sys/cam/scsi/scsi_cd.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 1997 Justin T. Gibbs.
   5  * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions, and the following disclaimer,
  13  *    without modification, immediately at the beginning of the file.
  14  * 2. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 /*-
  31  * Portions of this driver taken from the original FreeBSD cd driver.
  32  * Written by Julian Elischer (julian@tfs.com)
  33  * for TRW Financial Systems for use under the MACH(2.5) operating system.
  34  *
  35  * TRW Financial Systems, in accordance with their agreement with Carnegie
  36  * Mellon University, makes this software available to CMU to distribute
  37  * or use in any manner that they see fit as long as this message is kept with
  38  * the software. For this reason TFS also grants any other persons or
  39  * organisations permission to use or modify this software.
  40  *
  41  * TFS supplies this software to be publicly redistributed
  42  * on the understanding that TFS is not responsible for the correct
  43  * functioning of this software in any circumstances.
  44  *
  45  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
  46  *
  47  *      from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
  48  */
  49
  50 #include <sys/cdefs.h>
  51 __FBSDID("$FreeBSD$");
  52
  53 #include "opt_cd.h"
  54
  55 #include <sys/param.h>
  56 #include <sys/systm.h>
  57 #include <sys/kernel.h>
  58 #include <sys/bio.h>
  59 #include <sys/conf.h>
  60 #include <sys/disk.h>
  61 #include <sys/malloc.h>
  62 #include <sys/cdio.h>
  63 #include <sys/cdrio.h>
  64 #include <sys/dvdio.h>
  65 #include <sys/devicestat.h>
  66 #include <sys/proc.h>
  67 #include <sys/sbuf.h>
  68 #include <sys/sysctl.h>
  69 #include <sys/sysent.h>
  70 #include <sys/taskqueue.h>
  71 #include <geom/geom_disk.h>
  72
  73 #include <cam/cam.h>
  74 #include <cam/cam_ccb.h>
  75 #include <cam/cam_periph.h>
  76 #include <cam/cam_xpt_periph.h>
  77 #include <cam/cam_queue.h>
  78 #include <cam/cam_sim.h>
  79
  80 #include <cam/scsi/scsi_message.h>
  81 #include <cam/scsi/scsi_da.h>
  82 #include <cam/scsi/scsi_cd.h>
  83
  84 #define LEADOUT         0xaa            /* leadout toc entry */
  85
  86 struct cd_params {
  87         u_int32_t blksize;
  88         u_long    disksize;
  89 };
  90
  91 typedef enum {
  92         CD_Q_NONE               = 0x00,
  93         CD_Q_NO_TOUCH           = 0x01,
  94         CD_Q_BCD_TRACKS         = 0x02,
  95         CD_Q_10_BYTE_ONLY       = 0x10,
  96         CD_Q_RETRY_BUSY         = 0x40
  97 } cd_quirks;
  98
  99 #define CD_Q_BIT_STRING         \
 100         "\020"                  \
 101         "\001NO_TOUCH"          \
 102         "\002BCD_TRACKS"        \
 103         "\00510_BYTE_ONLY"      \
 104         "\007RETRY_BUSY"
 105
 106 typedef enum {
 107         CD_FLAG_INVALID         = 0x0001,
 108         CD_FLAG_NEW_DISC        = 0x0002,
 109         CD_FLAG_DISC_LOCKED     = 0x0004,
 110         CD_FLAG_DISC_REMOVABLE  = 0x0008,
 111         CD_FLAG_SAW_MEDIA       = 0x0010,
 112         CD_FLAG_ACTIVE          = 0x0080,
 113         CD_FLAG_SCHED_ON_COMP   = 0x0100,
 114         CD_FLAG_RETRY_UA        = 0x0200,
 115         CD_FLAG_VALID_MEDIA     = 0x0400,
 116         CD_FLAG_VALID_TOC       = 0x0800,
 117         CD_FLAG_SCTX_INIT       = 0x1000,
 118         CD_FLAG_MEDIA_WAIT      = 0x2000,
 119         CD_FLAG_MEDIA_SCAN_ACT  = 0x4000
 120 } cd_flags;
 121
 122 typedef enum {
 123         CD_CCB_PROBE            = 0x01,
 124         CD_CCB_BUFFER_IO        = 0x02,
 125         CD_CCB_TUR              = 0x03,
 126         CD_CCB_MEDIA_PREVENT    = 0x04,
 127         CD_CCB_MEDIA_ALLOW      = 0x05,
 128         CD_CCB_MEDIA_SIZE       = 0x06,
 129         CD_CCB_MEDIA_TOC_HDR    = 0x07,
 130         CD_CCB_MEDIA_TOC_FULL   = 0x08,
 131         CD_CCB_MEDIA_TOC_LEAD   = 0x09,
 132         CD_CCB_TYPE_MASK        = 0x0F,
 133         CD_CCB_RETRY_UA         = 0x10
 134 } cd_ccb_state;
 135
 136 #define ccb_state ppriv_field0
 137 #define ccb_bp ppriv_ptr1
 138
 139 /*
 140  * According to the MMC-6 spec, 6.25.3.2.11, the lead-out is reported by
 141  * READ_TOC as logical track 170, so at most 169 tracks may be reported.
 142  */
 143 struct cd_tocdata {
 144         struct ioc_toc_header header;
 145         struct cd_toc_entry entries[170];
 146 };
 147
 148 struct cd_toc_single {
 149         struct ioc_toc_header header;
 150         struct cd_toc_entry entry;
 151 };
 152
 153 typedef enum {
 154         CD_STATE_PROBE,
 155         CD_STATE_NORMAL,
 156         CD_STATE_MEDIA_PREVENT,
 157         CD_STATE_MEDIA_ALLOW,
 158         CD_STATE_MEDIA_SIZE,
 159         CD_STATE_MEDIA_TOC_HDR,
 160         CD_STATE_MEDIA_TOC_FULL,
 161         CD_STATE_MEDIA_TOC_LEAD
 162 } cd_state;
 163
 164 struct cd_softc {
 165         cam_pinfo               pinfo;
 166         cd_state                state;
 167         volatile cd_flags       flags;
 168         struct bio_queue_head   bio_queue;
 169         LIST_HEAD(, ccb_hdr)    pending_ccbs;
 170         struct cd_params        params;
 171         cd_quirks               quirks;
 172         struct cam_periph       *periph;
 173         int                     minimum_command_size;
 174         int                     outstanding_cmds;
 175         int                     tur;
 176         struct task             sysctl_task;
 177         struct sysctl_ctx_list  sysctl_ctx;
 178         struct sysctl_oid       *sysctl_tree;
 179         STAILQ_HEAD(, cd_mode_params)   mode_queue;
 180         struct cd_tocdata       toc;
 181         int                     toc_read_len;
 182         struct cd_toc_single    leadout;
 183         struct disk             *disk;
 184         struct callout          mediapoll_c;
 185
 186 #define CD_ANNOUNCETMP_SZ 120
 187         char                    announce_temp[CD_ANNOUNCETMP_SZ];
 188 #define CD_ANNOUNCE_SZ 400
 189         char                    announce_buf[CD_ANNOUNCE_SZ];
 190 };
 191
 192 struct cd_page_sizes {
 193         int page;
 194         int page_size;
 195 };
 196
 197 static struct cd_page_sizes cd_page_size_table[] =
 198 {
 199         { AUDIO_PAGE, sizeof(struct cd_audio_page)}
 200 };
 201
 202 struct cd_quirk_entry {
 203         struct scsi_inquiry_pattern inq_pat;
 204         cd_quirks quirks;
 205 };
 206
 207 /*
 208  * NOTE ON 10_BYTE_ONLY quirks:  Any 10_BYTE_ONLY quirks MUST be because
 209  * your device hangs when it gets a 10 byte command.  Adding a quirk just
 210  * to get rid of the informative diagnostic message is not acceptable.  All
 211  * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
 212  * referenced in a comment along with the quirk) , and must be approved by
 213  * ken@FreeBSD.org.  Any quirks added that don't adhere to this policy may
 214  * be removed until the submitter can explain why they are needed.
 215  * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
 216  * when the CAM_NEW_TRAN_CODE work is done.
 217  */
 218 static struct cd_quirk_entry cd_quirk_table[] =
 219 {
 220         {
 221                 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
 222                 /* quirks */ CD_Q_BCD_TRACKS
 223         },
 224         {
 225                 /*
 226                  * VMware returns BUSY status when storage has transient
 227                  * connectivity problems, so better wait.
 228                  */
 229                 {T_CDROM, SIP_MEDIA_REMOVABLE, "NECVMWar", "VMware IDE CDR10", "*"},
 230                 /*quirks*/ CD_Q_RETRY_BUSY
 231         }
 232 };
 233
 234 #ifdef COMPAT_FREEBSD32
 235 struct ioc_read_toc_entry32 {
 236         u_char  address_format;
 237         u_char  starting_track;
 238         u_short data_len;
 239         uint32_t data;  /* (struct cd_toc_entry *) */
 240 };
 241 #define CDIOREADTOCENTRYS_32    \
 242     _IOC_NEWTYPE(CDIOREADTOCENTRYS, struct ioc_read_toc_entry32)
 243 #endif
 244
 245 static  disk_open_t     cdopen;
 246 static  disk_close_t    cdclose;
 247 static  disk_ioctl_t    cdioctl;
 248 static  disk_strategy_t cdstrategy;
 249
 250 static  periph_init_t   cdinit;
 251 static  periph_ctor_t   cdregister;
 252 static  periph_dtor_t   cdcleanup;
 253 static  periph_start_t  cdstart;
 254 static  periph_oninv_t  cdoninvalidate;
 255 static  void            cdasync(void *callback_arg, u_int32_t code,
 256                                 struct cam_path *path, void *arg);
 257 static  int             cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
 258 static  int             cdrunccb(union ccb *ccb,
 259                                  int (*error_routine)(union ccb *ccb,
 260                                                       u_int32_t cam_flags,
 261                                                       u_int32_t sense_flags),
 262                                  u_int32_t cam_flags, u_int32_t sense_flags);
 263 static  void            cddone(struct cam_periph *periph,
 264                                union ccb *start_ccb);
 265 static  union cd_pages  *cdgetpage(struct cd_mode_params *mode_params);
 266 static  int             cdgetpagesize(int page_num);
 267 static  void            cdprevent(struct cam_periph *periph, int action);
 268 static  void            cdmediaprobedone(struct cam_periph *periph);
 269 static  int             cdcheckmedia(struct cam_periph *periph, int do_wait);
 270 #if 0
 271 static  int             cdsize(struct cam_periph *periph, u_int32_t *size);
 272 #endif
 273 static  int             cd6byteworkaround(union ccb *ccb);
 274 static  int             cderror(union ccb *ccb, u_int32_t cam_flags,
 275                                 u_int32_t sense_flags);
 276 static  int             cdreadtoc(struct cam_periph *periph, u_int32_t mode,
 277                                   u_int32_t start, u_int8_t *data,
 278                                   u_int32_t len, u_int32_t sense_flags);
 279 static  int             cdgetmode(struct cam_periph *periph,
 280                                   struct cd_mode_params *data, u_int32_t page);
 281 static  int             cdsetmode(struct cam_periph *periph,
 282                                   struct cd_mode_params *data);
 283 static  int             cdplay(struct cam_periph *periph, u_int32_t blk,
 284                                u_int32_t len);
 285 static  int             cdreadsubchannel(struct cam_periph *periph,
 286                                          u_int32_t mode, u_int32_t format,
 287                                          int track,
 288                                          struct cd_sub_channel_info *data,
 289                                          u_int32_t len);
 290 static  int             cdplaymsf(struct cam_periph *periph, u_int32_t startm,
 291                                   u_int32_t starts, u_int32_t startf,
 292                                   u_int32_t endm, u_int32_t ends,
 293                                   u_int32_t endf);
 294 static  int             cdplaytracks(struct cam_periph *periph,
 295                                      u_int32_t strack, u_int32_t sindex,
 296                                      u_int32_t etrack, u_int32_t eindex);
 297 static  int             cdpause(struct cam_periph *periph, u_int32_t go);
 298 static  int             cdstopunit(struct cam_periph *periph, u_int32_t eject);
 299 static  int             cdstartunit(struct cam_periph *periph, int load);
 300 static  int             cdsetspeed(struct cam_periph *periph,
 301                                    u_int32_t rdspeed, u_int32_t wrspeed);
 302 static  int             cdreportkey(struct cam_periph *periph,
 303                                     struct dvd_authinfo *authinfo);
 304 static  int             cdsendkey(struct cam_periph *periph,
 305                                   struct dvd_authinfo *authinfo);
 306 static  int             cdreaddvdstructure(struct cam_periph *periph,
 307                                            struct dvd_struct *dvdstruct);
 308 static  callout_func_t  cdmediapoll;
 309
 310 static struct periph_driver cddriver =
 311 {
 312         cdinit, "cd",
 313         TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
 314 };
 315
 316 PERIPHDRIVER_DECLARE(cd, cddriver);
 317
 318 #ifndef CD_DEFAULT_POLL_PERIOD
 319 #define CD_DEFAULT_POLL_PERIOD  3
 320 #endif
 321 #ifndef CD_DEFAULT_RETRY
 322 #define CD_DEFAULT_RETRY        4
 323 #endif
 324 #ifndef CD_DEFAULT_TIMEOUT
 325 #define CD_DEFAULT_TIMEOUT      30000
 326 #endif
 327
 328 static int cd_poll_period = CD_DEFAULT_POLL_PERIOD;
 329 static int cd_retry_count = CD_DEFAULT_RETRY;
 330 static int cd_timeout = CD_DEFAULT_TIMEOUT;
 331
 332 static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
 333     "CAM CDROM driver");
 334 SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
 335            &cd_poll_period, 0, "Media polling period in seconds");
 336 SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
 337            &cd_retry_count, 0, "Normal I/O retry count");
 338 SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RWTUN,
 339            &cd_timeout, 0, "Timeout, in us, for read operations");
 340
 341 static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
 342
 343 static void
 344 cdinit(void)
 345 {
 346         cam_status status;
 347
 348         /*
 349          * Install a global async callback.  This callback will
 350          * receive async callbacks like "new device found".
 351          */
 352         status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL);
 353
 354         if (status != CAM_REQ_CMP) {
 355                 printf("cd: Failed to attach master async callback "
 356                        "due to status 0x%x!\n", status);
 357         }
 358 }
 359
 360 /*
 361  * Callback from GEOM, called when it has finished cleaning up its
 362  * resources.
 363  */
 364 static void
 365 cddiskgonecb(struct disk *dp)
 366 {
 367         struct cam_periph *periph;
 368
 369         periph = (struct cam_periph *)dp->d_drv1;
 370         cam_periph_release(periph);
 371 }
 372
 373 static void
 374 cdoninvalidate(struct cam_periph *periph)
 375 {
 376         struct cd_softc *softc;
 377
 378         cam_periph_assert(periph, MA_OWNED);
 379         softc = (struct cd_softc *)periph->softc;
 380
 381         /*
 382          * De-register any async callbacks.
 383          */
 384         xpt_register_async(0, cdasync, periph, periph->path);
 385
 386         softc->flags |= CD_FLAG_INVALID;
 387
 388         /*
 389          * Return all queued I/O with ENXIO.
 390          * XXX Handle any transactions queued to the card
 391          *     with XPT_ABORT_CCB.
 392          */
 393         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 394
 395         disk_gone(softc->disk);
 396 }
 397
 398 static void
 399 cdcleanup(struct cam_periph *periph)
 400 {
 401         struct cd_softc *softc;
 402
 403         softc = (struct cd_softc *)periph->softc;
 404
 405         cam_periph_unlock(periph);
 406         if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
 407             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 408                 xpt_print(periph->path, "can't remove sysctl context\n");
 409         }
 410
 411         callout_drain(&softc->mediapoll_c);
 412         disk_destroy(softc->disk);
 413         free(softc, M_DEVBUF);
 414         cam_periph_lock(periph);
 415 }
 416
 417 static void
 418 cdasync(void *callback_arg, u_int32_t code,
 419         struct cam_path *path, void *arg)
 420 {
 421         struct cam_periph *periph;
 422         struct cd_softc *softc;
 423
 424         periph = (struct cam_periph *)callback_arg;
 425         switch (code) {
 426         case AC_FOUND_DEVICE:
 427         {
 428                 struct ccb_getdev *cgd;
 429                 cam_status status;
 430
 431                 cgd = (struct ccb_getdev *)arg;
 432                 if (cgd == NULL)
 433                         break;
 434
 435                 if (cgd->protocol != PROTO_SCSI)
 436                         break;
 437                 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
 438                         break;
 439                 if (SID_TYPE(&cgd->inq_data) != T_CDROM
 440                     && SID_TYPE(&cgd->inq_data) != T_WORM)
 441                         break;
 442
 443                 /*
 444                  * Allocate a peripheral instance for
 445                  * this device and start the probe
 446                  * process.
 447                  */
 448                 status = cam_periph_alloc(cdregister, cdoninvalidate,
 449                                           cdcleanup, cdstart,
 450                                           "cd", CAM_PERIPH_BIO,
 451                                           path, cdasync,
 452                                           AC_FOUND_DEVICE, cgd);
 453
 454                 if (status != CAM_REQ_CMP
 455                  && status != CAM_REQ_INPROG)
 456                         printf("cdasync: Unable to attach new device "
 457                                "due to status 0x%x\n", status);
 458
 459                 return;
 460         }
 461         case AC_UNIT_ATTENTION:
 462         {
 463                 union ccb *ccb;
 464                 int error_code, sense_key, asc, ascq;
 465
 466                 softc = (struct cd_softc *)periph->softc;
 467                 ccb = (union ccb *)arg;
 468
 469                 /*
 470                  * Handle all media change UNIT ATTENTIONs except
 471                  * our own, as they will be handled by cderror().
 472                  */
 473                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
 474                     scsi_extract_sense_ccb(ccb,
 475                      &error_code, &sense_key, &asc, &ascq)) {
 476                         if (asc == 0x28 && ascq == 0x00)
 477                                 disk_media_changed(softc->disk, M_NOWAIT);
 478                 }
 479                 break;
 480         }
 481         case AC_SCSI_AEN:
 482                 cam_periph_assert(periph, MA_OWNED);
 483                 softc = (struct cd_softc *)periph->softc;
 484                 if (softc->state == CD_STATE_NORMAL && !softc->tur) {
 485                         if (cam_periph_acquire(periph) == 0) {
 486                                 softc->tur = 1;
 487                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 488                         }
 489                 }
 490                 /* FALLTHROUGH */
 491         case AC_SENT_BDR:
 492         case AC_BUS_RESET:
 493         {
 494                 struct ccb_hdr *ccbh;
 495
 496                 cam_periph_assert(periph, MA_OWNED);
 497                 softc = (struct cd_softc *)periph->softc;
 498                 /*
 499                  * Don't fail on the expected unit attention
 500                  * that will occur.
