FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/sb8.c
1 /*-
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * Copyright (c) 1997,1998 Luigi Rizzo
4 *
5 * Derived from files in the Voxware 3.5 distribution,
6 * Copyright by Hannu Savolainen 1994, under the same copyright
7 * conditions.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #ifdef HAVE_KERNEL_OPTION_HEADERS
33 #include "opt_snd.h"
34 #endif
35
36 #include <dev/sound/pcm/sound.h>
37
38 #include <dev/sound/isa/sb.h>
39 #include <dev/sound/chip.h>
40
41 #include <isa/isavar.h>
42
43 #include "mixer_if.h"
44
45 SND_DECLARE_FILE("$FreeBSD: releng/8.0/sys/dev/sound/isa/sb8.c 193640 2009-06-07 19:12:08Z ariff $");
46
47 #define SB_DEFAULT_BUFSZ 4096
48
49 static u_int32_t sb_fmt[] = {
50 SND_FORMAT(AFMT_U8, 1, 0),
51 0
52 };
53 static struct pcmchan_caps sb200_playcaps = {4000, 23000, sb_fmt, 0};
54 static struct pcmchan_caps sb200_reccaps = {4000, 13000, sb_fmt, 0};
55 static struct pcmchan_caps sb201_playcaps = {4000, 44100, sb_fmt, 0};
56 static struct pcmchan_caps sb201_reccaps = {4000, 15000, sb_fmt, 0};
57
58 static u_int32_t sbpro_fmt[] = {
59 SND_FORMAT(AFMT_U8, 1, 0),
60 SND_FORMAT(AFMT_U8, 2, 0),
61 0
62 };
63 static struct pcmchan_caps sbpro_playcaps = {4000, 44100, sbpro_fmt, 0};
64 static struct pcmchan_caps sbpro_reccaps = {4000, 44100, sbpro_fmt, 0};
65
66 struct sb_info;
67
68 struct sb_chinfo {
69 struct sb_info *parent;
70 struct pcm_channel *channel;
71 struct snd_dbuf *buffer;
72 int dir;
73 u_int32_t fmt, spd, blksz;
74 };
75
76 struct sb_info {
77 device_t parent_dev;
78 struct resource *io_base; /* I/O address for the board */
79 struct resource *irq;
80 struct resource *drq;
81 void *ih;
82 bus_dma_tag_t parent_dmat;
83
84 unsigned int bufsize;
85 int bd_id;
86 u_long bd_flags; /* board-specific flags */
87 struct sb_chinfo pch, rch;
88 };
89
90 static int sb_rd(struct sb_info *sb, int reg);
91 static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
92 static int sb_dspready(struct sb_info *sb);
93 static int sb_cmd(struct sb_info *sb, u_char val);
94 static int sb_cmd1(struct sb_info *sb, u_char cmd, int val);
95 static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
96 static u_int sb_get_byte(struct sb_info *sb);
97 static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
98 static int sb_getmixer(struct sb_info *sb, u_int port);
99 static int sb_reset_dsp(struct sb_info *sb);
100
101 static void sb_intr(void *arg);
102 static int sb_speed(struct sb_chinfo *ch);
103 static int sb_start(struct sb_chinfo *ch);
104 static int sb_stop(struct sb_chinfo *ch);
105
106 /*
107 * Common code for the midi and pcm functions
108 *
109 * sb_cmd write a single byte to the CMD port.
