Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/scd/scd.c
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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_pio.h> 62 #include <machine/bus.h> 63 #include <machine/resource.h> 64 #include <sys/rman.h> 65 66 #include <isa/isavar.h> 67 68 #include <dev/scd/scdreg.h> 69 #include <dev/scd/scdvar.h> 70 71 /* flags */ 72 #define SCDOPEN 0x0001 /* device opened */ 73 #define SCDVALID 0x0002 /* parameters loaded */ 74 #define SCDINIT 0x0004 /* device is init'd */ 75 #define SCDPROBING 0x0020 /* probing */ 76 #define SCDTOC 0x0100 /* already read toc */ 77 #define SCDMBXBSY 0x0200 /* local mbx is busy */ 78 #define SCDSPINNING 0x0400 /* drive is spun up */ 79 80 #define SCD_S_BEGIN 0 81 #define SCD_S_BEGIN1 1 82 #define SCD_S_WAITSTAT 2 83 #define SCD_S_WAITFIFO 3 84 #define SCD_S_WAITSPIN 4 85 #define SCD_S_WAITREAD 5 86 #define SCD_S_WAITPARAM 6 87 88 #define RDELAY_WAIT 300 89 #define RDELAY_WAITREAD 300 90 91 #define SCDBLKSIZE 2048 92 93 #ifdef SCD_DEBUG 94 static int scd_debuglevel = SCD_DEBUG; 95 # define XDEBUG(sc, level, fmt, args...) \ 96 do { \ 97 if (scd_debuglevel >= level) \ 98 device_printf(sc->dev, fmt, ## args); \ 99 } while (0) 100 #else 101 # define XDEBUG(sc, level, fmt, args...) 102 #endif 103 104 #define IS_ATTENTION(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_ATTENTION) != 0) 105 #define IS_BUSY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_BUSY) != 0) 106 #define IS_DATA_RDY(sc) ((SCD_READ(sc, IREG_STATUS) & SBIT_DATA_READY) != 0) 107 #define STATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_STATUS) & (bit)) != 0) 108 #define FSTATUS_BIT(sc, bit) ((SCD_READ(sc, IREG_FSTATUS) & (bit)) != 0) 109 110 /* prototypes */ 111 static void hsg2msf(int hsg, bcd_t *msf); 112 static int msf2hsg(bcd_t *msf); 113 114 static void process_attention(struct scd_softc *); 115 static int waitfor_status_bits(struct scd_softc *, int bits_set, int bits_clear); 116 static int send_cmd(struct scd_softc *, u_char cmd, u_int nargs, ...); 117 static void init_drive(struct scd_softc *); 118 static int spin_up(struct scd_softc *); 119 static int read_toc(struct scd_softc *); 120 static int get_result(struct scd_softc *, int result_len, u_char *result); 121 static void print_error(struct scd_softc *, int errcode); 122 123 static void scd_start(struct scd_softc *); 124 static timeout_t scd_timeout; 125 static void scd_doread(struct scd_softc *, int state, struct scd_mbx *mbxin); 126 127 static int scd_eject(struct scd_softc *); 128 static int scd_stop(struct scd_softc *); 129 static int scd_pause(struct scd_softc *); 130 static int scd_resume(struct scd_softc *); 131 static int scd_playtracks(struct scd_softc *, struct ioc_play_track *pt); 132 static int scd_playmsf(struct scd_softc *, struct ioc_play_msf *msf); 133 static int scd_play(struct scd_softc *, struct ioc_play_msf *msf); 134 static int scd_subchan(struct scd_softc *, struct ioc_read_subchannel *sch); 135 static int read_subcode(struct scd_softc *, struct sony_subchannel_position_data *sch); 136 137 /* for xcdplayer */ 138 static int scd_toc_header(struct scd_softc *, struct ioc_toc_header *th); 139 static int scd_toc_entrys(struct scd_softc *, struct ioc_read_toc_entry *te); 140 static int scd_toc_entry(struct scd_softc *, struct ioc_read_toc_single_entry *te); 141 #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 142 143 static d_open_t scdopen; 144 static d_close_t scdclose; 145 static d_ioctl_t scdioctl; 146 static d_strategy_t scdstrategy; 147 148 149 static struct cdevsw scd_cdevsw = { 150 .d_version = D_VERSION, 151 .d_open = scdopen, 152 .d_close = scdclose, 153 .d_read = physread, 154 .d_ioctl = scdioctl, 155 .d_strategy = scdstrategy, 156 .d_name = "scd", 157 .d_flags = D_DISK | D_NEEDGIANT, 