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cs4231.c revision 1.13
      1 /*	$NetBSD: cs4231.c,v 1.13 2003/09/10 11:53:53 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 1.13 2003/09/10 11:53:53 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_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 			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 
    183 void *
    184 cs4231_malloc(addr, direction, size, pool, flags)
    185 	void *addr;
    186 	int direction;
    187 	size_t size;
    188 	struct malloc_type *pool;
    189 	int flags;
    190 {
    191 	struct cs4231_softc *sc = addr;
    192 	bus_dma_tag_t dmatag = sc->sc_dmatag;
    193 	struct cs_dma *p;
    194 
    195 	p = malloc(sizeof(*p), pool, flags);
    196 	if (p == NULL)
    197 		return (NULL);
    198 
    199 	/* Allocate a DMA map */
    200 	if (bus_dmamap_create(dmatag, size, 1, size, 0,
    201 				BUS_DMA_NOWAIT, &p->dmamap) != 0)
    202 		goto fail1;
    203 
    204 	/* Allocate DMA memory */
    205 	p->size = size;
    206 	if (bus_dmamem_alloc(dmatag, size, 64*1024, 0,
    207 				p->segs, sizeof(p->segs)/sizeof(p->segs[0]),
    208 				&p->nsegs, BUS_DMA_NOWAIT) != 0)
    209 		goto fail2;
    210 
    211 	/* Map DMA memory into kernel space */
    212 	if (bus_dmamem_map(dmatag, p->segs, p->nsegs, p->size,
    213 			   &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT) != 0)
    214 		goto fail3;
    215 
    216 	/* Load the buffer */
    217 	if (bus_dmamap_load(dmatag, p->dmamap,
    218 			    p->addr, size, NULL, BUS_DMA_NOWAIT) != 0)
    219 		goto fail4;
    220 
    221 	p->next = sc->sc_dmas;
    222 	sc->sc_dmas = p;
    223 	return (p->addr);
    224 
    225 fail4:
    226 	bus_dmamem_unmap(dmatag, p->addr, p->size);
    227 fail3:
    228 	bus_dmamem_free(dmatag, p->segs, p->nsegs);
    229 fail2:
    230 	bus_dmamap_destroy(dmatag, p->dmamap);
    231 fail1:
    232 	free(p, pool);
    233 	return (NULL);
    234 }
    235 
    236 void
    237 cs4231_free(addr, ptr, pool)
    238 	void *addr;
    239 	void *ptr;
    240 	struct malloc_type *pool;
    241 {
    242 	struct cs4231_softc *sc = addr;
    243 	bus_dma_tag_t dmatag = sc->sc_dmatag;
    244 	struct cs_dma *p, **pp;
    245 
    246 	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &(*pp)->next) {
    247 		if (p->addr != ptr)
    248 			continue;
    249 		bus_dmamap_unload(dmatag, p->dmamap);
    250 		bus_dmamem_unmap(dmatag, p->addr, p->size);
    251 		bus_dmamem_free(dmatag, p->segs, p->nsegs);
    252 		bus_dmamap_destroy(dmatag, p->dmamap);
    253 		*pp = p->next;
    254 		free(p, pool);
    255 		return;
    256 	}
    257 	printf("cs4231_free: rogue pointer\n");
    258 }
    259 
    260 
    261 /*
    262  * Set up transfer and return DMA address and byte count in paddr and psize
    263  * for bus dependent trigger_{in,out}put to load into the DMA controller.
    264  */
    265 int
    266 cs4231_transfer_init(sc, t, paddr, psize, start, end, blksize, intr, arg)
    267 	struct cs4231_softc *sc;
    268 	struct cs_transfer *t;
    269 	bus_addr_t *paddr;
    270 	bus_size_t *psize;
    271 	void *start, *end;
    272 	int blksize;
    273 	void (*intr)(void *);
    274 	void *arg;
    275 {
    276 	struct cs_dma *p;
    277 	vsize_t n;
    278 
    279 	if (t->t_active) {
    280 		printf("%s: %s already running\n",
    281 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name);
    282 		return (EINVAL);
    283 	}
    284 
    285 	t->t_intr = intr;
    286 	t->t_arg = arg;
    287 
    288 	for (p = sc->sc_dmas; p != NULL && p->addr != start; p = p->next)
    289 		continue;
    290 	if (p == NULL) {
    291 		printf("%s: bad %s addr %p\n",
    292 		       sc->sc_ad1848.sc_dev.dv_xname, t->t_name, start);
    293 		return (EINVAL);
    294 	}
    295 
    296 	n = (char *)end - (char *)start;
    297 
    298 	t->t_dma = p;		/* the DMA memory segment */
    299 	t->t_segsz = n;		/* size of DMA segment */
    300 	t->t_blksz = blksize;	/* do transfers in blksize chunks */
    301 
    302 	if (n > t->t_blksz)
    303 		n = t->t_blksz;
    304 
    305 	t->t_cnt = n;
    306 
    307 	/* for caller to load into DMA controller */
    308 	*paddr = t->t_dma->dmamap->dm_segs[0].ds_addr;
    309 	*psize = n;
    310 
    311 	DPRINTF(("%s: init %s: [%p..%p] %lu bytes %lu blocks;"
    312 		 " DMA at 0x%lx count %lu\n",
    313 		 sc->sc_ad1848.sc_dev.dv_xname, t->t_name,
    314 		 start, end, (u_long)t->t_segsz, (u_long)t->t_blksz,
    315 		 (u_long)*paddr, (u_long)*psize));
    316 
    317 	t->t_active = 1;
    318 	return (0);
    319 }
    320 
    321 /*
    322  * Compute next DMA address/counter, update transfer status.
