wss.c revision 1.19 1 /* $NetBSD: wss.c,v 1.19 1997/03/20 06:49:00 mycroft Exp $ */
2
3 /*
4 * Copyright (c) 1994 John Brezak
5 * Copyright (c) 1991-1993 Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the Computer Systems
19 * Engineering Group at Lawrence Berkeley Laboratory.
20 * 4. Neither the name of the University nor of the Laboratory may be used
21 * to endorse or promote products derived from this software without
22 * specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 */
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/errno.h>
41 #include <sys/ioctl.h>
42 #include <sys/syslog.h>
43 #include <sys/device.h>
44 #include <sys/proc.h>
45 #include <sys/buf.h>
46
47 #include <machine/cpu.h>
48 #include <machine/intr.h>
49 #include <machine/pio.h>
50
51 #include <sys/audioio.h>
52 #include <dev/audio_if.h>
53
54 #include <dev/isa/isavar.h>
55 #include <dev/isa/isadmavar.h>
56
57 #include <dev/ic/ad1848reg.h>
58 #include <dev/isa/ad1848var.h>
59 #include <dev/isa/wssreg.h>
60
61 /*
62 * Mixer devices
63 */
64 #define WSS_MIC_IN_LVL 0
65 #define WSS_LINE_IN_LVL 1
66 #define WSS_DAC_LVL 2
67 #define WSS_REC_LVL 3
68 #define WSS_MON_LVL 4
69 #define WSS_MIC_IN_MUTE 5
70 #define WSS_LINE_IN_MUTE 6
71 #define WSS_DAC_MUTE 7
72
73 #define WSS_RECORD_SOURCE 8
74
75 /* Classes */
76 #define WSS_INPUT_CLASS 9
77 #define WSS_RECORD_CLASS 10
78 #define WSS_MONITOR_CLASS 11
79
80 #ifdef AUDIO_DEBUG
81 #define DPRINTF(x) if (wssdebug) printf x
82 int wssdebug = 0;
83 #else
84 #define DPRINTF(x)
85 #endif
86
87 struct wss_softc {
88 struct device sc_dev; /* base device */
89 struct isadev sc_id; /* ISA device */
90 void *sc_ih; /* interrupt vectoring */
91
92 struct ad1848_softc sc_ad1848;
93 #define wss_irq sc_ad1848.sc_irq
94 #define wss_drq sc_ad1848.sc_drq
95
96 int mic_mute, cd_mute, dac_mute;
97 };
98
99 struct audio_device wss_device = {
100 "wss,ad1848",
101 "",
102 "WSS"
103 };
104
105 int wssopen __P((dev_t, int));
106 int wss_getdev __P((void *, struct audio_device *));
107 int wss_setfd __P((void *, int));
108
109 int wss_set_out_port __P((void *, int));
110 int wss_get_out_port __P((void *));
111 int wss_set_in_port __P((void *, int));
112 int wss_get_in_port __P((void *));
113 int wss_mixer_set_port __P((void *, mixer_ctrl_t *));
114 int wss_mixer_get_port __P((void *, mixer_ctrl_t *));
115 int wss_query_devinfo __P((void *, mixer_devinfo_t *));
116
117 static int wss_to_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
118 static int wss_from_vol __P((mixer_ctrl_t *, struct ad1848_volume *));
119 /*
120 * Define our interface to the higher level audio driver.
121 */
122
123 struct audio_hw_if wss_hw_if = {
124 wssopen,
125 ad1848_close,
126 NULL,
127 ad1848_set_in_sr,
128 ad1848_get_in_sr,
129 ad1848_set_out_sr,
130 ad1848_get_out_sr,
131 ad1848_query_encoding,
132 ad1848_set_format,
133 ad1848_get_encoding,
134 ad1848_get_precision,
135 ad1848_set_channels,
136 ad1848_get_channels,
137 ad1848_round_blocksize,
138 wss_set_out_port,
139 wss_get_out_port,
140 wss_set_in_port,
141 wss_get_in_port,
142 ad1848_commit_settings,
143 NULL,
144 NULL,
145 ad1848_dma_output,
146 ad1848_dma_input,
147 ad1848_halt_out_dma,
148 ad1848_halt_in_dma,
149 ad1848_cont_out_dma,
150 ad1848_cont_in_dma,
151 NULL,
152 wss_getdev,
153 wss_setfd,
154 wss_mixer_set_port,
155 wss_mixer_get_port,
156 wss_query_devinfo,
157 0, /* not full-duplex */
158 0
159 };
160
161 int wssprobe __P((struct device *, void *, void *));
162 void wssattach __P((struct device *, struct device *, void *));
163
164 struct cfattach wss_ca = {
165 sizeof(struct wss_softc), wssprobe, wssattach
166 };
167
168 struct cfdriver wss_cd = {
169 NULL, "wss", DV_DULL
170 };
171
172 /*
173 * Probe for the Microsoft Sound System hardware.