 501                  */
 502                 softc->flags |= CD_FLAG_RETRY_UA;
 503                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
 504                         ccbh->ccb_state |= CD_CCB_RETRY_UA;
 505                 break;
 506         }
 507         default:
 508                 break;
 509         }
 510
 511         cam_periph_async(periph, code, path, arg);
 512 }
 513
 514 static void
 515 cdsysctlinit(void *context, int pending)
 516 {
 517         struct cam_periph *periph;
 518         struct cd_softc *softc;
 519         char tmpstr[32], tmpstr2[16];
 520
 521         periph = (struct cam_periph *)context;
 522         if (cam_periph_acquire(periph) != 0)
 523                 return;
 524
 525         softc = (struct cd_softc *)periph->softc;
 526         snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
 527         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
 528
 529         sysctl_ctx_init(&softc->sysctl_ctx);
 530         cam_periph_lock(periph);
 531         softc->flags |= CD_FLAG_SCTX_INIT;
 532         cam_periph_unlock(periph);
 533         softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
 534                 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
 535                 tmpstr2, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, tmpstr,
 536                 "device_index");
 537
 538         if (softc->sysctl_tree == NULL) {
 539                 printf("cdsysctlinit: unable to allocate sysctl tree\n");
 540                 cam_periph_release(periph);
 541                 return;
 542         }
 543
 544         /*
 545          * Now register the sysctl handler, so the user can the value on
 546          * the fly.
 547          */
 548         SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
 549                 OID_AUTO, "minimum_cmd_size",
 550                 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
 551                 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
 552                 "Minimum CDB size");
 553
 554         cam_periph_release(periph);
 555 }
 556
 557 /*
 558  * We have a handler function for this so we can check the values when the
 559  * user sets them, instead of every time we look at them.
 560  */
 561 static int
 562 cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
 563 {
 564         int error, value;
 565
 566         value = *(int *)arg1;
 567
 568         error = sysctl_handle_int(oidp, &value, 0, req);
 569
 570         if ((error != 0)
 571          || (req->newptr == NULL))
 572                 return (error);
 573
 574         /*
 575          * The only real values we can have here are 6 or 10.  I don't
 576          * really forsee having 12 be an option at any time in the future.
 577          * So if the user sets something less than or equal to 6, we'll set
 578          * it to 6.  If he sets something greater than 6, we'll set it to 10.
 579          *
 580          * I suppose we could just return an error here for the wrong values,
 581          * but I don't think it's necessary to do so, as long as we can
 582          * determine the user's intent without too much trouble.
 583          */
 584         if (value < 6)
 585                 value = 6;
 586         else if (value > 6)
 587                 value = 10;
 588
 589         *(int *)arg1 = value;
 590
 591         return (0);
 592 }
 593
 594 static cam_status
 595 cdregister(struct cam_periph *periph, void *arg)
 596 {
 597         struct cd_softc *softc;
 598         struct ccb_pathinq cpi;
 599         struct ccb_getdev *cgd;
 600         char tmpstr[80];
 601         caddr_t match;
 602
 603         cgd = (struct ccb_getdev *)arg;
 604         if (cgd == NULL) {
 605                 printf("cdregister: no getdev CCB, can't register device\n");
 606                 return(CAM_REQ_CMP_ERR);
 607         }
 608
 609         softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,
 610             M_NOWAIT | M_ZERO);
 611         if (softc == NULL) {
 612                 printf("cdregister: Unable to probe new device. "
 613                        "Unable to allocate softc\n");
 614                 return(CAM_REQ_CMP_ERR);
 615         }
 616
 617         LIST_INIT(&softc->pending_ccbs);
 618         STAILQ_INIT(&softc->mode_queue);
 619         softc->state = CD_STATE_PROBE;
 620         bioq_init(&softc->bio_queue);
 621         if (SID_IS_REMOVABLE(&cgd->inq_data))
 622                 softc->flags |= CD_FLAG_DISC_REMOVABLE;
 623
 624         periph->softc = softc;
 625         softc->periph = periph;
 626
 627         /*
 628          * See if this device has any quirks.
 629          */
 630         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
 631                                (caddr_t)cd_quirk_table,
 632                                nitems(cd_quirk_table),
 633                                sizeof(*cd_quirk_table), scsi_inquiry_match);
 634
 635         if (match != NULL)
 636                 softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
 637         else
 638                 softc->quirks = CD_Q_NONE;
 639
 640         /* Check if the SIM does not want 6 byte commands */
 641         xpt_path_inq(&cpi, periph->path);
 642         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
 643                 softc->quirks |= CD_Q_10_BYTE_ONLY;
 644
 645         TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
 646
 647         /* The default is 6 byte commands, unless quirked otherwise */
 648         if (softc->quirks & CD_Q_10_BYTE_ONLY)
 649                 softc->minimum_command_size = 10;
 650         else
 651                 softc->minimum_command_size = 6;
 652
 653         /*
 654          * Refcount and block open attempts until we are setup
 655          * Can't block
 656          */
 657         (void)cam_periph_hold(periph, PRIBIO);
 658         cam_periph_unlock(periph);
 659         /*
 660          * Load the user's default, if any.
 661          */
 662         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
 663                  periph->unit_number);
 664         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
 665
 666         /* 6 and 10 are the only permissible values here. */
 667         if (softc->minimum_command_size < 6)
 668                 softc->minimum_command_size = 6;
 669         else if (softc->minimum_command_size > 6)
 670                 softc->minimum_command_size = 10;
 671
 672         /*
 673          * We need to register the statistics structure for this device,
 674          * but we don't have the blocksize yet for it.  So, we register
 675          * the structure and indicate that we don't have the blocksize
 676          * yet.  Unlike other SCSI peripheral drivers, we explicitly set
 677          * the device type here to be CDROM, rather than just ORing in
 678          * the device type.  This is because this driver can attach to either
 679          * CDROM or WORM devices, and we want this peripheral driver to
 680          * show up in the devstat list as a CD peripheral driver, not a
 681          * WORM peripheral driver.  WORM drives will also have the WORM
 682          * driver attached to them.
 683          */
 684         softc->disk = disk_alloc();
 685         softc->disk->d_devstat = devstat_new_entry("cd",
 686                           periph->unit_number, 0,
 687                           DEVSTAT_BS_UNAVAILABLE,
 688                           DEVSTAT_TYPE_CDROM |
 689                           XPORT_DEVSTAT_TYPE(cpi.transport),
 690                           DEVSTAT_PRIORITY_CD);
 691         softc->disk->d_open = cdopen;
 692         softc->disk->d_close = cdclose;
 693         softc->disk->d_strategy = cdstrategy;
 694         softc->disk->d_gone = cddiskgonecb;
 695         softc->disk->d_ioctl = cdioctl;
 696         softc->disk->d_name = "cd";
 697         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
 698             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
 699         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
 700         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
 701             cgd->inq_data.product, sizeof(cgd->inq_data.product),
 702             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
 703         softc->disk->d_unit = periph->unit_number;
 704         softc->disk->d_drv1 = periph;
 705         if (cpi.maxio == 0)
 706                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
 707         else if (cpi.maxio > maxphys)
 708                 softc->disk->d_maxsize = maxphys;       /* for safety */
 709         else
 710                 softc->disk->d_maxsize = cpi.maxio;
 711         softc->disk->d_flags = 0;
 712         softc->disk->d_hba_vendor = cpi.hba_vendor;
 713         softc->disk->d_hba_device = cpi.hba_device;
 714         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
 715         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
 716         snprintf(softc->disk->d_attachment, sizeof(softc->disk->d_attachment),
 717             "%s%d", cpi.dev_name, cpi.unit_number);
 718
 719         /*
 720          * Acquire a reference to the periph before we register with GEOM.
 721          * We'll release this reference once GEOM calls us back (via
 722          * dadiskgonecb()) telling us that our provider has been freed.
 723          */
 724         if (cam_periph_acquire(periph) != 0) {
 725                 xpt_print(periph->path, "%s: lost periph during "
 726                           "registration!\n", __func__);
 727                 cam_periph_lock(periph);
 728                 return (CAM_REQ_CMP_ERR);
 729         }
 730
 731         disk_create(softc->disk, DISK_VERSION);
 732         cam_periph_lock(periph);
 733
 734         /*
 735          * Add an async callback so that we get
 736          * notified if this device goes away.
 737          */
 738         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
 739             AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path);
 740
 741         /*
 742          * Schedule a periodic media polling events.
 743          */
 744         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
 745         if ((softc->flags & CD_FLAG_DISC_REMOVABLE) &&
 746             (cgd->inq_flags & SID_AEN) == 0 &&
 747             cd_poll_period != 0)
 748                 callout_reset(&softc->mediapoll_c, cd_poll_period * hz,
 749                     cdmediapoll, periph);
 750
 751         xpt_schedule(periph, CAM_PRIORITY_DEV);
 752         return(CAM_REQ_CMP);
 753 }
 754
 755 static int
 756 cdopen(struct disk *dp)
 757 {
 758         struct cam_periph *periph;
 759         struct cd_softc *softc;
 760         int error;
 761
 762         periph = (struct cam_periph *)dp->d_drv1;
 763         softc = (struct cd_softc *)periph->softc;
 764
 765         if (cam_periph_acquire(periph) != 0)
 766                 return(ENXIO);
 767
 768         cam_periph_lock(periph);
 769
 770         if (softc->flags & CD_FLAG_INVALID) {
 771                 cam_periph_release_locked(periph);
 772                 cam_periph_unlock(periph);
 773                 return(ENXIO);
 774         }
 775
 776         if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
 777                 cam_periph_release_locked(periph);
 778                 cam_periph_unlock(periph);
 779                 return (error);
 780         }
 781
 782         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 783             ("cdopen\n"));
 784
 785         /*
 786          * Check for media, and set the appropriate flags.  We don't bail
 787          * if we don't have media, but then we don't allow anything but the
 788          * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
 789          */
 790         cdcheckmedia(periph, /*do_wait*/ 1);
 791
 792         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
 793         cam_periph_unhold(periph);
 794
 795         cam_periph_unlock(periph);
 796
 797         return (0);
 798 }
 799
 800 static int
 801 cdclose(struct disk *dp)
 802 {
 803         struct  cam_periph *periph;
 804         struct  cd_softc *softc;
 805
 806         periph = (struct cam_periph *)dp->d_drv1;
 807         softc = (struct cd_softc *)periph->softc;
 808
 809         cam_periph_lock(periph);
 810         if (cam_periph_hold(periph, PRIBIO) != 0) {
 811                 cam_periph_unlock(periph);
 812                 cam_periph_release(periph);
 813                 return (0);
 814         }
 815
 816         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 817             ("cdclose\n"));
 818
 819         if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
 820                 cdprevent(periph, PR_ALLOW);
 821
 822         /*
 823          * Since we're closing this CD, mark the blocksize as unavailable.
 824          * It will be marked as available when the CD is opened again.
 825          */
 826         softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
 827
 828         /*
 829          * We'll check the media and toc again at the next open().
 830          */
 831         softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
 832
 833         cam_periph_unhold(periph);
 834         cam_periph_release_locked(periph);
 835         cam_periph_unlock(periph);
 836
 837         return (0);
 838 }
 839
 840 static int
 841 cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
 842                                               u_int32_t cam_flags,
 843                                               u_int32_t sense_flags),
 844          u_int32_t cam_flags, u_int32_t sense_flags)
 845 {
 846         struct cd_softc *softc;
 847         struct cam_periph *periph;
 848         int error;
 849
 850         periph = xpt_path_periph(ccb->ccb_h.path);
 851         softc = (struct cd_softc *)periph->softc;
 852
 853         error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
 854                                   softc->disk->d_devstat);
 855
 856         return(error);
 857 }
 858
 859 /*
 860  * Actually translate the requested transfer into one the physical driver
 861  * can understand.  The transfer is described by a buf and will include
 862  * only one physical transfer.
 863  */
 864 static void
 865 cdstrategy(struct bio *bp)
 866 {
 867         struct cam_periph *periph;
 868         struct cd_softc *softc;
 869
 870         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 871         cam_periph_lock(periph);
 872         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 873             ("cdstrategy(%p)\n", bp));
 874
 875         softc = (struct cd_softc *)periph->softc;
 876
 877         /*
 878          * If the device has been made invalid, error out
 879          */
 880         if ((softc->flags & CD_FLAG_INVALID)) {
 881                 cam_periph_unlock(periph);
 882                 biofinish(bp, NULL, ENXIO);
 883                 return;
 884         }
 885
 886         /*
 887          * Place it in the queue of disk activities for this disk
 888          */
 889         bioq_disksort(&softc->bio_queue, bp);
 890
 891         /*
 892          * If we don't know that we have valid media, schedule the media
 893          * check first.  The I/O will get executed after the media check.
 894          */
 895         if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
 896                 cdcheckmedia(periph, /*do_wait*/ 0);
 897         else
 898                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 899
 900         cam_periph_unlock(periph);
 901         return;
 902 }
 903
 904 static void
 905 cdstart(struct cam_periph *periph, union ccb *start_ccb)
 906 {
 907         struct cd_softc *softc;
 908         struct bio *bp;
 909         struct ccb_scsiio *csio;
 910
 911         cam_periph_assert(periph, MA_OWNED);
 912         softc = (struct cd_softc *)periph->softc;
 913
 914         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
 915
 916         switch (softc->state) {
 917         case CD_STATE_NORMAL:
 918         {
 919                 bp = bioq_first(&softc->bio_queue);
 920                 if (bp == NULL) {
 921                         if (softc->tur) {
 922                                 softc->tur = 0;
 923                                 csio = &start_ccb->csio;
 924                                 scsi_test_unit_ready(csio,
 925                                      /*retries*/ cd_retry_count,
 926                                      cddone,
 927                                      MSG_SIMPLE_Q_TAG,
 928                                      SSD_FULL_SIZE,
 929                                      cd_timeout);
 930                                 start_ccb->ccb_h.ccb_bp = NULL;
 931                                 start_ccb->ccb_h.ccb_state = CD_CCB_TUR;
 932                                 xpt_action(start_ccb);
 933                         } else
 934                                 xpt_release_ccb(start_ccb);
 935                 } else {
 936                         if (softc->tur) {
 937                                 softc->tur = 0;
 938                                 cam_periph_release_locked(periph);
 939                         }
 940                         bioq_remove(&softc->bio_queue, bp);
 941
 942                         if ((bp->bio_cmd != BIO_READ) &&
 943                             (bp->bio_cmd != BIO_WRITE)) {
 944                                 biofinish(bp, NULL, EOPNOTSUPP);
 945                                 xpt_release_ccb(start_ccb);
 946                                 return;
 947                         }
 948
 949                         scsi_read_write(&start_ccb->csio,
 950                                         /*retries*/ cd_retry_count,
 951                                         /* cbfcnp */ cddone,
 952                                         MSG_SIMPLE_Q_TAG,
 953                                         /* read */bp->bio_cmd == BIO_READ ?
 954                                         SCSI_RW_READ : SCSI_RW_WRITE,
 955                                         /* byte2 */ 0,
 956                                         /* minimum_cmd_size */ 10,
 957                                         /* lba */ bp->bio_offset /
 958                                           softc->params.blksize,
 959                                         bp->bio_bcount / softc->params.blksize,
 960                                         /* data_ptr */ bp->bio_data,
 961                                         /* dxfer_len */ bp->bio_bcount,
 962                                         /* sense_len */ cd_retry_count ?
 963                                           SSD_FULL_SIZE : SF_NO_PRINT,
 964                                         /* timeout */ cd_timeout);
 965                         /* Use READ CD command for audio tracks. */
 966                         if (softc->params.blksize == 2352) {
 967                                 start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD;
 968                                 start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8;
 969                                 start_ccb->csio.cdb_io.cdb_bytes[10] = 0;
 970                                 start_ccb->csio.cdb_io.cdb_bytes[11] = 0;
 971                                 start_ccb->csio.cdb_len = 12;
 972                         }
 973                         start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
 974
 975                         LIST_INSERT_HEAD(&softc->pending_ccbs,
 976                                          &start_ccb->ccb_h, periph_links.le);
 977                         softc->outstanding_cmds++;
 978
 979                         /* We expect a unit attention from this device */
 980                         if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
 981                                 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
 982                                 softc->flags &= ~CD_FLAG_RETRY_UA;
 983                         }
 984
 985                         start_ccb->ccb_h.ccb_bp = bp;
 986                         bp = bioq_first(&softc->bio_queue);
 987
 988                         xpt_action(start_ccb);
 989                 }
 990                 if (bp != NULL || softc->tur) {
 991                         /* Have more work to do, so ensure we stay scheduled */
 992                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 993                 }
 994                 break;
 995         }
 996         case CD_STATE_PROBE:
 997         case CD_STATE_MEDIA_SIZE:
 998         {
 999                 struct scsi_read_capacity_data *rcap;
1000
1001                 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1002                     M_SCSICD, M_NOWAIT | M_ZERO);
1003                 if (rcap == NULL) {
1004                         xpt_print(periph->path,
1005                             "%s: Couldn't malloc read_capacity data\n",
1006                             __func__);
1007                         xpt_release_ccb(start_ccb);
1008                         /*
1009                          * We can't probe because we can't allocate memory,
1010                          * so invalidate the peripheral.  The system probably
1011                          * has larger problems at this stage.  If we've
1012                          * already probed (and are re-probing capacity), we
1013                          * don't need to invalidate.
1014                          *
1015                          * XXX KDM need to reset probe state and kick out
1016                          * pending I/O.
1017                          */
1018                         if (softc->state == CD_STATE_PROBE)
1019                                 cam_periph_invalidate(periph);
1020                         break;
1021                 }
1022
1023                 /*
1024                  * Set the default capacity and sector size to something that
1025                  * GEOM can handle.  This will get reset when a read capacity
1026                  * completes successfully.
