1 /* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $Id$ 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 50 #include <sys/param.h> 51 #include <sys/queue.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/types.h> 55 #include <sys/buf.h> 56 #include <sys/dkbad.h> 57 #include <sys/disklabel.h> 58 #include <sys/diskslice.h> 59 #include <sys/malloc.h> 60 #include <sys/fcntl.h> 61 #include <sys/stat.h> 62 #include <sys/conf.h> 63 #include <sys/buf.h> 64 #include <sys/cdio.h> 65 #include <sys/errno.h> 66 #include <sys/devicestat.h> 67 #include <sys/sysctl.h> 68 69 #include <cam/cam.h> 70 #include <cam/cam_ccb.h> 71 #include <cam/cam_extend.h> 72 #include <cam/cam_periph.h> 73 #include <cam/cam_xpt_periph.h> 74 #include <cam/cam_queue.h> 75 #include <cam/cam_debug.h> 76 77 #include <cam/scsi/scsi_all.h> 78 #include <cam/scsi/scsi_message.h> 79 #include <cam/scsi/scsi_da.h> 80 #include <cam/scsi/scsi_cd.h> 81 #include "opt_cd.h" 82 83 #define ESUCCESS 0 84 85 #define CDUNIT(DEV) ((minor(DEV)&0xF8) >> 3) /* 5 bit unit */ 86 #define CDSETUNIT(DEV, U) makedev(major(DEV), ((U) << 3)) 87 #define PARTITION(z) (minor(z) & 0x07) 88 #define RAW_PART 2 89 #define LEADOUT 0xaa /* leadout toc entry */ 90 91 struct cd_params { 92 u_int32_t blksize; 93 u_long disksize; 94 }; 95 96 typedef enum { 97 CD_Q_NONE = 0x00, 98 CD_Q_NO_TOUCH = 0x01, 99 CD_Q_BCD_TRACKS = 0x02, 100 CD_Q_NO_CHANGER = 0x04, 101 CD_Q_CHANGER = 0x08 102 } cd_quirks; 103 104 typedef enum { 105 CD_FLAG_INVALID = 0x001, 106 CD_FLAG_NEW_DISC = 0x002, 107 CD_FLAG_DISC_LOCKED = 0x004, 108 CD_FLAG_DISC_REMOVABLE = 0x008, 109 CD_FLAG_TAGGED_QUEUING = 0x010, 110 CD_FLAG_OPEN = 0x020, 111 CD_FLAG_CHANGER = 0x040, 112 CD_FLAG_ACTIVE = 0x080, 113 CD_FLAG_SCHED_ON_COMP = 0x100, 114 CD_FLAG_RETRY_UA = 0x200 115 } cd_flags; 116 117 typedef enum { 118 CD_CCB_PROBE = 0x01, 119 CD_CCB_BUFFER_IO = 0x02, 120 CD_CCB_WAITING = 0x03, 121 CD_CCB_TYPE_MASK = 0x0F, 122 CD_CCB_RETRY_UA = 0x10 123 } cd_ccb_state; 124 125 typedef enum { 126 CHANGER_TIMEOUT_SCHED = 0x01, 127 CHANGER_SHORT_TMOUT_SCHED = 0x02, 128 CHANGER_MANUAL_CALL = 0x04, 129 CHANGER_NEED_TIMEOUT = 0x08 130 } cd_changer_flags; 131 132 #define ccb_state ppriv_field0 133 #define ccb_bp ppriv_ptr1 134 135 typedef enum { 136 CD_STATE_PROBE, 137 CD_STATE_NORMAL 138 } cd_state; 139 140 struct cd_softc { 141 cam_pinfo pinfo; 142 cd_state state; 143 cd_flags flags; 144 struct buf_queue_head buf_queue; 145 LIST_HEAD(, ccb_hdr) pending_ccbs; 146 struct cd_params params; 147 struct disklabel disklabel; 148 struct diskslices *cd_slices; 149 union ccb saved_ccb; 150 cd_quirks quirks; 151 struct devstat device_stats; 152 STAILQ_ENTRY(cd_softc) changer_links; 153 struct cdchanger *changer; 154 int bufs_left; 155 struct cam_periph *periph; 156 #ifdef DEVFS 157 void *ra_devfs_token; 158 void *rc_devfs_token; 159 void *a_devfs_token; 160 void *c_devfs_token; 161 void *ctl_devfs_token; 162 #endif 163 }; 164 165 struct cd_quirk_entry { 166 struct scsi_inquiry_pattern inq_pat; 167 cd_quirks quirks; 168 }; 169 170 /* 171 * These quirk entries aren't strictly necessary. Basically, what they do 172 * is tell cdregister() up front that a device is a changer. Otherwise, it 173 * will figure that fact out once it sees a LUN on the device that is 174 * greater than 0. If it is known up front that a device is a changer, all 175 * I/O to the device will go through the changer scheduling routines, as 176 * opposed to the "normal" CD code. 177 */ 178 static struct cd_quirk_entry cd_quirk_table[] = 179 { 180 { 181 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 182 /*quirks*/ CD_Q_CHANGER 183 }, 184 { 185 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM-604X", 186 "*"}, /* quirks */ CD_Q_CHANGER 187 } 188 }; 189 190 #ifndef MIN 191 #define MIN(x,y) ((x<y) ? x : y) 192 #endif 193 194 #define CD_CDEV_MAJOR 15 195 #define CD_BDEV_MAJOR 6 196 197 static d_open_t cdopen; 198 static d_read_t cdread; 199 static d_close_t cdclose; 200 static d_ioctl_t cdioctl; 201 static d_strategy_t cdstrategy; 202 203 static periph_init_t cdinit; 204 static periph_ctor_t cdregister; 205 static periph_dtor_t cdcleanup; 206 static periph_start_t cdstart; 207 static void cdasync(void *callback_arg, u_int32_t code, 208 struct cam_path *path, void *arg); 209 static void cdshorttimeout(void *arg); 210 static void cdschedule(struct cam_periph *periph, int priority); 211 static void cdrunchangerqueue(void *arg); 212 static void cdchangerschedule(struct cd_softc *softc); 213 static int cdrunccb(union ccb *ccb, 214 int (*error_routine)(union ccb *ccb, 215 u_int32_t cam_flags, 216 u_int32_t sense_flags), 217 u_int32_t cam_flags, u_int32_t sense_flags); 218 union ccb *cdgetccb(struct cam_periph *periph, 219 u_int32_t priority); 220 static void cddone(struct cam_periph *periph, 221 union ccb *start_ccb); 222 static int cderror(union ccb *ccb, u_int32_t cam_flags, 223 u_int32_t sense_flags); 224 static void cdprevent(struct cam_periph *periph, int action); 225 static int cdsize(dev_t dev, u_int32_t *size); 226 static int cdgetdisklabel (dev_t dev); 227 static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 228 u_int32_t start, struct cd_toc_entry *data, 229 u_int32_t len); 230 static int cdgetmode(struct cam_periph *periph, 231 struct cd_mode_data *data, u_int32_t page); 232 static int cdsetmode(struct cam_periph *periph, 233 struct cd_mode_data *data); 234 static int cdplay(struct cam_periph *periph, u_int32_t blk, 235 u_int32_t len); 236 static int cdreadsubchannel(struct cam_periph *periph, 237 u_int32_t mode, u_int32_t format, 238 int track, 239 struct cd_sub_channel_info *data, 240 u_int32_t len); 241 static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 242 u_int32_t starts, u_int32_t startf, 243 u_int32_t endm, u_int32_t ends, 244 u_int32_t endf); 245 static int cdplaytracks(struct cam_periph *periph, 246 u_int32_t strack, u_int32_t sindex, 247 u_int32_t etrack, u_int32_t eindex); 248 static int cdpause(struct cam_periph *periph, u_int32_t go); 249 static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 250 static int cdstartunit(struct cam_periph *periph); 251 252 static struct periph_driver cddriver = 253 { 254 cdinit, "cd", 255 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 256 }; 257 258 DATA_SET(periphdriver_set, cddriver); 259 260 /* For 2.2-stable support */ 261 #ifndef D_DISK 262 #define D_DISK 0 263 #endif 264 static struct cdevsw cd_cdevsw = 265 { 266 /*d_open*/ cdopen, 267 /*d_close*/ cdclose, 268 /*d_read*/ cdread, 269 /*d_write*/ nowrite, 270 /*d_ioctl*/ cdioctl, 271 /*d_stop*/ nostop, 272 /*d_reset*/ noreset, 273 /*d_devtotty*/ nodevtotty, 274 /*d_poll*/ seltrue, 275 /*d_mmap*/ nommap, 276 /*d_strategy*/ cdstrategy, 277 /*d_name*/ "cd", 278 /*d_spare*/ NULL, 279 /*d_maj*/ -1, 280 /*d_dump*/ nodump, 281 /*d_psize*/ nopsize, 282 /*d_flags*/ D_DISK, 283 /*d_maxio*/ 0, 284 /*b_maj*/ -1 285 }; 286 287 static struct extend_array *cdperiphs; 288 static int num_changers; 289 290 #ifndef CHANGER_MIN_BUSY_SECONDS 291 #define CHANGER_MIN_BUSY_SECONDS 2 292 #endif 293 #ifndef CHANGER_MAX_BUSY_SECONDS 294 #define CHANGER_MAX_BUSY_SECONDS 10 295 #endif 296 297 static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 298 static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 299 300 /* 301 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl 302 * variables. 303 */ 304 SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 305 SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 306 SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 307 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 308 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 309 SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 310 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 311 312 struct cdchanger { 313 path_id_t path_id; 314 target_id_t target_id; 315 int num_devices; 316 struct camq devq; 317 struct timeval start_time; 318 struct cd_softc *cur_device; 319 struct callout_handle short_handle; 320 struct callout_handle long_handle; 321 cd_changer_flags flags; 322 STAILQ_ENTRY(cdchanger) changer_links; 323 STAILQ_HEAD(chdevlist, cd_softc) chluns; 324 }; 325 326 STAILQ_HEAD(changerlist, cdchanger) changerq; 327 328 void 329 cdinit(void) 330 { 331 cam_status status; 332 struct cam_path *path; 333 334 /* 335 * Create our extend array for storing the devices we attach to. 336 */ 337 cdperiphs = cam_extend_new(); 338 if (cdperiphs == NULL) { 339 printf("cd: Failed to alloc extend array!\n"); 340 return; 341 } 342 343 /* 344 * Install a global async callback. This callback will 345 * receive async callbacks like "new device found". 346 */ 347 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 348 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 349 350 if (status == CAM_REQ_CMP) { 351 struct ccb_setasync csa; 352 353 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 354 csa.ccb_h.func_code = XPT_SASYNC_CB; 355 csa.event_enable = AC_FOUND_DEVICE; 356 csa.callback = cdasync; 357 csa.callback_arg = NULL; 358 xpt_action((union ccb *)&csa); 359 status = csa.ccb_h.status; 360 xpt_free_path(path); 361 } 362 363 if (status != CAM_REQ_CMP) { 364 printf("cd: Failed to attach master async callback " 365 "due to status 0x%x!\n", status); 366 } else { 367 /* If we were successfull, register our devsw */ 368 cdevsw_add_generic(CD_BDEV_MAJOR, CD_CDEV_MAJOR, &cd_cdevsw); 369 } 370 } 371 372 static void 373 cdcleanup(struct cam_periph *periph) 374 { 375 struct cd_softc *softc; 376 377 softc = (struct cd_softc *)periph->softc; 378 379 xpt_print_path(periph->path); 380 printf("removing device entry\n"); 381 /* 382 * In the queued, non-active case, the device in question 383 * has already been removed from the changer run queue. Since this 384 * device is active, we need to de-activate it, and schedule 385 * another device to run. (if there is another one to run) 386 */ 387 if ((softc->flags & CD_FLAG_CHANGER) 388 && (softc->flags & CD_FLAG_ACTIVE)) { 389 390 /* 391 * The purpose of the short timeout is soley to determine 392 * whether the current device has finished or not. Well, 393 * since we're removing the active device, we know that it 394 * is finished. So, get rid of the short timeout. 