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 void scd_timeout(void *);
 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);
 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,
 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         SCD_LOCK(sc);
 167         init_drive(sc);
 168
 169         sc->data.flags = SCDINIT;
 170         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 171         bioq_init(&sc->data.head);
 172         SCD_UNLOCK(sc);
 173
 174         sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit,
 175                 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit);
 176         sc->scd_dev_t->si_drv1 = (void *)sc;
 177         device_printf(sc->dev,
 178             "WARNING: This driver is deprecated and will be removed.\n");
 179
 180         return (0);
 181 }
 182
 183 static  int
 184 scdopen(struct cdev *dev, int flags, int fmt, struct thread *td)
 185 {
 186         struct scd_softc *sc;
 187         int rc;
 188
 189         sc = (struct scd_softc *)dev->si_drv1;
 190
 191         /* mark all open part's invalid */
 192         SCD_LOCK(sc);
 193         if (sc->data.openflag) {
 194                 SCD_UNLOCK(sc);
 195                 return (ENXIO);
 196         }
 197
 198         XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS));
 199
 200         if ((rc = spin_up(sc)) != 0) {
 201                 print_error(sc, rc);
 202                 SCD_UNLOCK(sc);
 203                 return (EIO);
 204         }
 205         if (!(sc->data.flags & SCDTOC)) {
 206                 int loop_count = 3;
 207
 208                 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) {
 209                         if (rc == ERR_NOT_SPINNING) {
 210                                 rc = spin_up(sc);
 211                                 if (rc) {
 212                                         print_error(sc, rc);
 213                                         SCD_UNLOCK(sc);
 214                                         return (EIO);
 215                                 }
 216                                 continue;
 217                         }
 218                         device_printf(sc->dev, "TOC read error 0x%x\n", rc);
 219                         SCD_UNLOCK(sc);
 220                         return (EIO);
 221                 }
 222         }
 223
 224         sc->data.openflag = 1;
 225         sc->data.flags |= SCDVALID;
 226         SCD_UNLOCK(sc);
 227
 228         return (0);
 229 }
 230
 231 static  int
 232 scdclose(struct cdev *dev, int flags, int fmt, struct thread *td)
 233 {
 234         struct scd_softc *sc;
 235
 236         sc = (struct scd_softc *)dev->si_drv1;
 237
 238         SCD_LOCK(sc);
 239         KASSERT(sc->data.openflag, ("device not open"));
 240
 241         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) {
 242                 (void)send_cmd(sc, CMD_SPIN_DOWN, 0);
 243                 sc->data.flags &= ~SCDSPINNING;
 244         }
 245
 246         /* close channel */
 247         sc->data.openflag = 0;
 248         SCD_UNLOCK(sc);
 249
 250         return (0);
 251 }
 252
 253 static  void
 254 scdstrategy(struct bio *bp)
 255 {
 256         struct scd_softc *sc;
 257
 258         sc = (struct scd_softc *)bp->bio_dev->si_drv1;
 259
 260         /* if device invalidated (e.g. media change, door open), error */
 261         SCD_LOCK(sc);
 262         if (!(sc->data.flags & SCDVALID)) {
 263                 device_printf(sc->dev, "media changed\n");
 264                 bp->bio_error = EIO;
 265                 goto bad;
 266         }
 267
 268         /* read only */
 269         if (!(bp->bio_cmd == BIO_READ)) {
 270                 bp->bio_error = EROFS;
 271                 goto bad;
 272         }
 273
 274         /* no data to read */
 275         if (bp->bio_bcount == 0)
 276                 goto done;
 277
 278         if (!(sc->data.flags & SCDTOC)) {
 279                 bp->bio_error = EIO;
 280                 goto bad;
 281         }
 282
 283         bp->bio_resid = 0;
 284
 285         /* queue it */
 286         bioq_disksort(&sc->data.head, bp);
 287
 288         /* now check whether we can perform processing */
 289         scd_start(sc);
 290         SCD_UNLOCK(sc);
 291         return;
 292
 293 bad:
 294         bp->bio_flags |= BIO_ERROR;
 295 done:
 296         SCD_UNLOCK(sc);
 297         bp->bio_resid = bp->bio_bcount;
 298         biodone(bp);
 299         return;
 300 }
 301
 302 static void
 303 scd_start(struct scd_softc *sc)
 304 {
 305         struct bio *bp;
 306
 307         SCD_ASSERT_LOCKED(sc);
 308         if (sc->data.flags & SCDMBXBSY)
 309                 return;
 310
 311         bp = bioq_takefirst(&sc->data.head);
 312         if (bp != 0) {
 313                 /* block found to process, dequeue */
 314                 sc->data.flags |= SCDMBXBSY;
 315         } else {
 316                 /* nothing to do */
 317                 return;
 318         }
 319
 320         sc->data.mbx.retry = 3;
 321         sc->data.mbx.bp = bp;
 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         int error;
 332
 333         sc = (struct scd_softc *)dev->si_drv1;
 334
 335         XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd);
 336
 337         SCD_LOCK(sc);
 338         if (!(sc->data.flags & SCDVALID)) {
 339                 SCD_UNLOCK(sc);
 340                 return (EIO);
 341         }
 342
 343         error = 0;
 344         switch (cmd) {
 345         case DIOCGMEDIASIZE:
 346                 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize;
 347                 break;
 348         case DIOCGSECTORSIZE:
 349                 *(u_int *)addr = sc->data.blksize;
 350                 break;
