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sys/i386/isa/scd.c
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1 /*- 2 * Copyright (c) 1995 Mikael Hybsch 3 * All rights reserved. 4 * 5 * Portions of this file are copied from mcd.c 6 * which has the following copyrights: 7 * 8 * Copyright 1993 by Holger Veit (data part) 9 * Copyright 1993 by Brian Moore (audio part) 10 * Changes Copyright 1993 by Gary Clark II 11 * Changes Copyright (C) 1994 by Andrew A. Chernov 12 * 13 * Rewrote probe routine to work on newer Mitsumi drives. 14 * Additional changes (C) 1994 by Jordan K. Hubbard 15 * 16 * All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions 20 * are met: 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer 23 * in this position and unchanged. 24 * 2. Redistributions in binary form must reproduce the above copyright 25 * notice, this list of conditions and the following disclaimer in the 26 * documentation and/or other materials provided with the distribution. 27 * 3. The name of the author may not be used to endorse or promote products 28 * derived from this software 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 /* $FreeBSD: src/sys/i386/isa/scd.c,v 1.25.2.3 1999/09/05 08:13:23 peter 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/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/kernel.h> 67 #ifdef DEVFS 68 #include <sys/devfsext.h> 69 #endif /*DEVFS*/ 70 71 #include <machine/clock.h> 72 #include <machine/stdarg.h> 73 74 #include <i386/isa/isa_device.h> 75 #include <i386/isa/scdreg.h> 76 77 78 #define scd_part(dev) ((minor(dev)) & 7) 79 #define scd_unit(dev) (((minor(dev)) & 0x38) >> 3) 80 #define scd_phys(dev) (((minor(dev)) & 0x40) >> 6) 81 #define RAW_PART 2 82 83 /* flags */ 84 #define SCDOPEN 0x0001 /* device opened */ 85 #define SCDVALID 0x0002 /* parameters loaded */ 86 #define SCDINIT 0x0004 /* device is init'd */ 87 #define SCDPROBING 0x0020 /* probing */ 88 #define SCDTOC 0x0100 /* already read toc */ 89 #define SCDMBXBSY 0x0200 /* local mbx is busy */ 90 #define SCDSPINNING 0x0400 /* drive is spun up */ 91 92 #define SCD_S_BEGIN 0 93 #define SCD_S_BEGIN1 1 94 #define SCD_S_WAITSTAT 2 95 #define SCD_S_WAITFIFO 3 96 #define SCD_S_WAITSPIN 4 97 #define SCD_S_WAITREAD 5 98 #define SCD_S_WAITPARAM 6 99 100 #define RDELAY_WAIT 300 101 #define RDELAY_WAITREAD 300 102 103 #define SCDBLKSIZE 2048 104 105 #ifdef SCD_DEBUG 106 static int scd_debuglevel = SCD_DEBUG; 107 # define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;} 108 #else 109 # define XDEBUG(level, data) 110 #endif 111 112 struct scd_mbx { 113 short unit; 114 short port; 115 short retry; 116 short nblk; 117 int sz; 118 u_long skip; 119 struct buf *bp; 120 int p_offset; 121 short count; 122 }; 123 124 static struct scd_data { 125 int iobase; 126 char double_speed; 127 char *name; 128 short flags; 129 int blksize; 130 u_long disksize; 131 struct disklabel dlabel; 132 int openflag; 133 struct { 134 unsigned char adr :4; 135 unsigned char ctl :4; /* xcdplayer needs this */ 136 unsigned char start_msf[3]; 137 } toc[MAX_TRACKS]; 138 short first_track; 139 short last_track; 140 struct ioc_play_msf last_play; 141 142 short audio_status; 143 struct buf_queue_head head; /* head of buf queue */ 144 struct scd_mbx mbx; 145 #ifdef DEVFS 146 void *ra_devfs_token; 147 void *rc_devfs_token; 148 void *a_devfs_token; 149 void *c_devfs_token; 150 #endif 151 } scd_data[NSCD]; 152 153 /* prototypes */ 154 static void hsg2msf(int hsg, bcd_t *msf); 155 static int msf2hsg(bcd_t *msf); 156 157 static void process_attention(unsigned unit); 158 static __inline void write_control(unsigned port, unsigned data); 159 static int waitfor_status_bits(int unit, int bits_set, int bits_clear); 160 static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...); 161 static void init_drive(unsigned unit); 162 static int spin_up(unsigned unit); 163 static int read_toc(dev_t dev); 164 static int get_result(u_int unit, int result_len, u_char *result); 165 static void print_error(int unit, int errcode); 166 167 static void scd_start(int unit); 168 static void scd_doread(int state, struct scd_mbx *mbxin); 169 170 static int scd_eject(int unit); 171 static int scd_stop(int unit); 172 static int scd_pause(int unit); 173 static int scd_resume(int unit); 174 static int scd_playtracks(int unit, struct ioc_play_track *pt); 175 static int scd_playmsf(int unit, struct ioc_play_msf *msf); 176 static int scd_play(int unit, struct ioc_play_msf *msf); 177 static int scd_subchan(int unit, struct ioc_read_subchannel *sc); 178 static int read_subcode(int unit, struct sony_subchannel_position_data *sc); 179 180 /* for xcdplayer */ 181 static int scd_toc_header(int