395 * Otherwise, if we're in the time period before the short 396 * timeout fires, and there are no other devices in the 397 * queue to run, there won't be any other device put in the 398 * active slot. i.e., when we call cdrunchangerqueue() 399 * below, it won't do anything. Then, when the short 400 * timeout fires, it'll look at the "current device", which 401 * we are free below, and possibly panic the kernel on a 402 * bogus pointer reference. 403 * 404 * The long timeout doesn't really matter, since we 405 * decrement the qfrozen_cnt to indicate that there is 406 * nothing in the active slot now. Therefore, there won't 407 * be any bogus pointer references there. 408 */ 409 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 410 untimeout(cdshorttimeout, softc->changer, 411 softc->changer->short_handle); 412 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 413 } 414 softc->changer->devq.qfrozen_cnt--; 415 softc->changer->flags |= CHANGER_MANUAL_CALL; 416 cdrunchangerqueue(softc->changer); 417 } 418 419 /* 420 * If we're removing the last device on the changer, go ahead and 421 * remove the changer device structure. 422 */ 423 if ((softc->flags & CD_FLAG_CHANGER) 424 && (--softc->changer->num_devices == 0)) { 425 426 /* 427 * Theoretically, there shouldn't be any timeouts left, but 428 * I'm not completely sure that that will be the case. So, 429 * it won't hurt to check and see if there are any left. 430 */ 431 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 432 untimeout(cdrunchangerqueue, softc->changer, 433 softc->changer->long_handle); 434 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 435 } 436 437 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 438 untimeout(cdshorttimeout, softc->changer, 439 softc->changer->short_handle); 440 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 441 } 442 443 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 444 changer_links); 445 xpt_print_path(periph->path); 446 printf("removing changer entry\n"); 447 free(softc->changer, M_DEVBUF); 448 num_changers--; 449 } 450 cam_extend_release(cdperiphs, periph->unit_number); 451 free(periph->softc, M_DEVBUF); 452 } 453 454 static void 455 cdasync(void *callback_arg, u_int32_t code, 456 struct cam_path *path, void *arg) 457 { 458 struct cam_periph *periph; 459 460 periph = (struct cam_periph *)callback_arg; 461 switch (code) { 462 case AC_FOUND_DEVICE: 463 { 464 struct ccb_getdev *cgd; 465 cam_status status; 466 467 cgd = (struct ccb_getdev *)arg; 468 469 if ((cgd->pd_type != T_CDROM) && (cgd->pd_type != T_WORM)) 470 break; 471 472 /* 473 * Allocate a peripheral instance for 474 * this device and start the probe 475 * process. 476 */ 477 status = cam_periph_alloc(cdregister, cdcleanup, cdstart, 478 "cd", CAM_PERIPH_BIO, cgd->ccb_h.path, 479 cdasync, AC_FOUND_DEVICE, cgd); 480 481 if (status != CAM_REQ_CMP 482 && status != CAM_REQ_INPROG) 483 printf("cdasync: Unable to attach new device " 484 "due to status 0x%x\n", status); 485 486 break; 487 } 488 case AC_LOST_DEVICE: 489 { 490 int s; 491 struct cd_softc *softc; 492 struct buf *q_bp; 493 struct ccb_setasync csa; 494 495 softc = (struct cd_softc *)periph->softc; 496 497 /* 498 * Insure that no other async callbacks that 499 * might affect this peripheral can come through. 500 */ 501 s = splcam(); 502 503 /* 504 * De-register any async callbacks. 505 */ 506 xpt_setup_ccb(&csa.ccb_h, periph->path, 507 /* priority */ 5); 508 csa.ccb_h.func_code = XPT_SASYNC_CB; 509 csa.event_enable = 0; 510 csa.callback = cdasync; 511 csa.callback_arg = periph; 512 xpt_action((union ccb *)&csa); 513 514 softc->flags |= CD_FLAG_INVALID; 515 516 /* 517 * Return all queued I/O with ENXIO. 518 * XXX Handle any transactions queued to the card 519 * with XPT_ABORT_CCB. 520 */ 521 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 522 bufq_remove(&softc->buf_queue, q_bp); 523 q_bp->b_resid = q_bp->b_bcount; 524 q_bp->b_error = ENXIO; 525 q_bp->b_flags |= B_ERROR; 526 biodone(q_bp); 527 } 528 529 /* 530 * If this device is part of a changer, and it was scheduled 531 * to run, remove it from the run queue since we just nuked 532 * all of its scheduled I/O. 533 */ 534 if ((softc->flags & CD_FLAG_CHANGER) 535 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 536 camq_remove(&softc->changer->devq, softc->pinfo.index); 537 538 devstat_remove_entry(&softc->device_stats); 539 540 xpt_print_path(periph->path); 541 printf("lost device\n"); 542 543 splx(s); 544 545 cam_periph_invalidate(periph); 546 break; 547 } 548 case AC_SENT_BDR: 549 case AC_BUS_RESET: 550 { 551 struct cd_softc *softc; 552 struct ccb_hdr *ccbh; 553 int s; 554 555 softc = (struct cd_softc *)periph->softc; 556 s = splsoftcam(); 557 /* 558 * Don't fail on the expected unit attention 559 * that will occur. 560 */ 561 softc->flags |= CD_FLAG_RETRY_UA; 562 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 563 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 564 ccbh->ccb_state |= CD_CCB_RETRY_UA; 565 splx(s); 566 break; 567 } 568 case AC_TRANSFER_NEG: 569 case AC_SCSI_AEN: 570 case AC_UNSOL_RESEL: 571 default: 572 break; 573 } 574 } 575 576 static cam_status 577 cdregister(struct cam_periph *periph, void *arg) 578 { 579 int s; 580 struct cd_softc *softc; 581 struct ccb_setasync csa; 582 struct ccb_getdev *cgd; 583 caddr_t match; 584 585 cgd = (struct ccb_getdev *)arg; 586 if (periph == NULL) { 587 printf("cdregister: periph was NULL!!\n"); 588 return(CAM_REQ_CMP_ERR); 589 } 590 if (cgd == NULL) { 591 printf("cdregister: no getdev CCB, can't register device\n"); 592 return(CAM_REQ_CMP_ERR); 593 } 594 595 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 596 597 if (softc == NULL) { 598 printf("cdregister: Unable to probe new device. " 599 "Unable to allocate softc\n"); 600 return(CAM_REQ_CMP_ERR); 601 } 602 603 bzero(softc, sizeof(*softc)); 604 LIST_INIT(&softc->pending_ccbs); 605 softc->state = CD_STATE_PROBE; 606 bufq_init(&softc->buf_queue); 607 if (SID_IS_REMOVABLE(&cgd->inq_data)) 608 softc->flags |= CD_FLAG_DISC_REMOVABLE; 609 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 610 softc->flags |= CD_FLAG_TAGGED_QUEUING; 611 612 periph->softc = softc; 613 softc->periph = periph; 614 615 cam_extend_set(cdperiphs, periph->unit_number, periph); 616 617 /* 618 * See if this device has any quirks. 619 */ 620 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 621 (caddr_t)cd_quirk_table, 622 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 623 sizeof(*cd_quirk_table), scsi_inquiry_match); 624 625 if (match != NULL) 626 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 627 else 628 softc->quirks = CD_Q_NONE; 629 630 /* 631 * We need to register the statistics structure for this device, 632 * but we don't have the blocksize yet for it. So, we register 633 * the structure and indicate that we don't have the blocksize 634 * yet. Unlike other SCSI peripheral drivers, we explicitly set 635 * the device type here to be CDROM, rather than just ORing in 636 * cgd->pd_type. This is because this driver can attach to either 637 * CDROM or WORM devices, and we want this peripheral driver to 638 * show up in the devstat list as a CD peripheral driver, not a 639 * WORM peripheral driver. WORM drives will also have the WORM 640 * driver attached to them. 641 */ 642 devstat_add_entry(&softc->device_stats, "cd", 643 periph->unit_number, 0, 644 DEVSTAT_BS_UNAVAILABLE, 645 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI); 646 647 /* 648 * Add an async callback so that we get 649 * notified if this device goes away. 650 */ 651 xpt_setup_ccb(&csa.ccb_h, periph->path, 652 /* priority */ 5); 653 csa.ccb_h.func_code = XPT_SASYNC_CB; 654 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 655 csa.callback = cdasync; 656 csa.callback_arg = periph; 657 xpt_action((union ccb *)&csa); 658 659 /* 660 * If the target lun is greater than 0, we most likely have a CD 661 * changer device. Check the quirk entries as well, though, just 662 * in case someone has a CD tower with one lun per drive or 663 * something like that. Also, if we know up front that a 664 * particular device is a changer, we can mark it as such starting 665 * with lun 0, instead of lun 1. It shouldn't be necessary to have 666 * a quirk entry to define something as a changer, however. 667 */ 668 if (((cgd->ccb_h.target_lun > 0) 669 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 670 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 671 struct cdchanger *nchanger; 672 struct cam_periph *nperiph; 673 struct cam_path *path; 674 cam_status status; 675 int found; 676 677 /* Set the changer flag in the current device's softc */ 678 softc->flags |= CD_FLAG_CHANGER; 679 680 if (num_changers == 0) 681 STAILQ_INIT(&changerq); 682 683 /* 684 * Now, look around for an existing changer device with the 685 * same path and target ID as the current device. 686 */ 687 for (found = 0, 688 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 689 nchanger != NULL; 690 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 691 if ((nchanger->path_id == cgd->ccb_h.path_id) 692 && (nchanger->target_id == cgd->ccb_h.target_id)) { 693 found = 1; 694 break; 695 } 696 } 697 698 /* 699 * If we found a matching entry, just add this device to 700 * the list of devices on this changer. 701 */ 702 if (found == 1) { 703 struct chdevlist *chlunhead; 704 705 chlunhead = &nchanger->chluns; 706 707 /* 708 * XXX KDM look at consolidating this code with the 709 * code below in a separate function. 710 */ 711 712 /* 713 * Create a path with lun id 0, and see if we can 714 * find a matching device 715 */ 716 status = xpt_create_path(&path, /*periph*/ periph, 717 cgd->ccb_h.path_id, 718 cgd->ccb_h.target_id, 0); 719 720 if ((status == CAM_REQ_CMP) 721 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 722 struct cd_softc *nsoftc; 723 724 nsoftc = (struct cd_softc *)nperiph->softc; 725 726 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 727 nsoftc->flags |= CD_FLAG_CHANGER; 728 nchanger->num_devices++; 729 if (camq_resize(&nchanger->devq, 730 nchanger->num_devices)!