sys/dev/scd/scd.c

   1 /*-
   2  * Copyright (c) 1995 Mikael Hybsch
   3  * All rights reserved.
   4  *
   5  * Portions of this file are copied from mcd.c
   6  * which has the following copyrights:
   7  *
   8  *      Copyright 1993 by Holger Veit (data part)
   9  *      Copyright 1993 by Brian Moore (audio part)
  10  *      Changes Copyright 1993 by Gary Clark II
  11  *      Changes Copyright (C) 1994 by Andrew A. Chernov
  12  *
  13  *      Rewrote probe routine to work on newer Mitsumi drives.
  14  *      Additional changes (C) 1994 by Jordan K. Hubbard
  15  *
  16  *      All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions
  20  * are met:
  21  * 1. Redistributions of source code must retain the above copyright
  22  *    notice, this list of conditions and the following disclaimer
  23  *    in this position and unchanged.
  24  * 2. Redistributions in binary form must reproduce the above copyright
  25  *    notice, this list of conditions and the following disclaimer in the
  26  *    documentation and/or other materials provided with the distribution.
  27  * 3. The name of the author may not be used to endorse or promote products
  28  *    derived from this software without specific prior written permission
  29  *
  30  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  31  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  32  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  33  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  34  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  35  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  36  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  37  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  38  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  39  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  40  *
  41  */
  42
  43 #include <sys/cdefs.h>
  44 __FBSDID("$FreeBSD$");
  45
  46
  47 #undef  SCD_DEBUG
  48
  49 #include <sys/param.h>
  50 #include <sys/systm.h>
  51 #include <sys/kernel.h>
  52 #include <sys/conf.h>
  53 #include <sys/fcntl.h>
  54 #include <sys/bio.h>
  55 #include <sys/cdio.h>
  56 #include <sys/disk.h>
  57 #include <sys/bus.h>
  58
  59 #include <machine/stdarg.h>
  60
  61 #include <machine/bus.h>
  62 #include <machine/resource.h>
  63 #include <sys/rman.h>
  64
  65 #include <isa/isavar.h>
  66
  67 #include <dev/scd/scdreg.h>
  68 #include <dev/scd/scdvar.h>
  69
  70 /* flags */
  71 #define SCDOPEN         0x0001  /* device opened */
  72 #define SCDVALID        0x0002  /* parameters loaded */
  73 #define SCDINIT         0x0004  /* device is init'd */
  74 #define SCDPROBING      0x0020  /* probing */
  75 #define SCDTOC          0x0100  /* already read toc */
  76 #define SCDMBXBSY       0x0200  /* local mbx is busy */
  77 #define SCDSPINNING     0x0400  /* drive is spun up */
  78
  79 #define SCD_S_BEGIN     0
  80 #define SCD_S_BEGIN1    1
  81 #define SCD_S_WAITSTAT  2
  82 #define SCD_S_WAITFIFO  3
  83 #define SCD_S_WAITSPIN  4
  84 #define SCD_S_WAITREAD  5
  85 #define SCD_S_WAITPARAM 6
  86
  87 #define RDELAY_WAIT     300
  88 #define RDELAY_WAITREAD 300
  89
  90 #define SCDBLKSIZE      2048
  91
  92 #ifdef SCD_DEBUG
  93    static int scd_debuglevel = SCD_DEBUG;
  94 #  define XDEBUG(sc, level, fmt, args...) \
  95         do { \
  96                 if (scd_debuglevel >= level) \
  97                         device_printf(sc->dev, fmt, ## args); \
  98         } while (0)
  99 #else
 100 #  define XDEBUG(sc, level, fmt, args...)
 101 #endif
 102
 103 #define IS_ATTENTION(sc)        ((SCD_READ(sc, IREG_STATUS) & SBIT_ATTENTION) != 0)
 104 #define IS_BUSY(sc)             ((SCD_READ(sc, IREG_STATUS) & SBIT_BUSY) != 0)
 105 #define IS_DATA_RDY(sc)         ((SCD_READ(sc, IREG_STATUS) & SBIT_DATA_READY) != 0)
 106 #define STATUS_BIT(sc, bit)     ((SCD_READ(sc, IREG_STATUS) & (bit)) != 0)
 107 #define FSTATUS_BIT(sc, bit)    ((SCD_READ(sc, IREG_FSTATUS) & (bit)) != 0)
 108
 109 /* prototypes */
 110 static  void    hsg2msf(int hsg, bcd_t *msf);
 111 static  int     msf2hsg(bcd_t *msf);
 112
 113 static void process_attention(struct scd_softc *);
 114 static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear);
 115 static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...);
 116 static void init_drive(struct scd_softc *);
 117 static int spin_up(struct scd_softc *);
 118 static int read_toc(struct scd_softc *);
 119 static int get_result(struct scd_softc *, int result_len, u_char *result);
 120 static void print_error(struct scd_softc *, int errcode);
 121
 122 static void scd_start(struct scd_softc *);
 123 static timeout_t scd_timeout;
 124 static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin);
 125
 126 static int scd_eject(struct scd_softc *);
 127 static int scd_stop(struct scd_softc *);
 128 static int scd_pause(struct scd_softc *);
 129 static int scd_resume(struct scd_softc *);
 130 static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt);
 131 static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf);
 132 static int scd_play(struct scd_softc *, struct ioc_play_msf *msf);
 133 static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch, int nocopyout);
 134 static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch);
 135
 136 /* for xcdplayer */
 137 static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th);
 138 static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te);
 139 static int scd_toc_entry(struct scd_softc *, struct ioc_read_toc_single_entry *te);
 140 #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */
 141
 142 static  d_open_t        scdopen;
 143 static  d_close_t       scdclose;
 144 static  d_ioctl_t       scdioctl;
 145 static  d_strategy_t    scdstrategy;
 146
 147
 148 static struct cdevsw scd_cdevsw = {
 149         .d_version =    D_VERSION,
 150         .d_open =       scdopen,
 151         .d_close =      scdclose,
 152         .d_read =       physread,