unit, struct ioc_toc_header *th); 182 static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te); 183 #define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */ 184 185 static int scd_probe(struct isa_device *dev); 186 static int scd_attach(struct isa_device *dev); 187 struct isa_driver scddriver = { scd_probe, scd_attach, "scd" }; 188 189 static d_open_t scdopen; 190 static d_close_t scdclose; 191 static d_ioctl_t scdioctl; 192 static d_strategy_t scdstrategy; 193 194 #define CDEV_MAJOR 45 195 #define BDEV_MAJOR 16 196 static struct cdevsw scd_cdevsw; 197 static struct bdevsw scd_bdevsw = 198 { scdopen, scdclose, scdstrategy, scdioctl, /*16*/ 199 nodump, nopsize, 0, "scd", &scd_cdevsw, -1 }; 200 201 int scd_attach(struct isa_device *dev) 202 { 203 int unit = dev->id_unit; 204 struct scd_data *cd = scd_data + unit; 205 206 cd->iobase = dev->id_iobase; /* Already set by probe, but ... */ 207 208 /* name filled in probe */ 209 printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name); 210 211 init_drive(dev->id_unit); 212 213 cd->flags = SCDINIT; 214 cd->audio_status = CD_AS_AUDIO_INVALID; 215 bufq_init(&cd->head); 216 217 #ifdef DEVFS 218 cd->ra_devfs_token = 219 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, 0), 220 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 221 "rscd%da", unit); 222 cd->rc_devfs_token = 223 devfs_add_devswf(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART), 224 DV_CHR, UID_ROOT, GID_OPERATOR, 0640, 225 "rscd%dc", unit); 226 cd->a_devfs_token = 227 devfs_add_devswf(&scd_bdevsw, dkmakeminor(unit, 0, 0), 228 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 229 "scd%da", unit); 230 cd->c_devfs_token = 231 devfs_add_devswf(&scd_bdevsw, dkmakeminor(unit, 0, RAW_PART), 232 DV_BLK, UID_ROOT, GID_OPERATOR, 0640, 233 "scd%dc", unit); 234 #endif 235 return 1; 236 } 237 238 static int 239 scdopen(dev_t dev, int flags, int fmt, struct proc *p) 240 { 241 int unit,part,phys; 242 int rc; 243 struct scd_data *cd; 244 245 unit = scd_unit(dev); 246 if (unit >= NSCD) 247 return ENXIO; 248 249 cd = scd_data + unit; 250 part = scd_part(dev); 251 phys = scd_phys(dev); 252 253 /* not initialized*/ 254 if (!(cd->flags & SCDINIT)) 255 return ENXIO; 256 257 /* invalidated in the meantime? mark all open part's invalid */ 258 if (cd->openflag) 259 return ENXIO; 260 261 XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS))); 262 263 if ((rc = spin_up(unit)) != 0) { 264 print_error(unit, rc); 265 return EIO; 266 } 267 if (!(cd->flags & SCDTOC)) { 268 int loop_count = 3; 269 270 while (loop_count-- > 0 && (rc = read_toc(dev)) != 0) { 271 if (rc == ERR_NOT_SPINNING) { 272 rc = spin_up(unit); 273 if (rc) { 274 print_error(unit, rc);\ 275 return EIO; 276 } 277 continue; 278 } 279 printf("scd%d: TOC read error 0x%x\n", unit, rc); 280 return EIO; 281 } 282 } 283 284 cd->openflag = 1; 285 cd->flags |= SCDVALID; 286 287 return 0; 288 } 289 290 static int 291 scdclose(dev_t dev, int flags, int fmt, struct proc *p) 292 { 293 int unit,part,phys; 294 struct scd_data *cd; 295 296 unit = scd_unit(dev); 297 if (unit >= NSCD) 298 return ENXIO; 299 300 cd = scd_data + unit; 301 part = scd_part(dev); 302 phys = scd_phys(dev); 303 304 if (!(cd->flags & SCDINIT) || !cd->openflag) 305 return ENXIO; 306 307 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) { 308 (void)send_cmd(unit, CMD_SPIN_DOWN, 0); 309 cd->flags &= ~SCDSPINNING; 310 } 311 312 313 /* close channel */ 314 cd->openflag = 0; 315 316 return 0; 317 } 318 319 static void 320 scdstrategy(struct buf *bp) 321 { 322 struct scd_data *cd; 323 int s; 324 int unit = scd_unit(bp->b_dev); 325 326 cd = scd_data + unit; 327 328 XDEBUG(2, ("scd%d: DEBUG: strategy: block=%ld, bcount=%ld\n", unit, bp->b_blkno, bp->b_bcount)); 329 330 if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) { 331 printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n", 332 unit, bp->b_blkno, bp->b_bcount); 333 bp->b_error = EINVAL; 334 bp->b_flags |= B_ERROR; 335 goto bad; 336 } 337 338 /* if device invalidated (e.g. media change, door open), error */ 339 if (!(cd->flags & SCDVALID)) { 340 printf("scd%d: media changed\n", unit); 341 bp->b_error = EIO; 342 goto bad; 343 } 344 345 /* read only */ 346 if (!(bp->b_flags & B_READ)) { 347 bp->b_error = EROFS; 348 goto bad; 349 } 350 351 /* no data to read */ 352 if (bp->b_bcount == 0) 353 goto done; 354 355 if (!