scd.c revision 47625
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 withough 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 44/* $Id: scd.c,v 1.45 1999/05/09 20:29:04 phk Exp $ */ 45 46/* Please send any comments to micke@dynas.se */ 47 48#define SCD_DEBUG 0 49 50#include "scd.h" 51#if NSCD > 0 52#include "opt_devfs.h" 53#include <sys/param.h> 54#include <sys/systm.h> 55#include <sys/conf.h> 56#include <sys/buf.h> 57#include <sys/cdio.h> 58#include <sys/dkbad.h> 59#include <sys/disklabel.h> 60#include <sys/kernel.h> 61#ifdef DEVFS 62#include <sys/devfsext.h> 63#endif /*DEVFS*/ 64 65#include <machine/clock.h> 66#include <machine/stdarg.h> 67 68#include <i386/isa/isa_device.h> 69#include <i386/isa/scdreg.h> 70 71 72#define scd_part(dev) ((minor(dev)) & 7) 73#define scd_unit(dev) (((minor(dev)) & 0x38) >> 3) 74#define scd_phys(dev) (((minor(dev)) & 0x40) >> 6) 75#define RAW_PART 2 76 77/* flags */ 78#define SCDOPEN 0x0001 /* device opened */ 79#define SCDVALID 0x0002 /* parameters loaded */ 80#define SCDINIT 0x0004 /* device is init'd */ 81#define SCDPROBING 0x0020 /* probing */ 82#define SCDTOC 0x0100 /* already read toc */ 83#define SCDMBXBSY 0x0200 /* local mbx is busy */ 84#define SCDSPINNING 0x0400 /* drive is spun up */ 85 86#define SCD_S_BEGIN 0 87#define SCD_S_BEGIN1 1 88#define SCD_S_WAITSTAT 2 89#define SCD_S_WAITFIFO 3 90#define SCD_S_WAITSPIN 4 91#define SCD_S_WAITREAD 5 92#define SCD_S_WAITPARAM 6 93 94#define RDELAY_WAIT 300 95#define RDELAY_WAITREAD 300 96 97#define SCDBLKSIZE 2048 98 99#ifdef SCD_DEBUG 100 static int scd_debuglevel = SCD_DEBUG; 101# define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;} 102#else 103# define XDEBUG(level, data) 104#endif 105 106struct scd_mbx { 107 short unit; 108 short port; 109 short retry; 110 short nblk; 111 int sz; 112 u_long skip; 113 struct buf *bp; 114 int p_offset; 115 short count; 116}; 117 118static struct scd_data { 119 int iobase; 120 char double_speed; 121 char *name; 122 short flags; 123 int blksize; 124 u_long disksize; 125 struct disklabel dlabel; 126 int openflag; 127 struct { 128 unsigned int adr :4; 129 unsigned int ctl :4; /* xcdplayer needs this */ 130 unsigned char start_msf[3]; 131 } toc[MAX_TRACKS]; 132 short first_track; 133 short last_track; 134 struct ioc_play_msf last_play; 135 136 short audio_status; 137 struct buf_queue_head head; /* head of buf queue */ 138 struct scd_mbx mbx; 139#ifdef DEVFS 140 void *ra_devfs_token; 141 void *rc_devfs_token; 142 void *a_devfs_token; 143 void *c_devfs_token; 144#endif 145} scd_data[NSCD]; 146 147/* prototypes */ 148static void hsg2msf(int hsg, bcd_t *msf); 149static int msf2hsg(bcd_t *msf); 150 151static void process_attention(unsigned unit); 152static __inline void write_control(unsigned port, unsigned data); 153static int waitfor_status_bits(int unit, int bits_set, int bits_clear); 154static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...); 155static void init_drive(unsigned unit); 156static int spin_up(unsigned unit); 157static int read_toc(unsigned unit); 158static int get_result(u_int unit, int result_len, u_char *result); 159static void print_error(int unit, int errcode); 160 161static void scd_start(int unit); 162static timeout_t scd_timeout; 163static void scd_doread(int state, struct scd_mbx *mbxin); 164 165static int scd_eject(int unit); 166static int scd_stop(int unit); 167static int scd_pause(int unit); 168static int scd_resume(int unit); 169static int scd_playtracks(int unit, struct ioc_play_track *pt); 170static int scd_playmsf(int unit, struct ioc_play_msf *msf); 171static int scd_play(int unit, struct ioc_play_msf *msf); 172static int scd_subchan(int unit, struct ioc_read_subchannel *sc); 173static int read_subcode(int unit, struct sony_subchannel_position_data *sc); 174 175/* for xcdplayer */ 176static int scd_toc_header(int unit, struct ioc_toc_header *th); 177static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 178static int scd_toc_entry(int unit, struct ioc_read_toc_single_entry *te); 179#define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 180 181static int scd_probe(struct isa_device *dev); 182static int scd_attach(struct isa_device *dev); 183struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; 184 185/* For canceling our timeout */ 186static struct callout_handle tohandle = CALLOUT_HANDLE_INITIALIZER(&tohanle); 187 188static d_open_t scdopen; 189static d_close_t scdclose; 190static d_ioctl_t scdioctl; 191static d_strategy_t scdstrategy; 192 193#define CDEV_MAJOR 45 194#define BDEV_MAJOR 16 195static struct cdevsw scd_cdevsw = { 196 /* open */ scdopen, 197 /* close */ scdclose, 198 /* read */ physread, 199 /* write */ nowrite, 200 /* ioctl */ scdioctl, 201 /* stop */ nostop, 202 /* reset */ noreset, 203 /* devtotty */ nodevtotty, 204 /* poll */ nopoll, 205 /* mmap */ nommap, 206 /* strategy */ scdstrategy, 207 /* name */ "scd", 208 /* parms */ noparms, 209 /* maj */ CDEV_MAJOR, 210 /* dump */ nodump, 211 /* psize */ nopsize, 212 /* flags */ D_DISK, 213 /* maxio */ 0, 214 /* bmaj */ BDEV_MAJOR 215}; 216 217 218static int 219scd_attach(struct isa_device *dev) 220{ 221 int unit = dev->id_unit; 222 struct scd_data *cd = scd_data + unit; 223 224 cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ 225 226 /* name filled in probe */ 227 printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name); 228 229 init_drive(dev->id_unit); 230 231 cd->flags = SCDINIT; 232 cd->audio_status = CD_AS_AUDIO_INVALID; 233 bufq_init(&cd->head); 234 235#ifdef DEVFS 236 cd->ra_devfs_token = 237 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, 0), 238 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 239 "rscd%da", unit); 240 cd->rc_devfs_token = 241 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 242 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 243 "rscd%dc", unit); 244 cd->a_devfs_token = 245 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, 0), 246 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 247 "scd%da", unit); 248 cd->c_devfs_token = 249 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 250 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 251 "scd%dc", unit); 252#endif 253 return 1; 254} 255 256static int 257scdopen(dev_t dev, int flags, int fmt, struct proc *p) 258{ 259 int unit,part,phys; 260 int rc; 261 struct scd_data *cd; 262 263 unit = scd_unit(dev); 264 if (unit >= NSCD) 265 return ENXIO; 266 267 cd = scd_data + unit; 268 part = scd_part(dev); 269 phys = scd_phys(dev); 270 271 /* not initialized*/ 272 if (!(cd->flags & SCDINIT)) 273 return ENXIO; 274 275 /* invalidated in the meantime? mark all open part's invalid */ 276 if (cd->openflag) 277 return ENXIO; 278 279 XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS))); 280 281 if ((rc = spin_up(unit)) != 0) { 282 print_error(unit, rc); 283 return EIO; 284 } 285 if (!(cd->flags & SCDTOC)) { 286 int loop_count = 3; 287 288 while (loop_count-- > 0 && (rc = read_toc(unit)) != 0) { 289 if (rc == ERR_NOT_SPINNING) { 290 rc = spin_up(unit); 291 if (rc) { 292 print_error(unit, rc);\ 293 return EIO; 294 } 295 continue; 296 } 297 printf("scd%d: TOC read error 0x%x\n", unit, rc); 298 return EIO; 299 } 300 } 301 302 cd->openflag = 1; 303 cd->flags |= SCDVALID; 304 305 return 0; 306} 307 308static int 309scdclose(dev_t dev, int flags, int fmt, struct proc *p) 310{ 311 int unit,part,phys; 312 struct scd_data *cd; 313 314 unit = scd_unit(dev); 315 if (unit >= NSCD) 316 return ENXIO; 317 318 cd = scd_data + unit; 319 part = scd_part(dev); 320 phys = scd_phys(dev); 321 322 if (!(cd->flags & SCDINIT) || !cd->openflag) 323 return ENXIO; 324 325 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { 326 (void)send_cmd(unit, CMD_SPIN_DOWN, 0); 327 cd->flags &= ~SCDSPINNING; 328 } 329 330 331 /* close channel */ 332 cd->openflag = 0; 333 334 return 0; 335} 336 337static void 338scdstrategy(struct buf *bp) 339{ 340 struct scd_data *cd; 341 int s; 342 int unit = scd_unit(bp->b_dev); 343 344 cd = scd_data + unit; 345 346 XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n", 347 unit, (long)bp->b_blkno, bp->b_bcount)); 348 349 if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) { 350 printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n", 351 unit, (long)bp->b_blkno, bp->b_bcount); 352 bp->b_error = EINVAL; 353 bp->b_flags |= B_ERROR; 354 goto bad; 355 } 356 357 /* if device invalidated (e.g. media change, door open), error */ 358 if (!(cd->flags & SCDVALID)) { 359 printf("scd%d: media changed\n", unit); 360 bp->b_error = EIO; 361 goto bad; 362 } 363 364 /* read only */ 365 if (!(bp->b_flags & B_READ)) { 366 bp->b_error = EROFS; 367 goto bad; 368 } 369 370 /* no data to read */ 371 if (bp->b_bcount == 0) 372 goto done; 373 374 if (!(cd->flags & SCDTOC)) { 375 bp->b_error = EIO; 376 goto bad; 377 } 378 /* adjust transfer if necessary */ 379 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) 380 goto done; 381 382 bp->b_pblkno = bp->b_blkno; 383 bp->b_resid = 0; 384 385 /* queue it */ 386 s = splbio(); 387 bufqdisksort(&cd->head, bp); 388 splx(s); 389 390 /* now check whether we can perform processing */ 391 scd_start(unit); 392 return; 393 394bad: 395 bp->b_flags |= B_ERROR; 396done: 397 bp->b_resid = bp->b_bcount; 398 biodone(bp); 399 return; 400} 401 402static void 403scd_start(int unit) 404{ 405 struct scd_data *cd = scd_data + unit; 406 struct buf *bp; 407 struct partition *p; 408 int s = splbio(); 409 410 if (cd->flags & SCDMBXBSY) { 411 splx(s); 412 return; 413 } 414 415 bp = bufq_first(&cd->head); 416 if (bp != 0) { 417 /* block found to process, dequeue */ 418 bufq_remove(&cd->head, bp); 419 cd->flags |= SCDMBXBSY; 420 splx(s); 421 } else { 422 /* nothing to do */ 423 splx(s); 424 return; 425 } 426 427 p = cd->dlabel.d_partitions + scd_part(bp->b_dev); 428 429 cd->mbx.unit = unit; 430 cd->mbx.port = cd->iobase; 431 cd->mbx.retry = 3; 432 cd->mbx.bp = bp; 433 cd->mbx.p_offset = p->p_offset; 434 splx(s); 435 436 scd_doread(SCD_S_BEGIN,&(cd->mbx)); 437 return; 438} 439 440static int 441scdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct proc *p) 442{ 443 struct scd_data *cd; 444 int unit,part; 445 446 unit = scd_unit(dev); 447 part = scd_part(dev); 448 cd = scd_data + unit; 449 450 XDEBUG(1, ("scd%d: ioctl: cmd=0x%lx\n", unit, cmd)); 451 452 if (!