    323  */
    324 void
    325 cs4231_transfer_advance(t, paddr, psize)
    326 	struct cs_transfer *t;
    327 	bus_addr_t *paddr;
    328 	bus_size_t *psize;
    329 {
    330 	bus_addr_t dmabase, nextaddr;
    331 	bus_size_t togo;
    332 
    333 	dmabase = t->t_dma->dmamap->dm_segs[0].ds_addr;
    334 
    335 	togo = t->t_segsz - t->t_cnt;
    336 	if (togo == 0) {	/* roll over */
    337 		nextaddr = dmabase;
    338 		t->t_cnt = togo = t->t_blksz;
    339 	} else {
    340 		nextaddr = dmabase + t->t_cnt;
    341 		if (togo > t->t_blksz)
    342 			togo = t->t_blksz;
    343 		t->t_cnt += togo;
    344 	}
    345 
    346 	/* for caller to load into DMA controller */
    347 	*paddr = nextaddr;
    348 	*psize = togo;
    349 }
    350 
    351 
    352 int
    353 cs4231_open(addr, flags)
    354 	void *addr;
    355 	int flags;
    356 {
    357 	struct cs4231_softc *sc = addr;
    358 
    359 	DPRINTF(("sa_open: unit %p\n", sc));
    360 
    361 	if (sc->sc_open)
    362 		return (EBUSY);
    363 
    364 	sc->sc_open = 1;
    365 
    366 	sc->sc_playback.t_active = 0;
    367 	sc->sc_playback.t_intr = NULL;
    368 	sc->sc_playback.t_arg = NULL;
    369 
    370 	sc->sc_capture.t_active = 0;
    371 	sc->sc_capture.t_intr = NULL;
    372 	sc->sc_capture.t_arg = NULL;
    373 
    374 	/* no interrupts from ad1848 */
    375 	ad_write(&sc->sc_ad1848, SP_PIN_CONTROL, 0);
    376 	ad1848_reset(&sc->sc_ad1848);
    377 
    378 	DPRINTF(("sa_open: ok -> sc=%p\n", sc));
    379 	return (0);
    380 }
    381 
    382 void
    383 cs4231_close(addr)
    384 	void *addr;
    385 {
    386 	struct cs4231_softc *sc = addr;
    387 
    388 	DPRINTF(("sa_close: sc=%p\n", sc));
    389 
    390 	/* audio(9) already called halt methods */
    391 	sc->sc_open = 0;
    392 
    393 	DPRINTF(("sa_close: closed.\n"));
    394 }
    395 
    396 int
    397 cs4231_getdev(addr, retp)
    398         void *addr;
    399         struct audio_device *retp;
    400 {
    401 
    402         *retp = cs4231_device;
    403         return (0);
    404 }
    405 
    406 static ad1848_devmap_t csmapping[] = {
    407 	{ CSAUDIO_DAC_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
    408 	{ CSAUDIO_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
    409 	{ CSAUDIO_MONO_LVL, AD1848_KIND_LVL, AD1848_MONO_CHANNEL },
    410 	{ CSAUDIO_CD_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
    411 	{ CSAUDIO_OUTPUT_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
    412 	{ CSAUDIO_OUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
    413 	{ CSAUDIO_DAC_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
    414 	{ CSAUDIO_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
    415 	{ CSAUDIO_MONO_MUTE, AD1848_KIND_MUTE, AD1848_MONO_CHANNEL },
    416 	{ CSAUDIO_CD_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
    417 	{ CSAUDIO_OUTPUT_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
    418 	{ CSAUDIO_OUT_MUTE, AD1848_KIND_MUTE, AD1848_OUT_CHANNEL },
    419 	{ CSAUDIO_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
    420 	{ CSAUDIO_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 }
    421 };
    422 
    423 static int nummap = sizeof(csmapping) / sizeof(csmapping[0]);
    424 
    425 
    426 int
    427 cs4231_set_port(addr, cp)
    428 	void *addr;
    429 	mixer_ctrl_t *cp;
    430 {
    431 	struct ad1848_softc *ac = addr;
    432 
    433 	DPRINTF(("cs4231_set_port: port=%d", cp->dev));
    434 	return (ad1848_mixer_set_port(ac, csmapping, nummap, cp));
    435 }
    436 
    437 int
    438 cs4231_get_port(addr, cp)
    439 	void *addr;