(cd->flags & SCDTOC)) { 356 bp->b_error = EIO; 357 goto bad; 358 } 359 /* adjust transfer if necessary */ 360 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) 361 goto done; 362 363 bp->b_pblkno = bp->b_blkno; 364 bp->b_resid = 0; 365 366 /* queue it */ 367 s = splbio(); 368 bufqdisksort(&cd->head, bp); 369 splx(s); 370 371 /* now check whether we can perform processing */ 372 scd_start(unit); 373 return; 374 375 bad: 376 bp->b_flags |= B_ERROR; 377 done: 378 bp->b_resid = bp->b_bcount; 379 biodone(bp); 380 return; 381 } 382 383 static void 384 scd_start(int unit) 385 { 386 struct scd_data *cd = scd_data + unit; 387 struct buf *bp; 388 struct partition *p; 389 register s = splbio(); 390 391 if (cd->flags & SCDMBXBSY) { 392 splx(s); 393 return; 394 } 395 396 bp = bufq_first(&cd->head); 397 if (bp != 0) { 398 /* block found to process, dequeue */ 399 bufq_remove(&cd->head, bp); 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 } 420 421 static int 422 scdioctl(dev_t dev, int cmd, caddr_t addr, int flags, struct proc *p) 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 } 496 497 /*************************************************************** 498 * lower level of driver starts here 499 **************************************************************/ 500 501 static int 502 scd_playtracks(int unit, struct ioc_play_track *pt) 503 { 504 struct scd_data *cd = scd_data + unit; 505 struct ioc_play_msf msf; 506 int a = pt->start_track; 507 int z = pt->end_track; 508 int rc; 509 510 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 511 if (rc == -ERR_NOT_SPINNING) { 512 if (spin_up(unit) != 0) 513 return EIO; 514 rc = read_toc(unit); 515 } 516 if (rc != 0) { 517 print_error(unit, rc); 518 return EIO; 519 } 520 } 521 522 XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit, 523 a, pt->start_index, z, pt->end_index)); 524 525 if ( a < cd->first_track 526 || a > cd->last_track 527 || a > z 528 || z > cd->last_track) 529 return EINVAL; 530 531 bcopy(cd->toc[a].start_msf, &msf.start_m, 3); 532 hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m); 533 534 return scd_play(unit, &msf); 535 } 536 537 /* The start/end msf is expected to be in bin format */ 538 static int 539 scd_playmsf(int unit, struct ioc_play_msf *msfin) 540 { 541 struct ioc_play_msf msf; 542 543 msf.start_m = bin2bcd(msfin->start_m); 544 msf.start_s = bin2bcd(msfin->start_s); 545 msf.start_f = bin2bcd(msfin->start_f); 546 msf.end_m = bin2bcd(msfin->end_m); 547 msf.end_s = bin2bcd(msfin->end_s); 548 msf.end_f = bin2bcd(msfin->end_f); 549 550 return scd_play(unit, &msf); 551 } 552 553 /* The start/end msf is expected to be in bcd format */ 554 static int 555 scd_play(int unit, struct ioc_play_msf *msf) 556 { 557 struct scd_data *cd = scd_data + unit; 558 int i, rc; 559 560 XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit, 561 msf->start_m, msf->start_s, msf->start_f, 562 msf->end_m, msf->end_s, msf->end_f)); 563 564 for (i = 0; i < 2; i++) { 565 rc = send_cmd(unit, CMD_PLAY_AUDIO, 7, 566 0x03, 567 msf->start_m, msf->start_s, msf->start_f, 568 msf->end_m, msf->end_s, msf->end_f); 569 if (rc == -ERR_NOT_SPINNING) { 570 cd->flags &= ~SCDSPINNING; 571 if (spin_up(unit) != 0) 572 return EIO; 573 } else if (rc < 0) { 574 print_error(unit, rc); 575 return EIO; 576 } else { 577 break; 578 } 579 } 580 cd->audio_status = CD_AS_PLAY_IN_PROGRESS; 581 bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf)); 582 return 0; 583 } 584 585 static int 586 scd_stop(int unit) 587 { 588 struct scd_data *cd = scd_data + unit; 589 590 (void)send_cmd(unit, CMD_STOP_AUDIO, 0); 591 cd->audio_status = CD_AS_PLAY_COMPLETED; 592 return 0; 593 } 594 595 static int 596 scd_pause(int unit) 597 { 598 struct scd_data *cd = scd_data + unit; 599 struct sony_subchannel_position_data subpos; 600 601 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) 602 return EINVAL; 603 604 if (read_subcode(unit, &subpos) != 0) 605 return EIO; 606 607 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0) 608 return EIO; 609 610 cd->last_play.start_m = subpos.abs_msf[0]; 611 cd->last_play.start_s = subpos.abs_msf[1]; 612 cd->last_play.start_f = subpos.abs_msf[2]; 613 cd->audio_status = CD_AS_PLAY_PAUSED; 614 615 XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit, 616 cd->last_play.start_m, 617 cd->last_play.start_s, 618 cd->last_play.start_f)); 619 620 return 0; 621 } 622 623 static int 624 scd_resume(int unit) 625 { 626 if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED) 627 return EINVAL; 628 return scd_play(unit, &scd_data[unit].last_play); 629 } 630 631 static int 632 scd_eject(int unit) 633 { 634 struct scd_data *cd = scd_data + unit; 635 636 cd->audio_status = CD_AS_AUDIO_INVALID; 637 cd->flags &= ~(SCDSPINNING|SCDTOC); 638 639 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 || 640 send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 || 641 send_cmd(unit, CMD_EJECT, 0) != 0) 642 { 643 return EIO; 644 } 645 return 0; 646 } 647 648 