=CAM_REQ_CMP){ 731 printf("cdregister: " 732 "camq_resize " 733 "failed, changer " 734 "support may " 735 "be messed up\n"); 736 } 737 nsoftc->changer = nchanger; 738 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 739 740 STAILQ_INSERT_TAIL(&nchanger->chluns, 741 nsoftc,changer_links); 742 } 743 } else if (status == CAM_REQ_CMP) 744 xpt_free_path(path); 745 else { 746 printf("cdregister: unable to allocate path\n" 747 "cdregister: changer support may be " 748 "broken\n"); 749 } 750 751 nchanger->num_devices++; 752 753 softc->changer = nchanger; 754 softc->pinfo.index = CAM_UNQUEUED_INDEX; 755 756 if (camq_resize(&nchanger->devq, 757 nchanger->num_devices) != CAM_REQ_CMP) { 758 printf("cdregister: camq_resize " 759 "failed, changer support may " 760 "be messed up\n"); 761 } 762 763 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 764 } 765 /* 766 * In this case, we don't already have an entry for this 767 * particular changer, so we need to create one, add it to 768 * the queue, and queue this device on the list for this 769 * changer. Before we queue this device, however, we need 770 * to search for lun id 0 on this target, and add it to the 771 * queue first, if it exists. (and if it hasn't already 772 * been marked as part of the changer.) 773 */ 774 else { 775 nchanger = malloc(sizeof(struct cdchanger), 776 M_DEVBUF, M_NOWAIT); 777 778 if (nchanger == NULL) { 779 softc->flags &= ~CD_FLAG_CHANGER; 780 printf("cdregister: unable to malloc " 781 "changer structure\ncdregister: " 782 "changer support disabled\n"); 783 784 /* 785 * Yes, gotos can be gross but in this case 786 * I think it's justified.. 787 */ 788 goto cdregisterexit; 789 } 790 791 /* zero the structure */ 792 bzero(nchanger, sizeof(struct cdchanger)); 793 794 if (camq_init(&nchanger->devq, 1) != 0) { 795 softc->flags &= ~CD_FLAG_CHANGER; 796 printf("cdregister: changer support " 797 "disabled\n"); 798 goto cdregisterexit; 799 } 800 801 num_changers++; 802 803 nchanger->path_id = cgd->ccb_h.path_id; 804 nchanger->target_id = cgd->ccb_h.target_id; 805 806 /* this is superfluous, but it makes things clearer */ 807 nchanger->num_devices = 0; 808 809 STAILQ_INIT(&nchanger->chluns); 810 811 STAILQ_INSERT_TAIL(&changerq, nchanger, 812 changer_links); 813 814 /* 815 * Create a path with lun id 0, and see if we can 816 * find a matching device 817 */ 818 status = xpt_create_path(&path, /*periph*/ periph, 819 cgd->ccb_h.path_id, 820 cgd->ccb_h.target_id, 0); 821 822 /* 823 * If we were able to allocate the path, and if we 824 * find a matching device and it isn't already 825 * marked as part of a changer, then we add it to 826 * the current changer. 827 */ 828 if ((status == CAM_REQ_CMP) 829 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 830 && ((((struct cd_softc *)periph->softc)->flags & 831 CD_FLAG_CHANGER) == 0)) { 832 struct cd_softc *nsoftc; 833 834 nsoftc = (struct cd_softc *)nperiph->softc; 835 836 nsoftc->flags |= CD_FLAG_CHANGER; 837 nchanger->num_devices++; 838 if (camq_resize(&nchanger->devq, 839 nchanger->num_devices) != CAM_REQ_CMP) { 840 printf("cdregister: camq_resize " 841 "failed, changer support may " 842 "be messed up\n"); 843 } 844 nsoftc->changer = nchanger; 845 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 846 847 STAILQ_INSERT_TAIL(&nchanger->chluns, 848 nsoftc, changer_links); 849 } else if (status == CAM_REQ_CMP) 850 xpt_free_path(path); 851 else { 852 printf("cdregister: unable to allocate path\n" 853 "cdregister: changer support may be " 854 "broken\n"); 855 } 856 857 softc->changer = nchanger; 858 softc->pinfo.index = CAM_UNQUEUED_INDEX; 859 nchanger->num_devices++; 860 if (camq_resize(&nchanger->devq, 861 nchanger->num_devices) != CAM_REQ_CMP) { 862 printf("cdregister: camq_resize " 863 "failed, changer support may " 864 "be messed up\n"); 865 } 866 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 867 changer_links); 868 } 869 } 870 871 cdregisterexit: 872 873 /* Lock this peripheral until we are setup */ 874 /* Can't block */ 875 cam_periph_lock(periph, PRIBIO); 876 877 if ((softc->flags & CD_FLAG_CHANGER) == 0) 878 xpt_schedule(periph, /*priority*/5); 879 else 880 cdschedule(periph, /*priority*/ 5); 881 882 return(CAM_REQ_CMP); 883 } 884 885 static int 886 cdopen(dev_t dev, int flags, int fmt, struct proc *p) 887 { 888 struct cam_periph *periph; 889 struct cd_softc *softc; 890 u_int32_t size; 891 int unit, error; 892 893 error = 0; /* default to no error */ 894 895 unit = dkunit(dev); 896 periph = cam_extend_get(cdperiphs, unit); 897 898 if (periph == NULL) 899 return (ENXIO); 900 901 softc = (struct cd_softc *)periph->softc; 902 903 if (softc->flags & CD_FLAG_INVALID) 904 return(ENXIO); 905 906 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) 907 return (error); 908 909 if ((softc->flags & CD_FLAG_OPEN) == 0) { 910 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 911 return(ENXIO); 912 softc->flags |= CD_FLAG_OPEN; 913 } 914 915 /* lock the cd */ 916 cdprevent(periph, PR_PREVENT); 917 918 /* find out the size */ 919 if ((error = cdsize(dev, &size)) != 0) { 920 cdprevent(periph, PR_ALLOW); 921 softc->flags &= ~CD_FLAG_OPEN; 922 cam_periph_unlock(periph); 923 cam_periph_release(periph); 924 return(error); 925 } 926 927 /* get a disklabel */ 928 if ((error = cdgetdisklabel(dev)) != 0) { 929 printf("error getting disklabel\n"); 930 cdprevent(periph, PR_ALLOW); 931 softc->flags &= ~CD_FLAG_OPEN; 932 cam_periph_unlock(periph); 933 cam_periph_release(periph); 934 return(error); 935 } 936 937 if (error == 0) { 938 /* Initialize slice tables. */ 939 error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE, 940 &softc->cd_slices, &softc->disklabel, 941 cdstrategy, (ds_setgeom_t *)NULL, &cd_cdevsw); 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 */ 948 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 949 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 950 softc->device_stats.block_size = softc->params.blksize; 951 } else { 952 if ((dsisopen(softc->cd_slices) == 0) 953 && ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)) 954 cdprevent(periph, PR_ALLOW); 955 } 956 957 cam_periph_unlock(periph); 958 959 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 960 961 return (error); 962 } 963 964 static int 965 cdclose(dev_t dev, int flag, int fmt, struct proc *p) 966 { 967 struct cam_periph *periph; 968 struct cd_softc *softc; 969 int unit, error; 970 971 unit = dkunit(dev); 972 periph = cam_extend_get(cdperiphs, unit); 973 if (periph == NULL) 974 return (ENXIO); 975 976 softc = (struct cd_softc *)periph->softc; 977 978 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 979 return (error); 980 981 dsclose(dev, fmt, softc->cd_slices); 982 983 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 984 cdprevent(periph, PR_ALLOW); 985 986 /* 987 * Since we're closing this CD, mark the blocksize as unavailable. 988 * It will be marked as available whence the CD is opened again. 989 */ 990 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 991 992 softc->flags &= ~CD_FLAG_OPEN; 993 cam_periph_unlock(periph); 994 cam_periph_release(periph); 995 996 return (0); 997 } 998 999 static int 1000 cdread(dev_t dev, struct uio *uio, int ioflag) 1001 { 1002 return(physio(cdstrategy, NULL, dev, 1, minphys, uio)); 1003 } 1004 1005 static void 1006 cdshorttimeout(void *arg) 1007 { 1008 struct cdchanger *changer; 1009 int s; 1010 1011 s = splsoftcam(); 1012 1013 changer = (struct cdchanger *)arg; 1014 1015 /* Always clear the short timeout flag, since that's what we're in */ 1016 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1017 1018 /* 1019 * Check to see if there is any more pending or outstanding I/O for 1020 * this device. If not, move it out of the active slot. 1021 */ 1022 if ((bufq_first(&changer->cur_device->buf_queue) == NULL) 1023 && (changer->cur_device->device_stats.busy_count == 0)) { 1024 changer->flags |= CHANGER_MANUAL_CALL; 1025 cdrunchangerqueue(changer); 1026 } 1027 1028 splx(s); 1029 } 1030 1031 /* 1032 * This is a wrapper for xpt_schedule. It only applies to changers. 1033 */ 1034 static void 1035 cdschedule(struct cam_periph *periph, int priority) 1036 { 1037 struct cd_softc *softc; 1038 int s; 1039 1040 s = splsoftcam(); 1041 1042 softc = (struct cd_softc *)periph->softc; 1043 1044 /* 1045 * If this device isn't currently queued, and if it isn't 1046 * the active device, then we queue this device and run the 1047 * changer queue if there is no timeout scheduled to do it. 1048 * If this device is the active device, just schedule it 1049 * to run again. If this device is queued, there should be 1050 * a timeout in place already that will make sure it runs. 1051 */ 1052 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1053 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1054 /* 1055 * We don't do anything with the priority here. 1056 * This is strictly a fifo queue. 1057 */ 1058 softc->pinfo.priority = 1; 1059 if (softc->changer->devq.generation++ == 0) 1060 camq_regen(&softc->changer->devq); 1061 softc->pinfo.generation = 1062 softc->changer->devq.generation; 1063 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1064 1065 /* 1066 * Since we just put a device in the changer queue, 1067 * check and see if there is a timeout scheduled for 1068 * this changer. If so, let the timeout handle 1069 * switching this device into the active slot. If 1070 * not, manually call the timeout routine to 1071 * bootstrap things. 1072 */ 1073 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1074 &&((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)){ 1075 softc->changer->flags |= CHANGER_MANUAL_CALL; 1076 cdrunchangerqueue(softc->changer); 1077 } 1078 } else if ((softc->flags & CD_FLAG_ACTIVE) 1079 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1080 xpt_schedule(periph, priority); 1081 1082 splx(s); 1083 1084 } 1085 1086 static void 1087 cdrunchangerqueue(void *arg) 1088 { 1089 struct timeval cur_time, busy_time; 1090 struct cd_softc *softc; 1091 struct cdchanger *changer; 1092 int called_from_timeout; 1093 int s; 1094 1095 s = splsoftcam(); 1096 1097 changer = (struct cdchanger *)arg; 1098 1099 /* 1100 * If we have NOT been called from cdstrategy() or cddone(), and 1101 * instead from a timeout routine, go ahead and clear the 1102 * timeout flag. 1103 */ 1104 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1105 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1106 called_from_timeout = 1; 1107 } else 1108 called_from_timeout = 0; 1109 1110 /* Always clear the manual call flag */ 1111 changer->flags &= ~CHANGER_MANUAL_CALL; 1112 1113 /* nothing to do if the queue is empty */ 1114 if (changer->devq.entries <= 0) { 1115 splx(s); 1116 return; 1117 } 1118 1119 /* 1120 * If the changer queue is frozen, that means we have an active 1121 * device. 