110 * sb_cmd1 write a CMD + 1 byte arg
111 * sb_cmd2 write a CMD + 2 byte arg
112 * sb_get_byte returns a single byte from the DSP data port
113 */
114
115 static void
116 sb_lock(struct sb_info *sb) {
117
118 sbc_lock(device_get_softc(sb->parent_dev));
119 }
120
121 static void
122 sb_unlock(struct sb_info *sb) {
123
124 sbc_unlock(device_get_softc(sb->parent_dev));
125 }
126
127 static int
128 port_rd(struct resource *port, int off)
129 {
130 return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
131 }
132
133 static void
134 port_wr(struct resource *port, int off, u_int8_t data)
135 {
136 bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
137 }
138
139 static int
140 sb_rd(struct sb_info *sb, int reg)
141 {
142 return port_rd(sb->io_base, reg);
143 }
144
145 static void
146 sb_wr(struct sb_info *sb, int reg, u_int8_t val)
147 {
148 port_wr(sb->io_base, reg, val);
149 }
150
151 static int
152 sb_dspready(struct sb_info *sb)
153 {
154 return ((sb_rd(sb, SBDSP_STATUS) & 0x80) == 0);
155 }
156
157 static int
158 sb_dspwr(struct sb_info *sb, u_char val)
159 {
160 int i;
161
162 for (i = 0; i < 1000; i++) {
163 if (sb_dspready(sb)) {
164 sb_wr(sb, SBDSP_CMD, val);
165 return 1;
166 }
167 if (i > 10) DELAY((i > 100)? 1000 : 10);
168 }
169 printf("sb_dspwr(0x%02x) timed out.\n", val);
170 return 0;
171 }
172
173 static int
174 sb_cmd(struct sb_info *sb, u_char val)
175 {
176 #if 0
177 printf("sb_cmd: %x\n", val);
178 #endif
179 return sb_dspwr(sb, val);
180 }
181
182 static int
183 sb_cmd1(struct sb_info *sb, u_char cmd, int val)
184 {
185 #if 0
186 printf("sb_cmd1: %x, %x\n", cmd, val);
187 #endif
188 if (sb_dspwr(sb, cmd)) {
189 return sb_dspwr(sb, val & 0xff);
190 } else return 0;
191 }
192
193 static int
194 sb_cmd2(struct sb_info *sb, u_char cmd, int val)
195 {
196 #if 0
197 printf("sb_cmd2: %x, %x\n", cmd, val);
198 #endif
199 if (sb_dspwr(sb, cmd)) {
200 return sb_dspwr(sb, val & 0xff) &&
201 sb_dspwr(sb, (val >> 8) & 0xff);
202 } else return 0;
203 }
204
205 /*
206 * in the SB, there is a set of indirect "mixer" registers with
207 * address at offset 4, data at offset 5
208 *
209 * we don't need to interlock these, the mixer lock will suffice.
210 */
211 static void
212 sb_setmixer(struct sb_info *sb, u_int port, u_int value)
213 {
214 sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
215 DELAY(10);
216 sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
217 DELAY(10);
218 }
219
220 static int
221 sb_getmixer(struct sb_info *sb, u_int port)
222 {
223 int val;
224
225 sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
226 DELAY(10);
227 val = sb_rd(sb, SB_MIX_DATA);
228 DELAY(10);
229
230 return val;
231 }
232
233 static u_int
234 sb_get_byte(struct sb_info *sb)
235 {
236 int i;
237
238 for (i = 1000; i > 0; i--) {
239 if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
240 return sb_rd(sb, DSP_READ);
241 else
242 DELAY(20);
243 }
244 return 0xffff;
245 }
246
247 static int
248 sb_reset_dsp(struct sb_info *sb)
249 {
250 sb_wr(sb, SBDSP_RST, 3);
251 DELAY(100);
252 sb_wr(sb, SBDSP_RST, 0);
253 if (sb_get_byte(sb) != 0xAA) {
254 DEB(printf("sb_reset_dsp 0x%lx failed\n",
255 rman_get_start(sb->io_base)));
256 return ENXIO; /* Sorry */
257 }
258 return 0;
259 }
260
261 static void
262 sb_release_resources(struct sb_info *sb, device_t dev)
263 {
264 if (sb->irq) {
265 if (sb->ih)
266 bus_teardown_intr(dev, sb->irq, sb->ih);
267 bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
