periph->softc; 1402 1403 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1404 1405 switch (softc->state) { 1406 case CD_STATE_NORMAL: 1407 { 1408 int oldspl; 1409 1410 s = splbio(); 1411 bp = bufq_first(&softc->buf_queue); 1412 if (periph->immediate_priority <= periph->pinfo.priority) { 1413 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1414 1415 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1416 periph_links.sle); 1417 periph->immediate_priority = CAM_PRIORITY_NONE; 1418 splx(s); 1419 wakeup(&periph->ccb_list); 1420 } else if (bp == NULL) { 1421 splx(s); 1422 xpt_release_ccb(start_ccb); 1423 } else { 1424 bufq_remove(&softc->buf_queue, bp); 1425 1426 devstat_start_transaction(&softc->device_stats); 1427 1428 scsi_read_write(&start_ccb->csio, 1429 /*retries*/4, 1430 /* cbfcnp */ cddone, 1431 (bp->b_flags & B_ORDERED) != 0 ? 1432 MSG_ORDERED_Q_TAG : 1433 MSG_SIMPLE_Q_TAG, 1434 /* read */bp->b_flags & B_READ, 1435 /* byte2 */ 0, 1436 /* minimum_cmd_size */ 10, 1437 /* lba */ bp->b_pblkno, 1438 bp->b_bcount / softc->params.blksize, 1439 /* data_ptr */ bp->b_data, 1440 /* dxfer_len */ bp->b_bcount, 1441 /* sense_len */ SSD_FULL_SIZE, 1442 /* timeout */ 30000); 1443 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1444 1445 1446 /* 1447 * Block out any asyncronous callbacks 1448 * while we touch the pending ccb list. 1449 */ 1450 oldspl = splcam(); 1451 LIST_INSERT_HEAD(&softc->pending_ccbs, 1452 &start_ccb->ccb_h, periph_links.le); 1453 splx(oldspl); 1454 1455 /* We expect a unit attention from this device */ 1456 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1457 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1458 softc->flags &= ~CD_FLAG_RETRY_UA; 1459 } 1460 1461 start_ccb->ccb_h.ccb_bp = bp; 1462 bp = bufq_first(&softc->buf_queue); 1463 splx(s); 1464 1465 xpt_action(start_ccb); 1466 } 1467 if (bp != NULL) { 1468 /* Have more work to do, so ensure we stay scheduled */ 1469 xpt_schedule(periph, /* XXX priority */1); 1470 } 1471 break; 1472 } 1473 case CD_STATE_PROBE: 1474 { 1475 1476 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1477 M_TEMP, 1478 M_NOWAIT); 1479 if (rcap == NULL) { 1480 xpt_print_path(periph->path); 1481 printf("cdstart: Couldn't malloc read_capacity data\n"); 1482 /* cd_free_periph??? */ 1483 break; 1484 } 1485 csio = &start_ccb->csio; 1486 scsi_read_capacity(csio, 1487 /*retries*/1, 1488 cddone, 1489 MSG_SIMPLE_Q_TAG, 1490 rcap, 1491 SSD_FULL_SIZE, 1492 /*timeout*/20000); 1493 start_ccb->ccb_h.ccb_bp = NULL; 1494 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1495 xpt_action(start_ccb); 1496 break; 1497 } 1498 } 1499 } 1500 1501 static void 1502 cddone(struct cam_periph *periph, union ccb *done_ccb) 1503 { 1504 struct cd_softc *softc; 1505 struct ccb_scsiio *csio; 1506 1507 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1508 1509 softc = (struct cd_softc *)periph->softc; 1510 csio = &done_ccb->csio; 1511 1512 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1513 case CD_CCB_BUFFER_IO: 1514 { 1515 struct buf *bp; 1516 int error; 1517 int oldspl; 1518 1519 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1520 error = 0; 1521 1522 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1523 int sf; 1524 1525 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1526 sf = SF_RETRY_UA; 1527 else 1528 sf = 0; 1529 1530 /* Retry selection timeouts */ 1531 sf |= SF_RETRY_SELTO; 1532 1533 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) { 1534 /* 1535 * A retry was scheuled, so 1536 * just return. 1537 */ 1538 return; 1539 } 1540 } 1541 1542 if (error != 0) { 1543 int s; 1544 struct buf *q_bp; 1545 1546 xpt_print_path(periph->path); 1547 printf("cddone: got error %#x back\n", error); 1548 s = splbio(); 1549 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { 1550 bufq_remove(&softc->buf_queue, q_bp); 1551 q_bp->b_resid = q_bp->b_bcount; 1552 q_bp->b_error = EIO; 1553 q_bp->b_flags |= B_ERROR; 1554 biodone(q_bp); 1555 } 1556 splx(s); 1557 bp->b_resid = bp->b_bcount; 1558 bp->b_error = error; 1559 bp->b_flags |= B_ERROR; 1560 cam_release_devq(done_ccb->ccb_h.path, 1561 /*relsim_flags*/0, 1562 /*reduction*/0, 1563 /*timeout*/0, 1564 /*getcount_only*/0); 1565 1566 } else { 1567 bp->b_resid = csio->resid; 1568 bp->b_error = 0; 1569 if (bp->b_resid != 0) { 1570 /* Short transfer ??? */ 1571 bp->b_flags |= B_ERROR; 1572 } 1573 } 1574 1575 /* 1576 * Block out any asyncronous callbacks 1577 * while we touch the pending ccb list. 1578 */ 1579 oldspl = splcam(); 1580 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1581 splx(oldspl); 1582 1583 if (softc->flags & CD_FLAG_CHANGER) 1584 cdchangerschedule(softc); 1585 1586 devstat_end_transaction_buf(&softc->device_stats, bp); 1587 biodone(bp); 1588 break; 1589 } 1590 case CD_CCB_PROBE: 1591 { 1592 struct scsi_read_capacity_data *rdcap; 1593 char announce_buf[120]; /* 1594 * Currently (9/30/97) the 1595 * longest possible announce 1596 * buffer is 108 bytes, for the 1597 * first error case below. 