LINT build test. Aggregated source code adjustments to bring most of the
[dragonfly.git] / sys / dev / disk / scd / scd.c
CommitLineData
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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 1.54 2000/01/29 16:00:30 peter Exp $ */
7b95be2a 45/* $DragonFly: src/sys/dev/disk/scd/Attic/scd.c,v 1.5 2003/07/21 07:57:44 dillon Exp $ */
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46
47/* Please send any comments to micke@dynas.se */
48
49#define SCD_DEBUG 0
50
51#include "scd.h"
52#include <sys/param.h>
53#include <sys/systm.h>
54#include <sys/conf.h>
55#include <sys/buf.h>
56#include <sys/cdio.h>
57#include <sys/disklabel.h>
58#include <sys/kernel.h>
59
60#include <machine/clock.h>
61#include <machine/stdarg.h>
62
63#include <i386/isa/isa_device.h>
64#include <i386/isa/scdreg.h>
65
66
67#define scd_part(dev) ((minor(dev)) & 7)
68#define scd_unit(dev) (((minor(dev)) & 0x38) >> 3)
69#define scd_phys(dev) (((minor(dev)) & 0x40) >> 6)
70#define RAW_PART 2
71
72/* flags */
73#define SCDOPEN 0x0001 /* device opened */
74#define SCDVALID 0x0002 /* parameters loaded */
75#define SCDINIT 0x0004 /* device is init'd */
76#define SCDPROBING 0x0020 /* probing */
77#define SCDTOC 0x0100 /* already read toc */
78#define SCDMBXBSY 0x0200 /* local mbx is busy */
79#define SCDSPINNING 0x0400 /* drive is spun up */
80
81#define SCD_S_BEGIN 0
82#define SCD_S_BEGIN1 1
83#define SCD_S_WAITSTAT 2
84#define SCD_S_WAITFIFO 3
85#define SCD_S_WAITSPIN 4
86#define SCD_S_WAITREAD 5
87#define SCD_S_WAITPARAM 6
88
89#define RDELAY_WAIT 300
90#define RDELAY_WAITREAD 300
91
92#define SCDBLKSIZE 2048
93
94#ifdef SCD_DEBUG
95 static int scd_debuglevel = SCD_DEBUG;
96# define XDEBUG(level, data) {if (scd_debuglevel >= level) printf data;}
97#else
98# define XDEBUG(level, data)
99#endif
100
101struct scd_mbx {
102 short unit;
103 short port;
104 short retry;
105 short nblk;
106 int sz;
107 u_long skip;
108 struct buf *bp;
109 int p_offset;
110 short count;
111};
112
113static struct scd_data {
114 int iobase;
115 char double_speed;
116 char *name;
117 short flags;
118 int blksize;
119 u_long disksize;
120 struct disklabel dlabel;
121 int openflag;
122 struct {
123 unsigned int adr :4;
124 unsigned int ctl :4; /* xcdplayer needs this */
125 unsigned char start_msf[3];
126 } toc[MAX_TRACKS];
127 short first_track;
128 short last_track;
129 struct ioc_play_msf last_play;
130
131 short audio_status;
132 struct buf_queue_head head; /* head of buf queue */
133 struct scd_mbx mbx;
134} scd_data[NSCD];
135
136/* prototypes */
137static void hsg2msf(int hsg, bcd_t *msf);
138static int msf2hsg(bcd_t *msf);
139
140static void process_attention(unsigned unit);
141static __inline void write_control(unsigned port, unsigned data);
142static int waitfor_status_bits(int unit, int bits_set, int bits_clear);
143static int send_cmd(u_int unit, u_char cmd, u_int nargs, ...);
144static void init_drive(unsigned unit);
145static int spin_up(unsigned unit);
146static int read_toc(unsigned unit);
147static int get_result(u_int unit, int result_len, u_char *result);
148static void print_error(int unit, int errcode);
149
150static void scd_start(int unit);
151static timeout_t scd_timeout;
152static void scd_doread(int state, struct scd_mbx *mbxin);
153
154static int scd_eject(int unit);
155static int scd_stop(int unit);
156static int scd_pause(int unit);
157static int scd_resume(int unit);
158static int scd_playtracks(int unit, struct ioc_play_track *pt);
159static int scd_playmsf(int unit, struct ioc_play_msf *msf);
160static int scd_play(int unit, struct ioc_play_msf *msf);
161static int scd_subchan(int unit, struct ioc_read_subchannel *sc);
162static int read_subcode(int unit, struct sony_subchannel_position_data *sc);
163
164/* for xcdplayer */
165static int scd_toc_header(int unit, struct ioc_toc_header *th);
166static int scd_toc_entrys(int unit, struct ioc_read_toc_entry *te);
167static int scd_toc_entry(int unit, struct ioc_read_toc_single_entry *te);
168#define SCD_LASTPLUS1 170 /* don't ask, xcdplayer passes this in */
169
170static int scd_probe(struct isa_device *dev);
171static int scd_attach(struct isa_device *dev);
172struct isa_driver scddriver = { scd_probe, scd_attach, "scd" };
173
174/* For canceling our timeout */
175static struct callout_handle tohandle = CALLOUT_HANDLE_INITIALIZER(&tohanle);
176
177static d_open_t scdopen;
178static d_close_t scdclose;
179static d_ioctl_t scdioctl;
180static d_strategy_t scdstrategy;
181
182#define CDEV_MAJOR 45
984263bc 183static struct cdevsw scd_cdevsw = {
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184 /* name */ "scd",
