xref: /netbsd-src/sys/dev/ic/cs4231.c (revision 23c8222edbfb0f0932d88a8351d3a0cf817dfb9e)
1 /*	$NetBSD: cs4231.c,v 1.16 2004/07/09 18:45:56 petrov Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Paul Kranenburg.
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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: cs4231.c,v 1.16 2004/07/09 18:45:56 petrov Exp $");
41 
42 #include "audio.h"
43 #if NAUDIO > 0
44 
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/errno.h>
48 #include <sys/device.h>
49 #include <sys/malloc.h>
50 
51 #include <machine/autoconf.h>
52 #include <machine/cpu.h>
53 
54 #include <sys/audioio.h>
55 #include <dev/audio_if.h>
56 
57 #include <dev/ic/ad1848reg.h>
58 #include <dev/ic/cs4231reg.h>
59 #include <dev/ic/ad1848var.h>
60 #include <dev/ic/cs4231var.h>
61 
62 /*---*/
63 #define CSAUDIO_DAC_LVL		0
64 #define CSAUDIO_LINE_IN_LVL	1
65 #define CSAUDIO_MONO_LVL	2
66 #define CSAUDIO_CD_LVL		3
67 #define CSAUDIO_OUTPUT_LVL	4
68 #define CSAUDIO_OUT_LVL		5
69 #define CSAUDIO_LINE_IN_MUTE	6
70 #define CSAUDIO_DAC_MUTE	7
71 #define CSAUDIO_CD_MUTE		8
72 #define CSAUDIO_MONO_MUTE	9
73 #define CSAUDIO_OUTPUT_MUTE	10
74 #define CSAUDIO_OUT_MUTE	11
75 #define CSAUDIO_REC_LVL		12
76 #define CSAUDIO_RECORD_SOURCE	13
77 
78 #define CSAUDIO_INPUT_CLASS	14
79 #define CSAUDIO_MONITOR_CLASS	15
80 #define CSAUDIO_RECORD_CLASS	16
81 
82 #ifdef AUDIO_DEBUG
83 int     cs4231_debug = 0;
84 #define DPRINTF(x)      if (cs4231_debug) printf x
85 #else
86 #define DPRINTF(x)
87 #endif
88 
89 struct audio_device cs4231_device = {
90 	"cs4231",
91 	"x",
92 	"audio"
93 };
94 
95 
96 /* ad1848 sc_{read,write}reg */
97 static int	cs4231_read(struct ad1848_softc *, int);
98 static void	cs4231_write(struct ad1848_softc *, int, int);
99 
100 int
101 cs4231_read(sc, index)
102 	struct ad1848_softc	*sc;
103 	int			index;
104 {
105 
106 	return bus_space_read_1(sc->sc_iot, sc->sc_ioh, (index << 2));
107 }
108 
109 void
110 cs4231_write(sc, index, value)
111 	struct ad1848_softc	*sc;
112 	int			index, value;
113 {
114 
115 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, (index << 2), value);
116 }
117 
118 
119 void
120 cs4231_common_attach(sc, ioh)
121 	struct cs4231_softc *sc;
122 	bus_space_handle_t ioh;
123 {
124 	char *buf;
125 	int reg;
126 
127 	sc->sc_ad1848.parent = sc;
128 	sc->sc_ad1848.sc_iot = sc->sc_bustag;
129 	sc->sc_ad1848.sc_ioh = ioh;
130 	sc->sc_ad1848.sc_readreg = cs4231_read;
131 	sc->sc_ad1848.sc_writereg = cs4231_write;
132 
133 	sc->sc_playback.t_name = "playback";
134 	sc->sc_capture.t_name = "capture";
135 
136 	evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR,
137 			     NULL,