268 sb->irq = 0;
269 }
270 if (sb->drq) {
271 isa_dma_release(rman_get_start(sb->drq));
272 bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq);
273 sb->drq = 0;
274 }
275 if (sb->io_base) {
276 bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
277 sb->io_base = 0;
278 }
279 if (sb->parent_dmat) {
280 bus_dma_tag_destroy(sb->parent_dmat);
281 sb->parent_dmat = 0;
282 }
283 free(sb, M_DEVBUF);
284 }
285
286 static int
287 sb_alloc_resources(struct sb_info *sb, device_t dev)
288 {
289 int rid;
290
291 rid = 0;
292 if (!sb->io_base)
293 sb->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
294 &rid, RF_ACTIVE);
295 rid = 0;
296 if (!sb->irq)
297 sb->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
298 &rid, RF_ACTIVE);
299 rid = 0;
300 if (!sb->drq)
301 sb->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ,
302 &rid, RF_ACTIVE);
303
304 if (sb->io_base && sb->drq && sb->irq) {
305 isa_dma_acquire(rman_get_start(sb->drq));
306 isa_dmainit(rman_get_start(sb->drq), sb->bufsize);
307
308 return 0;
309 } else return ENXIO;
310 }
311
312 /************************************************************/
313
314 static int
315 sbpromix_init(struct snd_mixer *m)
316 {
317 struct sb_info *sb = mix_getdevinfo(m);
318
319 mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
320 SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME);
321
322 mix_setrecdevs(m, SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD);
323
324 sb_setmixer(sb, 0, 1); /* reset mixer */
325
326 return 0;
327 }
328
329 static int
330 sbpromix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
331 {
332 struct sb_info *sb = mix_getdevinfo(m);
333 int reg, max;
334 u_char val;
335
336 max = 7;
337 switch (dev) {
338 case SOUND_MIXER_PCM:
339 reg = 0x04;
340 break;
341
342 case SOUND_MIXER_MIC:
343 reg = 0x0a;
344 max = 3;
345 break;
346
347 case SOUND_MIXER_VOLUME:
348 reg = 0x22;
349 break;
350
351 case SOUND_MIXER_SYNTH:
352 reg = 0x26;
353 break;
354
355 case SOUND_MIXER_CD:
356 reg = 0x28;
357 break;
358
359 case SOUND_MIXER_LINE:
360 reg = 0x2e;
361 break;
362
363 default:
364 return -1;
365 }
366
367 left = (left * max) / 100;
368 right = (dev == SOUND_MIXER_MIC)? left : ((right * max) / 100);
369
370 val = (dev == SOUND_MIXER_MIC)? (left << 1) : (left << 5 | right << 1);
371 sb_setmixer(sb, reg, val);
372
373 left = (left * 100) / max;
374 right = (right * 100) / max;
375
376 return left | (right << 8);
377 }
378
379 static u_int32_t
380 sbpromix_setrecsrc(struct snd_mixer *m, u_int32_t src)
381 {
382 struct sb_info *sb = mix_getdevinfo(m);
383 u_char recdev;
384
385 if (src == SOUND_MASK_LINE)
386 recdev = 0x06;
387 else if (src == SOUND_MASK_CD)
388 recdev = 0x02;
389 else { /* default: mic */
390 src = SOUND_MASK_MIC;
391 recdev = 0;
392 }
393 sb_setmixer(sb, RECORD_SRC, recdev | (sb_getmixer(sb, RECORD_SRC) & ~0x07));
394
395 return src;
396 }
397
398 static kobj_method_t sbpromix_mixer_methods[] = {
399 KOBJMETHOD(mixer_init, sbpromix_init),
400 KOBJMETHOD(mixer_set, sbpromix_set),
401 KOBJMETHOD(mixer_setrecsrc, sbpromix_setrecsrc),
402 KOBJMETHOD_END
403 };
404 MIXER_DECLARE(sbpromix_mixer);
405
406 /************************************************************/
407
408 static int
409 sbmix_init(struct snd_mixer *m)
410 {
411 struct sb_info *sb = mix_getdevinfo(m);
412
413 mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_CD | SOUND_MASK_VOLUME);
414
415 mix_setrecdevs(m, 0);