1598 * That is 39 bytes for the 1599 * basic string, 16 bytes for the 1600 * biggest sense key (hardware 1601 * error), 52 bytes for the 1602 * text of the largest sense 1603 * qualifier valid for a CDROM, 1604 * (0x72, 0x03 or 0x04, 1605 * 0x03), and one byte for the 1606 * null terminating character. 1607 * To allow for longer strings, 1608 * the announce buffer is 120 1609 * bytes. 1610 */ 1611 struct cd_params *cdp; 1612 1613 cdp = &softc->params; 1614 1615 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1616 1617 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1618 cdp->blksize = scsi_4btoul (rdcap->length); 1619 1620 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1621 1622 snprintf(announce_buf, sizeof(announce_buf), 1623 "cd present [%lu x %lu byte records]", 1624 cdp->disksize, (u_long)cdp->blksize); 1625 1626 } else { 1627 int error; 1628 /* 1629 * Retry any UNIT ATTENTION type errors. They 1630 * are expected at boot. 1631 */ 1632 error = cderror(done_ccb, 0, SF_RETRY_UA | 1633 SF_NO_PRINT | SF_RETRY_SELTO); 1634 if (error == ERESTART) { 1635 /* 1636 * A retry was scheuled, so 1637 * just return. 1638 */ 1639 return; 1640 } else if (error != 0) { 1641 1642 struct scsi_sense_data *sense; 1643 int asc, ascq; 1644 int sense_key, error_code; 1645 int have_sense; 1646 cam_status status; 1647 struct ccb_getdev cgd; 1648 1649 /* Don't wedge this device's queue */ 1650 cam_release_devq(done_ccb->ccb_h.path, 1651 /*relsim_flags*/0, 1652 /*reduction*/0, 1653 /*timeout*/0, 1654 /*getcount_only*/0); 1655 1656 status = done_ccb->ccb_h.status; 1657 1658 xpt_setup_ccb(&cgd.ccb_h, 1659 done_ccb->ccb_h.path, 1660 /* priority */ 1); 1661 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1662 xpt_action((union ccb *)&cgd); 1663 1664 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1665 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1666 || ((status & CAM_AUTOSNS_VALID) == 0)) 1667 have_sense = FALSE; 1668 else 1669 have_sense = TRUE; 1670 1671 if (have_sense) { 1672 sense = &csio->sense_data; 1673 scsi_extract_sense(sense, &error_code, 1674 &sense_key, 1675 &asc, &ascq); 1676 } 1677 /* 1678 * Attach to anything that claims to be a 1679 * CDROM or WORM device, as long as it 1680 * doesn't return a "Logical unit not 1681 * supported" (0x25) error. 1682 */ 1683 if ((have_sense) && (asc != 0x25) 1684 && (error_code == SSD_CURRENT_ERROR)) 1685 snprintf(announce_buf, 1686 sizeof(announce_buf), 1687 "Attempt to query device " 1688 "size failed: %s, %s", 1689 scsi_sense_key_text[sense_key], 1690 scsi_sense_desc(asc,ascq, 1691 &cgd.inq_data)); 1692 else if (cgd.pd_type == T_CDROM) { 1693 /* 1694 * We only print out an error for 1695 * CDROM type devices. For WORM 1696 * devices, we don't print out an 1697 * error since a few WORM devices 1698 * don't support CDROM commands. 1699 * If we have sense information, go 1700 * ahead and print it out. 1701 * Otherwise, just say that we 1702 * couldn't attach. 1703 */ 1704 1705 /* 1706 * Just print out the error, not 1707 * the full probe message, when we 1708 * don't attach. 1709 */ 1710 if (have_sense) 1711 scsi_sense_print( 1712 &done_ccb->csio); 1713 else { 1714 xpt_print_path(periph->path); 1715 printf("got CAM status %#x\n", 1716 done_ccb->ccb_h.status); 1717 } 1718 xpt_print_path(periph->path); 1719 printf("fatal error, failed" 1720 " to attach to device\n"); 1721 1722 /* 1723 * Invalidate this peripheral. 1724 */ 1725 cam_periph_invalidate(periph); 1726 1727 announce_buf[0] = '\0'; 1728 } else { 1729 1730 /* 1731 * Invalidate this peripheral. 1732 */ 1733 cam_periph_invalidate(periph); 1734 announce_buf[0] = '\0'; 1735 } 1736 } 1737 } 1738 free(rdcap, M_TEMP); 1739 if (announce_buf[0] != '\0') { 1740 xpt_announce_periph(periph, announce_buf); 1741 if (softc->flags & CD_FLAG_CHANGER) 1742 cdchangerschedule(softc); 1743 } 1744 softc->state = CD_STATE_NORMAL; 1745 /* 1746 * Since our peripheral may be invalidated by an error 1747 * above or an external event, we must release our CCB 1748 * before releasing the probe lock on the peripheral. 1749 * The peripheral will only go away once the last lock 1750 * is removed, and we need it around for the CCB release 1751 * operation. 1752 */ 1753 xpt_release_ccb(done_ccb); 1754 cam_periph_unlock(periph); 1755 return; 1756 } 1757 case CD_CCB_WAITING: 1758 { 1759 /* Caller will release the CCB */ 1760 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1761 ("trying to wakeup ccbwait\n")); 1762 1763 wakeup(&done_ccb->ccb_h.cbfcnp); 1764 return; 1765 } 1766 default: 1767 break; 1768 } 1769 xpt_release_ccb(done_ccb); 1770 } 1771 1772 static int 1773 cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1774 { 1775 1776 struct cam_periph *periph; 1777 struct cd_softc *softc; 1778 int error, unit; 1779 1780 unit = dkunit(dev); 1781 1782 periph = cam_extend_get(cdperiphs, unit); 1783 if (periph == NULL) 1784 return(ENXIO); 1785 1786 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1787 1788 softc = (struct cd_softc *)periph->softc; 1789 1790 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1791 ("trying to do ioctl %#lx\n", cmd)); 