scd.c revision 7332
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 1.7 1995/02/09 11:30:07 jkh 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 <sys/types.h> 53#include <sys/param.h> 54#include <sys/systm.h> 55#include <sys/conf.h> 56#include <sys/file.h> 57#include <sys/buf.h> 58#include <sys/stat.h> 59#include <sys/uio.h> 60#include <sys/ioctl.h> 61#include <sys/cdio.h> 62#include <sys/errno.h> 63#include <sys/dkbad.h> 64#include <sys/disklabel.h> 65#include <sys/devconf.h> 66#include <machine/stdarg.h> 67 68#include <i386/isa/isa.h> 69#include <i386/isa/isa_device.h> 70#include <gnu/i386/scdreg.h> 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 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 118struct 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 char adr :4; 129 unsigned char 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 head; /* head of buf queue */ 138 struct scd_mbx mbx; 139} scd_data[NSCD]; 140 141/* prototypes */ 142int scdopen(dev_t dev); 143int scdclose(dev_t dev); 144void scdstrategy(struct buf *bp); 145int scdioctl(dev_t dev, int cmd, caddr_t addr, int flags); 146int scdsize(dev_t dev); 147 148static int bcd2bin(bcd_t b); 149static bcd_t bin2bcd(int b); 150static void hsg2msf(int hsg, bcd_t *msf); 151static int msf2hsg(bcd_t *msf); 152 153static void process_attention(unsigned unit); 154static inline void write_control(unsigned port, unsigned data); 155static int waitfor_status_bits(int unit, int bits_set, int bits_clear); 156static int waitfor_attention(int unit); 157static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...); 158static void init_drive(unsigned unit); 159static int spin_up(unsigned unit); 160static int read_toc(dev_t dev); 161static int get_result(u_int unit, int result_len, u_char *result); 162static void print_error(int unit, int errcode); 163 164static void scd_start(int unit); 165static void scd_doread(int state, struct scd_mbx *mbxin); 166 167static int scd_eject(int unit); 168static int scd_stop(int unit); 169static int scd_pause(int unit); 170static int scd_resume(int unit); 171static int scd_playtracks(int unit, struct ioc_play_track *pt); 172static int scd_playmsf(int unit, struct ioc_play_msf *msf); 173static int scd_play(int unit, struct ioc_play_msf *msf); 174static int scd_subchan(int unit, struct ioc_read_subchannel *sc); 175static int read_subcode(int unit, struct sony_subchannel_position_data *sc); 176 177/* for xcdplayer */ 178static int scd_toc_header(int unit, struct ioc_toc_header *th); 179static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 180#define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 181 182extern int hz; 183 184int scd_probe(struct isa_device *dev); 185int scd_attach(struct isa_device *dev); 186struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; 187 188static struct kern_devconf kdc_scd[NSCD] = { { 189 0, 0, 0, /* filled in by dev_attach */ 190 "scd", 0, { MDDT_ISA, 0, "bio" }, 191 isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, 192 &kdc_isa0, /* parent */ 193 0, /* parentdata */ 194 DC_IDLE, /* status */ 195 "Sony CD-ROM drive" /* properly filled later */ 196} }; 197 198static inline void 199scd_registerdev(struct isa_device *id) 200{ 201 if(id->id_unit) 202 kdc_scd[id->id_unit] = kdc_scd[0]; 203 kdc_scd[id->id_unit].kdc_unit = id->id_unit; 204 kdc_scd[id->id_unit].kdc_isa = id; 205 dev_attach(&kdc_scd[id->id_unit]); 206} 207 208int scd_attach(struct isa_device *dev) 209{ 210 struct scd_data *cd = scd_data + dev->id_unit; 211 int i; 212 213 cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ 214 215 scd_registerdev(dev); 216 /* name filled in probe */ 217 kdc_scd[dev->id_unit].kdc_description = scd_data[dev->id_unit].name; 218 printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name); 219 220 init_drive(dev->id_unit); 221 222 cd->flags = SCDINIT; 223 cd->audio_status = CD_AS_AUDIO_INVALID; 224 225 return 1; 226} 227 228int 229scdopen(dev_t dev) 230{ 231 int unit,part,phys; 232 int rc; 233 struct scd_data *cd; 234 235 unit = scd_unit(dev); 236 if (unit >= NSCD) 237 return ENXIO; 238 239 cd = scd_data + unit; 240 part = scd_part(dev); 241 phys = scd_phys(dev); 242 243 /* not initialized*/ 244 if (!(cd->flags & SCDINIT)) 245 return ENXIO; 246 247 /* invalidated in the meantime? mark all open part's invalid */ 248 if (cd->openflag) 249 return ENXIO; 250 251 XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS))); 252 253 if ((rc = spin_up(unit)) != 0) { 254 print_error(unit, rc); 255 return EIO; 256 } 257 if (!