138 			     sc->sc_ad1848.sc_dev.dv_xname, "total");
139 
140 	evcnt_attach_dynamic(&sc->sc_playback.t_intrcnt, EVCNT_TYPE_INTR,
141 			     &sc->sc_intrcnt,
142 			     sc->sc_ad1848.sc_dev.dv_xname, "playback");
143 
144 	evcnt_attach_dynamic(&sc->sc_playback.t_ierrcnt, EVCNT_TYPE_INTR,
145 			     &sc->sc_intrcnt,
146 			     sc->sc_ad1848.sc_dev.dv_xname, "perrors");
147 
148 	evcnt_attach_dynamic(&sc->sc_capture.t_intrcnt, EVCNT_TYPE_INTR,
149 			     &sc->sc_intrcnt,
150 			     sc->sc_ad1848.sc_dev.dv_xname, "capture");
151 
152 	evcnt_attach_dynamic(&sc->sc_capture.t_ierrcnt, EVCNT_TYPE_INTR,
153 			     &sc->sc_intrcnt,
154 			     sc->sc_ad1848.sc_dev.dv_xname, "cerrors");
155 
156 	/* put chip in native mode to access (extended) ID register */
157 	reg = ad_read(&sc->sc_ad1848, SP_MISC_INFO);
158 	ad_write(&sc->sc_ad1848, SP_MISC_INFO, reg | MODE2);
159 
160 	/* read version numbers from I25 */
161 	reg = ad_read(&sc->sc_ad1848, CS_VERSION_ID);
162 	switch (reg & (CS_VERSION_NUMBER | CS_VERSION_CHIPID)) {
163 	case 0xa0:
164 		sc->sc_ad1848.chip_name = "CS4231A";
165 		break;
166 	case 0x80:
167 		sc->sc_ad1848.chip_name = "CS4231";
168 		break;
169 	case 0x82:
170 		sc->sc_ad1848.chip_name = "CS4232";
171 		break;
172 	default:
173 		if ((buf = malloc(32, M_TEMP, M_NOWAIT)) != NULL) {
174 			snprintf(buf, 32, "unknown rev: %x/%x",
175 			    reg&0xe0, reg&7);
176 			sc->sc_ad1848.chip_name = buf;
177 		}
178 	}
179 
180 	sc->sc_ad1848.mode = 2;	/* put ad1848 driver in `MODE 2' mode */
181 	ad1848_attach(&sc->sc_ad1848);
182 }
183 
184 void *
185 cs4231_malloc(addr, direction, size, pool, flags)
186 	void *addr;
187 	int direction;
188 	size_t size;
189 	struct malloc_type *pool;
190 	int flags;
191 {
192 	struct cs4231_softc *sc = addr;
193 	bus_dma_tag_t dmatag = sc->sc_dmatag;
194 	struct cs_dma *p;
195 
196 	p = malloc(sizeof(*p), pool, flags);
197 	if (p == NULL)
198 		return (NULL);
199 
200 	/* Allocate a DMA map */
201 	if (bus_dmamap_create(dmatag, size, 1, size, 0,
202 				BUS_DMA_NOWAIT, &p->dmamap) != 0)
203 		goto fail1;
204 
205 	/* Allocate DMA memory */
206 	p->size = size;
207 	if (bus_dmamem_alloc(dmatag, size, 64*1024, 0,
208 				p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
209 				&p->nsegs, BUS_DMA_NOWAIT) != 0)
210 		goto fail2;
211 
212 	/* Map DMA memory into kernel space */
213 	if (bus_dmamem_map(dmatag, p->segs, p->nsegs, p->size,
214 			   &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT) != 0)
215 		goto fail3;
216 
217 	/* Load the buffer */
218 	if (bus_dmamap_load(dmatag, p->dmamap,
219 			    p->addr, size, NULL, BUS_DMA_NOWAIT) != 0)
220 		goto fail4;
221 
222 	p->next = sc->sc_dmas;