 351         case CDIOCPLAYTRACKS:
 352                 error = scd_playtracks(sc, (struct ioc_play_track *) addr);
 353                 break;
 354         case CDIOCPLAYBLOCKS:
 355                 error = EINVAL;
 356                 break;
 357         case CDIOCPLAYMSF:
 358                 error = scd_playmsf(sc, (struct ioc_play_msf *) addr);
 359                 break;
 360         case CDIOCREADSUBCHANNEL:
 361                 return scd_subchan(sc, (struct ioc_read_subchannel *) addr);
 362         case CDIOREADTOCHEADER:
 363                 error = scd_toc_header (sc, (struct ioc_toc_header *) addr);
 364                 break;
 365         case CDIOREADTOCENTRYS:
 366                 return scd_toc_entrys (sc, (struct ioc_read_toc_entry*) addr);
 367         case CDIOREADTOCENTRY:
 368                 error = scd_toc_entry (sc, (struct ioc_read_toc_single_entry*) addr);
 369                 break;
 370         case CDIOCSETPATCH:
 371         case CDIOCGETVOL:
 372         case CDIOCSETVOL:
 373         case CDIOCSETMONO:
 374         case CDIOCSETSTERIO:
 375         case CDIOCSETMUTE:
 376         case CDIOCSETLEFT:
 377         case CDIOCSETRIGHT:
 378                 error = EINVAL;
 379                 break;
 380         case CDIOCRESUME:
 381                 error = scd_resume(sc);
 382                 break;
 383         case CDIOCPAUSE:
 384                 error = scd_pause(sc);
 385                 break;
 386         case CDIOCSTART:
 387                 error = EINVAL;
 388                 break;
 389         case CDIOCSTOP:
 390                 error = scd_stop(sc);
 391                 break;
 392         case CDIOCEJECT:
 393                 error = scd_eject(sc);
 394                 break;
 395         case CDIOCALLOW:
 396                 break;
 397         case CDIOCSETDEBUG:
 398 #ifdef SCD_DEBUG
 399                 scd_debuglevel++;
 400 #endif
 401                 break;
 402         case CDIOCCLRDEBUG:
 403 #ifdef SCD_DEBUG
 404                 scd_debuglevel = 0;
 405
 406 #endif
 407                 break;
 408         default:
 409                 device_printf(sc->dev, "unsupported ioctl (cmd=0x%lx)\n", cmd);
 410                 error = ENOTTY;
 411                 break;
 412         }
 413         SCD_UNLOCK(sc);
 414         return (error);
 415 }
 416
 417 /***************************************************************
 418  * lower level of driver starts here
 419  **************************************************************/
 420
 421 static int
 422 scd_playtracks(struct scd_softc *sc, struct ioc_play_track *pt)
 423 {
 424         struct ioc_play_msf msf;
 425         int a = pt->start_track;
 426         int z = pt->end_track;
 427         int rc;
 428
 429         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
 430                 if (rc == -ERR_NOT_SPINNING) {
 431                         if (spin_up(sc) != 0)
 432                                 return (EIO);
 433                         rc = read_toc(sc);
 434                 }
 435                 if (rc != 0) {
 436                         print_error(sc, rc);
 437                         return (EIO);
 438                 }
 439         }
 440
 441         XDEBUG(sc, 1, "playtracks from %d:%d to %d:%d\n",
 442                 a, pt->start_index, z, pt->end_index);
 443
 444         if (   a < sc->data.first_track
 445             || a > sc->data.last_track
 446             || a > z
 447             || z > sc->data.last_track)
 448                 return (EINVAL);
 449
 450         bcopy(sc->data.toc[a].start_msf, &msf.start_m, 3);
 451         hsg2msf(msf2hsg(sc->data.toc[z+1].start_msf)-1, &msf.end_m);
 452
 453         return scd_play(sc, &msf);
 454 }
 455
 456 /* The start/end msf is expected to be in bin format */
 457 static int
 458 scd_playmsf(struct scd_softc *sc, struct ioc_play_msf *msfin)
 459 {
 460         struct ioc_play_msf msf;
 461
 462         msf.start_m = bin2bcd(msfin->start_m);
 463         msf.start_s = bin2bcd(msfin->start_s);
 464         msf.start_f = bin2bcd(msfin->start_f);
 465         msf.end_m = bin2bcd(msfin->end_m);
 466         msf.end_s = bin2bcd(msfin->end_s);
 467         msf.end_f = bin2bcd(msfin->end_f);
 468
 469         return scd_play(sc, &msf);
 470 }
 471
 472 /* The start/end msf is expected to be in bcd format */
 473 static int
 474 scd_play(struct scd_softc *sc, struct ioc_play_msf *msf)
 475 {
 476         int i, rc;
 477
 478         XDEBUG(sc, 1, "playing: %02x:%02x:%02x -> %02x:%02x:%02x\n",
 479                 msf->start_m, msf->start_s, msf->start_f,
 480                 msf->end_m, msf->end_s, msf->end_f);
 481
 482         for (i = 0; i < 2; i++) {
 483                 rc = send_cmd(sc, CMD_PLAY_AUDIO, 7,
 484                         0x03,
 485                         msf->start_m, msf->start_s, msf->start_f,
 486                         msf->end_m, msf->end_s, msf->end_f);
 487                 if (rc == -ERR_NOT_SPINNING) {
 488                         sc->data.flags &= ~SCDSPINNING;
 489                         if (spin_up(sc) != 0)
 490                                 return (EIO);
 491                 } else if (rc < 0) {
 492                         print_error(sc, rc);
 493                         return (EIO);
 494                 } else {
 495                         break;
 496                 }
 497         }
 498         sc->data.audio_status = CD_AS_PLAY_IN_PROGRESS;
 499         bcopy((char *)msf, (char *)&sc->data.last_play, sizeof(struct ioc_play_msf));
 500         return (0);
 501 }
 502
 503 static int
 504 scd_stop(struct scd_softc *sc)
 505 {
 506
 507         (void)send_cmd(sc, CMD_STOP_AUDIO, 0);
 508         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