(cd->flags & SCDTOC)) { 258 int loop_count = 3; 259 260 while (loop_count-- > 0 && (rc = read_toc(dev)) != 0) { 261 if (rc == ERR_NOT_SPINNING) { 262 rc = spin_up(unit); 263 if (rc) { 264 print_error(unit, rc);\ 265 return EIO; 266 } 267 continue; 268 } 269 printf("scd%d: TOC read error 0x%x\n", unit, rc); 270 return EIO; 271 } 272 } 273 274 cd->openflag = 1; 275 cd->flags |= SCDVALID; 276 kdc_scd[unit].kdc_state = DC_BUSY; 277 278 return 0; 279} 280 281int 282scdclose(dev_t dev) 283{ 284 int unit,part,phys; 285 struct scd_data *cd; 286 int rlen; 287 char rdata[10]; 288 289 unit = scd_unit(dev); 290 if (unit >= NSCD) 291 return ENXIO; 292 293 cd = scd_data + unit; 294 part = scd_part(dev); 295 phys = scd_phys(dev); 296 297 if (!(cd->flags & SCDINIT) || !cd->openflag) 298 return ENXIO; 299 300 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { 301 (void)send_cmd(unit, CMD_SPIN_DOWN, 0); 302 cd->flags &= ~SCDSPINNING; 303 } 304 305 kdc_scd[unit].kdc_state = DC_IDLE; 306 307 /* close channel */ 308 cd->openflag = 0; 309 310 return 0; 311} 312 313void 314scdstrategy(struct buf *bp) 315{ 316 struct scd_data *cd; 317 struct buf *qp; 318 int s; 319 int unit = scd_unit(bp->b_dev); 320 321 cd = scd_data + unit; 322 323 XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n", unit, bp->b_blkno, bp->b_bcount)); 324 325 if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) { 326 printf("scd%d: strategy failure: blkno = %d, bcount = %d\n", 327 unit, bp->b_blkno, bp->b_bcount); 328 bp->b_error = EINVAL; 329 bp->b_flags |= B_ERROR; 330 goto bad; 331 } 332 333 /* if device invalidated (e.g. media change, door open), error */ 334 if (!(cd->flags & SCDVALID)) { 335 printf("scd%d: media changed\n", unit); 336 bp->b_error = EIO; 337 goto bad; 338 } 339 340 /* read only */ 341 if (!(bp->b_flags & B_READ)) { 342 bp->b_error = EROFS; 343 goto bad; 344 } 345 346 /* no data to read */ 347 if (bp->b_bcount == 0) 348 goto done; 349 350 if (!(cd->flags & SCDTOC)) { 351 bp->b_error = EIO; 352 goto bad; 353 } 354 /* adjust transfer if necessary */ 355 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) 356 goto done; 357 358 bp->b_pblkno = bp->b_blkno; 359 bp->b_resid = 0; 360 361 /* queue it */ 362 qp = &cd->head; 363 s = splbio(); 364 disksort(qp,bp); 365 splx(s); 366 367 /* now check whether we can perform processing */ 368 scd_start(unit); 369 return; 370 371bad: 372 bp->b_flags |= B_ERROR; 373done: 374 bp->b_resid = bp->b_bcount; 375 biodone(bp); 376 return; 377} 378 379static void 380scd_start(int unit) 381{ 382 struct scd_data *cd = scd_data + unit; 383 struct buf *bp, *qp = &cd->head; 384 struct partition *p; 385 int part; 386 register s = splbio(); 387 388 if (cd->flags & SCDMBXBSY) { 389 splx(s); 390 return; 391 } 392 393 if ((bp = qp->b_actf) != 0) { 394 /* block found to process, dequeue */ 395 qp->b_actf = bp->b_actf; 396 cd->flags |= SCDMBXBSY; 397 splx(s); 398 } else { 399 /* nothing to do */ 400 splx(s); 401 return; 402 } 403 404 p = cd->dlabel.d_partitions + scd_part(bp->b_dev); 405 406 cd->mbx.unit = unit; 407 cd->mbx.port = cd->iobase; 408 cd->mbx.retry = 3; 409 cd->mbx.bp = bp; 410 cd->mbx.p_offset = p->p_offset; 411 splx(s); 412 413 scd_doread(SCD_S_BEGIN,&(cd->mbx)); 414 return; 415} 416 417int 418scdioctl(dev_t dev, int cmd, caddr_t addr, int flags) 419{ 420 struct scd_data *cd; 421 int unit,part; 422 423 unit = scd_unit(dev); 424 part = scd_part(dev); 425 cd = scd_data + unit; 426 427 XDEBUG(1, ("scd%d: ioctl: cmd=0x%lx\n", unit, cmd)); 428 429 if (!(cd->flags & SCDVALID)) 430 return EIO; 431 432 switch (cmd) { 433 case DIOCSBAD: 434 return EINVAL; 435 case DIOCGDINFO: 436 *(struct disklabel *)addr = cd->dlabel; 437 return 0; 438 case DIOCGPART: 439 ((struct partinfo *)addr)->disklab = &cd->dlabel; 440 ((struct partinfo *)addr)->part = 441 &cd->dlabel.d_partitions[0]; 442 return 0; 443 case CDIOCPLAYTRACKS: 444 return scd_playtracks(unit, (struct ioc_play_track *) addr); 445 case CDIOCPLAYBLOCKS: 446 return EINVAL; 447 case CDIOCPLAYMSF: 448 return scd_playmsf(unit, (struct ioc_play_msf *) addr); 449 case CDIOCREADSUBCHANNEL: 450 return scd_subchan(unit, (struct ioc_read_subchannel *) addr); 451 case CDIOREADTOCHEADER: 452 return scd_toc_header (unit, (struct ioc_toc_header *) addr); 453 case CDIOREADTOCENTRYS: 454 