xref: /netbsd/sys/arch/amiga/dev/toccata.c (revision c4a72b64)
1 /* $NetBSD: toccata.c,v 1.5 2002/10/02 04:55:53 thorpej Exp $ */
2 
3 /*-
4  * Copyright (c) 1998, 1999, 2001, 2002 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 and Ignatios Souvatzis.
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: toccata.c,v 1.5 2002/10/02 04:55:53 thorpej Exp $");
41 
42 #include <sys/types.h>
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
46 #include <sys/device.h>
47 #include <sys/fcntl.h>		/* FREAD */
48 
49 #include <machine/bus.h>
50 
51 #include <sys/audioio.h>
52 #include <dev/audio_if.h>
53 
54 
55 #include <dev/ic/ad1848reg.h>
56 #include <dev/ic/ad1848var.h>
57 
58 #include <amiga/dev/zbusvar.h>
59 #include <amiga/amiga/isr.h>
60 
61 
62 /* Register offsets. XXX All of this is guesswork. */
63 
64 /*
65  * The Toccata board consists of: GALs for ZBus AutoConfig(tm) glue, GALs
66  * that interface the FIFO chips and the audio codec chip to the ZBus,
67  * an AD1848 (or AD1845), and 2 Integrated Device Technology 7202LA
68  * (1024x9bit FIFO) chips.
69  */
70 
71 #define TOCC_FIFO_STAT	0x1ffe
72 #define TOCC_FIFO_DATA	0x2000
73 
74 /*
75  * I don't know whether the AD1848 PIO data registers are connected... and
76  * at 2 or 3 accesses to read or write a data byte in the best case, I better
77  * don't even think about it. The AD1848 address/status and data port are
78  * here:
79  */
80 #define TOCC_CODEC_ADDR	0x67FF
81 #define TOCC_CODEC_STAT	TOCC_CODEC_ADDR
82 #define TOCC_CODEC_REG	0x6801
83 
84 /* fifo status bits, read */
85 
86 #define TOCC_FIFO_INT	0x80	/* active low; together with one of those: */
87 
88 #define TOCC_FIFO_PBHE	0x08	/* playback fifo is half empty (active high) */
89 #define TOCC_FIFO_CPHF	0x04	/* capture fifo is half full (active high) */
90 
91 /* fifo status bits, write */
92 
93 /*
94  * seems to work like this:
95  * init: write 2; delay; write 1
96  *
97  * capture: write 1; write 1+4+8+0x40	(0x4D)
98  * capt. int: read 512 bytes out of fifo.
99  * capt. int off by writing 1+4+8	(0x0D)
100  *
101  * playback: write 1; write 1 + 0x10;	(0x11)
102  * 3/4 fill fifo with silence; init codec;
103  * write 1+4+0x10+0x80			(0x95)
104  * pb int: write 512 bytes to fifo
105  * pb int off by writing 1+4+0x10	(0x15)
106  */
107 
108 #define TOCC_RST	0x02
109 #define TOCC_ACT	0x01
110 #define TOCC_MAGIC	0x04
111 
112 #define TOCC_PB_INTENA	0x80
113 #define TOCC_PB_FILL	0x10
114 
115 #define TOCC_PB_PREP	(TOCC_ACT + TOCC_PB_FILL)
116 #define TOCC_PB_TAIL	(TOCC_PB_PREP + TOCC_MAGIC)
117 #define TOCC_PB_MAIN	(TOCC_PB_TAIL + TOCC_PB_INTENA)
118 
119 #define TOCC_CP_INTENA	0x40
120 #define TOCC_CP_RUN	0x08
121 
122 #define TOCC_CP_TAIL	(TOCC_ACT + TOCC_CP_RUN)
123 #define TOCC_CP_MAIN	(TOCC_CP_TAIL + TOCC_CP_INTENA + TOCC_MAGIC)
124 
125 /*
126  * For the port stuff. Similar to the cs4231 table, but MONO is not wired
127  * on the Toccata, which was designed for the AD1848. Also we know how
128  * to handle input.