1027                  */
1028                 softc->disk->d_sectorsize = 2048;
1029                 softc->disk->d_mediasize = 0;
1030
1031                 csio = &start_ccb->csio;
1032                 scsi_read_capacity(csio,
1033                                    /*retries*/ cd_retry_count,
1034                                    cddone,
1035                                    MSG_SIMPLE_Q_TAG,
1036                                    rcap,
1037                                    SSD_FULL_SIZE,
1038                                    /*timeout*/20000);
1039                 start_ccb->ccb_h.ccb_bp = NULL;
1040                 if (softc->state == CD_STATE_PROBE)
1041                         start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1042                 else
1043                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_SIZE;
1044                 xpt_action(start_ccb);
1045                 break;
1046         }
1047         case CD_STATE_MEDIA_ALLOW:
1048         case CD_STATE_MEDIA_PREVENT:
1049         {
1050                 /*
1051                  * If the CD is already locked, we don't need to do this.
1052                  * Move on to the capacity check.
1053                  */
1054                 if (softc->state == CD_STATE_MEDIA_PREVENT
1055                  && (softc->flags & CD_FLAG_DISC_LOCKED) != 0) {
1056                         softc->state = CD_STATE_MEDIA_SIZE;
1057                         xpt_release_ccb(start_ccb);
1058                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1059                         break;
1060                 }
1061
1062                 scsi_prevent(&start_ccb->csio,
1063                              /*retries*/ cd_retry_count,
1064                              /*cbfcnp*/ cddone,
1065                              /*tag_action*/ MSG_SIMPLE_Q_TAG,
1066                              /*action*/ (softc->state == CD_STATE_MEDIA_ALLOW) ?
1067                                         PR_ALLOW : PR_PREVENT,
1068                              /*sense_len*/ SSD_FULL_SIZE,
1069                              /*timeout*/ 60000);
1070
1071                 start_ccb->ccb_h.ccb_bp = NULL;
1072                 if (softc->state == CD_STATE_MEDIA_ALLOW)
1073                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_ALLOW;
1074                 else
1075                         start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_PREVENT;
1076                 xpt_action(start_ccb);
1077                 break;
1078         }
1079         case CD_STATE_MEDIA_TOC_HDR: {
1080                 struct ioc_toc_header *toch;
1081
1082                 bzero(&softc->toc, sizeof(softc->toc));
1083
1084                 toch = &softc->toc.header;
1085
1086                 scsi_read_toc(&start_ccb->csio,
1087                               /*retries*/ cd_retry_count,
1088                               /*cbfcnp*/ cddone,
1089                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1090                               /*byte1_flags*/ 0,
1091                               /*format*/ SRTOC_FORMAT_TOC,
1092                               /*track*/ 0,
1093                               /*data_ptr*/ (uint8_t *)toch,
1094                               /*dxfer_len*/ sizeof(*toch),
1095                               /*sense_len*/ SSD_FULL_SIZE,
1096                               /*timeout*/ 50000);
1097                 start_ccb->ccb_h.ccb_bp = NULL;
1098                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_HDR;
1099                 xpt_action(start_ccb);
1100                 break;
1101         }
1102         case CD_STATE_MEDIA_TOC_FULL: {
1103                 bzero(&softc->toc, sizeof(softc->toc));
1104
1105                 scsi_read_toc(&start_ccb->csio,
1106                               /*retries*/ cd_retry_count,
1107                               /*cbfcnp*/ cddone,
1108                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1109                               /*byte1_flags*/ 0,
1110                               /*format*/ SRTOC_FORMAT_TOC,
1111                               /*track*/ 0,
1112                               /*data_ptr*/ (uint8_t *)&softc->toc,
1113                               /*dxfer_len*/ softc->toc_read_len ?
1114                                             softc->toc_read_len :
1115                                             sizeof(softc->toc),
1116                               /*sense_len*/ SSD_FULL_SIZE,
1117                               /*timeout*/ 50000);
1118                 start_ccb->ccb_h.ccb_bp = NULL;
1119                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_FULL;
1120                 xpt_action(start_ccb);
1121                 break;
1122         }
1123         case CD_STATE_MEDIA_TOC_LEAD: {
1124                 struct cd_toc_single *leadout;
1125
1126                 leadout = &softc->leadout;
1127                 bzero(leadout, sizeof(*leadout));
1128
1129                 scsi_read_toc(&start_ccb->csio,
1130                               /*retries*/ cd_retry_count,
1131                               /*cbfcnp*/ cddone,
1132                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1133                               /*byte1_flags*/ CD_MSF,
1134                               /*format*/ SRTOC_FORMAT_TOC,
1135                               /*track*/ LEADOUT,
1136                               /*data_ptr*/ (uint8_t *)leadout,
1137                               /*dxfer_len*/ sizeof(*leadout),
1138                               /*sense_len*/ SSD_FULL_SIZE,
1139                               /*timeout*/ 50000);
1140                 start_ccb->ccb_h.ccb_bp = NULL;
1141                 start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_LEAD;
1142                 xpt_action(start_ccb);
1143                 break;
1144         }
1145         }
1146 }
1147
1148 static void
1149 cddone(struct cam_periph *periph, union ccb *done_ccb)
1150 {
1151         struct cd_softc *softc;
1152         struct ccb_scsiio *csio;
1153
1154         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1155
1156         cam_periph_assert(periph, MA_OWNED);
1157         softc = (struct cd_softc *)periph->softc;
1158         csio = &done_ccb->csio;
1159
1160         switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1161         case CD_CCB_BUFFER_IO:
1162         {
1163                 struct bio      *bp;
1164                 int             error;
1165
1166                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1167                 error = 0;
1168
1169                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1170                         int sf;
1171
1172                         if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1173                                 sf = SF_RETRY_UA;
1174                         else
1175                                 sf = 0;
1176
1177                         error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
1178                         if (error == ERESTART) {
1179                                 /*
1180                                  * A retry was scheuled, so
1181                                  * just return.
1182                                  */
1183                                 return;
1184                         }
1185                 }
1186
1187                 if (error != 0) {
1188                         xpt_print(periph->path,
1189                             "cddone: got error %#x back\n", error);
1190                         bioq_flush(&softc->bio_queue, NULL, EIO);
1191                         bp->bio_resid = bp->bio_bcount;
1192                         bp->bio_error = error;
1193                         bp->bio_flags |= BIO_ERROR;
1194                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1195                                 cam_release_devq(done_ccb->ccb_h.path,
1196                                          /*relsim_flags*/0,
1197                                          /*reduction*/0,
1198                                          /*timeout*/0,
1199                                          /*getcount_only*/0);
1200
1201                 } else {
1202                         bp->bio_resid = csio->resid;
1203                         bp->bio_error = 0;
1204                         if (bp->bio_resid != 0) {
1205                                 /*
1206                                  * Short transfer ???
1207                                  * XXX: not sure this is correct for partial
1208                                  * transfers at EOM
1209                                  */
1210                                 bp->bio_flags |= BIO_ERROR;
1211                         }
1212                 }
1213
1214                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1215                 softc->outstanding_cmds--;
1216
1217                 biofinish(bp, NULL, 0);
1218                 break;
1219         }
1220         case CD_CCB_PROBE:
1221         {
1222                 struct     scsi_read_capacity_data *rdcap;
1223                 char       *announce_buf;
1224                 struct     cd_params *cdp;
1225                 int error;
1226
1227                 cdp = &softc->params;
1228                 announce_buf = softc->announce_temp;
1229                 bzero(announce_buf, CD_ANNOUNCETMP_SZ);
1230
1231                 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1232
1233                 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1234                 cdp->blksize = scsi_4btoul (rdcap->length);
1235
1236                 /*
1237                  * Retry any UNIT ATTENTION type errors.  They
1238                  * are expected at boot.
1239                  */
1240                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP ||
1241                     (error = cderror(done_ccb, CAM_RETRY_SELTO,
1242                                 SF_RETRY_UA | SF_NO_PRINT)) == 0) {
1243                         snprintf(announce_buf, CD_ANNOUNCETMP_SZ,
1244                             "%juMB (%ju %u byte sectors)",
1245                             ((uintmax_t)cdp->disksize * cdp->blksize) /
1246                              (1024 * 1024),
1247                             (uintmax_t)cdp->disksize, cdp->blksize);
1248                 } else {
1249                         if (error == ERESTART) {
1250                                 /*
1251                                  * A retry was scheuled, so
1252                                  * just return.
1253                                  */
1254                                 return;
1255                         } else {
1256                                 int asc, ascq;
1257                                 int sense_key, error_code;
1258                                 int have_sense;
1259                                 cam_status status;
1260                                 struct ccb_getdev cgd;
1261
1262                                 /* Don't wedge this device's queue */
1263                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1264                                         cam_release_devq(done_ccb->ccb_h.path,
1265                                                  /*relsim_flags*/0,
1266                                                  /*reduction*/0,
1267                                                  /*timeout*/0,
1268                                                  /*getcount_only*/0);
1269
1270                                 status = done_ccb->ccb_h.status;
1271
1272                                 bzero(&cgd, sizeof(cgd));
1273                                 xpt_setup_ccb(&cgd.ccb_h,
1274                                               done_ccb->ccb_h.path,
1275                                               CAM_PRIORITY_NORMAL);
1276                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1277                                 xpt_action((union ccb *)&cgd);
1278
1279                                 if (scsi_extract_sense_ccb(done_ccb,
1280                                     &error_code, &sense_key, &asc, &ascq))
1281                                         have_sense = TRUE;
1282                                 else
1283                                         have_sense = FALSE;
1284
1285                                 /*
1286                                  * Attach to anything that claims to be a
1287                                  * CDROM or WORM device, as long as it
1288                                  * doesn't return a "Logical unit not
1289                                  * supported" (0x25) error.
1290                                  */
1291                                 if ((have_sense) && (asc != 0x25)
1292                                  && (error_code == SSD_CURRENT_ERROR
1293                                   || error_code == SSD_DESC_CURRENT_ERROR)) {
1294                                         const char *sense_key_desc;
1295                                         const char *asc_desc;
1296
1297                                         scsi_sense_desc(sense_key, asc, ascq,
1298                                                         &cgd.inq_data,
1299                                                         &sense_key_desc,
1300                                                         &asc_desc);
1301                                         snprintf(announce_buf,
1302                                             CD_ANNOUNCETMP_SZ,
1303                                                 "Attempt to query device "
1304                                                 "size failed: %s, %s",
1305                                                 sense_key_desc,
1306                                                 asc_desc);
1307                                 } else if ((have_sense == 0)
1308                                       && ((status & CAM_STATUS_MASK) ==
1309                                            CAM_SCSI_STATUS_ERROR)
1310                                       && (csio->scsi_status ==
1311                                           SCSI_STATUS_BUSY)) {
1312                                         snprintf(announce_buf,
1313                                             CD_ANNOUNCETMP_SZ,
1314                                             "Attempt to query device "
1315                                             "size failed: SCSI Status: %s",
1316                                             scsi_status_string(csio));
1317                                 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1318                                         /*
1319                                          * We only print out an error for
1320                                          * CDROM type devices.  For WORM
1321                                          * devices, we don't print out an
1322                                          * error since a few WORM devices
1323                                          * don't support CDROM commands.
1324                                          * If we have sense information, go
1325                                          * ahead and print it out.
1326                                          * Otherwise, just say that we
1327                                          * couldn't attach.
1328                                          */
1329
1330                                         /*
1331                                          * Just print out the error, not
1332                                          * the full probe message, when we
1333                                          * don't attach.
1334                                          */
1335                                         if (have_sense)
1336                                                 scsi_sense_print(
1337                                                         &done_ccb->csio);
1338                                         else {
1339                                                 xpt_print(periph->path,
1340                                                     "got CAM status %#x\n",
1341                                                     done_ccb->ccb_h.status);
1342                                         }
1343                                         xpt_print(periph->path, "fatal error, "
1344                                             "failed to attach to device\n");
1345                                         /*
1346                                          * Invalidate this peripheral.
1347                                          */
1348                                         cam_periph_invalidate(periph);
1349
1350                                         announce_buf = NULL;
1351                                 } else {
1352                                         /*
1353                                          * Invalidate this peripheral.
1354                                          */
1355                                         cam_periph_invalidate(periph);
1356                                         announce_buf = NULL;
1357                                 }
1358                         }
1359                 }
1360                 free(rdcap, M_SCSICD);
1361                 if (announce_buf != NULL) {
1362                         struct sbuf sb;
1363
1364                         sbuf_new(&sb, softc->announce_buf, CD_ANNOUNCE_SZ,
1365                             SBUF_FIXEDLEN);
1366                         xpt_announce_periph_sbuf(periph, &sb, announce_buf);
1367                         xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
1368                             CD_Q_BIT_STRING);
1369                         sbuf_finish(&sb);
1370                         sbuf_putbuf(&sb);
1371
1372                         /*
1373                          * Create our sysctl variables, now that we know
1374                          * we have successfully attached.
1375                          */
1376                         taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1377                 }
1378                 softc->state = CD_STATE_NORMAL;
1379                 /*
1380                  * Since our peripheral may be invalidated by an error
1381                  * above or an external event, we must release our CCB
1382                  * before releasing the probe lock on the peripheral.
1383                  * The peripheral will only go away once the last lock
1384                  * is removed, and we need it around for the CCB release
1385                  * operation.
1386                  */
1387                 xpt_release_ccb(done_ccb);
1388                 cam_periph_unhold(periph);
1389                 return;
1390         }
1391         case CD_CCB_TUR:
1392         {
1393                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1394                         if (cderror(done_ccb, CAM_RETRY_SELTO,
1395                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
1396                             ERESTART)
1397                                 return;
1398                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1399                                 cam_release_devq(done_ccb->ccb_h.path,
1400                                                  /*relsim_flags*/0,
1401                                                  /*reduction*/0,
1402                                                  /*timeout*/0,
1403                                                  /*getcount_only*/0);
1404                 }
1405                 xpt_release_ccb(done_ccb);
1406                 cam_periph_release_locked(periph);
1407                 return;
1408         }
1409         case CD_CCB_MEDIA_ALLOW:
1410         case CD_CCB_MEDIA_PREVENT:
1411         {
1412                 int error;
1413                 int is_prevent;
1414
1415                 error = 0;
1416
1417                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1418                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1419                             SF_RETRY_UA | SF_NO_PRINT);
1420                 }
1421                 if (error == ERESTART)
1422                         return;
1423                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1424                         cam_release_devq(done_ccb->ccb_h.path,
1425                                          /*relsim_flags*/0,
1426                                          /*reduction*/0,
1427                                          /*timeout*/0,
1428                                          /*getcount_only*/0);
1429
1430                 /*
1431                  * Note that just like the original cdcheckmedia(), we do
1432                  * a prevent without failing the whole operation if the
1433                  * prevent fails.  We try, but keep going if it doesn't
1434                  * work.
1435                  */
1436
1437                 if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1438                      CD_CCB_MEDIA_PREVENT)
1439                         is_prevent = 1;
1440                 else
1441                         is_prevent = 0;
1442
1443                 xpt_release_ccb(done_ccb);
1444
1445                 if (is_prevent != 0) {
1446                         if (error == 0)
1447                                 softc->flags |= CD_FLAG_DISC_LOCKED;
1448                         else
1449                                 softc->flags &= ~CD_FLAG_DISC_LOCKED;
1450                         softc->state = CD_STATE_MEDIA_SIZE;
1451                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1452                 } else {
1453                         if (error == 0)
1454                                 softc->flags &= ~CD_FLAG_DISC_LOCKED;
1455                         softc->state = CD_STATE_NORMAL;
1456                         if (bioq_first(&softc->bio_queue) != NULL)
1457                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1458                 }
1459                 return;
1460         }
1461         case CD_CCB_MEDIA_SIZE:
1462         {
1463                 struct scsi_read_capacity_data *rdcap;
1464                 int error;
1465
1466                 error = 0;
1467                 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1468                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1469                             SF_RETRY_UA | SF_NO_PRINT);
1470                 }
1471                 if (error == ERESTART)
1472                         return;
1473                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1474                         cam_release_devq(done_ccb->ccb_h.path,
1475                                          /*relsim_flags*/0,
1476                                          /*reduction*/0,
1477                                          /*timeout*/0,
1478                                          /*getcount_only*/0);
1479                 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1480
1481                 if (error == 0) {
1482                         softc->params.disksize =scsi_4btoul(rdcap->addr) + 1;
1483                         softc->params.blksize  = scsi_4btoul(rdcap->length);
1484
1485                         /* Make sure we got at least some block size. */
1486                         if (softc->params.blksize == 0)
1487                                 error = EIO;
1488                         /*
1489                          * SCSI-3 mandates that the reported blocksize shall be
1490                          * 2048.  Older drives sometimes report funny values,
1491                          * trim it down to 2048, or other parts of the kernel
1492                          * will get confused.
1493                          *
1494                          * XXX we leave drives alone that might report 512
1495                          * bytes, as well as drives reporting more weird
1496                          * sizes like perhaps 4K.
1497                          */
1498                         if (softc->params.blksize > 2048
1499                          && softc->params.blksize <= 2352)
1500                                 softc->params.blksize = 2048;
1501                 }
1502                 free(rdcap, M_SCSICD);
1503
1504                 if (error == 0) {
1505                         softc->disk->d_sectorsize = softc->params.blksize;
1506                         softc->disk->d_mediasize =
1507                             (off_t)softc->params.blksize *
1508                             softc->params.disksize;
1509                         softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
1510                         softc->state = CD_STATE_MEDIA_TOC_HDR;
1511                 } else {
1512                         softc->flags &= ~(CD_FLAG_VALID_MEDIA |
1513                                           CD_FLAG_VALID_TOC);
1514                         bioq_flush(&softc->bio_queue, NULL, EINVAL);
1515                         softc->state = CD_STATE_MEDIA_ALLOW;
1516                         cdmediaprobedone(periph);
1517                 }
1518                 xpt_release_ccb(done_ccb);
1519                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1520                 return;
1521         }
1522         case CD_CCB_MEDIA_TOC_HDR:
1523         case CD_CCB_MEDIA_TOC_FULL:
1524         case CD_CCB_MEDIA_TOC_LEAD:
1525         {
1526                 int error;
1527                 struct ioc_toc_header *toch;
1528                 int num_entries;
1529                 int cdindex;
1530
1531                 error = 0;
1532
1533                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1534                         error = cderror(done_ccb, CAM_RETRY_SELTO,
1535                             SF_RETRY_UA | SF_NO_PRINT);
1536                 }
1537                 if (error == ERESTART)
1538                         return;
1539
1540                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1541                         cam_release_devq(done_ccb->ccb_h.path,
1542                                          /*relsim_flags*/0,
1543                                          /*reduction*/0,
1544                                          /*timeout*/0,
1545                                          /*getcount_only*/0);
1546
1547                 /*
1548                  * We will get errors here for media that doesn't have a table
1549                  * of contents.  According to the MMC-3 spec: "When a Read
1550                  * TOC/PMA/ATIP command is presented for a DDCD/CD-R/RW media,
1551                  * where the first TOC has not been recorded (no complete
1552                  * session) and the Format codes 0000b, 0001b, or 0010b are
1553                  * specified, this command shall be rejected with an INVALID
1554                  * FIELD IN CDB.  Devices that are not capable of reading an
1555                  * incomplete session on DDC/CD-R/RW media shall report
1556                  * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
1557                  *
1558                  * So this isn't fatal if we can't read the table of contents,
1559                  * it just means that the user won't be able to issue the
1560                  * play tracks ioctl, and likely lots of other stuff won't
1561                  * work either.  They need to burn the CD before we can do
1562                  * a whole lot with it.  So we don't print anything here if
1563                  * we get an error back.