return scd_toc_entrys (unit, (struct ioc_read_toc_entry*) addr); 455 case CDIOCSETPATCH: 456 case CDIOCGETVOL: 457 case CDIOCSETVOL: 458 case CDIOCSETMONO: 459 case CDIOCSETSTERIO: 460 case CDIOCSETMUTE: 461 case CDIOCSETLEFT: 462 case CDIOCSETRIGHT: 463 return EINVAL; 464 case CDIOCRESUME: 465 return scd_resume(unit); 466 case CDIOCPAUSE: 467 return scd_pause(unit); 468 case CDIOCSTART: 469 return EINVAL; 470 case CDIOCSTOP: 471 return scd_stop(unit); 472 case CDIOCEJECT: 473 return scd_eject(unit); 474 case CDIOCALLOW: 475 return 0; 476 case CDIOCSETDEBUG: 477#ifdef SCD_DEBUG 478 scd_debuglevel++; 479#endif 480 return 0; 481 case CDIOCCLRDEBUG: 482#ifdef SCD_DEBUG 483 scd_debuglevel = 0; 484 485#endif 486 return 0; 487 default: 488 printf("scd%d: unsupported ioctl (cmd=0x%lx)\n", unit, cmd); 489 return ENOTTY; 490 } 491} 492 493int 494scdsize(dev_t dev) 495{ 496 return -1; 497} 498 499void 500scdintr() 501{ 502 return; 503} 504 505/*************************************************************** 506 * lower level of driver starts here 507 **************************************************************/ 508 509static int 510scd_playtracks(int unit, struct ioc_play_track *pt) 511{ 512 struct scd_data *cd = scd_data + unit; 513 struct ioc_play_msf msf; 514 int a = pt->start_track; 515 int z = pt->end_track; 516 int rc, i; 517 518 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 519 if (rc == -ERR_NOT_SPINNING) { 520 if (spin_up(unit) != 0) 521 return EIO; 522 rc = read_toc(unit); 523 } 524 if (rc != 0) { 525 print_error(unit, rc); 526 return EIO; 527 } 528 } 529 530 XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit, 531 a, pt->start_index, z, pt->end_index)); 532 533 if ( a < cd->first_track 534 || a > cd->last_track 535 || a > z 536 || z > cd->last_track) 537 return EINVAL; 538 539 bcopy(cd->toc[a].start_msf, &msf.start_m, 3); 540 hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m); 541 542 return scd_play(unit, &msf); 543} 544 545/* The start/end msf is expected to be in bin format */ 546static int 547scd_playmsf(int unit, struct ioc_play_msf *msfin) 548{ 549 struct ioc_play_msf msf; 550 551 msf.start_m = bin2bcd(msfin->start_m); 552 msf.start_s = bin2bcd(msfin->start_s); 553 msf.start_f = bin2bcd(msfin->start_f); 554 msf.end_m = bin2bcd(msfin->end_m); 555 msf.end_s = bin2bcd(msfin->end_s); 556 msf.end_f = bin2bcd(msfin->end_f); 557 558 return scd_play(unit, &msf); 559} 560 561/* The start/end msf is expected to be in bcd format */ 562static int 563scd_play(int unit, struct ioc_play_msf *msf) 564{ 565 struct scd_data *cd = scd_data + unit; 566 int i, rc; 567 568 XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit, 569 msf->start_m, msf->start_s, msf->start_f, 570 msf->end_m, msf->end_s, msf->end_f)); 571 572 for (i = 0; i < 2; i++) { 573 rc = send_cmd(unit, CMD_PLAY_AUDIO, 7, 574 0x03, 575 msf->start_m, msf->start_s, msf->start_f, 576 msf->end_m, msf->end_s, msf->end_f); 577 if (rc == -ERR_NOT_SPINNING) { 578 cd->flags &= ~SCDSPINNING; 579 if (spin_up(unit) != 0) 580 return EIO; 581 } else if (rc < 0) { 582 print_error(unit, rc); 583 return EIO; 584 } else { 585 break; 586 } 587 } 588 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 589 bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf)); 590 return 0; 591} 592 593static int 594scd_stop(int unit) 595{ 596 struct scd_data *cd = scd_data + unit; 597 598 (void)send_cmd(unit, CMD_STOP_AUDIO, 0); 599 cd->audio_status = CD_AS_PLAY_COMPLETED; 600 return 0; 601} 602 603static int 604scd_pause(int unit) 605{ 606 struct scd_data *cd = scd_data + unit; 607 struct sony_subchannel_position_data subpos; 608 609 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) 610 return EINVAL; 611 612 if (read_subcode(unit, &subpos) != 0) 613 return EIO; 614 615 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0) 616 return EIO; 617 618 cd->last_play.start_m = subpos.abs_msf[0]; 619 cd->last_play.start_s = subpos.abs_msf[1]; 620 cd->last_play.start_f = subpos.abs_msf[2]; 621 cd->audio_status = CD_AS_PLAY_PAUSED; 622 623 XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit, 624 cd->last_play.start_m, 625 cd->last_play.start_s, 626 cd->last_play.start_f)); 627 628 return 0; 629} 630 631static int 632scd_resume(int unit) 633{ 634 if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED) 635 return EINVAL; 636 return scd_play(unit, &scd_data[unit].last_play); 637} 638 639static