1122 */ 1123 if (changer->devq.qfrozen_cnt > 0) { 1124 1125 if (changer->cur_device->device_stats.busy_count > 0) { 1126 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1127 changer->cur_device->bufs_left = 1128 changer->cur_device->device_stats.busy_count; 1129 if (called_from_timeout) { 1130 changer->long_handle = 1131 timeout(cdrunchangerqueue, changer, 1132 changer_max_busy_seconds * hz); 1133 changer->flags |= CHANGER_TIMEOUT_SCHED; 1134 } 1135 splx(s); 1136 return; 1137 } 1138 1139 /* 1140 * We always need to reset the frozen count and clear the 1141 * active flag. 1142 */ 1143 changer->devq.qfrozen_cnt--; 1144 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1145 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1146 1147 /* 1148 * Check to see whether the current device has any I/O left 1149 * to do. If so, requeue it at the end of the queue. If 1150 * not, there is no need to requeue it. 1151 */ 1152 if (bufq_first(&changer->cur_device->buf_queue) != NULL) { 1153 1154 if (changer->devq.generation++ == 0) 1155 camq_regen(&changer->devq); 1156 1157 changer->cur_device->pinfo.generation = 1158 changer->devq.generation; 1159 camq_insert(&changer->devq, 1160 (cam_pinfo *)changer->cur_device); 1161 } 1162 } 1163 1164 softc = (struct cd_softc *)camq_remove(&changer->devq, 0); 1165 1166 changer->cur_device = softc; 1167 1168 changer->devq.qfrozen_cnt++; 1169 softc->flags |= CD_FLAG_ACTIVE; 1170 1171 /* Just in case this device is waiting */ 1172 wakeup(&softc->changer); 1173 xpt_schedule(softc->periph, /*priority*/ 1); 1174 1175 /* 1176 * Get rid of any pending timeouts, and set a flag to schedule new 1177 * ones so this device gets its full time quantum. 1178 */ 1179 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1180 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1181 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1182 } 1183 1184 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1185 untimeout(cdshorttimeout, changer, changer->short_handle); 1186 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1187 } 1188 1189 /* 1190 * We need to schedule timeouts, but we only do this after the 1191 * first transaction has completed. This eliminates the changer 1192 * switch time. 1193 */ 1194 changer->flags |= CHANGER_NEED_TIMEOUT; 1195 1196 splx(s); 1197 } 1198 1199 static void 1200 cdchangerschedule(struct cd_softc *softc) 1201 { 1202 struct cdchanger *changer; 1203 int s; 1204 1205 s = splsoftcam(); 1206 1207 changer = softc->changer; 1208 1209 /* 1210 * If this is a changer, and this is the current device, 1211 * and this device has at least the minimum time quantum to 1212 * run, see if we can switch it out. 1213 */ 1214 if ((softc->flags & CD_FLAG_ACTIVE) 1215 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1216 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1217 /* 1218 * We try three things here. The first is that we 1219 * check to see whether the schedule on completion 1220 * flag is set. If it is, we decrement the number 1221 * of buffers left, and if it's zero, we reschedule. 1222 * Next, we check to see whether the pending buffer 1223 * queue is empty and whether there are no 1224 * outstanding transactions. If so, we reschedule. 1225 * Next, we see if the pending buffer queue is empty. 1226 * If it is, we set the number of buffers left to 1227 * the current active buffer count and set the 1228 * schedule on complete flag. 1229 */ 1230 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1231 if (--softc->bufs_left == 0) { 1232 softc->changer->flags |= 1233 CHANGER_MANUAL_CALL; 1234 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1235 cdrunchangerqueue(softc->changer); 1236 } 1237 } else if ((bufq_first(&softc->buf_queue) == NULL) 1238 && (softc->device_stats.busy_count == 0)) { 1239 softc->changer->flags |= CHANGER_MANUAL_CALL; 1240 cdrunchangerqueue(softc->changer); 1241 } 1242 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1243 && (softc->flags & CD_FLAG_ACTIVE)) { 1244 1245 /* 1246 * Now that the first transaction to this 1247 * particular device has completed, we can go ahead 1248 * and schedule our timeouts. 1249 */ 1250 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1251 changer->long_handle = 1252 timeout(cdrunchangerqueue, changer, 1253 changer_max_busy_seconds * hz); 1254 changer->flags |= CHANGER_TIMEOUT_SCHED; 1255 } else 1256 printf("cdchangerschedule: already have a long" 1257 " timeout!\n"); 1258 1259 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1260 changer->short_handle = 1261 timeout(cdshorttimeout, changer, 1262 changer_min_busy_seconds * hz); 1263 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1264 } else 1265 printf("cdchangerschedule: already have a short " 1266 "timeout!\n"); 1267 1268 /* 1269 * We just scheduled timeouts, no need to schedule 1270 * more. 1271 */ 1272 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1273 1274 } 1275 splx(s); 1276 } 1277 1278 static int 1279 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1280 u_int32_t cam_flags, 1281 u_int32_t sense_flags), 1282 u_int32_t cam_flags, u_int32_t sense_flags) 1283 { 1284 struct cd_softc *softc; 1285 struct cam_periph *periph; 1286 int error; 1287 1288 periph = xpt_path_periph(ccb->ccb_h.path); 1289 softc = (struct cd_softc *)periph->softc; 1290 1291 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1292 &softc->device_stats); 1293 1294 if (softc->flags & CD_FLAG_CHANGER) 1295 cdchangerschedule(softc); 1296 1297 return(error); 1298 } 1299 1300 union ccb * 1301 cdgetccb(struct cam_periph *periph, u_int32_t priority) 1302 { 1303 struct cd_softc *softc; 1304 int s; 1305 1306 softc = (struct cd_softc *)periph->softc; 1307 1308 if (softc->flags & CD_FLAG_CHANGER) { 1309 1310 s = splsoftcam(); 1311 1312 /* 1313 * This should work the first time this device is woken up, 1314 * but just in case it doesn't, we use a while loop. 1315 */ 1316 while ((((volatile cd_flags)softc->flags) & CD_FLAG_ACTIVE)==0){ 1317 /* 1318 * If this changer isn't already queued, queue it up. 1319 */ 1320 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1321 softc->pinfo.priority = 1; 1322 if (softc->changer->devq.generation++ == 0) 1323 camq_regen(&softc->changer->devq); 1324 softc->pinfo.generation = 1325 softc->changer->devq.generation; 1326 camq_insert(&softc->changer->devq, 1327 (cam_pinfo *)softc); 1328 } 1329 if (((((volatile cd_changer_flags)softc->changer->flags) 1330 & CHANGER_TIMEOUT_SCHED)==0) 1331 &&((((volatile cd_changer_flags)softc->changer->flags) 1332 & CHANGER_NEED_TIMEOUT)==0)){ 1333 softc->changer->flags |= CHANGER_MANUAL_CALL; 1334 cdrunchangerqueue(softc->changer); 1335 } else 1336 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1337 } 1338 splx(s); 1339 } 1340 return(cam_periph_getccb(periph, priority)); 1341 } 1342 1343 1344 /* 1345 * Actually translate the requested transfer into one the physical driver 1346 * can understand. The transfer is described by a buf and will include 1347 * only one physical transfer. 1348 */ 1349 static void 1350 cdstrategy(struct buf *bp) 1351 { 1352 struct cam_periph *periph; 1353 struct cd_softc *softc; 1354 u_int unit, part; 1355 int s; 1356 1357 unit = dkunit(bp->b_dev); 1358 part = dkpart(bp->b_dev); 1359 periph = cam_extend_get(cdperiphs, unit); 1360 if (periph == NULL) { 1361 bp->b_error = ENXIO; 1362 goto bad; 1363 } 1364 1365 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1366 1367 softc = (struct cd_softc *)periph->softc; 1368 1369 /* 1370 * Do bounds checking, adjust transfer, and set b_pbklno. 1371 */ 1372 if (dscheck(bp, softc->cd_slices) <= 0) 1373 goto done; 1374 1375 /* 1376 * Mask interrupts so that the pack cannot be invalidated until 1377 * after we are in the queue. Otherwise, we might not properly 1378 * clean up one of the buffers. 1379 */ 1380 s = splbio(); 1381 1382 /* 1383 * If the device has been made invalid, error out 1384 */ 1385 if ((softc->flags & CD_FLAG_INVALID)) { 1386 splx(s); 1387 bp->b_error = ENXIO; 1388 goto bad; 1389 } 1390 1391 /* 1392 * Place it in the queue of disk activities for this disk 1393 */ 1394 bufqdisksort(&softc->buf_queue, bp); 1395 1396 splx(s); 1397 1398 /* 1399 * Schedule ourselves for performing the work. We do things 1400 * differently for changers. 1401 */ 1402 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1403 xpt_schedule(periph, /* XXX priority */1); 1404 else 1405 cdschedule(periph, /* priority */ 1); 1406 1407 return; 1408 bad: 1409 bp->b_flags |= B_ERROR; 1410 done: 1411 /* 1412 * Correctly set the buf to indicate a completed xfer 1413 */ 1414 bp->b_resid = bp->b_bcount; 1415 biodone(bp); 1416 return; 1417 } 1418 1419 static void 1420 cdstart(struct cam_periph *periph, union ccb *start_ccb) 1421 { 1422 struct cd_softc *softc; 1423 struct buf *bp; 1424 struct ccb_scsiio *csio; 1425 struct scsi_read_capacity_data *rcap; 1426 struct partition *p; 1427 u_int32_t blkno, nblk; 1428 int s; 1429 1430 softc = (struct cd_softc *)periph->softc; 1431 1432 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1433 1434 switch (softc->state) { 1435 case CD_STATE_NORMAL: 1436 { 1437 int oldspl; 1438 1439 s = splbio(); 1440 bp = bufq_first(&softc->buf_queue); 1441 if (periph->immediate_priority <= periph->pinfo.priority) { 1442 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1443 1444 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1445 periph_links.sle); 1446 periph->immediate_priority = CAM_PRIORITY_NONE; 1447 splx(s); 1448 wakeup(&periph->ccb_list); 1449 } else if (bp == NULL) { 1450 splx(s); 1451 xpt_release_ccb(start_ccb); 1452 } else { 1453 bufq_remove(&softc->buf_queue, bp); 1454 1455 devstat_start_transaction(&softc->device_stats); 1456 1457 scsi_read_write(&start_ccb->csio, 1458 /*retries*/4, 1459 /* cbfcnp */ cddone, 1460 (bp->b_flags & B_ORDERED) != 0 ? 