(cd->flags & SCDVALID)) 453 return EIO; 454 455 switch (cmd) { 456 case DIOCSBAD: 457 return EINVAL; 458 case DIOCGDINFO: 459 *(struct disklabel *)addr = cd->dlabel; 460 return 0; 461 case DIOCGPART: 462 ((struct partinfo *)addr)->disklab = &cd->dlabel; 463 ((struct partinfo *)addr)->part = 464 &cd->dlabel.d_partitions[0]; 465 return 0; 466 case CDIOCPLAYTRACKS: 467 return scd_playtracks(unit, (struct ioc_play_track *) addr); 468 case CDIOCPLAYBLOCKS: 469 return EINVAL; 470 case CDIOCPLAYMSF: 471 return scd_playmsf(unit, (struct ioc_play_msf *) addr); 472 case CDIOCREADSUBCHANNEL: 473 return scd_subchan(unit, (struct ioc_read_subchannel *) addr); 474 case CDIOREADTOCHEADER: 475 return scd_toc_header (unit, (struct ioc_toc_header *) addr); 476 case CDIOREADTOCENTRYS: 477 return scd_toc_entrys (unit, (struct ioc_read_toc_entry*) addr); 478 case CDIOREADTOCENTRY: 479 return scd_toc_entry (unit, (struct ioc_read_toc_single_entry*) addr); 480 case CDIOCSETPATCH: 481 case CDIOCGETVOL: 482 case CDIOCSETVOL: 483 case CDIOCSETMONO: 484 case CDIOCSETSTERIO: 485 case CDIOCSETMUTE: 486 case CDIOCSETLEFT: 487 case CDIOCSETRIGHT: 488 return EINVAL; 489 case CDIOCRESUME: 490 return scd_resume(unit); 491 case CDIOCPAUSE: 492 return scd_pause(unit); 493 case CDIOCSTART: 494 return EINVAL; 495 case CDIOCSTOP: 496 return scd_stop(unit); 497 case CDIOCEJECT: 498 return scd_eject(unit); 499 case CDIOCALLOW: 500 return 0; 501 case CDIOCSETDEBUG: 502#ifdef SCD_DEBUG 503 scd_debuglevel++; 504#endif 505 return 0; 506 case CDIOCCLRDEBUG: 507#ifdef SCD_DEBUG 508 scd_debuglevel = 0; 509 510#endif 511 return 0; 512 default: 513 printf("scd%d: unsupported ioctl (cmd=0x%lx)\n", unit, cmd); 514 return ENOTTY; 515 } 516} 517 518/*************************************************************** 519 * lower level of driver starts here 520 **************************************************************/ 521 522static int 523scd_playtracks(int unit, struct ioc_play_track *pt) 524{ 525 struct scd_data *cd = scd_data + unit; 526 struct ioc_play_msf msf; 527 int a = pt->start_track; 528 int z = pt->end_track; 529 int rc; 530 531 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 532 if (rc == -ERR_NOT_SPINNING) { 533 if (spin_up(unit) != 0) 534 return EIO; 535 rc = read_toc(unit); 536 } 537 if (rc != 0) { 538 print_error(unit, rc); 539 return EIO; 540 } 541 } 542 543 XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit, 544 a, pt->start_index, z, pt->end_index)); 545 546 if ( a < cd->first_track 547 || a > cd->last_track 548 || a > z 549 || z > cd->last_track) 550 return EINVAL; 551 552 bcopy(cd->toc[a].start_msf, &msf.start_m, 3); 553 hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m); 554 555 return scd_play(unit, &msf); 556} 557 558/* The start/end msf is expected to be in bin format */ 559static int 560scd_playmsf(int unit, struct ioc_play_msf *msfin) 561{ 562 struct ioc_play_msf msf; 563 564 msf.start_m = bin2bcd(msfin->start_m); 565 msf.start_s = bin2bcd(msfin->start_s); 566 msf.start_f = bin2bcd(msfin->start_f); 567 msf.end_m = bin2bcd(msfin->end_m); 568 msf.end_s = bin2bcd(msfin->end_s); 569 msf.end_f = bin2bcd(msfin->end_f); 570 571 return scd_play(unit, &msf); 572} 573 574/* The start/end msf is expected to be in bcd format */ 575static int 576scd_play(int unit, struct ioc_play_msf *msf) 577{ 578 struct scd_data *cd = scd_data + unit; 579 int i, rc; 580 581 XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit, 582 msf->start_m, msf->start_s, msf->start_f, 583 msf->end_m, msf->end_s, msf->end_f)); 584 585 for (i = 0; i < 2; i++) { 586 rc = send_cmd(unit, CMD_PLAY_AUDIO, 7, 587 0x03, 588 msf->start_m, msf->start_s, msf->start_f, 589 msf->end_m, msf->end_s, msf->end_f); 590 if (rc == -ERR_NOT_SPINNING) { 591 cd->flags &= ~SCDSPINNING; 592 if (spin_up(unit) != 0) 593 return EIO; 594 } else if (rc < 0) { 595 print_error(unit, rc); 596 return EIO; 597 } else { 598 break; 599 } 600 } 601 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 602 bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf)); 603 return 0; 604} 605 606static int 607scd_stop(int unit) 608{ 609 struct scd_data *cd = scd_data + unit; 610 611 (void)send_cmd(unit, CMD_STOP_AUDIO, 0); 612 cd->audio_status = CD_AS_PLAY_COMPLETED; 613 return 0; 614} 615 616static int 617scd_pause(int unit) 618{ 619 struct scd_data *cd = scd_data + unit; 620 struct sony_subchannel_position_data subpos; 621 622 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) 623 return EINVAL; 624 625 if (read_subcode(unit, &subpos) != 0) 626 return EIO; 627 628 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0) 629 return EIO; 630 631 cd->last_play.start_m = subpos.abs_msf[0]; 632 cd->last_play.start_s = subpos.abs_msf[1]; 633 cd->last_play.start_f = subpos.abs_msf[2]; 634 