1792 1793 error = cam_periph_lock(periph, PRIBIO | PCATCH); 1794 1795 if (error != 0) 1796 return(error); 1797 1798 switch (cmd) { 1799 1800 case CDIOCPLAYTRACKS: 1801 { 1802 struct ioc_play_track *args 1803 = (struct ioc_play_track *) addr; 1804 struct cd_mode_data *data; 1805 1806 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1807 M_WAITOK); 1808 1809 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1810 ("trying to do CDIOCPLAYTRACKS\n")); 1811 1812 error = cdgetmode(periph, data, AUDIO_PAGE); 1813 if (error) { 1814 free(data, M_TEMP); 1815 break; 1816 } 1817 data->page.audio.flags &= ~CD_PA_SOTC; 1818 data->page.audio.flags |= CD_PA_IMMED; 1819 error = cdsetmode(periph, data); 1820 free(data, M_TEMP); 1821 if (error) 1822 break; 1823 if (softc->quirks & CD_Q_BCD_TRACKS) { 1824 args->start_track = bin2bcd(args->start_track); 1825 args->end_track = bin2bcd(args->end_track); 1826 } 1827 error = cdplaytracks(periph, 1828 args->start_track, 1829 args->start_index, 1830 args->end_track, 1831 args->end_index); 1832 } 1833 break; 1834 case CDIOCPLAYMSF: 1835 { 1836 struct ioc_play_msf *args 1837 = (struct ioc_play_msf *) addr; 1838 struct cd_mode_data *data; 1839 1840 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1841 M_WAITOK); 1842 1843 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1844 ("trying to do CDIOCPLAYMSF\n")); 1845 1846 error = cdgetmode(periph, data, AUDIO_PAGE); 1847 if (error) { 1848 free(data, M_TEMP); 1849 break; 1850 } 1851 data->page.audio.flags &= ~CD_PA_SOTC; 1852 data->page.audio.flags |= CD_PA_IMMED; 1853 error = cdsetmode(periph, data); 1854 free(data, M_TEMP); 1855 if (error) 1856 break; 1857 error = cdplaymsf(periph, 1858 args->start_m, 1859 args->start_s, 1860 args->start_f, 1861 args->end_m, 1862 args->end_s, 1863 args->end_f); 1864 } 1865 break; 1866 case CDIOCPLAYBLOCKS: 1867 { 1868 struct ioc_play_blocks *args 1869 = (struct ioc_play_blocks *) addr; 1870 struct cd_mode_data *data; 1871 1872 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1873 ("trying to do CDIOCPLAYBLOCKS\n")); 1874 1875 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1876 M_WAITOK); 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 error = cdplay(periph, args->blk, args->len); 1890 } 1891 break; 1892 case CDIOCREADSUBCHANNEL: 1893 { 1894 struct ioc_read_subchannel *args 1895 = (struct ioc_read_subchannel *) addr; 1896 struct cd_sub_channel_info *data; 1897 u_int32_t len = args->data_len; 1898 1899 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1900 ("trying to do CDIOCREADSUBCHANNEL\n")); 1901 1902 data = malloc(sizeof(struct cd_sub_channel_info), 1903 M_TEMP, M_WAITOK); 1904 1905 if ((len > sizeof(struct cd_sub_channel_info)) || 1906 (len < sizeof(struct cd_sub_channel_header))) { 1907 printf( 1908 "scsi_cd: cdioctl: " 1909 "cdioreadsubchannel: error, len=%d\n", 1910 len); 1911 error = EINVAL; 1912 free(data, M_TEMP); 1913 break; 1914 } 1915 1916 if (softc->quirks & CD_Q_BCD_TRACKS) 1917 args->track = bin2bcd(args->track); 1918 1919 error = cdreadsubchannel(periph, args->address_format, 1920 args->data_format, args->track, data, len); 1921 1922 if (error) { 1923 free(data, M_TEMP); 1924 break; 1925 } 1926 if (softc->quirks & CD_Q_BCD_TRACKS) 1927 data->what.track_info.track_number = 1928 bcd2bin(data->what.track_info.track_number); 1929 len = min(len, ((data->header.data_len[0] << 8) + 1930 data->header.data_len[1] + 1931 sizeof(struct cd_sub_channel_header))); 1932 if (copyout(data, args->data, len) != 0) { 1933 error = EFAULT; 1934 } 1935 free(data, M_TEMP); 1936 } 1937 break; 1938 1939 case CDIOREADTOCHEADER: 1940 { 1941 struct ioc_toc_header *th; 1942 1943 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1944 ("trying to do CDIOREADTOCHEADER\n")); 1945 1946 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 1947 M_WAITOK); 1948 error = cdreadtoc(periph, 0, 0, 1949 (struct cd_toc_entry *)th, 1950 sizeof (*th)); 1951 if (error) { 1952 free(th, M_TEMP); 1953 break; 1954 } 1955 if (softc->quirks & CD_Q_BCD_TRACKS) { 1956 /* we are going to have to convert the BCD 1957 * encoding on the cd to what is expected 1958 */ 1959 th->starting_track = 1960 bcd2bin(th->starting_track); 1961 th->ending_track = bcd2bin(th->ending_track); 1962 } 1963 NTOHS(th->len); 1964 bcopy(th, addr, sizeof(*th)); 1965 free(th, M_TEMP); 1966 } 1967 break; 1968 case CDIOREADTOCENTRYS: 1969 { 1970 typedef struct { 1971 struct ioc_toc_header header; 1972 struct cd_toc_entry entries[100]; 1973 } data_t; 1974 typedef struct { 1975 struct ioc_toc_header header; 1976 struct cd_toc_entry entry; 1977 } lead_t; 1978 1979 data_t *data; 1980 lead_t *lead; 1981 struct ioc_read_toc_entry *te = 1982 (struct ioc_read_toc_entry *) addr; 1983 struct ioc_toc_header *th; 1984 u_int32_t len, readlen, idx, num; 1985 u_int32_t starting_track = te->starting_track; 1986 1987 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1988 ("trying to do CDIOREADTOCENTRYS\n")); 1989 1990 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 1991 lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK); 