1564                  *
1565                  * We also bail out if the drive doesn't at least give us
1566                  * the full TOC header.
1567                  */
1568                 if ((error != 0)
1569                  || ((csio->dxfer_len - csio->resid) <
1570                       sizeof(struct ioc_toc_header))) {
1571                         softc->flags &= ~CD_FLAG_VALID_TOC;
1572                         bzero(&softc->toc, sizeof(softc->toc));
1573                         /*
1574                          * Failing the TOC read is not an error.
1575                          */
1576                         softc->state = CD_STATE_NORMAL;
1577                         xpt_release_ccb(done_ccb);
1578
1579                         cdmediaprobedone(periph);
1580
1581                         /*
1582                          * Go ahead and schedule I/O execution if there is
1583                          * anything in the queue.  It'll probably get
1584                          * kicked out with an error.
1585                          */
1586                         if (bioq_first(&softc->bio_queue) != NULL)
1587                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1588                         return;
1589                 }
1590
1591                 /*
1592                  * Note that this is NOT the storage location used for the
1593                  * leadout!
1594                  */
1595                 toch = &softc->toc.header;
1596
1597                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1598                         toch->starting_track = bcd2bin(toch->starting_track);
1599                         toch->ending_track = bcd2bin(toch->ending_track);
1600                 }
1601
1602                 /* Number of TOC entries, plus leadout */
1603                 num_entries = toch->ending_track - toch->starting_track + 2;
1604                 cdindex = toch->starting_track + num_entries - 1;
1605
1606                 if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1607                      CD_CCB_MEDIA_TOC_HDR) {
1608                         if (num_entries <= 0 ||
1609                             num_entries > nitems(softc->toc.entries)) {
1610                                 softc->flags &= ~CD_FLAG_VALID_TOC;
1611                                 bzero(&softc->toc, sizeof(softc->toc));
1612                                 /*
1613                                  * Failing the TOC read is not an error.
1614                                  */
1615                                 softc->state = CD_STATE_NORMAL;
1616                                 xpt_release_ccb(done_ccb);
1617
1618                                 cdmediaprobedone(periph);
1619
1620                                 /*
1621                                  * Go ahead and schedule I/O execution if
1622                                  * there is anything in the queue.  It'll
1623                                  * probably get kicked out with an error.
1624                                  */
1625                                 if (bioq_first(&softc->bio_queue) != NULL)
1626                                         xpt_schedule(periph,
1627                                             CAM_PRIORITY_NORMAL);
1628                         } else {
1629                                 softc->toc_read_len = num_entries *
1630                                     sizeof(struct cd_toc_entry);
1631                                 softc->toc_read_len += sizeof(*toch);
1632
1633                                 softc->state = CD_STATE_MEDIA_TOC_FULL;
1634                                 xpt_release_ccb(done_ccb);
1635                                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1636                         }
1637
1638                         return;
1639                 } else if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1640                             CD_CCB_MEDIA_TOC_LEAD) {
1641                         struct cd_toc_single *leadout;
1642
1643                         leadout = (struct cd_toc_single *)csio->data_ptr;
1644                         softc->toc.entries[cdindex - toch->starting_track] =
1645                             leadout->entry;
1646                 } else if (((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
1647                             CD_CCB_MEDIA_TOC_FULL)
1648                         && (cdindex == toch->ending_track + 1)) {
1649                         /*
1650                          * XXX KDM is this necessary?  Probably only if the
1651                          * drive doesn't return leadout information with the
1652                          * table of contents.
1653                          */
1654                         softc->state = CD_STATE_MEDIA_TOC_LEAD;
1655                         xpt_release_ccb(done_ccb);
1656                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1657                         return;
1658                 }
1659
1660                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1661                         for (cdindex = 0; cdindex < num_entries - 1; cdindex++){
1662                                 softc->toc.entries[cdindex].track =
1663                                     bcd2bin(softc->toc.entries[cdindex].track);
1664                         }
1665                 }
1666
1667                 softc->flags |= CD_FLAG_VALID_TOC;
1668                 /* If the first track is audio, correct sector size. */
1669                 if ((softc->toc.entries[0].control & 4) == 0) {
1670                         softc->disk->d_sectorsize =softc->params.blksize = 2352;
1671                         softc->disk->d_mediasize =
1672                             (off_t)softc->params.blksize *
1673                             softc->params.disksize;
1674                 }
1675                 softc->state = CD_STATE_NORMAL;
1676
1677                 /*
1678                  * We unconditionally (re)set the blocksize each time the
1679                  * CD device is opened.  This is because the CD can change,
1680                  * and therefore the blocksize might change.
1681                  * XXX problems here if some slice or partition is still
1682                  * open with the old size?
1683                  */
1684                 if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE)!=0)
1685                         softc->disk->d_devstat->flags &=
1686                             ~DEVSTAT_BS_UNAVAILABLE;
1687                 softc->disk->d_devstat->block_size = softc->params.blksize;
1688
1689                 xpt_release_ccb(done_ccb);
1690
1691                 cdmediaprobedone(periph);
1692
1693                 if (bioq_first(&softc->bio_queue) != NULL)
1694                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1695                 return;
1696         }
1697         default:
1698                 break;
1699         }
1700         xpt_release_ccb(done_ccb);
1701 }
1702
1703 static union cd_pages *
1704 cdgetpage(struct cd_mode_params *mode_params)
1705 {
1706         union cd_pages *page;
1707
1708         if (mode_params->cdb_size == 10)
1709                 page = (union cd_pages *)find_mode_page_10(
1710                         (struct scsi_mode_header_10 *)mode_params->mode_buf);
1711         else
1712                 page = (union cd_pages *)find_mode_page_6(
1713                         (struct scsi_mode_header_6 *)mode_params->mode_buf);
1714
1715         return (page);
1716 }
1717
1718 static int
1719 cdgetpagesize(int page_num)
1720 {
1721         u_int i;
1722
1723         for (i = 0; i < nitems(cd_page_size_table); i++) {
1724                 if (cd_page_size_table[i].page == page_num)
1725                         return (cd_page_size_table[i].page_size);
1726         }
1727
1728         return (-1);
1729 }
1730
1731 static struct cd_toc_entry *
1732 te_data_get_ptr(void *irtep, u_long cmd)
1733 {
1734         union {
1735                 struct ioc_read_toc_entry irte;
1736 #ifdef COMPAT_FREEBSD32
1737                 struct ioc_read_toc_entry32 irte32;
1738 #endif
1739         } *irteup;
1740
1741         irteup = irtep;
1742         switch (IOCPARM_LEN(cmd)) {
1743         case sizeof(irteup->irte):
1744                 return (irteup->irte.data);
1745 #ifdef COMPAT_FREEBSD32
1746         case sizeof(irteup->irte32):
1747                 return ((struct cd_toc_entry *)(uintptr_t)irteup->irte32.data);
1748 #endif
1749         default:
1750                 panic("Unhandled ioctl command %ld", cmd);
1751         }
1752 }
1753
1754 static int
1755 cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
1756 {
1757
1758         struct  cam_periph *periph;
1759         struct  cd_softc *softc;
1760         int     error = 0;
1761
1762         periph = (struct cam_periph *)dp->d_drv1;
1763         cam_periph_lock(periph);
1764
1765         softc = (struct cd_softc *)periph->softc;
1766
1767         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1768             ("cdioctl(%#lx)\n", cmd));
1769
1770         if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
1771                 cam_periph_unlock(periph);
1772                 cam_periph_release(periph);
1773                 return (error);
1774         }
1775
1776         /*
1777          * If we don't have media loaded, check for it.  If still don't
1778          * have media loaded, we can only do a load or eject.
1779          *
1780          * We only care whether media is loaded if this is a cd-specific ioctl
1781          * (thus the IOCGROUP check below).  Note that this will break if
1782          * anyone adds any ioctls into the switch statement below that don't
1783          * have their ioctl group set to 'c'.
1784          */
1785         if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1786          && ((cmd != CDIOCCLOSE)
1787           && (cmd != CDIOCEJECT))
1788          && (IOCGROUP(cmd) == 'c')) {
1789                 error = cdcheckmedia(periph, /*do_wait*/ 1);
1790                 if (error != 0) {
1791                         cam_periph_unhold(periph);
1792                         cam_periph_unlock(periph);
1793                         return (error);
1794                 }
1795         }
1796         /*
1797          * Drop the lock here so later mallocs can use WAITOK.  The periph
1798          * is essentially locked still with the cam_periph_hold call above.
1799          */
1800         cam_periph_unlock(periph);
1801
1802         switch (cmd) {
1803         case CDIOCPLAYTRACKS:
1804                 {
1805                         struct ioc_play_track *args
1806                             = (struct ioc_play_track *) addr;
1807                         struct cd_mode_params params;
1808                         union cd_pages *page;
1809
1810                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1811                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1812                                                  M_WAITOK | M_ZERO);
1813
1814                         cam_periph_lock(periph);
1815                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1816                                   ("trying to do CDIOCPLAYTRACKS\n"));
1817
1818                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1819                         if (error) {
1820                                 free(params.mode_buf, M_SCSICD);
1821                                 cam_periph_unlock(periph);
1822                                 break;
1823                         }
1824                         page = cdgetpage(&params);
1825
1826                         page->audio.flags &= ~CD_PA_SOTC;
1827                         page->audio.flags |= CD_PA_IMMED;
1828                         error = cdsetmode(periph, &params);
1829                         free(params.mode_buf, M_SCSICD);
1830                         if (error) {
1831                                 cam_periph_unlock(periph);
1832                                 break;
1833                         }
1834
1835                         /*
1836                          * This was originally implemented with the PLAY
1837                          * AUDIO TRACK INDEX command, but that command was
1838                          * deprecated after SCSI-2.  Most (all?) SCSI CDROM
1839                          * drives support it but ATAPI and ATAPI-derivative
1840                          * drives don't seem to support it.  So we keep a
1841                          * cache of the table of contents and translate
1842                          * track numbers to MSF format.
1843                          */
1844                         if (softc->flags & CD_FLAG_VALID_TOC) {
1845                                 union msf_lba *sentry, *eentry;
1846                                 struct ioc_toc_header *th;
1847                                 int st, et;
1848
1849                                 th = &softc->toc.header;
1850                                 if (args->end_track < th->ending_track + 1)
1851                                         args->end_track++;
1852                                 if (args->end_track > th->ending_track + 1)
1853                                         args->end_track = th->ending_track + 1;
1854                                 st = args->start_track - th->starting_track;
1855                                 et = args->end_track - th->starting_track;
1856                                 if (st < 0 || et < 0 ||
1857                                     st > th->ending_track - th->starting_track ||
1858                                     et > th->ending_track - th->starting_track) {
1859                                         error = EINVAL;
1860                                         cam_periph_unlock(periph);
1861                                         break;
1862                                 }
1863                                 sentry = &softc->toc.entries[st].addr;
1864                                 eentry = &softc->toc.entries[et].addr;
1865                                 error = cdplaymsf(periph,
1866                                                   sentry->msf.minute,
1867                                                   sentry->msf.second,
1868                                                   sentry->msf.frame,
1869                                                   eentry->msf.minute,
1870                                                   eentry->msf.second,
1871                                                   eentry->msf.frame);
1872                         } else {
1873                                 /*
1874                                  * If we don't have a valid TOC, try the
1875                                  * play track index command.  It is part of
1876                                  * the SCSI-2 spec, but was removed in the
1877                                  * MMC specs.  ATAPI and ATAPI-derived
1878                                  * drives don't support it.
1879                                  */
1880                                 if (softc->quirks & CD_Q_BCD_TRACKS) {
1881                                         args->start_track =
1882                                                 bin2bcd(args->start_track);
1883                                         args->end_track =
1884                                                 bin2bcd(args->end_track);
1885                                 }
1886                                 error = cdplaytracks(periph,
1887                                                      args->start_track,
1888                                                      args->start_index,
1889                                                      args->end_track,
1890                                                      args->end_index);
1891                         }
1892                         cam_periph_unlock(periph);
1893                 }
1894                 break;
1895         case CDIOCPLAYMSF:
1896                 {
1897                         struct ioc_play_msf *args
1898                                 = (struct ioc_play_msf *) addr;
1899                         struct cd_mode_params params;
1900                         union cd_pages *page;
1901
1902                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1903                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1904                                                  M_WAITOK | M_ZERO);
1905
1906                         cam_periph_lock(periph);
1907                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1908                                   ("trying to do CDIOCPLAYMSF\n"));
1909
1910                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1911                         if (error) {
1912                                 free(params.mode_buf, M_SCSICD);
1913                                 cam_periph_unlock(periph);
1914                                 break;
1915                         }
1916                         page = cdgetpage(&params);
1917
1918                         page->audio.flags &= ~CD_PA_SOTC;
1919                         page->audio.flags |= CD_PA_IMMED;
1920                         error = cdsetmode(periph, &params);
1921                         free(params.mode_buf, M_SCSICD);
1922                         if (error) {
1923                                 cam_periph_unlock(periph);
1924                                 break;
1925                         }
1926                         error = cdplaymsf(periph,
1927                                           args->start_m,
1928                                           args->start_s,
1929                                           args->start_f,
1930                                           args->end_m,
1931                                           args->end_s,
1932                                           args->end_f);
1933                         cam_periph_unlock(periph);
1934                 }
1935                 break;
1936         case CDIOCPLAYBLOCKS:
1937                 {
1938                         struct ioc_play_blocks *args
1939                                 = (struct ioc_play_blocks *) addr;
1940                         struct cd_mode_params params;
1941                         union cd_pages *page;
1942
1943                         params.alloc_len = sizeof(union cd_mode_data_6_10);
1944                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
1945                                                  M_WAITOK | M_ZERO);
1946
1947                         cam_periph_lock(periph);
1948                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1949                                   ("trying to do CDIOCPLAYBLOCKS\n"));
1950
1951                         error = cdgetmode(periph, &params, AUDIO_PAGE);
1952                         if (error) {
1953                                 free(params.mode_buf, M_SCSICD);
1954                                 cam_periph_unlock(periph);
1955                                 break;
1956                         }
1957                         page = cdgetpage(&params);
1958
1959                         page->audio.flags &= ~CD_PA_SOTC;
1960                         page->audio.flags |= CD_PA_IMMED;
1961                         error = cdsetmode(periph, &params);
1962                         free(params.mode_buf, M_SCSICD);
1963                         if (error) {
1964                                 cam_periph_unlock(periph);
1965                                 break;
1966                         }
1967                         error = cdplay(periph, args->blk, args->len);
1968                         cam_periph_unlock(periph);
1969                 }
1970                 break;
1971         case CDIOCREADSUBCHANNEL:
1972                 {
1973                         struct ioc_read_subchannel *args
1974                                 = (struct ioc_read_subchannel *) addr;
1975                         struct cd_sub_channel_info *data;
1976                         u_int32_t len = args->data_len;
1977
1978                         data = malloc(sizeof(struct cd_sub_channel_info),
1979                                       M_SCSICD, M_WAITOK | M_ZERO);
1980
1981                         cam_periph_lock(periph);
1982                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1983                                   ("trying to do CDIOCREADSUBCHANNEL\n"));
1984
1985                         if ((len > sizeof(struct cd_sub_channel_info)) ||
1986                             (len < sizeof(struct cd_sub_channel_header))) {
1987                                 printf(
1988                                         "scsi_cd: cdioctl: "
1989                                         "cdioreadsubchannel: error, len=%d\n",
1990                                         len);
1991                                 error = EINVAL;
1992                                 free(data, M_SCSICD);
1993                                 cam_periph_unlock(periph);
1994                                 break;
1995                         }
1996
1997                         if (softc->quirks & CD_Q_BCD_TRACKS)
1998                                 args->track = bin2bcd(args->track);
1999
2000                         error = cdreadsubchannel(periph, args->address_format,
2001                                 args->data_format, args->track, data, len);
2002
2003                         if (error) {
2004                                 free(data, M_SCSICD);
2005                                 cam_periph_unlock(periph);
2006                                 break;
2007                         }
2008                         if (softc->quirks & CD_Q_BCD_TRACKS)
2009                                 data->what.track_info.track_number =
2010                                     bcd2bin(data->what.track_info.track_number);
2011                         len = min(len, ((data->header.data_len[0] << 8) +
2012                                 data->header.data_len[1] +
2013                                 sizeof(struct cd_sub_channel_header)));
2014                         cam_periph_unlock(periph);
2015                         error = copyout(data, args->data, len);
2016                         free(data, M_SCSICD);
2017                 }
2018                 break;
2019
2020         case CDIOREADTOCHEADER:
2021                 {
2022                         struct ioc_toc_header *th;
2023
2024                         th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
2025                                     M_WAITOK | M_ZERO);
2026
2027                         cam_periph_lock(periph);
2028                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2029                                   ("trying to do CDIOREADTOCHEADER\n"));
2030
2031                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2032                                           sizeof (*th), /*sense_flags*/SF_NO_PRINT);
2033                         if (error) {
2034                                 free(th, M_SCSICD);
2035                                 cam_periph_unlock(periph);
2036                                 break;
2037                         }
2038                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2039                                 /* we are going to have to convert the BCD
2040                                  * encoding on the cd to what is expected
2041                                  */
2042                                 th->starting_track =
2043                                         bcd2bin(th->starting_track);
2044                                 th->ending_track = bcd2bin(th->ending_track);
2045                         }
2046                         th->len = ntohs(th->len);
2047                         bcopy(th, addr, sizeof(*th));
2048                         free(th, M_SCSICD);
2049                         cam_periph_unlock(periph);
2050                 }
2051                 break;
2052         case CDIOREADTOCENTRYS:
2053 #ifdef COMPAT_FREEBSD32
2054         case CDIOREADTOCENTRYS_32:
2055 #endif
2056                 {
2057                         struct cd_tocdata *data;
2058                         struct cd_toc_single *lead;
2059                         struct ioc_read_toc_entry *te =
2060                                 (struct ioc_read_toc_entry *) addr;
2061                         struct ioc_toc_header *th;
2062                         u_int32_t len, readlen, idx, num;
2063                         u_int32_t starting_track = te->starting_track;
2064
2065                         data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2066                         lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO);
2067
2068                         cam_periph_lock(periph);
2069                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2070                                   ("trying to do CDIOREADTOCENTRYS\n"));
2071
2072                         if (te->data_len < sizeof(struct cd_toc_entry)
2073                          || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2074                          || (te->address_format != CD_MSF_FORMAT
2075                           && te->address_format != CD_LBA_FORMAT)) {
2076                                 error = EINVAL;
2077                                 printf("scsi_cd: error in readtocentries, "
2078                                        "returning EINVAL\n");
2079                                 free(data, M_SCSICD);
2080                                 free(lead, M_SCSICD);
2081                                 cam_periph_unlock(periph);
2082                                 break;
2083                         }
2084
2085                         th = &data->header;
2086                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2087                                           sizeof (*th), /*sense_flags*/0);
2088                         if (error) {
2089                                 free(data, M_SCSICD);
2090                                 free(lead, M_SCSICD);
2091                                 cam_periph_unlock(periph);
2092                                 break;
2093                         }
2094
2095                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2096                                 /* we are going to have to convert the BCD
2097                                  * encoding on the cd to what is expected
2098                                  */
2099                                 th->starting_track =
2100                                     bcd2bin(th->starting_track);
2101                                 th->ending_track = bcd2bin(th->ending_track);
2102                         }
2103
2104                         if (starting_track == 0)
2105                                 starting_track = th->starting_track;
2106                         else if (starting_track == LEADOUT)
2107                                 starting_track = th->ending_track + 1;
2108                         else if (starting_track < th->starting_track ||
2109                                  starting_track > th->ending_track + 1) {
2110                                 printf("scsi_cd: error in readtocentries, "
2111                                        "returning EINVAL\n");