174 */
175 int
176 wssprobe(parent, match, aux)
177 struct device *parent;
178 void *match, *aux;
179 {
180 register struct wss_softc *sc = match;
181 register struct isa_attach_args *ia = aux;
182 register int iobase = ia->ia_iobase;
183 static u_char interrupt_bits[12] = {
184 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20
185 };
186 static u_char dma_bits[4] = {1, 2, 0, 3};
187
188 if (!WSS_BASE_VALID(ia->ia_iobase)) {
189 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase));
190 return 0;
191 }
192
193 sc->sc_ad1848.sc_iobase = iobase + WSS_CODEC;
194
195 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */
196 if (ad1848_probe(&sc->sc_ad1848) == 0)
197 return 0;
198
199 ia->ia_iosize = WSS_NPORT;
200
201 /* Setup WSS interrupt and DMA */
202 if (!WSS_DRQ_VALID(ia->ia_drq)) {
203 DPRINTF(("wss: configured dma chan %d invalid\n", ia->ia_drq));
204 return 0;
205 }
206 sc->wss_drq = ia->ia_drq;
207
208 #ifdef NEWCONFIG
209 /*
210 * If the IRQ wasn't compiled in, auto-detect it.
211 */
212 if (ia->ia_irq == IRQUNK) {
213 ia->ia_irq = isa_discoverintr(ad1848_forceintr, &sc->sc_ad1848);
214 if (!WSS_IRQ_VALID(ia->ia_irq)) {
215 printf("wss: couldn't auto-detect interrupt\n");
216 return 0;
217 }
218 }
219 else
220 #endif
221 if (!WSS_IRQ_VALID(ia->ia_irq)) {
222 DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq));
223 return 0;
224 }
225
226 sc->wss_irq = ia->ia_irq;
227
228 outb(iobase+WSS_CONFIG,
229 (interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq]));
230
231 return 1;
232 }
233
234 /*
235 * Attach hardware to driver, attach hardware driver to audio
236 * pseudo-device driver .
237 */
238 void
239 wssattach(parent, self, aux)
240 struct device *parent, *self;
241 void *aux;
242 {
243 register struct wss_softc *sc = (struct wss_softc *)self;
244 struct isa_attach_args *ia = (struct isa_attach_args *)aux;
245 register int iobase = ia->ia_iobase;
246 int err;
247
248 sc->sc_ad1848.sc_recdrq = ia->ia_drq;
249
250 #ifdef NEWCONFIG
251 isa_establish(&sc->sc_id, &sc->sc_dev);
252 #endif
253 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_AUDIO,
254 ad1848_intr, &sc->sc_ad1848);
255
256 ad1848_attach(&sc->sc_ad1848);
257
258 printf(" (vers %d)", inb(iobase+WSS_STATUS) & WSS_VERSMASK);
259 printf("\n");
260
261 sc->sc_ad1848.parent = sc;
262
263 if ((err = audio_hardware_attach(&wss_hw_if, &sc->sc_ad1848)) != 0)
264 printf("wss: could not attach to audio pseudo-device driver (%d)\n", err);
265 }
266
267 static int
268 wss_to_vol(cp, vol)
269 mixer_ctrl_t *cp;
270 struct ad1848_volume *vol;
271 {
272 if (cp->un.value.num_channels == 1) {
273 vol->left = vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
274 return(1);
275 }
276 else if (cp->un.value.num_channels == 2) {
277 vol->left = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
278 vol->right = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
279 return(1);
280 }
281 return(0);
282 }
283
284 static int
285 wss_from_vol(cp, vol)
286 mixer_ctrl_t *cp;
287 struct ad1848_volume *vol;
288 {
289 if (cp->un.value.num_channels == 1) {
290 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol->left;
291 return(1);
292 }
293 else if (cp->un.value.num_channels == 2) {
294 cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = vol->left;