416
417 sb_setmixer(sb, 0, 1); /* reset mixer */
418
419 return 0;
420 }
421
422 static int
423 sbmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
424 {
425 struct sb_info *sb = mix_getdevinfo(m);
426 int reg, max;
427
428 max = 7;
429 switch (dev) {
430 case SOUND_MIXER_VOLUME:
431 reg = 0x2;
432 break;
433
434 case SOUND_MIXER_SYNTH:
435 reg = 0x6;
436 break;
437
438 case SOUND_MIXER_CD:
439 reg = 0x8;
440 break;
441
442 case SOUND_MIXER_PCM:
443 reg = 0x0a;
444 max = 3;
445 break;
446
447 default:
448 return -1;
449 }
450
451 left = (left * max) / 100;
452
453 sb_setmixer(sb, reg, left << 1);
454
455 left = (left * 100) / max;
456
457 return left | (left << 8);
458 }
459
460 static u_int32_t
461 sbmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
462 {
463 return 0;
464 }
465
466 static kobj_method_t sbmix_mixer_methods[] = {
467 KOBJMETHOD(mixer_init, sbmix_init),
468 KOBJMETHOD(mixer_set, sbmix_set),
469 KOBJMETHOD(mixer_setrecsrc, sbmix_setrecsrc),
470 KOBJMETHOD_END
471 };
472 MIXER_DECLARE(sbmix_mixer);
473
474 /************************************************************/
475
476 static void
477 sb_intr(void *arg)
478 {
479 struct sb_info *sb = (struct sb_info *)arg;
480
481 sb_lock(sb);
482 if (sndbuf_runsz(sb->pch.buffer) > 0) {
483 sb_unlock(sb);
484 chn_intr(sb->pch.channel);
485 sb_lock(sb);
486 }
487
488 if (sndbuf_runsz(sb->rch.buffer) > 0) {
489 sb_unlock(sb);
490 chn_intr(sb->rch.channel);
491 sb_lock(sb);
492 }
493
494 sb_rd(sb, DSP_DATA_AVAIL); /* int ack */
495 sb_unlock(sb);
496 }
497
498 static int
499 sb_speed(struct sb_chinfo *ch)
500 {
501 struct sb_info *sb = ch->parent;
502 int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
503 int stereo = (AFMT_CHANNEL(ch->fmt) > 1)? 1 : 0;
504 int speed, tmp, thresh, max;
505 u_char tconst;
506
507 if (sb->bd_id >= 0x300) {
508 thresh = stereo? 11025 : 23000;
509 max = stereo? 22050 : 44100;
510 } else if (sb->bd_id > 0x200) {
511 thresh = play? 23000 : 13000;
512 max = play? 44100 : 15000;
513 } else {
514 thresh = 999999;
515 max = play? 23000 : 13000;
516 }
517
518 speed = ch->spd;
519 if (speed > max)
520 speed = max;
521
522 sb_lock(sb);
523 sb->bd_flags &= ~BD_F_HISPEED;
524 if (speed > thresh)
525 sb->bd_flags |= BD_F_HISPEED;
526
527 tmp = 65536 - (256000000 / (speed << stereo));
528 tconst = tmp >> 8;
529
530 sb_cmd1(sb, 0x40, tconst); /* set time constant */
531
532 speed = (256000000 / (65536 - tmp)) >> stereo;
533
534 ch->spd = speed;
535 sb_unlock(sb);
536 return speed;
537 }
538
539 static int
540 sb_start(struct sb_chinfo *ch)
541 {
542 struct sb_info *sb = ch->parent;
543 int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
544 int stereo = (AFMT_CHANNEL(ch->fmt) > 1)? 1 : 0;
545 int l = ch->blksz;
546 u_char i;
547
548 l--;
549
550 sb_lock(sb);
551 if (play)
552 sb_cmd(sb, DSP_CMD_SPKON);
553
554 if (sb->bd_flags & BD_F_HISPEED)
555 i = play? 0x90 : 0x98;
556 else
557 i = play? 0x1c : 0x2c;
558
559 sb_setmixer(sb, 0x0e, stereo? 2 : 0);
560 sb_cmd2(sb, 0x48, l);
561 sb_cmd(sb, i);
562
563 sb->bd_flags |= BD_F_DMARUN;
564 sb_unlock(sb);
565 return 0;
566 }
567
568 static int
569 sb_stop(struct sb_chinfo *ch)
570 {
571 struct sb_info *sb = ch->parent;
572 int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
573
574 sb_lock(sb);
575 if (sb->bd_flags & BD_F_HISPEED)
576 sb_reset_dsp(sb);
577 else {
578 #if 0
579 /*
580 * NOTE: DSP_CMD_DMAEXIT_8 does not work with old
581 * soundblaster.