185 /* maj */ CDEV_MAJOR,
186 /* flags */ D_DISK,
187 /* port */ NULL,
188 /* autoq */ 0,
189
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190 /* open */ scdopen,
191 /* close */ scdclose,
192 /* read */ physread,
193 /* write */ nowrite,
194 /* ioctl */ scdioctl,
195 /* poll */ nopoll,
196 /* mmap */ nommap,
197 /* strategy */ scdstrategy,
984263bc 198 /* dump */ nodump,
fabb8ceb 199 /* psize */ nopsize
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200};
201
202
203static int
204scd_attach(struct isa_device *dev)
205{
206 int unit = dev->id_unit;
207 struct scd_data *cd = scd_data + unit;
208
209 cd->iobase = dev->id_iobase; /* Already set by probe, but ... */
210
211 /* name filled in probe */
212 printf("scd%d: <%s>\n", dev->id_unit, scd_data[dev->id_unit].name);
213
214 init_drive(dev->id_unit);
215
216 cd->flags = SCDINIT;
217 cd->audio_status = CD_AS_AUDIO_INVALID;
218 bufq_init(&cd->head);
219
220 make_dev(&scd_cdevsw, dkmakeminor(unit, 0, 0),
221 UID_ROOT, GID_OPERATOR, 0640, "rscd%da", unit);
222 make_dev(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART),
223 UID_ROOT, GID_OPERATOR, 0640, "rscd%dc", unit);
224 make_dev(&scd_cdevsw, dkmakeminor(unit, 0, 0),
225 UID_ROOT, GID_OPERATOR, 0640, "scd%da", unit);
226 make_dev(&scd_cdevsw, dkmakeminor(unit, 0, RAW_PART),
227 UID_ROOT, GID_OPERATOR, 0640, "scd%dc", unit);
228 return 1;
229}
230
231static int
7b95be2a 232scdopen(dev_t dev, int flags, int fmt, struct thread *td)
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233{
234 int unit,part,phys;
235 int rc;
236 struct scd_data *cd;
237
238 unit = scd_unit(dev);
239 if (unit >= NSCD)
240 return ENXIO;
241
242 cd = scd_data + unit;
243 part = scd_part(dev);
244 phys = scd_phys(dev);
245
246 /* not initialized*/
247 if (!(cd->flags & SCDINIT))
248 return ENXIO;
249
250 /* invalidated in the meantime? mark all open part's invalid */
251 if (cd->openflag)
252 return ENXIO;
253
254 XDEBUG(1,("scd%d: DEBUG: status = 0x%x\n", unit, inb(cd->iobase+IREG_STATUS)));
255
256 if ((rc = spin_up(unit)) != 0) {
257 print_error(unit, rc);
258 return EIO;
259 }
260 if (!(cd->flags & SCDTOC)) {
261 int loop_count = 3;
262
263 while (loop_count-- > 0 && (rc = read_toc(unit)) != 0) {
264 if (rc == ERR_NOT_SPINNING) {
265 rc = spin_up(unit);
266 if (rc) {
267 print_error(unit, rc);\
268 return EIO;
269 }
270 continue;
271 }
272 printf("scd%d: TOC read error 0x%x\n", unit, rc);
273 return EIO;
274 }
275 }
276
277 dev->si_bsize_phys = cd->blksize;
278
279 cd->openflag = 1;
280 cd->flags |= SCDVALID;
281
282 return 0;
283}
284
285static int
7b95be2a 286scdclose(dev_t dev, int flags, int fmt, struct thread *td)
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287{
288 int unit,part,phys;
289 struct scd_data *cd;
290
291 unit = scd_unit(dev);
292 if (unit >= NSCD)
293 return ENXIO;
294
295 cd = scd_data + unit;
296 part = scd_part(dev);
297 phys = scd_phys(dev);
298
299 if (!(cd->flags & SCDINIT) || !cd->openflag)
300 return ENXIO;
301
302 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS) {
303 (void)send_cmd(unit, CMD_SPIN_DOWN, 0);
304 cd->flags &= ~SCDSPINNING;
305 }
306
307
308 /* close channel */
309 cd->openflag = 0;
310
311 return 0;
312}
313
314static void
315scdstrategy(struct buf *bp)
316{
317 struct scd_data *cd;
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",
324 unit, (long)bp->b_blkno, bp->b_bcount));
325
326 if (unit >= NSCD || bp->b_blkno < 0 || (bp->b_bcount % SCDBLKSIZE)) {
327 printf("scd%d: strategy failure: blkno = %ld, bcount = %ld\n",
328 unit, (long)bp->b_blkno, bp->b_bcount);
329 bp->b_error = EINVAL;
330 bp->b_flags |= B_ERROR;
331 goto bad;
332 }
333
334 /* if device invalidated (e.g. media change, door open), error */
335 if (!(cd->flags & SCDVALID)) {
336 printf("scd%d: media changed\n", unit);
337 bp->b_error = EIO;
338 goto bad;
339 }
340
341 /* read only */
342 if (!(bp->b_flags & B_READ)) {
343 bp->b_error = EROFS;
344 goto bad;
345 }
346
347 /* no data to read */
348 if (bp->b_bcount == 0)
349 goto done;
350
351 if (!(cd->flags & SCDTOC)) {
352 bp->b_error = EIO;
353 goto bad;
354 }
355 /* adjust transfer if necessary */
356 if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0)
357 goto done;
358
359 bp->b_pblkno = bp->b_blkno;
360 bp->b_resid = 0;
361
362 /* queue it */
363 s = splbio();
364 bufqdisksort(&cd->head, 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;
384 struct partition *p;
385 int s = splbio();
386
387 if (cd->flags & SCDMBXBSY) {
388 splx(s);
389 return;
390 }
391
392 bp = bufq_first(&cd->head);
393 if (bp != 0) {
394 /* block found to process, dequeue */