cd->audio_status = CD_AS_PLAY_PAUSED; 635 636 XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit, 637 cd->last_play.start_m, 638 cd->last_play.start_s, 639 cd->last_play.start_f)); 640 641 return 0; 642} 643 644static int 645scd_resume(int unit) 646{ 647 if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED) 648 return EINVAL; 649 return scd_play(unit, &scd_data[unit].last_play); 650} 651 652static int 653scd_eject(int unit) 654{ 655 struct scd_data *cd = scd_data + unit; 656 657 cd->audio_status = CD_AS_AUDIO_INVALID; 658 cd->flags &= ~(SCDSPINNING|SCDTOC); 659 660 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 || 661 send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 || 662 send_cmd(unit, CMD_EJECT, 0) != 0) 663 { 664 return EIO; 665 } 666 return 0; 667} 668 669static int 670scd_subchan(int unit, struct ioc_read_subchannel *sc) 671{ 672 struct scd_data *cd = scd_data + unit; 673 struct sony_subchannel_position_data q; 674 struct cd_sub_channel_info data; 675 676 XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit, 677 sc->address_format, 678 sc->data_format)); 679 680 if (sc->address_format != CD_MSF_FORMAT) 681 return EINVAL; 682 683 if (sc->data_format != CD_CURRENT_POSITION) 684 return EINVAL; 685 686 if (read_subcode(unit, &q) != 0) 687 return EIO; 688 689 data.header.audio_status = cd->audio_status; 690 data.what.position.data_format = CD_MSF_FORMAT; 691 data.what.position.track_number = bcd2bin(q.track_number); 692 data.what.position.reladdr.msf.unused = 0; 693 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 694 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 695 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 696 data.what.position.absaddr.msf.unused = 0; 697 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 698 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 699 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 700 701 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) 702 return EFAULT; 703 return 0; 704} 705 706static __inline void 707write_control(unsigned port, unsigned data) 708{ 709 outb(port + OREG_CONTROL, data); 710} 711 712static int 713scd_probe(struct isa_device *dev) 714{ 715 struct sony_drive_configuration drive_config; 716 int unit = dev->id_unit; 717 int rc; 718 static char namebuf[8+16+8+3]; 719 char *s = namebuf; 720 int loop_count = 0; 721 722 scd_data[unit].flags = SCDPROBING; 723 scd_data[unit].iobase = dev->id_iobase; 724 725 bzero(&drive_config, sizeof(drive_config)); 726 727again: 728 /* Reset drive */ 729 write_control(dev->id_iobase, CBIT_RESET_DRIVE); 730 731 /* Calm down */ 732 DELAY(300000); 733 734 /* Only the ATTENTION bit may be set */ 735 if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) { 736 XDEBUG(1, ("scd: too many bits set. probe failed.\n")); 737 return 0; 738 } 739 rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0); 740 if (rc != sizeof(drive_config)) { 741 /* Sometimes if the drive is playing audio I get */ 742 /* the bad result 82. Fix by repeating the reset */ 743 if (rc > 0 && loop_count++ == 0) 744 goto again; 745 return 0; 746 } 747 if (get_result(unit, rc, (u_char *)&drive_config) != 0) 748 return 0; 749 750 bcopy(drive_config.vendor, namebuf, 8); 751 s = namebuf+8; 752 while (*(s-1) == ' ') /* Strip trailing spaces */ 753 s--; 754 *s++ = ' '; 755 bcopy(drive_config.product, s, 16); 756 s += 16; 757 while (*(s-1) == ' ') 758 s--; 759 *s++ = ' '; 760 bcopy(drive_config.revision, s, 8); 761 s += 8; 762 while (*(s-1) == ' ') 763 s--; 764 *s = 0; 765 766 scd_data[unit].name = namebuf; 767 768 if (drive_config.config & 0x10) 769 scd_data[unit].double_speed = 1; 770 else 771 scd_data[unit].double_speed = 0; 772 773 return 4; 774} 775 776static int 777read_subcode(int unit, struct sony_subchannel_position_data *sc) 778{ 779 int rc; 780 781 rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0); 782 if (rc < 0 || rc < sizeof(*sc)) 783 return EIO; 784 if (get_result(unit, rc, (u_char *)sc) != 0) 785 return EIO; 786 return 0; 787} 788 789/* State machine copied from mcd.c */ 790 791/* This (and the code in mcd.c) will not work with more than one drive */ 792/* because there is only one mbxsave below. Should fix that some day. */ 793/* (mbxsave & state should probably be included in the scd_data struct and */ 794/* the unit number used as first argument to scd_doread().) /Micke */ 795 796/* state machine to process read requests 797 * initialize with SCD_S_BEGIN: reset state machine 798 * SCD_S_WAITSTAT: wait for ready (!busy) 799 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 800 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 801 * SCD_S_WAITREAD: wait for data ready, read data 802 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 803 */ 804 805static struct scd_mbx *mbxsave; 806 807static void 808scd_timeout(void *arg) 809{ 810 scd_doread((int)arg, mbxsave); 811} 812 813static void 814scd_doread(int state, struct scd_mbx *mbxin) 815{ 816 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin; 817 int unit = mbx->unit; 818 int port = mbx->port; 819 struct buf *bp = mbx->bp; 820 struct scd_data *cd = scd_data + unit; 821 int reg,i; 822 int blknum; 823 caddr_t addr; 824 static char sdata[3]; /* Must be preserved between calls to this function */ 825 826loop: 827 switch (state) { 828 case SCD_S_BEGIN: 829 mbx = mbxsave = mbxin; 830 831 case SCD_S_BEGIN1: 832 /* get status */ 833 mbx->count = RDELAY_WAIT; 834 835 process_attention(unit); 836 goto trystat; 837 838 case SCD_S_WAITSTAT: 839 untimeout(scd_timeout,(caddr_t)SCD_S_WAITSTAT, tohandle); 840 if (mbx->count-- <= 0) { 841 printf("scd%d: timeout. drive busy.