scd.c revision 8876
1244543Sbrooks/*- 2244543Sbrooks * Copyright (c) 1995 Mikael Hybsch 3244543Sbrooks * All rights reserved. 4244543Sbrooks * 5244543Sbrooks * Portions of this file are copied from mcd.c 6244543Sbrooks * which has the following copyrights: 7244543Sbrooks * 8244543Sbrooks * Copyright 1993 by Holger Veit (data part) 9244543Sbrooks * Copyright 1993 by Brian Moore (audio part) 10244543Sbrooks * Changes Copyright 1993 by Gary Clark II 11244543Sbrooks * Changes Copyright (C) 1994 by Andrew A. Chernov 12244543Sbrooks * 13244543Sbrooks * Rewrote probe routine to work on newer Mitsumi drives. 14244543Sbrooks * Additional changes (C) 1994 by Jordan K. Hubbard 15244543Sbrooks * 16244543Sbrooks * All rights reserved. 17244543Sbrooks * 18244543Sbrooks * Redistribution and use in source and binary forms, with or without 19244543Sbrooks * modification, are permitted provided that the following conditions 20244543Sbrooks * are met: 21244543Sbrooks * 1. Redistributions of source code must retain the above copyright 22244543Sbrooks * notice, this list of conditions and the following disclaimer 23244543Sbrooks * in this position and unchanged. 24244543Sbrooks * 2. Redistributions in binary form must reproduce the above copyright 25244543Sbrooks * notice, this list of conditions and the following disclaimer in the 26244543Sbrooks * documentation and/or other materials provided with the distribution. 27244543Sbrooks * 3. The name of the author may not be used to endorse or promote products 28244543Sbrooks * derived from this software withough specific prior written permission 29244543Sbrooks * 30244543Sbrooks * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 31244543Sbrooks * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 32244543Sbrooks * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 33244543Sbrooks * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 34244543Sbrooks * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 35244543Sbrooks * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36244543Sbrooks * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37244543Sbrooks * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38244543Sbrooks * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 39244543Sbrooks * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40244543Sbrooks * 41244543Sbrooks */ 42244543Sbrooks 43244543Sbrooks 44244543Sbrooks/* $Id: scd.c,v 1.4 1995/05/09 12:25:58 rgrimes Exp $ */ 45244543Sbrooks 46244543Sbrooks/* Please send any comments to micke@dynas.se */ 47244543Sbrooks 48244543Sbrooks#define SCD_DEBUG 0 49244543Sbrooks 50244543Sbrooks#include "scd.h" 51244543Sbrooks#if NSCD > 0 52244543Sbrooks#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/proc.h> 59#include <sys/stat.h> 60#include <sys/uio.h> 61#include <sys/ioctl.h> 62#include <sys/cdio.h> 63#include <sys/errno.h> 64#include <sys/dkbad.h> 65#include <sys/disklabel.h> 66#include <sys/devconf.h> 67 68#include <machine/clock.h> 69#include <machine/stdarg.h> 70 71#include <i386/isa/isa.h> 72#include <i386/isa/isa_device.h> 73#include <i386/isa/scdreg.h> 74 75#define scd_part(dev) ((minor(dev)) & 7) 76#define scd_unit(dev) (((minor(dev)) & 0x38) >> 3) 77#define scd_phys(dev) (((minor(dev)) & 0x40) >> 6) 78#define RAW_PART 2 79 80/* flags */ 81#define SCDOPEN 0x0001 /* device opened */ 82#define SCDVALID 0x0002 /* parameters loaded */ 83#define SCDINIT 0x0004 /* device is init'd */ 84#define SCDPROBING 0x0020 /* probing */ 85#define SCDTOC 0x0100 /* already read toc */ 86#define SCDMBXBSY 0x0200 /* local mbx is busy */ 87#define SCDSPINNING 0x0400 /* drive is spun up */ 88 89#define SCD_S_BEGIN 0 90#define SCD_S_BEGIN1 1 91#define SCD_S_WAITSTAT 2 92#define SCD_S_WAITFIFO 3 93#define SCD_S_WAITSPIN 4 94#define SCD_S_WAITREAD 5 95#define SCD_S_WAITPARAM 6 96 97#define RDELAY_WAIT 300 98#define RDELAY_WAITREAD 300 99 100#define SCDBLKSIZE 2048 101 102#ifdef SCD_DEBUG 103 int scd_debuglevel = SCD_DEBUG; 104# define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;} 105#else 106# define XDEBUG(level, data) 107#endif 108 109struct scd_mbx { 110 short unit; 111 short port; 112 short retry; 113 short nblk; 114 int sz; 115 u_long skip; 116 struct buf *bp; 117 int p_offset; 118 short count; 119}; 120 121struct scd_data { 122 int iobase; 123 char double_speed; 124 char *name; 125 short flags; 126 int blksize; 127 u_long disksize; 128 struct disklabel dlabel; 129 int openflag; 130 struct { 131 unsigned char adr :4; 132 unsigned char ctl :4; /* xcdplayer needs this */ 133 unsigned char start_msf[3]; 134 } toc[MAX_TRACKS]; 135 short first_track; 136 short last_track; 137 struct ioc_play_msf last_play; 138 139 short audio_status; 140 struct buf head; /* head of buf queue */ 141 struct scd_mbx mbx; 142} scd_data[NSCD]; 143 144/* prototypes */ 145int scdopen(dev_t dev); 146int scdclose(dev_t dev); 147void scdstrategy(struct buf *bp); 148int scdioctl(dev_t dev, int cmd, caddr_t addr, int flags); 149int scdsize(dev_t dev); 150 151static int bcd2bin(bcd_t b); 152static bcd_t bin2bcd(int b); 153static void hsg2msf(int