395 bufq_remove(&cd->head, bp);
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
417static int
7b95be2a 418scdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct thread *td)
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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 DIOCGDINFO:
434 *(struct disklabel *)addr = cd->dlabel;
435 return 0;
436 case DIOCGPART:
437 ((struct partinfo *)addr)->disklab = &cd->dlabel;
438 ((struct partinfo *)addr)->part =
439 &cd->dlabel.d_partitions[0];
440 return 0;
441 case CDIOCPLAYTRACKS:
442 return scd_playtracks(unit, (struct ioc_play_track *) addr);
443 case CDIOCPLAYBLOCKS:
444 return EINVAL;
445 case CDIOCPLAYMSF:
446 return scd_playmsf(unit, (struct ioc_play_msf *) addr);
447 case CDIOCREADSUBCHANNEL:
448 return scd_subchan(unit, (struct ioc_read_subchannel *) addr);
449 case CDIOREADTOCHEADER:
450 return scd_toc_header (unit, (struct ioc_toc_header *) addr);
451 case CDIOREADTOCENTRYS:
452 return scd_toc_entrys (unit, (struct ioc_read_toc_entry*) addr);
453 case CDIOREADTOCENTRY:
454 return scd_toc_entry (unit, (struct ioc_read_toc_single_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
493/***************************************************************
494 * lower level of driver starts here
495 **************************************************************/
496
497static int
498scd_playtracks(int unit, struct ioc_play_track *pt)
499{
500 struct scd_data *cd = scd_data + unit;
501 struct ioc_play_msf msf;
502 int a = pt->start_track;
503 int z = pt->end_track;
504 int rc;
505
506 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
507 if (rc == -ERR_NOT_SPINNING) {
508 if (spin_up(unit) != 0)
509 return EIO;
510 rc = read_toc(unit);
511 }
512 if (rc != 0) {
513 print_error(unit, rc);
514 return EIO;
515 }
516 }
517
518 XDEBUG(1, ("scd%d: playtracks from %d:%d to %d:%d\n", unit,
519 a, pt->start_index, z, pt->end_index));
520
521 if ( a < cd->first_track
522 || a > cd->last_track
523 || a > z
524 || z > cd->last_track)
525 return EINVAL;
526
527 bcopy(cd->toc[a].start_msf, &msf.start_m, 3);
528 hsg2msf(msf2hsg(cd->toc[z+1].start_msf)-1, &msf.end_m);
529
530 return scd_play(unit, &msf);
531}
532
533/* The start/end msf is expected to be in bin format */
534static int
535scd_playmsf(int unit, struct ioc_play_msf *msfin)
536{
537 struct ioc_play_msf msf;
538
539 msf.start_m = bin2bcd(msfin->start_m);
540 msf.start_s = bin2bcd(msfin->start_s);
541 msf.start_f = bin2bcd(msfin->start_f);
542 msf.end_m = bin2bcd(msfin->end_m);
543 msf.end_s = bin2bcd(msfin->end_s);
544 msf.end_f = bin2bcd(msfin->end_f);
545
546 return scd_play(unit, &msf);
547}
548
549/* The start/end msf is expected to be in bcd format */
550static int
551scd_play(int unit, struct ioc_play_msf *msf)
552{
553 struct scd_data *cd = scd_data + unit;
554 int i, rc;
555
556 XDEBUG(1, ("scd%d: playing: %02x:%02x:%02x -> %02x:%02x:%02x\n", unit,
557 msf->start_m, msf->start_s, msf->start_f,
558 msf->end_m, msf->end_s, msf->end_f));
559
560 for (i = 0; i < 2; i++) {
561 rc = send_cmd(unit, CMD_PLAY_AUDIO, 7,
562 0x03,
563 msf->start_m, msf->start_s, msf->start_f,
564 msf->end_m, msf->end_s, msf->end_f);
565 if (rc == -ERR_NOT_SPINNING) {
566 cd->flags &= ~SCDSPINNING;
567 if (spin_up(unit) != 0)
568 return EIO;
569 } else if (rc < 0) {
570 print_error(unit, rc);
571 return EIO;
572 } else {
573 break;
574 }
575 }
576 cd->audio_status = CD_AS_PLAY_IN_PROGRESS;
577 bcopy((char *)msf, (char *)&cd->last_play, sizeof(struct ioc_play_msf));
578 return 0;
579}
580
581static int
582scd_stop(int unit)
583{
584 struct scd_data *cd = scd_data + unit;
585
586 (void)send_cmd(unit, CMD_STOP_AUDIO, 0);
587 cd->audio_status = CD_AS_PLAY_COMPLETED;
588 return 0;
589}
590
591static int
592scd_pause(int unit)
593{
594 struct scd_data *cd = scd_data + unit;
595 struct sony_subchannel_position_data subpos;
596
597 if (cd->audio_status != CD_AS_PLAY_IN_PROGRESS)
598 return EINVAL;
599
600 if (read_subcode(unit, &subpos) != 0)
601 return EIO;
602
603 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0)
604 return EIO;
605
606 cd->last_play.start_m = subpos.abs_msf[0];
607 cd->last_play.start_s = subpos.abs_msf[1];
608 cd->last_play.start_f = subpos.abs_msf[2];
609 cd->audio_status = CD_AS_PLAY_PAUSED;
610
611 XDEBUG(1, ("scd%d: pause @ %02x:%02x:%02x\n", unit,
612 cd->last_play.start_m,
613 cd->last_play.start_s,
614 cd->last_play.start_f));
615
616 return 0;
617}
618
619static int
620scd_resume(int unit)
621{
622 if (scd_data[unit].audio_status != CD_AS_PLAY_PAUSED)
623 return EINVAL;
624 return scd_play(unit, &scd_data[unit].last_play);
625}
626