1461 MSG_ORDERED_Q_TAG : 1462 MSG_SIMPLE_Q_TAG, 1463 /* read */bp->b_flags & B_READ, 1464 /* byte2 */ 0, 1465 /* minimum_cmd_size */ 10, 1466 /* lba */ bp->b_pblkno, 1467 bp->b_bcount / softc->params.blksize, 1468 /* data_ptr */ bp->b_data, 1469 /* dxfer_len */ bp->b_bcount, 1470 /* sense_len */ SSD_FULL_SIZE, 1471 /* timeout */ 30000); 1472 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1473 1474 1475 /* 1476 * Block out any asyncronous callbacks 1477 * while we touch the pending ccb list. 1478 */ 1479 oldspl = splcam(); 1480 LIST_INSERT_HEAD(&softc->pending_ccbs, 1481 &start_ccb->ccb_h, periph_links.le); 1482 splx(oldspl); 1483 1484 /* We expect a unit attention from this device */ 1485 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1486 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1487 softc->flags &= ~CD_FLAG_RETRY_UA; 1488 } 1489 1490 start_ccb->ccb_h.ccb_bp = bp; 1491 bp = bufq_first(&softc->buf_queue); 1492 splx(s); 1493 1494 xpt_action(start_ccb); 1495 } 1496 if (bp != NULL) { 1497 /* Have more work to do, so ensure we stay scheduled */ 1498 xpt_schedule(periph, /* XXX priority */1); 1499 } 1500 break; 1501 } 1502 case CD_STATE_PROBE: 1503 { 1504 1505 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1506 M_TEMP, 1507 M_NOWAIT); 1508 if (rcap == NULL) { 1509 xpt_print_path(periph->path); 1510 printf("cdstart: Couldn't malloc read_capacity data\n"); 1511 /* cd_free_periph??? */ 1512 break; 1513 } 1514 csio = &start_ccb->csio; 1515 scsi_read_capacity(csio, 1516 /*retries*/1, 1517 cddone, 1518 MSG_SIMPLE_Q_TAG, 1519 rcap, 1520 SSD_FULL_SIZE, 1521 /*timeout*/20000); 1522 start_ccb->ccb_h.ccb_bp = NULL; 1523 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1524 xpt_action(start_ccb); 1525 break; 1526 } 1527 } 1528 } 1529 1530 static void 1531 cddone(struct cam_periph *periph, union ccb *done_ccb) 1532 { 1533 struct cd_softc *softc; 1534 struct ccb_scsiio *csio; 1535 1536 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1537 1538 softc = (struct cd_softc *)periph->softc; 1539 csio = &done_ccb->csio; 1540 1541 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1542 case CD_CCB_BUFFER_IO: 1543 { 1544 struct buf *bp; 1545 int error; 1546 int oldspl; 1547 1548 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1549 error = 0; 1550 1551 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1552 int sf; 1553 1554 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1555 sf = SF_RETRY_UA; 1556 else 1557 sf = 0; 1558 1559 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) { 1560 /* 1561 * A retry was scheuled, so 1562 * just return. 1563 */ 1564 return; 1565 } 1566 } 1567 1568 if (error != 0) { 1569 int s; 1570 struct buf *q_bp; 1571 1572 xpt_print_path(periph->path); 1573 printf("cddone: got error %#x back\n", error); 1574 s = splbio(); 1575 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { 1576 bufq_remove(&softc->buf_queue, q_bp); 1577 q_bp->b_resid = q_bp->b_bcount; 1578 q_bp->b_error = EIO; 1579 q_bp->b_flags |= B_ERROR; 1580 biodone(q_bp); 1581 } 1582 splx(s); 1583 bp->b_resid = bp->b_bcount; 1584 bp->b_error = error; 1585 bp->b_flags |= B_ERROR; 1586 cam_release_devq(done_ccb->ccb_h.path, 1587 /*relsim_flags*/0, 1588 /*reduction*/0, 1589 /*timeout*/0, 1590 /*getcount_only*/0); 1591 1592 } else { 1593 bp->b_resid = csio->resid; 1594 bp->b_error = 0; 1595 if (bp->b_resid != 0) { 1596 /* Short transfer ??? */ 1597 bp->b_flags |= B_ERROR; 1598 } 1599 } 1600 1601 /* 1602 * Block out any asyncronous callbacks 1603 * while we touch the pending ccb list. 1604 */ 1605 oldspl = splcam(); 1606 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1607 splx(oldspl); 1608 1609 devstat_end_transaction(&softc->device_stats, 1610 bp->b_bcount - bp->b_resid, 1611 done_ccb->csio.tag_action & 0xf, 1612 (bp->b_flags & B_READ) ? DEVSTAT_READ 1613 : DEVSTAT_WRITE); 1614 1615 if (softc->flags & CD_FLAG_CHANGER) 1616 cdchangerschedule(softc); 1617 1618 biodone(bp); 1619 break; 1620 } 1621 case CD_CCB_PROBE: 1622 { 1623 struct scsi_read_capacity_data *rdcap; 1624 char announce_buf[120]; /* 1625 * Currently (9/30/97) the 1626 * longest possible announce 1627 * buffer is 108 bytes, for the 1628 * first error case below. 1629 * That is 39 bytes for the 1630 * basic string, 16 bytes for the 1631 * biggest sense key (hardware 1632 * error), 52 bytes for the 1633 * text of the largest sense 1634 * qualifier valid for a CDROM, 1635 * (0x72, 0x03 or 0x04, 1636 * 0x03), and one byte for the 1637 * null terminating character. 1638 * To allow for longer strings, 1639 * the announce buffer is 120 1640 * bytes. 1641 */ 1642 struct cd_params *cdp; 1643 1644 cdp = &softc->params; 1645 1646 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1647 1648 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1649 cdp->blksize = scsi_4btoul (rdcap->length); 1650 1651 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1652 1653 sprintf(announce_buf, 1654 "cd present [%ld x %d byte records]", 1655 cdp->disksize, cdp->blksize); 1656 1657 } else { 1658 int error; 1659 /* 1660 * Retry any UNIT ATTENTION type errors. They 1661 * are expected at boot. 1662 */ 1663 error = cderror(done_ccb, 0, SF_RETRY_UA|SF_NO_PRINT); 1664 if (error == ERESTART) { 1665 /* 1666 * A retry was scheuled, so 1667 * just return. 1668 */ 1669 return; 1670 } else if (error != 0) { 1671 1672 struct scsi_sense_data *sense; 1673 int asc, ascq; 1674 int sense_key, error_code; 1675 int have_sense; 1676 cam_status status; 1677 struct ccb_getdev cgd; 1678 1679 /* Don't wedge this device's queue */ 1680 cam_release_devq(done_ccb->ccb_h.path, 1681 /*relsim_flags*/0, 1682 /*reduction*/0, 1683 /*timeout*/0, 1684 /*getcount_only*/0); 1685 1686 status = done_ccb->ccb_h.status; 1687 1688 xpt_setup_ccb(&cgd.ccb_h, 1689 done_ccb->ccb_h.path, 1690 /* priority */ 1); 1691 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1692 xpt_action((union ccb *)&cgd); 1693 1694 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1695 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1696 || ((status & CAM_AUTOSNS_VALID) == 0)) 1697 have_sense = FALSE; 1698 else 1699 have_sense = TRUE; 1700 1701 if (have_sense) { 1702 sense = &csio->sense_data; 1703 scsi_extract_sense(sense, &error_code, 1704 &sense_key, 1705 &asc, &ascq); 1706 } 1707 /* 1708 * With CDROM devices, we expect 0x3a 1709 * (Medium not present) errors, since not 1710 * everyone leaves a CD in the drive. If 1711 * the error is anything else, though, we 1712 * shouldn't attach. 1713 */ 1714 if ((have_sense) && (asc == 0x3a) 1715 && (error_code == SSD_CURRENT_ERROR)) 1716 sprintf(announce_buf, 1717 "Attempt to query device " 1718 "size failed: %s, %s", 1719 scsi_sense_key_text[sense_key], 1720 scsi_sense_desc(asc,ascq, 1721 &cgd.inq_data)); 1722 else if (cgd.pd_type == T_CDROM) { 1723 /* 1724 * We only print out an error for 1725 * CDROM type devices. For WORM 1726 * devices, we don't print out an 1727 * error since a few WORM devices 1728 * don't support CDROM commands. 1729 * If we have sense information, go 1730 * ahead and print it out. 1731 * Otherwise, just say that we 1732 * couldn't attach. 1733 */ 1734 if ((have_sense) && (asc || ascq) 1735 && (error_code == SSD_CURRENT_ERROR)) 1736 sprintf(announce_buf, 1737 "fatal error: %s, %s " 1738 "-- failed to attach " 1739 "to device", 1740 scsi_sense_key_text[sense_key], 1741 scsi_sense_desc(asc,ascq, 1742 &cgd.inq_data)); 1743 else 1744 sprintf(announce_buf, 1745 "fatal error, failed" 1746 " to attach to device"); 1747 1748 /* 1749 * Just print out the error, not 1750 * the full probe message, when we 1751 * don't attach. 1752 */ 1753 printf("%s%d: %s\n", 1754 periph->periph_name, 1755 periph->unit_number, 1756 announce_buf); 1757 scsi_sense_print(&done_ccb->csio); 1758 1759 /* 1760 * Free up resources. 1761 */ 1762 cam_extend_release(cdperiphs, 1763 periph->unit_number); 1764 cam_periph_invalidate(periph); 1765 periph = NULL; 1766 } else { 1767 /* 1768 * Free up resources. 1769 */ 1770 cam_extend_release(cdperiphs, 1771 periph->unit_number); 1772 cam_periph_invalidate(periph); 1773 periph = NULL; 1774 } 1775 } 1776 } 1777 free(rdcap, M_TEMP); 1778 if (periph != NULL) { 1779 xpt_announce_periph(periph, announce_buf); 1780 softc->state = CD_STATE_NORMAL; 1781 cam_periph_unlock(periph); 1782 } 1783 1784 if (softc->flags & CD_FLAG_CHANGER) 1785 cdchangerschedule(softc); 1786 break; 1787 } 1788 case CD_CCB_WAITING: 1789 { 1790 /* Caller will release the CCB */ 1791 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1792 ("trying to wakeup ccbwait\n")); 1793 1794 wakeup(&done_ccb->ccb_h.cbfcnp); 1795 return; 1796 } 1797 } 1798 xpt_release_ccb(done_ccb); 1799 } 1800 1801 static int 1802 cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1803 { 1804 1805 struct cam_periph *periph; 1806 struct cd_softc *softc; 1807 u_int8_t unit, part; 1808 int error; 1809 1810 unit = dkunit(dev); 1811 part = dkpart(dev); 1812 1813 periph = cam_extend_get(cdperiphs, unit); 1814 if (periph == NULL) 1815 return(ENXIO); 1816 1817 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1818 1819 softc = (struct cd_softc *)periph->softc; 1820 1821 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1822 ("trying to do ioctl %#x\n", cmd)); 1823 1824 error = 0; 1825 1826 switch (cmd) { 1827 1828 case CDIOCPLAYTRACKS: 1829 { 1830 struct ioc_play_track *args 1831 = (struct ioc_play_track *) addr; 1832 struct cd_mode_data *data; 1833 1834 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1835 M_WAITOK); 1836 1837 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1838 ("trying to do CDIOCPLAYTRACKS\n")); 1839 1840 error = cdgetmode(periph, data, AUDIO_PAGE); 1841 if (error) { 1842 free(data, M_TEMP); 1843 break; 1844 } 1845 data->page.audio.flags &= ~CD_PA_SOTC; 1846 data->page.audio.flags |= CD_PA_IMMED; 1847 error = cdsetmode(periph, data); 1848 free(data, M_TEMP); 1849 if (error) 1850 break; 1851 if (softc->quirks & CD_Q_BCD_TRACKS) { 1852 args->start_track = bin2bcd(args->start_track); 1853 args->end_track = bin2bcd(args->end_track); 1854 } 1855 error = cdplaytracks(periph, 1856 args->start_track, 1857 args->start_index, 1858 args->end_track, 1859 args->end_index); 1860 } 1861 break; 1862 case CDIOCPLAYMSF: 1863 { 1864 struct ioc_play_msf *args 1865 = (struct ioc_play_msf *) addr; 1866 struct cd_mode_data *data; 1867 1868 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1869 M_WAITOK); 1870 1871 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1872 ("trying to do CDIOCPLAYMSF\n")); 1873 1874 error = cdgetmode(periph, data, AUDIO_PAGE); 1875 if (error) { 1876 free(data, M_TEMP); 1877 break; 1878 } 1879 data->page.audio.flags &= ~CD_PA_SOTC; 1880 data->page.audio.flags |= CD_PA_IMMED; 1881 error = cdsetmode(periph, data); 1882 free(data, M_TEMP); 1883 if (error) 1884 break; 1885 error = cdplaymsf(periph, 1886 args->start_m, 1887 args->start_s, 1888 args->start_f, 1889 args->end_m, 1890 args->end_s, 1891 args->end_f); 1892 } 1893 break; 1894 case CDIOCPLAYBLOCKS: 1895 { 1896 struct ioc_play_blocks *args 1897 = (struct ioc_play_blocks *) addr; 1898 struct cd_mode_data *data; 1899 1900 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1901 ("trying to do CDIOCPLAYBLOCKS\n")); 1902 1903 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1904 M_WAITOK); 1905 1906 error = cdgetmode(periph, data, AUDIO_PAGE); 1907 if (error) { 1908 free(data, M_TEMP); 1909 break; 1910 } 1911 data->page.audio.flags &= ~CD_PA_SOTC; 1912 data->page.audio.flags |= CD_PA_IMMED; 1913 error = cdsetmode(periph, data); 1914 free(data, M_TEMP); 1915 if (error) 1916 break; 1917 error = cdplay(periph, args->blk, args->len); 1918 } 1919 break; 1920 case CDIOCREADSUBCHANNEL: 1921 { 1922 struct ioc_read_subchannel *args 1923 = (struct ioc_read_subchannel *) addr; 1924 struct cd_sub_channel_info *data; 1925 u_int32_t len = args->data_len; 1926 1927 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1928 ("trying to do CDIOCREADSUBCHANNEL\n")); 1929 1930 data = malloc(sizeof(struct cd_sub_channel_info), 1931 M_TEMP, M_WAITOK); 1932 1933 if ((len > sizeof(struct cd_sub_channel_info)) || 1934 (len < sizeof(struct cd_sub_channel_header))) { 1935 printf( 1936 "scsi_cd: cdioctl: " 1937 "cdioreadsubchannel: error, len=%d\n", 1938 len); 1939 error = EINVAL; 1940 free(data, M_TEMP); 1941 break; 1942 } 1943 1944 if (softc->quirks & CD_Q_BCD_TRACKS) 1945 args->track = bin2bcd(args->track); 1946 1947 error = cdreadsubchannel(periph, args->address_format, 1948 args->data_format, args->track, data, len); 1949 1950 if (error) { 1951 free(data, M_TEMP); 1952 break; 1953 } 1954 if (softc->quirks & CD_Q_BCD_TRACKS) 1955 data->what.track_info.track_number = 1956 bcd2bin(data->what.track_info.track_number); 1957 len = min(len, ((data->header.data_len[0] << 8) + 1958 data->header.data_len[1] + 1959 sizeof(struct cd_sub_channel_header))); 1960 if (copyout(data, args->data, len) != 0) { 1961 error = EFAULT; 1962 } 1963 free(data, M_TEMP); 1964 } 1965 break; 1966 1967 case CDIOREADTOCHEADER: 1968 { 1969 struct ioc_toc_header *th; 1970 1971 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1972 ("trying to do CDIOREADTOCHEADER\n")); 1973 1974 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 1975 M_WAITOK); 1976 error = cdreadtoc(periph, 0, 0, 1977 (struct cd_toc_entry *)th, 1978 sizeof (*th)); 1979 if (error) { 1980 free(th, M_TEMP); 1981 break; 1982 } 1983 if (softc->quirks & CD_Q_BCD_TRACKS) { 1984 /* we are going to have to convert the BCD 1985 * encoding on the cd to what is expected 1986 */ 1987 th->starting_track = 1988 bcd2bin(th->starting_track); 1989 th->ending_track = bcd2bin(th->ending_track); 1990 } 1991 NTOHS(th->len); 1992 bcopy(th, addr, sizeof(*th)); 1993 free(th, M_TEMP); 1994 } 1995 break; 1996 case CDIOREADTOCENTRYS: 1997 { 1998 typedef struct { 1999 struct ioc_toc_header header; 2000 struct cd_toc_entry entries[100]; 2001 } data_t; 2002 typedef struct { 2003 struct ioc_toc_header header; 2004 struct cd_toc_entry entry; 2005 } lead_t; 2006 2007 data_t *data; 2008 lead_t *lead; 2009 struct ioc_read_toc_entry *te = 2010 (struct ioc_read_toc_entry *) addr; 2011 struct ioc_toc_header *th; 2012 u_int32_t len, readlen, idx, num; 2013 u_int32_t starting_track = te->starting_track; 2014 2015 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2016 ("trying to do CDIOREADTOCENTRYS\n")); 2017 2018 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2019 lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK); 2020 2021 if (te->data_len < sizeof(struct cd_toc_entry) 2022 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2023 || (te->address_format != CD_MSF_FORMAT 2024 && te->address_format != CD_LBA_FORMAT)) { 2025 error = EINVAL; 2026 printf("scsi_cd: error in readtocentries, " 2027 "returning EINVAL\n"); 2028 free(data, M_TEMP); 2029 free(lead, M_TEMP); 2030 break; 2031 } 2032 2033 th = &data->header; 2034 error = cdreadtoc(periph, 0, 0, 2035 (struct cd_toc_entry *)th, 2036 sizeof (*th)); 2037 if (error) { 2038 free(data, M_TEMP); 2039 free(lead, M_TEMP); 2040 break; 2041 } 2042 2043 if (softc->quirks & CD_Q_BCD_TRACKS) { 2044 /* we are going to have to convert the BCD 2045 * encoding on the cd to what is expected 2046 */ 2047 th->starting_track = 2048 bcd2bin(th->starting_track); 2049 th->ending_track = bcd2bin(th->ending_track); 2050 } 2051 2052 if (starting_track == 0) 2053 starting_track = th->starting_track; 2054 else if (starting_track == LEADOUT) 2055 starting_track = th->ending_track + 1; 2056 else if (starting_track < th->starting_track || 2057 starting_track > th->ending_track + 1) { 2058 printf("scsi_cd: error in readtocentries, " 2059 "returning EINVAL\n"); 2060 free(data, M_TEMP); 2061 free(lead, M_TEMP); 2062 error = EINVAL; 2063 break; 2064 } 2065 2066 /* calculate reading length without leadout entry */ 2067 readlen = (th->ending_track - starting_track + 1) * 2068 sizeof(struct cd_toc_entry); 2069 2070 /* and with leadout entry */ 2071 len = readlen + sizeof(struct cd_toc_entry); 2072 if (te->data_len < len) { 2073 len = te->data_len; 2074 if (readlen > len) 2075 readlen = len; 2076 } 2077 if (len > sizeof(data->entries)) { 2078 printf("scsi_cd: error in readtocentries, " 2079 "returning EINVAL\n"); 2080 error = EINVAL; 2081 free(data, M_TEMP); 2082 free(lead, M_TEMP); 2083 break; 2084 } 2085 num = len / sizeof(struct cd_toc_entry); 2086 2087 if (readlen > 0) { 2088 error = cdreadtoc(periph, te->address_format, 2089 starting_track, 2090 (struct cd_toc_entry *)data, 2091 readlen + sizeof (*th)); 2092 if (error) { 2093 free(data, M_TEMP); 2094 free(lead, M_TEMP); 2095 break; 2096 } 2097 } 2098 2099 /* make leadout entry if needed */ 2100 idx = starting_track + num - 1; 2101 if (softc->quirks & CD_Q_BCD_TRACKS) 2102 th->ending_track = bcd2bin(th->ending_track); 2103 if (idx == th->ending_track + 1) { 2104 error = cdreadtoc(periph, te->address_format, 2105 LEADOUT, 2106 (struct cd_toc_entry *)lead, 2107 sizeof(*lead)); 2108 if (error) { 2109 free(data, M_TEMP); 2110 free(lead, M_TEMP); 2111 break; 2112 } 2113 data->entries[idx - starting_track] = 2114 lead->entry; 2115 } 2116 if (softc->quirks & CD_Q_BCD_TRACKS) { 2117 for (idx = 0; idx < num - 1; idx++) { 2118 data->entries[idx].track = 2119 bcd2bin(data->entries[idx].track); 2120 } 2121 } 2122 2123 error = copyout(data->entries, te->data, len); 2124 free(data, M_TEMP); 2125 free(lead, M_TEMP); 2126 } 2127 break; 2128 case CDIOREADTOCENTRY: 2129 { 2130 /* yeah yeah, this is ugly */ 2131 typedef struct { 2132 struct ioc_toc_header header; 2133 struct cd_toc_entry entry; 2134 } data_t; 2135 2136 data_t *data; 2137 struct ioc_read_toc_single_entry *te = 2138 (struct ioc_read_toc_single_entry *) addr; 2139 struct ioc_toc_header *th; 2140 u_int32_t track; 2141 2142 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2143 ("trying to do CDIOREADTOCENTRY\n")); 2144 2145 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2146 2147 if (te->address_format != CD_MSF_FORMAT 2148 && te->address_format != CD_LBA_FORMAT) { 2149 printf("error in readtocentry, " 2150 " returning EINVAL\n"); 2151 free(data, M_TEMP); 2152 error = EINVAL; 2153 break; 2154 } 2155 2156 th = &data->header; 2157 error = cdreadtoc(periph, 0, 0, 2158 (struct cd_toc_entry *)th, 2159 sizeof (*th)); 2160 if (error) { 2161 free(data, M_TEMP); 2162 break; 2163 } 2164 2165 if (softc->quirks & CD_Q_BCD_TRACKS) { 2166 /* we are going to have to convert the BCD 2167 * encoding on the cd to what is expected 2168 */ 2169 th->starting_track = 2170 bcd2bin(th->starting_track); 2171 th->ending_track = bcd2bin(th->ending_track); 2172 } 2173 track = te->track; 2174 if (track == 0) 2175 track = th->starting_track; 2176 else if (track == LEADOUT) 2177 /* OK */; 2178 else if (track < th->starting_track || 2179 track > th->ending_track + 1) { 2180 printf("error in readtocentry, " 2181 " returning EINVAL\n"); 2182 free(data, M_TEMP); 2183 error = EINVAL; 2184 break; 2185 } 2186 2187 error = cdreadtoc(periph, te->address_format, track, 2188 (struct cd_toc_entry *)data, 2189 sizeof(data_t)); 2190 if (error) { 2191 free(data, M_TEMP); 2192 break; 2193 } 2194 2195 if (softc->quirks & CD_Q_BCD_TRACKS) 2196 data->entry.track = bcd2bin(data->entry.track); 2197 bcopy(&data->entry, &te->entry, 2198 sizeof(struct cd_toc_entry)); 2199 free(data, M_TEMP); 2200 } 2201 break; 2202 case CDIOCSETPATCH: 2203 { 2204 struct ioc_patch *arg = (struct ioc_patch *) addr; 2205 struct cd_mode_data *data; 2206 2207 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2208 ("trying to do CDIOCSETPATCH\n")); 2209 2210 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2211 M_WAITOK); 2212 error = cdgetmode(periph, data, AUDIO_PAGE); 2213 if (error) { 2214 free(data, M_TEMP); 2215 break; 2216 } 2217 data->page.audio.port[LEFT_PORT].channels = 2218 arg->patch[0]; 2219 data->page.audio.port[RIGHT_PORT].channels = 2220 arg->patch[1]; 2221 data->page.audio.port[2].channels = arg->patch[2]; 2222 data->page.audio.port[3].channels = arg->patch[3]; 2223 error = cdsetmode(periph, data); 2224 free(data, M_TEMP); 2225 } 2226 break; 2227 case CDIOCGETVOL: 2228 { 2229 struct ioc_vol *arg = (struct ioc_vol *) addr; 2230 struct cd_mode_data *data; 2231 2232 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2233 ("trying to do CDIOCGETVOL\n")); 2234 2235 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2236 M_WAITOK); 2237 error = cdgetmode(periph, data, AUDIO_PAGE); 2238 if (error) { 2239 free(data, M_TEMP); 2240 break; 2241 } 2242 arg->vol[LEFT_PORT] = 