 153         .d_ioctl =      scdioctl,
 154         .d_strategy =   scdstrategy,
 155         .d_name =       "scd",
 156         .d_flags =      D_DISK | D_NEEDGIANT,
 157 };
 158
 159 int
 160 scd_attach(struct scd_softc *sc)
 161 {
 162         int unit;
 163
 164         unit = device_get_unit(sc->dev);
 165
 166         init_drive(sc);
 167
 168         sc->data.flags = SCDINIT;
 169         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 170         bioq_init(&sc->data.head);
 171
 172         sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit,
 173                 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit);
 174         sc->scd_dev_t->si_drv1 = (void *)sc;
 175         device_printf(sc->dev,
 176             "WARNING: This driver is deprecated and will be removed.\n");
 177
 178         return (0);
 179 }
 180
 181 static  int
 182 scdopen(struct cdev *dev, int flags, int fmt, struct thread *td)
 183 {
 184         struct scd_softc *sc;
 185         int rc;
 186
 187         sc = (struct scd_softc *)dev->si_drv1;
 188
 189         /* not initialized*/
 190         if (!(sc->data.flags & SCDINIT))
 191                 return (ENXIO);
 192
 193         /* invalidated in the meantime? mark all open part's invalid */
 194         if (sc->data.openflag)
 195                 return (ENXIO);
 196
 197         XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS));
 198
 199         if ((rc = spin_up(sc)) != 0) {
 200                 print_error(sc, rc);
 201                 return (EIO);
 202         }
 203         if (!(sc->data.flags & SCDTOC)) {
 204                 int loop_count = 3;
 205
 206                 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) {
 207                         if (rc == ERR_NOT_SPINNING) {
 208                                 rc = spin_up(sc);
 209                                 if (rc) {
 210                                         print_error(sc, rc);\
 211                                         return (EIO);
 212                                 }
 213                                 continue;
 214                         }
 215                         device_printf(sc->dev, "TOC read error 0x%x\n", rc);
 216                         return (EIO);
 217                 }
 218         }
 219
 220         sc->data.openflag = 1;
 221         sc->data.flags |= SCDVALID;
 222
 223         return (0);
 224 }
 225
 226 static  int
 227 scdclose(struct cdev *dev, int flags, int fmt, struct thread *td)
 228 {
 229         struct scd_softc *sc;
 230
 231         sc = (struct scd_softc *)dev->si_drv1;
 232
 233         if (!(sc->data.flags & SCDINIT) || !sc->data.openflag)
 234                 return (ENXIO);
 235
 236         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) {
 237                 (void)send_cmd(sc, CMD_SPIN_DOWN, 0);
 238                 sc->data.flags &= ~SCDSPINNING;
 239         }
 240
 241
 242         /* close channel */
 243         sc->data.openflag = 0;
 244
 245         return (0);
 246 }
 247
 248 static  void
 249 scdstrategy(struct bio *bp)
 250 {
 251         int s;
 252         struct scd_softc *sc;
 253
 254         sc = (struct scd_softc *)bp->bio_dev->si_drv1;
 255
 256         /* if device invalidated (e.g. media change, door open), error */
 257         if (!(sc->data.flags & SCDVALID)) {
 258                 device_printf(sc->dev, "media changed\n");
 259                 bp->bio_error = EIO;
 260                 goto bad;
 261         }
 262
 263         /* read only */
 264         if (!(bp->bio_cmd == BIO_READ)) {
 265                 bp->bio_error = EROFS;
 266                 goto bad;
 267         }
 268
 269         /* no data to read */
 270         if (bp->bio_bcount == 0)
 271                 goto done;
 272
 273         if (!(sc->data.flags & SCDTOC)) {
 274                 bp->bio_error = EIO;
 275                 goto bad;
 276         }
 277
 278         bp->bio_resid = 0;
 279
 280         /* queue it */
 281         s = splbio();
 282         bioq_disksort(&sc->data.head, bp);
 283         splx(s);
 284
 285         /* now check whether we can perform processing */
 286         scd_start(sc);
 287         return;
 288
 289 bad:
 290         bp->bio_flags |= BIO_ERROR;
 291 done:
 292         bp->bio_resid = bp->bio_bcount;
 293         biodone(bp);
 294         return;
 295 }
 296
 297 static void
 298 scd_start(struct scd_softc *sc)
 299 {
 300         struct bio *bp;
 301         int s = splbio();
 302
 303         if (sc->data.flags & SCDMBXBSY) {
 304                 splx(s);
 305                 return;
 306         }
 307
 308         bp = bioq_takefirst(&sc->data.head);
 309         if (bp != 0) {
 310                 /* block found to process, dequeue */
 311                 sc->data.flags |= SCDMBXBSY;
 312                 splx(s);
 313         } else {
 314                 /* nothing to do */
 315                 splx(s);
 316                 return;
 317         }
 318
 319         sc->data.mbx.retry = 3;
 320         sc->data.mbx.bp = bp;
 321         splx(s);
 322
 323         scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx));
 324         return;
 325 }
 326
 327 static  int
 328 scdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
 329 {
 330         struct scd_softc *sc;
 331
 332         sc = (struct scd_softc *)dev->si_drv1;
 333
 334         XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd);
 335
 336         if (!(sc->data.flags & SCDVALID))
 337                 return (EIO);
 338
 339         switch (cmd) {
 340         case DIOCGMEDIASIZE:
 341                 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
 342                 return (0);
 343                 break;
 344         case DIOCGSECTORSIZE:
 345                 *(u_int *)addr = sc->data.blksize;
 346                 return (0);
 347                 break;
 348         case CDIOCPLAYTRACKS:
 349                 return scd_playtracks(sc, (struct ioc_play_track *) addr);