 509         return (0);
 510 }
 511
 512 static int
 513 scd_pause(struct scd_softc *sc)
 514 {
 515         struct sony_subchannel_position_data subpos;
 516
 517         if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS)
 518                 return (EINVAL);
 519
 520         if (read_subcode(sc, &subpos) != 0)
 521                 return (EIO);
 522
 523         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0)
 524                 return (EIO);
 525
 526         sc->data.last_play.start_m = subpos.abs_msf[0];
 527         sc->data.last_play.start_s = subpos.abs_msf[1];
 528         sc->data.last_play.start_f = subpos.abs_msf[2];
 529         sc->data.audio_status = CD_AS_PLAY_PAUSED;
 530
 531         XDEBUG(sc, 1, "pause @ %02x:%02x:%02x\n",
 532                 sc->data.last_play.start_m,
 533                 sc->data.last_play.start_s,
 534                 sc->data.last_play.start_f);
 535
 536         return (0);
 537 }
 538
 539 static int
 540 scd_resume(struct scd_softc *sc)
 541 {
 542
 543         if (sc->data.audio_status != CD_AS_PLAY_PAUSED)
 544                 return (EINVAL);
 545         return scd_play(sc, &sc->data.last_play);
 546 }
 547
 548 static int
 549 scd_eject(struct scd_softc *sc)
 550 {
 551
 552         sc->data.audio_status = CD_AS_AUDIO_INVALID;
 553         sc->data.flags &= ~(SCDSPINNING|SCDTOC);
 554
 555         if (send_cmd(sc, CMD_STOP_AUDIO, 0) != 0 ||
 556             send_cmd(sc, CMD_SPIN_DOWN, 0) != 0 ||
 557             send_cmd(sc, CMD_EJECT, 0) != 0)
 558         {
 559                 return (EIO);
 560         }
 561         return (0);
 562 }
 563
 564 static int
 565 scd_subchan(struct scd_softc *sc, struct ioc_read_subchannel *sch)
 566 {
 567         struct sony_subchannel_position_data q;
 568         struct cd_sub_channel_info data;
 569
 570         XDEBUG(sc, 1, "subchan af=%d, df=%d\n",
 571                 sch->address_format, sch->data_format);
 572
 573         if (sch->address_format != CD_MSF_FORMAT)
 574                 return (EINVAL);
 575
 576         if (sch->data_format != CD_CURRENT_POSITION)
 577                 return (EINVAL);
 578
 579         if (read_subcode(sc, &q) != 0)
 580                 return (EIO);
 581
 582         data.header.audio_status = sc->data.audio_status;
 583         data.what.position.data_format = CD_MSF_FORMAT;
 584         data.what.position.track_number = bcd2bin(q.track_number);
 585         data.what.position.reladdr.msf.unused = 0;
 586         data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]);
 587         data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]);
 588         data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]);
 589         data.what.position.absaddr.msf.unused = 0;
 590         data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]);
 591         data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]);
 592         data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]);
 593         SCD_UNLOCK(sc);
 594
 595         if (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0)
 596                 return (EFAULT);
 597         return (0);
 598 }
 599
 600 int
 601 scd_probe(struct scd_softc *sc)
 602 {
 603         struct sony_drive_configuration drive_config;
 604         int rc;
 605         static char namebuf[8+16+8+3];
 606         char *s = namebuf;
 607         int loop_count = 0;
 608
 609         sc->data.flags = SCDPROBING;
 610
 611         bzero(&drive_config, sizeof(drive_config));
 612
 613 again:
 614         /* Reset drive */
 615         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE);
 616
 617         /* Calm down */
 618         DELAY(300000);
 619
 620         /* Only the ATTENTION bit may be set */
 621         if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) {
 622                 XDEBUG(sc, 1, "too many bits set. probe failed.\n");
 623                 return (ENXIO);
 624         }
 625         rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0);
 626         if (rc != sizeof(drive_config)) {
 627                 /* Sometimes if the drive is playing audio I get */
 628                 /* the bad result 82. Fix by repeating the reset */
 629                 if (rc > 0 && loop_count++ == 0)
 630                         goto again;
 631                 return (ENXIO);
 632         }
 633         if (get_result(sc, rc, (u_char *)&drive_config) != 0)
 634                 return (ENXIO);
 635
 636         bcopy(drive_config.vendor, namebuf, 8);
 637         s = namebuf+8;
 638         while (*(s-1) == ' ')   /* Strip trailing spaces */
 639                 s--;
 640         *s++ = ' ';
 641         bcopy(drive_config.product, s, 16);
 642         s += 16;
 643         while (*(s-1) == ' ')
 644                 s--;
 645         *s++ = ' ';
 646         bcopy(drive_config.revision, s, 8);
 647         s += 8;
 648         while (*(s-1) == ' ')
 649                 s--;
 650         *s = 0;
 651
 652         sc->data.name = namebuf;
 653
 654         if (drive_config.config & 0x10)
 655                 sc->data.double_speed = 1;
 656         else
 657                 sc->data.double_speed = 0;
 658
 659         return (0);
 660 }
 661
 662 static int
 663 read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp)
 664 {
 665         int rc;
 666
 667         rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0);
 668         if (rc < 0 || rc < sizeof(*scp))
 669                 return (EIO);
 670         if (get_result(sc, rc, (u_char *)scp) != 0)
 671                 return (EIO);
 672         return (0);
 673 }
 674
 675 /* State machine copied from mcd.c */
 676
 677 /* This (and the code in mcd.c) will not work with more than one drive */