129  */
130 
131 #define TOCCATA_INPUT_CLASS	0
132 #define TOCCATA_OUTPUT_CLASS	1
133 #define TOCCATA_MONITOR_CLASS	2
134 #define TOCCATA_RECORD_CLASS	3
135 
136 #define TOCCATA_RECORD_SOURCE	4
137 #define TOCCATA_REC_LVL		5
138 
139 #define TOCCATA_MIC_IN_LVL	6
140 
141 #define TOCCATA_AUX1_LVL	7
142 #define TOCCATA_AUX1_MUTE	8
143 
144 #define TOCCATA_AUX2_LVL	9
145 #define TOCCATA_AUX2_MUTE	10
146 
147 #define TOCCATA_MONITOR_LVL	11
148 #define TOCCATA_MONITOR_MUTE	12
149 #define TOCCATA_OUTPUT_LVL	13
150 
151 /* only on AD1845 in mode 2 */
152 
153 #define TOCCATA_LINE_IN_LVL	14
154 #define TOCCATA_LINE_IN_MUTE	15
155 
156 /* special, need support */
157 #define TOCCATA_MIC_LVL		16
158 #define TOCCATA_MIC_MUTE	17
159 
160 
161 
162 /* prototypes */
163 
164 int toccata_intr(void *);
165 int toccata_readreg(struct ad1848_softc *, int);
166 void toccata_writereg(struct ad1848_softc *, int, int);
167 
168 int toccata_round_blocksize(void *, int);
169 size_t toccata_round_buffersize(void *, int, size_t);
170 
171 int toccata_open(void *, int);
172 void toccata_close(void *);
173 int toccata_getdev(void *, struct audio_device *);
174 int toccata_get_props(void *);
175 
176 int toccata_halt_input(void *);
177 int toccata_halt_output(void *);
178 int toccata_start_input(void *, void *, int, void (*)(void *), void *);
179 int toccata_start_output(void *, void *, int, void (*)(void *), void *);
180 
181 /* I suspect  those should be in a shared file */
182 int toccata_set_port(void *, mixer_ctrl_t *);
183 int toccata_get_port(void *, mixer_ctrl_t *);
184 int toccata_query_devinfo(void *, mixer_devinfo_t *);
185 
186 struct audio_hw_if audiocs_hw_if = {
187 	toccata_open,
188 	toccata_close,
189 	0,	/*
190 		 * XXX toccata_drain could be written:
191 		 * sleep for play interupt. This loses less then 512 bytes of
192 		 * sample data, otherwise up to 1024.
193 		 */
194 	ad1848_query_encoding,
195 	ad1848_set_params,
196 	toccata_round_blocksize,
197 	ad1848_commit_settings,
198 	0,	/* init_output */	/* XXX need this to prefill? */
199 	0,	/* init_input */
200 	toccata_start_output,
201 	toccata_start_input,
202 	toccata_halt_output,
203 	toccata_halt_input,
204 	0,	/* speaker */
205 	toccata_getdev,
206 	0,	/* setfd */
207 	toccata_set_port,
208 	toccata_get_port,
209 	toccata_query_devinfo,
210 	0,	/* alloc/free */
211 	0,
212 	toccata_round_buffersize, /* round_buffer */
213 	0,	/* mappage */
214 	toccata_get_props,
215 	0,	/* trigger_output */
216 	0,
217 };
218 
219 struct toccata_softc {
220 	struct ad1848_softc	sc_ad;
221 	struct isr		sc_isr;
222 	volatile u_int8_t	*sc_boardp; /* only need a few addresses! */
223 
224 	void			(*sc_captmore)(void *);
225 	void			 *sc_captarg;
226 	void			 *sc_captbuf;
227 	int			sc_captbufsz;
228 
229 	void			(*sc_playmore)(void *);
230 	void			 *sc_playarg;
231 };
232 
233 int toccata_match (struct device *, struct cfdata *, void *);
234 void toccata_attach (struct device *, struct device *, void *);
235 
236 CFATTACH_DECL(toccata, sizeof(struct toccata_softc),
237     toccata_match, toccata_attach, NULL, NULL);
238 
239 int
240 toccata_match(struct device *parent, struct cfdata *cfp, void *aux) {
241 	struct zbus_args *zap;
242 
243 	zap = aux;
244 
245 	if (zap->manid != 18260)
246 		return (0);
247 
248 	if (zap->prodid != 12)
249 		return (0);
250 
251 	return (1);
252 }
253 
254 void