\n",unit); 842 goto harderr; 843 } 844 845trystat: 846 if (IS_BUSY(port)) { 847 tohandle = timeout(scd_timeout, 848 (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */ 849 return; 850 } 851 852 process_attention(unit); 853 854 /* reject, if audio active */ 855 if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) { 856 printf("scd%d: audio is active\n",unit); 857 goto harderr; 858 } 859 860 mbx->sz = cd->blksize; 861 862 /* for first block */ 863 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 864 mbx->skip = 0; 865 866nextblock: 867 if (!(cd->flags & SCDVALID)) 868 goto changed; 869 870 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 871 + mbx->p_offset + mbx->skip/mbx->sz; 872 873 XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum)); 874 875 /* build parameter block */ 876 hsg2msf(blknum, sdata); 877 878 write_control(port, CBIT_RESULT_READY_CLEAR); 879 write_control(port, CBIT_RPARAM_CLEAR); 880 write_control(port, CBIT_DATA_READY_CLEAR); 881 882 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 883 goto writeparam; 884 885 mbx->count = 100; 886 tohandle = timeout(scd_timeout, 887 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 888 return; 889 890 case SCD_S_WAITSPIN: 891 untimeout(scd_timeout,(caddr_t)SCD_S_WAITSPIN, tohandle); 892 if (mbx->count-- <= 0) { 893 printf("scd%d: timeout waiting for drive to spin up.\n", unit); 894 goto harderr; 895 } 896 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 897 tohandle = timeout(scd_timeout, 898 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 899 return; 900 } 901 write_control(port, CBIT_RESULT_READY_CLEAR); 902 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 903 case 0x20: 904 i = inb(port+IREG_RESULT); 905 print_error(unit, i); 906 goto harderr; 907 case 0x00: 908 (void)inb(port+IREG_RESULT); 909 cd->flags |= SCDSPINNING; 910 break; 911 } 912 XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit)); 913 914 state = SCD_S_BEGIN1; 915 goto loop; 916 917 case SCD_S_WAITFIFO: 918 untimeout(scd_timeout,(caddr_t)SCD_S_WAITFIFO, tohandle); 919 if (mbx->count-- <= 0) { 920 printf("scd%d: timeout. write param not ready.\n",unit); 921 goto harderr; 922 } 923 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 924 tohandle = timeout(scd_timeout, 925 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 926 return; 927 } 928 XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100)); 929 930writeparam: 931 /* The reason this test isn't done 'till now is to make sure */ 932 /* that it is ok to send the SPIN_UP cmd below. */ 933 if (!(cd->flags & SCDSPINNING)) { 934 XDEBUG(1, ("scd%d: spinning up drive ...\n", unit)); 935 outb(port+OREG_COMMAND, CMD_SPIN_UP); 936 mbx->count = 300; 937 tohandle = timeout(scd_timeout, 938 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 939 return; 940 } 941 942 reg = port + OREG_WPARAMS; 943 /* send the read command */ 944 disable_intr(); 945 outb(reg, sdata[0]); 946 outb(reg, sdata[1]); 947 outb(reg, sdata[2]); 948 outb(reg, 0); 949 outb(reg, 0); 950 outb(reg, 1); 951 outb(port+OREG_COMMAND, CMD_READ); 952 enable_intr(); 953 954 mbx->count = RDELAY_WAITREAD; 955 for (i = 0; i < 50; i++) { 956 if (STATUS_BIT(port, SBIT_DATA_READY)) 957 goto got_data; 958 DELAY(100); 959 } 960 961 tohandle = timeout(scd_timeout, 962 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 963 return; 964 965 case SCD_S_WAITREAD: 966 untimeout(scd_timeout,(caddr_t)SCD_S_WAITREAD, tohandle); 967 if (mbx->count-- <= 0) { 968 if (STATUS_BIT(port, SBIT_RESULT_READY)) 969 goto got_param; 970 printf("scd%d: timeout while reading data\n",unit); 971 goto readerr; 972 } 973 if (!STATUS_BIT(port, SBIT_DATA_READY)) { 974 process_attention(unit); 975 if (!