223 	sc->sc_dmas = p;
224 	return (p->addr);
225 
226 fail4:
227 	bus_dmamem_unmap(dmatag, p->addr, p->size);
228 fail3:
229 	bus_dmamem_free(dmatag, p->segs, p->nsegs);
230 fail2:
231 	bus_dmamap_destroy(dmatag, p->dmamap);
232 fail1:
233 	free(p, pool);
234 	return (NULL);
235 }
236 
237 void
238 cs4231_free(addr, ptr, pool)
239 	void *addr;
240 	void *ptr;
241 	struct malloc_type *pool;
242 {
243 	struct cs4231_softc *sc = addr;
244 	bus_dma_tag_t dmatag = sc->sc_dmatag;
245 	struct cs_dma *p, **pp;
246 
247 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &(*pp)->next) {
248 		if (p->addr != ptr)
249 			continue;
250 		bus_dmamap_unload(dmatag, p->dmamap);
251 		bus_dmamem_unmap(dmatag, p->addr, p->size);
252 		bus_dmamem_free(dmatag, p->segs, p->nsegs);
253 		bus_dmamap_destroy(dmatag, p->dmamap);
254 		*pp = p->next;
255 		free(p, pool);
256 		return;
257 	}
258 	printf("cs4231_free: rogue pointer\n");
259 }
260 
261 
262 /*
263  * Set up transfer and return DMA address and byte count in paddr and psize
264  * for bus dependent trigger_{in,out}put to load into the DMA controller.
265  */
266 int
267 cs4231_transfer_init(sc, t, paddr, psize, start, end, blksize, intr, arg)
268 	struct cs4231_softc *sc;
269 	struct cs_transfer *t;
270 	bus_addr_t *paddr;
271 	bus_size_t *psize;
272 	void *start, *end;
273 	int blksize;
274 	void (*intr)(void *);
275 	void *arg;
276 {
277 	struct cs_dma *p;
278 	vsize_t n;
279 
280 	if (t->t_active) {
281 		printf("%s: %s already running\n",
282 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name);
283 		return (EINVAL);
284 	}
285 
286 	t->t_intr = intr;
287 	t->t_arg = arg;
288 
289 	for (p = sc->sc_dmas; p != NULL && p->addr != start; p = p->next)
290 		continue;
291 	if (p == NULL) {
292 		printf("%s: bad %s addr %p\n",
293 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name, start);
294 		return (EINVAL);
295 	}
296 
297 	n = (char *)end - (char *)start;
298 
299 	t->t_dma = p;		/* the DMA memory segment */
300 	t->t_segsz = n;		/* size of DMA segment */
301 	t->t_blksz = blksize;	/* do transfers in blksize chunks */
302 
303 	if (n > t->t_blksz)
304 		n = t->t_blksz;
305 
306 	t->t_cnt = n;
307 
308 	/* for caller to load into DMA controller */
309 	*paddr = t->t_dma->dmamap->dm_segs[0].ds_addr;
310 	*psize = n;
311 
312 	DPRINTF(("%s: init %s: [%p..%p] %lu bytes %lu blocks;"
313 		 " DMA at 0x%lx count %lu\n",
314 		 sc->sc_ad1848.sc_dev.dv_xname, t->t_name,
315 		 start, end, (u_long)t->t_segsz, (u_long)t->t_blksz,
316 		 (u_long)*paddr, (u_long)*psize));
317 
318 	t->t_active = 1;
319 	return (0);
320 }
321 
322 /*
323  * Compute next DMA address/counter, update transfer status.