582 */
583 sb_cmd(sb, DSP_CMD_DMAEXIT_8);
584 #endif
585 sb_reset_dsp(sb);
586 }
587
588 if (play)
589 sb_cmd(sb, DSP_CMD_SPKOFF); /* speaker off */
590 sb_unlock(sb);
591 sb->bd_flags &= ~BD_F_DMARUN;
592 return 0;
593 }
594
595 /* channel interface */
596 static void *
597 sbchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
598 {
599 struct sb_info *sb = devinfo;
600 struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
601
602 ch->parent = sb;
603 ch->channel = c;
604 ch->dir = dir;
605 ch->buffer = b;
606 if (sndbuf_alloc(ch->buffer, sb->parent_dmat, 0, sb->bufsize) != 0)
607 return NULL;
608 sndbuf_dmasetup(ch->buffer, sb->drq);
609 return ch;
610 }
611
612 static int
613 sbchan_setformat(kobj_t obj, void *data, u_int32_t format)
614 {
615 struct sb_chinfo *ch = data;
616
617 ch->fmt = format;
618 return 0;
619 }
620
621 static u_int32_t
622 sbchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
623 {
624 struct sb_chinfo *ch = data;
625
626 ch->spd = speed;
627 return sb_speed(ch);
628 }
629
630 static u_int32_t
631 sbchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
632 {
633 struct sb_chinfo *ch = data;
634
635 ch->blksz = blocksize;
636 return ch->blksz;
637 }
638
639 static int
640 sbchan_trigger(kobj_t obj, void *data, int go)
641 {
642 struct sb_chinfo *ch = data;
643
644 if (!PCMTRIG_COMMON(go))
645 return 0;
646
647 sndbuf_dma(ch->buffer, go);
648 if (go == PCMTRIG_START)
649 sb_start(ch);
650 else
651 sb_stop(ch);
652 return 0;
653 }
654
655 static u_int32_t
656 sbchan_getptr(kobj_t obj, void *data)
657 {
658 struct sb_chinfo *ch = data;
659
660 return sndbuf_dmaptr(ch->buffer);
661 }
662
663 static struct pcmchan_caps *
664 sbchan_getcaps(kobj_t obj, void *data)
665 {
666 struct sb_chinfo *ch = data;
667 int p = (ch->dir == PCMDIR_PLAY)? 1 : 0;
668
669 if (ch->parent->bd_id == 0x200)
670 return p? &sb200_playcaps : &sb200_reccaps;
671 if (ch->parent->bd_id < 0x300)
672 return p? &sb201_playcaps : &sb201_reccaps;
673 return p? &sbpro_playcaps : &sbpro_reccaps;
674 }
675
676 static kobj_method_t sbchan_methods[] = {
677 KOBJMETHOD(channel_init, sbchan_init),
678 KOBJMETHOD(channel_setformat, sbchan_setformat),
679 KOBJMETHOD(channel_setspeed, sbchan_setspeed),
680 KOBJMETHOD(channel_setblocksize, sbchan_setblocksize),
681 KOBJMETHOD(channel_trigger, sbchan_trigger),
682 KOBJMETHOD(channel_getptr, sbchan_getptr),
683 KOBJMETHOD(channel_getcaps, sbchan_getcaps),
684 KOBJMETHOD_END
685 };
686 CHANNEL_DECLARE(sbchan);
687
688 /************************************************************/
689
690 static int
691 sb_probe(device_t dev)
692 {
693 char buf[64];
694 uintptr_t func, ver, r, f;
695
696 /* The parent device has already been probed. */
697 r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
698 if (func != SCF_PCM)
699 return (ENXIO);
700
701 r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