255 toccata_attach(struct device *parent, struct device *self, void *aux) {
256 	struct toccata_softc *sc;
257 	struct ad1848_softc *asc;
258 	struct zbus_args *zap;
259 
260 	volatile u_int8_t *boardp;
261 
262 	sc = (struct toccata_softc *)self;
263 	asc = &sc->sc_ad;
264 	zap = aux;
265 
266 	boardp = (volatile u_int8_t *)zap->va;
267 	sc->sc_boardp = boardp;
268 
269 	*boardp = TOCC_RST;
270 	delay(500000);		/* look up value */
271 	*boardp = TOCC_ACT;
272 
273 	asc->parent = sc;
274 	asc->sc_readreg = toccata_readreg;
275 	asc->sc_writereg = toccata_writereg;
276 
277 	asc->chip_name = "ad1848";
278 	asc->mode = 1;
279 	ad1848_attach(asc);
280 	printf("\n");
281 
282 	sc->sc_captbuf = 0;
283 	sc->sc_playmore = 0;
284 
285 	sc->sc_isr.isr_ipl = 6;
286 	sc->sc_isr.isr_arg = sc;
287 	sc->sc_isr.isr_intr = toccata_intr;
288 	add_isr(&sc->sc_isr);
289 
290 	audio_attach_mi(&audiocs_hw_if, sc, &asc->sc_dev);
291 
292 }
293 
294 /* interupt handler */
295 
296 int
297 toccata_intr(void *tag) {
298 	struct toccata_softc *sc;
299 	u_int8_t *buf;
300 	volatile u_int8_t *fifo;
301 	u_int8_t status;
302 	int i;
303 
304 	sc = tag;
305 	status = *(sc->sc_boardp);
306 
307 	if (status & TOCC_FIFO_INT)	/* active low */
308 		return 0;
309 
310 	if (status & TOCC_FIFO_PBHE) {
311 		if (sc->sc_playmore) {
312 			(*sc->sc_playmore)(sc->sc_playarg);
313 			return 1;
314 		}
315 	} else if (status & TOCC_FIFO_CPHF) {
316 		if (sc->sc_captbuf) {
317 			buf = sc->sc_captbuf;
318 			fifo = sc->sc_boardp + TOCC_FIFO_DATA;
319 
320 			for (i = sc->sc_captbufsz/4 - 1; i>=0; --i) {
321 				*buf++ = *fifo;
322 				*buf++ = *fifo;
323 				*buf++ = *fifo;
324 				*buf++ = *fifo;
325 			}
326 
327 			/* XXX if (sc->sc_captmore) { */
328 			(*sc->sc_captmore)(sc->sc_captarg);
329 			return 1;
330 		}
331 	}
332 
333 	/*
334 	 * Something is wrong; switch interupts off to avoid wedging the
335 	 * machine, and notify the alpha tester.
336 	 * Normally, the halt_* functions should have switched off the
337 	 * FIFO interupt.
338 	 */
339 #ifdef DEBUG
340 	printf("%s: got unexpected interupt %x\n", sc->sc_ad.sc_dev.dv_xname,
341 	    status);
342 #endif
343 	*sc->sc_boardp = TOCC_ACT;
344 	return 1;
345 }
346 
347 /* support for ad1848 functions */
348 
349 int
350 toccata_readreg(struct ad1848_softc *asc, int offset) {
351 	struct toccata_softc *sc = (struct toccata_softc *)asc;
352 
353 	return (*(sc->sc_boardp + TOCC_CODEC_ADDR +
354 		offset * (TOCC_CODEC_REG - TOCC_CODEC_ADDR)));
355 }
356 
357 void
358 toccata_writereg(struct ad1848_softc *asc, int offset, int value) {
359 	struct toccata_softc *sc = (struct toccata_softc *)asc;
360 
361 	*(sc->sc_boardp + TOCC_CODEC_ADDR +
362 		offset * (TOCC_CODEC_REG - TOCC_CODEC_ADDR)) = value;
363 }
364 
365 /* our own copy of open/close; we don't ever enable the ad1848 interupts */
366 int
367 toccata_open(void *addr, int flags) {
368 	struct toccata_softc *sc;
369 	struct ad1848_softc *asc;
370 
371 	sc = addr;
372 	asc = &sc->sc_ad;
373 
374 	asc->open_mode = flags;
375 	/* If recording && monitoring, the playback part is also used. */
376 	if (flags & FREAD && asc->mute[AD1848_MONITOR_CHANNEL] == 0)
377 		ad1848_mute_wave_output(asc, WAVE_UNMUTE1, 1);
378 
379 #ifdef AUDIO_DEBUG
380         if (ad1848debug)
381                 ad1848_dump_regs(asc);
382 #endif
383 
384         return 0;
385 }
386 
387 void