324  */
325 void
326 cs4231_transfer_advance(t, paddr, psize)
327 	struct cs_transfer *t;
328 	bus_addr_t *paddr;
329 	bus_size_t *psize;
330 {
331 	bus_addr_t dmabase, nextaddr;
332 	bus_size_t togo;
333 
334 	dmabase = t->t_dma->dmamap->dm_segs[0].ds_addr;
335 
336 	togo = t->t_segsz - t->t_cnt;
337 	if (togo == 0) {	/* roll over */
338 		nextaddr = dmabase;
339 		t->t_cnt = togo = t->t_blksz;
340 	} else {
341 		nextaddr = dmabase + t->t_cnt;
342 		if (togo > t->t_blksz)
343 			togo = t->t_blksz;
344 		t->t_cnt += togo;
345 	}
346 
347 	/* for caller to load into DMA controller */
348 	*paddr = nextaddr;
349 	*psize = togo;
350 }
351 
352 
353 int
354 cs4231_open(addr, flags)
355 	void *addr;
356 	int flags;
357 {
358 	struct cs4231_softc *sc = addr;
359 
360 	DPRINTF(("sa_open: unit %p\n", sc));
361 
362 	sc->sc_playback.t_active = 0;
363 	sc->sc_playback.t_intr = NULL;
364 	sc->sc_playback.t_arg = NULL;
365 
366 	sc->sc_capture.t_active = 0;
367 	sc->sc_capture.t_intr = NULL;
368 	sc->sc_capture.t_arg = NULL;
369 
370 	/* no interrupts from ad1848 */
371 	ad_write(&sc->sc_ad1848, SP_PIN_CONTROL, 0);
372 	ad1848_reset(&sc->sc_ad1848);
373 
374 	DPRINTF(("sa_open: ok -> sc=%p\n", sc));
375 	return (0);
376 }
377 
378 void
379 cs4231_close(addr)
380 	void *addr;
381 {
382 
383 	DPRINTF(("sa_close: sc=%p\n", addr));
384 
385 	/* audio(9) already called halt methods */
386 
387 	DPRINTF(("sa_close: closed.\n"));
388 }
389 
390 int
391 cs4231_getdev(addr, retp)
392         void *addr;
393         struct audio_device *retp;
394 {
395 
396         *retp = cs4231_device;
397         return (0);
398 }
399 
400 static ad1848_devmap_t csmapping[] = {
401 	{ CSAUDIO_DAC_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
402 	{ CSAUDIO_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
403 	{ CSAUDIO_MONO_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
404 	{ CSAUDIO_CD_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
405 	{ CSAUDIO_OUTPUT_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
406 	{ CSAUDIO_OUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
407 	{ CSAUDIO_DAC_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
408 	{ CSAUDIO_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
409 	{ CSAUDIO_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
410 	{ CSAUDIO_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
411 	{ CSAUDIO_OUTPUT_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
412 	{ CSAUDIO_OUT_MUTE, AD1848_KIND_MUTE, AD1848_OUT_CHANNEL },
413 	{ CSAUDIO_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
414 	{ CSAUDIO_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 }
415 };
416 
417 static int nummap = sizeof(csmapping) / sizeof(csmapping[0]);
418 
419 
420 int
421 cs4231_set_port(addr, cp)
422 	void *addr;
423 	mixer_ctrl_t *cp;
424 {
425 	struct ad1848_softc *ac = addr;
426 
427 	DPRINTF(("cs4231_set_port: port=%d", cp->dev));
428 	return (ad1848_mixer_set_port(ac, csmapping, nummap, cp));
429 }
430 
431 int
432 cs4231_get_port(addr, cp)
433 	void *addr;
434 	mixer_ctrl_t *cp;
435 {
436 	struct ad1848_softc *ac = addr;
437 
438 	DPRINTF(("cs4231_get_port: port=%d", cp->dev));