295 cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = vol->right;
296 return(1);
297 }
298 return(0);
299 }
300
301 int
302 wssopen(dev, flags)
303 dev_t dev;
304 int flags;
305 {
306 struct wss_softc *sc;
307 int unit = AUDIOUNIT(dev);
308
309 if (unit >= wss_cd.cd_ndevs)
310 return ENODEV;
311
312 sc = wss_cd.cd_devs[unit];
313 if (!sc)
314 return ENXIO;
315
316 return ad1848_open(&sc->sc_ad1848, dev, flags);
317 }
318
319 int
320 wss_getdev(addr, retp)
321 void *addr;
322 struct audio_device *retp;
323 {
324 *retp = wss_device;
325 return 0;
326 }
327
328 int
329 wss_setfd(addr, flag)
330 void *addr;
331 int flag;
332 {
333 /* Can't do full-duplex */
334 return(ENOTTY);
335 }
336
337
338 int
339 wss_set_out_port(addr, port)
340 void *addr;
341 int port;
342 {
343 DPRINTF(("wss_set_out_port:\n"));
344 return(EINVAL);
345 }
346
347 int
348 wss_get_out_port(addr)
349 void *addr;
350 {
351 DPRINTF(("wss_get_out_port:\n"));
352 return(WSS_DAC_LVL);
353 }
354
355 int
356 wss_set_in_port(addr, port)
357 void *addr;
358 int port;
359 {
360 register struct ad1848_softc *ac = addr;
361
362 DPRINTF(("wss_set_in_port: %d\n", port));
363
364 switch(port) {
365 case WSS_MIC_IN_LVL:
366 port = MIC_IN_PORT;
367 break;
368 case WSS_LINE_IN_LVL:
369 port = LINE_IN_PORT;
370 break;
371 case WSS_DAC_LVL:
372 port = DAC_IN_PORT;
373 break;
374 default:
375 return(EINVAL);
376 /*NOTREACHED*/
377 }
378
379 return(ad1848_set_rec_port(ac, port));
380 }
381
382 int
383 wss_get_in_port(addr)
384 void *addr;
385 {
386 register struct ad1848_softc *ac = addr;
387 int port = WSS_MIC_IN_LVL;
388
389 switch(ad1848_get_rec_port(ac)) {
390 case MIC_IN_PORT:
391 port = WSS_MIC_IN_LVL;
392 break;
393 case LINE_IN_PORT:
394 port = WSS_LINE_IN_LVL;
395 break;
396 case DAC_IN_PORT:
397 port = WSS_DAC_LVL;
398 break;
399 }
400
401 DPRINTF(("wss_get_in_port: %d\n", port));
402
403 return(port);
404 }
405
406 int
407 wss_mixer_set_port(addr, cp)
408 void *addr;
409 mixer_ctrl_t *cp;
410 {
411 register struct ad1848_softc *ac = addr;
412 register struct wss_softc *sc = ac->parent;
413 struct ad1848_volume vol;
414 int error = EINVAL;
415
416 DPRINTF(("wss_mixer_set_port: dev=%d type=%d\n", cp->dev, cp->type));
417
418 switch (cp->dev) {
419 case WSS_MIC_IN_LVL: /* Microphone */
420 if (cp->type == AUDIO_MIXER_VALUE) {
421 if (wss_to_vol(cp, &vol))
422 error = ad1848_set_aux2_gain(ac, &vol);
423 }
424 break;
425
426 case WSS_MIC_IN_MUTE: /* Microphone */
427 if (cp->type == AUDIO_MIXER_ENUM) {
428 sc->mic_mute = cp->un.ord;
429 DPRINTF(("mic mute %d\n", cp->un.ord));
430 error = 0;
431 }
432 break;
433
434 case WSS_LINE_IN_LVL: /* linein/CD */
435 if (cp->type == AUDIO_MIXER_VALUE) {
436 if (wss_to_vol(cp, &vol))
437 error = ad1848_set_aux1_gain(ac, &vol);
438 }
439 break;
440
441 case WSS_LINE_IN_MUTE: /* linein/CD */
442 if (cp->type == AUDIO_MIXER_ENUM) {
443 sc->cd_mute = cp->un.ord;
444 DPRINTF(("CD mute %d\n", cp->un.ord));
445 error = 0;
446 }
447 break;
448
449 case WSS_DAC_LVL: /* dac out */
450 if (cp->type == AUDIO_MIXER_VALUE) {
451 if (wss_to_vol(cp, &vol))
452 error = ad1848_set_out_gain(ac, &vol);
453 }
454 break;
455
456 case WSS_DAC_MUTE: /* dac out */
457 if (cp->type == AUDIO_MIXER_ENUM) {
458 sc->dac_mute = cp->un.ord;
459 DPRINTF(("DAC mute %d\n", cp->un.ord));