 350         case CDIOCPLAYBLOCKS:
 351                 return (EINVAL);
 352         case CDIOCPLAYMSF:
 353                 return scd_playmsf(sc, (struct ioc_play_msf *) addr);
 354         case CDIOCREADSUBCHANNEL_SYSSPACE:
 355                 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 1);
 356         case CDIOCREADSUBCHANNEL:
 357                 return scd_subchan(sc, (struct ioc_read_subchannel *) addr, 0);
 358         case CDIOREADTOCHEADER:
 359                 return scd_toc_header (sc, (struct ioc_toc_header *) addr);
 360         case CDIOREADTOCENTRYS:
 361                 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr);
 362         case CDIOREADTOCENTRY:
 363                 return scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr);
 364         case CDIOCSETPATCH:
 365         case CDIOCGETVOL:
 366         case CDIOCSETVOL:
 367         case CDIOCSETMONO:
 368         case CDIOCSETSTERIO:
 369         case CDIOCSETMUTE:
 370         case CDIOCSETLEFT:
 371         case CDIOCSETRIGHT:
 372                 return (EINVAL);
 373         case CDIOCRESUME:
 374                 return scd_resume(sc);
 375         case CDIOCPAUSE:
 376                 return scd_pause(sc);
 377         case CDIOCSTART:
 378                 return (EINVAL);
 379         case CDIOCSTOP:
 380                 return scd_stop(sc);
 381         case CDIOCEJECT:
 382                 return scd_eject(sc);
 383         case CDIOCALLOW:
 384                 return (0);
 385         case CDIOCSETDEBUG:
 386 #ifdef SCD_DEBUG
 387                 scd_debuglevel++;
 388 #endif
 389                 return (0);
 390         case CDIOCCLRDEBUG:
 391 #ifdef SCD_DEBUG
 392                 scd_debuglevel = 0;
 393
 394 #endif
 395                 return (0);
 396         default:
 397                 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd);
 398                 return (ENOTTY);
 399         }
 400 }
 401
 402 /***************************************************************
 403  * lower level of driver starts here
 404  **************************************************************/
 405
 406 static int
 407 scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt)
 408 {
 409         struct ioc_play_msf msf;
 410         int a = pt->start_track;
 411         int z = pt->end_track;
 412         int rc;
 413
 414         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
 415                 if (rc == -ERR_NOT_SPINNING) {
 416                         if (spin_up(sc) != 0)
 417                                 return (EIO);
 418                         rc = read_toc(sc);
 419                 }
 420                 if (rc != 0) {
 421                         print_error(sc, rc);
 422                         return (EIO);
 423                 }
 424         }
 425
 426         XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n",
 427                 a, pt->start_index, z, pt->end_index);
 428
 429         if (   a < sc->data.first_track
 430             || a > sc->data.last_track
 431             || a > z
 432             || z > sc->data.last_track)
 433                 return (EINVAL);
 434
 435         bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3);
 436         hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m);
 437
 438         return scd_play(sc, &msf);
 439 }
 440
 441 /* The start/end msf is expected to be in bin format */
 442 static int
 443 scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin)
 444 {
 445         struct ioc_play_msf msf;
 446
 447         msf.start_m = bin2bcd(msfin->start_m);
 448         msf.start_s = bin2bcd(msfin->start_s);
 449         msf.start_f = bin2bcd(msfin->start_f);
 450         msf.end_m = bin2bcd(msfin->end_m);
 451         msf.end_s = bin2bcd(msfin->end_s);
 452         msf.end_f = bin2bcd(msfin->end_f);
 453
 454         return scd_play(sc, &msf);
 455 }
 456
 457 /* The start/end msf is expected to be in bcd format */
 458 static int
 459 scd_play(struct scd_softc *sc, struct ioc_play_msf *msf)
 460 {
 461         int i, rc;
 462
 463         XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n",
 464                 msf->start_m, msf->start_s, msf->start_f,
 465                 msf->end_m, msf->end_s, msf->end_f);
 466
 467         for (i = 0; i < 2; i++) {
 468                 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7,
 469                         0x03,
 470                         msf->start_m, msf->start_s, msf->start_f,
 471                         msf->end_m, msf->end_s, msf->end_f);
 472                 if (rc == -ERR_NOT_SPINNING) {
 473                         sc->data.flags &= ~SCDSPINNING;
 474                         if (spin_up(sc) != 0)
 475                                 return (EIO);
 476                 } else if (rc < 0) {
 477                         print_error(sc, rc);
 478                         return (EIO);
 479                 } else {
 480                         break;
 481                 }
 482         }
 483         sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
 484         bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf));
 485         return (0);
 486 }
 487
 488 static int
 489 scd_stop(struct scd_softc *sc)
 490 {
 491
 492         (void)send_cmd(sc, CMD_STOP_AUDIO, 0);
 493         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
 494         return (0);
 495 }
 496
 497 static int
 498 scd_pause(struct scd_softc *sc)
 499 {
 500         struct sony_subchannel_position_data subpos;
 501
 502         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS)
 503                 return (EINVAL);
 504
 505         if (read_subcode(sc, &subpos) != 0)
 506                 return (EIO);
 507
 508         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0)
 509                 return (EIO);
 510
 511         sc->data.last_play.start_m = subpos.abs_msf[0];
 512         sc->data.last_play.start_s = subpos.abs_msf[1];
