xref: /netbsd/sys/dev/ic/cs4231.c (revision bf9ec67e)
1 /*	$NetBSD: cs4231.c,v 1.7 2002/03/12 04:48:28 uwe 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 1.7 2002/03/12 04:48:28 uwe 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_MONITOR_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_MONITOR_MUTE	10
74 #define CSAUDIO_REC_LVL		11
75 #define CSAUDIO_RECORD_SOURCE	12
76 
77 #define CSAUDIO_INPUT_CLASS	13
78 #define CSAUDIO_OUTPUT_CLASS	14
79 #define CSAUDIO_RECORD_CLASS	15
80 #define CSAUDIO_MONITOR_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 			sprintf(buf, "unknown rev: %x/%x", reg&0xe0, reg&7);
175 			sc->sc_ad1848.chip_name = buf;
176 		}
177 	}
178 
179 	sc->sc_ad1848.mode = 2;	/* put ad1848 driver in `MODE 2' mode */
180 	ad1848_attach(&sc->sc_ad1848);
181 
182 #if 0
183 	/*
184 	 * Before we give audiocs proper "outputs" handling, always mute
185 	 * internal speaker so that I can test this w/out waking up my family.
186 	 */
187 	reg = ad_read(&sc->sc_ad1848, CS_MONO_IO_CONTROL);
188 	ad_write(&sc->sc_ad1848, CS_MONO_IO_CONTROL, reg | MONO_OUTPUT_MUTE);
189 #endif
190 }
191 
192 void *
193 cs4231_malloc(addr, direction, size, pool, flags)
194 	void *addr;
195 	int direction;
196 	size_t size;
197 	int pool, flags;
198 {
199 	struct cs4231_softc *sc = addr;
200 	bus_dma_tag_t dmatag = sc->sc_dmatag;
201 	struct cs_dma *p;
202 
203 	p = malloc(sizeof(*p), pool, flags);
204 	if (p == NULL)
205 		return (NULL);
206 
207 	/* Allocate a DMA map */
208 	if (bus_dmamap_create(dmatag, size, 1, size, 0,
209 				BUS_DMA_NOWAIT, &p->dmamap) != 0)
210 		goto fail1;
211 
212 	/* Allocate DMA memory */
213 	p->size = size;
214 	if (bus_dmamem_alloc(dmatag, size, 64*1024, 0,
215 				p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
216 				&p->nsegs, BUS_DMA_NOWAIT) != 0)
217 		goto fail2;
218 
219 	/* Map DMA memory into kernel space */
220 	if (bus_dmamem_map(dmatag, p->segs, p->nsegs, p->size,
221 			   &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT) != 0)
222 		goto fail3;
223 
224 	/* Load the buffer */
225 	if (bus_dmamap_load(dmatag, p->dmamap,
226 			    p->addr, size, NULL, BUS_DMA_NOWAIT) != 0)
227 		goto fail4;
228 
229 	p->next = sc->sc_dmas;
230 	sc->sc_dmas = p;
231 	return (p->addr);
232 
233 fail4:
234 	bus_dmamem_unmap(dmatag, p->addr, p->size);
235 fail3:
236 	bus_dmamem_free(dmatag, p->segs, p->nsegs);
237 fail2:
238 	bus_dmamap_destroy(dmatag, p->dmamap);
239 fail1:
240 	free(p, pool);
241 	return (NULL);
242 }
243 
244 void
245 cs4231_free(addr, ptr, pool)
246 	void *addr;
247 	void *ptr;
248 	int pool;
249 {
250 	struct cs4231_softc *sc = addr;
251 	bus_dma_tag_t dmatag = sc->sc_dmatag;
252 	struct cs_dma *p, **pp;
253 
254 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &(*pp)->next) {
255 		if (p->addr != ptr)
256 			continue;
257 		bus_dmamap_unload(dmatag, p->dmamap);
258 		bus_dmamem_unmap(dmatag, p->addr, p->size);
259 		bus_dmamem_free(dmatag, p->segs, p->nsegs);
260 		bus_dmamap_destroy(dmatag, p->dmamap);
261 		*pp = p->next;
262 		free(p, pool);
263 		return;
264 	}
265 	printf("cs4231_free: rogue pointer\n");
266 }
267 
268 
269 /*
270  * Set up transfer and return DMA address and byte count in paddr and psize
271  * for bus dependent trigger_{in,out}put to load into the dma controller.