627static int
628scd_eject(int unit)
629{
630 struct scd_data *cd = scd_data + unit;
631
632 cd->audio_status = CD_AS_AUDIO_INVALID;
633 cd->flags &= ~(SCDSPINNING|SCDTOC);
634
635 if (send_cmd(unit, CMD_STOP_AUDIO, 0) != 0 ||
636 send_cmd(unit, CMD_SPIN_DOWN, 0) != 0 ||
637 send_cmd(unit, CMD_EJECT, 0) != 0)
638 {
639 return EIO;
640 }
641 return 0;
642}
643
644static int
645scd_subchan(int unit, struct ioc_read_subchannel *sc)
646{
647 struct scd_data *cd = scd_data + unit;
648 struct sony_subchannel_position_data q;
649 struct cd_sub_channel_info data;
650
651 XDEBUG(1, ("scd%d: subchan af=%d, df=%d\n", unit,
652 sc->address_format,
653 sc->data_format));
654
655 if (sc->address_format != CD_MSF_FORMAT)
656 return EINVAL;
657
658 if (sc->data_format != CD_CURRENT_POSITION)
659 return EINVAL;
660
661 if (read_subcode(unit, &q) != 0)
662 return EIO;
663
664 data.header.audio_status = cd->audio_status;
665 data.what.position.data_format = CD_MSF_FORMAT;
666 data.what.position.track_number = bcd2bin(q.track_number);
667 data.what.position.reladdr.msf.unused = 0;
668 data.what.position.reladdr.msf.minute = bcd2bin(q.rel_msf[0]);
669 data.what.position.reladdr.msf.second = bcd2bin(q.rel_msf[1]);
670 data.what.position.reladdr.msf.frame = bcd2bin(q.rel_msf[2]);
671 data.what.position.absaddr.msf.unused = 0;
672 data.what.position.absaddr.msf.minute = bcd2bin(q.abs_msf[0]);
673 data.what.position.absaddr.msf.second = bcd2bin(q.abs_msf[1]);
674 data.what.position.absaddr.msf.frame = bcd2bin(q.abs_msf[2]);
675
676 if (copyout(&data, sc->data, min(sizeof(struct cd_sub_channel_info), sc->data_len))!=0)
677 return EFAULT;
678 return 0;
679}
680
681static __inline void
682write_control(unsigned port, unsigned data)
683{
684 outb(port + OREG_CONTROL, data);
685}
686
687static int
688scd_probe(struct isa_device *dev)
689{
690 struct sony_drive_configuration drive_config;
691 int unit = dev->id_unit;
692 int rc;
693 static char namebuf[8+16+8+3];
694 char *s = namebuf;
695 int loop_count = 0;
696 static int once;
697
698 if (!once++)
699 cdevsw_add(&scd_cdevsw);
700
701 scd_data[unit].flags = SCDPROBING;
702 scd_data[unit].iobase = dev->id_iobase;
703
704 bzero(&drive_config, sizeof(drive_config));
705
706again:
707 /* Reset drive */
708 write_control(dev->id_iobase, CBIT_RESET_DRIVE);
709
710 /* Calm down */
711 DELAY(300000);
712
713 /* Only the ATTENTION bit may be set */
714 if ((inb(dev->id_iobase+IREG_STATUS) & ~1) != 0) {
715 XDEBUG(1, ("scd: too many bits set. probe failed.\n"));
716 return 0;
717 }
718 rc = send_cmd(unit, CMD_GET_DRIVE_CONFIG, 0);
719 if (rc != sizeof(drive_config)) {
720 /* Sometimes if the drive is playing audio I get */
721 /* the bad result 82. Fix by repeating the reset */
722 if (rc > 0 && loop_count++ == 0)
723 goto again;
724 return 0;
725 }
726 if (get_result(unit, rc, (u_char *)&drive_config) != 0)
727 return 0;
728
729 bcopy(drive_config.vendor, namebuf, 8);
730 s = namebuf+8;
731 while (*(s-1) == ' ') /* Strip trailing spaces */
732 s--;
733 *s++ = ' ';
734 bcopy(drive_config.product, s, 16);
735 s += 16;
736 while (*(s-1) == ' ')
737 s--;
738 *s++ = ' ';
739 bcopy(drive_config.revision, s, 8);
740 s += 8;
741 while (*(s-1) == ' ')
742 s--;
743 *s = 0;
744
745 scd_data[unit].name = namebuf;
746
747 if (drive_config.config & 0x10)
748 scd_data[unit].double_speed = 1;
749 else
750 scd_data[unit].double_speed = 0;
751
752 return 4;
753}
754
755static int
756read_subcode(int unit, struct sony_subchannel_position_data *sc)
757{
758 int rc;
759
760 rc = send_cmd(unit, CMD_GET_SUBCHANNEL_DATA, 0);
761 if (rc < 0 || rc < sizeof(*sc))
762 return EIO;
763 if (get_result(unit, rc, (u_char *)sc) != 0)
764 return EIO;
765 return 0;
766}
767
768/* State machine copied from mcd.c */
769
770/* This (and the code in mcd.c) will not work with more than one drive */
771/* because there is only one mbxsave below. Should fix that some day. */
772/* (mbxsave & state should probably be included in the scd_data struct and */
773/* the unit number used as first argument to scd_doread().) /Micke */
774
775/* state machine to process read requests
776 * initialize with SCD_S_BEGIN: reset state machine
777 * SCD_S_WAITSTAT: wait for ready (!busy)
778 * SCD_S_WAITSPIN: wait for drive to spin up (if not spinning)
779 * SCD_S_WAITFIFO: wait for param fifo to get ready, them exec. command.
780 * SCD_S_WAITREAD: wait for data ready, read data
781 * SCD_S_WAITPARAM: wait for command result params, read them, error if bad data read.
782 */
783
784static struct scd_mbx *mbxsave;
785
786static void
787scd_timeout(void *arg)
788{
789 scd_doread((int)arg, mbxsave);
790}
791