 513         sc->data.last_play.start_f = subpos.abs_msf[2];
 514         sc->data.audio_status = CD_AS_PLAY_PAUSED;
 515
 516         XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n",
 517                 sc->data.last_play.start_m,
 518                 sc->data.last_play.start_s,
 519                 sc->data.last_play.start_f);
 520
 521         return (0);
 522 }
 523
 524 static int
 525 scd_resume(struct scd_softc *sc)
 526 {
 527
 528         if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
 529                 return (EINVAL);
 530         return scd_play(sc, &sc->data.last_play);
 531 }
 532
 533 static int
 534 scd_eject(struct scd_softc *sc)
 535 {
 536
 537         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 538         sc->data.flags &= ~(SCDSPINNING|SCDTOC);
 539
 540         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 ||
 541             send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 ||
 542             send_cmd(sc, CMD_EJECT, 0) != 0)
 543         {
 544                 return (EIO);
 545         }
 546         return (0);
 547 }
 548
 549 static int
 550 scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch, int nocopyout)
 551 {
 552         struct sony_subchannel_position_data q;
 553         struct cd_sub_channel_info data;
 554
 555         XDEBUG(sc, 1, "subchan af=%d, df=%d\n",
 556                 sch->address_format, sch->data_format);
 557
 558         if (sch->address_format != CD_MSF_FORMAT)
 559                 return (EINVAL);
 560
 561         if (sch->data_format != CD_CURRENT_POSITION)
 562                 return (EINVAL);
 563
 564         if (read_subcode(sc, &q) != 0)
 565                 return (EIO);
 566
 567         data.header.audio_status = sc->data.audio_status;
 568         data.what.position.data_format = CD_MSF_FORMAT;
 569         data.what.position.track_number = bcd2bin(q.track_number);
 570         data.what.position.reladdr.msf.unused = 0;
 571         data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]);
 572         data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]);
 573         data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]);
 574         data.what.position.absaddr.msf.unused = 0;
 575         data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]);
 576         data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]);
 577         data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]);
 578
 579         if (nocopyout == 0) {
 580                 if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0)
 581                         return (EFAULT);
 582         } else {
 583                 bcopy(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len));
 584         }
 585         return (0);
 586 }
 587
 588 int
 589 scd_probe(struct scd_softc *sc)
 590 {
 591         struct sony_drive_configuration drive_config;
 592         int rc;
 593         static char namebuf[8+16+8+3];
 594         char *s = namebuf;
 595         int loop_count = 0;
 596
 597         sc->data.flags = SCDPROBING;
 598
 599         bzero(&drive_config, sizeof(drive_config));
 600
 601 again:
 602         /* Reset drive */
 603         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE);
 604
 605         /* Calm down */
 606         DELAY(300000);
 607
 608         /* Only the ATTENTION bit may be set */
 609         if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) {
 610                 XDEBUG(sc, 1, "too many bits set. probe failed.\n");
 611                 return (ENXIO);
 612         }
 613         rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0);
 614         if (rc != sizeof(drive_config)) {
 615                 /* Sometimes if the drive is playing audio I get */
 616                 /* the bad result 82. Fix by repeating the reset */
 617                 if (rc > 0 && loop_count++ == 0)
 618                         goto again;
 619                 return (ENXIO);
 620         }
 621         if (get_result(sc, rc, (u_char *)&drive_config) != 0)
 622                 return (ENXIO);
 623
 624         bcopy(drive_config.vendor, namebuf, 8);
 625         s = namebuf+8;
 626         while (*(s-1) == ' ')   /* Strip trailing spaces */
 627                 s--;
 628         *s++ = ' ';
 629         bcopy(drive_config.product, s, 16);
 630         s += 16;
 631         while (*(s-1) == ' ')
 632                 s--;
 633         *s++ = ' ';
 634         bcopy(drive_config.revision, s, 8);
 635         s += 8;
 636         while (*(s-1) == ' ')
 637                 s--;
 638         *s = 0;
 639
 640         sc->data.name = namebuf;
 641
 642         if (drive_config.config & 0x10)
 643                 sc->data.double_speed = 1;
 644         else
 645                 sc->data.double_speed = 0;
 646
 647         return (0);
 648 }
 649
 650 static int
 651 read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp)
 652 {
 653         int rc;
 654
 655         rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0);
 656         if (rc < 0 || rc < sizeof(*scp))
 657                 return (EIO);
 658         if (get_result(sc, rc, (u_char *)scp) != 0)
 659                 return (EIO);
 660         return (0);
 661 }
 662
 663 /* State machine copied from mcd.c */
 664
 665 /* This (and the code in mcd.c) will not work with more than one drive */
 666 /* because there is only one sc->ch_mbxsave below. Should fix that some day. */
 667 /* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */
 668 /*  the unit number used as first argument to scd_doread().) /Micke */
 669
 670 /* state machine to process read requests
 671  * initialize with SCD_S_BEGIN: reset state machine
 672  * SCD_S_WAITSTAT:  wait for ready (!busy)
 673  * SCD_S_WAITSPIN:  wait for drive to spin up (if not spinning)
 674  * SCD_S_WAITFIFO:  wait for param fifo to get ready, them exec. command.
 675  * SCD_S_WAITREAD:  wait for data ready, read data
 676  * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read.