272  */
273 int
274 cs4231_transfer_init(sc, t, paddr, psize, start, end, blksize, intr, arg)
275 	struct cs4231_softc *sc;
276 	struct cs_transfer *t;
277 	bus_addr_t *paddr;
278 	bus_size_t *psize;
279 	void *start, *end;
280 	int blksize;
281 	void (*intr)(void *);
282 	void *arg;
283 {
284 	struct cs_dma *p;
285 	vsize_t n;
286 
287 	if (t->t_active) {
288 		printf("%s: %s already running\n",
289 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name);
290 		return (EINVAL);
291 	}
292 
293 	t->t_intr = intr;
294 	t->t_arg = arg;
295 
296 	for (p = sc->sc_dmas; p != NULL && p->addr != start; p = p->next)
297 		continue;
298 	if (p == NULL) {
299 		printf("%s: bad %s addr %p\n",
300 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name, start);
301 		return (EINVAL);
302 	}
303 
304 	n = (char *)end - (char *)start;
305 
306 	t->t_dma = p;		/* the DMA memory segment */
307 	t->t_segsz = n;		/* size of DMA segment */
308 	t->t_blksz = blksize;	/* do transfers in blksize chunks */
309 
310 	if (n > t->t_blksz)
311 		n = t->t_blksz;
312 
313 	t->t_cnt = n;
314 
315 	/* for caller to load into dma controller */
316 	*paddr = t->t_dma->dmamap->dm_segs[0].ds_addr;
317 	*psize = n;
318 
319 	DPRINTF(("%s: init %s: [%p..%p] %lu bytes %lu blocks;"
320 		 " dma at 0x%lx count %lu\n",
321 		 sc->sc_ad1848.sc_dev.dv_xname, t->t_name,
322 		 start, end, (u_long)t->t_segsz, (u_long)t->t_blksz,
323 		 (u_long)*paddr, (u_long)*psize));
324 
325 	t->t_active = 1;
326 	return (0);
327 }
328 
329 /*
330  * Compute next DMA address/counter, update transfer status.
331  */
332 void
333 cs4231_transfer_advance(t, paddr, psize)
334 	struct cs_transfer *t;
335 	bus_addr_t *paddr;
336 	bus_size_t *psize;
337 {
338 	bus_addr_t dmabase, nextaddr;
339 	bus_size_t togo;
340 
341 	dmabase = t->t_dma->dmamap->dm_segs[0].ds_addr;
342 
343 	togo = t->t_segsz - t->t_cnt;
344 	if (togo == 0) {	/* roll over */
345 		nextaddr = dmabase;
346 		t->t_cnt = togo = t->t_blksz;
347 	} else {
348 		nextaddr = dmabase + t->t_cnt;
349 		if (togo > t->t_blksz)
350 			togo = t->t_blksz;
351 		t->t_cnt += togo;
352 	}
353 
354 	/* for caller to load into dma controller */
355 	*paddr = nextaddr;
356 	*psize = togo;
357 }
358 
359 
360 int
361 cs4231_open(addr, flags)
362 	void *addr;
363 	int flags;
364 {
365 	struct cs4231_softc *sc = addr;
366 
367 	DPRINTF(("sa_open: unit %p\n", sc));
368 
369 	if (sc->sc_open)
370 		return (EBUSY);
371 
372 	sc->sc_open = 1;
373 
374 	sc->sc_playback.t_active = 0;
375 	sc->sc_playback.t_intr = NULL;
376 	sc->sc_playback.t_arg = NULL;
377 
378 	sc->sc_capture.t_active = 0;
379 	sc->sc_capture.t_intr = NULL;
380 	sc->sc_capture.t_arg = NULL;
381 
382 	/* no interrupts from ad1848 */
383 	ad_write(&sc->sc_ad1848, SP_PIN_CONTROL, 0);
384 	ad1848_reset(&sc->sc_ad1848);
385 
386 	DPRINTF(("sa_open: ok -> sc=%p\n", sc));
387 	return (0);
388 }
389 
390 void
391 cs4231_close(addr)
392 	void *addr;
393 {
394 	struct cs4231_softc *sc = addr;
395 
396 	DPRINTF(("sa_close: sc=%p\n", sc));
397 
398 	/* audio(9) already called halt methods */
399 	sc->sc_open = 0;
400 
401 	DPRINTF(("sa_close: closed.\n"));
402 }
403 
404 size_t
405 cs4231_round_buffersize(addr, direction, size)
406 	void *addr;
407 	int direction;
408 	size_t size;
409 {
410 
411 	return (size);
412 }
413 
414 int
415 cs4231_round_blocksize(addr, blk)
416 	void *addr;
417 	int blk;
418 {
419 
420 	return (blk & ~3);
421 }
422 
423 int
424 cs4231_getdev(addr, retp)
425         void *addr;
426         struct audio_device *retp;
427 {
428 
429         *retp = cs4231_device;
430         return (0);
431 }
432 
433 static ad1848_devmap_t csmapping[] = {
434 	{ CSAUDIO_DAC_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