int 640scd_eject(int unit) 641{ 642 struct scd_data *cd = scd_data + unit; 643 int port = cd->iobase; 644 645 cd->audio_status = CD_AS_AUDIO_INVALID; 646 cd->flags &= ~(SCDSPINNING|SCDTOC); 647 648 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 || 649 send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 || 650 send_cmd(unit, CMD_EJECT, 0) != 0) 651 { 652 return EIO; 653 } 654 return 0; 655} 656 657static int 658scd_subchan(int unit, struct ioc_read_subchannel *sc) 659{ 660 struct scd_data *cd = scd_data + unit; 661 struct sony_subchannel_position_data q; 662 struct cd_sub_channel_info data; 663 664 XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit, 665 sc->address_format, 666 sc->data_format)); 667 668 if (sc->address_format != CD_MSF_FORMAT) 669 return EINVAL; 670 671 if (sc->data_format != CD_CURRENT_POSITION) 672 return EINVAL; 673 674 if (read_subcode(unit, &q) != 0) 675 return EIO; 676 677 data.header.audio_status = cd->audio_status; 678 data.what.position.data_format = CD_MSF_FORMAT; 679 data.what.position.track_number = bcd2bin(q.track_number); 680 data.what.position.reladdr.msf.unused = 0; 681 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 682 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 683 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 684 data.what.position.absaddr.msf.unused = 0; 685 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 686 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 687 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 688 689 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) 690 return EFAULT; 691 return 0; 692} 693 694int 695scd_probe(struct isa_device *dev) 696{ 697 struct sony_drive_configuration drive_config; 698 int unit = dev->id_unit; 699 int rc; 700 static char namebuf[8+16+8+3]; 701 char *s = namebuf; 702 int loop_count = 0; 703 704 scd_data[unit].flags = SCDPROBING; 705 scd_data[unit].iobase = dev->id_iobase; 706 707 bzero(&drive_config, sizeof(drive_config)); 708 709again: 710 /* Reset drive */ 711 write_control(dev->id_iobase, CBIT_RESET_DRIVE); 712 713 /* Calm down */ 714 DELAY(300000); 715 716 /* Only the ATTENTION bit may be set */ 717 if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) { 718 XDEBUG(1, ("scd: too many bits set. probe failed.\n")); 719 return 0; 720 } 721 rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0); 722 if (rc != sizeof(drive_config)) { 723 /* Sometimes if the drive is playing audio I get */ 724 /* the bad result 82. Fix by repeating the reset */ 725 if (rc > 0 && loop_count++ == 0) 726 goto again; 727 return 0; 728 } 729 if (get_result(unit, rc, (u_char *)&drive_config) != 0) 730 return 0; 731 732 bcopy(drive_config.vendor, namebuf, 8); 733 s = namebuf+8; 734 while (*(s-1) == ' ') /* Strip trailing spaces */ 735 s--; 736 *s++ = ' '; 737 bcopy(drive_config.product, s, 16); 738 s += 16; 739 while (*(s-1) == ' ') 740 s--; 741 *s++ = ' '; 742 bcopy(drive_config.revision, s, 8); 743 s += 8; 744 while (*(s-1) == ' ') 745 s--; 746 *s = 0; 747 748 scd_data[unit].name = namebuf; 749 750 if (drive_config.config & 0x10) 751 scd_data[unit].double_speed = 1; 752 else 753 scd_data[unit].double_speed = 0; 754 755 return 4; 756} 757 758static int 759read_subcode(int unit, struct sony_subchannel_position_data *sc) 760{ 761 int rc; 762 763 rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0); 764 if (rc < 0 || rc < sizeof(*sc)) 765 return EIO; 766 if (get_result(unit, rc, (u_char *)sc) != 0) 767 return EIO; 768 return 0; 769} 770 771/* State machine copied from mcd.c */ 772 773/* This (and the code in mcd.c) will not work with more than one drive */ 774/* because there is only one mbxsave below. Should fix that some day. */ 775/* (mbxsave & state should probably be included in the scd_data struct and */ 776/* the unit number used as first argument to scd_doread().) /Micke */ 777 778/* state machine to process read requests 779 * initialize with SCD_S_BEGIN: reset state machine 780 * SCD_S_WAITSTAT: wait for ready (!busy) 781 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 782 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 783 * SCD_S_WAITREAD: wait for data ready, read data 784 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 785 */ 786 787static struct scd_mbx *mbxsave; 788 789static void 790scd_doread(int state, struct scd_mbx *mbxin) 791{ 792 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin; 793 int unit = mbx->unit; 794 int port = mbx->port; 795 struct buf *bp = mbx->bp; 796 struct scd_data *cd = scd_data + unit; 797 int reg,i,k,c; 798 int blknum; 799 caddr_t addr; 800 char rdata[10]; 801 static char sdata[3]; /* Must be preserved between calls to this function */ 802 803loop: 804 switch (state) { 805 case SCD_S_BEGIN: 806 mbx = mbxsave = mbxin; 807 808 case SCD_S_BEGIN1: 809 /* get status */ 810 mbx->count = RDELAY_WAIT; 811 812 process_attention(unit); 813 goto trystat; 814 815 case SCD_S_WAITSTAT: 816 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSTAT); 817 if (mbx->count-- <= 0) { 818 printf("scd%d: timeout. drive busy.