1992 1993 if (te->data_len < sizeof(struct cd_toc_entry) 1994 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 1995 || (te->address_format != CD_MSF_FORMAT 1996 && te->address_format != CD_LBA_FORMAT)) { 1997 error = EINVAL; 1998 printf("scsi_cd: error in readtocentries, " 1999 "returning EINVAL\n"); 2000 free(data, M_TEMP); 2001 free(lead, M_TEMP); 2002 break; 2003 } 2004 2005 th = &data->header; 2006 error = cdreadtoc(periph, 0, 0, 2007 (struct cd_toc_entry *)th, 2008 sizeof (*th)); 2009 if (error) { 2010 free(data, M_TEMP); 2011 free(lead, M_TEMP); 2012 break; 2013 } 2014 2015 if (softc->quirks & CD_Q_BCD_TRACKS) { 2016 /* we are going to have to convert the BCD 2017 * encoding on the cd to what is expected 2018 */ 2019 th->starting_track = 2020 bcd2bin(th->starting_track); 2021 th->ending_track = bcd2bin(th->ending_track); 2022 } 2023 2024 if (starting_track == 0) 2025 starting_track = th->starting_track; 2026 else if (starting_track == LEADOUT) 2027 starting_track = th->ending_track + 1; 2028 else if (starting_track < th->starting_track || 2029 starting_track > th->ending_track + 1) { 2030 printf("scsi_cd: error in readtocentries, " 2031 "returning EINVAL\n"); 2032 free(data, M_TEMP); 2033 free(lead, M_TEMP); 2034 error = EINVAL; 2035 break; 2036 } 2037 2038 /* calculate reading length without leadout entry */ 2039 readlen = (th->ending_track - starting_track + 1) * 2040 sizeof(struct cd_toc_entry); 2041 2042 /* and with leadout entry */ 2043 len = readlen + sizeof(struct cd_toc_entry); 2044 if (te->data_len < len) { 2045 len = te->data_len; 2046 if (readlen > len) 2047 readlen = len; 2048 } 2049 if (len > sizeof(data->entries)) { 2050 printf("scsi_cd: error in readtocentries, " 2051 "returning EINVAL\n"); 2052 error = EINVAL; 2053 free(data, M_TEMP); 2054 free(lead, M_TEMP); 2055 break; 2056 } 2057 num = len / sizeof(struct cd_toc_entry); 2058 2059 if (readlen > 0) { 2060 error = cdreadtoc(periph, te->address_format, 2061 starting_track, 2062 (struct cd_toc_entry *)data, 2063 readlen + sizeof (*th)); 2064 if (error) { 2065 free(data, M_TEMP); 2066 free(lead, M_TEMP); 2067 break; 2068 } 2069 } 2070 2071 /* make leadout entry if needed */ 2072 idx = starting_track + num - 1; 2073 if (softc->quirks & CD_Q_BCD_TRACKS) 2074 th->ending_track = bcd2bin(th->ending_track); 2075 if (idx == th->ending_track + 1) { 2076 error = cdreadtoc(periph, te->address_format, 2077 LEADOUT, 2078 (struct cd_toc_entry *)lead, 2079 sizeof(*lead)); 2080 if (error) { 2081 free(data, M_TEMP); 2082 free(lead, M_TEMP); 2083 break; 2084 } 2085 data->entries[idx - starting_track] = 2086 lead->entry; 2087 } 2088 if (softc->quirks & CD_Q_BCD_TRACKS) { 2089 for (idx = 0; idx < num - 1; idx++) { 2090 data->entries[idx].track = 2091 bcd2bin(data->entries[idx].track); 2092 } 2093 } 2094 2095 error = copyout(data->entries, te->data, len); 2096 free(data, M_TEMP); 2097 free(lead, M_TEMP); 2098 } 2099 break; 2100 case CDIOREADTOCENTRY: 2101 { 2102 /* yeah yeah, this is ugly */ 2103 typedef struct { 2104 struct ioc_toc_header header; 2105 struct cd_toc_entry entry; 2106 } data_t; 2107 2108 data_t *data; 2109 struct ioc_read_toc_single_entry *te = 2110 (struct ioc_read_toc_single_entry *) addr; 2111 struct ioc_toc_header *th; 2112 u_int32_t track; 2113 2114 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2115 ("trying to do CDIOREADTOCENTRY\n")); 2116 2117 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2118 2119 if (te->address_format != CD_MSF_FORMAT 2120 && te->address_format != CD_LBA_FORMAT) { 2121 printf("error in readtocentry, " 2122 " returning EINVAL\n"); 2123 free(data, M_TEMP); 2124 error = EINVAL; 2125 break; 2126 } 2127 2128 th = &data->header; 2129 error = cdreadtoc(periph, 0, 0, 2130 (struct cd_toc_entry *)th, 2131 sizeof (*th)); 2132 if (error) { 2133 free(data, M_TEMP); 2134 break; 2135 } 2136 2137 if (softc->quirks & CD_Q_BCD_TRACKS) { 2138 /* we are going to have to convert the BCD 2139 * encoding on the cd to what is expected 2140 */ 2141 th->starting_track = 2142 bcd2bin(th->starting_track); 2143 th->ending_track = bcd2bin(th->ending_track); 2144 } 2145 track = te->track; 2146 if (track == 0) 2147 track = th->starting_track; 2148 else if (track == LEADOUT) 2149 /* OK */; 2150 else if (track < th->starting_track || 2151 track > th->ending_track + 1) { 2152 printf("error in readtocentry, " 2153 " returning EINVAL\n"); 2154 free(data, M_TEMP); 2155 error = EINVAL; 2156 break; 2157 } 2158 2159 error = cdreadtoc(periph, te->address_format, track, 2160 (struct cd_toc_entry *)data, 2161 sizeof(data_t)); 2162 if (error) { 2163 free(data, M_TEMP); 2164 break; 2165 } 2166 2167 if (softc->quirks & CD_Q_BCD_TRACKS) 2168 data->entry.track = bcd2bin(data->entry.track); 2169 bcopy(&data->entry, &te->entry, 2170 sizeof(struct cd_toc_entry)); 2171 free(data, M_TEMP); 2172 } 2173 break; 2174 case CDIOCSETPATCH: 2175 { 2176 struct ioc_patch *arg = (struct ioc_patch *) addr; 2177 struct cd_mode_data *data; 2178 2179 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2180 ("trying to do CDIOCSETPATCH\n")); 2181 2182 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2183 M_WAITOK); 2184 error = cdgetmode(periph, data, AUDIO_PAGE); 2185 if (error) { 2186 free(data, M_TEMP); 2187 break; 2188 } 2189 data->page.audio.port[LEFT_PORT].channels = 2190 arg->patch[0]; 2191 data->page.audio.port[RIGHT_PORT].channels = 2192 arg->patch[1]; 2193 data->page.audio.port[2].channels = arg->patch[2]; 2194 data->page.audio.port[3].channels = arg->patch[3]; 2195 error = cdsetmode(periph, data); 2196 free(data, M_TEMP); 2197 } 2198 break; 2199 case CDIOCGETVOL: 2200 { 2201 struct ioc_vol *arg = (struct ioc_vol *) addr; 2202 struct cd_mode_data *data; 2203 2204 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2205 ("trying to do CDIOCGETVOL\n")); 2206 2207 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2208 M_WAITOK); 2209 error = cdgetmode(periph, data, AUDIO_PAGE); 2210 if (error) { 2211 free(data, M_TEMP); 2212 break; 2213 } 2214 arg->vol[LEFT_PORT] = 2215 data->page.audio.port[LEFT_PORT].volume; 2216 arg->vol[RIGHT_PORT] = 2217 data->page.audio.port[RIGHT_PORT].volume; 2218 arg->vol[2] = data->page.audio.port[2].volume; 2219 arg->vol[3] = data->page.audio.port[3].volume; 2220 free(data, M_TEMP); 2221 } 2222 break; 2223 case CDIOCSETVOL: 2224 { 2225 struct ioc_vol *arg = (struct ioc_vol *) addr; 2226 struct cd_mode_data *data; 2227 2228 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2229 ("trying to do CDIOCSETVOL\n")); 2230 2231 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2232 M_WAITOK); 2233 error = cdgetmode(periph, data, AUDIO_PAGE); 2234 if (error) { 2235 free(data, M_TEMP); 2236 break; 2237 } 2238 data->page.audio.port[LEFT_PORT].channels = CHANNEL_0; 2239 data->page.audio.port[LEFT_PORT].volume = 2240 arg->vol[LEFT_PORT]; 2241 data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1; 2242 data->page.audio.port[RIGHT_PORT].volume = 2243 arg->vol[RIGHT_PORT]; 2244 data->page.audio.port[2].volume = arg->vol[2]; 2245 data->page.audio.port[3].volume = arg->vol[3]; 2246 error = cdsetmode(periph, data); 2247 free(data, M_TEMP); 2248 } 2249 break; 2250 case CDIOCSETMONO: 2251 { 2252 struct cd_mode_data *data; 2253 2254 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2255 ("trying to do CDIOCSETMONO\n")); 2256 2257 data = malloc(sizeof(struct cd_mode_data), 2258 M_TEMP, M_WAITOK); 2259 error = cdgetmode(periph, data, AUDIO_PAGE); 2260 if (error) { 2261 free(data, M_TEMP); 2262 break; 2263 } 2264 data->page.audio.port[LEFT_PORT].channels = 2265 LEFT_CHANNEL | RIGHT_CHANNEL; 2266 data->page.audio.port[RIGHT_PORT].channels = 2267 LEFT_CHANNEL | RIGHT_CHANNEL; 2268 data->page.audio.port[2].channels = 0; 2269 data->page.audio.port[3].channels = 0; 2270 error = cdsetmode(periph, data); 2271 free(data, M_TEMP); 2272 } 2273 break; 2274 case CDIOCSETSTEREO: 2275 { 2276 struct cd_mode_data *data; 2277 2278 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2279 ("trying to do CDIOCSETSTEREO\n")); 2280 2281 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2282 M_WAITOK); 2283 error = cdgetmode(periph, data, AUDIO_PAGE); 2284 if (error) { 2285 free(data, M_TEMP); 2286 break; 2287 } 2288 data->page.audio.port[LEFT_PORT].channels = 2289 LEFT_CHANNEL; 2290 data->page.audio.port[RIGHT_PORT].channels = 2291 RIGHT_CHANNEL; 2292 data->page.audio.port[2].channels = 0; 2293 data->page.audio.port[3].channels = 0; 2294 error = cdsetmode(periph, data); 2295 free(data, M_TEMP); 2296 } 2297 break; 2298 case CDIOCSETMUTE: 2299 { 2300 struct cd_mode_data *data; 2301 2302 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2303 ("trying to do CDIOCSETMUTE\n")); 2304 2305 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2306 M_WAITOK); 2307 error = cdgetmode(periph, data, AUDIO_PAGE); 2308 if (error) { 2309 free(data, M_TEMP); 2310 break; 2311 } 2312 data->page.audio.port[LEFT_PORT].channels = 0; 2313 data->page.audio.port[RIGHT_PORT].channels = 0; 2314 data->page.audio.port[2].channels = 0; 2315 data->page.audio.port[3].channels = 0; 2316 error = cdsetmode(periph, data); 2317 free(data, M_TEMP); 2318 } 2319 break; 2320 case CDIOCSETLEFT: 2321 { 2322 struct cd_mode_data *data; 2323 2324 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2325 ("trying to do CDIOCSETLEFT\n")); 2326 2327 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2328 M_WAITOK); 2329 error = cdgetmode(periph, data, AUDIO_PAGE); 2330 if (error) { 2331 free(data, M_TEMP); 2332 break; 2333 } 2334 data->page.audio.port[LEFT_PORT].channels = 2335 LEFT_CHANNEL; 2336 data->page.audio.port[RIGHT_PORT].channels = 2337 LEFT_CHANNEL; 2338 data->page.audio.port[2].channels = 0; 2339 data->page.audio.port[3].channels = 0; 2340 error = cdsetmode(periph, data); 2341 free(data, M_TEMP); 2342 } 2343 break; 2344 case CDIOCSETRIGHT: 2345 { 2346 struct cd_mode_data *data; 2347 2348 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2349 ("trying to do CDIOCSETRIGHT\n")); 2350 2351 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2352 M_WAITOK); 2353 error = cdgetmode(periph, data, AUDIO_PAGE); 2354 if (error) { 2355 free(data, M_TEMP); 2356 break; 2357 } 2358 data->page.audio.port[LEFT_PORT].channels = 2359 RIGHT_CHANNEL; 2360 data->page.audio.port[RIGHT_PORT].channels = 2361 RIGHT_CHANNEL; 2362 data->page.audio.port[2].channels = 0; 2363 data->page.audio.port[3].channels = 0; 2364 error = cdsetmode(periph, data); 2365 free(data, M_TEMP); 2366 } 2367 break; 2368 case CDIOCRESUME: 2369 error = cdpause(periph, 1); 2370 break; 2371 case CDIOCPAUSE: 2372 error = cdpause(periph, 0); 2373 break; 2374 case CDIOCSTART: 2375 error = cdstartunit(periph); 2376 break; 2377 case CDIOCSTOP: 2378 error = cdstopunit(periph, 0); 2379 break; 2380 case CDIOCEJECT: 2381 error = cdstopunit(periph, 1); 2382 break; 2383 case CDIOCALLOW: 2384 cdprevent(periph, PR_ALLOW); 2385 break; 2386 case CDIOCPREVENT: 2387 cdprevent(periph, PR_PREVENT); 2388 break; 2389 case CDIOCSETDEBUG: 2390 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2391 error = ENOTTY; 2392 break; 2393 case CDIOCCLRDEBUG: 2394 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2395 error = ENOTTY; 2396 break; 2397 case CDIOCRESET: 2398 /* return (cd_reset(periph)); */ 2399 error = ENOTTY; 2400 break; 2401 default: 2402 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2403 break; 2404 } 2405 2406 cam_periph_unlock(periph); 2407 2408 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2409 2410 return (error); 2411 } 2412 2413 static void 2414 cdprevent(struct cam_periph *periph, int action) 2415 { 2416 union ccb *ccb; 2417 struct cd_softc *softc; 2418 int error; 2419 2420 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2421 2422 softc = (struct cd_softc *)periph->softc; 2423 2424 if (((action == PR_ALLOW) 2425 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2426 || ((action == PR_PREVENT) 2427 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2428 return; 2429 } 2430 2431 ccb = cdgetccb(periph, /* priority */ 1); 2432 2433 scsi_prevent(&ccb->csio, 2434 /*retries*/ 1, 2435 cddone, 2436 MSG_SIMPLE_Q_TAG, 2437 action, 2438 SSD_FULL_SIZE, 2439 /* timeout */60000); 2440 2441 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2442 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO); 2443 2444 xpt_release_ccb(ccb); 2445 2446 if (error == 0) { 2447 if (action == PR_ALLOW) 2448 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2449 else 2450 softc->flags |= CD_FLAG_DISC_LOCKED; 2451 } 2452 } 2453 2454 static int 2455 cdsize(dev_t dev, u_int32_t *size) 2456 { 2457 struct cam_periph *periph; 2458 struct cd_softc *softc; 2459 union ccb *ccb; 2460 struct scsi_read_capacity_data *rcap_buf; 2461 int error; 2462 2463 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2464 2465 if (periph == NULL) 2466 return (ENXIO); 2467 2468 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2469 2470 softc = (struct cd_softc *)periph->softc; 2471 2472 ccb = cdgetccb(periph, /* priority */ 1); 2473 2474 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2475 M_TEMP, M_WAITOK); 2476 2477 scsi_read_capacity(&ccb->csio, 2478 /*retries*/ 1, 2479 cddone, 2480 MSG_SIMPLE_Q_TAG, 2481 rcap_buf, 2482 SSD_FULL_SIZE, 2483 /* timeout */20000); 2484 2485 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2486 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO); 2487 2488 xpt_release_ccb(ccb); 2489 2490 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2491 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2492 2493 free(rcap_buf, M_TEMP); 2494 *size = softc->params.disksize; 2495 2496 return (error); 2497 2498 } 2499 2500 static int 2501 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2502 { 2503 struct cd_softc *softc; 2504 struct cam_periph *periph; 2505 2506 periph = xpt_path_periph(ccb->ccb_h.path); 2507 softc = (struct cd_softc *)periph->softc; 2508 2509 /* 2510 * XXX 2511 * Until we have a better way of doing pack validation, 2512 * don't treat UAs as errors. 2513 */ 2514 sense_flags |= SF_RETRY_UA; 2515 return (cam_periph_error(ccb, cam_flags, sense_flags, 2516 &softc->saved_ccb)); 2517 } 2518 2519 /* 2520 * Read table of contents 2521 */ 2522 static int 2523 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 2524 struct cd_toc_entry *data, u_int32_t len) 2525 { 2526 struct scsi_read_toc *scsi_cmd; 2527 u_int32_t ntoc; 2528 struct ccb_scsiio *csio; 2529 union ccb *ccb; 2530 int error; 2531 2532 ntoc = len; 2533 error = 0; 2534 2535 ccb = cdgetccb(periph, /* priority */ 1); 2536 2537 csio = &ccb->csio; 2538 2539 cam_fill_csio(csio, 2540 /* retries */ 1, 2541 /* cbfcnp */ cddone, 2542 /* flags */ CAM_DIR_IN, 2543 /* tag_action */ MSG_SIMPLE_Q_TAG, 2544 /* data_ptr */ (u_int8_t *)data, 2545 /* dxfer_len */ len, 2546 /* sense_len */ SSD_FULL_SIZE, 2547 sizeof(struct scsi_read_toc), 2548 /* timeout */ 50000); 2549 2550 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 2551 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2552 2553 if (mode == CD_MSF_FORMAT) 2554 scsi_cmd->byte2 |= CD_MSF; 2555 scsi_cmd->from_track = start; 2556 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 