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