 677  */
 678
 679 static void
 680 scd_timeout(void *arg)
 681 {
 682         struct scd_softc *sc;
 683         sc = (struct scd_softc *)arg;
 684
 685         scd_doread(sc, sc->ch_state, sc->ch_mbxsave);
 686 }
 687
 688 static void
 689 scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin)
 690 {
 691         struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
 692         struct  bio *bp = mbx->bp;
 693         int     i;
 694         int     blknum;
 695         caddr_t addr;
 696         static char sdata[3];   /* Must be preserved between calls to this function */
 697
 698 loop:
 699         switch (state) {
 700         case SCD_S_BEGIN:
 701                 mbx = sc->ch_mbxsave = mbxin;
 702
 703         case SCD_S_BEGIN1:
 704                 /* get status */
 705                 mbx->count = RDELAY_WAIT;
 706
 707                 process_attention(sc);
 708                 goto trystat;
 709
 710         case SCD_S_WAITSTAT:
 711                 sc->ch_state = SCD_S_WAITSTAT;
 712                 untimeout(scd_timeout, (caddr_t)sc, sc->ch);
 713                 if (mbx->count-- <= 0) {
 714                         device_printf(sc->dev, "timeout. drive busy.\n");
 715                         goto harderr;
 716                 }
 717
 718 trystat:
 719                 if (IS_BUSY(sc)) {
 720                         sc->ch_state = SCD_S_WAITSTAT;
 721                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 722                         return;
 723                 }
 724
 725                 process_attention(sc);
 726
 727                 /* reject, if audio active */
 728                 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) {
 729                         device_printf(sc->dev, "audio is active\n");
 730                         goto harderr;
 731                 }
 732
 733                 mbx->sz = sc->data.blksize;
 734
 735                 /* for first block */
 736                 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
 737                 mbx->skip = 0;
 738
 739 nextblock:
 740                 if (!(sc->data.flags & SCDVALID))
 741                         goto changed;
 742
 743                 blknum  = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
 744
 745                 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum);
 746
 747                 /* build parameter block */
 748                 hsg2msf(blknum, sdata);
 749
 750                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 751                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
 752                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 753
 754                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
 755                         goto writeparam;
 756
 757                 mbx->count = 100;
 758                 sc->ch_state = SCD_S_WAITFIFO;
 759                 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 760                 return;
 761
 762         case SCD_S_WAITSPIN:
 763                 sc->ch_state = SCD_S_WAITSPIN;
 764                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 765                 if (mbx->count-- <= 0) {
 766                         device_printf(sc->dev, "timeout waiting for drive to spin up.\n");
 767                         goto harderr;
 768                 }
 769                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 770                         sc->ch_state = SCD_S_WAITSPIN;
 771                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 772                         return;
 773                 }
 774                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 775                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 776                 case 0x20:
 777                         i = SCD_READ(sc, IREG_RESULT);
 778                         print_error(sc, i);
 779                         goto harderr;
 780                 case 0x00:
 781                         (void)SCD_READ(sc, IREG_RESULT);
 782                         sc->data.flags |= SCDSPINNING;
 783                         break;
 784                 }
 785                 XDEBUG(sc, 1, "DEBUG: spin up complete\n");
 786
 787                 state = SCD_S_BEGIN1;
 788                 goto loop;
 789
 790         case SCD_S_WAITFIFO:
 791                 sc->ch_state = SCD_S_WAITFIFO;
 792                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 793                 if (mbx->count-- <= 0) {
 794                         device_printf(sc->dev, "timeout. write param not ready.\n");
 795                         goto harderr;
 796                 }
 797                 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
 798                         sc->ch_state = SCD_S_WAITFIFO;
 799                         sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */
 800                         return;
 801                 }
 802                 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100);
 803
 804 writeparam:
 805                 /* The reason this test isn't done 'till now is to make sure */
 806                 /* that it is ok to send the SPIN_UP cmd below. */
 807                 if (!(sc->data.flags & SCDSPINNING)) {
 808                         XDEBUG(sc, 1, "spinning up drive ...\n");
 809                         SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP);
 810                         mbx->count = 300;
 811                         sc->ch_state = SCD_S_WAITSPIN;
 812                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 813                         return;
 814                 }
 815
 816                 /* send the read command */
 817                 critical_enter();
 818                 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]);
 819                 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]);
 820                 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]);
 821                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 822                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 823                 SCD_WRITE(sc, OREG_WPARAMS, 1);
 824                 SCD_WRITE(sc, OREG_COMMAND, CMD_READ);
 825                 critical_exit();
 826
 827                 mbx->count = RDELAY_WAITREAD;
 828                 for (i = 0; i < 50; i++) {
 829                         if (STATUS_BIT(sc, SBIT_DATA_READY))
 830                                 goto got_data;
 831                         DELAY(100);
 832                 }
 833
 834                 sc->ch_state = SCD_S_WAITREAD;