439 	return (ad1848_mixer_get_port(ac, csmapping, nummap, cp));
440 }
441 
442 int
443 cs4231_get_props(addr)
444 	void *addr;
445 {
446 
447 	return (AUDIO_PROP_FULLDUPLEX);
448 }
449 
450 int
451 cs4231_query_devinfo(addr, dip)
452 	void *addr;
453 	mixer_devinfo_t *dip;
454 {
455 
456 	switch(dip->index) {
457 
458 	case CSAUDIO_DAC_LVL:		/*  dacout */
459 		dip->type = AUDIO_MIXER_VALUE;
460 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
461 		dip->prev = AUDIO_MIXER_LAST;
462 		dip->next = CSAUDIO_DAC_MUTE;
463 		strcpy(dip->label.name, AudioNdac);
464 		dip->un.v.num_channels = 2;
465 		strcpy(dip->un.v.units.name, AudioNvolume);
466 		break;
467 
468 	case CSAUDIO_LINE_IN_LVL:	/* line */
469 		dip->type = AUDIO_MIXER_VALUE;
470 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
471 		dip->prev = AUDIO_MIXER_LAST;
472 		dip->next = CSAUDIO_LINE_IN_MUTE;
473 		strcpy(dip->label.name, AudioNline);
474 		dip->un.v.num_channels = 2;
475 		strcpy(dip->un.v.units.name, AudioNvolume);
476 		break;
477 
478 	case CSAUDIO_MONO_LVL:	/* mono/microphone mixer */
479 		dip->type = AUDIO_MIXER_VALUE;
480 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
481 		dip->prev = AUDIO_MIXER_LAST;
482 		dip->next = CSAUDIO_MONO_MUTE;
483 		strcpy(dip->label.name, AudioNmicrophone);
484 		dip->un.v.num_channels = 1;
485 		strcpy(dip->un.v.units.name, AudioNvolume);
486 		break;
487 
488 	case CSAUDIO_CD_LVL:		/* cd */
489 		dip->type = AUDIO_MIXER_VALUE;
490 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
491 		dip->prev = AUDIO_MIXER_LAST;
492 		dip->next = CSAUDIO_CD_MUTE;
493 		strcpy(dip->label.name, AudioNcd);
494 		dip->un.v.num_channels = 2;
495 		strcpy(dip->un.v.units.name, AudioNvolume);
496 		break;
497 
498 
499 	case CSAUDIO_OUTPUT_LVL:	/* monitor level */
500 		dip->type = AUDIO_MIXER_VALUE;
501 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
502 		dip->next = CSAUDIO_OUTPUT_MUTE;
503 		dip->prev = AUDIO_MIXER_LAST;
504 		strcpy(dip->label.name, AudioNmonitor);
505 		dip->un.v.num_channels = 1;
506 		strcpy(dip->un.v.units.name, AudioNvolume);
507 		break;
508 
509 	case CSAUDIO_OUT_LVL:		/* cs4231 output volume */
510 		dip->type = AUDIO_MIXER_VALUE;
511 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
512 		dip->next = dip->prev = AUDIO_MIXER_LAST;
513 		strcpy(dip->label.name, AudioNmaster);
514 		dip->un.v.num_channels = 2;
515 		strcpy(dip->un.v.units.name, AudioNvolume);
516 		break;
517 
518 	case CSAUDIO_OUT_MUTE: /* mute built-in speaker */
519 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
520 		dip->type = AUDIO_MIXER_ENUM;
521 		dip->prev = CSAUDIO_MONITOR_CLASS;
522 		dip->next = AUDIO_MIXER_LAST;
523 		strcpy(dip->label.name, AudioNmono);
524 		/* names reversed, this is a "mute" value used as "mono enabled" */
525 		dip->un.e.num_mem = 2;
526 		strcpy(dip->un.e.member[0].label.name, AudioNon);
527 		dip->un.e.member[0].ord = 0;
528 		strcpy(dip->un.e.member[1].label.name, AudioNoff);
529 		dip->un.e.member[1].ord = 1;
530 		break;
531 
532 	case CSAUDIO_LINE_IN_MUTE:
533 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
534 		dip->type = AUDIO_MIXER_ENUM;
535 		dip->prev = CSAUDIO_LINE_IN_LVL;
536 		dip->next = AUDIO_MIXER_LAST;