388 toccata_close(void *addr) {
389 	struct toccata_softc *sc = addr;
390         struct ad1848_softc *asc = &sc->sc_ad;
391 	unsigned reg;
392 
393         asc->open_mode = 0;
394 
395         ad1848_mute_wave_output(asc, WAVE_UNMUTE1, 0);
396 
397 	reg = ad_read(&sc->sc_ad, SP_INTERFACE_CONFIG);
398 	ad_write(&sc->sc_ad, SP_INTERFACE_CONFIG,
399 		(reg & ~(CAPTURE_ENABLE|PLAYBACK_ENABLE)));
400 
401         /* Disable interrupts */
402 	*sc->sc_boardp = TOCC_ACT;
403 #ifdef AUDIO_DEBUG
404         if (ad1848debug)
405                 ad1848_dump_regs(asc);
406 #endif
407 }
408 
409 int
410 toccata_round_blocksize(void *addr, int blk) {
411 	int ret;
412 
413 	ret = blk > 512 ? 512 : (blk & -4);
414 
415 	return ret;
416 }
417 
418 size_t
419 toccata_round_buffersize(void *addr, int direction, size_t suggested) {
420 	int ret;
421 
422 	ret = suggested & -4;
423 
424 	return (ret);
425 }
426 
427 struct audio_device toccata_device = {
428 	"toccata", "x", "audio"
429 };
430 
431 int
432 toccata_getdev(void *addr, struct audio_device *retp) {
433 	*retp = toccata_device;
434 	return (0);
435 }
436 
437 int
438 toccata_get_props(void *addr) {
439 	return (0);
440 }
441 
442 int
443 toccata_halt_input(void *addr) {
444 	struct toccata_softc *sc;
445 	struct ad1848_softc *asc;
446 	unsigned reg;
447 
448 	sc = addr;
449 	asc = &sc->sc_ad;
450 
451 	/* we're half_duplex; be brutal */
452 	*sc->sc_boardp = TOCC_CP_TAIL;
453 	sc->sc_captmore = 0;
454 	sc->sc_captbuf = 0;
455 
456 	reg = ad_read(&sc->sc_ad, SP_INTERFACE_CONFIG);
457 	ad_write(&sc->sc_ad, SP_INTERFACE_CONFIG, (reg & ~CAPTURE_ENABLE));
458 
459 	return 0;
460 }
461 
462 int
463 toccata_start_input(void *addr, void *block, int blksize,
464 	void (*intr)(void *), void *intrarg) {
465 
466 	struct toccata_softc *sc;
467 	unsigned reg;
468 	volatile u_int8_t *cmd;
469 
470 	sc = addr;
471 	cmd = sc->sc_boardp;
472 
473 	if (sc->sc_captmore == 0) {
474 
475 		/* we're half-duplex, be brutal */
476 		*cmd = TOCC_ACT;
477 		*cmd = TOCC_CP_MAIN;
478 
479 		reg = ad_read(&sc->sc_ad, SP_INTERFACE_CONFIG);
480 		ad_write(&sc->sc_ad, SP_INTERFACE_CONFIG,
481 		    (reg | CAPTURE_ENABLE));
482 
483 	}
484 
485 	sc->sc_captarg = intrarg;
486 	sc->sc_captmore = intr;
487 	sc->sc_captbuf = (u_int8_t *)block;
488 	sc->sc_captbufsz = blksize;
489 
490 	return 0;
491 }
492 
493 int
494 toccata_halt_output(void *addr) {
495 	struct toccata_softc *sc;
496 	struct ad1848_softc *asc;
497 	unsigned reg;
498 
499 	sc = addr;
500 	asc = &sc->sc_ad;
501 
502 	/* we're half_duplex; be brutal */
503 	*sc->sc_boardp = TOCC_PB_TAIL;
504 	sc->sc_playmore = 0;
505 
506 	reg = ad_read(&sc->sc_ad, SP_INTERFACE_CONFIG);
507 	ad_write(&sc->sc_ad, SP_INTERFACE_CONFIG, (reg & ~PLAYBACK_ENABLE));
508 
509 	return 0;
510 }
511 
512 int
513 toccata_start_output(void *addr, void *block, int blksize,
514 	void (*intr)(void*), void *intrarg) {
515 
516 	struct toccata_softc *sc;
517 	unsigned reg;
518 	int i;
519 	volatile u_int8_t *cmd, *fifo;
520 	u_int8_t *buf;
521 
522 	sc = addr;
523 	buf = block;
524 
525 	cmd = sc->sc_boardp;
526 	fifo = sc->sc_boardp + TOCC_FIFO_DATA;
527 
528 	if (sc->sc_playmore == 0) {
529 		*cmd = TOCC_ACT;
530 		*cmd = TOCC_PB_PREP;
531 	}
532 
533 	/*
534 	 * We rounded the blocksize to a multiple of 4 bytes. Modest
535 	 * unrolling saves 2% of cputime playing 48000 16bit stereo
536 	 * on 68040/25MHz.