460 error = 0;
461 }
462 break;
463
464 case WSS_REC_LVL: /* record level */
465 if (cp->type == AUDIO_MIXER_VALUE) {
466 if (wss_to_vol(cp, &vol))
467 error = ad1848_set_rec_gain(ac, &vol);
468 }
469 break;
470
471 case WSS_RECORD_SOURCE:
472 if (cp->type == AUDIO_MIXER_ENUM) {
473 error = ad1848_set_rec_port(ac, cp->un.ord);
474 }
475 break;
476
477 case WSS_MON_LVL:
478 if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
479 vol.left = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
480 error = ad1848_set_mon_gain(ac, &vol);
481 }
482 break;
483
484 default:
485 return ENXIO;
486 /*NOTREACHED*/
487 }
488
489 return 0;
490 }
491
492 int
493 wss_mixer_get_port(addr, cp)
494 void *addr;
495 mixer_ctrl_t *cp;
496 {
497 register struct ad1848_softc *ac = addr;
498 register struct wss_softc *sc = ac->parent;
499 struct ad1848_volume vol;
500 int error = EINVAL;
501
502 DPRINTF(("wss_mixer_get_port: port=%d\n", cp->dev));
503
504 switch (cp->dev) {
505 case WSS_MIC_IN_LVL: /* Microphone */
506 if (cp->type == AUDIO_MIXER_VALUE) {
507 error = ad1848_get_aux2_gain(ac, &vol);
508 if (!error)
509 wss_from_vol(cp, &vol);
510 }
511 break;
512
513 case WSS_MIC_IN_MUTE:
514 if (cp->type == AUDIO_MIXER_ENUM) {
515 cp->un.ord = sc->mic_mute;
516 error = 0;
517 }
518 break;
519
520 case WSS_LINE_IN_LVL: /* linein/CD */
521 if (cp->type == AUDIO_MIXER_VALUE) {
522 error = ad1848_get_aux1_gain(ac, &vol);
523 if (!error)
524 wss_from_vol(cp, &vol);
525 }
526 break;
527
528 case WSS_LINE_IN_MUTE:
529 if (cp->type == AUDIO_MIXER_ENUM) {
530 cp->un.ord = sc->cd_mute;
531 error = 0;
532 }
533 break;
534
535 case WSS_DAC_LVL: /* dac out */
536 if (cp->type == AUDIO_MIXER_VALUE) {
537 error = ad1848_get_out_gain(ac, &vol);
538 if (!error)
539 wss_from_vol(cp, &vol);
540 }
541 break;
542
543 case WSS_DAC_MUTE:
544 if (cp->type == AUDIO_MIXER_ENUM) {
545 cp->un.ord = sc->dac_mute;
546 error = 0;
547 }
548 break;
549
550 case WSS_REC_LVL: /* record level */
551 if (cp->type == AUDIO_MIXER_VALUE) {
552 error = ad1848_get_rec_gain(ac, &vol);
553 if (!error)
554 wss_from_vol(cp, &vol);
555 }
556 break;
557
558 case WSS_RECORD_SOURCE:
559 if (cp->type == AUDIO_MIXER_ENUM) {
560 cp->un.ord = ad1848_get_rec_port(ac);
561 error = 0;
562 }
563 break;
564
565 case WSS_MON_LVL: /* monitor level */
566 if (cp->type == AUDIO_MIXER_VALUE && cp->un.value.num_channels == 1) {
567 error = ad1848_get_mon_gain(ac, &vol);
568 if (!error)
569 cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = vol.left;
570 }
571 break;
572
573 default:
574 error = ENXIO;
575 break;
576 }
577
578 return(error);
579 }
580
581 int
582 wss_query_devinfo(addr, dip)
583 void *addr;
584 register mixer_devinfo_t *dip;
585 {
586 DPRINTF(("wss_query_devinfo: index=%d\n", dip->index));
587
588 switch(dip->index) {
589 case WSS_MIC_IN_LVL: /* Microphone */
590 dip->type = AUDIO_MIXER_VALUE;
591 dip->mixer_class = WSS_INPUT_CLASS;
592 dip->prev = AUDIO_MIXER_LAST;
593 dip->next = WSS_MIC_IN_MUTE;
594 strcpy(dip->label.name, AudioNmicrophone);
595 dip->un.v.num_channels = 2;
596 strcpy(dip->un.v.units.name, AudioNvolume);
597 break;
598
599 case WSS_LINE_IN_LVL: /* line/CD */
600 dip->type = AUDIO_MIXER_VALUE;
601 dip->mixer_class = WSS_INPUT_CLASS;
602 dip->prev = AUDIO_MIXER_LAST;