 678 /* because there is only one sc->ch_mbxsave below. Should fix that some day. */
 679 /* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */
 680 /*  the unit number used as first argument to scd_doread().) /Micke */
 681
 682 /* state machine to process read requests
 683  * initialize with SCD_S_BEGIN: reset state machine
 684  * SCD_S_WAITSTAT:  wait for ready (!busy)
 685  * SCD_S_WAITSPIN:  wait for drive to spin up (if not spinning)
 686  * SCD_S_WAITFIFO:  wait for param fifo to get ready, them exec. command.
 687  * SCD_S_WAITREAD:  wait for data ready, read data
 688  * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read.
 689  */
 690
 691 static void
 692 scd_timeout(void *arg)
 693 {
 694         struct scd_softc *sc;
 695         sc = (struct scd_softc *)arg;
 696
 697         SCD_ASSERT_LOCKED(sc);
 698         scd_doread(sc, sc->ch_state, sc->ch_mbxsave);
 699 }
 700
 701 static void
 702 scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin)
 703 {
 704         struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin;
 705         struct  bio *bp = mbx->bp;
 706         int     i;
 707         int     blknum;
 708         caddr_t addr;
 709         static char sdata[3];   /* Must be preserved between calls to this function */
 710
 711         SCD_ASSERT_LOCKED(sc);
 712 loop:
 713         switch (state) {
 714         case SCD_S_BEGIN:
 715                 mbx = sc->ch_mbxsave = mbxin;
 716
 717         case SCD_S_BEGIN1:
 718                 /* get status */
 719                 mbx->count = RDELAY_WAIT;
 720
 721                 process_attention(sc);
 722                 goto trystat;
 723
 724         case SCD_S_WAITSTAT:
 725                 sc->ch_state = SCD_S_WAITSTAT;
 726                 callout_stop(&sc->timer);
 727                 if (mbx->count-- <= 0) {
 728                         device_printf(sc->dev, "timeout. drive busy.\n");
 729                         goto harderr;
 730                 }
 731
 732 trystat:
 733                 if (IS_BUSY(sc)) {
 734                         sc->ch_state = SCD_S_WAITSTAT;
 735                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 736                         return;
 737                 }
 738
 739                 process_attention(sc);
 740
 741                 /* reject, if audio active */
 742                 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) {
 743                         device_printf(sc->dev, "audio is active\n");
 744                         goto harderr;
 745                 }
 746
 747                 mbx->sz = sc->data.blksize;
 748
 749                 /* for first block */
 750                 mbx->nblk = howmany(bp->bio_bcount, mbx->sz);
 751                 mbx->skip = 0;
 752
 753 nextblock:
 754                 if (!(sc->data.flags & SCDVALID))
 755                         goto changed;
 756
 757                 blknum  = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz;
 758
 759                 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum);
 760
 761                 /* build parameter block */
 762                 hsg2msf(blknum, sdata);
 763
 764                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 765                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
 766                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 767
 768                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
 769                         goto writeparam;
 770
 771                 mbx->count = 100;
 772                 sc->ch_state = SCD_S_WAITFIFO;
 773                 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 774                 return;
 775
 776         case SCD_S_WAITSPIN:
 777                 sc->ch_state = SCD_S_WAITSPIN;
 778                 callout_stop(&sc->timer);
 779                 if (mbx->count-- <= 0) {
 780                         device_printf(sc->dev, "timeout waiting for drive to spin up.\n");
 781                         goto harderr;
 782                 }
 783                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 784                         sc->ch_state = SCD_S_WAITSPIN;
 785                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 786                         return;
 787                 }
 788                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 789                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 790                 case 0x20:
 791                         i = SCD_READ(sc, IREG_RESULT);
 792                         print_error(sc, i);
 793                         goto harderr;
 794                 case 0x00:
 795                         (void)SCD_READ(sc, IREG_RESULT);
 796                         sc->data.flags |= SCDSPINNING;
 797                         break;
 798                 }
 799                 XDEBUG(sc, 1, "DEBUG: spin up complete\n");
 800
 801                 state = SCD_S_BEGIN1;
 802                 goto loop;
 803
 804         case SCD_S_WAITFIFO:
 805                 sc->ch_state = SCD_S_WAITFIFO;
 806                 callout_stop(&sc->timer);
 807                 if (mbx->count-- <= 0) {
 808                         device_printf(sc->dev, "timeout. write param not ready.\n");
 809                         goto harderr;
 810                 }
 811                 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
 812                         sc->ch_state = SCD_S_WAITFIFO;
 813                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 814                         return;
 815                 }
 816                 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100);
 817
 818 writeparam:
 819                 /* The reason this test isn't done 'till now is to make sure */
 820                 /* that it is ok to send the SPIN_UP cmd below. */
 821                 if (!(sc->data.flags & SCDSPINNING)) {
 822                         XDEBUG(sc, 1, "spinning up drive ...\n");
 823                         SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP);
 824                         mbx->count = 300;
 825                         sc->ch_state = SCD_S_WAITSPIN;
 826                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 827                         return;
 828                 }
 829
 830                 /* send the read command */
 831                 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]);
 832                 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]);
 833                 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]);
 834                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 835                 SCD_WRITE(sc, OREG_WPARAMS, 0);
 836                 SCD_WRITE(sc, OREG_WPARAMS, 1);
 837                 SCD_WRITE(sc, OREG_COMMAND, CMD_READ);
 838
 839                 mbx->count = RDELAY_WAITREAD;
 840                 for (i = 0; i < 50; i++) {
 841                         if (STATUS_BIT(sc, SBIT_DATA_READY))
 842                                 goto got_data;
 843                         DELAY(100);
 844                 }
 845
 846                 sc->ch_state = SCD_S_WAITREAD;
 847                 callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 848                 return;
 849
 850         case SCD_S_WAITREAD:
 851                 sc->ch_state = SCD_S_WAITREAD;
 852                 callout_stop(&sc->timer);
 853                 if (mbx->count-- <= 0) {
 854                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 855                                 goto got_param;
 856                         device_printf(sc->dev, "timeout while reading data\n");
 857                         goto readerr;
 858                 }
 859                 if (!STATUS_BIT(sc, SBIT_DATA_READY)) {
 860                         process_attention(sc);
 861                         if (!(sc->data.flags & SCDVALID))
 862                                 goto changed;
 863                         sc->ch_state = SCD_S_WAITREAD;
 864                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 865                         return;
 866                 }
 867                 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD);
 868
 869 got_data:
 870                 /* data is ready */
 871                 addr = bp->bio_data + mbx->skip;
 872                 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR);
 873                 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz);
 874
 875                 mbx->count = 100;
 876                 for (i = 0; i < 20; i++) {
 877                         if (STATUS_BIT(sc, SBIT_RESULT_READY))
 878                                 goto waitfor_param;
 879                         DELAY(100);
 880                 }
 881                 goto waitfor_param;
 882
 883         case SCD_S_WAITPARAM:
 884                 sc->ch_state = SCD_S_WAITPARAM;
 885                 callout_stop(&sc->timer);
 886                 if (mbx->count-- <= 0) {
 887                         device_printf(sc->dev, "timeout waiting for params\n");
 888                         goto readerr;
 889                 }
 890
 891 waitfor_param:
 892                 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) {
 893                         sc->ch_state = SCD_S_WAITPARAM;
 894                         callout_reset(&sc->timer, hz / 100, scd_timeout, sc); /* XXX */
 895                         return;
 896                 }
 897 #ifdef SCD_DEBUG
 898                 if (mbx->count < 100 && scd_debuglevel > 0)
 899                         device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100);
 900 #endif
 901
 902 got_param:
 903                 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
 904                 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
 905                 case 0x50:
 906                         switch (i) {
 907                         case ERR_FATAL_READ_ERROR1:
 908                         case ERR_FATAL_READ_ERROR2:
 909                                 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i);
 910                                 goto harderr;
 911                         }
 912                         break;
 913                 case 0x20:
 914                         i = SCD_READ(sc, IREG_RESULT);
 915                         switch (i) {
 916                         case ERR_NOT_SPINNING:
 917                                 XDEBUG(sc, 1, "read error: drive not spinning\n");
 918                                 if (mbx->retry-- > 0) {
 919                                         state = SCD_S_BEGIN1;
 920                                         sc->data.flags &= ~SCDSPINNING;
 921                                         goto loop;
 922                                 }
 923                                 goto harderr;
 924                         default:
 925                                 print_error(sc, i);
 926                                 goto readerr;
 927                         }
 928                 case 0x00:
 929                         i = SCD_READ(sc, IREG_RESULT);
 930                         break;
 931                 }
 932
 933                 if (--mbx->nblk > 0) {
 934                         mbx->skip += mbx->sz;
 935                         goto nextblock;
 936                 }
 937
 938                 /* return buffer */
 939                 bp->bio_resid = 0;