(cd->flags & SCDVALID)) 976 goto changed; 977 tohandle = timeout(scd_timeout, 978 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 979 return; 980 } 981 XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD)); 982 983got_data: 984 /* data is ready */ 985 addr = bp->b_data + mbx->skip; 986 write_control(port, CBIT_DATA_READY_CLEAR); 987 insb(port+IREG_DATA, addr, mbx->sz); 988 989 mbx->count = 100; 990 for (i = 0; i < 20; i++) { 991 if (STATUS_BIT(port, SBIT_RESULT_READY)) 992 goto waitfor_param; 993 DELAY(100); 994 } 995 goto waitfor_param; 996 997 case SCD_S_WAITPARAM: 998 untimeout(scd_timeout,(caddr_t)SCD_S_WAITPARAM, tohandle); 999 if (mbx->count-- <= 0) { 1000 printf("scd%d: timeout waiting for params\n",unit); 1001 goto readerr; 1002 } 1003 1004waitfor_param: 1005 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 1006 tohandle = timeout(scd_timeout, 1007 (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */ 1008 return; 1009 } 1010#if SCD_DEBUG 1011 if (mbx->count < 100 && scd_debuglevel > 0) 1012 printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100); 1013#endif 1014 1015got_param: 1016 write_control(port, CBIT_RESULT_READY_CLEAR); 1017 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 1018 case 0x50: 1019 switch (i) { 1020 case ERR_FATAL_READ_ERROR1: 1021 case ERR_FATAL_READ_ERROR2: 1022 printf("scd%d: unrecoverable read error 0x%x\n", unit, i); 1023 goto harderr; 1024 } 1025 break; 1026 case 0x20: 1027 i = inb(port+IREG_RESULT); 1028 switch (i) { 1029 case ERR_NOT_SPINNING: 1030 XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit)); 1031 if (mbx->retry-- > 0) { 1032 state = SCD_S_BEGIN1; 1033 cd->flags &= ~SCDSPINNING; 1034 goto loop; 1035 } 1036 goto harderr; 1037 default: 1038 print_error(unit, i); 1039 goto readerr; 1040 } 1041 case 0x00: 1042 i = inb(port+IREG_RESULT); 1043 break; 1044 } 1045 1046 if (--mbx->nblk > 0) { 1047 mbx->skip += mbx->sz; 1048 goto nextblock; 1049 } 1050 1051 /* return buffer */ 1052 bp->b_resid = 0; 1053 biodone(bp); 1054 1055 cd->flags &= ~SCDMBXBSY; 1056 scd_start(mbx->unit); 1057 return; 1058 } 1059 1060readerr: 1061 if (mbx->retry-- > 0) { 1062 printf("scd%d: retrying ...\n",unit); 1063 state = SCD_S_BEGIN1; 1064 goto loop; 1065 } 1066harderr: 1067 /* invalidate the buffer */ 1068 bp->b_error = EIO; 1069 bp->b_flags |= B_ERROR; 1070 bp->b_resid = bp->b_bcount; 1071 biodone(bp); 1072 1073 cd->flags &= ~SCDMBXBSY; 1074 scd_start(mbx->unit); 1075 return; 1076 1077changed: 1078 printf("scd%d: media changed\n", unit); 1079 goto harderr; 1080} 1081 1082static void 1083hsg2msf(int hsg, bcd_t *msf) 1084{ 1085 hsg += 150; 1086 M_msf(msf) = bin2bcd(hsg / 4500); 1087 hsg %= 4500; 1088 S_msf(msf) = bin2bcd(hsg / 75); 1089 F_msf(msf) = bin2bcd(hsg % 75); 1090} 1091 1092static int 1093msf2hsg(bcd_t *msf) 1094{ 1095 return (bcd2bin(M_msf(msf)) * 60 + 1096 bcd2bin(S_msf(msf))) * 75 + 1097 bcd2bin(F_msf(msf)) - 150; 1098} 1099 1100static void 1101process_attention(unsigned unit) 1102{ 1103 unsigned port = scd_data[unit].iobase; 1104 unsigned char code; 1105 int count = 0; 1106 1107 while (IS_ATTENTION(port) && count++ < 30) { 1108 write_control(port, CBIT_ATTENTION_CLEAR); 1109 code = inb(port+IREG_RESULT); 1110 1111#if SCD_DEBUG 1112 if (scd_debuglevel > 0) { 1113 if (count == 1) 1114 printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code); 1115 else 1116 printf(",0x%x", code); 1117 } 1118#endif 1119 1120 switch (code) { 1121 case ATTEN_SPIN_DOWN: 1122 scd_data[unit].flags &= ~SCDSPINNING; 1123 break; 1124 1125 case ATTEN_SPIN_UP_DONE: 1126 scd_data[unit].flags |= SCDSPINNING; 1127 break; 1128 1129 case ATTEN_AUDIO_DONE: 1130 scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED; 1131 break; 1132 1133 case ATTEN_DRIVE_LOADED: 1134 scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1135 scd_data[unit].audio_status = CD_AS_AUDIO_INVALID; 1136 break; 1137 1138 case ATTEN_EJECT_PUSHED: 1139 scd_data[unit].flags &= ~SCDVALID; 1140 break; 1141 } 1142 DELAY(100); 1143 } 1144#if SCD_DEBUG 1145 if (scd_debuglevel > 0 && count > 0) 1146 printf("\n"); 1147#endif 1148} 1149 1150/* Returns 0 OR sony error code */ 1151static int 1152spin_up(unsigned unit) 1153{ 1154 unsigned char res_reg[12]; 1155 unsigned int res_size; 1156 int rc; 1157 int loop_count = 0; 1158 1159again: 1160 rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1161 if (rc != 0) { 1162 XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc)); 1163 return rc; 1164 } 1165 1166 if (!(scd_data[unit].flags & SCDTOC)) { 1167 rc = send_cmd(unit, CMD_READ_TOC, 0); 1168 if (rc == ERR_NOT_SPINNING) { 1169 if (loop_count++ < 3) 1170 goto again; 1171 return rc; 1172 } 1173 if (rc != 0) 1174 return rc; 1175 } 1176 1177 scd_data[unit].flags |= SCDSPINNING; 1178 1179 return 0; 1180} 1181 1182static struct sony_tracklist * 1183get_tl(struct sony_toc *toc, int size) 1184{ 1185 struct sony_tracklist *tl = &toc->tracks[0]; 1186 1187 if (tl->track != 0xb0) 1188 return tl; 1189 (char *)tl += 9; 1190 if (tl->track != 0xb1) 1191 return tl; 1192 (char *)tl += 9; 1193 if (tl->track != 0xb2) 1194 return tl; 1195 (char *)tl += 9; 1196 if (tl->track != 0xb3) 1197 return tl; 1198 (char *)tl += 9; 1199 if (tl->track != 0xb4) 1200 return tl; 1201 (char *)tl += 9; 1202 if (tl->track != 0xc0) 1203 return tl; 1204 (char *)tl += 9; 1205 return tl; 1206} 1207 1208static int 1209read_toc(unsigned unit) 1210{ 1211 struct scd_data *cd; 1212 unsigned part = 0; /* For now ... */ 1213 struct sony_toc toc; 1214 struct sony_tracklist *tl; 1215 int rc, i, j; 1216 u_long first, last; 1217 1218 cd = scd_data + unit; 1219 1220 rc = send_cmd(unit, CMD_GET_TOC, 1, part+1); 1221 if (rc < 0) 1222 return rc; 1223 if (rc > sizeof(toc)) { 1224 