158 }; 159 160 int 161 scd_attach(struct scd_softc *sc) 162 { 163 int unit; 164 165 unit = device_get_unit(sc->dev); 166 167 init_drive(sc); 168 169 sc->data.flags = SCDINIT; 170 sc->data.audio_status = CD_AS_AUDIO_INVALID; 171 bioq_init(&sc->data.head); 172 173 sc->scd_dev_t = make_dev(&scd_cdevsw, 8 * unit, 174 UID_ROOT, GID_OPERATOR, 0640, "scd%d", unit); 175 sc->scd_dev_t->si_drv1 = (void *)sc; 176 177 return (0); 178 } 179 180 static int 181 scdopen(struct cdev *dev, int flags, int fmt, struct thread *td) 182 { 183 struct scd_softc *sc; 184 int rc; 185 186 sc = (struct scd_softc *)dev->si_drv1; 187 188 /* not initialized*/ 189 if (!(sc->data.flags & SCDINIT)) 190 return (ENXIO); 191 192 /* invalidated in the meantime? mark all open part's invalid */ 193 if (sc->data.openflag) 194 return (ENXIO); 195 196 XDEBUG(sc, 1, "DEBUG: status = 0x%x\n", SCD_READ(sc, IREG_STATUS)); 197 198 if ((rc = spin_up(sc)) != 0) { 199 print_error(sc, rc); 200 return (EIO); 201 } 202 if (!(sc->data.flags & SCDTOC)) { 203 int loop_count = 3; 204 205 while (loop_count-- > 0 && (rc = read_toc(sc)) != 0) { 206 if (rc == ERR_NOT_SPINNING) { 207 rc = spin_up(sc); 208 if (rc) { 209 print_error(sc, rc);\ 210 return (EIO); 211 } 212 continue; 213 } 214 device_printf(sc->dev, "TOC read error 0x%x\n", rc); 215 return (EIO); 216 } 217 } 218 219 dev->si_bsize_phys = sc->data.blksize; 220 221 sc->data.openflag = 1; 222 sc->data.flags |= SCDVALID; 223 224 return (0); 225 } 226 227 static int 228 scdclose(struct cdev *dev, int flags, int fmt, struct thread *td) 229 { 230 struct scd_softc *sc; 231 232 sc = (struct scd_softc *)dev->si_drv1; 233 234 if (!(sc->data.flags & SCDINIT) || !sc->data.openflag) 235 return (ENXIO); 236 237 if (sc->data.audio_status != CD_AS_PLAY_IN_PROGRESS) { 238 (void)send_cmd(sc, CMD_SPIN_DOWN, 0); 239 sc->data.flags &= ~SCDSPINNING; 240 } 241 242 243 /* close channel */ 244 sc->data.openflag = 0; 245 246 return (0); 247 } 248 249 static void 250 scdstrategy(struct bio *bp) 251 { 252 int s; 253 struct scd_softc *sc; 254 255 sc = (struct scd_softc *)bp->bio_dev->si_drv1; 256 257 /* if device invalidated (e.g. media change, door open), error */ 258 if (!(sc->data.flags & SCDVALID)) { 259 device_printf(sc->dev, "media changed\n"); 260 bp->bio_error = EIO; 261 goto bad; 262 } 263 264 /* read only */ 265 if (!(bp->bio_cmd == BIO_READ)) { 266 bp->bio_error = EROFS; 267 goto bad; 268 } 269 270 /* no data to read */ 271 if (bp->bio_bcount == 0) 272 goto done; 273 274 if (!(sc->data.flags & SCDTOC)) { 275 bp->bio_error = EIO; 276 goto bad; 277 } 278 279 bp->bio_resid = 0; 280 281 /* queue it */ 282 s = splbio(); 283 bioq_disksort(&sc->data.head, bp); 284 splx(s); 285 286 /* now check whether we can perform processing */ 287 scd_start(sc); 288 return; 289 290 bad: 291 bp->bio_flags |= BIO_ERROR; 292 done: 293 bp->bio_resid = bp->bio_bcount; 294 biodone(bp); 295 return; 296 } 297 298 static void 299 scd_start(struct scd_softc *sc) 300 { 301 struct bio *bp; 302 int s = splbio(); 303 304 if (sc->data.flags & SCDMBXBSY) { 305 splx(s); 306 return; 307 } 308 309 bp = bioq_first(&sc->data.head); 310 if (bp != 0) { 311 /* block found to process, dequeue */ 312 bioq_remove(&sc->data.head, bp); 313 sc->data.flags |= SCDMBXBSY; 314 splx(s); 315 } else { 316 /* nothing to do */ 317 splx(s); 318 return; 319 } 320 321 sc->data.mbx.retry = 3; 322 sc->data.mbx.bp = bp; 323 splx(s); 324 325 scd_doread(sc, SCD_S_BEGIN, &(sc->data.mbx)); 326 return; 327 } 328 329 static int 330 scdioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread *td) 331 { 332 struct scd_softc *sc; 333 334 sc = (struct scd_softc *)dev->si_drv1; 335 336 XDEBUG(sc, 1, "ioctl: cmd=0x%lx\n", cmd); 337 338 if (!