2557 scsi_cmd->data_len[0] = (ntoc) >> 8; 2558 scsi_cmd->data_len[1] = (ntoc) & 0xff; 2559 2560 scsi_cmd->op_code = READ_TOC; 2561 2562 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2563 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2564 2565 xpt_release_ccb(ccb); 2566 2567 return(error); 2568 } 2569 2570 static int 2571 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 2572 u_int32_t format, int track, 2573 struct cd_sub_channel_info *data, u_int32_t len) 2574 { 2575 struct scsi_read_subchannel *scsi_cmd; 2576 struct ccb_scsiio *csio; 2577 union ccb *ccb; 2578 int error; 2579 2580 error = 0; 2581 2582 ccb = cdgetccb(periph, /* priority */ 1); 2583 2584 csio = &ccb->csio; 2585 2586 cam_fill_csio(csio, 2587 /* retries */ 1, 2588 /* cbfcnp */ cddone, 2589 /* flags */ CAM_DIR_IN, 2590 /* tag_action */ MSG_SIMPLE_Q_TAG, 2591 /* data_ptr */ (u_int8_t *)data, 2592 /* dxfer_len */ len, 2593 /* sense_len */ SSD_FULL_SIZE, 2594 sizeof(struct scsi_read_subchannel), 2595 /* timeout */ 50000); 2596 2597 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 2598 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2599 2600 scsi_cmd->op_code = READ_SUBCHANNEL; 2601 if (mode == CD_MSF_FORMAT) 2602 scsi_cmd->byte1 |= CD_MSF; 2603 scsi_cmd->byte2 = SRS_SUBQ; 2604 scsi_cmd->subchan_format = format; 2605 scsi_cmd->track = track; 2606 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 2607 scsi_cmd->control = 0; 2608 2609 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2610 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2611 2612 xpt_release_ccb(ccb); 2613 2614 return(error); 2615 } 2616 2617 2618 static int 2619 cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page) 2620 { 2621 struct scsi_mode_sense_6 *scsi_cmd; 2622 struct ccb_scsiio *csio; 2623 union ccb *ccb; 2624 int error; 2625 2626 ccb = cdgetccb(periph, /* priority */ 1); 2627 2628 csio = &ccb->csio; 2629 2630 bzero(data, sizeof(*data)); 2631 cam_fill_csio(csio, 2632 /* retries */ 1, 2633 /* cbfcnp */ cddone, 2634 /* flags */ CAM_DIR_IN, 2635 /* tag_action */ MSG_SIMPLE_Q_TAG, 2636 /* data_ptr */ (u_int8_t *)data, 2637 /* dxfer_len */ sizeof(*data), 2638 /* sense_len */ SSD_FULL_SIZE, 2639 sizeof(struct scsi_mode_sense_6), 2640 /* timeout */ 50000); 2641 2642 scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes; 2643 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2644 2645 scsi_cmd->page = page; 2646 scsi_cmd->length = sizeof(*data) & 0xff; 2647 scsi_cmd->opcode = MODE_SENSE; 2648 2649 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2650 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO); 2651 2652 xpt_release_ccb(ccb); 2653 2654 return(error); 2655 } 2656 2657 static int 2658 cdsetmode(struct cam_periph *periph, struct cd_mode_data *data) 2659 { 2660 struct scsi_mode_select_6 *scsi_cmd; 2661 struct ccb_scsiio *csio; 2662 union ccb *ccb; 2663 int error; 2664 2665 ccb = cdgetccb(periph, /* priority */ 1); 2666 2667 csio = &ccb->csio; 2668 2669 error = 0; 2670 2671 cam_fill_csio(csio, 2672 /* retries */ 1, 2673 /* cbfcnp */ cddone, 2674 /* flags */ CAM_DIR_OUT, 2675 /* tag_action */ MSG_SIMPLE_Q_TAG, 2676 /* data_ptr */ (u_int8_t *)data, 2677 /* dxfer_len */ sizeof(*data), 2678 /* sense_len */ SSD_FULL_SIZE, 2679 sizeof(struct scsi_mode_select_6), 2680 /* timeout */ 50000); 2681 2682 scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes; 2683 2684 bzero(scsi_cmd, sizeof(*scsi_cmd)); 2685 scsi_cmd->opcode = MODE_SELECT; 2686 scsi_cmd->byte2 |= SMS_PF; 2687 scsi_cmd->length = sizeof(*data) & 0xff; 2688 data->header.data_length = 0; 2689 /* 2690 * SONY drives do not allow a mode select with a medium_type 2691 * value that has just been returned by a mode sense; use a 2692 * medium_type of 0 (Default) instead. 2693 */ 2694 data->header.medium_type = 0; 2695 2696 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2697 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2698 2699 xpt_release_ccb(ccb); 2700 2701 return(error); 2702 } 2703 2704 2705 static int 2706 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 2707 { 2708 struct ccb_scsiio *csio; 2709 union ccb *ccb; 2710 int error; 2711 u_int8_t cdb_len; 2712 2713 error = 0; 2714 ccb = cdgetccb(periph, /* priority */ 1); 2715 csio = &ccb->csio; 2716 /* 2717 * Use the smallest possible command to perform the operation. 