 940                 biodone(bp);
 941
 942                 sc->data.flags &= ~SCDMBXBSY;
 943                 scd_start(sc);
 944                 return;
 945         }
 946
 947 readerr:
 948         if (mbx->retry-- > 0) {
 949                 device_printf(sc->dev, "retrying ...\n");
 950                 state = SCD_S_BEGIN1;
 951                 goto loop;
 952         }
 953 harderr:
 954         /* invalidate the buffer */
 955         bp->bio_error = EIO;
 956         bp->bio_flags |= BIO_ERROR;
 957         bp->bio_resid = bp->bio_bcount;
 958         biodone(bp);
 959
 960         sc->data.flags &= ~SCDMBXBSY;
 961         scd_start(sc);
 962         return;
 963
 964 changed:
 965         device_printf(sc->dev, "media changed\n");
 966         goto harderr;
 967 }
 968
 969 static void
 970 hsg2msf(int hsg, bcd_t *msf)
 971 {
 972
 973         hsg += 150;
 974         M_msf(msf) = bin2bcd(hsg / 4500);
 975         hsg %= 4500;
 976         S_msf(msf) = bin2bcd(hsg / 75);
 977         F_msf(msf) = bin2bcd(hsg % 75);
 978 }
 979
 980 static int
 981 msf2hsg(bcd_t *msf)
 982 {
 983
 984         return (bcd2bin(M_msf(msf)) * 60 +
 985                 bcd2bin(S_msf(msf))) * 75 +
 986                 bcd2bin(F_msf(msf)) - 150;
 987 }
 988
 989 static void
 990 process_attention(struct scd_softc *sc)
 991 {
 992         unsigned char code;
 993         int count = 0;
 994
 995         while (IS_ATTENTION(sc) && count++ < 30) {
 996                 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR);
 997                 code = SCD_READ(sc, IREG_RESULT);
 998
 999 #ifdef SCD_DEBUG
1000                 if (scd_debuglevel > 0) {
1001                         if (count == 1)
1002                                 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code);
1003                         else
1004                                 printf(",0x%x", code);
1005                 }
1006 #endif
1007
1008                 switch (code) {
1009                 case ATTEN_SPIN_DOWN:
1010                         sc->data.flags &= ~SCDSPINNING;
1011                         break;
1012
1013                 case ATTEN_SPIN_UP_DONE:
1014                         sc->data.flags |= SCDSPINNING;
1015                         break;
1016
1017                 case ATTEN_AUDIO_DONE:
1018                         sc->data.audio_status = CD_AS_PLAY_COMPLETED;
1019                         break;
1020
1021                 case ATTEN_DRIVE_LOADED:
1022                         sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID);
1023                         sc->data.audio_status = CD_AS_AUDIO_INVALID;
1024                         break;
1025
1026                 case ATTEN_EJECT_PUSHED:
1027                         sc->data.flags &= ~SCDVALID;
1028                         break;
1029                 }
1030                 DELAY(100);
1031         }
1032 #ifdef SCD_DEBUG
1033         if (scd_debuglevel > 0 && count > 0)
1034                 printf("\n");
1035 #endif
1036 }
1037
1038 /* Returns 0 OR sony error code */
1039 static int
1040 spin_up(struct scd_softc *sc)
1041 {
1042         unsigned char res_reg[12];
1043         unsigned int res_size;
1044         int rc;
1045         int loop_count = 0;
1046
1047 again:
1048         rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
1049         if (rc != 0) {
1050                 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc);
1051                 return (rc);
1052         }
1053
1054         if (!(sc->data.flags & SCDTOC)) {
1055                 rc = send_cmd(sc, CMD_READ_TOC, 0);
1056                 if (rc == ERR_NOT_SPINNING) {
1057                         if (loop_count++ < 3)
1058                                 goto again;
1059                         return (rc);
1060                 }
1061                 if (rc != 0)
1062                         return (rc);
1063         }
1064
1065         sc->data.flags |= SCDSPINNING;
1066
1067         return (0);
1068 }
1069
1070 static struct sony_tracklist *
1071 get_tl(struct sony_toc *toc, int size)
1072 {
1073         struct sony_tracklist *tl = &toc->tracks[0];
1074
1075         if (tl->track != 0xb0)
1076                 return (tl);
1077         if (tl->track != 0xb1)
1078                 return (tl);
1079         tl = (struct sony_tracklist *)((char *)tl + 9);
1080         if (tl->track != 0xb2)
1081                 return (tl);
1082         tl = (struct sony_tracklist *)((char *)tl + 9);
1083         if (tl->track != 0xb3)
1084                 return (tl);
1085         tl = (struct sony_tracklist *)((char *)tl + 9);
1086         if (tl->track != 0xb4)
1087                 return (tl);
1088         tl = (struct sony_tracklist *)((char *)tl + 9);
1089         if (tl->track != 0xc0)
1090                 return (tl);
1091         tl = (struct sony_tracklist *)((char *)tl + 9);
1092         return (tl);
1093 }
1094
1095 static int
1096 read_toc(struct scd_softc *sc)
1097 {
1098         struct sony_toc toc;
1099         struct sony_tracklist *tl;
1100         int rc, i, j;
1101         u_long first, last;
1102
1103         rc = send_cmd(sc, CMD_GET_TOC, 1, 1);
1104         if (rc < 0)
1105                 return (rc);
1106         if (rc > sizeof(toc)) {
1107                 device_printf(sc->dev, "program error: toc too large (%d)\n", rc);
1108                 return (EIO);
1109         }
1110         if (get_result(sc, rc, (u_char *)&toc) != 0)
1111                 return (EIO);
1112
1113         XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc));
1114
1115         tl = get_tl(&toc, rc);
1116         first = msf2hsg(tl->start_msf);
1117         last = msf2hsg(toc.lead_out_start_msf);
1118         sc->data.blksize = SCDBLKSIZE;