 835                 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 836                 return;
 837
 838         case SCD_S_WAITREAD:
 839                 sc->ch_state = SCD_S_WAITREAD;
 840                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 841                 if (mbx->count-- <= 0) {
 842                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 843                                 goto got_param;
 844                         device_printf(sc->dev, "timeout while reading data\n");
 845                         goto readerr;
 846                 }
 847                 if (!STATUS_BIT(sc, SBIT_DATA_READY)) {
 848                         process_attention(sc);
 849                         if (!(sc->data.flags & SCDVALID))
 850                                 goto changed;
 851                         sc->ch_state = SCD_S_WAITREAD;
 852                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 853                         return;
 854                 }
 855                 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD);
 856
 857 got_data:
 858                 /* data is ready */
 859                 addr = bp->bio_data + mbx->skip;
 860                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 861                 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz);
 862
 863                 mbx->count = 100;
 864                 for (i = 0; i < 20; i++) {
 865                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 866                                 goto waitfor_param;
 867                         DELAY(100);
 868                 }
 869                 goto waitfor_param;
 870
 871         case SCD_S_WAITPARAM:
 872                 sc->ch_state = SCD_S_WAITPARAM;
 873                 untimeout(scd_timeout,(caddr_t)sc, sc->ch);
 874                 if (mbx->count-- <= 0) {
 875                         device_printf(sc->dev, "timeout waiting for params\n");
 876                         goto readerr;
 877                 }
 878
 879 waitfor_param:
 880                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 881                         sc->ch_state = SCD_S_WAITPARAM;
 882                         sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */
 883                         return;
 884                 }
 885 #ifdef SCD_DEBUG
 886                 if (mbx->count < 100 && scd_debuglevel > 0)
 887                         device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100);
 888 #endif
 889
 890 got_param:
 891                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 892                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 893                 case 0x50:
 894                         switch (i) {
 895                         case ERR_FATAL_READ_ERROR1:
 896                         case ERR_FATAL_READ_ERROR2:
 897                                 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i);
 898                                 goto harderr;
 899                         }
 900                         break;
 901                 case 0x20:
 902                         i = SCD_READ(sc, IREG_RESULT);
 903                         switch (i) {
 904                         case ERR_NOT_SPINNING:
 905                                 XDEBUG(sc, 1, "read error: drive not spinning\n");
 906                                 if (mbx->retry-- > 0) {
 907                                         state = SCD_S_BEGIN1;
 908                                         sc->data.flags &= ~SCDSPINNING;
 909                                         goto loop;
 910                                 }
 911                                 goto harderr;
 912                         default:
 913                                 print_error(sc, i);
 914                                 goto readerr;
 915                         }
 916                 case 0x00:
 917                         i = SCD_READ(sc, IREG_RESULT);
 918                         break;
 919                 }
 920
 921                 if (--mbx->nblk > 0) {
 922                         mbx->skip += mbx->sz;
 923                         goto nextblock;
 924                 }
 925
 926                 /* return buffer */
 927                 bp->bio_resid = 0;
 928                 biodone(bp);
 929
 930                 sc->data.flags &= ~SCDMBXBSY;
 931                 scd_start(sc);
 932                 return;
 933         }
 934
 935 readerr:
 936         if (mbx->retry-- > 0) {
 937                 device_printf(sc->dev, "retrying ...\n");
 938                 state = SCD_S_BEGIN1;
 939                 goto loop;
 940         }
 941 harderr:
 942         /* invalidate the buffer */
 943         bp->bio_error = EIO;
 944         bp->bio_flags |= BIO_ERROR;
 945         bp->bio_resid = bp->bio_bcount;
 946         biodone(bp);
 947
 948         sc->data.flags &= ~SCDMBXBSY;
 949         scd_start(sc);
 950         return;
 951
 952 changed:
 953         device_printf(sc->dev, "media changed\n");
 954         goto harderr;
 955 }
 956
 957 static void
 958 hsg2msf(int hsg, bcd_t *msf)
 959 {
 960
 961         hsg += 150;
 962         M_msf(msf) = bin2bcd(hsg / 4500);
 963         hsg %= 4500;
 964         S_msf(msf) = bin2bcd(hsg / 75);
 965         F_msf(msf) = bin2bcd(hsg % 75);
 966 }
 967
 968 static int
 969 msf2hsg(bcd_t *msf)
 970 {
 971
 972         return (bcd2bin(M_msf(msf)) * 60 +
 973                 bcd2bin(S_msf(msf))) * 75 +
 974                 bcd2bin(F_msf(msf)) - 150;
 975 }
 976
 977 static void
 978 process_attention(struct scd_softc *sc)
 979 {
 980         unsigned char code;
 981         int count = 0;
 982
 983         while (IS_ATTENTION(sc) && count++ < 30) {
 984                 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR);
 985                 code = SCD_READ(sc, IREG_RESULT);
 986
 987 #ifdef SCD_DEBUG
 988                 if (scd_debuglevel > 0) {
 989                         if (count == 1)
 990                                 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code);
 991                         else
 992                                 printf(",0x%x", code);
 993                 }
 994 #endif
 995
 996                 switch (code) {
 997                 case ATTEN_SPIN_DOWN:
 998                         sc->data.flags &= ~SCDSPINNING;
 999                         break;
1000
1001                 case ATTEN_SPIN_UP_DONE:
1002                         sc->data.flags |= SCDSPINNING;
1003                         break;
1004
1005                 case ATTEN_AUDIO_DONE:
1006                         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
1007                         break;
1008
1009                 case ATTEN_DRIVE_LOADED:
1010                         sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID);
1011                         sc->data.audio_status = CD_AS_AUDIO_INVALID;
1012                         break;
1013
1014                 case ATTEN_EJECT_PUSHED:
1015                         sc->data.flags &= ~SCDVALID;
1016                         break;
1017                 }
1018                 DELAY(100);
1019         }
1020 #ifdef SCD_DEBUG
1021         if (scd_debuglevel > 0 && count > 0)
1022                 printf("\n");
1023 #endif
1024 }
1025
1026 /* Returns 0 OR sony error code */
1027 static int
1028 spin_up(struct scd_softc *sc)
1029 {
1030         unsigned char res_reg[12];
1031         unsigned int res_size;
1032         int rc;
1033         int loop_count = 0;
1034
1035 again:
1036         rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
1037         if (rc != 0) {
1038                 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc);
1039                 return (rc);
1040         }
1041
1042         if (!(sc->data.flags & SCDTOC)) {
1043                 rc = send_cmd(sc, CMD_READ_TOC, 0);
1044                 if (rc == ERR_NOT_SPINNING) {
1045                         if (loop_count++ < 3)
1046                                 goto again;
1047                         return (rc);
1048                 }
1049                 if (rc != 0)
1050                         return (rc);
1051         }
1052
1053         sc->data.flags |= SCDSPINNING;
1054
1055         return (0);
1056 }
1057
1058 static struct sony_tracklist *
1059 get_tl(struct sony_toc *toc, int size)
1060 {
1061         struct sony_tracklist *tl = &toc->tracks[0];
1062
1063         if (tl->track != 0xb0)
1064                 return (tl);
1065         if (tl->track != 0xb1)
1066                 return (tl);
1067         tl = (struct sony_tracklist *)((char *)tl + 9);
1068         if (tl->track != 0xb2)
1069                 return (tl);
1070         tl = (struct sony_tracklist *)((char *)tl + 9);
1071         if (tl->track != 0xb3)
1072                 return (tl);
1073         tl = (struct sony_tracklist *)((char *)tl + 9);
1074         if (tl->track != 0xb4)
1075                 return (tl);
1076         tl = (struct sony_tracklist *)((char *)tl + 9);
1077         if (tl->track != 0xc0)
1078                 return (tl);
1079         tl = (struct sony_tracklist *)((char *)tl + 9);
1080         return (tl);
1081 }
1082
1083 static int
1084 read_toc(struct scd_softc *sc)
1085 {
1086         struct sony_toc toc;
1087         struct sony_tracklist *tl;
1088         int rc, i, j;
1089         u_long first, last;
1090
1091         rc = send_cmd(sc, CMD_GET_TOC, 1, 1);
1092         if (rc < 0)
1093                 return (rc);
1094         if (rc > sizeof(toc)) {
1095                 device_printf(sc->dev, "program error: toc too large (%d)\n", rc);
1096                 return (EIO);
1097         }
1098         if (get_result(sc, rc, (u_char *)&toc) != 0)
1099                 return (EIO);
1100
1101         XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc));
1102
1103         tl = get_tl(&toc, rc);
1104         first = msf2hsg(tl->start_msf);
1105         last = msf2hsg(toc.lead_out_start_msf);
1106         sc->data.blksize = SCDBLKSIZE;
1107         sc->data.disksize = last*sc->data.blksize/DEV_BSIZE;
1108
1109         XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last);
1110
1111         sc->data.first_track = bcd2bin(toc.first_track);
1112         sc->data.last_track = bcd2bin(toc.last_track);
1113         if (sc->data.last_track > (MAX_TRACKS-2))
1114                 sc->data.last_track = MAX_TRACKS-2;
1115         for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) {
1116                 sc->data.toc[i].adr = tl[j].adr;
1117                 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */
1118                 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3);
1119 #ifdef SCD_DEBUG
1120                 if (scd_debuglevel > 0) {
1121                         if ((j % 3) == 0) {
1122                                 printf("\n");
1123                                 device_printf(sc->dev, "tracks ");
1124                         }
1125                         printf("[%03d: %2d %2d %2d]  ", i,
1126                                 bcd2bin(sc->data.toc[i].start_msf[0]),
1127                                 bcd2bin(sc->data.toc[i].start_msf[1]),
1128                                 bcd2bin(sc->data.toc[i].start_msf[2]));
1129                 }
1130 #endif
1131         }
1132         bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3);
1133 #ifdef SCD_DEBUG
1134         if (scd_debuglevel > 0) {
1135                 i = sc->data.last_track+1;
1136                 printf("[END: %2d %2d %2d]\n",
1137                         bcd2bin(sc->data.toc[i].start_msf[0]),
1138                         bcd2bin(sc->data.toc[i].start_msf[1]),
1139                         bcd2bin(sc->data.toc[i].start_msf[2]));
1140         }
1141 #endif
1142
1143         sc->data.flags |= SCDTOC;
1144
1145         return (0);
1146 }
1147
1148 static void
1149 init_drive(struct scd_softc *sc)
1150 {
1151         int rc;
1152
1153         rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2,
1154                 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0));
1155         if (rc != 0)
1156                 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc);
1157 }
1158
1159 /* Returns 0 or errno */
1160 static int
1161 get_result(struct scd_softc *sc, int result_len, u_char *result)
1162 {
1163         int loop_index = 2; /* send_cmd() reads two bytes ... */
1164
1165         XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len);
1166
1167         while (result_len-- > 0) {
1168                 if (loop_index++ >= 10) {
1169                         loop_index = 1;
1170                         if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0))
1171                                 return (EIO);
1172                         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1173                 }
1174                 if (result)
1175                         *result++ = SCD_READ(sc, IREG_RESULT);
1176                 else
1177                         (void)SCD_READ(sc, IREG_RESULT);
1178         }
1179         return (0);
1180 }
1181
1182 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */
1183 static int
1184 send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...)