2718 */ 2719 if ((len & 0xffff0000) == 0) { 2720 /* 2721 * We can fit in a 10 byte cdb. 2722 */ 2723 struct scsi_play_10 *scsi_cmd; 2724 2725 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 2726 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2727 scsi_cmd->op_code = PLAY_10; 2728 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2729 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 2730 cdb_len = sizeof(*scsi_cmd); 2731 } else { 2732 struct scsi_play_12 *scsi_cmd; 2733 2734 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 2735 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2736 scsi_cmd->op_code = PLAY_12; 2737 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2738 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 2739 cdb_len = sizeof(*scsi_cmd); 2740 } 2741 cam_fill_csio(csio, 2742 /*retries*/2, 2743 cddone, 2744 /*flags*/CAM_DIR_NONE, 2745 MSG_SIMPLE_Q_TAG, 2746 /*dataptr*/NULL, 2747 /*datalen*/0, 2748 /*sense_len*/SSD_FULL_SIZE, 2749 cdb_len, 2750 /*timeout*/50 * 1000); 2751 2752 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2753 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2754 2755 xpt_release_ccb(ccb); 2756 2757 return(error); 2758 } 2759 2760 static int 2761 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 2762 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 2763 { 2764 struct scsi_play_msf *scsi_cmd; 2765 struct ccb_scsiio *csio; 2766 union ccb *ccb; 2767 int error; 2768 2769 error = 0; 2770 2771 ccb = cdgetccb(periph, /* priority */ 1); 2772 2773 csio = &ccb->csio; 2774 2775 cam_fill_csio(csio, 2776 /* retries */ 1, 2777 /* cbfcnp */ cddone, 2778 /* flags */ CAM_DIR_NONE, 2779 /* tag_action */ MSG_SIMPLE_Q_TAG, 2780 /* data_ptr */ NULL, 2781 /* dxfer_len */ 0, 2782 /* sense_len */ SSD_FULL_SIZE, 2783 sizeof(struct scsi_play_msf), 2784 /* timeout */ 50000); 2785 2786 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 2787 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2788 2789 scsi_cmd->op_code = PLAY_MSF; 2790 scsi_cmd->start_m = startm; 2791 scsi_cmd->start_s = starts; 2792 scsi_cmd->start_f = startf; 2793 scsi_cmd->end_m = endm; 2794 scsi_cmd->end_s = ends; 2795 scsi_cmd->end_f = endf; 2796 2797 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2798 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2799 2800 xpt_release_ccb(ccb); 2801 2802 return(error); 2803 } 2804 2805 2806 static int 2807 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 2808 u_int32_t etrack, u_int32_t eindex) 2809 { 2810 struct scsi_play_track *scsi_cmd; 2811 struct ccb_scsiio *csio; 2812 union ccb *ccb; 2813 int error; 2814 2815 error = 0; 2816 2817 ccb = cdgetccb(periph, /* priority */ 1); 2818 2819 csio = &ccb->csio; 2820 2821 cam_fill_csio(csio, 2822 /* retries */ 1, 2823 /* cbfcnp */ cddone, 2824 /* flags */ CAM_DIR_NONE, 2825 /* tag_action */ MSG_SIMPLE_Q_TAG, 2826 /* data_ptr */ NULL, 2827 /* dxfer_len */ 0, 2828 /* sense_len */ SSD_FULL_SIZE, 2829 sizeof(struct scsi_play_track), 2830 /* timeout */ 50000); 2831 2832 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 2833 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2834 2835 scsi_cmd->op_code = PLAY_TRACK; 2836 scsi_cmd->start_track = strack; 2837 scsi_cmd->start_index = sindex; 2838 scsi_cmd->end_track = etrack; 2839 scsi_cmd->end_index = eindex; 2840 2841 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2842 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2843 2844 xpt_release_ccb(ccb); 2845 2846 return(error); 2847 } 2848 2849 static int 2850 cdpause(struct cam_periph *periph, u_int32_t go) 2851 { 2852 struct scsi_pause *scsi_cmd; 2853 struct ccb_scsiio *csio; 2854 union ccb *ccb; 2855 int error; 2856 2857 error = 0; 2858 2859 ccb = cdgetccb(periph, /* priority */ 1); 2860 2861 csio = &ccb->csio; 2862 2863 cam_fill_csio(csio, 2864 /* retries */ 1, 2865 /* cbfcnp */ cddone, 2866 /* flags */ CAM_DIR_NONE, 2867 /* tag_action */ MSG_SIMPLE_Q_TAG, 2868 /* data_ptr */ NULL, 2869 /* dxfer_len */ 0, 2870 /* sense_len */ SSD_FULL_SIZE, 2871 sizeof(struct scsi_pause), 2872 /* timeout */ 50000); 2873 2874 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 2875 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2876 2877 scsi_cmd->op_code = PAUSE; 2878 scsi_cmd->resume = go; 2879 2880 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2881 /*sense_flags*/SF_RETRY_UA |SF_RETRY_SELTO); 2882 2883 xpt_release_ccb(ccb); 2884 2885 return(error); 2886 } 2887 2888 static int 2889 cdstartunit(struct cam_periph *periph) 2890 { 2891 union ccb *ccb; 2892 int error; 2893 2894 error = 0; 2895 2896 ccb = cdgetccb(periph, /* priority */ 1); 2897 2898 scsi_start_stop(&ccb->csio, 2899 /* retries */ 1, 2900 /* cbfcnp */ cddone, 2901 /* tag_action */ MSG_SIMPLE_Q_TAG, 2902 /* start */ TRUE, 2903 /* load_eject */ TRUE, 2904 /* immediate */ FALSE, 2905 /* sense_len */ SSD_FULL_SIZE, 2906 /* timeout */ 50000); 2907 2908 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2909 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2910 2911 xpt_release_ccb(ccb); 2912 2913 return(error); 2914 } 2915 2916 static int 2917 cdstopunit(struct cam_periph *periph, u_int32_t eject) 2918 { 2919 union ccb *ccb; 2920 int error; 2921 2922 error = 0; 2923 2924 ccb = cdgetccb(periph, /* priority */ 1); 2925 2926 scsi_start_stop(&ccb->csio, 2927 /* retries */ 1, 2928 /* cbfcnp */ cddone, 2929 /* tag_action */ MSG_SIMPLE_Q_TAG, 2930 /* start */ FALSE, 2931 /* load_eject */ eject, 2932 /* immediate */ FALSE, 2933 /* sense_len */ SSD_FULL_SIZE, 2934 /* timeout */ 50000); 2935 2936 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2937 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO); 2938 2939 xpt_release_ccb(ccb); 2940 2941 return(error); 2942 } 2943