792static void
793scd_doread(int state, struct scd_mbx *mbxin)
794{
795 struct scd_mbx *mbx = (state!=SCD_S_BEGIN) ? mbxsave : mbxin;
796 int unit = mbx->unit;
797 int port = mbx->port;
798 struct buf *bp = mbx->bp;
799 struct scd_data *cd = scd_data + unit;
800 int reg,i;
801 int blknum;
802 caddr_t addr;
803 static char sdata[3]; /* Must be preserved between calls to this function */
804
805loop:
806 switch (state) {
807 case SCD_S_BEGIN:
808 mbx = mbxsave = mbxin;
809
810 case SCD_S_BEGIN1:
811 /* get status */
812 mbx->count = RDELAY_WAIT;
813
814 process_attention(unit);
815 goto trystat;
816
817 case SCD_S_WAITSTAT:
818 untimeout(scd_timeout,(caddr_t)SCD_S_WAITSTAT, tohandle);
819 if (mbx->count-- <= 0) {
820 printf("scd%d: timeout. drive busy.\n",unit);
821 goto harderr;
822 }
823
824trystat:
825 if (IS_BUSY(port)) {
826 tohandle = timeout(scd_timeout,
827 (caddr_t)SCD_S_WAITSTAT,hz/100); /* XXX */
828 return;
829 }
830
831 process_attention(unit);
832
833 /* reject, if audio active */
834 if (cd->audio_status & CD_AS_PLAY_IN_PROGRESS) {
835 printf("scd%d: audio is active\n",unit);
836 goto harderr;
837 }
838
839 mbx->sz = cd->blksize;
840
841 /* for first block */
842 mbx->nblk = (bp->b_bcount + (mbx->sz-1)) / mbx->sz;
843 mbx->skip = 0;
844
845nextblock:
846 if (!(cd->flags & SCDVALID))
847 goto changed;
848
849 blknum = (bp->b_blkno / (mbx->sz/DEV_BSIZE))
850 + mbx->p_offset + mbx->skip/mbx->sz;
851
852 XDEBUG(2, ("scd%d: scd_doread: read blknum=%d\n", unit, blknum));
853
854 /* build parameter block */
855 hsg2msf(blknum, sdata);
856
857 write_control(port, CBIT_RESULT_READY_CLEAR);
858 write_control(port, CBIT_RPARAM_CLEAR);
859 write_control(port, CBIT_DATA_READY_CLEAR);
860
861 if (FSTATUS_BIT(port, FBIT_WPARAM_READY))
862 goto writeparam;
863
864 mbx->count = 100;
865 tohandle = timeout(scd_timeout,
866 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */
867 return;
868
869 case SCD_S_WAITSPIN:
870 untimeout(scd_timeout,(caddr_t)SCD_S_WAITSPIN, tohandle);
871 if (mbx->count-- <= 0) {
872 printf("scd%d: timeout waiting for drive to spin up.\n", unit);
873 goto harderr;
874 }
875 if (!STATUS_BIT(port, SBIT_RESULT_READY)) {
876 tohandle = timeout(scd_timeout,
877 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */
878 return;
879 }
880 write_control(port, CBIT_RESULT_READY_CLEAR);
881 switch ((i = inb(port+IREG_RESULT)) & 0xf0) {
882 case 0x20:
883 i = inb(port+IREG_RESULT);
884 print_error(unit, i);
885 goto harderr;
886 case 0x00:
887 (void)inb(port+IREG_RESULT);
888 cd->flags |= SCDSPINNING;
889 break;
890 }
891 XDEBUG(1, ("scd%d: DEBUG: spin up complete\n", unit));
892
893 state = SCD_S_BEGIN1;
894 goto loop;
895
896 case SCD_S_WAITFIFO:
897 untimeout(scd_timeout,(caddr_t)SCD_S_WAITFIFO, tohandle);
898 if (mbx->count-- <= 0) {
899 printf("scd%d: timeout. write param not ready.\n",unit);
900 goto harderr;
901 }
902 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) {
903 tohandle = timeout(scd_timeout,
904 (caddr_t)SCD_S_WAITFIFO,hz/100); /* XXX */
905 return;
906 }
907 XDEBUG(1, ("scd%d: mbx->count (writeparamwait) = %d(%d)\n", unit, mbx->count, 100));
908
909writeparam:
910 /* The reason this test isn't done 'till now is to make sure */
911 /* that it is ok to send the SPIN_UP cmd below. */
912 if (!(cd->flags & SCDSPINNING)) {
913 XDEBUG(1, ("scd%d: spinning up drive ...\n", unit));
914 outb(port+OREG_COMMAND, CMD_SPIN_UP);
915 mbx->count = 300;
916 tohandle = timeout(scd_timeout,
917 (caddr_t)SCD_S_WAITSPIN,hz/100); /* XXX */
918 return;
919 }
920
921 reg = port + OREG_WPARAMS;
922 /* send the read command */
7b95be2a 923 cpu_disable_intr();
984263bc
MD
924 outb(reg, sdata[0]);
925 outb(reg, sdata[1]);
926 outb(reg, sdata[2]);
927 outb(reg, 0);
928 outb(reg, 0);
929 outb(reg, 1);
930 outb(port+OREG_COMMAND, CMD_READ);
7b95be2a 931 cpu_enable_intr();
984263bc
MD
932
933 mbx->count = RDELAY_WAITREAD;
934 for (i = 0; i < 50; i++) {
935 if (STATUS_BIT(port, SBIT_DATA_READY))
936 goto got_data;
937 DELAY(100);
938 }
939
940 tohandle = timeout(scd_timeout,
941 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */
942 return;
943
944 case SCD_S_WAITREAD:
945 untimeout(scd_timeout,(caddr_t)SCD_S_WAITREAD, tohandle);
946 if (mbx->count-- <= 0) {
947 if (STATUS_BIT(port, SBIT_RESULT_READY))
948 goto got_param;
949 printf("scd%d: timeout while reading data\n",unit);
950 goto readerr;
951 }
952 if (!STATUS_BIT(port, SBIT_DATA_READY)) {
953 process_attention(unit);
954 if (!(cd->flags & SCDVALID))
955 goto changed;
956 tohandle = timeout(scd_timeout,
957 (caddr_t)SCD_S_WAITREAD,hz/100); /* XXX */
958 return;
959 }