hsg, bcd_t *msf); 154static int msf2hsg(bcd_t *msf); 155 156static void process_attention(unsigned unit); 157static inline void write_control(unsigned port, unsigned data); 158static int waitfor_status_bits(int unit, int bits_set, int bits_clear); 159static int waitfor_attention(int unit); 160static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...); 161static void init_drive(unsigned unit); 162static int spin_up(unsigned unit); 163static int read_toc(dev_t dev); 164static int get_result(u_int unit, int result_len, u_char *result); 165static void print_error(int unit, int errcode); 166 167static void scd_start(int unit); 168static void scd_doread(int state, struct scd_mbx *mbxin); 169 170static int scd_eject(int unit); 171static int scd_stop(int unit); 172static int scd_pause(int unit); 173static int scd_resume(int unit); 174static int scd_playtracks(int unit, struct ioc_play_track *pt); 175static int scd_playmsf(int unit, struct ioc_play_msf *msf); 176static int scd_play(int unit, struct ioc_play_msf *msf); 177static int scd_subchan(int unit, struct ioc_read_subchannel *sc); 178static int read_subcode(int unit, struct sony_subchannel_position_data *sc); 179 180/* for xcdplayer */ 181static int scd_toc_header(int unit, struct ioc_toc_header *th); 182static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 183#define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 184 185extern int hz; 186 187int scd_probe(struct isa_device *dev); 188int scd_attach(struct isa_device *dev); 189struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; 190 191static struct kern_devconf kdc_scd[NSCD] = { { 192 0, 0, 0, /* filled in by dev_attach */ 193 "scd", 0, { MDDT_ISA, 0, "bio" }, 194 isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, 195 &kdc_isa0, /* parent */ 196 0, /* parentdata */ 197 DC_UNCONFIGURED, /* status */ 198 "Sony CD-ROM drive", /* properly filled later */ 199 DC_CLS_RDISK /* class */ 200} }; 201 202static inline void 203scd_registerdev(struct isa_device *id) 204{ 205 if(id->id_unit) 206 kdc_scd[id->id_unit] = kdc_scd[0]; 207 kdc_scd[id->id_unit].kdc_unit = id->id_unit; 208 kdc_scd[id->id_unit].kdc_isa = id; 209 dev_attach(&kdc_scd[id->id_unit]); 210} 211 212int scd_attach(struct isa_device *dev) 213{ 214 struct scd_data *cd = scd_data + dev->id_unit; 215 int i; 216 217 cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ 218 219 kdc_scd[dev->id_unit].kdc_state = DC_IDLE; 220 /* name filled in probe */ 221 kdc_scd[dev->id_unit].kdc_description = scd_data[dev->id_unit].name; 222 printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name); 223 224 init_drive(dev->id_unit); 225 226 cd->flags = SCDINIT; 227 cd->audio_status = CD_AS_AUDIO_INVALID; 228 229 return 1; 230} 231 232int 233scdopen(dev_t dev) 234{ 235 int unit,part,phys; 236 int rc; 237 struct scd_data *cd; 238 239 unit = scd_unit(dev); 240 if (unit >= NSCD) 241 return ENXIO; 242 243 cd = scd_data + unit; 244 part = scd_part(dev); 245 phys = scd_phys(dev); 246 247 /* not initialized*/ 248 if (!(cd->flags & SCDINIT)) 249 return ENXIO; 250 251 /* invalidated in the meantime? mark all open part's invalid */ 252 if (cd->openflag) 253 return ENXIO; 254 255 XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS))); 256 257 if ((rc = spin_up(unit)) != 0) { 258 print_error(unit, rc); 259 return EIO; 260 } 261 if (!(cd->flags & SCDTOC)) { 262 int loop_count = 3; 263 264 while (loop_count-- > 0 && (rc = read_toc(dev)) != 0) { 265 if (rc == ERR_NOT_SPINNING) { 266 rc = spin_up(unit); 267 if (rc) { 268 print_error(unit, rc);\ 269 return EIO; 270 } 271 continue; 272 } 273 printf("scd%d: TOC read error 0x%x\n", unit, rc); 274 return EIO; 275 } 276 } 277 278 cd->openflag = 1; 279 cd->flags |= SCDVALID; 280 kdc_scd[unit].kdc_state = DC_BUSY; 281 282 return 0; 283} 284 285int 286scdclose(dev_t dev) 287{ 288 int unit,part,phys; 289 struct scd_data *cd; 290 int rlen; 291 char rdata[10]; 292 293 unit = scd_unit(dev); 294 if (unit >= NSCD) 295 return ENXIO; 296 297 cd = scd_data + unit; 298 part = scd_part(dev); 299 phys = scd_phys(dev); 300 301 if (!(cd->flags & SCDINIT) || !cd->openflag) 302 return ENXIO; 303 304 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { 305 (void)send_cmd(unit, CMD_SPIN_DOWN, 0); 306 cd->flags &= ~SCDSPINNING; 307 } 308 309 kdc_scd[unit].kdc_state = DC_IDLE; 310 311 /* close channel */ 312 cd->openflag = 0; 313 314 return 0; 315} 316 317void 318scdstrategy(struct buf *bp) 319{ 320 struct scd_data *cd; 321 struct buf *qp; 322 int s; 323 int unit = scd_unit(bp->b_dev); 324 325 cd = scd_data + unit; 326 327 XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n", unit, bp->b_blkno, bp->b_bcount)); 328 329 if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) { 330 printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n", 331 unit, bp->b_blkno, bp->b_bcount); 332 bp->b_error = EINVAL; 333 bp->b_flags |= B_ERROR; 334 goto bad; 335 } 336 337 /* if device invalidated (e.g. media change, door open), error */ 338 if (!(cd->flags & SCDVALID)) { 339 printf("scd%d: media changed\n", unit); 340 bp->b_error = EIO; 341 goto bad; 342 } 343 344 /* read only */ 345 if (!