\n",unit); 819 goto harderr; 820 } 821 822trystat: 823 if (IS_BUSY(port)) { 824 timeout((timeout_func_t)scd_doread, 825 (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */ 826 return; 827 } 828 829 process_attention(unit); 830 831 /* reject, if audio active */ 832 if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) { 833 printf("scd%d: audio is active\n",unit); 834 goto harderr; 835 } 836 837 mbx->sz = cd->blksize; 838 839firstblock: 840 /* for first block */ 841 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 842 mbx->skip = 0; 843 844nextblock: 845 if (!(cd->flags & SCDVALID)) 846 goto changed; 847 848 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 849 + mbx->p_offset + mbx->skip/mbx->sz; 850 851 XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum)); 852 853 /* build parameter block */ 854 hsg2msf(blknum, sdata); 855 856 write_control(port, CBIT_RESULT_READY_CLEAR); 857 write_control(port, CBIT_RPARAM_CLEAR); 858 write_control(port, CBIT_DATA_READY_CLEAR); 859 860 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 861 goto writeparam; 862 863 mbx->count = 100; 864 timeout((timeout_func_t)scd_doread, 865 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 866 return; 867 868 case SCD_S_WAITSPIN: 869 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSPIN); 870 if (mbx->count-- <= 0) { 871 printf("scd%d: timeout waiting for drive to spin up.\n", unit); 872 goto harderr; 873 } 874 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 875 timeout((timeout_func_t)scd_doread, 876 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 877 return; 878 } 879 write_control(port, CBIT_RESULT_READY_CLEAR); 880 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 881 case 0x20: 882 i = inb(port+IREG_RESULT); 883 print_error(unit, i); 884 goto harderr; 885 case 0x00: 886 (void)inb(port+IREG_RESULT); 887 cd->flags |= SCDSPINNING; 888 break; 889 } 890 XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit)); 891 892 state = SCD_S_BEGIN1; 893 goto loop; 894 895 case SCD_S_WAITFIFO: 896 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITFIFO); 897 if (mbx->count-- <= 0) { 898 printf("scd%d: timeout. write param not ready.\n",unit); 899 goto harderr; 900 } 901 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 902 timeout((timeout_func_t)scd_doread, 903 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 904 return; 905 } 906 XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100)); 907 908writeparam: 909 /* The reason this test isn't done 'till now is to make sure */ 910 /* that it is ok to send the SPIN_UP cmd below. */ 911 if (!(cd->flags & SCDSPINNING)) { 912 XDEBUG(1, ("scd%d: spinning up drive ...\n", unit)); 913 outb(port+OREG_COMMAND, CMD_SPIN_UP); 914 mbx->count = 300; 915 timeout((timeout_func_t)scd_doread, 916 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 917 return; 918 } 919 920 reg = port + OREG_WPARAMS; 921 /* send the read command */ 922 disable_intr(); 923 outb(reg, sdata[0]); 924 outb(reg, sdata[1]); 925 outb(reg, sdata[2]); 926 outb(reg, 0); 927 outb(reg, 0); 928 outb(reg, 1); 929 outb(port+OREG_COMMAND, CMD_READ); 930 enable_intr(); 931 932 mbx->count = RDELAY_WAITREAD; 933 for (i = 0; i < 50; i++) { 934 if (STATUS_BIT(port, SBIT_DATA_READY)) 935 goto got_data; 936 DELAY(100); 937 } 938 939 timeout((timeout_func_t)scd_doread, 940 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 941 return; 942 943 case SCD_S_WAITREAD: 944 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITREAD); 945 if (mbx->count-- <= 0) { 946 if (STATUS_BIT(port, SBIT_RESULT_READY)) 947 goto got_param; 948 printf("scd%d: timeout while reading data\n",unit); 949 goto readerr; 950 } 951 if (!STATUS_BIT(port, SBIT_DATA_READY)) { 952 process_attention(unit); 953 if (!