2112                                 free(data, M_SCSICD);
2113                                 free(lead, M_SCSICD);
2114                                 cam_periph_unlock(periph);
2115                                 error = EINVAL;
2116                                 break;
2117                         }
2118
2119                         /* calculate reading length without leadout entry */
2120                         readlen = (th->ending_track - starting_track + 1) *
2121                                   sizeof(struct cd_toc_entry);
2122
2123                         /* and with leadout entry */
2124                         len = readlen + sizeof(struct cd_toc_entry);
2125                         if (te->data_len < len) {
2126                                 len = te->data_len;
2127                                 if (readlen > len)
2128                                         readlen = len;
2129                         }
2130                         if (len > sizeof(data->entries)) {
2131                                 printf("scsi_cd: error in readtocentries, "
2132                                        "returning EINVAL\n");
2133                                 error = EINVAL;
2134                                 free(data, M_SCSICD);
2135                                 free(lead, M_SCSICD);
2136                                 cam_periph_unlock(periph);
2137                                 break;
2138                         }
2139                         num = len / sizeof(struct cd_toc_entry);
2140
2141                         if (readlen > 0) {
2142                                 error = cdreadtoc(periph, te->address_format,
2143                                                   starting_track,
2144                                                   (u_int8_t *)data,
2145                                                   readlen + sizeof (*th),
2146                                                   /*sense_flags*/0);
2147                                 if (error) {
2148                                         free(data, M_SCSICD);
2149                                         free(lead, M_SCSICD);
2150                                         cam_periph_unlock(periph);
2151                                         break;
2152                                 }
2153                         }
2154
2155                         /* make leadout entry if needed */
2156                         idx = starting_track + num - 1;
2157                         if (softc->quirks & CD_Q_BCD_TRACKS)
2158                                 th->ending_track = bcd2bin(th->ending_track);
2159                         if (idx == th->ending_track + 1) {
2160                                 error = cdreadtoc(periph, te->address_format,
2161                                                   LEADOUT, (u_int8_t *)lead,
2162                                                   sizeof(*lead),
2163                                                   /*sense_flags*/0);
2164                                 if (error) {
2165                                         free(data, M_SCSICD);
2166                                         free(lead, M_SCSICD);
2167                                         cam_periph_unlock(periph);
2168                                         break;
2169                                 }
2170                                 data->entries[idx - starting_track] =
2171                                         lead->entry;
2172                         }
2173                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2174                                 for (idx = 0; idx < num - 1; idx++) {
2175                                         data->entries[idx].track =
2176                                             bcd2bin(data->entries[idx].track);
2177                                 }
2178                         }
2179
2180                         cam_periph_unlock(periph);
2181                         error = copyout(data->entries, te_data_get_ptr(te, cmd),
2182                             len);
2183                         free(data, M_SCSICD);
2184                         free(lead, M_SCSICD);
2185                 }
2186                 break;
2187         case CDIOREADTOCENTRY:
2188                 {
2189                         struct cd_toc_single *data;
2190                         struct ioc_read_toc_single_entry *te =
2191                                 (struct ioc_read_toc_single_entry *) addr;
2192                         struct ioc_toc_header *th;
2193                         u_int32_t track;
2194
2195                         data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
2196
2197                         cam_periph_lock(periph);
2198                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2199                                   ("trying to do CDIOREADTOCENTRY\n"));
2200
2201                         if (te->address_format != CD_MSF_FORMAT
2202                             && te->address_format != CD_LBA_FORMAT) {
2203                                 printf("error in readtocentry, "
2204                                        " returning EINVAL\n");
2205                                 free(data, M_SCSICD);
2206                                 error = EINVAL;
2207                                 cam_periph_unlock(periph);
2208                                 break;
2209                         }
2210
2211                         th = &data->header;
2212                         error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2213                                           sizeof (*th), /*sense_flags*/0);
2214                         if (error) {
2215                                 free(data, M_SCSICD);
2216                                 cam_periph_unlock(periph);
2217                                 break;
2218                         }
2219
2220                         if (softc->quirks & CD_Q_BCD_TRACKS) {
2221                                 /* we are going to have to convert the BCD
2222                                  * encoding on the cd to what is expected
2223                                  */
2224                                 th->starting_track =
2225                                     bcd2bin(th->starting_track);
2226                                 th->ending_track = bcd2bin(th->ending_track);
2227                         }
2228                         track = te->track;
2229                         if (track == 0)
2230                                 track = th->starting_track;
2231                         else if (track == LEADOUT)
2232                                 /* OK */;
2233                         else if (track < th->starting_track ||
2234                                  track > th->ending_track + 1) {
2235                                 printf("error in readtocentry, "
2236                                        " returning EINVAL\n");
2237                                 free(data, M_SCSICD);
2238                                 error = EINVAL;
2239                                 cam_periph_unlock(periph);
2240                                 break;
2241                         }
2242
2243                         error = cdreadtoc(periph, te->address_format, track,
2244                                           (u_int8_t *)data, sizeof(*data),
2245                                           /*sense_flags*/0);
2246                         if (error) {
2247                                 free(data, M_SCSICD);
2248                                 cam_periph_unlock(periph);
2249                                 break;
2250                         }
2251
2252                         if (softc->quirks & CD_Q_BCD_TRACKS)
2253                                 data->entry.track = bcd2bin(data->entry.track);
2254                         bcopy(&data->entry, &te->entry,
2255                               sizeof(struct cd_toc_entry));
2256                         free(data, M_SCSICD);
2257                         cam_periph_unlock(periph);
2258                 }
2259                 break;
2260         case CDIOCSETPATCH:
2261                 {
2262                         struct ioc_patch *arg = (struct ioc_patch *)addr;
2263                         struct cd_mode_params params;
2264                         union cd_pages *page;
2265
2266                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2267                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2268                                                  M_WAITOK | M_ZERO);
2269
2270                         cam_periph_lock(periph);
2271                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2272                                   ("trying to do CDIOCSETPATCH\n"));
2273
2274                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2275                         if (error) {
2276                                 free(params.mode_buf, M_SCSICD);
2277                                 cam_periph_unlock(periph);
2278                                 break;
2279                         }
2280                         page = cdgetpage(&params);
2281
2282                         page->audio.port[LEFT_PORT].channels =
2283                                 arg->patch[0];
2284                         page->audio.port[RIGHT_PORT].channels =
2285                                 arg->patch[1];
2286                         page->audio.port[2].channels = arg->patch[2];
2287                         page->audio.port[3].channels = arg->patch[3];
2288                         error = cdsetmode(periph, &params);
2289                         free(params.mode_buf, M_SCSICD);
2290                         cam_periph_unlock(periph);
2291                 }
2292                 break;
2293         case CDIOCGETVOL:
2294                 {
2295                         struct ioc_vol *arg = (struct ioc_vol *) addr;
2296                         struct cd_mode_params params;
2297                         union cd_pages *page;
2298
2299                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2300                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2301                                                  M_WAITOK | M_ZERO);
2302
2303                         cam_periph_lock(periph);
2304                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2305                                   ("trying to do CDIOCGETVOL\n"));
2306
2307                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2308                         if (error) {
2309                                 free(params.mode_buf, M_SCSICD);
2310                                 cam_periph_unlock(periph);
2311                                 break;
2312                         }
2313                         page = cdgetpage(&params);
2314
2315                         arg->vol[LEFT_PORT] =
2316                                 page->audio.port[LEFT_PORT].volume;
2317                         arg->vol[RIGHT_PORT] =
2318                                 page->audio.port[RIGHT_PORT].volume;
2319                         arg->vol[2] = page->audio.port[2].volume;
2320                         arg->vol[3] = page->audio.port[3].volume;
2321                         free(params.mode_buf, M_SCSICD);
2322                         cam_periph_unlock(periph);
2323                 }
2324                 break;
2325         case CDIOCSETVOL:
2326                 {
2327                         struct ioc_vol *arg = (struct ioc_vol *) addr;
2328                         struct cd_mode_params params;
2329                         union cd_pages *page;
2330
2331                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2332                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2333                                                  M_WAITOK | M_ZERO);
2334
2335                         cam_periph_lock(periph);
2336                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2337                                   ("trying to do CDIOCSETVOL\n"));
2338
2339                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2340                         if (error) {
2341                                 free(params.mode_buf, M_SCSICD);
2342                                 cam_periph_unlock(periph);
2343                                 break;
2344                         }
2345                         page = cdgetpage(&params);
2346
2347                         page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2348                         page->audio.port[LEFT_PORT].volume =
2349                                 arg->vol[LEFT_PORT];
2350                         page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2351                         page->audio.port[RIGHT_PORT].volume =
2352                                 arg->vol[RIGHT_PORT];
2353                         page->audio.port[2].volume = arg->vol[2];
2354                         page->audio.port[3].volume = arg->vol[3];
2355                         error = cdsetmode(periph, &params);
2356                         cam_periph_unlock(periph);
2357                         free(params.mode_buf, M_SCSICD);
2358                 }
2359                 break;
2360         case CDIOCSETMONO:
2361                 {
2362                         struct cd_mode_params params;
2363                         union cd_pages *page;
2364
2365                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2366                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2367                                                  M_WAITOK | M_ZERO);
2368
2369                         cam_periph_lock(periph);
2370                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2371                                   ("trying to do CDIOCSETMONO\n"));
2372
2373                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2374                         if (error) {
2375                                 free(params.mode_buf, M_SCSICD);
2376                                 cam_periph_unlock(periph);
2377                                 break;
2378                         }
2379                         page = cdgetpage(&params);
2380
2381                         page->audio.port[LEFT_PORT].channels =
2382                                 LEFT_CHANNEL | RIGHT_CHANNEL;
2383                         page->audio.port[RIGHT_PORT].channels =
2384                                 LEFT_CHANNEL | RIGHT_CHANNEL;
2385                         page->audio.port[2].channels = 0;
2386                         page->audio.port[3].channels = 0;
2387                         error = cdsetmode(periph, &params);
2388                         cam_periph_unlock(periph);
2389                         free(params.mode_buf, M_SCSICD);
2390                 }
2391                 break;
2392         case CDIOCSETSTEREO:
2393                 {
2394                         struct cd_mode_params params;
2395                         union cd_pages *page;
2396
2397                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2398                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2399                                                  M_WAITOK | M_ZERO);
2400
2401                         cam_periph_lock(periph);
2402                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2403                                   ("trying to do CDIOCSETSTEREO\n"));
2404
2405                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2406                         if (error) {
2407                                 free(params.mode_buf, M_SCSICD);
2408                                 cam_periph_unlock(periph);
2409                                 break;
2410                         }
2411                         page = cdgetpage(&params);
2412
2413                         page->audio.port[LEFT_PORT].channels =
2414                                 LEFT_CHANNEL;
2415                         page->audio.port[RIGHT_PORT].channels =
2416                                 RIGHT_CHANNEL;
2417                         page->audio.port[2].channels = 0;
2418                         page->audio.port[3].channels = 0;
2419                         error = cdsetmode(periph, &params);
2420                         free(params.mode_buf, M_SCSICD);
2421                         cam_periph_unlock(periph);
2422                 }
2423                 break;
2424         case CDIOCSETMUTE:
2425                 {
2426                         struct cd_mode_params params;
2427                         union cd_pages *page;
2428
2429                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2430                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2431                                                  M_WAITOK | M_ZERO);
2432
2433                         cam_periph_lock(periph);
2434                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2435                                   ("trying to do CDIOCSETMUTE\n"));
2436
2437                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2438                         if (error) {
2439                                 free(params.mode_buf, M_SCSICD);
2440                                 cam_periph_unlock(periph);
2441                                 break;
2442                         }
2443                         page = cdgetpage(&params);
2444
2445                         page->audio.port[LEFT_PORT].channels = 0;
2446                         page->audio.port[RIGHT_PORT].channels = 0;
2447                         page->audio.port[2].channels = 0;
2448                         page->audio.port[3].channels = 0;
2449                         error = cdsetmode(periph, &params);
2450                         free(params.mode_buf, M_SCSICD);
2451                         cam_periph_unlock(periph);
2452                 }
2453                 break;
2454         case CDIOCSETLEFT:
2455                 {
2456                         struct cd_mode_params params;
2457                         union cd_pages *page;
2458
2459                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2460                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2461                                                  M_WAITOK | M_ZERO);
2462
2463                         cam_periph_lock(periph);
2464                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2465                                   ("trying to do CDIOCSETLEFT\n"));
2466
2467                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2468                         if (error) {
2469                                 free(params.mode_buf, M_SCSICD);
2470                                 cam_periph_unlock(periph);
2471                                 break;
2472                         }
2473                         page = cdgetpage(&params);
2474
2475                         page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2476                         page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2477                         page->audio.port[2].channels = 0;
2478                         page->audio.port[3].channels = 0;
2479                         error = cdsetmode(periph, &params);
2480                         free(params.mode_buf, M_SCSICD);
2481                         cam_periph_unlock(periph);
2482                 }
2483                 break;
2484         case CDIOCSETRIGHT:
2485                 {
2486                         struct cd_mode_params params;
2487                         union cd_pages *page;
2488
2489                         params.alloc_len = sizeof(union cd_mode_data_6_10);
2490                         params.mode_buf = malloc(params.alloc_len, M_SCSICD,
2491                                                  M_WAITOK | M_ZERO);
2492
2493                         cam_periph_lock(periph);
2494                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2495                                   ("trying to do CDIOCSETRIGHT\n"));
2496
2497                         error = cdgetmode(periph, &params, AUDIO_PAGE);
2498                         if (error) {
2499                                 free(params.mode_buf, M_SCSICD);
2500                                 cam_periph_unlock(periph);
2501                                 break;
2502                         }
2503                         page = cdgetpage(&params);
2504
2505                         page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2506                         page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2507                         page->audio.port[2].channels = 0;
2508                         page->audio.port[3].channels = 0;
2509                         error = cdsetmode(periph, &params);
2510                         free(params.mode_buf, M_SCSICD);
2511                         cam_periph_unlock(periph);
2512                 }
2513                 break;
2514         case CDIOCRESUME:
2515                 cam_periph_lock(periph);
2516                 error = cdpause(periph, 1);
2517                 cam_periph_unlock(periph);
2518                 break;
2519         case CDIOCPAUSE:
2520                 cam_periph_lock(periph);
2521                 error = cdpause(periph, 0);
2522                 cam_periph_unlock(periph);
2523                 break;
2524         case CDIOCSTART:
2525                 cam_periph_lock(periph);
2526                 error = cdstartunit(periph, 0);
2527                 cam_periph_unlock(periph);
2528                 break;
2529         case CDIOCCLOSE:
2530                 cam_periph_lock(periph);
2531                 error = cdstartunit(periph, 1);
2532                 cam_periph_unlock(periph);
2533                 break;
2534         case CDIOCSTOP:
2535                 cam_periph_lock(periph);
2536                 error = cdstopunit(periph, 0);
2537                 cam_periph_unlock(periph);
2538                 break;
2539         case CDIOCEJECT:
2540                 cam_periph_lock(periph);
2541                 error = cdstopunit(periph, 1);
2542                 cam_periph_unlock(periph);
2543                 break;
2544         case CDIOCALLOW:
2545                 cam_periph_lock(periph);
2546                 cdprevent(periph, PR_ALLOW);
2547                 cam_periph_unlock(periph);
2548                 break;
2549         case CDIOCPREVENT:
2550                 cam_periph_lock(periph);
2551                 cdprevent(periph, PR_PREVENT);
2552                 cam_periph_unlock(periph);
2553                 break;
2554         case CDIOCSETDEBUG:
2555                 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2556                 error = ENOTTY;
2557                 break;
2558         case CDIOCCLRDEBUG:
2559                 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2560                 error = ENOTTY;
2561                 break;
2562         case CDIOCRESET:
2563                 /* return (cd_reset(periph)); */
2564                 error = ENOTTY;
2565                 break;
2566         case CDRIOCREADSPEED:
2567                 cam_periph_lock(periph);
2568                 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2569                 cam_periph_unlock(periph);
2570                 break;
2571         case CDRIOCWRITESPEED:
2572                 cam_periph_lock(periph);
2573                 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2574                 cam_periph_unlock(periph);
2575                 break;
2576         case CDRIOCGETBLOCKSIZE:
2577                 *(int *)addr = softc->params.blksize;
2578                 break;
2579         case CDRIOCSETBLOCKSIZE:
2580                 if (*(int *)addr <= 0) {
2581                         error = EINVAL;
2582                         break;
2583                 }
2584                 softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr;
2585                 break;
2586         case DVDIOCSENDKEY:
2587         case DVDIOCREPORTKEY: {
2588                 struct dvd_authinfo *authinfo;
2589
2590                 authinfo = (struct dvd_authinfo *)addr;
2591
2592                 if (cmd == DVDIOCREPORTKEY)
2593                         error = cdreportkey(periph, authinfo);
2594                 else
2595                         error = cdsendkey(periph, authinfo);
2596                 break;
2597                 }
2598         case DVDIOCREADSTRUCTURE: {
2599                 struct dvd_struct *dvdstruct;
2600
2601                 dvdstruct = (struct dvd_struct *)addr;
2602
2603                 error = cdreaddvdstructure(periph, dvdstruct);
2604
2605                 break;
2606         }
2607         default:
2608                 cam_periph_lock(periph);
2609                 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2610                 cam_periph_unlock(periph);
2611                 break;
2612         }
2613
2614         cam_periph_lock(periph);
2615         cam_periph_unhold(periph);
2616
2617         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2618         if (error && bootverbose) {
2619                 printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
2620         }
2621         cam_periph_unlock(periph);
2622
2623         return (error);
2624 }
2625
2626 static void
2627 cdprevent(struct cam_periph *periph, int action)
2628 {
2629         union   ccb *ccb;
2630         struct  cd_softc *softc;
2631         int     error;
2632
2633         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2634
2635         cam_periph_assert(periph, MA_OWNED);
2636         softc = (struct cd_softc *)periph->softc;
2637
2638         if (((action == PR_ALLOW)
2639           && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2640          || ((action == PR_PREVENT)
2641           && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2642                 return;
2643         }
2644
2645         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2646
2647         scsi_prevent(&ccb->csio,
2648                      /*retries*/ cd_retry_count,
2649                      /*cbfcnp*/NULL,
2650                      MSG_SIMPLE_Q_TAG,
2651                      action,
2652                      SSD_FULL_SIZE,
2653                      /* timeout */60000);
2654
2655         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2656                         /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2657
2658         xpt_release_ccb(ccb);
2659
2660         if (error == 0) {
2661                 if (action == PR_ALLOW)
2662                         softc->flags &= ~CD_FLAG_DISC_LOCKED;
2663                 else
2664                         softc->flags |= CD_FLAG_DISC_LOCKED;
2665         }
2666 }
2667
2668 static void
2669 cdmediaprobedone(struct cam_periph *periph)
2670 {
2671         struct cd_softc *softc;
2672
2673         cam_periph_assert(periph, MA_OWNED);
2674         softc = (struct cd_softc *)periph->softc;
2675
2676         softc->flags &= ~CD_FLAG_MEDIA_SCAN_ACT;
2677
2678         if ((softc->flags & CD_FLAG_MEDIA_WAIT) != 0) {
2679                 softc->flags &= ~CD_FLAG_MEDIA_WAIT;
2680                 wakeup(&softc->toc);
2681         }
2682 }
2683
2684 /*
2685  * XXX: the disk media and sector size is only really able to change
2686  * XXX: while the device is closed.