static int 649 scd_subchan(int unit, struct ioc_read_subchannel *sc) 650 { 651 struct scd_data *cd = scd_data + unit; 652 struct sony_subchannel_position_data q; 653 struct cd_sub_channel_info data; 654 655 XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit, 656 sc->address_format, 657 sc->data_format)); 658 659 if (sc->address_format != CD_MSF_FORMAT) 660 return EINVAL; 661 662 if (sc->data_format != CD_CURRENT_POSITION) 663 return EINVAL; 664 665 if (read_subcode(unit, &q) != 0) 666 return EIO; 667 668 data.header.audio_status = cd->audio_status; 669 data.what.position.data_format = CD_MSF_FORMAT; 670 data.what.position.track_number = bcd2bin(q.track_number); 671 data.what.position.reladdr.msf.unused = 0; 672 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]); 673 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]); 674 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]); 675 data.what.position.absaddr.msf.unused = 0; 676 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]); 677 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]); 678 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]); 679 680 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0) 681 return EFAULT; 682 return 0; 683 } 684 685 int 686 scd_probe(struct isa_device *dev) 687 { 688 struct sony_drive_configuration drive_config; 689 int unit = dev->id_unit; 690 int rc; 691 static char namebuf[8+16+8+3]; 692 char *s = namebuf; 693 int loop_count = 0; 694 695 scd_data[unit].flags = SCDPROBING; 696 scd_data[unit].iobase = dev->id_iobase; 697 698 bzero(&drive_config, sizeof(drive_config)); 699 700 again: 701 /* Reset drive */ 702 write_control(dev->id_iobase, CBIT_RESET_DRIVE); 703 704 /* Calm down */ 705 DELAY(300000); 706 707 /* Only the ATTENTION bit may be set */ 708 if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) { 709 XDEBUG(1, ("scd: too many bits set. probe failed.\n")); 710 return 0; 711 } 712 rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0); 713 if (rc != sizeof(drive_config)) { 714 /* Sometimes if the drive is playing audio I get */ 715 /* the bad result 82. Fix by repeating the reset */ 716 if (rc > 0 && loop_count++ == 0) 717 goto again; 718 return 0; 719 } 720 if (get_result(unit, rc, (u_char *)&drive_config) != 0) 721 return 0; 722 723 bcopy(drive_config.vendor, namebuf, 8); 724 s = namebuf+8; 725 while (*(s-1) == ' ') /* Strip trailing spaces */ 726 s--; 727 *s++ = ' '; 728 bcopy(drive_config.product, s, 16); 729 s += 16; 730 while (*(s-1) == ' ') 731 s--; 732 *s++ = ' '; 733 bcopy(drive_config.revision, s, 8); 734 s += 8; 735 while (*(s-1) == ' ') 736 s--; 737 *s = 0; 738 739 scd_data[unit].name = namebuf; 740 741 if (drive_config.config & 0x10) 742 scd_data[unit].double_speed = 1; 743 else 744 scd_data[unit].double_speed = 0; 745 746 return 4; 747 } 748 749 static int 750 read_subcode(int unit, struct sony_subchannel_position_data *sc) 751 { 752 int rc; 753 754 rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0); 755 if (rc < 0 || rc < sizeof(*sc)) 756 return EIO; 757 if (get_result(unit, rc, (u_char *)sc) != 0) 758 return EIO; 759 return 0; 760 } 761 762 /* State machine copied from mcd.c */ 763 764 /* This (and the code in mcd.c) will not work with more than one drive */ 765 /* because there is only one mbxsave below. Should fix that some day. */ 766 /* (mbxsave & state should probably be included in the scd_data struct and */ 767 /* the unit number used as first argument to scd_doread().) /Micke */ 768 769 /* state machine to process read requests 770 * initialize with SCD_S_BEGIN: reset state machine 771 * SCD_S_WAITSTAT: wait for ready (!busy) 772 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning) 773 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command. 774 * SCD_S_WAITREAD: wait for data ready, read data 775 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read. 776 */ 777 778 static struct scd_mbx *mbxsave; 779 780 static void 781 scd_doread(int state, struct scd_mbx *mbxin) 782 { 783 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin; 784 int unit = mbx->unit; 785 int port = mbx->port; 786 struct buf *bp = mbx->bp; 787 struct scd_data *cd = scd_data + unit; 788 int reg,i; 789 int blknum; 790 caddr_t addr; 791 static char sdata[3]; /* Must be preserved between calls to this function */ 792 793 loop: 794 switch (state) { 795 case SCD_S_BEGIN: 796 mbx = mbxsave = mbxin; 797 798 case SCD_S_BEGIN1: 799 /* get status */ 800 mbx->count = RDELAY_WAIT; 801 802 process_attention(unit); 803 goto trystat; 804 805 case SCD_S_WAITSTAT: 806 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSTAT); 807 if (mbx->count-- <= 0) { 808 printf("scd%d: timeout. drive busy.