435 	{ CSAUDIO_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
436 	{ CSAUDIO_MONO_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
437 	{ CSAUDIO_CD_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
438 	{ CSAUDIO_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
439 	{ CSAUDIO_OUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
440 	{ CSAUDIO_DAC_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
441 	{ CSAUDIO_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
442 	{ CSAUDIO_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
443 	{ CSAUDIO_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
444 	{ CSAUDIO_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
445 	{ CSAUDIO_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
446 	{ CSAUDIO_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 }
447 };
448 
449 static int nummap = sizeof(csmapping) / sizeof(csmapping[0]);
450 
451 
452 int
453 cs4231_set_port(addr, cp)
454 	void *addr;
455 	mixer_ctrl_t *cp;
456 {
457 	struct ad1848_softc *ac = addr;
458 
459 	DPRINTF(("cs4231_set_port: port=%d", cp->dev));
460 	return (ad1848_mixer_set_port(ac, csmapping, nummap, cp));
461 }
462 
463 int
464 cs4231_get_port(addr, cp)
465 	void *addr;
466 	mixer_ctrl_t *cp;
467 {
468 	struct ad1848_softc *ac = addr;
469 
470 	DPRINTF(("cs4231_get_port: port=%d", cp->dev));
471 	return (ad1848_mixer_get_port(ac, csmapping, nummap, cp));
472 }
473 
474 int
475 cs4231_get_props(addr)
476 	void *addr;
477 {
478 
479 	return (AUDIO_PROP_FULLDUPLEX);
480 }
481 
482 int
483 cs4231_query_devinfo(addr, dip)
484 	void *addr;
485 	mixer_devinfo_t *dip;
486 {
487 
488 	switch(dip->index) {
489 
490 	case CSAUDIO_DAC_LVL:		/*  dacout */
491 		dip->type = AUDIO_MIXER_VALUE;
492 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
493 		dip->prev = AUDIO_MIXER_LAST;
494 		dip->next = CSAUDIO_DAC_MUTE;
495 		strcpy(dip->label.name, AudioNdac);
496 		dip->un.v.num_channels = 2;
497 		strcpy(dip->un.v.units.name, AudioNvolume);
498 		break;
499 
500 	case CSAUDIO_LINE_IN_LVL:	/* line */
501 		dip->type = AUDIO_MIXER_VALUE;
502 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
503 		dip->prev = AUDIO_MIXER_LAST;
504 		dip->next = CSAUDIO_LINE_IN_MUTE;
505 		strcpy(dip->label.name, AudioNline);
506 		dip->un.v.num_channels = 2;
507 		strcpy(dip->un.v.units.name, AudioNvolume);
508 		break;
509 
510 	case CSAUDIO_MONO_LVL:	/* mono/microphone mixer */
511 		dip->type = AUDIO_MIXER_VALUE;
512 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
513 		dip->prev = AUDIO_MIXER_LAST;
514 		dip->next = CSAUDIO_MONO_MUTE;
515 		strcpy(dip->label.name, AudioNmicrophone);
516 		dip->un.v.num_channels = 1;
517 		strcpy(dip->un.v.units.name, AudioNvolume);
518 		break;
519 
520 	case CSAUDIO_CD_LVL:		/* cd */
521 		dip->type = AUDIO_MIXER_VALUE;
522 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
523 		dip->prev = AUDIO_MIXER_LAST;
524 		dip->next = CSAUDIO_CD_MUTE;
525 		strcpy(dip->label.name, AudioNcd);
526 		dip->un.v.num_channels = 2;
527 		strcpy(dip->un.v.units.name, AudioNvolume);
528 		break;
529 
530 
531 	case CSAUDIO_MONITOR_LVL:	/* monitor level */
532 		dip->type = AUDIO_MIXER_VALUE;
533 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
534 		dip->next = CSAUDIO_MONITOR_MUTE;
535 		dip->prev = AUDIO_MIXER_LAST;
536 		strcpy(dip->label.name, AudioNmonitor);
537 		dip->un.v.num_channels = 1;
538 		strcpy(dip->un.v.units.name, AudioNvolume);
539 		break;
540 
541 	case CSAUDIO_OUT_LVL:		/* cs4231 output volume: not useful? */
542 		dip->type = AUDIO_MIXER_VALUE;
543 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
544 		dip->prev = dip->next = AUDIO_MIXER_LAST;
545 		strcpy(dip->label.name, AudioNoutput);
546 		dip->un.v.num_channels = 2;