960 XDEBUG(2, ("scd%d: mbx->count (after RDY_BIT) = %d(%d)\n", unit, mbx->count, RDELAY_WAITREAD));
961
962got_data:
963 /* data is ready */
964 addr = bp->b_data + mbx->skip;
965 write_control(port, CBIT_DATA_READY_CLEAR);
966 insb(port+IREG_DATA, addr, mbx->sz);
967
968 mbx->count = 100;
969 for (i = 0; i < 20; i++) {
970 if (STATUS_BIT(port, SBIT_RESULT_READY))
971 goto waitfor_param;
972 DELAY(100);
973 }
974 goto waitfor_param;
975
976 case SCD_S_WAITPARAM:
977 untimeout(scd_timeout,(caddr_t)SCD_S_WAITPARAM, tohandle);
978 if (mbx->count-- <= 0) {
979 printf("scd%d: timeout waiting for params\n",unit);
980 goto readerr;
981 }
982
983waitfor_param:
984 if (!STATUS_BIT(port, SBIT_RESULT_READY)) {
985 tohandle = timeout(scd_timeout,
986 (caddr_t)SCD_S_WAITPARAM,hz/100); /* XXX */
987 return;
988 }
989#if SCD_DEBUG
990 if (mbx->count < 100 && scd_debuglevel > 0)
991 printf("scd%d: mbx->count (paramwait) = %d(%d)\n", unit, mbx->count, 100);
992#endif
993
994got_param:
995 write_control(port, CBIT_RESULT_READY_CLEAR);
996 switch ((i = inb(port+IREG_RESULT)) & 0xf0) {
997 case 0x50:
998 switch (i) {
999 case ERR_FATAL_READ_ERROR1:
1000 case ERR_FATAL_READ_ERROR2:
1001 printf("scd%d: unrecoverable read error 0x%x\n", unit, i);
1002 goto harderr;
1003 }
1004 break;
1005 case 0x20:
1006 i = inb(port+IREG_RESULT);
1007 switch (i) {
1008 case ERR_NOT_SPINNING:
1009 XDEBUG(1, ("scd%d: read error: drive not spinning\n", unit));
1010 if (mbx->retry-- > 0) {
1011 state = SCD_S_BEGIN1;
1012 cd->flags &= ~SCDSPINNING;
1013 goto loop;
1014 }
1015 goto harderr;
1016 default:
1017 print_error(unit, i);
1018 goto readerr;
1019 }
1020 case 0x00:
1021 i = inb(port+IREG_RESULT);
1022 break;
1023 }
1024
1025 if (--mbx->nblk > 0) {
1026 mbx->skip += mbx->sz;
1027 goto nextblock;
1028 }
1029
1030 /* return buffer */
1031 bp->b_resid = 0;
1032 biodone(bp);
1033
1034 cd->flags &= ~SCDMBXBSY;
1035 scd_start(mbx->unit);
1036 return;
1037 }
1038
1039readerr:
1040 if (mbx->retry-- > 0) {
1041 printf("scd%d: retrying ...\n",unit);
1042 state = SCD_S_BEGIN1;
1043 goto loop;
1044 }
1045harderr:
1046 /* invalidate the buffer */
1047 bp->b_error = EIO;
1048 bp->b_flags |= B_ERROR;
1049 bp->b_resid = bp->b_bcount;
1050 biodone(bp);
1051
1052 cd->flags &= ~SCDMBXBSY;
1053 scd_start(mbx->unit);
1054 return;
1055
1056changed:
1057 printf("scd%d: media changed\n", unit);
1058 goto harderr;
1059}
1060
1061static void
1062hsg2msf(int hsg, bcd_t *msf)
1063{
1064 hsg += 150;
1065 M_msf(msf) = bin2bcd(hsg / 4500);
1066 hsg %= 4500;
1067 S_msf(msf) = bin2bcd(hsg / 75);
1068 F_msf(msf) = bin2bcd(hsg % 75);
1069}
1070
1071static int
1072msf2hsg(bcd_t *msf)
1073{
1074 return (bcd2bin(M_msf(msf)) * 60 +
1075 bcd2bin(S_msf(msf))) * 75 +
1076 bcd2bin(F_msf(msf)) - 150;
1077}
1078
1079static void
1080process_attention(unsigned unit)
1081{
1082 unsigned port = scd_data[unit].iobase;
1083 unsigned char code;
1084 int count = 0;
1085
1086 while (IS_ATTENTION(port) && count++ < 30) {
1087 write_control(port, CBIT_ATTENTION_CLEAR);
1088 code = inb(port+IREG_RESULT);
1089
1090#if SCD_DEBUG
1091 if (scd_debuglevel > 0) {
1092 if (count == 1)
1093 printf("scd%d: DEBUG: ATTENTIONS = 0x%x", unit, code);
1094 else
1095 printf(",0x%x", code);
1096 }
1097#endif
1098
1099 switch (code) {
1100 case ATTEN_SPIN_DOWN:
1101 scd_data[unit].flags &= ~SCDSPINNING;
1102 break;
1103
1104 case ATTEN_SPIN_UP_DONE:
1105 scd_data[unit].flags |= SCDSPINNING;
1106 break;
1107
1108 case ATTEN_AUDIO_DONE:
1109 scd_data[unit].audio_status = CD_AS_PLAY_COMPLETED;
1110 break;
1111
1112 case ATTEN_DRIVE_LOADED:
1113 scd_data[unit].flags &= ~(SCDTOC|SCDSPINNING|SCDVALID);
1114 scd_data[unit].audio_status = CD_AS_AUDIO_INVALID;
1115 break;
1116
1117 case ATTEN_EJECT_PUSHED:
1118 scd_data[unit].flags &= ~SCDVALID;
1119 break;
1120 }
1121 DELAY(100);
1122 }
1123#if SCD_DEBUG
1124 if (scd_debuglevel > 0 && count > 0)
1125 printf("\n");
1126#endif
1127}
1128
1129/* Returns 0 OR sony error code */
1130static int
1131spin_up(unsigned unit)
1132{
1133 unsigned char res_reg[12];
1134 unsigned int res_size;
1135 int rc;
1136 int loop_count = 0;
1137
1138again:
1139 rc = send_cmd(unit, CMD_SPIN_UP, 0, 0, res_reg, &res_size);
1140 if (rc != 0) {
1141 XDEBUG(2, ("scd%d: CMD_SPIN_UP error 0x%x\n", unit, rc));
1142 return rc;
1143 }
1144
1145 if (!(scd_data[unit].flags & SCDTOC)) {
1146 rc = send_cmd(unit, CMD_READ_TOC, 0);
1147 if (rc == ERR_NOT_SPINNING) {
1148 if (loop_count++ < 3)
1149 goto again;
1150 return rc;
1151 }
1152 if (rc != 0)
1153 return rc;
1154 }
1155
1156 scd_data[unit].flags |= SCDSPINNING;
1157
1158 return 0;
1159}
1160
1161static struct sony_tracklist *