printf("scd%d: program error: toc too large (%d)\n", unit, rc); 1225 return EIO; 1226 } 1227 if (get_result(unit, rc, (u_char *)&toc) != 0) 1228 return EIO; 1229 1230 XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc))); 1231 1232 tl = get_tl(&toc, rc); 1233 first = msf2hsg(tl->start_msf); 1234 last = msf2hsg(toc.lead_out_start_msf); 1235 cd->blksize = SCDBLKSIZE; 1236 cd->disksize = last*cd->blksize/DEV_BSIZE; 1237 1238 XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit, 1239 first, last)); 1240 1241 cd->first_track = bcd2bin(toc.first_track); 1242 cd->last_track = bcd2bin(toc.last_track); 1243 if (cd->last_track > (MAX_TRACKS-2)) 1244 cd->last_track = MAX_TRACKS-2; 1245 for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) { 1246 cd->toc[i].adr = tl[j].adr; 1247 cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1248 bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3); 1249#ifdef SCD_DEBUG 1250 if (scd_debuglevel > 0) { 1251 if ((j % 3) == 0) 1252 printf("\nscd%d: tracks ", unit); 1253 printf("[%03d: %2d %2d %2d] ", i, 1254 bcd2bin(cd->toc[i].start_msf[0]), 1255 bcd2bin(cd->toc[i].start_msf[1]), 1256 bcd2bin(cd->toc[i].start_msf[2])); 1257 } 1258#endif 1259 } 1260 bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3); 1261#ifdef SCD_DEBUG 1262 if (scd_debuglevel > 0) { 1263 i = cd->last_track+1; 1264 printf("[END: %2d %2d %2d]\n", 1265 bcd2bin(cd->toc[i].start_msf[0]), 1266 bcd2bin(cd->toc[i].start_msf[1]), 1267 bcd2bin(cd->toc[i].start_msf[2])); 1268 } 1269#endif 1270 1271 bzero(&cd->dlabel,sizeof(struct disklabel)); 1272 /* filled with spaces first */ 1273 strncpy(cd->dlabel.d_typename," ", 1274 sizeof(cd->dlabel.d_typename)); 1275 strncpy(cd->dlabel.d_typename, cd->name, 1276 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 1277 strncpy(cd->dlabel.d_packname,"unknown ", 1278 sizeof(cd->dlabel.d_packname)); 1279 cd->dlabel.d_secsize = cd->blksize; 1280 cd->dlabel.d_nsectors = 100; 1281 cd->dlabel.d_ntracks = 1; 1282 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 1283 cd->dlabel.d_secpercyl = 100; 1284 cd->dlabel.d_secperunit = cd->disksize; 1285 cd->dlabel.d_rpm = 300; 1286 cd->dlabel.d_interleave = 1; 1287 cd->dlabel.d_flags = D_REMOVABLE; 1288 cd->dlabel.d_npartitions= 1; 1289 cd->dlabel.d_partitions[0].p_offset = 0; 1290 cd->dlabel.d_partitions[0].p_size = cd->disksize; 1291 cd->dlabel.d_partitions[0].p_fstype = 9; 1292 cd->dlabel.d_magic = DISKMAGIC; 1293 cd->dlabel.d_magic2 = DISKMAGIC; 1294 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 1295 1296 cd->flags |= SCDTOC; 1297 1298 return 0; 1299} 1300 1301static void 1302init_drive(unsigned unit) 1303{ 1304 int rc; 1305 1306 rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2, 1307 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0)); 1308 if (rc != 0) 1309 printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc); 1310} 1311 1312/* Returns 0 or errno */ 1313static int 1314get_result(u_int unit, int result_len, u_char *result) 1315{ 1316 unsigned int port = scd_data[unit].iobase; 1317 unsigned int res_reg = port + IREG_RESULT; 1318 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1319 1320 XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len)); 1321 1322 while (result_len-- > 0) { 1323 if (loop_index++ >= 10) { 1324 loop_index = 1; 1325 if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0)) 1326 return EIO; 1327 write_control(port, CBIT_RESULT_READY_CLEAR); 1328 } 1329 if (result) 1330 *result++ = inb(res_reg); 1331 else 1332 (void)inb(res_reg); 1333 } 1334 return 0; 1335} 1336 1337/* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1338static int 1339send_cmd(u_int unit, u_char cmd, u_int nargs, ...) 1340{ 1341 va_list ap; 1342 u_int port = scd_data[unit].iobase; 1343 u_int reg; 1344 u_char c; 1345 int rc; 1346 int i; 1347 1348 if (waitfor_status_bits(unit, 0, SBIT_BUSY)) { 1349 printf("scd%d: drive busy\n", unit); 1350 return -0x100; 1351 } 1352 1353 XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs)); 1354 1355 write_control(port, CBIT_RESULT_READY_CLEAR); 1356 write_control(port, CBIT_RPARAM_CLEAR); 1357 1358 for (i = 0; i < 100; i++) 1359 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 1360 break; 1361 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 1362 XDEBUG(1, ("\nscd%d: wparam timeout\n", unit)); 1363 return -EIO; 1364 } 1365 1366 va_start(ap, nargs); 1367 reg = port + OREG_WPARAMS; 1368 for (i = 0; i < nargs; i++) { 1369 c = (u_char)va_arg(ap, int); 1370 outb(reg, c); 1371 XDEBUG(1, (",{0x%x}", c)); 1372 } 1373 va_end(ap); 1374 XDEBUG(1, ("\n")); 1375 1376 outb(port+OREG_COMMAND, cmd); 1377 1378 rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY); 1379 if (rc) 1380 return -0x100; 1381 1382 reg = port + IREG_RESULT; 1383 write_control(port, CBIT_RESULT_READY_CLEAR); 1384 switch ((rc = inb(reg)) & 0xf0) { 1385 case 0x20: 1386 rc = inb(reg); 1387 /* FALL TROUGH */ 1388 case 0x50: 1389 XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc)); 1390 return -rc; 1391 case 0x00: 1392 default: 