547 		strcpy(dip->un.v.units.name, AudioNvolume);
548 		break;
549 
550 	case CSAUDIO_LINE_IN_MUTE:
551 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
552 		dip->type = AUDIO_MIXER_ENUM;
553 		dip->prev = CSAUDIO_LINE_IN_LVL;
554 		dip->next = AUDIO_MIXER_LAST;
555 		goto mute;
556 
557 	case CSAUDIO_DAC_MUTE:
558 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
559 		dip->type = AUDIO_MIXER_ENUM;
560 		dip->prev = CSAUDIO_DAC_LVL;
561 		dip->next = AUDIO_MIXER_LAST;
562 		goto mute;
563 
564 	case CSAUDIO_CD_MUTE:
565 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
566 		dip->type = AUDIO_MIXER_ENUM;
567 		dip->prev = CSAUDIO_CD_LVL;
568 		dip->next = AUDIO_MIXER_LAST;
569 		goto mute;
570 
571 	case CSAUDIO_MONO_MUTE:
572 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
573 		dip->type = AUDIO_MIXER_ENUM;
574 		dip->prev = CSAUDIO_MONO_LVL;
575 		dip->next = AUDIO_MIXER_LAST;
576 		goto mute;
577 
578 	case CSAUDIO_MONITOR_MUTE:
579 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
580 		dip->type = AUDIO_MIXER_ENUM;
581 		dip->prev = CSAUDIO_MONITOR_LVL;
582 		dip->next = AUDIO_MIXER_LAST;
583 	mute:
584 		strcpy(dip->label.name, AudioNmute);
585 		dip->un.e.num_mem = 2;
586 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
587 		dip->un.e.member[0].ord = 0;
588 		strcpy(dip->un.e.member[1].label.name, AudioNon);
589 		dip->un.e.member[1].ord = 1;
590 		break;
591 
592 	case CSAUDIO_REC_LVL:	/* record level */
593 		dip->type = AUDIO_MIXER_VALUE;
594 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
595 		dip->prev = AUDIO_MIXER_LAST;
596 		dip->next = CSAUDIO_RECORD_SOURCE;
597 		strcpy(dip->label.name, AudioNrecord);
598 		dip->un.v.num_channels = 2;
599 		strcpy(dip->un.v.units.name, AudioNvolume);
600 		break;
601 
602 	case CSAUDIO_RECORD_SOURCE:
603 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
604 		dip->type = AUDIO_MIXER_ENUM;
605 		dip->prev = CSAUDIO_REC_LVL;
606 		dip->next = AUDIO_MIXER_LAST;
607 		strcpy(dip->label.name, AudioNsource);
608 		dip->un.e.num_mem = 4;
609 		strcpy(dip->un.e.member[0].label.name, AudioNoutput);
610 		dip->un.e.member[0].ord = DAC_IN_PORT;
611 		strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
612 		dip->un.e.member[1].ord = MIC_IN_PORT;
613 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
614 		dip->un.e.member[2].ord = AUX1_IN_PORT;
615 		strcpy(dip->un.e.member[3].label.name, AudioNline);
616 		dip->un.e.member[3].ord = LINE_IN_PORT;
617 		break;
618 
619 	case CSAUDIO_INPUT_CLASS:		/* input class descriptor */
620 		dip->type = AUDIO_MIXER_CLASS;
621 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
622 		dip->next = dip->prev = AUDIO_MIXER_LAST;
623 		strcpy(dip->label.name, AudioCinputs);
624 		break;
625 
626 	case CSAUDIO_OUTPUT_CLASS:		/* output class descriptor */
627 		dip->type = AUDIO_MIXER_CLASS;
628 		dip->mixer_class = CSAUDIO_OUTPUT_CLASS;
629 		dip->next = dip->prev = AUDIO_MIXER_LAST;
630 		strcpy(dip->label.name, AudioCoutputs);
631 		break;
632 
633 	case CSAUDIO_MONITOR_CLASS:		/* monitor class descriptor */
634 		dip->type = AUDIO_MIXER_CLASS;
635 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
636 		dip->next = dip->prev = AUDIO_MIXER_LAST;
637 		strcpy(dip->label.name, AudioCmonitor);
638 		break;
639 
640 	case CSAUDIO_RECORD_CLASS:		/* record source class */
641 		dip->type = AUDIO_MIXER_CLASS;
642 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
643 		dip->next = dip->prev = AUDIO_MIXER_LAST;
644 		strcpy(dip->label.name, AudioCrecord);
645 		break;
646 
647 	default:
648 		return ENXIO;
649 		/*NOTREACHED*/
650 	}
651 	DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
652 
653 	return (0);
654 }
655 
656 #endif /* NAUDIO > 0 */
657