\n",unit); 809 goto harderr; 810 } 811 812 trystat: 813 if (IS_BUSY(port)) { 814 timeout((timeout_func_t)scd_doread, 815 (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */ 816 return; 817 } 818 819 process_attention(unit); 820 821 /* reject, if audio active */ 822 if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) { 823 printf("scd%d: audio is active\n",unit); 824 goto harderr; 825 } 826 827 mbx->sz = cd->blksize; 828 829 /* for first block */ 830 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz; 831 mbx->skip = 0; 832 833 nextblock: 834 if (!(cd->flags & SCDVALID)) 835 goto changed; 836 837 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE)) 838 + mbx->p_offset + mbx->skip/mbx->sz; 839 840 XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum)); 841 842 /* build parameter block */ 843 hsg2msf(blknum, sdata); 844 845 write_control(port, CBIT_RESULT_READY_CLEAR); 846 write_control(port, CBIT_RPARAM_CLEAR); 847 write_control(port, CBIT_DATA_READY_CLEAR); 848 849 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 850 goto writeparam; 851 852 mbx->count = 100; 853 timeout((timeout_func_t)scd_doread, 854 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 855 return; 856 857 case SCD_S_WAITSPIN: 858 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITSPIN); 859 if (mbx->count-- <= 0) { 860 printf("scd%d: timeout waiting for drive to spin up.\n", unit); 861 goto harderr; 862 } 863 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 864 timeout((timeout_func_t)scd_doread, 865 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 866 return; 867 } 868 write_control(port, CBIT_RESULT_READY_CLEAR); 869 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 870 case 0x20: 871 i = inb(port+IREG_RESULT); 872 print_error(unit, i); 873 goto harderr; 874 case 0x00: 875 (void)inb(port+IREG_RESULT); 876 cd->flags |= SCDSPINNING; 877 break; 878 } 879 XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit)); 880 881 state = SCD_S_BEGIN1; 882 goto loop; 883 884 case SCD_S_WAITFIFO: 885 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITFIFO); 886 if (mbx->count-- <= 0) { 887 printf("scd%d: timeout. write param not ready.\n",unit); 888 goto harderr; 889 } 890 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 891 timeout((timeout_func_t)scd_doread, 892 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */ 893 return; 894 } 895 XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100)); 896 897 writeparam: 898 /* The reason this test isn't done 'till now is to make sure */ 899 /* that it is ok to send the SPIN_UP cmd below. */ 900 if (!(cd->flags & SCDSPINNING)) { 901 XDEBUG(1, ("scd%d: spinning up drive ...\n", unit)); 902 outb(port+OREG_COMMAND, CMD_SPIN_UP); 903 mbx->count = 300; 904 timeout((timeout_func_t)scd_doread, 905 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */ 906 return; 907 } 908 909 reg = port + OREG_WPARAMS; 910 /* send the read command */ 911 disable_intr(); 912 outb(reg, sdata[0]); 913 outb(reg, sdata[1]); 914 outb(reg, sdata[2]); 915 outb(reg, 0); 916 outb(reg, 0); 917 outb(reg, 1); 918 outb(port+OREG_COMMAND, CMD_READ); 919 enable_intr(); 920 921 mbx->count = RDELAY_WAITREAD; 922 for (i = 0; i < 50; i++) { 923 if (STATUS_BIT(port, SBIT_DATA_READY)) 924 goto got_data; 925 DELAY(100); 926 } 927 928 timeout((timeout_func_t)scd_doread, 929 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 930 return; 931 932 case SCD_S_WAITREAD: 933 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITREAD); 934 if (mbx->count-- <= 0) { 935 if (STATUS_BIT(port, SBIT_RESULT_READY)) 936 goto got_param; 937 printf("scd%d: timeout while reading data\n",unit); 938 goto readerr; 939 } 940 if (!STATUS_BIT(port, SBIT_DATA_READY)) { 941 process_attention(unit); 942 if (!(cd->flags & SCDVALID)) 943 goto changed; 944 timeout((timeout_func_t)scd_doread, 945 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */ 946 return; 947 } 948 XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD)); 949 950 got_data: 951 /* data is ready */ 952 addr = bp->b_un.b_addr + mbx->skip; 953 write_control(port, CBIT_DATA_READY_CLEAR); 954 insb(port+IREG_DATA, addr, mbx->sz); 955 956 mbx->count = 100; 957 for (i = 0; i < 20; i++) { 958 if (STATUS_BIT(port, SBIT_RESULT_READY)) 959 goto waitfor_param; 960 DELAY(100); 961 } 962 goto waitfor_param; 963 964 case SCD_S_WAITPARAM: 965 untimeout((timeout_func_t)scd_doread,(caddr_t)SCD_S_WAITPARAM); 966 if (mbx->count-- <= 0) { 967 printf("scd%d: timeout waiting for params\n",unit); 968 goto readerr; 969 } 970 971 waitfor_param: 972 if (!STATUS_BIT(port, SBIT_RESULT_READY)) { 973 timeout((timeout_func_t)scd_doread, 974 (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */ 975 return; 976 } 977 #if SCD_DEBUG 978 if (mbx->count < 100 && scd_debuglevel > 0) 979 printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100); 980 #endif 981 982 got_param: 983 write_control(port, CBIT_RESULT_READY_CLEAR); 984 switch ((i = inb(port+IREG_RESULT)) & 0xf0) { 985 case 0x50: 986 switch (i) { 987 case ERR_FATAL_READ_ERROR1: 988 case ERR_FATAL_READ_ERROR2: 989 printf("scd%d: unrecoverable read error 0x%x\n", unit, i); 990 goto harderr; 991 } 992 break; 993 case 0x20: 994 i = inb(port+IREG_RESULT); 995 switch (i) { 996 case ERR_NOT_SPINNING: 997 XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit)); 998 if (mbx->retry-- > 0) { 999 state = SCD_S_BEGIN1; 1000 cd->flags &= ~SCDSPINNING; 1001 goto loop; 1002 } 1003 goto harderr; 1004 default: 1005 print_error(unit, i); 1006 goto readerr; 1007 } 1008 case 0x00: 1009 i = inb(port+IREG_RESULT); 1010 break; 1011 } 1012 1013 if (--mbx->nblk > 0) { 1014 mbx->skip += mbx->sz; 1015 goto nextblock; 1016 } 1017 1018 /* return buffer */ 1019 bp->b_resid = 0; 1020 biodone(bp); 1021 1022 cd->flags &= ~SCDMBXBSY; 1023 scd_start(mbx->unit); 1024 return; 1025 } 1026 1027 readerr: 1028 if (mbx->retry-- > 0) { 1029 printf("scd%d: retrying ...\n",unit); 1030 state = SCD_S_BEGIN1; 1031 goto loop; 1032 } 1033 harderr: 1034 /* invalidate the buffer */ 1035 bp->b_error = EIO; 1036 bp->b_flags |= B_ERROR; 1037 bp->b_resid = bp->b_bcount; 1038 biodone(bp); 1039 1040 cd->flags &= ~SCDMBXBSY; 1041 scd_start(mbx->unit); 1042 return; 1043 1044 changed: 1045 printf("scd%d: media changed\n", unit); 1046 goto harderr; 1047 } 1048 1049 static void 1050 hsg2msf(int hsg, bcd_t *msf) 1051 { 1052 hsg += 150; 1053 M_msf(msf) = bin2bcd(hsg / 4500); 1054 hsg %= 4500; 1055 S_msf(msf) = bin2bcd(hsg / 75); 1056 F_msf(msf) = bin2bcd(hsg % 75); 1057 } 1058 1059 static int 1060 msf2hsg(bcd_t *msf) 1061 { 1062 return (bcd2bin(M_msf(msf)) * 60 + 1063 bcd2bin(S_msf(msf))) * 75 + 1064 bcd2bin(F_msf(msf)) - 150; 1065 } 1066 1067 static void 1068 process_attention(unsigned unit) 1069 { 1070 unsigned port = scd_data[unit].iobase; 1071 unsigned char code; 1072 int count = 0; 1073 1074 while (IS_ATTENTION(port) && count++ < 30) { 1075 write_control(port, CBIT_ATTENTION_CLEAR); 1076 code = inb(port+IREG_RESULT); 1077 1078 #if SCD_DEBUG 1079 if (scd_debuglevel > 0) { 1080 if (count == 1) 1081 printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code); 1082 else 1083 printf(",0x%x", code); 1084 } 1085 #endif 1086 1087 switch (code) { 1088 case ATTEN_SPIN_DOWN: 1089 scd_data[unit].flags &= ~SCDSPINNING; 1090 break; 1091 1092 case ATTEN_SPIN_UP_DONE: 1093 scd_data[unit].flags |= SCDSPINNING; 1094 break; 1095 1096 case ATTEN_AUDIO_DONE: 1097 scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED; 1098 break; 1099 1100 case ATTEN_DRIVE_LOADED: 1101 scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID); 1102 scd_data[unit].audio_status = CD_AS_AUDIO_INVALID; 1103 break; 1104 1105 case ATTEN_EJECT_PUSHED: 1106 scd_data[unit].flags &= ~SCDVALID; 1107 break; 1108 } 1109 DELAY(100); 1110 } 1111 #if SCD_DEBUG 1112 if (scd_debuglevel > 0 && count > 0) 1113 printf("\n"); 1114 #endif 1115 } 1116 1117 /* Returns 0 OR sony error code */ 1118 static int 1119 spin_up(unsigned unit) 1120 { 1121 unsigned char res_reg[12]; 1122 unsigned int res_size; 1123 int rc; 1124 int loop_count = 0; 1125 1126 again: 1127 rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size); 1128 if (rc != 0) { 1129 XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc)); 1130 return rc; 1131 } 1132 1133 if (!(scd_data[unit].flags & SCDTOC)) { 1134 rc = send_cmd(unit, CMD_READ_TOC, 0); 1135 if (rc == ERR_NOT_SPINNING) { 1136 if (loop_count++ < 3) 1137 goto again; 1138 return rc; 1139 } 1140 if (rc != 0) 1141 return rc; 1142 } 1143 1144 scd_data[unit].flags |= SCDSPINNING; 1145 1146 return 0; 1147 } 1148 1149 static struct sony_tracklist * 1150 get_tl(struct sony_toc *toc, int size) 1151 { 1152 struct sony_tracklist *tl = &toc->tracks[0]; 1153 1154 if (tl->track != 0xb0) 1155 return tl; 1156 (char *)tl += 9; 1157 if (tl->track != 0xb1) 1158 return tl; 1159 (char *)tl += 9; 1160 if (tl->track != 0xb2) 1161 return tl; 1162 (char *)tl += 9; 1163 if (tl->track != 0xb3) 1164 return tl; 1165 (char *)tl += 9; 1166 if (tl->track != 0xb4) 1167 return tl; 1168 (char *)tl += 9; 1169 if (tl->track != 0xc0) 1170 return tl; 1171 (char *)tl += 9; 1172 return tl; 1173 } 1174 1175 static int 1176 read_toc(dev_t dev) 1177 { 1178 unsigned unit; 1179 struct scd_data *cd; 1180 unsigned part = 0; /* For now ... */ 1181 struct sony_toc toc; 1182 struct sony_tracklist *tl; 1183 int rc, i, j; 1184 u_long first, last; 1185 1186 unit = scd_unit(dev); 1187 cd = scd_data + unit; 1188 1189 rc = send_cmd(unit, CMD_GET_TOC, 1, part+1); 1190 if (rc < 0) 1191 return rc; 1192 if (rc > sizeof(toc)) { 1193 printf("scd%d: program error: toc too large (%d)\n", unit, rc); 1194 return EIO; 1195 } 1196 if (get_result(unit, rc, (u_char *)&toc) != 0) 1197 return EIO; 1198 1199 XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc))); 1200 1201 tl = get_tl(&toc, rc); 1202 first = msf2hsg(tl->start_msf); 1203 last = msf2hsg(toc.lead_out_start_msf); 1204 cd->blksize = SCDBLKSIZE; 1205 cd->disksize = last*cd->blksize/DEV_BSIZE; 1206 1207 XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit, 1208 first, last)); 1209 1210 cd->first_track = bcd2bin(toc.first_track); 1211 cd->last_track = bcd2bin(toc.last_track); 1212 if (cd->last_track > (MAX_TRACKS-2)) 1213 cd->last_track = MAX_TRACKS-2; 1214 for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) { 1215 cd->toc[i].adr = tl[j].adr; 1216 cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */ 1217 bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3); 1218 #ifdef SCD_DEBUG 1219 if (scd_debuglevel > 0) { 1220 if ((j % 3) == 0) 1221 printf("\nscd%d: tracks ", unit); 1222 printf("[%03d: %2d %2d %2d] ", i, 1223 bcd2bin(cd->toc[i].start_msf[0]), 1224 bcd2bin(cd->toc[i].start_msf[1]), 1225 bcd2bin(cd->toc[i].start_msf[2])); 1226 } 1227 #endif 1228 } 1229 bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3); 1230 #ifdef SCD_DEBUG 1231 if (scd_debuglevel > 0) { 1232 i = cd->last_track+1; 1233 printf("[END: %2d %2d %2d]\n", 1234 bcd2bin(cd->toc[i].start_msf[0]), 1235 bcd2bin(cd->toc[i].start_msf[1]), 1236 bcd2bin(cd->toc[i].start_msf[2])); 1237 } 1238 #endif 1239 1240 bzero(&cd->dlabel,sizeof(struct disklabel)); 1241 /* filled with spaces first */ 1242 strncpy(cd->dlabel.d_typename," ", 1243 sizeof(cd->dlabel.d_typename)); 1244 strncpy(cd->dlabel.d_typename, cd->name, 1245 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1)); 1246 strncpy(cd->dlabel.d_packname,"unknown ", 1247 sizeof(cd->dlabel.d_packname)); 1248 cd->dlabel.d_secsize = cd->blksize; 1249 cd->dlabel.d_nsectors = 100; 1250 cd->dlabel.d_ntracks = 1; 1251 cd->dlabel.d_ncylinders = (cd->disksize/100)+1; 1252 cd->dlabel.d_secpercyl = 100; 1253 cd->dlabel.d_secperunit = cd->disksize; 1254 cd->dlabel.d_rpm = 300; 1255 cd->dlabel.d_interleave = 1; 1256 cd->dlabel.d_flags = D_REMOVABLE; 1257 cd->dlabel.d_npartitions= 1; 1258 cd->dlabel.d_partitions[0].p_offset = 0; 1259 cd->dlabel.d_partitions[0].p_size = cd->disksize; 1260 cd->dlabel.d_partitions[0].p_fstype = 9; 1261 cd->dlabel.d_magic = DISKMAGIC; 1262 cd->dlabel.d_magic2 = DISKMAGIC; 1263 cd->dlabel.d_checksum = dkcksum(&cd->dlabel); 1264 1265 cd->flags |= SCDTOC; 1266 1267 return 0; 1268 } 1269 1270 static __inline void 1271 write_control(unsigned port, unsigned data) 1272 { 1273 outb(port + OREG_CONTROL, data); 1274 } 1275 1276 static void 1277 init_drive(unsigned unit) 1278 { 1279 int rc; 1280 1281 rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2, 1282 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0)); 1283 if (rc != 0) 1284 printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc); 1285 } 1286 1287 /* Returns 0 or errno */ 1288 static int 1289 get_result(u_int unit, int result_len, u_char *result) 1290 { 1291 unsigned int port = scd_data[unit].iobase; 1292 unsigned int res_reg = port + IREG_RESULT; 1293 int loop_index = 2; /* send_cmd() reads two bytes ... */ 1294 1295 XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len)); 1296 1297 while (result_len-- > 0) { 1298 if (loop_index++ >= 10) { 1299 loop_index = 1; 1300 if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0)) 1301 return EIO; 1302 write_control(port, CBIT_RESULT_READY_CLEAR); 1303 } 1304 if (result) 1305 *result++ = inb(res_reg); 1306 else 1307 (void)inb(res_reg); 1308 } 1309 return 0; 1310 } 1311 1312 /* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */ 1313 static int 1314 send_cmd(u_int unit, u_char cmd, u_int nargs, ...) 