(cd->flags & SCDVALID)) 954 goto changed; 955 timeout((timeout_func_t)scd_doread, 956 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 957 return; 958 } 959 XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD)); 960 961got_data: 962 /* data is ready */ 963 addr = bp->b_un.b_addr + mbx->skip; 964 write_control(port, CBIT_DATA_READY_CLEAR); 965 insb(port+IREG_DATA, addr, mbx->sz); 966 967 mbx->count = 100; 968 for (i = 0; i < 20; i++) { 969 if (STATUS_BIT(port, SBIT_RESULT_READY)) 970 goto waitfor_param; 971 DELAY(100); 972 } 973 goto waitfor_param; 974 975 case SCD_S_WAITPARAM: 976 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITPARAM); 977 if (mbx->count-- <= 0) { 978 printf("scd%d: timeout waiting for params\n",unit); 979 goto readerr; 980 } 981 982waitfor_param: 983 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 984 timeout((timeout_func_t)scd_doread, 985 (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */ 986 return; 987 } 988#if SCD_DEBUG 989 if (mbx->count < 100 && scd_debuglevel > 0) 990 printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100); 991#endif 992 993got_param: 994 write_control(port, CBIT_RESULT_READY_CLEAR); 995 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 996 case 0x50: 997 switch (i) { 998 case ERR_FATAL_READ_ERROR1: 999 case ERR_FATAL_READ_ERROR2: 1000 printf("scd%d: unrecoverable read error 0x%x\n", unit, i); 1001 goto harderr; 1002 } 1003 break; 1004 case 0x20: 1005 i = inb(port+IREG_RESULT); 1006 switch (i) { 1007 case ERR_NOT_SPINNING: 1008 XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit)); 1009 if (mbx->retry-- > 0) { 1010 state = SCD_S_BEGIN1; 1011 cd->flags &= ~SCDSPINNING; 1012 goto loop; 1013 } 1014 goto harderr; 1015 default: 1016 print_error(unit, i); 1017 goto readerr; 1018 } 1019 case 0x00: 1020 i = inb(port+IREG_RESULT); 1021 break; 1022 } 1023 1024 if (--mbx->nblk > 0) { 1025 mbx->skip += mbx->sz; 1026 goto nextblock; 1027 } 1028 1029 /* return buffer */ 1030 bp->b_resid = 0; 1031 biodone(bp); 1032 1033 cd->flags &= ~SCDMBXBSY; 1034 scd_start(mbx->unit); 1035 return; 1036 } 1037 1038readerr: 1039 if (mbx->retry-- > 0) { 1040 printf("scd%d: retrying ...\n",unit); 1041 state = SCD_S_BEGIN1; 1042 goto loop; 1043 } 1044harderr: 1045 /* invalidate the buffer */ 1046 bp->b_error = EIO; 1047 bp->b_flags |= B_ERROR; 1048 bp->b_resid = bp->b_bcount; 1049 biodone(bp); 1050 1051 cd->flags &= ~SCDMBXBSY; 1052 scd_start(mbx->unit); 1053 return; 1054 1055changed: 1056 printf("scd%d: media changed\n", unit); 1057 goto harderr; 1058} 1059 1060static int 1061bcd2bin(bcd_t b) 1062{ 1063 return (b >> 4) * 10 + (b & 15); 1064} 1065 1066static bcd_t 1067bin2bcd(int b) 1068{ 1069 return ((b / 10) << 4) | (b % 10); 1070} 1071 1072static void 1073hsg2msf(int hsg, bcd_t *msf) 1074{ 1075 hsg += 150; 1076 M_msf(msf) = bin2bcd(hsg / 4500); 1077 hsg %= 4500; 1078 S_msf(msf) = bin2bcd(hsg / 75); 1079 F_msf(msf) = bin2bcd(hsg % 75); 1080} 1081 1082static int 1083msf2hsg(bcd_t *msf) 1084{ 1085 return (bcd2bin(M_msf(msf)) * 60 + 1086 bcd2bin(S_msf(msf))) * 75 + 1087 bcd2bin(F_msf(msf)) - 150; 1088} 1089 1090static void 1091process_attention(unsigned unit) 1092{ 1093 unsigned port = scd_data[unit].iobase; 1094 unsigned char code; 1095 int count = 0; 1096 int i; 1097 1098 while (IS_ATTENTION(port) && count++ < 30) { 1099 write_control(port, CBIT_ATTENTION_CLEAR); 1100 code = inb(port+IREG_RESULT); 1101 1102#if SCD_DEBUG 1103 if (scd_debuglevel > 0) { 1104 if (count == 1) 1105 printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code); 1106 else 1107 printf(",0x%x", code); 1108 } 1109#endif 1110 1111 switch (code) { 1112 case ATTEN_SPIN_DOWN: 1113 scd_data[unit].flags &= ~SCDSPINNING; 1114 break; 1115 1116 case ATTEN_SPIN_UP_DONE: 1117 scd_data[unit].flags |= SCDSPINNING; 1118 break; 1119 1120 case ATTEN_AUDIO_DONE: 1121 scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED; 1122 break; 1123 1124 case ATTEN_DRIVE_LOADED: 1125 scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1126 scd_data[unit].audio_status = CD_AS_AUDIO_INVALID; 1127 break; 1128 1129 case ATTEN_EJECT_PUSHED: 1130 scd_data[unit].flags &= ~SCDVALID; 1131 break; 1132 } 1133 DELAY(100); 1134 } 1135#if SCD_DEBUG 1136 if (scd_debuglevel > 0 && count > 0) 1137 printf("\n"); 1138#endif 1139} 1140 1141/* Returns 0 OR sony error code */ 1142static int 1143spin_up(unsigned unit) 1144{ 1145 unsigned char res_reg[12]; 1146 unsigned int res_size; 1147 int rc; 1148 int loop_count = 0; 1149 1150again: 1151 rc = send_cmd(unit, CMD_SPIN_UP, NULL, 0, res_reg, &res_size); 1152 if (rc != 0) { 1153 XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc)); 1154 return rc; 1155 } 1156 1157 if (!