1162get_tl(struct sony_toc *toc, int size)
1163{
1164 struct sony_tracklist *tl = &toc->tracks[0];
1165
1166 if (tl->track != 0xb0)
1167 return tl;
1168 (char *)tl += 9;
1169 if (tl->track != 0xb1)
1170 return tl;
1171 (char *)tl += 9;
1172 if (tl->track != 0xb2)
1173 return tl;
1174 (char *)tl += 9;
1175 if (tl->track != 0xb3)
1176 return tl;
1177 (char *)tl += 9;
1178 if (tl->track != 0xb4)
1179 return tl;
1180 (char *)tl += 9;
1181 if (tl->track != 0xc0)
1182 return tl;
1183 (char *)tl += 9;
1184 return tl;
1185}
1186
1187static int
1188read_toc(unsigned unit)
1189{
1190 struct scd_data *cd;
1191 unsigned part = 0; /* For now ... */
1192 struct sony_toc toc;
1193 struct sony_tracklist *tl;
1194 int rc, i, j;
1195 u_long first, last;
1196
1197 cd = scd_data + unit;
1198
1199 rc = send_cmd(unit, CMD_GET_TOC, 1, part+1);
1200 if (rc < 0)
1201 return rc;
1202 if (rc > sizeof(toc)) {
1203 printf("scd%d: program error: toc too large (%d)\n", unit, rc);
1204 return EIO;
1205 }
1206 if (get_result(unit, rc, (u_char *)&toc) != 0)
1207 return EIO;
1208
1209 XDEBUG(1, ("scd%d: toc read. len = %d, sizeof(toc) = %d\n", unit, rc, sizeof(toc)));
1210
1211 tl = get_tl(&toc, rc);
1212 first = msf2hsg(tl->start_msf);
1213 last = msf2hsg(toc.lead_out_start_msf);
1214 cd->blksize = SCDBLKSIZE;
1215 cd->disksize = last*cd->blksize/DEV_BSIZE;
1216
1217 XDEBUG(1, ("scd%d: firstsector = %ld, lastsector = %ld", unit,
1218 first, last));
1219
1220 cd->first_track = bcd2bin(toc.first_track);
1221 cd->last_track = bcd2bin(toc.last_track);
1222 if (cd->last_track > (MAX_TRACKS-2))
1223 cd->last_track = MAX_TRACKS-2;
1224 for (j = 0, i = cd->first_track; i <= cd->last_track; i++, j++) {
1225 cd->toc[i].adr = tl[j].adr;
1226 cd->toc[i].ctl = tl[j].ctl; /* for xcdplayer */
1227 bcopy(tl[j].start_msf, cd->toc[i].start_msf, 3);
1228#ifdef SCD_DEBUG
1229 if (scd_debuglevel > 0) {
1230 if ((j % 3) == 0)
1231 printf("\nscd%d: tracks ", unit);
1232 printf("[%03d: %2d %2d %2d] ", i,
1233 bcd2bin(cd->toc[i].start_msf[0]),
1234 bcd2bin(cd->toc[i].start_msf[1]),
1235 bcd2bin(cd->toc[i].start_msf[2]));
1236 }
1237#endif
1238 }
1239 bcopy(toc.lead_out_start_msf, cd->toc[cd->last_track+1].start_msf, 3);
1240#ifdef SCD_DEBUG
1241 if (scd_debuglevel > 0) {
1242 i = cd->last_track+1;
1243 printf("[END: %2d %2d %2d]\n",
1244 bcd2bin(cd->toc[i].start_msf[0]),
1245 bcd2bin(cd->toc[i].start_msf[1]),
1246 bcd2bin(cd->toc[i].start_msf[2]));
1247 }
1248#endif
1249
1250 bzero(&cd->dlabel,sizeof(struct disklabel));
1251 /* filled with spaces first */
1252 strncpy(cd->dlabel.d_typename," ",
1253 sizeof(cd->dlabel.d_typename));
1254 strncpy(cd->dlabel.d_typename, cd->name,
1255 min(strlen(cd->name), sizeof(cd->dlabel.d_typename) - 1));
1256 strncpy(cd->dlabel.d_packname,"unknown ",
1257 sizeof(cd->dlabel.d_packname));
1258 cd->dlabel.d_secsize = cd->blksize;
1259 cd->dlabel.d_nsectors = 100;
1260 cd->dlabel.d_ntracks = 1;
1261 cd->dlabel.d_ncylinders = (cd->disksize/100)+1;
1262 cd->dlabel.d_secpercyl = 100;
1263 cd->dlabel.d_secperunit = cd->disksize;
1264 cd->dlabel.d_rpm = 300;
1265 cd->dlabel.d_interleave = 1;
1266 cd->dlabel.d_flags = D_REMOVABLE;
1267 cd->dlabel.d_npartitions= 1;
1268 cd->dlabel.d_partitions[0].p_offset = 0;
1269 cd->dlabel.d_partitions[0].p_size = cd->disksize;
1270 cd->dlabel.d_partitions[0].p_fstype = 9;
1271 cd->dlabel.d_magic = DISKMAGIC;
1272 cd->dlabel.d_magic2 = DISKMAGIC;
1273 cd->dlabel.d_checksum = dkcksum(&cd->dlabel);
1274
1275 cd->flags |= SCDTOC;
1276
1277 return 0;
1278}
1279
1280static void
1281init_drive(unsigned unit)
1282{
1283 int rc;
1284
1285 rc = send_cmd(unit, CMD_SET_DRIVE_PARAM, 2,
1286 0x05, 0x03 | ((scd_data[unit].double_speed) ? 0x04: 0));
1287 if (rc != 0)
1288 printf("scd%d: Unable to set parameters. Errcode = 0x%x\n", unit, rc);
1289}
1290
1291/* Returns 0 or errno */
1292static int
1293get_result(u_int unit, int result_len, u_char *result)
1294{
1295 unsigned int port = scd_data[unit].iobase;
1296 unsigned int res_reg = port + IREG_RESULT;
1297 int loop_index = 2; /* send_cmd() reads two bytes ... */
1298
1299 XDEBUG(1, ("scd%d: DEBUG: get_result: bytes=%d\n", unit, result_len));
1300
1301 while (result_len-- > 0) {
1302 if (loop_index++ >= 10) {
1303 loop_index = 1;
1304 if (waitfor_status_bits(unit, SBIT_RESULT_READY, 0))
1305 return EIO;
1306 write_control(port, CBIT_RESULT_READY_CLEAR);
1307 }
1308 if (result)
1309 *result++ = inb(res_reg);
1310 else
1311 (void)inb(res_reg);
1312 }
1313 return 0;
1314}
1315
1316/* Returns -0x100 for timeout, -(drive error code) OR number of result bytes */
1317static int
1318send_cmd(u_int unit, u_char cmd, u_int nargs, ...)