    440 	mixer_ctrl_t *cp;
    441 {
    442 	struct ad1848_softc *ac = addr;
    443 
    444 	DPRINTF(("cs4231_get_port: port=%d", cp->dev));
    445 	return (ad1848_mixer_get_port(ac, csmapping, nummap, cp));
    446 }
    447 
    448 int
    449 cs4231_get_props(addr)
    450 	void *addr;
    451 {
    452 
    453 	return (AUDIO_PROP_FULLDUPLEX);
    454 }
    455 
    456 int
    457 cs4231_query_devinfo(addr, dip)
    458 	void *addr;
    459 	mixer_devinfo_t *dip;
    460 {
    461 
    462 	switch(dip->index) {
    463 
    464 	case CSAUDIO_DAC_LVL:		/*  dacout */
    465 		dip->type = AUDIO_MIXER_VALUE;
    466 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    467 		dip->prev = AUDIO_MIXER_LAST;
    468 		dip->next = CSAUDIO_DAC_MUTE;
    469 		strcpy(dip->label.name, AudioNdac);
    470 		dip->un.v.num_channels = 2;
    471 		strcpy(dip->un.v.units.name, AudioNvolume);
    472 		break;
    473 
    474 	case CSAUDIO_LINE_IN_LVL:	/* line */
    475 		dip->type = AUDIO_MIXER_VALUE;
    476 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    477 		dip->prev = AUDIO_MIXER_LAST;
    478 		dip->next = CSAUDIO_LINE_IN_MUTE;
    479 		strcpy(dip->label.name, AudioNline);
    480 		dip->un.v.num_channels = 2;
    481 		strcpy(dip->un.v.units.name, AudioNvolume);
    482 		break;
    483 
    484 	case CSAUDIO_MONO_LVL:	/* mono/microphone mixer */
    485 		dip->type = AUDIO_MIXER_VALUE;
    486 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    487 		dip->prev = AUDIO_MIXER_LAST;
    488 		dip->next = CSAUDIO_MONO_MUTE;
    489 		strcpy(dip->label.name, AudioNmicrophone);
    490 		dip->un.v.num_channels = 1;
    491 		strcpy(dip->un.v.units.name, AudioNvolume);
    492 		break;
    493 
    494 	case CSAUDIO_CD_LVL:		/* cd */
    495 		dip->type = AUDIO_MIXER_VALUE;
    496 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    497 		dip->prev = AUDIO_MIXER_LAST;
    498 		dip->next = CSAUDIO_CD_MUTE;
    499 		strcpy(dip->label.name, AudioNcd);
    500 		dip->un.v.num_channels = 2;
    501 		strcpy(dip->un.v.units.name, AudioNvolume);
    502 		break;
    503 
    504 
    505 	case CSAUDIO_OUTPUT_LVL:	/* monitor level */
    506 		dip->type = AUDIO_MIXER_VALUE;
    507 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    508 		dip->next = CSAUDIO_OUTPUT_MUTE;
    509 		dip->prev = AUDIO_MIXER_LAST;
    510 		strcpy(dip->label.name, AudioNmonitor);
    511 		dip->un.v.num_channels = 1;
    512 		strcpy(dip->un.v.units.name, AudioNvolume);
    513 		break;
    514 
    515 	case CSAUDIO_OUT_LVL:		/* cs4231 output volume */
    516 		dip->type = AUDIO_MIXER_VALUE;
    517 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    518 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    519 		strcpy(dip->label.name, AudioNmaster);
    520 		dip->un.v.num_channels = 2;
    521 		strcpy(dip->un.v.units.name, AudioNvolume);
    522 		break;
    523 
    524 	case CSAUDIO_OUT_MUTE: /* mute built-in speaker */
    525 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    526 		dip->type = AUDIO_MIXER_ENUM;
    527 		dip->prev = CSAUDIO_MONITOR_CLASS;
    528 		dip->next = AUDIO_MIXER_LAST;
    529 		strcpy(dip->label.name, AudioNmono);
    530 		/* names reversed, this is a "mute" value used as "mono enabled" */
    531 		dip->un.e.num_mem = 2;
    532 		strcpy(dip->un.e.member[0].label.name, AudioNon);
    533 		dip->un.e.member[0].ord = 0;
    534 		strcpy(dip->un.e.member[1].label.name, AudioNoff);
    535 		dip->un.e.member[1].ord = 1;
    536 		break;
    537 
    538 	case CSAUDIO_LINE_IN_MUTE:
    539 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    540 		dip->type = AUDIO_MIXER_ENUM;