1185 {
1186         va_list ap;
1187         u_char c;
1188         int rc;
1189         int i;
1190
1191         if (waitfor_status_bits(sc, 0, SBIT_BUSY)) {
1192                 device_printf(sc->dev, "drive busy\n");
1193                 return (-0x100);
1194         }
1195
1196         XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs);
1197
1198         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1199         SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
1200
1201         for (i = 0; i < 100; i++)
1202                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
1203                         break;
1204         if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
1205                 XDEBUG(sc, 1, "\nwparam timeout\n");
1206                 return (-EIO);
1207         }
1208
1209         va_start(ap, nargs);
1210         for (i = 0; i < nargs; i++) {
1211                 c = (u_char)va_arg(ap, int);
1212                 SCD_WRITE(sc, OREG_WPARAMS, c);
1213                 XDEBUG(sc, 1, ",{0x%x}", c);
1214         }
1215         va_end(ap);
1216         XDEBUG(sc, 1, "\n");
1217
1218         SCD_WRITE(sc, OREG_COMMAND, cmd);
1219
1220         rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY);
1221         if (rc)
1222                 return (-0x100);
1223
1224         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1225         switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
1226         case 0x20:
1227                 rc = SCD_READ(sc, IREG_RESULT);
1228                 /* FALLTHROUGH */
1229         case 0x50:
1230                 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc);
1231                 return (-rc);
1232         case 0x00:
1233         default:
1234                 rc = SCD_READ(sc, IREG_RESULT);
1235                 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc);
1236                 return (rc);
1237         }
1238 }
1239
1240 static void
1241 print_error(struct scd_softc *sc, int errcode)
1242 {
1243
1244         switch (errcode) {
1245         case -ERR_CD_NOT_LOADED:
1246                 device_printf(sc->dev, "door is open\n");
1247                 break;
1248         case -ERR_NO_CD_INSIDE:
1249                 device_printf(sc->dev, "no cd inside\n");
1250                 break;
1251         default:
1252                 if (errcode == -0x100 || errcode > 0)
1253                         device_printf(sc->dev, "device timeout\n");
1254                 else
1255                         device_printf(sc->dev, "unexpected error 0x%x\n", -errcode);
1256                 break;
1257         }
1258 }
1259
1260 /* Returns 0 or errno value */
1261 static int
1262 waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear)
1263 {
1264         u_int flags = sc->data.flags;
1265         u_int max_loop;
1266         u_char c = 0;
1267
1268         if (flags & SCDPROBING) {
1269                 max_loop = 0;
1270                 while (max_loop++ < 1000) {
1271                         c = SCD_READ(sc, IREG_STATUS);
1272                         if (c == 0xff)
1273                                 return (EIO);
1274                         if (c & SBIT_ATTENTION) {
1275                                 process_attention(sc);
1276                                 continue;
1277                         }
1278                         if ((c & bits_set) == bits_set &&
1279                             (c & bits_clear) == 0)
1280                         {
1281                                 break;
1282                         }
1283                         DELAY(10000);
1284                 }
1285         } else {
1286                 max_loop = 100;
1287                 while (max_loop-- > 0) {
1288                         c = SCD_READ(sc, IREG_STATUS);
1289                         if (c & SBIT_ATTENTION) {
1290                                 process_attention(sc);
1291                                 continue;
1292                         }
1293                         if ((c & bits_set) == bits_set &&
1294                             (c & bits_clear) == 0)
1295                         {
1296                                 break;
1297                         }
1298                         pause("waitfor", hz/10);
1299                 }
1300         }
1301         if ((c & bits_set) == bits_set &&
1302             (c & bits_clear) == 0)
1303         {
1304                 return (0);
1305         }
1306 #ifdef SCD_DEBUG
1307         if (scd_debuglevel > 0)
1308                 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear);
1309         else
1310 #endif
1311                 device_printf(sc->dev, "timeout.\n");
1312         return (EIO);
1313 }
1314
1315 /* these two routines for xcdplayer - "borrowed" from mcd.c */
1316 static int
1317 scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th)
1318 {
1319         int rc;
1320
1321         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1322                 print_error(sc, rc);
1323                 return (EIO);
1324         }
1325
1326         th->starting_track = sc->data.first_track;
1327         th->ending_track = sc->data.last_track;
1328         th->len = 0; /* not used */
1329
1330         return (0);
1331 }
1332
1333 static int
1334 scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te)
1335 {
1336         struct cd_toc_entry toc_entry;
1337         int rc, i, len = te->data_len;
1338
1339         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1340                 print_error(sc, rc);
1341                 return (EIO);
1342         }
1343
1344         /* find the toc to copy*/
1345         i = te->starting_track;
1346         if (i == SCD_LASTPLUS1)
1347                 i = sc->data.last_track + 1;
1348
1349         /* verify starting track */
1350         if (i < sc->data.first_track || i > sc->data.last_track+1)
1351                 return (EINVAL);
1352
1353         /* valid length ? */
1354         if (len < sizeof(struct cd_toc_entry)
1355             || (len % sizeof(struct cd_toc_entry)) != 0)
1356                 return (EINVAL);
1357
1358         /* copy the toc data */
1359         toc_entry.control = sc->data.toc[i].ctl;
1360         toc_entry.addr_type = te->address_format;
1361         toc_entry.track = i;
1362         if (te->address_format == CD_MSF_FORMAT) {
1363                 toc_entry.addr.msf.unused = 0;
1364                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1365                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1366                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1367         }
1368
1369         /* copy the data back */
1370         if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0)
1371                 return (EFAULT);
1372
1373         return (0);
1374 }
1375
1376
1377 static int
1378 scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te)
1379 {
1380         struct cd_toc_entry toc_entry;
1381         int rc, i;
1382
1383         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1384                 print_error(sc, rc);
1385                 return (EIO);
1386         }
1387
1388         /* find the toc to copy*/
1389         i = te->track;
1390         if (i == SCD_LASTPLUS1)
1391                 i = sc->data.last_track + 1;
1392
1393         /* verify starting track */
1394         if (i < sc->data.first_track || i > sc->data.last_track+1)
1395                 return (EINVAL);
1396
1397         /* copy the toc data */
1398         toc_entry.control = sc->data.toc[i].ctl;
1399         toc_entry.addr_type = te->address_format;
1400         toc_entry.track = i;
1401         if (te->address_format == CD_MSF_FORMAT) {
1402                 toc_entry.addr.msf.unused = 0;
1403                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1404                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1405                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1406         }
1407
1408         /* copy the data back */
1409         bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry));
1410
1411         return (0);
1412 }