2687  */
2688
2689 static int
2690 cdcheckmedia(struct cam_periph *periph, int do_wait)
2691 {
2692         struct cd_softc *softc;
2693         int error;
2694
2695         cam_periph_assert(periph, MA_OWNED);
2696         softc = (struct cd_softc *)periph->softc;
2697         error = 0;
2698
2699         if ((do_wait != 0)
2700          && ((softc->flags & CD_FLAG_MEDIA_WAIT) == 0)) {
2701                 softc->flags |= CD_FLAG_MEDIA_WAIT;
2702         }
2703         if ((softc->flags & CD_FLAG_MEDIA_SCAN_ACT) == 0) {
2704                 softc->state = CD_STATE_MEDIA_PREVENT;
2705                 softc->flags |= CD_FLAG_MEDIA_SCAN_ACT;
2706                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2707         }
2708
2709         if (do_wait == 0)
2710                 goto bailout;
2711
2712         error = msleep(&softc->toc, cam_periph_mtx(periph), PRIBIO,"cdmedia",0);
2713
2714         if (error != 0)
2715                 goto bailout;
2716
2717         /*
2718          * Check to see whether we have a valid size from the media.  We
2719          * may or may not have a valid TOC.
2720          */
2721         if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
2722                 error = EINVAL;
2723 bailout:
2724
2725         return (error);
2726 }
2727
2728 #if 0
2729 static int
2730 cdcheckmedia(struct cam_periph *periph)
2731 {
2732         struct cd_softc *softc;
2733         struct ioc_toc_header *toch;
2734         struct cd_toc_single leadout;
2735         u_int32_t size, toclen;
2736         int error, num_entries, cdindex;
2737
2738         softc = (struct cd_softc *)periph->softc;
2739
2740         cdprevent(periph, PR_PREVENT);
2741         softc->disk->d_sectorsize = 2048;
2742         softc->disk->d_mediasize = 0;
2743
2744         /*
2745          * Get the disc size and block size.  If we can't get it, we don't
2746          * have media, most likely.
2747          */
2748         if ((error = cdsize(periph, &size)) != 0) {
2749                 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2750                 cdprevent(periph, PR_ALLOW);
2751                 return (error);
2752         } else {
2753                 softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
2754                 softc->disk->d_sectorsize = softc->params.blksize;
2755                 softc->disk->d_mediasize =
2756                     (off_t)softc->params.blksize * softc->params.disksize;
2757         }
2758
2759         /*
2760          * Now we check the table of contents.  This (currently) is only
2761          * used for the CDIOCPLAYTRACKS ioctl.  It may be used later to do
2762          * things like present a separate entry in /dev for each track,
2763          * like that acd(4) driver does.
2764          */
2765         bzero(&softc->toc, sizeof(softc->toc));
2766         toch = &softc->toc.header;
2767         /*
2768          * We will get errors here for media that doesn't have a table of
2769          * contents.  According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2770          * command is presented for a DDCD/CD-R/RW media, where the first TOC
2771          * has not been recorded (no complete session) and the Format codes
2772          * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2773          * with an INVALID FIELD IN CDB.  Devices that are not capable of
2774          * reading an incomplete session on DDC/CD-R/RW media shall report
2775          * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2776          *
2777          * So this isn't fatal if we can't read the table of contents, it
2778          * just means that the user won't be able to issue the play tracks
2779          * ioctl, and likely lots of other stuff won't work either.  They
2780          * need to burn the CD before we can do a whole lot with it.  So
2781          * we don't print anything here if we get an error back.
2782          */
2783         error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2784                           SF_NO_PRINT);
2785         /*
2786          * Errors in reading the table of contents aren't fatal, we just
2787          * won't have a valid table of contents cached.
2788          */
2789         if (error != 0) {
2790                 error = 0;
2791                 bzero(&softc->toc, sizeof(softc->toc));
2792                 goto bailout;
2793         }
2794
2795         if (softc->quirks & CD_Q_BCD_TRACKS) {
2796                 toch->starting_track = bcd2bin(toch->starting_track);
2797                 toch->ending_track = bcd2bin(toch->ending_track);
2798         }
2799
2800         /* Number of TOC entries, plus leadout */
2801         num_entries = (toch->ending_track - toch->starting_track) + 2;
2802
2803         if (num_entries <= 0)
2804                 goto bailout;
2805
2806         toclen = num_entries * sizeof(struct cd_toc_entry);
2807
2808         error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2809                           (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2810                           SF_NO_PRINT);
2811         if (error != 0) {
2812                 error = 0;
2813                 bzero(&softc->toc, sizeof(softc->toc));
2814                 goto bailout;
2815         }
2816
2817         if (softc->quirks & CD_Q_BCD_TRACKS) {
2818                 toch->starting_track = bcd2bin(toch->starting_track);
2819                 toch->ending_track = bcd2bin(toch->ending_track);
2820         }
2821         /*
2822          * XXX KDM is this necessary?  Probably only if the drive doesn't
2823          * return leadout information with the table of contents.
2824          */
2825         cdindex = toch->starting_track + num_entries -1;
2826         if (cdindex == toch->ending_track + 1) {
2827                 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2828                                   (u_int8_t *)&leadout, sizeof(leadout),
2829                                   SF_NO_PRINT);
2830                 if (error != 0) {
2831                         error = 0;
2832                         goto bailout;
2833                 }
2834                 softc->toc.entries[cdindex - toch->starting_track] =
2835                         leadout.entry;
2836         }
2837         if (softc->quirks & CD_Q_BCD_TRACKS) {
2838                 for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
2839                         softc->toc.entries[cdindex].track =
2840                                 bcd2bin(softc->toc.entries[cdindex].track);
2841                 }
2842         }
2843
2844         softc->flags |= CD_FLAG_VALID_TOC;
2845
2846         /* If the first track is audio, correct sector size. */
2847         if ((softc->toc.entries[0].control & 4) == 0) {
2848                 softc->disk->d_sectorsize = softc->params.blksize = 2352;
2849                 softc->disk->d_mediasize =
2850                     (off_t)softc->params.blksize * softc->params.disksize;
2851         }
2852
2853 bailout:
2854
2855         /*
2856          * We unconditionally (re)set the blocksize each time the
2857          * CD device is opened.  This is because the CD can change,
2858          * and therefore the blocksize might change.
2859          * XXX problems here if some slice or partition is still
2860          * open with the old size?
2861          */
2862         if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2863                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2864         softc->disk->d_devstat->block_size = softc->params.blksize;
2865
2866         return (error);
2867 }
2868
2869 static int
2870 cdsize(struct cam_periph *periph, u_int32_t *size)
2871 {
2872         struct cd_softc *softc;
2873         union ccb *ccb;
2874         struct scsi_read_capacity_data *rcap_buf;
2875         int error;
2876
2877         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
2878
2879         softc = (struct cd_softc *)periph->softc;
2880
2881         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2882
2883         /* XXX Should be M_WAITOK */
2884         rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
2885                           M_SCSICD, M_NOWAIT | M_ZERO);
2886         if (rcap_buf == NULL)
2887                 return (ENOMEM);
2888
2889         scsi_read_capacity(&ccb->csio,
2890                            /*retries*/ cd_retry_count,
2891                            /*cbfcnp*/NULL,
2892                            MSG_SIMPLE_Q_TAG,
2893                            rcap_buf,
2894                            SSD_FULL_SIZE,
2895                            /* timeout */20000);
2896
2897         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
2898                          /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
2899
2900         xpt_release_ccb(ccb);
2901
2902         softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
2903         softc->params.blksize  = scsi_4btoul(rcap_buf->length);
2904         /* Make sure we got at least some block size. */
2905         if (error == 0 && softc->params.blksize == 0)
2906                 error = EIO;
2907         /*
2908          * SCSI-3 mandates that the reported blocksize shall be 2048.
2909          * Older drives sometimes report funny values, trim it down to
2910          * 2048, or other parts of the kernel will get confused.
2911          *
2912          * XXX we leave drives alone that might report 512 bytes, as
2913          * well as drives reporting more weird sizes like perhaps 4K.
2914          */
2915         if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
2916                 softc->params.blksize = 2048;
2917
2918         free(rcap_buf, M_SCSICD);
2919         *size = softc->params.disksize;
2920
2921         return (error);
2922
2923 }
2924 #endif
2925
2926 static int
2927 cd6byteworkaround(union ccb *ccb)
2928 {
2929         u_int8_t *cdb;
2930         struct cam_periph *periph;
2931         struct cd_softc *softc;
2932         struct cd_mode_params *params;
2933         int frozen, found;
2934
2935         periph = xpt_path_periph(ccb->ccb_h.path);
2936         softc = (struct cd_softc *)periph->softc;
2937
2938         cdb = ccb->csio.cdb_io.cdb_bytes;
2939
2940         if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
2941          || ((cdb[0] != MODE_SENSE_6)
2942           && (cdb[0] != MODE_SELECT_6)))
2943                 return (0);
2944
2945         /*
2946          * Because there is no convenient place to stash the overall
2947          * cd_mode_params structure pointer, we have to grab it like this.
2948          * This means that ALL MODE_SENSE and MODE_SELECT requests in the
2949          * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
2950          *
2951          * XXX It would be nice if, at some point, we could increase the
2952          * number of available peripheral private pointers.  Both pointers
2953          * are currently used in most every peripheral driver.
2954          */
2955         found = 0;
2956
2957         STAILQ_FOREACH(params, &softc->mode_queue, links) {
2958                 if (params->mode_buf == ccb->csio.data_ptr) {
2959                         found = 1;
2960                         break;
2961                 }
2962         }
2963
2964         /*
2965          * This shouldn't happen.  All mode sense and mode select
2966          * operations in the cd(4) driver MUST go through cdgetmode() and
2967          * cdsetmode()!
2968          */
2969         if (found == 0) {
2970                 xpt_print(periph->path,
2971                     "mode buffer not found in mode queue!\n");
2972                 return (0);
2973         }
2974
2975         params->cdb_size = 10;
2976         softc->minimum_command_size = 10;
2977         xpt_print(ccb->ccb_h.path,
2978             "%s(6) failed, increasing minimum CDB size to 10 bytes\n",
2979             (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
2980
2981         if (cdb[0] == MODE_SENSE_6) {
2982                 struct scsi_mode_sense_10 ms10;
2983                 struct scsi_mode_sense_6 *ms6;
2984                 int len;
2985
2986                 ms6 = (struct scsi_mode_sense_6 *)cdb;
2987
2988                 bzero(&ms10, sizeof(ms10));
2989                 ms10.opcode = MODE_SENSE_10;
2990                 ms10.byte2 = ms6->byte2;
2991                 ms10.page = ms6->page;
2992
2993                 /*
2994                  * 10 byte mode header, block descriptor,
2995                  * sizeof(union cd_pages)
2996                  */
2997                 len = sizeof(struct cd_mode_data_10);
2998                 ccb->csio.dxfer_len = len;
2999
3000                 scsi_ulto2b(len, ms10.length);
3001                 ms10.control = ms6->control;
3002                 bcopy(&ms10, cdb, 10);
3003                 ccb->csio.cdb_len = 10;
3004         } else {
3005                 struct scsi_mode_select_10 ms10;
3006                 struct scsi_mode_select_6 *ms6;
3007                 struct scsi_mode_header_6 *header6;
3008                 struct scsi_mode_header_10 *header10;
3009                 struct scsi_mode_page_header *page_header;
3010                 int blk_desc_len, page_num, page_size, len;
3011
3012                 ms6 = (struct scsi_mode_select_6 *)cdb;
3013
3014                 bzero(&ms10, sizeof(ms10));
3015                 ms10.opcode = MODE_SELECT_10;
3016                 ms10.byte2 = ms6->byte2;
3017
3018                 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3019                 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3020
3021                 page_header = find_mode_page_6(header6);
3022                 page_num = page_header->page_code;
3023
3024                 blk_desc_len = header6->blk_desc_len;
3025
3026                 page_size = cdgetpagesize(page_num);
3027
3028                 if (page_size != (page_header->page_length +
3029                     sizeof(*page_header)))
3030                         page_size = page_header->page_length +
3031                                 sizeof(*page_header);
3032
3033                 len = sizeof(*header10) + blk_desc_len + page_size;
3034
3035                 len = min(params->alloc_len, len);
3036
3037                 /*
3038                  * Since the 6 byte parameter header is shorter than the 10
3039                  * byte parameter header, we need to copy the actual mode
3040                  * page data, and the block descriptor, if any, so things wind
3041                  * up in the right place.  The regions will overlap, but
3042                  * bcopy() does the right thing.
3043                  */
3044                 bcopy(params->mode_buf + sizeof(*header6),
3045                       params->mode_buf + sizeof(*header10),
3046                       len - sizeof(*header10));
3047
3048                 /* Make sure these fields are set correctly. */
3049                 scsi_ulto2b(0, header10->data_length);
3050                 header10->medium_type = 0;
3051                 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3052
3053                 ccb->csio.dxfer_len = len;
3054
3055                 scsi_ulto2b(len, ms10.length);
3056                 ms10.control = ms6->control;
3057                 bcopy(&ms10, cdb, 10);
3058                 ccb->csio.cdb_len = 10;
3059         }
3060
3061         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3062         ccb->ccb_h.status = CAM_REQUEUE_REQ;
3063         xpt_action(ccb);
3064         if (frozen) {
3065                 cam_release_devq(ccb->ccb_h.path,
3066                                  /*relsim_flags*/0,
3067                                  /*openings*/0,
3068                                  /*timeout*/0,
3069                                  /*getcount_only*/0);
3070         }
3071
3072         return (ERESTART);
3073 }
3074
3075 static int
3076 cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3077 {
3078         struct cd_softc *softc;
3079         struct cam_periph *periph;
3080         int error, error_code, sense_key, asc, ascq;
3081
3082         periph = xpt_path_periph(ccb->ccb_h.path);
3083         softc = (struct cd_softc *)periph->softc;
3084
3085         cam_periph_assert(periph, MA_OWNED);
3086
3087         /*
3088          * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3089          * CDB comes back with this particular error, try transforming it
3090          * into the 10 byte version.
3091          */
3092         error = 0;
3093         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3094                 error = cd6byteworkaround(ccb);
3095         } else if (scsi_extract_sense_ccb(ccb,
3096             &error_code, &sense_key, &asc, &ascq)) {
3097                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3098                         error = cd6byteworkaround(ccb);
3099                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3100                     asc == 0x28 && ascq == 0x00)
3101                         disk_media_changed(softc->disk, M_NOWAIT);
3102                 else if (sense_key == SSD_KEY_NOT_READY &&
3103                     asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) {
3104                         softc->flags &= ~CD_FLAG_SAW_MEDIA;
3105                         disk_media_gone(softc->disk, M_NOWAIT);
3106                 }
3107         }
3108
3109         if (error == ERESTART)
3110                 return (error);
3111
3112         /*
3113          * XXX
3114          * Until we have a better way of doing pack validation,
3115          * don't treat UAs as errors.