1393 rc = inb(reg); 1394 XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc)); 1395 return rc; 1396 } 1397} 1398 1399static void 1400print_error(int unit, int errcode) 1401{ 1402 switch (errcode) { 1403 case -ERR_CD_NOT_LOADED: 1404 printf("scd%d: door is open\n", unit); 1405 break; 1406 case -ERR_NO_CD_INSIDE: 1407 printf("scd%d: no cd inside\n", unit); 1408 break; 1409 default: 1410 if (errcode == -0x100 || errcode > 0) 1411 printf("scd%d: device timeout\n", unit); 1412 else 1413 printf("scd%d: unexpected error 0x%x\n", unit, -errcode); 1414 break; 1415 } 1416} 1417 1418/* Returns 0 or errno value */ 1419static int 1420waitfor_status_bits(int unit, int bits_set, int bits_clear) 1421{ 1422 u_int port = scd_data[unit].iobase; 1423 u_int flags = scd_data[unit].flags; 1424 u_int reg = port + IREG_STATUS; 1425 u_int max_loop; 1426 u_char c = 0; 1427 1428 if (flags & SCDPROBING) { 1429 max_loop = 0; 1430 while (max_loop++ < 1000) { 1431 c = inb(reg); 1432 if (c == 0xff) 1433 return EIO; 1434 if (c & SBIT_ATTENTION) { 1435 process_attention(unit); 1436 continue; 1437 } 1438 if ((c & bits_set) == bits_set && 1439 (c & bits_clear) == 0) 1440 { 1441 break; 1442 } 1443 DELAY(10000); 1444 } 1445 } else { 1446 max_loop = 100; 1447 while (max_loop-- > 0) { 1448 c = inb(reg); 1449 if (c & SBIT_ATTENTION) { 1450 process_attention(unit); 1451 continue; 1452 } 1453 if ((c & bits_set) == bits_set && 1454 (c & bits_clear) == 0) 1455 { 1456 break; 1457 } 1458 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1459 } 1460 } 1461 if ((c & bits_set) == bits_set && 1462 (c & bits_clear) == 0) 1463 { 1464 return 0; 1465 } 1466#ifdef SCD_DEBUG 1467 if (scd_debuglevel > 0) 1468 printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear); 1469 else 1470#endif 1471 printf("scd%d: timeout.\n", unit); 1472 return EIO; 1473} 1474 1475/* these two routines for xcdplayer - "borrowed" from mcd.c */ 1476static int 1477scd_toc_header (int unit, struct ioc_toc_header* th) 1478{ 1479 struct scd_data *cd = scd_data + unit; 1480 int rc; 1481 1482 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1483 print_error(unit, rc); 1484 return EIO; 1485 } 1486 1487 th->starting_track = cd->first_track; 1488 th->ending_track = cd->last_track; 1489 th->len = 0; /* not used */ 1490 1491 return 0; 1492} 1493 1494static int 1495scd_toc_entrys (int unit, struct ioc_read_toc_entry *te) 1496{ 1497 struct scd_data *cd = scd_data + unit; 1498 struct cd_toc_entry toc_entry; 1499 int rc, i, len = te->data_len; 1500 1501 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1502 print_error(unit, rc); 1503 return EIO; 1504 } 1505 1506 /* find the toc to copy*/ 1507 i = te->starting_track; 1508 if (i == SCD_LASTPLUS1) 1509 i = cd->last_track + 1; 1510 1511 /* verify starting track */ 1512 if (i < cd->first_track || i > cd->last_track+1) 1513 return EINVAL; 1514 1515 /* valid length ? */ 1516 if (len < sizeof(struct cd_toc_entry) 1517 || (len % sizeof(struct cd_toc_entry)) != 0) 1518 return EINVAL; 1519 1520 /* copy the toc data */ 1521 toc_entry.control = cd->toc[i].ctl; 1522 toc_entry.addr_type = te->address_format; 1523 toc_entry.track = i; 1524 if (te->address_format == CD_MSF_FORMAT) { 1525 toc_entry.addr.msf.unused = 0; 1526 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); 1527 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); 1528 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); 1529 } 1530 1531 /* copy the data back */ 1532 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1533 return EFAULT; 1534 1535 return 0; 1536} 1537 1538 1539static int 1540scd_toc_entry (int unit, struct ioc_read_toc_single_entry *te) 1541{ 1542 struct scd_data *cd = scd_data + unit; 1543 struct cd_toc_entry toc_entry; 1544 int rc, i; 1545 1546 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1547 print_error(unit, rc); 1548 return EIO; 1549 } 1550 1551 /* find the toc to copy*/ 1552 i = te->track; 1553 if (i == SCD_LASTPLUS1) 1554 i = cd->last_track + 1; 1555 1556 /* verify starting track */ 1557 if (i < cd->first_track || i > cd->last_track+1) 1558 return EINVAL; 1559 1560 /* copy the toc data */ 1561 toc_entry.control = cd->toc[i].ctl; 1562 toc_entry.addr_type = te->address_format; 1563 toc_entry.track = i; 1564 if (te->address_format == CD_MSF_FORMAT) { 1565 toc_entry.addr.msf.unused = 0; 1566 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); 1567 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); 1568 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); 1569 } 1570 1571 /* copy the data back */ 1572 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry)); 1573 1574 return 0; 1575} 1576 1577 1578static int scd_devsw_installed; 1579 1580static void scd_drvinit(void *unused) 1581{ 1582 1583 if( ! scd_devsw_installed ) { 1584 cdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &scd_cdevsw); 1585 scd_devsw_installed = 1; 1586 } 1587} 1588 1589SYSINIT(scddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,scd_drvinit,NULL) 1590 1591 1592#endif /* NSCD > 0 */ 1593