(bp->b_flags & B_READ)) { 346 bp->b_error = EROFS; 347 goto bad; 348 } 349 350 /* no data to read */ 351 if (bp->b_bcount == 0) 352 goto done; 353 354 if (!(cd->flags & SCDTOC)) { 355 bp->b_error = EIO; 356 goto bad; 357 } 358 /* adjust transfer if necessary */ 359 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) 360 goto done; 361 362 bp->b_pblkno = bp->b_blkno; 363 bp->b_resid = 0; 364 365 /* queue it */ 366 qp = &cd->head; 367 s = splbio(); 368 disksort(qp,bp); 369 splx(s); 370 371 /* now check whether we can perform processing */ 372 scd_start(unit); 373 return; 374 375bad: 376 bp->b_flags |= B_ERROR; 377done: 378 bp->b_resid = bp->b_bcount; 379 biodone(bp); 380 return; 381} 382 383static void 384scd_start(int unit) 385{ 386 struct scd_data *cd = scd_data + unit; 387 struct buf *bp, *qp = &cd->head; 388 struct partition *p; 389 int part; 390 register s = splbio(); 391 392 if (cd->flags & SCDMBXBSY) { 393 splx(s); 394 return; 395 } 396 397 if ((bp = qp->b_actf) != 0) { 398 /* block found to process, dequeue */ 399 qp->b_actf = bp->b_actf; 400 cd->flags |= SCDMBXBSY; 401 splx(s); 402 } else { 403 /* nothing to do */ 404 splx(s); 405 return; 406 } 407 408 p = cd->dlabel.d_partitions + scd_part(bp->b_dev); 409 410 cd->mbx.unit = unit; 411 cd->mbx.port = cd->iobase; 412 cd->mbx.retry = 3; 413 cd->mbx.bp = bp; 414 cd->mbx.p_offset = p->p_offset; 415 splx(s); 416 417 scd_doread(SCD_S_BEGIN,&(cd->mbx)); 418 return; 419} 420 421int 422scdioctl(dev_t dev, int cmd, caddr_t addr, int flags) 423{ 424 struct scd_data *cd; 425 int unit,part; 426 427 unit = scd_unit(dev); 428 part = scd_part(dev); 429 cd = scd_data + unit; 430 431 XDEBUG(1, ("scd%d: ioctl: cmd=0x%x\n", unit, cmd)); 432 433 if (!(cd->flags & SCDVALID)) 434 return EIO; 435 436 switch (cmd) { 437 case DIOCSBAD: 438 return EINVAL; 439 case DIOCGDINFO: 440 *(struct disklabel *)addr = cd->dlabel; 441 return 0; 442 case DIOCGPART: 443 ((struct partinfo *)addr)->disklab = &cd->dlabel; 444 ((struct partinfo *)addr)->part = 445 &cd->dlabel.d_partitions[0]; 446 return 0; 447 case CDIOCPLAYTRACKS: 448 return scd_playtracks(unit, (struct ioc_play_track *) addr); 449 case CDIOCPLAYBLOCKS: 450 return EINVAL; 451 case CDIOCPLAYMSF: 452 return scd_playmsf(unit, (struct ioc_play_msf *) addr); 453 case CDIOCREADSUBCHANNEL: 454 return scd_subchan(unit, (struct ioc_read_subchannel *) addr); 455 case CDIOREADTOCHEADER: 456 return scd_toc_header (unit, (struct ioc_toc_header *) addr); 457 case CDIOREADTOCENTRYS: 458 return scd_toc_entrys (unit, (struct ioc_read_toc_entry*) addr); 459 case CDIOCSETPATCH: 460 case CDIOCGETVOL: 461 case CDIOCSETVOL: 462 case CDIOCSETMONO: 463 case CDIOCSETSTERIO: 464 case CDIOCSETMUTE: 465 case CDIOCSETLEFT: 466 case CDIOCSETRIGHT: 467 return EINVAL; 468 case CDIOCRESUME: 469 return scd_resume(unit); 470 case CDIOCPAUSE: 471 return scd_pause(unit); 472 case CDIOCSTART: 473 return EINVAL; 474 case CDIOCSTOP: 475 return scd_stop(unit); 476 case CDIOCEJECT: 477 return scd_eject(unit); 478 case CDIOCALLOW: 479 return 0; 480 case CDIOCSETDEBUG: 481#ifdef SCD_DEBUG 482 scd_debuglevel++; 483#endif 484 return 0; 485 case CDIOCCLRDEBUG: 486#ifdef SCD_DEBUG 487 scd_debuglevel = 0; 488 489#endif 490 return 0; 491 default: 492 printf("scd%d: unsupported ioctl (cmd=0x%x)\n", unit, cmd); 493 return ENOTTY; 494 } 495} 496 497int 498scdsize(dev_t dev) 499{ 500 return -1; 501} 502 503void 504scdintr() 505{ 506 return; 507} 508 509/*************************************************************** 510 * lower level of driver starts here 511 **************************************************************/ 512 513static int 514scd_playtracks(int unit, struct ioc_play_track *pt) 515{ 516 struct scd_data *cd = scd_data + unit; 517 struct ioc_play_msf msf; 518 int a = pt->start_track; 519 int z = pt->end_track; 520 int rc, i; 521 522 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 523 if (rc == -ERR_NOT_SPINNING) { 524 if (spin_up(unit) != 0) 525 return EIO; 526 rc = read_toc(unit); 527 } 528 if (rc != 0) { 529 print_error(unit, rc); 530 return EIO; 531 } 532 } 533 534 XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit, 535 a, pt->start_index, z, pt->end_index)); 536 537 if ( a < cd->first_track 538 || a > cd->last_track 539 || a > z 540 || z > cd->last_track) 541 return EINVAL; 542 543 bcopy(cd->toc[a].start_msf, &msf.start_m, 3); 544 hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m); 545 546 return scd_play(unit, &msf); 547} 548 549/* The start/end msf is expected to be in bin format */ 550static int 551scd_playmsf(int unit, struct ioc_play_msf *msfin) 552{ 553 struct ioc_play_msf msf; 554 555 msf.start_m = bin2bcd(msfin->start_m); 556 msf.start_s = bin2bcd(msfin->start_s); 557 msf.start_f = bin2bcd(msfin->start_f); 558 msf.end_m = bin2bcd(msfin->end_m); 559 msf.end_s = bin2bcd(msfin->end_s); 560 msf.end_f = bin2bcd(msfin->end_f); 561 562 return scd_play(unit, &msf); 563} 564 565/* The start/end msf is expected to be in bcd format */ 566static int 567scd_play(int unit, struct ioc_play_msf *msf) 