(sc->data.flags & SCDVALID)) 339 return (EIO); 340 341 switch (cmd) { 342 case DIOCGMEDIASIZE: 343 *(off_t *)addr = (off_t)sc->data.disksize * sc->data.blksize; 344 return (0); 345 break; 346 case DIOCGSECTORSIZE: 347 *(u_int *)addr = sc->data.blksize; 348 return (0); 349 break; 350 case CDIOCPLAYTRACKS: 351 return scd_playtracks(sc, (struct ioc_play_track *) addr); 352 case CDIOCPLAYBLOCKS: 353 return (EINVAL); 354 case CDIOCPLAYMSF: 355 return scd_playmsf(sc, (struct ioc_play_msf *) addr); 356 case CDIOCREADSUBCHANNEL: 357 return scd_subchan(sc, (struct ioc_read_subchannel *) addr); 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) 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 (copyout(&data, sch->data, min(sizeof(struct cd_sub_channel_info), sch->data_len))!=0) 580 return (EFAULT); 581 return (0); 582 } 583 584 int 585 scd_probe(struct scd_softc *sc) 586 { 587 struct sony_drive_configuration drive_config; 588 int rc; 589 static char namebuf[8+16+8+3]; 590 char *s = namebuf; 591 int loop_count = 0; 592 593 sc->data.flags = SCDPROBING; 594 595 bzero(&drive_config, sizeof(drive_config)); 596 597 again: 598 /* Reset drive */ 599 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESET_DRIVE); 600 601 /* Calm down */ 602 DELAY(300000); 603 604 /* Only the ATTENTION bit may be set */ 605 if ((SCD_READ(sc, IREG_STATUS) & ~1) != 0) { 606 XDEBUG(sc, 1, "too many bits set. probe failed.\n"); 607 return (ENXIO); 608 } 609 rc = send_cmd(sc, CMD_GET_DRIVE_CONFIG, 0); 610 if (rc != sizeof(drive_config)) { 611 /* Sometimes if the drive is playing audio I get */ 612 /* the bad result 82. Fix by repeating the reset */ 613 if (rc > 0 && loop_count++ == 0) 614 goto again; 615 return (ENXIO); 616 } 617 if (get_result(sc, rc, (u_char *)&drive_config) != 0) 618 return (ENXIO); 619 620 bcopy(drive_config.vendor, namebuf, 8); 621 s = namebuf+8; 622 while (*(s-1) == ' ') /* Strip trailing spaces */ 623 s--; 624 *s++ = ' '; 625 bcopy(drive_config.product, s, 16); 626 s += 16; 627 while (*(s-1) == ' ') 628 s--; 629 *s++ = ' '; 630 bcopy(drive_config.revision, s, 8); 631 s += 8; 632 while (*(s-1) == ' ') 633 s--; 634 *s = 0; 635 636 sc->data.name = namebuf; 637 638 if (drive_config.config & 0x10) 639 sc->data.double_speed = 1; 640 else 641 sc->data.double_speed = 0; 642 643 return (0); 644 } 645 646 static int 647 read_subcode(struct scd_softc *sc, struct sony_subchannel_position_data *scp) 648 { 649 int rc; 650 651 rc = send_cmd(sc, CMD_GET_SUBCHANNEL_DATA, 0); 652 if (rc < 0 || rc < sizeof(*scp)) 653 return (EIO); 654 if (get_result(sc, rc, (u_char *)scp) != 0) 655 return (EIO); 656 return (0); 657 } 658 659 /* State machine copied from mcd.c */ 660 661 /* This (and the code in mcd.c) will not work with more than one drive */ 662 /* because there is only one sc->ch_mbxsave below. Should fix that some day. */ 663 /* (sc->ch_mbxsave & state should probably be included in the scd_data struct and */ 664 /* the unit number used as first argument to scd_doread().) /Micke */ 665 666 /* state machine to process read requests 667 * initialize with SCD_S_BEGIN: reset state machine 668 * SCD_S_WAITSTAT: wait for ready (!busy) 669 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 670 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 671 * SCD_S_WAITREAD: wait for data ready, read data 672 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 673 */ 674 675 static void 676 scd_timeout(void *arg) 677 { 678 struct scd_softc *sc; 679 sc = (struct scd_softc *)arg; 680 681 scd_doread(sc, sc->ch_state, sc->ch_mbxsave); 682 } 683 684 static void 685 scd_doread(struct scd_softc *sc, int state, struct scd_mbx *mbxin) 686 { 687 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? sc->ch_mbxsave : mbxin; 688 struct bio *bp = mbx->bp; 689 int i; 690 int blknum; 691 caddr_t addr; 692 static char sdata[3]; /* Must be preserved between calls to this function */ 693 694 loop: 695 switch (state) { 696 case SCD_S_BEGIN: 697 mbx = sc->ch_mbxsave = mbxin; 698 699 case SCD_S_BEGIN1: 700 /* get status */ 701 mbx->count = RDELAY_WAIT; 702 703 process_attention(sc); 704 goto trystat; 705 706 case SCD_S_WAITSTAT: 707 sc->ch_state = SCD_S_WAITSTAT; 708 untimeout(scd_timeout, (caddr_t)sc, sc->ch); 709 if (mbx->count-- <= 0) { 710 device_printf(sc->dev, "timeout. drive busy.