702 f = (ver & 0xffff0000) >> 16;
703 ver &= 0x0000ffff;
704 if ((f & BD_F_ESS) || (ver >= 0x400))
705 return (ENXIO);
706
707 snprintf(buf, sizeof buf, "SB DSP %d.%02d", (int) ver >> 8, (int) ver & 0xff);
708
709 device_set_desc_copy(dev, buf);
710
711 return 0;
712 }
713
714 static int
715 sb_attach(device_t dev)
716 {
717 struct sb_info *sb;
718 char status[SND_STATUSLEN];
719 uintptr_t ver;
720
721 sb = malloc(sizeof(*sb), M_DEVBUF, M_WAITOK | M_ZERO);
722 sb->parent_dev = device_get_parent(dev);
723 BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
724 sb->bd_id = ver & 0x0000ffff;
725 sb->bd_flags = (ver & 0xffff0000) >> 16;
726 sb->bufsize = pcm_getbuffersize(dev, 4096, SB_DEFAULT_BUFSZ, 65536);
727
728 if (sb_alloc_resources(sb, dev))
729 goto no;
730 if (sb_reset_dsp(sb))
731 goto no;
732 if (mixer_init(dev, (sb->bd_id < 0x300)? &sbmix_mixer_class : &sbpromix_mixer_class, sb))
733 goto no;
734 if (snd_setup_intr(dev, sb->irq, 0, sb_intr, sb, &sb->ih))
735 goto no;
736
737 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
738
739 if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
740 /*boundary*/0,
741 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
742 /*highaddr*/BUS_SPACE_MAXADDR,
743 /*filter*/NULL, /*filterarg*/NULL,
744 /*maxsize*/sb->bufsize, /*nsegments*/1,
745 /*maxsegz*/0x3ffff, /*flags*/0,
746 /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
747 &sb->parent_dmat) != 0) {
748 device_printf(dev, "unable to create dma tag\n");
749 goto no;
750 }
751
752 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld bufsz %u %s",
753 rman_get_start(sb->io_base), rman_get_start(sb->irq),
754 rman_get_start(sb->drq), sb->bufsize, PCM_KLDSTRING(snd_sb8));
755
756 if (pcm_register(dev, sb, 1, 1))
757 goto no;
758 pcm_addchan(dev, PCMDIR_REC, &sbchan_class, sb);
759 pcm_addchan(dev, PCMDIR_PLAY, &sbchan_class, sb);
760
761 pcm_setstatus(dev, status);
762
763 return 0;
764
765 no:
766 sb_release_resources(sb, dev);
767 return ENXIO;
768 }
769
770 static int
771 sb_detach(device_t dev)
772 {
773 int r;
774 struct sb_info *sb;
775
776 r = pcm_unregister(dev);
777 if (r)
778 return r;
779
780 sb = pcm_getdevinfo(dev);
781 sb_release_resources(sb, dev);
782 return 0;
783 }
784
785 static device_method_t sb_methods[] = {
786 /* Device interface */
787 DEVMETHOD(device_probe, sb_probe),
788 DEVMETHOD(device_attach, sb_attach),
789 DEVMETHOD(device_detach, sb_detach),
790
791 { 0, 0 }
792 };
793
794 static driver_t sb_driver = {
795 "pcm",
796 sb_methods,
797 PCM_SOFTC_SIZE,
798 };
799
800 DRIVER_MODULE(snd_sb8, sbc, sb_driver, pcm_devclass, 0, 0);
801 MODULE_DEPEND(snd_sb8, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
802 MODULE_DEPEND(snd_sb8, snd_sbc, 1, 1, 1);
803 MODULE_VERSION(snd_sb8, 1);
804
805
806
807
Cache object: ddbe8578f8b10a631995aa627270078f
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