1119         sc->data.disksize = last*sc->data.blksize/DEV_BSIZE;
1120
1121         XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last);
1122
1123         sc->data.first_track = bcd2bin(toc.first_track);
1124         sc->data.last_track = bcd2bin(toc.last_track);
1125         if (sc->data.last_track > (MAX_TRACKS-2))
1126                 sc->data.last_track = MAX_TRACKS-2;
1127         for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) {
1128                 sc->data.toc[i].adr = tl[j].adr;
1129                 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */
1130                 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3);
1131 #ifdef SCD_DEBUG
1132                 if (scd_debuglevel > 0) {
1133                         if ((j % 3) == 0) {
1134                                 printf("\n");
1135                                 device_printf(sc->dev, "tracks ");
1136                         }
1137                         printf("[%03d: %2d %2d %2d]  ", i,
1138                                 bcd2bin(sc->data.toc[i].start_msf[0]),
1139                                 bcd2bin(sc->data.toc[i].start_msf[1]),
1140                                 bcd2bin(sc->data.toc[i].start_msf[2]));
1141                 }
1142 #endif
1143         }
1144         bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3);
1145 #ifdef SCD_DEBUG
1146         if (scd_debuglevel > 0) {
1147                 i = sc->data.last_track+1;
1148                 printf("[END: %2d %2d %2d]\n",
1149                         bcd2bin(sc->data.toc[i].start_msf[0]),
1150                         bcd2bin(sc->data.toc[i].start_msf[1]),
1151                         bcd2bin(sc->data.toc[i].start_msf[2]));
1152         }
1153 #endif
1154
1155         sc->data.flags |= SCDTOC;
1156
1157         return (0);
1158 }
1159
1160 static void
1161 init_drive(struct scd_softc *sc)
1162 {
1163         int rc;
1164
1165         rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2,
1166                 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0));
1167         if (rc != 0)
1168                 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc);
1169 }
1170
1171 /* Returns 0 or errno */
1172 static int
1173 get_result(struct scd_softc *sc, int result_len, u_char *result)
1174 {
1175         int loop_index = 2; /* send_cmd() reads two bytes ... */
1176
1177         XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len);
1178
1179         while (result_len-- > 0) {
1180                 if (loop_index++ >= 10) {
1181                         loop_index = 1;
1182                         if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0))
1183                                 return (EIO);
1184                         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1185                 }
1186                 if (result)
1187                         *result++ = SCD_READ(sc, IREG_RESULT);
1188                 else
1189                         (void)SCD_READ(sc, IREG_RESULT);
1190         }
1191         return (0);
1192 }
1193
1194 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */
1195 static int
1196 send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...)
1197 {
1198         va_list ap;
1199         u_char c;
1200         int rc;
1201         int i;
1202
1203         if (waitfor_status_bits(sc, 0, SBIT_BUSY)) {
1204                 device_printf(sc->dev, "drive busy\n");
1205                 return (-0x100);
1206         }
1207
1208         XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs);
1209
1210         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1211         SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR);
1212
1213         for (i = 0; i < 100; i++)
1214                 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY))
1215                         break;
1216         if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) {
1217                 XDEBUG(sc, 1, "\nwparam timeout\n");
1218                 return (-EIO);
1219         }
1220
1221         va_start(ap, nargs);
1222         for (i = 0; i < nargs; i++) {
1223                 c = (u_char)va_arg(ap, int);
1224                 SCD_WRITE(sc, OREG_WPARAMS, c);
1225                 XDEBUG(sc, 1, ",{0x%x}", c);
1226         }
1227         va_end(ap);
1228         XDEBUG(sc, 1, "\n");
1229
1230         SCD_WRITE(sc, OREG_COMMAND, cmd);
1231
1232         rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY);
1233         if (rc)
1234                 return (-0x100);
1235
1236         SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR);
1237         switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) {
1238         case 0x20:
1239                 rc = SCD_READ(sc, IREG_RESULT);
1240                 /* FALLTHROUGH */
1241         case 0x50:
1242                 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc);
1243                 return (-rc);
1244         case 0x00:
1245         default:
1246                 rc = SCD_READ(sc, IREG_RESULT);
1247                 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc);
1248                 return (rc);
1249         }
1250 }
1251
1252 static void
1253 print_error(struct scd_softc *sc, int errcode)
1254 {
1255
1256         switch (errcode) {
1257         case -ERR_CD_NOT_LOADED:
1258                 device_printf(sc->dev, "door is open\n");
1259                 break;
1260         case -ERR_NO_CD_INSIDE:
1261                 device_printf(sc->dev, "no cd inside\n");
1262                 break;
1263         default:
1264                 if (errcode == -0x100 || errcode > 0)
1265                         device_printf(sc->dev, "device timeout\n");
1266                 else