1315 { 1316 va_list ap; 1317 u_int port = scd_data[unit].iobase; 1318 u_int reg; 1319 u_char c; 1320 int rc; 1321 int i; 1322 1323 if (waitfor_status_bits(unit, 0, SBIT_BUSY)) { 1324 printf("scd%d: drive busy\n", unit); 1325 return -0x100; 1326 } 1327 1328 XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs)); 1329 1330 write_control(port, CBIT_RESULT_READY_CLEAR); 1331 write_control(port, CBIT_RPARAM_CLEAR); 1332 1333 for (i = 0; i < 100; i++) 1334 if (FSTATUS_BIT(port, FBIT_WPARAM_READY)) 1335 break; 1336 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) { 1337 XDEBUG(1, ("\nscd%d: wparam timeout\n", unit)); 1338 return -EIO; 1339 } 1340 1341 va_start(ap, nargs); 1342 reg = port + OREG_WPARAMS; 1343 for (i = 0; i < nargs; i++) { 1344 c = (u_char)va_arg(ap, int); 1345 outb(reg, c); 1346 XDEBUG(1, (",{0x%x}", c)); 1347 } 1348 va_end(ap); 1349 XDEBUG(1, ("\n")); 1350 1351 outb(port+OREG_COMMAND, cmd); 1352 1353 rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY); 1354 if (rc) 1355 return -0x100; 1356 1357 reg = port + IREG_RESULT; 1358 write_control(port, CBIT_RESULT_READY_CLEAR); 1359 switch ((rc = inb(reg)) & 0xf0) { 1360 case 0x20: 1361 rc = inb(reg); 1362 /* FALL TROUGH */ 1363 case 0x50: 1364 XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc)); 1365 return -rc; 1366 case 0x00: 1367 default: 1368 rc = inb(reg); 1369 XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc)); 1370 return rc; 1371 } 1372 } 1373 1374 static void 1375 print_error(int unit, int errcode) 1376 { 1377 switch (errcode) { 1378 case -ERR_CD_NOT_LOADED: 1379 printf("scd%d: door is open\n", unit); 1380 break; 1381 case -ERR_NO_CD_INSIDE: 1382 printf("scd%d: no cd inside\n", unit); 1383 break; 1384 default: 1385 if (errcode == -0x100 || errcode > 0) 1386 printf("scd%d: device timeout\n", unit); 1387 else 1388 printf("scd%d: unexpected error 0x%x\n", unit, -errcode); 1389 break; 1390 } 1391 } 1392 1393 /* Returns 0 or errno value */ 1394 static int 1395 waitfor_status_bits(int unit, int bits_set, int bits_clear) 1396 { 1397 u_int port = scd_data[unit].iobase; 1398 u_int flags = scd_data[unit].flags; 1399 u_int reg = port + IREG_STATUS; 1400 u_int max_loop; 1401 u_char c = 0; 1402 1403 if (flags & SCDPROBING) { 1404 max_loop = 0; 1405 while (max_loop++ < 1000) { 1406 c = inb(reg); 1407 if (c == 0xff) 1408 return EIO; 1409 if (c & SBIT_ATTENTION) { 1410 process_attention(unit); 1411 continue; 1412 } 1413 if ((c & bits_set) == bits_set && 1414 (c & bits_clear) == 0) 1415 { 1416 break; 1417 } 1418 DELAY(10000); 1419 } 1420 } else { 1421 max_loop = 100; 1422 while (max_loop-- > 0) { 1423 c = inb(reg); 1424 if (c & SBIT_ATTENTION) { 1425 process_attention(unit); 1426 continue; 1427 } 1428 if ((c & bits_set) == bits_set && 1429 (c & bits_clear) == 0) 1430 { 1431 break; 1432 } 1433 tsleep(waitfor_status_bits, PZERO - 1, "waitfor", hz/10); 1434 } 1435 } 1436 if ((c & bits_set) == bits_set && 1437 (c & bits_clear) == 0) 1438 { 1439 return 0; 1440 } 1441 #ifdef SCD_DEBUG 1442 if (scd_debuglevel > 0) 1443 printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear); 1444 else 1445 #endif 1446 printf("scd%d: timeout.\n", unit); 1447 return EIO; 1448 } 1449 1450 /* these two routines for xcdplayer - "borrowed" from mcd.c */ 1451 static int 1452 scd_toc_header (int unit, struct ioc_toc_header* th) 1453 { 1454 struct scd_data *cd = scd_data + unit; 1455 int rc; 1456 1457 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1458 print_error(unit, rc); 1459 return EIO; 1460 } 1461 1462 th->starting_track = cd->first_track; 1463 th->ending_track = cd->last_track; 1464 th->len = 0; /* not used */ 1465 1466 return 0; 1467 } 1468 1469 static int 1470 scd_toc_entrys (int unit, struct ioc_read_toc_entry *te) 1471 { 1472 struct scd_data *cd = scd_data + unit; 1473 struct cd_toc_entry toc_entry; 1474 int rc, i, len = te->data_len; 1475 1476 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) { 1477 print_error(unit, rc); 1478 return EIO; 1479 } 1480 1481 /* find the toc to copy*/ 1482 i = te->starting_track; 1483 if (i == SCD_LASTPLUS1) 1484 i = cd->last_track + 1; 1485 1486 /* verify starting track */ 1487 if (i < cd->first_track || i > cd->last_track+1) 1488 return EINVAL; 1489 1490 /* valid length ? */ 1491 if (len < sizeof(struct cd_toc_entry) 1492 || (len % sizeof(struct cd_toc_entry)) != 0) 1493 return EINVAL; 1494 1495 /* copy the toc data */ 1496 toc_entry.control = cd->toc[i].ctl; 1497 toc_entry.addr_type = te->address_format; 1498 toc_entry.track = i; 1499 if (te->address_format == CD_MSF_FORMAT) { 1500 toc_entry.addr.msf.unused = 0; 1501 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]); 1502 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]); 1503 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]); 1504 } 1505 1506 /* copy the data back */ 1507 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0) 1508 return EFAULT; 1509 1510 return 0; 1511 } 1512 1513 1514 static scd_devsw_installed = 0; 1515 1516 static void scd_drvinit(void *unused) 1517 { 1518 1519 if( ! scd_devsw_installed ) { 1520 bdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &scd_bdevsw); 1521 scd_devsw_installed = 1; 1522 } 1523 } 1524 1525 SYSINIT(scddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,scd_drvinit,NULL) 1526 1527 1528 #endif /* NSCD > 0 */
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