568{ 569 struct scd_data *cd = scd_data + unit; 570 int i, rc; 571 572 XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit, 573 msf->start_m, msf->start_s, msf->start_f, 574 msf->end_m, msf->end_s, msf->end_f)); 575 576 for (i = 0; i < 2; i++) { 577 rc = send_cmd(unit, CMD_PLAY_AUDIO, 7, 578 0x03, 579 msf->start_m, msf->start_s, msf->start_f, 580 msf->end_m, msf->end_s, msf->end_f); 581 if (rc == -ERR_NOT_SPINNING) { 582 cd->flags &= ~SCDSPINNING; 583 if (spin_up(unit) != 0) 584 return EIO; 585 } else if (rc < 0) { 586 print_error(unit, rc); 587 return EIO; 588 } else { 589 break; 590 } 591 } 592 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 593 bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf)); 594 return 0; 595} 596 597static int 598scd_stop(int unit) 599{ 600 struct scd_data *cd = scd_data + unit; 601 602 (void)send_cmd(unit, CMD_STOP_AUDIO, 0); 603 cd->audio_status = CD_AS_PLAY_COMPLETED; 604 return 0; 605} 606 607static int 608scd_pause(int unit) 609{ 610 struct scd_data *cd = scd_data + unit; 611 struct sony_subchannel_position_data subpos; 612 613 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) 614 return EINVAL; 615 616 if (read_subcode(unit, &subpos) != 0) 617 return EIO; 618 619 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0) 620 return EIO; 621 622 cd->last_play.start_m = subpos.abs_msf[0]; 623 cd->last_play.start_s = subpos.abs_msf[1]; 624 cd->last_play.start_f = subpos.abs_msf[2]; 625 cd->audio_status = CD_AS_PLAY_PAUSED; 626 627 XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit, 628 cd->last_play.start_m, 629 cd->last_play.start_s, 630 cd->last_play.start_f)); 631 632 return 0; 633} 634 635static int 636scd_resume(int unit) 637{ 638 if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED) 639 return EINVAL; 640 return scd_play(unit, &scd_data[unit].last_play); 641} 642 643static int 644scd_eject(int unit) 645{ 646 struct scd_data *cd = scd_data + unit; 647 int port = cd->iobase; 648 649 cd->audio_status = CD_AS_AUDIO_INVALID; 650 cd->flags &= ~(SCDSPINNING|SCDTOC); 651 652 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 || 653 send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 || 654 send_cmd(unit, CMD_EJECT, 0) != 0) 655 { 656 return EIO; 657 } 658 return 0; 659} 660 661static int 662scd_subchan(int unit, struct ioc_read_subchannel *sc) 663{ 664 struct scd_data *cd = scd_data + unit; 665 struct sony_subchannel_position_data q; 666 struct cd_sub_channel_info data; 667 668 XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit, 669 sc->address_format, 670 sc->data_format)); 671 672 if (sc->address_format != CD_MSF_FORMAT) 673 return EINVAL; 674 675 if (sc->data_format != CD_CURRENT_POSITION) 676 return EINVAL; 677 678 if (read_subcode(unit, &q) != 0) 679 return EIO; 680 681 data.header.audio_status = cd->audio_status; 682 data.what.position.data_format = CD_MSF_FORMAT; 683 data.what.position.track_number = bcd2bin(q.track_number); 684 data.what.position.reladdr.msf.unused = 0; 685 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 686 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 687 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 688 data.what.position.absaddr.msf.unused = 0; 689 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 690 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 691 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 692 693 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) 694 return EFAULT; 695 return 0; 696} 697 698int 699scd_probe(struct isa_device *dev) 700{ 701 struct sony_drive_configuration drive_config; 702 int unit = dev->id_unit; 703 int rc; 704 static char namebuf[8+16+8+3]; 705 char *s = namebuf; 706 int loop_count = 0; 707 708 scd_data[unit].flags = SCDPROBING; 709 scd_data[unit].iobase = dev->id_iobase; 710 711 bzero(&drive_config, sizeof(drive_config)); 712 713 scd_registerdev(dev); 714 715again: 716 /* Reset drive */ 717 write_control(dev->id_iobase, CBIT_RESET_DRIVE); 718 719 /* Calm down */ 720 DELAY(300000); 721 722 /* Only the ATTENTION bit may be set */ 723 if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) { 724 XDEBUG(1, ("scd: too many bits set. probe failed.\n")); 725 return 0; 726 } 727 rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0); 728 if (rc != sizeof(drive_config)) { 729 /* Sometimes if the drive is playing audio I get */ 730 /* the bad result 82. Fix by repeating the reset */ 731 if (rc > 0 && loop_count++ == 0) 732 goto again; 733 return 0; 734 } 735 if (get_result(unit, rc, (u_char *)&drive_config) != 0) 736 return 0; 737 738 bcopy(drive_config.vendor, namebuf, 8); 739 s = namebuf+8; 740 while (*(s-1) == ' ') /* Strip trailing spaces */ 741 s--; 742 *s++ = ' '; 743 bcopy(drive_config.product, s, 16); 744 s += 16; 745 while (*(s-1) == ' ') 746 s--; 747 *s++ = ' '; 748 bcopy(drive_config.revision, s, 8); 749 s += 8; 750 while (*(s-1) == ' ') 751 s--; 752 *s = 0; 753 754 scd_data[unit].name = namebuf; 755 756 if (drive_config.config & 0x10) 757 scd_data[unit].double_speed = 1; 758 else 759 scd_data[unit].double_speed = 0; 760 761 return 