1319{
1320 va_list ap;
1321 u_int port = scd_data[unit].iobase;
1322 u_int reg;
1323 u_char c;
1324 int rc;
1325 int i;
1326
1327 if (waitfor_status_bits(unit, 0, SBIT_BUSY)) {
1328 printf("scd%d: drive busy\n", unit);
1329 return -0x100;
1330 }
1331
1332 XDEBUG(1,("scd%d: DEBUG: send_cmd: cmd=0x%x nargs=%d", unit, cmd, nargs));
1333
1334 write_control(port, CBIT_RESULT_READY_CLEAR);
1335 write_control(port, CBIT_RPARAM_CLEAR);
1336
1337 for (i = 0; i < 100; i++)
1338 if (FSTATUS_BIT(port, FBIT_WPARAM_READY))
1339 break;
1340 if (!FSTATUS_BIT(port, FBIT_WPARAM_READY)) {
1341 XDEBUG(1, ("\nscd%d: wparam timeout\n", unit));
1342 return -EIO;
1343 }
1344
1345 va_start(ap, nargs);
1346 reg = port + OREG_WPARAMS;
1347 for (i = 0; i < nargs; i++) {
1348 c = (u_char)va_arg(ap, int);
1349 outb(reg, c);
1350 XDEBUG(1, (",{0x%x}", c));
1351 }
1352 va_end(ap);
1353 XDEBUG(1, ("\n"));
1354
1355 outb(port+OREG_COMMAND, cmd);
1356
1357 rc = waitfor_status_bits(unit, SBIT_RESULT_READY, SBIT_BUSY);
1358 if (rc)
1359 return -0x100;
1360
1361 reg = port + IREG_RESULT;
1362 write_control(port, CBIT_RESULT_READY_CLEAR);
1363 switch ((rc = inb(reg)) & 0xf0) {
1364 case 0x20:
1365 rc = inb(reg);
1366 /* FALL TROUGH */
1367 case 0x50:
1368 XDEBUG(1, ("scd%d: DEBUG: send_cmd: drive_error=0x%x\n", unit, rc));
1369 return -rc;
1370 case 0x00:
1371 default:
1372 rc = inb(reg);
1373 XDEBUG(1, ("scd%d: DEBUG: send_cmd: result_len=%d\n", unit, rc));
1374 return rc;
1375 }
1376}
1377
1378static void
1379print_error(int unit, int errcode)
1380{
1381 switch (errcode) {
1382 case -ERR_CD_NOT_LOADED:
1383 printf("scd%d: door is open\n", unit);
1384 break;
1385 case -ERR_NO_CD_INSIDE:
1386 printf("scd%d: no cd inside\n", unit);
1387 break;
1388 default:
1389 if (errcode == -0x100 || errcode > 0)
1390 printf("scd%d: device timeout\n", unit);
1391 else
1392 printf("scd%d: unexpected error 0x%x\n", unit, -errcode);
1393 break;
1394 }
1395}
1396
1397/* Returns 0 or errno value */
1398static int
1399waitfor_status_bits(int unit, int bits_set, int bits_clear)
1400{
1401 u_int port = scd_data[unit].iobase;
1402 u_int flags = scd_data[unit].flags;
1403 u_int reg = port + IREG_STATUS;
1404 u_int max_loop;
1405 u_char c = 0;
1406
1407 if (flags & SCDPROBING) {
1408 max_loop = 0;
1409 while (max_loop++ < 1000) {
1410 c = inb(reg);
1411 if (c == 0xff)
1412 return EIO;
1413 if (c & SBIT_ATTENTION) {
1414 process_attention(unit);
1415 continue;
1416 }
1417 if ((c & bits_set) == bits_set &&
1418 (c & bits_clear) == 0)
1419 {
1420 break;
1421 }
1422 DELAY(10000);
1423 }
1424 } else {
1425 max_loop = 100;
1426 while (max_loop-- > 0) {
1427 c = inb(reg);
1428 if (c & SBIT_ATTENTION) {
1429 process_attention(unit);
1430 continue;
1431 }
1432 if ((c & bits_set) == bits_set &&
1433 (c & bits_clear) == 0)
1434 {
1435 break;
1436 }
377d4740 1437 tsleep(waitfor_status_bits, 0, "waitfor", hz/10);
984263bc
MD
1438 }
1439 }
1440 if ((c & bits_set) == bits_set &&
1441 (c & bits_clear) == 0)
1442 {
1443 return 0;
1444 }
1445#ifdef SCD_DEBUG
1446 if (scd_debuglevel > 0)
1447 printf("scd%d: DEBUG: waitfor: TIMEOUT (0x%x,(0x%x,0x%x))\n", unit, c, bits_set, bits_clear);
1448 else
1449#endif
1450 printf("scd%d: timeout.\n", unit);
1451 return EIO;
1452}
1453
1454/* these two routines for xcdplayer - "borrowed" from mcd.c */
1455static int
1456scd_toc_header (int unit, struct ioc_toc_header* th)
1457{
1458 struct scd_data *cd = scd_data + unit;
1459 int rc;
1460
1461 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
1462 print_error(unit, rc);
1463 return EIO;
1464 }
1465
1466 th->starting_track = cd->first_track;
1467 th->ending_track = cd->last_track;
1468 th->len = 0; /* not used */
1469
1470 return 0;
1471}
1472
1473static int
1474scd_toc_entrys (int unit, struct ioc_read_toc_entry *te)
1475{
1476 struct scd_data *cd = scd_data + unit;
1477 struct cd_toc_entry toc_entry;
1478 int rc, i, len = te->data_len;
1479
1480 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
1481 print_error(unit, rc);
1482 return EIO;
1483 }
1484
1485 /* find the toc to copy*/
1486 i = te->starting_track;
1487 if (i == SCD_LASTPLUS1)
1488 i = cd->last_track + 1;
1489
1490 /* verify starting track */
1491 if (i < cd->first_track || i > cd->last_track+1)
1492 return EINVAL;
1493
1494 /* valid length ? */
1495 if (len < sizeof(struct cd_toc_entry)
1496 || (len % sizeof(struct cd_toc_entry)) != 0)
1497 return EINVAL;
1498
1499 /* copy the toc data */
1500 toc_entry.control = cd->toc[i].ctl;
1501 toc_entry.addr_type = te->address_format;
1502 toc_entry.track = i;
1503 if (te->address_format == CD_MSF_FORMAT) {
1504 toc_entry.addr.msf.unused = 0;
1505 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]);
1506 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]);
1507 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]);
1508 }
1509
1510 /* copy the data back */
1511 if (copyout(&toc_entry, te->data, sizeof(struct cd_toc_entry)) != 0)
1512 return EFAULT;
1513
1514 return 0;
1515}
1516
1517
1518static int
1519scd_toc_entry (int unit, struct ioc_read_toc_single_entry *te)
1520{
1521 struct scd_data *cd = scd_data + unit;
1522 struct cd_toc_entry toc_entry;
1523 int rc, i;
1524
1525 if (!(cd->flags & SCDTOC) && (rc = read_toc(unit)) != 0) {
1526 print_error(unit, rc);
1527 return EIO;
1528 }
1529
1530 /* find the toc to copy*/
1531 i = te->track;
1532 if (i == SCD_LASTPLUS1)
1533 i = cd->last_track + 1;
1534
1535 /* verify starting track */
1536 if (i < cd->first_track || i > cd->last_track+1)
1537 return EINVAL;
1538
1539 /* copy the toc data */
1540 toc_entry.control = cd->toc[i].ctl;
1541 toc_entry.addr_type = te->address_format;
1542 toc_entry.track = i;
1543 if (te->address_format == CD_MSF_FORMAT) {
1544 toc_entry.addr.msf.unused = 0;
1545 toc_entry.addr.msf.minute = bcd2bin(cd->toc[i].start_msf[0]);
1546 toc_entry.addr.msf.second = bcd2bin(cd->toc[i].start_msf[1]);
1547 toc_entry.addr.msf.frame = bcd2bin(cd->toc[i].start_msf[2]);
1548 }
1549
1550 /* copy the data back */
1551 bcopy(&toc_entry, &te->entry, sizeof(struct cd_toc_entry));
1552
1553 return 0;
1554}