2243 data->page.audio.port[LEFT_PORT].volume; 2244 arg->vol[RIGHT_PORT] = 2245 data->page.audio.port[RIGHT_PORT].volume; 2246 arg->vol[2] = data->page.audio.port[2].volume; 2247 arg->vol[3] = data->page.audio.port[3].volume; 2248 free(data, M_TEMP); 2249 } 2250 break; 2251 case CDIOCSETVOL: 2252 { 2253 struct ioc_vol *arg = (struct ioc_vol *) addr; 2254 struct cd_mode_data *data; 2255 2256 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2257 ("trying to do CDIOCSETVOL\n")); 2258 2259 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2260 M_WAITOK); 2261 error = cdgetmode(periph, data, AUDIO_PAGE); 2262 if (error) { 2263 free(data, M_TEMP); 2264 break; 2265 } 2266 data->page.audio.port[LEFT_PORT].channels = CHANNEL_0; 2267 data->page.audio.port[LEFT_PORT].volume = 2268 arg->vol[LEFT_PORT]; 2269 data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1; 2270 data->page.audio.port[RIGHT_PORT].volume = 2271 arg->vol[RIGHT_PORT]; 2272 data->page.audio.port[2].volume = arg->vol[2]; 2273 data->page.audio.port[3].volume = arg->vol[3]; 2274 error = cdsetmode(periph, data); 2275 free(data, M_TEMP); 2276 } 2277 break; 2278 case CDIOCSETMONO: 2279 { 2280 struct cd_mode_data *data; 2281 2282 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2283 ("trying to do CDIOCSETMONO\n")); 2284 2285 data = malloc(sizeof(struct cd_mode_data), 2286 M_TEMP, M_WAITOK); 2287 error = cdgetmode(periph, data, AUDIO_PAGE); 2288 if (error) { 2289 free(data, M_TEMP); 2290 break; 2291 } 2292 data->page.audio.port[LEFT_PORT].channels = 2293 LEFT_CHANNEL | RIGHT_CHANNEL; 2294 data->page.audio.port[RIGHT_PORT].channels = 2295 LEFT_CHANNEL | RIGHT_CHANNEL; 2296 data->page.audio.port[2].channels = 0; 2297 data->page.audio.port[3].channels = 0; 2298 error = cdsetmode(periph, data); 2299 free(data, M_TEMP); 2300 } 2301 break; 2302 case CDIOCSETSTEREO: 2303 { 2304 struct cd_mode_data *data; 2305 2306 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2307 ("trying to do CDIOCSETSTEREO\n")); 2308 2309 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2310 M_WAITOK); 2311 error = cdgetmode(periph, data, AUDIO_PAGE); 2312 if (error) { 2313 free(data, M_TEMP); 2314 break; 2315 } 2316 data->page.audio.port[LEFT_PORT].channels = 2317 LEFT_CHANNEL; 2318 data->page.audio.port[RIGHT_PORT].channels = 2319 RIGHT_CHANNEL; 2320 data->page.audio.port[2].channels = 0; 2321 data->page.audio.port[3].channels = 0; 2322 error = cdsetmode(periph, data); 2323 free(data, M_TEMP); 2324 } 2325 break; 2326 case CDIOCSETMUTE: 2327 { 2328 struct cd_mode_data *data; 2329 2330 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2331 ("trying to do CDIOCSETMUTE\n")); 2332 2333 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2334 M_WAITOK); 2335 error = cdgetmode(periph, data, AUDIO_PAGE); 2336 if (error) { 2337 free(data, M_TEMP); 2338 break; 2339 } 2340 data->page.audio.port[LEFT_PORT].channels = 0; 2341 data->page.audio.port[RIGHT_PORT].channels = 0; 2342 data->page.audio.port[2].channels = 0; 2343 data->page.audio.port[3].channels = 0; 2344 error = cdsetmode(periph, data); 2345 free(data, M_TEMP); 2346 } 2347 break; 2348 case CDIOCSETLEFT: 2349 { 2350 struct cd_mode_data *data; 2351 2352 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2353 ("trying to do CDIOCSETLEFT\n")); 2354 2355 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2356 M_WAITOK); 2357 error = cdgetmode(periph, data, AUDIO_PAGE); 2358 if (error) { 2359 free(data, M_TEMP); 2360 break; 2361 } 2362 data->page.audio.port[LEFT_PORT].channels = 2363 LEFT_CHANNEL; 2364 data->page.audio.port[RIGHT_PORT].channels = 2365 LEFT_CHANNEL; 2366 data->page.audio.port[2].channels = 0; 2367 data->page.audio.port[3].channels = 0; 2368 error = cdsetmode(periph, data); 2369 free(data, M_TEMP); 2370 } 2371 break; 2372 case CDIOCSETRIGHT: 2373 { 2374 struct cd_mode_data *data; 2375 2376 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2377 ("trying to do CDIOCSETRIGHT\n")); 2378 2379 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2380 M_WAITOK); 2381 error = cdgetmode(periph, data, AUDIO_PAGE); 2382 if (error) { 2383 free(data, M_TEMP); 2384 break; 2385 } 2386 data->page.audio.port[LEFT_PORT].channels = 2387 RIGHT_CHANNEL; 2388 data->page.audio.port[RIGHT_PORT].channels = 2389 RIGHT_CHANNEL; 2390 data->page.audio.port[2].channels = 0; 2391 data->page.audio.port[3].channels = 0; 2392 error = cdsetmode(periph, data); 2393 free(data, M_TEMP); 2394 } 2395 break; 2396 case CDIOCRESUME: 2397 error = cdpause(periph, 1); 2398 break; 2399 case CDIOCPAUSE: 2400 error = cdpause(periph, 0); 2401 break; 2402 case CDIOCSTART: 2403 error = cdstartunit(periph); 2404 break; 2405 case CDIOCSTOP: 2406 error = cdstopunit(periph, 0); 2407 break; 2408 case CDIOCEJECT: 2409 error = cdstopunit(periph, 1); 2410 break; 2411 case CDIOCALLOW: 2412 cdprevent(periph, PR_ALLOW); 2413 break; 2414 case CDIOCPREVENT: 2415 cdprevent(periph, PR_PREVENT); 2416 break; 2417 case CDIOCSETDEBUG: 2418 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2419 error = ENOTTY; 2420 break; 2421 case CDIOCCLRDEBUG: 2422 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2423 error = ENOTTY; 2424 break; 2425 case CDIOCRESET: 2426 /* return (cd_reset(periph)); */ 2427 error = ENOTTY; 2428 break; 2429 default: 2430 if (cmd == DIOCSBAD) { 2431 error = EINVAL; /* XXX */ 2432 break; 2433 } 2434 2435 /* 2436 * Check to see whether we've got a disk-type ioctl. If we 2437 * don't, dsioctl will pass back an error code of ENOIOCTL. 2438 */ 2439 error = dsioctl("cd", dev, cmd, addr, flag, &softc->cd_slices, 2440 cdstrategy, (ds_setgeom_t *)NULL); 2441 2442 if (error != ENOIOCTL) 2443 break; 2444 2445 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2446 break; 2447 } 2448 2449 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2450 2451 return (error); 2452 } 2453 2454 static void 2455 cdprevent(struct cam_periph *periph, int action) 2456 { 2457 union ccb *ccb; 2458 struct cd_softc *softc; 2459 int error; 2460 2461 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2462 2463 softc = (struct cd_softc *)periph->softc; 2464 2465 if (((action == PR_ALLOW) 2466 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2467 || ((action == PR_PREVENT) 2468 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2469 return; 2470 } 2471 2472 ccb = cdgetccb(periph, /* priority */ 1); 2473 2474 scsi_prevent(&ccb->csio, 2475 /*retries*/ 1, 2476 cddone, 2477 MSG_SIMPLE_Q_TAG, 2478 action, 2479 SSD_FULL_SIZE, 2480 /* timeout */60000); 2481 2482 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2483 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2484 2485 xpt_release_ccb(ccb); 2486 2487 if (error == 0) { 2488 if (action == PR_ALLOW) 2489 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2490 else 2491 softc->flags |= CD_FLAG_DISC_LOCKED; 2492 } 2493 } 2494 2495 static int 2496 cdsize(dev_t dev, u_int32_t *size) 2497 { 2498 struct cam_periph *periph; 2499 struct cd_softc *softc; 2500 union ccb *ccb; 2501 struct scsi_read_capacity_data *rcap_buf; 2502 int error; 2503 2504 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2505 2506 if (periph == NULL) 2507 return (ENXIO); 2508 2509 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2510 2511 softc = (struct cd_softc *)periph->softc; 2512 2513 ccb = cdgetccb(periph, /* priority */ 1); 2514 2515 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2516 M_TEMP, M_WAITOK); 2517 2518 scsi_read_capacity(&ccb->csio, 2519 /*retries*/ 1, 2520 cddone, 2521 MSG_SIMPLE_Q_TAG, 2522 rcap_buf, 2523 SSD_FULL_SIZE, 2524 /* timeout */20000); 2525 2526 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2527 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2528 2529 xpt_release_ccb(ccb); 2530 2531 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2532 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2533 2534 free(rcap_buf, M_TEMP); 2535 *size = softc->params.disksize; 2536 2537 return (error); 2538 2539 } 2540 2541 static int 2542 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2543 { 2544 struct cd_softc *softc; 2545 struct cam_periph *periph; 2546 2547 periph = xpt_path_periph(ccb->ccb_h.path); 2548 softc = (struct cd_softc *)periph->softc; 2549 2550 return (cam_periph_error(ccb, cam_flags, sense_flags, 2551 &softc->saved_ccb)); 2552 } 2553 2554 static int 2555 cdgetdisklabel(dev_t dev) 2556 { 2557 struct cam_periph *periph; 2558 struct cd_softc *softc; 2559 2560 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2561 2562 if (periph == NULL) 2563 return (ENXIO); 2564 2565 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdgetdisklabel\n")); 2566 2567 softc = (struct cd_softc *)periph->softc; 2568 2569 bzero(&softc->disklabel, sizeof(struct disklabel)); 2570 2571 /* XXX Use the controller's geometry for this */ 2572 softc->disklabel.d_type = DTYPE_SCSI; 2573 sprintf(softc->disklabel.d_typename, "%s%d", periph->periph_name, 2574 periph->unit_number); 2575 strncpy(softc->disklabel.d_packname, "ficticious", 16); 2576 softc->disklabel.d_secsize = softc->params.blksize; 2577 softc->disklabel.d_nsectors = 100; 2578 softc->disklabel.d_ntracks = 1; 2579 softc->disklabel.d_ncylinders = (softc->params.disksize / 100) + 1; 2580 softc->disklabel.d_secpercyl = 100; 2581 softc->disklabel.d_secperunit = softc->params.disksize; 2582 softc->disklabel.d_rpm = 300; 2583 softc->disklabel.d_interleave = 1; 2584 softc->disklabel.d_flags = D_REMOVABLE; 2585 2586 /* 2587 * Make partition 'a' cover the whole disk. This is a temporary 2588 * compatibility hack. The 'a' partition should not exist, so 2589 * the slice code won't create it. The slice code will make 2590 * partition (RAW_PART + 'a') cover the whole disk and fill in 2591 * some more defaults. 