603 dip->next = WSS_LINE_IN_MUTE;
604 strcpy(dip->label.name, AudioNcd);
605 dip->un.v.num_channels = 2;
606 strcpy(dip->un.v.units.name, AudioNvolume);
607 break;
608
609 case WSS_DAC_LVL: /* dacout */
610 dip->type = AUDIO_MIXER_VALUE;
611 dip->mixer_class = WSS_INPUT_CLASS;
612 dip->prev = AUDIO_MIXER_LAST;
613 dip->next = WSS_DAC_MUTE;
614 strcpy(dip->label.name, AudioNdac);
615 dip->un.v.num_channels = 2;
616 strcpy(dip->un.v.units.name, AudioNvolume);
617 break;
618
619 case WSS_REC_LVL: /* record level */
620 dip->type = AUDIO_MIXER_VALUE;
621 dip->mixer_class = WSS_RECORD_CLASS;
622 dip->prev = AUDIO_MIXER_LAST;
623 dip->next = WSS_RECORD_SOURCE;
624 strcpy(dip->label.name, AudioNrecord);
625 dip->un.v.num_channels = 2;
626 strcpy(dip->un.v.units.name, AudioNvolume);
627 break;
628
629 case WSS_MON_LVL: /* monitor level */
630 dip->type = AUDIO_MIXER_VALUE;
631 dip->mixer_class = WSS_MONITOR_CLASS;
632 dip->next = dip->prev = AUDIO_MIXER_LAST;
633 strcpy(dip->label.name, AudioNmonitor);
634 dip->un.v.num_channels = 1;
635 strcpy(dip->un.v.units.name, AudioNvolume);
636 break;
637
638 case WSS_INPUT_CLASS: /* input class descriptor */
639 dip->type = AUDIO_MIXER_CLASS;
640 dip->mixer_class = WSS_INPUT_CLASS;
641 dip->next = dip->prev = AUDIO_MIXER_LAST;
642 strcpy(dip->label.name, AudioCInputs);
643 break;
644
645 case WSS_MONITOR_CLASS: /* monitor class descriptor */
646 dip->type = AUDIO_MIXER_CLASS;
647 dip->mixer_class = WSS_MONITOR_CLASS;
648 dip->next = dip->prev = AUDIO_MIXER_LAST;
649 strcpy(dip->label.name, AudioNmonitor);
650 break;
651
652 case WSS_RECORD_CLASS: /* record source class */
653 dip->type = AUDIO_MIXER_CLASS;
654 dip->mixer_class = WSS_RECORD_CLASS;
655 dip->next = dip->prev = AUDIO_MIXER_LAST;
656 strcpy(dip->label.name, AudioNrecord);
657 break;
658
659 case WSS_MIC_IN_MUTE:
660 dip->mixer_class = WSS_INPUT_CLASS;
661 dip->type = AUDIO_MIXER_ENUM;
662 dip->prev = WSS_MIC_IN_LVL;
663 dip->next = AUDIO_MIXER_LAST;
664 goto mute;
665
666 case WSS_LINE_IN_MUTE:
667 dip->mixer_class = WSS_INPUT_CLASS;
668 dip->type = AUDIO_MIXER_ENUM;
669 dip->prev = WSS_LINE_IN_LVL;
670 dip->next = AUDIO_MIXER_LAST;
671 goto mute;
672
673 case WSS_DAC_MUTE:
674 dip->mixer_class = WSS_INPUT_CLASS;
675 dip->type = AUDIO_MIXER_ENUM;
676 dip->prev = WSS_DAC_LVL;
677 dip->next = AUDIO_MIXER_LAST;
678 mute:
679 strcpy(dip->label.name, AudioNmute);
680 dip->un.e.num_mem = 2;
681 strcpy(dip->un.e.member[0].label.name, AudioNoff);
682 dip->un.e.member[0].ord = 0;
683 strcpy(dip->un.e.member[1].label.name, AudioNon);
684 dip->un.e.member[1].ord = 1;
685 break;
686
687 case WSS_RECORD_SOURCE:
688 dip->mixer_class = WSS_RECORD_CLASS;
689 dip->type = AUDIO_MIXER_ENUM;
690 dip->prev = WSS_REC_LVL;
691 dip->next = AUDIO_MIXER_LAST;
692 strcpy(dip->label.name, AudioNsource);
693 dip->un.e.num_mem = 3;
694 strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
695 dip->un.e.member[0].ord = WSS_MIC_IN_LVL;
696 strcpy(dip->un.e.member[1].label.name, AudioNcd);
697 dip->un.e.member[1].ord = WSS_LINE_IN_LVL;
698 strcpy(dip->un.e.member[2].label.name, AudioNdac);
699 dip->un.e.member[2].ord = WSS_DAC_LVL;
700 break;
701
702 default:
703 return ENXIO;
704 /*NOTREACHED*/
705 }
706 DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
707
708 return 0;
709 }
710