4; 762} 763 764static int 765read_subcode(int unit, struct sony_subchannel_position_data *sc) 766{ 767 int rc; 768 769 rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0); 770 if (rc < 0 || rc < sizeof(*sc)) 771 return EIO; 772 if (get_result(unit, rc, (u_char *)sc) != 0) 773 return EIO; 774 return 0; 775} 776 777/* State machine copied from mcd.c */ 778 779/* This (and the code in mcd.c) will not work with more than one drive */ 780/* because there is only one mbxsave below. Should fix that some day. */ 781/* (mbxsave & state should probably be included in the scd_data struct and */ 782/* the unit number used as first argument to scd_doread().) /Micke */ 783 784/* state machine to process read requests 785 * initialize with SCD_S_BEGIN: reset state machine 786 * SCD_S_WAITSTAT: wait for ready (!busy) 787 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 788 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 789 * SCD_S_WAITREAD: wait for data ready, read data 790 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 791 */ 792 793static struct scd_mbx *mbxsave; 794 795static void 796scd_doread(int state, struct scd_mbx *mbxin) 797{ 798 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin; 799 int unit = mbx->unit; 800 int port = mbx->port; 801 struct buf *bp = mbx->bp; 802 struct scd_data *cd = scd_data + unit; 803 int reg,i,k,c; 804 int blknum; 805 caddr_t addr; 806 char rdata[10]; 807 static char sdata[3]; /* Must be preserved between calls to this function */ 808 809loop: 810 switch (state) { 811 case SCD_S_BEGIN: 812 mbx = mbxsave = mbxin; 813 814 case SCD_S_BEGIN1: 815 /* get status */ 816 mbx->count = RDELAY_WAIT; 817 818 process_attention(unit); 819 goto trystat; 820 821 case SCD_S_WAITSTAT: 822 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSTAT); 823 if (mbx->count-- <= 0) { 824 printf("scd%d: timeout. drive busy.\n",unit); 825 goto harderr; 826 } 827 828trystat: 829 if (IS_BUSY(port)) { 830 timeout((timeout_func_t)scd_doread, 831 (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */ 832 return; 833 } 834 835 process_attention(unit); 836 837 /* reject, if audio active */ 838 if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) { 839 printf("scd%d: audio is active\n",unit); 840 goto harderr; 841 } 842 843 mbx->sz = cd->blksize; 844 845firstblock: 846 /* for first block */ 847 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 848 mbx->skip = 0; 849 850nextblock: 851 if (!(cd->flags & SCDVALID)) 852 goto changed; 853 854 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 855 + mbx->p_offset + mbx->skip/mbx->sz; 856 857 XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum)); 858 859 /* build parameter block */ 860 hsg2msf(blknum, sdata); 861 862 write_control(port, CBIT_RESULT_READY_CLEAR); 863 write_control(port, CBIT_RPARAM_CLEAR); 864 write_control(port, CBIT_DATA_READY_CLEAR); 865 866 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 867 goto writeparam; 868 869 mbx->count = 100; 870 timeout((timeout_func_t)scd_doread, 871 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 872 return; 873 874 case SCD_S_WAITSPIN: 875 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSPIN); 876 if (mbx->count-- <= 0) { 877 printf("scd%d: timeout waiting for drive to spin up.\n", unit); 878 goto harderr; 879 } 880 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 881 timeout((timeout_func_t)scd_doread, 882 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 883 return; 884 } 885 write_control(port, CBIT_RESULT_READY_CLEAR); 886 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 887 case 0x20: 888 i = inb(port+IREG_RESULT); 889 print_error(unit, i); 890 goto harderr; 891 case 0x00: 892 (void)inb(port+IREG_RESULT); 893 cd->flags |= SCDSPINNING; 894 break; 895 } 896 XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit)); 897 898 state = SCD_S_BEGIN1; 899 goto loop; 900 901 case SCD_S_WAITFIFO: 902 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITFIFO); 903 if (mbx->count-- <= 0) { 904 printf("scd%d: timeout. write param not ready.\n",unit); 905 goto harderr; 906 } 907 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 908 timeout((timeout_func_t)scd_doread, 909 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 910 return; 911 } 912 XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100)); 913 914writeparam: 915 /* The reason this test isn't done 'till now is to make sure */ 916 /* that it is ok to send the SPIN_UP cmd below. */ 917 if (!(cd->flags & SCDSPINNING)) { 918 XDEBUG(1, ("scd%d: spinning up drive ...