(scd_data[unit].flags & SCDTOC)) { 1158 rc = send_cmd(unit, CMD_READ_TOC, 0); 1159 if (rc == ERR_NOT_SPINNING) { 1160 if (loop_count++ < 3) 1161 goto again; 1162 return rc; 1163 } 1164 if (rc != 0) 1165 return rc; 1166 } 1167 1168 scd_data[unit].flags |= SCDSPINNING; 1169 1170 return 0; 1171} 1172 1173static struct sony_tracklist * 1174get_tl(struct sony_toc *toc, int size) 1175{ 1176 struct sony_tracklist *tl = &toc->tracks[0]; 1177 1178 if (tl->track != 0xb0) 1179 return tl; 1180 (char *)tl += 9; 1181 if (tl->track != 0xb1) 1182 return tl; 1183 (char *)tl += 9; 1184 if (tl->track != 0xb2) 1185 return tl; 1186 (char *)tl += 9; 1187 if (tl->track != 0xb3) 1188 return tl; 1189 (char *)tl += 9; 1190 if (tl->track != 0xb4) 1191 return tl; 1192 (char *)tl += 9; 1193 if (tl->track != 0xc0) 1194 return tl; 1195 (char *)tl += 9; 1196 return tl; 1197} 1198 1199static int 1200read_toc(dev_t dev) 1201{ 1202 unsigned unit; 1203 struct scd_data *cd; 1204 unsigned part = 0; /* For now ... */ 1205 struct sony_toc toc; 1206 struct sony_tracklist *tl; 1207 int rc, i, j; 1208 u_long first, last; 1209 1210 unit = scd_unit(dev); 1211 cd = scd_data + unit; 1212 1213 rc = send_cmd(unit, CMD_GET_TOC, 1, part+1); 1214 if (rc < 0) 1215 return rc; 1216 if (rc > sizeof(toc)) { 1217 printf("scd%d: program error: toc too large (%d)\n", unit, rc); 1218 return EIO; 1219 } 1220 if (get_result(unit, rc, (u_char *)&toc) != 0) 1221 return EIO; 1222 1223 XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc))); 1224 1225 tl = get_tl(&toc, rc); 1226 first = msf2hsg(tl->start_msf); 1227 last = msf2hsg(toc.lead_out_start_msf); 1228 cd->blksize = SCDBLKSIZE; 1229 cd->disksize = last*cd->blksize/DEV_BSIZE; 1230 1231 XDEBUG(1, ("scd%d: firstsector = %d, lastsector = %d", unit, 1232 first, last)); 1233 1234 cd->first_track = bcd2bin(toc.first_track); 1235 cd->last_track = bcd2bin(toc.last_track); 1236 if (cd->last_track > (MAX_TRACKS-2)) 1237 cd->last_track = MAX_TRACKS-2; 1238 for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) { 1239 cd->toc[i].adr = tl[j].adr; 1240 cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1241 bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3); 1242#ifdef SCD_DEBUG 1243 if (scd_debuglevel > 0) { 1244 if ((j % 3) == 0) 1245 printf("\nscd%d: tracks ", unit); 1246 printf("[%03d: %2d %2d %2d] ", i, 1247 bcd2bin(cd->toc[i].start_msf[0]), 1248 bcd2bin(cd->toc[i].start_msf[1]), 1249 bcd2bin(cd->toc[i].start_msf[2])); 1250 } 1251#endif 1252 } 1253 bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3); 1254#ifdef SCD_DEBUG 1255 if (scd_debuglevel > 0) { 1256 i = cd->last_track+1; 1257 printf("[END: %2d %2d %2d]\n", 1258 bcd2bin(cd->toc[i].start_msf[0]), 1259 bcd2bin(cd->toc[i].start_msf[1]), 1260 bcd2bin(cd->toc[i].start_msf[2])); 1261 } 1262#endif 1263 1264 bzero(&cd->dlabel,sizeof(struct disklabel)); 1265 /* filled with spaces first */ 1266 strncpy(cd->dlabel.d_typename," ", 1267 sizeof(cd->dlabel.d_typename)); 1268 strncpy(cd->dlabel.d_typename, cd->name, 1269 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 1270 strncpy(cd->dlabel.d_packname,"unknown ", 1271 sizeof(cd->dlabel.d_packname)); 1272 cd->dlabel.d_secsize = cd->blksize; 1273 cd->dlabel.d_nsectors = 100; 1274 cd->dlabel.d_ntracks = 1; 1275 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 1276 cd->dlabel.d_secpercyl = 100; 1277 cd->dlabel.d_secperunit = cd->disksize; 1278 cd->dlabel.d_rpm = 300; 1279 cd->dlabel.d_interleave = 1; 1280 cd->dlabel.d_flags = D_REMOVABLE; 1281 cd->dlabel.d_npartitions= 1; 1282 cd->dlabel.d_partitions[0].p_offset = 0; 1283 cd->dlabel.d_partitions[0].p_size = cd->disksize; 1284 cd->dlabel.d_partitions[0].p_fstype = 9; 1285 cd->dlabel.d_magic = DISKMAGIC; 1286 cd->dlabel.d_magic2 = DISKMAGIC; 1287 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 1288 1289 cd->flags |= SCDTOC; 1290 1291 return 0; 1292} 1293 1294static inline void 1295write_control(unsigned port, unsigned data) 1296{ 1297 outb(port + OREG_CONTROL, data); 1298} 1299 1300static void 1301init_drive(unsigned unit) 1302{ 1303 int rc; 1304 1305 rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2, 1306 