3116          */
3117         sense_flags |= SF_RETRY_UA;
3118
3119         if (softc->quirks & CD_Q_RETRY_BUSY)
3120                 sense_flags |= SF_RETRY_BUSY;
3121         return (cam_periph_error(ccb, cam_flags, sense_flags));
3122 }
3123
3124 static void
3125 cdmediapoll(void *arg)
3126 {
3127         struct cam_periph *periph = arg;
3128         struct cd_softc *softc = periph->softc;
3129
3130         if (softc->state == CD_STATE_NORMAL && !softc->tur &&
3131             softc->outstanding_cmds == 0) {
3132                 if (cam_periph_acquire(periph) == 0) {
3133                         softc->tur = 1;
3134                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
3135                 }
3136         }
3137         /* Queue us up again */
3138         if (cd_poll_period != 0)
3139                 callout_schedule(&softc->mediapoll_c, cd_poll_period * hz);
3140 }
3141
3142 /*
3143  * Read table of contents
3144  */
3145 static int
3146 cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
3147           u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
3148 {
3149         u_int32_t ntoc;
3150         struct ccb_scsiio *csio;
3151         union ccb *ccb;
3152         int error;
3153
3154         ntoc = len;
3155         error = 0;
3156
3157         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3158
3159         csio = &ccb->csio;
3160
3161         scsi_read_toc(csio,
3162                       /* retries */ cd_retry_count,
3163                       /* cbfcnp */ NULL,
3164                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3165                       /* byte1_flags */ (mode == CD_MSF_FORMAT) ? CD_MSF : 0,
3166                       /* format */ SRTOC_FORMAT_TOC,
3167                       /* track*/ start,
3168                       /* data_ptr */ data,
3169                       /* dxfer_len */ len,
3170                       /* sense_len */ SSD_FULL_SIZE,
3171                       /* timeout */ 50000);
3172
3173         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3174                          /*sense_flags*/SF_RETRY_UA | sense_flags);
3175
3176         xpt_release_ccb(ccb);
3177
3178         return(error);
3179 }
3180
3181 static int
3182 cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3183                  u_int32_t format, int track,
3184                  struct cd_sub_channel_info *data, u_int32_t len)
3185 {
3186         struct scsi_read_subchannel *scsi_cmd;
3187         struct ccb_scsiio *csio;
3188         union ccb *ccb;
3189         int error;
3190
3191         error = 0;
3192
3193         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3194
3195         csio = &ccb->csio;
3196
3197         cam_fill_csio(csio,
3198                       /* retries */ cd_retry_count,
3199                       /* cbfcnp */ NULL,
3200                       /* flags */ CAM_DIR_IN,
3201                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3202                       /* data_ptr */ (u_int8_t *)data,
3203                       /* dxfer_len */ len,
3204                       /* sense_len */ SSD_FULL_SIZE,
3205                       sizeof(struct scsi_read_subchannel),
3206                       /* timeout */ 50000);
3207
3208         scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3209         bzero (scsi_cmd, sizeof(*scsi_cmd));
3210
3211         scsi_cmd->op_code = READ_SUBCHANNEL;
3212         if (mode == CD_MSF_FORMAT)
3213                 scsi_cmd->byte1 |= CD_MSF;
3214         scsi_cmd->byte2 = SRS_SUBQ;
3215         scsi_cmd->subchan_format = format;
3216         scsi_cmd->track = track;
3217         scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3218         scsi_cmd->control = 0;
3219
3220         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3221                          /*sense_flags*/SF_RETRY_UA);
3222
3223         xpt_release_ccb(ccb);
3224
3225         return(error);
3226 }
3227
3228 /*
3229  * All MODE_SENSE requests in the cd(4) driver MUST go through this
3230  * routine.  See comments in cd6byteworkaround() for details.
3231  */
3232 static int
3233 cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3234           u_int32_t page)
3235 {
3236         struct ccb_scsiio *csio;
3237         struct cd_softc *softc;
3238         union ccb *ccb;
3239         int param_len;
3240         int error;
3241
3242         softc = (struct cd_softc *)periph->softc;
3243
3244         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3245
3246         csio = &ccb->csio;
3247
3248         data->cdb_size = softc->minimum_command_size;
3249         if (data->cdb_size < 10)
3250                 param_len = sizeof(struct cd_mode_data);
3251         else
3252                 param_len = sizeof(struct cd_mode_data_10);
3253
3254         /* Don't say we've got more room than we actually allocated */
3255         param_len = min(param_len, data->alloc_len);
3256
3257         scsi_mode_sense_len(csio,
3258                             /* retries */ cd_retry_count,
3259                             /* cbfcnp */ NULL,
3260                             /* tag_action */ MSG_SIMPLE_Q_TAG,
3261                             /* dbd */ 0,
3262                             /* page_code */ SMS_PAGE_CTRL_CURRENT,
3263                             /* page */ page,
3264                             /* param_buf */ data->mode_buf,
3265                             /* param_len */ param_len,
3266                             /* minimum_cmd_size */ softc->minimum_command_size,
3267                             /* sense_len */ SSD_FULL_SIZE,
3268                             /* timeout */ 50000);
3269
3270         /*
3271          * It would be nice not to have to do this, but there's no
3272          * available pointer in the CCB that would allow us to stuff the
3273          * mode params structure in there and retrieve it in
3274          * cd6byteworkaround(), so we can set the cdb size.  The cdb size
3275          * lets the caller know what CDB size we ended up using, so they
3276          * can find the actual mode page offset.
3277          */
3278         STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3279
3280         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3281                          /*sense_flags*/SF_RETRY_UA);
3282
3283         xpt_release_ccb(ccb);
3284
3285         STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3286
3287         /*
3288          * This is a bit of belt-and-suspenders checking, but if we run
3289          * into a situation where the target sends back multiple block
3290          * descriptors, we might not have enough space in the buffer to
3291          * see the whole mode page.  Better to return an error than
3292          * potentially access memory beyond our malloced region.
3293          */
3294         if (error == 0) {
3295                 u_int32_t data_len;
3296
3297                 if (data->cdb_size == 10) {
3298                         struct scsi_mode_header_10 *hdr10;
3299
3300                         hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3301                         data_len = scsi_2btoul(hdr10->data_length);
3302                         data_len += sizeof(hdr10->data_length);
3303                 } else {
3304                         struct scsi_mode_header_6 *hdr6;
3305
3306                         hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3307                         data_len = hdr6->data_length;
3308                         data_len += sizeof(hdr6->data_length);
3309                 }
3310
3311                 /*
3312                  * Complain if there is more mode data available than we
3313                  * allocated space for.  This could potentially happen if
3314                  * we miscalculated the page length for some reason, if the
3315                  * drive returns multiple block descriptors, or if it sets
3316                  * the data length incorrectly.
3317                  */
3318                 if (data_len > data->alloc_len) {
3319                         xpt_print(periph->path, "allocated modepage %d length "
3320                             "%d < returned length %d\n", page, data->alloc_len,
3321                             data_len);
3322                         error = ENOSPC;
3323                 }
3324         }
3325         return (error);
3326 }
3327
3328 /*
3329  * All MODE_SELECT requests in the cd(4) driver MUST go through this
3330  * routine.  See comments in cd6byteworkaround() for details.
3331  */
3332 static int
3333 cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
3334 {
3335         struct ccb_scsiio *csio;
3336         struct cd_softc *softc;
3337         union ccb *ccb;
3338         int cdb_size, param_len;
3339         int error;
3340
3341         softc = (struct cd_softc *)periph->softc;
3342
3343         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3344
3345         csio = &ccb->csio;
3346
3347         error = 0;
3348
3349         /*
3350          * If the data is formatted for the 10 byte version of the mode
3351          * select parameter list, we need to use the 10 byte CDB.
3352          * Otherwise, we use whatever the stored minimum command size.
3353          */
3354         if (data->cdb_size == 10)
3355                 cdb_size = data->cdb_size;
3356         else
3357                 cdb_size = softc->minimum_command_size;
3358
3359         if (cdb_size >= 10) {
3360                 struct scsi_mode_header_10 *mode_header;
3361                 u_int32_t data_len;
3362
3363                 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3364
3365                 data_len = scsi_2btoul(mode_header->data_length);
3366
3367                 scsi_ulto2b(0, mode_header->data_length);
3368                 /*
3369                  * SONY drives do not allow a mode select with a medium_type
3370                  * value that has just been returned by a mode sense; use a
3371                  * medium_type of 0 (Default) instead.
3372                  */
3373                 mode_header->medium_type = 0;
3374
3375                 /*
3376                  * Pass back whatever the drive passed to us, plus the size
3377                  * of the data length field.
3378                  */
3379                 param_len = data_len + sizeof(mode_header->data_length);
3380
3381         } else {
3382                 struct scsi_mode_header_6 *mode_header;
3383
3384                 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3385
3386                 param_len = mode_header->data_length + 1;
3387
3388                 mode_header->data_length = 0;
3389                 /*
3390                  * SONY drives do not allow a mode select with a medium_type
3391                  * value that has just been returned by a mode sense; use a
3392                  * medium_type of 0 (Default) instead.
3393                  */
3394                 mode_header->medium_type = 0;
3395         }
3396
3397         /* Don't say we've got more room than we actually allocated */
3398         param_len = min(param_len, data->alloc_len);
3399
3400         scsi_mode_select_len(csio,
3401                              /* retries */ cd_retry_count,
3402                              /* cbfcnp */ NULL,
3403                              /* tag_action */ MSG_SIMPLE_Q_TAG,
3404                              /* scsi_page_fmt */ 1,
3405                              /* save_pages */ 0,
3406                              /* param_buf */ data->mode_buf,
3407                              /* param_len */ param_len,
3408                              /* minimum_cmd_size */ cdb_size,
3409                              /* sense_len */ SSD_FULL_SIZE,
3410                              /* timeout */ 50000);
3411
3412         /* See comments in cdgetmode() and cd6byteworkaround(). */
3413         STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3414
3415         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3416                          /*sense_flags*/SF_RETRY_UA);
3417
3418         xpt_release_ccb(ccb);
3419
3420         STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3421
3422         return (error);
3423 }
3424
3425 static int
3426 cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3427 {
3428         struct ccb_scsiio *csio;
3429         union ccb *ccb;
3430         int error;
3431         u_int8_t cdb_len;
3432
3433         error = 0;
3434         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3435         csio = &ccb->csio;
3436         /*
3437          * Use the smallest possible command to perform the operation.
3438          */
3439         if ((len & 0xffff0000) == 0) {
3440                 /*
3441                  * We can fit in a 10 byte cdb.
3442                  */
3443                 struct scsi_play_10 *scsi_cmd;
3444
3445                 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3446                 bzero (scsi_cmd, sizeof(*scsi_cmd));
3447                 scsi_cmd->op_code = PLAY_10;
3448                 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3449                 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3450                 cdb_len = sizeof(*scsi_cmd);
3451         } else  {
3452                 struct scsi_play_12 *scsi_cmd;
3453
3454                 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3455                 bzero (scsi_cmd, sizeof(*scsi_cmd));
3456                 scsi_cmd->op_code = PLAY_12;
3457                 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3458                 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3459                 cdb_len = sizeof(*scsi_cmd);
3460         }
3461         cam_fill_csio(csio,
3462                       /*retries*/ cd_retry_count,
3463                       /*cbfcnp*/NULL,
3464                       /*flags*/CAM_DIR_NONE,
3465                       MSG_SIMPLE_Q_TAG,
3466                       /*dataptr*/NULL,
3467                       /*datalen*/0,
3468                       /*sense_len*/SSD_FULL_SIZE,
3469                       cdb_len,
3470                       /*timeout*/50 * 1000);
3471
3472         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3473                          /*sense_flags*/SF_RETRY_UA);
3474
3475         xpt_release_ccb(ccb);
3476
3477         return(error);
3478 }
3479
3480 static int
3481 cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3482           u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3483 {
3484         struct scsi_play_msf *scsi_cmd;
3485         struct ccb_scsiio *csio;
3486         union ccb *ccb;
3487         int error;
3488
3489         error = 0;
3490
3491         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3492
3493         csio = &ccb->csio;
3494
3495         cam_fill_csio(csio,
3496                       /* retries */ cd_retry_count,
3497                       /* cbfcnp */ NULL,
3498                       /* flags */ CAM_DIR_NONE,
3499                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3500                       /* data_ptr */ NULL,
3501                       /* dxfer_len */ 0,
3502                       /* sense_len */ SSD_FULL_SIZE,
3503                       sizeof(struct scsi_play_msf),
3504                       /* timeout */ 50000);
3505
3506         scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3507         bzero (scsi_cmd, sizeof(*scsi_cmd));
3508
3509         scsi_cmd->op_code = PLAY_MSF;
3510         scsi_cmd->start_m = startm;
3511         scsi_cmd->start_s = starts;
3512         scsi_cmd->start_f = startf;
3513         scsi_cmd->end_m = endm;
3514         scsi_cmd->end_s = ends;
3515         scsi_cmd->end_f = endf;
3516
3517         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3518                          /*sense_flags*/SF_RETRY_UA);
3519
3520         xpt_release_ccb(ccb);
3521
3522         return(error);
3523 }
3524
3525 static int
3526 cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3527              u_int32_t etrack, u_int32_t eindex)
3528 {
3529         struct scsi_play_track *scsi_cmd;
3530         struct ccb_scsiio *csio;
3531         union ccb *ccb;
3532         int error;
3533
3534         error = 0;
3535
3536         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3537
3538         csio = &ccb->csio;
3539
3540         cam_fill_csio(csio,
3541                       /* retries */ cd_retry_count,
3542                       /* cbfcnp */ NULL,
3543                       /* flags */ CAM_DIR_NONE,
3544                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3545                       /* data_ptr */ NULL,
3546                       /* dxfer_len */ 0,
3547                       /* sense_len */ SSD_FULL_SIZE,
3548                       sizeof(struct scsi_play_track),
3549                       /* timeout */ 50000);
3550
3551         scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3552         bzero (scsi_cmd, sizeof(*scsi_cmd));
3553
3554         scsi_cmd->op_code = PLAY_TRACK;
3555         scsi_cmd->start_track = strack;
3556         scsi_cmd->start_index = sindex;
3557         scsi_cmd->end_track = etrack;
3558         scsi_cmd->end_index = eindex;
3559
3560         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3561                          /*sense_flags*/SF_RETRY_UA);
3562
3563         xpt_release_ccb(ccb);
3564
3565         return(error);
3566 }
3567
3568 static int
3569 cdpause(struct cam_periph *periph, u_int32_t go)
3570 {
3571         struct scsi_pause *scsi_cmd;
3572         struct ccb_scsiio *csio;
3573         union ccb *ccb;
3574         int error;
3575
3576         error = 0;
3577
3578         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3579
3580         csio = &ccb->csio;
3581
3582         cam_fill_csio(csio,
3583                       /* retries */ cd_retry_count,
3584                       /* cbfcnp */ NULL,
3585                       /* flags */ CAM_DIR_NONE,
3586                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3587                       /* data_ptr */ NULL,
3588                       /* dxfer_len */ 0,
3589                       /* sense_len */ SSD_FULL_SIZE,
3590                       sizeof(struct scsi_pause),
3591                       /* timeout */ 50000);
3592
3593         scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3594         bzero (scsi_cmd, sizeof(*scsi_cmd));
3595
3596         scsi_cmd->op_code = PAUSE;
3597         scsi_cmd->resume = go;
3598
3599         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3600                          /*sense_flags*/SF_RETRY_UA);
3601
3602         xpt_release_ccb(ccb);
3603
3604         return(error);
3605 }
3606
3607 static int
3608 cdstartunit(struct cam_periph *periph, int load)
3609 {
3610         union ccb *ccb;
3611         int error;
3612
3613         error = 0;
3614
3615         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3616
3617         scsi_start_stop(&ccb->csio,
3618                         /* retries */ cd_retry_count,
3619                         /* cbfcnp */ NULL,
3620                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3621                         /* start */ TRUE,
3622                         /* load_eject */ load,
3623                         /* immediate */ FALSE,
3624                         /* sense_len */ SSD_FULL_SIZE,
3625                         /* timeout */ 50000);
3626
3627         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3628                          /*sense_flags*/SF_RETRY_UA);
3629
3630         xpt_release_ccb(ccb);
3631
3632         return(error);
3633 }
3634
3635 static int
3636 cdstopunit(struct cam_periph *periph, u_int32_t eject)
3637 {
3638         union ccb *ccb;
3639         int error;
3640
3641         error = 0;
3642
3643         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3644
3645         scsi_start_stop(&ccb->csio,
3646                         /* retries */ cd_retry_count,
3647                         /* cbfcnp */ NULL,
3648                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3649                         /* start */ FALSE,
3650                         /* load_eject */ eject,
3651                         /* immediate */ FALSE,
3652                         /* sense_len */ SSD_FULL_SIZE,
3653                         /* timeout */ 50000);
3654
3655         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3656                          /*sense_flags*/SF_RETRY_UA);
3657
3658         xpt_release_ccb(ccb);
3659
3660         return(error);
3661 }
3662
3663 static int
3664 cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3665 {
3666         struct scsi_set_speed *scsi_cmd;
3667         struct ccb_scsiio *csio;
3668         union ccb *ccb;
3669         int error;
3670
3671         error = 0;
3672         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3673         csio = &ccb->csio;
3674
3675         /* Preserve old behavior: units in multiples of CDROM speed */
3676         if (rdspeed < 177)
3677                 rdspeed *= 177;
3678         if (wrspeed < 177)
3679                 wrspeed *= 177;
3680
3681         cam_fill_csio(csio,
3682                       /* retries */ cd_retry_count,
3683                       /* cbfcnp */ NULL,
3684                       /* flags */ CAM_DIR_NONE,
3685                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3686                       /* data_ptr */ NULL,
3687                       /* dxfer_len */ 0,
3688                       /* sense_len */ SSD_FULL_SIZE,
3689                       sizeof(struct scsi_set_speed),
3690                       /* timeout */ 50000);
3691
3692         scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3693         bzero(scsi_cmd, sizeof(*scsi_cmd));
3694
3695         scsi_cmd->opcode = SET_CD_SPEED;
3696         scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3697         scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3698
3699         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3700                          /*sense_flags*/SF_RETRY_UA);
3701
3702         xpt_release_ccb(ccb);
3703
3704         return(error);
3705 }
3706
3707 static int
3708 cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3709 {
3710         union ccb *ccb;
3711         u_int8_t *databuf;
3712         u_int32_t lba;
3713         int error;
3714         int length;
3715
3716         error = 0;
3717         databuf = NULL;
3718         lba = 0;
3719
3720         switch (authinfo->format) {
3721         case DVD_REPORT_AGID:
3722                 length = sizeof(struct scsi_report_key_data_agid);