\n", unit)); 919 outb(port+OREG_COMMAND, CMD_SPIN_UP); 920 mbx->count = 300; 921 timeout((timeout_func_t)scd_doread, 922 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 923 return; 924 } 925 926 reg = port + OREG_WPARAMS; 927 /* send the read command */ 928 disable_intr(); 929 outb(reg, sdata[0]); 930 outb(reg, sdata[1]); 931 outb(reg, sdata[2]); 932 outb(reg, 0); 933 outb(reg, 0); 934 outb(reg, 1); 935 outb(port+OREG_COMMAND, CMD_READ); 936 enable_intr(); 937 938 mbx->count = RDELAY_WAITREAD; 939 for (i = 0; i < 50; i++) { 940 if (STATUS_BIT(port, SBIT_DATA_READY)) 941 goto got_data; 942 DELAY(100); 943 } 944 945 timeout((timeout_func_t)scd_doread, 946 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 947 return; 948 949 case SCD_S_WAITREAD: 950 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITREAD); 951 if (mbx->count-- <= 0) { 952 if (STATUS_BIT(port, SBIT_RESULT_READY)) 953 goto got_param; 954 printf("scd%d: timeout while reading data\n",unit); 955 goto readerr; 956 } 957 if (!STATUS_BIT(port, SBIT_DATA_READY)) { 958 process_attention(unit); 959 if (!(cd->flags & SCDVALID)) 960 goto changed; 961 timeout((timeout_func_t)scd_doread, 962 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 963 return; 964 } 965 XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD)); 966 967got_data: 968 /* data is ready */ 969 addr = bp->b_un.b_addr + mbx->skip; 970 write_control(port, CBIT_DATA_READY_CLEAR); 971 insb(port+IREG_DATA, addr, mbx->sz); 972 973 mbx->count = 100; 974 for (i = 0; i < 20; i++) { 975 if (STATUS_BIT(port, SBIT_RESULT_READY)) 976 goto waitfor_param; 977 DELAY(100); 978 } 979 goto waitfor_param; 980 981 case SCD_S_WAITPARAM: 982 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITPARAM); 983 if (mbx->count-- <= 0) { 984 printf("scd%d: timeout waiting for params\n",unit); 985 goto readerr; 986 } 987 988waitfor_param: 989 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 990 timeout((timeout_func_t)scd_doread, 991 (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */ 992 return; 993 } 994#if SCD_DEBUG 995 if (mbx->count < 100 && scd_debuglevel > 0) 996 printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100); 997#endif 998 999got_param: 1000 write_control(port, CBIT_RESULT_READY_CLEAR); 1001 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 1002 case 0x50: 1003 switch (i) { 1004 case ERR_FATAL_READ_ERROR1: 1005 case ERR_FATAL_READ_ERROR2: 1006 printf("scd%d: unrecoverable read error 0x%x\n", unit, i); 1007 goto harderr; 1008 } 1009 break; 1010 case 0x20: 1011 i = inb(port+IREG_RESULT); 1012 switch (i) { 1013 case ERR_NOT_SPINNING: 1014 XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit)); 1015 if (mbx->retry-- > 0) { 1016 state = SCD_S_BEGIN1; 1017 cd->flags &= ~SCDSPINNING; 1018 goto loop; 1019 } 1020 goto harderr; 1021 default: 1022 print_error(unit, i); 1023 goto readerr; 1024 } 1025 case 0x00: 1026 i = inb(port+IREG_RESULT); 1027 break; 1028 } 1029 1030 if (--mbx->nblk > 0) { 1031 mbx->skip += mbx->sz; 1032 goto nextblock; 1033 } 1034 1035 /* return buffer */ 1036 bp->b_resid = 0; 1037 biodone(bp); 1038 1039 cd->flags &= ~SCDMBXBSY; 1040 scd_start(mbx->unit); 1041 return; 1042 } 1043 1044readerr: 1045 if (mbx->retry-- > 0) { 1046 printf("scd%d: retrying ...\n",unit); 1047 state = SCD_S_BEGIN1; 1048 goto loop; 1049 } 1050harderr: 1051 /* invalidate the buffer */ 1052 bp->b_error = EIO; 1053 bp->b_flags |= B_ERROR; 1054 bp->b_resid = bp->b_bcount; 1055 biodone(bp); 1056 1057 cd->flags &= ~SCDMBXBSY; 1058 scd_start(mbx->unit); 1059 return; 1060 1061changed: 1062 printf("scd%d: media changed\n", unit); 1063 goto harderr; 1064} 1065 1066static int 1067bcd2bin(bcd_t b) 1068{ 1069 return (b >> 4) * 10 + (b & 15); 1070} 1071 1072static bcd_t 1073bin2bcd(int b) 1074{ 1075 return ((b / 10) << 4) | (b % 10); 1076} 1077 1078static void 1079hsg2msf(int hsg, bcd_t *msf) 1080{ 1081 hsg += 150; 1082 M_msf(msf) = bin2bcd(hsg / 4500); 1083 hsg %= 4500; 1084 S_msf(msf) = bin2bcd(hsg / 75); 1085 F_msf(msf) = bin2bcd(hsg % 75); 1086} 1087 1088static int 1089msf2hsg(bcd_t *msf) 1090{ 1091 return (bcd2bin(M_msf(msf)) * 60 + 1092 bcd2bin(S_msf(msf))) * 75 + 1093 bcd2bin(F_msf(msf)) - 150; 1094} 1095 1096static void 1097process_attention(unsigned unit) 1098{ 1099 unsigned port = scd_data[unit].iobase; 1100 unsigned char code; 1101 int count = 0; 1102 int i; 1103 1104 while (IS_ATTENTION(port) && count++ < 30) { 1105 write_control(port, CBIT_ATTENTION_CLEAR); 1106 code = inb(port+IREG_RESULT); 1107 1108#if SCD_DEBUG 1109 if (scd_debuglevel > 0) { 1110 if (count == 1) 1111 printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code); 1112 else 1113 printf(",0x%x", code); 1114 } 1115#endif 1116 1117 switch (code) { 1118 case ATTEN_SPIN_DOWN: 1119 scd_data[unit].flags &= ~SCDSPINNING; 1120 break; 1121 1122 case ATTEN_SPIN_UP_DONE: 1123 scd_data[unit].flags |= SCDSPINNING; 1124 break; 1125 1126 case ATTEN_AUDIO_DONE: 1127 scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED; 1128 break; 1129 1130 case ATTEN_DRIVE_LOADED: 1131 scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1132 scd_data[unit].audio_status = CD_AS_AUDIO_INVALID; 1133 break; 1134 1135 case ATTEN_EJECT_PUSHED: 1136 scd_data[unit].flags &= ~SCDVALID; 1137 break; 1138 } 1139 DELAY(100); 1140 } 1141#if SCD_DEBUG 1142 if (scd_debuglevel > 0 && count > 0) 1143 printf("\n"); 1144#endif 1145} 1146 1147/* Returns 0 OR sony error code */ 1148static int 1149spin_up(unsigned unit) 1150{ 1151 unsigned char res_reg[12]; 1152 unsigned int res_size; 1153 int rc; 1154 int loop_count = 0; 1155 1156again: 1157 rc = send_cmd(unit, CMD_SPIN_UP, NULL, 0, res_reg, &res_size); 1158 if (rc != 0) { 1159 XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc)); 1160 return rc; 1161 } 1162 1163 if (!