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0)); 1307 if (rc != 0) 1308 printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc); 1309} 1310 1311/* Returns 0 or errno */ 1312static int 1313get_result(u_int unit, int result_len, u_char *result) 1314{ 1315 unsigned int port = scd_data[unit].iobase; 1316 unsigned int res_reg = port + IREG_RESULT; 1317 unsigned char c; 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 if (rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY)) 1379 return -0x100; 1380 1381 reg = port + IREG_RESULT; 1382 write_control(port, CBIT_RESULT_READY_CLEAR); 1383 switch ((rc = inb(reg)) & 0xf0) { 1384 case 0x20: 1385 rc = inb(reg); 1386 /* FALL TROUGH */ 1387 case 0x50: 1388 XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc)); 1389 return -rc; 1390 case 0x00: 1391 default: 1392 rc = inb(reg); 1393 XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc)); 1394 return rc; 1395 } 1396} 1397 1398static void 1399print_error(int unit, int errcode) 1400{ 1401 switch (errcode) { 1402 case -ERR_CD_NOT_LOADED: 1403 printf("scd%d: door is open\n", unit); 1404 break; 1405 case -ERR_NO_CD_INSIDE: 1406 printf("scd%d: no cd inside\n", unit); 1407 break; 1408 default: 1409 if (errcode == -0x100 || errcode > 0) 1410 printf("scd%d: device timeout\n", unit); 1411 else 1412 printf("scd%d: unexpected error 0x%x\n", unit, -errcode); 1413 break; 1414 } 1415} 1416 1417/* Returns 0 or errno value */ 1418static int 1419waitfor_status_bits(int unit, int bits_set, int bits_clear) 1420{ 1421 u_int port = scd_data[unit].iobase; 1422 u_int flags = scd_data[unit].flags; 1423 u_int reg = port + IREG_STATUS; 1424 u_int max_loop; 1425 u_char c = 0; 1426 1427 if (flags & SCDPROBING) { 1428 max_loop = 0; 1429 while (max_loop++ < 1000) { 1430 c = inb(reg); 1431 if (c == 0xff) 1432 return EIO; 1433 if (c & SBIT_ATTENTION) { 1434 process_attention(unit); 1435 continue; 1436 } 1437 if ((c & bits_set) == bits_set && 1438 (c & bits_clear) == 0) 1439 { 1440 break; 1441 } 1442 DELAY(10000); 1443 } 1444 } else { 1445 max_loop = 100; 1446 while (max_loop-- > 0) { 1447 c = inb(reg); 1448 if (c & SBIT_ATTENTION) { 1449 process_attention(unit); 1450 continue; 1451 } 1452 if ((c & bits_set) == bits_set && 1453 (c & bits_clear) == 0) 1454 { 1455 break; 1456 } 1457 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1458 } 1459 } 1460 if ((c & bits_set) == bits_set && 1461 (c & bits_clear) == 0) 1462 { 1463 return 0; 1464 } 1465#ifdef SCD_DEBUG 1466 if (scd_debuglevel > 0) 1467 printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear); 1468 else 1469#endif 1470 printf("scd%d: timeout.\n", unit); 1471 return EIO; 1472} 1473 1474/* these two routines for xcdplayer - "borrowed" from mcd.c */ 1475static int 1476scd_toc_header (int unit, struct ioc_toc_header* th) 1477{ 1478 struct scd_data *cd = scd_data + unit; 1479 int rc; 1480 1481 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1482 print_error(unit, rc); 1483 return EIO; 1484 } 1485 1486 th->starting_track = cd->first_track; 1487 th->ending_track = cd->last_track; 1488 th->len = 0; /* not used */ 1489 1490 return 0; 1491} 1492 1493static int 1494scd_toc_entrys (int unit, struct ioc_read_toc_entry *te) 1495{ 1496 struct scd_data *cd = scd_data + unit; 1497 struct cd_toc_entry toc_entry; 1498 int rc, i, len = te->data_len; 1499 1500 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1501 print_error(unit, rc); 1502 return EIO; 1503 } 1504 1505 /* find the toc to copy*/ 1506 i = te->starting_track; 1507 if (i == SCD_LASTPLUS1) 1508 i = cd->last_track + 1; 1509 1510 /* verify starting track */ 1511 if (i < cd->first_track || i > cd->last_track+1) 1512 return EINVAL; 1513 1514 /* valid length ? */ 1515 if (len < sizeof(struct cd_toc_entry) 1516 || (len % sizeof(struct cd_toc_entry)) != 0) 1517 return EINVAL; 1518 1519 /* copy the toc data */ 1520 toc_entry.control = cd->toc[i].ctl; 1521 toc_entry.addr_type = te->address_format; 1522 toc_entry.track = i; 1523 if (te->address_format == CD_MSF_FORMAT) { 1524 toc_entry.addr.msf.unused = 0; 1525 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); 1526 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); 1527 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); 1528 } 1529 1530 /* copy the data back */ 1531 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1532 return EFAULT; 1533 1534 return 0; 1535} 1536 1537#endif /* NSCD > 0 */ 1538