2592 */ 2593 softc->disklabel.d_npartitions = 1; 2594 softc->disklabel.d_partitions[0].p_offset = 0; 2595 softc->disklabel.d_partitions[0].p_size 2596 = softc->params.disksize; 2597 softc->disklabel.d_partitions[0].p_fstype = FS_OTHER; 2598 2599 /* 2600 * Signal to other users and routines that we now have a 2601 * disklabel that represents the media (maybe) 2602 */ 2603 return (0); 2604 2605 } 2606 2607 /* 2608 * Read table of contents 2609 */ 2610 static int 2611 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 2612 struct cd_toc_entry *data, u_int32_t len) 2613 { 2614 struct scsi_read_toc *scsi_cmd; 2615 u_int32_t ntoc; 2616 struct ccb_scsiio *csio; 2617 union ccb *ccb; 2618 int error; 2619 2620 ntoc = len; 2621 error = 0; 2622 2623 ccb = cdgetccb(periph, /* priority */ 1); 2624 2625 csio = &ccb->csio; 2626 2627 cam_fill_csio(csio, 2628 /* retries */ 1, 2629 /* cbfcnp */ cddone, 2630 /* flags */ CAM_DIR_IN, 2631 /* tag_action */ MSG_SIMPLE_Q_TAG, 2632 /* data_ptr */ (u_int8_t *)data, 2633 /* dxfer_len */ len, 2634 /* sense_len */ SSD_FULL_SIZE, 2635 sizeof(struct scsi_read_toc), 2636 /* timeout */ 50000); 2637 2638 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 2639 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2640 2641 if (mode == CD_MSF_FORMAT) 2642 scsi_cmd->byte2 |= CD_MSF; 2643 scsi_cmd->from_track = start; 2644 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 2645 scsi_cmd->data_len[0] = (ntoc) >> 8; 2646 scsi_cmd->data_len[1] = (ntoc) & 0xff; 2647 2648 scsi_cmd->op_code = READ_TOC; 2649 2650 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2651 /*sense_flags*/SF_RETRY_UA); 2652 2653 xpt_release_ccb(ccb); 2654 2655 return(error); 2656 } 2657 2658 static int 2659 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 2660 u_int32_t format, int track, 2661 struct cd_sub_channel_info *data, u_int32_t len) 2662 { 2663 struct scsi_read_subchannel *scsi_cmd; 2664 struct ccb_scsiio *csio; 2665 union ccb *ccb; 2666 int error; 2667 2668 error = 0; 2669 2670 ccb = cdgetccb(periph, /* priority */ 1); 2671 2672 csio = &ccb->csio; 2673 2674 cam_fill_csio(csio, 2675 /* retries */ 1, 2676 /* cbfcnp */ cddone, 2677 /* flags */ CAM_DIR_IN, 2678 /* tag_action */ MSG_SIMPLE_Q_TAG, 2679 /* data_ptr */ (u_int8_t *)data, 2680 /* dxfer_len */ len, 2681 /* sense_len */ SSD_FULL_SIZE, 2682 sizeof(struct scsi_read_subchannel), 2683 /* timeout */ 50000); 2684 2685 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 2686 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2687 2688 scsi_cmd->op_code = READ_SUBCHANNEL; 2689 if (mode == CD_MSF_FORMAT) 2690 scsi_cmd->byte1 |= CD_MSF; 2691 scsi_cmd->byte2 = SRS_SUBQ; 2692 scsi_cmd->subchan_format = format; 2693 scsi_cmd->track = track; 2694 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 2695 scsi_cmd->control = 0; 2696 2697 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2698 /*sense_flags*/SF_RETRY_UA); 2699 2700 xpt_release_ccb(ccb); 2701 2702 return(error); 2703 } 2704 2705 2706 static int 2707 cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page) 2708 { 2709 struct scsi_mode_sense_6 *scsi_cmd; 2710 struct ccb_scsiio *csio; 2711 union ccb *ccb; 2712 int error; 2713 2714 ccb = cdgetccb(periph, /* priority */ 1); 2715 2716 csio = &ccb->csio; 2717 2718 bzero(data, sizeof(*data)); 2719 cam_fill_csio(csio, 2720 /* retries */ 1, 2721 /* cbfcnp */ cddone, 2722 /* flags */ CAM_DIR_IN, 2723 /* tag_action */ MSG_SIMPLE_Q_TAG, 2724 /* data_ptr */ (u_int8_t *)data, 2725 /* dxfer_len */ sizeof(*data), 2726 /* sense_len */ SSD_FULL_SIZE, 2727 sizeof(struct scsi_mode_sense_6), 2728 /* timeout */ 50000); 2729 2730 scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes; 2731 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2732 2733 scsi_cmd->page = page; 2734 scsi_cmd->length = sizeof(*data) & 0xff; 2735 scsi_cmd->opcode = MODE_SENSE; 2736 2737 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2738 /*sense_flags*/SF_RETRY_UA); 2739 2740 xpt_release_ccb(ccb); 2741 2742 return(error); 2743 } 2744 2745 static int 2746 cdsetmode(struct cam_periph *periph, struct cd_mode_data *data) 2747 { 2748 struct scsi_mode_select_6 *scsi_cmd; 2749 struct ccb_scsiio *csio; 2750 union ccb *ccb; 2751 int error; 2752 2753 ccb = cdgetccb(periph, /* priority */ 1); 2754 2755 csio = &ccb->csio; 2756 2757 error = 0; 2758 2759 cam_fill_csio(csio, 2760 /* retries */ 1, 2761 /* cbfcnp */ cddone, 2762 /* flags */ CAM_DIR_IN, 2763 /* tag_action */ MSG_SIMPLE_Q_TAG, 2764 /* data_ptr */ (u_int8_t *)data, 2765 /* dxfer_len */ sizeof(*data), 2766 /* sense_len */ SSD_FULL_SIZE, 2767 sizeof(struct scsi_mode_select_6), 2768 /* timeout */ 50000); 2769 2770 scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes; 2771 2772 bzero(scsi_cmd, sizeof(*scsi_cmd)); 2773 scsi_cmd->opcode = MODE_SELECT; 2774 scsi_cmd->byte2 |= SMS_PF; 2775 scsi_cmd->length = sizeof(*data) & 0xff; 2776 data->header.data_length = 0; 2777 /* 2778 * SONY drives do not allow a mode select with a medium_type 2779 * value that has just been returned by a mode sense; use a 2780 * medium_type of 0 (Default) instead. 2781 */ 2782 data->header.medium_type = 0; 2783 2784 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2785 /*sense_flags*/SF_RETRY_UA); 2786 2787 xpt_release_ccb(ccb); 2788 2789 return(error); 2790 } 2791 2792 2793 static int 2794 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 2795 { 2796 struct scsi_play *scsi_cmd; 2797 struct ccb_scsiio *csio; 2798 union ccb *ccb; 2799 int error; 2800 2801 error = 0; 2802 2803 ccb = cdgetccb(periph, /* priority */ 1); 2804 2805 csio = &ccb->csio; 2806 2807 cam_fill_csio(csio, 2808 /* retries */ 1, 2809 /* cbfcnp */ cddone, 2810 /* flags */ CAM_DIR_IN, 2811 /* tag_action */ MSG_SIMPLE_Q_TAG, 2812 /* data_ptr */ NULL, 2813 /* dxfer_len */ 0, 2814 /* sense_len */ SSD_FULL_SIZE, 2815 sizeof(struct scsi_play), 2816 /* timeout */ 50000); 2817 2818 scsi_cmd = (struct scsi_play *)&csio->cdb_io.cdb_bytes; 2819 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2820 2821 scsi_cmd->op_code = PLAY; 2822 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2823 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 2824 2825 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2826 /*sense_flags*/SF_RETRY_UA); 2827 2828 xpt_release_ccb(ccb); 2829 2830 return(error); 2831 2832 } 2833 2834 static int 2835 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 2836 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 2837 { 2838 struct scsi_play_msf *scsi_cmd; 2839 struct ccb_scsiio *csio; 2840 union ccb *ccb; 2841 int error; 2842 2843 error = 0; 2844 2845 ccb = cdgetccb(periph, /* priority */ 1); 2846 2847 csio = &ccb->csio; 2848 2849 cam_fill_csio(csio, 2850 /* retries */ 1, 2851 /* cbfcnp */ cddone, 2852 /* flags */ CAM_DIR_IN, 2853 /* tag_action */ MSG_SIMPLE_Q_TAG, 2854 /* data_ptr */ NULL, 2855 /* dxfer_len */ 0, 2856 /* sense_len */ SSD_FULL_SIZE, 2857 sizeof(struct scsi_play_msf), 2858 /* timeout */ 50000); 2859 2860 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 2861 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2862 2863 scsi_cmd->op_code = PLAY_MSF; 2864 scsi_cmd->start_m = startm; 2865 scsi_cmd->start_s = starts; 2866 scsi_cmd->start_f = startf; 2867 scsi_cmd->end_m = endm; 2868 scsi_cmd->end_s = ends; 2869 scsi_cmd->end_f = endf; 2870 2871 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2872 /*sense_flags*/SF_RETRY_UA); 2873 2874 xpt_release_ccb(ccb); 2875 2876 return(error); 2877 } 2878 2879 2880 static int 2881 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 2882 u_int32_t etrack, u_int32_t eindex) 2883 { 2884 struct scsi_play_track *scsi_cmd; 2885 struct ccb_scsiio *csio; 2886 union ccb *ccb; 2887 int error; 2888 2889 error = 0; 2890 2891 ccb = cdgetccb(periph, /* priority */ 1); 2892 2893 csio = &ccb->csio; 2894 2895 cam_fill_csio(csio, 2896 /* retries */ 1, 2897 /* cbfcnp */ cddone, 2898 /* flags */ CAM_DIR_IN, 2899 /* tag_action */ MSG_SIMPLE_Q_TAG, 2900 /* data_ptr */ NULL, 2901 /* dxfer_len */ 0, 2902 /* sense_len */ SSD_FULL_SIZE, 2903 sizeof(struct scsi_play_track), 2904 /* timeout */ 50000); 2905 2906 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 2907 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2908 2909 scsi_cmd->op_code = PLAY_TRACK; 2910 scsi_cmd->start_track = strack; 2911 scsi_cmd->start_index = sindex; 2912 scsi_cmd->end_track = etrack; 2913 scsi_cmd->end_index = eindex; 2914 2915 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2916 /*sense_flags*/SF_RETRY_UA); 2917 2918 xpt_release_ccb(ccb); 2919 2920 return(error); 2921 } 2922 2923 static int 2924 cdpause(struct cam_periph *periph, u_int32_t go) 2925 { 2926 struct scsi_pause *scsi_cmd; 2927 struct ccb_scsiio *csio; 2928 union ccb *ccb; 2929 int error; 2930 2931 error = 0; 2932 2933 ccb = cdgetccb(periph, /* priority */ 1); 2934 2935 csio = &ccb->csio; 2936 2937 cam_fill_csio(csio, 2938 /* retries */ 1, 2939 /* cbfcnp */ cddone, 2940 /* flags */ CAM_DIR_IN, 2941 /* tag_action */ MSG_SIMPLE_Q_TAG, 2942 /* data_ptr */ NULL, 2943 /* dxfer_len */ 0, 2944 /* sense_len */ SSD_FULL_SIZE, 2945 sizeof(struct scsi_pause), 2946 /* timeout */ 50000); 2947 2948 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 2949 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2950 2951 scsi_cmd->op_code = PAUSE; 2952 scsi_cmd->resume = go; 2953 2954 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2955 /*sense_flags*/SF_RETRY_UA); 2956 2957 xpt_release_ccb(ccb); 2958 2959 return(error); 2960 } 2961 2962 static int 2963 cdstartunit(struct cam_periph *periph) 2964 { 2965 union ccb *ccb; 2966 int error; 2967 2968 error = 0; 2969 2970 ccb = cdgetccb(periph, /* priority */ 1); 2971 2972 scsi_start_stop(&ccb->csio, 2973 /* retries */ 1, 2974 /* cbfcnp */ cddone, 2975 /* tag_action */ MSG_SIMPLE_Q_TAG, 2976 /* start */ TRUE, 2977 /* load_eject */ TRUE, 2978 /* immediate */ FALSE, 2979 /* sense_len */ SSD_FULL_SIZE, 2980 /* timeout */ 50000); 2981 2982 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2983 /*sense_flags*/SF_RETRY_UA); 2984 2985 xpt_release_ccb(ccb); 2986 2987 return(error); 2988 } 2989 2990 static int 2991 cdstopunit(struct cam_periph *periph, u_int32_t eject) 2992 { 2993 union ccb *ccb; 2994 int error; 2995 2996 error = 0; 2997 2998 ccb = cdgetccb(periph, /* priority */ 1); 2999 3000 scsi_start_stop(&ccb->csio, 3001 /* retries */ 1, 3002 /* cbfcnp */ cddone, 3003 /* tag_action */ MSG_SIMPLE_Q_TAG, 3004 /* start */ FALSE, 3005 /* load_eject */ eject, 3006 /* immediate */ FALSE, 3007 /* sense_len */ SSD_FULL_SIZE, 3008 /* timeout */ 50000); 3009 3010 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 3011 /*sense_flags*/SF_RETRY_UA); 3012 3013 xpt_release_ccb(ccb); 3014 3015 return(error); 3016 } 3017