(scd_data[unit].flags & SCDTOC)) { 1164 rc = send_cmd(unit, CMD_READ_TOC, 0); 1165 if (rc == ERR_NOT_SPINNING) { 1166 if (loop_count++ < 3) 1167 goto again; 1168 return rc; 1169 } 1170 if (rc != 0) 1171 return rc; 1172 } 1173 1174 scd_data[unit].flags |= SCDSPINNING; 1175 1176 return 0; 1177} 1178 1179static struct sony_tracklist * 1180get_tl(struct sony_toc *toc, int size) 1181{ 1182 struct sony_tracklist *tl = &toc->tracks[0]; 1183 1184 if (tl->track != 0xb0) 1185 return tl; 1186 (char *)tl += 9; 1187 if (tl->track != 0xb1) 1188 return tl; 1189 (char *)tl += 9; 1190 if (tl->track != 0xb2) 1191 return tl; 1192 (char *)tl += 9; 1193 if (tl->track != 0xb3) 1194 return tl; 1195 (char *)tl += 9; 1196 if (tl->track != 0xb4) 1197 return tl; 1198 (char *)tl += 9; 1199 if (tl->track != 0xc0) 1200 return tl; 1201 (char *)tl += 9; 1202 return tl; 1203} 1204 1205static int 1206read_toc(dev_t dev) 1207{ 1208 unsigned unit; 1209 struct scd_data *cd; 1210 unsigned part = 0; /* For now ... */ 1211 struct sony_toc toc; 1212 struct sony_tracklist *tl; 1213 int rc, i, j; 1214 u_long first, last; 1215 1216 unit = scd_unit(dev); 1217 cd = scd_data + unit; 1218 1219 rc = send_cmd(unit, CMD_GET_TOC, 1, part+1); 1220 if (rc < 0) 1221 return rc; 1222 if (rc > sizeof(toc)) { 1223 printf("scd%d: program error: toc too large (%d)\n", unit, rc); 1224 return EIO; 1225 } 1226 if (get_result(unit, rc, (u_char *)&toc) != 0) 1227 return EIO; 1228 1229 XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc))); 1230 1231 tl = get_tl(&toc, rc); 1232 first = msf2hsg(tl->start_msf); 1233 last = msf2hsg(toc.lead_out_start_msf); 1234 cd->blksize = SCDBLKSIZE; 1235 cd->disksize = last*cd->blksize/DEV_BSIZE; 1236 1237 XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit, 1238 first, last)); 1239 1240 cd->first_track = bcd2bin(toc.first_track); 1241 cd->last_track = bcd2bin(toc.last_track); 1242 if (cd->last_track > (MAX_TRACKS-2)) 1243 cd->last_track = MAX_TRACKS-2; 1244 for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) { 1245 cd->toc[i].adr = tl[j].adr; 1246 cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1247 bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3); 1248#ifdef SCD_DEBUG 1249 if (scd_debuglevel > 0) { 1250 if ((j % 3) == 0) 1251 printf("\nscd%d: tracks ", unit); 1252 printf("[%03d: %2d %2d %2d] ", i, 1253 bcd2bin(cd->toc[i].start_msf[0]), 1254 bcd2bin(cd->toc[i].start_msf[1]), 1255 bcd2bin(cd->toc[i].start_msf[2])); 1256 } 1257#endif 1258 } 1259 bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3); 1260#ifdef SCD_DEBUG 1261 if (scd_debuglevel > 0) { 1262 i = cd->last_track+1; 1263 printf("[END: %2d %2d %2d]\n", 1264 bcd2bin(cd->toc[i].start_msf[0]), 1265 bcd2bin(cd->toc[i].start_msf[1]), 1266 bcd2bin(cd->toc[i].start_msf[2])); 1267 } 1268#endif 1269 1270 bzero(&cd->dlabel,sizeof(struct disklabel)); 1271 /* filled with spaces first */ 1272 strncpy(cd->dlabel.d_typename," ", 1273 sizeof(cd->dlabel.d_typename)); 1274 strncpy(cd->dlabel.d_typename, cd->name, 1275 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 1276 strncpy(cd->dlabel.d_packname,"unknown ", 1277 sizeof(cd->dlabel.d_packname)); 1278 cd->dlabel.d_secsize = cd->blksize; 1279 cd->dlabel.d_nsectors = 100; 1280 cd->dlabel.d_ntracks = 1; 1281 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 1282 cd->dlabel.d_secpercyl = 100; 1283 cd->dlabel.d_secperunit = cd->disksize; 1284 cd->dlabel.d_rpm = 300; 1285 cd->dlabel.d_interleave = 1; 1286 cd->dlabel.d_flags = D_REMOVABLE; 1287 cd->dlabel.d_npartitions= 1; 1288 cd->dlabel.d_partitions[0].p_offset = 0; 1289 cd->dlabel.d_partitions[0].p_size = cd->disksize; 1290 cd->dlabel.d_partitions[0].p_fstype = 9; 1291 cd->dlabel.d_magic = DISKMAGIC; 1292 cd->dlabel.d_magic2 = DISKMAGIC; 1293 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 1294 1295 cd->flags |= SCDTOC; 1296 1297 return 0; 1298} 1299 1300static inline void 1301write_control(unsigned port, unsigned data) 1302{ 1303 outb(port + OREG_CONTROL, data); 1304} 1305 1306static void 1307init_drive(unsigned unit) 1308{ 1309 int rc; 1310 1311 rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2, 1312 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0)); 1313 if (rc != 0) 1314 printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc); 1315} 1316 1317/* Returns 0 or errno */ 1318static int 1319get_result(u_int unit, int result_len, u_char *result) 1320{ 1321 unsigned int port = scd_data[unit].iobase; 1322 unsigned int res_reg = port + IREG_RESULT; 1323 unsigned char c; 1324 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1325 1326 XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len)); 1327 1328 while (result_len-- > 0) { 1329 if (loop_index++ >= 10) { 1330 loop_index = 1; 1331 if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0)) 1332 return EIO; 1333 write_control(port, CBIT_RESULT_READY_CLEAR); 1334 } 1335 if (result) 1336 *result++ = inb(res_reg); 1337 else 1338 (void)inb(res_reg); 1339 } 1340 return 0; 1341} 1342 1343/* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1344static int 1345send_cmd(u_int unit, u_char cmd, u_int nargs, ...) 