\n"); 711 goto harderr; 712 } 713 714 trystat: 715 if (IS_BUSY(sc)) { 716 sc->ch_state = SCD_S_WAITSTAT; 717 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 718 return; 719 } 720 721 process_attention(sc); 722 723 /* reject, if audio active */ 724 if (sc->data.audio_status & CD_AS_PLAY_IN_PROGRESS) { 725 device_printf(sc->dev, "audio is active\n"); 726 goto harderr; 727 } 728 729 mbx->sz = sc->data.blksize; 730 731 /* for first block */ 732 mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz; 733 mbx->skip = 0; 734 735 nextblock: 736 if (!(sc->data.flags & SCDVALID)) 737 goto changed; 738 739 blknum = bp->bio_offset / mbx->sz + mbx->skip/mbx->sz; 740 741 XDEBUG(sc, 2, "scd_doread: read blknum=%d\n", blknum); 742 743 /* build parameter block */ 744 hsg2msf(blknum, sdata); 745 746 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 747 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 748 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 749 750 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 751 goto writeparam; 752 753 mbx->count = 100; 754 sc->ch_state = SCD_S_WAITFIFO; 755 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 756 return; 757 758 case SCD_S_WAITSPIN: 759 sc->ch_state = SCD_S_WAITSPIN; 760 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 761 if (mbx->count-- <= 0) { 762 device_printf(sc->dev, "timeout waiting for drive to spin up.\n"); 763 goto harderr; 764 } 765 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 766 sc->ch_state = SCD_S_WAITSPIN; 767 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 768 return; 769 } 770 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 771 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 772 case 0x20: 773 i = SCD_READ(sc, IREG_RESULT); 774 print_error(sc, i); 775 goto harderr; 776 case 0x00: 777 (void)SCD_READ(sc, IREG_RESULT); 778 sc->data.flags |= SCDSPINNING; 779 break; 780 } 781 XDEBUG(sc, 1, "DEBUG: spin up complete\n"); 782 783 state = SCD_S_BEGIN1; 784 goto loop; 785 786 case SCD_S_WAITFIFO: 787 sc->ch_state = SCD_S_WAITFIFO; 788 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 789 if (mbx->count-- <= 0) { 790 device_printf(sc->dev, "timeout. write param not ready.\n"); 791 goto harderr; 792 } 793 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 794 sc->ch_state = SCD_S_WAITFIFO; 795 sc->ch = timeout(scd_timeout, (caddr_t)sc,hz/100); /* XXX */ 796 return; 797 } 798 XDEBUG(sc, 1, "mbx->count (writeparamwait) = %d(%d)\n", mbx->count, 100); 799 800 writeparam: 801 /* The reason this test isn't done 'till now is to make sure */ 802 /* that it is ok to send the SPIN_UP cmd below. */ 803 if (!(sc->data.flags & SCDSPINNING)) { 804 XDEBUG(sc, 1, "spinning up drive ...\n"); 805 SCD_WRITE(sc, OREG_COMMAND, CMD_SPIN_UP); 806 mbx->count = 300; 807 sc->ch_state = SCD_S_WAITSPIN; 808 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 809 return; 810 } 811 812 /* send the read command */ 813 critical_enter(); 814 SCD_WRITE(sc, OREG_WPARAMS, sdata[0]); 815 SCD_WRITE(sc, OREG_WPARAMS, sdata[1]); 816 SCD_WRITE(sc, OREG_WPARAMS, sdata[2]); 817 SCD_WRITE(sc, OREG_WPARAMS, 0); 818 SCD_WRITE(sc, OREG_WPARAMS, 0); 819 SCD_WRITE(sc, OREG_WPARAMS, 1); 820 SCD_WRITE(sc, OREG_COMMAND, CMD_READ); 821 critical_exit(); 822 823 mbx->count = RDELAY_WAITREAD; 824 for (i = 0; i < 50; i++) { 825 if (STATUS_BIT(sc, SBIT_DATA_READY)) 826 goto got_data; 827 DELAY(100); 828 } 829 830 sc->ch_state = SCD_S_WAITREAD; 831 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 832 return; 833 834 case SCD_S_WAITREAD: 835 sc->ch_state = SCD_S_WAITREAD; 836 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 837 if (mbx->count-- <= 0) { 838 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 839 goto got_param; 840 device_printf(sc->dev, "timeout while reading data\n"); 841 goto readerr; 842 } 843 if (!STATUS_BIT(sc, SBIT_DATA_READY)) { 844 process_attention(sc); 845 if (!