537 	 */
538 
539 	for (i = blksize/4 - 1; i>=0; --i) {
540 		*fifo = *buf++;
541 		*fifo = *buf++;
542 		*fifo = *buf++;
543 		*fifo = *buf++;
544 	}
545 
546 	if (sc->sc_playmore == 0) {
547 		reg = ad_read(&sc->sc_ad, SP_INTERFACE_CONFIG);
548 		ad_write(&sc->sc_ad, SP_INTERFACE_CONFIG,
549 		    (reg | PLAYBACK_ENABLE));
550 
551 		/* we're half-duplex, be brutal */
552 		*sc->sc_boardp = TOCC_PB_MAIN;
553 	}
554 
555 	sc->sc_playarg = intrarg;
556 	sc->sc_playmore = intr;
557 
558 	return 0;
559 }
560 
561 static ad1848_devmap_t csmapping[] = {
562 	{ TOCCATA_MIC_IN_LVL, AD1848_KIND_MICGAIN, -1 },
563 	{ TOCCATA_AUX1_LVL, AD1848_KIND_LVL, AD1848_AUX1_CHANNEL },
564 	{ TOCCATA_AUX1_MUTE, AD1848_KIND_MUTE, AD1848_AUX1_CHANNEL },
565 	{ TOCCATA_AUX2_LVL, AD1848_KIND_LVL, AD1848_AUX2_CHANNEL },
566 	{ TOCCATA_AUX2_MUTE, AD1848_KIND_MUTE, AD1848_AUX2_CHANNEL },
567 	{ TOCCATA_OUTPUT_LVL, AD1848_KIND_LVL, AD1848_DAC_CHANNEL },
568 	{ TOCCATA_MONITOR_LVL, AD1848_KIND_LVL, AD1848_MONITOR_CHANNEL },
569 	{ TOCCATA_MONITOR_MUTE, AD1848_KIND_MUTE, AD1848_MONITOR_CHANNEL },
570 	{ TOCCATA_REC_LVL, AD1848_KIND_RECORDGAIN, -1 },
571 	{ TOCCATA_RECORD_SOURCE, AD1848_KIND_RECORDSOURCE, -1 },
572 /* only in mode 2: */
573 	{ TOCCATA_LINE_IN_LVL, AD1848_KIND_LVL, AD1848_LINE_CHANNEL },
574 	{ TOCCATA_LINE_IN_MUTE, AD1848_KIND_MUTE, AD1848_LINE_CHANNEL },
575 };
576 
577 #define nummap (sizeof(csmapping) / sizeof(csmapping[0]))
578 
579 int
580 toccata_set_port(void *addr, mixer_ctrl_t *cp) {
581 	struct ad1848_softc *ac = addr;
582 
583 	/* printf("set_port(%d)\n", cp->dev); */
584 	return (ad1848_mixer_set_port(ac, csmapping,
585 		ac->mode == 2 ? nummap : nummap - 2, cp));
586 }
587 
588 int
589 toccata_get_port(void *addr, mixer_ctrl_t *cp) {
590 	struct ad1848_softc *ac = addr;
591 
592 	/* printf("get_port(%d)\n", cp->dev); */
593 	return (ad1848_mixer_get_port(ac, csmapping,
594 		ac->mode == 2 ? nummap : nummap - 2, cp));
595 }
596 
597 int
598 toccata_query_devinfo(void *addr, mixer_devinfo_t *dip) {
599 
600 	printf("toccata_query_devinfo(%2d)\n", dip->index);
601 
602 	switch(dip->index) {
603 	case TOCCATA_MIC_IN_LVL:	/* Microphone */
604 		dip->type = AUDIO_MIXER_VALUE;
605 		dip->mixer_class = TOCCATA_INPUT_CLASS;
606 		dip->prev = dip->next = AUDIO_MIXER_LAST;
607 		strcpy(dip->label.name, AudioNmicrophone);
608 		dip->un.v.num_channels = 1;
609 		strcpy(dip->un.v.units.name, AudioNvolume);
610 		break;
611 #if 0
612 
613 	case TOCCATA_MONO_LVL:	/* mono/microphone mixer */
614 		dip->type = AUDIO_MIXER_VALUE;
615 		dip->mixer_class = TOCCATA_INPUT_CLASS;