1346{ 1347 va_list ap; 1348 u_int port = scd_data[unit].iobase; 1349 u_int reg; 1350 u_char c; 1351 int rc; 1352 int i; 1353 1354 if (waitfor_status_bits(unit, 0, SBIT_BUSY)) { 1355 printf("scd%d: drive busy\n", unit); 1356 return -0x100; 1357 } 1358 1359 XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs)); 1360 1361 write_control(port, CBIT_RESULT_READY_CLEAR); 1362 write_control(port, CBIT_RPARAM_CLEAR); 1363 1364 for (i = 0; i < 100; i++) 1365 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 1366 break; 1367 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 1368 XDEBUG(1, ("\nscd%d: wparam timeout\n", unit)); 1369 return -EIO; 1370 } 1371 1372 va_start(ap, nargs); 1373 reg = port + OREG_WPARAMS; 1374 for (i = 0; i < nargs; i++) { 1375 c = (u_char)va_arg(ap, int); 1376 outb(reg, c); 1377 XDEBUG(1, (",{0x%x}", c)); 1378 } 1379 va_end(ap); 1380 XDEBUG(1, ("\n")); 1381 1382 outb(port+OREG_COMMAND, cmd); 1383 1384 if (rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY)) 1385 return -0x100; 1386 1387 reg = port + IREG_RESULT; 1388 write_control(port, CBIT_RESULT_READY_CLEAR); 1389 switch ((rc = inb(reg)) & 0xf0) { 1390 case 0x20: 1391 rc = inb(reg); 1392 /* FALL TROUGH */ 1393 case 0x50: 1394 XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc)); 1395 return -rc; 1396 case 0x00: 1397 default: 1398 rc = inb(reg); 1399 XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc)); 1400 return rc; 1401 } 1402} 1403 1404static void 1405print_error(int unit, int errcode) 1406{ 1407 switch (errcode) { 1408 case -ERR_CD_NOT_LOADED: 1409 printf("scd%d: door is open\n", unit); 1410 break; 1411 case -ERR_NO_CD_INSIDE: 1412 printf("scd%d: no cd inside\n", unit); 1413 break; 1414 default: 1415 if (errcode == -0x100 || errcode > 0) 1416 printf("scd%d: device timeout\n", unit); 1417 else 1418 printf("scd%d: unexpected error 0x%x\n", unit, -errcode); 1419 break; 1420 } 1421} 1422 1423/* Returns 0 or errno value */ 1424static int 1425waitfor_status_bits(int unit, int bits_set, int bits_clear) 1426{ 1427 u_int port = scd_data[unit].iobase; 1428 u_int flags = scd_data[unit].flags; 1429 u_int reg = port + IREG_STATUS; 1430 u_int max_loop; 1431 u_char c = 0; 1432 1433 if (flags & SCDPROBING) { 1434 max_loop = 0; 1435 while (max_loop++ < 1000) { 1436 c = inb(reg); 1437 if (c == 0xff) 1438 return EIO; 1439 if (c & SBIT_ATTENTION) { 1440 process_attention(unit); 1441 continue; 1442 } 1443 if ((c & bits_set) == bits_set && 1444 (c & bits_clear) == 0) 1445 { 1446 break; 1447 } 1448 DELAY(10000); 1449 } 1450 } else { 1451 max_loop = 100; 1452 while (max_loop-- > 0) { 1453 c = inb(reg); 1454 if (c & SBIT_ATTENTION) { 1455 process_attention(unit); 1456 continue; 1457 } 1458 if ((c & bits_set) == bits_set && 1459 (c & bits_clear) == 0) 1460 { 1461 break; 1462 } 1463 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1464 } 1465 } 1466 if ((c & bits_set) == bits_set && 1467 (c & bits_clear) == 0) 1468 { 1469 return 0; 1470 } 1471#ifdef SCD_DEBUG 1472 if (scd_debuglevel > 0) 1473 printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear); 1474 else 1475#endif 1476 printf("scd%d: timeout.\n", unit); 1477 return EIO; 1478} 1479 1480/* these two routines for xcdplayer - "borrowed" from mcd.c */ 1481static int 1482scd_toc_header (int unit, struct ioc_toc_header* th) 1483{ 1484 struct scd_data *cd = scd_data + unit; 1485 int rc; 1486 1487 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1488 print_error(unit, rc); 1489 return EIO; 1490 } 1491 1492 th->starting_track = cd->first_track; 1493 th->ending_track = cd->last_track; 1494 th->len = 0; /* not used */ 1495 1496 return 0; 1497} 1498 1499static int 1500scd_toc_entrys (int unit, struct ioc_read_toc_entry *te) 1501{ 1502 struct scd_data *cd = scd_data + unit; 1503 struct cd_toc_entry toc_entry; 1504 int rc, i, len = te->data_len; 1505 1506 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1507 print_error(unit, rc); 1508 return EIO; 1509 } 1510 1511 /* find the toc to copy*/ 1512 i = te->starting_track; 1513 if (i == SCD_LASTPLUS1) 1514 i = cd->last_track + 1; 1515 1516 /* verify starting track */ 1517 if (i < cd->first_track || i > cd->last_track+1) 1518 return EINVAL; 1519 1520 /* valid length ? */ 1521 if (len < sizeof(struct cd_toc_entry) 1522 || (len % sizeof(struct cd_toc_entry)) != 0) 1523 return EINVAL; 1524 1525 /* copy the toc data */ 1526 toc_entry.control = cd->toc[i].ctl; 1527 toc_entry.addr_type = te->address_format; 1528 toc_entry.track = i; 1529 if (te->address_format == CD_MSF_FORMAT) { 1530 toc_entry.addr.msf.unused = 0; 1531 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); 1532 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); 1533 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); 1534 } 1535 1536 /* copy the data back */ 1537 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1538 return EFAULT; 1539 1540 return 0; 1541} 1542 1543#endif /* NSCD > 0 */ 1544