(sc->data.flags & SCDVALID)) 846 goto changed; 847 sc->ch_state = SCD_S_WAITREAD; 848 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 849 return; 850 } 851 XDEBUG(sc, 2, "mbx->count (after RDY_BIT) = %d(%d)\n", mbx->count, RDELAY_WAITREAD); 852 853 got_data: 854 /* data is ready */ 855 addr = bp->bio_data + mbx->skip; 856 SCD_WRITE(sc, OREG_CONTROL, CBIT_DATA_READY_CLEAR); 857 SCD_READ_MULTI(sc, IREG_DATA, addr, mbx->sz); 858 859 mbx->count = 100; 860 for (i = 0; i < 20; i++) { 861 if (STATUS_BIT(sc, SBIT_RESULT_READY)) 862 goto waitfor_param; 863 DELAY(100); 864 } 865 goto waitfor_param; 866 867 case SCD_S_WAITPARAM: 868 sc->ch_state = SCD_S_WAITPARAM; 869 untimeout(scd_timeout,(caddr_t)sc, sc->ch); 870 if (mbx->count-- <= 0) { 871 device_printf(sc->dev, "timeout waiting for params\n"); 872 goto readerr; 873 } 874 875 waitfor_param: 876 if (!STATUS_BIT(sc, SBIT_RESULT_READY)) { 877 sc->ch_state = SCD_S_WAITPARAM; 878 sc->ch = timeout(scd_timeout, (caddr_t)sc, hz/100); /* XXX */ 879 return; 880 } 881 #ifdef SCD_DEBUG 882 if (mbx->count < 100 && scd_debuglevel > 0) 883 device_printf(sc->dev, "mbx->count (paramwait) = %d(%d)\n", mbx->count, 100); 884 #endif 885 886 got_param: 887 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 888 switch ((i = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 889 case 0x50: 890 switch (i) { 891 case ERR_FATAL_READ_ERROR1: 892 case ERR_FATAL_READ_ERROR2: 893 device_printf(sc->dev, "unrecoverable read error 0x%x\n", i); 894 goto harderr; 895 } 896 break; 897 case 0x20: 898 i = SCD_READ(sc, IREG_RESULT); 899 switch (i) { 900 case ERR_NOT_SPINNING: 901 XDEBUG(sc, 1, "read error: drive not spinning\n"); 902 if (mbx->retry-- > 0) { 903 state = SCD_S_BEGIN1; 904 sc->data.flags &= ~SCDSPINNING; 905 goto loop; 906 } 907 goto harderr; 908 default: 909 print_error(sc, i); 910 goto readerr; 911 } 912 case 0x00: 913 i = SCD_READ(sc, IREG_RESULT); 914 break; 915 } 916 917 if (--mbx->nblk > 0) { 918 mbx->skip += mbx->sz; 919 goto nextblock; 920 } 921 922 /* return buffer */ 923 bp->bio_resid = 0; 924 biodone(bp); 925 926 sc->data.flags &= ~SCDMBXBSY; 927 scd_start(sc); 928 return; 929 } 930 931 readerr: 932 if (mbx->retry-- > 0) { 933 device_printf(sc->dev, "retrying ...\n"); 934 state = SCD_S_BEGIN1; 935 goto loop; 936 } 937 harderr: 938 /* invalidate the buffer */ 939 bp->bio_error = EIO; 940 bp->bio_flags |= BIO_ERROR; 941 bp->bio_resid = bp->bio_bcount; 942 biodone(bp); 943 944 sc->data.flags &= ~SCDMBXBSY; 945 scd_start(sc); 946 return; 947 948 changed: 949 device_printf(sc->dev, "media changed\n"); 950 goto harderr; 951 } 952 953 static void 954 hsg2msf(int hsg, bcd_t *msf) 955 { 956 957 hsg += 150; 958 M_msf(msf) = bin2bcd(hsg / 4500); 959 hsg %= 4500; 960 S_msf(msf) = bin2bcd(hsg / 75); 961 F_msf(msf) = bin2bcd(hsg % 75); 962 } 963 964 static int 965 msf2hsg(bcd_t *msf) 966 { 967 968 return (bcd2bin(M_msf(msf)) * 60 + 969 bcd2bin(S_msf(msf))) * 75 + 970 bcd2bin(F_msf(msf)) - 150; 971 } 972 973 static void 974 process_attention(struct scd_softc *sc) 975 { 976 unsigned char code; 977 int count = 0; 978 979 while (IS_ATTENTION(sc) && count++ < 30) { 980 SCD_WRITE(sc, OREG_CONTROL, CBIT_ATTENTION_CLEAR); 981 code = SCD_READ(sc, IREG_RESULT); 982 983 #ifdef SCD_DEBUG 984 if (scd_debuglevel > 0) { 985 if (count == 1) 986 device_printf(sc->dev, "DEBUG: ATTENTIONS = 0x%x", code); 987 else 988 printf(",0x%x", code); 989 } 990 #endif 991 992 switch (code) { 993 case ATTEN_SPIN_DOWN: 994 sc->data.flags &= ~SCDSPINNING; 995 break; 996 997 case ATTEN_SPIN_UP_DONE: 998 sc->data.flags |= SCDSPINNING; 999 break; 1000 1001 case ATTEN_AUDIO_DONE: 1002 sc->data.audio_status = CD_AS_PLAY_COMPLETED; 1003 break; 1004 1005 case ATTEN_DRIVE_LOADED: 1006 sc->data.flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1007 sc->data.audio_status = CD_AS_AUDIO_INVALID; 1008 break; 1009 1010 case ATTEN_EJECT_PUSHED: 1011 sc->data.flags &= ~SCDVALID; 1012 break; 1013 } 1014 DELAY(100); 1015 } 1016 #ifdef SCD_DEBUG 1017 if (scd_debuglevel > 0 && count > 0) 1018 printf("\n"); 1019 #endif 1020 } 1021 1022 /* Returns 0 OR sony error code */ 1023 static int 1024 spin_up(struct scd_softc *sc) 1025 { 1026 unsigned char res_reg[12]; 1027 unsigned int res_size; 1028 int rc; 1029 int loop_count = 0; 1030 1031 again: 1032 rc = send_cmd(sc, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1033 if (rc != 0) { 1034 XDEBUG(sc, 2, "CMD_SPIN_UP error 0x%x\n", rc); 1035 return (rc); 1036 } 1037 1038 if (!(sc->data.flags & SCDTOC)) { 1039 rc = send_cmd(sc, CMD_READ_TOC, 0); 1040 if (rc == ERR_NOT_SPINNING) { 1041 if (loop_count++ < 3) 1042 goto again; 1043 return (rc); 1044 } 1045 if (rc != 0) 1046 return (rc); 1047 } 1048 1049 sc->data.flags |= SCDSPINNING; 1050 1051 return (0); 1052 } 1053 1054 static struct sony_tracklist * 1055 get_tl(struct sony_toc *toc, int size) 1056 { 1057 struct sony_tracklist *tl = &toc->tracks[0]; 1058 1059 if (tl->track != 0xb0) 1060 return (tl); 1061 if (tl->track != 0xb1) 1062 return (tl); 1063 tl = (struct sony_tracklist *)((char *)tl + 9); 1064 if (tl->track != 0xb2) 1065 return (tl); 1066 tl = (struct sony_tracklist *)((char *)tl + 9); 1067 if (tl->track != 0xb3) 1068 return (tl); 1069 tl = (struct sony_tracklist *)((char *)tl + 9); 1070 if (tl->track != 0xb4) 1071 return (tl); 1072 tl = (struct sony_tracklist *)((char *)tl + 9); 1073 if (tl->track != 0xc0) 1074 return (tl); 1075 tl = (struct sony_tracklist *)((char *)tl + 9); 1076 return (tl); 1077 } 1078 1079 static int 1080 read_toc(struct scd_softc *sc) 1081 { 1082 struct sony_toc toc; 1083 struct sony_tracklist *tl; 1084 int rc, i, j; 1085 u_long first, last; 1086 1087 rc = send_cmd(sc, CMD_GET_TOC, 1, 1); 1088 if (rc < 0) 1089 return (rc); 1090 if (rc > sizeof(toc)) { 1091 device_printf(sc->dev, "program error: toc too large (%d)\n", rc); 1092 return (EIO); 1093 } 1094 if (get_result(sc, rc, (u_char *)&toc) != 0) 1095 return (EIO); 1096 1097 XDEBUG(sc, 1, "toc read. len = %d, sizeof(toc) = %d\n", rc, sizeof(toc)); 1098 1099 tl = get_tl(&toc, rc); 1100 first = msf2hsg(tl->start_msf); 1101 last = msf2hsg(toc.lead_out_start_msf); 1102 sc->data.blksize = SCDBLKSIZE; 1103 sc->data.disksize = last*sc->data.blksize/DEV_BSIZE; 1104 1105 XDEBUG(sc, 1, "firstsector = %ld, lastsector = %ld", first, last); 1106 1107 sc->data.first_track = bcd2bin(toc.first_track); 1108 sc->data.last_track = bcd2bin(toc.last_track); 1109 if (sc->data.last_track > (MAX_TRACKS-2)) 1110 sc->data.last_track = MAX_TRACKS-2; 1111 for (j = 0, i = sc->data.first_track; i <= sc->data.last_track; i++, j++) { 1112 sc->data.toc[i].adr = tl[j].adr; 1113 sc->data.toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1114 bcopy(tl[j].start_msf, sc->data.toc[i].start_msf, 3); 1115 #ifdef SCD_DEBUG 1116 if (scd_debuglevel > 0) { 1117 if ((j % 3) == 0) { 1118 printf("\n"); 1119 device_printf(sc->dev, "tracks "); 1120 } 1121 printf("[%03d: %2d %2d %2d] ", i, 1122 bcd2bin(sc->data.toc[i].start_msf[0]), 1123 bcd2bin(sc->data.toc[i].start_msf[1]), 1124 bcd2bin(sc->data.toc[i].start_msf[2])); 1125 } 1126 #endif 1127 } 1128 bcopy(toc.lead_out_start_msf, sc->data.toc[sc->data.last_track+1].start_msf, 3); 1129 #ifdef SCD_DEBUG 1130 if (scd_debuglevel > 0) { 1131 i = sc->data.last_track+1; 1132 printf("[END: %2d %2d %2d]\n", 1133 bcd2bin(sc->data.toc[i].start_msf[0]), 1134 bcd2bin(sc->data.toc[i].start_msf[1]), 1135 bcd2bin(sc->data.toc[i].start_msf[2])); 1136 } 1137 #endif 1138 1139 sc->data.flags |= SCDTOC; 1140 1141 return (0); 1142 } 1143 1144 static void 1145 init_drive(struct scd_softc *sc) 1146 { 1147 int rc; 1148 1149 rc = send_cmd(sc, CMD_SET_DRIVE_PARAM, 2, 1150 0x05, 0x03 | ((sc->data.double_speed) ? 0x04: 0)); 1151 if (rc != 0) 1152 device_printf(sc->dev, "Unable to set parameters. Errcode = 0x%x\n", rc); 1153 } 1154 1155 /* Returns 0 or errno */ 1156 static int 1157 get_result(struct scd_softc *sc, int result_len, u_char *result) 1158 { 1159 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1160 1161 XDEBUG(sc, 1, "DEBUG: get_result: bytes=%d\n", result_len); 1162 1163 while (result_len-- > 0) { 1164 if (loop_index++ >= 10) { 1165 loop_index = 1; 1166 if (waitfor_status_bits(sc, SBIT_RESULT_READY, 0)) 1167 return (EIO); 1168 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1169 } 1170 if (result) 1171 *result++ = SCD_READ(sc, IREG_RESULT); 1172 else 1173 (void)SCD_READ(sc, IREG_RESULT); 1174 } 1175 return (0); 1176 } 1177 1178 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1179 static int 1180 send_cmd(struct scd_softc *sc, u_char cmd, u_int nargs, ...) 1181 { 1182 va_list ap; 1183 u_char c; 1184 int rc; 1185 int i; 1186 1187 if (waitfor_status_bits(sc, 0, SBIT_BUSY)) { 1188 device_printf(sc->dev, "drive busy\n"); 1189 return (-0x100); 1190 } 1191 1192 XDEBUG(sc, 1, "DEBUG: send_cmd: cmd=0x%x nargs=%d", cmd, nargs); 1193 1194 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1195 SCD_WRITE(sc, OREG_CONTROL, CBIT_RPARAM_CLEAR); 1196 1197 for (i = 0; i < 100; i++) 1198 if (FSTATUS_BIT(sc, FBIT_WPARAM_READY)) 1199 break; 1200 if (!FSTATUS_BIT(sc, FBIT_WPARAM_READY)) { 1201 XDEBUG(sc, 1, "\nwparam timeout\n"); 1202 return (-EIO); 1203 } 1204 1205 va_start(ap, nargs); 1206 for (i = 0; i < nargs; i++) { 1207 c = (u_char)va_arg(ap, int); 1208 SCD_WRITE(sc, OREG_WPARAMS, c); 1209 XDEBUG(sc, 1, ",{0x%x}", c); 1210 } 1211 va_end(ap); 1212 XDEBUG(sc, 1, "\n"); 1213 1214 SCD_WRITE(sc, OREG_COMMAND, cmd); 1215 1216 rc = waitfor_status_bits(sc, SBIT_RESULT_READY, SBIT_BUSY); 1217 if (rc) 1218 return (-0x100); 1219 1220 SCD_WRITE(sc, OREG_CONTROL, CBIT_RESULT_READY_CLEAR); 1221 switch ((rc = SCD_READ(sc, IREG_RESULT)) & 0xf0) { 1222 case 0x20: 1223 rc = SCD_READ(sc, IREG_RESULT); 1224 /* FALLTHROUGH */ 1225 case 0x50: 1226 XDEBUG(sc, 1, "DEBUG: send_cmd: drive_error=0x%x\n", rc); 1227 return (-rc); 1228 case 0x00: 1229 default: 1230 rc = SCD_READ(sc, IREG_RESULT); 1231 XDEBUG(sc, 1, "DEBUG: send_cmd: result_len=%d\n", rc); 1232 return (rc); 1233 } 1234 } 1235 1236 static void 1237 print_error(struct scd_softc *sc, int errcode) 1238 { 1239 1240 switch (errcode) { 1241 case -ERR_CD_NOT_LOADED: 1242 device_printf(sc->dev, "door is open\n"); 1243 break; 1244 case -ERR_NO_CD_INSIDE: 1245 device_printf(sc->dev, "no cd inside\n"); 1246 break; 1247 default: 1248 if (errcode == -0x100 || errcode > 0) 1249 device_printf(sc->dev, "device timeout\n"); 1250 else 1251 device_printf(sc->dev, "unexpected error 0x%x\n", -errcode); 1252 break; 1253 } 1254 } 1255 1256 /* Returns 0 or errno value */ 1257 static int 1258 waitfor_status_bits(struct scd_softc *sc, int bits_set, int bits_clear) 1259 { 1260 u_int flags = sc->data.flags; 1261 u_int max_loop; 1262 u_char c = 0; 1263 1264 if (flags & SCDPROBING) { 1265 max_loop = 0; 1266 while (max_loop++ < 1000) { 1267 c = SCD_READ(sc, IREG_STATUS); 1268 if (c == 0xff) 1269 return (EIO); 1270 if (c & SBIT_ATTENTION) { 1271 process_attention(sc); 1272 continue; 1273 } 1274 if ((c & bits_set) == bits_set && 1275 (c & bits_clear) == 0) 1276 { 1277 break; 1278 } 1279 DELAY(10000); 1280 } 1281 } else { 1282 max_loop = 100; 1283 while (max_loop-- > 0) { 1284 c = SCD_READ(sc, IREG_STATUS); 1285 if (c & SBIT_ATTENTION) { 1286 process_attention(sc); 1287 continue; 1288 } 1289 if ((c & bits_set) == bits_set && 1290 (c & bits_clear) == 0) 1291 { 1292 break; 1293 } 1294 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1295 } 1296 } 1297 if ((c & bits_set) == bits_set && 1298 (c & bits_clear) == 0) 1299 { 1300 return (0); 1301 } 1302 #ifdef SCD_DEBUG 1303 if (scd_debuglevel > 0) 1304 device_printf(sc->dev, "DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", c, bits_set, bits_clear); 1305 else 1306 #endif 1307 device_printf(sc->dev, "timeout.\n"); 1308 return (EIO); 1309 } 1310 1311 /* these two routines for xcdplayer - "borrowed" from mcd.c */ 1312 static int 1313 scd_toc_header (struct scd_softc *sc, struct ioc_toc_header* th) 1314 { 1315 int rc; 1316 1317 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1318 print_error(sc, rc); 1319 return (EIO); 1320 } 1321 1322 th->starting_track = sc->data.first_track; 1323 th->ending_track = sc->data.last_track; 1324 th->len = 0; /* not used */ 1325 1326 return (0); 1327 } 1328 1329 static int 1330 scd_toc_entrys (struct scd_softc *sc, struct ioc_read_toc_entry *te) 1331 { 1332 struct cd_toc_entry toc_entry; 1333 int rc, i, len = te->data_len; 1334 1335 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1336 print_error(sc, rc); 1337 return (EIO); 1338 } 1339 1340 /* find the toc to copy*/ 1341 i = te->starting_track; 1342 if (i == SCD_LASTPLUS1) 1343 i = sc->data.last_track + 1; 1344 1345 /* verify starting track */ 1346 if (i < sc->data.first_track || i > sc->data.last_track+1) 1347 return (EINVAL); 1348 1349 /* valid length ? */ 1350 if (len < sizeof(struct cd_toc_entry) 1351 || (len % sizeof(struct cd_toc_entry)) != 0) 1352 return (EINVAL); 1353 1354 /* copy the toc data */ 1355 toc_entry.control = sc->data.toc[i].ctl; 1356 toc_entry.addr_type = te->address_format; 1357 toc_entry.track = i; 1358 if (te->address_format == CD_MSF_FORMAT) { 1359 toc_entry.addr.msf.unused = 0; 1360 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1361 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1362 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1363 } 1364 1365 /* copy the data back */ 1366 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1367 return (EFAULT); 1368 1369 return (0); 1370 } 1371 1372 1373 static int 1374 scd_toc_entry (struct scd_softc *sc, struct ioc_read_toc_single_entry *te) 1375 { 1376 struct cd_toc_entry toc_entry; 1377 int rc, i; 1378 1379 if (!(sc->data.flags & SCDTOC) && (rc = read_toc(sc)) != 0) { 1380 print_error(sc, rc); 1381 return (EIO); 1382 } 1383 1384 /* find the toc to copy*/ 1385 i = te->track; 1386 if (i == SCD_LASTPLUS1) 1387 i = sc->data.last_track + 1; 1388 1389 /* verify starting track */ 1390 if (i < sc->data.first_track || i > sc->data.last_track+1) 1391 return (EINVAL); 1392 1393 /* copy the toc data */ 1394 toc_entry.control = sc->data.toc[i].ctl; 1395 toc_entry.addr_type = te->address_format; 1396 toc_entry.track = i; 1397 if (te->address_format == CD_MSF_FORMAT) { 1398 toc_entry.addr.msf.unused = 0; 1399 toc_entry.addr.msf.minute = bcd2bin(sc->data.toc[i].start_msf[0]); 1400 toc_entry.addr.msf.second = bcd2bin(sc->data.toc[i].start_msf[1]); 1401 toc_entry.addr.msf.frame = bcd2bin(sc->data.toc[i].start_msf[2]); 1402 } 1403 1404 /* copy the data back */ 1405 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); 1406 1407 return (0); 1408 }
Cache object: 3dc5a5b077b76f55cf2c6ecfd2c536dd
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