3723                 break;
3724         case DVD_REPORT_CHALLENGE:
3725                 length = sizeof(struct scsi_report_key_data_challenge);
3726                 break;
3727         case DVD_REPORT_KEY1:
3728                 length = sizeof(struct scsi_report_key_data_key1_key2);
3729                 break;
3730         case DVD_REPORT_TITLE_KEY:
3731                 length = sizeof(struct scsi_report_key_data_title);
3732                 /* The lba field is only set for the title key */
3733                 lba = authinfo->lba;
3734                 break;
3735         case DVD_REPORT_ASF:
3736                 length = sizeof(struct scsi_report_key_data_asf);
3737                 break;
3738         case DVD_REPORT_RPC:
3739                 length = sizeof(struct scsi_report_key_data_rpc);
3740                 break;
3741         case DVD_INVALIDATE_AGID:
3742                 length = 0;
3743                 break;
3744         default:
3745                 return (EINVAL);
3746         }
3747
3748         if (length != 0) {
3749                 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3750         } else
3751                 databuf = NULL;
3752
3753         cam_periph_lock(periph);
3754         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3755
3756         scsi_report_key(&ccb->csio,
3757                         /* retries */ cd_retry_count,
3758                         /* cbfcnp */ NULL,
3759                         /* tag_action */ MSG_SIMPLE_Q_TAG,
3760                         /* lba */ lba,
3761                         /* agid */ authinfo->agid,
3762                         /* key_format */ authinfo->format,
3763                         /* data_ptr */ databuf,
3764                         /* dxfer_len */ length,
3765                         /* sense_len */ SSD_FULL_SIZE,
3766                         /* timeout */ 50000);
3767
3768         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3769                          /*sense_flags*/SF_RETRY_UA);
3770
3771         if (error != 0)
3772                 goto bailout;
3773
3774         if (ccb->csio.resid != 0) {
3775                 xpt_print(periph->path, "warning, residual for report key "
3776                     "command is %d\n", ccb->csio.resid);
3777         }
3778
3779         switch(authinfo->format) {
3780         case DVD_REPORT_AGID: {
3781                 struct scsi_report_key_data_agid *agid_data;
3782
3783                 agid_data = (struct scsi_report_key_data_agid *)databuf;
3784
3785                 authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3786                         RKD_AGID_SHIFT;
3787                 break;
3788         }
3789         case DVD_REPORT_CHALLENGE: {
3790                 struct scsi_report_key_data_challenge *chal_data;
3791
3792                 chal_data = (struct scsi_report_key_data_challenge *)databuf;
3793
3794                 bcopy(chal_data->challenge_key, authinfo->keychal,
3795                       min(sizeof(chal_data->challenge_key),
3796                           sizeof(authinfo->keychal)));
3797                 break;
3798         }
3799         case DVD_REPORT_KEY1: {
3800                 struct scsi_report_key_data_key1_key2 *key1_data;
3801
3802                 key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3803
3804                 bcopy(key1_data->key1, authinfo->keychal,
3805                       min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3806                 break;
3807         }
3808         case DVD_REPORT_TITLE_KEY: {
3809                 struct scsi_report_key_data_title *title_data;
3810
3811                 title_data = (struct scsi_report_key_data_title *)databuf;
3812
3813                 authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3814                         RKD_TITLE_CPM_SHIFT;
3815                 authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3816                         RKD_TITLE_CP_SEC_SHIFT;
3817                 authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3818                         RKD_TITLE_CMGS_SHIFT;
3819                 bcopy(title_data->title_key, authinfo->keychal,
3820                       min(sizeof(title_data->title_key),
3821                           sizeof(authinfo->keychal)));
3822                 break;
3823         }
3824         case DVD_REPORT_ASF: {
3825                 struct scsi_report_key_data_asf *asf_data;
3826
3827                 asf_data = (struct scsi_report_key_data_asf *)databuf;
3828
3829                 authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
3830                 break;
3831         }
3832         case DVD_REPORT_RPC: {
3833                 struct scsi_report_key_data_rpc *rpc_data;
3834
3835                 rpc_data = (struct scsi_report_key_data_rpc *)databuf;
3836
3837                 authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
3838                         RKD_RPC_TYPE_SHIFT;
3839                 authinfo->vend_rsts =
3840                         (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
3841                         RKD_RPC_VENDOR_RESET_SHIFT;
3842                 authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
3843                 authinfo->region = rpc_data->region_mask;
3844                 authinfo->rpc_scheme = rpc_data->rpc_scheme1;
3845                 break;
3846         }
3847         case DVD_INVALIDATE_AGID:
3848                 break;
3849         default:
3850                 /* This should be impossible, since we checked above */
3851                 error = EINVAL;
3852                 goto bailout;
3853                 break; /* NOTREACHED */
3854         }
3855
3856 bailout:
3857         xpt_release_ccb(ccb);
3858         cam_periph_unlock(periph);
3859
3860         if (databuf != NULL)
3861                 free(databuf, M_DEVBUF);
3862
3863         return(error);
3864 }
3865
3866 static int
3867 cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3868 {
3869         union ccb *ccb;
3870         u_int8_t *databuf;
3871         int length;
3872         int error;
3873
3874         error = 0;
3875         databuf = NULL;
3876
3877         switch(authinfo->format) {
3878         case DVD_SEND_CHALLENGE: {
3879                 struct scsi_report_key_data_challenge *challenge_data;
3880
3881                 length = sizeof(*challenge_data);
3882
3883                 challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3884
3885                 databuf = (u_int8_t *)challenge_data;
3886
3887                 scsi_ulto2b(length - sizeof(challenge_data->data_len),
3888                             challenge_data->data_len);
3889
3890                 bcopy(authinfo->keychal, challenge_data->challenge_key,
3891                       min(sizeof(authinfo->keychal),
3892                           sizeof(challenge_data->challenge_key)));
3893                 break;
3894         }
3895         case DVD_SEND_KEY2: {
3896                 struct scsi_report_key_data_key1_key2 *key2_data;
3897
3898                 length = sizeof(*key2_data);
3899
3900                 key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3901
3902                 databuf = (u_int8_t *)key2_data;
3903
3904                 scsi_ulto2b(length - sizeof(key2_data->data_len),
3905                             key2_data->data_len);
3906
3907                 bcopy(authinfo->keychal, key2_data->key1,
3908                       min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
3909
3910                 break;
3911         }
3912         case DVD_SEND_RPC: {
3913                 struct scsi_send_key_data_rpc *rpc_data;
3914
3915                 length = sizeof(*rpc_data);
3916
3917                 rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
3918
3919                 databuf = (u_int8_t *)rpc_data;
3920
3921                 scsi_ulto2b(length - sizeof(rpc_data->data_len),
3922                             rpc_data->data_len);
3923
3924                 rpc_data->region_code = authinfo->region;
3925                 break;
3926         }
3927         default:
3928                 return (EINVAL);
3929         }
3930
3931         cam_periph_lock(periph);
3932         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3933
3934         scsi_send_key(&ccb->csio,
3935                       /* retries */ cd_retry_count,
3936                       /* cbfcnp */ NULL,
3937                       /* tag_action */ MSG_SIMPLE_Q_TAG,
3938                       /* agid */ authinfo->agid,
3939                       /* key_format */ authinfo->format,
3940                       /* data_ptr */ databuf,
3941                       /* dxfer_len */ length,
3942                       /* sense_len */ SSD_FULL_SIZE,
3943                       /* timeout */ 50000);
3944
3945         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
3946                          /*sense_flags*/SF_RETRY_UA);
3947
3948         xpt_release_ccb(ccb);
3949         cam_periph_unlock(periph);
3950
3951         if (databuf != NULL)
3952                 free(databuf, M_DEVBUF);
3953
3954         return(error);
3955 }
3956
3957 static int
3958 cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
3959 {
3960         union ccb *ccb;
3961         u_int8_t *databuf;
3962         u_int32_t address;
3963         int error;
3964         int length;
3965
3966         error = 0;
3967         databuf = NULL;
3968         /* The address is reserved for many of the formats */
3969         address = 0;
3970
3971         switch(dvdstruct->format) {
3972         case DVD_STRUCT_PHYSICAL:
3973                 length = sizeof(struct scsi_read_dvd_struct_data_physical);
3974                 break;
3975         case DVD_STRUCT_COPYRIGHT:
3976                 length = sizeof(struct scsi_read_dvd_struct_data_copyright);
3977                 break;
3978         case DVD_STRUCT_DISCKEY:
3979                 length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
3980                 break;
3981         case DVD_STRUCT_BCA:
3982                 length = sizeof(struct scsi_read_dvd_struct_data_bca);
3983                 break;
3984         case DVD_STRUCT_MANUFACT:
3985                 length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
3986                 break;
3987         case DVD_STRUCT_CMI:
3988                 return (ENODEV);
3989         case DVD_STRUCT_PROTDISCID:
3990                 length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
3991                 break;
3992         case DVD_STRUCT_DISCKEYBLOCK:
3993                 length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
3994                 break;
3995         case DVD_STRUCT_DDS:
3996                 length = sizeof(struct scsi_read_dvd_struct_data_dds);
3997                 break;
3998         case DVD_STRUCT_MEDIUM_STAT:
3999                 length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
4000                 break;
4001         case DVD_STRUCT_SPARE_AREA:
4002                 length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
4003                 break;
4004         case DVD_STRUCT_RMD_LAST:
4005                 return (ENODEV);
4006         case DVD_STRUCT_RMD_RMA:
4007                 return (ENODEV);
4008         case DVD_STRUCT_PRERECORDED:
4009                 length = sizeof(struct scsi_read_dvd_struct_data_leadin);
4010                 break;
4011         case DVD_STRUCT_UNIQUEID:
4012                 length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
4013                 break;
4014         case DVD_STRUCT_DCB:
4015                 return (ENODEV);
4016         case DVD_STRUCT_LIST:
4017                 /*
4018                  * This is the maximum allocation length for the READ DVD
4019                  * STRUCTURE command.  There's nothing in the MMC3 spec
4020                  * that indicates a limit in the amount of data that can
4021                  * be returned from this call, other than the limits
4022                  * imposed by the 2-byte length variables.
4023                  */
4024                 length = 65535;
4025                 break;
4026         default:
4027                 return (EINVAL);
4028         }
4029
4030         if (length != 0) {
4031                 databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
4032         } else
4033                 databuf = NULL;
4034
4035         cam_periph_lock(periph);
4036         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4037
4038         scsi_read_dvd_structure(&ccb->csio,
4039                                 /* retries */ cd_retry_count,
4040                                 /* cbfcnp */ NULL,
4041                                 /* tag_action */ MSG_SIMPLE_Q_TAG,
4042                                 /* lba */ address,
4043                                 /* layer_number */ dvdstruct->layer_num,
4044                                 /* key_format */ dvdstruct->format,
4045                                 /* agid */ dvdstruct->agid,
4046                                 /* data_ptr */ databuf,
4047                                 /* dxfer_len */ length,
4048                                 /* sense_len */ SSD_FULL_SIZE,
4049                                 /* timeout */ 50000);
4050
4051         error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
4052                          /*sense_flags*/SF_RETRY_UA);
4053
4054         if (error != 0)
4055                 goto bailout;
4056
4057         switch(dvdstruct->format) {
4058         case DVD_STRUCT_PHYSICAL: {
4059                 struct scsi_read_dvd_struct_data_layer_desc *inlayer;
4060                 struct dvd_layer *outlayer;
4061                 struct scsi_read_dvd_struct_data_physical *phys_data;
4062
4063                 phys_data =
4064                         (struct scsi_read_dvd_struct_data_physical *)databuf;
4065                 inlayer = &phys_data->layer_desc;
4066                 outlayer = (struct dvd_layer *)&dvdstruct->data;
4067
4068                 dvdstruct->length = sizeof(*inlayer);
4069
4070                 outlayer->book_type = (inlayer->book_type_version &
4071                         RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
4072                 outlayer->book_version = (inlayer->book_type_version &
4073                         RDSD_BOOK_VERSION_MASK);
4074                 outlayer->disc_size = (inlayer->disc_size_max_rate &
4075                         RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
4076                 outlayer->max_rate = (inlayer->disc_size_max_rate &
4077                         RDSD_MAX_RATE_MASK);
4078                 outlayer->nlayers = (inlayer->layer_info &
4079                         RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
4080                 outlayer->track_path = (inlayer->layer_info &
4081                         RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
4082                 outlayer->layer_type = (inlayer->layer_info &
4083                         RDSD_LAYER_TYPE_MASK);
4084                 outlayer->linear_density = (inlayer->density &
4085                         RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
4086                 outlayer->track_density = (inlayer->density &
4087                         RDSD_TRACK_DENSITY_MASK);
4088                 outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
4089                         RDSD_BCA_SHIFT;
4090                 outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
4091                 outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
4092                 outlayer->end_sector_l0 =
4093                         scsi_3btoul(inlayer->end_sector_layer0);
4094                 break;
4095         }
4096         case DVD_STRUCT_COPYRIGHT: {
4097                 struct scsi_read_dvd_struct_data_copyright *copy_data;
4098
4099                 copy_data = (struct scsi_read_dvd_struct_data_copyright *)
4100                         databuf;
4101
4102                 dvdstruct->cpst = copy_data->cps_type;
4103                 dvdstruct->rmi = copy_data->region_info;
4104                 dvdstruct->length = 0;
4105
4106                 break;
4107         }
4108         default:
4109                 /*
4110                  * Tell the user what the overall length is, no matter
4111                  * what we can actually fit in the data buffer.
4112                  */
4113                 dvdstruct->length = length - ccb->csio.resid -
4114                         sizeof(struct scsi_read_dvd_struct_data_header);
4115
4116                 /*
4117                  * But only actually copy out the smaller of what we read
4118                  * in or what the structure can take.
4119                  */
4120                 bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
4121                       dvdstruct->data,
4122                       min(sizeof(dvdstruct->data), dvdstruct->length));
4123                 break;
4124         }
4125
4126 bailout:
4127         xpt_release_ccb(ccb);
4128         cam_periph_unlock(periph);
4129
4130         if (databuf != NULL)
4131                 free(databuf, M_DEVBUF);
4132
4133         return(error);
4134 }
4135
4136 void
4137 scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
4138                 void (*cbfcnp)(struct cam_periph *, union ccb *),
4139                 u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
4140                 u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
4141                 u_int8_t sense_len, u_int32_t timeout)
4142 {
4143         struct scsi_report_key *scsi_cmd;
4144
4145         scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
4146         bzero(scsi_cmd, sizeof(*scsi_cmd));
4147         scsi_cmd->opcode = REPORT_KEY;
4148         scsi_ulto4b(lba, scsi_cmd->lba);
4149         scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4150         scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4151                 (key_format & RK_KF_KEYFORMAT_MASK);
4152
4153         cam_fill_csio(csio,
4154                       retries,
4155                       cbfcnp,
4156                       /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
4157                       tag_action,
4158                       /*data_ptr*/ data_ptr,
4159                       /*dxfer_len*/ dxfer_len,
4160                       sense_len,
4161                       sizeof(*scsi_cmd),
4162                       timeout);
4163 }
4164
4165 void
4166 scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
4167               void (*cbfcnp)(struct cam_periph *, union ccb *),
4168               u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
4169               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4170               u_int32_t timeout)
4171 {
4172         struct scsi_send_key *scsi_cmd;
4173
4174         scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
4175         bzero(scsi_cmd, sizeof(*scsi_cmd));
4176         scsi_cmd->opcode = SEND_KEY;
4177
4178         scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
4179         scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4180                 (key_format & RK_KF_KEYFORMAT_MASK);
4181
4182         cam_fill_csio(csio,
4183                       retries,
4184                       cbfcnp,
4185                       /*flags*/ CAM_DIR_OUT,
4186                       tag_action,
4187                       /*data_ptr*/ data_ptr,
4188                       /*dxfer_len*/ dxfer_len,
4189                       sense_len,
4190                       sizeof(*scsi_cmd),
4191                       timeout);
4192 }
4193
4194 void
4195 scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
4196                         void (*cbfcnp)(struct cam_periph *, union ccb *),
4197                         u_int8_t tag_action, u_int32_t address,
4198                         u_int8_t layer_number, u_int8_t format, u_int8_t agid,
4199                         u_int8_t *data_ptr, u_int32_t dxfer_len,
4200                         u_int8_t sense_len, u_int32_t timeout)
4201 {
4202         struct scsi_read_dvd_structure *scsi_cmd;
4203
4204         scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
4205         bzero(scsi_cmd, sizeof(*scsi_cmd));
4206         scsi_cmd->opcode = READ_DVD_STRUCTURE;
4207
4208         scsi_ulto4b(address, scsi_cmd->address);
4209         scsi_cmd->layer_number = layer_number;
4210         scsi_cmd->format = format;
4211         scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4212         /* The AGID is the top two bits of this byte */
4213         scsi_cmd->agid = agid << 6;
4214
4215         cam_fill_csio(csio,
4216                       retries,
4217                       cbfcnp,
4218                       /*flags*/ CAM_DIR_IN,
4219                       tag_action,
4220                       /*data_ptr*/ data_ptr,
4221                       /*dxfer_len*/ dxfer_len,
4222                       sense_len,
4223                       sizeof(*scsi_cmd),
4224                       timeout);
4225 }
4226
4227 void
4228 scsi_read_toc(struct ccb_scsiio *csio, uint32_t retries,
4229               void (*cbfcnp)(struct cam_periph *, union ccb *),
4230               uint8_t tag_action, uint8_t byte1_flags, uint8_t format,
4231               uint8_t track, uint8_t *data_ptr, uint32_t dxfer_len,
4232               int sense_len, int timeout)
4233 {
4234         struct scsi_read_toc *scsi_cmd;
4235
4236         scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
4237         bzero(scsi_cmd, sizeof(*scsi_cmd));
4238         scsi_cmd->op_code = READ_TOC;
4239
4240         /*
4241          * The structure is counting from 1, the function counting from 0.
4242          * The spec counts from 0.  In MMC-6, there is only one flag, the
4243          * MSF flag.  But we put the whole byte in for a bit a future-proofing.
4244          */
4245         scsi_cmd->byte2 = byte1_flags;
4246         scsi_cmd->format = format;
4247         scsi_cmd->from_track = track;
4248         scsi_ulto2b(dxfer_len, scsi_cmd->data_len);
4249
4250         cam_fill_csio(csio,
4251                       /* retries */ retries,
4252                       /* cbfcnp */ cbfcnp,
4253                       /* flags */ CAM_DIR_IN,
4254                       /* tag_action */ tag_action,
4255                       /* data_ptr */ data_ptr,
4256                       /* dxfer_len */ dxfer_len,
4257                       /* sense_len */ sense_len,
4258                       sizeof(*scsi_cmd),
4259                       /* timeout */ timeout);
4260 }