537 		goto mute;
538 
539 	case CSAUDIO_DAC_MUTE:
540 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
541 		dip->type = AUDIO_MIXER_ENUM;
542 		dip->prev = CSAUDIO_DAC_LVL;
543 		dip->next = AUDIO_MIXER_LAST;
544 		goto mute;
545 
546 	case CSAUDIO_CD_MUTE:
547 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
548 		dip->type = AUDIO_MIXER_ENUM;
549 		dip->prev = CSAUDIO_CD_LVL;
550 		dip->next = AUDIO_MIXER_LAST;
551 		goto mute;
552 
553 	case CSAUDIO_MONO_MUTE:
554 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
555 		dip->type = AUDIO_MIXER_ENUM;
556 		dip->prev = CSAUDIO_MONO_LVL;
557 		dip->next = AUDIO_MIXER_LAST;
558 		goto mute;
559 
560 	case CSAUDIO_OUTPUT_MUTE:
561 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
562 		dip->type = AUDIO_MIXER_ENUM;
563 		dip->prev = CSAUDIO_OUTPUT_LVL;
564 		dip->next = AUDIO_MIXER_LAST;
565 	mute:
566 		strcpy(dip->label.name, AudioNmute);
567 		dip->un.e.num_mem = 2;
568 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
569 		dip->un.e.member[0].ord = 0;
570 		strcpy(dip->un.e.member[1].label.name, AudioNon);
571 		dip->un.e.member[1].ord = 1;
572 		break;
573 
574 	case CSAUDIO_REC_LVL:	/* record level */
575 		dip->type = AUDIO_MIXER_VALUE;
576 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
577 		dip->prev = AUDIO_MIXER_LAST;
578 		dip->next = CSAUDIO_RECORD_SOURCE;
579 		strcpy(dip->label.name, AudioNrecord);
580 		dip->un.v.num_channels = 2;
581 		strcpy(dip->un.v.units.name, AudioNvolume);
582 		break;
583 
584 	case CSAUDIO_RECORD_SOURCE:
585 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
586 		dip->type = AUDIO_MIXER_ENUM;
587 		dip->prev = CSAUDIO_REC_LVL;
588 		dip->next = AUDIO_MIXER_LAST;
589 		strcpy(dip->label.name, AudioNsource);
590 		dip->un.e.num_mem = 4;
591 		strcpy(dip->un.e.member[0].label.name, AudioNoutput);
592 		dip->un.e.member[0].ord = DAC_IN_PORT;
593 		strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
594 		dip->un.e.member[1].ord = MIC_IN_PORT;
595 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
596 		dip->un.e.member[2].ord = AUX1_IN_PORT;
597 		strcpy(dip->un.e.member[3].label.name, AudioNline);
598 		dip->un.e.member[3].ord = LINE_IN_PORT;
599 		break;
600 
601 	case CSAUDIO_INPUT_CLASS:		/* input class descriptor */
602 		dip->type = AUDIO_MIXER_CLASS;
603 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
604 		dip->next = dip->prev = AUDIO_MIXER_LAST;
605 		strcpy(dip->label.name, AudioCinputs);
606 		break;
607 
608 	case CSAUDIO_MONITOR_CLASS:		/* output class descriptor */
609 		dip->type = AUDIO_MIXER_CLASS;
610 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
611 		dip->next = dip->prev = AUDIO_MIXER_LAST;
612 		strcpy(dip->label.name, AudioCmonitor);
613 		break;
614 
615 	case CSAUDIO_RECORD_CLASS:		/* record source class */
616 		dip->type = AUDIO_MIXER_CLASS;
617 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
618 		dip->next = dip->prev = AUDIO_MIXER_LAST;
619 		strcpy(dip->label.name, AudioCrecord);
620 		break;
621 
622 	default:
623 		return ENXIO;
624 		/*NOTREACHED*/
625 	}
626 	DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
627 
628 	return (0);
629 }
630 
631 #endif /* NAUDIO > 0 */
632