    541 		dip->prev = CSAUDIO_LINE_IN_LVL;
    542 		dip->next = AUDIO_MIXER_LAST;
    543 		goto mute;
    544 
    545 	case CSAUDIO_DAC_MUTE:
    546 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    547 		dip->type = AUDIO_MIXER_ENUM;
    548 		dip->prev = CSAUDIO_DAC_LVL;
    549 		dip->next = AUDIO_MIXER_LAST;
    550 		goto mute;
    551 
    552 	case CSAUDIO_CD_MUTE:
    553 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    554 		dip->type = AUDIO_MIXER_ENUM;
    555 		dip->prev = CSAUDIO_CD_LVL;
    556 		dip->next = AUDIO_MIXER_LAST;
    557 		goto mute;
    558 
    559 	case CSAUDIO_MONO_MUTE:
    560 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    561 		dip->type = AUDIO_MIXER_ENUM;
    562 		dip->prev = CSAUDIO_MONO_LVL;
    563 		dip->next = AUDIO_MIXER_LAST;
    564 		goto mute;
    565 
    566 	case CSAUDIO_OUTPUT_MUTE:
    567 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    568 		dip->type = AUDIO_MIXER_ENUM;
    569 		dip->prev = CSAUDIO_OUTPUT_LVL;
    570 		dip->next = AUDIO_MIXER_LAST;
    571 	mute:
    572 		strcpy(dip->label.name, AudioNmute);
    573 		dip->un.e.num_mem = 2;
    574 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
    575 		dip->un.e.member[0].ord = 0;
    576 		strcpy(dip->un.e.member[1].label.name, AudioNon);
    577 		dip->un.e.member[1].ord = 1;
    578 		break;
    579 
    580 	case CSAUDIO_REC_LVL:	/* record level */
    581 		dip->type = AUDIO_MIXER_VALUE;
    582 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    583 		dip->prev = AUDIO_MIXER_LAST;
    584 		dip->next = CSAUDIO_RECORD_SOURCE;
    585 		strcpy(dip->label.name, AudioNrecord);
    586 		dip->un.v.num_channels = 2;
    587 		strcpy(dip->un.v.units.name, AudioNvolume);
    588 		break;
    589 
    590 	case CSAUDIO_RECORD_SOURCE:
    591 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    592 		dip->type = AUDIO_MIXER_ENUM;
    593 		dip->prev = CSAUDIO_REC_LVL;
    594 		dip->next = AUDIO_MIXER_LAST;
    595 		strcpy(dip->label.name, AudioNsource);
    596 		dip->un.e.num_mem = 4;
    597 		strcpy(dip->un.e.member[0].label.name, AudioNoutput);
    598 		dip->un.e.member[0].ord = DAC_IN_PORT;
    599 		strcpy(dip->un.e.member[1].label.name, AudioNmicrophone);
    600 		dip->un.e.member[1].ord = MIC_IN_PORT;
    601 		strcpy(dip->un.e.member[2].label.name, AudioNdac);
    602 		dip->un.e.member[2].ord = AUX1_IN_PORT;
    603 		strcpy(dip->un.e.member[3].label.name, AudioNline);
    604 		dip->un.e.member[3].ord = LINE_IN_PORT;
    605 		break;
    606 
    607 	case CSAUDIO_INPUT_CLASS:		/* input class descriptor */
    608 		dip->type = AUDIO_MIXER_CLASS;
    609 		dip->mixer_class = CSAUDIO_INPUT_CLASS;
    610 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    611 		strcpy(dip->label.name, AudioCinputs);
    612 		break;
    613 
    614 	case CSAUDIO_MONITOR_CLASS:		/* output class descriptor */
    615 		dip->type = AUDIO_MIXER_CLASS;
    616 		dip->mixer_class = CSAUDIO_MONITOR_CLASS;
    617 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    618 		strcpy(dip->label.name, AudioCmonitor);
    619 		break;
    620 
    621 	case CSAUDIO_RECORD_CLASS:		/* record source class */
    622 		dip->type = AUDIO_MIXER_CLASS;
    623 		dip->mixer_class = CSAUDIO_RECORD_CLASS;
    624 		dip->next = dip->prev = AUDIO_MIXER_LAST;
    625 		strcpy(dip->label.name, AudioCrecord);
    626 		break;
    627 
    628 	default:
    629 		return ENXIO;
    630 		/*NOTREACHED*/
    631 	}
    632 	DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
    633 
    634 	return (0);
    635 }
    636 
    637 #endif /* NAUDIO > 0 */
    638