1267                         device_printf(sc->dev, "unexpected error 0x%x\n", -errcode);
1268                 break;
1269         }
1270 }
1271
1272 /* Returns 0 or errno value */
1273 static int
1274 waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear)
1275 {
1276         u_int flags = sc->data.flags;
1277         u_int max_loop;
1278         u_char c = 0;
1279
1280         if (flags & SCDPROBING) {
1281                 max_loop = 0;
1282                 while (max_loop++ < 1000) {
1283                         c = SCD_READ(sc, IREG_STATUS);
1284                         if (c == 0xff)
1285                                 return (EIO);
1286                         if (c & SBIT_ATTENTION) {
1287                                 process_attention(sc);
1288                                 continue;
1289                         }
1290                         if ((c & bits_set) == bits_set &&
1291                             (c & bits_clear) == 0)
1292                         {
1293                                 break;
1294                         }
1295                         DELAY(10000);
1296                 }
1297         } else {
1298                 max_loop = 100;
1299                 while (max_loop-- > 0) {
1300                         c = SCD_READ(sc, IREG_STATUS);
1301                         if (c & SBIT_ATTENTION) {
1302                                 process_attention(sc);
1303                                 continue;
1304                         }
1305                         if ((c & bits_set) == bits_set &&
1306                             (c & bits_clear) == 0)
1307                         {
1308                                 break;
1309                         }
1310                         SCD_UNLOCK(sc);
1311                         pause("waitfor", hz/10);
1312                         SCD_LOCK(sc);
1313                 }
1314         }
1315         if ((c & bits_set) == bits_set &&
1316             (c & bits_clear) == 0)
1317         {
1318                 return (0);
1319         }
1320 #ifdef SCD_DEBUG
1321         if (scd_debuglevel > 0)
1322                 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear);
1323         else
1324 #endif
1325                 device_printf(sc->dev, "timeout.\n");
1326         return (EIO);
1327 }
1328
1329 /* these two routines for xcdplayer - "borrowed" from mcd.c */
1330 static int
1331 scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th)
1332 {
1333         int rc;
1334
1335         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1336                 print_error(sc, rc);
1337                 return (EIO);
1338         }
1339
1340         th->starting_track = sc->data.first_track;
1341         th->ending_track = sc->data.last_track;
1342         th->len = 0; /* not used */
1343
1344         return (0);
1345 }
1346
1347 static int
1348 scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te)
1349 {
1350         struct cd_toc_entry toc_entry;
1351         int rc, i, len = te->data_len;
1352
1353         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1354                 print_error(sc, rc);
1355                 return (EIO);
1356         }
1357
1358         /* find the toc to copy*/
1359         i = te->starting_track;
1360         if (i == SCD_LASTPLUS1)
1361                 i = sc->data.last_track + 1;
1362
1363         /* verify starting track */
1364         if (i < sc->data.first_track || i > sc->data.last_track+1)
1365                 return (EINVAL);
1366
1367         /* valid length ? */
1368         if (len < sizeof(struct cd_toc_entry)
1369             || (len % sizeof(struct cd_toc_entry)) != 0)
1370                 return (EINVAL);
1371
1372         /* copy the toc data */
1373         toc_entry.control = sc->data.toc[i].ctl;
1374         toc_entry.addr_type = te->address_format;
1375         toc_entry.track = i;
1376         if (te->address_format == CD_MSF_FORMAT) {
1377                 toc_entry.addr.msf.unused = 0;
1378                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1379                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1380                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1381         }
1382         SCD_UNLOCK(sc);
1383
1384         /* copy the data back */
1385         if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0)
1386                 return (EFAULT);
1387
1388         return (0);
1389 }
1390
1391
1392 static int
1393 scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te)
1394 {
1395         struct cd_toc_entry toc_entry;
1396         int rc, i;
1397
1398         if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) {
1399                 print_error(sc, rc);
1400                 return (EIO);
1401         }
1402
1403         /* find the toc to copy*/
1404         i = te->track;
1405         if (i == SCD_LASTPLUS1)
1406                 i = sc->data.last_track + 1;
1407
1408         /* verify starting track */
1409         if (i < sc->data.first_track || i > sc->data.last_track+1)
1410                 return (EINVAL);
1411
1412         /* copy the toc data */
1413         toc_entry.control = sc->data.toc[i].ctl;
1414         toc_entry.addr_type = te->address_format;
1415         toc_entry.track = i;
1416         if (te->address_format == CD_MSF_FORMAT) {
1417                 toc_entry.addr.msf.unused = 0;
1418                 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]);
1419                 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]);
1420                 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]);
1421         }
1422
1423         /* copy the data back */
1424         bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry));
1425
1426         return (0);
1427 }