616 		dip->prev = AUDIO_MIXER_LAST;
617 		dip->next = TOCCATA_MONO_MUTE;
618 		strcpy(dip->label.name, AudioNmicrophone);
619 		dip->un.v.num_channels = 1;
620 		strcpy(dip->un.v.units.name, AudioNvolume);
621 		break;
622 #endif
623 
624 	case TOCCATA_AUX1_LVL:		/*  dacout */
625 		dip->type = AUDIO_MIXER_VALUE;
626 		dip->mixer_class = TOCCATA_INPUT_CLASS;
627 		dip->prev = AUDIO_MIXER_LAST;
628 		dip->next = TOCCATA_AUX1_MUTE;
629 		strcpy(dip->label.name, "aux1");
630 		dip->un.v.num_channels = 2;
631 		strcpy(dip->un.v.units.name, AudioNvolume);
632 		break;
633 
634 	case TOCCATA_AUX1_MUTE:
635 		dip->mixer_class = TOCCATA_INPUT_CLASS;
636 		dip->type = AUDIO_MIXER_ENUM;
637 		dip->prev = TOCCATA_AUX1_LVL;
638 		dip->next = AUDIO_MIXER_LAST;
639 		goto mute;
640 
641 
642 
643 	case TOCCATA_AUX2_LVL:
644 		dip->type = AUDIO_MIXER_VALUE;
645 		dip->mixer_class = TOCCATA_INPUT_CLASS;
646 		dip->prev = AUDIO_MIXER_LAST;
647 		dip->next = TOCCATA_AUX2_MUTE;
648 		strcpy(dip->label.name, "aux2");
649 		dip->un.v.num_channels = 2;
650 		strcpy(dip->un.v.units.name, AudioNvolume);
651 		break;
652 
653 	case TOCCATA_AUX2_MUTE:
654 		dip->mixer_class = TOCCATA_INPUT_CLASS;
655 		dip->type = AUDIO_MIXER_ENUM;
656 		dip->prev = TOCCATA_AUX2_LVL;
657 		dip->next = AUDIO_MIXER_LAST;
658 		goto mute;
659 
660 
661 	case TOCCATA_MONITOR_LVL:	/* monitor level */
662 		dip->type = AUDIO_MIXER_VALUE;
663 		dip->mixer_class = TOCCATA_MONITOR_CLASS;
664 		dip->next = TOCCATA_MONITOR_MUTE;
665 		dip->prev = AUDIO_MIXER_LAST;
666 		strcpy(dip->label.name, AudioNmonitor);
667 		dip->un.v.num_channels = 1;
668 		strcpy(dip->un.v.units.name, AudioNvolume);
669 		break;
670 
671 	case TOCCATA_OUTPUT_LVL:	/* output volume */
672 		dip->type = AUDIO_MIXER_VALUE;
673 		dip->mixer_class = TOCCATA_OUTPUT_CLASS;
674 		dip->prev = dip->next = AUDIO_MIXER_LAST;
675 		strcpy(dip->label.name, AudioNmaster);
676 		dip->un.v.num_channels = 2;
677 		strcpy(dip->un.v.units.name, AudioNvolume);
678 		break;
679 #if 0
680 	case TOCCATA_LINE_IN_LVL:	/* line */
681 		dip->type = AUDIO_MIXER_VALUE;
682 		dip->mixer_class = TOCCATA_INPUT_CLASS;
683 		dip->prev = AUDIO_MIXER_LAST;
684 		dip->next = TOCCATA_LINE_IN_MUTE;
685 		strcpy(dip->label.name, AudioNline);
686 		dip->un.v.num_channels = 2;
687 		strcpy(dip->un.v.units.name, AudioNvolume);
688 		break;
689 
690 	case TOCCATA_LINE_IN_MUTE:
691 		dip->mixer_class = TOCCATA_INPUT_CLASS;
692 		dip->type = AUDIO_MIXER_ENUM;
693 		dip->prev = TOCCATA_LINE_IN_LVL;
694 		dip->next = AUDIO_MIXER_LAST;
695 		goto mute;
696 #endif
697 	case TOCCATA_MONITOR_MUTE:
698 		dip->mixer_class = TOCCATA_MONITOR_CLASS;
699 		dip->type = AUDIO_MIXER_ENUM;
700 		dip->prev = TOCCATA_MONITOR_LVL;
701 		dip->next = AUDIO_MIXER_LAST;
702 	mute:
703 		strcpy(dip->label.name, AudioNmute);
704 		dip->un.e.num_mem = 2;
705 		strcpy(dip->un.e.member[0].label.name, AudioNoff);
706 		dip->un.e.member[0].ord = 0;
707 		strcpy(dip->un.e.member[1].label.name, AudioNon);
708 		dip->un.e.member[1].ord = 1;
709 		break;
710 
711 	case TOCCATA_REC_LVL:	/* record level */
712 		dip->type = AUDIO_MIXER_VALUE;
713 		dip->mixer_class = TOCCATA_INPUT_CLASS;
714 		dip->prev = AUDIO_MIXER_LAST;
715 		dip->next = TOCCATA_RECORD_SOURCE;
716 		strcpy(dip->label.name, AudioNrecord);
717 		dip->un.v.num_channels = 2;
718 		strcpy(dip->un.v.units.name, AudioNvolume);
719 		break;
720 
721 	case TOCCATA_RECORD_SOURCE:
722 		dip->mixer_class = TOCCATA_RECORD_CLASS;
723 		dip->type = AUDIO_MIXER_ENUM;
724 		dip->prev = TOCCATA_REC_LVL;
725 		dip->next = AUDIO_MIXER_LAST;
726 		strcpy(dip->label.name, AudioNsource);
727 		dip->un.e.num_mem = 4;
728 		strcpy(dip->un.e.member[0].label.name, AudioNmicrophone);
729 		dip->un.e.member[1].ord = MIC_IN_PORT;
730 		strcpy(dip->un.e.member[1].label.name, AudioNline);
731 		dip->un.e.member[3].ord = LINE_IN_PORT;
732 		strcpy(dip->un.e.member[2].label.name, "aux1");
733 		dip->un.e.member[2].ord = AUX1_IN_PORT;
734 		strcpy(dip->un.e.member[3].label.name, AudioNoutput);
735 		dip->un.e.member[0].ord = DAC_IN_PORT;
736 		break;
737 
738 	case TOCCATA_INPUT_CLASS:		/* input class descriptor */
739 		dip->type = AUDIO_MIXER_CLASS;
740 		dip->mixer_class = TOCCATA_INPUT_CLASS;
741 		dip->next = dip->prev = AUDIO_MIXER_LAST;
742 		strcpy(dip->label.name, AudioCinputs);
743 		break;
744 
745 	case TOCCATA_OUTPUT_CLASS:		/* output class descriptor */
746 		dip->type = AUDIO_MIXER_CLASS;
747 		dip->mixer_class = TOCCATA_OUTPUT_CLASS;
748 		dip->next = dip->prev = AUDIO_MIXER_LAST;
749 		strcpy(dip->label.name, AudioCoutputs);
750 		break;
751 
752 	case TOCCATA_MONITOR_CLASS:		/* monitor class descriptor */
753 		dip->type = AUDIO_MIXER_CLASS;
754 		dip->mixer_class = TOCCATA_MONITOR_CLASS;
755 		dip->next = dip->prev = AUDIO_MIXER_LAST;
756 		strcpy(dip->label.name, AudioCmonitor);
757 		break;
758 
759 	case TOCCATA_RECORD_CLASS:		/* record source class */
760 		dip->type = AUDIO_MIXER_CLASS;
761 		dip->mixer_class = TOCCATA_RECORD_CLASS;
762 		dip->next = dip->prev = AUDIO_MIXER_LAST;
763 		strcpy(dip->label.name, AudioCrecord);
764 		break;
765 
766 	default:
767 		return ENXIO;
768 		/*NOTREACHED*/
769 	}
770 
771 	return (0);
772 }
773